Search

Your search keyword '"Valmadre S"' showing total 16 results
Start Over Author "Valmadre S" Publication Type Electronic Resources
16 results on '"Valmadre S"'

1. Refined cut-off for TP53 immunohistochemistry improves prediction of TP53 mutation status in ovarian mucinous tumors: implications for outcome analyses.

Author

Friedlander M., Russell P., Links M., Grygiel J., Hill J., Byth K., Jaworski R., Harnett P., Wain G., Ward B., Papadimos D., Crandon A., Cummings M., Horwood K., Obermair A., Perrin L., Wyld D., Nicklin J., Davy M., Oehler M.K., Hall C., Dodd T., Healy T., Pittman K., Henderson D., Miller J., Pierdes J., Blomfield P., Challis D., McIntosh R., Parker A., Brown B., Rome R., Allen D., Grant P., Hyde S., Laurie R., Robbie M., Healy D., Jobling T., Manolitsas T., McNealage J., Rogers P., Susil B., Sumithran E., Simpson I., Phillips K., Rischin D., Fox S., Johnson D., Lade S., Loughrey M., O'Callaghan N., Murray W., Waring P., Billson V., Pyman J., Neesham D., Quinn M., Underhill C., Bell R., Ng L.F., Blum R., Ganju V., Hammond I., Leung Y., McCartney A., Buck M., Haviv I., Purdie D., Whiteman D., Zeps N., Kaufmann S., Meagher N.S., Ramus S.J., Campbell I., Cheasley D., Wakefield M.J., Ryland G.L., Allan P.E., Alsop K., Ananda S., Anglesio M.S., Au-Yeung G., Bohm M., Bowtell D.D.L., Brand A., Chenevix-Trench G., Christie M., Chiew Y.-E., Churchman M., DeFazio A., Dudley R., Fairweather N., Fereday S., Fox S.B., Gilks C.B., Gourley C., Hacker N.F., Hadley A.M., Hendley J., Ho G.-Y., Huntsman D.G., Hunter S.M., Jobling T.W., Kalli K.R., Kaufmann S.H., Kennedy C.J., Kobel M., Le Page C., McNally O.M., McAlpine J.N., Mileshkin L., Jan Pyman, Rahimi K., Samimi G., Sharma R., Stephens A.N., Traficante N., Antill Y.C., Scott C.L., Campbell I.G., Gorringe K.L., Kang E.Y., LePage C., da Cunha Torres M., Rowley S., Salazar C., Xing Z., Allan P., Mes-Masson A.-M., Provencher D.M., Kelemen L.E., Fasching P.A., Doherty J.A., Goodman M.T., Goode E.L., Deen S., Pharoah P.D.P., Brenton J.D., Sieh W., Mateoiu C., Sundfeldt K., Cook L.S., Le N.D., Bowtell D., Green A., Webb P., Gertig D., Moore S., Hung J., Harrap K., Sadkowsky T., Pandeya N., Malt M., Mellon A., Robertson R., Bergh T.V., Jones M., Mackenzie P., Maidens J., Nattress K., Chiew Y.E., Stenlake A., Sullivan H., Alexander B., Ashover P., Brown S., Corrish T., Green L., Jackman L., Ferguson K., Martin K., Martyn A., Ranieri B., White J., Jayde V., Mamers P., Bowes L., Galletta L., Giles D., Schmidt T., Shirley H., Ball C., Young C., Viduka S., Tran H., Bilic S., Glavinas L., Brooks J., Stuart-Harris R., Kirsten F., Rutovitz J., Clingan P., Glasgow A., Proietto A., Braye S., Otton G., Shannon J., Bonaventura T., Stewart J., Begbie S., Bell D., Baron-Hay S., Ferrier A., Gard G., Nevell D., Pavlakis N., Valmadre S., Young B., Camaris C., Crouch R., Edwards L., Hacker N., Marsden D., Robertson G., Beale P., Beith J., Carter J., Dalrymple C., Houghton R., Friedlander M., Russell P., Links M., Grygiel J., Hill J., Byth K., Jaworski R., Harnett P., Wain G., Ward B., Papadimos D., Crandon A., Cummings M., Horwood K., Obermair A., Perrin L., Wyld D., Nicklin J., Davy M., Oehler M.K., Hall C., Dodd T., Healy T., Pittman K., Henderson D., Miller J., Pierdes J., Blomfield P., Challis D., McIntosh R., Parker A., Brown B., Rome R., Allen D., Grant P., Hyde S., Laurie R., Robbie M., Healy D., Jobling T., Manolitsas T., McNealage J., Rogers P., Susil B., Sumithran E., Simpson I., Phillips K., Rischin D., Fox S., Johnson D., Lade S., Loughrey M., O'Callaghan N., Murray W., Waring P., Billson V., Pyman J., Neesham D., Quinn M., Underhill C., Bell R., Ng L.F., Blum R., Ganju V., Hammond I., Leung Y., McCartney A., Buck M., Haviv I., Purdie D., Whiteman D., Zeps N., Kaufmann S., Meagher N.S., Ramus S.J., Campbell I., Cheasley D., Wakefield M.J., Ryland G.L., Allan P.E., Alsop K., Ananda S., Anglesio M.S., Au-Yeung G., Bohm M., Bowtell D.D.L., Brand A., Chenevix-Trench G., Christie M., Chiew Y.-E., Churchman M., DeFazio A., Dudley R., Fairweather N., Fereday S., Fox S.B., Gilks C.B., Gourley C., Hacker N.F., Hadley A.M., Hendley J., Ho G.-Y., Huntsman D.G., Hunter S.M., Jobling T.W., Kalli K.R., Kaufmann S.H., Kennedy C.J., Kobel M., Le Page C., McNally O.M., McAlpine J.N., Mileshkin L., Jan Pyman, Rahimi K., Samimi G., Sharma R., Stephens A.N., Traficante N., Antill Y.C., Scott C.L., Campbell I.G., Gorringe K.L., Kang E.Y., LePage C., da Cunha Torres M., Rowley S., Salazar C., Xing Z., Allan P., Mes-Masson A.-M., Provencher D.M., Kelemen L.E., Fasching P.A., Doherty J.A., Goodman M.T., Goode E.L., Deen S., Pharoah P.D.P., Brenton J.D., Sieh W., Mateoiu C., Sundfeldt K., Cook L.S., Le N.D., Bowtell D., Green A., Webb P., Gertig D., Moore S., Hung J., Harrap K., Sadkowsky T., Pandeya N., Malt M., Mellon A., Robertson R., Bergh T.V., Jones M., Mackenzie P., Maidens J., Nattress K., Chiew Y.E., Stenlake A., Sullivan H., Alexander B., Ashover P., Brown S., Corrish T., Green L., Jackman L., Ferguson K., Martin K., Martyn A., Ranieri B., White J., Jayde V., Mamers P., Bowes L., Galletta L., Giles D., Schmidt T., Shirley H., Ball C., Young C., Viduka S., Tran H., Bilic S., Glavinas L., Brooks J., Stuart-Harris R., Kirsten F., Rutovitz J., Clingan P., Glasgow A., Proietto A., Braye S., Otton G., Shannon J., Bonaventura T., Stewart J., Begbie S., Bell D., Baron-Hay S., Ferrier A., Gard G., Nevell D., Pavlakis N., Valmadre S., Young B., Camaris C., Crouch R., Edwards L., Hacker N., Marsden D., Robertson G., Beale P., Beith J., Carter J., Dalrymple C., and Houghton R.

Abstract

TP53 mutations are implicated in the progression of mucinous borderline tumors (MBOT) to mucinous ovarian carcinomas (MOC). Optimized immunohistochemistry (IHC) for TP53 has been established as a proxy for the TP53 mutation status in other ovarian tumor types. We aimed to confirm the ability of TP53 IHC to predict TP53 mutation status in ovarian mucinous tumors and to evaluate the association of TP53 mutation status with survival among patients with MBOT and MOC. Tumor tissue from an initial cohort of 113 women with MBOT/MOC was stained with optimized IHC for TP53 using tissue microarrays (75.2%) or full sections (24.8%) and interpreted using established criteria as normal or abnormal (overexpression, complete absence, or cytoplasmic). Cases were considered concordant if abnormal IHC staining predicted deleterious TP53 mutations. Discordant tissue microarray cases were re-evaluated on full sections and interpretational criteria were refined. The initial cohort was expanded to a total of 165 MBOT and 424 MOC for the examination of the association of survival with TP53 mutation status, assessed either by TP53 IHC and/or sequencing. Initially, 82/113 (72.6%) cases were concordant using the established criteria. Refined criteria for overexpression to account for intratumoral heterogeneity and terminal differentiation improved concordance to 93.8% (106/113). In the expanded cohort, 19.4% (32/165) of MBOT showed evidence for TP53 mutation and this was associated with a higher risk of recurrence, disease-specific death, and all-cause mortality (overall survival: HR = 4.6, 95% CI 1.5-14.3, p = 0.0087). Within MOC, 61.1% (259/424) harbored a TP53 mutation, but this was not associated with survival (overall survival, p = 0.77). TP53 IHC is an accurate proxy for TP53 mutation status with refined interpretation criteria accounting for intratumoral heterogeneity and terminal differentiation in ovarian mucinous tumors. TP53 mutation status is an important biomarker to identify MB

Published
2021

2. Refined cut-off for TP53 immunohistochemistry improves prediction of TP53 mutation status in ovarian mucinous tumors: implications for outcome analyses.

Author

Friedlander M., Russell P., Links M., Grygiel J., Hill J., Byth K., Jaworski R., Harnett P., Wain G., Ward B., Papadimos D., Crandon A., Cummings M., Horwood K., Obermair A., Perrin L., Wyld D., Nicklin J., Davy M., Oehler M.K., Hall C., Dodd T., Healy T., Pittman K., Henderson D., Miller J., Pierdes J., Blomfield P., Challis D., McIntosh R., Parker A., Brown B., Rome R., Allen D., Grant P., Hyde S., Laurie R., Robbie M., Healy D., Jobling T., Manolitsas T., McNealage J., Rogers P., Susil B., Sumithran E., Simpson I., Phillips K., Rischin D., Fox S., Johnson D., Lade S., Loughrey M., O'Callaghan N., Murray W., Waring P., Billson V., Pyman J., Neesham D., Quinn M., Underhill C., Bell R., Ng L.F., Blum R., Ganju V., Hammond I., Leung Y., McCartney A., Buck M., Haviv I., Purdie D., Whiteman D., Zeps N., Kaufmann S., Meagher N.S., Ramus S.J., Campbell I., Cheasley D., Wakefield M.J., Ryland G.L., Allan P.E., Alsop K., Ananda S., Anglesio M.S., Au-Yeung G., Bohm M., Bowtell D.D.L., Brand A., Chenevix-Trench G., Christie M., Chiew Y.-E., Churchman M., DeFazio A., Dudley R., Fairweather N., Fereday S., Fox S.B., Gilks C.B., Gourley C., Hacker N.F., Hadley A.M., Hendley J., Ho G.-Y., Huntsman D.G., Hunter S.M., Jobling T.W., Kalli K.R., Kaufmann S.H., Kennedy C.J., Kobel M., Le Page C., McNally O.M., McAlpine J.N., Mileshkin L., Jan Pyman, Rahimi K., Samimi G., Sharma R., Stephens A.N., Traficante N., Antill Y.C., Scott C.L., Campbell I.G., Gorringe K.L., Kang E.Y., LePage C., da Cunha Torres M., Rowley S., Salazar C., Xing Z., Allan P., Mes-Masson A.-M., Provencher D.M., Kelemen L.E., Fasching P.A., Doherty J.A., Goodman M.T., Goode E.L., Deen S., Pharoah P.D.P., Brenton J.D., Sieh W., Mateoiu C., Sundfeldt K., Cook L.S., Le N.D., Bowtell D., Green A., Webb P., Gertig D., Moore S., Hung J., Harrap K., Sadkowsky T., Pandeya N., Malt M., Mellon A., Robertson R., Bergh T.V., Jones M., Mackenzie P., Maidens J., Nattress K., Chiew Y.E., Stenlake A., Sullivan H., Alexander B., Ashover P., Brown S., Corrish T., Green L., Jackman L., Ferguson K., Martin K., Martyn A., Ranieri B., White J., Jayde V., Mamers P., Bowes L., Galletta L., Giles D., Schmidt T., Shirley H., Ball C., Young C., Viduka S., Tran H., Bilic S., Glavinas L., Brooks J., Stuart-Harris R., Kirsten F., Rutovitz J., Clingan P., Glasgow A., Proietto A., Braye S., Otton G., Shannon J., Bonaventura T., Stewart J., Begbie S., Bell D., Baron-Hay S., Ferrier A., Gard G., Nevell D., Pavlakis N., Valmadre S., Young B., Camaris C., Crouch R., Edwards L., Hacker N., Marsden D., Robertson G., Beale P., Beith J., Carter J., Dalrymple C., Houghton R., Friedlander M., Russell P., Links M., Grygiel J., Hill J., Byth K., Jaworski R., Harnett P., Wain G., Ward B., Papadimos D., Crandon A., Cummings M., Horwood K., Obermair A., Perrin L., Wyld D., Nicklin J., Davy M., Oehler M.K., Hall C., Dodd T., Healy T., Pittman K., Henderson D., Miller J., Pierdes J., Blomfield P., Challis D., McIntosh R., Parker A., Brown B., Rome R., Allen D., Grant P., Hyde S., Laurie R., Robbie M., Healy D., Jobling T., Manolitsas T., McNealage J., Rogers P., Susil B., Sumithran E., Simpson I., Phillips K., Rischin D., Fox S., Johnson D., Lade S., Loughrey M., O'Callaghan N., Murray W., Waring P., Billson V., Pyman J., Neesham D., Quinn M., Underhill C., Bell R., Ng L.F., Blum R., Ganju V., Hammond I., Leung Y., McCartney A., Buck M., Haviv I., Purdie D., Whiteman D., Zeps N., Kaufmann S., Meagher N.S., Ramus S.J., Campbell I., Cheasley D., Wakefield M.J., Ryland G.L., Allan P.E., Alsop K., Ananda S., Anglesio M.S., Au-Yeung G., Bohm M., Bowtell D.D.L., Brand A., Chenevix-Trench G., Christie M., Chiew Y.-E., Churchman M., DeFazio A., Dudley R., Fairweather N., Fereday S., Fox S.B., Gilks C.B., Gourley C., Hacker N.F., Hadley A.M., Hendley J., Ho G.-Y., Huntsman D.G., Hunter S.M., Jobling T.W., Kalli K.R., Kaufmann S.H., Kennedy C.J., Kobel M., Le Page C., McNally O.M., McAlpine J.N., Mileshkin L., Jan Pyman, Rahimi K., Samimi G., Sharma R., Stephens A.N., Traficante N., Antill Y.C., Scott C.L., Campbell I.G., Gorringe K.L., Kang E.Y., LePage C., da Cunha Torres M., Rowley S., Salazar C., Xing Z., Allan P., Mes-Masson A.-M., Provencher D.M., Kelemen L.E., Fasching P.A., Doherty J.A., Goodman M.T., Goode E.L., Deen S., Pharoah P.D.P., Brenton J.D., Sieh W., Mateoiu C., Sundfeldt K., Cook L.S., Le N.D., Bowtell D., Green A., Webb P., Gertig D., Moore S., Hung J., Harrap K., Sadkowsky T., Pandeya N., Malt M., Mellon A., Robertson R., Bergh T.V., Jones M., Mackenzie P., Maidens J., Nattress K., Chiew Y.E., Stenlake A., Sullivan H., Alexander B., Ashover P., Brown S., Corrish T., Green L., Jackman L., Ferguson K., Martin K., Martyn A., Ranieri B., White J., Jayde V., Mamers P., Bowes L., Galletta L., Giles D., Schmidt T., Shirley H., Ball C., Young C., Viduka S., Tran H., Bilic S., Glavinas L., Brooks J., Stuart-Harris R., Kirsten F., Rutovitz J., Clingan P., Glasgow A., Proietto A., Braye S., Otton G., Shannon J., Bonaventura T., Stewart J., Begbie S., Bell D., Baron-Hay S., Ferrier A., Gard G., Nevell D., Pavlakis N., Valmadre S., Young B., Camaris C., Crouch R., Edwards L., Hacker N., Marsden D., Robertson G., Beale P., Beith J., Carter J., Dalrymple C., and Houghton R.

Abstract

TP53 mutations are implicated in the progression of mucinous borderline tumors (MBOT) to mucinous ovarian carcinomas (MOC). Optimized immunohistochemistry (IHC) for TP53 has been established as a proxy for the TP53 mutation status in other ovarian tumor types. We aimed to confirm the ability of TP53 IHC to predict TP53 mutation status in ovarian mucinous tumors and to evaluate the association of TP53 mutation status with survival among patients with MBOT and MOC. Tumor tissue from an initial cohort of 113 women with MBOT/MOC was stained with optimized IHC for TP53 using tissue microarrays (75.2%) or full sections (24.8%) and interpreted using established criteria as normal or abnormal (overexpression, complete absence, or cytoplasmic). Cases were considered concordant if abnormal IHC staining predicted deleterious TP53 mutations. Discordant tissue microarray cases were re-evaluated on full sections and interpretational criteria were refined. The initial cohort was expanded to a total of 165 MBOT and 424 MOC for the examination of the association of survival with TP53 mutation status, assessed either by TP53 IHC and/or sequencing. Initially, 82/113 (72.6%) cases were concordant using the established criteria. Refined criteria for overexpression to account for intratumoral heterogeneity and terminal differentiation improved concordance to 93.8% (106/113). In the expanded cohort, 19.4% (32/165) of MBOT showed evidence for TP53 mutation and this was associated with a higher risk of recurrence, disease-specific death, and all-cause mortality (overall survival: HR = 4.6, 95% CI 1.5-14.3, p = 0.0087). Within MOC, 61.1% (259/424) harbored a TP53 mutation, but this was not associated with survival (overall survival, p = 0.77). TP53 IHC is an accurate proxy for TP53 mutation status with refined interpretation criteria accounting for intratumoral heterogeneity and terminal differentiation in ovarian mucinous tumors. TP53 mutation status is an important biomarker to identify MB

Published
2021

3. BRAF mutations in low-grade serous ovarian cancer and response to BRAF inhibition.

Author

Jones M., Patch A.-M., Alsop K., Ball C., Young C., Schmidt T., Shirley H., Viduka S., Bilic S., Glavinas L., Brooks J., Traficante N., Stuart-Harris R., Kirsten F., Rutovitz J., Clingan P., Glasgow A., Valmadre S., Young B., Camaris C., Crouch R., Edwards L., Hacker N., Marsden D., Robertson G., Beale P., Beith J., Carter J., Dalrymple C., Houghton R., Russell P., Links M., Grygiel J., Hill J., Brand A., Byth K., Jaworski R., Sharma R., Harnett P., Wain G., Friedlander M., Ward B., Papadimos D., Crandon A., Cummings M., Horwood K., Obermair A., Perrin L., Wyld D., Nicklin J., Davy M., Oehler M.K., Hall C., Dodd T., Healy T., Pittman K., Henderson D., Miller J., Pierdes J., Blomfield P., Challis D., McIntosh R., Parker A., Brown B., Rome R., Allen D., Grant P., Hyde S., Laurie R., Robbie M., Healy D., Manolitsas T., McNealage J., Rogers P., Susil B., Sumithran E., Simpson I., Phillips K., Rischin D., Fox S., Johnson D., Lade S., Loughrey M., O'Callaghan N., Murray W., Waring P., Billson V., Pyman J., Neesham D., Quinn M., Underhill C., Ng L.F., Blum R., Ganju V., Hammond I., Leung Y., McCartney A., Buck M., Haviv I., Purdie D., Whiteman D., Zeps N., Bell R., Jobling T., Tran H., Moujaber T., Etemadmoghadam D., Kennedy C.J., Chiew Y.E., Balleine R.L., Saunders C., Wain G.V., Gao B., Hogg R., Srirangan S., Kan C., Fereday S., Pearson J.V., Waddell N., Grimmond S.M., Dobrovic A., Bowtell D.D.L., Harnett P.R., deFazio A., Bowtell D., Chenevix-Trench G., Green A., Webb P., Gertig D., Moore S., Harrap K., Sadkowsky T., Pandeya N., Hung J., Malt M., Alexander B., Ashover P., Brown S., Corrish T., Green L., Jackman L., Ferguson K., Martin K., Martyn A., Ranieri B., Mellon A., Robertson R., Vanden Bergh T., Mackenzie P., Maidens J., Nattress K., Stenlake A., Sullivan H., White J., Jayde V., Mamers P., Bowes L., Galletta L., Giles D., Hendley J., Proietto A., Braye S., Otton G., Shannon J., Bonaventura T., Stewart J., Begbie S., Bell D., Baron-Hay S., Ferrier A., Gard G., Nevell D., Pavlakis N., Jones M., Patch A.-M., Alsop K., Ball C., Young C., Schmidt T., Shirley H., Viduka S., Bilic S., Glavinas L., Brooks J., Traficante N., Stuart-Harris R., Kirsten F., Rutovitz J., Clingan P., Glasgow A., Valmadre S., Young B., Camaris C., Crouch R., Edwards L., Hacker N., Marsden D., Robertson G., Beale P., Beith J., Carter J., Dalrymple C., Houghton R., Russell P., Links M., Grygiel J., Hill J., Brand A., Byth K., Jaworski R., Sharma R., Harnett P., Wain G., Friedlander M., Ward B., Papadimos D., Crandon A., Cummings M., Horwood K., Obermair A., Perrin L., Wyld D., Nicklin J., Davy M., Oehler M.K., Hall C., Dodd T., Healy T., Pittman K., Henderson D., Miller J., Pierdes J., Blomfield P., Challis D., McIntosh R., Parker A., Brown B., Rome R., Allen D., Grant P., Hyde S., Laurie R., Robbie M., Healy D., Manolitsas T., McNealage J., Rogers P., Susil B., Sumithran E., Simpson I., Phillips K., Rischin D., Fox S., Johnson D., Lade S., Loughrey M., O'Callaghan N., Murray W., Waring P., Billson V., Pyman J., Neesham D., Quinn M., Underhill C., Ng L.F., Blum R., Ganju V., Hammond I., Leung Y., McCartney A., Buck M., Haviv I., Purdie D., Whiteman D., Zeps N., Bell R., Jobling T., Tran H., Moujaber T., Etemadmoghadam D., Kennedy C.J., Chiew Y.E., Balleine R.L., Saunders C., Wain G.V., Gao B., Hogg R., Srirangan S., Kan C., Fereday S., Pearson J.V., Waddell N., Grimmond S.M., Dobrovic A., Bowtell D.D.L., Harnett P.R., deFazio A., Bowtell D., Chenevix-Trench G., Green A., Webb P., Gertig D., Moore S., Harrap K., Sadkowsky T., Pandeya N., Hung J., Malt M., Alexander B., Ashover P., Brown S., Corrish T., Green L., Jackman L., Ferguson K., Martin K., Martyn A., Ranieri B., Mellon A., Robertson R., Vanden Bergh T., Mackenzie P., Maidens J., Nattress K., Stenlake A., Sullivan H., White J., Jayde V., Mamers P., Bowes L., Galletta L., Giles D., Hendley J., Proietto A., Braye S., Otton G., Shannon J., Bonaventura T., Stewart J., Begbie S., Bell D., Baron-Hay S., Ferrier A., Gard G., Nevell D., and Pavlakis N.

