Tumour-derived and host-derived nitric oxide differentially regulate breast carcinoma metastasis to the lungs

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Serval ID
serval:BIB_054C457CBE16
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Tumour-derived and host-derived nitric oxide differentially regulate breast carcinoma metastasis to the lungs
Journal
Carcinogenesis
Author(s)
Gauthier  N., Lohm  S., Touzery  C., Chantome  A., Perette  B., Reveneau  S., Brunotte  F., Juillerat-Jeanneret  L., Jeannin  J. F.
ISSN
0143-3334 (Print)
Publication state
Published
Issued date
2004
Volume
25
Number
9
Pages
1559-1565
Notes
PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't
Abstract
To study the role of nitric oxide (NO) in lung metastasis of breast carcinoma, we isolated two cell clones (H and J) from the parental EMT-6 murine breast carcinoma cell line, based on their differential NO production. In vitro, EMT-6 J cells, but not EMT-6H cells, constitutively expressed inducible NO synthase (NOS II) and secreted high levels of NO. IL-1beta increased NO production in both clones, and TNF-alpha had a synergistic effect on IL-1beta-induced NO production, but NO production by EMT-6 J cells was always higher than by EMT-6H cells. Proliferation, survival and adhesion to lung-derived endothelial cells of both clones were similar and were not affected by NO. In vivo, both clones similarly located in the lungs of syngeneic mice 48 h after injection. However, EMT-6H cells were significantly more tumorigenic than EMT-6 J cells as assessed at later time points. Injection of EMT-6 J cells and simultaneous treatment of mice with aminoguanidine (AG), a NOS II inhibitor, significantly increased tumour formation. Injection of EMT-6H and EMT-6 J cells into NOS II-deficient mice resulted in a significant survival increase as compared with wild-type animals. Simultaneous administration of AG increased the death rate of NOS II-deficient mice injected with EMT-6 J cells. These results demonstrate that: (i) NO does not influence the early stages of tumour metastasis to the lungs and (ii) NOS II expression in tumour cells reduces, while NOS II expression in host cells enhances, tumour nodule development. In conclusion, the cellular origin and the local NO production are critical in the metastatic process
Keywords
Animals/Cell Adhesion/Cell Division/Cell Survival/Endothelial Cells/metabolism/Pathology/Enzyme Inhibitors/pharmacology/Female/Guanidines/Indium Radioisotopes/Interleukin-1/Lung Neoplasms/enzymology/secondary/Mammary Neoplasms,Experimental/Mice/Mice,Inbred BALB C/Mice,Inbred C57BL/Mice,Knockout/Nitric Oxide/physiology/Nitric Oxide Synthase/antagonists & inhibitors/Nitric Oxide Synthase Type II/Survival Rate/Tumor Cells,Cultured
Pubmed
Web of science
Open Access
Yes
Create date
29/01/2008 19:36
Last modification date
25/09/2019 7:08
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