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Augmentation of Cancer Chemotherapy by Preinjection of Human Macrophage Colony‐stimulating Factor in L1210 Leukemic Cell‐inoculated Mice

Human macrophage colony‐stimulating factor (hM‐CSF) is a potent stimulator of the effector functions of monocytes/macrophages. We investigated the antitumor effects of this factor in CDF(1) male mice inoculated with L1210 cells, a mouse B‐cell leukemia line. Mice preinoculated with various numbers o...

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Autores principales: Douzono, Miyuki, Suzu, Shinya, Yamada, Muneo, Yanai, Nobuya, Kawashima, Takuji, Hatake, Kiyohiko, Motoyoshi, Kazuo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Blackwell Publishing Ltd 1995
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5920809/
https://www.ncbi.nlm.nih.gov/pubmed/7538104
http://dx.doi.org/10.1111/j.1349-7006.1995.tb03057.x
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author Douzono, Miyuki
Suzu, Shinya
Yamada, Muneo
Yanai, Nobuya
Kawashima, Takuji
Hatake, Kiyohiko
Motoyoshi, Kazuo
author_facet Douzono, Miyuki
Suzu, Shinya
Yamada, Muneo
Yanai, Nobuya
Kawashima, Takuji
Hatake, Kiyohiko
Motoyoshi, Kazuo
author_sort Douzono, Miyuki
collection PubMed
description Human macrophage colony‐stimulating factor (hM‐CSF) is a potent stimulator of the effector functions of monocytes/macrophages. We investigated the antitumor effects of this factor in CDF(1) male mice inoculated with L1210 cells, a mouse B‐cell leukemia line. Mice preinoculated with various numbers of L1210 cells on day 0 were given intravenous injections of vehicle (human serum albumin; HSA) (100μg/kg/day) or hM‐CSF (20μg/kg/day) for 3 days from day 1. In mice preinoculated with 10(2) L1210 cells but not with 10(3) or more L1210 cells, a marked increment in survival rate was observed with hM‐CSF treatment. We next examined the effect of hM‐CSF treatment combined with chemotherapy on the survival of mice that had been preinoculated with 10(5) L1210 cells. In our system, the administration of 4.9 mg/kg adriamycin (ADM) alone slightly prolonged survival of the tumorbearing mice, but all of the mice died within 20 days. When hM‐CSF was injected for 3 days before this ADM treatment, the invasion and proliferation of tumor cells in the liver and spleen were markedly inhibited and 50% of the mice were still alive at day 50. We detected inhibitory activity toward L1210 growth in serum of mice administered with hM‐CSF, and the degree of the inhibitory activity was correlated with the level of nitrite (NO(2)) in the serum. When L1210 cells were co‐cultured with peritoneal macrophages from mice intraperitoneally injected with hM‐CSF, the uptake of [(3)H]thymidine in L1210 cells was inhibited. The inhibition was abolished by the addition of N(G)‐monomethyI‐L‐arginine, an inhibitor of NO(2)− synthesis, suggesting that the reactive nitrogen oxide intermediate is involved in hM‐CSF‐induced inhibition of L1210 growth.
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spelling pubmed-59208092018-05-11 Augmentation of Cancer Chemotherapy by Preinjection of Human Macrophage Colony‐stimulating Factor in L1210 Leukemic Cell‐inoculated Mice Douzono, Miyuki Suzu, Shinya Yamada, Muneo Yanai, Nobuya Kawashima, Takuji Hatake, Kiyohiko Motoyoshi, Kazuo Jpn J Cancer Res Article Human macrophage colony‐stimulating factor (hM‐CSF) is a potent stimulator of the effector functions of monocytes/macrophages. We investigated the antitumor effects of this factor in CDF(1) male mice inoculated with L1210 cells, a mouse B‐cell leukemia line. Mice preinoculated with various numbers of L1210 cells on day 0 were given intravenous injections of vehicle (human serum albumin; HSA) (100μg/kg/day) or hM‐CSF (20μg/kg/day) for 3 days from day 1. In mice preinoculated with 10(2) L1210 cells but not with 10(3) or more L1210 cells, a marked increment in survival rate was observed with hM‐CSF treatment. We next examined the effect of hM‐CSF treatment combined with chemotherapy on the survival of mice that had been preinoculated with 10(5) L1210 cells. In our system, the administration of 4.9 mg/kg adriamycin (ADM) alone slightly prolonged survival of the tumorbearing mice, but all of the mice died within 20 days. When hM‐CSF was injected for 3 days before this ADM treatment, the invasion and proliferation of tumor cells in the liver and spleen were markedly inhibited and 50% of the mice were still alive at day 50. We detected inhibitory activity toward L1210 growth in serum of mice administered with hM‐CSF, and the degree of the inhibitory activity was correlated with the level of nitrite (NO(2)) in the serum. When L1210 cells were co‐cultured with peritoneal macrophages from mice intraperitoneally injected with hM‐CSF, the uptake of [(3)H]thymidine in L1210 cells was inhibited. The inhibition was abolished by the addition of N(G)‐monomethyI‐L‐arginine, an inhibitor of NO(2)− synthesis, suggesting that the reactive nitrogen oxide intermediate is involved in hM‐CSF‐induced inhibition of L1210 growth. Blackwell Publishing Ltd 1995-03 /pmc/articles/PMC5920809/ /pubmed/7538104 http://dx.doi.org/10.1111/j.1349-7006.1995.tb03057.x Text en
spellingShingle Article
Douzono, Miyuki
Suzu, Shinya
Yamada, Muneo
Yanai, Nobuya
Kawashima, Takuji
Hatake, Kiyohiko
Motoyoshi, Kazuo
Augmentation of Cancer Chemotherapy by Preinjection of Human Macrophage Colony‐stimulating Factor in L1210 Leukemic Cell‐inoculated Mice
title Augmentation of Cancer Chemotherapy by Preinjection of Human Macrophage Colony‐stimulating Factor in L1210 Leukemic Cell‐inoculated Mice
title_full Augmentation of Cancer Chemotherapy by Preinjection of Human Macrophage Colony‐stimulating Factor in L1210 Leukemic Cell‐inoculated Mice
title_fullStr Augmentation of Cancer Chemotherapy by Preinjection of Human Macrophage Colony‐stimulating Factor in L1210 Leukemic Cell‐inoculated Mice
title_full_unstemmed Augmentation of Cancer Chemotherapy by Preinjection of Human Macrophage Colony‐stimulating Factor in L1210 Leukemic Cell‐inoculated Mice
title_short Augmentation of Cancer Chemotherapy by Preinjection of Human Macrophage Colony‐stimulating Factor in L1210 Leukemic Cell‐inoculated Mice
title_sort augmentation of cancer chemotherapy by preinjection of human macrophage colony‐stimulating factor in l1210 leukemic cell‐inoculated mice
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5920809/
https://www.ncbi.nlm.nih.gov/pubmed/7538104
http://dx.doi.org/10.1111/j.1349-7006.1995.tb03057.x
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