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Related Experiment Video

Updated: Apr 17, 2026

Assessment of Mitochondrial Fission/Fusion Dynamics in Kidney Proximal Tubular Cells
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Assessment of Mitochondrial Fission/Fusion Dynamics in Kidney Proximal Tubular Cells

Published on: November 14, 2025

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Krüppel-like factor 6 regulates mitochondrial function in the kidney.

Sandeep K Mallipattu, Sylvia J Horne, Vivette D'Agati

    The Journal of Clinical Investigation
    |February 18, 2015
    PubMed
    Summary

    Krüppel-like factor 6 (KLF6) protects kidney podocytes from injury by regulating mitochondrial function. Reduced KLF6 is linked to kidney diseases like FSGS and HIVAN, highlighting its therapeutic potential.

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    Area of Science:

    • Nephrology
    • Molecular Biology
    • Cell Biology

    Background:

    • Mitochondrial dysfunction is implicated in podocyte apoptosis and glomerulosclerosis.
    • The transcription factors governing mitochondrial health during podocyte injury are largely unknown.

    Purpose of the Study:

    • To identify transcription factors regulating mitochondrial function in podocyte injury.
    • To investigate the role of Krüppel-like factor 6 (KLF6) in podocyte apoptosis and kidney disease.

    Main Methods:

    • Podocyte-specific Klf6 deletion in mice.
    • Adriamycin (ADR)-induced kidney injury model.
    • Analysis of KLF6 expression in mouse and human kidney cells/tissues.
    • Promoter analysis and chromatin immunoprecipitation (ChIP) for KLF6 targets.
    • Assessment of mitochondrial function and apoptosis markers.

    Main Results:

    • Podocyte-specific Klf6 deletion exacerbated ADR-induced focal segmental glomerulosclerosis (FSGS).
    • KLF6 expression increased upon ADR exposure, preventing mitochondrial dysfunction and apoptosis.
    • KLF6 directly binds to the promoter of the SCO2 gene, crucial for mitochondrial respiration.
    • Reduced KLF6 was observed in HIV-associated nephropathy (HIVAN) and FSGS patient samples.

    Conclusions:

    • KLF6 is a key regulator of mitochondrial function in podocytes, protecting against apoptosis.
    • KLF6-mediated regulation of SCO2 is vital for maintaining mitochondrial integrity.
    • KLF6 deficiency contributes to podocyte injury in kidney diseases such as FSGS and HIVAN.