Aging and Chronic Sun Exposure Cause Distinct Epigenetic Changes in Human Skin

被引：188

作者：

Groenniger, Elke ^{[1
]}

Weber, Barbara ^{[2
]}

Heil, Oliver ^{[3
]}

Peters, Nils ^{[1
]}

Staeb, Franz ^{[1
]}

Wenck, Horst ^{[1
]}

Korn, Bernhard ^{[3
]}

Winnefeld, Marc ^{[1
]}

Lyko, Frank ^{[2
]}

机构：

[1] Beiersdorf AG, Res & Dev, Hamburg, Germany

[2] German Canc Res Ctr, DKFZ ZMBH Alliance, Div Epigenet, D-6900 Heidelberg, Germany

[3] German Canc Res Ctr, Genom & Prote Core Facil, D-6900 Heidelberg, Germany

来源：

PLOS GENETICS | 2010年 / 6卷 / 05期

关键词：

GENE-BODY METHYLATION; DNA METHYLATION; STEM-CELLS; GENOME; CANCER; HYPERMETHYLATION; DIFFERENTIATION; EXPRESSION; EPIDERMIS; FUTURE;

D O I：

10.1371/journal.pgen.1000971

中图分类号：

Q3 [遗传学];

学科分类号：

071007 [遗传学];

摘要：

Epigenetic changes are widely considered to play an important role in aging, but experimental evidence to support this hypothesis has been scarce. We have used array-based analysis to determine genome-scale DNA methylation patterns from human skin samples and to investigate the effects of aging, chronic sun exposure, and tissue variation. Our results reveal a high degree of tissue specificity in the methylation patterns and also showed very little interindividual variation within tissues. Data stratification by age revealed that DNA from older individuals was characterized by a specific hypermethylation pattern affecting less than 1% of the markers analyzed. Interestingly, stratification by sun exposure produced a fundamentally different pattern with a significant trend towards hypomethylation. Our results thus identify defined age-related DNA methylation changes and suggest that these alterations might contribute to the phenotypic changes associated with skin aging.

引用

页数：10

共 44 条

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[3]

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