Jongmin Sim1, Yeseul Kim2, Hyungsung Kim2, Seongsik Bang2, Seungyun Jee2, Seongun Park2, Su-Jin Shin2, Kiseok Jang3. 1. Department of Pathology, Samsung Medical Center, Seoul, Republic of Korea. 2. Department of Pathology, College of Medicine, Hanyang University, Seoul, Republic of Korea. 3. Department of Pathology, College of Medicine, Hanyang University, Seoul, Republic of Korea medartisan@hanyang.ac.kr.
Abstract
BACKGROUND/AIM: Microtubule-associated scaffold protein 1 (MTUS1) acts as tumor suppressor in several cancer types. This study assessed the relationship between clinicopathological characteristics and expression of microRNA candidates based on MTUS1 expression in gallbladder cancer (GBC). MATERIALS AND METHODS: MTUS1 expression was evaluated by immunohistochemical staining of tissue microarrays from 109 cases of GBC. The association of MTUS1 expression with clinicopathological factors was explored. Two microRNA candidates (miR-19a-3p, and miR-19b-3p), which were identified by a literature review and computational analysis, were assessed in GBC tissue samples by quantitative real-time polymerase chain reaction. RESULTS: Low MTUS1 expression in GBC was associated with high histological grade, perineural invasion, lymphovascular invasion, high T-stage, advanced TNM stage, poorer disease-free survival, and poorer cancer-specific survival. No statistical association between MTUS1 expression and expression of microRNA candidates was observed. CONCLUSION: MTUS1 may act as tumor suppressor and might be a potential biomarker for predicting prognosis in GBC. Copyright
BACKGROUND/AIM: Microtubule-associated scaffold protein 1 (MTUS1) acts as tumor suppressor in several cancer types. This study assessed the relationship between clinicopathological characteristics and expression of microRNA candidates based on MTUS1 expression in gallbladder cancer (GBC). MATERIALS AND METHODS:MTUS1 expression was evaluated by immunohistochemical staining of tissue microarrays from 109 cases of GBC. The association of MTUS1 expression with clinicopathological factors was explored. Two microRNA candidates (miR-19a-3p, and miR-19b-3p), which were identified by a literature review and computational analysis, were assessed in GBC tissue samples by quantitative real-time polymerase chain reaction. RESULTS: Low MTUS1 expression in GBC was associated with high histological grade, perineural invasion, lymphovascular invasion, high T-stage, advanced TNM stage, poorer disease-free survival, and poorer cancer-specific survival. No statistical association between MTUS1 expression and expression of microRNA candidates was observed. CONCLUSION:MTUS1 may act as tumor suppressor and might be a potential biomarker for predicting prognosis in GBC. Copyright
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