Cited by 433Cytokine Signaling Pathways and InteractionsTGF-β signaling in diseasesGrowth Hormone and Insulin-like Growth Factors

Persistent STAT3 Activation in Colon Cancer Is Associated with Enhanced Cell Proliferation and Tumor Growth

Open access
Corvinus, Florian M., Orth, Carina, Moriggl, Richard, Tsareva, Svetlana A., Wagner, Stefan, Pfitzner, Edith B., Baus, Daniela, Kaufman, Roland +7 more·2005·Neoplasia

Abstract

Colorectal carcinoma (CRC) is a major cause of morbidity and mortality in Western countries. It has so far been molecularly defined mainly by alterations of the Wnt pathway. We show here for the first time that aberrant activities of the signal transducer and activator of transcription STAT3 actively contribute to this malignancy and, thus, are a potential therapeutic target for CRC. Constitutive STAT3 activity was found to be abundant in dedifferentiated cancer cells and infiltrating lymphocytes of CRC samples, but not in non-neoplastic colon epithelium. Cell lines derived from malignant colorectal tumors lost persistent STAT3 activity in culture. However, implantation of colon carcinoma cells into nude mice resulted in restoration of STAT3 activity, suggesting a role of an extracellular stimulus within the tumor microenvironment as a trigger for STAT activation. STAT3 activity in CRC cells triggered through interleukin-6 or through a constitutively active STAT3 mutant promoted cancer cell multiplication, whereas STAT3 inhibition through a dominant-negative variant impaired IL-6-driven proliferation. Blockade of STAT3 activation in CRC-derived xenograft tumors slowed down their development, arguing for a contribution of STAT3 to colorectal tumor growth.

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Registry

Crossref · 10.1593/neo.04571

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  • IL-6 via STAT-3 promotes tumor cell proliferation in many cancers, including oral squamous cell carcinoma via DNA hypomethylation, prostate cancer through androgen receptor activation, and colon cancer.

    “IL-6 via STAT-3 has been shown to promote tumor cell proliferation in many cancers, including oral squamous cell carcinoma via DNA hypomethylation (31), prostate cancer through androgen receptor activation (32), and colon cancer (33).”
  • Constitutive STAT3 signaling has been implicated in aberrant cell growth and proliferation in many cancers, including head and neck squamous cell carcinoma, colorectal carcinoma, melanoma, glioblastoma multiforme, multiple myeloma, non-small cell lung cancer, and others.

    “Constitutive STAT3 signaling has been implicated in aberrant cell growth and proliferation in many cancers, including head and neck squamous cell carcinoma, colorectal carcinoma, melanoma, glioblastoma multiforme, multiple myeloma, non-small cell lung cancer, and others.58,69–73”

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Authors
Corvinus, F. M., Orth, C., Moriggl, R., Tsareva, S. A., Wagner, S., Pfitzner, E. B., Baus, D., Kaufman, R., Huber, L. A., Zatloukal, K., Beug, H., Öhlschläger, P., Schütz, A., Halbhuber, K.-J., & Friedrich, K.
Affiliations
  • Friedrich Schiller University Jena (DE)
  • Research Institute of Molecular Pathology (AT)
  • Georg Speyer Haus (DE)
  • Universität Innsbruck (AT)
  • University of Graz (AT)
  • Leipzig University (DE)
Corresponding author
Friedrich, Karlheinz
Venue
Neoplasia
Publisher
Elsevier BV
Published
2005-06
Volume
7
Issue
6
Pages
545-555
ISSN
1476-5586 (ISSN-L)
OpenAlex
W2014737409
Cited by
427
References
59
Citations by year
2026: 9 · 2025: 15 · 2024: 27 · 2023: 21 · 2022: 28 · 2021: 40 · 2020: 29 · 2019: 22 · 2018: 15 · 2017: 27 · 2016: 24 · 2015: 30 · 2014: 24 · 2013: 30 · 2012: 17
FWCI
4.53
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)
  • Publication Server of Goethe University Frankfurt am Main (Goethe University Frankfurt) (submittedVersion, cc-by-nc-nd)
Topics
  • Health Sciences › Medicine › Oncology › Cytokine Signaling Pathways and Interactions
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › TGF-β signaling in diseases
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Growth Hormone and Insulin-like Growth Factors
Keywords
STAT3, colorectal cancer, constitutive STAT3 activation, interleukin-6, cell proliferation, tumor growth, tumor microenvironment, tumor xenografts, dominant-negative STAT3, therapeutic target, infiltrating lymphocytes
MeSH terms
Animals, Biopsy, Cell Differentiation, Colonic Neoplasms, DNA, Genes, Dominant, Humans, Immunohistochemistry, Lymphocytes, Mice, Nude, Neoplasm Transplantation, Retroviridae, Time Factors, Blotting, Western, Colorectal Neoplasms, Signal Transduction, Interleukin-6, Cell Line, Tumor, Cell Proliferation, STAT3 Transcription Factor, Mice

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