Upstream Biosciences Inc. ~ Press Releases

PRESS RELEASE - APRIL 26, 2006

Upstream Biosciences Inc. Appoints University of British Columbia's Dr. Artem Cherkasov To Scientific Advisory Board

April 25, 2006 - Upstream Biosciences Inc. (OTCBB:UPBS) ("Upstream" or "the Company"), an emerging leader in the field of genetic diagnostics for cancer and the prediction of drug response, has announced today the appointment of Dr. Artem Cherkasov to its scientific advisory board. Dr. Cherkasov is a professor in the University of British Columbia (UBC) Faculty of Medicine at Vancouver General Hospital.

Dr. Cherkasov, a faculty member of UBC Department of Infectious Disease, is the author of more than 100 scientific articles in the fields of biochemistry, molecular modeling, and drug design. Dr. Cherkasov was formerly a researcher at BC Cancer Research Center's Genome Sciences Centre.

"Dr. Cherkasov's unique experience in cancer genetics, pharmacology, and infectious disease will be a valuable asset to our research team," says Upstream CEO Joel Bellenson. "Many forms of cancer, including liver and cervical cancer, are closely associated with infectious disease. We are excited that our technology may aid in the early detection and treatment of these diseases."

"I look forward to helping Upstream develop its novel approach to cancer diagnostics and drug response," says Dr. Cherkasov.

Upstream is developing diagnostic tests that may aid in the early detection of cancer by identifying individuals with disease susceptibility. Upstream is also developing diagnostic tests that may determine whether a drug will be useful or harmful to an individual patient based on their genetic profile. According to the Journal of the American Medical Association, each year 100,000 people die in the United States due to adverse reactions to prescription drugs.

For more information, please contact Samantha Haynes at 1-800-539-0289 or info@upstreambio.com.

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