HPV – Page 42 – Oral Cancer News

Dental professionals join The Oral Cancer Foundation to raise awareness as HPV is now the primary cause of Oral Cancers in America

NEWPORT BEACH, Calif., April 4, 2011 /PRNewswire/ -- A serious change in the cause of oral cancer is taking place nationally, and its implications are impacting the American public in a manner that a decade ago no one would have predicted. For decades, oral cancer (also known as mouth cancer, tongue cancer, tonsil cancer, and throat cancer) has been a disease which most often occurred in older individuals, who during their lifetimes had been tobacco users. Most cases were ultimately the result of lifestyle choices. Today that paradigm has changed. A common, sexually transferred virus has replaced tobacco as the number one cause of oral cancers, Human Papilloma Virus number 16 (HPV16). This is one of the same viruses that are responsible for the majority of cervical cancers in women. This year alone, approximately 37,000 Americans will be newly diagnosed with oral cancer, and one person will die every hour of every day from this disease. HPV16, one of about 130 versions of the virus, is now the leading cause of oral cancer, and is found in about 60% of newly diagnosed patients. Dr. Maura Gillison from the James Cancer Center, a long time researcher of the relationship between HPV and oral cancers, recently reported these new findings at the American Academy for the Advancement of Science meeting. This change in etiology, which has accelerated its influence over the last two decades as tobacco use in the US simultaneously was declining, has also changed the demographics of who is getting [...]

Charlotte Parker2011-04-07T10:39:32-07:00April, 2011|OCF In The News, Oral Cancer News|

Longitudinal study of human papillomavirus persistence and cervical intraepithelial neoplasia grade 2/3: critical role of duration of infection

Journal of the National Cancer Institute, April 5, 2011. Authors: Ana Cecilia Rodríguez, Mark Schiffman, Rolando Herrero, Allan Hildesheim, Concepción Bratti, Mark E. Sherman, Diane Solomon, Diego Guillén, Mario Alfaro, Jorge Morales, Martha Hutchinson, Hormuzd Katki, Li Cheung, Sholom Wacholder, Robert D. Burk Background The natural history of human papillomavirus (HPV) infections in older women is critical for preventive strategies, including vaccination and screening intervals, but is poorly understood. In a 7-year population-based cohort study in Guanacaste, Costa Rica, we examined whether women’s age and the duration of carcinogenic HPV infections influenced subsequent persistence of infection and risk of cervical intraepithelial neoplasia grade 2 (CIN 2) or worse disease. Methods At enrollment, of the 9466 participants eligible for pelvic examination, 9175 were screened for cervical neoplasia using multiple methods; those with CIN 2 or worse disease were censored and treated. Participants at low risk of CIN 2 or worse (n = 6029) were rescreened at 5–7 years (passively followed), whereas higher-risk participants (n = 2115) and subsets of low-risk women (n = 540) and initially sexually inactive women (n = 410) were rescreened annually or semiannually (actively followed) for up to 7 years. HPV testing was done using a polymerase chain reaction–based method. We determined, by four age groups (18–25, 26–33, 34–41, and ≥42 years), the proportion of prevalent infections (found at baseline) and newly detected infections (first found during follow-up) that persisted at successive 1-year time points and calculated absolute risks of CIN 2 and CIN grade 3 (CIN [...]

Charlotte Parker2011-04-10T17:25:47-07:00April, 2011|Oral Cancer News|

We owe it to our sons to protect them against human papilloma virus – the new oral cancer peril

