151. Transglutaminase 2 as an independent prognostic marker for survival of patients with non-adenocarcinoma subtype of non-small cell lung cancer
- Author
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Kyeong Man Hong, Kang Seo Park, Jae Heon Jeong, Dae Seok Kim, Hyeong Ryul Kim, Seong Yeol Park, Yong Bock Choi, Hyun Kyoung Kim, Chang-Min Choi, Byung-Ho Nam, Soo Youl Kim, and Se Jin Jang
- Subjects
Adult ,Male ,Cancer Research ,Pathology ,medicine.medical_specialty ,Lung Neoplasms ,Tissue transglutaminase ,Kaplan-Meier Estimate ,Biology ,lcsh:RC254-282 ,Cell Movement ,GTP-Binding Proteins ,Carcinoma, Non-Small-Cell Lung ,Cell Line, Tumor ,Biomarkers, Tumor ,medicine ,Carcinoma ,Humans ,Neoplasm Invasiveness ,Protein Glutamine gamma Glutamyltransferase 2 ,Lung cancer ,Aged ,Proportional Hazards Models ,Aged, 80 and over ,Transglutaminases ,integumentary system ,Research ,Cancer ,Middle Aged ,Prognosis ,medicine.disease ,lcsh:Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,Tumor Burden ,Oncology ,Cell culture ,Multivariate Analysis ,Cancer cell ,Cancer research ,biology.protein ,Molecular Medicine ,Immunohistochemistry ,Adenocarcinoma ,Female - Abstract
Background Expression of transglutaminase 2 (TGase 2) is related to invasion and resistance to chemotherapeutic agents in several cancer cells. However, there has been only limited clinical validation of TGase 2 as an independent prognostic marker in cancer. Methods The significance of TGase 2 expression as an invasive/migratory factor was addressed by in vitro assays employing down-regulation of TGase 2. TGase 2 expression as a prognostic indicator was assessed in 429 Korean patients with early-stage non-small cell lung cancer (NSCLC) by immunohistochemical staining. Results TGase 2 expression increased the invasive and migratory properties of NSCLC cells in vitro, which might be related to the induction of MMP-9. In the analysis of the immunohistochemical staining, TGase 2 expression in tumors was significantly correlated with recurrence in NSCLC (p = 0.005) or in the non-adenocarcinoma subtype (p = 0.031). Additionally, a multivariate analysis also showed a significant correlation between strong TGase 2 expression and shorter disease-free survival (DFS) in NSCLC (p = 0.029 and HR = 1.554) and in the non-adenocarcinoma subtype (p = 0.030 and HR = 2.184). However, the correlation in the adenocarcinoma subtype was not significant. Conclusions TGase 2 expression was significantly correlated with recurrence and shorter DFS in NSCLC, especially in the non-adenocarcinoma subtype including squamous cell carcinoma.
- Published
- 2011