PMID- 28453462 OWN - NLM STAT- MEDLINE DCOM- 20180426 LR - 20180426 IS - 1875-8592 (Electronic) IS - 1574-0153 (Linking) VI - 19 IP - 3 DP - 2017 Jul 4 TI - Up-regulated miR-221 expression as a molecular diagnostic marker in laryngeal squamous cell carcinoma and its correlation with Apaf-1 expression. PG - 279-287 LID - 10.3233/CBM-160444 [doi] AB - BACKGROUND: Despite the improvement in the diagnosis and the management of laryngeal squamous cell carcinoma (LSCC), many patients with advanced-stage have poor prognosis in the form of recurrence, metastasis or death. So, recognition of new molecular markers would facilitate the development of targeted therapies. OBJECTIVES: To investigate miR-221 expression in LSCC and its possible correlation to apoptotic protease activating factor-1 (Apaf-1). Also, we aimed to investigate the association between miR-221 and Apaf-1 expressions and the clinicopathological features of LSCC. METHODS: We investigated the expression of miR-221 (by qRT-PCR) and Apaf-1 (by qRT-PCR and immunohistochemistry) in primary LSCC and adjacent normal tissues. RESULTS: We found significant up-regulation of miR-221 and significant down-regulation of Apaf-1 expression in LSCC tissues compared to normal nearby laryngeal tissues. In addition, significant associations between up-regulated miR-221 and down-regulated Apaf-1 expressions and clinical stage and lymph node (LN) metastasis (P< 0.001 for each) were found. Furthermore, there was a negative correlation between miR-221 gene expression and Apaf-1 gene expression (r=-0.73, P< 0.001). CONCLUSION: miR-221 can be considered as a diagnostic marker in LSCC and Apaf-1 may be considered as a possible target of miR-221. FAU - Hussein, Samia AU - Hussein S AD - Department of Medical Biochemistry and Molecular Biology, Faculty of Medicine, Zagazig University, Zagazig, Egypt. FAU - Mosaad, Hala AU - Mosaad H AD - Department of Medical Biochemistry and Molecular Biology, Faculty of Medicine, Zagazig University, Zagazig, Egypt. FAU - Rashed, Hayam E AU - Rashed HE AD - Department of Pathology, Faculty of Medicine, Zagazig University, Zagazig, Egypt. FAU - El-Anwar, Mohammad W AU - El-Anwar MW AD - Department of Otorhinolaryngology and Head and Neck Surgery, Faculty of Medicine, Zagazig University, Zagazig, Egypt. LA - eng PT - Journal Article PL - Netherlands TA - Cancer Biomark JT - Cancer biomarkers : section A of Disease markers JID - 101256509 RN - 0 (APAF1 protein, human) RN - 0 (Apoptotic Protease-Activating Factor 1) RN - 0 (Biomarkers, Tumor) RN - 0 (MIRN221 microRNA, human) RN - 0 (MicroRNAs) SB - IM MH - Adult MH - Aged MH - Apoptotic Protease-Activating Factor 1/*biosynthesis/genetics/metabolism MH - Biomarkers, Tumor MH - Carcinoma, Squamous Cell/*diagnosis/pathology MH - Female MH - Humans MH - Laryngeal Neoplasms/*diagnosis/pathology MH - Male MH - MicroRNAs/*metabolism MH - Middle Aged MH - Prognosis MH - Up-Regulation OTO - NOTNLM OT - Apaf-1 OT - Laryngeal squamous cell carcinoma OT - miR-221 EDAT- 2017/04/30 06:00 MHDA- 2018/04/27 06:00 CRDT- 2017/04/29 06:00 PHST- 2017/04/30 06:00 [pubmed] PHST- 2018/04/27 06:00 [medline] PHST- 2017/04/29 06:00 [entrez] AID - CBM160444 [pii] AID - 10.3233/CBM-160444 [doi] PST - ppublish SO - Cancer Biomark. 2017 Jul 4;19(3):279-287. doi: 10.3233/CBM-160444.