PMID- 23087365 OWN - NLM STAT- MEDLINE DCOM- 20130227 LR - 20181202 IS - 1097-6817 (Electronic) IS - 0194-5998 (Linking) VI - 148 IP - 1 DP - 2013 Jan TI - Expression and significance of hypoxia-inducible factor-1alpha and survivin in laryngeal carcinoma tissue and cells. PG - 75-81 LID - 10.1177/0194599812464759 [doi] AB - OBJECTIVE: The aim was to evaluate hypoxia-inducible factor-1alpha (HIF-1alpha) and survivin expression in laryngeal squamous cell carcinoma (LSCC) tissues and cell lines and to investigate whether HIF-1alpha has an effect on the regulation of survivin gene expression in LSCC cells under hypoxia. STUDY DESIGN: Prospective, observational. SETTING: Shanghai Jiaotong University Affiliated First People's Hospital. SUBJECTS AND METHODS: The expression of HIF-1alpha and survivin protein in human LSCC tissues was analyzed by immunohistochemistry. HIF-1alpha and survivin gene expression levels in Hep-2 cells were detected by real-time quantitative reverse transcription polymerase chain reaction (RT-PCR) and Western blot under normoxic or hypoxic conditions. In hypoxic cells, HIF-1alpha expression was inhibited by RNA interference. RESULTS: HIF-1alpha and survivin were both highly expressed in LSCC tissues and significantly related to the clinical stage and lymph node metastasis (P < .05). Meanwhile, a positive correlation existed between HIF-1alpha and survivin expression (r = 0.456, P < .01). In LSCC cells, HIF-1alpha and survivin expression were obviously upregulated in response to hypoxia (P < .05). The downregulation of HIF-1alpha expression dramatically decreased survivin gene expression in hypoxic cells (P < .05). CONCLUSION: HIF-1alpha could be considered as an important regulator for the upregulation of survivin gene expression induced by hypoxia in LSCC cells, and both proteins could be regarded as 2 key predictors of malignant progression and metastasis of LSCC. FAU - Li, Da-wei AU - Li DW AD - Department of Otolaryngology-Head and Neck Surgery, Affiliated Eye and ENT Hospital of Fudan University, Shanghai, China. FAU - Zhou, Liang AU - Zhou L FAU - Jin, Bin AU - Jin B FAU - Xie, Jin AU - Xie J FAU - Dong, Pin AU - Dong P LA - eng PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20121019 PL - England TA - Otolaryngol Head Neck Surg JT - Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery JID - 8508176 RN - 0 (BIRC5 protein, human) RN - 0 (Biomarkers, Tumor) RN - 0 (Hypoxia-Inducible Factor 1, alpha Subunit) RN - 0 (Inhibitor of Apoptosis Proteins) RN - 0 (Survivin) SB - IM MH - Adult MH - Aged MH - Aged, 80 and over MH - Analysis of Variance MH - Biomarkers, Tumor/analysis MH - Blotting, Western MH - Carcinoma, Squamous Cell/*genetics/pathology/surgery MH - Female MH - *Gene Expression Regulation, Neoplastic MH - Humans MH - Hypoxia-Inducible Factor 1, alpha Subunit/*genetics/metabolism MH - Immunohistochemistry MH - Inhibitor of Apoptosis Proteins/*genetics/metabolism MH - Laryngeal Neoplasms/*genetics/pathology/surgery MH - Male MH - Middle Aged MH - Retrospective Studies MH - Reverse Transcriptase Polymerase Chain Reaction/methods MH - Sensitivity and Specificity MH - Survival Rate MH - Survivin MH - Tissue Embedding MH - Tumor Cells, Cultured MH - Up-Regulation EDAT- 2012/10/23 06:00 MHDA- 2013/02/28 06:00 CRDT- 2012/10/23 06:00 PHST- 2012/10/23 06:00 [entrez] PHST- 2012/10/23 06:00 [pubmed] PHST- 2013/02/28 06:00 [medline] AID - 0194599812464759 [pii] AID - 10.1177/0194599812464759 [doi] PST - ppublish SO - Otolaryngol Head Neck Surg. 2013 Jan;148(1):75-81. doi: 10.1177/0194599812464759. Epub 2012 Oct 19.