Abstract

Purpose Low-grade serous ovarian carcinoma (LGSC) responds poorly to chemotherapy and is characterized by activating mutations in the Ras sarcoma-mitogen-activated protein kinase (RAS-MAPK) pathway, including oncogenic BRAF. However, response to BRAF inhibitors is tumor-type specific. Significant improvement in survival is seen in patients with BRAF-mutant melanoma, but other cancer types, such as colorectal cancers, are generally less sensitive. We examined the frequency and characteristics of BRAF-mutated LGSC and described the response to treatment with BRAF inhibitors. Patients and Methods Mutations were assessed in LGSC (N = 65) by using targeted, exome, and whole-genome sequencing. Patient characteristics, treatment, and clinical outcome were assessed, and the median follow-up time was more than 5 years. BRAF inhibitors were trialed in two patients with a somatic BRAF V600E mutation: one patient received dabrafenib monotherapy and was monitored clinically, biochemically (cancer antigen [CA]-125 levels), and with positron emission tomography (PET) imaging. Expression of the BRAF V600E protein in this patient was assessed by immunohistochemistry. Results Among patients with LGSC, nine (13.8%) of 65 had a somatic BRAF mutation. Of the nine patients with BRAF mutation-positive LGSC, four experienced progressive disease that did not respond to conventional chemotherapy. Two of the patients experienced progression quickly and died as a result of disease progression, and two received targeted treatment. Two patients with BRAF V600E mutation received BRAF inhibitors at relapse and both achieved durable responses. Conclusion BRAF mutations are not uncommon in patients with LGSC and should be routinely tested, because BRAF inhibitors can be an effective treatment for these patients. The results highlight the need for targeted treatment in this rare tumor type, and a prospective study is needed to formally assess the response rate and clinical benefit.Copyright © 2019 Am

Published
2019

4. BRAF mutations in low-grade serous ovarian cancer and response to BRAF inhibition.

Author

Jones M., Patch A.-M., Alsop K., Ball C., Young C., Schmidt T., Shirley H., Viduka S., Bilic S., Glavinas L., Brooks J., Traficante N., Stuart-Harris R., Kirsten F., Rutovitz J., Clingan P., Glasgow A., Valmadre S., Young B., Camaris C., Crouch R., Edwards L., Hacker N., Marsden D., Robertson G., Beale P., Beith J., Carter J., Dalrymple C., Houghton R., Russell P., Links M., Grygiel J., Hill J., Brand A., Byth K., Jaworski R., Sharma R., Harnett P., Wain G., Friedlander M., Ward B., Papadimos D., Crandon A., Cummings M., Horwood K., Obermair A., Perrin L., Wyld D., Nicklin J., Davy M., Oehler M.K., Hall C., Dodd T., Healy T., Pittman K., Henderson D., Miller J., Pierdes J., Blomfield P., Challis D., McIntosh R., Parker A., Brown B., Rome R., Allen D., Grant P., Hyde S., Laurie R., Robbie M., Healy D., Manolitsas T., McNealage J., Rogers P., Susil B., Sumithran E., Simpson I., Phillips K., Rischin D., Fox S., Johnson D., Lade S., Loughrey M., O'Callaghan N., Murray W., Waring P., Billson V., Pyman J., Neesham D., Quinn M., Underhill C., Ng L.F., Blum R., Ganju V., Hammond I., Leung Y., McCartney A., Buck M., Haviv I., Purdie D., Whiteman D., Zeps N., Bell R., Jobling T., Tran H., Moujaber T., Etemadmoghadam D., Kennedy C.J., Chiew Y.E., Balleine R.L., Saunders C., Wain G.V., Gao B., Hogg R., Srirangan S., Kan C., Fereday S., Pearson J.V., Waddell N., Grimmond S.M., Dobrovic A., Bowtell D.D.L., Harnett P.R., deFazio A., Bowtell D., Chenevix-Trench G., Green A., Webb P., Gertig D., Moore S., Harrap K., Sadkowsky T., Pandeya N., Hung J., Malt M., Alexander B., Ashover P., Brown S., Corrish T., Green L., Jackman L., Ferguson K., Martin K., Martyn A., Ranieri B., Mellon A., Robertson R., Vanden Bergh T., Mackenzie P., Maidens J., Nattress K., Stenlake A., Sullivan H., White J., Jayde V., Mamers P., Bowes L., Galletta L., Giles D., Hendley J., Proietto A., Braye S., Otton G., Shannon J., Bonaventura T., Stewart J., Begbie S., Bell D., Baron-Hay S., Ferrier A., Gard G., Nevell D., Pavlakis N., Jones M., Patch A.-M., Alsop K., Ball C., Young C., Schmidt T., Shirley H., Viduka S., Bilic S., Glavinas L., Brooks J., Traficante N., Stuart-Harris R., Kirsten F., Rutovitz J., Clingan P., Glasgow A., Valmadre S., Young B., Camaris C., Crouch R., Edwards L., Hacker N., Marsden D., Robertson G., Beale P., Beith J., Carter J., Dalrymple C., Houghton R., Russell P., Links M., Grygiel J., Hill J., Brand A., Byth K., Jaworski R., Sharma R., Harnett P., Wain G., Friedlander M., Ward B., Papadimos D., Crandon A., Cummings M., Horwood K., Obermair A., Perrin L., Wyld D., Nicklin J., Davy M., Oehler M.K., Hall C., Dodd T., Healy T., Pittman K., Henderson D., Miller J., Pierdes J., Blomfield P., Challis D., McIntosh R., Parker A., Brown B., Rome R., Allen D., Grant P., Hyde S., Laurie R., Robbie M., Healy D., Manolitsas T., McNealage J., Rogers P., Susil B., Sumithran E., Simpson I., Phillips K., Rischin D., Fox S., Johnson D., Lade S., Loughrey M., O'Callaghan N., Murray W., Waring P., Billson V., Pyman J., Neesham D., Quinn M., Underhill C., Ng L.F., Blum R., Ganju V., Hammond I., Leung Y., McCartney A., Buck M., Haviv I., Purdie D., Whiteman D., Zeps N., Bell R., Jobling T., Tran H., Moujaber T., Etemadmoghadam D., Kennedy C.J., Chiew Y.E., Balleine R.L., Saunders C., Wain G.V., Gao B., Hogg R., Srirangan S., Kan C., Fereday S., Pearson J.V., Waddell N., Grimmond S.M., Dobrovic A., Bowtell D.D.L., Harnett P.R., deFazio A., Bowtell D., Chenevix-Trench G., Green A., Webb P., Gertig D., Moore S., Harrap K., Sadkowsky T., Pandeya N., Hung J., Malt M., Alexander B., Ashover P., Brown S., Corrish T., Green L., Jackman L., Ferguson K., Martin K., Martyn A., Ranieri B., Mellon A., Robertson R., Vanden Bergh T., Mackenzie P., Maidens J., Nattress K., Stenlake A., Sullivan H., White J., Jayde V., Mamers P., Bowes L., Galletta L., Giles D., Hendley J., Proietto A., Braye S., Otton G., Shannon J., Bonaventura T., Stewart J., Begbie S., Bell D., Baron-Hay S., Ferrier A., Gard G., Nevell D., and Pavlakis N.

Abstract

Purpose Low-grade serous ovarian carcinoma (LGSC) responds poorly to chemotherapy and is characterized by activating mutations in the Ras sarcoma-mitogen-activated protein kinase (RAS-MAPK) pathway, including oncogenic BRAF. However, response to BRAF inhibitors is tumor-type specific. Significant improvement in survival is seen in patients with BRAF-mutant melanoma, but other cancer types, such as colorectal cancers, are generally less sensitive. We examined the frequency and characteristics of BRAF-mutated LGSC and described the response to treatment with BRAF inhibitors. Patients and Methods Mutations were assessed in LGSC (N = 65) by using targeted, exome, and whole-genome sequencing. Patient characteristics, treatment, and clinical outcome were assessed, and the median follow-up time was more than 5 years. BRAF inhibitors were trialed in two patients with a somatic BRAF V600E mutation: one patient received dabrafenib monotherapy and was monitored clinically, biochemically (cancer antigen [CA]-125 levels), and with positron emission tomography (PET) imaging. Expression of the BRAF V600E protein in this patient was assessed by immunohistochemistry. Results Among patients with LGSC, nine (13.8%) of 65 had a somatic BRAF mutation. Of the nine patients with BRAF mutation-positive LGSC, four experienced progressive disease that did not respond to conventional chemotherapy. Two of the patients experienced progression quickly and died as a result of disease progression, and two received targeted treatment. Two patients with BRAF V600E mutation received BRAF inhibitors at relapse and both achieved durable responses. Conclusion BRAF mutations are not uncommon in patients with LGSC and should be routinely tested, because BRAF inhibitors can be an effective treatment for these patients. The results highlight the need for targeted treatment in this rare tumor type, and a prospective study is needed to formally assess the response rate and clinical benefit.Copyright © 2019 Am

