NOTCH1

NOTCH1 is one of four known genes encoding the NOTCH family of Notch proteins, a group of receptors involved in the Notch signaling pathway.

A study indicates that VGLL4 is a key player in the mediation of NOTCH1-dependent HIF1α-regulated erythropoiesis and can be sensitively regulated by oxygen concentrations. On the other hand, VGLL4 is a pivotal regulator of heme biosynthesis and erythroid terminal differentiation, which collectively improve oxygen metabolism 1).

Kahn et al. identified a mechanism in which NOTCH1 activates BMI1 through the activation of TWIST1. NOTCH1 expression and activity are directly related to medulloblastoma metastasis and decreased survival rate of tumor-bearing mice 2).

1)
Wang Y, Liu X, Xie B, Yuan H, Zhang Y, Zhu J. The NOTCH1-dependent HIF1α/VGLL4/IRF2BP2 oxygen sensing pathway triggers erythropoiesis terminal differentiation. Redox Biol. 2019 Sep 2;28:101313. doi: 10.1016/j.redox.2019.101313. [Epub ahead of print] PubMed PMID: 31539803.
2)
Kahn SA, Wang X, Nitta RT, Gholamin S, Theruvath J, Hutter G, Azad TD, Wadi L, Bolin S, Ramaswamy V, Esparza R, Liu KW, Edwards M, Swartling FJ, Sahoo D, Li G, Wechsler-Reya RJ, Reimand J, Cho YJ, Taylor MD, Weissman IL, Mitra SS, Cheshier SH. Notch1 regulates the initiation of metastasis and self-renewal of Group 3 medulloblastoma. Nat Commun. 2018 Oct 8;9(1):4121. doi: 10.1038/s41467-018-06564-9. Erratum in: Nat Commun. 2018 Nov 2;9(1):4651. PMID: 30297829; PMCID: PMC6175869.