June 2013 – Page 2 – Oral Cancer News

Gastric Reflux Is an Independent Risk Factor for Laryngopharyngeal Carcinoma

Source: http://cebp.aacrjournals.orgAuthors: Scott M. Langevin1,2,Dominique S. Michaud1,Carmen J. Marsit4,5,Heather H. Nelson6,7,Ariel E. Birnbaum3,Melissa Eliot1,Brock C. Christensen4,5,Michael D. McClean8, and Karl T. Kelsey1,2 Abstract Background: Gastric reflux can reach into the upper airway, inducing cellular damage in the epithelial lining. This condition is believed to be a risk factor for development of laryngopharyngeal squamous cell carcinoma (LPSCC), although the literature is conflicting. Methods: To better clarify this relationship, we assessed the association of self-reported heartburn history and medication use among 631 patients with LPSCCs and 1234 control subjects (frequency-matched on age, gender, and town of residence) enrolled as part of a population-based case–control study of head and neck squamous cell carcinoma in the greater Boston area. Results: After adjusting for age, gender, race, smoking, alcohol consumption, HPV16 seropositivity, education, and body mass index, subjects reporting a history of frequent heartburn and who were neither a heavy smoker nor heavy drinker had a significantly elevated risk of LPSCCs [OR, 1.78; 95% confidence interval (CI), 1.00–3.16]. Among those with a history of heartburn, there was an inverse association between antacid use and LPSCCs relative to those never taking heartburn medication (OR, 0.59; 95% CI, 0.38–0.93) that remained consistent when analyzed by smoking/drinking status, HPV16 status, or by primary tumor site. Conclusions: Our data show that gastric reflux is an independent risk factor for squamous cancers of the pharynx and larynx. Further studies are needed to clarify the possible chemopreventive role of antacid use for patients with gastric reflux. Impact: Elucidation of additional risk factors for head [...]

Charlotte Parker2013-06-10T16:27:36-07:00June, 2013|Oral Cancer News|

Enhanced radiation sensitivity in HPV-positive head and neck cancer

Source: http://cancerres.aacrjournals.orgAuthors: Randall J. Kimple1,*,Molly A. Smith1,Grace C Blitzer1,Alexandra D Torres1,Joshua A Martin1,Robert Z. Yang1,Chimera R Peet1,Laurel D. Lorenz2,Kwangok P Nickel3,Aloysius J Klingelhutz4,Paul F Lambert5, andPaul M Harari1 Abstract Patients with human papillomavirus associated (HPV+) head and neck cancer (HNC) demonstrate significantly improved survival outcome compared to those with HPV-negative (HPV-) tumors. Published data examining this difference offers conflicting results to date. We systematically investigated the radiation sensitivity of all available validated HPV+ HNC cell lines and a series of HPV- HNC cell lines using in vitro and in vivo techniques. HPV+ HNCs exhibited greater intrinsic radiation sensitivity (average SF2 HPV- 0.59 vs. HPV+ 0.22, p<0.0001), corresponding with a prolonged G2/M cell cycle arrest and increased apoptosis following radiation exposure (percent change 0% vs. 85%, p=0.002). A genome-wide microarray was used to compare gene-expression 24 hours following radiation between HPV+ and HPV- cell lines. Multiple genes in TP53 pathway were upregulated in HPV+ cells (Z score 4.90), including a 4.6 fold increase in TP53 (p<0.0001). Using immortalized human tonsillar epithelial cells, increased radiation sensitivity was seen in cell expressing HPV-16 E6 despite the effect of E6 to degrade p53. This suggested that low levels of normally functioning p53 in HPV+ HNC cells could be activated by radiation, leading to cell death. Consistent with this, more complete knockdown of TP53 by siRNA resulted in radiation resistance. These results provide clear evidence, and a supporting mechanism, for increased radiation sensitivity in HPV+ HNC relative to HPV- HNC. This issue is under active investigation in [...]

