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Related Experiment Video

Updated: Mar 10, 2026

Pan-myeloid Differentiation of Human Cord Blood Derived CD34+ Hematopoietic Stem and Progenitor Cells

Pan-myeloid Differentiation of Human Cord Blood Derived CD34+ Hematopoietic Stem and Progenitor Cells

Published on: August 9, 2019

MiR-513a promotes human erythroid differentiation by modulating c-Jun.

MinJung Kim^1,2, Brittany Taylor^1,3, Shannon Bolten^1,3

¹Center for Stem Cell Biology & Regenerative Medicine, University of Maryland School of Medicine, Baltimore, MD, USA.

|March 9, 2026

Summary

This summary is machine-generated.

MicroRNA-513a promotes red blood cell production by regulating key proteins. This microRNA enhances erythroid differentiation and hemoglobin production, offering new insights into erythropoiesis regulation.

Keywords:

GATA1 c‐JUN erythroid differentiation erythropoiesis microRNAs

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Identification of Key Factors Regulating Self-renewal and Differentiation in EML Hematopoietic Precursor Cells by RNA-sequencing Analysis

Identification of Key Factors Regulating Self-renewal and Differentiation in EML Hematopoietic Precursor Cells by RNA-sequencing Analysis

Published on: November 11, 2014

Area of Science:

Hematology
Molecular Biology
Gene Regulation

Background:

Erythropoiesis is the process of red blood cell formation from hematopoietic stem-progenitor cells (HSPCs).
Erythropoietin (EPO) and its receptor (EPOR) are critical regulators of erythroid differentiation and proliferation.
MicroRNAs (miRs) are key developmental regulators with distinct expression patterns during hematopoietic differentiation.

Purpose of the Study:

To investigate the role of miR-513a-5p in early human erythropoiesis.
To elucidate the molecular mechanisms by which miR-513a regulates erythroid differentiation.

Main Methods:

Expression profiling of EPO-stimulated human HSPCs.
Enforced expression of miR-513a in primary human CD34+ HSPCs and TF-1 erythroleukemia cells.
Analysis of cell-surface markers, erythroid gene/protein expression (hemoglobin, GATA1, GATA2).
Utilized EPOR and GATA1 knockout TF-1 cell lines.
Investigated the role of c-Jun in miR-513a-mediated erythropoiesis.

Main Results:

miR-513a expression was upregulated in EPO-stimulated human erythroid cells.
Enforced miR-513a expression promoted erythroid differentiation and hemoglobin production in HSPCs and TF-1 cells.
miR-513a-stimulated erythropoiesis was dependent on GATA1 but not EPOR.
miR-513a reduced c-Jun and phospho-c-Jun levels.
Overexpression of c-Jun inhibited erythropoiesis, while c-Jun knockout enhanced it.

Conclusions:

miR-513a is a positive regulator of early human erythropoiesis.
miR-513a promotes erythroid differentiation by modulating c-Jun expression and increasing GATA1 levels.
This finding provides a novel mechanism for microRNA-mediated regulation of red blood cell development.