Description of Invention:
This technology describe development of H5N1 influenza vaccine candidates in which mutations have been introduced to increase affinity of the hemagglutinin (HA) for the sialic acid receptor found in humans, which have a different sialic acid linkage than the corresponding avian receptor. These mutations could therefore result in a higher immune response in vaccines, producing a more robust response than other H5N1 vaccine candidates that retain their avian receptor preferences. These mutations also changed antibody-sensitivity of the vaccine candidates. The H5 modifications can be expressed from DNA or adenoviral vectors, or the proteins themselves can be administered. Additionally, these mutated HAs can be used to develop therapeutic monoclonal antibodies. The technology describes three (3) unique monoclonal antibodies that react with wild-type H5, wild-type H5 and mutant HA equivalently, and the mutant HA, respectively.
Applications:
Prophylactic influenza vaccine
Therapeutic antibodies
Development Status:
Animal (mouse) data available.
For Additional Information Please Contact: Cristina Thalhammer-Reyero PhD MBA
NIH Office of Technology Transfer
6011 Executive Blvd, Suite 325
Rockville, MD 20852-3804
Phone: (301) 435-4507
Email: thalhamc@mail.nih.gov
Fax: (301) 402-0220
