论文题目: | Methylation Entropy Landscape of Chinese long-lived Individuals Reveals Lower Epigenetic Noise Related to Human Healthy Aging |
作者: | Hao-Tian Wang, Fu-Hui Xiao, Zong-Liang Gao, Li-Yun Guo, Li-Qin Yang, Gong-Hua Li, Qing-Peng Kong |
联系作者: | kongqp@mail.kiz.ac.cn |
发表年度: | 2024 |
DOI: | doi: 10.1111/acel.14163 |
摘要: | The transition from ordered to noisy is a significant epigenetic signature of aging and age-related disease. As a paradigm of healthy human aging and longevity, long-lived individuals (LLI, >90 years old) may possess characteristic strategies in coping with the disordered epigenetic regulation. In this study, we constructed high-resolution blood epigenetic noise landscapes for this cohort by a methylation entropy (ME) method using whole genome bisulfite sequencing (WGBS). Although a universal increase in global ME occurred with chronological age in general control samples, this trend was suppressed in LLIs. Importantly, we identified 38,923 genomic regions with LLI-specific lower ME (LLI-specific lower entropy regions, for short, LLI-specific LERs). These regions were overrepresented in promoters, which likely function in transcriptional noise suppression. Genes associated with LLI-specific LERs have a considerable impact on SNP-based heritability of some aging-related disorders (e.g., asthma and stroke). Furthermore, neutrophil was identified as the primary cell type sustaining LLI-specific LERs. Our results highlight the stability of epigenetic order in promoters of genes involved with aging and age-related disorders within LLI epigenomes. This unique epigenetic feature reveals a previously unknown role of epigenetic order maintenance in specific genomic regions of LLIs, which helps open a new avenue on the epigenetic regulation mechanism in human healthy aging and longevity |
刊物名称: | Aging Cell |
论文出处: | https://onlinelibrary.wiley.com/doi/10.1111/acel.14163 |
影响因子: | 7.8(2022IF) |