The seemingly unstoppable rise of throat and mouth cancers over the past two decades has left experts baffled and deeply concerned. These are truly horrible diseases. More than 15,000 new patients are diagnosed each year in Britain alone and almost 8,000 die from the most common type, cancer of the oesophagus. Two-thirds of sufferers are men. And those that survive are often left horrifically disfigured by aggressive radiotherapy and surgery. Most worryingly, numbers of new cases have doubled since 1989. We used to think most oral and throat cancers - which also include laryngeal (voice box), tracheal (windpipe) and oropharyngeal (soft-palate) tumours - were due to a lifetime of smoking and heavy alcohol consumption, and only really occurred in old age. But as health messages hit home, numbers of smokers and drinkers dropped, fewer older men and women developed these cancers and a new group of patients - middle-class, middle-aged men who drank moderately and had never smoked - emerged. This was a surprise. Small studies, in which tumours were analysed, indicated a new culprit: the human papilloma virus (HPV), the same virus that we knew was the cause of cervical cancer in women. For years there have been whisperings among oncologists that this could become one of the most significant cancer challenges of the 21st Century. And six weeks ago, evidence published by two American universities showed that these fears were becoming a reality. Researchers found that about half of the male population carried some form of HPV; that every year [...]

Oral Cancer Foundation News Team - A2011-04-04T13:03:49-07:00April, 2011|Oral Cancer News|

We owe it to our sons to protect them against human papilloma virus – the new oral cancer peril

Source: www.dailymail.co.uk Author: Professor Lawrence Young The seemingly unstoppable rise of throat and mouth cancers over the past two decades has left experts baffled and deeply concerned. These are truly horrible diseases. More than 15,000 new patients are diagnosed each year in Britain alone and almost 8,000 die from the most common type, cancer of the oesophagus. Two-thirds of sufferers are men. And those that survive are often left horrifically disfigured by aggressive radiotherapy and surgery. Most worryingly, numbers of new cases have doubled since 1989. We used to think most oral and throat cancers - which also include laryngeal (voice box), tracheal (windpipe) and oropharyngeal (soft-palate) tumours - were due to a lifetime of smoking and heavy alcohol consumption, and only really occurred in old age. But as health messages hit home, numbers of smokers and drinkers dropped, fewer older men and women developed these cancers and a new group of patients - middle-class, middle-aged men who drank moderately and had never smoked - emerged. This was a surprise. Small studies, in which tumours were analysed, indicated a new culprit: the human papilloma virus (HPV), the same virus that we knew was the cause of cervical cancer in women. For years there have been whisperings among oncologists that this could become one of the most significant cancer challenges of the 21st Century. And six weeks ago, evidence published by two American universities showed that these fears were becoming a reality. Researchers found that about half of the [...]

Oral Cancer Foundation News Team - A2011-04-03T09:40:53-07:00April, 2011|Oral Cancer News|

Facebook deems UNF paper cover photo a ‘violation’

Source: International Business Times Popular Social Networking Site Facebook has deemed the controversial cover photo of University of North Florida newspaper Spinnaker as "violation" of Terms of Use. University of North Florida's student newspaper Spinnaker has run into trouble after printing a picture of simulated oral sex on its front cover to promote an article about how oral sex spreads human papillomavirus (HPV). In the photograph, a fully clothed man is shown simulating oral sex on a woman sitting atop a stool. Neither's face is shown. However, Josh Gore, the paper's editor, defended the decision. "HPV is a problem everywhere," said Gore. "It's happening and that's why we put it on cover. This is not obscene. This is not obscene at all." "It complimented the story, it got people to read the story and this was not pornography," Gore said. Meanwhile, Spinnaker's web editor Ian Albahae said when they went to print the photo as the Facebook image, the social networking site saw a problem with the image and took it down. "I received an email at about 6:30 this morning saying that my account was under warning for posting obscene imagery," First Coast News reported quoting Albahae. The email went on to say Facebook "does not allow photos that attack an individual or group or that contain nudity, drug use, violence or other violations of the Terms of Use." Facebook prompted Albahae to re-agree to the terms of use, terms he still doesn't think the image violated, the report [...]

