Cited by 524Cytokine Signaling Pathways and InteractionsPsoriasis: Treatment and PathogenesisRheumatoid Arthritis Research and Therapies

Targeting IL-6 trans-signalling: past, present and future prospects

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Rose-John, Stefan, Jenkins, Brendan J., Garbers, Christoph, Moll, Jens M., Scheller, Jürgen·2023·Nature Reviews Immunology

Abstract

Interleukin-6 (IL-6) is a key immunomodulatory cytokine that affects the pathogenesis of diverse diseases, including autoimmune diseases, chronic inflammatory conditions and cancer. Classical IL-6 signalling involves the binding of IL-6 to the membrane-bound IL-6 receptor α-subunit (hereafter termed ‘mIL-6R’) and glycoprotein 130 (gp130) signal-transducing subunit. By contrast, in IL-6 trans-signalling, complexes of IL-6 and the soluble form of IL-6 receptor (sIL-6R) signal via membrane-bound gp130. A third mode of IL-6 signalling — known as cluster signalling — involves preformed complexes of membrane-bound IL-6–mIL-6R on one cell activating gp130 subunits on target cells. Antibodies and small molecules have been developed that block all three forms of IL-6 signalling, but in the past decade, IL-6 trans-signalling has emerged as the predominant pathway by which IL-6 promotes disease pathogenesis. The first selective inhibitor of IL-6 trans-signalling, sgp130, has shown therapeutic potential in various preclinical models of disease and olamkicept, a sgp130Fc variant, had promising results in phase II clinical studies for inflammatory bowel disease. Technological developments have already led to next-generation sgp130 variants with increased affinity and selectivity towards IL-6 trans-signalling, along with indirect strategies to block IL-6 trans-signalling. Here, we summarize our current understanding of the biological outcomes of IL-6-mediated signalling and the potential for targeting this pathway in the clinic. This Review details the discovery of the interleukin-6 (IL-6) trans-signalling pathway and the subsequent development of biologics that specifically inhibit this pathway. Emerging evidence suggests that specifically targeting IL-6 trans-signalling can reduce pathological disease-promoting activities of IL-6 without blocking the protective actions of IL-6 in infection and tissue repair.

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Crossref · 10.1038/s41577-023-00856-y

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  • In MM cells, the JAK/STAT3 pathway is triggered by cytokines from the gp130 receptor family, such as IL-6, LIF, and OSM.

    “In MM cells, the JAK/STAT3 pathway is triggered by cytokines from the gp130 receptor family, such as IL-6, leukemia inhibitory factor (LIF), and oncostatin-M (OSM).”

    From Multiple myeloma: signaling pathways and targeted therapy (2024) · cites this paper as [108]

    In ‘The advent of IL-6 trans-signalling’ (page unavailable), the paper identifies LIF and OSM as gp130-dependent cytokines and describes JAK–STAT activation by IL-6 signalling. ‘Development of IL-6 signalling inhibitors’ discusses IL-6-dependent myeloma-cell proliferation, but the paper does not establish that all three cytokines trigger JAK/STAT3 in MM cells. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • Binding of IL-6 to IL-6R leads to activation of JAK1, which phosphorylates STAT3, activating the JAK/STAT pathway.

    “Additionally, the binding of IL-6 to its receptor (IL-6R) leads to the activation of JAK1, which phosphorylates STAT3, thereby activating the JAK/STAT pathway [108].”

    From Multiple myeloma: signaling pathways and targeted therapy (2024) · cites this paper as [108]

    The Introduction describes IL-6 binding to membrane-bound IL-6R and forming a signalling complex with gp130. The advent of IL-6 trans-signalling section reports STAT3 phosphorylation and JAK–STAT activation following IL-6 signalling. However, our copy does not identify JAK1 specifically or state that JAK1 phosphorylates STAT3. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • Olamkicept (sgp130Fc) consists of two soluble human gp130 proteins fused with Fc of human IgG and selectively targets the IL-6-sIL-6R complex.

    “Soluble gp130Fc, named olamkicept or TJ301, is consists of two soluble human gp130 proteins fused with the Fc of human IgG, and selectively targets the IL-6-sIL-6R complex [79].”

    From The double-edged effects of IL-6 in liver regeneration, aging, inflammation, and diseases (2024) · cites this paper as [79]

    The ‘Preclinical and clinical development of olamkicept’ section identifies olamkicept as sgp130Fc. Figure 6 describes soluble gp130 fused to a human IgG1 Fc, and ‘An IL-6 trans-signalling inhibitor: sgp130Fc’ says the fusion protein interacts with IL-6–sIL-6R complexes. The passages do not establish the claimed count of two soluble gp130 proteins; the paper also notes interaction with IL-6–membrane IL-6R complexes, so binding is not exclusive to the soluble-receptor complex. (LLM, conf=0.84)

    Experimental — accuracy not yet measured
  • Global blockade of IL-6 signaling may reduce induction of hepatic acute-phase proteins upon infection, such as Listeria monocytogenes.

    “As IL-6 classic signaling plays crucial roles in the initiation of inflammation and the host defense against pathogen infection, global blockade of IL-6 signaling may reduce the induction of hepatic acute-phase proteins upon infection, such as Listeria monocytogenes [79].”

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Research works printed but not linked: 1

  1. [65]Kang S Narazaki M Metwally H Kishimoto T Historical overview of the interleukin-6 family cytokine J. Exp. Med. 2020 2020 5 PMC7201933 32267936

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Authors
Rose-John, S., Jenkins, B. J., Garbers, C., Moll, J. M., & Scheller, J.
Affiliations
  • Hudson Institute of Medical Research (AU)
  • Otto-von-Guericke-Universität Magdeburg (DE)
  • Heinrich Heine University Düsseldorf (DE)
Corresponding author
Scheller, Jürgen
Venue
Nature Reviews Immunology
Published
2023-04-17
Volume
23
Issue
10
Pages
666-681
ISSN
  • 1474-1733 (ISSN-L)
  • 1474-1741
OpenAlex
W4366085911
Cited by
524
References
212
Citations by year
2026: 146 · 2025: 184 · 2024: 151 · 2023: 43
FWCI
16.99
Type
journal article
Language
en
Open access
Locations
  • Nature reviews. Immunology (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • U.S. Department of Defense (LC170062)
  • Deutsche Forschungsgemeinschaft (CRC877, SFB 877, CRC 841, 125440785)
  • Deutsche Krebshilfe
Topics
  • Health Sciences › Medicine › Oncology › Cytokine Signaling Pathways and Interactions
  • Life Sciences › Immunology and Microbiology › Immunology › Psoriasis: Treatment and Pathogenesis
  • Health Sciences › Medicine › Rheumatology › Rheumatoid Arthritis Research and Therapies
Keywords
interleukin-6, IL-6 trans-signalling, soluble IL-6 receptor, gp130, sgp130, IL-6 receptor alpha, inflammatory bowel disease, autoimmune disease, chronic inflammation, cancer, cytokine therapy
MeSH terms
Humans, Neoplasms, Interleukin-6, Cytokines, Receptors, Interleukin-6, Cytokine Receptor gp130

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