42 results on '"Piek JM"'
Search Results
2. BRCA2 syndrome
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Eeles, R, Piver, S, Lakhani, SR, Piek, JM, Ashworth, A, Devilee, P, Narod, S, Meijers-Heijboer, EJ, Venkitaraman, AR, Tavassoli, FA, and Clinical Genetics
- Published
- 2003
3. The Information Technology (IT) Infrastructure of the Multicenter Archipelago of Ovarian Cancer Research Biobank: A Potential Blueprint for Other Biobanks.
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Zelisse HS, de Ridder S, van Gent MDJM, Mom CH, Wisman GBA, Roes EM, Reyners AKL, Piek JM, Nieuwenhuyzen-de Boer GM, Lok CAR, de Kroon CD, Kooreman LFS, Janssen MJ, Jansen MPHM, Horlings HM, Collée M, Broeks A, Boere IA, Bart J, van Altena AM, Heeling M, Stoter IM, Voorham QJ, van de Vijver MJ, Dijk F, and Belien JAM
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- Humans, Female, Netherlands, Information Technology, Software, Ovarian Neoplasms pathology, Ovarian Neoplasms genetics, Biological Specimen Banks organization & administration
- Abstract
Objective: Biobanks play a crucial role in fundamental and translational research by storing valuable biomaterials and data for future analyses. However, the design of their information technology (IT) infrastructures is often customized to specific requirements, thereby lacking the ability to be used for biobanks comprising other (types of) diseases. This results in substantial costs, time, and efforts for each new biobank project. The Dutch multicenter Archipelago of Ovarian Cancer Research (AOCR) biobank has developed an innovative, reusable IT infrastructure capable of adaptation to various biobanks, thereby enabling cost-effective and efficient implementation and management of biobank IT systems. Methods and Results: The AOCR IT infrastructure incorporates preexisting biobank software, mainly managed by Health-RI. The web-based registration tool Ldot is used for secure storage and pseudonymization of patient data. Clinicopathological data are retrieved from the Netherlands Cancer Registry and the Dutch nationwide pathology databank (Palga), both established repositories, reducing administrative workload and ensuring high data quality. Metadata of collected biomaterials are stored in the OpenSpecimen system. For digital pathology research, a hematoxylin and eosin-stained slide from each patient's tumor is digitized and uploaded to Slide Score. Furthermore, adhering to the Findable, Accessible, Interoperable, and Reusable (FAIR) principles, genomic data derived from the AOCR samples are stored in cBioPortal. Conclusion: The IT infrastructure of the AOCR biobank represents a new standard for biobanks, offering flexibility to handle diverse diseases and types of biomaterials. This infrastructure bypasses the need for disease-specific, custom-built software, thereby being cost- and time-effective while ensuring data quality and legislative compliance. The adaptability of this infrastructure highlights its potential to serve as a blueprint for the development of IT infrastructures in both new and existing biobanks.
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- 2024
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4. Response to systemic therapies in patient-derived cell lines from primary and recurrent adult granulosa cell tumors.
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Brink GJ, Hami N, Mertens S, Nijman HW, van Lonkhuijzen LR, Roes EM, Lok CAR, de Kroon CD, Piek JM, Hofhuis W, Snippert HJG, Groeneweg JW, Witteveen PO, and Zweemer RP
- Abstract
In patients with the rare adult-type granulosa cell tumors (aGCT), surgery is the primary treatment for both primary and recurrent disease. In cases of inoperable disease, systematic therapy is administered, but variable response rates and drug resistance complicate predicting the most effective therapy. Drug screen testing on patient-derived cell lines may offer a solution. In a national prospective study on aGCT, fresh tissue was cultured into 2D cell lines, testing 27 clinically and experimental drugs. Dose-response curves and synergy were calculated using GraphPad Prism and Compusyn software. We established 34 patient-derived cell lines from tissue of 20 adult granulosa cell tumor patients. Of these, seven patients had a primary diagnosis of adult granulosa cell tumor and 13 patients had recurrent disease. In eight patients multiple tumor locations were cultured. On each cell line 10 monotherapies and 17 combinations of drugs were tested. Carboplatin/gemcitabine showed efficacy and synergy in almost all patient-derived cell lines. Synergy could not be detected in the regular carboplatin/paclitaxel and carboplatin/etoposide combinations. Experimental combinations alpelisib/fulvestrant and alpelisib/gemcitabine showed efficacy of more than 75%. Drug screens on patient-derived tumor cell lines reflects the reality of the variable response of systemic therapy in aGCT patients. In future research, this technique may be used to personalize the systemic treatment of aGCT patients in a clinical study. The good response to carboplatin/gemcitabine in our patient-derived cell lines can then be confirmed in a clinical setting.
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- 2024
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5. Prognostic factors in uterine adenosarcoma: subanalysis of the SARCUT study.
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Mancari R, Yusuf Y, Macuks R, Achimas-Cadariu P, Piek JM, Sperduti I, Corrado G, Vizza E, and Zapardiel I
- Abstract
Objective: The purpose of the study was to analyse the role of prognostic factors on the risk of recurrence and overall survival of patients with uterine adenosarcoma., Methods: A retrospective international multicentre study involving 46 centres collected 32 cases of uterine adenosarcoma, and these cases were included in the present subanalysis. Clinical and demographic features and tumour characteristics were gathered, as well as information on treatment and relapse. Disease-free and overall survival were analysed., Results: The 5-year disease-free survival (DFS) was 85.3% and the 5-year overall survival (OS) rate was 89.5%. The risk factors significantly associated with overall survival were age (HR 1.09, 95% CI 1.03-1.15; p = 0.004) and FIGO stage II-III (HR 17.75, 95% CI 2.87-109.93; p = 0.002). Patients who experienced early relapse (within 12 months) had a tumour size >30 mm and advanced stage. The majority of recurred cases were treated with radiotherapy or surgery and obtained a good response rate., Conclusion: The most significant prognostic factors in uterine adenosarcoma were age and FIGO stage and, indirectly, tumour size at diagnosis. The use of secondary surgery and/or radiotherapy could help in prolonging the disease-free status of the patients., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. The author(s) declared that they were an editorial board member of Frontiers, at the time of submission. This had no impact on the peer review process and the final decision., (Copyright © 2024 Mancari, Yusuf, Macuks, Achimas-Cadariu, Piek, Sperduti, Corrado, Vizza and Zapardiel.)
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- 2024
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6. Phenotype-guided targeted therapy based on functional signal transduction pathway activity in recurrent ovarian cancer patients: The STAPOVER study protocol.
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van der Ploeg P, Hendrikse CS, Thijs AM, Westgeest HM, Smedts HP, Vos MC, Jalving M, Lok CA, Boere IA, van Ham MA, Ottevanger PB, Westermann AM, Mom CH, Lalisang RI, Lambrechts S, Bekkers RL, and Piek JM
- Abstract
Objective: Ovarian cancer is the fifth cause of cancer-related death among women. The benefit of targeted therapy for ovarian cancer patients is limited even if treatment is stratified by molecular signature. There remains a high unmet need for alternative diagnostics that better predict targeted therapy, as current diagnostics are generally inaccurate predictors. Quantitative assessment of functional signal transduction pathway (STP) activity from mRNA measurements of target genes is an alternative approach. Therefore, we aim to identify aberrantly activated STPs in tumour tissue of patients with recurrent ovarian cancer and start phenotype -guided targeted therapy to improve survival without compromising quality of life., Study Design: Patients with recurrent ovarian cancer and either 1) have platinum-resistant disease, 2) refrain from standard therapy or 3) are asymptomatic and not yet eligible for standard therapy will be included in this multi-centre prospective cohort study with multiple stepwise executed treatment arms. Targeted therapy will be available for patients with aberrantly high functional activity of the oestrogen receptor, androgen receptor, phosphoinositide 3-kinase or Hedgehog STP. The primary endpoint of this study is the progression-free survival (PFS) ratio (PFS2/PFS1 ratio) according to RECIST 1.1 determined by the PFS on matched targeted therapy (PFS2) compared to PFS on prior therapy (PFS1). Secondary endpoints include among others best overall response, overall survival, side effects, health-related quality of life and cost-effectiveness., Conclusion: The results of this study will show the clinical applicability of STP activity in selecting recurrent ovarian cancer patients for effective therapies., Competing Interests: The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Jurgen Piek reports equipment, drugs, or supplies was provided by InnoSIGN. Phyllis van der Ploeg reports a relationship with Catharina Research Fund that includes: funding grants. Cynthia Hendrikse reports a relationship with Catharina Research Fund that includes: funding grants. Phyllis van der Ploeg reports a relationship with InnoSIGN that includes: funding grants. Cynthia Hendrikse reports a relationship with InnoSIGN that includes: funding grants., (© 2024 The Authors. Published by Elsevier Ltd.)
- Published
- 2023
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7. The Devil Is in the Details.
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Piek JM and Tamussino K
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- 2023
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8. Prognostic factors in patients with uterine sarcoma: the SARCUT study.
