InvestorsHub Logo

bow-tie

10/20/18 10:06 AM

#10015 RE: Work Harder #10013

† Present address: International AIDS Vaccine Initiative, 110 William Street, 27th Floor, New York, NY 10038.

Universal Influenza B Vaccine Based on the Maturational Cleavage Site of the Hemagglutinin Precursor

https://jvi.asm.org/content/79/12/7380

Virosome Structure: Virosomes are spherical unilamellar vesicles with a mean diameter of around 150 nm. Influenza virus is most commonly used for virosome production.
Virosomes cannot replicate but are pure fusion-active vesicles. In contrast to liposomes, virosomes contain functional viral envelope glycoproteins: influenza virus hemagglutinin (HA) and neuraminidase (NA) are intercalated within the phospholipid bilayer membrane.
Further characteristics of virosomes depend on the choice of bilayer components. Virosomes can be optimized for maximal incorporation of the drug or for the best physiological effect by modifying the content or type of membrane lipids used. It is even possible to generate carriers for antisense-oligonucleotides or other genetic molecules, depending on whether positively or negatively loaded phospholipids are incorporated into the membrane.
Various ligands, such as cytokines, peptides, and monoclonal antibodies (MAbs) can be incorporated into the virosome and displayed on the virosomal surface. Even tumor-specific monoclonal antibody fragments (Fab) can be linked to virosomes to direct the carrier to selected tumor cells 21.
https://investorshub.advfn.com/boards/read_msg.aspx?message_id=132940054