PMID- 32881004 OWN - NLM STAT- MEDLINE DCOM- 20210212 LR - 20210212 IS - 1365-3024 (Electronic) IS - 0141-9838 (Linking) VI - 42 IP - 12 DP - 2020 Dec TI - Trichomonas vaginalis-secreted cysteinyl leukotrienes promote migration, degranulation and MCP-1 production in mast cells. PG - e12789 LID - 10.1111/pim.12789 [doi] AB - Trichomonas vaginalis, a flagellated extracellular protozoan parasite that infects the human genitourinary tract, is usually transmitted by sexual contact. Our previous study showed that the leukotriene B(4) (LTB(4) ), a T vaginalis-secreted lipid mediator, induces interleukin (IL)-8 production and promotes mast cell degranulation and migration via BLT1 in human. In this study, we investigated whether T vaginalis produces another leukotrienes and whether it causes increased MCP-1 production, mast cell migration and degranulation by activating mast cells. We found that cysteinyl leukotrienes (CysLTs) were contained in T vaginalis-derived secretory product (TvSP) by ELISA. The TvSP-stimulated human mast cell line (HMC-1) exhibited significantly increased monocyte chemoattractant protein-1 (MCP-1) secretion compared to the unstimulated cells. Inhibition of NOX2 activation of cells by treatment of NOX inhibitor or NOX2 siRNA reduced TvSP-stimulated MCP-1 production in HMC-1 cells. It was also confirmed that the receptor for CysLTs is expressed in mast cells. The CysLT receptor (CysLTR) antagonist inhibited TvSP-stimulated MCP-1 production of mast cells, as well as ROS production, migration and degranulation of mast cells, and reduced phospho-NF-kB expression. These results suggest that T vaginalis-secreted CysLTs promote migration, degranulation and MCP-1 production in human mast cells through CysLT receptor-mediated NOX2 activation. CI - (c) 2020 John Wiley & Sons Ltd. FAU - Lee, Young Ah AU - Lee YA AUID- ORCID: 0000-0002-0414-842X AD - Department of Environmental Medical Biology and Institute of Tropical Medicine, Yonsei University College of Medicine, Seoul, Korea. FAU - Nam, Young Hee AU - Nam YH AD - Department of Environmental Medical Biology and Institute of Tropical Medicine, Yonsei University College of Medicine, Seoul, Korea. FAU - Min, Arim AU - Min A AUID- ORCID: 0000-0003-2938-9630 AD - Department of Environmental Medical Biology and Institute of Tropical Medicine, Yonsei University College of Medicine, Seoul, Korea. FAU - Shin, Myeong Heon AU - Shin MH AUID- ORCID: 0000-0001-8207-6110 AD - Department of Environmental Medical Biology and Institute of Tropical Medicine, Yonsei University College of Medicine, Seoul, Korea. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20200918 PL - England TA - Parasite Immunol JT - Parasite immunology JID - 7910948 RN - 0 (CCL2 protein, human) RN - 0 (Chemokine CCL2) RN - 0 (Immunologic Factors) RN - 0 (Leukotrienes) RN - 0 (Receptors, Leukotriene) RN - 0 (cysteinyl-leukotriene) RN - EC 1.6.3.- (CYBB protein, human) RN - EC 1.6.3.- (NADPH Oxidase 2) RN - K848JZ4886 (Cysteine) SB - IM MH - Cell Degranulation MH - Cell Line MH - Cell Movement MH - Chemokine CCL2/*metabolism MH - Cysteine/*metabolism MH - Humans MH - Immunologic Factors/*metabolism MH - Leukotrienes/*metabolism MH - Mast Cells/metabolism/*physiology MH - NADPH Oxidase 2/metabolism MH - Receptors, Leukotriene/metabolism MH - Signal Transduction MH - Trichomonas vaginalis/*metabolism OTO - NOTNLM OT - Trichomonas vaginalis OT - NADPH oxidase 2 OT - cysteinyl leukotrienes OT - mast cells OT - monocyte chemoattractant protein-1 EDAT- 2020/09/04 06:00 MHDA- 2021/02/13 06:00 CRDT- 2020/09/04 06:00 PHST- 2020/06/22 00:00 [received] PHST- 2020/08/22 00:00 [revised] PHST- 2020/08/24 00:00 [accepted] PHST- 2020/09/04 06:00 [pubmed] PHST- 2021/02/13 06:00 [medline] PHST- 2020/09/04 06:00 [entrez] AID - 10.1111/pim.12789 [doi] PST - ppublish SO - Parasite Immunol. 2020 Dec;42(12):e12789. doi: 10.1111/pim.12789. Epub 2020 Sep 18.