Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
12
pubmed:dateCreated
2010-11-24
pubmed:abstractText
MicroRNAs (miRs) are known to repress target genes at posttranscriptional level and play important roles in the maturation of cells. However, the expression profiles of miRs during follicular maturation have not been fully elucidated. This study was designed to investigate the expression profiles of miRs in murine follicles according to human chorionic gonadotropin (hCG) treatment and vitamin C status during in vitro culture. Ovaries were removed from the 12-day-old wild-type and vitamin C-deficient (L-gulonogammalactone oxidase knockout, Gulo-/-) C57BL6 mice. Preantral follicles were isolated and cultured in 20 µL droplets of culture media supplemented with follicle-stimulating hormone and luteinizing hormone (FSH + LH). After their full maturation, follicles were divided into 2 groups: with and without hCG treatment. Real-time polymerase chain reaction (PCR) was performed using oocytes and granulosa cells (G-cells) to evaluate the miRs known to be expressed mainly in the mouse ovary. After the addition of hCG, miR profiles showed divergent changes between oocytes and G-cells. These profiles significantly differed from those of hCG(-) group. Compared to wild type, Gulo-/- mice showed altered miR profiles in matured oocytes and G-cells. Conclusively, hCG supplementation and vitamin C status alter the miR expression profiles in oocytes and G-cells during in vitro growth of murine follicles.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
1933-7205
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
17
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1081-9
pubmed:meshHeading
pubmed-meshheading:20861395-Animals, pubmed-meshheading:20861395-Ascorbic Acid Deficiency, pubmed-meshheading:20861395-Chorionic Gonadotropin, pubmed-meshheading:20861395-Culture Media, pubmed-meshheading:20861395-Female, pubmed-meshheading:20861395-Follicle Stimulating Hormone, pubmed-meshheading:20861395-Gene Expression, pubmed-meshheading:20861395-Granulosa Cells, pubmed-meshheading:20861395-L-Gulonolactone Oxidase, pubmed-meshheading:20861395-Luteinizing Hormone, pubmed-meshheading:20861395-Mice, pubmed-meshheading:20861395-Mice, Inbred C57BL, pubmed-meshheading:20861395-Mice, Knockout, pubmed-meshheading:20861395-MicroRNAs, pubmed-meshheading:20861395-Oocytes, pubmed-meshheading:20861395-Ovarian Follicle, pubmed-meshheading:20861395-Polymerase Chain Reaction, pubmed-meshheading:20861395-Tissue Culture Techniques
pubmed:year
2010
pubmed:articleTitle
MicroRNA expression profiles are altered by gonadotropins and vitamin C status during in vitro follicular growth.
pubmed:affiliation
Department of Obstetrics and Gynecology, Seoul National University, Seoul, South Korea.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't