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Zapardiel I, Gracia Segovia M, Macuks R, Mancari R, Achimas-Cadariu P, Corrado G, Bartusevicius A, Sukhin V, Muruzabal JC, Coronado Martín PJ, Gardella B, Piek JM, Concin N, Arab C, Papatheodorou D, Polterauer S, Iacoponi S, Nieto T, Lopez-Sanclemente MC, Trukhan H, Gil MM, Bakinovskaya I, Dalamanava A, Cucurull M, Rovski D, Baquedano L, Chiva L, Mardas M, Mavrichev SA, Klat J, Lopez de la Manzanara CA, and Yildirim Y
- Subjects
- Female, Humans, Prognosis, Retrospective Studies, Neoplasm Recurrence, Local, Leiomyosarcoma pathology, Adenosarcoma therapy, Adenosarcoma pathology, Sarcoma, Endometrial Stromal therapy, Sarcoma, Endometrial Stromal pathology, Sarcoma diagnosis, Uterine Neoplasms pathology, Pelvic Neoplasms, Endometrial Neoplasms pathology
- Abstract
Objective: Uterine sarcomas are a rare and heterogeneous group of malignancies that include different histological sub-types. The aim of this study was to identify and evaluate the impact of the different prognostic factors on overall survival and disease-free survival of patients with uterine sarcoma., Methods: This international multicenter retrospective study included 683 patients diagnosed with uterine sarcoma at 46 different institutions between January 2001 and December 2007., Results: The 5-year overall survival for leiomyosarcoma, endometrial stromal sarcoma, undifferentiated sarcoma, and adenosarcoma was 65.3%, 78.3%, 52.4%, and 89.5%, respectively, and the 5-year disease-free survival was 54.3%, 68.1%, 40.3%, and 85.3%, respectively. The 10-year overall survival for leiomyosarcoma, endometrial stromal sarcoma, undifferentiated sarcoma and adenosarcoma was 52.6%, 64.8%, 52.4%, and 79.5%, respectively, and the 10-year disease-free survival was 44.7%, 53.3%, 40.3%, and 77.5%, respectively. The most significant factor associated with overall survival in all types of sarcoma except for adenosarcoma was the presence of residual disease after primary treatment. In adenosarcoma, disease stage at diagnosis was the most important factor (hazard ratio 17.7; 95% CI 2.86 to 109.93)., Conclusion: Incomplete cytoreduction, tumor persistence, advanced stage, extra-uterine and tumor margin involvement, and the presence of necrosis were relevant prognostic factors significantly affecting overall survival in uterine sarcoma. The presence of lymph vascular space involvement and administration of adjuvant chemotherapy were significantly associated with a higher risk of relapse., Competing Interests: Competing interests: None declared., (© IGCS and ESGO 2023. No commercial re-use. See rights and permissions. Published by BMJ.)
- Published
- 2023
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9. Cancer worry among BRCA1/2 pathogenic variant carriers choosing surgery to prevent tubal/ovarian cancer: course over time and associated factors.
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van Bommel MHD, Steenbeek MP, IntHout J, Hermens RPMG, Hoogerbrugge N, Harmsen MG, van Doorn HC, Mourits MJE, van Beurden M, Zweemer RP, Gaarenstroom KN, Slangen BFM, Brood-van Zanten MMA, Vos MC, Piek JM, van Lonkhuijzen LRCW, Apperloo MJA, Coppus SFPJ, Prins JB, Custers JAE, and de Hullu JA
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- BRCA1 Protein genetics, Female, Genetic Predisposition to Disease, Heterozygote, Humans, Mutation, Prospective Studies, Salpingectomy, Salpingo-oophorectomy, Breast Neoplasms, Ovarian Neoplasms genetics, Ovarian Neoplasms pathology, Ovarian Neoplasms surgery
- Abstract
Objective: High cancer risks, as applicable to BRCA1 and BRCA2 pathogenic variant (PV) carriers, can induce significant cancer concerns. We examined the degree of cancer worry and the course of this worry among BRCA1/2-PV carriers undergoing surgery to prevent ovarian cancer, and identified factors associated with high cancer worry., Methods: Cancer worry was evaluated as part of the multicentre, prospective TUBA-study (NCT02321228) in which BRCA1/2-PV carriers choose either novel risk-reducing salpingectomy with delayed oophorectomy or standard risk-reducing salpingo-oophorectomy. The Cancer Worry Scale was obtained before and 3 and 12 months after surgery. Cancer worry patterns were analysed using latent class growth analysis and associated factors were identified with regression analysis., Results: Of all 577 BRCA1/2-PV carriers, 320 (57%) had high (≥ 14) cancer worry pre-surgery, and 54% had lower worry 12 months post-surgery than pre-surgery. Based on patterns over time, BRCA1/2-PV carriers could be classified into three groups: persistently low cancer worry (56%), persistently high cancer worry (6%), and fluctuating, mostly declining, cancer worry (37%). Factors associated with persistently high cancer concerns were age below 35 (BRCA1) or 40 (BRCA2), unemployment, previous breast cancer, lower education and a more recent BRCA1/2-PV diagnosis., Conclusions: Some degree of cancer worry is considered normal, and most BRCA1/2-PV carriers have declining cancer worry after gynaecological risk-reducing surgery. However, a subset of these BRCA1/2-PV carriers has persisting major cancer concerns up to 1 year after surgery. They should be identified and potentially offered additional support., Clinical Trial Registration: The TUBA-study is registered at ClinicalTrials.gov since December 11th, 2014. Registration number: NCT02321228., (© 2021. The Author(s).)
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- 2022
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10. Establishment of the Dutch Nationwide, Interdisciplinary Infrastructure and Biobank for Fundamental and Translational Ovarian Cancer Research: Archipelago of Ovarian Cancer Research.
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Zelisse HS, van Gent MDJM, de Ridder S, van der Aa MA, van Altena AM, Bart J, Belien JAM, Boere IA, Bosch SL, Broeks A, Bulten J, Collée M, Groenendijk FH, Horlings HM, Jansen MPHM, Jonges TGN, Kooreman LFS, de Kroon CD, Lambrechts S, Lok CAR, Piek JM, Reyners AKL, Roes EM, Simons M, Wisman GBA, Yigit R, Zweemer RP, Mom CH, van de Vijver MJ, and Dijk F
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- Humans, Female, Translational Research, Biomedical, Prospective Studies, Biological Specimen Banks, Ovarian Neoplasms surgery
- Abstract
Objectives: Ovarian cancer has the worst overall survival rate of all gynecologic malignancies. For the majority of patients, the 5-year overall survival rate of less than 50% has hardly improved over the last decades. To improve the outcome of patients with all subtypes of ovarian cancer, large-scale fundamental and translational research is needed. To accommodate these types of ovarian cancer research, we have established a Dutch nationwide, interdisciplinary infrastructure and biobank: the Archipelago of Ovarian Cancer Research (AOCR). The AOCR will facilitate fundamental and translational ovarian cancer research and enhance interdisciplinary, national, and international collaboration., Design: The AOCR biobank is a prospective ovarian cancer biobank in which biomaterials are collected, processed, and stored in a uniform matter for future (genetic) scientific research. All 19 Dutch hospitals in which ovarian cancer surgery is performed participate and collaborate in the AOCR biobank., Participants/materials, Setting, Methods: Patients of 16 years and older with suspected or diagnosed ovarian, fallopian tube, or primary peritoneal cancer are recruited for participation. Patients who agree to participate give written informed consent for collection, storage, and issue of their biomaterials for future studies. After inclusion, different blood samples are taken at various predefined time points both before and during treatment. In case of a diagnostic paracentesis or biopsy, the residual biomaterials of these procedures are stored in the biobank. During surgery, primary tumor tissue and, if applicable, tissue from metastatic sites are collected and stored. From each patient, a representative histological hematoxylin and eosin stained slide is digitalized for research purposes, including reassessment by a panel of gynecologic pathologists. Clinical and pathological data are obtained on a per-study basis from Dutch registries. Research proposals for the issue of biomaterials and data are evaluated by both the Archipelago Scientific Committee and the Steering Committee. Researchers using the biomaterials from the AOCR biobank are encouraged to enrich the biobank with data and materials resulting from their analyses and experiments., Limitations: The implementation and first 4 years of collection are financed by an infrastructural grant from the Dutch Cancer Society. Therefore, the main limitation is that the costs for sustaining the biobank after the funding period will have to be covered. This coverage will come from incorporation of budget for biobanking in future grant applications and from fees from external researchers and commercial parties using the biomaterials stored in the AOCR biobank. Moreover, we will apply for grants aimed at sustaining and improving research infrastructures and biobanks., Conclusions: With the establishment of the Dutch nationwide, interdisciplinary Archipelago of Ovarian Cancer Research infrastructure and biobank, fundamental and translational research on ovarian cancer can be greatly improved. The ultimate aim of this infrastructure is that it will lead to improved diagnostics, treatment, and survival of patients with ovarian cancer., (© 2022 The Author(s). Published by S. Karger AG, Basel.)
- Published
- 2022
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11. Evaluation of a patient decision aid for BRCA1/2 pathogenic variant carriers choosing an ovarian cancer prevention strategy.
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Steenbeek MP, van Bommel MHD, Harmsen MG, Hoogerbrugge N, van Doorn HC, Keurentjes JHM, van Beurden M, Zweemer RP, Gaarenstroom KN, Penders CGJ, Brood-van Zanten MMA, Vos MC, Piek JM, van Lonkhuijzen LRCW, Apperloo MJA, Coppus SFPJ, IntHout J, de Hullu JA, and Hermens RPMG
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- Adult, BRCA1 Protein genetics, BRCA2 Protein genetics, Feasibility Studies, Female, Health Knowledge, Attitudes, Practice, Heterozygote, Humans, Middle Aged, Mutation, Ovarian Neoplasms genetics, Ovariectomy psychology, Ovariectomy statistics & numerical data, Patient Preference, Prophylactic Surgical Procedures psychology, Prospective Studies, Salpingectomy psychology, Salpingectomy statistics & numerical data, Salpingo-oophorectomy psychology, Salpingo-oophorectomy statistics & numerical data, Decision Making, Decision Support Techniques, Genetic Predisposition to Disease, Ovarian Neoplasms prevention & control, Prophylactic Surgical Procedures statistics & numerical data
- Abstract
Objective: Risk-reducing surgery is advised to BRCA1/2 pathogenic variant (PV) carriers around the age of 40 years to reduce ovarian cancer risk. In the TUBA-study, a multicenter preference study (NCT02321228), BRCA1/2-PV carriers are offered a choice: the standard strategy of risk-reducing salpingo-oophorectomy or the novel strategy of risk-reducing salpingectomy with delayed oophorectomy. We evaluated feasibility and effectiveness of a patient decision aid for this choice., Methods: Premenopausal BRCA1/2-PV carriers were counselled for risk-reducing surgical options in the TUBA-study; the first cohort was counselled without and the second cohort with decision aid. Evaluation was performed using digital questionnaires for participating women and their healthcare professionals. Outcome measures included actual choice, feasibility (usage and experiences) and effectiveness (knowledge, cancer worry, decisional conflict, decisional regret and self-estimated influence on decision)., Results: 283 women were counselled without and 282 women with decision aid. The novel strategy was chosen less frequently in women without compared with women with decision aid (67% vs 78%, p = 0.004). The decision aid was graded with an 8 out of 10 by both women and professionals, and 78% of the women would recommend this decision aid to others. Users of the decision aid reported increased knowledge about the options and increased insight in personal values. Knowledge on cancer risk, decisional conflict, decisional regret and cancer worry were similar in both cohorts., Conclusions: The use of the patient decision aid for risk-reducing surgery is feasible, effective and highly appreciated among BRCA1/2-PV carriers facing the decision between salpingo-oophorectomy or salpingectomy with delayed oophorectomy., Competing Interests: Declaration of Competing Interest The authors declare that there is no conflict of interest., (Copyright © 2021 The Authors. Published by Elsevier Inc. All rights reserved.)
