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Respiratory carcinoma cell lines. MUC genes and glycoconjugates.

Respiratory carcinoma cell lines. MUC genes and glycoconjugates. Research Abstract Details 

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  • Respiratory carcinoma cell lines. MUC genes and glycoconjugates. Abstract Text:

    j t bergerJ T Berger,j a voynowJ A Voynow,k w petersK W Peters,m c roseM C Rose,

    Lung carcinoma cell lines are being used in many laboratories to study various airway epithelial functions, including mucin gene expression. To identify model systems for investigating regulation of MUC5/5AC gene expression and secretion of MUC5/5AC mucins in airway epithelial cells, we evaluated the expression of several mucin genes in six carcinoma cell lines of respiratory tract origin. RNA was extracted from A549, Calu-3, NCI H292, Calu-6, RPMI 2650, and A-427 cells; MUC1, MUC2, MUC4, MUC5/5AC, and MUC5B messenger RNA (mRNA) expression was determined. By Northern analyses, all cell lines expressed MUC1 mRNA, whereas MUC2 mRNA was not detectable in any of the cell lines. RPMI 2650 cell lines expressed only MUC1 mRNA. NCI-H292 cells expressed MUC4 and low levels of MUC5/5AC mRNA. Calu-3 and A549 cells expressed MUC5/5AC mRNA; A549 cells also expressed MUC5B mRNA. Glycoconjugates secreted by lung carcinoma cells were also examined. By wheat germ lectin analysis, Calu-3, H292, and A549 cells secreted high molecular weight glycoproteins having N-acetylglucosamine and/or sialic acid moieties. Western blot analyses with an anti-MUC5:TR-3A antibody demonstrated that Calu-3 and A549 cells secreted MUC5/5AC mucins. All six carcinoma cell lines secreted large, radiolabeled, sulfated macromolecules; the majority were proteoglycans that were digested by hyaluronidase. However, Calu-3 cells also secreted sulfated high molecular-weight glycoproteins that were immunoprecipitated by anti-MUC5:TR-3A antibody. These studies demonstrated that Calu-3 and A549 cell lines expressed high and moderate amounts of MUC5/5AC mRNA and MUC5/5AC mucins, whereas H292 cells expressed lesser amounts. These cell lines should prove useful for studies of MUC5/5AC gene expression and MUC5/5AC biosynthesis, trafficking, and secretions in airway epithelial cells.

    Respiratory carcinoma cell lines. MUC genes and glycoconjugates. Publishing Authors By Initials

    jt bergerJT Berger,ja voynowJA Voynow,kw petersKW Peters,mc roseMC Rose,

    For similar cells: cells, cultured: tumor cells, cultured research abstracts see: cells: cells, cultured: tumor cells, cultured research

    PUBMED ID PMID:

    MEDLINE DATE:

    Respiratory carcinoma cell lines. MUC genes and glycoconjugates. Journal Published:

    PUBLICATION TYPE: Research Support, U.S. Gov't,

    Journal: American journal of respiratory cell and molecular

    VOLUME: 20

    Page Numbers: 500-10

    Journal Abbreviation: Am. J. Respir. Cell Mol. Biol.

    ISSN: 1044-1549

    DAY: 29

    MONTH: Mar

    YEAR: 1999

    Respiratory carcinoma cell lines. MUC genes and glycoconjugates. Information

    Number of References:

    LANGUAGE: eng

    NlmUniqueID: 8917225

    Respiratory carcinoma cell lines. MUC genes and glycoconjugates. Keywords Mesh Terms:

    KEYWORDS: Tumor Cells, Cultured

    MESH TERMS: metabolism

    Chemical & Substance for Abstract: Respiratory carcinoma cell lines. MUC genes and glycoconjugates. Information

    Substance Name: RNA, Messenger

    Registry Number: 0

    Grant and Affiliation Information for Respiratory carcinoma cell lines. MUC genes and glycoconjugates.

    AFFILIATION: Center for Molecular Mechanisms of Diseases, Children's Research Institute, Children's National Medical Center, Washington, DC 20010-2970, USA.

    Country: UNITED STATES

    UNITED STATES Research PublicationUNITED STATES Research Publication

    AGENCY: United States NHLBI

    GRANT: R29 HL50694

    ACRONYM: HL

    MEDLINETA: Am J Respir Cell Mol Biol

    REFSOURCE:

    DATABASENAME:

    ACCESSION NUMBER:

    Number Hits: 0

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