Abstract
Objective
Programmed cell death-1 (PD-1, Pdcd1), an immunoreceptor belonging to the CD28/CTLA-4 family negatively regulates antigen receptor signalling by recruiting protein tyrosine phosphatase, SHP-2 upon interacting with either of two ligands, PD-L1 or PD-L2. This study investigates PD-1 gene polymorphism in patients with antisperm antibody-related infertility
Methods
Genotyping was performed by polymerase chain reaction and restriction enzyme digestion (PCR-RFLP), this polymorphism was genotyped in 145 Iranian subjects (61 patients with antisperm antibody-related infertility and 84 healthy controls).
Results
Patients frequencies of the G/A genotype in comparison with healthy controls (38.2 % vs. 32.7 %, OR =1.21, P = 0.35) were not significantly different. However, G/G and A/A genotype frequencies between patients and healthy controls were significantly different (P = 0.042, P = 0.00001, respectively). Also, allele frequencies of this polymorphism were significantly different (P = 0.0012) in patients compared to healthy controls.
Conclusion
According to these results, there is a correlation between PD-1 gene polymorphism and susceptibility to antisperm antibody-related infertility in our study group.
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We are grateful to the ASA-related patients and the healthy blood donors who provided blood samples for this research.
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Capsule Anti-sperm antibodies (ASA) production is a result of an abnormal immune condition and can cause infertility in men. We found a significant correlation between PD-1.3 genotypes and risk of ASA-related infertility. These findings raises interests for further investigation to the mechanism of PD-1/PD-1 ligand interaction in the development of ASA.
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Zamani, M.R., Asbagh, F.A., Massoud, A.H. et al. Association between a PD-1 gene polymorphism and antisperm antibody-related infertility in Iranian men. J Assist Reprod Genet 32, 103–106 (2015). https://doi.org/10.1007/s10815-014-0371-4
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DOI: https://doi.org/10.1007/s10815-014-0371-4