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Xu X, Liu XQ, Liu XL, Wang X, Zhang WD, Huang XF, Jia FY, Kong P, Han M. SM22α Deletion Contributes to Neurocognitive Impairment in Mice through Modulating Vascular Smooth Muscle Cell Phenotypes. Int J Mol Sci 2023; 24:ijms24087117. [PMID: 37108281 PMCID: PMC10138350 DOI: 10.3390/ijms24087117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 04/04/2023] [Accepted: 04/05/2023] [Indexed: 04/29/2023] Open
Abstract
Considerable evidence now indicates that cognitive impairment is primarily a vascular disorder. The depletion of smooth muscle 22 alpha (SM22α) contributes to vascular smooth muscle cells (VSMCs) switching from contractile to synthetic and proinflammatory phenotypes in the context of inflammation. However, the role of VSMCs in the pathogenesis of cognitive impairment remains undetermined. Herein, we showed a possible link between VSMC phenotypic switching and neurodegenerative diseases via the integration of multi-omics data. SM22α knockout (Sm22α-/-) mice exhibited obvious cognitive impairment and cerebral pathological changes, which were visibly ameliorated by the administration of AAV-SM22α. Finally, we confirmed that SM22α disruption promotes the expression of SRY-related HMG-box gene 10 (Sox10) in VSMCs, thereby aggravating the systemic vascular inflammatory response and ultimately leading to cognitive impairment in the brain. Therefore, this study supports the idea of VSMCs and SM22α as promising therapeutic targets in cognitive impairment to improve memory and cognitive decline.
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Affiliation(s)
- Xin Xu
- Department of Biochemistry and Molecular Biology, College of Basic Medicine, Hebei Medical University, Shijiazhuang 050017, China
- Key Laboratory of Neural and Vascular Biology of Ministry of Education, Shijiazhuang 050017, China
- Key Laboratory of Medical Biotechnology of Hebei Province, Hebei Medical University, Shijiazhuang 050017, China
| | - Xiao-Qin Liu
- Department of Biochemistry and Molecular Biology, College of Basic Medicine, Hebei Medical University, Shijiazhuang 050017, China
- Key Laboratory of Neural and Vascular Biology of Ministry of Education, Shijiazhuang 050017, China
- Key Laboratory of Medical Biotechnology of Hebei Province, Hebei Medical University, Shijiazhuang 050017, China
| | - Xin-Long Liu
- Department of Biochemistry and Molecular Biology, College of Basic Medicine, Hebei Medical University, Shijiazhuang 050017, China
- Key Laboratory of Neural and Vascular Biology of Ministry of Education, Shijiazhuang 050017, China
- Key Laboratory of Medical Biotechnology of Hebei Province, Hebei Medical University, Shijiazhuang 050017, China
| | - Xu Wang
- Department of Biochemistry and Molecular Biology, College of Basic Medicine, Hebei Medical University, Shijiazhuang 050017, China
- Key Laboratory of Neural and Vascular Biology of Ministry of Education, Shijiazhuang 050017, China
- Key Laboratory of Medical Biotechnology of Hebei Province, Hebei Medical University, Shijiazhuang 050017, China
| | - Wen-Di Zhang
- Department of Biochemistry and Molecular Biology, College of Basic Medicine, Hebei Medical University, Shijiazhuang 050017, China
- Key Laboratory of Neural and Vascular Biology of Ministry of Education, Shijiazhuang 050017, China
- Key Laboratory of Medical Biotechnology of Hebei Province, Hebei Medical University, Shijiazhuang 050017, China
| | - Xiao-Fu Huang
- Department of Biochemistry and Molecular Biology, College of Basic Medicine, Hebei Medical University, Shijiazhuang 050017, China
- Key Laboratory of Neural and Vascular Biology of Ministry of Education, Shijiazhuang 050017, China
- Key Laboratory of Medical Biotechnology of Hebei Province, Hebei Medical University, Shijiazhuang 050017, China
| | - Fang-Yue Jia
- Department of Biochemistry and Molecular Biology, College of Basic Medicine, Hebei Medical University, Shijiazhuang 050017, China
- Key Laboratory of Neural and Vascular Biology of Ministry of Education, Shijiazhuang 050017, China
- Key Laboratory of Medical Biotechnology of Hebei Province, Hebei Medical University, Shijiazhuang 050017, China
| | - Peng Kong
- Department of Biochemistry and Molecular Biology, College of Basic Medicine, Hebei Medical University, Shijiazhuang 050017, China
- Key Laboratory of Neural and Vascular Biology of Ministry of Education, Shijiazhuang 050017, China
- Key Laboratory of Medical Biotechnology of Hebei Province, Hebei Medical University, Shijiazhuang 050017, China
| | - Mei Han
- Department of Biochemistry and Molecular Biology, College of Basic Medicine, Hebei Medical University, Shijiazhuang 050017, China
- Key Laboratory of Neural and Vascular Biology of Ministry of Education, Shijiazhuang 050017, China
- Key Laboratory of Medical Biotechnology of Hebei Province, Hebei Medical University, Shijiazhuang 050017, China
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