{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,8]],"date-time":"2026-04-08T13:32:38Z","timestamp":1775655158306,"version":"3.50.1"},"reference-count":25,"publisher":"MDPI AG","issue":"22","license":[{"start":{"date-parts":[[2022,11,20]],"date-time":"2022-11-20T00:00:00Z","timestamp":1668902400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Operational Programme Competitiveness 2014\u20132020","award":["NANOBIOSURF-SMIS 103528"],"award-info":[{"award-number":["NANOBIOSURF-SMIS 103528"]}]},{"name":"Operational Programme Competitiveness 2014\u20132020","award":["149\/2020"],"award-info":[{"award-number":["149\/2020"]}]},{"name":"Operational Programme Competitiveness 2014\u20132020","award":["21N\/2019"],"award-info":[{"award-number":["21N\/2019"]}]},{"name":"Executive Agency for Higher Education and Research Funding (UEFISCDI)","award":["NANOBIOSURF-SMIS 103528"],"award-info":[{"award-number":["NANOBIOSURF-SMIS 103528"]}]},{"name":"Executive Agency for Higher Education and Research Funding (UEFISCDI)","award":["149\/2020"],"award-info":[{"award-number":["149\/2020"]}]},{"name":"Executive Agency for Higher Education and Research Funding (UEFISCDI)","award":["21N\/2019"],"award-info":[{"award-number":["21N\/2019"]}]},{"name":"National Research Council (CNCS) the Core Program 2019\u20132022","award":["NANOBIOSURF-SMIS 103528"],"award-info":[{"award-number":["NANOBIOSURF-SMIS 103528"]}]},{"name":"National Research Council (CNCS) the Core Program 2019\u20132022","award":["149\/2020"],"award-info":[{"award-number":["149\/2020"]}]},{"name":"National Research Council (CNCS) the Core Program 2019\u20132022","award":["21N\/2019"],"award-info":[{"award-number":["21N\/2019"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IJMS"],"abstract":"<jats:p>Azathioprine (AZA) is a pharmacologic immunosuppressive agent administrated in various conditions such as autoimmune disease or to prevent the rejection of organ transplantation. The mechanism of action is based on its biologically active metabolite 6-mercaptopurine (6-MP), which is converted, among others, into thioguanine nucleotides capable of incorporating into replicating DNA, which may act as a strong UV chromophore and trigger DNA oxidation. The interaction between azathioprine and DNA, before and after exposure to solar simulator radiation, was investigated using UV\u2013vis spectrometry and differential pulse voltammetry at a glassy carbon electrode. The results indicated that the interaction of AZA with UV radiation was pH-dependent and occurred with the formation of several metabolites, which induced oxidative damage in DNA, and the formation of DNA-metabolite adducts. Moreover, the viability assays obtained for the L929 cell culture showed that both azathioprine and degraded azathioprine induced a decrease in cell proliferation.<\/jats:p>","DOI":"10.3390\/ijms232214438","type":"journal-article","created":{"date-parts":[[2022,11,21]],"date-time":"2022-11-21T03:05:11Z","timestamp":1668999911000},"page":"14438","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Influence of the Photodegradation of Azathioprine on DNA and Cells"],"prefix":"10.3390","volume":"23","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8014-528X","authenticated-orcid":false,"given":"Mihaela-Cristina","family":"Bunea","sequence":"first","affiliation":[{"name":"National Institute of Materials Physics, Atomistilor 405A, 077125 Magurele, Romania"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0719-8016","authenticated-orcid":false,"given":"Victor-Constantin","family":"Diculescu","sequence":"additional","affiliation":[{"name":"National Institute of Materials Physics, Atomistilor 405A, 077125 Magurele, Romania"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4476-5545","authenticated-orcid":false,"given":"Monica","family":"Enculescu","sequence":"additional","affiliation":[{"name":"National Institute of Materials Physics, Atomistilor 405A, 077125 Magurele, Romania"}]},{"given":"Daniela","family":"Oprea","sequence":"additional","affiliation":[{"name":"National Institute of Materials Physics, Atomistilor 405A, 077125 Magurele, Romania"},{"name":"Faculty of Physics, University of Bucharest, Atomistilor 405, 077125 Magurele, Romania"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1848-6753","authenticated-orcid":false,"given":"Teodor Adrian","family":"Enache","sequence":"additional","affiliation":[{"name":"National Institute of Materials Physics, Atomistilor 405A, 077125 Magurele, Romania"}]}],"member":"1968","published-online":{"date-parts":[[2022,11,20]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"257","DOI":"10.1111\/j.1751-1097.1986.tb05602.x","article-title":"Photochemical Sensitization by Azathioprine and Its Metabolites\u2014Ii. 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