Drug – bio-affecting and body treating compositions – Immunoglobulin – antiserum – antibody – or antibody fragment,... – Monoclonal antibody or fragment thereof
Patent
1994-12-27
1997-05-06
Adams, Donald E.
Drug, bio-affecting and body treating compositions
Immunoglobulin, antiserum, antibody, or antibody fragment,...
Monoclonal antibody or fragment thereof
4241301, 5303871, 5303881, 5303885, 604171, A61K 39395, C07K 1616, A61M 520
Patent
active
056268440
ABSTRACT:
Monoclonal antibodies against the A chain of ricin have been found to be ective in protecting mammals from morbidity arising from exposure to ricin toxin. The neutralizing action of the antibodies does not appear to be mediated by complement or by immunoprecipitation. The antibodies of the invention are characterized as of isotype IgG1 having the binding characteristics which include: a) binding specifically to the neutralizing epitope of the ricin A chain and b) providing in vitro protection of at least 95% of EL-4 cells from 100 .eta.g/mL ricin challenge when said antibody is present in the tissue culture at a level of at least 1000 .eta.g/mL.
REFERENCES:
Houston [J. Toxicol Clin. Toxicol. 19(4):385-389 (1982)].
Waldmann [Science 252:1657-1662 (1991)].
Harris et al. [TIBTECH 11:42-44 (1993)].
Youle et al. [JBC 262(10):4676-4682 (1987)].
Foxwell et al. [Toxicology 34(1):79-88 (1985)].
Lemley Paul V.
Wright D. Craig
Adams Donald E.
Moran John Francis
The United States of America as represented by the Secretary of
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