The replacement of damaged cardiomyocytes by extracellular matrix-producing fibroblasts underpins adverse remodeling in the failing heart. New research finds that MHC class II-dependent fibroblast–CD4+ T cell interactions in the myocardium lead to fibroblast activation and exacerbate fibrotic remodeling of the myocardium.
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We thank N. Pikor for critical reading of the manuscript.
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C.G.C., C.P.S. and B.L. are co-founders and shareholders of Stromal Therapeutics.
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Perez-Shibayama, C., Gil-Cruz, C. & Ludewig, B. Fibroblasts tune myocardial inflammation and remodeling. Nat Cardiovasc Res 1, 694–695 (2022). https://doi.org/10.1038/s44161-022-00119-4
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DOI: https://doi.org/10.1038/s44161-022-00119-4