Human Papillomavirus Infection In Cancer Research Articles

Exhaled HPV Infection in Lung Cancer: Role of MA at 3p

Lung cancer has recently been associated with human papilloma virus (HPV) infection. The most important event associated with HPV infection in cancer foresees HPV DNA integration into the host genome. Sites of integration such as the fragile site FRA3B adjacent to the FHIT frequently undergo microsatellite alterations (MAs). In this study we aim to verify the role of MAs at 3p in non-small cell lung cancer (NSCLC) with HPV positivity and eventual correlation with sex, histotype, TNM stage and cigarette smoking. We enrolled 26 NSCLC patients previously investigated for the presence of HPV in their airways (11 HPV+ and 15 HPV-). All subjects had allelotyping analysis of DNA from exhaled breath condensate (EBC), blood and bronchial brushing of microsatellite D3S1300 located in the chromosomal region 3p. For the first time we described the presence of MAs at 3p in EBC of NSCLC patients with HPV positivity. MAs in EBC corresponded to those in paired brushing. The number of patients with 3p MAs was higher in the group of NSCLC with HPV positivity than with HPV negativity. No relationship between the presence and type of MAs in EBC-brushing/DNA and sex, histotype or tumor stage was found. Our results suggested that MAs at 3p are present in caucasic NSLC HPV+ patients and might be involved in lung carcinogenesis. In consideration of the possible clinical usefulness of the analysis of MAS at 3p in the EBC of HPV+ patients in the non-invasive screening for lung cancer, these results merit further studies.

Frequency and genotype distribution of multiple human papillomavirus infections in cancer of the head and neck in a Mexican population

The aim of this study was to determine the frequency and genotype distribution of single and multiple human papillomavirus (HPV) infections in head and neck squamous cell carcinomas (HNSCCs) in a Mexican population and to assess their associations with smoking and drinking habits and clinicopathologic characteristics. A cross-sectional study was performed on a sample of patients diagnosed with HNSCCs. Tumor DNA was amplified using polymerase chain reaction with HPV consensus and multiplex primers. The associations among HPV status, survival, and clinical characteristics were analyzed. Sixteen of the 43 HNSCCs were HPV positive. HPV16 was the most prevalent type, with single infections present in 5 cases, whereas another 5 cases were combined with HPV56 infection. There was a significant association between HPV infection and oropharyngeal cancers. HPV positivity was associated with overall survival at a nearly significant P level of 0.06. Our data support the importance of HPV infection in oropharyngeal cancer, with a trend toward higher survival in HPV-positive cases.

Disrupted dichotomous intracellular control of human papillomavirus infection in cancer of the cervix

International Journal of Gynecology & ObstetricsVolume 47, Issue 3 p. 320-320 Citations from the literature oncology Disrupted dichotomous intracellular control of human papillomavirus infection in cancer of the cervix H. Zur Hausen, H. Zur HausenSearch for more papers by this author H. Zur Hausen, H. Zur HausenSearch for more papers by this author First published: December 1994 https://doi.org/10.1016/0020-7292(94)90604-1AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat No abstract is available for this article. Volume47, Issue3December 1994Pages 320-320 RelatedInformation

Disrupted dichotomous intracellular control of human papillomavirus infection in cancer of the cervix

The role of specific human papillomaviruses (HPVs) in the aetiology of cancer of the cervix is firmly established. Progression of an HPV-infected cell clone to invasive growth involves consecutive modifications of a set of host cell genes. Some of these modifications suppress viral oncogene functions post-transcriptionally, and others suppress transcription via a signalling pathway stimulated by activated macrophages and possibly by additional cells. I describe a scheme that tries to unify available data by postulating the existence of two intracellular signalling pathways in the control of latent HPV infections.