September 2014 – Oral Cancer News

Number of immune cells in tumors could soon help predict and treat cancers

Source: www.science20.com Authors: Emma King, University of Southampton and Christian Ottensmeier, University of Southampton Immune cells in the blood primarily defend us against infection. But we’re now learning that these cells can also keep us free from cancer. Patients with less efficient immune systems such as organ transplant recipients or those with untreated HIV, for example, are more susceptible to cancers. It is also becoming increasingly apparent that we can use immune cells to predict survival in people who do develop cancer. And that, in fact, there are immune cells within cancers. Head and neck cancer underway The number of immune cells inside a tumor can hugely vary: some patients have vast numbers while some have very few. In a recent study, we showed that in head and neck cancers, the survival of a patient depends on how many immune cells are within the tumor. This could be a valuable way of individualizing cancer treatments. Patients with lots of immune cells, for example, could be offered less toxic cancer treatment while those with few immune cells may need more aggressive treatment to improve their chances of survival. Not all immune cells within the tumor are able to “attack” the cancer. By looking at specific cell markers – proteins on the cell exterior that allow us to see whether, for example, cells are exhausted – we can determine which individual immune cells in the tumor will be effective in tackling the cancer, or if they are exhausted and not [...]

Oral Cancer Foundation News Team - A2014-09-26T06:21:57-07:00September, 2014|Oral Cancer News|

E-Cigarettes fail to help cancer patients quit smoking

Source: www.cancernetwork.com Author: Anna Azvolinsky, PhD Among cancer patients who smoke, electronic cigarette (e-cigarette) users had greater nicotine dependence compared with traditional cigarette smokers, and e-cigarettes did not help patients quit smoking, according to the results of a study published in Cancer. E-cigarettes have been touted as possible tools for smoking cessation. According to the study authors, these are the first published results on e-cigarette use and smoking cessation among cancer patients and put into question the potential benefits of using e-cigarettes as part of a smoking cessation program for cancer patients. Those diagnosed with cancer who continue to smoke are advised to quit. The uptick in the use of e-cigarettes has raised the question of whether these newer types of cigarettes can facilitate or hamper the ability to quit smoking for good. In the new study, Jamie Ostroff, PhD, of the Memorial Sloan Kettering Cancer Center in New York, examined 1,074 cancer patients who smoked and were enrolled in a tobacco treatment program between 2012 and 2013 at the cancer center. Using a complete case analysis, e-cigarette users were equally likely to still smoke as those who did not use e-cigarettes (odds ratio of 1). Using an intention-to-treat analysis, e-cigarette users were twice as likely to be smoking at the time of follow-up (odds ratio = 2, P < .01). The 7-day abstinence from smoking was 44.4% for e-cigarette users compared with 43.1% for non-users. Patients who were e-cigarette users at study enrollment were likely to be [...]

Oral Cancer Foundation News Team - A2014-09-24T07:08:11-07:00September, 2014|Oral Cancer News|

Baseball, youth, and smokeless tobacco

Source: businesswest.com Authors: Richard Pieters, M.D. & Anthony Giambardino, D.M.D. The headlines first came with baseball Hall of Famer Tony Gwynn. His all-too-early death at 54 was attributed to the long-term use of smokeless tobacco. Now it’s former Red Sox pitcher Curt Schilling, who revealed on Aug. 20 that he was diagnosed in February with mouth cancer. “I do believe without a doubt, unquestionably,” said Schilling when making his condition public, “that chewing [tobacco] is what gave me cancer … I did it for 30 years. It was an addictive habit.” His physician agreed. Many of us who grew up with the game are used to seeing players chewing tobacco, but a new generation of children watching in the stands and on television may be seeing smokeless tobacco used for the first time. They are the ones most influenced by what baseball players do both on and off the field. And that behavior by professional athletes can be more powerful in shaping behavior than any advertising campaign by the tobacco industry. Although cigarette smoking in the U.S. continues to decline, a report from the U.S. Centers for Disease Control and Prevention (CDC) indicates that the use of smokeless tobacco has held steady over the past nine years. CDC says 14.7% of high-school boys, and 8.8% of all high-school students, reported using smokeless products in 2013. The CDC further states that smokeless tobacco contains 28 carcinogens, which can cause gum disease, stained teeth and tongue, a dulled sense of taste and [...]

Oral Cancer Foundation News Team - A2014-09-24T06:55:44-07:00September, 2014|Oral Cancer News|

Medical Grade Honey Found Not Effective in Radiation Esophagitis

Source: medscape.comAuthor: Pam Harrison SAN FRANCISCO ― A medical grade honey from New Zealand (Manuka), which is known to be effective in wound healing, does not reduce pain from radiation esophagitis more effectively than standard supportive care, phase 2 research shows. "Reducing esophagitis is important so that patients can continue eating their normal diet," Lawrence Berk, MD, chief of radiation oncology, Morsani School of Medicine, University of South Florida, Tampa, told Medscape Medicine News. "And since there is no proven treatment for the prevention of esophagitis during concurrent chemotherapy and radiation therapy, we decided to try honey, because of the reported success in head and neck mucositis in several small studies. "And neither liquid honey nor honey lozenges worked better than standard supportive care in reducing pain from esophagitis, so I would not encourage patients to take Manuka honey, because it didn't work and it's expensive." The study was presented at the annual meeting of the American Society of Radiation Oncology, held in San Francisco, California. Investigators included 163 lung cancer patients who were undergoing concurrent chemotherapy and radiation therapy. Approximately 30% of patients had received 60 Gy of radiation to the esophagus. Patients were randomly assigned to 1 of 3 treatment arms: 56 patients received standard supportive care; 53 patients received 10 mL of Manuka honey orally, 4 times a day; and 54 patients received 1 lozenge consisting of 10 mL of dehydrated Manuka honey, 4 times per day. The honey was taken on the first day of treatment and [...]

