Human papillomavirus infection and pathogenesis in urothelial cells: A mini-review |
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Affiliation: | 1. Department of Urology, Ishikawa Prefectural Central Hospital, Japan;2. Department of Reproductive and Perinatal Medicine, Kanazawa Medical University, Japan;3. Departments of Integrative Cancer Therapy and Urology, Kanazawa University Graduate School of Medical Science, Japan |
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Abstract: | Several recent studies described that high-risk human papillomavirus (HPV) infection could have a potential role in the development of malignancies other than cervical cancer, such as laryngeal carcinoma, penile carcinoma, and anal carcinoma. However, the etiological role of HPV infection in the pathogenesis of urinary tract has not been clarified. Many epidemiological studies demonstrated that HPV infections frequently occur in the external genitalia through sexual contact; however, it was reported that HPV infection could also occur in the urinary tract, including the urethra and urinary bladder. Some morphological changes of cells associated with HPV infection and mild atypical cells, suspected to be intraneoplasia, were seen in HPV-positive samples obtained from the urinary tract. Some clinical studies and meta-analysis have indicated that HPV infection is likely to have a certain etiological correlation with the development of bladder carcinoma, although its prevalence may vary according to HPV type, study population, region, histological type, detection methods, and other variables. According to the results of previous studies, the prevalence of HPV greatly widely varies in cases of bladder carcinoma. Further research by case–control or large-scales studies is thus required to reach a more definite conclusion. |
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Keywords: | Human papillomavirus Urothelial cell Bladder carcinoma |
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