Oral Cancer Foundation News Team - A2011-04-03T09:29:48-07:00April, 2011|OCF In The News, Oral Cancer News|

DNA repair biomarker profiling of head and neck vancer: Ku80 rxpression predicts locoregional failure and death following radiotherapy

Source: American Association for Cancer Research Abstract Purpose: Radiotherapy plays an integral role in the treatment of head and neck squamous cell carcinoma (HNSCC). Although proteins involved in DNA repair may predict HNSCC response to radiotherapy, none has been validated in this context. We examined whether differential expression of double-strand DNA break (DSB) repair proteins in HNSCC, the chief mediators of DNA repair following irradiation, predict for treatment outcomes. Experimental Design: Archival HNSCC tumor specimens were assembled onto a tissue microarray and stained with antibodies raised against 38 biomarkers. The biomarker set was enriched for proteins involved in DSB repair, in addition to established mechanistic markers of radioresistance. Staining was correlated with treatment response and survival alongside established clinical and pathologic covariates. Results were validated in an independent intramural cohort. Results: Ku80, a key mediator of DSB repair, correlated most closely with clinical outcomes. Ku80 was overexpressed in half of all tumors, and its expression was independent of all other covariates examined. Ku80 overexpression was an independent predictor for both locoregional failure and mortality following radiotherapy. The predictive power of Ku80 overexpression was confined largely to HPV-negative HNSCC, where it conferred a nine-fold greater risk of death at two years. Conclusions: Ku80 overexpression is a common feature of HNSCC, and is a candidate DNA repair-related biomarker for radiation treatment failure and death, particularly in patients with high-risk HPV-negative disease. It is a promising, mechanistically rational biomarker to select individual HPV-negative HNSCC patients for strategies to intensify treatment. Clin Cancer Res; [...]

Oral Cancer Foundation News Team - A2011-04-03T09:28:48-07:00March, 2011|Oral Cancer News|

Oral cancer screenings: dental professionals can save lives

Source: www.dentistryiq.com Author: Michelle Kratt I am sure that you have heard of HPV (human papillomavirus)? Did you know that some types of HPV can cause oral cancer? Recent studies in the United States indicate that HPV is now the leading cause of head and neck cancers at 64%, even rising above smoking, tobacco chewing, and drinking alcohol. Oral cancer accounts for 2% to 4% of all cancers diagnosed annually in the United States. The number of oral cancer cases is steadily rising, and today it is showing up in younger patients. More than 37,000 Americans will be diagnosed with oral or pharyngeal cancer this year. It will cause more than 8,000 deaths, killing roughly one person per hour, 24 hours per day. Of those 37,000 newly diagnosed individuals, only slightly more than half will be alive in five years. The death rate for these types of cancer is so high not because it is hard to discover or diagnose, but because it is caught too late in its development, with 70% found in Stage III or IV. Aside from the usual risk factors — tobacco and alcohol, ultraviolet light, poor nutrition, immune system suppression, lichen planus, and history of cancer — the addition of HPV as a risk factor for oral cancer has made it extremely difficult to easily define high-risk individuals (25% of mouth cancers and 35% of throat cancers are caused by HPV). Another risk factor, although controversial, is ill-fitting dentures. It has been suggested that long-term [...]

Oral Cancer Foundation News Team - A2011-03-21T12:28:36-07:00March, 2011|OCF In The News, Oral Cancer News|

Evaluation of human papillomavirus testing for squamous cell carcinoma of the tonsil in clinical practice

Source: jcp.bmj.com Authors: Selvam Thavaraj et al. Background: Oncogenic human papillomavirus (HPV)-associated oropharyngeal squamous cell carcinoma (SCC) is a subtype of head-and-neck cancer with a distinct clinical and prognostic profile. While there are calls to undertake HPV testing for oropharyngeal SCCs within the diagnostic setting and for clinical trials, there are currently no internationally accepted standards. Methods: 142 tonsil SCCs were tested using p16 immunohistochemistry (IHC), high-risk HPV DNA in situ hybridisation (ISH) and HPV DNA polymerase chain reaction (PCR; GP5+/6+ primers). Results: There were high levels of agreement between pathologists for p16 IHC and HPV ISH scoring; however, around 10% of HPV ISH cases showed some interobserver discrepancy that was resolved by slide review. The combination of p16 IHC and HPV ISH classified 53% of the samples as HPV-positive, whereas the combination of p16 IHC and HPV PCR classified 61% of the samples as HPV-positive. By employing a three-tiered, staged algorithm (p16 IHC/HPV ISH/HPV PCR), the authors were able to classify 98% of the cases as either HPV-positive (p16 IHC+/HPV DNA+; 62%) or HPV-negative (p16 IHC−/HPV DNA−; 35%). Conclusions: The current study suggests that using a combination of p16 IHC/HPV ISH/HPV PCR, in a three-tiered, staged algorithm, in conjunction with consensus reporting of HPV ISH, leads to less equivocal molecular classification. In order to ensure consistent reporting of this emerging disease, it is increasingly important for the head-and-neck oncology community to define the minimum requirements for assigning a diagnosis of ‘HPV-related’ oropharyngeal SCC in order to inform prognosis and [...]

