In vitro examination of cell proliferation in dermatofibroma and in the overlying epidermis
- 1 August 1979
- journal article
- research article
- Published by Springer Nature in Archives of Dermatological Research
- Vol. 266 (1) , 51-57
- https://doi.org/10.1007/bf00412862
Abstract
In nine typical cases of dermatofibroma autoradiographic methods were used to examine the proliferative activity in the tumor and in the overlying epidermis. The number of DNA-synthesizing cells in the dermal nodular lesions was extremely low (0–0.1%). In seven of nine skin lesions acanthosis was to be seen in the overlying epidermis. The quantity of DNA-synthesizing cells in the epidermis overlying the dermatofibroma was not related to the thickness of the epidermis and remained independent, whether the predominant element in the tumor is fibrillar or cellular. In this study we were able to demonstrate the existence of a direct relation between the degree of epidermal proliferation and the distance between the tumor and the epidermis. The duration of DNA-synthesis was constant. Anhand 9 typischer Fälle von Dermatofibromen wurde mittels autoradiographischer Untersuchungen die Proliferationsaktivität im Tumor und in der darüberliegenden Epidermis untersucht. Dabei fanden sich im Tumor nur ganz vereinzelt proliferierende Zellen (0–0,1%). Bei 7 von 9 Tumoren war die darüberliegende Epidermis verbreitert. Die Anzahl der DNA-synthetisierenden Zellen in der Epidermis über dem Tumor war unabhängig von der Dicke der Epidermis und von der Zusammensetzung des Dermatofibroms aus zellulären und bindegewebigen Anteil. Eine direkte Korrelation bestand hingegen zwischen der epidermalen Proliferation und dem Abstand des Tumors von der Epidermis. Die Dauer der DNA-Synthese-Phase blieb dabei konstant.This publication has 24 references indexed in Scilit:
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