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Journal of Gastrointestinal Surgery

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01-07-2013 | Original Article

Changes of T Cells and Cytokines TGF-β1 and IL-10 in Mice During Liver Metastasis of Colon Carcinoma: Implications for Liver Anti-tumor Immunity

Authors: Xiaoming Huang, Yifeng Zou, Lei Lian, Xiaojian Wu, Xiaosheng He, Xiaowen He, Xianrui Wu, Yan Huang, Ping Lan

Published in: Journal of Gastrointestinal Surgery | Issue 7/2013

Abstract

Background

The local and systemic regulation of the immune system may play important roles in the process of liver metastasis of colorectal carcinoma. The aim of this study was to establish a reproducible experimental liver metastasis model, to identify changes in T cells and cytokines TGF-β1 and IL-10, and to explore a possible mechanism of liver metastasis of colon carcinoma.

Methods

We used a colon carcinoma liver metastasis model, in which different numbers of CT-26 murine colon carcinoma cells (1 × 10³, 5 × 10³, 1 × 10⁴, 5 × 10⁴, and 1 × 10⁵) were injected into the spleen. The liver and spleen tissues were examined for T cell markers using flow cytometry. Liver tissues were analyzed for IL-10 and transforming growth factor beta 1 (TGF-β1) expression using immunohistochemistry.

Results

Spleen injection of colon carcinoma cells is a reproducible animal model for liver metastases, which resulted in quantity-dependent metastatic growth. We provided a snapshot of the hepatic immune microenvironment in the mouse liver metastasis model. Injection of A large number of tumor cells (5 × 10⁴ and 1 × 10⁵) decreased anti-tumor cell counts, such as CD4⁺ and CD8⁺ T cells, and increased immune-suppressive cell counts (CD4⁺CD25⁺ T_reg cells). In addition, the expression levels of immunosuppressive cytokines IL-10 and TGF-β1 were also increased with the number of tumor cells.

Conclusions

Changes in the systemic and local immunological environment contribute to immunological escape mechanisms during liver metastasis of colon carcinoma, and therapies aiming at immune microenvironment may prove a useful strategy in the treatment of metastatic disease in the future.

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Title: Changes of T Cells and Cytokines TGF-β1 and IL-10 in Mice During Liver Metastasis of Colon Carcinoma: Implications for Liver Anti-tumor Immunity
Authors: Xiaoming Huang
Yifeng Zou
Lei Lian
Xiaojian Wu
Xiaosheng He
Xiaowen He
Xianrui Wu
Yan Huang
Ping Lan
Publication date: 01-07-2013
Publisher: Springer-Verlag
Published in: Journal of Gastrointestinal Surgery / Issue 7/2013
Print ISSN: 1091-255X
Electronic ISSN: 1873-4626
DOI: https://doi.org/10.1007/s11605-013-2194-5

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Changes of T Cells and Cytokines TGF-β1 and IL-10 in Mice During Liver Metastasis of Colon Carcinoma: Implications for Liver Anti-tumor Immunity

Abstract

Background

Methods

Results

Conclusions

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Background

Methods

Results

Conclusions

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