Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

New indicator may help identify patients with increased risk from throat cancer

17.01.2012
Independent of other factors, such as smoking history and HPV status, matted lymph nodes appear to signal increased chance of oropharyngeal cancer spreading to other parts of the body

Researchers at the University of Michigan Health System have found a new indicator that may predict which patients with a common type of throat cancer are most likely have the cancer spread to other parts of their bodies.

Patients with oropharyngeal squamous cell carcinoma who had "matted" lymph nodes – nodes that are connected together – had a 69 percent survival rate over three years, compared to 94 percent for patients without matted nodes, according to a study published online ahead of print publication in Head & Neck.

The oropharynx is an area that includes the back of the tongue, soft palate, throat and tonsils.

"The spread of cancer throughout the body accounts for about 45 percent of the deaths from oropharyngeal carcinoma," says the study's senior author, Douglas B. Chepeha, M.D., M.S.P.H., an associate professor of otolaryngology head and neck surgery at the U-M Medical School. "Our findings may help doctors identify patients who are at higher risk for having their cancer metastasize and who would benefit from additional systemic therapy. Conversely, some patients without matted nodes may benefit from a reduction of the current standard treatment, which would cut down on uncomfortable side effects."

Notably, the findings indicate an increased risk independent of other established prognostic factors, such as the patient's history of smoking or whether they have the Human papillomavirus (HPV), the study found. Smoking (tobacco and marijuana), heavy alcohol use and HPV infection have each been linked to the development of oropharyngeal squamous cell carcinoma.

Matted nodes appear to be an especially strong indicator of increased risk among patients who are HPV-positive, even though HPV-positive patients had better overall outcomes than their HPV-negative peers. The patients with the best outcomes were HPV-positive non-smokers.

"It's not clear why we're finding these survival differences for patients who have matted nodes," says study lead author Matthew E. Spector, M.D., a head and neck surgery resident at U-M who won a national award from the American Head and Neck Society for this work. "It is possible that there are biological and molecular differences in these types of tumors, which can be explored in future research."

The results affirm the value of having a team of doctors and researchers from different specialties – radiology, oncology, biostatistics and surgery – working together to find advances that can directly benefit patients, Chepeha says. "This was a collaborative effort and all of the authors made important contributions," he adds.

The study tracked 78 cancer patients who were part of a clinical trial evaluating two cancer drugs in combination with intensity-modulated radiation therapy. All the patients had stage III or IV squamous cell carcinoma of the oropharynx and had not had any previous treatment. Sixteen of the 78 patients had matted nodes.

"It's significant that we've identified this new marker that can help us predict which patients have worse survival odds," Chepeha says. "Now we need to go one step further and figure out what mechanisms are at work and how we can use this knowledge to improve survival rates."

Head and neck cancer statistics: An estimated 52,140 people will be diagnosed with head and neck cancer this year, and an estimated 11,460 people will die from the disease, according to the American Cancer Society.

Additional authors: K. Kelly Gallagher, M.D.; Emily Light, M.S.; Mohannad Ibrahim, M.D.; Eric J. Chanowski; Jeffrey S. Moyer, M.D.; Mark E. Prince, M.D.; Gregory T. Wolf, M.D.; Carol R. Bradford, M.D.; Kitrina Cordell, D.D.S, M.S.; Jonathan B. McHugh, M.D.; Thomas Carey, Ph.D.; Francis P. Worden, M.D.; Avraham Eisbruch, M.D., all of U-M.

Disclosure: None.

Funding: The research was supported by a Specialized Program of Research Excellence (SPORE) in Head and Neck Cancer grant from the National Cancer Institute.

Citation: "Matted Nodes Are Associated With A Poor Prognosis In Oreopharyngeal Squamous Cell Carcinoma Independent of HPV and EGFR Status," Head & Neck, Jan. 13, 2012.

Resources:

U-M Comprehensive Cancer Center head and neck cancer page: http://www.cancer.med.umich.edu/cancertreat/headandneck/index.shtml

U-M Cancer AnswerLine: 800-865-1125

Clinical trials at U-M: http://umclinicalstudies.org/cancer

Ian Demsky | EurekAlert!
Further information:
http://www.umich.edu

More articles from Health and Medicine:

nachricht Unique brain 'fingerprint' can predict drug effectiveness
11.07.2018 | McGill University

nachricht Direct conversion of non-neuronal cells into nerve cells
03.07.2018 | Universitätsmedizin der Johannes Gutenberg-Universität Mainz

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: First evidence on the source of extragalactic particles

For the first time ever, scientists have determined the cosmic origin of highest-energy neutrinos. A research group led by IceCube scientist Elisa Resconi, spokesperson of the Collaborative Research Center SFB1258 at the Technical University of Munich (TUM), provides an important piece of evidence that the particles detected by the IceCube neutrino telescope at the South Pole originate from a galaxy four billion light-years away from Earth.

To rule out other origins with certainty, the team led by neutrino physicist Elisa Resconi from the Technical University of Munich and multi-wavelength...

Im Focus: Magnetic vortices: Two independent magnetic skyrmion phases discovered in a single material

For the first time a team of researchers have discovered two different phases of magnetic skyrmions in a single material. Physicists of the Technical Universities of Munich and Dresden and the University of Cologne can now better study and understand the properties of these magnetic structures, which are important for both basic research and applications.

Whirlpools are an everyday experience in a bath tub: When the water is drained a circular vortex is formed. Typically, such whirls are rather stable. Similar...

Im Focus: Breaking the bond: To take part or not?

Physicists working with Roland Wester at the University of Innsbruck have investigated if and how chemical reactions can be influenced by targeted vibrational excitation of the reactants. They were able to demonstrate that excitation with a laser beam does not affect the efficiency of a chemical exchange reaction and that the excited molecular group acts only as a spectator in the reaction.

A frequently used reaction in organic chemistry is nucleophilic substitution. It plays, for example, an important role in in the synthesis of new chemical...

Im Focus: New 2D Spectroscopy Methods

Optical spectroscopy allows investigating the energy structure and dynamic properties of complex quantum systems. Researchers from the University of Würzburg present two new approaches of coherent two-dimensional spectroscopy.

"Put an excitation into the system and observe how it evolves." According to physicist Professor Tobias Brixner, this is the credo of optical spectroscopy....

Im Focus: Chemical reactions in the light of ultrashort X-ray pulses from free-electron lasers

Ultra-short, high-intensity X-ray flashes open the door to the foundations of chemical reactions. Free-electron lasers generate these kinds of pulses, but there is a catch: the pulses vary in duration and energy. An international research team has now presented a solution: Using a ring of 16 detectors and a circularly polarized laser beam, they can determine both factors with attosecond accuracy.

Free-electron lasers (FELs) generate extremely short and intense X-ray flashes. Researchers can use these flashes to resolve structures with diameters on the...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Leading experts in Diabetes, Metabolism and Biomedical Engineering discuss Precision Medicine

13.07.2018 | Event News

Conference on Laser Polishing – LaP: Fine Tuning for Surfaces

12.07.2018 | Event News

11th European Wood-based Panel Symposium 2018: Meeting point for the wood-based materials industry

03.07.2018 | Event News

 
Latest News

Subaru Telescope helps pinpoint origin of ultra-high energy neutrino

16.07.2018 | Physics and Astronomy

Barium ruthenate: A high-yield, easy-to-handle perovskite catalyst for the oxidation of sulfides

16.07.2018 | Life Sciences

New research calculates capacity of North American forests to sequester carbon

16.07.2018 | Earth Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>