Abstract
Polycomb group proteins (PcGs) add repressive post translational histone modifications such as H2AK119ub1, and histone H2A deubiquitinases remove it. Mice lacking histone H2A deubiquitinases such as Usp16 and Bap1 die in embryonic stage, while mice lacking Usp3, Mysm1, Usp12, and Usp21 have been shown to be deficient in hematopoietic lineage differentiation, cell cycle regulation, and DNA repair. Thus, it is likely that histone deubiquitinases may also be required for human endothelial cell differentiation; however, there are no reports about the role of histone H2A deubiquitinase BAP1 in human endothelial cell development. We differentiated human pluripotent stem cells into the endothelial lineage which expressed stable inducible shRNA against BAP1. Our results show that BAP1 is required for human endothelial cell differentiation.
Data availability
The data that support the findings of the study are available with the corresponding author upon request.
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The work was partly funded by the Department of Biotechnology (DBT), Govt of India, BT/PR41465/MED/31/435/2020.
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ESM 1
(JPG 166 kb)
ESM 2
Fig S1 shows western blot of BAP1 in all 3 biological replicates along with loading control β-ACTIN. Fig S2 represents the effect of BAP1 knockdown on the cell size of shRNA scrambled (control), shRNA1 BAP1 and shRNA2 BAP1. Fig S3 shows western blot for CD31 in scrambled, shRNA1 and shRNA2 along with its densitometric analysis (Fig S4). Fig S6 depicts western blot of RUNX2 in scrambled, shRNA1 and shRNA2 along with its densitometric analysis (Fig S6). Fig S7 shows the negative control panel for immunofluorescence for figure 1B. (DOCX 21380 kb)
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Shastry, S., Samal, D. & Pethe, P. Histone H2A deubiquitinase BAP1 is essential for endothelial cell differentiation from human pluripotent stem cells. In Vitro Cell.Dev.Biol.-Animal (2024). https://doi.org/10.1007/s11626-024-00935-x
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DOI: https://doi.org/10.1007/s11626-024-00935-x