2013 Fiscal Year Final Research Report
Spermatogenesis disturbance due to aberrant DNA methylation and its impact on fertility treatment
| Project/Area Number |
24791638
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Urology
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| Research Institution | Kanazawa University |
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Principal Investigator |
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Keywords | エピジェネティクス / メチル化 / 不妊症 / 精子 |
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| Research Abstract |
The GTF2A1L gene promoter contains the DNA methylation site of a tissue-specific differentially methylated region (TDMR). Eighty-six patients with non-obstructive azoospermia were assessedfor the DNA methylation state of CpG islands in the GTF2A1L promoter using testicular genomic DNA. Based on histological criteria, 17 of the 86 patients had hypospermatogenesis. Patients with hypospermatogenesis were divided into two subgroups: high DNA methylation(HM, n=5) and low DNA methylation (LM, n=12). The GTF2A1L TDMR methylation rate differed significantly between the HM and LM groups (P=0.0019), and GTF2A1L expression was significantly higher among the LM than in the HM patients (P=0.023). High TDMR methylation was correlated with low GTF2A1L gene expression levels. Both groups demonstrated relatively good outcomes with respect to sperm retrieval, fertilisation, pregnancy and childbirth rates. We observed that aberrant GTF2A1L gene expression was not correlated with fertilisation rates.
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Research Products
(1 results)
