Cited by 200Cytokine Signaling Pathways and InteractionsLiver physiology and pathologyDrug-Induced Hepatotoxicity and Protection

The IL-6–gp130–STAT3 pathway in hepatocytes triggers liver protection in T cell–mediated liver injury

Open access
Klein, Christian, Wüstefeld, Torsten, Assmus, Ulrike, Roskams, Tania, Rose-John, Stefan, Müller, Michael, Manns, Michael P., Ernst, Mattias +1 more·2005·Journal of Clinical Investigation

Abstract

Increasing evidence demonstrates that IL-6 has a protective role during liver injury. IL-6 activates intracellular pathways via the gp130 receptor. In order to identify IL-6-gp130 pathways involved in mediating liver protection, we analyzed hepatocyte-specific gp130 knockout mice in a concanavalin A-induced (Con A-induced) model of immune-mediated hepatitis. We demonstrated that IL-6-gp130-dependent pathways in hepatocytes alone are sufficient for triggering protection in Con A-induced hepatitis. gp130-STAT3 signaling in hepatocytes mediates the IL-6-triggered protective effect. This was demonstrated by analysis of IL-6-induced protection in mice selectively deficient for gp130-dependent STAT1/3 or gp130-SHP2-RAS signaling in hepatocytes. To identify IL-6-gp130-STAT1/3 dependently expressed liver-protective factors, we performed gene array analysis of hepatic gene expression in hepatocyte-specific gp130(-/-) mice as well as in gp130-STAT1/3- and gp130-SHP2-RAS-MAPK-deficient mice. The mouse IL-8 ortholog KC (also known as Gro-alpha) and serum amyloid A2 (SAA2) was identified as differentially IL-6-gp130-STAT3-regulated genes. Hepatic expression of KC and SAA2 mediate the liver-protective potential of IL-6, since treatment with recombinant KC or serum SAA2 effectively reduced liver injury during Con A-induced hepatitis. In summary, this study defines IL-6-gp130-STAT3-dependent gene expression in hepatocytes that mediates IL-6-triggered protection in immune-mediated Con A-induced hepatitis. Additionally, we identified the IL-6-gp130-STAT3-dependent proteins KC and SAA2 as new candidates for therapeutic targets in liver diseases.

AI snapshot

Written from the paper’s full text.

TL;DR

In a mouse Con A model of T cell–mediated hepatitis, IL-6–gp130–STAT3 signaling specifically in hepatocytes is necessary and sufficient for IL-6-triggered liver protection. The authors identify KC and SAA2 as IL-6–gp130–STAT3–dependent hepatocyte proteins that can themselves reduce Con A–induced liver injury.

Key findings

  • Hepatocyte gp130 is required for IL-6 protection: IL-6 pretreatment completely blocked AST increases in wild-type mice, but failed to protect hepatocyte-specific gp130-null mice; all `alfpCre gp130 LoxP/LoxP` mice died within the first 20 hours after Con A, whereas NaCl- and IL-6-treated wild-type animals survived.
  • The protective signal is gp130-STAT3, not gp130-SHP2-RAS-MAPK: IL-6 pretreatment completely prevented liver damage in `alfpCre gp130 Y757F/LoxP` mice, while all `alfpCre gp130 ΔSTAT/LoxP` mice died within 8 hours after Con A regardless of IL-6, versus 100% survival in the Y757F group.
  • Gene array analysis identified KC and SAA2 as differentially IL-6–gp130-STAT3–regulated genes. Recombinant SAA (0.8 mg/kg) significantly reduced AST increases, and recombinant KC (40 µg/kg) significantly reduced AST levels and led to 100% survival versus 70% in NaCl-treated animals.
  • IL-6 treatment significantly reduced PMN infiltration 4 hours after Con A injection, and IL-6 stimulation induced KC serum levels by approximately 100-fold.

