中国神经再生研究(英文版) ›› 2025, Vol. 20 ›› Issue (1): 188-190.doi: 10.4103/NRR.NRR-D-23-02069

• 观点:神经损伤修复保护与再生 • 上一篇    下一篇

N-钙粘蛋白在大脑皮层发育中的作用:与膜运输和肌动蛋白细胞骨架调控的协同作用

  

  • 出版日期:2025-01-15 发布日期:2025-01-15

Roles of N-cadherin in cerebral cortical development: cooperation with membrane trafficking and actin cytoskeletal regulation

Shiho Ito, Takeshi Kawauchi*   

  1. Department of Adaptive and Maladaptive Responses in Health and Disease, Graduate School of Medicine, Kyoto University, Kyoto, Japan (Ito S, Kawauchi T)
    Department of Physiology, Keio University School of Medicine, Tokyo, Japan (Kawauchi T)
  • Online:2025-01-15 Published:2025-01-15
  • Contact: Takeshi Kawauchi, PhD, kawauchi.takeshi.i92@kyoto-u.jp or takeshi-kawauchi@umin.ac.jp.
  • Supported by:
    The authors’ research group was funded by JSPS KAKENHI Grant Numbers JP26290015 and JP21H02655 (to TK) from Ministry of Education, Culture, Sports, Science, and Technology of Japan (MEXT).

摘要: https://orcid.org/0000-0002-8650-4474 (Takeshi Kawauchi)

Abstract: Cell adhesion plays pivotal roles in the morphogenesis of multicellular organisms. Epithelial cells form several types of cell-to-cell adhesion, including zonula occludens (tight junctions), zonula adhaerens (adherens junctions), and macula adhaerens (desmosomes). Although these adhesion complexes are basically observed only in epithelial cells, cadherins, which are the major cell adhesion molecules of adherens junctions, are expressed in both epithelial and non-epithelial tissues, including neural tissues (Kawauchi, 2012). The cadherin superfamily consists of more than 100 members, but classic cadherins, such as E-cadherin (Cdh1), N-cadherin (Cdh2), and R-cadherin (Cdh4), amount to about 20 members. Classic cadherins are single transmembrane proteins, which basically exhibit homophilic adhesion in an extracellular Ca2+-dependent manner. The cell adhesion activity is also regulated intracellularly. The intracellular domain of classic cadherins binds to β-catenin, which interacts with α-catenin (Figure 1). Because α-catenin binds to an actin-binding protein, vinculin, the catenin complex mediates the interaction between classic cadherins and the actin cytoskeleton, which stabilizes cell-to-cell adhesion (Kawauchi, 2012).