Zhang Jian, Cui Yan
College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, China.
Technology and Research Center of Gansu Province for Embryonic Engineering of Bovine and Sheep & Goat, Lanzhou, China.
Front Vet Sci. 2022 Oct 11;9:1022972. doi: 10.3389/fvets.2022.1022972. eCollection 2022.
There are studies on the hypoxia adaptation in yak, but there are few studies on the regulation of ferroptosis by hypoxia. This study was the first time to explore ferroptosis-related genes about hypoxia in yak. In this study, the oviduct epithelial cells between yak and bovine are performed by integrative analysis for functions, regulating network and hub genes. The results showed 29 up-regulated ferroptosis genes and 67 down-regulated ferroptosis genes, and GO-KEGG analysis showed that up-regulated differentially expressed genes (DEGs) were significantly enriched in ribosome pathway and oxidative phosphorylation pathway. Down-regulated DEGs were significantly enriched in longevity regulating pathway-mammal pathway. Mitophagy-Animal Pathway was a significant enrichment pathway for the up-regulated differentially expressed ferroptosis genes (DE-FRGs). HIF-1 signaling pathway is a significant pathway for the down-regulated DE-FRGs. By constructing DE-FRGs protein-protein interaction (PPI) network, 10 hub DE-FRGs (Jun, STAT3, SP1, HIF1A, Mapk1, Mapk3, Rela, Ulk1, CDKN1A, EPAS1) were obtained. The bta-mir-21-5p, bta-mir-10a and bta-mir-17-5p related to STAT3 were predicted. The results of this study indicated the important genes and pathways of the hypoxia in yak, and it was the first time to study ferroptosis genes and pathways related to the hypoxia adaptation by bulk-seq in yak. This study provided sufficient transcriptome datas for hypoxia adaptation.
关于牦牛低氧适应的研究已有不少,但低氧对铁死亡的调控研究较少。本研究首次探索牦牛低氧相关的铁死亡基因。本研究对牦牛和普通牛的输卵管上皮细胞进行了功能、调控网络及枢纽基因的综合分析。结果显示,有29个铁死亡基因上调,67个铁死亡基因下调,GO-KEGG分析表明上调的差异表达基因显著富集于核糖体途径和氧化磷酸化途径。下调的差异表达基因显著富集于哺乳动物寿命调控途径。线粒体自噬-动物途径是上调的差异表达铁死亡基因的显著富集途径。HIF-1信号通路是下调的差异表达铁死亡基因的显著途径。通过构建差异表达铁死亡基因的蛋白质-蛋白质相互作用(PPI)网络,获得了10个枢纽差异表达铁死亡基因(Jun、STAT3、SP1、HIF1A、Mapk1、Mapk3、Rela、Ulk1、CDKN1A、EPAS1)。预测了与STAT3相关的bta-mir-21-5p、bta-mir-10a和bta-mir-17-5p。本研究结果表明了牦牛低氧的重要基因和途径,并且首次通过批量测序研究牦牛低氧适应相关的铁死亡基因和途径。本研究为低氧适应提供了充分的转录组数据。