Combination immunotoxin treatment and chemotherapy in SCID mice with advanced, disseminated Daudi lymphoma

Maria Ana Ghetie, Erika M. Podar, Brian E. Gordon, Panayotis Pantazis, Jonathan W. Uhr, Ellen S. Vitetta

Research output: Contribution to journalArticlepeer-review

24 Scopus citations

Abstract

We describe the use of an immunotoxin (IT) cocktail (anti-CD22- and anti-CD19-ricin A chain) and any 1 of 3 chemotherapeutic drugs (doxorubicin, cytoxan or camptothecin) to treat advanced disseminated Daudi lymphoma in SCID mice (SCID/Daudi). In a previous report, we demonstrated that this regimen was curative when given the day following tumor cell inoculation. Here, we show that combination therapy in mice with advanced tumor significantly increased their survival, although it was not curative. Importantly, the outcome of therapy was dependent upon the temporal order in which IT and chemotherapy were administered. Thus, the best anti-tumor effect was achieved when an IT cocktail was given before or at the same time as chemotherapy. When the IT was given after chemotherapy, there was no additional therapeutic benefit. Our results confirm the rationale of using combination therapy in the treatment of advanced B-cell neoplasia and suggest that ITs should be administered prior to or during chemotherapy.

Original languageEnglish (US)
Pages (from-to)93-96
Number of pages4
JournalInternational Journal of Cancer
Volume68
Issue number1
DOIs
StatePublished - 1996

ASJC Scopus subject areas

  • Oncology
  • Cancer Research

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