Published in:
01-03-2009 | Original Paper
Tumor-infiltrating macrophages can predict favorable prognosis in hepatocellular carcinoma after resection
Authors:
Yi-Wei Li, Shuang-Jian Qiu, Jia Fan, Qiang Gao, Jian Zhou, Yong-Sheng Xiao, Yang Xu, Xiao-Ying Wang, Jian Sun, Xiao-Wu Huang
Published in:
Journal of Cancer Research and Clinical Oncology
|
Issue 3/2009
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Abstract
Purpose
To evaluate the prognostic value of tumor-associated macrophages (TAM), individually or synergistically with CD45RO + memory T cells (TM), in hepatocellular carcinoma (HCC) patients following resection.
Methods
The infiltration of TAM and TM was assessed by immunohistochemistry in tissue microarray containing 302 HCC specimens. Correlations between TAM/TM infiltration and clinicopathologic features, disease-free survival (DFS) and overall survival (OS) were statistically analyzed.
Results
High TAM infiltration was associated with both improved DFS (P = 0.0021) and OS (P = 0.0481). Multivariate analysis identified TAM infiltration as independent prognostic factor for DFS (P = 0.004) and OS (P = 0.049). A second analysis clarified the synergistic effect of TAM&TM infiltration for DFS (P = 0.004) and OS (P = 0.040).
Conclusions
Both TAM infiltration alone and concomitant infiltration of TAM&TM are associated with improved DFS/OS, suggesting that TAM could protect HCC patients from recurrence/metastasis and prolong survival by distinct mechanisms.