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- W2885365510 abstract "Summary Objective Intracranial aneurysm (IA) is a life threatening cerebrovascular disease characterized by phenotypic modulation of vascular smooth muscle cells (VSMCs) and loss of vessel cells. In addition to environmental factors, genetic factors have been proposed to be a critical factor in the onset and progression of IA. The present study investigates the effects of serine‐arginine protein kinase 1 (SRPK1) on VSMC proliferation and apoptosis both in vivo and in vitro, as well as its role in vascular remodeling in vivo through PI3 K/Akt signaling in IA. Methods Differentially expressed genes related to IA were initially identified using microarray analysis. Immunohistochemistry was conducted to determine SRPK1 expression in the vascular walls in IA and normal cerebral vascular walls. TUNEL staining were applied to observe cell apoptosis patterns of VSMCs. VSMC proliferation and apoptosis in vitro were detected by cell counting kit‐8 (CCK8) assay and flow cytometry. The expressions of SRPK1, PI3 K/Akt signaling pathway‐ and apoptosis‐related genes were evaluated by RT‐qPCR and Western blot analysis. Results Microarray data of GSE36791 and GSE54083 were analyzed to determine the selection of SRPK1 gene. The vascular walls in IA rat models produced high levels of SRPK1 expression and an activated PI3 K/Akt signaling pathway. VSMCs treated with siRNA‐SRPK1 exhibited enhanced cell proliferation, repressed cell apoptosis, and increased vascular remodeling, all of which suggest the inhibition of the PI3 K/AKT pathway. Notably, PI3 K/AKT pathway reversed the effect of SRPK1 silencing. Conclusion Our results show that siRNA‐mediated silencing of SRPK1 gene inhibits VSMC apoptosis, and increases VSMCs proliferation and vascular remodeling in IA via the PI3 K/Akt signaling pathway. Our findings provide a novel intervention target for the molecular treatment of IA." @default.
- W2885365510 created "2018-08-22" @default.
- W2885365510 creator A5045969980 @default.
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- W2885365510 date "2018-08-12" @default.
- W2885365510 modified "2023-10-14" @default.
- W2885365510 title "SRPK1 gene silencing promotes vascular smooth muscle cell proliferation and vascular remodeling via inhibition of the PI3K/Akt signaling pathway in a rat model of intracranial aneurysms" @default.
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- W2885365510 doi "https://doi.org/10.1111/cns.13043" @default.
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