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  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    British journal of dermatology 98 (1978), S. 0 
    ISSN: 1365-2133
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The lymphocytic infiltrate of lichen planus was studied by the identification of the human T lymphocyte antigen in frozen tissue sections using specific anti-human T lymphocytes antigen antiserum. The infiltrate was shown to be composed principally of T lymphocytes.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1365-2230
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: peripheral blood cells from forty patients with atopic dermatitis and elevated serum IgE levels were studied by indirect immunofluorescence using monoclonal antibodies OKT3, OKT4, OKT8 to, respectively, human T cells, helper-inducer and suppressor-cytotoxic T cell subsets.Decreased T cells with the suppressor-cytotoxic phenotype, with an abnormal balance between helper and suppressor cell subsets, and decreased peripheral blood T cells counts were found as compared to controls. Results were similar in the three age-matches group (4 months–2 years, 2–15 years, 15–50 years) studied.No correlation could be established between serum IgE levels and the elevated helper/suppressor cell ratios.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    International journal of dermatology 33 (1994), S. 0 
    ISSN: 1365-4632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    International journal of dermatology 21 (1982), S. 0 
    ISSN: 1365-4632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: : The clinical and histopathological study of cutaneous and mucosal warts demonstrates divergences between clinical and histopathological diagnoses among the group of myrmecias, mosaics, acrodigitate, and common warts. There is correlations criteria (when considered separately), such as hyperkeratosis and absence at keratohyaline granules in flat warts, and in ano-genital vegetations. The existence of clinical and histological overlaps emphasizes that it is not clear whether these cases are rare clinical varieties caused by as yet unknown types of human papillomaviruses, or rather by differences in the degree of keratinization at different sites in the body.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    International journal of dermatology 21 (1982), S. 0 
    ISSN: 1365-4632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: : The role of cell-mediated immunity (CMI) in wart infection was demonstrated. The correlation with humoral immunity was also suggested. Patients with cell-mediated immune deficiency were found to be more susceptible to wart infection than those with humoral immune deficiency.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Clinical and experimental dermatology 9 (1984), S. 0 
    ISSN: 1365-2230
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Peripheral blood T lymphocytes and T cell subsets were examined in fifteen patients with lichen planus prior to and for 4 months during treatment.The percentages of different T cell sub-populations were defined by indirect immunofluorescence using monoclonal antibodies OKT3, OKT4 and OKT8. These are specific markers of total T cells, helper-inducer T cells and suppressor-cytotoxic T cells respectively.Decreased percentages of suppressor T cells and elevated helper suppressor ratios were observed before treatment and after 1 month of therapy. These changes had disappeared by the second month of treatment, by which time all the lesions had healed.
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1432-069X
    Keywords: Immunoelectronmicroscopy ; Skin ; SLE ; Pemphigus ; Bullous pemphigoid ; Dermatitis herpetiformis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Eine einfache Technik, die sich der immunperoxydasemarkierten Antikörper bedient, wird für die ultrastrukturelle Lokalisation der Immunoglobuline in Gewebeherden verwandt. Diese Technik erlaubt die Immunmarkierung von Gefrierschnitten von 15 µ Dicke auf Glasträger aufgezogen. Die Schnitte werden dann für die ultrastrukturelle Untersuchung unter Verwendung von Epon-gefüllten gelierten Kapseln überzogen und dann wieder auf den Objektträger gebracht. Nach Polymerisation wird die Kapsel, welche den Gewebeherd enthält, vom Glas durch Eintauchen in flüssigen Stickstoff getrennt. Diese Technik wurde verwandt, um gebundene Antikörper in den Hautherden des Lupus erythematodes, Pemphigus, bullöses Pemphigoid und Dermatitis herpetiformis zu untersuchen. Die Ergebnisse zeigen eine gute Möglichkeit zur Lokalisation der fixierten Antikörper, gute Konservierung des Gewebes und leichte Orientierung des biologischen Materials. Die Methode kann zum Studium von Gewebsantigenen verwandt werden.
    Notes: Summary A simple technique using immunoperoxidase-labelled antibodies is reported for the ultrastructural localization of fixed immunoglobulins in tissue lesions. This technique allows the immunolabeling of frozen sections of 15 µ mounted on glass slides. These sections are then closed over for ultrastructural examination, using an Epon-filled gelatin capsule, and then returned to the glass slide. After polymerization, the capsule containing the tissue section is separated from the glass by immersion in liquid nitrogen. This technique is applied to the study of fixed Ig in the skin lesions of lupus erythematosus, pemphigus, bullous pemphigoid and dermatitis herpetiformis. The results obtained show a fine localization of fixed Ig, good tissue conservation and easy orientation of the biological material. It can be applied to the study of tissue antigens.
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1432-2307
    Keywords: Keratin polypeptides ; Epidermis ; Oral mucosa ; Epithelial differentiation ; Malignant transformation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Immune sera against total keratin and keratin polypeptide subunits were induced in guinea pigs, using the different bands of SDS polyacrylamide gel electrophoresis of fibrous proteins of stratum corneum, derived from normal human epidermis. The distribution of the different polypeptides was studied in numerous human biopsies of normal epidermis, normal oral mucosa and epidermal and mucosal inflammatory, premalignant and malignant lesions using the indirect immunoperoxidase method. Antisera against total keratin (TK) and against the keratin polypeptide of M.W. 55,000 dalton (55K) labelled all keratinocytes in normal and pathological conditions. These antisera may be useful for the histodifferentiation in diagnostic pathology. Atisera against the keratin polypeptides of M.W. 67,000 (67K) and 62,000 dalton (62K) identified only keratin antigens in the spinous, granular and keratinized layer of normal epidermis and oral mucosa. No labelling of the basal layer was achieved with these immune sera. However, there were important differences in the distribution of these keratin antigens in altered epithelia which may be of value in the differential diagnosis of inflammatory, premalignant and malignant lesions of the skin and oral mucosa.
    Type of Medium: Electronic Resource
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  • 9
    ISSN: 1432-2307
    Keywords: Epidermal repair ; Migration ; Fine and intermediate filaments ; Keratinocyte differentiation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Epidermal repair was studied after the induction of a suction blister on human abdominal skin. The investigation was concerned with keratinocyte migration from the epidermal wound margins and changes at the dermo-epidermal junction. Specific antisera against actin and keratin proteins showed the distribution of fine and intermediate filaments within marginal epithelial cells. Pemphigus- and pemphigoid-autoantibodies allowed the evaluation of the decomposition of extracellular substances. Transmission and scanning electron microscopy were used to analyze the submicroscopical changes in intra- and extraepithelial structures. It was found that suprabasal cells, defined by the presence of keratin polypeptides of 67000 daltons, moved out of the epidermis, thus covering the wound. These cells were strongly labelled by actin-antibodies at the wound margins. The expression of pemphigus antigen was not changed at the wound margins. Components of the basal membrane zone (bullous pemphigoid antigen) were not detected immunohistologically before keratinocytes were present at the surface of the wound. This finding supports the hypothesis that the substances at the junctional zone are partly of epithelial origin. Transmission electron microscopy showed that the lamina densa was present across the wound hiatus. In addition, the development of desmosomes and hemidesmosomes during wound healing was demonstrated. Scanning electron microscopy did not support the concept of cell movement as a coherent sheet, but rather that of an “ameboid” type of cell movement.
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 1432-2307
    Keywords: Bronchial mucosa ; Cell suspension ; Lung carcinomas ; Keratin polypeptides ; Immunohistochemistry
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The distribution of intracellular keratins was investigated in normal bronchial epithelium and in several morphologically distinct forms of respiratory tract carcinomas. This study was performed with two different experimentally produced antisera against normal human stratum corneum keratin and against keratin protein of MW 67000 dalton, using indirect immunofluorescence and immunoperoxidase methods on tissue sections and cell suspensions. In normal bronchial epithelium, the basal cells were strongly labelled by both antisera. The ciliated columnar cells appeared devoid of cytokeratins in tissue sections but were strongly labelled with both antisera in cell suspensions. The goblet cells remained negative in every case. In squamous metaplasia of the bronchus, all epithelial cells were unevenly stained with both antisera. Among tumours, only the squamous cell carcinomas were strongly labelled by both antisera. Primary lung adenocarcinoma appeared weakly positive, whereas metastatic lung carcinomas, undifferentiated lung carcinomas, oat cell tumours, carcinoid tumours were negative. The immunocytochemical determination of keratins appears to be of value in the study of normal and abnormal epithelial differentiation, in the diagnosis of poorly differentiated carcinomas and in their distinction from metastatic tumours of the lung.
    Type of Medium: Electronic Resource
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