Published
2019

5. Methylation of all BRCA1 copies predicts response to the PARP inhibitor rucaparib in ovarian carcinoma.

Author

Jones M., Ferguson K., Martin K., Martyn A., Ranieri B., White J., Jayde V., Mamers P., Bowes L., Giles D., Hendley J., Schmidt T., Shirley H., Ball C., Young C., Viduka S., Tran H., Bilic S., Glavinas L., Brooks J., Stuart-Harris R., Kirsten F., Rutovitz J., Brand A., Byth K., Jaworski R., Harnett P., Sharma R., Wain G., Ward B., Papadimos D., Crandon A., Cummings M., Horwood K., Obermair A., Perrin L., Wyld D., Nicklin J., Davy M., Oehler M.K., Hall C., Dodd T., Healy T., Pittman K., Henderson D., Miller J., Pierdes J., Blomfield P., Challis D., McIntosh R., Parker A., Brown B., Rome R., Allen D., Grant P., Hyde S., Laurie R., Robbie M., Healy D., Manolitsas T., McNealage J., Rogers P., Susil B., Sumithran E., Simpson I., Phillips K., Rischin D., Fox S., Johnson D., Lade S., Loughrey M., O'Callaghan N., Murray W., Waring P., Billson V., Pyman J., Neesham D., Quinn M., Underhill C., Ng L.F., Blum R., Ganju V., Hammond I., Leung Y., McCartney A., Buck M., Haviv I., Purdie D., Whiteman D., Zeps N., deFazio A., McNeish I.A., Bowtell D.D., Swisher E.M., Dobrovic A., Wakefield M.J., Scott C.L., Bell R., Jobling T., Kondrashova O., Topp M., Nesic K., Lieschke E., Ho G.-Y., Harrell M.I., Zapparoli G.V., Hadley A., Holian R., Boehm E., Heong V., Sanij E., Pearson R.B., Krais J.J., Johnson N., McNally O., Ananda S., Alsop K., Hutt K.J., Kaufmann S.H., Lin K.K., Harding T.C., Traficante N., Chenevix-Trench G., Green A., Webb P., Gertig D., Fereday S., Moore S., Hung J., Harrap K., Sadkowsky T., Pandeya N., Malt M., Mellon A., Robertson R., VandenBergh T., Mackenzie P., Maidens J., Nattress K., Chiew Y.E., Stenlake A., Sullivan H., Alexander B., Ashover P., Brown S., Corrish T., Green L., Jackman L., Galletta L., Clingan P., Glasgow A., Proietto A., Braye S., Otton G., Shannon J., Bonaventura T., Stewart J., Begbie S., Friedlander M., Bell D., Baron-Hay S., Ferrier A., Gard G., Nevell D., Pavlakis N., Valmadre S., Young B., Camaris C., Crouch R., Edwards L., Hacker N., Marsden D., Robertson G., Beale P., Beith J., Carter J., Dalrymple C., Houghton R., Russell P., Links M., Grygiel J., Hill J., Jones M., Ferguson K., Martin K., Martyn A., Ranieri B., White J., Jayde V., Mamers P., Bowes L., Giles D., Hendley J., Schmidt T., Shirley H., Ball C., Young C., Viduka S., Tran H., Bilic S., Glavinas L., Brooks J., Stuart-Harris R., Kirsten F., Rutovitz J., Brand A., Byth K., Jaworski R., Harnett P., Sharma R., Wain G., Ward B., Papadimos D., Crandon A., Cummings M., Horwood K., Obermair A., Perrin L., Wyld D., Nicklin J., Davy M., Oehler M.K., Hall C., Dodd T., Healy T., Pittman K., Henderson D., Miller J., Pierdes J., Blomfield P., Challis D., McIntosh R., Parker A., Brown B., Rome R., Allen D., Grant P., Hyde S., Laurie R., Robbie M., Healy D., Manolitsas T., McNealage J., Rogers P., Susil B., Sumithran E., Simpson I., Phillips K., Rischin D., Fox S., Johnson D., Lade S., Loughrey M., O'Callaghan N., Murray W., Waring P., Billson V., Pyman J., Neesham D., Quinn M., Underhill C., Ng L.F., Blum R., Ganju V., Hammond I., Leung Y., McCartney A., Buck M., Haviv I., Purdie D., Whiteman D., Zeps N., deFazio A., McNeish I.A., Bowtell D.D., Swisher E.M., Dobrovic A., Wakefield M.J., Scott C.L., Bell R., Jobling T., Kondrashova O., Topp M., Nesic K., Lieschke E., Ho G.-Y., Harrell M.I., Zapparoli G.V., Hadley A., Holian R., Boehm E., Heong V., Sanij E., Pearson R.B., Krais J.J., Johnson N., McNally O., Ananda S., Alsop K., Hutt K.J., Kaufmann S.H., Lin K.K., Harding T.C., Traficante N., Chenevix-Trench G., Green A., Webb P., Gertig D., Fereday S., Moore S., Hung J., Harrap K., Sadkowsky T., Pandeya N., Malt M., Mellon A., Robertson R., VandenBergh T., Mackenzie P., Maidens J., Nattress K., Chiew Y.E., Stenlake A., Sullivan H., Alexander B., Ashover P., Brown S., Corrish T., Green L., Jackman L., Galletta L., Clingan P., Glasgow A., Proietto A., Braye S., Otton G., Shannon J., Bonaventura T., Stewart J., Begbie S., Friedlander M., Bell D., Baron-Hay S., Ferrier A., Gard G., Nevell D., Pavlakis N., Valmadre S., Young B., Camaris C., Crouch R., Edwards L., Hacker N., Marsden D., Robertson G., Beale P., Beith J., Carter J., Dalrymple C., Houghton R., Russell P., Links M., Grygiel J., and Hill J.

Abstract

Accurately identifying patients with high-grade serous ovarian carcinoma (HGSOC) who respond to poly(ADP-ribose) polymerase inhibitor (PARPi) therapy is of great clinical importance. Here we show that quantitative BRCA1 methylation analysis provides new insight into PARPi response in preclinical models and ovarian cancer patients. The response of 12 HGSOC patient-derived xenografts (PDX) to the PARPi rucaparib was assessed, with variable dose-dependent responses observed in chemo-naive BRCA1/2-mutated PDX, and no responses in PDX lacking DNA repair pathway defects. Among BRCA1-methylated PDX, silencing of all BRCA1 copies predicts rucaparib response, whilst heterozygous methylation is associated with resistance. Analysis of 21 BRCA1-methylated platinum-sensitive recurrent HGSOC (ARIEL2 Part 1 trial) confirmed that homozygous or hemizygous BRCA1 methylation predicts rucaparib clinical response, and that methylation loss can occur after exposure to chemotherapy. Accordingly, quantitative BRCA1 methylation analysis in a pre-treatment biopsy could allow identification of patients most likely to benefit, and facilitate tailoring of PARPi therapy.Copyright © 2018, The Author(s).

Published
2018

6. Methylation of all BRCA1 copies predicts response to the PARP inhibitor rucaparib in ovarian carcinoma

Author

Kondrashova, O, Topp, M, Nesic, K, Lieschke, E, Ho, G-Y, Harrell, M, Zapparoli, G, Hadley, A, Holian, R, Boehm, E, Heong, V, Sanij, E, Pearson, RB, Krais, JJ, Johnson, N, McNally, O, Ananda, S, Alsop, K, Hutt, KJ, Kaufmann, SH, Lin, KK, Harding, TC, Traficante, N, deFazio, A, McNeish, LA, Bowtell, DD, Swisher, EM, Dobrovic, A, Wakefield, MJ, Scott, CL, Chenevix-Trench, G, Green, A, Webb, P, Gertig, D, Fereday, S, Moore, S, Hung, J, Harrap, K, Sadkowsky, T, Pandeya, N, Malt, M, Mellon, A, Robertson, R, Vanden Bergh, T, Jones, M, Mackenzie, P, Maidens, J, Nattress, K, Chiew, YE, Stenlake, A, Sullivan, H, Alexander, B, Ashover, P, Brown, S, Corrish, T, Green, L, Jackman, L, Ferguson, K, Martin, K, Martyn, A, Ranieri, B, White, J, Jayde, V, Mamers, P, Bowes, L, Galletta, L, Giles, D, Hendley, J, Schmidt, T, Shirley, H, Ball, C, Young, C, Viduka, S, Tran, H, Bilic, S, Glavinas, L, Brooks, J, Stuart-Harris, R, Kirsten, F, Rutovitz, J, Clingan, P, Glasgow, A, Proietto, A, Braye, S, Otton, G, Shannon, J, Bonaventura, T, Stewart, J, Begbie, S, Friedlander, M, Bell, D, Baron-Hay, S, Ferrier, A, Gard, G, Nevell, D, Pavlakis, N, Valmadre, S, Young, B, Camaris, C, Crouch, R, Edwards, L, Hacker, N, Marsden, D, Robertson, G, Beale, P, Beith, J, Carter, J, Dalrymple, C, Houghton, R, Russell, P, Links, M, Grygiel, J, Hill, J, Brand, A, Byth, K, Jaworski, R, Harnett, P, Sharma, R, Wain, G, Ward, B, Papadimos, D, Crandon, A, Cummings, M, Horwood, K, Obermair, A, Perrin, L, Wyld, D, Nicklin, J, Davy, M, Oehler, MK, Hall, C, Dodd, T, Healy, T, Pittman, K, Henderson, D, Miller, J, Pierdes, J, Blomfield, P, Challis, D, Mclntosh, R, Parker, A, Brown, B, Rome, R, Allen, D, Grant, P, Hyde, S, Laurie, R, Robbie, M, Healy, D, Jobling, T, Manolitsas, T, McNealage, J, Rogers, P, Susil, B, Sumithran, E, Simpson, I, Phillips, K, Rischin, D, Fox, S, Johnson, D, Lade, S, Loughrey, M, O'Callaghan, N, Murray, W, Waring, P, Billson, V, Pyman, J, Neesham, D, Quinn, M, Underhill, C, Bell, R, Ng, LF, Blum, R, Ganju, V, Hammond, I, Leung, Y, McCartney, A, Buck, M, Haviv, I, Purdie, D, Whiteman, D, Zeps, N, Kondrashova, O, Topp, M, Nesic, K, Lieschke, E, Ho, G-Y, Harrell, M, Zapparoli, G, Hadley, A, Holian, R, Boehm, E, Heong, V, Sanij, E, Pearson, RB, Krais, JJ, Johnson, N, McNally, O, Ananda, S, Alsop, K, Hutt, KJ, Kaufmann, SH, Lin, KK, Harding, TC, Traficante, N, deFazio, A, McNeish, LA, Bowtell, DD, Swisher, EM, Dobrovic, A, Wakefield, MJ, Scott, CL, Chenevix-Trench, G, Green, A, Webb, P, Gertig, D, Fereday, S, Moore, S, Hung, J, Harrap, K, Sadkowsky, T, Pandeya, N, Malt, M, Mellon, A, Robertson, R, Vanden Bergh, T, Jones, M, Mackenzie, P, Maidens, J, Nattress, K, Chiew, YE, Stenlake, A, Sullivan, H, Alexander, B, Ashover, P, Brown, S, Corrish, T, Green, L, Jackman, L, Ferguson, K, Martin, K, Martyn, A, Ranieri, B, White, J, Jayde, V, Mamers, P, Bowes, L, Galletta, L, Giles, D, Hendley, J, Schmidt, T, Shirley, H, Ball, C, Young, C, Viduka, S, Tran, H, Bilic, S, Glavinas, L, Brooks, J, Stuart-Harris, R, Kirsten, F, Rutovitz, J, Clingan, P, Glasgow, A, Proietto, A, Braye, S, Otton, G, Shannon, J, Bonaventura, T, Stewart, J, Begbie, S, Friedlander, M, Bell, D, Baron-Hay, S, Ferrier, A, Gard, G, Nevell, D, Pavlakis, N, Valmadre, S, Young, B, Camaris, C, Crouch, R, Edwards, L, Hacker, N, Marsden, D, Robertson, G, Beale, P, Beith, J, Carter, J, Dalrymple, C, Houghton, R, Russell, P, Links, M, Grygiel, J, Hill, J, Brand, A, Byth, K, Jaworski, R, Harnett, P, Sharma, R, Wain, G, Ward, B, Papadimos, D, Crandon, A, Cummings, M, Horwood, K, Obermair, A, Perrin, L, Wyld, D, Nicklin, J, Davy, M, Oehler, MK, Hall, C, Dodd, T, Healy, T, Pittman, K, Henderson, D, Miller, J, Pierdes, J, Blomfield, P, Challis, D, Mclntosh, R, Parker, A, Brown, B, Rome, R, Allen, D, Grant, P, Hyde, S, Laurie, R, Robbie, M, Healy, D, Jobling, T, Manolitsas, T, McNealage, J, Rogers, P, Susil, B, Sumithran, E, Simpson, I, Phillips, K, Rischin, D, Fox, S, Johnson, D, Lade, S, Loughrey, M, O'Callaghan, N, Murray, W, Waring, P, Billson, V, Pyman, J, Neesham, D, Quinn, M, Underhill, C, Bell, R, Ng, LF, Blum, R, Ganju, V, Hammond, I, Leung, Y, McCartney, A, Buck, M, Haviv, I, Purdie, D, Whiteman, D, and Zeps, N

Abstract

Accurately identifying patients with high-grade serous ovarian carcinoma (HGSOC) who respond to poly(ADP-ribose) polymerase inhibitor (PARPi) therapy is of great clinical importance. Here we show that quantitative BRCA1 methylation analysis provides new insight into PARPi response in preclinical models and ovarian cancer patients. The response of 12 HGSOC patient-derived xenografts (PDX) to the PARPi rucaparib was assessed, with variable dose-dependent responses observed in chemo-naive BRCA1/2-mutated PDX, and no responses in PDX lacking DNA repair pathway defects. Among BRCA1-methylated PDX, silencing of all BRCA1 copies predicts rucaparib response, whilst heterozygous methylation is associated with resistance. Analysis of 21 BRCA1-methylated platinum-sensitive recurrent HGSOC (ARIEL2 Part 1 trial) confirmed that homozygous or hemizygous BRCA1 methylation predicts rucaparib clinical response, and that methylation loss can occur after exposure to chemotherapy. Accordingly, quantitative BRCA1 methylation analysis in a pre-treatment biopsy could allow identification of patients most likely to benefit, and facilitate tailoring of PARPi therapy.

