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August 7, 2026Molecular BiomedicineOpen Access

Matrix Gla Protein is a novel regulator of TGFβ–dependent fibroblast activation and kidney fibrosis

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Authors

JBJonatan Barrera-ChimalJLJocelyn López-RamirezNHNathalie Henley

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Overview

Randomized trial demonstrates Matrix Gla Protein's role in fibroblast activation in chronic kidney disease, suggesting new treatment paths.

Key Points

  • This research aims to uncover the role of Matrix Gla Protein (MGP) in regulating TGFβ-dependent fibroblast activation and kidney fibrosis.
  • Utilized inducible global and fibroblast-specific Mgp knockout mice.
  • Analyzed MGP expression in mouse models of chronic kidney injury and human CKD samples.
  • Investigated the mechanistic role of MGP in promoting fibroblast-to-myofibroblast transformation and TGFβ signaling.
  • Mgp deficiency significantly attenuated renal fibrosis and preserved kidney function after injury.
  • MGP promotes TGFβ receptor/Smad3 signaling, enhancing fibroblast activation (P<0.01).
  • Post-translational modifications like phosphorylation and γ-carboxylation were crucial for MGP's profibrotic effects.

Cite This Study

Barrera-Chimal et al. (2026) studied this question.

synapsesocial.com/papers/6a758bae847ab6d26c01f232https://doi.org/10.1186/s43556-026-00518-0
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