MEIS1 Regulates Hemogenic Endothelial Generation, Megakaryopoiesis, and Thrombopoiesis in Human Pluripotent Stem Cells by Targeting TAL1 and FLI1
Overview
Authors
Affiliations
Human pluripotent stem cells (hPSCs) provide an unlimited source for generating various kinds of functional blood cells. However, efficient strategies for generating large-scale functional blood cells from hPSCs are still lacking, and the mechanism underlying human hematopoiesis remains largely unknown. In this study, we identified myeloid ectopic viral integration site 1 homolog (MEIS1) as a crucial regulator of hPSC early hematopoietic differentiation. MEIS1 is vital for specification of APLNR mesoderm progenitors to functional hemogenic endothelial progenitors (HEPs), thereby controlling formation of hematopoietic progenitor cells (HPCs). TAL1 mediates the function of MEIS1 in HEP specification. In addition, MEIS1 is vital for megakaryopoiesis and thrombopoiesis from hPSCs. Mechanistically, FLI1 acts as a downstream gene necessary for the function of MEIS1 during megakaryopoiesis. Thus, MEIS1 controls human hematopoiesis in a stage-specific manner and can be potentially manipulated for large-scale generation of HPCs or platelets from hPSCs for therapeutic applications in regenerative medicine.
Zhang M, Wan L, Fang H, Zhang X, Wang S, Li F J Inflamm Res. 2025; 18:3105-3123.
PMID: 40059948 PMC: 11889415. DOI: 10.2147/JIR.S507941.
Insight into microRNAs' involvement in hematopoiesis: current standing point of findings.
Nassiri S, Ahmadi Afshar N, Almasi P Stem Cell Res Ther. 2023; 14(1):282.
PMID: 37794439 PMC: 10552299. DOI: 10.1186/s13287-023-03504-3.
Kitagawa Y, Ikenaka A, Sugimura R, Niwa A, Saito M iScience. 2023; 26(10):107893.
PMID: 37771659 PMC: 10522983. DOI: 10.1016/j.isci.2023.107893.
Cross-species transcriptomics reveals bifurcation point during the arterial-to-hemogenic transition.
Mo S, Qu K, Huang J, Li Q, Zhang W, Yen K Commun Biol. 2023; 6(1):827.
PMID: 37558796 PMC: 10412572. DOI: 10.1038/s42003-023-05190-6.
promotes lateral plate mesoderm formation by modulating the Wnt/β-catenin signaling pathway.
Wang D, Li Y, Xu C, Wang H, Huang X, Jin X iScience. 2023; 26(6):106917.
PMID: 37378343 PMC: 10291335. DOI: 10.1016/j.isci.2023.106917.