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Mutations in the gene that encodes the F-Actin binding protein anillin cause FSGS

Gbadegesin RA, Hall G, Adeyemo A, Hanke N, Tossidou I, Burchette J, Wu G, Homstad A, Sparks MA, Gomez J, Jiang R, Alonso A, Lavin P, Conlon P, Korstanje R, Stander MC, Shamsan G, Barua M, Spurney R, Singhal PC, Kopp JB, Haller H, Howell D, Pollak MR, Shaw AS, Schiffer M, Winn MP (2014)

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Publication Type: Journal article

Publication year: 2014

Journal

Book Volume: 25

Pages Range: 1991-2002

Journal Issue: 9

DOI: 10.1681/ASN.2013090976

Abstract

FSGS is characterized by segmental scarring of the glomerulus and is a leading cause of kidney failure. Identification of genes causing FSGS has improved our understanding of disease mechanisms and points to defects in the glomerular epithelial cell, the podocyte, as a major factor in disease pathogenesis. Using a combination of genome-wide linkage studies and whole-exome sequencing in a kindred with familial FSGS, we identified a missense mutation R431C in anillin (ANLN), an F-actin binding cell cycle gene, as a cause of FSGS. We screened 250 additional families with FSGS and found another variant, G618C, that segregates with disease in a second family with FSGS. We demonstrate upregulation of anillin in podocytes in kidney biopsy specimens from individuals with FSGS and kidney samples from a murine model of HIV-1-associated nephropathy. Overexpression of R431C mutant ANLN in immortalized human podocytes results in enhanced podocyte motility. The mutant anillin displays reduced binding to the slit diaphragm-associated scaffold protein CD2AP. Knockdown of the ANLN gene in zebrafish morphants caused a loss of glomerular filtration barrier integrity, podocyte foot process effacement, and an edematous phenotype. Collectively, these findings suggest that anillin is important in maintaining the integrity of the podocyte actin cytoskeleton.

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APA:

Gbadegesin, R.A., Hall, G., Adeyemo, A., Hanke, N., Tossidou, I., Burchette, J.,... Winn, M.P. (2014). Mutations in the gene that encodes the F-Actin binding protein anillin cause FSGS. Journal of the American Society of Nephrology, 25(9), 1991-2002. https://doi.org/10.1681/ASN.2013090976

MLA:

Gbadegesin, Rasheed A., et al. "Mutations in the gene that encodes the F-Actin binding protein anillin cause FSGS." Journal of the American Society of Nephrology 25.9 (2014): 1991-2002.

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