Journal Article

Prostate carcinogenesis and inflammation: emerging insights

Ganesh S. Palapattu, Siobhan Sutcliffe, Patrick J. Bastian, Elizabeth A. Platz, Angelo M. De Marzo, William B. Isaacs and William G. Nelson

in Carcinogenesis

Volume 26, issue 7, pages 1170-1181
Published in print July 2005 | ISSN: 0143-3334
Published online October 2004 | e-ISSN: 1460-2180 | DOI: https://dx.doi.org/10.1093/carcin/bgh317
Prostate carcinogenesis and inflammation: emerging insights

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Prostate cancer remains a significant health concern for men throughout the world. Recently, there has developed an expanding multidisciplinary body of literature suggesting a link between chronic inflammation and prostate cancer. In support of this hypothesis, population studies have found an increased relative risk of prostate cancer in men with a prior history of certain sexually transmitted infections or prostatitis. Furthermore, genetic epidemiological data have implicated germline variants of several genes associated with the immunological aspects of inflammation in modulating prostate cancer risk. The molecular pathogenesis of prostate cancer has been characterized by somatic alterations of genes involved in defenses against inflammatory damage and in tissue recovery. A novel putative prostate cancer precursor lesion, proliferative inflammatory atrophy, which shares some molecular traits with prostate intraepithelial neoplasia and prostate cancer, has been characterized. Here, we review the evidence associating chronic inflammation and prostate cancer and consider a number of animal models of prostate inflammation that should allow the elucidation of the mechanisms by which prostatic inflammation could lead to the initiation and progression of prostate cancer. These emerging insights into chronic inflammation in the etiology of prostate carcinogenesis hold the promise of spawning new diagnostic and therapeutic modalities for men with prostate cancer.

Keywords: BPH, benign prostatic hyperplasia; COX-2, cyclooxygenase 2; EBV, Epstein–Barr virus; HHV, human herpes virus; HPV, human papilloma virus; HSV, herpes simplex virus; MSR, macrophage scavenger receptor; NOD, non-obese diabetic; PhIP, 2-amino-1-methyl-6-phenylimidazo[4,5-b]pyridine; PIA, proliferative inflammatory atrophy; PIN, prostate intraepithelial neoplasia; PSA, prostate-specific antigen; STIs, sexually transmitted infections

Journal Article.  11323 words.  Illustrated.

Subjects: Clinical Cytogenetics and Molecular Genetics

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