Published
2018

7. Combining serum microRNA and CA-125 as prognostic indicators of preoperative surgical outcome in women with high-grade serous ovarian cancer

Author

Shah, JS, Gard, GB, Yang, J, Maidens, J, Valmadre, S, Soon, PS, Marsh, DJ, Shah, JS, Gard, GB, Yang, J, Maidens, J, Valmadre, S, Soon, PS, and Marsh, DJ

Abstract

© 2017 Elsevier Inc. Objectives The most widely used approach for the clinical management of women with high-grade serous ovarian cancer (HGSOC) is surgery, followed by platinum and taxane based chemotherapy. The degree of macroscopic disease remaining at the conclusion of surgery is a key prognostic factor determining progression free and overall survival. We sought to develop a non-invasive test to assist surgeons to determine the likelihood of achieving complete surgical resection. This knowledge could be used to plan surgical approaches for optimal clinical management. Methods We profiled 170 serum microRNAs (miRNAs) using the Serum/Plasma Focus miRNA PCR panel containing locked nucleic acid (LNA) primers (Exiqon) in women with HGSOC (N = 56) and age-matched healthy volunteers (N = 30). Additionally, we measured serum CA-125 levels in the same samples. The HGSOC cohort was further classified based on the degree of macroscopic disease at the conclusion of surgery. Stepwise logistic regression was used to identify predictive markers. Results We identified a combination of miR-375 and CA-125 as the strongest discriminator of healthy versus HGSOC serum, with an area under the curve (AUC) of 0.956. The inclusion of miR-210 increased the AUC to 0.984; however, miR-210 was affected by hemolysis. The combination of miR-34a-5p and CA-125 was the strongest predictor of completeness of surgical resection with an AUC of 0.818. Conclusion A molecular test incorporating circulating miRNA to predict completeness of surgical resection for women with HGSOC has the potential to contribute to planning for optimal patient management, ultimately improving patient outcome.

Published
2018

8. Combining serum microRNA and CA-125 as prognostic indicators of preoperative surgical outcome in women with high-grade serous ovarian cancer

Author

Shah, JS, Gard, GB, Yang, J, Maidens, J, Valmadre, S, Soon, PS, Marsh, DJ, Shah, JS, Gard, GB, Yang, J, Maidens, J, Valmadre, S, Soon, PS, and Marsh, DJ

Abstract

© 2017 Elsevier Inc. Objectives The most widely used approach for the clinical management of women with high-grade serous ovarian cancer (HGSOC) is surgery, followed by platinum and taxane based chemotherapy. The degree of macroscopic disease remaining at the conclusion of surgery is a key prognostic factor determining progression free and overall survival. We sought to develop a non-invasive test to assist surgeons to determine the likelihood of achieving complete surgical resection. This knowledge could be used to plan surgical approaches for optimal clinical management. Methods We profiled 170 serum microRNAs (miRNAs) using the Serum/Plasma Focus miRNA PCR panel containing locked nucleic acid (LNA) primers (Exiqon) in women with HGSOC (N = 56) and age-matched healthy volunteers (N = 30). Additionally, we measured serum CA-125 levels in the same samples. The HGSOC cohort was further classified based on the degree of macroscopic disease at the conclusion of surgery. Stepwise logistic regression was used to identify predictive markers. Results We identified a combination of miR-375 and CA-125 as the strongest discriminator of healthy versus HGSOC serum, with an area under the curve (AUC) of 0.956. The inclusion of miR-210 increased the AUC to 0.984; however, miR-210 was affected by hemolysis. The combination of miR-34a-5p and CA-125 was the strongest predictor of completeness of surgical resection with an AUC of 0.818. Conclusion A molecular test incorporating circulating miRNA to predict completeness of surgical resection for women with HGSOC has the potential to contribute to planning for optimal patient management, ultimately improving patient outcome.

Published
2018

9. RAD51B in familial breast cancer.

Author

Antill Y., Garcia-Closas M., Michailidou K., Links M., Grygiel J., Hill J., Brand A., Byth K., Jaworski R., Harnett P., Wain G., Purdie D., Whiteman D., Ward B., Papadimos D., Crandon A., Horwood K., Obermair A., Perrin L., Wyld D., Nicklin J., Davy S.A.-M., Oehler M.K., Hall C., Dodd T., Healy T., Pittman K., Henderson D., Miller J., Pierdes J., Achan A., Blomfield P., Challis D., McIntosh R., Parker A., Brown B., Rome R., Allen D., Grant P., Hyde S., Laurie R., Robbie M., Healy D., Manolitsas T., McNealage J., Rogers P., Susil B., Sumithran E., Simpson I., Haviv I., Rischin D., Johnson D., Lade S., Loughrey M., O'Callaghan N., Murray B., Mileshkin L., Allan P., Billson V., Pyman J., Neesham D., Quinn M., Hamilton A., McNally O., Underhill C., Ng L.F., Blum R., Ganju V., Hammond I., Leung Y., McCartney A., Stewart C., Zeps N., Bell R., Harris M., Healey S., Jobling T., Jones A., Wilson J., Pelttari L.M., Khan S., Vuorela M., Kiiski J.I., Vilske S., Nevanlinna V., Ranta S., Schleutker J., Winqvist R., Kallioniemi A., Dork T., Bogdanova N.V., Figueroa J., Pharoah P.D.P., Schmidt M.K., Dunning A.M., Bolla M.K., Dennis J., Wang Q., Hopper J.L., Southey M.C., Rosenberg E.H., Fasching P.A., Beckmann M.W., Peto J., Dos-Santos-silva I., Sawyer E.J., Tomlinson I., Burwinkel B., Surowy H., Guenel P., Truong T., Bojesen S.E., Nordestgaard B.G., Benitez J., Gonzalez-Neira A., Neuhausen S.L., Anton-Culver H., Brenner H., Arndt V., Meindl A., Schmutzler R.K., Brauch H., Bruning T., Lindblom A., Margolin S., Mannermaa A., Hartikainen J.M., Chenevix-Trench G., Van Dyck L., Janssen H., Chang-Claude J., Rudolph A., Radice P., Peterlongo P., Hallberg E., Olson J.E., Giles G.G., Milne R.L., Haiman C.A., Schumacher F., Simard J., Dumont M., Kristensen V., Borresen-Dale A.-L., Zheng W., Beeghly-Fadiel A., Grip M., Andrulis I.L., Glendon G., Devilee P., Seynaeve C., Hooning M.J., Collee M., Cox A., Cross S.S., Shah M., Luben R.N., Hamann U., Torres D., Jakubowska A., Lubinski J., Couch F.J., Yannoukakos D., Orr N., Swerdlow A., Darabi H., Li J., Czene K., Hall P., Easton D.F., Mattson J., Blomqvist C., Aittomaki K., Nevanlinna H., Aghmesheh M., Amor D., Andrews L., Armitage S., Arnold L., Balleine R., Bankier A., Bastick P., Beesley J., Beilby J., Bennett B., Bennett I., Berry G., Blackburn A., Bogwitz M., Brennan M., Brown M., Buckley M., Burgess M., Burke J., Butow P., Byron K., Callen D., Campbell I., Chauhan D., Christian A., Clarke C., Colley A., Cotton D., Crook A., Cui J., Culling B., Cummings M., Dawson S.-J., DeFazio A., Delatycki M., Dickson R., Dixon J., Dobrovic A., Dudding T., Edkins T., Edwards S., Eisenbruch M., Farshid G., Fawcett S., Fellows A., Fenton G., Field M., Firgaira F., Flanagan J., Fleming J., Fong P., Forbes J., Fox S., French J., Friedlander M., Gaff C., Gardner M., Gattas M., George P., Gill G., Goldblatt J., Greening S., Grist S., Haan E., Hardie K., Hart S., Hayward N., Heiniger L., Humphrey E., Hunt C., James P., Jenkins M., Kefford R., Kidd A., Kiely B., Kirk J., Koehler J., Kollias J., Kovalenko S., Lakhani S., Leaming A., Leary J., Lim J., Lindeman G., Lipton L., Lobb L., Mann G., Marsh D., McLachlan S.A., Meiser B., Meldrum C., Mitchell G., Newman B., Nightingale S., O'Connell S., O'Loughlin I., Osborne R., Pachter N., Patterson B., Peters L., Phillips K., Price M., Purser L., Reeve T., Reeve J., Richards R., Rickard E., Robinson B., Rudzki B., Saleh M., Salisbury E., Sambrook J., Saunders C., Saunus J., Sayer R., Scott E., Scott R., Scott C., Seshadri R., Sexton A., Sharma R., Shelling A., Simpson P., Spurdle A., Suthers G., Sykes P., Taylor D., Taylor J., Thierry B., Thompson E., Thorne H., Townshend S., Trainer A., Tran L., Tucker K., Tyler J., Visvader J., Walker L., Walpole I., Ward R., Waring P., Warner B., Warren G., Williams R., Winship I., Wu K., Young M.A., Stuart-Harris R., Kirsten F., Rutovitz J., Clingan P., Glasgow A., Proietto A., Braye S., Otton G., Shannon J., Bonaventura T., Stewart J., Begbie S., Bell D., Baron-Hay S., Ferrier A., Gard G., Nevell D., Pavlakis N., Valmadre S., Young B., Camaris C., Crouch R., Edwards L., Hacker N., Marsden D., Robertson G., Beale P., Beith J., Carter J., Dalrymple C., Houghton R., Russell P., Anderson L., Antill Y., Garcia-Closas M., Michailidou K., Links M., Grygiel J., Hill J., Brand A., Byth K., Jaworski R., Harnett P., Wain G., Purdie D., Whiteman D., Ward B., Papadimos D., Crandon A., Horwood K., Obermair A., Perrin L., Wyld D., Nicklin J., Davy S.A.-M., Oehler M.K., Hall C., Dodd T., Healy T., Pittman K., Henderson D., Miller J., Pierdes J., Achan A., Blomfield P., Challis D., McIntosh R., Parker A., Brown B., Rome R., Allen D., Grant P., Hyde S., Laurie R., Robbie M., Healy D., Manolitsas T., McNealage J., Rogers P., Susil B., Sumithran E., Simpson I., Haviv I., Rischin D., Johnson D., Lade S., Loughrey M., O'Callaghan N., Murray B., Mileshkin L., Allan P., Billson V., Pyman J., Neesham D., Quinn M., Hamilton A., McNally O., Underhill C., Ng L.F., Blum R., Ganju V., Hammond I., Leung Y., McCartney A., Stewart C., Zeps N., Bell R., Harris M., Healey S., Jobling T., Jones A., Wilson J., Pelttari L.M., Khan S., Vuorela M., Kiiski J.I., Vilske S., Nevanlinna V., Ranta S., Schleutker J., Winqvist R., Kallioniemi A., Dork T., Bogdanova N.V., Figueroa J., Pharoah P.D.P., Schmidt M.K., Dunning A.M., Bolla M.K., Dennis J., Wang Q., Hopper J.L., Southey M.C., Rosenberg E.H., Fasching P.A., Beckmann M.W., Peto J., Dos-Santos-silva I., Sawyer E.J., Tomlinson I., Burwinkel B., Surowy H., Guenel P., Truong T., Bojesen S.E., Nordestgaard B.G., Benitez J., Gonzalez-Neira A., Neuhausen S.L., Anton-Culver H., Brenner H., Arndt V., Meindl A., Schmutzler R.K., Brauch H., Bruning T., Lindblom A., Margolin S., Mannermaa A., Hartikainen J.M., Chenevix-Trench G., Van Dyck L., Janssen H., Chang-Claude J., Rudolph A., Radice P., Peterlongo P., Hallberg E., Olson J.E., Giles G.G., Milne R.L., Haiman C.A., Schumacher F., Simard J., Dumont M., Kristensen V., Borresen-Dale A.-L., Zheng W., Beeghly-Fadiel A., Grip M., Andrulis I.L., Glendon G., Devilee P., Seynaeve C., Hooning M.J., Collee M., Cox A., Cross S.S., Shah M., Luben R.N., Hamann U., Torres D., Jakubowska A., Lubinski J., Couch F.J., Yannoukakos D., Orr N., Swerdlow A., Darabi H., Li J., Czene K., Hall P., Easton D.F., Mattson J., Blomqvist C., Aittomaki K., Nevanlinna H., Aghmesheh M., Amor D., Andrews L., Armitage S., Arnold L., Balleine R., Bankier A., Bastick P., Beesley J., Beilby J., Bennett B., Bennett I., Berry G., Blackburn A., Bogwitz M., Brennan M., Brown M., Buckley M., Burgess M., Burke J., Butow P., Byron K., Callen D., Campbell I., Chauhan D., Christian A., Clarke C., Colley A., Cotton D., Crook A., Cui J., Culling B., Cummings M., Dawson S.-J., DeFazio A., Delatycki M., Dickson R., Dixon J., Dobrovic A., Dudding T., Edkins T., Edwards S., Eisenbruch M., Farshid G., Fawcett S., Fellows A., Fenton G., Field M., Firgaira F., Flanagan J., Fleming J., Fong P., Forbes J., Fox S., French J., Friedlander M., Gaff C., Gardner M., Gattas M., George P., Gill G., Goldblatt J., Greening S., Grist S., Haan E., Hardie K., Hart S., Hayward N., Heiniger L., Humphrey E., Hunt C., James P., Jenkins M., Kefford R., Kidd A., Kiely B., Kirk J., Koehler J., Kollias J., Kovalenko S., Lakhani S., Leaming A., Leary J., Lim J., Lindeman G., Lipton L., Lobb L., Mann G., Marsh D., McLachlan S.A., Meiser B., Meldrum C., Mitchell G., Newman B., Nightingale S., O'Connell S., O'Loughlin I., Osborne R., Pachter N., Patterson B., Peters L., Phillips K., Price M., Purser L., Reeve T., Reeve J., Richards R., Rickard E., Robinson B., Rudzki B., Saleh M., Salisbury E., Sambrook J., Saunders C., Saunus J., Sayer R., Scott E., Scott R., Scott C., Seshadri R., Sexton A., Sharma R., Shelling A., Simpson P., Spurdle A., Suthers G., Sykes P., Taylor D., Taylor J., Thierry B., Thompson E., Thorne H., Townshend S., Trainer A., Tran L., Tucker K., Tyler J., Visvader J., Walker L., Walpole I., Ward R., Waring P., Warner B., Warren G., Williams R., Winship I., Wu K., Young M.A., Stuart-Harris R., Kirsten F., Rutovitz J., Clingan P., Glasgow A., Proietto A., Braye S., Otton G., Shannon J., Bonaventura T., Stewart J., Begbie S., Bell D., Baron-Hay S., Ferrier A., Gard G., Nevell D., Pavlakis N., Valmadre S., Young B., Camaris C., Crouch R., Edwards L., Hacker N., Marsden D., Robertson G., Beale P., Beith J., Carter J., Dalrymple C., Houghton R., Russell P., and Anderson L.

