DNA METHYLATION BIOMARKER OF AGING FOR HUMAN EX VIVO AND IN VIVO STUDIES

DNA methylation (DNAm) based biomarkers of aging have been developed for many tissues and organs. However, these biomarkers have sub-optimal accuracy in skin cells, fibroblasts and other cell types that are often used in ex vivo studies. To address this challenge, we analyzed DNA methylation array d...

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description DNA methylation (DNAm) based biomarkers of aging have been developed for many tissues and organs. However, these biomarkers have sub-optimal accuracy in skin cells, fibroblasts and other cell types that are often used in ex vivo studies. To address this challenge, we analyzed DNA methylation array data sets derived from multiple sources of DNA, from which we developed a novel and highly robust DNAm age estimator (based on 391 CpGs) for human fibroblasts, keratinocytes, buccal cells, endothelial cells, lymphoblastoid cells, skin, blood, and saliva samples. The application of this new age estimator to ex vivo cell culture systems revealed that cellular population doubling is generally accompanied by an increase in epigenetic aging. The new skin & blood clock disclosed herein is useful for ex vivo and in vivo studies of human aging.
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language eng ; fre ; ger
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subjects BEER
BIOCHEMISTRY
CHEMISTRY
COMPOSITIONS OR TEST PAPERS THEREFOR
CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL ORENZYMOLOGICAL PROCESSES
ENZYMOLOGY
HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATIONTECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING ORPROCESSING OF MEDICAL OR HEALTHCARE DATA
INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTEDFOR SPECIFIC APPLICATION FIELDS
MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEICACIDS OR MICROORGANISMS
METALLURGY
MICROBIOLOGY
MUTATION OR GENETIC ENGINEERING
PHYSICS
PROCESSES OF PREPARING SUCH COMPOSITIONS
SPIRITS
VINEGAR
WINE
title DNA METHYLATION BIOMARKER OF AGING FOR HUMAN EX VIVO AND IN VIVO STUDIES
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