Part One Could ViRexx Medical’s “Linked Recognition” Research Lead to a Cancer Vaccine
18 March 2008
A SCIENTIST’S 20-YEAR UNFINISHED JOURNEY TO TREAT HBV MAY OPEN THE DOOR TO A NEW CLASS OF FLEXIBLE VACCINES
While preparing a lecture in biochemistry and virology for his graduate students at the University of Alberta in the early 1980s, Dr. Lorne Tyrrell ran across a study just published in the medical journal, Cell. The research by William Mason and Jesse Summers, entitled “Replication of Hepatitis B,” discussed their study of the hepatitis B virus in infected duck liver.
After studying their duck model theory, Tyrrell speculated if the hepatitis B virus (HBV) might be susceptible to antiviral agents, and consulted with a colleague, who specialized in nucleoside chemistry. Both medical professors became excited about the possibility of inhibiting the HBV virus with nucleoside analogues. Thus began the infectious disease specialist’s first leg of a journey, which led to the use of lamivudine as a therapy for chronic HBV infections.
More than 350 million people across the world, especially in Asia, now had new hope, some for their lifelong infections contracted vertically at birth from their mothers. In 2003, the Center for Disease Control estimated 73,000 Americans were infected with HBV, and about 5,000 die each year from sickness caused by HBV. It is reportedly 100 times more contagious than the AIDS virus. Many in North America, who had been infected with the virus from sexual transmission or intravenous drug use, were offered a potentially life-saving therapy.
Licensed in 1998, lamivudine is now used in 120 countries as a standard therapy for chronic HBV carriers. The compound is also used in combination with other drugs, such as protease inhibitors, for HIV therapy. Development rights were licensed to Glaxo Wellcome in 1990, which is now sold under the brand name Epivir
Tags: cancer, disease, HBV, HCV, hepatitis, hepatitis b, HIV, immune system, infections, medical, virus