Research Topics
Genomes and Genes
| F LabrieSummaryCountry: Canada Publications
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Publications
Expression and localization of estrogenic type 12 17beta-hydroxysteroid dehydrogenase in the cynomolgus monkeyHong Liu
Oncology and Molecular Endocrinology Laboratory, Laval University Hospital Research Center CRCHUL and Laval University, Quebec, GlV 4G2, Canada
BMC Biochem 8:2. 2007....
Activity and safety of the antiestrogen EM-800, the orally active precursor of acolbifene, in tamoxifen-resistant breast cancerFernand Labrie
Oncology and Molecular Endocrinology Research Center, Laval University Medical Center, 2705 Laurier Blvd, T 3 67, Quebec City, Quebec, G1V 4G2, Canada
J Clin Oncol 22:864-71. 2004..To determine the efficacy and safety of EM-800 (SCH-57050), the precursor of acolbifene, a new, highly potent, orally active, pure antiestrogen in the mammary gland and endometrium, for the treatment of tamoxifen-resistant breast cancer...
Dehydroepiandrosterone, androgens and the mammary glandFernand Labrie
Laboratory of Molecular Endocrinology and Oncology, Laval University Hospital Research Center CRCHUL and Laval University, Quebec City, Quebec, Canada
Gynecol Endocrinol 22:118-30. 2006....
[Keyrole of endocrinology in the victory against prostate cancer]Fernand Labrie
Centre de Recherche du Centre Hospitalier de l Universite Laval, 2705 Boulevard Laurier, Quebec, Quebec, G1V 4G2, Canada
Bull Cancer 93:949-58. 2006..Using this strategy, based upon today's available diagnostic and therapeutic approaches, death from prostate cancer can be an exception, confirming that victory against prostate cancer is achieved...
Intracrinology and the skinF Labrie
Oncology and Molecular Endocrinology Research Center, Laval University Medical Center CHUL, Quebec City, Canada
Horm Res 54:218-29. 2000....
Endocrinology and the prostate. PrefaceFernand Labrie
Laboratory of Molecular Endocrinology and Oncology, Laval University Hospital Research Center, Laval University, , Canada
Best Pract Res Clin Endocrinol Metab 22:vii-ix. 2008
Metabolism of DHEA in postmenopausal women following percutaneous administrationFernand Labrie
Laboratory of Molecular Endocrinology and Oncology, Laval University Hospital Research Center CRCHUL and Laval University, Quebec City, Canada
J Steroid Biochem Mol Biol 103:178-88. 2007....
DHEA and its transformation into androgens and estrogens in peripheral target tissues: intracrinologyF Labrie
Oncology and Molecular Endocrinology Research Center, Laval University Medical Center CHUL, Quebec, G1V 4G2, Canada
Front Neuroendocrinol 22:185-212. 2001..Such treatment, called combined androgen blockade, has led to the first demonstration of a prolongation of life in prostate cancer...
Multiple intracrine hormonal targets in the prostate: opportunities and challengesFernand Labrie
Oncology and Molecular Endocrinology Research Center, Laval University Medical Center and Laval University, , Canada
BJU Int 100:48-51. 2007
Role of 17 beta-hydroxysteroid dehydrogenases in sex steroid formation in peripheral intracrine tissuesF Labrie
Oncology and Molecular Endocrinology Research Center, Laval University Hospital CHUL and Laval University, 2705, Laurier Boulevard, Quebec, Canada G1V 4G2
Trends Endocrinol Metab 11:421-7. 2000..To date, seven human 17 beta-HSDs have been cloned, sequenced and characterized. The 17 beta-HSDs provide each cell with the means of precisely controlling the intracellular concentration of each sex steroid according to local needs...
Drug insight: breast cancer prevention and tissue-targeted hormone replacement therapyFernand Labrie
Molecular Endocrinology and Oncology Research Center, Laval University Hospital Research Center CRCHUL, Quebec City, Quebec, Canada
Nat Clin Pract Endocrinol Metab 3:584-93. 2007....
Evaluation of prostatic specific antigen and digital rectal examination as screening tests for prostate cancerB Candas
Prostate Cancer Clinical Research Unit, Department of Medicine and Laboratory of Molecular Endocrinology, Laval University Medical Center CHUL and Laval University, Quebec, Canada
Prostate 45:19-35. 2000..The 11,811 first visits and 46,751 annual follow-up visits performed since 1988 were analyzed in order to assess the efficacy of serum prostatic specific antigen (PSA) and digital rectal examination (DRE) for diagnosis of prostate cancer...
Intracrinology: role of the family of 17 beta-hydroxysteroid dehydrogenases in human physiology and diseaseF Labrie
Oncology and Molecular Endocrinology Research Center, Laval University Hospital CHUL and Laval University, Quebec, Canada G1V 4G2
J Mol Endocrinol 25:1-16. 2000..To date, seven human 17 beta-HSDs have been cloned, sequenced and characterized. The 17 beta-HSDs provide each cell with the means of precisely controlling the intracellular concentration of each sex steroid according to local needs...
EM-652 (SCH57068), a pure SERM having complete antiestrogenic activity in the mammary gland and endometriumF Labrie
Oncology and Molecular Endocrinology Research Center, Laval University Medical Center CHUL, 2705 Laurier Boulevard, Que, G1V 4G2, Quebec City, Canada
J Steroid Biochem Mol Biol 79:213-25. 2001..The above-summarized preclinical and clinical data clearly suggest the interest of studying this compounds in the neoadjuvant and adjuvant settings and, most importantly, for the prevention of breast and uterine cancer...
Dehydroepiandrosterone (DHEA) is an anabolic steroid like dihydrotestosterone (DHT), the most potent natural androgen, and tetrahydrogestrinone (THG)Fernand Labrie
Molecular Endocrinology and Oncology Laboratory, Laval University Hospital Research Center CRCHUL and Laval University, Quebec City, Canada G1V 4G2
J Steroid Biochem Mol Biol 100:52-8. 2006..The present microarray approach to identify anabolic compounds is applicable to all potential androgenic/anabolic compounds...
Future perspectives of selective estrogen receptor modulators used alone and in combination with DHEAF Labrie
Molecular Endocrinology and Oncology Research Center, Laval University Hospital Research Center CRCHUL and Laval University, 2705, Laurier Boulevard, Quebec City, Quebec G1V 4G2, Canada
Endocr Relat Cancer 13:335-55. 2006..DHEA could thus compensate for the important loss of androgens that accompanies aging and could also permit sex steroid formation and action in the brain while breast cancer prevention would be achieved by the SERM...
Screening decreases prostate cancer mortality: 11-year follow-up of the 1988 Quebec prospective randomized controlled trialFernand Labrie
Oncology and Molecular Endocrinology Research Center and Departments of Medicine and Radiology, Laval University Medical Center CHUL, and Laval University, Quebec, Canada
Prostate 59:311-8. 2004..This clinical trial is aimed at evaluating the impact of prostate cancer screening on cancer-specific mortality...
Medical castration with LHRH agonists: 25 years later with major benefits achieved on survival in prostate cancerFernand Labrie
Oncology and Molecular Endocrinology Research Center, Laval University Medical Center (CHUL) and Laval University, , , Canada
J Androl 25:305-13. 2004
[From the gene to the clinic: prostate cancer death can now be an exception?]Fernand Labrie
Centre de recherche en endocrinologie moléculaire et oncologique, Centre de Recherche du CHUL, Centre Hospitalier de l Université Laval et Université Laval, Sainte Foy, Quebec, G1V 4G2 Canada
Med Sci (Paris) 19:910-9. 2003..Today's data show that with the simple application of the available diagnostic and therapeutic tools, death from prostate cancer should be an exception...
The combination of a novel selective estrogen receptor modulator with an estrogen protects the mammary gland and uterus in a rodent model: the future of postmenopausal women's health?Fernand Labrie
Oncology and Molecular Endocrinology Research Center, Laval University Medical Center and Laval University, 2705 Laurier Boulevard, Quebec City, Quebec, Canada G1V 4G2
Endocrinology 144:4700-6. 2003....
Tetrahydrogestrinone induces a genomic signature typical of a potent anabolic steroidFernand Labrie
Molecular Endocrinology and Oncology Laboratory, Laval University Medical Research Center CRCHUL and Laval University, Quebec City, G1V 4G2, Canada
J Endocrinol 184:427-33. 2005..The present microarray data provide an extremely precise and unquestionable signature of the androgenic/anabolic activity of THG, an approach which should apply to the analysis of the activity of any anabolic steroid...
Major impact of hormonal therapy in localized prostate cancer--death can already be an exceptionFernand Labrie
Oncology and Molecular Endocrinology Research Center, Le Centre Hospitalier de l Université Laval CHUL and Laval University, 2705 Laurier Boulevard, Quebec City, Quebec, Canada G1V 4G2
J Steroid Biochem Mol Biol 92:327-44. 2004..Most importantly, recent data show that the addition of a pure antiandrogen to an LHRH agonist in order to block the androgens made locally in the prostate leads to a 90% long-term control or probable cure of prostate cancer...
Extragonadal synthesis of sex steroids: intracrinologyF Labrie
Oncology and Molecular Endocrinology Research Center, Laval University Medical Center CHUL, and Laval University, 2705 Boulevard Laurier, Quebec
Ann Endocrinol (Paris) 64:95-107. 2003....
Current status of endocrine therapy in localized prostate cancer: cure has become a strong possibilityFernand Labrie
Oncology and Molecular Endocrinology Research Center, Laval University Medical Center CHUL, Quebec City, Quebec, Canada
Int Braz J Urol 30:3-11. 2004..This paper presents and discusses the current knowledge available on the use and results of endocrine therapy in localized prostate cancer...
Gonadotropin-releasing hormone agonists in the treatment of prostate cancerFernand Labrie
Oncology and Molecular Endocrinology Research Center, Laval University Medical Center Centre Hospitalier de l Université Laval, 2705 Laurier Boulevard, Quebec City, Quebec, Canada
Endocr Rev 26:361-79. 2005....
Androgen blockade in prostate cancer in 2002: major benefits on survival in localized diseaseFernand Labrie
Molecular Endocrinology and Oncology Research Center, Laval University Medical Center CHUL, Laval University, 2705 Laurier Boulevard, Quebec City, Quebec, Canada G1V 4G2
Mol Cell Endocrinol 198:77-87. 2002..On the other hand, data already available show that long term and continuous (not intermittent) androgen blockade is highly efficient and can achieve long term control or possible cure of localized prostate cancer...
Is dehydroepiandrosterone a hormone?F Labrie
Laboratory of Molecular Endocrinology and Oncology, Laval University Hospital Research Center CRCHUL and Laval University, Quebec City, Quebec G1V4G2, Canada
J Endocrinol 187:169-96. 2005....
