[Gene expression profiles in human nasal polyps studied by DNA microarray].
ABSTRACT To explore the changes in gene expressions in the human nasal polyp.
A 14500 gerie DNA microarray (Affymetrix) was used to examine gene expressions in 6 NP samples, 6 normal mucosal samples. The differentially expressed genes were identified and subjected to realtime PCR analysis.
The differentially expressed genes mostly involved in cytokines, adhesion genes about complements and their receptors, immune transcription regulatory molecules, signal transduction, differentially expressed genes including IL-8, RGS1, GRK4, CCL20, uteroglobin. The results of IL-8, RGS1 Real-time PCR of were consistent with that of gene chip analysis.
Microarray expression profile of NP samples is differential. RGS1 may play an important role in cell signal transduction, IL-8 may involve in occurrence of nasal polyps by inducing cells releasing inflammatory factors.
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ABSTRACT: Nasal polyposis (NP) is a common chronic inflammatory disease of the rhinosinus mucosa and a complex disease with strong genetic and environmental components. During the past 10 to 20 yr, many studies have been performed to determine differential gene expression profiles between NP and normal nasal tissues, in order to identify susceptible genes that are associated with NP-related traits. Despite achievement in the identification of candidate genes and their associated pathogenic pathways, the large challenges remain as the genetic and molecular alterations required for its development and progression are still unclear. Therefore, the development of novel, powerful tools for gene discovery, and a closer integration of genetics and medical biology would provide valuable insight into the pathogenesis of NP.Clinical and Experimental Otorhinolaryngology 01/2009; 1(4):177-83. · 0.88 Impact Factor