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. 2015 Jan 1;6(1):547-55.
doi: 10.18632/oncotarget.2772.

Gene expression analysis of head and neck squamous cell carcinoma survival and recurrence

Xu Zhi  1 , Katarzyna Lamperska  2 , Paweł Golusinski  3 , Nicholas J Schork  4 , Lukasz Luczewski  5 , Tomasz Kolenda  6 , Wojciech Golusinski  5 , Michal M Masternak  7
Affiliations

Gene expression analysis of head and neck squamous cell carcinoma survival and recurrence

Xu Zhi et al. Oncotarget. .

Abstract

The squamous cell carcinomas represent about 90 % of all head and neck cancers, ranking the sixth most common human cancer. Approximately 450,000 of new cases of head and neck squamous cell carcinoma (HNSCC) are diagnosed every year. Unfortunately, because of diagnosis at the advanced stages and early metastasis to the lymph nodes, the HNSCC is associated with very high death rate. Identification of signature biomarkers and molecularly targeted therapies could provide more effective and specific cancer treatment, prevent recurrence, and increase survival rate. We used paired tumor and adjacent normal tissue samples to screen with RT² Profiler™ PCR Array Human Cancer PathwayFinderTM . Total of 20 up-regulated genes and two down-regulated genes were screened out. Out of 22 genes, 12 genes were subsequently validated to be significantly altered in the HNSCC; the samples were from all 41 patients. Five year survival and recurrence selected genes that could represent the biomarkers of survival and recurrence of the disease. We believe that comprehensive understanding of the unique genetic characteristics of HNSCC could provide novel diagnostic biomarkers and meet the requirement for molecular-targeted therapy for the HNSCC.

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Figures

Figure 1
Figure 1. Screening by RT² Profiler™ PCR Array Human Cancer PathwayFinderTM (PAHS-033Z)
Eighty-four cancer related genes were analyzed using RT² Profiler™ PCR Array (n = 5 per group). Twenty-two genes were identified with more than two-fold changes between malignant and normal oral mucosa, shown in red and green circles, respectively.
Figure 2
Figure 2. Validation of the PCR screening results
Total 22 genes, screened out by RT² Profiler™ PCR Array, were validated using real-time PCR in a larger patient number (n = 41 per group). Ten genes showed significant changes between paired tumor and adjacent normal tissues. SOX10 gene showed extremely low expression and was excluded from further investigation (*p < 0.05; **p < 0.01, t-test).
See this image and copyright information in PMC

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