IL-6
IL-6 is a pleiotropic cytokine that regulates immune response, acute inflammation, tissue regeneration, metabolism, and stromal activation[1][2]. Mechanistically, IL-6 binds IL-6Rα and recruits gp130, activating JAK/STAT3 signaling and downstream transcriptional programs[1][3]. Disease relevance depends strongly on receptor context: membrane IL-6Rα supports classic signaling, whereas soluble IL-6Rα enables trans-signaling in gp130-expressing cells and drives pro-inflammatory activity[1][4]. Compared with these receptor forms, gp130 is broadly expressed, while IL-6R expression is restricted to selected cells such as hepatocytes and leukocytes, explaining cell-type-selective responsiveness[1]. In vascular endothelial cells, IL-6 trans-signaling induces MCP-1 through coordinated JAK/STAT3 and PI3K/AKT activation[5]. In proliferative vitreoretinopathy models, IL-6 promotes retinal pigment epithelial proliferation and epithelial-mesenchymal transition through JAK1/STAT3 signaling[6]. For experimental intervention, tocilizumab, a humanized anti-IL-6R antibody, blocks IL-6 signaling and improves rheumatoid arthritis outcomes in controlled clinical studies[7][8].
References:
- [1]. Rose-John S. IL-6 trans-signaling via the soluble IL-6 receptor: importance for the pro-inflammatory activities of IL-6. Int J Biol Sci. 2012;8(9):1237-47. doi: 10.7150/ijbs.4989. Epub 2012 Oct 24. PMID: 23136552; PMCID: PMC3491447. et al. IL-6 trans-signaling via the soluble IL-6 receptor: importance for the pro-inflammatory activities of IL-6. Int J Biol Sci. 2012;8(9):1237-47. [Content Brief]
- [2]. Danese S, et al. Interleukin-6: a therapeutic Jekyll and Hyde in gastrointestinal and hepatic diseases. Gut. 2010 Feb;59(2):149-51. [Content Brief]
- [3]. Reeh H, et al. Response to IL-6 trans- and IL-6 classic signalling is determined by the ratio of the IL-6 receptor α to gp130 expression: fusing experimental insights and dynamic modelling. Cell Commun Signal. 2019 May 17;17(1):46. [Content Brief]
- [4]. Maes M, et al. Targeting classical IL-6 signalling or IL-6 trans-signalling in depression? Expert Opin Ther Targets. 2014 May;18(5):495-512. [Content Brief]
- [5]. Zegeye MM, et al. Activation of the JAK/STAT3 and PI3K/AKT pathways are crucial for IL-6 trans-signaling-mediated pro-inflammatory response in human vascular endothelial cells. Cell Commun Signal. 2018 Sep 5;16(1):55. [Content Brief]
- [6]. Chen X, et al. Interleukin-6 promotes proliferative vitreoretinopathy by inducing epithelial-mesenchymal transition via the JAK1/STAT3 signaling pathway. Mol Vis. 2020 Jul 29;26:517-529. [Content Brief]
- [7]. Ohsugi Y, et al. The recombinant humanized anti-IL-6 receptor antibody tocilizumab, an innovative drug for the treatment of rheumatoid arthritis. Expert Opin Biol Ther. 2008 May;8(5):669-81. [Content Brief]
- [8]. Emery P, et al. IL-6 receptor inhibition with tocilizumab improves treatment outcomes in patients with rheumatoid arthritis refractory to anti-tumour necrosis factor biologicals: results from a 24-week multicentre randomised placebo-controlled trial. Ann Rheum Dis. 2008 Nov;67(11):1516-23. [Content Brief]
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Recombinant Proteins (24)
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Chitohexaose hexahydrochloride
0 ImagesCat. No.: HY-N7697CCAS No.: 127171-88-4Chitohexaose hexahydrochloride is a small molecular polysaccharide. Chitohexaose hexahydrochloride inhibits the binding of AgW to TLR4. Chitohexaose hexahydrochloride upregulates IL-10, inhibits LPS-induced upregulation of ROS, induces alternative activation of macrophages/monocytes, and suppresses LPS-induced production of TNF-α, IL-1β and IL-6. Chitohexaose hexahydrochloride reverses the mortality of mice challenged with APAP or LPS. Chitohexaose hexahydrochloride can be used in research related to Acetaminophen (HY-66005)-induced hepatotoxicity and endotoxemia.
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Berkeleyacetal C
0 ImagesCat. No.: HY-N10175CAS No.: 959772-67-9keleyacetal C, a meroterpenoid compound with anti-inflammatory effects via inhibiting NF-κB, ERK1/2 and IRF3 signaling pathways. Berkeleyacetal C significantly inhibits the expression of iNOS and the following NO production by macrophages. Berkeleyacetal C inhibits expression and secretion of key pro-inflammatory factors and chemokines (TNF-α, IL-6, IL-1β, MIP-1α, and MCP-1). Berkeleyacetal C also inhibits activation of neutrophils and reactive oxygen species (ROS) production. Berkeleyacetal C can be used for the study of inflammatory disorders.
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Cavidine
0 ImagesCat. No.: HY-101546ACAS No.: 32728-75-9Synonyms: (+)-CavidineCavidine ((+)-Cavidine) is an analgesic and anti-inflammatory agent. Cavidine can be isolated from Corydalis ternata f. yanhusuo (Y.H.Chou & Chun C.Hsu) Y.C.Zhu. Cavidine reduces the expression of inflammatory factors IL-1β, IL-6 and TNF-α, and inhibits calcium ion influx. Cavidine inhibits the phosphorylation of p38 and ERK1/2. Cavidine increases mechanical and thermal pain thresholds in chronic pain models. Cavidine can be used for the research of chronic pain.
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Vitexin-2"-O-rhamnoside (Standard)
0 ImagesCat. No.: HY-N0534RCAS No.: 64820-99-1Vitexin-2"-O-rhamnoside (Standard) is the analytical standard of Vitexin-2"-O-rhamnoside (HY-N0534). This product is intended for research and analytical applications. Vitexin-2"-O-rhamnoside is an orally active flavonoid glycoside. Vitexin-2"-O-rhamnoside inhibits Apoptosis, increases the phosphorylation levels of PI3K/Akt, inhibits caspase-3, SOD activity, and promotes cytokine (IL-2, IL-6, and IL-12) secretion. Vitexin-2"-O-rhamnoside strongly inhibits DNA synthesis in MCF-7 cells with an IC50 of 17.5 μM. Vitexin-2"-O-rhamnoside enhances immune function and improves the absorption of active compounds. Vitexin-2"-O-rhamnoside has antioxidant activity. Vitexin-2"-O-rhamnoside is used in the study of cardiovascular disease and immune-related diseases.
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Alisol A (Standard)
0 ImagesCat. No.: HY-N0853RCAS No.: 19885-10-0Alisol A (Standard) is the analytical standard of Alisol A (HY-N0853). This product is intended for research and analytical applications. Alisol A is an orally active tetracyclic triterpenoid compound of the prototerpane type. Alisol A can be extracted from the rhizome of Alisma orientale. Alisol A activates AMPK/ACC/SREBP-1c, SIRT1, PPARα, inhibits MMP-2/-9, decreases inflammatory cytokine expression (IL-1β, IL-6, IL-8). Alisol A has anti-tumor activity against breast cancer and colorectal cancer. Alisol A has anti-obesity and anti-atherosclerotic activities. Alisol A can be used in the research of hepatitis B, breast cancer, colorectal cancer, atherosclerosis, and obesity.
