Cited by 2,155Cytokine Signaling Pathways and InteractionsNF-κB Signaling PathwaysInflammatory Bowel Disease

IL-6 and Stat3 are required for survival of intestinal epithelial cells and development of colitis-associated cancer

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Grivennikov, Sergei, Karin, Eliad, Terzic, Janos, Mucida, Daniel, Yu, Guann-Yi, Vallabhapurapu, Sivakumar, Scheller, Jürgen, Rose-John, Stefan +3 more·2009·Cancer Cell

Abstract

Colitis-associated cancer (CAC) is the most serious complication of inflammatory bowel disease. Proinflammatory cytokines have been suggested to regulate preneoplastic growth during CAC tumorigenesis. Interleukin 6 (IL-6) is a multifunctional NF-kappaB-regulated cytokine that acts on epithelial and immune cells. Using genetic tools, we now demonstrate that IL-6 is a critical tumor promoter during early CAC tumorigenesis. In addition to enhancing proliferation of tumor-initiating cells, IL-6 produced by lamina propria myeloid cells protects normal and premalignant intestinal epithelial cells (IECs) from apoptosis. The proliferative and survival effects of IL-6 are largely mediated by the transcription factor Stat3, whose IEC-specific ablation has profound impact on CAC tumorigenesis. Thus, the NF-kappaB-IL-6-Stat3 cascade is an important regulator of the proliferation and survival of tumor-initiating IECs.

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Crossref · 10.1016/j.ccr.2009.01.001

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  • IL-6 binds to gp130 on target cells to activate STAT3 in tumour cells and tumour-associated inflammatory cells.

    “IL-6 binds to gp130 on target cells to activate the signal transducer and activator of transcription 3 [STAT3] in tumour cells and tumour-associated inflammatory cells 12, 15.”

    From PU.1-driven Th9 Cells Promote Colorectal Cancer in Experimental Colitis Models Through Il-6 Effects in Intestinal Epithelial Cells (2022) · cites this paper as [12]

    The Introduction (page not available) says IL-6 binds IL-6R, which interacts with gp130 to activate downstream STAT3; it does not say IL-6 binds gp130 directly. The Significance section (page not available) identifies STAT3 as mediating IL-6’s effects on pre-malignant intestinal epithelial cells, but describes inflammatory myeloid cells as IL-6 producers, not as cells in which IL-6 activates STAT3. (LLM, conf=0.87)

    Experimental — accuracy not yet measured
  • IL-6 has been previously identified as a key cytokine that directly induces tumour growth in CRC via STAT3 activation in IECs.

    “IL-6 has been previously identified as a key cytokine that directly induces tumuor growth in CRC via STAT3 activation in IECs.12,15,46,47.”

    From PU.1-driven Th9 Cells Promote Colorectal Cancer in Experimental Colitis Models Through Il-6 Effects in Intestinal Epithelial Cells (2022) · cites this paper as [12]

    The Introduction and Discussion report that IL-6 promotes tumor growth through STAT3 activation in intestinal epithelial cells. The experiments establish this in a mouse model of colitis-associated cancer (CAC), not colorectal cancer (CRC) generally, so the claim extends the finding beyond the studied setting. (LLM, conf=0.85)

    Experimental — accuracy not yet measured
  • STAT3 is involved in inflammation-associated carcinogenesis, suppression of the antitumor immune response, and maintenance of cancer stem cells.

    “STAT3 is also involved in inflammation-associated carcinogenesis, suppression of the antitumor immune response, and maintenance of cancer stem cells.”

    From Critical analysis of the potential for targeting STAT3 in human malignancy (2013) · cites this paper as [94]

    The Discussion (page not provided) reports that STAT3 ablation in intestinal epithelial cells reduced tumor formation and growth in a mouse model of colitis-associated cancer, supporting its role in inflammation-associated carcinogenesis. The passages do not establish that STAT3 suppresses the antitumor immune response or maintains cancer stem cells; searches for those points found no supporting passage. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • IL-6R evokes a myriad of responses, including metabolic actions, through STAT3.

