Cited by 404Cell death mechanisms and regulationAutophagy in Disease and TherapyProtease and Inhibitor Mechanisms

Cysteine Cathepsins Trigger Caspase-dependent Cell Death through Cleavage of Bid and Antiapoptotic Bcl-2 Homologues

Open access
Droga-Mazovec, Gabriela, Bojič, Lea, Petelin, Ana, Ivanova, Saška, Romih, Rok, Repnik, Urska, Salvesen, Guy S., Stoka, Veronika +2 more·2008·Journal of Biological Chemistry

Abstract

As a model for defining the role of lysosomal cathepsins in apoptosis, we characterized the action of the lysosomotropic agent LeuLeuOMe using distinct cellular models. LeuLeuOMe induces lysosomal membrane permeabilization, resulting in release of lysosomal cathepsins that cleave the proapoptotic Bcl-2 family member Bid and degrade the antiapoptotic member Bcl-2, Bcl-xL, or Mcl-1. The papain-like cysteine protease inhibitor E-64d largely prevented apoptosis, Bid cleavage, and Bcl-2/Bcl-xL/Mcl-1 degradation. The pancaspase inhibitor N-benzyloxycarbonyl-Val-Ala-Asp(OMe)fluoromethyl ketone failed to prevent Bid cleavage and degradation of anti-apoptotic Bcl-2 homologues but substantially decreased cell death, suggesting that cathepsin-mediated apoptosis in these cellular models mostly follows a caspase-dependent pathway. Moreover, in vitro experiments showed that one or more of the cysteine cathepsins B, L, S, K, and H could cleave Bcl-2, Bcl-xL, Mcl-1, Bak, and BimEL, whereas no Bax cleavage was observed. On the basis of inhibitor studies, we demonstrate that lysosomal disruption triggered by LeuLeuOMe occurs before mitochondrial damage. We propose that degradation of anti-apoptotic Bcl-2 family members by lysosomal cathepsins synergizes with cathepsin-mediated activation of Bid to trigger a mitochondrial pathway to apoptosis. Moreover, XIAP (X-chromosome-linked inhibitor of apoptosis) was also found to be a target of cysteine cathepsins, suggesting that cathepsins can mediate caspase-dependent apoptosis also downstream of mitochondria.

Integrity signals

Registry

Crossref · 10.1074/jbc.m802513200

Cites

69 of 69 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

We couldn’t retrieve this paper’s full text, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Cytosolic cathepsins usually precipitate RCD by proteolytic activation or inactivation of substrates including BID, BAX, anti-apoptotic BCL2 family members, and XIAP, engaging feed-forward amplification involving MOMP and caspases.

    “Cytosolic cathepsins usually precipitate RCD by catalyzing the proteolytic activation or inactivation of several substrates, including BID, BAX, anti-apoptotic BCL2 family members, and XIAP [776–778], hence engaging a feed-forward amplification circuitry of the lethal cascade involving MOMP and caspases.”

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Droga-Mazovec, G., Bojič, L., Petelin, A., Ivanova, S., Romih, R., Repnik, U., Salvesen, G. S., Stoka, V., Turk, V., & Turk, B.
Affiliations
  • Jožef Stefan Institute (SI)
  • University of Ljubljana (SI)
  • Sanford Burnham Prebys Medical Discovery Institute (US)
Corresponding author
Turk, Boris
Venue
Journal of Biological Chemistry
Publisher
Elsevier BV
Published
2008-07
Volume
283
Issue
27
Pages
19140-19150
ISSN
0021-9258 (ISSN-L)
OpenAlex
W2006193439
Cited by
399
References
67
Citations by year
2026: 13 · 2025: 17 · 2024: 21 · 2023: 21 · 2022: 22 · 2021: 22 · 2020: 23 · 2019: 23 · 2018: 26 · 2017: 22 · 2016: 22 · 2015: 20 · 2014: 24 · 2013: 27 · 2012: 26
FWCI
9.59
Type
journal article
Language
en
Open access
Locations
  • Journal of Biological Chemistry (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Cell death mechanisms and regulation
  • Health Sciences › Medicine › Epidemiology › Autophagy in Disease and Therapy
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Protease and Inhibitor Mechanisms
Keywords
cysteine cathepsins, lysosomal cathepsins, apoptosis, Bid cleavage, Bcl-2 family proteins, Bcl-xL, Mcl-1, Bax, BimEL, Bak, lysosomal membrane permeabilization, E64d, XIAP, mitochondrial apoptosis, caspase-dependent cell death, lysosomal disruption
MeSH terms
Bcl-2-Like Protein 11, Cathepsins, Humans, Lysosomes, Membrane Proteins, Mitochondria, Protease Inhibitors, Proto-Oncogene Proteins, Apoptosis, Caco-2 Cells, Proto-Oncogene Proteins c-bcl-2, bcl-2 Homologous Antagonist-Killer Protein, Apoptosis Regulatory Proteins, bcl-X Protein, BH3 Interacting Domain Death Agonist Protein, X-Linked Inhibitor of Apoptosis Protein, Myeloid Cell Leukemia Sequence 1 Protein

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review