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One such multifunctional candidate for drug targeting is the acetyltransferase Tip60, which is known to acetylate both histone and non-histone protein targets that have been shown in cancer cells to promote apoptosis and to initiate the DNA damage response, thereby limiting cellular expansion. Using a murine model, we recently published findings demonstrating that CM-specific disruption of the Kat5 gene encoding Tip60 markedly protects against the damaging effects of myocardial infarction (MI). In the experiments described here, in lieu of genetic targeting, we administered TH1834, an experimental drug designed to specifically inhibit the acetyltransferase domain of Tip60. We report that, similar to the effect of disrupting the Kat5 gene, daily systemic administration of TH1834 beginning 3 days after induction of MI and continuing for 2 weeks of a 4-week timeline resulted in improved systolic function, reduced apoptosis and scarring, and increased activation of the CM cell cycle, effects accompanied by reduced expression of genes that promote apoptosis and inhibit the cell cycle and reduced levels of CMs exhibiting phosphorylated Atm. These results support the possibility that drugs that inhibit the acetyltransferase activity of Tip60 may be useful agents for the treatment of ischemic heart disease.<\/jats:p>","DOI":"10.1242\/dmm.049786","type":"journal-article","created":{"date-parts":[[2022,11,7]],"date-time":"2022-11-07T04:09:47Z","timestamp":1667794187000},"source":"Crossref","is-referenced-by-count":21,"title":["Pharmacological inhibition of the acetyltransferase Tip60 mitigates myocardial infarction injury"],"prefix":"10.1242","volume":"16","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0139-3144","authenticated-orcid":false,"given":"Xinrui","family":"Wang","sequence":"first","affiliation":[{"name":"Medical College of Wisconsin 1 Department of Pharmacology and Toxicology , , Milwaukee, WI 53226 , USA"},{"name":"Cardiovascular Center, Medical College of Wisconsin 2 , Milwaukee, WI 53226 , USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6643-4678","authenticated-orcid":false,"given":"Tina C.","family":"Wan","sequence":"additional","affiliation":[{"name":"Medical College of Wisconsin 1 Department of Pharmacology and Toxicology , , Milwaukee, WI 53226 , USA"},{"name":"Cardiovascular Center, Medical College of Wisconsin 2 , Milwaukee, WI 53226 , USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Katherine R.","family":"Kulik","sequence":"additional","affiliation":[{"name":"Cardiovascular Center, Medical College of Wisconsin 2 , Milwaukee, WI 53226 , USA"},{"name":"Medical College of Wisconsin 3 Department of Cell Biology, Neurobiology and Anatomy , , Milwaukee, WI 53226 , USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8859-1172","authenticated-orcid":false,"given":"Amelia","family":"Lauth","sequence":"additional","affiliation":[{"name":"Cardiovascular Center, Medical College of Wisconsin 2 , Milwaukee, WI 53226 , USA"},{"name":"Medical College of Wisconsin 3 Department of Cell Biology, Neurobiology and Anatomy , , Milwaukee, WI 53226 , USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6330-2768","authenticated-orcid":false,"given":"Brian C.","family":"Smith","sequence":"additional","affiliation":[{"name":"Cardiovascular Center, Medical College of Wisconsin 2 , Milwaukee, WI 53226 , USA"},{"name":"Medical College of Wisconsin 4 Department of Biochemistry , , Milwaukee, WI 53226 , USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3408-9376","authenticated-orcid":false,"given":"John W.","family":"Lough","sequence":"additional","affiliation":[{"name":"Cardiovascular Center, Medical College of Wisconsin 2 , Milwaukee, WI 53226 , USA"},{"name":"Medical College of Wisconsin 3 Department of Cell Biology, Neurobiology and Anatomy , , Milwaukee, WI 53226 , USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8005-4599","authenticated-orcid":false,"given":"John A.","family":"Auchampach","sequence":"additional","affiliation":[{"name":"Medical College of Wisconsin 1 Department of Pharmacology and Toxicology , , Milwaukee, WI 53226 , USA"},{"name":"Cardiovascular Center, Medical College of Wisconsin 2 , Milwaukee, WI 53226 , USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"237","published-online":{"date-parts":[[2022,11,7]]},"reference":[{"key":"2022110709085925700_DMM049786C1","doi-asserted-by":"publisher","first-page":"33716","DOI":"10.1074\/jbc.M402839200","article-title":"Polyisoprenylated benzophenone, garcinol, a natural histone acetyltransferase inhibitor, represses chromatin transcription and alters global gene expression","volume":"279","author":"Balasubramanyam","year":"2004","journal-title":"J. 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