Charlotte Parker2014-09-22T13:04:25-07:00September, 2014|Oral Cancer News|

AACR says that new drug may assist therapy for Head and Neck Cancer

Source: hcplive.comAuthor: THURSDAY, Sept. 18, 2014 (HealthDay News) -- The investigational drug alpelisib (previously known as BYL719) appears to inhibit activation of the pathway that leads to resistance to cetuximab, an anti-epidermal growth factor receptor agent used in the treatment of head and neck cancer. These findings were presented at the American Association for Cancer Research's special conference "Targeting the PI3K-mTOR Network in Cancer," held from Sept. 14 to 17 in Philadelphia. Pamela Munster, MD, of the University of California in San Francisco, and colleagues tested the combination of BYL719 and cetuximab in vivo in a cetuximab-sensitive and a cetuximab-resistant xenograft model of esophageal squamous cell carcinoma. In a phase Ib study, BYL719 was administered in combination with cetuximab in adults with recurrent or metastatic squamous cell carcinoma of the head and neck that was resistant or intolerant to platinum-based chemotherapy; prior cetuximab therapy was allowed. The researchers found that the addition of BYL719 to cetuximab showed an additive effect in the cetuximab-sensitive model. BYL719 restored sensitivity to cetuximab in the cetuximab-resistant model. In the phase Ib study, as of March 10, 2014, 37 patients have received BYL719 and cetuximab, and the overall response rate is 11%. Based on the data from preclinical studies and the phase Ib study, the combination of alpelisib and cetuximab for squamous cell carcinoma of the head and neck is being explored in a phase II study. "Treatment resistance is often conveyed through activation of the PI3K/AKT/mTOR pathway, and alpelisib is an inhibitor of this pathway," [...]

Charlotte Parker2014-09-22T12:45:41-07:00September, 2014|Oral Cancer News|

Many head and neck cancer patients can avoid neck surgery

Source: medicalxpress.comAuthor: Staff A new study shows that patients with human papillomavirus (HPV) – the same virus associated with both cervical and head and neck cancer – positive oropharyngeal cancer see significantly higher rates of complete response on a post-radiation neck dissection than those with HPV-negative oropharyngeal cancer. Fox Chase Cancer Center researchers presented the findings at the American Society for Radiation Oncology's 56th Annual Meeting on Wednesday, September 17. "For patients that achieve a complete response, neck surgery is probably unnecessary," says Thomas J. Galloway, MD, Attending Physician and Director of Clinical Research at Fox Chase and lead author on the study. After radiation and chemotherapy to remove tumors from the tonsils or back of the tongue, many head and neck cancer patients still have persistent lumps in their neck, albeit perhaps smaller than when they were first diagnosed. "The question is: Do we need to remove those lumps, as well, or can we just let them dissolve on their own?" asks Dr. Galloway. To investigate, he and his colleagues reviewed the medical records from 396 patients whose oropharyngeal tumors had spread to at least one lymph node. Within 180 days after completing radiation therapy, 146 patients underwent neck surgery. For 99 patients, their records indicated whether or not their tumors had likely been triggered by HPV. Interestingly, patients with HPV often respond better to treatment for their oropharyngeal tumors than those without. The researchers noted the same trend here – people who tested positive for HPV (measured by the presence of a protein called [...]

Charlotte Parker2014-09-18T10:27:59-07:00September, 2014|Oral Cancer News|

Update on head and neck cancers, HPV: creating public awareness

Source: www.dentistryiq.com Author: Maria Perno Goldie, RDH, MS Public awareness of head and neck cancer (HNC) is limited, with the lack of awareness including the term head and neck cancer and common symptoms and risk factors, such as tobacco use and human papillomavirus (HPV).1 The online survey of 2,126 randomly selected adults in the United States. Most respondents lacked understanding of the organs or tissues affected by head and neck cancer, with 21% incorrectly identifying brain cancer as head and neck cancer. Only 0.8% of respondents identified HPV infection as a risk factor for mouth and throat cancer, but more were aware of the vaccine. The investigators projected that extensive HPV vaccination could prevent almost 9,000 cases of oropharyngeal cancer yearly. The conclusion was that self-reported and objective measures indicate that few American adults know much about HNC including risk factors such as tobacco use and HPV infection and common symptoms. Strategies to improve public awareness and knowledge of signs, symptoms, and risk factors may decrease the disease burden of HNC and are important topics for future research. The American Dental Association has a pamphlet titled “Get the Facts About Mouth and Throat Cancer.”2 Human papillomavirus type 16 (HPV-16) is a major contributory factor in oropharyngeal squamous cell carcinoma (OPSCC). The detection of primary OPSCC is often delayed due to the complicated anatomy of the oropharynx. One study examined the possibility of HPV-16 DNA detection in pretreatment and posttreatment plasma and saliva and its possible role as a marker of [...]

