Journal
POULTRY SCIENCE
Volume 101, Issue 2, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.psj.2021.101557
Keywords
miR-29b-1-5p; ANKRD9; chicken primary myoblast; muscle development
Categories
Funding
- National Natural Science Foundation of China [32072692, 31572356]
- Scientific Studio of Zhongyuan Scholars [30601985]
- Key Science and Technology Research Project of Henan Province [151100110800]
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miR-29b-1-5p inhibits the proliferation and promotes the differentiation of primary chicken myoblasts, and is involved in the process of muscle development. Its effective target gene is ANKRD9.
Several recent studies investigated the role of the miR-29 family in muscle development. However, only a few studies focused on chicken skeletal muscle. In the present study, cell cycle, 5-ethynyl-2'-deoxyuridine (EdU), cell counting kit-8 (CCK-8), and other assays indicated that miR-29b-1-5p can inhibit the proliferation of chicken primary myoblasts (CPMs); the western blot assay and immunofluores-cence detection of MYHC demonstrated that miR-29b1-5p can promote the differentiation of myoblasts. The functional enrichment analysis revealed that the target genes of miR-29b-1-5p may be involved in muscle tissue development, muscle organ development, and striated muscle tissue development, which are biological processes related to muscle development. The correlation analysis showed that these 6 genes, that is, ankyrin repeat domain 9 (ANKRD9), lactate dehydrogenase A (LDHA), transcription factor 12 (TCF12), FAT atypical cadherin 1 (FAT1), lin-9 homolog (LIN9), and integrin beta 3 binding protein (ITGB3BP), can be used as effective candidate target genes of miR-29b1-5p. Moreover, miR-29b-1-5p inhibits the expression of ANKRD9 by directly binding the 30UTR of ANKRD9. Overall, these data indicate that miR-29b-15p inhibits the proliferation of primary chicken myoblasts, stimulates their differentiation, and is involved in the process of muscle development and that its effective target gene is ANKRD9. This study identified the molecular mechanism of miR-29b-1-5p in chicken muscle development.
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