- Published
- 2021
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12. External validation of Risk of Malignancy Index compared to IOTA Simple Rules.
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Mulder EE, Gelderblom ME, Schoot D, Vergeldt TF, Nijssen DL, and Piek JM
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- Adolescent, Adult, Aged, Aged, 80 and over, Cohort Studies, Diagnosis, Differential, Female, Humans, Middle Aged, Predictive Value of Tests, Risk Assessment methods, Ultrasonography, Young Adult, Ovarian Neoplasms diagnostic imaging, Ovarian Neoplasms pathology
- Abstract
Background: Mathematical predictive models for ovarian tumors have an advantage over subjective assessment due to their relative simplicity, and therefore usefulness for less experienced sonographers. It is currently unclear which predictive model is best at predicting the nature of an ovarian tumor., Purpose: To compare the diagnostic predictive accuracy of the International Ovarian Tumour Analysis Simple Rules (IOTA SR) with Risk of Malignancy Index (RMI), to differentiate between benign and malignant ovarian tumors., Material and Methods: A total of 202 women diagnosed with ovarian tumor(s) were included. Preoperatively, patients were examined through transvaginal ultrasonography and CA-125 (U/mL) levels were measured. RMI and IOTA SR were determined, and where possible compared to definitive histopathological diagnosis., Results: Of the 202 women with ovarian tumors, 168 women were included in this cohort study. Of these tumors, 118 (70.2%) were benign, 17 (10.1%) were borderline, and 33 (19.7%) were malignant. The sensitivity, specificity, and area under the curve for the RMI were 72.0%, 90.7%, and 0.896, respectively. For the IOTA SR, these were 90.0%, 68.6%, and 0.793, respectively., Conclusion: This cohort study shows that the RMI is a relatively useful diagnostic model in characterizing ovarian tumors, compared to the IOTA SR. However, due to the relatively low sensitivity of the RMI and high rate of inconclusive results of the IOTA SR, both diagnostic tests do not seem discriminative enough. Therefore, alternative diagnostic models are necessary.
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- 2021
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13. Hysterectomy with opportunistic salpingectomy versus hysterectomy alone.
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van Lieshout LAM, Steenbeek MP, De Hullu JA, Vos MC, Houterman S, Wilkinson J, and Piek JM
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- Female, Humans, Postoperative Complications prevention & control, Quality of Life, Randomized Controlled Trials as Topic, Treatment Outcome, Hysterectomy methods, Ovarian Neoplasms surgery, Salpingectomy methods
- Abstract
Background: Ovarian cancer has the highest mortality rate of all gynaecological malignancies with an overall five-year survival rate of 30% to 40%. In the past two decades it has become apparent and more commonly accepted that a majority of ovarian cancers originate in the fallopian tube epithelium and not from the ovary itself. This paradigm shift introduced new possibilities for ovarian cancer prevention. Salpingectomy during a hysterectomy for benign gynaecological indications (also known as opportunistic salpingectomy) might reduce the overall incidence of ovarian cancer. Aside from efficacy, safety is of utmost importance, especially due to the preventive nature of opportunistic salpingectomy. Most important are safety in the form of surgical adverse events and postoperative hormonal status. Therefore, we compared the benefits and risks of hysterectomy with opportunistic salpingectomy to hysterectomy without opportunistic salpingectomy., Objectives: To assess the effect and safety of hysterectomy with opportunistic salpingectomy versus hysterectomy without salpingectomy for ovarian cancer prevention in women undergoing hysterectomy for benign gynaecological indications; outcomes of interest include the incidence of epithelial ovarian cancer, surgery-related adverse events and postoperative ovarian reserve., Search Methods: The Cochrane Gynaecology and Fertility (CGF) Group trials register, CENTRAL, MEDLINE, Embase, PsycINFO, CINAHL and two clinical trial registers were searched in January 2019 together with reference checking and contact with study authors., Selection Criteria: We intended to include both randomised controlled trials (RCTs) and non-RCTs that compared ovarian cancer incidence after hysterectomy with opportunistic salpingectomy to hysterectomy without opportunistic salpingectomy in women undergoing hysterectomy for benign gynaecological indications. For assessment of surgical and hormonal safety, we included RCTs that compared hysterectomy with opportunistic salpingectomy to hysterectomy without opportunistic salpingectomy in women undergoing hysterectomy for benign gynaecological indications., Data Collection and Analysis: We used standard methodological procedures recommended by Cochrane. The primary review outcomes were ovarian cancer incidence, intraoperative and short-term postoperative complication rate and postoperative hormonal status. Secondary outcomes were total surgical time, estimated blood loss, conversion rate to open surgery (applicable only to laparoscopic and vaginal approaches), duration of hospital admission, menopause-related symptoms and quality of life., Main Results: We included seven RCTs (350 women analysed). The evidence was of very low to low quality: the main limitations being a low number of included women and surgery-related adverse events, substantial loss to follow-up and a large variety in outcome measures and timing of measurements.No studies reported ovarian cancer incidence after hysterectomy with opportunistic salpingectomy compared to hysterectomy without opportunistic salpingectomy in women undergoing hysterectomy for benign gynaecological indications. For surgery-related adverse events, there were insufficient data to assess whether there was any difference in both intraoperative (odds ratio (OR) 0.66, 95% confidence interval (CI) 0.11 to 3.94; 5 studies, 286 participants; very low-quality evidence) and short-term postoperative (OR 0.13, 95% CI 0.01 to 2.14; 3 studies, 152 participants; very low-quality evidence) complication rates between hysterectomy with opportunistic salpingectomy and hysterectomy without opportunistic salpingectomy because the number of surgery-related adverse events was very low. For postoperative hormonal status, the results were compatible with no difference, or with a reduction in anti-Müllerian hormone (AMH) that would not be clinically relevant (mean difference (MD) -0.94, 95% CI -1.89 to 0.01; I
2 = 0%; 5 studies, 283 participants; low-quality evidence). A reduction in AMH would be unfavourable, but due to wide CIs, the postoperative change in AMH can still vary from a substantial decrease to even a slight increase., Authors' Conclusions: There were no eligible studies reporting on one of our primary outcomes - the incidence of ovarian cancer specifically after hysterectomy with or without opportunistic salpingectomy. However, outside the scope of this review there is a growing body of evidence for the effectiveness of opportunistic salpingectomy itself during other interventions or as a sterilisation technique, strongly suggesting a protective effect. In our meta-analyses, we found insufficient data to assess whether there was any difference in surgical adverse events, with a very low number of events in women undergoing hysterectomy with and without opportunistic salpingectomy. For postoperative hormonal status we found no evidence of a difference between the groups. The maximum difference in time to menopause, calculated from the lower limit of the 95% CI and the natural average AMH decline, would be approximately 20 months, which we consider to be not clinically relevant. However, the results should be interpreted with caution and even more so in very young women for whom a difference in postoperative hormonal status is potentially more clinically relevant. Therefore, there is a need for research on the long-term effects of opportunistic salpingectomy during hysterectomy, particularly in younger women, as results are currently limited to six months postoperatively. This limit is especially important as AMH, the most frequently used marker for ovarian reserve, recovers over the course of several months following an initial sharp decline after surgery. In light of the available evidence, addition of opportunistic salpingectomy should be discussed with each woman undergoing a hysterectomy for benign indication, with provision of a clear overview of benefits and risks.- Published
- 2019
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14. Vulvar mucinous adenocarcinoma with neuroendocrine differentiation: A case report and review of the literature.
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van Rosmalen MH, Reijnen C, Boll D, Pijnenborg JM, van der Wurff AA, and Piek JM
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- Aged, 80 and over, Biomarkers, Tumor analysis, Female, Humans, Immunohistochemistry, Synaptophysin analysis, Synaptophysin biosynthesis, Adenocarcinoma, Mucinous pathology, Vulvar Neoplasms pathology
- Abstract
Background: There are limited cases in literature of patients with mucinous adenocarcinoma of the vulva with neuroendocrine differentiation have. With this new case, we aim to provide an overview of the existing literature and present a tool with relevant markers for the pathologist in the differential diagnosis., Case Description: A 92-year-old multiparous, Caucasian woman presented with a 8 cm spherical tumor of the left major labium. Since the initial punch biopsy was not conclusive, a local resection was performed. Histopathological examination showed mucus production, large pools of mucin with trabeculae and cribriform glandular structures with strongly atypical columnar epithelium. Additional immunohistochemical analysis demonstrated expression of: CEA, CK7, EMA, and the neuroendocrine markers synaptophysin and chromogranin supporting the diagnosis., Conclusion: In this report, we present a new case of a mucinous adenocarcinoma of the vulva with neuroendocrine differentiation based immunohistochemical analysis. Due to the indolent tumor behavior, partial vulvectomy is the therapy of choice., (Copyright © 2016 Elsevier GmbH. All rights reserved.)
- Published
- 2016
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15. Early salpingectomy (TUbectomy) with delayed oophorectomy to improve quality of life as alternative for risk-reducing salpingo-oophorectomy in BRCA1/2 mutation carriers (TUBA study): a prospective non-randomised multicentre study.
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Harmsen MG, Arts-de Jong M, Hoogerbrugge N, Maas AH, Prins JB, Bulten J, Teerenstra S, Adang EM, Piek JM, van Doorn HC, van Beurden M, Mourits MJ, Zweemer RP, Gaarenstroom KN, Slangen BF, Vos MC, van Lonkhuijzen LR, Massuger LF, Hermens RP, and de Hullu JA
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- Adult, Cystadenocarcinoma, Serous epidemiology, Cystadenocarcinoma, Serous genetics, Female, Genetic Predisposition to Disease, Humans, Incidence, Middle Aged, Mutation, Ovarian Neoplasms epidemiology, Ovarian Neoplasms genetics, Ovariectomy adverse effects, Ovariectomy economics, Ovariectomy methods, Quality of Life, Salpingectomy adverse effects, Salpingectomy economics, BRCA1 Protein genetics, BRCA2 Protein genetics, Cystadenocarcinoma, Serous prevention & control, Menopause, Premature psychology, Ovarian Neoplasms prevention & control, Salpingectomy methods
- Abstract
Background: Risk-reducing salpingo-oophorectomy (RRSO) around the age of 40 is currently recommended to BRCA1/2 mutation carriers. This procedure decreases the elevated ovarian cancer risk by 80-96% but it initiates premature menopause as well. The latter is associated with short-term and long-term morbidity, potentially affecting quality of life (QoL). Based on recent insights into the Fallopian tube as possible site of origin of serous ovarian carcinomas, an alternative preventive strategy has been put forward: early risk-reducing salpingectomy (RRS) and delayed oophorectomy (RRO). However, efficacy and safety of this alternative strategy have to be investigated., Methods: A multicentre non-randomised trial in 11 Dutch centres for hereditary cancer will be conducted. Eligible patients are premenopausal BRCA1/2 mutation carriers after completing childbearing without (a history of) ovarian carcinoma. Participants choose between standard RRSO at age 35-40 (BRCA1) or 40-45 (BRCA2) and the alternative strategy (RRS upon completion of childbearing and RRO at age 40-45 (BRCA1) or 45-50 (BRCA2)). Women who opt for RRS but do not want to postpone RRO beyond the currently recommended age are included as well. Primary outcome measure is menopause-related QoL. Secondary outcome measures are ovarian/breast cancer incidence, surgery-related morbidity, histopathology, cardiovascular risk factors and diseases, and cost-effectiveness. Mixed model data analysis will be performed., Discussion: The exact role of the Fallopian tube in ovarian carcinogenesis is still unclear. It is not expected that further fundamental research will elucidate this role in the near future. Therefore, this clinical trial is essential to investigate RRS with delayed RRO as alternative risk-reducing strategy in order to improve QoL., Trial Registration: ClinicalTrials.gov ( NCT02321228 ).
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- 2015
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16. Response on: reduced expression of NDUFS3 and its clinical significance in serous ovarian cancer.
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Piek JM
- Subjects
- Female, Humans, Biomarkers, Tumor metabolism, Cystadenocarcinoma, Serous enzymology, Cystadenoma, Serous enzymology, Down-Regulation physiology, NADH Dehydrogenase metabolism, Ovarian Neoplasms enzymology
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- 2013
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17. The need for more workshops in laparoscopic surgery and surgical anatomy for European gynaecological oncology trainees: a survey by the European Network of Young Gynaecological Oncologists.
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Manchanda R, Halaska MJ, Piek JM, Grabowski JP, Haidopoulos D, Zapardiel I, Gultekin M, Vranes B, Dallaku K, and Bossart M
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- Clinical Competence, Data Collection, Humans, Education, Medical, Continuing, Gynecologic Surgical Procedures education, Gynecology education, Laparoscopy education, Medical Oncology education, Needs Assessment
- Abstract
Objective: The objective of this study was to highlight the relative preference of European gynecologic oncology trainees for workshops that could support and supplement their training needs., Methods: A Web-based survey was sent to 900 trainees on the European Network of Young Gynaecological Oncologists database in November 2011. Respondents were asked to rate a 13-item questionnaire (using a 1- to 5-point Likert scale) on workshop topics they felt would most benefit their training requirements. Free text space for additional topics was also provided. Descriptive analysis was used to describe the mean scores reported for different items. A complete linkage hierarchical cluster analysis with Dendron plot was used to assess any clustering of data, and Cronbach α was used to assess the internal reliability of the questionnaire., Results: One hundred ninety trainees from 37 countries responded to the survey, giving a 21% response rate. The 3 most important topics reported were laparoscopic surgery; surgical anatomy, and imaging techniques in gynecologic oncology. The Dendron plot indicated 4 different clusters of workshops (research related skills, supportive ancillary skills, related nonsurgical subspecialties, and core surgical skills) reflecting different competencies trainees need to meet. There was no significant association between individual country of training and workshop preference. The mean duration of the workshop preferred by 71% of respondents was 2 days. Cronbach α of the 13-item questionnaire was 0.78, which suggests good internal consistency/reliability., Conclusions: This report for the first time highlights the relative importance and significance European trainees attach to some of their training needs in gynecologic oncology. Laparoscopic surgery, surgical anatomy, and imaging appear to be the 3 areas of greatest need. The European Society of Gynaecological Oncology, other national specialist societies, and institutions should direct additional training efforts at these areas.
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- 2013
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18. Comments on "Effects of uterine manipulation on surgical outcomes in laparoscopic management of endometrial cancer: a prospective randomized clinical trial".
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Smid AT, Piek JM, and Pijnenborg JM
- Subjects
- Female, Humans, Carcinoma, Endometrioid pathology, Carcinoma, Endometrioid surgery, Endometrial Neoplasms pathology, Endometrial Neoplasms surgery, Laparoscopy, Uterus surgery
- Published
- 2013
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19. Laparoscopic lymph node dissection should be performed before fertility preserving treatment of patients with cervical cancer.
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Vercellino GF, Piek JM, Schneider A, Köhler C, Mangler M, Speiser D, and Chiantera V
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- Adenocarcinoma therapy, Adult, Brachytherapy, Carcinoma, Squamous Cell therapy, Cervix Uteri surgery, Chemoradiotherapy, Chemotherapy, Adjuvant, Cisplatin administration & dosage, Female, Follow-Up Studies, Humans, Ifosfamide administration & dosage, Laparoscopy, Lymphatic Metastasis, Neoadjuvant Therapy, Neoplasm Recurrence, Local, Neoplasm Staging, Paclitaxel administration & dosage, Pelvis, Prospective Studies, Uterine Cervical Neoplasms therapy, Adenocarcinoma pathology, Antineoplastic Combined Chemotherapy Protocols therapeutic use, Carcinoma, Squamous Cell pathology, Fertility Preservation, Lymph Node Excision, Uterine Cervical Neoplasms pathology
- Abstract
Objective: The aim of this study is to assess our results of treatment of women with stage I cervical cancer>2 cm in diameter seeking fertility preservation. Treatment consisted of Laparoscopic Pelvic and Paraaortic Lymphadenectomy (LPPLND), and when no nodal metastasis was detected, neoadjuvant chemotherapy (NACT) followed by radical vaginal trachelectomy (RVT). Patients with positive lymph nodes underwent primary chemoradiation., Methods: A cohort of women younger than 40 years of age with stage I disease>2 cm who underwent LPPLND and either NACT and RVT or chemoradiation. Oncological outcome was evaluated prospectively., Results: Eighteen women were eligible for this study. Twelve (67%) women were diagnosed with metastasis in one or more pelvic and/or paraaortic lymph nodes, and thus received primary chemoradiation. After a mean follow-up of 25.5 months, three out of these 12 women (25%) developed a recurrence. Six women (33%) underwent NACT and RVT. Three patients experienced complete response to NACT and three patients showed more than 50% tumor size reduction. After a mean follow-up of 30.6 months all six women are free of recurrence. One patient delivered a healthy infant., Conclusions: Staging LPPLND allows separating patients in high or low recurrence risk groups. NACT and RVT seem to be safe for women with completely staged stage I cervical cancer>2 cm in diameter, whereas even after primary chemoradiation, patients with positive lymph nodes experienced recurrence. Therefore, selection of patients with stage I cervical carcinoma>2 cm, eligible for fertility preservation should include histopathologic evaluation of lymph node status before any further treatment., (Copyright © 2012 Elsevier Inc. All rights reserved.)
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- 2012
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20. Genomic aberrations relate early and advanced stage ovarian cancer.
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Zaal A, Peyrot WJ, Berns PM, van der Burg ME, Veerbeek JH, Trimbos JB, Cadron I, van Diest PJ, van Wieringen WN, Krijgsman O, Meijer GA, Piek JM, Timmers PJ, Vergote I, Verheijen RH, Ylstra B, and Zweemer RP
- Subjects
- Adult, Aged, Aged, 80 and over, Cluster Analysis, Comparative Genomic Hybridization, Disease-Free Survival, Female, Gene Dosage genetics, Humans, Kaplan-Meier Estimate, Middle Aged, Neoplasm Staging, Chromosome Aberrations, Genome, Human genetics, Ovarian Neoplasms genetics, Ovarian Neoplasms pathology
- Abstract
Background: Because of the distinct clinical presentation of early and advanced stage ovarian cancer, we aim to clarify whether these disease entities are solely separated by time of diagnosis or whether they arise from distinct molecular events., Methods: Sixteen early and sixteen advanced stage ovarian carcinomas, matched for histological subtype and differentiation grade, were included. Genomic aberrations were compared for each early and advanced stage ovarian cancer by array comparative genomic hybridization. To study how the aberrations correlate to the clinical characteristics of the tumors we clustered tumors based on the genomic aberrations., Results: The genomic aberration patterns in advanced stage cancer equalled those in early stage, but were more frequent in advanced stage (p = 0.012). Unsupervised clustering based on genomic aberrations yielded two clusters that significantly discriminated early from advanced stage (p = 0.001), and that did differ significantly in survival (p = 0.002). These clusters however did give a more accurate prognosis than histological subtype or differentiation grade., Conclusion: This study indicates that advanced stage ovarian cancer either progresses from early stage or from a common precursor lesion but that they do not arise from distinct carcinogenic molecular events. Furthermore, we show that array comparative genomic hybridization has the potential to identify clinically distinct patients.
