1991
DOI: 10.1159/000216985
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Steigerung der Zytotoxizität spezifischer monoklonalen Antikörper gegen humane Karzinomzellen durch GM-CSF in vitro

Abstract: In einem 4-h-Cr51-Release-Assay wurde die antikörpervermittelte Zytotoxizität (ADCC) humaner peripherer, mononukleärer Blutzel- len (je Ansatz 106 Zellen) mit und ohne Zusatz von «Granulocyte- Macrophage Colony Stimulating Factor» (= GM-CSF, je Ansatz 0,1 μg) gegenüber den humanen Karzinomzellinien (104 Zellen pro Ansatz) PaTu II (Pankreas), LoVo (Kolon) und M21 (Melanom) untersucht. Als spezifische monoklonale Antikörper wurden BW 494/32 IgGl und 2a sowie BW 495/33 (gegen Kolon- und Pank… Show more

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“…Cytotoxicity was determined against K562 and pancreatic cancer (PMH) target cells in a 51 Cr-release assay and is expressed as lytic units (LU). LU effector cells/10 7 cells that lyse 33% of targets PMH or K562 (n=5000) the ADCC (antibody-dependent cytotoxicity) with mAb BW 494/32 from 36% to 78% (specific lysis) when GM-CSF was added to the effector cells [71], but this finding has not yet been transferred into a clinical study. New developments are humanized mAbs to eliminate HAMA responses, bi-specific and co-stimulatory antibodies and immunoconjugates.…”
Section: Monoclonal Antibodiesmentioning
confidence: 99%
“…Cytotoxicity was determined against K562 and pancreatic cancer (PMH) target cells in a 51 Cr-release assay and is expressed as lytic units (LU). LU effector cells/10 7 cells that lyse 33% of targets PMH or K562 (n=5000) the ADCC (antibody-dependent cytotoxicity) with mAb BW 494/32 from 36% to 78% (specific lysis) when GM-CSF was added to the effector cells [71], but this finding has not yet been transferred into a clinical study. New developments are humanized mAbs to eliminate HAMA responses, bi-specific and co-stimulatory antibodies and immunoconjugates.…”
Section: Monoclonal Antibodiesmentioning
confidence: 99%