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activation of OGG1 increases oxidative DNA damage repair by gaining a new function.", "authors": [{"family": "Michel", "given": "Maurice", "initials": "M", "orcid": "0000-0003-3261-2493", "researcher": {"href": "https://publications-affiliated.scilifelab.se/researcher/6f4696e361fe4aa3823d263674d1a498.json"}}, {"family": "Ben\u00edtez-Buelga", "given": "Carlos", "initials": "C"}, {"family": "Calvo", "given": "Patricia A", "initials": "PA"}, {"family": "Hanna", "given": "Bishoy M F", "initials": "BMF", "orcid": "0000-0001-7027-6553", "researcher": {"href": "https://publications-affiliated.scilifelab.se/researcher/61301102836e44d189f5628bb33c1335.json"}}, {"family": "Mortusewicz", "given": "Oliver", "initials": "O", "orcid": "0000-0002-4290-4994", "researcher": {"href": "https://publications-affiliated.scilifelab.se/researcher/6f546fe8f2c54824b942f7f88976e3bd.json"}}, {"family": "Masuyer", "given": "Geoffrey", "initials": "G", "orcid": "0000-0002-9527-2310", "researcher": {"href": 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"https://publications-affiliated.scilifelab.se/researcher/2b1f3fa37a7d4378b06381c2e68a10cb.json"}}, {"family": "Vilotijevic", "given": "Ivan", "initials": "I", "orcid": "0000-0001-6199-0632", "researcher": {"href": "https://publications-affiliated.scilifelab.se/researcher/eec3fc0f230046ccbe7ff46b2da70792.json"}}, {"family": "Kalder\u00e9n", "given": "Christina", "initials": "C", "orcid": "0000-0001-7004-7048", "researcher": {"href": "https://publications-affiliated.scilifelab.se/researcher/e9c7121a5e14414b8bace2708e8add2f.json"}}, {"family": "Osorio", "given": "Ana", "initials": "A", "orcid": "0000-0001-8124-3984", "researcher": {"href": "https://publications-affiliated.scilifelab.se/researcher/6ecd4cc9c17d43009703efb95d979e09.json"}}, {"family": "Perona", "given": "Rosario", "initials": "R", "orcid": "0000-0002-2973-5153", "researcher": {"href": "https://publications-affiliated.scilifelab.se/researcher/5b116837f5c346d49e70ad5eb28d7afb.json"}}, {"family": "Stolz", "given": "Alexandra", "initials": "A", "orcid": "0000-0002-3340-439X", "researcher": {"href": "https://publications-affiliated.scilifelab.se/researcher/4bde36f21953479a8762c1c858b4c451.json"}}, {"family": "Stenmark", "given": "P\u00e5l", "initials": "P", "orcid": "0000-0003-4777-3417", "researcher": {"href": "https://publications-affiliated.scilifelab.se/researcher/9791bc0d7463417899d6953b5ca1bac3.json"}}, {"family": "Berglund", "given": "Ulrika Warpman", "initials": "UW", "orcid": "0000-0002-6372-1396", "researcher": {"href": "https://publications-affiliated.scilifelab.se/researcher/8b6cab92fb2c4597a0c04777095f80db.json"}}, {"family": "de Vega", "given": "Miguel", "initials": "M", "orcid": "0000-0003-1285-7549", "researcher": {"href": "https://publications-affiliated.scilifelab.se/researcher/6196fa790b4645c3acef45a87cdac3d0.json"}}, {"family": "Helleday", "given": "Thomas", "initials": "T", "orcid": "0000-0002-7384-092X", "researcher": {"href": "https://publications-affiliated.scilifelab.se/researcher/385586c159494955a9a72c3381e3ad47.json"}}], "type": "journal article", "published": "2022-06-24", "journal": {"title": "Science (New York, N.Y.)", "issn": "1095-9203", "volume": "376", "issue": "6600", "pages": "1471-1476", "issn-l": "0036-8075"}, "abstract": "Oxidative DNA damage is recognized by 8-oxoguanine (8-oxoG) DNA glycosylase 1 (OGG1), which excises 8-oxoG, leaving a substrate for apurinic endonuclease 1 (APE1) and initiating repair. Here, we describe a small molecule (TH10785) that interacts with the phenylalanine-319 and glycine-42 amino acids of OGG1, increases the enzyme activity 10-fold, and generates a previously undescribed \u03b2,\u03b4-lyase enzymatic function. TH10785 controls the catalytic activity mediated by a nitrogen base within its molecular structure. In