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  • 1
    ISSN: 1432-069X
    Keywords: 1-2B7B monoclonal antibody ; Hemidesmosome ; Epidermal-dermal junction
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Immunohistochemical and immunochemical analyses were performed on a monoclonal antibody designated 1-2B7B which was derived from immunizing mice with human prostate epithelial tissue. The 1-2B7B antigen was expressed not only along the acinous basement membrane zone (BMZ) of the prostate and testis, but also along the BMZ of the epithelia of several other organs including the skin, oesophagus, urinary bladder, ureter, stomach, intestine and bile duct. The antigenic epitope was not expressed in these tissues of lower mammals. Immunoelectron microscopic studies on normal human skin revealed that the 1-2B7B antigen was localized mainly just beneath the hemidesmosomes of basal keratinocytes, but not beneath melanocytes. Indirect immunofluorescence and immunoelectron microscopic studies on 1 M NaCl-split skin confirmed that this antigen was not separated from the cytoplasmic membrane of basal cells after salt treatment. SDS polyacrylamide gel electrophoresis of immunochemically purified protein from the epidermis demonstrated the molecular weight of the antigen to be 120 kDa. 1-2B7B monoclonal antibody should be a useful probe for studying the pathomechanism of some blistering diseases, as well as the assembly and function of the epidermal-dermal junction.
    Type of Medium: Electronic Resource
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