MicroRNA-155 Confers Encephalogenic Potential to Th17 Cells by Promoting Effector Gene Expression

Effector Gene Expression Potential to Th17 Cells by Promoting MicroRNA-155 Confers Encephalogenic

MicroRNA-155 Modulates Treg and Th17 Cells Differentiation and Th17 Cell Function by Targeting SOCS1

MicroRNA (miR)-155 is a critical player in both innate and adaptive immune responses. It can influence CD4(+) T cell lineage choice. To clarify the role of miR-155 in CD4(+) CD25(+) regulatory T (Treg)/T helper (Th)17 cell differentiation and function, as well as the mechanism involved, we performed gain-and loss-of-function analysis by transfection pre-miR-155 and anti-miR-155 into purified CD...

Promoter Methylation and Gene Expression in Human CD34+ Stem Cells Derived Erythroid Lineage by MicroRNA

Background: Stem Cell differentiation is a process composed of vast variety of factors which are controlled by a network of certain mechanisms. This study aims to determine the possible role of DNA methylation, a potent regulator of VHL, ECAD and RUNX3 genes during Erythroid differentiation driven by miR-451. Materials and Methods: To determine the methylation status of promoters and the e...

Repression of arginase-2 expression in dendritic cells by microRNA-155 is critical for promoting T cell proliferation.

Arginine, a semiessential amino acid implicated in diverse cellular processes, is a substrate for two arginases-Arg1 and Arg2-having different expression patterns and functions. Although appropriately regulated Arg1 expression is critical for immune responses, this has not been documented for Arg2. We show that Arg2 is the dominant enzyme in dendritic cells (DCs) and is repressed by microRNA-15...

Shhh! Silencing by microRNA-155.

Small RNAs mediate a diverse pot-pourri of post-transcriptional silencing mechanisms, ranging from 'classical' RNA interference (RNAi), to gene repression by microRNAs (miRNAs), to maintenance of genomic stability by repeat-associated small RNAs. Here, we review recent findings on the function of miR-155, particularly its roles in mammalian innate and adaptive immunity, viral infection and onco...