cells, TH10785 increases OGG1 recruitment to and repair of oxidative DNA damage. This alters the repair process, which no longer requires APE1 but instead is dependent on polynucleotide kinase phosphatase (PNKP1) activity. The increased repair of oxidative DNA lesions with a small molecule may have therapeutic applications in various diseases and aging.", "doi": "10.1126/science.abf8980", "pmid": "35737787", "labels": [], "xrefs": [], "notes": [], "created": "2026-08-20T11:59:29.051Z", "modified": "2026-08-20T11:59:30.134Z"}, {"entity": "publication", "iuid": "7daae118f3e6438a81a052f2c6eb34e8", "links": {"self": {"href": "https://publications-affiliated.scilifelab.se/publication/7daae118f3e6438a81a052f2c6eb34e8.json"}, "display": {"href": "https://publications-affiliated.scilifelab.se/publication/7daae118f3e6438a81a052f2c6eb34e8"}}, "title": "NEIL3 Prevents Senescence in Hepatocellular Carcinoma by Repairing Oxidative Lesions at Telomeres during Mitosis.", "authors": [{"family": "Zhao", "given": "Zhenjun", "initials": "Z"}, {"family": "Gad", "given": "Helge", "initials": "H"}, {"family": "Benitez-Buelga", "given": "Carlos", "initials": "C"}, {"family": "Sanjiv", "given": "Kumar", "initials": "K", "orcid": "0000-0002-5415-9952", "researcher": {"href": "https://publications-affiliated.scilifelab.se/researcher/f96227a0cfd8467ca6e8ac1146dda00a.json"}}, {"family": "Xiangwei", "given": "Hua", "initials": "H"}, {"family": "Kang", "given": "He", "initials": "H"}, {"family": "Feng", "given": "Mingxuan", "initials": "M"}, {"family": "Zhao", "given": "Zhicong", "initials": "Z", "orcid": "0000-0002-3225-2494", "researcher": {"href": "https://publications-affiliated.scilifelab.se/researcher/d5522d9771144cf6999e59c300a282d8.json"}}, {"family": "Berglund", "given": "Ulrika Warpman", "initials": "UW"}, {"family": "Xia", "given": "Qiang", "initials": "Q"}, {"family": "Helleday", "given": "Thomas", "initials": "T"}], "type": "journal article", "published": "2021-08-01", "journal": {"title": "Cancer Res.", "issn": "1538-7445", "volume": "81", "issue": "15", "pages": "4079-4093", "issn-l": "0008-5472"}, "abstract": "Patients with hepatocellular carcinoma (HCC) suffer from few treatment options and poor survival rates. Here we report that endonuclease VIII-like protein 3 (NEIL3) is overexpressed in HCC and correlates with poor survival. All six HCC cell lines investigated were dependent on NEIL3 catalytic activity for survival and prevention of senescence, while NEIL3 was dispensable for nontransformed cells. NEIL3-depleted HCC cell lines accumulated oxidative DNA lesions specifically at telomeres, resulting in telomere dysfunctional foci and 53BP1 foci formation. Following oxidative DNA damage during mitosis, NEIL3 relocated to telomeres and recruited apurinic endonuclease 1 (APE1), indicating activation of base excision repair. META-FISH revealed that NEIL3, but not NEIL1 or NEIL2, is required to initiate APE1 and polymerase beta (POLB)-dependent base excision repair at oxidized telomeres. Repeated exposure of NEIL3-depleted cells to oxidizing damage induced chromatin bridges and damaged telomeres. These results demonstrate a novel function for NEIL3 in repair of oxidative DNA damage at telomeres in mitosis, which is important to prevent senescence of HCC cells. Furthermore, these data suggest that NEIL3 could be a target for therapeutic intervention for HCC. SIGNIFICANCE: This study describes compartmentalization of base excision repair during mitosis that is dependent on NEIL3, APE1, and POLB to repair oxidative damage accumulating at telomeres in hepatocellular