The changes of mitochondrial membrane potential detected by confocal microscopy in spermatocyte induced by bisphenol A / 中国医学装备

ABSTRACT

Objective:To detect changes in mitochondrial membrane potential after sperm mother cell damage induced by bisphenol A by laser scanning confocal microscopy(LSCM) and underline its potential action mechanism.Methods: The cultured spermatogenic cells were divided into 3 groups, respectively. Then 0, 10μmol/L, 100μmol/L of Bisphenol A(BPA) were added into the culture, after 3 hours culture, fluorescence probe JC-1 was used to lable the three groups. The fluorescence intensity of JC-1 in mitochondrial was then detected by LSCM. LSCM software was used to analyze the fluorescence intensity. Change of the mitochondrial membrane potential was represented by the change of fluorescence colors (relative proportion of red and green fluorescence is commonly used to measure mitochondrial depolarization ratio). Results:The ratio between the red and green fluorescence in the control group, low dose group and high dose group had significant difference. Intracellular mitochondrial membrane potential of Bisphenol A treatment group was lower than that of the control group, while mitochondrial membrane potential of high dose group was lower than that of the low dose group. Conclusion: Bisphenol A could damage spermatocytes, and as the dose increased, the more serious the injury. The method could real-time monitor with high sensitivity the change of intracellular mitochondrial membrane potential.