RRC ID 6000
Author González-González E, López-Casas PP, Del Mazo J.
Title Gene silencing by RNAi in mouse Sertoli cells.
Journal Reprod Biol Endocrinol
Abstract BACKGROUND:RNA interference (RNAi) is a valuable tool in the investigation of gene function. The purpose of this study was to examine the availability, target cell types and efficiency of RNAi in the mouse seminiferous epithelium.
METHODS:The experimental model was based on transgenic mice expressing EGFP (enhanced green fluorescent protein). RNAi was induced by in vivo transfection of plasmid vectors encoding for short hairpin RNAs (shRNAs) targeting EGFP. shRNAs were transfected in vivo by microinjection into the seminiferous tubules via the rete testis followed by square wave electroporation. As a transfection reporter, expression of red fluorescent protein (HcRed 1) was used. Cell types, the efficiency of both transfections and RNAi were all evaluated.
RESULTS:Sertoli cells were the main transfected cells. A reduction of about 40% in the level of EGFP protein was detected in cells successfully transfected both in vivo and in vitro. However, the efficiency of in vivo transfection was low.
CONCLUSION:In adult seminiferous epithelial cells, in vivo post-transcriptional gene silencing mediated by RNAi via shRNA is efficient in Sertoli cells. Similar levels of RNAi were detected both in vivo and in vitro. This also indicates that Sertoli cells have the necessary silencing machinery to repress the expression of endogenous genes via RNAi.
Volume 6
Pages 29
Published 2008-7-11
DOI 10.1186/1477-7827-6-29
PII 1477-7827-6-29
PMID 18620581
PMC PMC2483279
MeSH Animals Cells, Cultured Electroporation Epithelial Cells / cytology Epithelial Cells / physiology Gene Silencing* Green Fluorescent Proteins / genetics Male Mice Mice, Inbred C57BL Mice, Transgenic RNA Interference* Seminiferous Epithelium / cytology Seminiferous Epithelium / physiology* Sertoli Cells / cytology Sertoli Cells / physiology* Transfection
IF 2.589
Times Cited 14
Mice C57BL/6-Tg(CAG-EGFP)C14-Y01-FM131Osb