Investigation of angiogenetic pathways in nasal polyposis

Karatzanis,Alexandros  D.; Samara,Katerina  D.; Antoniou,Katerina  M.; Lymbouridou,Rena; Chatzakis,Nikolaos; Spandidos,Demetrios  A.; Velegrakis,Georgios  A.; Siafakas,Nikolaos  M.

doi:10.3892/mmr.2012.819

Investigation of angiogenetic pathways in nasal polyposis

Authors:
- Alexandros D. Karatzanis
- Katerina D. Samara
- Katerina M. Antoniou
- Rena Lymbouridou
- Nikolaos Chatzakis
- Demetrios A. Spandidos
- Georgios A. Velegrakis
- Nikolaos M. Siafakas
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Affiliations: Laboratory of Molecular and Cellular Pulmonary Medicine, Medical School, University of Crete, Heraklion, Crete, Greece, Department of Thoracic Medicine, University Hospital, Medical School, University of Crete, Heraklion, Crete, Greece, Department of Otolaryngology, Medical School, University of Crete, Heraklion, Crete, Greece, Laboratory of Virology, Medical School, University of Crete, Heraklion, Crete, Greece
Published online on: March 1, 2012 https://doi.org/10.3892/mmr.2012.819
Pages: 1158-1162

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Abstract

Tissue angiogenesis is a complex phenomenon that results in the growth of new blood vessels from the microcirculation. This process has been known to play a crucial role in tumor growth as well as several benign diseases. The aim of this study was to assess mRNA expression of various angiogenic factors and chemokines in nasal polyps and compare the results to normal nasal mucosa. mRNA expression was measured using real-time RT-PCR for the following angiogenic factors and chemokines: VEGF, VEGFR-1, Ang-1, Ang-2, Tie-2A, Tie-2B, SDF-1α, SDF-1β, CXCR4 and YY1. Biopsy specimens from nasal polyps in the polyposis group and middle turbinates in the control group were studied. A total of 18 nasal polyposis patients were studied and compared to 10 control subjects. Results showed VEGF, VEGFR-1, Ang-1, Ang-2, Tie-2A, Tie-2B, SDF-1α and SDF-1β mRNA expression to be significantly higher in nasal polyposis patients compared to the control group (p<0.05). The findings of this study support the role of angiogenic growth factors in the pathogenenesis of nasal polyposis. Further studies are required to confirm these results and evaluate potential clinical implications.