Methods for Prevention and Treatment of Polyomavirus Infection or Reactivation (E-179-2007)

Available for licensing and commercial development are methods of using Tranilast [N-(3',4'-dimethoxycinnamoyl)anthranilic acid] in the prevention and treatment of human polyomavirus infection. Treatment with Tranilast decreases viral protein expression for two human polyomavirus species, JC virus (JCV) and BK virus (BKV). Furthermore, the increase in JCV/BKV protein production observed upon the addition of TGF-beta could also be effectively abolished by Tranilast co-treatment. This is of relevance because TGF-beta has previously been demonstrated to increase during immunosuppressive conditions, including HIV infection and kidney transplantation.

JCV is responsible for demyelization of the central nervous system, which is observed in cases of progressive multifocal leukoencephalopathy (PML). PML is most frequently seen in patients with HIV/AIDS, but is also a contributing factor in fatalities in patients with leukemia, lymphoma, and connective tissue diseases, in addition to individuals receiving immunosuppressive therapy for autoimmune disorders or prevention of transplant rejection. BKV is associated with serious clinical syndromes such as viruria and viremia, ureteral ulceration and stenosis, and hemorrhagic cystitis and has a causative role in polyomavirus-associated nephrophathy in as many as 10% of all renal transplant recipients. Currently, there are no effective antiviral agents available to treat these opportunistic infections. In all observed cases, activation of either JCV or BKV in immunosuppressed patients has resulted in fatalities.

Potential Commercial Applications: Competitive Advantages:
Use in treatment and prevention of polyomavirus infection in immunocompromised patients. Specific target is the prevention of PML in treatment therapies for MS patients. 

Development Stage:
In vitro data is currently available and inventors are actively developing the technology.


Veerasamy Ravichandran (NINDS)  ➽ more inventions...

Eugene Major (NINDS)  ➽ more inventions...

Jeffrey Kopp (NIDDK)  ➽ more inventions...

Intellectual Property:
PCT Application No. PCT/US2008/068996
US Application No. 60/948,426

Collaboration Opportunity:

The National Institute of Neurological Disorders and Stroke is seeking statements of capability or interest from parties interested in collaborative research to further develop, evaluate, or commercialize treatment and prevention of polyomavirus infections in immunocompromised patients, with particular interest in JCV and demyelination. Please contact Melissa Maderia, Ph.D., at for more information.

Licensing Contact:
Admin. Licensing Specialist (ALS),

OTT Reference No: E-179-2007-0
Updated: Jun 14, 2010