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- 2012
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21. Solely inhibin B producing ovarian tumour as a cause of secondary amenorrhoea with hot flushes: case report and review of literature.
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van Liempt SW, van Rheenen-Flach LE, van Waesberghe JH, Bleeker MC, Piek JM, and Lambalk CB
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- Adult, Biomarkers, Tumor metabolism, Diagnosis, Differential, Estradiol blood, Female, Follicle Stimulating Hormone blood, Hot Flashes complications, Humans, Inhibins blood, Leiomyoma complications, Leiomyoma diagnostic imaging, Luteinizing Hormone blood, Magnetic Resonance Imaging, Ovarian Neoplasms complications, Ovarian Neoplasms metabolism, Ovary diagnostic imaging, Ovary pathology, Tomography, X-Ray Computed, Ultrasonography, Uterus diagnostic imaging, Uterus pathology, Amenorrhea complications, Inhibins metabolism, Ovarian Neoplasms diagnosis
- Abstract
In this report, we describe a case of a solely inhibin B producing fibrothecoma presenting with secondary amenorrhoea and hot flushes. Typical laboratory findings were an elevated LH, elevated inhibin B, low FSH and low estrogen. The World Health Organization classification of amenorrhoea was not applicable since the combination of low estrogen and low FSH suggested a central cause, whereas actually there was an ovarian cause. With staging laparotomy, a bilateral borderline tumour was detected in combination with a fibrothecoma. This report underpins the concept of inhibin B being a selective FSH secretion inhibitor of ovarian origin. Furthermore, a literature review on these topics is included.
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- 2012
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22. Open versus laparoscopic pelvic lymph node dissection in early stage cervical cancer: no difference in surgical or disease outcome.
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van de Lande J, von Mensdorff-Pouilly S, Lettinga RG, Piek JM, and Verheijen RH
- Subjects
- Adult, Aged, Aged, 80 and over, Chemoradiotherapy, Adjuvant, Disease-Free Survival, Female, Humans, Intraoperative Complications epidemiology, Kaplan-Meier Estimate, Middle Aged, Neoplasm Recurrence, Local, Neoplasm Staging, Pelvis, Postoperative Complications epidemiology, Proportional Hazards Models, Retrospective Studies, Survival Rate, Treatment Outcome, Uterine Cervical Neoplasms mortality, Uterine Cervical Neoplasms pathology, Uterine Cervical Neoplasms therapy, Hysterectomy methods, Laparoscopy, Lymph Node Excision methods, Uterine Cervical Neoplasms surgery
- Abstract
Objective: This study aimed to investigate in a retrospective study the effect of laparoscopic surgery, introduced in our center in 1994 as part of the standard treatment of early stage cervical cancer, on surgical and disease outcomes., Patients and Methods: A total of 169 women with cervical carcinoma stage IB1 (n = 150) or IB2 (n = 19) were included in the study. Seventy-six patients who underwent laparoscopic pelvic lymph node dissection (LPLND), followed either by open radical hysterectomy (n = 63) or, in case of positive lymph nodes, by primary chemoradiation (n = 13), were compared with an historic cohort of 93 patients who underwent a fully open, traditional Wertheim-Meigs procedure (WM). Recorded clinical characteristics of patients included age, International Federation of Gynecology and Obstetrics stage, histologic diagnosis, differentiation grade, tumor diameter, lymph node status, and adjuvant therapy. Operation time; lymph node yield; intraoperative, early, and late complications; site of recurrences; and disease-free and overall survival rates were analyzed and compared between groups., Results: Clinical characteristics did not differ between groups. Duration of total surgery time was longer in patients with LPLND followed by open radical hysterectomy compared with that in the WM group (P < 0.001). In patients with negative lymph nodes (n = 129), the number of resected nodes was higher (P = 0.002) in the LPLND (median, 26 nodes; range, 8-55 nodes) than in the WM group (median, 21 nodes; range, 7-50 nodes). In patients with positive lymph nodes (n = 40), no significant difference in the number of resected lymph nodes between the 2 groups (P = 0.904) was found. Intraoperative, early, and late complications did not differ between the 2 surgical procedures. The number of locoregional recurrences, but not of distant metastases, was significantly higher (P = 0.018) in the WM group compared with the LPLND group. No difference in disease-free or disease-specific survival was found between the LPLND and WM group, neither with nor without adjuvant or primary (chemo)radiation. A benefit in disease-free survival (P = 0.044), but not in disease-specific survival (P = 0.070), was found in the LPLND compared with the WM group in those patients who received adjuvant therapy or primary chemoradiation., Conclusions: Introduction of a laparoscopic procedure in the surgical staging and treatment of cervical cancer patients did not have a detrimental effect on surgical or disease outcome, and this can be safely applied to the treatment of early stage cervical cancer.
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- 2012
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23. Gynecologic oncology training systems in Europe: a report from the European network of young gynaecological oncologists.
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Gultekin M, Dursun P, Vranes B, Laky R, Bossart M, Grabowski JP, Piek JM, Manchanda R, Grimm C, Dallaku K, Babloyan S, Moisei A, Van Gorp T, Cadron I, Markov P, Micevska A, Halaska M, Steffensen KD, Gristsenko L, Nissi R, Lambaudie E, Tsitsishvili Z, Haidopoulos D, Tsolakidis D, Novak Z, Peiretti M, Dunenova G, Macuks R, Hetland TE, Michelsen TM, Martins FC, Achimas-Cadariu P, Ulrikh EA, Uharcek P, Malic S, Ognjenovic D, Zapardiel I, Johann S, Sukhin VS, and Manchanda R
- Subjects
- Europe, Gynecology education, Medical Oncology education
- Abstract
Objective: The objectives of the study were to highlight some of the differences in training systems and opportunities for training in gynecologic oncology across Europe and to draw attention to steps that can be taken to improve training prospects and experiences of European trainees in gynecologic oncology., Methods: The European Network of Young Gynaecological Oncologists national representatives from 34 countries were asked to review and summarize the training system in their countries of origin and fulfill a mini-questionnaire evaluating different aspects of training. We report analysis of outcomes of the mini-questionnaire and subsequent discussion at the European Network of Young Gynaecological Oncologists national representatives Asian Pacific Organization for Cancer Prevention meeting in Istanbul (April 2010)., Results: Training fellowships in gynecologic oncology are offered by 18 countries (53%). The median duration of training is 2.5 years (interquartile range, 2.0-3.0 years). Chemotherapy administration is part of training in 70.5% (24/34) countries. Most of the countries (26/34) do not have a dedicated national gynecologic-oncology journal. All trainees reported some or good access to training in advanced laparoscopic surgical techniques, whereas 41% indicated no access, and 59% some access to training opportunities in robotic surgery. European countries were grouped into 3 different categories on the basis of available training opportunities in gynecologic oncology: well-structured, moderately structured, and loosely structured training systems., Conclusions: There is a need for further harmonization and standardization of training programs and structures in gynecologic oncology across Europe. This is of particular relevance for loosely structured countries that lag behind the moderately structured and well-structured ones.
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- 2011
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24. Tubal and ovarian pathways to pelvic epithelial cancer: a pathological perspective.
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Piek JM, Verheijen RH, and van Diest PJ
- Subjects
- Fallopian Tube Neoplasms genetics, Female, Genes, BRCA1, Genes, BRCA2, Germ-Line Mutation, Humans, Neoplasms, Glandular and Epithelial genetics, Ovarian Neoplasms genetics, Pelvic Neoplasms genetics, Fallopian Tube Neoplasms pathology, Neoplasms, Glandular and Epithelial pathology, Ovarian Neoplasms pathology, Pelvic Neoplasms pathology
- Published
- 2009
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25. Ovarian carcinogenesis: an alternative hypothesis.
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Piek JM, van Diest PJ, and Verheijen RH
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- Animals, Female, Humans, Precancerous Conditions pathology, Risk Factors, Cell Transformation, Neoplastic pathology, Neoplasms, Glandular and Epithelial pathology, Ovarian Neoplasms etiology, Ovarian Neoplasms pathology, Oviducts pathology
- Abstract
Observations indicate three different tissues of origin for ovarian carcinoma. The ovarian surface epithelium, oviduct epithelium (TSE), and derivates of the Müllerian duct. This chapter discusses the TSE-related ovarian carcinogenesis (exfoliation theory). Recent evidence from prophylactic removed ovaries and Fallopian tubes shows (pre)neoplastic lesions primarily within the tubes and not in the ovaries, putting another light on the malignant potential of the tubal epithelium and possibly ovarian carcinogenesis.
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- 2008
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26. Ovarian carcinogenesis, an alternative theory.
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Piek JM, Kenemans P, Zweemer RP, van Diest PJ, and Verheijen RH
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- Female, Humans, Precancerous Conditions etiology, Carcinoma etiology, Fallopian Tubes, Ovarian Neoplasms etiology, Ovulation
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- 2007
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27. HER-2/neu and p27Kip1 in progression of Fallopian tube carcinoma: an immunohistochemical and array comparative genomic hybridization study.
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Nowee ME, Dorsman JC, Piek JM, Kosma VM, Hämäläinen K, Verheijen RH, and van Diest PJ
- Subjects
- Carcinoma metabolism, Carcinoma pathology, Cell Differentiation, Cyclin-Dependent Kinase Inhibitor p27, Disease Progression, Fallopian Tube Neoplasms metabolism, Fallopian Tube Neoplasms pathology, Female, Genomics methods, Humans, Immunohistochemistry, Intracellular Signaling Peptides and Proteins metabolism, Neoplasm Staging, Oligonucleotide Array Sequence Analysis, Receptor, ErbB-2 metabolism, Tumor Suppressor Protein p53 genetics, Carcinoma genetics, Fallopian Tube Neoplasms genetics, Intracellular Signaling Peptides and Proteins genetics, Receptor, ErbB-2 genetics, Tumor Suppressor Protein p53 metabolism
- Abstract
Aims: To determine expression of p53, HER-2/neu and p27(Kip1) in serous Fallopian tube carcinoma (FTC) in relation to stage and grade, and to investigate DNA copy number changes of HER-2 and P27KIP1 as a potential mechanism of altered expression status., Methods and Results: Immunohistochemistry was performed on 28 serous FTCs and 10 normal Fallopian tubes. p53 protein accumulated and p27(Kip1) was down-regulated significantly in early-stage FTCs compared with normal Fallopian tubes. HER-2/neu overexpression was absent in normal Fallopian tubes and in all stage I FTCs (n = 6) but present in 57% (12/21) of advanced-stage FTCs. No differences in expression between grade 2 and 3 tumours were detected. HER-2 gain/amplification was found by array comparative genomic hybridization in 23% (3/13) of analysed FTCs and all showed overexpression. HER-2/neu overexpression also occurred without DNA copy number changes in three other cases. For p27(Kip1), expression and DNA copy number were unrelated., Conclusions: p53 accumulation and p27(Kip1) down-regulation seem to be early events in Fallopian tube carcinogenesis. HER-2/neu showed overexpression, caused by gain/amplification in 50%, and may be involved in progression of FTC. These data contribute to a better understanding of the molecular carcinogenesis of FTC and to possible new therapeutic approaches.
