Selective killing of T lymphocytes by phototoxic liposomes

S. Yemul, C. Berger, A. Estabrook, S. Suarez, R. Edelson, H. Bayley

Research output: Contribution to journalArticlepeer-review

38 Scopus citations

Abstract

Two-fold specificity in drug delivery obtained through (i) the localized activation of drugs by physical means and (ii) the attachment of drugs to proteins that bind to target cells might be used for highly selective cancer chemotherapy or for immunosuppression. Toward this end, a monoclonal antibody against an antigen on the surface of T lymphocytes was covalently attached to liposomes containing a phototoxic drug, pyrene, bound to the lipid bilayer. When unfractionated peripheral blood lymphocytes, or B- and T-cell lines, were irradiated after treatment with these liposomes, T cells were killed while B cells were spared, demonstrated the validity of the approach in a simple in vitro assay.

Original languageEnglish
Pages (from-to)246-250
Number of pages5
JournalProceedings of the National Academy of Sciences of the United States of America
Volume84
Issue number1
DOIs
StatePublished - 1987
Externally publishedYes

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