文献类型： 外文期刊
作者： Mu, Qiaoqiao 1 ; Miao, Linghong 1 ; Qian, Linjie 1 ; Lin, Yan 2 ; Jiang, Wenqiang 1 ; Ge, Xianping 2 ;
作者机构： 1.Nanjing Agr Univ, Wuxi Fisheries Coll, Wuxi 214081, Peoples R China
2.Chinese Acad Fishery Sci, Freshwater Fisheries Res Ctr, Key Lab Freshwater Fisheries & Germplasm Resources, Minist Agr & Rural Affairs, Wuxi 214081, Peoples R China
3.Nanjing Agr Univ, Wuxi Fisheries Coll, Shanshui East Rd 9, Wuxi 214081, Peoples R China
关键词： Megalobrama amblycephala; sirt1; foxO1; Glucose metabolism; Interaction
期刊名称：GENE （ 影响因子：3.5； 五年影响因子：3.3 ）
ISSN： 0378-1119
年卷期： 2024 年 903 卷
页码：
收录情况： SCI
摘要： Both silent information regulator 2 homolog 1 (sirt1) and forkhead box transcription factor 1 (foxO1) are crucial transcription factors involved in glucolipid metabolism and energy regulation. The presnt study aimed to understand their regulatory roles in glucose metabolism. Molecular cloning and sequencing of sirt1 gene of Megalobrama amblycephala (masirt1) was conducted and cellular localization of both the factors were analysed. Their effects and action patterns in the glucose metabolism of Megalobrama amblycephala (M. amblycephala) were investigated through acute and long-term glucose tolerance assays. The results revealed that the full-length masirt1 cDNA sequence was 2350 bp and closely related to Sinocyclocheilus rhinocerous. Sirt1 and foxO1 were found to be mutually dependent and localized in the nucleus. Acute glucose tolerance tests revealed that the expression levels of both factors in the liver of M. amblycephala showed an initial increase followed by a decrease. Plasma glucose levels in M. amblycephala significantly increased at 2 and 12 h (P < 0.05). In a long-term breeding experiment with high-sugar feeding, the expressions of the sirt1 and foxO1 genes in the kidney and intestine of M. amblycephala exhibited synergistic changes. The 51WS groups had significantly higher levels of sirt1 and foxO1 gene expression in the kidney and intestine compared to the 0WS and 17WS groups (P < 0.05). Overall, masirt1 is evolutionarily highly conserved, and the interaction site of sirt1 and foxO1 is located in the nucleus. In long-term hyperglycemic regulation, sirt1 and foxO1 exhibit synergistic regulatory effects in the kidney and intestine of M. amblycephala. This study provides insights into how sirt1 and foxO1 regulate glucose metabolism in M. amblycephala.
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