Proteome of amino acids or IGF1-stimulated pacu muscle cells offers molecular insights and suggests FN1B and EIF3C as candidate markers of fish muscle growth

Autor(es)

Perez, Erika S. ; Ribeiro, Rafaela A. ; Zanella, Bruna T. T. ; Almeida, Fernanda L. A. ; Blasco, Josefina ; de la Serrana, Daniel Garcia ; Dal-Pai-Silva, Maeli ; Duran, Bruno O. S.

• Tipo de documento: Artigo Científico
• Fonte: Biochemical and Biophysical Research Communications; v. 757, p. 15-pg., 2025-04-09.

Resumo

Study of fish skeletal muscle is essential to understand physiological or metabolic processes, and to develop programs searching for increased muscle mass and meat production. Amino acids (AA) and IGF1 stimulate processes that lead to muscle growth, but their signaling pathways and molecular regulation need further clarification in fish. We obtained the proteome of pacu (Piaractus mesopotamicus) cultured muscle cells treated with AA or IGF1, which induced the differential abundance of 67 and 53 proteins, respectively. Enrichment analyses showed that AA modulated histone methylation, cell differentiation, and metabolism, while IGF1 modulated ATP production and protein synthesis. In addition, we identified molecular networks with candidate markers that commonly regulate fish muscle cells: FN1B and EIF3C, respectively up- and down-regulated by both treatments. FN1B was related to cell proliferation, protein synthesis, and muscle repair, while EIF3C connected with negative regulators of muscle growth. Their gene expression was evaluated in pacu and Nile tilapia (Oreochromis niloticus) after nutrient manipulation, with fn1b increased during refeeding and eif3c increased during fasting in both species. Our work helps clarify the molecular regulation by AA or IGF1 and suggests that FN1B and EIF3C could be potential stimulatory and inhibitory biomarkers of fish muscle growth. (AU)

• Processo FAPESP: 18/26428-0 - Compreensão das interações entre o fosfoproteoma, transcriptoma e microRNAoma em resposta a sinais pró-crescimento em miotubos de pacu (Piaractus mesopotamicus) e gilthead sea bream (Sparus aurata).
• Beneficiário: Maeli Dal Pai
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 18/24575-6 - Análises integrativas e comparativas do fosfoproteoma de culturas celulares de mioblastos do pacu (Piaractus mesopotamicus) e gilthead seabream (Sparus aurata) submetidas a tratamentos com fatores de crescimento.
• Beneficiário: Bruno Oliveira da Silva Duran
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado