Summary
Twelve patients with keratoacanthoma were studied to assess the role and importance of immunological factors in tumor regression. Direct immuno-fluorescence was determined with immunoglobulins, complement (C3), and fibrin to estimate the deposition of these factors in the lesion area. Indirect immunofluorescence was also undertaken using pemphigus and bullous pemphigoid sera against the keratoacanthoma lesion to study the presence or absence of tissue-specific antigens (T.S.A.) in intercellular substance and basement membrane. Finally, the cell-mediated immunity was studied using two in vitro parameters: (a) The estimation of T-lymphocytes through the formation of E-rosettes and (b) the estimation of the leukocyte migration inhibition factor (LIF). Our findings show that specific humoral immune mechanisms are apparently not involved in the spontaneous regression of keratoacanthoma. Cell-mediated immune mechanisms are evidently not responsible for the resolution of the tumor.
Zusammenfassung
Zwölf Patienten mit Keratoakanthomen wurden hinsichtlich immunologischer Faktoren und deren Bedeutung für die Regression der Tumoren untersucht. Die direkte Immunofluorescenz wurde mit Immunglobulinen, Komplement und Fibrin bestimmt. Zusätzlich wurde die indirekte Immunofluorescenz durchgeführt. Benutzt wurden Sera von Patienten mit Pemphigus und Pemphigoid, um die gewebsspezifischen Antigene in der interzellulären Substanz und an der Basalmembran zu untersuchen. Die celluläre Immunität wurde bestimmt a) Formation von E-Rosetten durch T-Lymphocyten und b) Bestimmung des Leukocytenmigrations-Inhibitionsfaktors. Nach unseren Ergebnissen scheint die spezifische humorale immunologische Reaktion bei der spontanen Regression des Keratoakanthoms keine Rolle zu spielen. Offenbar sind auch keine cellulären Immunitätsmechanismen bei der Abheilung dieser Tumoren beteiligt.
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Tosca, A., Varelzidis, A., Avgerinou, G. et al. Immunological study of keratoacanthomas. Arch Dermatol Res 268, 149–155 (1980). https://doi.org/10.1007/BF00403799
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DOI: https://doi.org/10.1007/BF00403799