中国神经再生研究(英文版) ›› 2026, Vol. 21 ›› Issue (6): 2432-2441.doi: 10.4103/NRR.NRR-D-24-00789

• 原著:脑损伤修复保护与再生 • 上一篇    下一篇

成年哺乳动物前脑神经源性室管膜细胞的异质性:一项全面的细胞图谱研究

  

  • 出版日期:2026-06-15 发布日期:2025-09-19
  • 基金资助:
    国自然重点项目“单细胞转录组解析神经-免疫-血脑屏障互作的分子病理机制”和“上海干细胞临床转化研究院干细胞临床转化研究,上海高校Ⅳ类高峰学科项目”

Heterogeneity of the adult mammalian forebrain neurogenic ependyma: A comprehensive cellular map

Xuejiao Yang1, 2, #, Yuchen Mu1, 2, #, Qianxiang Wu1, 2, Liqiang Zhou1 , Orion R. Fan1, 2, Quan Lin3 , Wenmin Zhu1, 2, *, Yi Eve Sun1, 2, *   

  1. 1 Shanghai Institute of Stem Cell Research and Clinical Translation, East Hospital, Tongji University School of Medicine, Shanghai, China;  2 Stem Cell Translational Research Center, Tongji Hospital, Tongji University School of Medicine, Shanghai, China;  3 Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
  • Online:2026-06-15 Published:2025-09-19
  • Contact: Yi Eve Sun, PhD, yi.eve.sun@gmail.com; Wenmin Zhu, MS, zwm8899@163.com.
  • Supported by:
    This study was supported by the State Key Program of the National Natural Science Foundation of China, No. 82030035 (to YES) and Peak Disciplines (Type IV) of Institutions of Higher Learning in Shanghai (to LZ).

摘要:

哺乳动物前脑室管膜是否含有成年神经干细胞已经争论了20余年。此次实验采用单细胞RNA测序来分析成年小鼠前脑室管膜表面细胞组成,即侧脑室侧壁部分,发现了属于室管膜表面的12种不同细胞亚型。进一步对室管膜表面进行了免疫细胞化学分析,结果显示,CD133阳性多纤毛细胞占室管膜细胞的67.63%,而其余32.37%为CD133阴性细胞。CD133阳性室管膜细胞又可分为FOXJ1+/SOX2+/ACTA2+细胞、FLT1+/CD31+/CLDN5+内皮样细胞、PDGFRB+/VTN+/NG2+周细胞样细胞、内皮-周细胞样细胞和Foxj1+内皮样细胞。CD133阴性室管膜细胞也可进一步分为内皮样细胞、Foxj1+室管膜细胞、Foxj1+内皮样细胞、周细胞样细胞、内皮-周细胞样细胞、VIM+细胞和以上标志物均阴性的细胞。上述结果提示,此次全面分析证实了成年小鼠前脑室管膜表面的异质性,且既往有关成体室管膜细胞是否存在神经干细胞的不同观点是由于不同研究者关注了不同的室管膜细胞群所致。这项研究为临床内源性神经干细胞的探索提供了新的视角,为神经系统疾病的干细胞治疗铺平了道路。

https://orcid.org/0000-0002-1272-3295 (Yi Eve Sun)

关键词: 单细胞RNA测序, 异质性, 神经源性, 室管膜细胞, 神经干细胞, 侧脑室, 免疫细胞化学分析, 神经修复, 内皮样细胞, 周细胞样细胞

Abstract: The presence or absence of adult neural stem cells in the mammalian forebrain ependyma has been debated for two decades. In this study, we performed single-cell RNA sequencing to investigate the cellular composition of the ependymal surface of the adult mouse forebrain using whole mounts of lateral walls of lateral ventricles. We identified 12 different cell subtypes in the ependymal surface. Immunocytochemical analyses revealed that CD133+ multi-ciliated cells comprised 67.6% of ependymal cells, while the remaining 32.4% were CD133– . CD133+ ependymal cells can be further classified into FOXJ1+ /SOX2+ /ACTA2+ cells, FLT1+ /CD31+ /CLDN5+ endothelial-like cells, and PDGFRB+ /VTN+ /NG2+ pericyte-like cells, as well as endothelial–pericyte-like cells and Foxj1+ endotheliallike cells. CD133– ependymal cells can be further divided into endothelial-like cells, Foxj1+ ependymal cells, Foxj1+ endothelial-like cells, pericyte-like cells, endothelial-pericyte-like cells, VIM+ cells, and cells negative for all of these markers. This comprehensive profiling confirms the heterogeneity of the ependymal surface in the adult mouse forebrain. Debate regarding whether adult ependymal cells contain neural stem cells has arisen because different researchers have examined different populations of ependymal cells. Our study provides a new perspective for investigation of clinical endogenous neural stem cells, ultimately paving the way for stem cell therapies in neurological diseases.

Key words: endothelial-like cells, ependymal cells, heterogeneity, immunocytochemical analyses, lateral ventricles, neural repair, neural stem cells, neurogenic, pericyte-like cells, single-cell RNA sequencing