Effects of pathogen Vibrio harveyi infection on DNA methylation of IL-6 gene in tiger puffer Takifugu rubripes
WANG Chenshi, HUANG Xindi, CUI Xiaoyu, NI Ping, YE Shigen, WANG Hua, GAO Dongxu, LEI Wei
1.College of Fisheries and Life Science, Dalian Key Laboratory of Marine Animal Disease Control and Prevention, Key Laboratory of Mariculture & Stock Enhancement in North China’s Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian 116023, China; 2.National Marine Environmental Monitoring Center, Dalian 116023, China
Abstract: To investigate effect of pathogen Vibrioharveyi infection on DNA methylation of the interleukin-6(IL-6)gene in tiger puffer Takifugurubripes, tiger puffer with body mass of(100.5±10.8)g was exposed to clean sea water(control group)and V.harveyi(107 cfu/mL)(treatment group)for 12 h and then transferred to clean sea water without pathogens for 7 d when histological changes,and the relative expression level of IL-6, and DNA methylation levels and patterns in the IL-6 promoter region were determined in the spleen of tiger puffer.The results showed that there was a large degree of cell necrosis in the diseased group, and no obvious necrotic areas were found in the non-diseased group.There was significantly higher mRNA level of IL-6 in the spleen in the diseased group than that in the control and non-diseased groups(P<0.05), without significant difference between the control and non-diseased groups(P>0.05).The methylation level of IL-6 was shown to be significantly higher in the spleen of the non-diseased group than that in the diseased group(P<0.05).These findings indicated that tiger puffer chalenged with V.harveyi showed different degrees of disease resistance, which might be involved in significantly different methylation states at the IL-6 promoter.
王晨诗, 黄馨笛, 崔晓玉, 倪萍, 叶仕根, 王华, 高东旭, 雷威. 哈维氏弧菌感染对红鳍东方鲀IL-6基因DNA甲基化的影响[J]. 大连海洋大学学报, 2022, 37(2): 221-226.
WANG Chenshi, HUANG Xindi, CUI Xiaoyu, NI Ping, YE Shigen, WANG Hua, GAO Dongxu, LEI Wei. Effects of pathogen Vibrio harveyi infection on DNA methylation of IL-6 gene in tiger puffer Takifugu rubripes. Journal of Dalian Ocean University, 2022, 37(2): 221-226.