Navigation Links
New influenza vaccine takes weeks to mass produce

Using cell-based methods researchers have developed a commercially viable method for mass producing effective vaccines against potential pandemic influenza strains in weeks instead of the months required for traditional egg-based vaccines. They report their results today at the 2006 ASM Biodefense Research

The next flu pandemic could happen any time," says Keyang Wang, a scientist at Protein Sciences Corporation (PSC) and a researcher on the study. "The most effective method to control such an outbreak is the widespread use of a vaccine, preferably in a pro-active manner, so that the immune system is primed prior to actual virus exposure. The traditional egg-based method requires 3 to 6 months to develop the vaccine. With our cell-based method, as soon as the pandemic strain is identified, a matched vaccine can be massively produced within 4 weeks."

The vaccine strategy pursued by Protein Sciences, known commercially as FluBlok, uses a purified protein from the surface of the virus called hemagglutinin (the H part of a virus' designation, like H5N1 for the current avian influenza) to elicit an immune response to a specific strain of influenza. The protein is produced by first extracting the genes responsible for the production of hemagglutinin from the influenza virus and inserting them into a baculovirus. Specific host cells are then infected with the baculovirus and produce recombinant hemagglutinin (rHA). Phase II clinical trials show that rHA-based vaccines produced using this system are safe, elicit immunity equal to or greater than egg-based vaccines, and are 100% effective in the prevention of cell culture confirmed influenza.

Wang and his colleagues report the successful production of rHA from 4 strains of influenza that scientists believe to be likely the cause of the next pandemic (H5, H7, H9, and H2) at a level where manufacturing costs are expected to be equal to or less than that of traditional egg-based vaccines.

"It has been suggested that the next pandemic strain may be derived from H5, H7, H9 or H2 influenza viruses. The preparation of the recombinant baculoviruses for the production of these antigens and the successful purifications gives us a great advantage in fighting against a potential influenza pandemic, if it derived from any of these strains," says Wang. "Starting from a stocked recombinant baculovirus bank, a closely matched vaccine can be massively produced within 2 weeks."

PSC has recently signed a Letter of Intent which will support commercial scale manufacturing with the capacity to produce 6 Million doses of monovalent pandemic vaccine per week.


'"/>

Source:American Society for Microbiology


Related biology news :

1. Computers to be used to find blueprint for new influenza drug
2. Less virulent strains of avian influenza can infect humans
3. Drug resistant avian influenza viruses more common in Southeast Asia than North America
4. New vaccine platform may fight infections with causes from influenza to bioterrorism
5. First big influenza genome study reveals flu evolution
6. Web model of influenza-host lifecycles will aid scientists in creating anti-viral drugs
7. Study outlines genetic differences between potential pandemic influenza strains
8. Avian influenza virus in mammals spreads beyond the site of infection to other organ systems
9. How can we protect patients with weakened immune systems from influenza?
10. Mouse study reveals new clues about virulence of 1918 influenza virus
11. Molecular anatomy of influenza virus detailed
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:6/16/2016)... 2016 The global ... reach USD 1.83 billion by 2024, according to ... Technological proliferation and increasing demand in commercial buildings, ... drive the market growth.      (Logo: ... development of advanced multimodal techniques for biometric authentication ...
(Date:6/9/2016)... in attendance control systems is proud to announce the introduction of fingerprint attendance control ... right employees are actually signing in, and to even control the opening of doors. ... ... ... Photo - ...
(Date:6/7/2016)... , June 7, 2016  Syngrafii Inc. ... a business relationship that includes integrating Syngrafii,s patented ... branch project. This collaboration will result in greater ... the credit union, while maintaining existing document workflow ... http://photos.prnewswire.com/prnh/20160606/375871LOGO ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... , June 23, 2016 A person commits a ... crime scene to track the criminal down. An ... Food and Drug Administration (FDA) uses DNA evidence to track ... Sound far-fetched? It,s not. The FDA has increasingly ... support investigations of foodborne illnesses. Put as simply as possible, ...
(Date:6/23/2016)... 23, 2016   EpiBiome , a precision microbiome ... in debt financing from Silicon Valley Bank (SVB). The ... to advance its drug development efforts, as well as ... "SVB has been an incredible strategic partner to ... traditional bank would provide," said Dr. Aeron Tynes ...
(Date:6/23/2016)...  Blueprint Bio, a company dedicated to identifying, protecting ... has closed its Series A funding round, according to ... "We have received a commitment from Forentis Fund that ... meet our current goals," stated Matthew Nunez . ... complete validation on the current projects in our pipeline, ...
(Date:6/23/2016)... ... June 23, 2016 , ... Velocity Products, a division of ... and optimized exclusively for Okuma CNC machining centers at The International Manufacturing Technology ... among several companies with expertise in toolholding, cutting tools, machining dynamics and distribution, ...
Breaking Biology Technology: