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Suppression of Mediastinal Metastasis by Uracil-Tegafur or cis-Diamminedichloroplatinum(II) Using a Lymphogenous Metastatic Model in a Human Lung Cancer Cell Line
Purpose and Experimental Design : The extent of lymphatic metastasis is the most important factor in the prognosis for non-small cell lung cancer (NSCLC). Therefore, suppression of lymphatic metastasis provides an improvement in survival time in lung cancer patients. We established a new patient-lik...
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Published in: | Clinical cancer research 2001-12, Vol.7 (12), p.4202-4208 |
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Main Authors: | , , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Online Access: | Get full text |
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Summary: | Purpose and Experimental Design : The extent of lymphatic metastasis is the most important factor in the prognosis for non-small cell lung cancer (NSCLC).
Therefore, suppression of lymphatic metastasis provides an improvement in survival time in lung cancer patients. We established
a new patient-like model for lung cancer metastasis by orthotopic implantation in severe combined immunodeficiency (SCID)
mice and demonstrated the lymphogenous spread histologically using human NSCLC cell lines. The cardinal features of this model
are a simple procedure and a similarity to the metastatic form of human lung cancer. The purpose of this study is to assess
the inhibitory action of uracil-tegafur (UFT) and cis -diamminedichloroplatinum(II) (CDDP) on lymphatic metastasis and life span prolongation in our lymphogenous metastatic model
system using SCID mice.
Results : The inhibition ratios of mediastinal lymph node metastasis were 86.2, 94, and 92.1% for 12 mg/kg body UFT, 17 mg/kg body
UFT, and 10 mg/kg body CDDP, respectively. The administration of anticancer drugs prolonged the life span by 4.6 days (17
mg/kg body UFT) and 8 days (10 mg/kg body CDDP) in MST.
Conclusion : We demonstrated that UFT alone and CDDP alone suppressed mediastinal metastasis and prolonged the life span in our lymphogenous
metastatic model. Regardless of the administration route and characteristics of anticancer drugs, cytostatic or cytotoxic,
our model is capable of evaluating the inhibitory effect of drugs on lymphatic metastasis. This model should make an important
contribution to our understanding of the mechanism and selection of drugs for antilymphatic metastasis in lung cancer. |
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ISSN: | 1078-0432 1557-3265 |