Journal article
Interleukin 15 protects against toxicity and potentiates antitumor activity of 5-fluorouracil alone and in combination with leucovorin in rats bearing colorectal cancer
Cancer research (Chicago, Ill.), Vol.58(8), pp.1695-1699
04/15/1998
PMID: 9563485
Abstract
5-Fluorouracil (FUra) modulated by leucovorin (LV) is active in the treatment of colorectal cancer. Diarrhea and stomatitis are the most common dose-limiting toxicities. We have developed a model system in rats bearing a transplantable colon carcinoma sensitive to FUra therapy with dose-limiting toxicity profiles similar to what is observed in patients treated with either daily or weekly schedules of FUra plus LV. Interleukin 15 (IL-15), a cytokine that shares many biological activities with IL-2, was used at different doses (25, 100, and 400 microg/kg) and schedules (three doses before a single dose of FUra, FUra/LV daily x 5, or before each week of FUra/LV weekly x 4, or three doses before a single dose of FUra or FUra/LV daily x 5, then twice daily x 5 for a total of 11 doses) to evaluate its role in the modulation of the therapeutic selectivity of FUra alone and modulated by LV. IL-15 induced a dramatic decrease in chemotherapy-induced gastrointestinal toxicities, significant potentiation of antitumor activity, and an increased therapeutic index of FUra administered on single dose, daily x 5 and weekly x 4 schedules. In contrast, IL-2 (400 microg/kg) significantly potentiated the toxicity of FUra administered as a single i.v. push, with minimal potentiation of the antitumor activity. Taken together, the results clearly demonstrated the ability of IL-15, but not IL-2, to provide significant improvement of the therapeutic index of FUra alone and in combination with LV. The clinical relevance of the results obtained in this model system needs to be confirmed.
Details
- Title: Subtitle
- Interleukin 15 protects against toxicity and potentiates antitumor activity of 5-fluorouracil alone and in combination with leucovorin in rats bearing colorectal cancer
- Creators
- S Cao - Roswell Park Cancer InstituteA B TrouttY M Rustum
- Resource Type
- Journal article
- Publication Details
- Cancer research (Chicago, Ill.), Vol.58(8), pp.1695-1699
- PMID
- 9563485
- ISSN
- 0008-5472
- eISSN
- 1538-7445
- Language
- English
- Date published
- 04/15/1998
- Academic Unit
- Hematology, Oncology, and Blood & Marrow Transplantation; Internal Medicine
- Record Identifier
- 9984359922502771
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