Sagar, Amin and Arif, Ehtesham and Solanki, Ashish Kumar and Srivastava, Pankaj and Janech, Michael G. and Kim, Seok-Hyung and Lipschutz, Joshua H. and Kwon, Sang-Ho and Ashish, . and Nihalani, Deepak (2017) Targeting Neph1 and ZO-1 protein-protein interaction in podocytes prevents podocyte injury and preserves glomerular filtration function. Scientific Reports, 7. ISSN 2045-2322
Full text not available from this repository. (Request a copy)Abstract
Targeting protein-protein interaction (PPI) is rapidly becoming an attractive alternative for drug development. While drug development commonly involves inhibiting a PPI, in this study, we show that stabilizing PPI may also be therapeutically beneficial. Junctional proteins Neph1 and ZO-1 and their interaction is an important determinant of the structural integrity of slit diaphragm, which is a critical component of kidney's filtration system. Since injury induces loss of this interaction, we hypothesized that strengthening this interaction may protect kidney's filtration barrier and preserve kidney function. In this study, Neph1-ZO-1 structural complex was screened for the presence of small druggable pockets formed from contributions from both proteins. One such pocket was identified and screened using a small molecule library. Isodesmosine (ISD) a rare naturally occurring amino acid and a biomarker for pulmonary arterial hypertension was selected as the best candidate and to establish the proof of concept, its ability to enhance Neph1-CD and ZO-1 binding was tested. Results from biochemical binding analysis showed that ISD enhanced Neph1 and ZO-1 interaction under in vitro and in vivo conditions. Importantly, ISD treated podocytes were resistant to injury-induced loss of transepithelial permeability. Finally, mouse and zebrafish studies show that ISD protects from injury-induced renal damage.
| Item Type: | Article |
|---|---|
| Additional Information: | Open Access |
| Subjects: | Q Science > QR Microbiology |
| Depositing User: | Dr. K.P.S.Sengar |
| Date Deposited: | 28 Mar 2018 05:42 |
| Last Modified: | 31 Oct 2018 06:32 |
| URI: | http://crdd.osdd.net/open/id/eprint/2059 |
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