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Phagocytosis is considered a trigger for shifting macrophages from a profibrotic phenotype to a restorative phenotype. However, the underlying mechanism by which macrophages enhance phagocytosis remains unclear. Our present study investigated the role of reactive oxygen species (ROS)\u2010modulated TRPM2 activation in this process.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>The changes of TRPM2 expression, ROS intensity, and macrophage phagocytosis were assessed in fibrogenesis and fibrosis regression models. RNA sequencing was utilised to reveal pathway enrichment caused by TRPM2, and the role of TRPM2 in enhancing phagocytosis was verified. The coordinate regulation of ROS\u2010TRPM2 in different functions of macrophages was demonstrated by modulating ROS intensity and TRPM2 expression. Mitochondrial dynamics changes induced by ROS\u2010stimulated TRPM2 activation were evaluated by analysing the expression of dynamics\u2010related molecules and mitochondrial imaging, and intervention in mitochondrial dynamics confirmed their impact on macrophage phagocytosis.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Low\u2010intensity ROS stimulation up\u2010regulated the expression of TRPM2 and coordinately enhanced macrophage phagocytosis and the expression of matrix degradation\u2010related proteins (MMPs), a process akin to fibrosis regression. However, high\u2010intensity ROS inclined macrophages to produce more profibrotic cytokines, associating with oxidative stress caused by liver injury. ROS\u2010mediated TRPM2 activation mobilised Ca\n                      <jats:sup>2+<\/jats:sup>\n                      and promoted mitochondrial fission; either inhibiting mitochondrial fission or chelating Ca\n                      <jats:sup>2+<\/jats:sup>\n                      counteracted phagocytosis, as well as decreasing MMPs.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>ROS\u2010TRPM2 coordinately regulate macrophage functions. During the liver fibrosis regression period, ROS\u2010induced activation of TRPM2 helps enhance macrophage phagocytosis and switches them to a restorative phenotype. Modulating this process may provide means for developing effective therapeutic strategies.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/liv.70341","type":"journal-article","created":{"date-parts":[[2025,9,15]],"date-time":"2025-09-15T13:44:25Z","timestamp":1757943865000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Reactive Oxygen Species\u2010Mediated\n                    <scp>TRPM2<\/scp>\n                    Activation Facilitates Phagocytosis of Macrophages to Reverse Profibrotic Phenotype"],"prefix":"10.1111","volume":"45","author":[{"given":"Shaoying","family":"Zhang","sequence":"first","affiliation":[{"name":"Department of General Surgery, National\u2010Local Joint Engineering Research Center of Biodiagnosis &amp; Biotherapy The Second Affiliated Hospital of Xi'an Jiaotong University  Xi'an China"},{"name":"Shaanxi Provincial Clinical Medical Research Center for Liver and Spleen Diseases The 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