EXPRESSION LEVEL OF CHROMODOMAIN Y (CDY): POTENTIAL MARKER FOR PREDICTION OF SPERM RECOVERY IN NON-OBSTRUCTIVE AZOOSPERMIA

Iranian journal of reproductive medicine

FAVAEDI RAHA¹  SADIGHI GILANI MOHAMMAD ALI¹  HEYDARIAN NEDA¹  SHAHHOSEINI MARYAM¹ 

关键词: AZOOSPERMIA;    CDY1;    GENE EXPRESSION;    MARKER;   

DOI  :  

学科分类：药学、药理学、毒理学（综合）

来源: Shahid Sadoughi University of Medical Sciences, Yazd

【 摘 要 】

Background: The availability of testis specific genes will be of help in choosing the most promising biomarkers for the detection of testicular sperm retrieval in patients with non-obstructive azoospermia (NOA). Testis specific chromodomain protein Y 1 (CDY1) is a histone acetyltransferase which concentrates in the round spermatid nucleus, where histone hyperacetylation occurs and causes the replacement of histones by the sperm-specific DNA packaging proteins, TNPs and PRMs.Objective: The aim was to evaluate CDY1 gene as a marker for predicting of successful sperm retrieval in NOA patients.Materials and Methods: This research was conducted on 29 patients with NOA who had undergone testicular sperm extraction (TESE) procedure. NOA patients were subdivided into patients with successful sperm retrieval (NOA+, n=12) and patients with unsuccessful sperm retrieval (NOA-, n=17). Relative expression of CDY1 gene and chromatin incorporation of CDY1 protein were measured by quantitative real-time polymerase chain reaction (qRT-PCR) and ELISA assay, respectively.Results: Quantification of mRNA relative expression and incorporation of CDY1 protein in chromatin showed significant lower expressions and protein levels of CDY1 in testis tissues of NOA- in comparison to NOA+group.Conclusion: The findings in this study demonstrated a correlation between the low levels of CDY1 function and unsuccessful sperm recovery in the testicular tissues of NOA- compared to NOA+patients. Therefore, it can be reasonable to consider CDY1 as a potential biomarker for predicting the presence of spermatozoa, although the claim needs more samples to be confirmed.

【 授权许可】

Unknown