Abstract

Common variation on 14q24.1, close to RAD51B, has been associated with breast cancer: rs999737 and rs2588809 with the risk of female breast cancer and rs1314913 with the risk of male breast cancer. The aim of this study was to investigate the role of RAD51B variants in breast cancer predisposition, particularly in the context of familial breast cancer in Finland. We sequenced the coding region of RAD51B in 168 Finnish breast cancer patients from the Helsinki region for identification of possible recurrent founder mutations. In addition, we studied the known rs999737, rs2588809, and rs1314913 SNPs and RAD51B haplotypes in 44,791 breast cancer cases and 43,583 controls from 40 studies participating in the Breast Cancer Association Consortium (BCAC) that were genotyped on a custom chip (iCOGS). We identified one putatively pathogenic missense mutation c.541C>T among the Finnish cancer patients and subsequently genotyped the mutation in additional breast cancer cases (n = 5259) and population controls (n = 3586) from Finland and Belarus. No significant association with breast cancer risk was seen in the meta-analysis of the Finnish datasets or in the large BCAC dataset. The association with previously identified risk variants rs999737, rs2588809, and rs1314913 was replicated among all breast cancer cases and also among familial cases in the BCAC dataset. The most significant association was observed for the haplotype carrying the risk-alleles of all the three SNPs both among all cases (odds ratio (OR): 1.15, 95% confidence interval (CI): 1.11-1.19, P = 8.88 x 10-16) and among familial cases (OR: 1.24, 95% CI: 1.16-1.32, P = 6.19 x 10-11), compared to the haplotype with the respective protective alleles. Our results suggest that loss-of-function mutations in RAD51B are rare, but common variation at the RAD51B region is significantly associated with familial breast cancer risk.

