Journal of International Oncology ›› 2016, Vol. 43 ›› Issue (1): 5-7.doi: 10.3760/cma.j.issn.1673-422X.2016.01.002

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Expression and clinical significance of S100A11 in non-small cell lung cancer

Chen Xiaoping, Pu Yong, Feng Jingjie, Hua Dong   

  1. Department of Oncology, Affiliated Hospital of Jiangnan University, Wuxi 214062, China
  • Received:2015-06-15 Online:2016-01-08 Published:2015-12-03
  • Contact: Hua Dong E-mail:wx89211@163.com

Abstract: Objective To investigate the expression of S100A11 protein in nonsmall cell lung cancer (NSCLC) and its association with clinical and pathological characteristics. MethodsThe expressions of S100A11 protein in 112 NSCLC tumor tissues (group A), tumoradjacent tissues (group B) and 10 normal lung tissues (group C) were detected by immunohistochemical SP method. The association of S100A11 expression with clinical pathological characteristics was analyzed. ResultsThe percentage of the cases with high expression cases of S100A11 protein was 78.6% (88/112), and the low expression rate was 21.4 % (24/112) in group A. The low expression rate of S100A11 protein was 100.0% (112/112) in group B. The negative expression rate of S100A11 protein was 100.0% (10/10) in group C. The difference of S100A11 expression among the three groups was statistically significant (χ2=153.634, P<0.001). The S100A11 expression was associated with pathological type (χ2=6.807, P=0.009), differentiated degree (χ2=5.029, P=0.025), regional lymph node metastasis (χ2=11.721, P=0.001) in NSCLC, but it was not associated with gender (χ2=0.020, P=0.888), age (χ2=0.816, P=0.366) and tumor size (χ2=0.406, P=0.524). ConclusionS100A11 is highly expressed in NSCLC, which is closely related with biological behavioral characteristics. S100A11 may participate in the occurrence and development of NSCLC, and it is expected to become the potential target of diagnosis and prognosis in patients with NSCLC.

Key words: Carcinoma, non-small-cell lung, Immunohistochemistry, S100A11