{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,8]],"date-time":"2026-04-08T05:55:32Z","timestamp":1775627732528,"version":"3.50.1"},"reference-count":18,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2026,2,10]],"date-time":"2026-02-10T00:00:00Z","timestamp":1770681600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,2,10]],"date-time":"2026-02-10T00:00:00Z","timestamp":1770681600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Microbiology and Immunology"],"published-print":{"date-parts":[[2026,4]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>Macrophages are key components of the innate immune system, recognizing pathogen\u2010associated molecular patterns (PAMPs) via Toll\u2010like receptors (TLRs) to initiate immune responses. This study investigated the individual and combinatorial effects of TLR3 Poly(I:C), TLR5 (Flagellin), and TLR7 (Imiquimod) ligands on nitric oxide (NO) production and pro\u2010inflammatory cytokine expression in RAW 264.7 mouse macrophage cells. Our results demonstrate that all three individual TLR agonists induced NO production and cytokine expression. Notably, co\u2010stimulation with Poly(I:C) and imiquimod led to a significant synergistic enhancement of NO production, particularly at lower concentrations. A robust upregulation was observed in key Th1\u2010type (IL\u201012p40, IFN\u2010\u03b3, TNF\u2010\u03b1) and Th2\u2010type (IL\u20106) cytokines. The optimal synergistic response for cytokine induction was observed with a 0.1\u2009\u00b5g\/mL Poly(I:C) and 1\u2009\u00b5g\/mL imiquimod combination. These findings highlight a potent crosstalk between TRIF\u2010dependent (TLR3) and MyD88\u2010dependent (TLR7, TLR5) signaling pathways, leading to amplified immune activation. Our study highlights the potential of synergistic TLR ligand combinations as powerful immunomodulators, offering promising avenues for the rational design of more effective vaccine adjuvants and innovative strategies in cancer immunotherapy.<\/jats:p>","DOI":"10.1111\/1348-0421.70045","type":"journal-article","created":{"date-parts":[[2026,2,10]],"date-time":"2026-02-10T09:58:19Z","timestamp":1770717499000},"page":"232-240","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Synergistic Activation of NO and Cytokine Production by TLR3 With TLR5 or TLR7 Agonists in RAW 264.7 Cells"],"prefix":"10.1111","volume":"70","author":[{"given":"Thu\u2010Dung","family":"Doan","sequence":"first","affiliation":[{"name":"International Degree Program in Animal Vaccine Technology National Pingtung University of Science and Technology Pingtung Taiwan"},{"name":"Graduate Institute of Animal Vaccine Technology, College of Veterinary Medicine National Pingtung University of Science and Technology Pingtung Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Haroon","family":"Afzal","sequence":"additional","affiliation":[{"name":"International Degree Program in Animal Vaccine Technology National Pingtung University of Science and Technology Pingtung Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Asad","family":"Murtaza","sequence":"additional","affiliation":[{"name":"International Degree Program in Animal Vaccine Technology National Pingtung University of Science and Technology Pingtung Taiwan"},{"name":"Norwegian College of Fishery Science, Faculty of Biosciences, Fisheries and Economics UiT\u2014The Arctic University of Norway Troms\u00f8 Norway"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kamonpun","family":"Chuekwon","sequence":"additional","affiliation":[{"name":"Department of Tropical Agriculture and International Cooperation National Pingtung 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