Charlotte Parker2013-06-10T16:15:32-07:00June, 2013|Oral Cancer News|

Don’t Take Your Vitamins

Source: New York TimesBy PAUL A. OFFITPublished: June 8, 2013 PHILADELPHIA — LAST month, Katy Perry shared her secret to good health with her 37 million followers on Twitter. “I’m all about that supplement & vitamin LYFE!” the pop star wrote, posting a snapshot of herself holding up three large bags of pills. There is one disturbing fact about vitamins, however, that Katy didn’t mention. Derived from “vita,” meaning life in Latin, vitamins are necessary to convert food into energy. When people don’t get enough vitamins, they suffer diseases like scurvy and rickets. The question isn’t whether people need vitamins. They do. The questions are how much do they need, and do they get enough in foods? Nutrition experts argue that people need only the recommended daily allowance — the amount of vitamins found in a routine diet. Vitamin manufacturers argue that a regular diet doesn’t contain enough vitamins, and that more is better. Most people assume that, at the very least, excess vitamins can’t do any harm. It turns out, however, that scientists have known for years that large quantities of supplemental vitamins can be quite harmful indeed. In a study published in The New England Journal of Medicine in 1994, 29,000 Finnish men, all smokers, had been given daily vitamin E, beta carotene, both or a placebo. The study found that those who had taken beta carotene for five to eight years were more likely to die from lung cancer or heart disease. Two years later the [...]

Charlotte Parker2013-06-10T13:10:46-07:00June, 2013|Oral Cancer News|

The New Face of Oral Cancer

Source: nursing.advanceweb.comBy Jonathan BassettPosted on: April 22, 2013 For decades tobacco was the primary cause of oral cancer but a more insidious culprit has emerged. Jerry Wilck had no reason to suspect anything. Why would he? He only smoked for a couple of years and gave it up more than 40 years ago. He didn't drink excessively, didn't have a family history of cancer, and took good care of himself. In fact, maybe the only reason the 59-year-old consulted an oral surgeon about the small sore on his tongue - the result of a habit of running this particular spot along his teeth - was that there happened to be such a specialist right there in his office. Wilck was a general practice dentist in Langhorne, Pa., and particularly attuned to anomalies of the soft tissues of the mouth. His oral surgeon took no chances and ordered a biopsy. Wilck was "floored" the night in March 2005 when the lab report arrived by fax from the oral pathology department at Temple University in Philadelphia - squamous cell carcinoma. Wilck immediately consulted with John Ridge, MD, PhD, FACS, chief of head and neck surgery at Temple's Fox Chase Cancer Center. After surgical removal of part of his tongue and lymph nodes from his neck, along with a round of physical and speech therapy, Wilck is now cancer free and has full use of his jaw, throat and voice. "I was lucky," confessed Wilck, who retired from practice in 2009 and now spends a [...]

Charlotte Parker2013-06-10T12:26:21-07:00June, 2013|OCF In The News, Oral Cancer News|

Health Experts Praise Michael Douglas For His Oral Cancer Revelation

June 3rd, 2013 7:20pm EDTSource: starpulse.com Health experts have commended Michael Douglas for speaking out about link between throat cancer and oral sex. The 68 year-old actor, who endured a six-month battle with the illness, hit headlines over the weekend when he voiced his belief that his cancer was caused by HPV, the human papillomavirus, which can be contracted through oral sex. The Behind The Candelabra star told Britain's The Guardian newspaper, "Without wanting to get too specific, this particular cancer is caused by HPV, which actually comes about from cunnilingus... I mean, I did worry if the stress caused by my son's incarceration didn't help trigger it. But yeah, it's a sexually transmitted disease that causes cancer. And if you have it, cunnilingus is also the best cure for it." Douglas' frank admission has now won him praise from Brian Hill, executive director of Oral Cancer Foundation, who tells the New York Post, "I'm really quite proud of Michael saying this. This (oral sex) is not an aberrant sexual behavior. But the willingness to talk about this openly can be difficult." The actor recorded a public service announcement for the Oral Cancer Foundation last year. *This news story was resourced by the Oral Cancer Foundation, and vetted for appropriateness and accuracy.