Androgen glucuronides, instead of testosterone, as the new markers of androgenic activity in womenFernand Labrie
Laboratory of Molecular Endocrinology and Oncology, Laval University Hospital Research Center CRCHUL and Laval University, Quebec City, Que, Canada
J Steroid Biochem Mol Biol 99:182-8. 2006..Measuring ADT-G and 3alpha-diol-G might identify cases of true androgen deficiency and provide an opportunity to offer appropriate androgen therapy...
Screening and early hormonal treatment of prostate cancer are accumulating strong evidence and supportF Labrie
Oncology and Molecular Endocrinology Research Center, Department of Medicine, CHUL Research Center, Centre Hospitalier Universitaire de Quebec and Laval University, Quebec City, Quebec, Canada
Prostate 43:215-22. 2000..I review the data published during the last 5 years on the effects of early treatment of prostate cancer on survival...
Changes in serum DHEA and eleven of its metabolites during 12-month percutaneous administration of DHEAFernand Labrie
Laboratory of Molecular Endocrinology and Oncology, Laval University Hospital Research Center CRCHUL and Laval University, Quebec City, Quebec G1V 4G2, Canada
J Steroid Biochem Mol Biol 110:1-9. 2008..On the other hand, the pharmacokinetics of the steroids are stable over the 12-month period with no significant induction or decrease of activity of the enzymatic systems transforming DHEA predominantly into androgens...
Comparable amounts of sex steroids are made outside the gonads in men and women: strong lesson for hormone therapy of prostate and breast cancerFernand Labrie
Molecular Endocrinology and Oncology Research Center, Laval University Hospital Research Center CRCHUL 2705, Laurier Boulevard, Quebec City, Quebec, Canada G1V 4G2
J Steroid Biochem Mol Biol 113:52-6. 2009..Not adding an antiandrogen to castration in men treated for prostate cancer is equivalent to not prescribing a blocker of estrogens in women suffering from breast cancer because they are postmenopausal and have low circulating estradiol...
Effect of intravaginal DHEA on serum DHEA and eleven of its metabolites in postmenopausal womenFernand Labrie
Oncology and Molecular Endocrinology Research Center, Laval University Hospital Research Center CRCHUL and Laval University, 2705 Laurier Boulevard, Quebec City, Quebec G1V 4G2, Canada
J Steroid Biochem Mol Biol 111:178-94. 2008..In addition, the recent observation that DHEA is transformed into both androgens and estrogens in the vagina permits to exert benefits on all the three layers of the vaginal wall...
EM-652 (SCH 57068), a third generation SERM acting as pure antiestrogen in the mammary gland and endometriumF Labrie
Oncology and Molecular Endocrinology Research Center, Centre Hospitalier Universitaire de Quebec, Department of Medicine, Laval University, Canada
J Steroid Biochem Mol Biol 69:51-84. 1999..EM-652 was also the most potent inhibitor of the percentage of cycling cancer cells. (ABSTRACT TRUNCATED)..
Effect of one-week treatment with vaginal estrogen preparations on serum estrogen levels in postmenopausal womenFernand Labrie
Oncology and Molecular Endocrinology Research Center, Laval University Hospital Research Center CRCHUL and Laval University, Quebec, Canada
Menopause 16:30-6. 2009....
Screening decreases prostate cancer death: first analysis of the 1988 Quebec prospective randomized controlled trialF Labrie
Department of Medicine, Laval University Medical Research Center CHUL, Quebec, Canada
Prostate 38:83-91. 1999....
Adrenal androgens and intracrinologyFernand Labrie
Oncology and Molecular Endocrinology Research Center, Laval University Hospital Research Center, Quebec City, Canada
Semin Reprod Med 22:299-309. 2004..The benefits of DHEA include increased bone mineral density, muscle mass, well-being, and libido, as well as beneficial effects against skin atrophy, type 2 diabetes, and obesity...
DHEA and the intracrine formation of androgens and estrogens in peripheral target tissues: its role during agingF Labrie
Laboratory of Molecular Endocrinology, CHUL Le Centre Hospitalier de l Université Laval Research Center, Quebec, Canada
Steroids 63:322-8. 1998..Furthermore, the inhibitory effect of DHEA on the growth of human breast cancer xenografts in vivo in nude mice supports the beneficial use of DHEA as hormone replacement therapy in women...
Characterization of human 3 beta-hydroxysteroid dehydrogenase/delta 5-delta 4-isomerase gene and its expression in mammalian cellsY Lachance
Medical Research Council Group in Molecular Endocrinology, CHUL Research Centre, Quebec, Canada
J Biol Chem 265:20469-75. 1990....
Analysis of the androgenic activity of synthetic "progestins" currently used for the treatment of prostate cancerC Labrie
Medical Research Council Group in Molecular Endocrinology, Laval University Medical Center, Quebec, Canada
J Steroid Biochem 28:379-84. 1987..As shown by the present data, the synthetic "progestins" so-far available all possess variable levels of androgenic activity and are thus not recommended for the treatment of prostate cancer...
Structure and tissue-specific expression of a novel member of the rat 3 beta-hydroxysteroid dehydrogenase/delta 5-delta 4 isomerase (3 beta-HSD) family. The exclusive 3 beta-HSD gene expression in the skinJ Simard
Medical Research Council Group in Molecular Endocrinology, CHUL Research Center, Quebec, Canada
J Biol Chem 268:19659-68. 1993....
