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USP9X Is Required to Maintain Cell Survival in Response to High-LET Radiation
Ionizing radiation (IR) principally acts through induction of DNA damage that promotes cell death, although the biological effects of IR are more broad ranging. In fact, the impact of IR of higher-linear energy transfer (LET) on cell biology is generally not well understood. Critically, therefore, the cellular enzymes and mechanisms responsible for enhancing cell survival following high-LET IR are unclear. To this effect, we have recently performed siRNA screening to identify deubiquitylating enzymes that control cell survival specifically in response to high-LET α-particles and protons, in comparison to low-LET X-rays an...
Source: Frontiers in Oncology - July 1, 2021 Category: Cancer & Oncology Source Type: research

p21 is Responsible for Ionizing Radiation-induced Bypass of Mitosis
Conclusion Our results indicated that p21 was responsible for the downregulation of G2/M transition regulatory proteins and the bypass of mitosis induced by irradiation. Downregulation of p21 by siRNA resulted in G2-arrested cells entering into mitosis with serious DNA damage. This is the first report on elucidating the role of p21 in the bypass of mitosis.
Source: Biomedical and Environmental Sciences - August 30, 2016 Category: Biomedical Science Source Type: research

p21 is Responsible for Ionizing Radiation-induced Bypass of Mitosis.
CONCLUSION: Our results indicated that p21 was responsible for the downregulation of G2/M transition regulatory proteins and the bypass of mitosis induced by irradiation. Downregulation of p21 by siRNA resulted in G2-arrested cells entering into mitosis with serious DNA damage. This is the first report on elucidating the role of p21 in the bypass of mitosis. PMID: 27554118 [PubMed - in process]
Source: Biomedical and Environmental Sciences : BES - June 30, 2016 Category: Biomedical Science Authors: Zhang XR, Liu YA, Sun F, Li H, Lei SW, Wang JF Tags: Biomed Environ Sci Source Type: research