{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,10]],"date-time":"2026-09-10T20:36:16Z","timestamp":1789072576006,"version":"build-2803163510"},"reference-count":37,"publisher":"Wiley","license":[{"start":{"date-parts":[[2014,3,13]],"date-time":"2014-03-13T00:00:00Z","timestamp":1394668800000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/3.0\/"}],"funder":[{"DOI":"10.13039\/501100000780","name":"European Commission","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100000780","id-type":"DOI","asserted-by":"publisher"}]},{"name":"University of Milan Bicocca"},{"name":"Institute for Health and Consumer Protection"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["ISRN Toxicology"],"published-print":{"date-parts":[[2014,3,13]]},"abstract":"<jats:p>Cadmium and cadmium compounds are contaminants of the environment, food, and drinking water and are important constituents of cigarette smoke. Cd exposure has also been associated with airborne particulate CdO and with Cd-containing quantum dots in medical therapy. Adverse cadmium effects reported in the literature have stimulated during recent years an ongoing discussion to better elucidate cadmium outcomes at cell and molecular level. The present work is designed to gain an insight into the mechanism of p53 impairment at gene and protein level to understand Cd-induced resistance to apoptosis. We used a hepatoma cell line (HepG2) derived from liver, known to be metal responsive. At genotoxic cadmium concentrations no cell cycle arrest was observed. The p53 at gene and protein level was not regulated. Fluorescence images showed that p53 was correctly translocated into the nucleus but that the<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M1\"><mml:mrow><mml:msup><mml:mrow><mml:mtext>p21<\/mml:mtext><\/mml:mrow><mml:mrow><mml:mtext>Cip1\/WAF-1<\/mml:mtext><\/mml:mrow><\/mml:msup><\/mml:mrow><\/mml:math>, a downstream protein of p53 network involved in cell cycle regulation, was not activated at the highest cadmium concentrations used. The miRNAs analysis revealed an upregulation of mir-372, an miRNA able to affect<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M2\"><mml:mrow><mml:msup><mml:mrow><mml:mtext>p21<\/mml:mtext><\/mml:mrow><mml:mrow><mml:mtext>Cip1\/WAF-1<\/mml:mtext><\/mml:mrow><\/mml:msup><\/mml:mrow><\/mml:math>expression and promote cell cycle progression and proliferation. The role of metallothioneins and possible conformational changes of p53 are discussed.<\/jats:p>","DOI":"10.1155\/2014\/976428","type":"journal-article","created":{"date-parts":[[2014,3,13]],"date-time":"2014-03-13T21:04:05Z","timestamp":1394744645000},"page":"1-9","source":"Crossref","is-referenced-by-count":28,"title":["Cadmium Impairs p53 Activity in HepG2 Cells"],"prefix":"10.1155","volume":"2014","author":[{"given":"C.","family":"Urani","sequence":"first","affiliation":[{"name":"Department of Earth and Environmental Sciences, University of Milano Bicocca, piazza della Scienza 1, 20126 Milan, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"P.","family":"Melchioretto","sequence":"additional","affiliation":[{"name":"Department of Earth and Environmental Sciences, University of Milano Bicocca, piazza della Scienza 1, 20126 Milan, 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