Robert Viger, PhD, is a researcher and regular member of the Centre de recherche du CHU de Québec-Laval University, and Professor in the Department of Obstetrics, Gynecology, and Reproduction at the Laval University School of Medicine. At Laval University, Professor Viger has also been Scientific Director of the Centre de recherche en reproduction, développement et santé intergénérationnelle (CRDSI), since 2014. His laboratory is presently investigating the molecular and genetic pathways involved in early gonadal differentiation, the regulation of gonad-specific gene expression, and the control of gonadal physiology. His research has been continuously funded by the Canadian Institutes of Health Research (CIHR), since 1998. From 2002 to 2012, he held the Tier 2 Canada Research Chair in Reproduction and Sex Development.
Understanding, preventing, and treating problems related to reproductive health
Reproductive dysfunction is a common medical condition. Problems range from differences in the sex determination and differentiation pathways to male and female infertility. Research in these areas is therefore essential to better understand, diagnose, treat, and hopefully prevent these problems that can be devastating for many individuals and couples. His laboratory seeks to understand the molecular and genetic mechanisms involved in human and animal reproduction in both health and disease. His goal is to provide the necessary groundwork for developing novel therapies that can eventually be used to improve reproductive health, and therefore the quality of life of those affected.
His laboratory is specifically interested in defining the transcriptional regulatory pathways that are involved in establishing mammalian sex determination (i.e., the formation of a testis or an ovary) and sex differentiation (i.e., the development of internal and external genitalia, and therefore the male or female phenotype). Over the past several years, his research has also brought new insights into our understanding of several pathologies that affect women’s health such as breast cancer, endometriosis, and polycystic ovary syndrome.
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Notch signaling represses GATA4-induced expression of genes involved in steroid biosynthesis.Journal Article
Reproduction, 150 (4), pp. 383-94, 2015, ISSN: 1470-1626.
GATA4 knockdown in MA-10 Leydig cells identifies multiple target genes in the steroidogenic pathway.Journal Article
Reproduction, 149 (3), pp. 245-57, 2015, ISSN: 1470-1626.
GATA4 autoregulates its own expression in mouse gonadal cells via its distal 1b promoter.Journal Article
Biol Reprod, 90 (2), pp. 25, 2014, ISSN: 0006-3363.
Transgenic mouse analysis of Sry expression during the pre- and peri-implantation stage.Journal Article
Dev Dyn, 241 (7), pp. 1192-204, 2012, ISSN: 1058-8388.
Functional cooperation between GATA factors and cJUN on the star promoter in MA-10 Leydig cells.Journal Article
J Androl, 33 (1), pp. 81-7, 2012, ISSN: 0196-3635.
- Centre de recherche en reproduction, développement et santé intergénérationnelle, Subvention, Institutionnel - BDR, BDR - Centres de recherche reconnus, from 1996-06-01 to 2021-04-30
- Centre hospitalier universitaire de Québec - CHU de Québec-Université Laval, Subvention, Centre hospitalier universitaire de Québec - Université Laval, Centres de recherche affiliés, from 2017-01-01 to 2099-12-31
- Regulation and mechanism of action of transcription factor GATA4 in reproduction., Subvention, Instituts de recherche en santé du Canada, Subvention de fonctionnement, from 2014-04-01 to 2019-03-31
- Réseau Québécois en Reproduction (RQR), Subvention, Fonds de recherche du Québec - Nature et technologies, Regroupements stratégiques, from 2017-04-01 to 2023-03-31
Recently finished projects
- Réseau Québécois en reproduction (RQR), Subvention, Fonds de recherche du Québec - Nature et technologies, Regroupements stratégiques, from 2011-04-01 to 2017-03-31