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The integrin repertoire drives YAP-dependent epithelial:stromal interactions during injury of the kidney glomerulus

Author

Listed:
  • Evelyne Huynh-Cong

    (Boston Children’s Hospital
    Harvard Medical School
    for EHC: Evotec)

  • Victoria Driscoll

    (Beth Israel Deaconess Medical Center)

  • Sandrine Ettou

    (Boston Children’s Hospital
    Harvard Medical School)

  • Keith Keller

    (Brigham and Women’s Hospital and Harvard Medical School
    Broad Institute of Harvard and MIT)

  • Amha Atakilit

    (Lung Biology Center, Department of Medicine, University of California San Francisco)

  • Mary E. Taglienti

    (Boston Children’s Hospital)

  • Saurabh Kumar

    (Boston Children’s Hospital
    for SK: University of Massachusetts Chan Medical School)

  • Astrid Weins

    (Brigham and Women’s Hospital and Harvard Medical School)

  • Valerie A. Schumacher

    (Boston Children’s Hospital
    Harvard Medical School
    Beth Israel Deaconess Medical Center
    Harvard Medical School)

  • Jordan A. Kreidberg

    (Boston Children’s Hospital
    Harvard Medical School
    Beth Israel Deaconess Medical Center
    Harvard Medical School)

Abstract

The kidney glomerulus is a filtration barrier in which capillary loop architecture depends on epithelial-stromal interactions between podocytes and mesangial cells. Podocytes are terminally differentiated cells within the glomerulus that express YAP and TAZ. Here we test the hypotheses that YAP and TAZ are required in podocytes to maintain capillary loop architecture and that shifts in the integrin repertoire during podocyte injury affect transcriptional activity of YAP and TAZ. Loss of YAP in podocytes of adult mice renders them more sensitive to injury, whereas loss of both YAP and TAZ in podocytes rapidly compromises the filtration barrier. α3β1 and αvβ5 are two prominent integrins on murine podocytes. Podocyte injury or loss of α3β1 leads to increased abundance of αvβ5 and nuclear localization of YAP. In vitro, blockade of αvβ5 decreases nuclear YAP. Increased αv integrins are found in human kidney disease. Thus, our studies demonstrate the crucial regulatory interplay between cell adhesion and transcriptional regulation as an important determinant of human disease.

Suggested Citation

  • Evelyne Huynh-Cong & Victoria Driscoll & Sandrine Ettou & Keith Keller & Amha Atakilit & Mary E. Taglienti & Saurabh Kumar & Astrid Weins & Valerie A. Schumacher & Jordan A. Kreidberg, 2025. "The integrin repertoire drives YAP-dependent epithelial:stromal interactions during injury of the kidney glomerulus," Nature Communications, Nature, vol. 16(1), pages 1-17, December.
    • Handle: RePEc:nat:natcom:v:16:y:2025:i:1:d:10.1038_s41467-025-58567-y
    DOI: 10.1038/s41467-025-58567-y
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