Abstract
Purpose
To determine the Galectin-1 protein expression in oral squamous cell carcinoma (OSCC).
Methods
Comparative proteomic analysis of an in vitro cellular carcinogenesis model of OSCC we previously established was performed to identify differentially expressed proteins. Galectin-1 was further validated in vitro (human immortalized oral epithelia cell line and OSCC lines) and in vivo (tissue samples from OSCC patients) by Western blotting and immunohistochemistry, respectively.
Results
Increased Galectin-1 protein expression was identified in the cancerous cell line compared with the immortalized oral epithelial cell line in the in vitro cellular carcinogenesis model, and then validated in the OSCC lines and cancerous tissues. Galectin-1 protein expression was negatively correlated with the tumor pathologic differentiation grades, a higher Galectin-1 protein expression indicating a poorer pathologic differentiation grade.
Conclusions
Galectin-1 protein expression level increases in OSCC, it may serve as a candidate marker for pathologic differentiation grade of OSCC.
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Acknowledgments
These works were supported by research grants 30973344 and 30700953 from National Natural Science Foundation of China; by research grant 2007CG22 from Shanghai Educational Development Foundation; by research grant (08QA14056) from Shanghai Rising-Star Program; by research grant 2007BAI18B03 from National Key Technology R&D Program of China; and by research grant 20060400168 from China Postdoctoral Science Foundation.
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Zhong, Lp., Wei, Kj., Yang, X. et al. Overexpression of Galectin-1 is negatively correlated with pathologic differentiation grade in oral squamous cell carcinoma. J Cancer Res Clin Oncol 136, 1527–1535 (2010). https://doi.org/10.1007/s00432-010-0810-2
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DOI: https://doi.org/10.1007/s00432-010-0810-2