A lyophilized formulation of RiVax, a recombinant ricin subunit vaccine, retains immunogenicity
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چکیده
منابع مشابه
Structure of RiVax: a recombinant ricin vaccine
RiVax is a recombinant protein that is currently under clinical development as part of a human vaccine to protect against ricin poisoning. RiVax includes ricin A-chain (RTA) residues 1-267 with two intentional amino-acid substitutions, V76M and Y80A, aimed at reducing toxicity. Here, the crystal structure of RiVax was solved to 2.1 Å resolution and it was shown that it is superposable with that...
متن کاملRiVax, a recombinant ricin subunit vaccine, protects mice against ricin delivered by gavage or aerosol.
Ricin is a plant toxin that is a CDC level B biothreat. Our recombinant ricin A chain vaccine (RiVax), which contains mutations in both known toxic sites, has no residual toxicity at doses at least 800 times the immunogenic dose. RiVax without adjuvant given intramuscularly (i.m.) protected mice against intraperitoneally administered ricin. Furthermore the vaccine without alum was safe and immu...
متن کاملImproved Formulation of a Recombinant Ricin A-Chain Vaccine Iincreases its Stability and Effective Antigenicity
Ricin is a potent toxin associated with bioterrorism for which no vaccine or specific countermeasures are currently available. A stable, non-toxic and immunogenic recombinant ricin A-chain vaccine (RTA 1-33/44-198) has been developed by protein engineering. We identified optimal formulation conditions for this vaccine under which it remained stable and potent in storage for up to 18 months, and...
متن کاملImproved formulation of a recombinant ricin A-chain vaccine increases its stability and effective antigenicity.
Ricin is a potent toxin associated with bioterrorism for which no vaccine or specific countermeasures are currently available. A stable, non-toxic and immunogenic recombinant ricin A-chain vaccine (RTA 1-33/44-198) has been developed by protein engineering. We identified optimal formulation conditions for this vaccine under which it remained stable and potent in storage for up to 18 months, and...
متن کاملProcess development and cGMP manufacturing of a recombinant ricin vaccine: an effective and stable recombinant ricin A-chain vaccine-RVEc™.
Ricin is a potent toxin and a potential bioterrorism weapon with no specific countermeasures or vaccines available. The holotoxin is composed of two polypeptide chains linked by a single disulfide bond: the A-chain (RTA), which is an N-glycosidase enzyme, and the B-chain (RTB), a lectin polypeptide that binds galactosyl moieties on the surface of the mammalian target cells. Previously (McHugh e...
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ژورنال
عنوان ژورنال: Vaccine
سال: 2010
ISSN: 0264-410X
DOI: 10.1016/j.vaccine.2009.12.081