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Nucleoplasm staining patterns and cell cycle-associated expression of Ki-67 in middle ear cholesteatoma.

Authors
Raynov, AM; Moon, SK; Choung, YH; Hong, SP; Park, K
Citation
American journal of otolaryngology, 26(5):296-301, 2005
Journal Title
American journal of otolaryngology
ISSN
0196-07091532-818X
Abstract
OBJECTIVES: To compare Ki-67 expression patterns in middle ear cholesteatoma with the corresponding retroauricular and external auditory canal skins, and to determine the cell cycle-dependent localization of Ki-67.



MATERIAL AND METHODS: MIB-1 monoclonal antibody was used for comparative assessment of proliferative activity of middle ear cholesteatoma, external auditory canal skin, and retroauricular skin samples on formalin-fixed paraffin-embedded tissue sections. Primary keratinocytes from cholesteatoma tissue were isolated and subjected to kinetic analysis of the cell cycle.



RESULTS: Higher proliferative activity was established in cholesteatoma in comparison with retroauricular and external auditory canal skins. Three different staining patterns have been described. Kinetic analysis revealed continuous expression of Ki-67 during all active phases of the cell cycle and remained "silent" in resting cells.



CONCLUSION: The established correlation between the staining patterns and cell cycle-associated expression of Ki-67 specifies Ki-67 as a reliable and stable marker of proliferation for middle ear cholesteatoma.
MeSH terms
AnimalsAntibodies, MonoclonalBiological Markers/metabolismCell Proliferation*Cells, CulturedCholesteatoma, Middle Ear/metabolism*Ear Canal/metabolismHumansImmunohistochemistryKeratinocytes/metabolismKi-67 Antigen/metabolism*MiceStaining and LabelingTympanic Membrane/metabolism
DOI
10.1016/j.amjoto.2005.01.012
PMID
16137526
Appears in Collections:
Journal Papers > School of Medicine / Graduate School of Medicine > Otolaryngology
AJOU Authors
정, 연훈박, 기현
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