Ezrin, a novel marker of ependymal cells, can be used to demonstrate their proliferation regulation after spinal cord injury in mice

Autor: Lin Zhang, Yao-Mei Xu, Ming-Ming Bian, Hua-Zheng Yan, Jian-Xiong Gao, Qian-Hui Bao, Yu-Qing Chen, Shu-Qin Ding, Rui Wang, Nan Zhang, Jian-Guo Hu, He-Zuo Lü
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Neurobiology of Disease, Vol 203, Iss , Pp 106746- (2024)
Druh dokumentu: article
ISSN: 1095-953X
DOI: 10.1016/j.nbd.2024.106746
Popis: Ependymal cells (EpCs), as a potential stem cell niche, have gained interest for their potential in vivo stem cell therapy for spinal cord injury (SCI). Heterogeneity of spinal EpCs may contribute to differences in the ability of spinal EpCs to proliferate, differentiate and transition after injury, while there is limited understanding of the regulation of these events. Our research found that ezrin (Ezr) was expressed highly in EpCs of the spinal cord, and its upregulation rapidly occurred after injury (6 h). It remained consistently highly expressed in proliferating EpCs, this occurs before pathological accumulation of it occurs in other glial and immune-related cells. Differential expression of Ezr, Arg3, Pvalb, Ccnd1, and Gmpr characterized distinct responses of EpCs to injury activity. Also, we uncovered the dynamic regulatory behavior of immature EpCs after injury. In contrast to constitutive expression in parenchymal tissues, injury factors upregulated guanosine monophosphate reductase (Gmpr) in arrested EpCs, unveiling a distinctive mechanism to regulate proliferation in EpCs following spinal cord injury.
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