Cited by 290TGF-β signaling in diseasesMechanisms of cancer metastasisCancer Cells and Metastasis

A Specific Inhibitor of TGF-β Receptor Kinase, SB-431542, as a Potent Antitumor Agent for Human Cancers

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Halder, Sunil K., Beauchamp, R. Daniel, Datta, Pran K.·2005·Neoplasia

Abstract

Small molecule inhibitors of signaling pathways have proven to be extremely useful for the development of therapeutic strategies for human cancers. Blocking the tumor-promoting effects of transforming growth factor-beta (TGF-beta) in advanced stage carcinogenesis provides a potentially interesting drug target for therapeutic intervention. Although very few TGF-beta receptor kinase inhibitors (TRKI) are now emerging in preclinical studies, nothing is known about how these inhibitors might regulate the tumor-suppressive or tumor-promoting effects of TGF-beta, or when these inhibitors might be useful for treatment during cancer progression. We have investigated the potential of TRKI in new therapeutic approaches in preclinical models. Here, we demonstrate that the TRKI, SB-431542, inhibits TGF-beta-induced transcription, gene expression, apoptosis, and growth suppression. We have observed that SB-431542 attenuates the tumor-promoting effects of TGF-beta, including TGF-beta-induced EMT, cell motility, migration and invasion, and vascular endothelial growth factor secretion in human cancer cell lines. Interestingly, SB-431542 induces anchorage independent growth of cells that are growth-inhibited by TGF-beta, whereas it reduces colony formation by cells that are growth-promoted by TGF-beta. However, SB-431542 has no effect on a cell line that failed to respond to TGF-beta. This represents a novel potential application of these inhibitors as therapeutic agents for human cancers with the goal of blocking tumor invasion, angiogenesis, and metastasis, when tumors are refractory to TGF-beta-induced tumor-suppressor functions but responsive to tumor-promoting effects of TGF-beta.

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Authors
Halder, S. K., Beauchamp, R. D., & Datta, P. K.
Affiliations
Vanderbilt University (US)
Corresponding author
Datta, Pran K.
Venue
Neoplasia
Publisher
Elsevier BV
Published
2005-05
Volume
7
Issue
5
Pages
509-521
ISSN
1476-5586 (ISSN-L)
OpenAlex
W1990842005
Cited by
288
References
37
Citations by year
2026: 10 · 2025: 18 · 2024: 13 · 2023: 9 · 2022: 13 · 2021: 8 · 2020: 16 · 2019: 18 · 2018: 14 · 2017: 11 · 2016: 14 · 2015: 18 · 2014: 18 · 2013: 16 · 2012: 16
FWCI
4.14
Type
journal article
Language
en
Open access
Locations
  • Neoplasia (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Cancer Research Institute
  • GlaxoSmithKline
  • Virginia Marine Resources Commission
  • National Cancer Institute (R01CA095195, 5P50CA90949, R01CA95195, R01CA069457, CA-69457, P50CA090949)
  • National Institute of Diabetes and Digestive and Kidney Diseases (R01DK52334, R01DK052334)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › TGF-β signaling in diseases
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mechanisms of cancer metastasis
  • Health Sciences › Medicine › Oncology › Cancer Cells and Metastasis
Keywords
SB431542, TGF-beta, anticancer agents, epithelial-mesenchymal transition, tumor invasion, angiogenesis, metastasis, apoptosis, anchorage-independent growth, colony formation, cell motility, vascular endothelial growth factor, TGF-beta signaling
MeSH terms
Receptor, Transforming Growth Factor-beta Type I, Animals, Antineoplastic Agents, Benzamides, Cell Adhesion, Cell Line, Cell Movement, Dioxoles, Enzyme Inhibitors, Humans, Mink, Models, Biological, Neoplasm Invasiveness, Neoplasm Metastasis, Neovascularization, Pathologic, Time Factors, Transcription, Genetic, Blotting, Western, Gene Expression Regulation, Neoplastic, Transforming Growth Factor beta, Apoptosis, Protein Serine-Threonine Kinases, Receptors, Transforming Growth Factor beta, Activin Receptors, Type I, Vascular Endothelial Growth Factor A, Cell Line, Tumor, Immunoprecipitation, Mice, Rats

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