Immune enhancement by tumor-therapeutic drugs and endotoxins

D. Gaál, A. Nowotny

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Five tumor chemotherapeutic drugs: adriamycin (ADM), formyl leurosine (FLE), 1,2-5,6-dianhydrogalactitol (DAD), 5-fluorouracyl (5-FU), and vincristine (VCR) were tested for their effect on the immune response to sheep red blood cells (SRBC) in mice in the Jerne plaque assay. It was found that four of these can act as both immunostimulators and immunosuppressants, depending upon the time elapsing between their application and immunization. VCR was found to be slightly immunopotentiating. Proper combination and timing of injections of DAD and FLE enhanced the immune response over 23fold. Administration of the same drugs in reversed sequence led to an almost complete immune suppression. Repeated injections of some drugs alone or in combination also led to marked or complete immunosuppression. The combined use of drugs and endotoxic lipopolysaccharide (LPS) or its nontoxic, polysaccharide-rich hydrolytic breakdown product (PS) could compensate for some of the immunosuppressive effects. The most striking adjuvant effect was elicited by the combined use of VCR and LPS or VCR and the nontoxic PS preparation.

Original languageEnglish
Pages (from-to)9-15
Number of pages7
JournalCancer Immunology Immunotherapy
Volume6
Issue number1
DOIs
Publication statusPublished - 1979

Fingerprint

Vincristine
Endotoxins
Dianhydrogalactitol
Immunosuppressive Agents
Pharmaceutical Preparations
Lipopolysaccharides
Neoplasms
Injections
Therapeutics
Doxorubicin
Immunosuppression
Polysaccharides
Immunization
Sheep
Erythrocytes
formyl-leurosine

ASJC Scopus subject areas

  • Cancer Research
  • Immunology
  • Oncology

Cite this

Immune enhancement by tumor-therapeutic drugs and endotoxins. / Gaál, D.; Nowotny, A.

In: Cancer Immunology Immunotherapy, Vol. 6, No. 1, 1979, p. 9-15.

Research output: Contribution to journalArticle

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