期刊
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
卷 69, 期 15, 页码 4490-4500出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.jafc.0c07018
关键词
unsaturated fatty acid; circ11103; miR-128; PPARGC1A; bovine mammary epithelial cell
资金
- National Natural Science Foundation of China [31802035, 31872324, 31702095]
This study investigated the impact of fatty acid content on milk quality and identified the regulatory role of miR-128 and circ11103 in milk fat metabolism. The findings provide new insights into improving milk quality.
The quality of milk is inseparable from its milk components, and fatty acid content is a key factor affecting the quality of milk. In this study, the miRNA and mRNA profiles of the bovine mammary gland tissue during the dry period and the peak lactation period were determined through high-throughput sequencing. In total, 72 miRNA-mRNA regulatory pathways were screened, including miR-128/PPARGC1A regulatory pathways. miR-128 can directly target PPARGC1A and inhibit its expression. In addition, the study also observed that there was a miR-128 binding site in the sequence of the circular RNA circ11103, and circ11103 significantly reduced the expression of miR-128. circ11103 upregulated the triglyceride levels in bovine mammary epithelial cells (BMECs) and increased the contents of unsaturated fatty acids. However, miR-128 decreased triglyceride and cholesterol levels in BMECs. This study aims to analyze the mechanism governing the regulatory effect of circ11103 on milk fat metabolism, which provides new insights into improving milk quality.
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