Integrin alpha6 maintains the structural integrity of the kidney collecting system.
Integrin alpha6 maintains the structural integrity of the kidney collecting system.
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整合素 α6 维持肾集合系统的结构完整性。
DOI:
10.1016/j.matbio.2016.12.003
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发表时间:
2017
期刊:
影响因子:
--
通讯作者:
Zent,Roy
中科院分区:
文献类型:
--
作者:
Viquez,OlgaM;Yazlovitskaya,EugeniaM;Tu,Tianxiang;Mernaugh,Glenda;Secades,Pablo;McKee,KarenK;Georges-Labouesse,Elizabeth;DeArcangelis,Adele;Quaranta,Vito;Yurchenco,Peter;Gewin,LeslieC;Sonnenberg,Arnoud;Pozzi,Ambra;Zent,Roy
Laminins are a major constituent of the basement membranes of the kidney collecting system. Integrins, transmembrane receptors formed by non-covalently bound α and β subunits, serve as laminin receptors, but their role in development and homeostasis of the kidney collecting system is poorly defined. Integrin α3β1, one of the major laminin receptors, plays a minor role in kidney collecting system development, while the role of α6 containing integrins (α6β1 and α6β4), the other major laminin receptors, is unknown. Patients with mutations in α6 containing integrins not only develop epidermolysis bullosa, but also have abnormalities in the kidney collecting system. In this study, we show that selectively deleting the α6 or β4 integrin subunits at the initiation of ureteric bud development in mice does not affect morphogenesis. However, the collecting system becomes dilated and dysmorphic as the mice age. The collecting system in both null genotypes was also highly susceptible to unilateral ureteric obstruction injury with evidence of excessive tubule dilatation and epithelial cell apoptosis. Mechanistically, integrin α6-null collecting duct cells are unable to withstand high mechanical force when adhered to laminin. Thus, we conclude that α6 integrins are important for maintaining the integrity of the kidney collecting system by enhancing tight adhesion of the epithelial cells to the basement membrane. These data give a mechanistic explanation for the association between kidney collecting system abnormalities in patients and epidermolysis bullosa.
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DOI:
10.1080/21548331.1979.11707578
发表时间:
1979
期刊:
Hospital practice
影响因子:
--
作者:
P. Y. Paterson;E. Day
通讯作者:
E. Day
DOI:
10.1073/pnas.87.10.3929
发表时间:
1990-05-01
影响因子:
11.1
作者:
ZHOU, JY;NORMAN, AW;KOEFFLER, HP
通讯作者:
KOEFFLER, HP
DOI:
--
发表时间:
1984
期刊:
Progress in clinical and biological research
影响因子:
--
作者:
H. Lassmann;G. Suchanek;K. Kitz;H. Stemberger;B. Schwerer;H. Bernheimer
通讯作者:
H. Bernheimer
影响因子:
4.8
作者:
J. Abe;Y. Takita;T. Nakano;C. Miyaura;T. Suda;Y. Nishii
通讯作者:
Y. Nishii
影响因子:
11.2
作者:
T. Kasukabe;Y. Honma;M. Hozumi;T. Suda;Y. Nishii
通讯作者:
Y. Nishii