Why the study?
This study aimed to clone the full-length open reading frame of the goat ANGPTL8 gene, reveal its molecular and expression characteristics, and explore its effect on the differentiation of goat intramuscular preadipocytes.
ANGPTL8 may regulate lipid accumulation via PPARγ and C/EBPβ in goat adipocytes.
ANGPTL8 knockdown modestly affects goat preadipocyte lipid deposition; leaves open its regulatory role for intramuscular fat in breeding.
This study aimed to clone the full-length open reading frame (ORF) of goat ANGPTL8 gene sequence, reveal its molecular and expression characteristics, and explore its effect on the differentiation of goat intramuscular preadipocytes. The full-length ORF sequence of goat ANGPTL8 gene was cloned by RT-PCR technology, and bioinformatics analysis was performed by related biological software. RT-qPCR was used to detect the expression of ANGPTL8 mRNA in goat tissues. Further use of RNA interference to study the effect of ANGPTL8 on the differentiation of goat intramuscular preadipocytes. The total length of the ANGPTL8 gene nucleotide sequence is 717 bp, including 597 bp of ORF, encoding 198 amino acids. Goat ANGPTL8 has the closest relationship with sheep, it was widely expressed in different tissues, and relatively enriched in liver. The silence of ANGPTL8 inhibited the accumulation of lipid droplets by 5.76% in goat intramuscular preadipocytes (p > 0.05) and significantly suppressed the expression of the genes related to preadipocytes differentiation, fatty acid synthesis and transport (p＜0.05 or p＜0.01). These data illuminate the speculation that ANGPTL8 may involve in the lipid accumulation regulation via the control of PPARγ and C/EBPβ in goat adipocytes.
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Huang et al. (2021) studied this question.
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