Development of miRNA expression signatures of MEFs deficient in a ER stress mediator XBP1 for tunicamycin treatment

ABSTRACT: To further development of our miRNA expression approach to ER stress, we have employed miRNA microarray expression profiling as a discovery platform to identify ER stress-responsible ones. Mouse embryonic fibroblasts (MEFs) deficient in a ER stress mediator XBP1 were treated with tunicamycin for 12 or 24 hrs. miRNAs responsible for tunicamycin-treatment for 12hrs in XBP1-dependent manner were extracted. Among them, expression of three miRNAs (miR-23a, miR-27a, miR-24-2) was quantified in the RNA samples from the same as the microarray, and COS7 cells by real-time PCR, confirming existence of similar mechanisms of trancriptional repression in ER stress by tunicamycin treatment. Mouse embryonic fibroblasts (MEFs) deficient in a ER stress mediator XBP1 were treated with 2ug/mL tunicamycin

ORGANISM(S): Mus musculus

SUBMITTER: Seiichi Oyadomari 

PROVIDER: E-GEOD-35174 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress