PMID- 19513509 OWN - NLM STAT- MEDLINE DCOM- 20090814 LR - 20191210 IS - 1021-335X (Print) IS - 1021-335X (Linking) VI - 22 IP - 1 DP - 2009 Jul TI - Overexpression of mitogen-activated protein kinase kinase 4 and nuclear factor-kappaB in laryngeal squamous cell carcinoma: a potential indicator for poor prognosis. PG - 89-95 AB - This study aimed to investigate the expression and clinical significance of mitogen-activated protein kinase kinase 4 MKK4 and nuclear factor-kappaB (NF-kappaB) in patients with laryngeal squamous cell carcinoma (LSCC). We used immunohistochemistry (IHC) to examine the expression of MKK4 and NF-kappaB in 78 LSCCs and their adjacent normal tissues. To clarify the validity of MKK4 and NF-kappaB as determined by the IHC analysis, RT-PCR was performed on 21 tissues randomly selected from the 78 LSCCs. The positive expression rates of MKK4 and NF-kappaB in patients with LSCC were 67.9% (53/78) and 60.3% (47/78) respectively, which were significantly higher than those in the adjacent normal tissue (both P<0.01). The positive expression of MKK4 and NF-kappaB tended to be associated positively with lymph node metastasis (both P<0.01) as well as T stage (both P<0.01). The Spearman analysis indicated that the expression level of MKK4 was positively correlated with that of NF-kappaB significantly (rs=0.368, P<0.01). Overall survival curves estimated by Kaplan-Meier showed that tumor patients with low MKK4 and NF-kappaB expression in their tumor cells survive significantly longer than patients with high MKK4 and NF-kappaB levels (P=0.027, and P<0.01, respectively). In addition, multivariate Cox regression analysis showed that N stage, T stage and NF-kappaB expression are significant independent prognostic factors for overall survival (P<0.01, P=0.014, and P=0.027, respectively). These findings suggested that the expression of MKK4 and NF-kappaB may be considered as a useful prognostic marker of LSCC after surgical resection. FAU - Huang, Chuang AU - Huang C AD - Department of Otolaryngology, The First Affiliated Hospital, Chongqing Medical University, Chongqing, P.R. China. FAU - Huang, Kun AU - Huang K FAU - Wang, Chi AU - Wang C FAU - Jiang, Zhen-Dong AU - Jiang ZD FAU - Li, Xing-Xing AU - Li XX FAU - Wang, Hong-Peng AU - Wang HP FAU - Chen, Hong-Yan AU - Chen HY LA - eng PT - Evaluation Study PT - Journal Article PL - Greece TA - Oncol Rep JT - Oncology reports JID - 9422756 RN - 0 (Biomarkers, Tumor) RN - 0 (NF-kappa B) RN - EC 2.7.12.2 (MAP Kinase Kinase 4) RN - EC 2.7.12.2 (MAP2K4 protein, human) SB - IM MH - Adult MH - Aged MH - Aged, 80 and over MH - Biomarkers, Tumor/*analysis MH - Carcinoma, Squamous Cell/*enzymology/genetics/mortality/secondary/therapy MH - Female MH - Humans MH - Immunohistochemistry MH - Kaplan-Meier Estimate MH - Laryngeal Neoplasms/*enzymology/genetics/mortality/pathology/therapy MH - Lymphatic Metastasis MH - MAP Kinase Kinase 4/*analysis/genetics MH - Male MH - Middle Aged MH - NF-kappa B/*analysis/genetics MH - Neoplasm Staging MH - Predictive Value of Tests MH - Proportional Hazards Models MH - Reproducibility of Results MH - Reverse Transcriptase Polymerase Chain Reaction MH - Risk Assessment MH - Risk Factors MH - Treatment Outcome MH - Up-Regulation EDAT- 2009/06/11 09:00 MHDA- 2009/08/15 09:00 CRDT- 2009/06/11 09:00 PHST- 2009/06/11 09:00 [entrez] PHST- 2009/06/11 09:00 [pubmed] PHST- 2009/08/15 09:00 [medline] PST - ppublish SO - Oncol Rep. 2009 Jul;22(1):89-95.