Oral Cancer Foundation News Team - A2011-03-19T12:32:28-07:00March, 2011|Oral Cancer News|

Head and neck cancer guidelines ‘streamlined’

Source: www.medscape.com Author: Fran Lowry Modest changes in the 2011 National Comprehensive Cancer Network (NCCN) Head and Neck Cancers Guidelines will refine and improve the treatment of these complex, challenging, and relatively rare cancers, according to the panel chief reporting here at the NCCN 16th Annual Conference. One of the main changes is a new "suggestion" that the workup for cancer of the oropharynx include testing of the tumor for human papillomavirus (HPV). "Immunohistochemical testing for HPV p16 is recommended," said David G. Pfister, MD, from Memorial Sloan-Kettering Cancer Center in New York City, and chair of the NCCN Head and Neck Cancers Guidelines Committee. "Although not used to guide treatment, HPV testing is valuable prognostically. The results should not change management decisions," he emphasized. HPV-related oropharyngeal cancer appears to be a new and distinct disease entity, and is associated with better survival than non-HPV head and neck cancers, Dr. Pfister noted. HPV Has a Clear Impact on Prognosis "Our understanding of the human papillomavirus as a risk factor for head and neck cancer has evolved. Now we see that it has a clear impact on prognosis," Dr. Pfister said in an interview with Medscape Medical News. Because of their improved prognosis, these patients might require different treatment, he said. "There is a great interest in better understanding HPV-related cancers and how we treat the disease down the road. Right now we have insufficient data to change how we treat these patients, but clinical trials are being designed to assess the optimal treatment [...]

Oral Cancer Foundation News Team - A2011-03-18T12:17:56-07:00March, 2011|Oral Cancer News|

Assessment of human papillomavirus in lung tumor tissue

Source: Journal of the National Cancer Institute Abstract Background Lung cancer kills more than 1 million people worldwide each year. Whereas several human papillomavirus (HPV)–associated cancers have been identified, the role of HPV in lung carcinogenesis remains controversial. Methods We selected 450 lung cancer patients from an Italian population–based case–control study, the Environment and Genetics in Lung Cancer Etiology. These patients were selected from those with an adequate number of unstained tissue sections and included all those who had never smoked and a random sample of the remaining patients. We used real-time polymerase chain reaction (PCR) to test specimens from these patients for HPV DNA, specifically for E6 gene sequences from HPV16 and E7 gene sequences from HPV18. We also tested a subset of 92 specimens from all never-smokers and a random selection of smokers for additional HPV types by a PCR-based test for at least 54 mucosal HPV genotypes. DNA was extracted from ethanol- or formalin-fixed paraffin-embedded tumor tissue under strict PCR clean conditions. The prevalence of HPV in tumor tissue was investigated. Results Specimens from 399 of 450 patients had adequate DNA for analysis. Most patients were current (220 patients or 48.9%) smokers, and 92 patients (20.4%) were women. When HPV16 and HPV18 type–specific primers were used, two specimens were positive for HPV16 at low copy number but were negative on additional type-specific HPV16 testing. Neither these specimens nor the others examined for a broad range of HPV types were positive for any HPV type. Conclusions When DNA [...]

Oral Cancer Foundation News Team - A2011-03-17T04:21:34-07:00March, 2011|Oral Cancer News|