The distribution and some properties of collagenolytic cathepsin in the bovine eye
- 1 January 1978
- journal article
- research article
- Published by Springer Nature in Albrecht von Graefes Archiv für Ophthalmologie
- Vol. 206 (3) , 163-168
- https://doi.org/10.1007/bf00414742
Abstract
In vitro degradation of insoluble vitreous collagen by the action of collagenolytic cathepsin was studied biochemically. Among bovine ocular tissues, the uvea and the retina showed relatively high collagenolytic activity. The ciliary body revealed the highest specific activities of both cathepsin B and collagenolytic cathepsin. Leupeptin and p-chloromercuribenzoate inhibited both cathepsin B and collagenolytic cathepsin in the ciliary body lysosomes. Pepstatin inhibited cathepsin D, but did not affect cathepsin B and collagenolytic cathepsin. It is suggested that distribution and properties of collagenolytic cathepsin are similar to those of cathepsin B in the bovine eye. Der in vitro Abbau des unlöslichen Glaskörperkollagen durch kollagenolytisches Cathepsin wurde biochemisch untersucht. Seine Aktivität war im Rinderauge besonders in Uvea und in Netzhaut relativ hoch. Im Glaskörper wurden die höchsten Aktivitäten sowohl des Cathepsin B als auch des kollagenolytischen Cathepsins gefunden. Leupeptin und p-Chloromercuribenzoat inaktivierten beide Substanzen in den Ciliarkörperlysosomen. Pepstatin wirkte als Inhibitor des Cathepsin D, beeinflußte aber nicht die Wirksamkeit des Cathepsin B und des kollagenolytischen Cathepsins. Verteilung und Eigenschaften des kollagenolytischen Cathepsin scheinen im Rinderauge ähnlich zu sein wie die des Cathepsin B.This publication has 16 references indexed in Scilit:
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