Structure and expression of a new complementary DNA encoding the almost exclusive 3 beta-hydroxysteroid dehydrogenase/delta 5-delta 4-isomerase in human adrenals and gonadsE Rheaume
Medical Research Council Group in Molecular Endocrinology, CHUL Research Center, Quebec, Canada
Mol Endocrinol 5:1147-57. 1991..The present data show for the first time that adrenals and gonads express a type of 3 beta HSD isoenzyme that is distinct from the type expressed in the placenta.(ABSTRACT TRUNCATED AT 400 WORDS)..
Localization of type 7 17beta-hydroxysteroid dehydrogenase in mouse tissues. In situ hybridization studiesG Pelletier
Oncology and Molecular Endocrinology Research Center, Centre de Recherche du Centre Hospitalier de l Universite Laval, Quebec, Canada GIV 4G2
J Steroid Biochem Mol Biol 93:49-57. 2005....
Heterogeneity of rat type I 5 alpha-reductase cDNA: cloning, expression and regulation by pituitary implants and dihydrotestosteroneI Lopez-Solache
Medical Research Council Group in Molecular Endocrinology, CHUL Research Center, Quebec, Canada
Biochim Biophys Acta 1305:139-44. 1996..The results demonstrated that rat type I 5 alpha-reductase mRNA is stimulated by pituitary hormones and castration but is decreased by DHT and hypophysectomy...
Functional characterization of the novel L108W and P186L mutations detected in the type II 3 beta-hydroxysteroid dehydrogenase gene of a male pseudohermaphrodite with congenital adrenal hyperplasiaR Sanchez
Medical Research Council Group in Molecular Endocrinology, CHUL Research Center, Quebec, Canada
Hum Mol Genet 3:1639-45. 1994..3% and 0.2% for the L108W and P186L enzymes, respectively.(ABSTRACT TRUNCATED AT 250 WORDS)..
Localization of oestrogen receptor alpha, oestrogen receptor beta and androgen receptors in the rat reproductive organsG Pelletier
Molecular Endrocrinology Laboratory, CHUL Research Center of Laval University, Quebec G1V 4G2, Canada
J Endocrinol 165:359-70. 2000..By establishing the precise sites of action of oestrogens and androgens they contribute to a better understanding of the respective role of these steroids in reproduction function...
Characterization of two mRNA species encoding human estradiol 17 beta-dehydrogenase and assignment of the gene to chromosome 17F Labrie
Department of Molecular Endocrinology, Laval University Medical Centre, Quebec, Canada
J Steroid Biochem 34:189-97. 1989..Using hp E2DH-36 cDNA as a probe for in situ hybridization of translocated chromosomes, the human E2DH gene was localized to the q11-q12 region of chromosome 17...
Human types 1 and 3 3 alpha-hydroxysteroid dehydrogenases: differential lability and tissue distributionI Dufort
Oncology and Molecular Endocrinology Research Center, Laval University Medical Center CHUL and Laval University, Quebec G1V 4G2, Canada
J Clin Endocrinol Metab 86:841-6. 2001....
Molecular biology and genetics of the 3 beta-hydroxysteroid dehydrogenase/delta5-delta4 isomerase gene familyJ Simard
Medical Research Council Group in Molecular Endocrinology, CHUI Research Center, , Canada
J Endocrinol 150:S189-207. 1996
Localization of type 5 17beta-hydroxysteroid dehydrogenase mRNA in mouse tissues as studied by in situ hybridizationG Pelletier
Oncology and Molecular Endocrinology Research Center, Le Centre Hospitalier de l Université Laval CHUL, 2705, Laurier Boulevard, Quebec, G1V 4G2, Canada
Cell Tissue Res 320:393-8. 2005..The data indicate that androgens and estrogens are formed via the action of type 5 17beta-HSD in specific cell types in the liver, ovary, adrenal cortex, and kidney...
Cloning, chromosomal localization, and functional analysis of the murine estrogen receptor betaG B Tremblay
Molecular Oncology Group, Boyal Victoria Hospital Montréal, Quebec, Canada
Mol Endocrinol 11:353-65. 1997..Our results demonstrate that while ER beta shares many of the functional characteristics of ER alpha, the molecular mechanisms regulating the transcriptional activity of mER beta may be distinct from those of ER alpha...
Structure of the human type II 3 beta-hydroxysteroid dehydrogenase/delta 5-delta 4 isomerase (3 beta-HSD) gene: adrenal and gonadal specificityY Lachance
CHUL Research Center, Quebec, Canada
DNA Cell Biol 10:701-11. 1991..The present findings should provide the tools required for detailed analysis of the molecular basis of 3 beta-HSD deficiency as well as of normal sex steroid biosynthesis...
Molecular cloning, cDNA structure and predicted amino acid sequence of bovine 3 beta-hydroxy-5-ene steroid dehydrogenase/delta 5-delta 4 isomeraseH F Zhao
Medical Research Council Group in Molecular Endocrinology, Laval University Medical Centre, Quebec, Canada
FEBS Lett 259:153-7. 1989..Hybridization of cloned cDNAs to bovine ovary poly(A)+ RNA shows the presence of an approximately 1.7 kb mRNA species...
