Cysteine Cathepsins and Their Extracellular Roles: Shaping the Microenvironment

For a long time, cysteine cathepsins were considered primarily as proteases crucial for nonspecific bulk proteolysis in the endolysosomal system. However, this view has dramatically changed, and cathepsins are now considered key players in many important physiological processes, including in disease...

Full description

Bibliographic Details
Main Authors: Eva Vidak, Urban Javoršek, Matej Vizovišek, Boris Turk
Format: Article
Language:English
Published: MDPI AG 2019-03-01
Series:Cells
Subjects:
Online Access:https://www.mdpi.com/2073-4409/8/3/264
_version_ 1827836678507593728
author Eva Vidak
Urban Javoršek
Matej Vizovišek
Boris Turk
author_facet Eva Vidak
Urban Javoršek
Matej Vizovišek
Boris Turk
author_sort Eva Vidak
collection DOAJ
description For a long time, cysteine cathepsins were considered primarily as proteases crucial for nonspecific bulk proteolysis in the endolysosomal system. However, this view has dramatically changed, and cathepsins are now considered key players in many important physiological processes, including in diseases like cancer, rheumatoid arthritis, and various inflammatory diseases. Cathepsins are emerging as important players in the extracellular space, and the paradigm is shifting from the degrading enzymes to the enzymes that can also specifically modify extracellular proteins. In pathological conditions, the activity of cathepsins is often dysregulated, resulting in their overexpression and secretion into the extracellular space. This is typically observed in cancer and inflammation, and cathepsins are therefore considered valuable diagnostic and therapeutic targets. In particular, the investigation of limited proteolysis by cathepsins in the extracellular space is opening numerous possibilities for future break-through discoveries. In this review, we highlight the most important findings that establish cysteine cathepsins as important players in the extracellular space and discuss their roles that reach beyond processing and degradation of extracellular matrix (ECM) components. In addition, we discuss the recent developments in cathepsin research and the new possibilities that are opening in translational medicine.
first_indexed 2024-03-12T06:31:23Z
format Article
id doaj.art-beefcf65dda94ff5b84f7abdc6077c6e
institution Directory Open Access Journal
issn 2073-4409
language English
last_indexed 2024-03-12T06:31:23Z
publishDate 2019-03-01
publisher MDPI AG
record_format Article
series Cells
spelling doaj.art-beefcf65dda94ff5b84f7abdc6077c6e2023-09-03T01:37:57ZengMDPI AGCells2073-44092019-03-018326410.3390/cells8030264cells8030264Cysteine Cathepsins and Their Extracellular Roles: Shaping the MicroenvironmentEva Vidak0Urban Javoršek1Matej Vizovišek2Boris Turk3Jozef Stefan Institute, Department of Biochemistry and Molecular and Structural Biology, Jamova 39, SI-1000 Ljubljana, SloveniaJozef Stefan Institute, Department of Biochemistry and Molecular and Structural Biology, Jamova 39, SI-1000 Ljubljana, SloveniaJozef Stefan Institute, Department of Biochemistry and Molecular and Structural Biology, Jamova 39, SI-1000 Ljubljana, SloveniaJozef Stefan Institute, Department of Biochemistry and Molecular and Structural Biology, Jamova 39, SI-1000 Ljubljana, SloveniaFor a long time, cysteine cathepsins were considered primarily as proteases crucial for nonspecific bulk proteolysis in the endolysosomal system. However, this view has dramatically changed, and cathepsins are now considered key players in many important physiological processes, including in diseases like cancer, rheumatoid arthritis, and various inflammatory diseases. Cathepsins are emerging as important players in the extracellular space, and the paradigm is shifting from the degrading enzymes to the enzymes that can also specifically modify extracellular proteins. In pathological conditions, the activity of cathepsins is often dysregulated, resulting in their overexpression and secretion into the extracellular space. This is typically observed in cancer and inflammation, and cathepsins are therefore considered valuable diagnostic and therapeutic targets. In particular, the investigation of limited proteolysis by cathepsins in the extracellular space is opening numerous possibilities for future break-through discoveries. In this review, we highlight the most important findings that establish cysteine cathepsins as important players in the extracellular space and discuss their roles that reach beyond processing and degradation of extracellular matrix (ECM) components. In addition, we discuss the recent developments in cathepsin research and the new possibilities that are opening in translational medicine.https://www.mdpi.com/2073-4409/8/3/264cathepsininflammation associated diseasecancerosteoporosisextracellular matrix
spellingShingle Eva Vidak
Urban Javoršek
Matej Vizovišek
Boris Turk
Cysteine Cathepsins and Their Extracellular Roles: Shaping the Microenvironment
Cells
cathepsin
inflammation associated disease
cancer
osteoporosis
extracellular matrix
title Cysteine Cathepsins and Their Extracellular Roles: Shaping the Microenvironment
title_full Cysteine Cathepsins and Their Extracellular Roles: Shaping the Microenvironment
title_fullStr Cysteine Cathepsins and Their Extracellular Roles: Shaping the Microenvironment
title_full_unstemmed Cysteine Cathepsins and Their Extracellular Roles: Shaping the Microenvironment
title_short Cysteine Cathepsins and Their Extracellular Roles: Shaping the Microenvironment
title_sort cysteine cathepsins and their extracellular roles shaping the microenvironment
topic cathepsin
inflammation associated disease
cancer
osteoporosis
extracellular matrix
url https://www.mdpi.com/2073-4409/8/3/264
work_keys_str_mv AT evavidak cysteinecathepsinsandtheirextracellularrolesshapingthemicroenvironment
AT urbanjavorsek cysteinecathepsinsandtheirextracellularrolesshapingthemicroenvironment
AT matejvizovisek cysteinecathepsinsandtheirextracellularrolesshapingthemicroenvironment
AT boristurk cysteinecathepsinsandtheirextracellularrolesshapingthemicroenvironment