PMID- 23123736 OWN - NLM STAT- MEDLINE DCOM- 20130617 LR - 20181202 IS - 1872-8057 (Electronic) IS - 0303-7207 (Linking) VI - 365 IP - 2 DP - 2013 Jan 30 TI - Damaged spermatogenic cells induce inflammatory gene expression in mouse Sertoli cells through the activation of Toll-like receptors 2 and 4. PG - 162-73 LID - S0303-7207(12)00468-6 [pii] LID - 10.1016/j.mce.2012.10.016 [doi] AB - Testicular inflammation, including noninfectious inflammatory responses in the testis, may impair male fertility. Mechanisms underlying the initiation of noninfectious testicular inflammation are poorly understood. In the current study, we demonstrate that damaged spermatogenic cell products (DSCPs) induce expression of various inflammatory mediators, including TNF-alpha, IL-1beta, IL-6, and macrophage chemotactic protein 1 (MCP-1), in Sertoli cells. Notably, the DSCP-induced inflammatory gene expression was significantly reduced by knockout Toll-like receptor (TLR)2 or TLR4, and abolished by double knockout TLR2 and TLR4 (TLR2(-/-)TLR4(-/-)). MCP-1 secreted by Sertoli cells after stimulation with DSCPs promotes macrophage migration. We also provide evidence that busulfan-induced spermatogenic cell damages in vivo upregulate TNF-alpha and MCP-1 expression in Sertoli cells, and facilitate macrophage infiltration into the testis in wild-type mice. These phenomena were not observed in TLR2(-/-)TLR4(-/-) mice. Data indicate that DSCPs induce inflammatory gene expression in Sertoli cells via the activation of TLR2 and TLR4, which may initiate noninfectious inflammatory responses in the testis. The results provide novel insights into the mechanisms underlying damaged spermatogenic cell-induced testicular inflammation. CI - Copyright (c) 2012 Elsevier Ireland Ltd. All rights reserved. FAU - Zhang, Xiaoyan AU - Zhang X AD - Department of Cell Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, School of Basic Medicine, Peking Union Medical College, Beijing, China. FAU - Wang, Tao AU - Wang T FAU - Deng, Tingting AU - Deng T FAU - Xiong, Weipeng AU - Xiong W FAU - Lui, Peng AU - Lui P FAU - Li, Nan AU - Li N FAU - Chen, Yongmei AU - Chen Y FAU - Han, Daishu AU - Han D LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20121030 PL - Ireland TA - Mol Cell Endocrinol JT - Molecular and cellular endocrinology JID - 7500844 RN - 0 (Ccl2 protein, mouse) RN - 0 (Chemokine CCL2) RN - 0 (Culture Media, Conditioned) RN - 0 (Inflammation Mediators) RN - 0 (Interleukin-1beta) RN - 0 (Interleukin-6) RN - 0 (Tlr2 protein, mouse) RN - 0 (Tlr4 protein, mouse) RN - 0 (Toll-Like Receptor 2) RN - 0 (Toll-Like Receptor 4) RN - 0 (Tumor Necrosis Factor-alpha) SB - IM MH - Animals MH - Apoptosis MH - Cells, Cultured MH - Chemokine CCL2/genetics/metabolism MH - Chemotaxis MH - Culture Media, Conditioned MH - Gene Expression MH - *Gene Expression Regulation MH - Inflammation Mediators/metabolism MH - Interleukin-1beta/genetics/metabolism MH - Interleukin-6/genetics/metabolism MH - MAP Kinase Signaling System MH - Macrophages, Peritoneal/physiology MH - Male MH - Mice MH - Mice, Inbred C57BL MH - Mice, Knockout MH - Necrosis MH - Orchitis/metabolism MH - Sertoli Cells/immunology/*metabolism MH - Spermatogonia/metabolism/pathology/physiology MH - Toll-Like Receptor 2/*metabolism MH - Toll-Like Receptor 4/*metabolism MH - Tumor Necrosis Factor-alpha/genetics/metabolism MH - Up-Regulation EDAT- 2012/11/06 06:00 MHDA- 2013/06/19 06:00 CRDT- 2012/11/06 06:00 PHST- 2012/04/16 00:00 [received] PHST- 2012/09/13 00:00 [revised] PHST- 2012/10/16 00:00 [accepted] PHST- 2012/11/06 06:00 [entrez] PHST- 2012/11/06 06:00 [pubmed] PHST- 2013/06/19 06:00 [medline] AID - S0303-7207(12)00468-6 [pii] AID - 10.1016/j.mce.2012.10.016 [doi] PST - ppublish SO - Mol Cell Endocrinol. 2013 Jan 30;365(2):162-73. doi: 10.1016/j.mce.2012.10.016. Epub 2012 Oct 30.