ArticleNeoplasia (New York, N.Y.)2025
Suppression of ADP-ribosylation reversal triggers cell vulnerability to alkylating agents.
Article in Neoplasia (New York, N.Y.), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
What it found
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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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Who cites it
3 citing papers in PubMed.
- Alkylating agents activate an SLFN11-dependent vulnerability that confers PARP-1 inhibitor sensitivity in kidney cancer.Journal of experimental & clinical cancer research : CR · 2026Article
- PARG regulates the proteasomal degradation of TARG1.Cell reports · 2026Article
- Deciphering the dark side of histone ADP-ribosylation: what structural features of damaged nucleosome regulate the activities of PARP1 and PARP2.Nucleic acids research · 2025Article
Corrections and comments
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Authors and funding
13 authors.
Funding
Abstract
The ADP-ribosyl hydrolases PARG and ARH3 counteract PARP enzymatic activity by removing ADP-ribosylation. PARG and ARH3 activities have a synthetic lethal effect; however, the specific molecular mechanisms underlying this response remain unknown. Here, we show that the PARG and ARH3 synthetic lethality is enhanced further in the presence of DNA alkylating agents, suggesting that the inability to revert ADP-ribosylation primarily affects the repair of alkylated DNA bases. ARH3 knockout cells, treated with PARG inhibitor and alkylating genotoxins, accumulated single-stranded DNA and DNA damage, resulting in G2/M cell cycle arrest and apoptosis. Furthermore, we reveal a reduction in PARP1/PARP2 levels in ARH3-deficient cells treated with PARG inhibitor due to excessive ADP-ribosylation, which may contribute to alkylating agents' vulnerability. Collectively, these results uncover the potential of targeting ADP-ribosyl hydrolases in combination with alkylating agents for cancer therapy and provide insights into the mechanisms underlying the synthetic lethal effect.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.