Charlotte Parker2013-06-10T11:43:06-07:00June, 2013|OCF In The News|

The Man’s Guide to HPV

Source: Men's HealthBy: Melaina Juntti What men can do about HPV Michael Douglas caught major flak for saying oral sex gave him throat cancer. But if you're laughing, it's time to grow up. Oral cancers caused by the sexually transmitted human papillomavirus (HPV) have skyrocketed 225 percent in the past 15 years, with men accounting for 75 percent of all cases. The number-one culprit: HPV passed via oral sex. It used to be that cigarettes caused most of these cancers. But since smoking rates have plummeted over the past few decades, and we're having way more oral sex today than even our fathers' generation, HPV has become the most common STD in the U.S. – inevitably leading to more oral cancer cases. It only takes one time going down on someone to contract HPV, and experts estimate that 80 percent of us will be exposed to the virus at some point in our lives. This STD sometimes causes genital warts, but according to the Centers for Disease Control and Prevention, that's not very common. In most cases, HPV has no symptoms. And since no test exists to detect HPV in guys, you won't know you have the virus until years later – if it turns into cancer. "It's very hard to determine when you acquired HPV," says Dr. William Schaffner, chairman of the Department of Preventive Medicine at Vanderbilt University. "It doesn't usually come from just one sexual episode. That said, every once in a while, cancer develops within [...]

Charlotte Parker2013-06-10T11:35:49-07:00June, 2013|OCF In The News|

Michael Douglas pleased that oral sex story raised public awareness

By Agence France-PresseTuesday, June 4, 2013 18:40 EDTSource: The Raw Story Michael Douglas said he would win a Nobel prize if he knew exactly what caused his throat cancer, in fresh comments Tuesday after a dispute with a British newspaper over an interview he gave. The “Fatal Attraction” star, whose spokesman already denied he blamed his throat cancer specifically on oral sex, also said that, regardless, he was happy to raise awareness about causes of the killer disease. “I never expected to become a poster boy for head and neck cancer,” Douglas said in comments issued by a representative. “But, if after what started out as trying to answer a couple of questions about the suspected sources of this disease results in opening up discussion and furthering public awareness, then I’ll stand by that.” In an interview with Britain’s Guardian newspaper, Douglas, who stars in the just-released biopic of flamboyant entertainer Liberace, “Behind The Candelabra,” said his cancer was caused by the human papillomavirus (HPV). “Without wanting to get too specific, this particular cancer is caused by HPV, which actually comes about from cunnilingus,” he said, in comments the newspaper said amounted to blaming oral sex for his cancer. Douglas’s spokesman Allen Burry said Monday that the 68-year-old actor was talking in general, not personal terms. “This is not the cause of his cancer,” he said. On Tuesday, Douglas himself added: “Head and neck cancer can be caused by many things including [...]

Charlotte Parker2013-06-05T09:36:15-07:00June, 2013|Oral Cancer News|

Researchers Investigate A Less Toxic Radiation Treatment For HPV-Positive Oropharynx Cancer