Methods

  • Male BALB/c mice, 8–10 weeks old, were used. Hepatocyte-specific gp130 mutants were generated by crossing `alfpCre` mice with `gp130 LoxP`, `gp130 ΔSTAT/ΔSTAT`, or `gp130 Y757F/Y757F` mice. Con A hepatitis was induced with 32.5 mg/kg i.v.; IL-6 (200 µg/kg) was given i.p. 3 hours before Con A; recombinant SAA (0.8 mg/kg) or KC (40 µg/kg) was given i.v. 1 hour before Con A.
  • Liver injury was quantified by serum AST; cytokine levels by ELISA; STAT1/STAT3/ERK activation by Western blot and immunofluorescence; PMN infiltration by H&E counts.
  • Gene expression profiling used Affymetrix mouse genome GeneChips on pooled liver RNA from 3 mice per group treated with IL-6 or NaCl; primary hepatocytes were isolated by collagenase perfusion and stimulated with 200 ng/ml IL-6.

Limitations

  • The paper does not state a limitations section. Evident from the text: all experiments are in mice using the Con A model, so human relevance remains extrapolative.
  • Gene expression profiling used pooled RNA from 3 mice per group, limiting assessment of inter-individual variability.
  • Some supporting observations are reported as “data not shown” (e.g., hepatic mRNA expression and KC-dependent PMN influx), so they cannot be independently verified from the paper.

Model-written summary. Check it against the paper before relying on it.

Integrity signals

Registry

Crossref · 10.1172/jci23640

Cites

54 of 54 references verified0 citation errors · 0 not checkable

Statistics

Nothing to recompute.

Claims the paper makes

15 of 24 cited sources checked · 8 supported · 0 flagged · accuracy not yet measured

  • Premisecitation
    § The IL-6-gp130-STAT3 pathway in hepatocytes triggers liver protection in T cell-mediated liver injury · p. 1

    IL-6 has a protective role during liver injury.

    “Increasing evidence demonstrates that IL-6 has a protective role during liver injury.”
    • Also stated in: § Introduction · p. 1 · plain
      “IL-6 is a pleiotropic cytokine with beneficial effects for the liver. This cytokine promotes liver regeneration and protects against a multitude of liver-damaging influences such as alcohol and CCl4 intoxication (1-4).”
    Quote in the paperSubstantial claim3 of 4 sources checked
    • cites [1] source
    • cites [2] source
    • cites [3] source
    • cites [4] source
  • Premisecitation
    § The IL-6-gp130-STAT3 pathway in hepatocytes triggers liver protection in T cell-mediated liver injury · p. 1

    IL-6 activates intracellular pathways via the gp130 receptor.

    “IL-6 activates intracellular pathways via the gp130 receptor.”
    • Also stated in: § Introduction · p. 1 · boosted
      “The initiated intracellular signaling is strictly dependent on the function of gp130 (19).”
    Quote in the paperSubstantial claim1 of 1 sources checked
    • cites [19] Ishihara, 2002, Biochim. Biophys. Acta. source
  • Premisecitation
    § Figure 7 · p. 8

    KC alone is not sufficient for the activation of infiltrated cells.

    “However, KC alone is not sufficient for the activation of infiltrated cells, and high systemic KC levels lead to impaired PMN activation via desensitization of the PMN CXC-receptor 2 (46).”
    Quote in the paperSubstantial claim1 of 1 sources checked
  • Premisecitation
    § Figure 7 · p. 8

    High systemic KC levels lead to impaired PMN activation via desensitization of the PMN CXC-receptor 2.

    “However, KC alone is not sufficient for the activation of infiltrated cells, and high systemic KC levels lead to impaired PMN activation via desensitization of the PMN CXC-receptor 2 (46).”
    Quote in the paperSubstantial claim1 of 1 sources checked
    • cites [46] source

      The Discussion (p. 2046) says chronic N51/KC expression recruits neutrophils without inflammatory activation and suggests that activation such as degranulation requires other mediators. It does not report that high systemic KC impairs PMN activation or that CXC-receptor 2 desensitization causes such impairment. (LLM, conf=0.88)

      Experimental — accuracy not yet measured
  • Premisecitation
    § Figure 5 · p. 6

    IL-6 attenuates liver injury in Con A-induced hepatitis.

