ArticleCell death discovery2026
Physiological re-replication during human stem cell differentiation.
Article in Cell death discovery, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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14 authors.
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Abstract
During restricted timeframes in Drosophila development, re-replication occurs as physiological process causing the known developmental gene amplification in Drosophila. Gene amplification has also been found during differentiation in human stem cells but re-replication in human cells has been preferentially associated with tumor related genome instability. Here, we show that re-replication also occurs as physiological process in human stem cells. We used Rerep-Seq and fiber-combing to demonstrate re-replication during the differentiation of human myoblasts into myotubes and during the differentiation of mesenchymal stem cells into adipocytes, osteoblasts, chondrocytes, and neurons. Re-replication was detectable during specific timeframes in all differentiations analyzed. FACS sorting of re-replicating cells showed increased gene expression in re-replicated genome regions. Additionally, re-replicated DNA was identified as extranuclear DNA. This leads us to the hypothesis that cells that do not re-replicate and thus do not face an increased risk of chromosomal instability may ensure higher expression of certain genes and their encoded proteins during differentiation by incorporating re-replicated DNA from neighbouring cells with re-replication. We propose that human stem cells use an ancient re-replication mechanism to efficiently increase gene copy numbers, thereby meeting the heightened protein demands during differentiation.
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