Source : BiocomparePosted: June 03, 2013 CHICAGO, IL (May 29, 2013)—Researchers from Fox Chase Cancer Center and other institutions have completed a phase II clinical trial that may help identify those patients with HPV-positive oropharyngeal cancer who do not require the full radiation dose given in a standard regimen of Intensity-Modulated Radiation Therapy (IMRT). Preliminary findings will be presented by Shanthi Marur, first author on the study and an oncologist at the Johns Hopkins Sidney Kimmel Comprehensive Cancer Center, at the 49th Annual Meeting of the American Society of Clinical Oncology on Sunday, June 2. Patients enrolled in the trial received an initial regimen of chemotherapy followed by treatment with the targeted therapy cetuximab, a monoclonal antibody. In the study, a patient's response to those initial treatments determined the dose during radiation treatment. “Those patients who had a really good response to chemotherapy might also be more responsive to radiation,” says Barbara Burtness, senior author on the study and chief of head and neck medical oncology at Fox Chase. “Therefore, the use of a full dose of radiation for those patients might represent overtreatment.” Burtness is also chair of the Eastern Cooperative Oncology Group (ECOG), which sponsors this ongoing trial. ECOG is a a National Cancer Institute-funded team of researchers who organize and carry out clinical trials. According to the National Cancer Institute, more than 40,000 people will be diagnosed with cancer of the oropharynx—a swath of tissue at the back of the throat—in 2013, and nearly 8,000 will die [...]

Charlotte Parker2013-06-04T11:49:00-07:00June, 2013|Oral Cancer News|

ASCO: Actor’s Oral Sex Remarks May Aid HPV Prevention

By: Crystal Phend, Senior Staff WriterPublished: June 03, 2013Source: MedPage Today CHICAGO -- Actor Michael Douglas' apparent claim that he got throat cancer from human papillomavirus (HPV) contracted through oral sex may help aid prevention efforts, experts suggested. Douglas, now 68, was diagnosed with a "walnut-sized" stage IV tumor at the base of his tongue in 2010 after months of oral discomfort. His well-known tobacco and alcohol habits -- both risk factors for oropharyngeal cancers -- had been thought to be the cause, but he appeared to indicate otherwise in an interview appearing in British tabloid The Guardian yesterday. While one of his representatives has since challenged that interpretation of the interview, the spotlight on HPV as a cause of cancer should promote awareness of the need for HPV vaccination, head and neck cancer and HPV specialists contacted here at the American Society of Clinical Oncology meeting said. "It's no surprise to physicians such as myself, because probably 80% of the tonsil and tongue cancers I see are related to HPV," Eric Moore, MD, an oropharyngeal cancer specialist at the Mayo Clinic in Rochester, Minn., noted in an interview with MedPage Today. Most adults become exposed to the virus at some point but clear it like any other infection. Those who become chronically infected are at elevated risk of cervical, anal, and head and neck cancers, particularly from subtype 16. The tonsils and base of tongue are the predominant areas affected in the head and neck because of the [...]

Charlotte Parker2013-06-04T11:35:27-07:00June, 2013|Oral Cancer News|

It’s True. You Can Get Throat Cancer From Oral Sex

By: Alexandra SifferlinJune 03, 2013 Source: TIME On Sunday, in an interview with the Guardian, actor Michael Douglas revealed that his throat cancer was not caused by tobacco and alcohol, but by HPV, which was transmitted through oral sex. He has since called the statement a misunderstanding, but it’s still true: you can get throat cancer from HPV. In an eye-poppingly candid interview with the Guardian’s Xan Brooks, Douglas, who is married to actress Catherine Zeta-Jones, allegedly told the reporter his cancer was caused by the STD: The throat cancer, I assume, was first seeded during those wild middle years, when he drank like a fish and smoked like the devil. Looking back, knowing what he knows now, does he feel he overloaded his system? “No,” he says. “No. Because, without wanting to get too specific, this particular cancer is caused by HPV [human papillomavirus], which actually comes about from cunnilingus.” From what? For a moment I think that I may have misheard. “From cunnilingus. I mean, I did worry if the stress caused by my son’s incarceration didn’t help trigger it. But yeah, it’s a sexually transmitted disease that causes cancer.” He shrugs. “And if you have it, cunnilingus is also the best cure for it.” Right, I say. OK. So what he is suggesting is that it all evens out? “That’s right,” says Douglas. “It giveth and it taketh.” Human papillomavirus (HPV) is a sexually transmitted disease that can cause genital warts or present itself without symptoms. If left untreated, it can also [...]

Charlotte Parker2013-06-04T11:13:31-07:00June, 2013|Oral Cancer News|