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miR-103-3p targets ndel1 to regulate neural stem cell proliferation and differentiation

Neural Regeneration Research 2022年第2期17卷 401-408页

作者： Wen Li Shan-Shan Wang Bo-Quan Shan Jian-Bing Qin He-Yan Zhao Mei-Ling Tian Hui He Xiang Cheng Xin-Hua Zhang Guo-Hua Jin Department of Human Anatomy Institute of NeurobiologyNantong UniversityNantongJiangsu ProvinceChina Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education NantongJiangsu ProvinceChina Co-Innovation Center of Neuroregeneration Nantong UniversityNantongJiangsu ProvinceChina

The regulation of adult neural stem cells(NSCs) is critical for lifelong neurogenesis. MicroRNAs(miRNAs) are a type of small, endogenous RNAs that regulate gene expression post-transcriptionally and influence signaling networks responsible for several cellular processes. In this study, mi R-103-3 p was transfected into neural stem cells derived from embryonic hippocampal neural stem cells. The results showed that mi R-103-3 p suppressed neural stem cell proliferation and differentiation, and promoted apoptosis. In addition, mi R-103-3 p negatively regulated Nud E neurodevelopment protein 1-like 1(ndel1) expression by binding to the 3′ untranslated region of ndel1. Transduction of neural stem cells with a lentiviral vector overexpressing ndel1 significantly increased cell proliferation and differentiation, decreased neural stem cell apoptosis, and decreased protein expression levels of Wnt3 a, β-catenin, phosphor-GSK-3β, LEF1, c-myc, c-Jun, and cyclin D1, all members of the Wnt/β-catenin signaling pathway. These findings suggest that ndel1 is a novel mi R-103-3 p target and that mi R-103-3 p acts by suppressing neural stem cell proliferation and promoting apoptosis and differentiation. This study was approved by the Animal Ethics Committee of Nantong University, China(approval No. 20200826-003) on August 26, 2020.

关键词： apoptosis canonical Wnt pathway differentiation MiR-103-3p ndel1 neural stem cells neurogenesis proliferation

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