Navigation Links
New oncolytic virus shows improved effectiveness in preclinical testing
Date:10/27/2011

COLUMBUS, Ohio A new fourth-generation oncolytic virus designed to both kill cancer cells and inhibit blood-vessel growth has shown greater effectiveness than earlier versions when tested in animal models of human brain cancer.

Researchers at the Ohio State University Comprehensive Cancer Center Arthur G. James Cancer Hospital and Richard J. Solove Research Institute (OSUCCC James) are developing the oncolytic virus as a treatment for glioblastoma, the most common and deadly form of brain cancer (average survival: 15 months after diagnosis).

The new oncolytic virus, called 34.5ENVE, improved survival of mice with transplanted human glioblastoma tumors by 50 percent in a majority of cases compared with the previous-generation oncolytic virus.

The study was published online in the journal Molecular Therapy.

"These findings show the amazing therapeutic efficacy of this new oncolytic virus against four different glioblastoma models in animals," says cancer researcher Dr. Balveen Kaur, associate professor of neurological surgery, and a member of the OSUCCC James viral oncology research program.

The new oncolytic virus is engineered to replicate in cells that express the protein nestin. First identified as a marker for neuronal stem cells, nestin is also expressed in glioblastoma and other malignancies including gastrointestinal, pancreatic, prostate and breast cancer.

"We believe that nestin-driven oncolytic viruses will prove valuable for the treatment of many types of cancer," Kaur says.

The new oncolytic virus also carries a gene to inhibit tumor blood-vessel growth. That gene, called Vstat120, was added to increase its anti-tumor effectiveness and prolong the virus's presence within tumors.

In this study of eight animals with intracranial tumors, six lived longer than 80 days, and these were later found to be tumor free. By comparison, control mice survived a median of 20 days, and mice treated with a first-, a second-, and a third-generation oncolytic virus survived 33, 34 and 53 days, respectively.

"Magnetic resonance imaging and histological analyses revealed extensive tumor destruction in animals treated with 34.5 ENVE," says Kaur, who is also chief of Ohio State's Dardinger Laboratory of Neurosciences. "We hope that we can soon evaluate the safety of this virus in patients with cancer."


'/>"/>

Contact: Darrell E. Ward
Darrell.Ward@osumc.edu
614-293-3737
Ohio State University Medical Center
Source:Eurekalert

Related medicine news :

1. Oncolytic viruses effectively target and kill pancreatic cancer stem cells
2. BUSM researchers show an oncolytic virus switches off cancer cell survival signal
3. Oncolytic viruses mediating anti-tumor immunity in human cancer patients
4. Oncos Therapeutics raises €4 million ($5.3 million) to develop oncolytic viruses into cancer treatment
5. Veterinary researchers discover first US strains of hepatitis E virus from rabbits
6. Robins Are Super-Spreaders of West Nile Virus, Expert Says
7. Antibody treatment protects monkeys from Hendra virus disease
8. Researchers from Boston University receive grant to develop improved virus detection system
9. Treatment of common virus can reduce tumour growth
10. Could targeting a virus treat a common pediatric brain tumor?
11. UCLA scientists find H1N1 flu virus prevalent in animals in Africa
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/27/2016)... ... May 27, 2016 , ... More than a third of ... not surprising that bariatric surgery has received increased attention in recent years, as an ... when it comes to weight loss, most people are familiar with the basic requirements ...
(Date:5/27/2016)... ... ... W.S. Badger Co. Inc ., the maker of certified organic and ... of the best small businesses for new dads by Fatherly, the digital lifestyle guide ... progressive benefits to new parents on the organization’s 2016 Best Places to Work ...
(Date:5/27/2016)... York, NY (PRWEB) , ... May 27, 2016 , ... ... factors of a stroke, which we as a society can control and change. , ... stroke occurs nearly every 40 seconds within the United States. Plus, with an estimated ...
(Date:5/27/2016)... ... 2016 , ... Beleza Medspa has initiated a new program to ... the first time that Coolsculpting is being used for for more than just cosmetic ... they meet the prescribed body-fat standard, measured by the circumference-based tape method. The ...
(Date:5/27/2016)... Wis. (PRWEB) , ... May 27, 2016 , ... ... $90,000 in scholarships to students studying complementary medicine. Allison Outerbridge is this year’s ... accepted her award on May 18 at the university’s Student Leadership Awards ceremony. ...
Breaking Medicine News(10 mins):
(Date:5/26/2016)... 26, 2016   Change Healthcare , ... network solutions and technology-enabled services designed to ... into a strategic channel partnership with SourceMed, ... solutions and revenue cycle management services that ... rehabilitation clinics to optimize revenue, operational efficiency ...
(Date:5/25/2016)... 2016 According to a new ... 2D, 4D), by Therapeutic Area (Oncology, Cosmeceutical/Plastic Surgery), by ... Device Manufacturers, Hospitals/ Clinics) - Forecast to 2021", published ... Market for the forecast period of 2016 to 2021. ... by 2021 from USD 117.3 Million in 2016, at ...
(Date:5/25/2016)... , May 25, 2016  Zymo Research ... for their new reference materials that help researchers ... sample collection to analyses. The rapid growth of ... for researchers to have standard methods to improve ... generated. Biases inherently exist at every step of ...
Breaking Medicine Technology: