ReviewBiomolecules2026
Replication Stress Tolerance in Adult T-Cell Leukemia.
Review in Biomolecules, 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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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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0 citing papers in PubMed.
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Replication stress (RS) represents a major vulnerability of cancer cells treated with nucleoside analogs and related antimetabolites; however, tumors frequently acquire tolerance mechanisms that permit survival despite persistent DNA lesions. This review examines molecular determinants of RS tolerance, focusing on human T-cell leukemia virus type 1 (HTLV-1)-mediated adult T-cell leukemia/lymphoma (ATL) as a model of virus-mediated rewiring of DNA damage responses. Chain-terminating nucleoside analogs generate aberrant replication intermediates, including blocked 3' DNA termini, mis-incorporated bases, and stalled replication forks. In ATL, viral oncoproteins suppress key components of replication stress response pathways, notably tyrosyl-DNA phosphodiesterase 1 (TDP1) and mismatch repair (MMR), thereby creating exploitable repair deficiencies. Consistent with this vulnerability, ATL cells exhibit marked sensitivity to replication stress-inducing agents such as irinotecan (CPT-11) and the chain-terminating nucleoside analog abacavir. Recent CRISPR-based functional genomics studies further identify Schlafen 11 (SLFN11) as an independent and dominant regulator of RS sensitivity. SLFN11 determines the fate of stressed replication forks independently of lesion processing, acting as an execution factor that converts otherwise tolerable RS into irreversible replication arrest. We conclude by discussing therapeutic strategies that exploit RS tolerance defects in ATL, including biomarker-guided nucleoside analog therapy, and rational combination approaches targeting compensatory RS pathways.
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