ArticleThe Journal of biological chemistry2012
Tyrosyl-DNA phosphodiesterase 1 (TDP1) repairs DNA damage induced by topoisomerases I and II and base alkylation in vertebrate cells.
Article in The Journal of biological chemistry, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 111 papers.
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Who cites it
111 citing papers in PubMed, 181 citations in OpenAlex.
- MRE11 suppresses germline mutagenesis at meiotic double-strand breaks in mice.Genes & development · 2026Article
- Synthesis and Biological Evaluation of TDP1 Inhibitors Based on Coumarin and Monoterpenoid Fragments Conjoined by Heterocyclic Moieties.International journal of molecular sciences · 2026Article
- Identifying potential binding sites for complex formation between Tyrosyl-DNA phosphodiesterase 1 and poly [ADP-ribose] polymerase 1.Physical chemistry chemical physics : PCCP · 2026Article
- Nucleotide excision repair and poly(ADP-ribose) polymerase 1 cooperate in HBV cccDNA synthesis: A potential viral therapeutic target.JHEP reports : innovation in hepatology · 2026Article
- The Influence of TDP1 Inhibitor Usnic Acid Derivative OL9-116 on the Effects of Topotecan in Human Cells.Current issues in molecular biology · 2026Article
- Exploring the potential mechanisms of hydroquinone on bladder cancer using network toxicology, Mendelian randomization analysis, molecular docking, and molecular dynamics simulations.Discover oncology · 2026Article
- Validating TDP1 as an Inhibition Target for Lipophilic Nucleoside Derivative in Human Cells.International journal of molecular sciences · 2025Article
- Application of a bivalent "click" approach to target tyrosyl-DNA phosphodiesterase 1 (TDP1).RSC medicinal chemistry · 2025Article
- Role of TDP2 in the repair of DNA damage induced by the radiomimetic drug Bleomycin.Genes and environment : the official journal of the Japanese Environmental Mutagen Society · 2025Article
- TDP1 splice-site mutation causes HAP1 cell hypersensitivity to topoisomerase I inhibition.Nucleic acids research · 2025Article
- Proteins Associated with Neurodegenerative Diseases: Link to DNA Repair.Biomedicines · 2024Review
- Novel Peptide-Drug Conjugates with Dual Anticancer Activity.International journal of molecular sciences · 2024Article
- Targeted sulfur(VI) fluoride exchange-mediated covalent modification of a tyrosine residue in the catalytic pocket of tyrosyl-DNA phosphodiesterase 1.Communications chemistry · 2024Article
- Cheminformatic Identification of Tyrosyl-DNA Phosphodiesterase 1 (Tdp1) Inhibitors: A Comparative Study of SMILES-Based Supervised Machine Learning Models.Journal of personalized medicine · 2024Article
- TDP1 phosphorylation by CDK1 in mitosis promotes MUS81-dependent repair of trapped Top1-DNA covalent complexes.The EMBO journal · 2024Article
- New Dual Inhibitors of Tyrosyl-DNA Phosphodiesterase 1 and 2 Based on Deoxycholic Acid: Design, Synthesis, Cytotoxicity, and Molecular Modeling.Molecules (Basel, Switzerland) · 2024Article
- Enhancement of the Antitumor and Antimetastatic Effect of Topotecan and Normalization of Blood Counts in Mice with Lewis Carcinoma by Tdp1 Inhibitors-New Usnic Acid Derivatives.International journal of molecular sciences · 2024Article
- Oncoproteins E6 and E7 upregulate topoisomerase I to activate the cGAS-PD-L1 pathway in cervical cancer development.Frontiers in pharmacology · 2024Article
- Mammalian DNA ligases; roles in maintaining genome integrity.Journal of molecular biology · 2024Review
- The proofreading exonuclease of leading-strand DNA polymerase epsilon prevents replication fork collapse at broken template strands.Nucleic acids research · 2023Article
51 more citing papers are in PubMed but not listed here.
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Authors and funding
6 authors at 3 institutions in 2 countries.
Funding
Abstract
Tyrosyl-DNA phosphodiesterase 1 (Tdp1) repairs topoisomerase I cleavage complexes (Top1cc) by hydrolyzing their 3'-phosphotyrosyl DNA bonds and repairs bleomycin-induced DNA damage by hydrolyzing 3'-phosphoglycolates. Yeast Tdp1 has also been implicated in the repair of topoisomerase II-DNA cleavage complexes (Top2cc). To determine whether vertebrate Tdp1 is involved in the repair of various DNA end-blocking lesions, we generated Tdp1 knock-out cells in chicken DT40 cells (Tdp1-/-) and Tdp1-complemented DT40 cells with human TDP1. We found that Tdp1-/- cells were not only hypersensitive to camptothecin and bleomycin but also to etoposide, methyl methanesulfonate (MMS), H(2)O(2), and ionizing radiation. We also show they were deficient in mitochondrial Tdp1 activity. In biochemical assays, recombinant human TDP1 was found to process 5'-phosphotyrosyl DNA ends when they mimic the 5'-overhangs of Top2cc. Tdp1 also processes 3'-deoxyribose phosphates generated from hydrolysis of abasic sites, which is consistent with the hypersensitivity of Tdp1-/- cells to MMS and H(2)O(2). Because recent studies established that CtIP together with BRCA1 also repairs topoisomerase-mediated DNA damage, we generated dual Tdp1-CtIP-deficient DT40 cells. Our results show that Tdp1 and CtIP act in parallel pathways for the repair of Top1cc and MMS-induced lesions but are epistatic for Top2cc. Together, our findings reveal a broad involvement of Tdp1 in DNA repair and clarify the role of human TDP1 in the repair of Top2-induced DNA damage.
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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 OpenQuestion graph.