Expression of 17beta-hydroxysteroid dehydrogenase type 2 and type 5 in breast cancer and adjacent non-malignant tissue: a correlation to clinicopathological parametersB Han
Molecular Endocrinology and Oncology Research Center, Laval University Hospital Research Center, 2705 Laurier Blvd, Quebec City, QC, G1V 4G2, Canada
J Steroid Biochem Mol Biol 112:194-200. 2008..The decrease in 17beta-HSD type 2 and 17beta-HSD type 5 expressions in breast cancer may play a predominant role in the development and/or progression of the cancer by modifying the intratumoral levels of estrogens and androgens...
Localization of 17beta-hydroxysteroid dehydrogenase type 1 mRNA in mouse tissuesG Pelletier
Oncology and Molecular Endocrinology Research Center, Centre de recherche du Centre Hospitalier de l Université Laval CRCHUL, 2705, Laurier Boulevard, Quebec, Québec GIV 4G2, Canada
J Mol Endocrinol 33:459-65. 2004..In the testes and peripheral tissues, the action of E2 is probably limited to the cells involved in its formation in an intracrine fashion...
Characterization of macaque 3 beta-hydroxy-5-ene steroid dehydrogenase/delta 5-delta 4 isomerase: structure and expression in steroidogenic and peripheral tissues in primateJ Simard
Medical Research Council Group in Molecular Endocrinology, CHUL Research Centre, Quebec, Canada
Mol Cell Endocrinol 75:101-10. 1991....
Identification and characterization of the G15D mutation found in a male patient with 3 beta-hydroxysteroid dehydrogenase (3 beta-HSD) deficiency: alteration of the putative NAD-binding domain of type II 3 beta-HSDE Rheaume
MRC Group in Molecular Endocrinology, CHUL Research Center, Quebec, Canada
Biochemistry 34:2893-900. 1995..Moreover, the expressed G15D and G15A proteins had decreased affinities for NAD+ with Km values of 113 microM and 148 microM, respectively, compared with 22 microM for normal type II 3 beta-HSD.(ABSTRACT TRUNCATED AT 250 WORDS)..
Isolation and characterization of a stereospecific 3beta-hydroxysteriod sulfotransferase (pregnenolone sulfotransferase) cDNAI Dufort
Medical Research Council Group in Molecular Endocrinology, CHUL Research Center and Laval University, Quebec, Canada
DNA Cell Biol 15:481-7. 1996..3 kb is expressed in liver, intestine, and kidney. Guinea pig 3beta-hydroxysteroid sulfotransferase is thus different from that in humans, who possess two mRNA species of 1.3 and 1.8 kb...
Effects of dihydrotestosterone on adipose tissue measured by serial analysis of gene expressionC Bolduc
Molecular Endocrinology and Oncology Research Center, Laval University Medical Center, Department of Anatomy and Physiology, , , Canada
J Mol Endocrinol 33:429-44. 2004..The novel transcripts regulated by DHT may contribute to identify new mechanisms involved in the action of sex hormones and their potential role in obesity...
The human type II 17 beta-hydroxysteroid dehydrogenase gene encodes two alternatively spliced mRNA speciesY Labrie
CHUL Research Center, Quebec, Canada
DNA Cell Biol 14:849-61. 1995..Cloning of the 17 beta-HSD type II gene provides us with the tools to study its transcriptional expression...
Type 5 17beta-hydroxysteroid dehydrogenase: its role in the formation of androgens in womenV Luu-The
Medical Research Council Group in Molecular Endocrinology, Oncology and Molecular Endocrinology Research Center, Laval University Hospital CHUL and Laval University, 2705 Laurier Boulevard, G1V 4G2, Quebec, Canada
Mol Cell Endocrinol 171:77-82. 2001..The double activity of type 5 17beta-HSD in the female reproductive tissues is probably necessary to the control of the optimal level of progesterone and sex steroids...
Cloning and expression of cDNA encoding human placental estrogen sulfotransferaseF Bernier
Medical Research Council Group in Molecular Endocrinology, CHUL Research Center, Quebec, Canada
Mol Cell Endocrinol 99:R11-5. 1994....
Structure of two in tandem human 17 beta-hydroxysteroid dehydrogenase genesV Luu-The
Medical Research Council Group in Molecular Endocrinology, Laval University Medical Centre, Quebec, Canada
Mol Endocrinol 4:268-75. 1990..These new findings provide the basis for a better understanding of the molecular mechanisms involved in 17 beta-HSD deficiency and peripheral sex steroid metabolism...
Molecular basis of congenital adrenal hyperplasia in two siblings with classical nonsalt-losing 3 beta-hydroxysteroid dehydrogenase deficiencyE Rheaume
Medical Research Council Group in Molecular Endocrinology, CHUL Research Center, Quebec, Canada
J Clin Endocrinol Metab 79:1012-8. 1994....
Effects of intravaginal dehydroepiandrosterone on vaginal histomorphology, sex steroid receptor expression and cell proliferation in the ratLouise Berger
Oncology and Molecular Endocrinology Research Center, Laval University Medical Center CHUL and Laval University, Quebec G1V 4G2, Canada
J Steroid Biochem Mol Biol 109:67-80. 2008..Moreover, intravaginal estrogen-containing pills, creams and rings lead to significant systemic exposure to estrogen, thus indicating the need for a completely novel approach to alleviate vaginal atrophy in postmenopausal women...