    “Earlier studies demonstrated that IL-6 attenuated liver injury in Con A-induced hepatitis (1).”
    Quote in the paperSubstantial claim1 of 1 sources checked
    • cites [1] source

      The Results (p. 1533) show that recombinant IL-6 given before Con A injection protected mice from liver injury. The timing qualification matters: IL-6 given at the same time had no protective effect, and administration afterward increased injury. The unqualified claim therefore overstates the finding. (LLM, conf=0.86)

      Experimental — accuracy not yet measured
  • Classified as probably not a substantial claim. 14
  • May combine two claims. 15
  • The quote only partly states this claim. 1
  • Classified as probably not a substantial claim. May combine two claims.

    Premisecitation
    § Introduction · p. 1

    Phosphorylation of gp130 leads to dimerization of gp130 and activation of STAT1 and STAT3 as well as the SHP2-RAS-MAPK pathway.

    “The phosphorylation of gp130 leads to dimerization of gp130 and activation of STAT1 and STAT3 as well as the SHP2-RAS-MAPK pathway (where SHP2 is Src homology 2 [SH2] domain-containing protein tyrosine phosphatase) (20-22).”
    Quote in the paperSubstantial claim1 of 3 sources checked
    • cites [20] source
    • cites [21] Nakajima, 1996, EMBO J. source

      The Abstract describes IL-6-induced Stat activation, particularly Stat3, in M1 leukemia cells. The available passages do not establish that gp130 phosphorylation causes gp130 dimerization or activates STAT1 and the SHP2–RAS–MAPK pathway; those parts of the attributed claim are unsupported. (LLM, conf=0.78)

      Experimental — accuracy not yet measured
    • cites [22] source
  • Classified as probably not a substantial claim. May combine two claims.

    Premisecitation
    § Introduction · p. 1

    IL-6 binds membrane-bound IL-6 receptor α (gp80), and the IL-6-gp80 dimer interacts with gp130, the signal transducing unit.

    “For signal transduction, IL-6 binds the membrane-bound IL-6 receptor α (gp80). The IL-6-gp80 dimer interacts with gp130, the signal transducing unit in this complex.”
    Quote in the paperSubstantial claim1 of 1 sources checked
    • cites [19] Ishihara, 2002, Biochim. Biophys. Acta. source

      Section 2 (page unavailable) says IL-6 binds IL-6Rα, triggering its association with gp130, which the paper identifies as the signal-transducing subunit. The paper distinguishes cell-expressed IL-6Rα from its soluble form, but the available passages do not identify IL-6Rα as “gp80”; that specific label is unsupported by our copy. (LLM, conf=0.82)

      Experimental — accuracy not yet measured
  • Classified as probably not a substantial claim.

    Premisecitation
    § Figure 7 · p. 8

    Activation of PMNs during Con A-induced liver failure is an essential step for disease progression.

    “Activation of PMNs during Con A-induced liver failure is an essential step for disease progression (12).”
    Quote in the paperSubstantial claim1 of 1 sources checked
    • cites [12] Bonder, 2004, J. Immunol. source

      The Discussion (page not provided) says Con A activates neutrophils and calls their activation an important step in Con A-induced hepatitis. It describes neutrophil recruitment as paramount and shows that depletion prevents liver injury, but it does not establish that activation itself is essential. (LLM, conf=0.84)

      Experimental — accuracy not yet measured
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation
    § Figure 5 · p. 6

    Other IL-6 family members, e.g., IL-11 and CT-1, also confer protection in Con A-induced hepatitis.

