Library

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    New York, NY [u.a.] : Wiley-Blackwell
    Microscopy Research and Technique 26 (1993), S. 357-365 
    ISSN: 1059-910X
    Keywords: Surfactant ; Squamous cells ; Plasma membrane ; Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Natural Sciences in General
    Notes: A mouse monoclonal antibody to a human lung lavage protein was raised using proteins, with the potential ability to bind surfactant, as the immunogen. The proteins were isolated from cadaver lung lavage. The antibody was tested for its reactivity with lung and other organs. It reacted with type I pneumocytes and some of the nonciliated cells in the surface epithelium of distal bronchioles. Staining was also seen in the cells surrounding the glandular structures, superficial keratinocytes of the skin, endothelium, and nerve sheath cells. With the exception of bronchiolar cells, the stained cells have a squamous morphology, and this protein may serve as a marker or determinant of this characteristic of cells. In pathologic lungs some of the cells in air spaces with “bronchiolarization” of the epithelium exhibited staining for the protein. It could not be ascertained whether the stained cuboidal cells were reactive type II pneumocytes or distal bronchiolar cells. The intraalveolar material in pulmonary alveolar proteinosis did not show remarkable staining for the protein. Even though the protein is not unique to type I pneumocytes, it may serve as a marker for these cells in the study of their development and biology. © 1993 Wiley-Liss, Inc.
    Additional Material: 10 Ill.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 2
    ISSN: 0003-276X
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Medicine
    Notes: An antibody to a protein produced by Clara cells in adult Syrian golden hamsters has been used to monitor the development and functional differentiation of secretory cells in the conducting airway epithelium of this species. Lungs from fetal and neonatal hamsters at gestational day 11 and at intervals up to and including 3.5 weeks of age (as well as adults) were studied. The earliest time this Clara cell protein could be identified by immunoperoxidase labeling in the fetal conducting airways was at gestational day 15. On this day, labeling was observed in a few secretory cells lining the trachea, in many lining the lobar bronchi, and in virtually all secretory cells lining the bronchioles. Ciliated cells and endocrine cells were not labeled. Granules first appeared within the apical cytoplasm of the secretory cells on gestational day 15 at all airway levels. To identify the exact subcellular location of this protein, an ultrastructural labeling procedure using protein A gold was employed. The gold particles labeled only electron-dense granules within the secretory cells, indicating that they represent the specific site of this protein. Since secretory cells in the most distal conducting airways began to produce this protein on the same day in development as cells in the larger airways, including the trachea, this expression of functional maturation occurs simultaneously throughout the conducting respiratory tree rather than proceeding sequentially in a cranial to caudal direction. Consequently, secretory cells lining the smaller conducting airways mature more rapidly than those lining the larger airways.
    Additional Material: 16 Ill.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...