Nectin and afadin: novel organizers of intercellular junctions

被引:477
作者
Takai, Y [1 ]
Nakanishi, H [1 ]
机构
[1] Osaka Univ, Grad Sch Med, Fac Med, Dept Mol Biol & Biochem, Suita, Osaka 5650871, Japan
关键词
nectin; afadin; adherens junctions; tight junctions; puncta adherentia junctions; Sertoli-cell-spermatid junctions;
D O I
10.1242/jcs.00167
中图分类号
Q2 [细胞生物学];
学科分类号
071009 ; 090102 ;
摘要
The cadherin superfamily plays key roles in intercellular adhesion. An emerging intercellular adhesion system, consisting of nectin and afadin, also has roles in organization of a variety of intercellular junctions either in cooperation with, or independently of, cadherin. Nectin is a Ca2+-independent immunoglobulin-like intercellular adhesion molecule, and afadin is a nectin- and actin-filament-binding protein that connects nectin to the actin cytoskeleton. This novel intercellular adhesion system has roles in the organization of E-cadherin-based adherens junctions and claudin-based tight junctions in epithelial cells. The adhesion system is furthermore involved in the formation of synapses in neurons and the organization of heterotypic junctions between Sertoli cells and spermatids in the testis.
引用
收藏
页码:17 / 27
页数:11
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