PMID- 26806738 OWN - NLM STAT- MEDLINE DCOM- 20160426 LR - 20211203 IS - 1673-4254 (Print) IS - 1673-4254 (Linking) VI - 36 IP - 1 DP - 2016 Jan TI - [Expressions of SMG-1, ATM and P53 in laryngeal squamous cell carcinoma and their clinical significance]. PG - 50-5 AB - OBJECTIVE: To detect the expression of SMG-1, ATM and P53 in laryngeal squamous cell carcinoma (LSCC) and their correlation with the clinicopathological features and outcomes of the patients. METHODS: Sixty-three specimens of surgically resected LSCC tissues and 30 specimens of adjacent normal tissue were examined for the expressions of ATM, SMG-1 and P53 using immunohistochemistry. The correlation of ATM, SMG-1 and P53 expressions with the clinicopathological factors and their interactions were analyzed. RESULTS: The positive expression rates of SMG-1, ATM and P53 in LSCC were 36.5% (23/63) , 41.3% (26/63) and 57.1% (36/63) respectively, significantly different from those in the adjacent tissue (73.3%, 83.3% and 20.0%, respectively; P<0.05). The expression of SMG-1 in LSCC was positively correlated with the pathological grade and T stage of the tumors (P<0.05), and ATM and P53 were not related to the clinicopathological factors (P>0.05). The 5-year survival rate of patients negative for SMG-1 expression was significantly higher than that of SMG-1-positive patients (P<0.05). The expression of SMG-1 was negatively correlated with that of P53 (r=-0.476, P<0.01). CONCLUSION: SMG-1, ATM and P53 are closely related to the occurrence of LSCC. SMG-1 expression is an important factor associated with the clinicopathological features and prognosis of LSCC patients, and may play an important role in the development of LSCC by regulating P53 expression. FAU - Zhou, Xuejun AU - Zhou X AD - Department of Otolaryngology, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China.E-mail: zxjclp@sina.com. FAU - Wang, Xiaofeng AU - Wang X FAU - Feng, Yongjun AU - Feng Y FAU - Xie, Minqiang AU - Xie M LA - chi PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - China TA - Nan Fang Yi Ke Da Xue Xue Bao JT - Nan fang yi ke da xue xue bao = Journal of Southern Medical University JID - 101266132 RN - 0 (TP53 protein, human) RN - 0 (Tumor Suppressor Protein p53) RN - EC 2.7.11.1 (ATM protein, human) RN - EC 2.7.11.1 (Ataxia Telangiectasia Mutated Proteins) RN - EC 2.7.11.1 (Protein Serine-Threonine Kinases) RN - EC 2.7.11.1 (SMG1 protein, human) SB - IM MH - Ataxia Telangiectasia Mutated Proteins/genetics/*metabolism MH - Carcinoma, Squamous Cell/genetics/*metabolism MH - Humans MH - Immunohistochemistry MH - Laryngeal Neoplasms/genetics/*metabolism MH - Lymphatic Metastasis MH - Phosphatidylinositol 3-Kinases/genetics/*metabolism MH - Prognosis MH - Protein Serine-Threonine Kinases MH - Survival Rate MH - Tumor Suppressor Protein p53/genetics/*metabolism EDAT- 2016/01/26 06:00 MHDA- 2016/04/27 06:00 CRDT- 2016/01/26 06:00 PHST- 2016/01/26 06:00 [entrez] PHST- 2016/01/26 06:00 [pubmed] PHST- 2016/04/27 06:00 [medline] PST - ppublish SO - Nan Fang Yi Ke Da Xue Xue Bao. 2016 Jan;36(1):50-5.