Oral Cancer Foundation News Team - A2014-09-17T19:26:13-07:00September, 2014|Oral Cancer News|

Many throat cancer patients can skip neck surgery

Source: medicalxpress.com Author: Fox Chase Cancer Center A new study shows that patients with human papillomavirus (HPV) – the same virus associated with both cervical and head and neck cancer – positive oropharyngeal cancer see significantly higher rates of complete response on a post-radiation neck dissection than those with HPV-negative oropharyngeal cancer. Fox Chase Cancer Center researchers presented the findings at the American Society for Radiation Oncology's 56th Annual Meeting on Wednesday, September 17. "For patients that achieve a complete response, neck surgery is probably unnecessary," says Thomas J. Galloway, MD, Attending Physician and Director of Clinical Research at Fox Chase and lead author on the study. After radiation and chemotherapy to remove tumors from the tonsils or back of the tongue, many head and neck cancer patients still have persistent lumps in their neck, albeit perhaps smaller than when they were first diagnosed. "The question is: Do we need to remove those lumps, as well, or can we just let them dissolve on their own?" asks Dr. Galloway. To investigate, he and his colleagues reviewed the medical records from 396 patients whose oropharyngeal tumors had spread to at least one lymph node. Within 180 days after completing radiation therapy, 146 patients underwent neck surgery. For 99 patients, their records indicated whether or not their tumors had likely been triggered by HPV. Interestingly, patients with HPV often respond better to treatment for their oropharyngeal tumors than those without. The researchers noted the same trend here – people who tested positive [...]

Oral Cancer Foundation News Team - A2014-09-17T18:59:34-07:00September, 2014|Oral Cancer News|

Targeted radiation, drug therapy combo less toxic for recurrent head, neck cancers

Source: medicalxpress.com Author: University of Pittsburgh Schools of the Health Sciences Patients with a recurrence of head and neck cancer who have previously received radiation treatment can be treated more quickly, safely and with fewer side effects with high doses of targeted radiation known as Stereotactic Body Radiation Therapy (SBRT) in combination with a drug that also carefully targets cancerous tumors. These findings from a UPMC CancerCenter study were presented today at the American Society of Radiation Oncology (ASTRO) annual meeting in San Francisco. SBRT uses concentrated radiation beams in high doses to destroy tumors in difficult or hard-to-reach areas. The treatment is noninvasive, which minimizes damage to surrounding healthy tissue and organs. Clinicians at UPMC CancerCenter, partner with the University of Pittsburgh Cancer Institute (UPCI), used SBRT in combination with the drug cetuximab for patients who had a recurrence of squamous cell carcinoma of the head and neck after going through radiation. "The prognosis for patients who have a recurrence of head and neck cancer that cannot be surgically removed is already poor. Traditional treatments can be associated with significant side effects so severe that patients give up on the therapy altogether," said Dwight E. Heron, M.D., vice chairman of radiation oncology at UPCI and director of Radiation Oncology Services at UPMC CancerCenter. "By taking these patients through an abbreviated course of targeted drug and SBRT, we minimize the side effects of treatment." Doctors treated 48 patients with the combination therapy between July 2007 and March 2013. All of [...]

Oral Cancer Foundation News Team - A2014-09-17T18:54:50-07:00September, 2014|Oral Cancer News|

The Debate Over E-Cigarettes Begins

Source: TIME.comAuthor: Mandy Oaklander The debate over the safety of e-cigarettes, and whether they will help smokers to quit, or simply make it easier for them to start or continue lighting up, heated up this week. On one side of the disagreement are those pushing for regulation. In 2013, the World Health Organization (WHO) began a review of data on e-cigarettes and based on studies conducted so far, last month recommended tighter regulation of the devices to protect consumers’ health. But in a new article published in the journal Addiction, other scientists argue that the WHO misinterpreted the data in a “misleading” way and that the group’s advice for more stringent oversight is problematic. In the Addiction paper, the authors take issue with nine of WHO’s conclusions, some of which surround the safety of e-cigarettes, their toxin levels, and how likely younger people are to adopt them. They cite some of the same data as the original WHO review did, but interpret it differently, arguing that the benefits of e-cigarettes, especially as an effective tool in helping some smokers to quit, outweigh potential risks from the chemicals and nicotine used in the devices. Therefore, they say, e-cigarettes should be more accessible than the WHO recommendations would allow. “…The WHO’s approach will make it harder to bring these products to market than tobacco products, inhibit innovation and put off smokers from using e-cigarettes, putting us in danger of foregoing the public health benefits these products could have,” said Ann McNeill, lead author [...]

Charlotte Parker2014-09-10T09:57:34-07:00September, 2014|Oral Cancer News|