Phototoxic liposomes coupled to an antibody that alone cannot modulate its cell-surface antigen kill selected target cells.

Molecules such as antibodies that bind to cell surfaces can be used to deliver cytotoxic drugs to selected cells. To be effective the drug must usually be taken into the cells by endocytosis. In this study a T-cell line (CCRF-CEM) was effectively killed by liposomes carrying a photosensitizer and be...

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Bibliografiske detaljer
Main Authors: Yemul, S, Berger, C, Katz, M, Estabrook, A, Edelson, R, Bayley, H
Format: Journal article
Sprog:English
Udgivet: Springer-Verlag 1990
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author Yemul, S
Berger, C
Katz, M
Estabrook, A
Edelson, R
Bayley, H
author_facet Yemul, S
Berger, C
Katz, M
Estabrook, A
Edelson, R
Bayley, H
author_sort Yemul, S
collection OXFORD
description Molecules such as antibodies that bind to cell surfaces can be used to deliver cytotoxic drugs to selected cells. To be effective the drug must usually be taken into the cells by endocytosis. In this study a T-cell line (CCRF-CEM) was effectively killed by liposomes carrying a photosensitizer and bearing the antibody OKT4 (anti-CD4). The unconjugated antibody does not induce antigenic modulation in the target cells, an indication of the absence of endocytosis, and would therefore not normally have been selected as an agent for drug delivery. It cannot, however, be concluded with certainty that the conjugates act at the cell surface and several alternative explanations of their efficacy are offered.
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spelling oxford-uuid:91fbeb06-7352-4cb7-bab4-1a03915a94172022-03-26T23:22:27ZPhototoxic liposomes coupled to an antibody that alone cannot modulate its cell-surface antigen kill selected target cells.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:91fbeb06-7352-4cb7-bab4-1a03915a9417EnglishSymplectic Elements at OxfordSpringer-Verlag1990Yemul, SBerger, CKatz, MEstabrook, AEdelson, RBayley, HMolecules such as antibodies that bind to cell surfaces can be used to deliver cytotoxic drugs to selected cells. To be effective the drug must usually be taken into the cells by endocytosis. In this study a T-cell line (CCRF-CEM) was effectively killed by liposomes carrying a photosensitizer and bearing the antibody OKT4 (anti-CD4). The unconjugated antibody does not induce antigenic modulation in the target cells, an indication of the absence of endocytosis, and would therefore not normally have been selected as an agent for drug delivery. It cannot, however, be concluded with certainty that the conjugates act at the cell surface and several alternative explanations of their efficacy are offered.
spellingShingle Yemul, S
Berger, C
Katz, M
Estabrook, A
Edelson, R
Bayley, H
Phototoxic liposomes coupled to an antibody that alone cannot modulate its cell-surface antigen kill selected target cells.
title Phototoxic liposomes coupled to an antibody that alone cannot modulate its cell-surface antigen kill selected target cells.
title_full Phototoxic liposomes coupled to an antibody that alone cannot modulate its cell-surface antigen kill selected target cells.
title_fullStr Phototoxic liposomes coupled to an antibody that alone cannot modulate its cell-surface antigen kill selected target cells.
title_full_unstemmed Phototoxic liposomes coupled to an antibody that alone cannot modulate its cell-surface antigen kill selected target cells.
title_short Phototoxic liposomes coupled to an antibody that alone cannot modulate its cell-surface antigen kill selected target cells.
title_sort phototoxic liposomes coupled to an antibody that alone cannot modulate its cell surface antigen kill selected target cells
work_keys_str_mv AT yemuls phototoxicliposomescoupledtoanantibodythatalonecannotmodulateitscellsurfaceantigenkillselectedtargetcells
AT bergerc phototoxicliposomescoupledtoanantibodythatalonecannotmodulateitscellsurfaceantigenkillselectedtargetcells
AT katzm phototoxicliposomescoupledtoanantibodythatalonecannotmodulateitscellsurfaceantigenkillselectedtargetcells
AT estabrooka phototoxicliposomescoupledtoanantibodythatalonecannotmodulateitscellsurfaceantigenkillselectedtargetcells
AT edelsonr phototoxicliposomescoupledtoanantibodythatalonecannotmodulateitscellsurfaceantigenkillselectedtargetcells
AT bayleyh phototoxicliposomescoupledtoanantibodythatalonecannotmodulateitscellsurfaceantigenkillselectedtargetcells