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논문 기본 정보

자료유형
학술저널
저자정보
Ming Yue (Department of Applied Psychology College of Teacher Education Qiqihar University Qiqihar China) Deng Zhihui (Institute of Medicine and Pharmacy Qiqihar Medical University Qiqihar China) Tian Xianhua (Department of Applied Psychology College of Teacher Education Qiqihar University Qiqihar China) Jia Yuerong (Department of Applied Psychology College of Teacher Education Qiqihar University Qiqihar China) Ning Meng (Department of Applied Psychology College of Teacher Education Qiqihar University Qiqihar China) Cheng Shuhua (Department of Applied Psychology College of Teacher Education Qiqihar University Qiqihar China)
저널정보
대한신경정신의학회 PSYCHIATRY INVESTIGATION PSYCHIATRY INVESTIGATION 제19권 제10호
발행연도
2022.10
수록면
771 - 787 (17page)
DOI
10.30773/pi.2021.0370

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Objective Hippocampal neuron apoptosis contributes to autism, while METTL3 has been documented to possess great potentials in neuron apoptosis. Our study probed into the role of METTL3 in neuron apoptosis in autism and to determine the underlying mechanism.Methods Bioinformatics analysis was used to analyze expressed genes in autism samples. Institute of Cancer Research mice were treated with valproic acid to develop autism models. The function of METTL3 in autism-like symptoms in mice was analyzed with behavioral tests and histological examination of their hippocampal tissues. Primary mouse hippocampal neurons were extracted for in vitro studies. Downstream factors of METTL3 were explored and validated.Results METTL3, MALAT1, and Wnt/β-catenin signaling were downregulated, while SFRP2 was upregulated in the hippocampal tissues of a mouse model of autism. METTL3 stabilized MALAT1 expression by promoting m6A modification of MALAT1. MALAT1 promoted SFRP2 methylation and led to reduced SFRP2 expression by recruiting DNMT1, DNMT3A, and DNMT3B to the promoter region of SFRP2. Furthermore, SFRP2 facilitated activation of the Wnt/β-catenin signaling. By this mechanism, METTL3 suppressed autism-like symptoms and hippocampal neuron apoptosis.Conclusion This research suggests that METTL3 can reduce autism-like symptoms and hippocampal neuron apoptosis by regulating the MALAT1/SFRP2/Wnt/β-catenin axis.

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