ArticleScience advances2024
INF2 mutations cause kidney disease through a gain-of-function mechanism.
Article in Science advances, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed.
- Genetic insights into congenital and infantile nephrotic syndrome: predicting severity and informing care.Pediatric nephrology (Berlin, Germany) · 2026Review
- Regulation of the formin INF2 by actin monomers and calcium/calmodulin.The Journal of cell biology · 2026Article
- Structural and functional dissection of the WH2/DAD motif of INF2, a formin linked to human inherited degenerative disorders.The FEBS journal · 2026Article
- Advances and continuing challenges in differentiation of stem cells to human kidney tissue.Nature reviews. Nephrology · 2026Review
- Podocytopathies.Nature reviews. Disease primers · 2025Review
- Patient-specific hiPSC-Podocytes as an in vitro model of genetic FSGS.Scientific reports · 2025Article
- When should the nephrologist think about genetics in patients with glomerular diseases?Clinical kidney journal · 2025Review
- Nerve Enlargement in Patients with INF2 Variants Causing Peripheral Neuropathy and Focal Segmental Glomerulosclerosis.Biomedicines · 2025Article
- Co-occurrence of Charcot-Marie-Tooth disease type 1 and glomerulosclerosis in a patient with a de novo INF2 variant.BMC nephrology · 2024Article
Corrections and comments
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Authors and funding
10 authors.
Funding
Abstract
Heterozygosity for inverted formin-2 (INF2) mutations causes focal segmental glomerulosclerosis (FSGS) with or without Charcot-Marie-Tooth disease. A key question is whether the disease is caused by gain-of-function effects on INF2 or loss of function (haploinsufficiency). Despite established roles in multiple cellular processes, neither INF2 knockout mice nor mice with a disease-associated point mutation display an evident kidney or neurologic phenotype. Here, we compared responses to puromycin aminonucleoside (PAN)-induced kidney injury between INF2 R218Q and INF2 knockout mice. R218Q INF2 mice are susceptible to glomerular disease, in contrast to INF2 knockout mice. Colocalization, coimmunoprecipitation analyses, and cellular actin measurements showed that INF2 R218Q confers a gain-of-function effect on the actin cytoskeleton. RNA expression analysis showed that adhesion and mitochondria-related pathways were enriched in the PAN-treated R218Q mice. Both podocytes from INF2 R218Q mice and human kidney organoids with an INF2 mutation (S186P) recapitulate adhesion and mitochondrial phenotypes. Thus, gain-of-function mechanisms drive INF2-related FSGS and explain this disease's autosomal dominant inheritance.
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