Unknown

Dataset Information

0

MiR-191 regulates mouse erythroblast enucleation by down-regulating Riok3 and Mxi1.


ABSTRACT: Using RNA-seq technology, we found that the majority of microRNAs (miRNAs) present in CFU-E erythroid progenitors are down-regulated during terminal erythroid differentiation. Of the developmentally down-regulated miRNAs, ectopic overexpression of miR-191 blocks erythroid enucleation but has minor effects on proliferation and differentiation. We identified two erythroid-enriched and developmentally up-regulated genes, Riok3 and Mxi1, as direct targets of miR-191. Knockdown of either Riok3 or Mxi1 blocks enucleation, and either physiological overexpression of miR-191 or knockdown of Riok3 or Mxi1 blocks chromatin condensation. Thus, down-regulation of miR-191 is essential for erythroid chromatin condensation and enucleation by allowing up-regulation of Riok3 and Mxi1.

SUBMITTER: Zhang L 

PROVIDER: S-EPMC3022257 | biostudies-literature | 2011 Jan

REPOSITORIES: biostudies-literature

altmetric image

Publications

miR-191 regulates mouse erythroblast enucleation by down-regulating Riok3 and Mxi1.

Zhang Lingbo L   Flygare Johan J   Wong Piu P   Lim Bing B   Lodish Harvey F HF  

Genes & development 20101231 2


Using RNA-seq technology, we found that the majority of microRNAs (miRNAs) present in CFU-E erythroid progenitors are down-regulated during terminal erythroid differentiation. Of the developmentally down-regulated miRNAs, ectopic overexpression of miR-191 blocks erythroid enucleation but has minor effects on proliferation and differentiation. We identified two erythroid-enriched and developmentally up-regulated genes, Riok3 and Mxi1, as direct targets of miR-191. Knockdown of either Riok3 or Mxi  ...[more]

Similar Datasets

| S-EPMC3383020 | biostudies-literature
| S-EPMC3614867 | biostudies-literature
| S-EPMC3487547 | biostudies-literature
| S-EPMC3292296 | biostudies-literature
| S-EPMC3283871 | biostudies-other
| S-EPMC8759143 | biostudies-literature
| S-EPMC7686909 | biostudies-literature
| S-EPMC2995360 | biostudies-other
| S-EPMC5580276 | biostudies-literature
| S-EPMC4439112 | biostudies-literature