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Anticancer Res. 1997 Nov-Dec;17(6B):4151-62.

Proteases and their inhibitors in human brain tumours: a review.

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Department of Neuropathology, Institute of Psychiatry, London, U.K.


Proteases such as matrix metalloproteinases (MMPs), cysteine- and serine-proteinases are capable of degrading extracellular matrix and basement membranes and have been implicated in human brain tumours. MMPs are a homologous family of zinc-dependent proteases. Within this group, attention has been focused on the gelatinases (MMP-2 and MMP-9) which are thought to play an important role in tumour progression. The cysteine proteinases which have received most attention in relation to tumour progression are cathepsin B (CB) and to a lesser extent cathepsin L (CL). Among the serine proteinases, urokinase plasminogen activator and its receptor have been the subject of much investigation. In the present review, evidence from current literature on the possible role or significance of serine- and cysteine-proteinases and MMPs and their inhibitors in human brain tumours is discussed with special reference to gliomas. Although direct evidence is reported for MMPs and serine proteinases to support their role in glioma invasion, much of the evidence for the involvement of cysteine proteinases remains circumstantial.

[Indexed for MEDLINE]

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