MUC8 as a ciliated cell marker in human nasal epithelium

Authors: Chang-hoon Kim; Hyun Jik Kim; Kyoung Seob Song; Je-kyung Seong; Kyung-su Kim; Jeung-gweon Lee; Joo-heon Yoon

Source: Acta Oto-Laryngologica, Volume 125, Number 1, January 2005 , pp. 76-81(6)

Publisher: Informa Healthcare

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Abstract:

Conclusions This study indicates that MUC8 protein is expressed in ciliated cells from human nasal epithelial cells and is upregulated by IL-1 beta

treatment. These results suggest that MUC8 gene and protein expression levels could be used as a ciliated cell marker in human nasal epithelium. Objectives To examine MUC8 mRNA expression patterns according to the mucociliary differentiation of normal human nasal epithelial (NHNE) cells, and to investigate the localization of MUC8 proteins in nasal polyps. Material and methods Passage-2 NHNE cells were cultured using an air-liquid interface technique. On Days 2, 7, 14 and 28 after confluence, ciliated cells were counted by means of cytospin slide immunostaining using H6C5 and beta

-tubulin, and MUC8 mRNA levels were determined using real-time quantitative polymerase chain reaction (PCR). After synthesizing polyclonal anti-MUC8 peptide antibodies, MUC8 immunostaining was performed using nasal polyps. MUC8 mRNA and protein levels were determined in NHNE cells treated with IL-1 beta

(10 ng/ml for 24 h) using reverse transcriptase-PCR and Western blot analysis. Results The increases in the number of ciliated cells and the MUC8 gene expression level with increasing culture time in the NHNE cells were quite similar. MUC8 was expressed in the ciliated cells of human nasal polyps. The MUC8 protein level and the mRNA level were upregulated as a result of IL-1 beta

treatment.

Keywords: Ciliated cell; MUC8; nasal epithelial cells

Document Type: Research article

DOI: http://dx.doi.org/10.1080/00016480410015785

Affiliations: 1: Laboratory of Developmental Biology and Genomics, College of Veterinary Medicine Seoul National University Seoul South Korea

Publication date: 2005-01-01

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