Abstract
MiR-125 is a highly conserved microRNA throughout many different species from nematode to humans. In humans, there are three homologs (hsa-miR-125b-1, hsa-miR-125b-2 and hsa-miR-125a). Here we review a recent research on the role of miR-125 in normal and malignant hematopoietic cells. Its high expression in hematopoietic stem cells (HSCs) enhances self-renewal and survival. Its expression in specific subtypes of myeloid and lymphoid leukemias provides resistance to apoptosis and blocks further differentiation. A direct oncogenic role in the hematopoietic system has recently been demonstrated by several mouse models. Targets of miR-125b include key proteins regulating apoptosis, innate immunity, inflammation and hematopoietic differentiation.
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Acknowledgements
We thank Y Kirschenbaum for reading and correcting the manuscript. This work was supported by the German Israeli Foundation (SI and AB), ISF-Legacy program (SI), Children with Leukemia UK (SI), Waxman Cancer Foundation NY (SI), the National Institutes of Health (SI), Wolfson foundation (SI), i-CORE (SI), and the WLBH Foundation (SI).
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The study is partial fulfillment of the requirements for completing a PhD degree (Lital Shaham) for Bar-Ilan University, Ramat Gan, Israel.
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Shaham, L., Binder, V., Gefen, N. et al. MiR-125 in normal and malignant hematopoiesis. Leukemia 26, 2011–2018 (2012). https://doi.org/10.1038/leu.2012.90
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DOI: https://doi.org/10.1038/leu.2012.90
Keywords
- microRNA
- hematopoiesis
- hematological malignancies
- acute myeloid leukemia
- acute lymphoblastic leukemia
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