Follistatin-Like-1 (FSTL1) Is a Fibroblast-Derived Growth Factor That Contributes to Progression of Chronic Kidney Disease

Overview

Journal Int J Mol Sci

Publisher MDPI

Specialties Biochemistry
Chemistry
Molecular Biology

Date 2021 Sep 10

PMID 34502419

Citations 7

Authors

Nicholas A Maksimowski

Xuewen Song

Eun Hui Bae

Heather Reich

Rohan John

York Pei

James W Scholey

Nephrotic Syndrome Study Network Neptune

Affiliations

Soon will be listed here.

Abstract

Our understanding of the mechanisms responsible for the progression of chronic kidney disease (CKD) is incomplete. Microarray analysis of kidneys at 4 and 7 weeks of age in mice, a model of progressive nephropathy characterized by proteinuria, interstitial fibrosis, and inflammation, revealed that Follistatin-like-1 () was one of only four genes significantly overexpressed at 4 weeks of age. mRNA levels for the receptors, and , increased in both mice and mice subjected to unilateral ureteral obstruction (UUO). RNAscope (Advanced Cell Diagnostics, Newark CA, USA) localized to interstitial cells, and in silico analysis of single cell transcriptomic data from human kidneys showed confined to interstitial fibroblasts/myofibroblasts. In vitro, FSTL1 activated AP1 and NFκB, increased collagen I (COL1A1) and interleukin-6 (IL6) expression, and induced apoptosis in cultured kidney cells. expression in the NEPTUNE cohort of humans with focal segmental glomerulosclerosis (FSGS), membranous nephropathy (MN), and IgA nephropathy (IgAN) was positively associated with age, eGFR, and proteinuria by multiple linear regression, as well as with interstitial fibrosis and tubular atrophy. Clinical disease progression, defined as dialysis or a 40 percent reduction in eGFR, was greater in patients with high baseline mRNA levels. is a fibroblast-derived cytokine linked to the progression of experimental and clinical CKD.

Citing Articles

Renal tubular epithelial-derived follistatin-like 1 protects against UUO-induced renal fibrosis in mice via inhibiting NF-κB-mediated epithelial inflammation.

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