DHEA, important source of sex steroids in men and even more in womenFernand Labrie
Research Center in Molecular Endocrinology, Oncology and Human Genomics, Laval University and Laval University Hospital Research Center CRCHUL, Quebec, Canada
Prog Brain Res 182:97-148. 2010....
Hormonal therapy of prostate cancerFernand Labrie
Research Center in Molecular Endocrinology, Oncology and Human Genomics, Laval University and Laval University Hospital Research Center CRCHUL, Quebec, Canada
Prog Brain Res 182:321-41. 2010....
Isolation and characterization of a cDNA encoding mouse 3alpha-hydroxysteroid dehydrogenase: an androgen-inactivating enzyme selectively expressed in female tissuesVéronique Bellemare
Oncology and Molecular Endocrinology Research Center, Laval University Medical Center CHUL, 2705 Laurier Boulevard, Que, Canada G1V 4G2
J Steroid Biochem Mol Biol 98:18-24. 2006..This role could be related to the inactivation of excess of androgen and progesterone that are more severely regulated than in man...
Serum steroid levels during 12-week intravaginal dehydroepiandrosterone administrationFernand Labrie
Laval University Hospital Research Center and Laval University, Quebec, Canada
Menopause 16:897-906. 2009..8% (23.4 mg) intravaginal DHEA, the objective of the present study was to investigate the serum steroid levels during a 12-week daily intravaginal administration of 0%, 0.25%, 0.5%, and 1.0% DHEA (Prasterone) 1.3 mL ovules...
Atlas of dihydrotestosterone actions on the transcriptome of prostate in vivoCi Ma
Department of Anatomy and Physiology, Molecular Endocrinology and Oncology Research Center, Laval University Medical Center, Laval University, Quebec, Canada
Prostate 69:293-316. 2009..Using serial analysis of gene expression (SAGE), we studied the transcriptomic changes in vivo by dihydrotestosterone (DHT) treatment in mice to better understand androgen effects in the prostate...
Plasma lipoprotein profile in the male cynomolgus monkey under normal, hypogonadal, and combined androgen blockade conditionsMathias Leblanc
Molecular Endocrinology and Oncology Research Center, Laval University Medical Center and Laval University, , Canada, G1V 4G2
J Clin Endocrinol Metab 89:1849-57. 2004..Such data support the suggestion that androgens and estrogens produced from adrenal precursors in peripheral intracrine tissues could have important, but so-far unsuspected, effects on the homeostasis of lipid and lipoprotein metabolism...
Gender differences and effects of sex steroids and dehydroepiandrosterone on androgen and oestrogen alpha receptors in mouse sebaceous glandsL Azzi
Oncology and Molecular Endocrinology Research Center, CHUL Research Center and Laval University, 2705 Laurier Boulevard, Quebec City, Quebec G1V 4G2, Canada
Br J Dermatol 154:21-7. 2006..CONCLUSIONS: The present data show gender differences and demonstrate that DHT, E2 and DHEA exert specific effects on the expression of AR and ERalpha in mouse sebocytes...
Estrogen receptor alpha-mediated adiposity-lowering and hypocholesterolemic actions of the selective estrogen receptor modulator acolbifeneC Lemieux
Department of Anatomy and Physiology, Faculty of Medicine, Laval Hospital Research Center, Laval University, Quebec City, Quebec, Canada
Int J Obes (Lond) 29:1236-44. 2005..CONCLUSION: The beneficial metabolic actions of the SERM ACOL on adiposity and on plasma and liver lipids are entirely due to its interaction with the ERalpha...
Can combined androgen blockade provide long-term control or possible cure of localized prostate cancer?Fernand Labrie
Prostate Cancer Clinical Research Unit, Department of Medicine, Laval University Medical Center (CHUL) and Laval University, Quebec City, Quebec, Canada
Urology 60:115-9. 2002..CONCLUSIONS: The present data suggest that long-term and continuous CAB offers the possibility of long-term control or possible cure of localized prostate cancer...
Chemical synthesis and biological activities of 16alpha-derivatives of 5alpha-androstane-3alpha,17beta-diol as antiandrogensJenny Roy
Medicinal Chemistry Division, Oncology and Molecular Endocrinology Research Center, Centre Hospitalier Universitaire de Quebec CHUQ, Pavillon CHUL and Université Laval, Que, Canada G1V 4G2
Bioorg Med Chem 15:3003-18. 2007..1 microM). The new steroidal compound, 15, thus constitutes a good starting point for development of future antiandrogens with a therapeutic potential against prostate cancer...
Gender differences in mouse skin morphology and specific effects of sex steroids and dehydroepiandrosteroneLamia Azzi
Oncology and Molecular Endocrinology Research Center, CHUL Research Center and Laval University, Quebec City, QC, Canada
J Invest Dermatol 124:22-7. 2005..GDX triggers a rapid hair growth from telogen to anagen with a thicker hair shaft diameter in females. This data shows that DHT, E2, and DHEA exert specific effects on the different skin layers and appendages...
Bioavailability and pharmacokinetics of dehydroepiandrosterone in the cynomolgus monkeyMathias Leblanc
Molecular Endocrinology and Oncology Research Center, Laval University Medical Center, , , Canada G1V 4G2
J Clin Endocrinol Metab 88:4293-302. 2003..Furthermore, the present study supports the importance of measuring circulating androgen glucuronide derivatives to assess hormonal exposure of peripheral tissues to androgens after DHEA administration...
