{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,7]],"date-time":"2026-09-07T13:21:33Z","timestamp":1788787293400,"version":"build-2803163510"},"reference-count":67,"publisher":"Wiley","issue":"9","license":[{"start":{"date-parts":[[2026,6,14]],"date-time":"2026-06-14T00:00:00Z","timestamp":1781395200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,6,14]],"date-time":"2026-06-14T00:00:00Z","timestamp":1781395200000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["82270011"],"award-info":[{"award-number":["82270011"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Phytotherapy Research"],"published-print":{"date-parts":[[2026,9]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    Malvidin and its derivatives exhibit potent anti\u2010inflammatory and antioxidant properties, yet their roles and mechanisms in infection\u2010related acute lung injury (ALI) remain unclear. This study aimed to investigate the protective effects of malvidin\u20103\u2010\n                    <jats:italic>O<\/jats:italic>\n                    \u2010rhamnoside (Mv3rh) in\n                    <jats:styled-content style=\"fixed-case\">\n                      <jats:italic>Klebsiella pneumoniae<\/jats:italic>\n                    <\/jats:styled-content>\n                    (KP)\u2010induced ALI and to elucidate the underlying mechanisms. A mouse model of KP\u2010induced ALI was employed to assess the effects of Mv3rh on lung pathology, bacterial burden, myeloperoxidase (MPO) activity, alveolar macrophage proportion, cytokine levels, and survival. Mechanistic studies in alveolar macrophages included RNA sequencing, detection of reactive oxygen species (ROS), and evaluation of inflammasome activation, pyroptosis, and antioxidant responses using quantitative PCR (qPCR), Western blotting, flow cytometry, immunoprecipitation, and immunofluorescence. Potential interactions between Mv3rh with NOD\u2010like receptor pyrin domain\u2010containing 3 (NLRP3) or the Toll\u2010like receptor 4\/MD\u20102 complex were examined by molecular docking, cellular thermal shift assay (CETSA), and the interaction with TLR4 was further assessed by surface plasmon resonance (SPR).\n                    <jats:italic>In vivo,<\/jats:italic>\n                    Mv3rh pretreatment significantly mitigated KP\u2010induced ALI, as evidenced by improved lung histopathology, reduced alveolar septal thickening, edema, and neutrophil infiltration, together with improved survival. These protective effects were accompanied by reduced systemic cytokine levels, lower bacterial burdens in the lung and blood, and partial restoration of alveolar macrophage\u2010like cells in bronchoalveolar lavage fluid (BALF). In alveolar macrophages, Mv3rh suppressed TLR4\/NF\u2010\u03baB signaling, reduced NLRP3 inflammasome priming and activation, inhibited cleavage of caspase\u20101 and GSDMD\u2010N, and attenuated macrophage pyroptosis. In addition, Mv3rh activated the NRF2\/HO\u20101 pathway, promoted NRF2 nuclear translocation, and restored antioxidant enzyme activities, including glutathione peroxidase (GPX), superoxide dismutase (SOD), and catalase (CAT). Mv3rh attenuates inflammation, oxidative stress, and macrophage pyroptosis in KP\u2010induced ALI by regulating the TLR4\/NF\u2010\u03baB\/NLRP3 inflammasome axis and the NRF2\/HO\u20101 antioxidant pathway. These findings suggest that Mv3rh possesses immunomodulatory activity and may be beneficial in KP\u2010associated ALI.\n                  <\/jats:p>","DOI":"10.1002\/ptr.70398","type":"journal-article","created":{"date-parts":[[2026,6,15]],"date-time":"2026-06-15T06:35:08Z","timestamp":1781505308000},"page":"5420-5440","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Malvidin\u20103\u2010\n                    <i>O<\/i>\n                    \u2010Rhamnoside Alleviates\n                    <scp>\n                      <i>Klebsiella pneumoniae<\/i>\n                    <\/scp>\n                    \u2010Induced Acute Lung Injury by Regulating Macrophage\u2010Mediated Inflammatory and Oxidative Pathways"],"prefix":"10.1002","volume":"40","author":[{"given":"Li","family":"Meng","sequence":"first","affiliation":[{"name":"School of Life Sciences Jiangsu Normal University  Xuzhou China"},{"name":"Department of Biochemistry, 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