PMID- 35003292 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220111 IS - 1741-427X (Print) IS - 1741-4288 (Electronic) IS - 1741-427X (Linking) VI - 2021 DP - 2021 TI - Inhibitory Effects of Inonotus obliquus Polysaccharide on Inflammatory Response in Toxoplasma gondii-Infected RAW264.7 Macrophages. PG - 2245496 LID - 10.1155/2021/2245496 [doi] LID - 2245496 AB - Our previous reports have shown that Inonotus obliquus polysaccharide (IOP) has protective effects against Toxoplasma gondii (T. gondii) infection in vivo. The aim of the present research is to explore the in vitro anti-inflammatory effects of IOP and its mechanism in RAW264.7 macrophages infected by T. gondii. In this study, it is indicated that IOP decreased the excessive secretion of inflammatory cytokines tumor necrosis factor-alpha (TNF-alpha), interferon-gamma (IFN-gamma), interleukin-1beta (IL-1beta), IL-4, and IL-6 in T. gondii-infected RAW264.7 macrophages. IOP effectively suppressed the mRNA expression of these cytokines and chemokines monocyte chemoattractant protein-1 (MCP-1) and macrophage inflammatory protein-1alpha (MIP-1alpha). Moreover, IOP inhibited the phosphorylation of inhibitor kappa B kinase alpha/beta (IKKalpha/beta), inhibitor kappaBalpha (IkappaBalpha), p65 in nuclear factor-kappa B (NF-kappaB) signaling pathway and p38, c-Jun N-terminal kinase (JNK), and extracellular signal-regulated kinase 1/2 (ERK1/2) in mitogen-activated protein kinases (MAPKs) signaling pathway. Meantime, IOP prevented NF-kappaB p65 and c-Jun translocation from the cytoplasm to the nucleus. Further, IOP downregulated the protein expression of toll-like receptor 2 (TLR2) and TLR4 in T. gondii-infected RAW264.7 macrophages. The above results suggest that IOP can inhibit the inflammatory response infected with T. gondii via regulating TLR2/TLR4-NF-kappaB/MAPKs pathways and exerting its anti-T. gondii role in vitro. CI - Copyright (c) 2021 Kexin Yan et al. FAU - Yan, Kexin AU - Yan K AUID- ORCID: 0000-0003-1014-3833 AD - Agricultural College of Yanbian University, Gongyuan Street, Yanji, Jilin 133002, China. FAU - Zhou, Hongyuan AU - Zhou H AUID- ORCID: 0000-0002-8012-3742 AD - Agricultural College of Yanbian University, Gongyuan Street, Yanji, Jilin 133002, China. FAU - Wang, Meng AU - Wang M AUID- ORCID: 0000-0003-1549-5715 AD - Agricultural College of Yanbian University, Gongyuan Street, Yanji, Jilin 133002, China. FAU - Li, Haitao AU - Li H AUID- ORCID: 0000-0001-5107-8455 AD - Agricultural College of Yanbian University, Gongyuan Street, Yanji, Jilin 133002, China. AD - Institute of Special Wild Economic Animals and Plants, Chinese Academy of Agricultural Sciences, Juye Street, Changchun, Jilin 132109, China. FAU - Sang, Rui AU - Sang R AUID- ORCID: 0000-0002-8402-1110 AD - Agricultural College of Yanbian University, Gongyuan Street, Yanji, Jilin 133002, China. FAU - Ge, Bingjie AU - Ge B AUID- ORCID: 0000-0001-9052-1800 AD - Agricultural College of Yanbian University, Gongyuan Street, Yanji, Jilin 133002, China. FAU - Zhao, Xin AU - Zhao X AUID- ORCID: 0000-0002-1739-0901 AD - Agricultural College of Yanbian University, Gongyuan Street, Yanji, Jilin 133002, China. FAU - Li, Chunting AU - Li C AUID- ORCID: 0000-0001-5691-7430 AD - Agricultural College of Yanbian University, Gongyuan Street, Yanji, Jilin 133002, China. FAU - Wang, Wei AU - Wang W AUID- ORCID: 0000-0001-9226-6532 AD - Agricultural College of Yanbian University, Gongyuan Street, Yanji, Jilin 133002, China. FAU - Zhang, Xuemei AU - Zhang X AUID- ORCID: 0000-0003-0677-4691 AD - Agricultural College of Yanbian University, Gongyuan Street, Yanji, Jilin 133002, China. AD - Engineering Research Center of North-East Cold Region Beef Cattle Science & Technology Innovation, Ministry of Education, Yanbian University, Gongyuan Street, Yanji, Jilin 133002, China. LA - eng PT - Journal Article DEP - 20211229 PL - United States TA - Evid Based Complement Alternat Med JT - Evidence-based complementary and alternative medicine : eCAM JID - 101215021 PMC - PMC8731277 COIS- The authors confirm that there are no conflicts of interest. EDAT- 2022/01/11 06:00 MHDA- 2022/01/11 06:01 PMCR- 2021/12/29 CRDT- 2022/01/10 09:12 PHST- 2021/10/13 00:00 [received] PHST- 2021/12/15 00:00 [accepted] PHST- 2022/01/10 09:12 [entrez] PHST- 2022/01/11 06:00 [pubmed] PHST- 2022/01/11 06:01 [medline] PHST- 2021/12/29 00:00 [pmc-release] AID - 10.1155/2021/2245496 [doi] PST - epublish SO - Evid Based Complement Alternat Med. 2021 Dec 29;2021:2245496. doi: 10.1155/2021/2245496. eCollection 2021.