PMID- 24754835 OWN - NLM STAT- MEDLINE DCOM- 20150330 LR - 20211021 IS - 1460-9568 (Electronic) IS - 0953-816X (Print) IS - 0953-816X (Linking) VI - 40 IP - 3 DP - 2014 Aug TI - The TIR-domain-containing adapter inducing interferon-beta-dependent signaling cascade plays a crucial role in ischemia-reperfusion-induced retinal injury, whereas the contribution of the myeloid differentiation primary response 88-dependent signaling cascade is not as pivotal. PG - 2502-12 LID - 10.1111/ejn.12603 [doi] AB - Toll-like receptor 4 (Tlr4) plays an important role in ischemia-reperfusion (IR)-induced retinal inflammation and damage. However, the role of two Tlr4-dependent signaling cascades, myeloid differentiation primary response 88 (Myd88) and TIR-domain-containing adapter inducing interferon-beta (Trif), in retinal IR injury is poorly understood. In this study, we investigated the contribution of the Myd88-dependent and Trif-dependent signaling cascades in retinal damage and inflammation triggered by IR, by using Myd88 knockout (Myd88KO) and Trif knockout (TrifKO) mice. Retinal IR injury was induced by unilateral elevation of intraocular pressure for 45 min by direct corneal cannulation. To study IR-induced retinal ganglion cell (RGC) death in vitro, we used an oxygen and glucose deprivation (OGD) model. Our data suggested that Myd88 was present in many retinal layers of sham-operated and ischemic mice, whereas Trif was mainly present in the ganglion cell layer (GCL). The level of Myd88 was increased in the retina after IR. We found that retinas of TrifKO mice had a significantly reduced neurotoxic pro-inflammatory response and significantly increased survival of the GCL neurons after IR. Although Myd88KO mice had relatively low levels of inflammation in ischemic retinas, their levels of IR-induced retinal damage were notably higher than those of TrifKO mice. We also found that Trif-deficient RGCs were more resistant to death induced by OGD than were RGCs isolated from Myd88KO mice. These data suggested that, as compared with the Myd88-dependent signaling cascade, Trif signaling contributes significantly to retinal damage after IR. CI - (c) 2014 The Authors. European Journal of Neuroscience published by Federation of European Neuroscience Societies and John Wiley & Sons Ltd. FAU - Dvoriantchikova, Galina AU - Dvoriantchikova G AD - Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, 1638 NW 10th Ave, Miami, FL, 33136, USA. FAU - Santos, Andrea Rachelle C AU - Santos AR FAU - Danek, Dagmara AU - Danek D FAU - Dvoriantchikova, Xenia AU - Dvoriantchikova X FAU - Ivanov, Dmitry AU - Ivanov D LA - eng GR - P30 EY014801/EY/NEI NIH HHS/United States GR - R01 EY022348/EY/NEI NIH HHS/United States GR - P30EY014801/EY/NEI NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, Non-P.H.S. DEP - 20140423 PL - France TA - Eur J Neurosci JT - The European journal of neuroscience JID - 8918110 RN - 0 (Adaptor Proteins, Vesicular Transport) RN - 0 (Myd88 protein, mouse) RN - 0 (Myeloid Differentiation Factor 88) RN - 0 (TICAM-1 protein, mouse) RN - 0 (Tlr4 protein, mouse) RN - 0 (Toll-Like Receptor 4) SB - IM MH - Adaptor Proteins, Vesicular Transport/genetics/*metabolism MH - Animals MH - Mice MH - Mice, Inbred C57BL MH - Mice, Knockout MH - Myeloid Differentiation Factor 88/genetics/*metabolism MH - Reperfusion Injury/metabolism MH - Retina/metabolism MH - Retinal Diseases/*metabolism MH - Retinal Ganglion Cells/metabolism MH - Retinitis/*metabolism MH - *Signal Transduction MH - Toll-Like Receptor 4/*metabolism PMC - PMC4122625 MID - NIHMS583330 OTO - NOTNLM OT - inflammation OT - ischemia-reperfusion injury OT - mouse models OT - retinal damage OT - toll-like receptor signaling EDAT- 2014/04/24 06:00 MHDA- 2015/03/31 06:00 CRDT- 2014/04/24 06:00 PHST- 2014/02/19 00:00 [received] PHST- 2014/03/25 00:00 [revised] PHST- 2014/03/28 00:00 [accepted] PHST- 2014/04/24 06:00 [entrez] PHST- 2014/04/24 06:00 [pubmed] PHST- 2015/03/31 06:00 [medline] AID - 10.1111/ejn.12603 [doi] PST - ppublish SO - Eur J Neurosci. 2014 Aug;40(3):2502-12. doi: 10.1111/ejn.12603. Epub 2014 Apr 23.