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Interleukin-10 expression is correlated with growth fraction in human non-small cell lung cancer xenografts

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We examined IL-10 and IL-10 receptor (IL-10R) gene expression in 44 xenografts of human non-small cell lung cancer (NSCLC) by reverse transcription-polymerase chain reaction (RT-PCR) assay with human-specific primers. IL-10 gene expression was detected in 10 (22.7%) of 44 xenografts (0/11 adenocarcinomas, 6/19 squamous cell carcinomas, 4/14 large cell carcinomas) and IL-10R expression in 8 (18.2%) xenografts. The IL-10-positive xenografts immunohistochemically showed significantly increased growth fractions of neoplastic cells (471.0±112.2) relative to IL-10-negative xenografts (208.4±96.3) (p=0.009, Mann-Whitney U test), and showed significantly increased vascular number (p=0.008, Mann-Whitney U test). These results suggested that IL-10 expression is correlated with growth features in human NSCLC.
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Document Type: Research Article

Affiliations: Department of Surgery, School of Medicine, Keio University, Tokyo 160-8582, Japan

Publication date: June 1, 2001

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  • The International Journal of Oncology provides an international forum for the publication of the latest, cutting-edge research in the broad area of oncology and cancer treatment. The journal accepts original high quality works and reviews on all aspects of oncology research including carcinogenesis, metastasis, epidemiology, chemotherapy and viral oncology. Through fair and efficient peer review, the journal is dedicated to publishing top tier research in the field, offering authors rapid publication as well as high standards of copy-editing and production. The International Journal of Oncology is published on a monthly basis in both print and early online.
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