1996
DOI: 10.1111/j.1365-2230.1996.tb00094.x
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Reactive perforating collagenosis-transepidermal elimination of type IV collagen

Abstract: Summary Reactive perforating collagenosis (RPC) is a rare skin disorder characterized by reddish papules with a central keratotic plug which appear mainly on the extensor aspects of the limbs. An idiopathic or classical variant has been delineated from an acquired one which occurs in diabetes mellitus and renal failure. Histopathological examination of the lesions shows transepidermal elimination of abnormally staining bundles of collagen. To clarify the origin of this collagenous material we performed an immu… Show more

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Cited by 35 publications
(28 citation statements)
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“…Why the histologically altered, but ultrastructurally intact, collagen bundles are found in vertical continuation in transepithelial channel formation remains unclear. 4,14,17 In this respect, current investigations look at the significance of matrix-degrading metalloproteins. Their assumed influence on transepithelial channel formation by loosening interkeratinocyte bonds, disruption of the basement membrane, and detaching of collagen fibers is supported by increased levels after epidermal injury (eg, scratching) due to diabetic metabolism or hypoxic conditions.…”
Section: Discussionmentioning
confidence: 99%
“…Why the histologically altered, but ultrastructurally intact, collagen bundles are found in vertical continuation in transepithelial channel formation remains unclear. 4,14,17 In this respect, current investigations look at the significance of matrix-degrading metalloproteins. Their assumed influence on transepithelial channel formation by loosening interkeratinocyte bonds, disruption of the basement membrane, and detaching of collagen fibers is supported by increased levels after epidermal injury (eg, scratching) due to diabetic metabolism or hypoxic conditions.…”
Section: Discussionmentioning
confidence: 99%
“…W bardziej szczegółowych badaniach immunohistochemicznych Herzinger i wsp. [27] wykazali, że zmienione włókna kolagenowe mogą pochodzić z błony podstawnej, natomiast Kawakami i wsp. [28] nadali znaczenie nadekspresji TGF B3 wokół charakterystycznych zagłębień w naskórku o kształcie filiżanki, co miałoby wpływać na transepidermalną eliminację kolagenu, fibroblastów i komórek zapalnych.…”
Section: Patogeneza I Obraz Histopatologicznyunclassified
“…Letztere tritt zumeist bei Patienten mit Diabetes mellitus und/oder Nierenerkrankungen auf [7]. Aber auch zu anderen internistischen Erkrankungen wie Hyper urikämie, Lebererkrankungen, Hypothyreoidismus, Hyperparathyreoidismus, Malignomen und Lungenfibrose wurden Assoziationen beschrieben [8,9,10]. Es ist -anders als bei der infantilen Form -keine familiäre Häufung bekannt.…”
Section: Diskussionunclassified
“…Der fest haftende Hornpfropf besteht aus Keratin, Zelldebris und Kollagenresten. Herzinger et al [10] konnten Kollagen Typ IV und VII nachweisen, typische Bestandteile der Basalmembran. Die Kollagendegeneration lässt sich nur histochemisch feststellen, die Ultrastruktur bleibt intakt [11].…”
Section: Diskussionunclassified
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