PMID- 26062411 OWN - NLM STAT- MEDLINE DCOM- 20151112 LR - 20150611 IS - 1007-8738 (Print) IS - 1007-8738 (Linking) VI - 31 IP - 6 DP - 2015 Jun TI - [Pneumococcal HSP40 induces the immune response in mouse macrophages via p38MAPK and JNK signaling pathways]. PG - 730-5 AB - OBJECTIVE: To investigate the mechanism of immune response in mouse macrophage induced by Pneumococcal heat shock protein 40 (HSP40). METHODS: After recombinant HSP40 (rHSP40) underwent expression detection and purification, lipopolysaccharide (LPS) was removed from it. Then rHSP40 was used to stimulate bone marrow derived macrophages (BMDMs) derived from C57BL/6 wild-type mice. The mRNA levels of tumor necrosis factor alpha (TNF-alpha), interleukin 6 (IL-6), IL-1beta, IL-23p19, IL-12p40, IL-12p35 and IL-10 in BMDMs were determined by reverse transcription PCR; the expressions of TNF-alpha, IL-6 and IL-12p40 were measured by ELISA. After stimulated by rHSP40, the levels of TNF-alpha and IL-6 expressed by wide-type, TLR2-/- and TLR4-/- BMDMs were detected by ELISA. The effects of the pretreatment of mitogen-activated protein kinases (MAPK) inhibitors on the secretion of TNF-alpha and IL-6 induced by rHSP40 were also evaluated by ELISA in BMDMs. The phosphorylation levels of p38MAPK and c-Jun N-terminal kinase (JNK) were determined by Western blotting. RESULTS: The rHSP40 protein reached a purity of more than 90%. It significantly enhanced the phosphorylation levels of p38MAPK and JNK as well as the expressions of TNF-alpha and IL-6. The p38MAPK and JNK inhibitors significantly suppressed the expressions of TNF-alpha and IL-6. The expressions of TNF-alpha and IL-6 in TLR4-/- BMDMs significantly decreased compared with wide-type BMDMs. CONCLUSION: HSP40-induced immune response of mouse macrophages is regulated by p38MAPK and JNK signaling pathways, and this induction process depends on TLR4. FAU - Wu, Yingying AU - Wu Y AD - Ministry of Education Key Laboratory of Medical Diagnostics, Department of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, China. FAU - Gao, Song AU - Gao S AD - Ministry of Education Key Laboratory of Medical Diagnostics, Department of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, China. FAU - Ma, Feng AU - Ma F AD - Ministry of Education Key Laboratory of Medical Diagnostics, Department of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, China. FAU - Cui, Jingjing AU - Cui J AD - Ministry of Education Key Laboratory of Medical Diagnostics, Department of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, China. FAU - Yao, Hua AU - Yao H AD - Ministry of Education Key Laboratory of Medical Diagnostics, Department of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, China. FAU - Sun, Xiaoyu AU - Sun X AD - Ministry of Education Key Laboratory of Medical Diagnostics, Department of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, China. FAU - Wang, Jichao AU - Wang J AD - Ministry of Education Key Laboratory of Medical Diagnostics, Department of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, China. FAU - Xu, Wenchun AU - Xu W AD - Ministry of Education Key Laboratory of Medical Diagnostics, Department of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, China. LA - chi PT - English Abstract PT - Journal Article PL - China TA - Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi JT - Xi bao yu fen zi mian yi xue za zhi = Chinese journal of cellular and molecular immunology JID - 101139110 RN - 0 (Bacterial Proteins) RN - 0 (Cytokines) RN - 0 (HSP40 Heat-Shock Proteins) RN - 0 (Lipopolysaccharides) RN - 0 (RNA, Messenger) RN - 0 (Tlr2 protein, mouse) RN - 0 (Tlr4 protein, mouse) RN - 0 (Toll-Like Receptor 2) RN - 0 (Toll-Like Receptor 4) RN - EC 2.7.11.24 (JNK Mitogen-Activated Protein Kinases) RN - EC 2.7.11.24 (p38 Mitogen-Activated Protein Kinases) SB - IM MH - Animals MH - Bacterial Proteins/immunology MH - Bone Marrow Cells/cytology MH - Cytokines/genetics MH - Gene Expression Regulation/immunology MH - HSP40 Heat-Shock Proteins/chemistry/*immunology MH - JNK Mitogen-Activated Protein Kinases/*metabolism MH - Lipopolysaccharides/isolation & purification MH - MAP Kinase Signaling System/*immunology MH - Macrophages/*cytology/*immunology/metabolism MH - Male MH - Mice MH - Mice, Inbred C57BL MH - Phosphorylation/immunology MH - RNA, Messenger/genetics/metabolism MH - Streptococcus pneumoniae/*immunology MH - Toll-Like Receptor 2/metabolism MH - Toll-Like Receptor 4/metabolism MH - p38 Mitogen-Activated Protein Kinases/*metabolism EDAT- 2015/06/13 06:00 MHDA- 2015/11/13 06:00 CRDT- 2015/06/12 06:00 PHST- 2015/06/12 06:00 [entrez] PHST- 2015/06/13 06:00 [pubmed] PHST- 2015/11/13 06:00 [medline] PST - ppublish SO - Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi. 2015 Jun;31(6):730-5.