C - Chemistry – Metallurgy – 07 – K
Patent
C - Chemistry, Metallurgy
07
K
C07K 16/30 (2006.01) A61K 39/395 (2006.01) A61K 49/00 (2006.01) A61K 51/10 (2006.01) C07K 16/28 (2006.01) G01N 33/574 (2006.01) A61K 38/00 (2006.01)
Patent
CA 2149529
An analogue peptide comprises the variable regions of the light or heavy chains of an antibody of a first species selectively binding to a tumor antigen, such as a carcinoma antigen, has 1 to 45 amino acids of the framework regions per chain substituted with amino acids such as those present in equivalent positions in antibodies of a species other than the first species, or fragments thereof comprising 1 to 3 variable region CDRs per chain and optionally flanking regions thereof of 1 to 10 or more amino acids, alone or with an N-terminal fragment of 1 to 10 or more amino acids, combinations or mixtures thereof. The polypeptide may also comprise an effector agent and/or be glycosylated, and is presented as a composition with a carrier. The analogue peptides are used in diagnostic kits for neoplasms such as carcinomas and methods for in vivo imaging and treating a primary or metastasized neoplasm such as a carcinoma, and in vitro diagnosing a neoplasm, ex vivo purging neoplastic cells from a biological fluid. RNAs and DNAs encode the analogue peptide, and a hybrid vector carrying the nucleotides and transfected cells express the peptides and a method produces the analogue peptide. An anti-idiotype polypeptide comprises polyclonal antibodies raised against an antineoplastic antibody or the analogue peptide of this invention, monoclonal antibodies thereof, Fab, Fab', (Fab')~, CDR, variable region, or analogues or fragments thereof, combinations thereof with an oligopeptide comprising a TRP tri- mer, tandem repeats thereof, or combination or mixtures thereof. An anti- idiotype hybrid polypeptide with an effector agent and the anti-idiotype polypeptide, an anti-neoplastic vaccine, an anti- neoplastic vaccination kit, a method of vaccinating against neoplasms such as carcinomas and a method of lowering the serum concentration of a circulating antibody or poly- peptide are provided.
Ceriani Roberto L.
Do Couto Fernado J. R.
Padlan Eduardo A.
Peterson Jerry A.
Cancer Research Fund Of Contra Costa
Cancer Research Institute Of Contra Costa
Deeth Williams Wall Llp
Padlan Eduardo A.
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