PT  - JOURNAL ARTICLE
AU  - VERONIKA ZIVICOVA
AU  - PETER GAL
AU  - ALZBETA MIFKOVA
AU  - STEPAN NOVAK
AU  - HERBERT KALTNER
AU  - MICHAL KOLAR
AU  - HYNEK STRNAD
AU  - JANA SACHOVA
AU  - MILUSE HRADILOVA
AU  - MARTIN CHOVANEC
AU  - HANS-JOACHIM GABIUS
AU  - KAREL SMETANA, JR.
AU  - ZDENEK FIK
TI  - Detection of Distinct Changes in Gene-expression Profiles in Specimens of Tumors and Transition Zones of Tenascin-positive/-negative Head and Neck Squamous Cell Carcinoma
DP  - 2018 Mar 01
TA  - Anticancer Research
PG  - 1279--1290
VI  - 38
IP  - 3
4099  - http://ar.iiarjournals.org/content/38/3/1279.short
4100  - http://ar.iiarjournals.org/content/38/3/1279.full
SO  - Anticancer Res2018 Mar 01; 38
AB  - Background/Aim: Having previously initiated genome-wide expression profiling in head and neck squamous cell carcinoma (HNSCC) for regions of the tumor, the margin of surgical resecate (MSR) and normal mucosa (NM), we here proceed with respective analysis of cases after stratification according to the expression status of tenascin (Ten). Materials and Methods: Tissue specimens of each anatomical site were analyzed by immunofluorescent detection of Ten, fibronectin (Fn) and galectin-1 (Gal-1) as well as by microarrays. Results: Histopathological examination demonstrated that Ten+Fn+Gal-1+ co-expression occurs more frequently in samples of HNSCC (55%) than in NM (9%; p<0.01). Contrary, the Ten−Fn+Gal-1− (45%) and Ten−Fn−Gal-1− (39%) status occurred with significantly (p<0.01) higher frequency than in HNSCC (3% and 4%, respectively). In MSRs, different immunophenotypes were distributed rather equally (Ten+Fn+Gal-1+=24%; Ten−Fn+Gal-1−=36%; Ten−Fn−Gal-1−=33%), differing to the results in tumors (p<0.05). Absence/presence of Ten was used for stratification of patients into cohorts without a difference in prognosis, to comparatively examine gene-activity signatures. Microarray analysis revealed i) expression of several tumor progression-associated genes in Ten+ HNSCC tumors and ii) a strong up-regulation of gene expression assigned to lipid metabolism in MSRs of Ten− tumors, while NM profiles remained similar. Conclusion: The presented data reveal marked and specific changes in tumors and MSR specimens of HNSCC without a separation based on prognosis.