Cancer Immunology, Immunotherapy

, Volume 19, Issue 2, pp 73–78

Antitumor effect induced by a hot water extract of Chlorella vulgaris (CE): Resistance to meth-A tumor growth mediated by CE-induced polymorphonuclear leukocytes

  • Fumiko Konishi
  • Kuniaki Tanaka
  • Kunisuke Himeno
  • Kazuto Taniguchi
  • Kikuo Nomoto
Original Articles

DOI: 10.1007/BF00199712

Cite this article as:
Konishi, F., Tanaka, K., Himeno, K. et al. Cancer Immunol Immunother (1985) 19: 73. doi:10.1007/BF00199712

Summary

When a hot water extract of Chlorella vulgaris (CE) was injected into the peritoneal cavity of BALB/c mice inoculated with syngeneic Meth-A tumor cells, the survival times were strikingly prolonged. Furthermore, peritoneal exudate cells (PEC) rich in polymorphonuclear cells (PMN) obtained from normal mice 24 h after CE injection exhibited an antitumor effect in a Winn-type assay using normal recipients. Such an activity of PEC remained almost intact after T cell or macrophage depletion. However, such PEC did not express an antitumor effect in a Winn-type assay using irradiated recipients. It was suggested that CE-induced PEC, presumably PMN, expressed an antitumor effect in cooperation with a host- or recipient-derived element(s) sensitive to irradiation. The anti-tumor mechanism of CE may be different from that of OK-432, one of the biological response modifiers.

Copyright information

© Springer-Verlag 1985

Authors and Affiliations

  • Fumiko Konishi
    • 1
  • Kuniaki Tanaka
    • 1
  • Kunisuke Himeno
    • 1
  • Kazuto Taniguchi
    • 1
  • Kikuo Nomoto
    • 1
  1. 1.Department of Immunology, Medical Institute of BioregulationKyushu UniversityFukuokaJapan