Murine mCLCA5 is expressed in granular layer keratinocytes of stratified epithelia

被引:0
作者
Josephine Braun
Melanie K. Bothe
Lars Mundhenk
Carol L. Beck
Achim D. Gruber
机构
[1] Freie Universität Berlin,Department of Veterinary Pathology, Faculty of Veterinary Medicine
[2] Thomas Jefferson University,Department of Pharmacology and Experimental Therapeutics
来源
Histochemistry and Cell Biology | 2010年 / 133卷
关键词
Calcium-activated chloride channel; Squamous epithelium; Mouse; Skin; Stomach;
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学科分类号
摘要
CLCA proteins represent a large family of proteins widely expressed in mammalian tissues with a unique expression pattern for each family member analyzed so far. However, their functions in normal and diseased tissues are poorly understood. Here, we present the cellular expression pattern of mCLCA5 in murine tissues using immunohistochemistry, confocal laser scanning microscopy and immune electron microscopy with specific antibodies and RT-qPCR following laser-capture microdissection. The mCLCA5 protein was localized to granular layer keratinocytes of virtually all stratified squamous epithelia of the body. Biochemical protein characterizations revealed that the amino-terminal cleavage product is fully secreted by the cell, while the carboxy-terminal cleavage product remains associated with the cell. The results imply that mCLCA5 may play a role in maturation and keratinization of squamous epithelial cells.
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页码:285 / 299
页数:14
相关论文
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  • [1] Abdel-Ghany M(2001)The breast cancer beta 4 integrin and endothelial human CLCA2 mediate lung metastasis J Biol Chem 276 25438-25446
  • [2] Cheng HC(2002)Focal adhesion kinase activated by beta(4) integrin ligation to mCLCA1 mediates early metastatic growth J Biol Chem 277 34391-34400
  • [3] Elble RC(2003)The interacting binding domains of the beta(4) integrin and calcium-activated chloride channels (CLCAs) in metastasis J Biol Chem 278 49406-49416
  • [4] Pauli BU(1976)Keratinization of the oral epithelium Ann R Coll Surg Engl 58 351-358
  • [5] Abdel-Ghany M(1999)Identification of three novel members of the calcium-dependent chloride channel (CaCC) family predominantly expressed in the digestive tract and trachea FEBS Lett 455 295-301
  • [6] Cheng HC(2005)Overexpression of eCLCA1 in small airways of horses with recurrent airway obstruction J Histochem Cytochem 53 1011-1021
  • [7] Elble RC(2004)Re-expression of detachment-inducible chloride channel mCLCA5 suppresses growth of metastatic breast cancer cells J Biol Chem 279 41634-41641
  • [8] Pauli BU(2000)Novel insights into the function of the thymic Hassall’s bodies In Vivo 14 407-418
  • [9] Abdel-Ghany M(2008)Murine mCLCA6 is an integral apical membrane protein of non-goblet cell enterocytes and co-localizes with the cystic fibrosis transmembrane conductance regulator J Histochem Cytochem 56 495-509
  • [10] Cheng HC(2005)Blue native-SDS PAGE analysis reveals reduced expression of the mClCA3 protein in cystic fibrosis knock-out mice Mol Cell Proteomics 4 1762-1775