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KAP1 phosphorylation promotes the survival of neural stem cells after ischemia/reperfusion by maintaining the stability of PCNA
CONCLUSIONS: Our findings confirmed that simulated p-KAP1(S824) improved the survival and proliferation of endogenous NSCs. The underlying mechanism is that highly expressed p-KAP1(S824) promotes binding to PCNA, and inhibits the binding of CUL4A to PCNA. This reduced CUL4A-mediated ubiquitination degradation to increase the stability of PCNA and promote the survival and proliferation of NSCs.PMID:35799276 | DOI:10.1186/s13287-022-02962-5
Source: Cell Research - July 7, 2022 Category: Cytology Authors: Wan Wang Tianqing Yan Xinjian Guo Heng Cai Chang Liang Linyan Huang Yanling Wang Ping Ma Suhua Qi Source Type: research

Functional Assessment of Stroke-Induced Regulation of miR-20a-3p and Its Role as a Neuroprotectant
This study identifies and characterizes a specific member of the miR-17-92 cluster, miR-20a-3p, as a possible stroke therapeutic. A comprehensive microRNA screening showed that miR-20a-3p was significantly upregulated in astrocytes of adult female rats, which typically have better stroke outcomes, while it was profoundly downregulated in astrocytes of middle-aged females and adult and middle-aged males, groups that typically have more severe stroke outcomes. Assays using primary human astrocytes and neurons show that miR-20a-3p treatment alters mitochondrial dynamics in both cell types. To assess whether stroke outcomes co...
Source: Cell Research - September 27, 2021 Category: Cytology Authors: Taylor E Branyan Amutha Selvamani Min Jung Park Kriti E Korula Kelby F Kosel Rahul Srinivasan Farida Sohrabji Source Type: research