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Signaling modality within gp130 receptor enhances tissue regeneration (Canine scRNA-seq)

ABSTRACT: Adult mammals are incapable of multi-tissue regeneration and augmentation of this potential may drastically shift current therapeutic paradigms. Here, we found that a common co-receptor of IL-6 cytokines, glycoprotein 130 (gp130), serves as a major nexus integrating various context-specific signaling inputs to either promote regenerative outcomes or aggravate disease progression. Via genetic and pharmacological experiments in vitro and in vivo, we demonstrated that a signaling tyrosine 814 (Y814) within gp130 serves as a major cellular stress sensor. Mice with constitutively inactivated Y814 (F814) exhibit regenerative, not reparative, responses after wounding in skin and anti-degenerative responses in the synovial joint. In addition, pharmacological inhibition of gp130 Y814 results in regeneration of multiple tissues in several species as well as disease modification in animal models of osteoarthritis. Our study characterizes a novel molecular mechanism that, if selectively manipulated, enhances the intrinsic regenerative capacity while preventing pathological outcomes in injury and disease.

ORGANISM(S): Canis lupus familiaris

PROVIDER: GSE168338 | GEO | 2024/01/24

REPOSITORIES: GEO

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Signaling modality within gp130 receptor enhances tissue regeneration (bulkRNA-seq)

Project description:Adult mammals are incapable of multi-tissue regeneration and augmentation of this potential may drastically shift current therapeutic paradigms. Here, we found that a common co-receptor of IL-6 cytokines, glycoprotein 130 (gp130), serves as a major nexus integrating various context-specific signaling inputs to either promote regenerative outcomes or aggravate disease progression. Via genetic and pharmacological experiments in vitro and in vivo, we demonstrated that a signaling tyrosine 814 (Y814) within gp130 serves as a major cellular stress sensor. Mice with constitutively inactivated Y814 (F814) exhibit regenerative, not reparative, responses after wounding in skin and anti-degenerative responses in the synovial joint. In addition, pharmacological inhibition of gp130 Y814 results in regeneration of multiple tissues in several species as well as disease modification in animal models of osteoarthritis. Our study characterizes a novel molecular mechanism that, if selectively manipulated, enhances the intrinsic regenerative capacity while preventing pathological outcomes in injury and disease.

2024-01-24 | GSE168279 | GEO

Signaling modality within gp130 receptor enhances tissue regeneration [R805 treatment]

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Signaling modality within gp130 receptor enhances tissue regeneration [WT vs Y814]

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Cell-autonomous hepatocyte-specific GP130 signalling alone is sufficient to trigger robust innate immune response in mice

Project description:Members of the IL-6 cytokine family contribute to inflammatory and regenerative processes. Engagement of the signalling receptor subunit gp130 is common to almost all members of the family. In the liver, all major cell types respond to IL-6, making it difficult to delineate cell type-specific effects of IL-6 type cytokines. We therefore generated mouse models for liver cell type-specific analysis of IL-6 signalling.

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Activation of gp130 signaling in T-cells drives TH17-mediated multi-organ autoimmunity

Project description:Purpose: Recently discovered activating Interleukin-6 receptor subunit beta (IL6ST, encoding glycoprotein 130 (gp130)) mutations, as well as germline Signal transducer and activator of transcription 3 (STAT3) gain-of-function mutations are associated with multi-organ autoimmunity, severe morbidity, and adverse prognosis, resulting in an unmet medical need. Methods: To dissect crucial cellular subsets and disease biology involved in activated gp130 signaling, in this study we constitutively activated the gp130/JAK/STAT3 axis by means of a transgene, L-gp130, specifically targeted to T-cells. Results: Activating gp130 signaling in vivo resulted in fatal early-onset multi-organ autoimmunity, resembling numerous clinical features of human STAT3 gain-of-function disease. We observed strong T-cell activation and effector differentiation, accompanied by TH17 expansion and interferon-gamma production. Transcriptome profiling of murine CD4+ and CD8+ T-cells revealed commonly dysregulated genes and a STAT3 gain-of-function signature that was used to discriminate between STAT3 gain-of-function and healthy control patients. Conclusions: Hyperactive gp130/STAT3 signaling leads to strong TH17-mediated autoimmunity phenotypically resembling human STAT3 gain-of-function disease and identify TH17-cells as a key cellular subset for initiation and maintenance of autoimmunity

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Macrophages trigger injury-induced hepatocyte reprogramming via IL-6/gp130/STAT3 axis [RNA-Seq]