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- 2007
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28. A case of loss of heterozygosity in the BRCA2 gene of a borderline ovarian tumor: case report and review of literature.
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Verbruggen MB, Zweemer RP, Piek JM, van Unnik GA, van Diest PJ, Gille JJ, Menko FH, Dorsman JC, and Verheijen RH
- Subjects
- DNA Mutational Analysis, Female, Humans, Intracellular Signaling Peptides and Proteins, Middle Aged, Mutation, Ovarian Neoplasms diagnosis, Proteins analysis, Genes, BRCA2, Heterozygote, Loss of Heterozygosity genetics, Ovarian Neoplasms genetics
- Abstract
Germline BRCA1 and BRCA2 mutations highly increase the risk of breast and female adnexal cancer. The role of these genes in the tumorigenesis of other malignancies is still under debate. Borderline ovarian tumors (BOT) are occasionally found in families with a strong history of breast and/or female adnexal cancer with or without proven germline mutations. We investigated whether a BOT arising in a germline BRCA2 mutation carrier could be attributed to this mutation, in which case BOT should be added to the BRCA2 related tumor spectrum. Tumor DNA of a serous borderline ovarian tumor (sBOT) of a 55-year-old female carrier of a pathogenic BRCA2 mutation (6085G>T) was analyzed for loss of heterozygosity (LOH) of BRCA2. The sBOT cells, unexpectedly, revealed loss of the mutant allele of BRCA2, while ovarian stroma cells and peripheral blood lymphocytes contained both wild-type and mutant allele of BRCA2. The finding that no loss of the wild-type BRCA2 allele was found in the tumor tissue but loss of the mutant allele was seen suggests that sBOT are not part of the BRCA2 related tumor spectrum. In the literature BOT's in germline BRCA1 and BRCA2 mutation carriers are described incidentally, while in patients with a BOT a germline BRCA1 or BRCA2 mutation is rarely found. Therefore, we conclude that borderline ovarian tumors are neither part of the BRCA1- nor the BRCA2- related tumor spectrum.
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- 2007
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29. BRCA1 and p53 protein expression in cultured ovarian surface epithelial cells derived from women with and without a BRCA1 germline mutation.
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Piek JM, Dorsman JC, Massuger LF, Ansink AC, Weegenaar J, Shvarts A, Kenemans P, and Verheijen RH
- Subjects
- Adult, BRCA1 Protein genetics, Blotting, Western, Cell Line, Tumor, Female, Germ-Line Mutation, Humans, Immunohistochemistry, Middle Aged, Ovarian Neoplasms genetics, Tumor Suppressor Protein p53 genetics, BRCA1 Protein metabolism, Ki-67 Antigen metabolism, Ovarian Neoplasms metabolism, Tumor Suppressor Protein p53 metabolism
- Abstract
Aim: Mutations in the BRCA1 and TP53 genes are early genetic events leading to (hereditary) ovarian carcinoma. The human ovarian surface epithelium (OSE) is considered the tissue of origin of at least a subset of these tumours. Therefore, OSE cell cultures derived from women harbouring BRCA1 germline mutations can be a potential model to study hereditary ovarian carcinogenesis. In fact, previous in vitro studies indicate phenotypical differences between OSE from women with and without such germline mutations. Therefore, we have assessed whether differences in the expression of BRCA1 and p53 proteins in cultured OSE cells could contribute to these observations., Study Design: Thirty-two OSE cultures derived from women harbouring a BRCA1 mutation (Predisposed OSE [POSE]) and ten cultures from women without a cancer predisposition (Non predisposed OSE [NPOSE]) were grown under standard conditions. Immunocytochemistry was performed to assess the expression of the BRCA1- and p53 proteins. Ki67 immunocytochemical expression was assessed to determine possible differences in cell cycle status between the two groups. In addition, to study whether wild type p53 was expressed, induction of p53 by cis-platinum was assessed by Western blot., Results: On the basis of Ki67 expression, three different groups were analyzed. In the group with all cultures that expressed Ki67 no significant difference was observed in BRCA1 (P = 0.19) and p53 expression (P = 0.09). In the group with moderate to high Ki67 expression no difference in BRCA1 expression (P = 0.50) was observed. However, p53 expression was significantly lower in the case group (P = 0.01). The same observation for p53 was made in the group with only high Ki67 expression (P = 0.02). Furthermore, the expression of both BRCA1 and p53 positively correlates with Ki67 expression. In POSE and NPOSE, p53 was induced by cis-platinum to a similar extent., Conclusion: Our study indicates differences in the expression of p53, but not in the expression of BRCA1 between POSE and NPOSE. In addition, our findings do suggest the absence of losses of the wild type BRCA1 and p53 genes in the studied OSE cultures. This indicates that losses in these genes cannot account for observed differences in phenotypical traits between POSE and NPOSE, but that differences in levels of p53 might contribute.
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- 2006
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30. Low prevalence of (pre) malignant lesions in the breast and high prevalence in the ovary and Fallopian tube in women at hereditary high risk of breast and ovarian cancer.
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Hermsen BB, van Diest PJ, Berkhof J, Menko FH, Gille JJ, Piek JM, Meijer S, Winters HA, Kenemans P, Mensdorff-Pouilly Sv, and Verheijen RH
- Subjects
- Adult, Aged, Breast Neoplasms prevention & control, Breast Neoplasms surgery, Fallopian Tube Neoplasms prevention & control, Fallopian Tube Neoplasms surgery, Female, Humans, Mastectomy, Middle Aged, Ovarian Neoplasms prevention & control, Ovarian Neoplasms surgery, Ovariectomy, Prevalence, Risk Factors, Breast Neoplasms genetics, Fallopian Tube Neoplasms genetics, Genes, BRCA1, Genes, BRCA2, Genetic Predisposition to Disease, Ovarian Neoplasms genetics
- Abstract
To analyse the prevalence of (pre) malignant lesions occurring in breast and adnexal tissue at prophylactic surgery in women at hereditary high risk of breast and/or ovarian cancers. Tissue was obtained from 85 women who underwent prophylactic bilateral salpingo-oophorectomy (pBSO) and from 59 women who underwent prophylactic mastectomy (pM). Control tissue samples were obtained from women undergoing breast reduction surgery (N = 99) or adnexal surgery for benign reasons (N = 72). In women with a BRCA1/2 mutation, the prevalence of a (pre) malignant adnexal lesion was 50% (95% CI 26-74) if older than 40 years and 14% (95% CI 0-58) if younger. The prevalences of (pre) malignant breast lesions in women older than 40 years, with and without a BRCA1/2 mutation, were 0% (95% CI 0-16) and 47% (95% CI 21-73), respectively. No association was found between (pre) malignant lesions in breast and adnexal tissue occurring in 28 women who underwent surgery on both organs (R = 0.155, p = 0.432), but the prevalence of lesions was significantly higher in adnexal tissue than in the breast (p = 0.023). Compared to controls, women at hereditary high risk had a higher chance of (pre) malignant lesions in the breast and an even higher chance of such lesions in the adnexal tissue. There was no indication for concomitant presence of such lesions in both organs at the time of prophylactic surgery. The high frequency of (pre) malignant lesions in the adnexal tissue stresses further the importance of pBSO from the age of 40 onwards in women at hereditary high risk.
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- 2006
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31. Intraperitoneal serous adenocarcinoma: a critical appraisal of three hypotheses on its cause.
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Piek JM, Kenemans P, and Verheijen RH
- Subjects
- Animals, Cystadenocarcinoma, Serous genetics, Cystadenocarcinoma, Serous pathology, Disease Models, Animal, Epithelium pathology, Fallopian Tube Neoplasms, Fallopian Tubes pathology, Female, Foreign Bodies, Gonadotropins, Humans, Models, Biological, Mullerian Ducts pathology, Ovarian Neoplasms genetics, Ovarian Neoplasms pathology, Ovary pathology, Ovulation, Peritoneum pathology, Transfection, Cystadenocarcinoma, Serous etiology, Ovarian Neoplasms etiology
- Abstract
Objective: Serous ovarian, Fallopian tube, and peritoneal adenocarcinomas are remarkably similar, both in their morphology, as well as in their clinical behavior. Despite extensive clinical and fundamental research, controversy still exists on the origin of serous female adnexal tumors. Difficulties in identification of site of origin at late stage the of disease at detection, when ovary, Fallopian tube, and the abdominal cavity are usually all involved, in addition to their macroscopic and microscopic resemblance, are major causes of this debate. In 3 hypotheses, 3 possible tissues of origin are proposed: the ovarian surface epithelium, the Fallopian tube epithelium, and the secondary Mullerian system., Study Design: We searched for all peer-reviewed articles and reviews that examined "serous ovarian carcinoma," "Fallopian tube carcinoma," "Mullerian system," "ovarian surface epithelium," "tubal epithelium," and "peritoneal." We included only articles that could give information on the origin of serous carcinomas. Additional articles were added by examining references of overview articles in relevant fields., Results: Discussed are the experimental data underlying these hypotheses., Conclusion: An attempt is made to integrate the 3 hypotheses into a comprehensive model of serous intraperitoneal adenocarcinogenesis. It can be concluded that the Fallopian tubes play a major role in the development of female serous cancer.
