ArticleDisease models & mechanisms2023
APOL1-G2 accelerates nephrocyte cell death by inhibiting the autophagy pathway.
Article in Disease models & mechanisms, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed, 10 citations in OpenAlex.
- Elevated Piezo levels cause structural and functional alterations inLife science alliance · 2026Article
- APOL1 plasma membrane pools resist rapid protein degradation.Scientific reports · 2026Article
- Sodium-glucose co-transporter inhibitors for APOL1 kidney disease: A call for studies.International urology and nephrology · 2025Review
- HIV-1 Nef synergizes with APOL1-G1 to induce nephrocyte cell death in HIV-related kidney diseases.Disease models & mechanisms · 2025Article
- Review
- Piezo, Nephrocyte Function, and Slit Diaphragm Maintenance in Drosophila.Journal of the American Society of Nephrology : JASN · 2025Article
- The Janus-faced functions of Apolipoproteins L in membrane dynamics.Cellular and molecular life sciences : CMLS · 2024Article
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Authors and funding
6 authors at 2 institutions in 1 country.
Funding
Abstract
People of African ancestry who carry the APOL1 risk alleles G1 or G2 are at high risk of developing kidney diseases through not fully understood mechanisms that impair the function of podocytes. It is also not clear whether the APOL1-G1 and APOL1-G2 risk alleles affect these cells through similar mechanisms. Previously, we have developed transgenic Drosophila melanogaster lines expressing either the human APOL1 reference allele (G0) or APOL1-G1 specifically in nephrocytes, the cells homologous to mammalian podocytes. We have found that nephrocytes that expressed the APOL1-G1 risk allele display accelerated cell death, in a manner similar to that of cultured human podocytes and APOL1 transgenic mouse models. Here, to compare how the APOL1-G1 and APOL1-G2 risk alleles affect the structure and function of nephrocytes in vivo, we generated nephrocyte-specific transgenic flies that either expressed the APOL1-G2 or both G1 and G2 (G1G2) risk alleles on the same allele. We found that APOL1-G2- and APOL1-G1G2-expressing nephrocytes developed more severe changes in autophagic pathways, acidification of organelles and the structure of the slit diaphragm, compared to G1-expressing nephrocytes, leading to their premature death. We conclude that both risk alleles affect similar key cell trafficking pathways, leading to reduced autophagy and suggesting new therapeutic targets to prevent APOL1 kidney diseases.
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