{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,29]],"date-time":"2026-04-29T04:05:04Z","timestamp":1777435504335,"version":"3.51.4"},"reference-count":47,"publisher":"SAGE Publications","issue":"4-6","license":[{"start":{"date-parts":[[2025,8,1]],"date-time":"2025-08-01T00:00:00Z","timestamp":1754006400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Antioxidants &amp; Redox Signaling"],"published-print":{"date-parts":[[2025,8]]},"abstract":"<jats:sec>\n                    <jats:title>Aims:<\/jats:title>\n                    <jats:p>Periprosthetic osteolysis (PPO), a leading cause of aseptic loosening in joint replacement, arose from complex interactions among osteoblasts, osteoclasts, and osteocytes. Given the pivotal role of connexin 43 (Cx43) in osteocyte communication and bone remodeling, investigating its function was essential for understanding the mechanisms of osteolysis. Our previous studies showed that titanium (Ti) particles increased Cx43 expression in osteocytes. However, the role of Cx43 in osteolysis remained unclear. This study investigated the role of Cx43-mediated regulation of osteocytes on osteoclastogenesis in wear debris-induced osteolysis.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>\n                      Using\n                      <jats:italic toggle=\"yes\">Dmp1<\/jats:italic>\n                      -cre conditional\n                      <jats:italic toggle=\"yes\">Cx43<\/jats:italic>\n                      knockout mice and the MLO-Y4 osteocyte cell line, we demonstrated that\n                      <jats:italic toggle=\"yes\">Cx43<\/jats:italic>\n                      deficiency reduced bone resorption and osteoclastogenesis, thereby improving bone remodeling in a Ti particle-induced osteolysis model. Sequencing analysis revealed that\n                      <jats:italic toggle=\"yes\">Cx43<\/jats:italic>\n                      gene expression changes might be linked to oxidative stress and the Janus Kinase (JAK)-STAT pathway. Elevated Cx43 expression in osteocytes stimulated by Ti particles increased STAT1 protein phosphorylation, induced oxidative stress, elevated the Receptor Activator of Nuclear Factor Kappa-\u0392 Ligand (RANKL)\/Osteoprotegerin (OPG) ratio, and promoted osteoclast activation and bone resorption. Conversely,\n                      <jats:italic toggle=\"yes\">Cx43 gene<\/jats:italic>\n                      knockout decreased STAT1 protein phosphorylation and enhanced Nuclear Factor Erythroid 2-Related Factor 2 (NrF2) protein expression. Blocking the JAK-STAT signaling pathway activated by Cx43 increased NrF2 expression, reduced reactive oxygen species levels, and subsequently decreased the RANKL\/OPG ratio.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Innovation and Conclusions:<\/jats:title>\n                    <jats:p>\n                      This study identified a novel mechanism where Cx43 in osteocytes promoted osteoclastogenesis through JAK-STAT pathway activation and oxidative stress in wear debris-induced osteolysis. These findings highlighted the critical role of Cx43 in bone resorption and suggested targeting Cx43 or the JAK-STAT pathway as potential therapeutic strategies to mitigate osteolysis and improve implant longevity.\n                      <jats:italic toggle=\"yes\">Antioxid. Redox Signal.<\/jats:italic>\n                      43, 215\u2013238.\n                    <\/jats:p>\n                  <\/jats:sec>","DOI":"10.1089\/ars.2024.0894","type":"journal-article","created":{"date-parts":[[2025,4,10]],"date-time":"2025-04-10T04:52:20Z","timestamp":1744260740000},"page":"215-238","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":5,"title":["Titanium Particles Activate Osteocytic Connexin 43 to Induce Oxidative Stress and Osteoclastogenesis Through the JAK-STAT Pathway"],"prefix":"10.1177","volume":"43","author":[{"given":"Jiawei","family":"Ouyang","sequence":"first","affiliation":[{"name":"Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Suzhou, China."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hao","family":"Chai","sequence":"additional","affiliation":[{"name":"Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Suzhou, China."},{"name":"Department of Rheumatology and Immunology, The Second Hospital of Shanxi Medical University, Shanxi, China."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chunguang","family":"Sun","sequence":"additional","affiliation":[{"name":"Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Suzhou, China."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shendong","family":"Wang","sequence":"additional","affiliation":[{"name":"Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Suzhou, China."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chang","family":"She","sequence":"additional","affiliation":[{"name":"Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Suzhou, China."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Dechun","family":"Geng","sequence":"additional","affiliation":[{"name":"Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou, China."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6030-0668","authenticated-orcid":false,"given":"Wei","family":"Xu","sequence":"additional","affiliation":[{"name":"Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Suzhou, 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