Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Immune cells predict success of head and neck cancer treatment

27.04.2010
Finding could help target treatments to avoid unnecessary side effects

Levels of a key type of immune cell are higher in head and neck cancer patients whose tumors are linked to the human papillomavirus, or HPV, according to researchers at the University of Michigan Comprehensive Cancer Center.

The finding suggests a way to predict which tumors are most likely to respond to chemotherapy and radiation and allow doctors to choose the best treatment option up front.

“In the past, we would give toxic chemotherapy to a patient, look at how the tumor responded and then decide whether the patient needed surgery or radiation. Now with patients who have HPV-positive cancers, this study suggests we can look in the microscope, measure the level of these immune cells and, based on that, select a treatment that is going to be potentially less toxic for the patient and most effective at curing the cancer,” says study author Gregory T. Wolf, M.D., professor and chair emeritus of otolaryngology at the U-M Medical School.

Results of the study will be presented April 29 at the American Head and Neck Society annual meeting.

The researchers looked at 66 patients with oropharyngeal cancer, which includes cancers of the tonsils and the tongue base. They measured levels of several immune system cells in the blood and tracked HPV status.

The HPV-positive patients had higher levels of a subset of T-lymphocyte cells, a type of immune cell that is responsible for killing tumor cells. Patients who responded to an initial round of chemotherapy also had higher levels of these cells, while patients whose cancer recurred had lower levels.

“When we looked at how successful chemotherapy and radiation were, the levels of those killer T-lymphocyte cells predicted who was going to do well. That ability to predict response was even better than when we look at whether the tumors were HPV-positive or negative,” says Wolf, director of the Head and Neck Cancer Specialized Program of Research Excellence at the U-M Comprehensive Cancer Center.

Previous studies have shown that HPV-positive head and neck cancers tend to be more responsive to current treatments, and these patients overall tend to have better outcomes than patients with HPV-negative tumors.

The researchers suggest that these new findings could help them devise strategies to boost the immune system of HPV-negative patients and improve the success rate of current therapies.

“We’re actively pursuing how we can capitalize on this information and devise better immunotherapy approaches to head and neck cancer that would be less toxic than surgery or intensive radiation and hopefully cure more patients,” Wolf says.

Head and neck cancer statistics: 35,720 Americans will be diagnosed with head and neck cancer this year and 7,600 will die from the disease, according to the American Cancer Society

Additional U-M authors: Derrick Wansom; Emily Light; Francis Worden, M.D.; Mark Prince, M.D.; Susan Urba, M.D.; Douglas Chepeha, M.D.; Kitrina Cordell, DDS; Avraham Eisbruch, M.D; Jeremy Taylor, Ph.D.; Nisha D’Silva, BDS, Ph.D.; Jeffrey Moyer, M.D.; Carol Bradford, M.D.; and Thomas Carey, Ph.D.

Funding: National Institutes of Health, National Cancer Institute, National Institute on Deafness and Other Communications Disorders, National Institute of Dental and Craniofacial Research, The Diane and Sinabaldo Tozzi Research Fund.

Reference: American Head and Neck Society annual meeting, April 28-29, 2010, Las Vegas

Nicole Fawcett | EurekAlert!
Further information:
http://www.umich.edu

More articles from Life Sciences:

nachricht Protein 'spy' gains new abilities
28.04.2017 | Rice University

nachricht How Plants Form Their Sugar Transport Routes
28.04.2017 | Universität Heidelberg

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: Making lightweight construction suitable for series production

More and more automobile companies are focusing on body parts made of carbon fiber reinforced plastics (CFRP). However, manufacturing and repair costs must be further reduced in order to make CFRP more economical in use. Together with the Volkswagen AG and five other partners in the project HolQueSt 3D, the Laser Zentrum Hannover e.V. (LZH) has developed laser processes for the automatic trimming, drilling and repair of three-dimensional components.

Automated manufacturing processes are the basis for ultimately establishing the series production of CFRP components. In the project HolQueSt 3D, the LZH has...

Im Focus: Wonder material? Novel nanotube structure strengthens thin films for flexible electronics

Reflecting the structure of composites found in nature and the ancient world, researchers at the University of Illinois at Urbana-Champaign have synthesized thin carbon nanotube (CNT) textiles that exhibit both high electrical conductivity and a level of toughness that is about fifty times higher than copper films, currently used in electronics.

"The structural robustness of thin metal films has significant importance for the reliable operation of smart skin and flexible electronics including...

Im Focus: Deep inside Galaxy M87

The nearby, giant radio galaxy M87 hosts a supermassive black hole (BH) and is well-known for its bright jet dominating the spectrum over ten orders of magnitude in frequency. Due to its proximity, jet prominence, and the large black hole mass, M87 is the best laboratory for investigating the formation, acceleration, and collimation of relativistic jets. A research team led by Silke Britzen from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has found strong indication for turbulent processes connecting the accretion disk and the jet of that galaxy providing insights into the longstanding problem of the origin of astrophysical jets.

Supermassive black holes form some of the most enigmatic phenomena in astrophysics. Their enormous energy output is supposed to be generated by the...

Im Focus: A Quantum Low Pass for Photons

Physicists in Garching observe novel quantum effect that limits the number of emitted photons.

The probability to find a certain number of photons inside a laser pulse usually corresponds to a classical distribution of independent events, the so-called...

Im Focus: Microprocessors based on a layer of just three atoms

Microprocessors based on atomically thin materials hold the promise of the evolution of traditional processors as well as new applications in the field of flexible electronics. Now, a TU Wien research team led by Thomas Müller has made a breakthrough in this field as part of an ongoing research project.

Two-dimensional materials, or 2D materials for short, are extremely versatile, although – or often more precisely because – they are made up of just one or a...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Fighting drug resistant tuberculosis – InfectoGnostics meets MYCO-NET² partners in Peru

28.04.2017 | Event News

Expert meeting “Health Business Connect” will connect international medical technology companies

20.04.2017 | Event News

Wenn der Computer das Gehirn austrickst

18.04.2017 | Event News

 
Latest News

How Plants Form Their Sugar Transport Routes

28.04.2017 | Life Sciences

Protein 'spy' gains new abilities

28.04.2017 | Life Sciences

Researchers unravel the social network of immune cells

28.04.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>