Petry Bruna, Moreira Gabriel Costa Monteiro, Copola Aline Gonçalves Lio, de Souza Marcela Maria, da Veiga Fernanda Cristina, Jorge Erika Cristina, de Oliveira Peixoto Jane, Ledur Mônica Corrêa, Koltes James E, Coutinho Luiz Lehmann
Animal Science Department, Luiz de Queiroz College of Agriculture (ESALQ), University of São Paulo, Piracicaba, Brazil.
Department of Morphology, Institute of Biological Sciences, Federal University of Minas Gerais (UFMG), Belo Horizonte, Brazil.
Front Genet. 2021 Sep 27;12:709937. doi: 10.3389/fgene.2021.709937. eCollection 2021.
Animals with muscle hypertrophy phenotype are targeted by the broiler industry to increase the meat production and the quality of the final product. Studies characterizing the molecular machinery involved with these processes, such as quantitative trait loci studies, have been carried out identifying several candidate genes related to this trait; however, validation studies of these candidate genes in cell culture is scarce. The aim of this study was to evaluate as a candidate gene for muscle development and to validate its function in cell culture . The gene was downregulated in C2C12 muscle cell culture using siRNA technology to evaluate its impact on morphometric traits and gene expression by RNA-seq analysis. Modulation of expression increased C2C12 myotube area, indicating a role in muscle hypertrophy. RNA-seq analysis identified several upregulated genes annotated in muscle development in treated cells (SAP30-knockdown), corroborating the role of gene in muscle development regulation. Here, we provide experimental evidence of the involvement of gene as a regulator of muscle cell hypertrophy.
具有肌肉肥大表型的动物是肉鸡产业的目标,以提高肉类产量和最终产品质量。已经开展了表征参与这些过程的分子机制的研究,如数量性状位点研究,确定了几个与该性状相关的候选基因;然而,在细胞培养中对这些候选基因的验证研究却很少。本研究的目的是评估作为肌肉发育的候选基因,并在细胞培养中验证其功能。使用siRNA技术在C2C12肌肉细胞培养中下调基因,以通过RNA测序分析评估其对形态计量学特征和基因表达的影响。基因表达的调节增加了C2C12肌管面积,表明其在肌肉肥大中起作用。RNA测序分析在处理过的细胞(SAP30敲低)中鉴定出几个在肌肉发育中注释上调的基因,证实了基因在肌肉发育调节中的作用。在这里,我们提供了基因作为肌肉细胞肥大调节因子参与的实验证据。