3 results on '"Samia Gonzalez"'
Search Results
2. Autocrine proliferative effects of hGH are maintained in primary cultures of human mammary carcinoma cells
- Author
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Jean Chiesa, Cécile M. Vouyovitch, Samia Gonzalez, Zhengsheng Wu, Pierre Mares, Hichem C. Mertani, Jean-Jacques Diaz, Gérard Morel, Peter E. Lobie, Tao Zhu, Catherine Ferrer, Cécile Arnould, Laboratoire de Cytogénétique, Centre Hospitalier Régional Universitaire de Nîmes ( CHRU Nîmes ), Equipe 8, Centre de Recherche en Cancérologie de Lyon ( CRCL ), Université Claude Bernard Lyon 1 ( UCBL ), Université de Lyon-Université de Lyon-Centre Léon Bérard [Lyon]-Institut National de la Santé et de la Recherche Médicale ( INSERM ) -Centre National de la Recherche Scientifique ( CNRS ) -Université Claude Bernard Lyon 1 ( UCBL ), Université de Lyon-Université de Lyon-Centre Léon Bérard [Lyon]-Institut National de la Santé et de la Recherche Médicale ( INSERM ) -Centre National de la Recherche Scientifique ( CNRS ) -Centre de génétique et de physiologie moléculaire et cellulaire ( CGPhiMC ), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique ( CNRS ) -Centre National de la Recherche Scientifique ( CNRS ), Service de gynécologie obstétrique, Hôpital Universitaire Carémeau [Nîmes], Equipe 4, Université de Lyon-Université de Lyon-Centre Léon Bérard [Lyon]-Institut National de la Santé et de la Recherche Médicale ( INSERM ) -Centre National de la Recherche Scientifique ( CNRS ), The Liggins Institute and the National Research Centre for Growth and Development, University of Auckland [Auckland], Department of Molecular Medicine and Pathology, Institut de biologie et chimie des protéines [Lyon] ( IBCP ), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique ( CNRS ), Centre Hospitalier Universitaire de Nîmes (CHU Nîmes), Centre de génétique et de physiologie moléculaire et cellulaire (CGPhiMC), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre de Recherche en Cancérologie de Lyon (UNICANCER/CRCL), Centre Léon Bérard [Lyon]-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre Léon Bérard [Lyon]-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM), Hôpital Universitaire Carémeau [Nîmes] (CHU Nîmes), Centre Hospitalier Universitaire de Nîmes (CHU Nîmes)-Centre Hospitalier Universitaire de Nîmes (CHU Nîmes), Centre de Recherche en Cancérologie de Lyon (UNICANCER/CRCL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre Léon Bérard [Lyon]-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM), Institut de biologie et chimie des protéines [Lyon] (IBCP), Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)
- Subjects
MESH: Carcinoma ,Endocrinology, Diabetes and Metabolism ,Clinical Biochemistry ,Cell ,MESH : Aged ,Stimulation ,MESH : Breast Neoplasms ,Biochemistry ,[ SDV.CAN ] Life Sciences [q-bio]/Cancer ,0302 clinical medicine ,Endocrinology ,MESH: Aged, 80 and over ,MESH : Tumor Cells, Cultured ,Tumor Cells, Cultured ,MESH: Human Growth Hormone ,MESH : Cell Proliferation ,MESH : Female ,Receptor ,Aged, 80 and over ,MESH: Aged ,0303 health sciences ,MESH: Middle Aged ,Chemistry ,Human Growth Hormone ,MESH : Carcinoma ,Middle Aged ,MESH : Adult ,3. Good health ,Autocrine Communication ,medicine.anatomical_structure ,030220 oncology & carcinogenesis ,embryonic structures ,Female ,MESH: Membrane Proteins ,MESH : Autocrine Communication ,hormones, hormone substitutes, and hormone antagonists ,Adult ,medicine.medical_specialty ,endocrine system ,Context (language use) ,Breast Neoplasms ,[SDV.CAN]Life Sciences [q-bio]/Cancer ,03 medical and health sciences ,Internal medicine ,MESH: Cell Proliferation ,medicine ,Humans ,MESH : Middle Aged ,MESH: Tumor Cells, Cultured ,MESH : Human Growth Hormone ,Autocrine signalling ,MESH : Aged, 80 and over ,030304 developmental biology ,Aged ,Cell Proliferation ,MESH: Humans ,Biochemistry (medical) ,Carcinoma ,MESH : Humans ,Antagonist ,Membrane Proteins ,MESH: Adult ,Epithelium ,In vitro ,MESH : Membrane Proteins ,MESH: Autocrine Communication ,MESH: Female ,MESH: Breast Neoplasms - Abstract
International audience; CONTEXT: Empirical evidence suggests that autocrine human GH (hGH) may possess a proliferative and oncogenic role in human mammary carcinoma. However, this concept is largely derived from studies using cultured human mammary carcinoma cell (HMCC) lines. OBJECTIVE: We investigated the expression and functionality of hGH and the hGH receptor in isolated cultures of primary HMCC. Design: Epithelial cell adhesion molecule-positive primary HMCC were isolated from surgical biopsies of patients with mammary carcinoma and cultured in vitro. Expression of hGH and hGH receptor was determined by RT-PCR, immunofluorescence microscopy, and ELISA. The proliferative response of the cultured primary HMCC to hGH stimulation or hGH inhibition with a hGH antagonist was determined. RESULTS: One hundred percent of cultured primary HMCC expressed the hGH receptor, and 52% expressed hGH at the mRNA level. hGH-positive primary HMCC produced hGH protein within the cell and secreted hGH to the media. Both hGH-negative and hGH-positive HMCC responded to hGH stimulation with large increases in cell number. hGH-positive HMCC responded to inhibition of hGH by a hGH antagonist with a decrease in cell number, whereas hGH-negative HMCC did not. CONCLUSION: Primary HMCC proliferate in response to hGH, and the proliferation of hGH-positive HMCC is inhibited by hGH antagonism. Inhibition of hGH in patients with mammary carcinoma may therefore limit tumor growth.
- Published
- 2011
3. Prognostic value of combined p53 and survivin in pT1G3 urothelial carcinoma of the bladder.
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Samia Gonzalez, Sébastien Aubert, Olivier Kerdraon, Olivier Haddad, Jean-Christophe Fantoni, Jacques Biserte, Xavier Leroy, Gonzalez, Samia, Aubert, Sébastien, Kerdraon, Olivier, Haddad, Olivier, Fantoni, Jean-Christophe, Biserte, Jacques, and Leroy, Xavier
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BLADDER cancer , *TUMORS , *SURGICAL excision , *PROGNOSIS , *P53 antioncogene - Abstract
pT1G3 bladder tumors have a high tendency to recur and progress. We evaluated the prognostic values of the depth of submucosal invasion and immunostaining with survivin and p53 in 30 pT1G3 urothelial carcinomas at the first endoscopic resection. The depth of invasion was evaluated toward the muscularis mucosa and measured using a micrometer. Survivin and p53 immunostaining were performed using an automated immunostainer. Of the patients, 19 (63%) had tumor recurrence, 11 (37%) had tumor progression, 10 (33%) had metastatic spread, and 10 (33%) died of the disease. Infiltration of deep lamina propria (pT1b) and a micrometric measure of 1.5 mm or more were associated with an increased risk of tumor local and/or metastatic progression (P = .03 and P = .02, respectively). A combined high expression of survivin (
- Published
- 2008
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