Pharmacokinetics of oral dehydroepiandrosterone (DHEA) in the ovariectomised cynomolgus monkeyMathias Leblanc
Laboratory of Molecular Endocrinology and Oncology, Laval University Medical Center (CHUL, Laval University, Que, Canada
J Steroid Biochem Mol Biol 81:159-64. 2002....
Steroidal lactones as inhibitors of 17beta-hydroxysteroid dehydrogenase type 5: chemical synthesis, enzyme inhibitory activity, and assessment of estrogenic and androgenic activitiesPatrick Bydal
Medicinal Chemistry Division, Oncology and Molecular Endocrinology Research Center, CHUL Research Center and University Laval, 2705 Laurier Boulevard, Quebec, Quebec G1V 4G2, Canada
Eur J Med Chem 44:632-44. 2009..03 microM. Interestingly, no significant proliferative effect was detected on Shionogi (AR+) cells in culture in the presence of 0.1 and 1 microM of lactone 26...
Adrenal precursor C19 steroids are potent stimulators of growth of androgen-sensitive mouse mammary carcinoma Shionogi cells in vitroD Begin
MRC Group in Molecular Endocrinology, Laval University Medical Center, Quebec, Canada
Mol Cell Endocrinol 58:213-9. 1988..The present data show that the four main adrenal steroids present in the serum of adult men can exert potent stimulatory effects on the growth of an androgen-sensitive cancer cell line through an androgen receptor-mediated mechanism...
Structural characterization of the human androgen receptor ligand-binding domain complexed with EM5744, a rationally designed steroidal ligand bearing a bulky chain directed toward helix 12Line Cantin
Oncology and Molecular Endocrinology Research Center, Laval University Medical Center CHUL and Laval University, Quebec G1V 4G2, Canada
J Biol Chem 282:30910-9. 2007..This structural information will be helpful to refine the structure of the chains placed on the C18 atom to obtain efficient H12-directed steroidal antiandrogens...
Intravaginal dehydroepiandrosterone (Prasterone), a physiological and highly efficient treatment of vaginal atrophyFernand Labrie
Laval University Hospital Research Center and Laval University, Quebec, Canada
Menopause 16:907-22. 2009....
Fine temporal analysis of DHT transcriptional modulation of the ATM/Gadd45g signaling pathways in the mouse uterusMahine Ivanga
Oncology and Molecular Endocrinology Research Center, CHUL Research Center, CHUQ, Department of Anatomy and Physiology, Laval University, Quebec, Canada
Mol Reprod Dev 76:278-88. 2009....
Comparison of crystal structures of human androgen receptor ligand-binding domain complexed with various agonists reveals molecular determinants responsible for binding affinityKarine Pereira de Jésus-Tran
Oncology and Molecular Endocrinology Research Center, Laval University Medical Center CHUL and Laval University, Quebec, QC G1V 4G2, Canada
Protein Sci 15:987-99. 2006..Our crystallographic data combined with those obtained by modeling will be helpful in the design of novel molecules with stronger affinity for the AR...
Comparison of the effects of EM-652 (SCH57068), tamoxifen, toremifene, droloxifene, idoxifene, GW-5638 and raloxifene on the growth of human ZR-75-1 breast tumors in nude miceMatthieu Gutman
Oncology and Molecular Endocrinology Research Center, Laval University Medical Center and Laval University, Quebec, Canada
Int J Cancer 99:273-8. 2002....
Oestrogenic regulation of pro-opiomelanocortin, neuropeptide Y and corticotrophin-releasing hormone mRNAs in mouse hypothalamusG Pelletier
Oncology and Molecular Endocrinology Research Center, Centre de recherche du Centre Hospitalier de l Université Laval CRCHUL, Quebec, Quebec, Canada
J Neuroendocrinol 19:426-31. 2007..The present data suggest that oestrogen might exert an anorexigenic action by stimulating POMC and CRH mRNA expression and decreasing NPY mRNA expression in the hypothalamus...
Molecular cloning of human type 3 3 alpha-hydroxysteroid dehydrogenase that differs from 20 alpha-hydroxysteroid dehydrogenase by seven amino acidsI Dufort
Medical Research Council Group in Molecular Endocrinology, CHUL Research Center, Quebec, Canada
Biochem Biophys Res Commun 228:474-9. 1996..1, 78.3, and 67.4% identity with rat 3 alpha-HSD and rabbit and rat 20 alpha-HSD, respectively. 3 alpha-HSD3 belongs to the aldo-keto reductase family and like almost all the members of this family preferred NADPH as cofactor...
Localization of type 5 17beta-hydroxysteroid dehydrogenase, 3beta-hydroxysteroid dehydrogenase, and androgen receptor in the human prostate by in situ hybridization and immunocytochemistryM El-Alfy
Medical Research Council Group in Molecular Endocrinology, CHUL Research Center and Laval University, Quebec, Canada
Endocrinology 140:1481-91. 1999..The potential role of androgen formation and action in blood vessels is unknown and opens new avenues of investigation for a better understanding of the multiple roles of androgens...
Effect of long-term treatment with the antiestrogen EM-652.HCl on pituitary estrogen receptor alpha and prolactin mRNA expression in intact, ovariectomized and gonadotropin-releasing hormone-treated female ratsG Pelletier
Oncology and Molecular Endocrinology Research Center, Laval University Medical Center CHUL, and Laval University, Quebec, Canada
Neuroendocrinology 74:367-74. 2001..It is suggested that estrogens can positively regulate pituitary ERalpha gene transcription and that the antiestrogen EM-652.HCl can downregulate by itself pituitary ERalpha gene transcription...
