Objective(s): To observe and determine the effect and mechanism of psoralen on tumor necrosis factor-α (TNF-α)-induced muscle atrophy.Materials and Methods: Three sets of C2C12 cells, including blank control, TNF-α (10 or 20 ng/ml) treatment and a TNF-α (10 or 20 ng/ml) plus psoralen (80 μM) administration were investigated. Cell viabili...

Cell lines with high passage numbers exhibit alterations in cell morphology and functions. In the present work, C2C12 skeletal muscle cells with either low (< 20) or high (> 60) passage numbers (identified as 1-C2C12 or h-C2C12, respectively) were used to investigate the apoptotic response to H2O2 as a function of culture age h-C2C12. We found that older cultures (h-C2C12 group) were depleted o...

Paraquat is one of herbicides, known to have toxicity in animals and human. It has been reported that paraquat injures lungs and also induces abnormal differentiations in muscle cells. This suggests the possibility that paraquat perturbs the differentiation of muscle. In this study, we examined the effects of paraquat on the differentiation of C2C12 cells, mouse myoblast. In presence of paraqua...

Background and Aims: Ferula Assafoetida is an antioxidant plant which has long been used in Iranian traditional medicine. Recently, it has been reported to have hypoglycemic and hyperinsulinemic effects, but the molecular mechanism of this effect have not been sufficiently described. This study was a step to evaluate the molecular mechanism of Ferula assafoetida action as an antihyperglycemic a...

During bone remodeling, degradation of skeletal connective tissue is regulated, at least in part, by the balance between matrix metalloproteinases (MMPs) and tissue inhibitors of matrix metalloproteinase (TIMPs), their natural inhibitors. Recently, the Wnt signaling pathway has been demonstrated to play a crucial role in the regulation of bone formation. Here, we investigated a potential role f...

The loss of muscle mass in alcoholic myopathy may reflect alcohol inhibition of myogenic cell differentiation into myotubes. Here, using a high content imaging system we show that ethanol inhibits C2C12 myoblast differentiation by reducing myogenic fusion, creating smaller and less complex myotubes compared with controls. Ethanol administration during C2C12 differentiation reduced MyoD and myog...

It is well known that Phellinus linteus, which produces hispidin and its derivatives, possesses antioxidant activities. In this study, we investigated whether hispidin has protective effects on palmitate-induced oxidative stress in C2C12 skeletal muscle cells. Our results showed that palmitate treatment in C2C12 myotubes increased ROS generation and cell death as compared with the control. Howe...

CSX/Nkx2.5 transcription factor plays a pivotal role in cardiac development; however, its role in development and differentiation of other organs has not been investigated. In this study, we used C2C12 myoblasts and human fetal primary myoblasts to investigate the function of Nkx2.5 in skeletal myogenesis. The expression levels of Nkx2.5 decreased as C2C12 myoblasts elongated and fused to form ...