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. 1985;19(2):73-8.
doi: 10.1007/BF00199712.

Antitumor Effect Induced by a Hot Water Extract of Chlorella Vulgaris (CE): Resistance to Meth-A Tumor Growth Mediated by CE-induced Polymorphonuclear Leukocytes

Antitumor Effect Induced by a Hot Water Extract of Chlorella Vulgaris (CE): Resistance to Meth-A Tumor Growth Mediated by CE-induced Polymorphonuclear Leukocytes

F Konishi et al. Cancer Immunol Immunother. .

Abstract

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 antitumor mechanism of CE may be different from that of OK-432, one of the biological response modifiers.

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