by Staff Writers
East Lansing MI (SPX) May 31, 2012
international research team has manufactured a new protein that can combat deadly flu epidemics. The paper, featured on the cover of the current issue of Nature Biotechnology, demonstrates ways to use manufactured genes as antivirals, which disable key functions of the flu virus, said Tim Whitehead, assistant professor of chemical engineering and materials science at Michigan State University.
"Our most potent design has proven effective on the vulnerable sites on many pandemic influenza viruses, including several H1N1 (Spanish flu, Swine flu) and H5N1 (Avian flu) subtypes," said Whitehead, the paper's co-lead author.
"These new therapeutics are urgently needed, so we were especially pleased to see that it neutralizes H1N1 viruses with potency."
From its earlier research, the team used computer-aided design to engineer proteins that targeted vulnerable sites on the highly adaptable virus. From there, researchers optimized their designer proteins by comprehensively mapping the mutations that gave the proteins a strong advantage when attacking the viruses' targeted areas.
The team improved their proteins through a process called "DNA deep sequencing." This allowed Whitehead and his colleagues to simultaneously sequence millions of variants of their manufactured proteins, identify and keep the beneficial mutations and optimize the proteins' performance.
"By taking only the best mutations, we can reprogram our proteins to burrow into viruses at key locations and render them harmless," he said. "Our work demonstrates a new approach to construct therapeutic proteins, which we hope will spur development of new protein drugs by the biopharmaceutical industry."
This research also laid the groundwork for future treatments of all flu viruses as well as other diseases such as smallpox, Whitehead added.
Whitehead's co-authors included researchers from the University of Washington, the Scripps Research Institute (La Jolla, Calif.), Naval Health Research Center (San Diego) and the Weizmann Institute of Science (Rehovot, Israel).
The research was funded by Defense Research Projects Agency, the Defense Threat Reduction Agency, the National Institutes of Health, the National Institute of Allergy and Infectious Diseases and the National Institute of General Medical Sciences.
Michigan State University
Epidemics on Earth - Bird Flu, HIV/AIDS, Ebola
|The content herein, unless otherwise known to be public domain, are Copyright 1995-2014 - Space Media Network. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA Portal Reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement,agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement|