Cited by 99Protease and Inhibitor MechanismsColorectal Cancer Treatments and StudiesHER2/EGFR in Cancer Research

Chemotherapy-induced activation of ADAM-17: a novel mechanism of drug resistance in colorectal cancer

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Kyula, Joan N., Van Schaeybroeck, Sandra, Doherty, Joanne, Fenning, Catherine S., Longley, Daniel B., Johnston, Patrick G.·2010·Clinical Cancer Research

Published version of a preprint

Abstract

Purpose: We have shown previously that exposure to anticancer drugs can trigger the activation of human epidermal receptor survival pathways in colorectal cancer (CRC). In this study, we examined the role of ADAMs (a disintegrin and metalloproteinases) and soluble growth factors in this acute drug resistance mechanism. Experimental Design: In vitro and in vivo models of CRC were assessed. ADAM-17 activity was measured using a fluorometric assay. Ligand shedding was assessed by ELISA or Western blotting. Apoptosis was assessed by flow cytometry and Western blotting. Results: Chemotherapy (5-fluorouracil) treatment resulted in acute increases in transforming growth factor-α, amphiregulin, and heregulin ligand shedding in vitro and in vivo that correlated with significantly increased ADAM-17 activity. Small interfering RNA–mediated silencing and pharmacologic inhibition confirmed that ADAM-17 was the principal ADAM involved in this prosurvival response. Furthermore, overexpression of ADAM-17 significantly decreased the effect of chemotherapy on tumor growth and apoptosis. Mechanistically, we found that ADAM-17 not only regulated phosphorylation of human epidermal receptors but also increased the activity of a number of other growth factor receptors, such as insulin-like growth factor-I receptor and vascular endothelial growth factor receptor. Conclusions: Chemotherapy acutely activates ADAM-17, which results in growth factor shedding, growth factor receptor activation, and drug resistance in CRC tumors. Thus, pharmacologic inhibition of ADAM-17 in conjunction with chemotherapy may have therapeutic potential for the treatment of CRC. Clin Cancer Res; 16(13); 3378–89. ©2010 AACR.

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Authors
Kyula, J. N., Van Schaeybroeck, S., Doherty, J., Fenning, C. S., Longley, D. B., & Johnston, P. G.
Affiliations
  • Queen's University Belfast (GB)
  • Authors' Affiliation: Drug Resistance Group, Centre for Cancer Research and Cell Biology, Queen's University Belfast, Belfast, Northern Ireland
Corresponding author
Johnston, Patrick G.
Venue
Clinical Cancer Research
Published
2010-06-30
Volume
16
Issue
13
Pages
3378-3389
ISSN
  • 1078-0432 (ISSN-L)
  • 1557-3265
OpenAlex
W2021920896
Cited by
99
References
34
Citations by year
2026: 3 · 2024: 6 · 2023: 5 · 2022: 2 · 2021: 8 · 2020: 10 · 2019: 2 · 2018: 9 · 2017: 6 · 2016: 7 · 2015: 7 · 2014: 6 · 2013: 7 · 2012: 13
FWCI
2.82
Type
journal article
Language
en
Open access
Locations
  • Clinical Cancer Research (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • Research Portal (Queen's University Belfast) (submittedVersion)
Funders
  • GlaxoSmithKline
  • Sanofi
  • Cancer Research UK (A7261, A5862)
  • National Cancer Institute
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Protease and Inhibitor Mechanisms
  • Health Sciences › Medicine › Oncology › Colorectal Cancer Treatments and Studies
  • Health Sciences › Medicine › Oncology › HER2/EGFR in Cancer Research
Keywords
ADAM17, colorectal cancer, chemoresistance, 5-fluorouracil, transforming growth factor-alpha, amphiregulin, neuregulin-1, epidermal growth factor receptor, IGF-1 receptor, vascular endothelial growth factor receptor, apoptosis
MeSH terms
ADAM17 Protein, Animals, Antineoplastic Agents, Female, Fluorouracil, Humans, Ligands, Mice, Inbred BALB C, Neoplasm Transplantation, Transfection, Colorectal Neoplasms, Mice, SCID, Apoptosis, Drug Resistance, Neoplasm, Cell Line, Tumor, Cell Proliferation, Mice, ADAM Proteins, ErbB Receptors

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