    “Additionally, recent reports demonstrated that other IL-6 family members, e.g., IL-11 and CT-1, also confer protection in this model (35, 36).”
    Quote in the paperNot a substantial claim2 of 2 sources checked
    • cites [35] source
    • cites [36] Mahboubi, 2000, J. Immunol. source

      The Abstract identifies IL-11 as an IL-6-family cytokine, and the section on CTL- and complement-mediated cytolysis reports that IL-11 partially protects human endothelial cells from immune-mediated injury. The paper does not report protection by IL-11 or CT-1 in Con A-induced hepatitis; its experiments concern endothelial cells, not that hepatitis model. (LLM, conf=0.84)

      Experimental — accuracy not yet measured
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation
    § Introduction · p. 1

    During early stages of Con A-induced hepatitis, TNFα and IFNγ directly mediate liver cell damage.

    “During the early stages, TNFα and IFNγ directly mediate liver cell damage (11).”
    Quote in the paperNot a substantial claim1 of 1 sources checked
    • cites [11] source

      The introduction (page not supplied) reports that TNF levels rise early after Con A injection and that anti-TNF treatment blocks liver injury. The Discussion (page not supplied) says IFNγ is critical for apoptosis but finds no clear evidence that it directly induces it; the authors consider it more likely to modulate TNF-triggered pathways. Thus, the claim that both cytokines directly mediate early liver cell damage overstates the source. (LLM, conf=0.88)

      Experimental — accuracy not yet measured
  • Classified as probably not a substantial claim.

    Premisecitation
    § Introduction · p. 1

    gp130 is the common signal transducer used by the IL-6 family of cytokines.

    “Gp130 is the common signal transducer used by the IL-6 family of cytokines, which includes IL-6, leukemia inhibitory factor (LIF), IL-11, cardiotrophin-1 (CT-1), oncostatin-M (OSM), and the ciliary neurotrophic factor (19).”
    Quote in the paperSubstantial claim1 of 1 sources checked
    • cites [19] Ishihara, 2002, Biochim. Biophys. Acta. source
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation
    § Figure 7 · p. 8

    Recent studies showed effects of KC expression on monocyte recruitment during development of experimental atherosclerosis.

    “Additionally, recent studies showed effects of KC expression on monocyte recruitment during development of experimental atherosclerosis (47).”
    Quote in the paperNot a substantial claim1 of 1 sources checked
    • cites [47] Huo, 2001, J. Clin. Invest. source
  • May combine two claims.

    Findingown data
    § Figure 6 · p. 7

    High IL-6 serum concentrations after Con A injection are detectable in animals with a disruption of the IL-6-gp130-STAT3 pathway and correlate with increased morbidity.

    “High IL-6 serum concentrations after Con A injection were detectable in animals with a disruption of the IL-6gp130-STAT3 pathway and correlated with increased morbidity.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data
    § Figure 6 · p. 7

    Hepatocytes of IL-6-pretreated wild-type mice show STAT3 activation 3 hours after IL-6 injection but are not able to activate STAT3 up to 4 hours after initiation of Con A-induced hepatitis, although high IL-6 serum levels are detectable.

    “Hepatocytes of IL-6-pretreated wild-type mice showed STAT3 activation 3 hours after IL-6 injection. Up to 4 hours after initiation of Con A-induced hepatitis, these cells were not able to activate STAT3, although high IL-6 serum levels were detectable (Figures 3D and 2E).”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data
    § Figure 3 · p. 4

    alfpCre gp130 Δ STAT/LoxP animals show enhanced sensitivity toward Con A compared to wild-type mice, and all die within 8 hours after Con A injection independently of IL-6 pretreatment.

    “In contrast, alfpCre gp130 Δ STAT/LoxP animals showed enhanced sensitivity toward Con A when compared to wild-type mice (Figure 5B). Independently of IL-6 pretreatment, all alfpCre gp130 Δ STAT/LoxP mice died within 8 hours after Con A injection in contrast to a 100% survival rate for all analyzed alfpCre gp130 Y757F/LoxP animals.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data
    § Figure 6 · p. 7

    IFNγ levels in alfpCre gp130Y757F/LoxP and wild-type mice are not affected by pretreatment with IL-6, despite both strains showing protection from Con A-induced liver damage.