Immunoelectron microscopic localization of three key steroidogenic enzymes (cytochrome P450(scc), 3 beta-hydroxysteroid dehydrogenase and cytochrome P450(c17)) in rat adrenal cortex and gonadsG Pelletier
Oncology and Molecular Endocrinology Research Center, Laval University Medical Center CHUL, and Laval University, Quebec, Canada G1V 4G2
J Endocrinol 171:373-83. 2001....
Chronic administration of dehydroepiandrosterone (DHEA) to female monkey and rat has no effect on mammary gland histologyG Pelletier
Laboratory of Molecular Endocrinology and Oncology, CHUL Research Center and Laval University, 2705 Laurier Boulevard, Quebec City, Quebec, Canada
J Steroid Biochem Mol Biol 108:102-8. 2008..As in the monkey, the histology of the female rat mammary gland remained unchanged following long-term treatment with any of the two doses of DHEA...
Expression of sulfotransferase 1E1 in human prostate as studied by in situ hybridization and immunocytochemistryY Takase
Oncology and Molecular Endocrinology Laboratory, CHUL Research Center, Quebec, Canada
Prostate 67:405-9. 2007..We have recently shown that EST 1E1 is highly expressed in male mouse reproductive organs, including prostate. It appeared of interest to study the expression of EST 1E1 in human prostate...
Localization and glucocorticoid regulation of 11beta-hydroxysteroid dehydrogenase type 1 mRNA in the male mouse forebrainG Pelletier
Oncology and Molecular Endocrinology Research Center, Centre de Recherche du Centre Hospitalier de l Universite Laval, 2705 Laurier Boulevard, Quebec, Quebec, Canada G1V 4G2
Neuroscience 145:110-5. 2007..This downregulation might contribute to maintain low intracellular corticosterone levels in central regions and then prevent the deleterious effects induced by high glucocorticoid levels...
Immunoelectron microscopic localization of 3beta-hydroxysteroid dehydrogenase and type 5 17beta-hydroxysteroid dehydrogenase in the human prostate and mammary glandG Pelletier
Oncology and Molecular Endocrinology Research Center, Laval University Hospital CHUL, Quebec, G1V 4G2, Canada
J Mol Endocrinol 26:11-9. 2001..The absence of any association of the enzymes with membrane-bound organelles appears as a common finding in the reactive cell types of two peripheral tissues...
Unique features of the basal cells of human prostate epitheliumM El-Alfy
Oncology and Molecular Endocrinology Research Center, Laval University Hospital CHUL, and Laval University, Quebec, G1V 4G2, Canada
Microsc Res Tech 51:436-46. 2000..Human basal cells could thus regulate functions of the luminal cells by being part of a two-cell mechanism somewhat analogous to thecal and granulosa cells in the ovary...
Cellular localization of estrogen receptor beta messenger ribonucleic acid in cynomolgus monkey reproductive organsG Pelletier
Laboratory of Molecular Endocrinology, Laval University Medical Research Center and Laval University, Quebec, Canada G1V 4G2
Biol Reprod 61:1249-55. 1999..In the male testis and prostate, ER-beta has been found in cells that contain very little or no ER-alpha. The role of circulating or locally produced estrogens in the male reproductive system remains to be clarified...
Role of extra-ovarian oestrogens in the regulation of gonadotropin releasing hormone mRNA expression in the rat brainG Pelletier
Oncology and Molecular Endocrinology Research Center, Laval University Medical Center CHUL and Laval University, Quebec, Canada
J Neuroendocrinol 13:678-82. 2001....
Androgenic down-regulation of urotensin II precursor, urotensin II-related peptide precursor and androgen receptor mRNA in the mouse spinal cordG Pelletier
Oncology and Molecular Endocrinology Research Center, Centre de Recherche du Centre Hospitalier de l Universite Laval, 2705 Laurier Boulevard, Quebec, Canada GIV 4G2
Neuroscience 132:689-96. 2005....
Prostate cancer susceptibility genes: lessons learned and challenges posedJ Simard
Cancer Genomics Laboratory, Oncology and Molecular Endocrinology Research Center, CHUL Research Center and Laval University, Quebec City, Canada G1V 4G2
Endocr Relat Cancer 10:225-59. 2003....
Cellular localization of mRNA expression of enzymes involved in the formation and inactivation of hormonal steroids in the mouse prostateG Pelletier
Oncology and Molecular Endocrinology Research Center, Laval University Hospital CHUL, 2705, Laurier Boulevard, Quebec, G1V 4G2, Canada
J Histochem Cytochem 52:1351-6. 2004..The present results indicate that both epithelial and stromal cells in the mouse prostate play a role in local formation and inactivation of hormonal steroids...
Localization of 20alpha-hydroxysteroid dehydrogenase mRNA in mouse brain by in situ hybridizationG Pelletier
Oncology and Molecular Endocrinology Research Center, Centre de Recherche du Centre Hospitalier de l Universite Laval, Quebec, 2705, Laurier Boulevard, Canada G1V 4G2
Brain Res Mol Brain Res 125:143-6. 2004..In the hippocampus, the labelling was mostly located over pyramidal cells of the CA1 layer. These results suggest that progesterone can be inactivated by 20alpha-HSD in some specific brain areas...
