Abstract Carcinogenesis is frequently linked to genetic background, however, exposure to environmental risk factors has gained attention as the etiologic agent for several types of cancer, including prostate. The intrauterine microenvironment has been described as a preponderant factor for offspring health; and maternal exposure to insult has been linked to chronic disease in older offspring. Using a model of maternal exposure to low protein diet (LPD; 6% protein), we demonstrated that impairment of offspring rat prostatic growth on postnatal day (PND) 21 was associated with prostate carcinogenesis in older offspring (PND 540). One explanation is that maternal LPD consumption exposed offspring to an estrogenic intrauterine microenvironment, which potentially sensitized prostate cells early during glandular morphogenesis, increasing cellular response to estrogen in older rats. The onset of accelerated prostatic growth, observed on PND 21, associated with an unbalanced estrogen/testosterone ratio and increased circulating IGF-1 in older offspring appears to contribute to the development of prostate carcinoma in gestational groups on low protein (GLP) and gestational and lactational low protein (GLLP) diets (33% and 50%, respectively). Our study strongly indicated maternal exposure to LPD as a potential risk factor for induction of slow-growing prostate carcinogenesis in rat offspring later in life. prostate cancer, ventral prostate, maternal low protein diet, testosterone, estrogen, IGF-1 © The Author(s) 2018. Published by Oxford University Press on behalf of The Gerontological Society of America. All rights reserved. For permissions, please e-mail: firstname.lastname@example.org. This article is published and distributed under the terms of the Oxford University Press, Standard Journals Publication Model (https://academic.oup.com/journals/pages/about_us/legal/notices)
The Journals of Gerontology Series A: Biomedical Sciences and Medical Sciences – Oxford University Press
Published: May 14, 2018
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