PMID- 19049879 OWN - NLM STAT- MEDLINE DCOM- 20090304 LR - 20090216 IS - 1095-9947 (Electronic) IS - 1050-4648 (Linking) VI - 26 IP - 2 DP - 2009 Feb TI - Molecular cloning and expression of MyD88 in large yellow croaker, Pseudosciaena crocea. PG - 249-55 LID - 10.1016/j.fsi.2008.10.014 [doi] AB - Myeloid differentiation factor 88 (MyD88) is an adaptor protein involved in the interleukin-1 receptor and Toll-like receptor-induced activation of nuclear factor-kappaB (NF-kappaB). In this report, the full-length cDNA of MyD88 was cloned from the large yellow croaker, Pseudosciaena crocea. It was of 1574 bp, including a 5'-terminal untranslated region (UTR) of 89 bp, a 3'-terminal UTR of 621bp and an open reading frame (ORF) of 864 bp encoding a polypeptide of 287 amino acids. It contained a typical death domain at the N-terminal and a conservative Toll/IL-1R (TIR) domain structure at the C-terminal. The quantitative real-time reverse transcription PCR analysis revealed a broad expression of MyD88 with the highest expression in the spleen and the weakest expression in the muscle. The expression of MyD88 after challenge with formalin-inactivated Gram-negative bacterium Vibrio parahaemolyticus was tested in blood, spleen and liver. It suggested that the highest expression was in the spleen (p<0.05) with 1.9 times (at 48 h) as much as that in the control and the lowest expression of MyD88 was in the liver (p<0.05) with 0.29 times (at 3h) of that in the control. These results indicated that as a universal key adaptor in the Toll-like receptor pathway in mammals, MyD88 might play an important role in large yellow croaker defense against pathogenic infection. FAU - Yao, Cui-Luan AU - Yao CL AD - Key Laboratory of Science and Technology for Aquaculture and Food Safety of Fujian Province University, Fisheries College/Fisheries Biotechnology Institute, Jimei University, Xiamen 361021, China. FAU - Kong, Peng AU - Kong P FAU - Wang, Zhi-Yong AU - Wang ZY FAU - Ji, Pei-Feng AU - Ji PF FAU - Liu, Xian-De AU - Liu XD FAU - Cai, Ming-Yi AU - Cai MY FAU - Han, Xue-Zhe AU - Han XZ LA - eng SI - GENBANK/EU978950 PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20081117 PL - England TA - Fish Shellfish Immunol JT - Fish & shellfish immunology JID - 9505220 RN - 0 (Myeloid Differentiation Factor 88) SB - IM MH - Amino Acid Sequence MH - Animals MH - Base Sequence MH - Cloning, Molecular MH - Gene Expression Profiling MH - *Gene Expression Regulation MH - Liver/immunology MH - Molecular Sequence Data MH - Myeloid Differentiation Factor 88/blood/chemistry/*genetics/*immunology MH - Perciformes/classification/*genetics/*immunology MH - Phylogeny MH - Sequence Alignment MH - Sequence Homology, Amino Acid MH - Spleen/immunology MH - Vibrio Infections/immunology/veterinary MH - Vibrio parahaemolyticus/immunology EDAT- 2008/12/04 09:00 MHDA- 2009/03/05 09:00 CRDT- 2008/12/04 09:00 PHST- 2008/08/06 00:00 [received] PHST- 2008/10/19 00:00 [revised] PHST- 2008/10/27 00:00 [accepted] PHST- 2008/12/04 09:00 [pubmed] PHST- 2009/03/05 09:00 [medline] PHST- 2008/12/04 09:00 [entrez] AID - S1050-4648(08)00255-6 [pii] AID - 10.1016/j.fsi.2008.10.014 [doi] PST - ppublish SO - Fish Shellfish Immunol. 2009 Feb;26(2):249-55. doi: 10.1016/j.fsi.2008.10.014. Epub 2008 Nov 17.