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MUC2 mucin gene expression in the nose and maxillary sinus
K Takeuchi1, A Yuta, Y Sakakura
1Department of Otorhinolaryngology Mie University School of Medicine, Japan.
American Journal of Otolaryngology
|November 1, 1995
Summary
The MUC2 mucin gene is expressed in the nose and paranasal sinus. A novel two-round RT-PCR method aids in analyzing MUC2 gene expression from limited RNA samples.
Area of Science:
- Molecular Biology
- Otorhinolaryngology
Background:
- The MUC2 gene encodes the primary protein component of mucin.
- Mucin is crucial for mucosal linings in the intestine and lower airways.
Purpose of the Study:
- To investigate the expression of the MUC2 gene in the nasal passages and maxillary sinus.
- To determine if MUC2 mucin is present in the upper respiratory tract.
Main Methods:
- Utilized Northern blot analysis and reverse transcription-polymerase chain reaction (RT-PCR).
- RNA extracted from nasal polyps, maxillary mucosa, inferior turbinates, and normal nasal mucosa.
- Samples from patients with chronic sinusitis, allergic rhinitis, and hypertrophic rhinitis.
Main Results:
- Northern blot analysis detected MUC2 gene expression in some samples.
- RT-PCR, after a two-round amplification, identified MUC2 expression in a subset of samples.
- The two-round RT-PCR proved effective for detecting MUC2 from limited RNA.
Conclusions:
- MUC2 mucin gene expression is confirmed in the nose and paranasal sinus.
- The developed two-round RT-PCR technique is valuable for studying MUC2 gene expression with minimal RNA input.