Proline/serine-rich coiled-coil protein 1 alleviates pyroptosis in murine bone marrow-derived macrophages.

Pyroptosis is a regulated inflammatory cell death process that plays an essential role in various diseases. This study investigates the role of proline/serine-rich coiled-coil protein 1 (PSRC1) in pyroptosis and inflammation in macrophages. This study reports that PSRC1 expression is decreased in pyroptotic macrophages and that knockout of PSRC1 exacerbates pyroptosis and inflammation. PSRC1 overexpression alleviates pyroptosis and inflammation in macrophages. RNA-seq analysis reveals that PSRC1 regulates the expression of genes involved in the extracellular matrix (ECM). Specifically, PSRC1 downregulates the expression of periostin (POSTN), an ECM component. Knockdown of POSTN suppresses macrophage pyroptosis mediated by low expression of PSRC1. These findings suggest that PSRC1 can alleviate pyroptosis and inflammation in bone marrow-derived macrophages (BMDMs) by regulating the ECM and negatively regulating POSTN. This study provides insights into the role of PSRC1 in macrophage pyroptosis and identifies a potential target for the treatment of inflammatory diseases. Further research is needed to confirm these findings in vivo and in various disease models.