    “IFNγ levels in alfpCre gp130 Y757F/LoxP and wild-type mice were not affected by pretreatment with IL-6, despite our observation that both strains showed protection from Con A-induced liver damage (Figure 2, C and D; Figure 5, C and D).”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data
    § Results · p. 2

    IL-6 pretreatment completely blocks liver cell damage in gp130 wild-type mice, with no increase in transaminases.

    “IL-6 pretreatment completely blocked liver cell damage. No increase in transaminases was evident (Figure 1A).”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data
    § Figure 7 · p. 8

    IL-6 stimulation induces KC serum levels by approximately 100-fold, correlating with a pronounced upregulation of KC mRNA in the liver.

    “IL-6 stimulation induces KC serum levels by approximately 100-fold, correlating with a pronounced upregulating of KC mRNA in the liver (Figure 6).”
    Quote in the paperSubstantial claim
  • The quote only partly states this claim.

    Findingown data
    § Figure 3 · p. 4

    Hepatic gene expression profiles in IL-6-treated wild-type, alfpCre gp130 LoxP/LoxP, alfpCre gp130 Y757F/LoxP, and alfpCre gp130 Δ STAT/LoxP mice show genes significantly regulated by gp130-dependent pathways in hepatocytes in vivo.

    “Figure 6 depicts a selection of genes that are significantly regulated by gp130-dependent pathways in hepatocytes in vivo.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data
    § Figure 6 · p. 7

    IL-6 stimulation reduces TNFα levels in wild-type mice but does not change TNFα levels in alfpCre gp130Y757F/LoxP mice.

    “In wild-type mice, TNFα levels were reduced after IL-6 stimulation. But in alfpCre gp130 Y757F/LoxP mice, which retained sensitivity to IL-6-dependent liver protection, no changes in TNFα levels were detected.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data
    § Figure 1 · p. 2

    All alfpCre gp130 LoxP/LoxP mice died within the first 20 hours after Con A injection, whereas all NaCl- and IL-6-treated wild-type animals survived during this phase.

    “Additionally, all alfpCre gp130 LoxP/LoxP mice died within the first 20 hours after Con A injection. In contrast, all NaCL- and IL-6-treated wild-type animals survived during this phase, indicating a higher sensitivity of alfpCre gp130 LoxP/LoxP mice toward Con A.”
    Quote in the paperSubstantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation
    § Figure 6 · p. 7

    SOCS-3 negatively regulates IL-6 signaling in vivo.

    “It has been shown that SOCS-3 negatively regulates IL-6 signaling in vivo (43).”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [43] source
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Interpretationreasoning
    § Figure 6 · p. 7

    The increased number of STAT3-positive cells likely reflects IL-6-induced sensitization of NK cells, monocytes, or Kupffer cells to STAT3-activating pathways.

    “The increased number of STAT3-positive cells likely reflects IL-6induced sensitization of NK cells, monocytes, or Kupffer cells to STAT3-activating pathways.”
    Quote in the paperNot a substantial claim
  • Classified as probably not a substantial claim.

    Premisecitation
    § Introduction · p. 1

    Con A-induced liver damage is a well-defined experimental animal model of acute hepatitis that mimics human viral and autoimmune hepatitis in many aspects.

    “Con A-induced liver damage is a well-defined experimental animal model of acute hepatitis. It mimics human viral and autoimmune hepatitis in many aspects (8-10).”
    Quote in the paperSubstantial claim0 of 3 sources checked
    • cites [8] Casini, 1985, Liver. source
    • cites [9] source
    • cites [10] source
  • May combine two claims.

    Interpretationreasoning
    § Figure 6 · p. 7

    IL-6 pretreatment inhibits the increase of STAT3 activation in hepatocytes of wild-type mice probably by inducing negative feedback mechanisms, such as induction of SOCS-3 in hepatocytes.

