PMID: 7547081Jan 1, 1994Paper

Antitumor effects of human recombinant macrophage colony-stimulating factor against rat brain tumors

Biotherapy
T MatsuokaS Monden

Abstract

The tumoricidal effects of M-CSF were examined using two subcutaneously-transplanted rat brain tumor cell lines, 9L and T9 gliomas. In rats treated with high-dose M-CSF (16 million U/kg administered for 4 days a week for 3 weeks), 9L glioma growth was inhibited by 81.9% following subcutaneous (s.c.) injection and by 70.5% after intraperitoneal (i.p.) injection and T9 glioma growth was inhibited by 69.2% after i.p. injection. After short-term treatment with high-dose M-CSF (32 million U/kg administered s.c. for 6 consecutive days, 9L glioma growth was inhibited by 82.1%. All these inhibitory effects differed significantly compared with the respective untreated control groups. However, treatment with low-dose M-CSF (1.6 million U/kg administered s.c. for 4 days a week for 3 weeks) showed no significant effects against 9L and T9 glioma growth compared with the untreated controls. No significant effects of M-CSF against cell proliferation, measured as PCNA expression, were observed in any group. Significant hematopoietic effects on the leukocyte counts were observed only in the groups treated with high dose M-CSF. These results suggest that M-CSF at a high dose which produces hematopoietic effects on peripheral leukocytes inhibits ...Continue Reading

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Citations

Jan 9, 2019·Frontiers in Cellular Neuroscience·Vincent Pons, Serge Rivest

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