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Methylation of the genes ROD1, NLRC5, and HKR1 is associated with aging in Hainan centenarians.


ABSTRACT: BACKGROUND:Human aging is a hot topic in biology, and it has been associated with DNA methylation changes at specific genomic sites. We aimed to study the changes of DNA methylation at a single-CpG-site resolution using peripheral blood samples from centenarians. METHODS:Using Illumina 450 K Methylation BeadChip microarray assays, we carried out a pool-based, epigenome-wide investigation of DNA methylation of blood samples from 12 centenarians and 12 healthy controls. Differentially methylated cytosine-phosphate-guanosine (CpG) sites were selected for further pyrosequencing analysis of blood samples from 30 centenarians and 30 healthy controls. RESULT:We identified a total of 31 high-confidence CpG sites with differential methylation profiles between the groups: 9 (29%) were hypermethylated and 22 (71%) were hypomethylated in centenarians. It was also found that hypermethylation of HKR1 and hypomethylation of ROD1 and NLRC5 genes strongly correlated with age in centenarians. CONCLUSION:Our results indicate that the methylation profile combination of HKR1, ROD1, and NLRC5 could be a promising biomarker for aging in Hainan centenarians.

SUBMITTER: Zeng Q 

PROVIDER: S-EPMC5797414 | biostudies-literature | 2018 Feb

REPOSITORIES: biostudies-literature

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Methylation of the genes ROD1, NLRC5, and HKR1 is associated with aging in Hainan centenarians.

Zeng Qian Q   Chen Xiaoping X   Ning Chaoxue C   Zhu Qiao Q   Yao Yao Y   Zhao Yali Y   Luan Fuxin F  

BMC medical genomics 20180202 1


<h4>Background</h4>Human aging is a hot topic in biology, and it has been associated with DNA methylation changes at specific genomic sites. We aimed to study the changes of DNA methylation at a single-CpG-site resolution using peripheral blood samples from centenarians.<h4>Methods</h4>Using Illumina 450 K Methylation BeadChip microarray assays, we carried out a pool-based, epigenome-wide investigation of DNA methylation of blood samples from 12 centenarians and 12 healthy controls. Differential  ...[more]

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