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Localisation of gelatinase activity in epidermal hoof lamellae by in situ zymography

Localisation of gelatinase activity in epidermal hoof lamellae by in situ zymography In situ gelatin zymography is a technique, which utilises a gelatin-based emulsion overlay to detect and, more importantly, localise the gelatinase activity in underlying tissue. Gelatinase A (matrix metalloproteinase-2 (MMP-2)) and gelatinase B (matrix metalloproteinase-9 (MMP-9)) are present in equine hoof homogenates and supernatants from cultured hoof explants by SDS-PAGE gelatin zymography, and it has been assumed that the enzymes are derived solely from matrix and epithelia and not from other sources such as leucocytes. Using in situ zymography, gelatinases are shown to be localised within the equine epidermal hoof lamellae and, more specifically, are apparently produced by epidermal basal and/or parabasal cells. The pattern of expression correlates with that expected based on the progression of pathological changes observed during the onset of laminitis, thus providing further evidence that laminitis pathology probably arises as a result of inadequate local MMP regulation. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Histochemistry and Cell Biology Springer Journals

Localisation of gelatinase activity in epidermal hoof lamellae by in situ zymography

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References (34)

Publisher
Springer Journals
Copyright
Copyright © 1998 by Springer-Verlag Berlin Heidelberg
Subject
Legacy
ISSN
0948-6143
eISSN
1432-119X
DOI
10.1007/s004180050315
Publisher site
See Article on Publisher Site

Abstract

In situ gelatin zymography is a technique, which utilises a gelatin-based emulsion overlay to detect and, more importantly, localise the gelatinase activity in underlying tissue. Gelatinase A (matrix metalloproteinase-2 (MMP-2)) and gelatinase B (matrix metalloproteinase-9 (MMP-9)) are present in equine hoof homogenates and supernatants from cultured hoof explants by SDS-PAGE gelatin zymography, and it has been assumed that the enzymes are derived solely from matrix and epithelia and not from other sources such as leucocytes. Using in situ zymography, gelatinases are shown to be localised within the equine epidermal hoof lamellae and, more specifically, are apparently produced by epidermal basal and/or parabasal cells. The pattern of expression correlates with that expected based on the progression of pathological changes observed during the onset of laminitis, thus providing further evidence that laminitis pathology probably arises as a result of inadequate local MMP regulation.

Journal

Histochemistry and Cell BiologySpringer Journals

Published: Oct 1, 1998

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