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Titolo:
COMPLEMENT ACTIVATION BY CREMOPHOR EL AS A POSSIBLE CONTRIBUTOR TO HYPERSENSITIVITY TO PACLITAXEL - AN IN-VITRO STUDY
Autore:
SZEBENI J; MUGGIA FM; ALVING CR;
Indirizzi:
WALTER REED ARMY MED CTR,WALTER REED ARMY INST RES,DEPT MEMBRANE BIOCHEM WASHINGTON DC 20307 UNIV SO CALIF,KENNETH NORRIS JR COMPREHENS CANC CTR LOS ANGELES CA 00000
Titolo Testata:
Journal of the National Cancer Institute
fascicolo: 4, volume: 90, anno: 1998,
pagine: 300 - 306
Fonte:
ISI
Lingua:
ENG
Soggetto:
ANAPHYLACTOID REACTIONS; RECEPTOR TYPE-1; TAXOL; INFUSION; CYCLOSPORINE; HEMODIALYSIS; INFLAMMATION; CHOLESTEROL; ADRIAMYCIN; LIPOSOMES;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
43
Recensione:
Indirizzi per estratti:
Citazione:
J. Szebeni et al., "COMPLEMENT ACTIVATION BY CREMOPHOR EL AS A POSSIBLE CONTRIBUTOR TO HYPERSENSITIVITY TO PACLITAXEL - AN IN-VITRO STUDY", Journal of the National Cancer Institute, 90(4), 1998, pp. 300-306

Abstract

Background: Cancer patients treated with the anticancer drug, paclitaxel (Taxol) often experience mild to severe hypersensitivity reactions, It is not known how these reactions are induced and whether the inducer is paclitaxel or its vehicle (i.e., Cremophor EL in 50% ethanol), Molecules present in Cremophor EL are similar in structure to certain nonionic block copolymers that activate complement proteins (i.e., proteins involved in various immune processes), To explore the role of complement in the observed hypersensitivity reactions, we studied the effects of paclitaxel and Cremophor EL plus ethanol on human complement in vitro. Methods: Serum specimens from healthy individuals and cancerpatients were incubated with paclitaxel or with relevant control compounds (Cremophor EL with ethanol, ethanol only, docetaxel, and cyclosporine), and markers of complement activation (SC5b-9 and Bb) were measured by enzyme-linked immunosorbent assay, Similar incubations were performed in the presence of inhibitors of complement activation (i.e., EGTA/Mg2+ and soluble complement receptor type 1 [sCR1]), Results: Paclitaxel in Cremophor EL plus ethanol caused increased formation of SC5b-9 in serum specimens from 10 of 10 healthy control subjects and fromfive of 10 cancer patients, Experiments with one or more individual sera indicated the above effect was due to Cremophor EL plus ethanol, that increased formation of Bb also occurred, that the drug-induced rise in SC5b-9 was inhibited by sCR1, and that EGTA/Mg2+ partially inhibited SC5b-9 formation and stimulated Bb formation, Implication: The role of complement activation in hypersensitivity reactions associated with administration of paclitaxel in Cremophor EL plus ethanol should bestudied in vivo.

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Documento generato il 23/01/21 alle ore 09:10:35