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CircPLXNA2 Affects the Proliferation and Apoptosis of Myoblast through circPLXNA2/gga-miR-12207-5P/MDM4 Axis

文献类型: 外文期刊

作者: Dong, Xu 1 ; Xing, Jiabao 4 ; Liu, Qingchun 1 ; Ye, Mao 1 ; Zhou, Zhen 1 ; Li, Yantao 1 ; Huang, Rongqin 1 ; Li, Zhenhui 1 ; Nie, Qinghua 1 ;

作者机构: 1.South China Agr Univ, Coll Anim Sci, State Key Lab Conservat & Utilizat Subtrop Agrobio, Lingnan Guangdong Lab Agr, Guangzhou 510642, Peoples R China

2.Minist Agr, Guangdong Prov Key Lab Agroanim Genom & Mol Breedi, Guangzhou 510642, Peoples R China

3.Minist Agr, Key Lab Chicken Genet Breeding & Reprod, Guangzhou 510642, Peoples R China

4.South China Agr Univ, Coll Vet Med, Key Lab Zoonosis Prevent & Control Guangdong Prov, Guangzhou 510642, Peoples R China

5.Guangdong Lab Lingnan Modern Agr, Maoming Branch, Maoming 525000, Peoples R China

关键词: myogenesis; apoptosis; circPLXNA2; ceRNA; MDM4; p53

期刊名称:INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES ( 影响因子:5.6; 五年影响因子:6.2 )

ISSN:

年卷期: 2023 年 24 卷 6 期

页码:

收录情况: SCI

摘要: CircRNAs are newly identified special endogenous RNA molecules that covalently close a loop by back-splicing with pre-mRNA. In the cytoplasm, circRNAs would act as molecular sponges to bind with specific miRNA to promote the expression of target genes. However, knowledge of circRNA functional alternation in skeletal myogenesis is still in its infancy. In this study, we identified a circRNA-miRNA-mRNA interaction network in which the axis may be implicated in the progression of chicken primary myoblasts' (CPMs) myogenesis by multi-omics (i.e., circRNA-seq and ribo-seq). In total, 314 circRNA-miRNA-mRNA regulatory axes containing 66 circRNAs, 70 miRNAs, and 24 mRNAs that may be relevant to myogenesis were collected. With these, the circPLXNA2-gga-miR-12207-5P-MDM4 axis aroused our research interest. The circPLXNA2 is highly differentially expressed during differentiation versus proliferation. It was demonstrated that circPLXNA2 inhibited the process of apoptosis while at the same time stimulating cell proliferation. Furthermore, we demonstrated that circPLXNA2 could inhibit the repression of gga-miR-12207-5p to MDM4 by directing binding to gga-miR-12207-5p, thereby restoring MDM4 expression. In conclusion, circPLXNA2 could function as a competing endogenous RNA (ceRNA) to recover the function of MDM4 by directing binding to gga-miR-12207-5p, thereby regulating the myogenesis.

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