<HashMap><database>ENA</database><scores/><additional><omics_type>Genomics</omics_type><omics_type>Multiomics</omics_type><center_name>Stem Cell Biology and Cellular Engineering, Helmholtz Institute for Biomedical Engineering, RWTH Aachen University</center_name><full_dataset_link>https://www.ebi.ac.uk/ena/browser/view/PRJNA141137</full_dataset_link><scientific_name>Homo sapiens</scientific_name><tag>xref:PubMed:22221451</tag><long_description>Long-term culture associated changes need to be considered for quality control of cell preparations – especially in cellular therapy. Here we describe a simple method to track cellular aging based on continuous DNA-methylation changes at six specific CpG sites. This epigenetic signature can be used as a biomarker for various cell types to predict the state of cellular aging with regard to the number of passages or days of in vitro culture. Overall design: 8 samples of human dermal fibroblasts. 4 samples of mesenchymal stem cells (MSC) from human adipose tissue.</long_description><repository>ENA</repository></additional><is_claimable>false</is_claimable><name>Homo sapiens</name><description>Cellular aging can be monitored by DNA-methylation changes at specific CpG sites</description><dates><last_updated>2025-09-24</last_updated><first_public>2014-02-11</first_public></dates><accession>PRJNA141137</accession><cross_references><GEO>GSE29661</GEO><taxon>9606</taxon><PubMed>22221451</PubMed></cross_references></HashMap>