    “IL-6 pretreatment inhibited the increase of STAT3 activation in hepatocytes of wild-type mice, probably by inducing negative feedback mechanisms, e.g., induction of SOCS-3 in hepatocytes (Figure 6).”
    Quote in the paperNot a substantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

    Premisecitation
    § Figure 7 · p. 8

    A variety of factors, such as LPS or PDGF, induce tissue-specific expression of KC, which in turn promotes localized PMN migration.

    “A variety of factors, such as LPS or PDGF, induce tissue-specific expression of KC (45), which in turn promotes localized PMN migration.”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [45] Bozic, 1995, J. Immunol. source
  • May combine two claims.

    Interpretationown data
    § Figure 6 · p. 7

    Serum levels of TNFα and IFNγ show no correlation with the capacity of IL-6 to provide protection from liver damage, indicating that alterations in concentrations of these cytokines are unlikely to explain protection.

    “Thus, serum levels of TNFα and IFNγ showed no correlation with the capacity of IL-6 to provide protection from liver damage, indicating that alterations in concentrations of these cytokines are unlikely to explain protection.”
    Quote in the paperSubstantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Study design and conductnone given
    § Detection of nuclear p-STAT3, p-STAT1, and p-ERK · p. 9

    To verify equal loading of protein samples, a Coomassie-blue stained SDS Gel was quantified.

    “To verify equal loading of protein samples, a Coomassie-blue stained SDS Gel was quantified.”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Interpretationown data
    § research article · p. 9

    Both SAA2 and KC are potent inhibitors of Con A-induced hepatitis.

    “Both proteins are potent inhibitors of Con Ainduced hepatitis and might also be of interest in the treatment of immune-mediated liver diseases in humans.”
    Quote in the paperSubstantial claim
  • Classified as probably not a substantial claim. May combine two claims.

    Study design and conductown data
    § Gene expression profile analysis · p. 9

    Nuclear proteins were isolated from each liver, and activation of STAT3 and ERK1/2 was analyzed by Western blot to verify the integrity of IL-6 signaling in each mouse.

    “Additionally, nuclear proteins were isolated from each liver, and the activation of STAT3 and ERK1/2 was analyzed by Western blot to verify the integrity of IL-6 signaling in each mouse.”
    Quote in the paperSubstantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Study design and conductnone given
    § IL-6, SAA, KC, and Con A treatment · p. 9

    To ensure that infiltrated cells in livers of Con A-treated mice were not eliminated, the organs were washed intensively by shaking for 15 minutes in cold PBS.

    “To ensure that infiltrated cells in livers of Con A-treated mice were not eliminated, we washed the organs intensively by shaking the organs for 15 minutes in cold PBS.”
    Quote in the paperNot a substantial claim
26 of 26
  • The paper relies on this without support.

    The overall extent of hepatic gp130 inactivation in alfpCre gp130 LoxP/LoxP mice reflects complete gp130 deletion in hepatocytes.

    “Since nonparenchymal cells show no gp130 deletion, the overall extent of hepatic gp130 inactivation is likely to reflect complete gp130 deletion in hepatocytes.”
  • The paper relies on this without support.

    KC controls chemotaxis and activation of polymorph nuclear cells (PMNs) in areas of inflammation.

    “KC controls chemotaxis and activation of polymorph nuclear cells (PMNs) in areas of inflammation.”
  • The paper relies on this without support.

    SAA2 is a target of MMP.

    “SAA2 is a known target of MMP and MMP activity induced during T cell-mediated hepatitis.”
  • The paper relies on this without support.

    KC is an immediate early gene with low or no detectable expression in most tissues.

    “KC is an immediate early gene with low or no detectable expression in most tissues.”
4 of 4

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Binding of IL-6 to its receptor protects hepatocytes during acute hepatic injury.

    “binding to its receptor has been shown to protect hepatocytes during acute hepatic injury [11]”
  • Under appropriate circumstances, regulation of the endogenous hepatocellular IL-6 receptor can be autocrine instead of endocrine/paracrine.

