C - Chemistry – Metallurgy – 12 – N
Patent
C - Chemistry, Metallurgy
12
N
167/40, 195/1.10
C12N 5/02 (2006.01) C07K 16/30 (2006.01) C12N 15/00 (2006.01) C12P 21/00 (2006.01) G01N 33/577 (2006.01)
Patent
CA 1208576
- 31 - ABSTRACT Monoclonal antibodies specific to CEA A process for producing monoclonal antibodies specific to carcinoembryonic antigen (CEA), comprising immunizing a mammal with a first CEA to produce cells capable of producing antibodies, collecting the cells from the mammal, fusing the collected cells with the cells of a line of a myeloma of another mammal, selecting the thus-obtained hybridoma cells on the basis of their capacity to produce antibodies reactive with said first CEA, subjecting the thus-selected hybridoma cells to cloning, selecting the thus-obtained monoclones on the basis of the reactivities of monoclonal antibodies produced by them with at least one antigen selected from CEAs other than said first CEA and CEA-related antigens of normal adult human origin, culturing the thus-obtained monoclones and recovering the desired monoclonal antibodies from the spent culture. The selection may preferably be effected by radioimmunoassay using a marker antigen labelled with a radioactive substance. Monoclonal anti-CEA antibodies thus-produced have specific reactivity with the antigenic determinants of CEA molecules and thus may with advantage be used for various clinical applications and fundamental medical studies such as, for example, for determination of the concentration of CEA and CEA-related antigens.
431254
Kuroki Masahide
Matsuoka Yuji
Kirby Eades Gale Baker
Kuroki Masahide
Matsuoka Yuji
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