Animal bioscience · 2025
CIDEB promotes lipid deposition in goat intramuscular adipocytes.
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Huang Zhuohan, Li Qi, Yang Changheng, Zhang Changhui, Huang Lian, Lin Yaqiu, Wang Yong, Xiang Hua, Zhu Jiangjiang
Аннотация
OBJECTIVE: Cell death-inducing DNA fragmentation factor alpha-like effector B (CIDEB), a family member of Cell death-inducing DFF45-like effectors (CIDEs), is well known as a crucial regulator for lipid metabolic signaling pathways in various metabolic tissues and secretory glands. However, its role in regulating intramuscular fat (IMF) deposition in goat remains unclear.
METHODS: The expression vector pcDNA3.1-CIDEB was constructed and transfected into goat intramuscular preadipocytes; the overexpression and interference efficiency and expression of genes related to lipid metabolism were measured by Real-time polymerase chain reaction; the effect of overexpression of CIDEB and interfering with CIDEB on lipid droplet formation was observed by Oil Red O staining and glycerol phosphate oxidase-Trinder enzymatic reaction. Then RNA-Seq was used to investigate the metabolic pathway of CIDEB affecting adipocyte deposition in goat intramuscular preadipocytes.
RESULTS: Overexpression of CIDEB significantly promoted the lipid droplets accumulation and the triglyceride deposition, and significantly upregulated the expression of genes related to lipid metabolism. After overexpression of CIDEB in goat intramuscular preadipocytes, 171 differentially expressed genes (DEGs) were found, including 122 up-regulated and 49 down-regulated DEGs, and the top three significantly changed pathways filtered by Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis were Cocaine addiction, Amphetamine addiction and Malaria pathways. Conversely, the silencing of CIDEB significantly reduced lipid accumulation in goat intramuscular preadipocytes, meanwhile changing the expression of lipid metabolism genes. For CIDEB silencing, a total of 2140 DEGs were found, including 1252 up-regulated and 888 down-regulated DEGs, and the top three significantly changed pathways filtered by KEGG analysis were Ribosome, Thyroid hormone signaling pathway and Alzheimer disease.
CONCLUSION: The expression of CIDEB can significantly promote lipid deposition of intramuscular adipocytes in goats, and these results provide important data to support further clarifying the mechanism of CIDEB gene on the regulation of intramuscular adipogenesis, and the IMF formation in goats.
METHODS: The expression vector pcDNA3.1-CIDEB was constructed and transfected into goat intramuscular preadipocytes; the overexpression and interference efficiency and expression of genes related to lipid metabolism were measured by Real-time polymerase chain reaction; the effect of overexpression of CIDEB and interfering with CIDEB on lipid droplet formation was observed by Oil Red O staining and glycerol phosphate oxidase-Trinder enzymatic reaction. Then RNA-Seq was used to investigate the metabolic pathway of CIDEB affecting adipocyte deposition in goat intramuscular preadipocytes.
RESULTS: Overexpression of CIDEB significantly promoted the lipid droplets accumulation and the triglyceride deposition, and significantly upregulated the expression of genes related to lipid metabolism. After overexpression of CIDEB in goat intramuscular preadipocytes, 171 differentially expressed genes (DEGs) were found, including 122 up-regulated and 49 down-regulated DEGs, and the top three significantly changed pathways filtered by Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis were Cocaine addiction, Amphetamine addiction and Malaria pathways. Conversely, the silencing of CIDEB significantly reduced lipid accumulation in goat intramuscular preadipocytes, meanwhile changing the expression of lipid metabolism genes. For CIDEB silencing, a total of 2140 DEGs were found, including 1252 up-regulated and 888 down-regulated DEGs, and the top three significantly changed pathways filtered by KEGG analysis were Ribosome, Thyroid hormone signaling pathway and Alzheimer disease.
CONCLUSION: The expression of CIDEB can significantly promote lipid deposition of intramuscular adipocytes in goats, and these results provide important data to support further clarifying the mechanism of CIDEB gene on the regulation of intramuscular adipogenesis, and the IMF formation in goats.