PMID- 37080369 OWN - NLM STAT- MEDLINE DCOM- 20230529 LR - 20230604 IS - 1879-0089 (Electronic) IS - 0145-305X (Linking) VI - 145 DP - 2023 Aug TI - Evolution of LPS recognition and signaling: The bony fish perspective. PG - 104710 LID - S0145-305X(23)00080-0 [pii] LID - 10.1016/j.dci.2023.104710 [doi] AB - Fish are the most diverse and successful group of vertebrate animals, with about 30,000 species. The study of fish immunity is of great importance for understanding the evolution of vertebrate immunity, as they are the first animals to show both innate and adaptive immune responses. Although fish immunity is similar to that of mammals, there are obvious differences, such as their dependence of ambient temperature, their poor antibody response, and lack of antibody switching and lymph nodes. In addition, several important differences have also been found between the innate immune responses of fish and mammals. Among these, we will discuss in this review the high resistance of fish to the toxic effects of lipopolysaccharide (LPS) which can be explained by the absence of a Toll-like receptor 4 (Tlr4) ortholog in most fish species or by the inability of the Tlr4/Md2 (Myeloid differentiation 2) complex to recognize LPS, together with the presence of a negative regulator of the LPS signaling complex formed by the TLR-like molecule Rp105 (Radioprotective 105) and Md1. Taken together, these data support the idea that, although TLR4 and RP105 arose from a common ancestor to fish and tetrapods, the TLR4/MD2 receptor complex for LPS recognition arose after their divergence about 450 million years ago. CI - Copyright (c) 2023 The Authors. Published by Elsevier Ltd.. All rights reserved. FAU - Martinez-Lopez, Alicia AU - Martinez-Lopez A AD - Instituto Murciano de Investigacion Biosanitaria (IMIB)-Arrixaca, 30120, Murcia, Spain; Centro de Investigacion Biomedica en Red de Enfermedades Raras (CIBERER), Instituto de Salud Carlos III, 28029, Madrid, Spain. Electronic address: alicia.martinez34@um.es. FAU - Tyrkalska, Sylwia D AU - Tyrkalska SD AD - Departamento de Biologia Celular e Histologia, Facultad de Biologia, Universidad de Murcia, 30100, Murcia, Spain; Instituto Murciano de Investigacion Biosanitaria (IMIB)-Arrixaca, 30120, Murcia, Spain; Centro de Investigacion Biomedica en Red de Enfermedades Raras (CIBERER), Instituto de Salud Carlos III, 28029, Madrid, Spain. FAU - Alcaraz-Perez, Francisca AU - Alcaraz-Perez F AD - Instituto Murciano de Investigacion Biosanitaria (IMIB)-Arrixaca, 30120, Murcia, Spain; Centro de Investigacion Biomedica en Red de Enfermedades Raras (CIBERER), Instituto de Salud Carlos III, 28029, Madrid, Spain; Hospital Clinico Universitario Virgen de la Arrixaca, 30120, Murcia, Spain. FAU - Cabas, Isabel AU - Cabas I AD - Departamento de Biologia Celular e Histologia, Facultad de Biologia, Universidad de Murcia, 30100, Murcia, Spain; Instituto Murciano de Investigacion Biosanitaria (IMIB)-Arrixaca, 30120, Murcia, Spain; Centro de Investigacion Biomedica en Red de Enfermedades Raras (CIBERER), Instituto de Salud Carlos III, 28029, Madrid, Spain. FAU - Candel, Sergio AU - Candel S AD - Departamento de Biologia Celular e Histologia, Facultad de Biologia, Universidad de Murcia, 30100, Murcia, Spain; Instituto Murciano de Investigacion Biosanitaria (IMIB)-Arrixaca, 30120, Murcia, Spain; Centro de Investigacion Biomedica en Red de Enfermedades Raras (CIBERER), Instituto de Salud Carlos III, 28029, Madrid, Spain. FAU - Martinez Morcillo, Francisco J AU - Martinez Morcillo FJ AD - Departamento de Biologia Celular e Histologia, Facultad de Biologia, Universidad de Murcia, 30100, Murcia, Spain; Instituto Murciano de Investigacion Biosanitaria (IMIB)-Arrixaca, 30120, Murcia, Spain; Centro de Investigacion Biomedica en Red de Enfermedades Raras (CIBERER), Instituto de Salud Carlos III, 28029, Madrid, Spain. FAU - Sepulcre, Maria P AU - Sepulcre MP AD - Departamento de Biologia Celular e Histologia, Facultad de Biologia, Universidad de Murcia, 30100, Murcia, Spain; Instituto Murciano de Investigacion Biosanitaria (IMIB)-Arrixaca, 30120, Murcia, Spain; Centro de Investigacion Biomedica en Red de Enfermedades Raras (CIBERER), Instituto de Salud Carlos III, 28029, Madrid, Spain. FAU - Garcia-Moreno, Diana AU - Garcia-Moreno D AD - Departamento de Biologia Celular e Histologia, Facultad de Biologia, Universidad de Murcia, 30100, Murcia, Spain; Centro de Investigacion Biomedica en Red de Enfermedades Raras (CIBERER), Instituto de Salud Carlos III, 28029, Madrid, Spain. FAU - Cayuela, Maria L AU - Cayuela ML AD - Instituto Murciano de Investigacion Biosanitaria (IMIB)-Arrixaca, 30120, Murcia, Spain; Centro de Investigacion Biomedica en Red de Enfermedades Raras (CIBERER), Instituto de Salud Carlos III, 28029, Madrid, Spain; Hospital Clinico Universitario Virgen de la Arrixaca, 30120, Murcia, Spain. FAU - Mulero, Victoriano AU - Mulero V AD - Departamento de Biologia Celular e Histologia, Facultad de Biologia, Universidad de Murcia, 30100, Murcia, Spain; Instituto Murciano de Investigacion Biosanitaria (IMIB)-Arrixaca, 30120, Murcia, Spain; Centro de Investigacion Biomedica en Red de Enfermedades Raras (CIBERER), Instituto de Salud Carlos III, 28029, Madrid, Spain. Electronic address: vmulero@um.es. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Review DEP - 20230418 PL - United States TA - Dev Comp Immunol JT - Developmental and comparative immunology JID - 7708205 RN - 0 (Lipopolysaccharides) RN - 0 (Toll-Like Receptor 4) RN - 0 (Lymphocyte Antigen 96) SB - IM MH - Animals MH - *Lipopolysaccharides MH - *Toll-Like Receptor 4/metabolism MH - Signal Transduction MH - Fishes MH - Immunity, Innate MH - Lymphocyte Antigen 96 MH - Mammals OTO - NOTNLM OT - Inflammation OT - Innate immunity OT - LPS OT - MD1 OT - MD2 OT - RP105 OT - TLR4 OT - Zebrafish COIS- Declaration of competing interest No potential conflict of interest was reported by the authors. EDAT- 2023/04/21 00:42 MHDA- 2023/05/29 06:42 CRDT- 2023/04/20 19:25 PHST- 2023/03/02 00:00 [received] PHST- 2023/04/03 00:00 [revised] PHST- 2023/04/10 00:00 [accepted] PHST- 2023/05/29 06:42 [medline] PHST- 2023/04/21 00:42 [pubmed] PHST- 2023/04/20 19:25 [entrez] AID - S0145-305X(23)00080-0 [pii] AID - 10.1016/j.dci.2023.104710 [doi] PST - ppublish SO - Dev Comp Immunol. 2023 Aug;145:104710. doi: 10.1016/j.dci.2023.104710. Epub 2023 Apr 18.