文献类型： 外文期刊
作者： Liu, Hao 1 ; Shi, Wenshu 2 ; Zhang, Xing 2 ; He, Xinmiao 3 ; Zhao, Xingbo 2 ;
作者机构： 1.Zhejiang Univ, Sir Run Run Shaw Hosp, Dept Gastroenterol, Sch Med, Hangzhou, Peoples R China
2.China Agr Univ, State Key Lab Anim Biotech Breeding, Beijing, Peoples R China
3.Heilongjiang Acad Agr Sci, Inst Anim Husb, Haerbin, Peoples R China
关键词： Sex; porcine; mitochondrion; reactive oxygen species; oxygen consumption rate
期刊名称：ANIMAL BIOTECHNOLOGY （ 影响因子：1.8； 五年影响因子：2.0 ）
ISSN： 1049-5398
年卷期： 2025 年 36 卷 1 期
页码：
收录情况： SCI
摘要： In pigs, the effect of sex on production and reproductive traits has been largely reported, however, whether sex exerts its influence through regulating mitochondrial function is still unclear. In this study, we constructed 15 male cells and 15 female fibroblasts derived from 35-day and 50-day fetuses, newborn piglets and 1-year-old pigs to identify the sex effect on mitochondrial functions. Results indicated significant differences on cellular and molecular characteristics between male and female cells, including energy metabolic trait, mitochondrial DNA (mtDNA) replication and transcription, and mRNA expressions of mitochondrial biogenesis genes and mitoprotease genes. Referring to sex, males exhibited significantly higher oxygen consumption rate productions, levels of reactive oxygen species (ROS) and mtDNA copy numbers than those with females in muscle and ear fibroblasts. And the expressions of mtDNA, mitochondrial biogenesis genes (POLG, PPARGC1A, TFAM and TWNK) and XPNPEP3 were higher in males than females in ear fibroblasts derived from 1-year-old adult pigs (EFA cells). While, the cell proliferation and expressions of genes related to ROS metabolism were not influenced by sex. The results highlight the effect of sex on mitochondrial function and gene expression, and provide important data for a comprehensive understanding of the mechanisms underlying sex regulation of energy metabolism-related traits in pigs.
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