    “IL-6R evokes a myriad of responses, including metabolic actions, through STAT3.31,32,33,34”

    From Dynamic IL-6R/STAT3 signaling leads to heterogeneity of metabolic phenotype in pancreatic ductal adenocarcinoma cells (2024) · cites this paper as [33]

    The Discussion (page unavailable) says IL-6 binding to its gp130-associated receptor activates the JAK1/2–STAT3 pathway and identifies STAT3 as a critical effector in colitis-associated cancer. It discusses effects on intestinal epithelial cell survival and proliferation, but does not establish the claimed metabolic actions through STAT3. (LLM, conf=0.87)

    Experimental — accuracy not yet measured
  • IL-6 is a key factor in inflammation, autoimmunity and cancer, with its effect mainly exerted through the IL-6-STAT3 pathway.

    “IL-6 is also a key factor in inflammation, autoimmunity and cancer, with its effect mainly exerted through the IL-6–signal transducer and activator of transcription 3 (STAT3) pathway (18–26, 61–65).”

    From IL-6 in inflammation, autoimmunity and cancer (2021) · cites this paper as [18]

    The Introduction describes IL-6 as important in chronic inflammation, T-cell-dependent autoimmune disorders and cancer. The Discussion identifies STAT3 as a major IL-6 effector in colitis-associated cancer, but also lists two other IL-6 signaling pathways. It does not establish that IL-6 acts mainly through STAT3 across all three settings. (LLM, conf=0.85)

    Experimental — accuracy not yet measured

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Cites

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Authors
Grivennikov, S., Karin, E., Terzic, J., Mucida, D., Yu, G.-Y., Vallabhapurapu, S., Scheller, J., Rose-John, S., Cheroutre, H., Eckmann, L., & Karin, M.
Affiliations
  • University of California San Diego (US)
  • La Jolla Institute for Immunology (US)
  • Christian-Albrechts-Universität zu Kiel (DE)
Corresponding author
Karin, Michael
Venue
Cancer Cell
Publisher
Elsevier BV
Published
2009-02
Volume
15
Issue
2
Pages
103-113
ISSN
1535-6108 (ISSN-L)
OpenAlex
W2082626794
Cited by
2,155
References
7
Citations by year
2026: 90 · 2025: 77 · 2024: 111 · 2023: 108 · 2022: 115 · 2021: 138 · 2020: 128 · 2019: 140 · 2018: 139 · 2017: 139 · 2016: 135 · 2015: 153 · 2014: 128 · 2013: 162 · 2012: 124
FWCI
64.85
Type
journal article
Language
en
Open access
Locations
  • Cancer Cell (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • American Cancer Society
  • Crohn's and Colitis Foundation of America (1762)
  • American Physicians Fellowship for Medicine in Israel
  • Fulbright Association
  • Deutsche Forschungsgemeinschaft (SFB415)
  • National Institutes of Health
  • EMBO
Topics
  • Health Sciences › Medicine › Oncology › Cytokine Signaling Pathways and Interactions
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › NF-κB Signaling Pathways
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Inflammatory Bowel Disease
Keywords
interleukin-6, STAT3, colitis-associated colorectal cancer, inflammatory bowel disease, intestinal epithelial cells, apoptosis, cancer stem cells, NF-κB signaling, tumor promotion, cell proliferation
MeSH terms
Animals, Bone Marrow Cells, Cell Survival, Colitis, Ulcerative, Epithelial Cells, Gene Expression Regulation, Humans, Intestinal Mucosa, Mice, Inbred C57BL, Neoplasms, Tumor Necrosis Factor-alpha, Signal Transduction, Interleukin-6, NF-kappa B, Mice, Knockout, Cell Proliferation, STAT3 Transcription Factor, Mice

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