6 results match your criteria: "Centre Hospitalier Universitaire de Québec Research Centre (CHUQ[Affiliation]"

Comparison of the roles of estrogens and androgens in breast cancer and prostate cancer.

J Cell Biochem

April 2020

Department of Molecular Medicine, Laboratory of Molecular Endocrinology and Oncology, Centre Hospitalier Universitaire de Québec Research Centre (CHUQ, CHUL), Laval University, Québec, Canada.

Article Synopsis
  • Breast cancer (BC) and prostate cancer (PC) are prevalent among women and men in Western countries, with death risk rates at 14% and 9%, respectively.
  • Hormonal imbalances, specifically abnormal levels of estrogen and androgens, play a crucial role in the development of both cancers, with estrogen promoting BC and influencing androgen production in PC.
  • The interaction of androgens with their receptors can have complex effects on BC types and contribute to both primary and advanced forms of PC, highlighting the need for a deeper understanding of these mechanisms to enhance treatment options.
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Transcriptome of 17β-hydroxysteroid dehydrogenase type 2 plays both hormone-dependent and hormone-independent roles in MCF-7 breast cancer cells.

J Steroid Biochem Mol Biol

December 2019

Laboratory of Molecular Endocrinology and Oncology, Centre Hospitalier Universitaire de Québec Research Centre (CHUQ, CHUL) and Department of Molecular Medicine, Québec G1V 4G2, Canada. Electronic address:

Breast cancer is a major cause of cancer-related death for women in western countries. 17β-Hydroxysteroid dehydrogenases (17β-HSDs) play important roles in the last step of sex-hormone activation and the first step of sex-hormone inactivation. 17β-HSD2 is responsible for oxidizing the sex hormones.

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Inhibition of 17beta-hydroxysteroid dehydrogenase type 7 modulates breast cancer protein profile and enhances apoptosis by down-regulating GRP78.

J Steroid Biochem Mol Biol

September 2017

Laboratory of Molecular Endocrinology and Oncology, Centre Hospitalier Universitaire de Québec Research Centre (CHUQ, CHUL), and Faculty of Medicine, Laval University, Quebec City, Quebec, G1 V 4G2, Canada. Electronic address:

17beta-hydroxysteroid dehydrogenase type 7 (17β-HSD7) promotes breast cancer cell growth via dual-catalytic activity by modulating estradiol and DHT. Here, we clarified the expression pattern of 17β-HSD7 in postmenopausal luminal A type breast cancer with The Cancer Genome Atlas (TCGA) cohort. The impact of 17β-HSD7 inhibition on the proteome of MCF-7 cells was investigated and on cell apoptosis was revealed.

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17beta-hydroxysteroid dehydrogenase type 5 is negatively correlated to apoptosis inhibitor GRP78 and tumor-secreted protein PGK1, and modulates breast cancer cell viability and proliferation.

J Steroid Biochem Mol Biol

July 2017

Laboratory of Molecular Endocrinology and Oncology, Centre Hospitalier Universitaire de Québec Research Centre (CHUQ, CHUL) and Department of Molecular Medicine, Laval University, 2705 Boulevard Laurier, Quebec City, Québec G1V 4G2, Canada. Electronic address:

17beta-hydroxysteroid dehydrogenase type 5 (17β-HSD5) is an important enzyme associated with sex steroid metabolism in hormone-dependent cancer. However, reports on its expression and its prognostic value in breast cancer are inconsistent. Here, we demonstrate the impact of 17β-HSD5 expression modulation on the proteome of estrogen receptor-positive (ER+) breast cancer cells.

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Genomic data on breast cancer transcript profile modulation by 17beta-hydroxysteroid dehydrogenase type 1 and 17-beta-estradiol.

Data Brief

December 2016

Laboratory of Molecular Endocrinology and Oncology, Centre Hospitalier Universitaire de Québec Research Centre (CHUQ, CHUL) and Department of Molecular Medicine, Laval University, 2705 boulevard Laurier, Québec G1V 4G2, Canada.

The data presented here are related to the research article entitled "Estradiol-independent modulation of breast cancer transcript profile by 17beta-hydroxysteroid dehydrogenase type 1" (J.A. Aka, E.

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Estradiol-independent modulation of breast cancer transcript profile by 17beta-hydroxysteroid dehydrogenase type 1.

Mol Cell Endocrinol

January 2017

Laboratory of Molecular Endocrinology and Oncology, Centre Hospitalier Universitaire de Québec Research Centre (CHUQ, CHUL) and Department of Molecular Medicine, Laval University, 2705 Boulevard Laurier, Québec, G1V 4G2, Canada. Electronic address:

17beta-hydroxysteroid dehydrogenase type 1 (17β-HSD1) is a steroidal enzyme which, in breast cancer cells, mainly synthesizes 17-beta-estradiol (E2), an estrogenic hormone that stimulates breast cancer cell growth. We previously showed that the enzyme increased breast cancer cell proliferation via a dual effect on E2 and 5α-dihydrotestosterone (DHT) levels and impacted gene expression and protein profile of breast cancer cells cultured in E2-contained medium. Here, we used RNA interference technique combined with microarray analyses to investigate the effect of 17β-HSD1 expression on breast cancer cell transcript profile in steroid-deprived condition.

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