Project description:The liver is a pivotal organ possessing remarkable regenerative capacity. By employing murine liver injury models and lineage tracing strategy, recent studies have demonstrated that differentiated hepatocytes undergo reprogramming to SOX9+HNF4α+ liver progenitor-like cells (LPLCs), and serve as a totally new cell source for mammalian liver regeneration. However, it is largely unknown how hepatocyte reprogramming is regulated. In this study, we focus on analyzing the microenvironment cues in triggering hepatocyte reprogramming in liver injuries. By performing single-cell RNA sequencing (scRNA-seq) of hepatocyte reprogramming in liver injury, we find immune response is significantly activated. Notably, by lineage depletion, macrophages, especially kupffer cells, but not T cells, B cells, natural killer cells or neutrophils, are found essential for hepatocyte reprogramming and liver regeneration. IL-6, derived specifically from activated kupffer cells, triggers hepatocyte reprogramming via gp130/STAT3 signaling. Furthermore, STAT3 triggers gene expression by binding to Arid1a-dependent pre-opened regeneration-responsive enhancers (RREs) of reprogramming genes. Collectively, this study provides key insights into kupffer cells/IL-6/STAT3-mediated hepatocyte reprogramming and liver regeneration, which may serve as the base for new therapeutic strategies in facilitating endogenous repair mechanisms.

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Macrophages trigger injury-induced hepatocyte reprogramming via IL-6/gp130/STAT3 axis [ChIP-Seq]

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Activation of gp130 signaling in T-cells drives TH17-mediated multi-organ autoimmunity [WT vs Stat3c]

Project description:Purpose: Recently discovered activating Interleukin-6 receptor subunit beta (IL6ST, encoding glycoprotein 130 (gp130)) mutations, as well as germline Signal transducer and activator of transcription 3 (STAT3) gain-of-function mutations are associated with multi-organ autoimmunity, severe morbidity, and adverse prognosis, resulting in an unmet medical need. Methods: To dissect crucial cellular subsets and disease biology involved in activated gp130 signaling, in this study we constitutively activated the gp130/JAK/STAT3 axis by means of a transgene, L-gp130, specifically targeted to T-cells. Results: Activating gp130 signaling in vivo resulted in fatal early-onset multi-organ autoimmunity, resembling numerous clinical features of human STAT3 gain-of-function disease. On a cellular level, strong T-cell activation and effector differentiation, accompanied by TH17 expansion and interferon-gamma production was observed. Transcriptome profiling of murine CD4+ and CD8+ T-cells of Lgp and Stat3C mice revealed commonly dysregulated genes and a gene signature that allowed for discrimination between STAT3 gain-of-function patients and healthy controls. In summary, we demonstrate that hyperactive gp130/STAT3 signaling leads to TH17-driven autoimmunity, phenotypically resembling human STAT3 gain-of-function disease. Conclusions: Hyperactive gp130/STAT3 signaling leads to strong TH17-mediated autoimmunity phenotypically resembling human STAT3 gain-of-function disease and identify TH17-cells as a key cellular subset for initiation and maintenance of autoimmunity

2022-12-01 | GSE199555 | GEO

Cytokimera GIL-11 rescued IL-6R deficient mice from partial hepatectomy-induced death by signaling via non-natural gp130:LIFR:IL-11R complexes

Project description:All except one cytokine of the Interleukin (IL-)6 family share glycoprotein (gp) 130 as the common b receptor chain. Whereas Interleukin (IL-)11 signal via the non-signaling IL-11 receptor (IL-11R) and gp130 homodimers, leukemia inhibitory factor (LIF) recruits gp130:LIF receptor (LIFR) heterodimers. Using IL-11 as a framework, we exchange the gp130 binding site III of IL-11 with the LIFR binding site III of LIF. The resulting synthetic cytokimera GIL-11 efficiently recruits the non-natural receptor signaling complex consisting of gp130, IL-11R and LIFR resulting in signal transduction and proliferation of factor-depending Ba/F3 cells. Besides LIF and IL-11, GIL-11 does not activate receptor complexes consisting of gp130:LIFR or gp130:IL-11R, respectively. Human GIL-11 shows cross-reactivity to mouse and rescued IL-6R deficient mice following partial hepatectomy, demonstrating gp130:IL-11R:LIFR signaling efficiently induced liver regeneration. With the development of the cytokimera GIL-11, we devise the functional assembly of the non-natural cytokine receptor complex of gp130:IL-11R:LIFR.

2023-04-19 | GSE226064 | GEO

Transcription profiling of SNS-gp130-/- vs control mice

Project description:To analyze the effect of Glycoprotein 130 in small diameter sensory neurons, dorsal root ganglia (DRG) of conditional SNS-gp130-/- and control (gp130fl/fl) mice were collected and mRNA expression profiles were compared between the two groups. DRG samples of two littermate mice were always pooled and a total of 10 gp130fl/fl and 10 SNS-gp130-/- mice were divided into 5 groups per genotype. Expression of transcripts were analyzed using the Applied Biosystems microarray platform AB1700 (Mouse Genome Survey Microarray V2.0).

2014-08-04 | E-MTAB-2584 | biostudies-arrayexpress

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