Ultrastructural evidence of the mechanisms responsible for interleukin-4-activated rejection of a spontaneous murine adenocarcinoma

A. Modesti, L. Masuelli, A. Modica, G. D'Orazi, S. Scarpa, M. C. Bosco, G. Forni

Research output: Contribution to journalArticle

Abstract

The ultrastructural pattern of the anti-tumor response elicited by interleukin-4 (IL-4) was investigated by using a spontaneous mammary adenocarcinoma (TS/A) unable to elicit protective immunity in syngeneic BALB/c mice as suggested by a variety of preimmunization-challenge experiments. A subcutaenous lethal challenge of TS/A tumor cells was inhibited in a significant number of BALB/c mice receiving recombinant murine IL-4 injected daily for 10 days around the tumor-draining lymph node. Tumor rejection was mainly the result of direct membrane and cytoplasmic damage to tumor cells by eosinophils, neutrophils and macrophages that deeply penetrated the proliferating tumor mass. Lymphocytes and fibroblasts participated in the reaction by interacting with tumor cells, granulocytes and each other. The most frequent cell interactions in the peri- and intra-tumoral areas and in the tumor-draining lymph nodes are illustrated. The efficiency with which the IL-4-activated reaction leads to tumor inhibition and induction of a T-lymphocyte-dependent tumor-specific immune memory appears to depend on interactions between distinct leukocytes.

Original languageEnglish
Pages (from-to)988-993
Number of pages6
JournalInternational Journal of Cancer
Volume53
Issue number6
Publication statusPublished - 1993

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Interleukin-4
Adenocarcinoma
Neoplasms
Lymph Nodes
Granulocytes
Eosinophils
Cell Communication
Immunity
Breast
Neutrophils
Leukocytes
Fibroblasts
Macrophages
Cell Membrane
Lymphocytes
T-Lymphocytes

ASJC Scopus subject areas

  • Cancer Research
  • Oncology

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Ultrastructural evidence of the mechanisms responsible for interleukin-4-activated rejection of a spontaneous murine adenocarcinoma. / Modesti, A.; Masuelli, L.; Modica, A.; D'Orazi, G.; Scarpa, S.; Bosco, M. C.; Forni, G.

In: International Journal of Cancer, Vol. 53, No. 6, 1993, p. 988-993.

Research output: Contribution to journalArticle

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AU - Scarpa, S.

AU - Bosco, M. C.

AU - Forni, G.

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