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Indeed, deficiencies of dietary micronutrients could favor cervical cancer development in individuals that harbor HR\u2010HPV infections. The status of retinoid levels, natural and synthetic derivatives of vitamin A, is important in maintaining cellular differentiation of the cervical epithelium. Moreover, many studies show a link between deficient intake of retinoids or alteration of the retinoid receptors and CC development. In spite of this, the effect of vitamin A deficiency (VAD) in presence of HR\u2010HPV oncoproteins on cervical carcinogenesis in vivo has not been reported. Transgenic mice expressing E6 or E7 oncoproteins (K14E6 or K14E7 mice, respectively) were used to evaluate the possible role of VAD in the development of malignant cervical lesions. The survival of the mice in VAD condition was studied, and histopathological analysis and immunohistochemical detection of molecular cancer markers such as the tumor suppressor retinoic acid receptor beta (RAR\u03b2), proliferating cell nuclear antigen (PCNA), cleaved caspase 3, and the tumor suppressor protein p16<jats:sup>INK4A<\/jats:sup> (inhibitor of CDK4) were performed. Our results show that K14E6\/VAD mice showed moderate cervical dysplasia; notably, K14E7\/VAD mice developed severe cervical dysplasia and cervical in situ carcinoma at an early age. VAD synergizes with HPV16E7 oncoprotein expression favoring cervical carcinogenesis in vivo.<\/jats:p>","DOI":"10.1111\/apm.13159","type":"journal-article","created":{"date-parts":[[2021,5,28]],"date-time":"2021-05-28T07:41:42Z","timestamp":1622187702000},"page":"512-523","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["Vitamin A deficiency in K14E7HPV expressing transgenic mice facilitates the formation of malignant cervical lesions"],"prefix":"10.1111","volume":"129","author":[{"given":"Rodolfo","family":"Ocadiz\u2010Delgado","sequence":"first","affiliation":[{"name":"Departamento de Gen\u00e9tica y Biolog\u00eda Molecular Centro de Investigaci\u00f3n y de Estudios Avanzados del Instituto Polit\u00e9cnico Nacional (CINVESTAV\u2010IPN) Mexico City 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