HOME >> BIOLOGY >> NEWS
UNC to test virus treatment for recurrent head and neck cancer

Chapel Hill - The University of North Carolina at Chapel Hill School of Medicine is one of nine medical centers nationally trying to determine if injections of a genetically modified common cold virus may be an effective treatment for recurrent head and neck cancer.

Under investigation is a form of adenovirus that's modified to selectively infect and destroy tumor cells only.

Unmodified, adenoviruses can infect and multiply in both cancer and normal cells, thereby killing all cells. One of the genes that enable the virus to replicate is E1B. This gene's protein inactivates the tumor suppressor gene, p53, which normally protects the cell from adenovirus infection. "Unless p53 is inactivated, adenoviruses cannot replicate," explained Wendell G. Yarbrough, MD, assistant professor of otolaryngology/head and neck surgery at UNC-CH. "About 50% of malignant head and neck tumors are made of cells with an inactivated p53 gene. Cancer cells are the only cells in the body in which p53 has been inactivated allowing for specific killing of cancer cells by the modified virus." Adenovirus with a mutated or deleted E1B gene will not produce the protein needed to inactivate p53. This means the virus replicates only in tumor cells, not in normal ones.

"And when this virus gets in a cancer cell with inactivated p53, it replicates, makes new adenoviruses, and then as part of its normal life cycle, it lyses or kills that cell and releases viruses that can then infect adjacent cancer cells," Yarbrough said.

Yarbrough, the principal investigator for UNC in this clinical trial, said therapy using E1B-mutated adenovirus ties in with his basic research on the gene ARF, an activator of p53. "In fact, we're now combining ARF with this virus to look at the effect of this combination on tumor cells."

The researcher notes that previous studies using adenoviruses as cancer therapy have relied on viruses unable to replicate. But the modified adenovirus developed by Ony
'"/>

Contact: Leslie H. Lang
llang@med.unc.edu
919-843-9687
University of North Carolina School of Medicine
13-Mar-2001


Page: 1 2

Related biology news :

1. Pacific Northwest team unveils largest virus proteome to date
2. No role for simian virus 40 in human pleural mesotheliomas
3. Cannabis may help combat cancer-causing herpes viruses
4. Scientists find nanowires capable of detecting individual viruses
5. $7.5 Million grant to Yale researchers for role of viruses in cancer
6. Simian virus 40 not associated with non-Hodgkin lymphoma, study shows
7. Common cold virus can cause polio in mice when injected into muscles
8. Defensive action by influenza viruses demonstrated by Hebrew university researcher
9. Study of flu patients reveals virus outsmarting key drug
10. Images reveal how rotavirus - leading cause of diarrhea - enters cells
11. Bright idea could doom cancer and viruses, say Purdue scientists

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:12/2/2016)... 1, 2016 The report "Biometric ... Future Technology (Iris Recognition System), Vehicle Type (Passenger ... Forecast to 2021", published by MarketsandMarkets, the market ... 2016, and is projected to grow to USD ... 14.06%.      (Logo: http://photos.prnewswire.com/prnh/20160303/792302) ...
(Date:11/30/2016)... Nov. 30, 2016  higi SH llc (higi) ... initiative targeting national brands, industry thought-leaders and celebrity ... respective audiences for taking steps to live healthier, ... in 2012, higi has built the largest self-screening ... 38 million people who have conducted over 185 ...
(Date:11/29/2016)... Nearly one billion matches per second with DERMALOG,s high-speed AFIS    ... ... DERMALOG is Germany's largest Multi-Biometric supplier: The company's Fingerprint ... ... Multi-Biometric supplier: The company's Fingerprint Identification System is part of an efficient ...
Breaking Biology News(10 mins):
(Date:12/6/2016)... Texas (PRWEB) , ... December 06, 2016 , ... Discovering ... new ways to see with lasers what’s happening in our brains. And searching for ... Texas’ rising stars in research being honored with the 2017 Edith and Peter ...
(Date:12/6/2016)... 6, 2016 According to a new market ... (Polymer, Glass, Silicon), Application (Genomics, Proteomics, Capillary Electrophoresis, POC, Clinical, Environmental, ... global market is projected to reach USD 8.78 Billion by 2021 ... during the forecast period (2016 to 2021). ... ...
(Date:12/6/2016)... MELBOURNE, Australia , Dec. 6, 2016  The ... Health Informatics Society of Australia (HISA) today announced ... technology startup exchange program between Australia ... city in the world. HISA and ... are initiating a program to create a global health ...
(Date:12/5/2016)... ... 05, 2016 , ... This composition patent, U.S. Patent No. ... The composition claims are not limited to any particular process to make or ... carbon fibers, graphene, and other materials. A continuation application, U.S. Patent App. ...
Breaking Biology Technology:
Cached News: