Upregulation of AEG-1 Involves in Schwann Cell Proliferation and Migration After Sciatic Nerve Crush

详细信息    查看全文

• 作者：Youhua Wang ; Weidong Zhang ; Xudong Zhu ; Yi Wang…
• 关键词：AEG ; 1 ; Schwann cell ; Proliferation ; Migration ; Sciatic nerve crush
• 刊名：Journal of Molecular Neuroscience
• 出版年：2016
• 出版时间：October 2016
• 年：2016
• 卷：60
• 期：2
• 页码：248-257
• 全文大小：7,298 KB
• 刊物主题：Neurosciences; Neurochemistry; Cell Biology; Proteomics; Neurology;
• 出版者：Springer US
• ISSN：1559-1166
• 卷排序：60

文摘

Astrocyte-elevated gene-1 (AEG-1), also known as metadherin (MTDH) and lysine-rich CEACAM1 coisolated (LYRIC), has emerged as an important oncogene that regulates key cellular processes including apoptosis, migration, invasion, proliferation, and differentiation. It was reported that AEG-1 enhanced breast cancer cells migration in a NF-κB-dependent manner. Also, AEG-1 contributed cell proliferation through the PI3K-Akt/cyclin pathway. Besides, AEG-1 is implicated in diverse physiological and pathological diseases of the central nervous system (CNS), such as brain tumors, neuroblastomas, neurodegeneration, and neuronal development. However, the role of AEG-1 in the process of peripheral nervous regeneration after injury remains virtually unknown. In this study, we investigated the spatiotemporal expression of AEG-1 in a rat sciatic nerve crush model. At its peak expression, AEG-1 was expressed mainly in Schwann cells of the distal sciatic nerve segment from injury, but had few colocalizations in axons. Besides, the peak expression of AEG-1 was in parallel with proliferating cell nuclear antigen (PCNA). In vitro, we detected the increased expression of AEG-1 during the process of tumor necrosis factor α (TNF-α)-induced Schwann cell proliferation. Meanwhile, interference of AEG-1 inhibited both proliferation and migration of Schwann cells. In conclusion, we speculated that AEG-1 is involved in biochemical and physiological responses after sciatic nerve crush (SNC).