Modulatory effects of cell–cell interactions between porcine skeletal muscle satellite cells and fibroblasts on the expression of myogenesis-related genes

Co-culture is mimicked in vivo condition, which is influenced by adjacent cells. This study aimed to determine different myogenic genes in mono- and co-culture of satellite cells and fibroblasts. Fibroblasts and satellite cells were isolated from the piglet’s thigh muscles. The expression of PAX-7, MyoD, MyoG, and PAX-3 was downregulated in 24 h co-culture satellite cells than in monoculture. The expression of Myf-5 and CAV-1 was upregulated in 24 h co-culture satellite cells than in 24 h monoculture. The expression of PAX-7, MyoD, and Myf-5 was downregulated in 24 and 48 h co-culture fibroblasts than 24 h monoculture. The expression of MyoG and PAX-3 was upregulated in 24 and 48 h co-culture than 48 h monoculture fibroblasts. The Cyto-C was downregulated in 24 and 48 h co-culture fibroblast than 24 h monoculture. The expression of MyoG and CAV-1 was upregulated in 48 h incubation period co-culture fibroblasts than 24 h monoculture. The MyoD and CAV-1 expression were upregulated in 24 h co-culture than 24 h satellite cells and fibroblasts. The Bcl-2 and BAX were downregulated in 48 h co-culture than 24 h. This result recommended that the satellite cells and fibroblasts interaction enhance the myogenesis marker expression without cellular morphology change.