Deubiquitylation and stabilization of p21 by USP11 is critical for cell cycle progression and DNA damage responses
نویسندگان
چکیده
Molecular Science and Biomedicine Laboratory, State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Biology, College of Chemistry and Chemical Engineering, Aptamer Engineering Center of Hunan Province, Hunan University, Changsha, Hunan 410082, China School of Life Sciences, State Key Laboratory of Medical Genetics, Central South University, Changsha, Hunan 410078, China 3 T.D. and G.Y. contributed equally to this work.
منابع مشابه
Regulation of XIAP Turnover Reveals a Role for USP11 in Promotion of Tumorigenesis
The emerging regulatory role of deubiquitinases (DUBs) has been implicated in various fundamental processes and pathogenesis. To determine the pivotal role that DUBs play in mediating tumorigenesis, we have performed a non-biased screen of 67 human DUBs based on a mammary cell transformation assay. This led to the identification of USP11 as a critical determinant of mammary tumor initiation and...
متن کاملStudy of promoter CpG island hypermethylation of cyclindependent kinase inhibitor gene p21waf1/cip1 on some breast carcinoma cell lines
The p21 belongs to the CIP/KIP family of CDK inhibitors involved in cell cycle arrest at specific stages of the cell cycle progression. DNA methylation is the best studied epigenetic mark that have been evidently associated to chromatin condensation, and repression of gene transcription. The CpG island hypermethylation in promoter region of certain genes occurs in cancer cells and affects tumor...
متن کاملThe Role of chk2 in Response to DNA Damage in Cancer Cells
Accumulation of gene changes and chromosomal instability in response to cellular DNA damage lead to cancer. DNA damage induces cell cycle checkpoints pathways. Checkpoints regulate DNA replication and cell cycle progression, chromatin restructuring, and apoptosis. Checkpoint kinase 2 (chk2) is activated in response to DNA lesions. ATM phosphorylate chk2. The activated Chk2 kinase can phosphoryl...
متن کاملIntermittent hypoxia reduces microglia proliferation and induces DNA damage in vitro
Objective(s):Intermittent hypoxia (IH), caused by obstructive sleep apnea (OSA), could cause hippocampus or neuron damage through multiple signaling pathways, while the underlying mechanisms are still unclear. Thus, the present study aimed to explore the effect of IH on the biological functions of microglia cells. Materials and Methods:Cell proliferation of BV2 cells after exposure to IH were o...
متن کاملDNA Damage and Cellular Stress Responses Uncoupling p53 Functions in Radiation-Induced Intestinal Damage via PUMA and p21
The role of p53 in tissue protection is not well understood. Loss of p53 blocks apoptosis in the intestinal crypts following irradiation but paradoxically accelerates gastrointestinal (GI) damage and death. PUMA and p21 are the major mediators of p53-dependent apoptosis and cell-cycle checkpoints, respectively. To better understand these two arms of p53 response in radiation-induced GI damage, ...
متن کامل