Title:In vitro Pretreatment with Zinc Alleviates the Adverse Effects of Tetrahydrocannabinol
on Cultured Mouse Sertoli Cells: Role of Anti-apoptotic and
Antioxidant Activities
Volume: 23
Issue: 13
Author(s): Kimia Ahmadi, Fatemeh Asgharzadeh, Shadi Mohammadpour-Asl, Fatemeh Ayari, Fatemeh Rahbar, Morteza Motazakker, Shiva Roshan-Milani and Amin Abdollahzade Fard*
Affiliation:
- Department of Physiology, Nephrology and
Kidney Transplant Research Center, Clinical Research Institute, Urmia University of Medical Sciences, Urmia, Iran
Keywords:
Apoptosis, caspase 3, PDGF-A, sertoli cell, SOD, tetrahydrocannabinol, zinc.
Abstract:
Background: Global rise in cannabis abuse during reproductive years has placed a large
number of men at risk for the adverse consequences of δ-9-tetrahydrocannabinol (THC), the primary
active component of cannabis. It has been reported that THC affects male fertility and causes
testicular cell dysfunction and apoptosis. This study aimed to investigate the possible protective
role of zinc pretreatment against the toxic effects of THC in cultured mouse Sertoli cells and the
underlying mechanism.
Methods: The Mus Musculus Sertoli cell line (TM4) was cultured, exposed to THC alone (470 μM,
24 h), co-administered with zinc (8 μM, 48 h), and investigated in three groups: control, THC, and
THC + zinc. The MTT was performed to evaluate cell viability. TUNEL assay was also applied for
the detection of cell apoptosis and a western blot was performed for measuring protein expression
levels of Caspase3, Pro-caspase3, SOD, and PDGF-A.
Results: THC significantly decreased cell viability (p < 0.001) and expression levels of SOD,
PDGF-A, and pro-caspase3 proteins (p < 0.05 for all), whereas increased Sertoli cells apoptosis (p
< 0.001) and expression level of cleaved caspase3 protein (p < 0.001). Pretreatment with zinc reversed
THC-induced apoptotic and oxidative effects and reduced cleaved caspase3/pro-caspase3
ratio but could not reverse THC-induced reduction of PDGF-A expression level in TM4 cells.
Conclusion: The present data suggest that THC induces Sertoli cell damage through a multitarget
mechanism. Zinc was reported to protect against THC-induced Sertoli cell damage due to its antiapoptotic
and antioxidant activities, indicating its clinical importance against THC-induced testicular
toxicity among addicted men.