Effects of systemic recombinant interleukin-2 on natural killer and lymphokine activated killer activity of human tumor infiltrating lymphocytes

Timothy M. Anderson, Yukihiro Ibayashi, Yutaka Tokuda, Steven D Colquhoun, E. Carmack Holmes, Sidney H. Golub

Research output: Contribution to journalArticle

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Abstract

The purpose of these studies was to compare local and systemic human lymphokine activated killer (LAK) and natural killer (NK) cytotoxicity and to determine its modulation by the systemic administration of recombinant interleukin-2 (rIL-2). After preoperative systemic rIL-2, we extracted tumor infiltrating lymphocytes (TIL) and peripheral blood lymphocytes (PBL) from patients with pulmonary tumors and compared pre-and posttreatment spontaneous NK activity and their response to in vitro rIL-2. Spontaneous TIL NK activity was increased in patients receiving 15,000 units/kg rIL-2 preoperatively (6.6 lytic units (LU)] compared to those receiving 1,000-10,000 units/kg (0.8 LU) or no rIL-2 (1.4 LU). After 3 days incubation with 1,000 units/ml rIL-2, TIL NK cytotoxic activity was increased in patients receiving 15,000 units/kg rlL-2 (65.4 LU) compared to those receiving 1,000-10,000 units/kg (6.0 LU) or no treatment (24.9 LU). Spontaneous TIL LAK activity was low overall (1.1 LU) with the exception of two patients receiving 15,000 units/kg who had 3.1 and 3.7 LU spontaneously. TIL LAK precursor activity was only slightly increased in patients receiving 1,000-10,000 units/kg rIL-2, whereas those receiving 15,000 units/kg rIL-2 had an average of 22.8 LU. Systemic rIL-2 also increased spontaneous PBL NK activity. Reincubation of PBL obtained at time of surgery or 3 days after discontinuing systemic rIL-2 resulted in significant increases in cytotoxic response to in vitro rIL-2 compared to pre-IL-2 in vitro responses. Systemic rIL-2 had no effect on spontaneous PBL LAK activity. Thus, the immunosuppressive tumor environment can be partially reversed with 15,000 units/ kg systemic rIL-2. Higher doses of systemic rIL-2 also increased spontaneous PBL NK activity at time of surgery and 3 days after discontinuing rIL-2. Both TIL and PBL inducible cytotoxicity were boosted in vitro following higher doses of systemic rIL-2.

Original languageEnglish (US)
Pages (from-to)1180-1183
Number of pages4
JournalCancer Research
Volume48
Issue number5
StatePublished - Jan 1 1988
Externally publishedYes

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Tumor-Infiltrating Lymphocytes
Lymphokines
Human Activities
Interleukin-2
Lymphocytes

ASJC Scopus subject areas

  • Oncology
  • Cancer Research

Cite this

Effects of systemic recombinant interleukin-2 on natural killer and lymphokine activated killer activity of human tumor infiltrating lymphocytes. / Anderson, Timothy M.; Ibayashi, Yukihiro; Tokuda, Yutaka; Colquhoun, Steven D; Holmes, E. Carmack; Golub, Sidney H.

In: Cancer Research, Vol. 48, No. 5, 01.01.1988, p. 1180-1183.

Research output: Contribution to journalArticle

Anderson, Timothy M. ; Ibayashi, Yukihiro ; Tokuda, Yutaka ; Colquhoun, Steven D ; Holmes, E. Carmack ; Golub, Sidney H. / Effects of systemic recombinant interleukin-2 on natural killer and lymphokine activated killer activity of human tumor infiltrating lymphocytes. In: Cancer Research. 1988 ; Vol. 48, No. 5. pp. 1180-1183.
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