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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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. 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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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