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Expression of beta-defensins in human middle ear cholesteatoma.

Park, K; Moon, SK; Choung, YH; Choi, HS
Acta oto-laryngologica, 123(2):236-240, 2003
Journal Title
Acta oto-laryngologica
OBJECTIVE: To establish the eventual presence of human beta-defensins (hBD) in middle ea r cholesteatoma and paired retroauricular skin samples obtained during surgical treatment.

MATERIAL AND METHODS: hBD were detected using immunohistochemical techniques and reverse transcriptase-polymerase chain reaction (RT-PCR).

RESULTS: It is hypothesized that hBD-1 and -2 are upregulated in cholesteatoma in comparison with retroauricular skin. The immunohistochemical study demonstrated stronger hBD-2-positive staining in middle ear cholesteatoma in comparison with retroauricular skin. No significant differences in hBD-1 expression were detected between cholesteatoma and skin samples. RT-PCR established elevated expression of hBD-2 mRNA in middle ear cholesteatomas. HBD-1 mRNA was constitutively expressed in cholesteatoma and retroauricular skin specimens.

CONCLUSION: These preliminary experimental results lead us to believe that hBD may play an important role in the chronic inflammatory state of middle ear cholesteatoma.
MeSH terms
Base SequenceBiological Markers/analysisCholesteatoma, Middle Ear/pathology*Cholesteatoma, Middle Ear/surgeryCulture TechniquesDNA Primers/analysisFemaleGene ExpressionHumansImmunohistochemistryMaleMolecular Sequence DataRNA, Messenger/analysisReverse Transcriptase Polymerase Chain Reaction*Sampling StudiesSensitivity and Specificitybeta-Defensins/geneticsbeta-Defensins/metabolism*
Appears in Collections:
Journal Papers > School of Medicine / Graduate School of Medicine > Otolaryngology
AJOU Authors
박, 기현문, 성균정, 연훈최, 호석
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