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- 2004
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32. Cultures of ovarian surface epithelium from women with and without a hereditary predisposition to develop female adnexal carcinoma.
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Piek JM, Dorsman JC, Shvarts A, Ansink AC, Massuger LF, Scholten P, van Diest PJ, Dijkstra JC, Weegenaar J, Kenemans P, and Verheijen RH
- Subjects
- Adnexa Uteri pathology, Adult, Aged, Biomarkers, Tumor biosynthesis, CA-125 Antigen biosynthesis, Calbindin 2, Cell Culture Techniques, Collagen Type IV biosynthesis, Epithelial Cells cytology, Epithelial Cells metabolism, Epithelial Cells physiology, Female, Genes, BRCA1, Genes, BRCA2, Genetic Predisposition to Disease, Humans, Keratin-7, Keratins biosynthesis, Middle Aged, Mutation, Ovary metabolism, Ovary physiology, S100 Calcium Binding Protein G biosynthesis, Uterine Neoplasms metabolism, Ovary cytology, Uterine Neoplasms genetics, Uterine Neoplasms pathology
- Abstract
Aim: Conflicting evidence exists on whether in vivo morphological characteristics can distinguish Ovarian Surface Epithelium (OSE) of ovaries obtained from women with and without a predisposition to develop female adnexal (ovarian and fallopian tube) carcinoma. This study aims to detect differences in growth potential and morphology that are maintained or specifically expressed in vitro., Study Design: Ovarian surfaces were scraped to retrieve OSE cells from 56 women at hereditary high risk for female adnexal carcinoma, of whom 33 are BRCA1 and four are BRCA2 mutation carriers (Predisposed OSE, POSE) and from 26 women without such risk (Non Predisposed OSE, NPOSE). Number of passages and total cell yield until last passage, as well as morphology was compared between both groups. To confirm morphology, the expression of epithelial, mesothelial, and fibroblast markers was assessed., Results: Both POSE and NPOSE cultures displayed similar growth potential and morphology. The expression of epithelial markers cyto-keratins 7 and 8 was similar between both groups. Only in cultures in which cells did not uniformly exhibit these markers, the percentage of cells expressing these markers was significantly lower at last passage when compared to the initial culture. In these latter cultures, cells that were morphologically indistinguishable from fibroblasts were observed. Mesothelial marker calretinin was expressed in 75% of cells of both POSE and NPOSE cultures and correlates with cyto-keratins 7 and 8 expression. CA 125 expression was equally low in POSE and NPOSE cultures (4.3%). Fibroblast markers FSM and vimentin were expressed in 100% and collagen IV was expressed in 16% of cells in all cultures., Conclusion: OSE cells derived from women with a hereditary predisposition to develop female adnexal cancer possess similar in vitro characteristics as OSE from women without this predisposition. On basis of our results, it seems advisable to study only 100% cyto-keratins 7 and 8 positive OSE cultures, since contamination of fibroblasts in some primary OSE cultures cannot be ruled out.
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- 2004
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33. BRCA1/2-related ovarian cancers are of tubal origin: a hypothesis.
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Piek JM, Verheijen RH, Kenemans P, Massuger LF, Bulten H, and van Diest PJ
- Subjects
- Fallopian Tube Neoplasms genetics, Fallopian Tube Neoplasms pathology, Female, Genetic Predisposition to Disease, Humans, Ovarian Neoplasms genetics, Ovarian Neoplasms pathology, Fallopian Tube Neoplasms complications, Genes, BRCA1, Genes, BRCA2, Ovarian Neoplasms etiology
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- 2003
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34. Genome-wide-array-based comparative genomic hybridization reveals genetic homogeneity and frequent copy number increases encompassing CCNE1 in fallopian tube carcinoma.
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Snijders AM, Nowee ME, Fridlyand J, Piek JM, Dorsman JC, Jain AN, Pinkel D, van Diest PJ, Verheijen RH, and Albertson DG
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- Carcinoma metabolism, Chromosome Mapping, Cyclin E, DNA metabolism, Fallopian Tube Neoplasms metabolism, Female, Genome, Humans, Models, Genetic, Mutation, Nucleic Acid Hybridization, Oncogene Proteins biosynthesis, Carcinoma genetics, Fallopian Tube Neoplasms genetics, Gene Expression Regulation, Neoplastic, Oligonucleotide Array Sequence Analysis methods, Oncogene Proteins genetics, Oncogenes genetics
- Abstract
Fallopian tube carcinoma (FTC) is a rare, poorly studied and aggressive cancer, associated with poor survival. Since tumorigenesis is related to the acquisition of genetic changes, we used genome-wide array comparative genomic hybridization to analyse copy number aberrations occurring in FTC in order to obtain a better understanding of FTC carcinogenesis and to identify prognostic events and targets for therapy. We used arrays of 2464 genomic clones, providing approximately 1.4 Mb resolution across the genome to map genomic DNA copy number aberrations quantitatively from 14 FTC onto the human genome sequence. All tumors showed a high frequency of copy number aberrations with recurrent gains on 3q, 6p, 7q, 8q, 12p, 17q, 19 and 20q, and losses involving chromosomes 4, 5q, 8p, 16q, 17p, 18q and X. Recurrent regions of amplification included 1p34, 8p11-q11, 8q24, 12p, 17p13, 17q12-q21, 19p13, 19q12-q13 and 19q13. Candidate, known oncogenes mapping to these amplicons included CMYC (8q24), CCNE1 (19q12-q21) and AKT2 (19q13), whereas PIK3CA and KRAS, previously suggested to be candidate driver genes for amplification, mapped outside copy number maxima on 3q and 12p, respectively. The FTC were remarkably homogeneous, with some recurrent aberrations occurring in more than 70% of samples, which suggests a stereotyped pattern of tumor evolution.
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- 2003
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35. Women harboring BRCA1/2 germline mutations are at risk for breast and female adnexal carcinoma.
- Author
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Piek JM, Dorsman JC, Zweemer RP, Verheijen RH, van Diest PJ, and Colgan TJ
- Subjects
- Female, Genetic Predisposition to Disease, Humans, Breast Neoplasms genetics, Fallopian Tube Neoplasms genetics, Genes, BRCA1, Genes, BRCA2, Mutation, Ovarian Neoplasms genetics
- Published
- 2003
- Full Text
- View/download PDF
36. Expression of differentiation and proliferation related proteins in epithelium of prophylactically removed ovaries from women with a hereditary female adnexal cancer predisposition.
- Author
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Piek JM, Verheijen RH, Menko FH, Jongsma AP, Weegenaar J, Gille JJ, Pals G, Kenemans P, and van Diest PJ
- Subjects
- Adnexal Diseases genetics, Adnexal Diseases pathology, Adult, Aged, Biomarkers, Tumor metabolism, Cell Transformation, Neoplastic genetics, Cell Transformation, Neoplastic pathology, Epithelium metabolism, Epithelium pathology, Fallopian Tubes pathology, Female, Genetic Predisposition to Disease, Humans, Immunoenzyme Techniques, Middle Aged, Ovarian Neoplasms genetics, Ovarian Neoplasms pathology, Ovariectomy, Ovary pathology, Precancerous Conditions genetics, Precancerous Conditions pathology, Adnexal Diseases metabolism, Cell Transformation, Neoplastic metabolism, Neoplasm Proteins metabolism, Ovarian Neoplasms metabolism, Ovary metabolism, Precancerous Conditions metabolism
- Abstract
Aims: To investigate the occurrence of preinvasive neoplastic lesions in ovarian surface epithelium and ovarian inclusion cyst epithelium of women with a hereditary predisposition to the development of female adnexal (ovarian and fallopian tube) carcinoma and to assess the expression of differentiation and proliferation related proteins within putative sites of origin of serous ovarian carcinoma, the ovarian surface epithelium and ovarian inclusion cyst epithelium., Methods: Twenty-one ovaries, prophylactically removed from 11 women predisposed to the development of female adnexal cancer (cases) were compared with 22 ovaries from 11 women without such predisposition (controls). Archival histological specimens were screened for hyperplastic and dysplastic epithelial lesions. In both the ovarian surface and inclusion cyst epithelia, the percentage of cells was determined that stained positively for Ki67, p21, p27, p53, cyclin A, cyclin D1, bcl-2 and the presence of HER-2/neu, oestrogen (ER-alpha) and progesterone receptors (PR)., Results: No preinvasive neoplastic lesions were detected. However, hyperplastic areas were found in three cases and in four controls (NS). ER-alpha (P = 0.013), PR (P < 0.001), bcl-2 (P = 0.008), p21 (P = 0.046) and p27 (P = 0.008) were expressed in a significantly higher percentage of cells in inclusion cyst epithelium than in ovarian surface epithelium (both groups). The latter showed higher bcl-2 expression in cases (P = 0.05) compared with controls. The inclusion cyst epithelium of cases showed higher expression of bcl-2 (P = 0.006) and PR (P = 0.039) compared with controls. Proliferation was low in both cases and controls as reflected by low Ki67 expression. Over-expression of p53, cyclin D1 and HER-2/neu was not detected., Conclusions: Premalignant changes are not a common feature of ovaries removed prophylactically from women predisposed to the development of female adnexal carcinoma. Increased expression of p21, p27, and ER-alpha is seen in inclusion cyst compared with ovarian surface epithelium of women with and without an inherited risk of adnexal carcinoma. This is most probably caused by the different intraovarian hormonal milieu of inclusion cyst epithelium. However, the increased expression of bcl-2 and PR in the inclusion cyst epithelium of patients with a hereditary predisposition may reflect early disruption of hormonal balance and growth control.
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- 2003
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37. Histopathological characteristics of BRCA1- and BRCA2-associated intraperitoneal cancer: a clinic-based study.
