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Meis1 is a member of three-amino-acid loop extension (TALE) homeodomain transcription factors. Studies in the last decade have shown that Meis1 has crucial roles in cardiac regeneration, stem cell function, and tumorigenesis. We have recently demonstrated that knocking out of Meis1 in adult cardiomyocytes resulted in the induction of cardiomyocyte proliferation. This suggests that targeting of Meis1 might be utilized in the manipulation of cardiomyocyte cell cycle post cardiac injuries. In addition, hematopoietic stem cell (HSC) specific deletion of Meis1 leads to in vivo expansion of HSCs pool. Thus, targeting Meis1 may lead to not only cell cycle entry but also ex vivo and in vivo expansion of HSCs. On the other hand, Meis1 transcriptionally regulates the expression of hypoxic tumor markers, namely Hif-1α and Hif-2α. Hif-1α and Hif-2α are involved in the induction of cytoplasmic glycolysis and scavenging of reactive oxygen species (ROS), respectively. This review aims to highlight emerging roles of Meis1 towards development of new therapeutic approaches in the treatment of myocardial injuries, bone failure, and cancer.

Original publication

DOI

10.2174/1389450118666170724165514

Type

Journal article

Journal

Curr Drug Targets

Publication Date

24/07/2017

Keywords

Meis1, and cancer stem cells, cancer metabolism, cardiac regeneration, stem cell expansion