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Biol Chem. 1998 Feb;379(2):131-5.

Gene regulation and extracellular functions of procathepsin L.

Author information

1
Department of Biochemistry, Juntendo University School of Medicine, Tokyo, Japan.

Abstract

Cathepsin L, a lysosomal cysteine proteinase, belongs to the papain family. This proteinase is different from the other members of the mammalian papain family cysteine proteinase in the following ways: (i) The cathepsin L gene is activated by a variety of growth factors and activated oncogenes. (ii) Procathepsin L, a precursor form of cathepsin L is secreted from various cells. (iii) The mRNA level of cathepsin L is related to the in vivo metastatic potential of the transformed cells. Thus, the regulation of the cathepsin L gene and the extracellular functions of secreted procathepsin L are tightly coupled. In this review, we describe these two points, which have recently been addressed in our laboratory.

PMID:
9524064
DOI:
10.1515/bchm.1998.379.2.131
[Indexed for MEDLINE]

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