Article
Long non-coding RNAs are differentially expressed after different exercise training programs
Registro en:
BONILAURI, Bernardo; DALLAGIOVANNA, Bruno. Long non-coding RNAs are differentially expressed after different exercise training programs. Front. Physiol. V.11, n. 567614, p. 1-10, 2020.
1664-042X
10.3389/fphys.2020.567614
Autor
Bonilauri, Bernardo
Dallagiovanna, Bruno
Resumen
Molecular regulation related to the health benefits of different exercise modes remains unclear. Long non-coding RNAs (lncRNAs) have emerged as an RNA class with regulatory functions in health and diseases. Here, we analyzed the expression. of lncRNAs after different exercise training programs and their possible modes of action related to physical exercise adaptations. As methods: Public high-throughput RNA-seq data (skeletal muscle biopsies) were downloaded, and bioinformatics analysis was performed. We primarily analyzed data reports of 12 weeks of resistance training (RT), high-intensity interval training (HIIT), and combined (CT) exercise training. In addition, we analyzed data from 8 weeks of endurance training (ET). Differential expression analysis of lncRNAs was performed, and an adjusted P-value < 0.1 and log2 (fold change) ≥0.5 or ≤−0.5 were set as the cutoff values to identify differentially expressed lncRNAs (DELs). In the results: We identified 204 DELs after 12 weeks of HIIT, 43 DELs after RT, and 15 DELs after CT. Moreover, 52 lncRNAs were differentially expressed after 8 weeks of ET. The lncRNA expression pattern after physical exercise was very specific, with distinct expression profiles for the different training programs, where few lncRNAs were common among the exercise types. LncRNAs may regulate molecular responses to exercise, such as collagen fibril organization, extracellular matrix organization, myoblast and plasma membrane fusion, skeletal muscle contraction, synaptic transmission, PI3K and TORC regulation, autophagy, and angiogenesis. Conclusion: For the first time, we show that lncRNAs are differentially expressed in skeletal muscle after different physical exercise programs, and these lncRNAs may act in various biological processes related to physical activity adaptations.