Neph1 and nephrin interaction in the slit diaphragm is an important determinant of glomerular permeability.
Neph1 and nephrin interaction in the slit diaphragm is an important determinant of glomerular permeability.
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Neph1 和 nephrin 在裂隙隔膜中的相互作用是肾小球通透性的重要决定因素。
DOI:
10.1172/jci18242
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发表时间:
2003
期刊:
影响因子:
--
通讯作者:
Chugh,SumantS
中科院分区:
文献类型:
--
作者:
Liu,Gang;Kaw,Beenu;Kurfis,Jayson;Rahmanuddin,Syed;Kanwar,YashpalS;Chugh,SumantS
Neph1-deficient mice develop nephrotic syndrome at birth, indicating the importance of this protein in the development of a normal glomerular filtration barrier. While the precise subcellular localization of Neph1 remains unknown, its relationship with other components of the glomerular filtration barrier is of great interest in this field. In this paper, we localize the expression of Neph1 to the glomerular slit diaphragm by immunogold electron microscopy in rodents and describe its direct interaction with two other components of the slit diaphragm, nephrin and ZO-1. Both native and recombinant Neph1 associate with each other as dimers and multimers and interact with nephrin via their extracellular segments. Disruption of the Neph1-nephrin interaction in vivo by injecting combinations of individual subnephritogenic doses of anti-Neph1 and anti-nephrin results in complement- and leukocyte-independent proteinuria with preserved foot processes. This disruption modestly reduces Neph1 and nephrin protein expression in podocytes and dramatically reduces ZO-1 protein expression via the interaction of ZO-1 PDZ domains with the cytoplasmic tail of Neph1, independent of changes in mRNA expression of all three genes. The interaction between nephrin and Neph1 is specific and not shared by either protein with P-cadherin, another integral slit diaphragm protein. The interaction between nephrin and Neph1 therefore appears to be an important determinant of glomerular permeability.
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影响因子:
5.1
作者:
S. E. Brodie
通讯作者:
S. E. Brodie
影响因子:
15.3
作者:
D. Abrahamson;J. Caulfield
通讯作者:
J. Caulfield
影响因子:
19.6
作者:
S. Mentzel;J. V. van Son;H. Dijkman;J. Wetzels;K. Assmann
通讯作者:
K. Assmann
DOI:
10.1172/jci13954
发表时间:
2002
期刊:
The Journal of clinical investigation
影响因子:
--
作者:
Miner,JeffreyH;Morello,Roy;Andrews,KayaL;Li,Cong;Antignac,Corinne;Shaw,AndreyS;Lee,Brendan
通讯作者:
Lee,Brendan
DOI:
10.1097/01.asn.0000057853.05686.89
发表时间:
2003-04-01
影响因子:
13.6
作者:
Gerke, P;Huber, TB;Walz, G
通讯作者:
Walz, G