Annals of Surgical Oncology

, Volume 14, Issue 4, pp 1295–1304

Low-dose Interleukin-2 Administered Pre-operatively to Patients with Gastric Cancer Activates Peripheral and Peritumoral Lymphocytes But Does Not Affect Prognosis

Authors

    • Department of General SurgeryUniversity of Milano-Bicocca, S. Gerardo Hospital
  • Fabrizio Romano
    • Department of General SurgeryUniversity of Milano-Bicocca, S. Gerardo Hospital
  • Gaia Piacentini
    • Department of General SurgeryUniversity of Milano-Bicocca, S. Gerardo Hospital
  • Marco Scotti
    • Department of General SurgeryUniversity of Milano-Bicocca, S. Gerardo Hospital
  • Ambrogio Brenna
    • Department of PathologyUniversity of Milano-Bicocca, S. Gerardo Hospital
  • Giorgio Bovo
    • Department of PathologyUniversity of Milano-Bicocca, S. Gerardo Hospital
  • Massimo Vaghi
    • Department of Clinical OncologyUniversity of Milano-Bicocca, S. Gerardo Hospital
  • Giacomo Aletti
    • Department of MathematicsUniversity of Milan
  • Roberto Caprotti
    • Department of General SurgeryUniversity of Milano-Bicocca, S. Gerardo Hospital
  • Howard Kaufman
    • Laboratory of Tumor ImmunologyDepartment of Surgery, Columbia University
  • Franco Uggeri
    • Department of General SurgeryUniversity of Milano-Bicocca, S. Gerardo Hospital
Gastrointestinal Oncology

DOI: 10.1245/s10434-006-9239-x

Cite this article as:
Cesana, G.C., Romano, F., Piacentini, G. et al. Ann Surg Oncol (2007) 14: 1295. doi:10.1245/s10434-006-9239-x

Abstract

Background

There is evidence that cancer is immunogenic under certain situations. IL-2 is described to stimulate an effective antitumor immune response in vitro and in vivo. The ability of cancer patients to undergo surgical resection is still the most important prognostic factor for many solid tumors, including gastric adenocarcinoma. The host immune system may be further compromised by surgical procedures leading to a generalized state of immunodepression in the post-operative period. The aim of this randomized case–control study is to evaluate the effects of pre-operative low-dose IL-2 treatment on patients with gastric adenocarcinoma who undergo surgery.

Methods

Sixty-eight patients with gastric adenocarcinoma were enrolled in the study and randomized in two groups: 36 patients were pre-treated with IL-2 and 32 underwent surgery without any treatment. Total peripheral WBC, neutrophils, CD3+ T, CD4+ T, CD8+ T and NK cells were obtained before and after surgery, at different times. Peritumoral infiltration was analyzed on all surgical specimens. Overall survival and relapse-free survival were studied with a median follow-up of 51 months.

Results

Low-dose IL-2 treatment resulted in an increase peritumoral lymphocytic and eosinophilic infiltrations and in a minor decrease in CD3+ T and CD4+ T cells after surgery (P < 0.05). A stepwise multivariate analysis revealed that overall survival and relapse-free survival were affected only by stage of tumor and age of patients.

Conclusions

According to our data low-doses of IL-2 administered pre-operatively to patients with gastric cancer activate peripheral and peri-tumoral lymphocytes but did not affect prognosis.

Keywords

Clinical trialGastric carcinomaInterleukin-2Treatment

Copyright information

© Society of Surgical Oncology 2007