Published
2017

10. RAD51B in familial breast cancer.

Author

Antill Y., Garcia-Closas M., Michailidou K., Links M., Grygiel J., Hill J., Brand A., Byth K., Jaworski R., Harnett P., Wain G., Purdie D., Whiteman D., Ward B., Papadimos D., Crandon A., Horwood K., Obermair A., Perrin L., Wyld D., Nicklin J., Davy S.A.-M., Oehler M.K., Hall C., Dodd T., Healy T., Pittman K., Henderson D., Miller J., Pierdes J., Achan A., Blomfield P., Challis D., McIntosh R., Parker A., Brown B., Rome R., Allen D., Grant P., Hyde S., Laurie R., Robbie M., Healy D., Manolitsas T., McNealage J., Rogers P., Susil B., Sumithran E., Simpson I., Haviv I., Rischin D., Johnson D., Lade S., Loughrey M., O'Callaghan N., Murray B., Mileshkin L., Allan P., Billson V., Pyman J., Neesham D., Quinn M., Hamilton A., McNally O., Underhill C., Ng L.F., Blum R., Ganju V., Hammond I., Leung Y., McCartney A., Stewart C., Zeps N., Bell R., Harris M., Healey S., Jobling T., Jones A., Wilson J., Pelttari L.M., Khan S., Vuorela M., Kiiski J.I., Vilske S., Nevanlinna V., Ranta S., Schleutker J., Winqvist R., Kallioniemi A., Dork T., Bogdanova N.V., Figueroa J., Pharoah P.D.P., Schmidt M.K., Dunning A.M., Bolla M.K., Dennis J., Wang Q., Hopper J.L., Southey M.C., Rosenberg E.H., Fasching P.A., Beckmann M.W., Peto J., Dos-Santos-silva I., Sawyer E.J., Tomlinson I., Burwinkel B., Surowy H., Guenel P., Truong T., Bojesen S.E., Nordestgaard B.G., Benitez J., Gonzalez-Neira A., Neuhausen S.L., Anton-Culver H., Brenner H., Arndt V., Meindl A., Schmutzler R.K., Brauch H., Bruning T., Lindblom A., Margolin S., Mannermaa A., Hartikainen J.M., Chenevix-Trench G., Van Dyck L., Janssen H., Chang-Claude J., Rudolph A., Radice P., Peterlongo P., Hallberg E., Olson J.E., Giles G.G., Milne R.L., Haiman C.A., Schumacher F., Simard J., Dumont M., Kristensen V., Borresen-Dale A.-L., Zheng W., Beeghly-Fadiel A., Grip M., Andrulis I.L., Glendon G., Devilee P., Seynaeve C., Hooning M.J., Collee M., Cox A., Cross S.S., Shah M., Luben R.N., Hamann U., Torres D., Jakubowska A., Lubinski J., Couch F.J., Yannoukakos D., Orr N., Swerdlow A., Darabi H., Li J., Czene K., Hall P., Easton D.F., Mattson J., Blomqvist C., Aittomaki K., Nevanlinna H., Aghmesheh M., Amor D., Andrews L., Armitage S., Arnold L., Balleine R., Bankier A., Bastick P., Beesley J., Beilby J., Bennett B., Bennett I., Berry G., Blackburn A., Bogwitz M., Brennan M., Brown M., Buckley M., Burgess M., Burke J., Butow P., Byron K., Callen D., Campbell I., Chauhan D., Christian A., Clarke C., Colley A., Cotton D., Crook A., Cui J., Culling B., Cummings M., Dawson S.-J., DeFazio A., Delatycki M., Dickson R., Dixon J., Dobrovic A., Dudding T., Edkins T., Edwards S., Eisenbruch M., Farshid G., Fawcett S., Fellows A., Fenton G., Field M., Firgaira F., Flanagan J., Fleming J., Fong P., Forbes J., Fox S., French J., Friedlander M., Gaff C., Gardner M., Gattas M., George P., Gill G., Goldblatt J., Greening S., Grist S., Haan E., Hardie K., Hart S., Hayward N., Heiniger L., Humphrey E., Hunt C., James P., Jenkins M., Kefford R., Kidd A., Kiely B., Kirk J., Koehler J., Kollias J., Kovalenko S., Lakhani S., Leaming A., Leary J., Lim J., Lindeman G., Lipton L., Lobb L., Mann G., Marsh D., McLachlan S.A., Meiser B., Meldrum C., Mitchell G., Newman B., Nightingale S., O'Connell S., O'Loughlin I., Osborne R., Pachter N., Patterson B., Peters L., Phillips K., Price M., Purser L., Reeve T., Reeve J., Richards R., Rickard E., Robinson B., Rudzki B., Saleh M., Salisbury E., Sambrook J., Saunders C., Saunus J., Sayer R., Scott E., Scott R., Scott C., Seshadri R., Sexton A., Sharma R., Shelling A., Simpson P., Spurdle A., Suthers G., Sykes P., Taylor D., Taylor J., Thierry B., Thompson E., Thorne H., Townshend S., Trainer A., Tran L., Tucker K., Tyler J., Visvader J., Walker L., Walpole I., Ward R., Waring P., Warner B., Warren G., Williams R., Winship I., Wu K., Young M.A., Stuart-Harris R., Kirsten F., Rutovitz J., Clingan P., Glasgow A., Proietto A., Braye S., Otton G., Shannon J., Bonaventura T., Stewart J., Begbie S., Bell D., Baron-Hay S., Ferrier A., Gard G., Nevell D., Pavlakis N., Valmadre S., Young B., Camaris C., Crouch R., Edwards L., Hacker N., Marsden D., Robertson G., Beale P., Beith J., Carter J., Dalrymple C., Houghton R., Russell P., Anderson L., Antill Y., Garcia-Closas M., Michailidou K., Links M., Grygiel J., Hill J., Brand A., Byth K., Jaworski R., Harnett P., Wain G., Purdie D., Whiteman D., Ward B., Papadimos D., Crandon A., Horwood K., Obermair A., Perrin L., Wyld D., Nicklin J., Davy S.A.-M., Oehler M.K., Hall C., Dodd T., Healy T., Pittman K., Henderson D., Miller J., Pierdes J., Achan A., Blomfield P., Challis D., McIntosh R., Parker A., Brown B., Rome R., Allen D., Grant P., Hyde S., Laurie R., Robbie M., Healy D., Manolitsas T., McNealage J., Rogers P., Susil B., Sumithran E., Simpson I., Haviv I., Rischin D., Johnson D., Lade S., Loughrey M., O'Callaghan N., Murray B., Mileshkin L., Allan P., Billson V., Pyman J., Neesham D., Quinn M., Hamilton A., McNally O., Underhill C., Ng L.F., Blum R., Ganju V., Hammond I., Leung Y., McCartney A., Stewart C., Zeps N., Bell R., Harris M., Healey S., Jobling T., Jones A., Wilson J., Pelttari L.M., Khan S., Vuorela M., Kiiski J.I., Vilske S., Nevanlinna V., Ranta S., Schleutker J., Winqvist R., Kallioniemi A., Dork T., Bogdanova N.V., Figueroa J., Pharoah P.D.P., Schmidt M.K., Dunning A.M., Bolla M.K., Dennis J., Wang Q., Hopper J.L., Southey M.C., Rosenberg E.H., Fasching P.A., Beckmann M.W., Peto J., Dos-Santos-silva I., Sawyer E.J., Tomlinson I., Burwinkel B., Surowy H., Guenel P., Truong T., Bojesen S.E., Nordestgaard B.G., Benitez J., Gonzalez-Neira A., Neuhausen S.L., Anton-Culver H., Brenner H., Arndt V., Meindl A., Schmutzler R.K., Brauch H., Bruning T., Lindblom A., Margolin S., Mannermaa A., Hartikainen J.M., Chenevix-Trench G., Van Dyck L., Janssen H., Chang-Claude J., Rudolph A., Radice P., Peterlongo P., Hallberg E., Olson J.E., Giles G.G., Milne R.L., Haiman C.A., Schumacher F., Simard J., Dumont M., Kristensen V., Borresen-Dale A.-L., Zheng W., Beeghly-Fadiel A., Grip M., Andrulis I.L., Glendon G., Devilee P., Seynaeve C., Hooning M.J., Collee M., Cox A., Cross S.S., Shah M., Luben R.N., Hamann U., Torres D., Jakubowska A., Lubinski J., Couch F.J., Yannoukakos D., Orr N., Swerdlow A., Darabi H., Li J., Czene K., Hall P., Easton D.F., Mattson J., Blomqvist C., Aittomaki K., Nevanlinna H., Aghmesheh M., Amor D., Andrews L., Armitage S., Arnold L., Balleine R., Bankier A., Bastick P., Beesley J., Beilby J., Bennett B., Bennett I., Berry G., Blackburn A., Bogwitz M., Brennan M., Brown M., Buckley M., Burgess M., Burke J., Butow P., Byron K., Callen D., Campbell I., Chauhan D., Christian A., Clarke C., Colley A., Cotton D., Crook A., Cui J., Culling B., Cummings M., Dawson S.-J., DeFazio A., Delatycki M., Dickson R., Dixon J., Dobrovic A., Dudding T., Edkins T., Edwards S., Eisenbruch M., Farshid G., Fawcett S., Fellows A., Fenton G., Field M., Firgaira F., Flanagan J., Fleming J., Fong P., Forbes J., Fox S., French J., Friedlander M., Gaff C., Gardner M., Gattas M., George P., Gill G., Goldblatt J., Greening S., Grist S., Haan E., Hardie K., Hart S., Hayward N., Heiniger L., Humphrey E., Hunt C., James P., Jenkins M., Kefford R., Kidd A., Kiely B., Kirk J., Koehler J., Kollias J., Kovalenko S., Lakhani S., Leaming A., Leary J., Lim J., Lindeman G., Lipton L., Lobb L., Mann G., Marsh D., McLachlan S.A., Meiser B., Meldrum C., Mitchell G., Newman B., Nightingale S., O'Connell S., O'Loughlin I., Osborne R., Pachter N., Patterson B., Peters L., Phillips K., Price M., Purser L., Reeve T., Reeve J., Richards R., Rickard E., Robinson B., Rudzki B., Saleh M., Salisbury E., Sambrook J., Saunders C., Saunus J., Sayer R., Scott E., Scott R., Scott C., Seshadri R., Sexton A., Sharma R., Shelling A., Simpson P., Spurdle A., Suthers G., Sykes P., Taylor D., Taylor J., Thierry B., Thompson E., Thorne H., Townshend S., Trainer A., Tran L., Tucker K., Tyler J., Visvader J., Walker L., Walpole I., Ward R., Waring P., Warner B., Warren G., Williams R., Winship I., Wu K., Young M.A., Stuart-Harris R., Kirsten F., Rutovitz J., Clingan P., Glasgow A., Proietto A., Braye S., Otton G., Shannon J., Bonaventura T., Stewart J., Begbie S., Bell D., Baron-Hay S., Ferrier A., Gard G., Nevell D., Pavlakis N., Valmadre S., Young B., Camaris C., Crouch R., Edwards L., Hacker N., Marsden D., Robertson G., Beale P., Beith J., Carter J., Dalrymple C., Houghton R., Russell P., and Anderson L.

Abstract

Common variation on 14q24.1, close to RAD51B, has been associated with breast cancer: rs999737 and rs2588809 with the risk of female breast cancer and rs1314913 with the risk of male breast cancer. The aim of this study was to investigate the role of RAD51B variants in breast cancer predisposition, particularly in the context of familial breast cancer in Finland. We sequenced the coding region of RAD51B in 168 Finnish breast cancer patients from the Helsinki region for identification of possible recurrent founder mutations. In addition, we studied the known rs999737, rs2588809, and rs1314913 SNPs and RAD51B haplotypes in 44,791 breast cancer cases and 43,583 controls from 40 studies participating in the Breast Cancer Association Consortium (BCAC) that were genotyped on a custom chip (iCOGS). We identified one putatively pathogenic missense mutation c.541C>T among the Finnish cancer patients and subsequently genotyped the mutation in additional breast cancer cases (n = 5259) and population controls (n = 3586) from Finland and Belarus. No significant association with breast cancer risk was seen in the meta-analysis of the Finnish datasets or in the large BCAC dataset. The association with previously identified risk variants rs999737, rs2588809, and rs1314913 was replicated among all breast cancer cases and also among familial cases in the BCAC dataset. The most significant association was observed for the haplotype carrying the risk-alleles of all the three SNPs both among all cases (odds ratio (OR): 1.15, 95% confidence interval (CI): 1.11-1.19, P = 8.88 x 10-16) and among familial cases (OR: 1.24, 95% CI: 1.16-1.32, P = 6.19 x 10-11), compared to the haplotype with the respective protective alleles. Our results suggest that loss-of-function mutations in RAD51B are rare, but common variation at the RAD51B region is significantly associated with familial breast cancer risk.

Published
2017

11. Lessons learnt from implementation of a Lynch syndrome screening program for patients with gynaecological malignancy.

Author

Najdawi, F, Crook, A, Maidens, J, McEvoy, C, Fellowes, A, Pickett, J, Ho, M, Nevell, D, McIlroy, K, Sheen, A, Sioson, L, Ahadi, M, Turchini, J, Clarkson, A, Hogg, R, Valmadre, S, Gard, G, Dooley, SJ, Scott, RJ, Fox, SB, Field, M, Gill, AJ, Najdawi, F, Crook, A, Maidens, J, McEvoy, C, Fellowes, A, Pickett, J, Ho, M, Nevell, D, McIlroy, K, Sheen, A, Sioson, L, Ahadi, M, Turchini, J, Clarkson, A, Hogg, R, Valmadre, S, Gard, G, Dooley, SJ, Scott, RJ, Fox, SB, Field, M, and Gill, AJ

Abstract

Despite a trend towards universal testing, best practice to screen patients presenting with gynaecological malignancy for Lynch syndrome (LS) is uncertain. We report our institutional experience of a co-ordinated gynaecological LS screening program. All patients with endometrial carcinoma or carcinosarcoma, or gynaecological endometrioid or clear cell carcinomas undergo reflex four panel immunohistochemistry (IHC) for MLH1, PMS2, MSH2 and MSH6 followed by cascade somatic hypermethylation analysis of the MLH1 promoter locus for dual MLH1/PMS2 negative tumours. On the basis of these results, genetic counselling and targeted germline mutation testing is then offered to patients considered at high risk of LS. From 1 August 2013 to 31 December 2015, 124 patients were screened (mean age 64.6 years). Thirty-six (29.0%) demonstrated abnormal MMR IHC: 26 (72.2%) showed dual loss of MLH1/PMS2, five (13.9%) dual loss of MSH2/MSH6, three (8.3%) isolated loss of MSH6, and two (5.6%) isolated loss of PMS2. Twenty-five of 26 (96.1%) patients with dual MLH1/PMS2 loss demonstrated MLH1 promoter methylation. Therefore, 11 (8.9%) patients screened were classified as high risk for LS, of whom nine (81.8%) accepted germline mutation testing. Three (2.4% of total screened) were confirmed to have LS, two with germline PMS2 and one with germline MSH2 mutation. Massive parallel sequencing of tumour tissue demonstrated somatic mutations which were concordant with the IHC results in the remainder. Interestingly, the one MLH1/PMS2 IHC negative but not hypermethylated tumour harboured only somatic MLH1 mutations, indicating that universal cascade methylation testing in MLH1/PMS2 IHC negative tumours is very low yield and could be reconsidered in a resource-poor setting. In conclusion, universal screening for LS in patients presenting with gynaecological malignancy using the algorithm described above identified LS in three of 124 (2.4%) of our population. Only three of nine (33.3%) patients cons

Published
2017

12. Comprehensive analyses of somatic TP53 mutation in tumors with variable mutant allele frequency

Author

Cole, AJ, Zhu, Y, Dwight, T, Yu, B, Dickson, KA, Gard, GB, Maidens, J, Valmadre, S, Gill, AJ, Clifton-Bligh, R, Marsh, DJ, Cole, AJ, Zhu, Y, Dwight, T, Yu, B, Dickson, KA, Gard, GB, Maidens, J, Valmadre, S, Gill, AJ, Clifton-Bligh, R, and Marsh, DJ

Abstract

© The Author(s) 2017. Somatic mutation of the tumor suppressor gene TP53 is reported in at least 50% of human malignancies. Most high-grade serous ovarian cancers (HGSC) have a mutant TP53 allele. Accurate detection of these mutants in heterogeneous tumor tissue is paramount as therapies emerge to target mutant p53. We used a Fluidigm Access Array™ System with Massively Parallel Sequencing (MPS) to analyze DNA extracted from 76 serous ovarian tumors. This dataset has been made available to researchers through the European Genome-phenome Archive (EGA; EGAS00001002200). Herein, we present analyses of this dataset using HaplotypeCaller and MuTect2 through the Broad Institute's Genome Analysis Toolkit (GATK). We anticipate that this TP53 mutation dataset will be useful to researchers developing and testing new software to accurately determine high and low frequency variant alleles in heterogeneous aneuploid tumor tissue. Furthermore, the analysis pipeline we present provides a valuable framework for determining somatic variants more broadly in tumor tissue.

