Polycomb group (PcG) proteins are a family of epigenetic regulators responsible for the repression of genes in proliferation and differentiation of stem cells. PcG protein complex consists of two important epigenetic regulators: PRC1 (polycomb repressive complex 1) and PRC2 (polycomb repressive complex 2). In order to further understand the functions of PcG proteins in stem cell growth and differentiation, we review the PcG protein composition, PcG protein localization in the target gene, PcG protein recruitment, and the functions of PcG proteins in the development of stem cells.
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http://dx.doi.org/10.3881/j.issn.1000-503X.2012.03.019 | DOI Listing |
Vision Res
December 2024
Medical Biotechnology Laboratory, Dr. B. R. Ambedkar Center for Biomedical Research, University of Delhi, Delhi 110007, India. Electronic address:
CYP1B1 is the most common gene implicated in primary congenital glaucoma (PCG) - the most common form of childhood glaucoma. How CYP1B1 mutations cause PCG is not known. Understanding the mechanism of PCG caused by CYP1B1 mutations is crucial for disease management, therapeutics development, and potential prevention.
View Article and Find Full Text PDFJ Mol Evol
December 2024
Bioinformatics Section, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China.
CNS Neurosci Ther
November 2024
School of Basic Medical Sciences, Anhui Medical University, Hefei, China.
Aim: Cerebral ischemic stroke (IS) is one of the leading causes of morbidity and mortality globally. However, the mechanisms underlying IS injury remain poorly understood. Ring finger protein 2 (RNF2), the member of the polycomb family (PcG), has been implicated in diverse biological and pathological conditions.
View Article and Find Full Text PDFMol Med
November 2024
Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, 510080, China.
Background: Polycomb proteins are conventionally known as global repressors in cell fate determination. However, recent observations have shown their involvement in transcriptional activation, the mechanisms of which need further investigation.
Methods: Herein, multiple data from ChIP-seq, RNA-seq and HiChIP before or after RYBP depletion in embryonic stem cell (ESC), epidermal progenitor (EPC) and mesodermal cell (MEC) were analyzed.
Leukemia
November 2024
Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, 60611, USA.
Polycomb group (PcG) proteins play important roles in hematopoietic stem cell (HSC) self-renewal. Mel18 and Bmi1 are homologs of the PCGF subunit within the Polycomb repressive complex 1 (PRC1). Bmi1 (PCGF4) enhances HSC self-renewal and promotes terminal differentiation.
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