- Author
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Piek JM, Torrenga B, Hermsen B, Verheijen RH, Zweemer RP, Gille JJ, Kenemans P, van Diest PJ, and Menko FH
- Subjects
- Adult, Aged, Cystadenocarcinoma, Serous genetics, Cystadenocarcinoma, Serous pathology, DNA, Neoplasm, Fallopian Tube Neoplasms genetics, Female, Genetic Predisposition to Disease, Humans, Middle Aged, Neoplasms, Glandular and Epithelial genetics, Neoplasms, Glandular and Epithelial pathology, Ovarian Neoplasms genetics, Peritoneal Neoplasms genetics, Prognosis, Fallopian Tube Neoplasms pathology, Genes, BRCA1, Genes, BRCA2, Mutation, Ovarian Neoplasms pathology, Peritoneal Neoplasms pathology
- Abstract
The aim of the research was to assess possible histopathological differences between BRCA1- and BRCA2-associated malignant intraperitoneal (ovarian/fallopian tube/peritoneal) tumors and their sporadic counterparts. Dutch families harboring pathogenic BRCA1 or BRCA2 mutations were selected. Included were patients who had had malignant primary ovarian, fallopian tube or peritoneal tumors. Histopathological data was compared with data obtained from the Dutch cancer registry between 1989 and 1993 (reference group). A total of 63 with primary intraperitoneal malignant tumors were identified in 41 families. Non-epithelial malignant tumors were not observed in the study group versus 6% (n = 404) in the reference group (n = 6789, P = 0.04). These tumors were excluded from further analysis, as were ovarian adenocarcinomas not otherwise specified, since these were detected in 22% of the study group, and in 19% of the reference group (P = 0.76). Serous carcinomas were detected in 94% (47/50) of the women in the study group in contrast to 62% (3145/5088) of the reference group (P < 0.01). In the study group, mucinous and endometrioid ovarian adenocarcinomas and serous ovarian borderline tumors each comprised 2.0% of the tumors. Clear cell ovarian carcinomas were not detected. In contrast, these percentages were 16% (P < 0.01), 10% (P = 0.07), 7% (P = 0.16) and 5% (P = 0.12), respectively, in the reference group. In the study group, 6.0% of the carcinomas arose in the fallopian tube versus 1.9% in the reference group (P = 0.03). Four percent of the study group developed primary serous peritoneal carcinomas, versus six percent in the reference group (P = 0.57). Serous carcinoma is the predominant type of intraperitoneal malignancy occurring in women harboring BRCA1 or BRCA2 mutations. Non-epithelial cancer does not seem to be part of the tumor spectrum of BRCA mutation carriers. This suggests, therefore, that serous tumors may be the only subtype related to a BRCA1 or BRCA2 mutation. Furthermore, fallopian tube carcinoma occurred more often in BRCA mutation carriers than in the reference population.
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- 2003
- Full Text
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38. Molecular evidence for putative tumour suppressor genes on chromosome 13q specific to BRCA1 related ovarian and fallopian tube cancer.
- Author
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Jongsma AP, Piek JM, Zweemer RP, Verheijen RH, Klein Gebbinck JW, van Kamp GJ, Jacobs IJ, Shaw P, van Diest PJ, and Kenemans P
- Subjects
- DNA, Neoplasm genetics, Fallopian Tube Neoplasms pathology, Female, Genes, BRCA1, Humans, Microsatellite Repeats, Neoplasm Staging, Ovarian Neoplasms pathology, Polymerase Chain Reaction methods, Chromosomes, Human, Pair 13 genetics, Fallopian Tube Neoplasms genetics, Genes, Tumor Suppressor, Loss of Heterozygosity, Ovarian Neoplasms genetics
- Abstract
Background/aims: Loss of heterozygosity (LOH) on chromosome 13q has been reported to occur frequently in human ovarian cancer, and indications have been found that chromosome 13 may also play a specific role in the inherited form of ovarian cancer. The aim of this study was to define regions on chromosome 13 that may harbour additional tumour suppressor genes involved in the tumorigenesis of BRCA1 related ovarian and fallopian tube cancer., Materials/methods: DNA extracted from paraffin wax blocks of 36 BRCA1 associated ovarian and fallopian tube carcinomas was analysed by LOH polymerase chain reaction using seven highly polymorphic microsatellite markers spanning chromosome 13q., Results: High LOH frequencies were found on loci 13q11, 13q14, 13q21, 13q22-31, 13q32, and 13q32-4, suggesting the presence of putative tumour suppressor genes on the long arm of chromosome 13 that may play a role in the pathogenesis of BRCA1 related ovarian and fallopian tube cancer. LOH patterns appeared to be independent of the type of BRCA1 mutation, stage, and grade. Although in some cases there were indications for loss of larger parts of chromosome 13, in most cases losses were fairly randomly distributed over chromosome 13 with retained parts in between lost parts. Microsatellite instability was found in six cases., Conclusion: Several loci on chromosome 13q show high frequencies of LOH in BRCA1 related ovarian and fallopian tube cancer, and may therefore harbour putative tumour suppressor genes involved in the carcinogenesis of this particular type of hereditary cancer.
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- 2002
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39. Administration of low molecular weight heparin within two hours before caesarean section increases the risk of wound haematoma.
- Author
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van Wijk FH, Wolf H, Piek JM, and Büller HR
- Subjects
- Female, Humans, Logistic Models, Pregnancy, Preoperative Care adverse effects, Regression Analysis, Retrospective Studies, Risk Factors, Time Factors, Anticoagulants adverse effects, Cesarean Section adverse effects, Hematoma chemically induced, Heparin, Low-Molecular-Weight adverse effects, Postoperative Hemorrhage chemically induced
- Abstract
A retrospective analysis of the relation between time interval from prophylactic administration of low molecular weight heparin (LMWH) to delivery and the occurrence of wound haematoma was performed in all women, who had a caesarean section in 1998. After administration of LMWH within 2 hours of surgery, the percentage of women with a wound haematoma was significantly larger (12% vs 3%). Multivariate regression analysis, including other risk factors for wound haematoma, indicated administration of LMWH within 2 hours prior to delivery as the only statistically significant factor, which influenced the development of wound haematoma (odds ratio = 5.3, 95% CI = 1.2-22.8).
- Published
- 2002
- Full Text
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40. Dysplastic changes in prophylactically removed Fallopian tubes of women predisposed to developing ovarian cancer.
- Author
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Piek JM, van Diest PJ, Zweemer RP, Jansen JW, Poort-Keesom RJ, Menko FH, Gille JJ, Jongsma AP, Pals G, Kenemans P, and Verheijen RH
- Subjects
- Adult, Aged, Case-Control Studies, Cyclin A metabolism, Cyclin D1 metabolism, Female, Genes, BRCA1 physiology, Genes, bcl-2 physiology, Humans, Ki-67 Antigen metabolism, Loss of Heterozygosity, Middle Aged, Ovarian Neoplasms genetics, Polymerase Chain Reaction, Precancerous Conditions genetics, Proliferating Cell Nuclear Antigen metabolism, Receptors, Estrogen metabolism, Receptors, Progesterone metabolism, Tumor Suppressor Protein p53 metabolism, rho GTP-Binding Proteins metabolism, Fallopian Tubes pathology, Ovarian Neoplasms pathology, Precancerous Conditions pathology
- Abstract
The aim of this study was to investigate the occurrence of (pre)neoplastic lesions in overtly normal Fallopian tubes from women predisposed to developing ovarian carcinoma. The presence of (pre)neoplastic lesions was scored in histological specimens from 12 women with a genetically determined predisposition for ovarian cancer, of whom seven tested positive for a germline BRCA1 mutation. A control group included 13 women. Immunohistochemistry was used to determine the expression of p21, p27, p53, cyclin A, cyclin D1, bcl-2, Ki67, HER-2/neu, and the oestrogen and progesterone receptors. Loss of heterozygosity (LOH) analysis on the BRCA1 locus was also assessed on dysplastic tissue by PCR studies. Of the 12 women with a predisposition for ovarian cancer, six showed dysplasia, including one case of severe dysplasia. Five harboured hyperplastic lesions and in one woman no histological aberrations were found in the Fallopian tube. No hyperplastic, dysplastic or neoplastic lesions were detected in the Fallopian tubes of control subjects. In the cases studied, morphologically normal tubal epithelium contained a higher proportion of Ki67-expressing cells (p=0.005) and lower fractions of cells expressing p21 (p<0.0001) and p27 (p=0.006) than in the control group. Even higher fractions of proliferating cells were found in dysplastic areas (p=0.07) and accumulation of p53 was observed in the severely dysplastic lesion. Expression patterns of other proteins studied, including the hormone receptors, were similar in cases and controls. One subject, a germline BRCA1 mutation carrier, showed loss of the wild-type BRCA1 allele in the severely dysplastic lesion. In conclusion, the Fallopian tubes of women predisposed to developing ovarian cancer frequently harbour dysplastic changes, accompanied by changes in cell-cycle and apoptosis-related proteins, indicating an increased risk of developing tubal cancer., (Copyright 2001 John Wiley & Sons, Ltd.)
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- 2001
- Full Text
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41. Tubal ligation and risk of ovarian cancer.
- Author
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Piek JM, van Diest PJ, Zweemer RP, Kenemans P, and Verheijen RH
- Subjects
- Adenocarcinoma diagnosis, Diagnosis, Differential, Fallopian Tube Neoplasms diagnosis, Female, Genes, BRCA1 genetics, Humans, Ovarian Neoplasms diagnosis, Ovarian Neoplasms genetics, Sterilization, Tubal, Adenocarcinoma pathology, Fallopian Tube Neoplasms pathology, Ovarian Neoplasms pathology
- Published
- 2001
- Full Text
- View/download PDF
42. Cell cycle-related proteins p21 and bcl-2: markers of differentiation in the human fallopian tube.
- Author
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Piek JM, van Diest PJ, Verheijen RH, and Kenemans P
- Subjects
- Biomarkers analysis, Cell Differentiation, Cyclin-Dependent Kinase Inhibitor p21, Fallopian Tubes chemistry, Fallopian Tubes cytology, Female, Humans, Immunohistochemistry, Cyclins analysis, Proto-Oncogene Proteins c-bcl-2 analysis
- Published
- 2001
- Full Text
- View/download PDF
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