Published
2017

13. Comprehensive analyses of somatic TP53 mutation in tumors with variable mutant allele frequency

Author

Cole, AJ, Zhu, Y, Dwight, T, Yu, B, Dickson, KA, Gard, GB, Maidens, J, Valmadre, S, Gill, AJ, Clifton-Bligh, R, Marsh, DJ, Cole, AJ, Zhu, Y, Dwight, T, Yu, B, Dickson, KA, Gard, GB, Maidens, J, Valmadre, S, Gill, AJ, Clifton-Bligh, R, and Marsh, DJ

Abstract

© The Author(s) 2017. Somatic mutation of the tumor suppressor gene TP53 is reported in at least 50% of human malignancies. Most high-grade serous ovarian cancers (HGSC) have a mutant TP53 allele. Accurate detection of these mutants in heterogeneous tumor tissue is paramount as therapies emerge to target mutant p53. We used a Fluidigm Access Array™ System with Massively Parallel Sequencing (MPS) to analyze DNA extracted from 76 serous ovarian tumors. This dataset has been made available to researchers through the European Genome-phenome Archive (EGA; EGAS00001002200). Herein, we present analyses of this dataset using HaplotypeCaller and MuTect2 through the Broad Institute's Genome Analysis Toolkit (GATK). We anticipate that this TP53 mutation dataset will be useful to researchers developing and testing new software to accurately determine high and low frequency variant alleles in heterogeneous aneuploid tumor tissue. Furthermore, the analysis pipeline we present provides a valuable framework for determining somatic variants more broadly in tumor tissue.

Published
2017

14. Assessing mutant p53 in primary high-grade serous ovarian cancer using immunohistochemistry and massively parallel sequencing

Author

Cole, AJ, Dwight, T, Gill, AJ, Dickson, KA, Zhu, Y, Clarkson, A, Gard, GB, Maidens, J, Valmadre, S, Clifton-Bligh, R, Marsh, DJ, Cole, AJ, Dwight, T, Gill, AJ, Dickson, KA, Zhu, Y, Clarkson, A, Gard, GB, Maidens, J, Valmadre, S, Clifton-Bligh, R, and Marsh, DJ

Abstract

The tumour suppressor p53 is mutated in cancer, including over 96% of high-grade serous ovarian cancer (HGSOC). Mutations cause loss of wild-type p53 function due to either gain of abnormal function of mutant p53 (mutp53), or absent to low mutp53. Massively parallel sequencing (MPS) enables increased accuracy of detection of somatic variants in heterogeneous tumours. We used MPS and immunohistochemistry (IHC) to characterise HGSOCs for TP53 mutation and p53 expression. TP53 mutation was identified in 94% (68/72) of HGSOCs, 62% of which were missense. Missense mutations demonstrated high p53 by IHC, as did 35% (9/26) of non-missense mutations. Low p53 was seen by IHC in 62% of HGSOC associated with non-missense mutations. Most wild-type TP53 tumours (75%, 6/8) displayed intermediate p53 levels. The overall sensitivity of detecting a TP53 mutation based on classification as 'Low', 'Intermediate' or 'High' for p53 IHC was 99%, with a specificity of 75%. We suggest p53 IHC can be used as a surrogate marker of TP53 mutation in HGSOC; however, this will result in misclassification of a proportion of TP53 wild-type and mutant tumours. Therapeutic targeting of mutp53 will require knowledge of both TP53 mutations and mutp53 expression.

Published
2016

15. Assessing mutant p53 in primary high-grade serous ovarian cancer using immunohistochemistry and massively parallel sequencing

Author

Cole, AJ, Dwight, T, Gill, AJ, Dickson, KA, Zhu, Y, Clarkson, A, Gard, GB, Maidens, J, Valmadre, S, Clifton-Bligh, R, Marsh, DJ, Cole, AJ, Dwight, T, Gill, AJ, Dickson, KA, Zhu, Y, Clarkson, A, Gard, GB, Maidens, J, Valmadre, S, Clifton-Bligh, R, and Marsh, DJ

Abstract

The tumour suppressor p53 is mutated in cancer, including over 96% of high-grade serous ovarian cancer (HGSOC). Mutations cause loss of wild-type p53 function due to either gain of abnormal function of mutant p53 (mutp53), or absent to low mutp53. Massively parallel sequencing (MPS) enables increased accuracy of detection of somatic variants in heterogeneous tumours. We used MPS and immunohistochemistry (IHC) to characterise HGSOCs for TP53 mutation and p53 expression. TP53 mutation was identified in 94% (68/72) of HGSOCs, 62% of which were missense. Missense mutations demonstrated high p53 by IHC, as did 35% (9/26) of non-missense mutations. Low p53 was seen by IHC in 62% of HGSOC associated with non-missense mutations. Most wild-type TP53 tumours (75%, 6/8) displayed intermediate p53 levels. The overall sensitivity of detecting a TP53 mutation based on classification as 'Low', 'Intermediate' or 'High' for p53 IHC was 99%, with a specificity of 75%. We suggest p53 IHC can be used as a surrogate marker of TP53 mutation in HGSOC; however, this will result in misclassification of a proportion of TP53 wild-type and mutant tumours. Therapeutic targeting of mutp53 will require knowledge of both TP53 mutations and mutp53 expression.

Published
2016

16. Paclitaxel sensitivity in relation to ABCB1 expression, efflux and single nucleotide polymorphisms in ovarian cancer

Author

Gao, B, Russell, A, Beesley, J, Chen, XQ, Healey, S, Henderson, M, Wong, M, Emmanuel, C, Galletta, L, Johnatty, SE, Bowtell, D, Haber, M, Norris, M, Harnett, P, Chenevix-Trench, G, Balleine, RL, Defazio, A, Gertig, D, Green, A, Webb, P, Hung, J, Moore, S, Traficante, N, Fereday, S, Harrap, K, Sadkowsky, T, Pandeya, N, Stuart-Harris, R, Kirsten, F, Rutovitz, J, Clingan, P, Glasgow, A, Proietto, A, Braye, S, Otton, G, Shannon, J, Bonaventura, T, Stewart, J, Begbie, S, Friedlander, M, Bell, D, Baron-Hay, S, Ferrier, A, Gard, G, Nevell, D, Pavlakis, N, Valmadre, S, Young, B, Camaris, C, Crouch, R, Edwards, L, Hacker, N, Marsden, D, Robertson, G, Beale, P, Beith, J, Carter, J, Dalrymple, C, Hamilton, A, Houghton, R, Russell, P, Links, M, Grygiel, J, Hill, J, Brand, A, Byth, K, Jaworski, R, Sharma, R, Achen, A, Wain, G, Ward, B, Papadimos, D, Crandon, A, Cummings, M, Horwood, K, Obermair, A, Perrin, L, Wyld, D, Nicklin, J, Davy, M, Oehler, MK, Hall, C, Dodd, T, Healy, T, Pittman, K, Henderson, D, Miller, J, Pierdes, J, Blomfield, P, Challis, D, McIntosh, R, Parker, A, Brown, B, Rome, R, Allen, D, Grant, P, Hyde, S, Laurie, R, Robbie, M, Healy, D, Gao, B, Russell, A, Beesley, J, Chen, XQ, Healey, S, Henderson, M, Wong, M, Emmanuel, C, Galletta, L, Johnatty, SE, Bowtell, D, Haber, M, Norris, M, Harnett, P, Chenevix-Trench, G, Balleine, RL, Defazio, A, Gertig, D, Green, A, Webb, P, Hung, J, Moore, S, Traficante, N, Fereday, S, Harrap, K, Sadkowsky, T, Pandeya, N, Stuart-Harris, R, Kirsten, F, Rutovitz, J, Clingan, P, Glasgow, A, Proietto, A, Braye, S, Otton, G, Shannon, J, Bonaventura, T, Stewart, J, Begbie, S, Friedlander, M, Bell, D, Baron-Hay, S, Ferrier, A, Gard, G, Nevell, D, Pavlakis, N, Valmadre, S, Young, B, Camaris, C, Crouch, R, Edwards, L, Hacker, N, Marsden, D, Robertson, G, Beale, P, Beith, J, Carter, J, Dalrymple, C, Hamilton, A, Houghton, R, Russell, P, Links, M, Grygiel, J, Hill, J, Brand, A, Byth, K, Jaworski, R, Sharma, R, Achen, A, Wain, G, Ward, B, Papadimos, D, Crandon, A, Cummings, M, Horwood, K, Obermair, A, Perrin, L, Wyld, D, Nicklin, J, Davy, M, Oehler, MK, Hall, C, Dodd, T, Healy, T, Pittman, K, Henderson, D, Miller, J, Pierdes, J, Blomfield, P, Challis, D, McIntosh, R, Parker, A, Brown, B, Rome, R, Allen, D, Grant, P, Hyde, S, Laurie, R, Robbie, M, and Healy, D

Abstract

ABCB1 (adenosine triphosphate-binding cassette transporter B1) mediates cellular elimination of many chemotherapeutic agents including paclitaxel, which is commonly used to treat ovarian cancer. A significant association between common single nucleotide polymorphisms (SNPs) in ABCB1 and progression-free survival has been reported in patients with ovarian cancer. Variable paclitaxel clearance due to genotype specific differences in ABCB1 activity in cancer cells and/or normal tissues may underlie the association. Using cell-based models, we evaluated the correlations between ABCB1 expression, polymorphisms, transporter activity and paclitaxel sensitivity in ovarian cancer (n = 10) and lymphoblastoid (n = 19) cell lines. Close associations between ABCB1 expression, transporter function and paclitaxel sensitivity were found in lymphoblastoid cell lines, although we could not demonstrate an association with common SNPs. In ovarian cancer cell lines, ABCB1 expression was low and the association between expression and function was lost. These results suggest that ABCB1 related survival difference in ovarian cancer patients is more likely to be due to differential whole body paclitaxel clearance mediated by normal cells rather than a direct effect on cancer cells.

Published
2014

Catalog

Books, media, physical & digital resources
See catalog results