carcinoma.", "doi": "10.1158/0008-5472.CAN-20-1028", "pmid": "34045188", "labels": [], "xrefs": [{"db": "pmc", "key": "PMC9398161"}, {"db": "pii", "key": "0008-5472.CAN-20-1028"}], "notes": [], "created": "2026-08-20T12:11:01.201Z", "modified": "2026-08-20T12:11:01.308Z"}, {"entity": "publication", "iuid": "6315feb800e343aeb5d3716434ad0e92", "links": {"self": {"href": "https://publications-affiliated.scilifelab.se/publication/6315feb800e343aeb5d3716434ad0e92.json"}, "display": {"href": "https://publications-affiliated.scilifelab.se/publication/6315feb800e343aeb5d3716434ad0e92"}}, "title": "MTH1 Inhibitor TH588 Disturbs Mitotic Progression and Induces Mitosis-Dependent Accumulation of Genomic 8-oxodG.", "authors": [{"family": "Rudd", "given": "Sean G", "initials": "SG", "orcid": "0000-0002-4368-3855", "researcher": {"href": "https://publications-affiliated.scilifelab.se/researcher/d65643e96cfe4f3a98cf4f48225eac73.json"}}, {"family": "Gad", "given": "Helge", "initials": "H"}, {"family": "Sanjiv", "given": "Kumar", "initials": "K", "orcid": "0000-0002-5415-9952", "researcher": {"href": "https://publications-affiliated.scilifelab.se/researcher/f96227a0cfd8467ca6e8ac1146dda00a.json"}}, {"family": "Amaral", "given": "Nuno", "initials": "N"}, {"family": "Hagenkort", "given": "Anna", "initials": "A"}, {"family": "Groth", "given": "Petra", "initials": "P"}, {"family": "Str\u00f6m", "given": "Cecilia E", "initials": "CE"}, {"family": "Mortusewicz", "given": "Oliver", "initials": "O", "orcid": "0000-0002-4290-4994", "researcher": {"href": "https://publications-affiliated.scilifelab.se/researcher/6f546fe8f2c54824b942f7f88976e3bd.json"}}, {"family": "Berglund", "given": "Ulrika Warpman", "initials": "UW", "orcid": "0000-0002-6372-1396", "researcher": {"href": "https://publications-affiliated.scilifelab.se/researcher/8b6cab92fb2c4597a0c04777095f80db.json"}}, {"family": "Helleday", "given": "Thomas", "initials": "T"}], "type": "journal article", "published": "2020-09-01", "journal": {"title": "Cancer Res.", "issn": "1538-7445", "volume": "80", "issue": "17", "pages": "3530-3541", "issn-l": "0008-5472"}, "abstract": "Reactive oxygen species (ROS) oxidize nucleotide triphosphate pools (e.g., 8-oxodGTP), which may kill cells if incorporated into DNA. Whether cancers avoid poisoning from oxidized nucleotides by preventing incorporation via the oxidized purine diphosphatase MTH1 remains under debate. Also, little is known about DNA polymerases incorporating oxidized nucleotides in cells or how oxidized nucleotides in DNA become toxic. Here we show that replacement of one of the main DNA replicases in human cells, DNA polymerase delta (Pol \u03b4), with an error-prone variant allows increased 8-oxodG accumulation into DNA following treatment with TH588, a dual MTH1 inhibitor and microtubule targeting agent. The resulting elevated genomic 8-oxodG correlated with increased cytotoxicity of TH588. Interestingly, no substantial perturbation of replication fork progression was observed, but rather mitotic progression was impaired and mitotic DNA synthesis triggered. Reducing mitotic arrest by reversin treatment prevented accumulation of genomic 8-oxodG and reduced cytotoxicity of TH588, in line with the notion that mitotic arrest is required for ROS buildup and oxidation of the nucleotide pool. Furthermore, delayed mitosis and increased mitotic cell death was observed following TH588 treatment in cells expressing the error-prone but not wild-type Pol \u03b4 variant, which is not observed following treatments with antimitotic agents. Collectively, these results link accumulation of genomic oxidized nucleotides with disturbed mitotic progression. SIGNIFICANCE: These findings uncover a novel link between accumulation of genomic 8-oxodG and perturbed mitotic progression in cancer cells, which can be exploited therapeutically using MTH1 inhibitors.See related commentary by Alnajjar and Sweasy, p. 3459.", "doi": "10.1158/0008-5472.CAN-19-0883", "pmid": "32312836", "labels": [], "xrefs": [{"db": "pii", "key": "0008-5472.CAN-19-0883"}], "notes": [], "created": "2026-08-20T12:10:55.392Z", "modified": "2026-08-20T12:10:55.497Z"}]}