Author(s)

Shao-Liang Han, Jun Cheng, Xiu-Ling Wu, Zeng-Rong Jia, Peng-Fei Wang, Zhan-Wei Wang

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Background and Objectives: Increased expression of the CD97, nuclear factor-kB (NF-kB) and cyclooxygenase-2 (COX-2) has been found to play an important role in development of many cancers, including gastric neoplasm. However, the expression and biological behavior of CD97, NF-kB and COX-2 in gastric MALT (mucosa-associated lymphoid tissue) lymphoma has not been well investigated. Methods: The expressions of CD97, COX-2 and NF-kB in 47 cases of gastric MALT lymphoma were detected immunohistochemically, and the relevance between their expressions and the biological behavior was analyzed retrospectively. Results: 1) The expressions of CD97, NF-kB and COX-2 were 87.2%, 36.2% and 48.9%, respectively; 2) The difference of CD97 expression between depth of invasion limited in mucosa and submucosa and beyond muscularis propria was significant (100.0% vs. 71.4%, P < 0.01). Moreover, the expression of nuclear CD97 between stage IIE, III, IV and stage I patients showed significant difference (96.4% vs. 73.7%, P < 0.05); 3) The expression of NF-kB was significantly correlated with tumor size, depth of invasion and stage; 4) The expression of COX-2 was significantly correlated with Helicobacter pylori infection, clinical stage, depth of invasion and tumor size (P < 0.05). Conclusions: Expressions of CD97, NF-κB and COX-2 were correlated with tumor invasion and metastasis in gastric MALT lymphoma.

Stomach Neoplasm; CD97; Nuclear Factor-Kb (NF-Kb); Cyclooxygenase-2 (COX-2); Mucosa-Associated Lymphoid Tissue (MALT) Lymphoma

Han, S. , Cheng, J. , Wu, X. , Jia, Z. , Wang, P. and Wang, Z. (2011) The clinical significance of CD97, NF-kB and COX-2 ingastric MALT lymphomas. Journal of Biomedical Science and Engineering, 4, 483-489. doi: 10.4236/jbise.2011.47061.