    “Importantly, this indicates that under the appropriate circumstances, regulation of the endogenous hepatocellular IL-6 receptor can be autocrine instead of endrocrine/paracrine [11].”

    From Synthesis of IL-6 by Hepatocytes Is a Normal Response to Common Hepatic Stimuli (2014) · cites this paper as [11]

    The Introduction (p. 1) describes IL-6 binding the hepatocyte IL-6 receptor and signaling through gp130, but does not identify the source of IL-6. A search for autocrine signaling and hepatocyte production of IL-6 found no passage establishing that receptor regulation can be autocrine rather than endocrine or paracrine. (LLM, conf=0.72)

    Experimental — accuracy not yet measured

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

Each contradiction between two passages listed here was confirmed by an independent check.

  • KC is identified as both Groα and keratinocyte growth factor

    Minor

    The paper identifies KC as the mouse IL-8 ortholog Groα, but its abbreviations list defines KC as keratinocyte growth factor. These are different names for different factors.

1 of 1

Cites

Flagged first, then by citations

Research works printed but not linked: 1

  1. Gantner, 1995, Hepatology., 21, 190

Cited by

Sorted by citations

Authors
Klein, C., Wüstefeld, T., Assmus, U., Roskams, T., Rose-John, S., Müller, M., Manns, M. P., Ernst, M., & Trautwein, C.
Affiliations
  • Medizinische Hochschule Hannover (DE)
  • KU Leuven (BE)
  • Wageningen University & Research (NL)
  • The Royal Melbourne Hospital (AU)
Venue
Journal of Clinical Investigation
Published
2005-03-03
Volume
115
Issue
4
Pages
860-869
ISSN
0021-9738 (ISSN-L)
OpenAlex
W2020798985
Cited by
200
References
52
Citations by year
2026: 2 · 2025: 5 · 2024: 8 · 2023: 7 · 2022: 7 · 2021: 11 · 2020: 9 · 2019: 7 · 2018: 7 · 2017: 10 · 2016: 5 · 2015: 8 · 2014: 12 · 2013: 15 · 2012: 12
FWCI
4.80
Type
journal article
Language
en
Open access
Locations
  • Journal of Clinical Investigation (publishedVersion)
  • PubMed (publishedVersion)
  • Socio-Environmental Systems Modeling (acceptedVersion)
  • PubMed Central (submittedVersion)
  • RWTH Publications (RWTH Aachen) (submittedVersion)
  • UEA Digital Repository (University of East Anglia) (submittedVersion)
  • Data Archiving and Networked Services (DANS) (submittedVersion, other-oa)
Funders
Deutsche Forschungsgemeinschaft (SFB 566, Project B8)
Topics
  • Health Sciences › Medicine › Oncology › Cytokine Signaling Pathways and Interactions
  • Health Sciences › Medicine › Hepatology › Liver physiology and pathology
  • Life Sciences › Pharmacology, Toxicology and Pharmaceutics › Pharmacology › Drug-Induced Hepatotoxicity and Protection
Keywords
interleukin-6, gp130, STAT3, hepatocytes, liver injury, immune-mediated hepatitis, concanavalin A-induced hepatitis, hepatoprotection, SAA2, STAT1, hepatocyte-specific knockout mice, therapeutic target
MeSH terms
Serum Amyloid A Protein, Animals, Concanavalin A, DNA-Binding Proteins, Enzyme Activation, Hepatitis, Interferon-gamma, Liver, Male, Membrane Glycoproteins, Mice, Inbred BALB C, T-Lymphocytes, Tumor Necrosis Factor-alpha, Signal Transduction, Trans-Activators, Antigens, CD, Interleukin-6, Mice, Knockout, Gene Expression Profiling, Hepatocytes, Extracellular Signal-Regulated MAP Kinases, STAT1 Transcription Factor, STAT3 Transcription Factor, Cytokine Receptor gp130, Mice

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