کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5794532 | 1554307 | 2016 | 8 صفحه PDF | دانلود رایگان |
- We examined the role of Ca2Â + in mitochondrial apoptosis during Eimeria tenella infection.
- Cytosolic [Ca2Â +] and apoptosis increased in chick cecal epithelial cells infected by Eimeria tenella.
- The increases were abolished by blocking extracellular Ca2Â + influx and ER Ca2Â + channel release.
- Restoring Ca2Â + homeostasis can suppress apoptosis induced by Eimeria tenella infection.
In this study, the process of Eimeria tenella-induced apoptosis and the effect of calcium homeostasis were investigated in chick embryo cecal epithelial cells. In particular, we examined cytochrome c release into the cytoplasm, mitochondrial permeability transition pore (MPTP) opening, and changes in [Ca2Â +]c and apoptosis in host cells. Apoptosis, MPTP opening, cytochrome c release, and [Ca2Â +]c in host cells increased following infection. This trend was reversed by blocking the increase in [Ca2Â +]c using BAPTA/AM and EGTA (intra- and extracellular chelators of Ca2Â +, respectively) and by applying heparin sodium and ryanodine (blockers of the inositol triphosphate and ryanodine receptors of the endoplasmic reticulum, respectively). These results indicate that [Ca2Â +]c plays a significant role in host cell mitochondrial apoptosis, which is induced via modulation of extracellular Ca2Â + levels and endoplasmic reticulum Ca2Â + channels. Thus, agents that restore Ca2Â + homeostasis may be useful for managing E. tenella infection in chickens.
Journal: Research in Veterinary Science - Volume 104, February 2016, Pages 166-173