Cited by 122Sirtuins and Resveratrol in MedicineCell death mechanisms and regulationProtease and Inhibitor Mechanisms

Resveratrol induces cell death in colorectal cancer cells by a novel pathway involving lysosomal cathepsin D

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Trincheri, N. F., Nicotra, G., Follo, C., Castino, R., Isidoro, C.·2006·Carcinogenesis

Abstract

In human colorectal cancer cells, the polyphenol resveratrol (RV) activated the caspase-dependent intrinsic pathway of apoptosis. This effect was not mediated via estrogen receptors. Pepstatin A, an inhibitor of lysosomal cathepsin D (CD), not (2S,3S)-trans-epoxysuccinyl-L-leucylamido-3-methylbutane ethyl ester, an inhibitor of cathepsins B and L, prevented RV cytotoxicity. Similar protection was attained by small interference RNA-mediated knockdown of CD protein expression. RV promoted the accumulation of mature CD, induced lysosome leakage and increased cytosolic immunoreactivity of CD. Inhibition of CD or its post-transcriptional down-regulation precluded Bax oligomerization, permeabilization of mitochondrial membrane, cytosolic translocation of cytochrome c, caspase 3 activation and terminal deoxinucleotidyl transferase-mediated dUTP-biotin nick end labeling positivity occurring in RV-treated cells. The present study identifies the lysosome as a novel target of RV activity and demonstrates a hierarchy of the proteolytic pathways involved in its cytotoxic mechanism in which the lysosomal CD acts upstream of the cytosolic caspase activation. Our data indicate that metabolic, pharmacologic or genetic conditions affecting CD expression and/or activity could reflect on the sensitivity of cancer cells to RV.

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Crossref · 10.1093/carcin/bgl223

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Authors
Trincheri, N. F., Nicotra, G., Follo, C., Castino, R., & Isidoro, C.
Affiliations
Università degli Studi del Piemonte Orientale “Amedeo Avogadro” (IT)
Corresponding author
Isidoro, C.
Venue
Carcinogenesis
Published
2006-11-27
Volume
28
Issue
5
Pages
922-931
ISSN
  • 0143-3334 (ISSN-L)
  • 1460-2180
OpenAlex
W2116178196
Cited by
122
References
51
Citations by year
2026: 1 · 2025: 1 · 2024: 2 · 2023: 3 · 2022: 7 · 2021: 5 · 2020: 6 · 2019: 7 · 2018: 8 · 2017: 7 · 2016: 8 · 2015: 7 · 2014: 5 · 2013: 12 · 2012: 10
FWCI
2.73
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Carcinogenesis (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Geriatrics and Gerontology › Sirtuins and Resveratrol in Medicine
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Cell death mechanisms and regulation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Protease and Inhibitor Mechanisms
Keywords
resveratrol, colorectal cancer, cathepsin D, lysosomal cathepsins, apoptosis, caspase-3 activation, Bax oligomerization, mitochondrial membrane permeabilization, cytochrome c release, lysosomal proteolysis, pepstatin A
MeSH terms
Resveratrol, Cathepsin D, Cathepsins, Cell Line, Cysteine Endopeptidases, Cytosol, Dose-Response Relationship, Drug, Humans, Lysosomes, Stilbenes, Time Factors, Colorectal Neoplasms, Cell Death, HT29 Cells, Cytochromes c, Cathepsin L, Caspase Inhibitors

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