2. Signaling Pathways
  3. Apoptosis
  4. TNF Receptor

TNF Receptor

Tumor Necrosis Factor Receptor; TNFR

TNF Receptor

Related Products

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Tumor necrosis factor (TNF) is a major mediator of apoptosis as well as inflammation and immunity, and it has been implicated in the pathogenesis of a wide spectrum of human diseases, including sepsis, diabetes, cancer, osteoporosis, multiple sclerosis, rheumatoid arthritis, and inflammatory bowel diseases.

TNF-α is a 17-kDa protein consisting of 157 amino acids that is a homotrimer in solution. In humans, the gene is mapped to chromosome 6. Its bioactivity is mainly regulated by soluble TNF-α–binding receptors. TNF-α is mainly produced by activated macrophages, T lymphocytes, and natural killer cells. Lower expression is known for a variety of other cells, including fibroblasts, smooth muscle cells, and tumor cells. In cells, TNF-α is synthesized as pro-TNF (26 kDa), which is membrane-bound and is released upon cleavage of its pro domain by TNF-converting enzyme (TACE).

Many of the TNF-induced cellular responses are mediated by either one of the two TNF receptors, TNF-R1 and TNF-R2, both of which belong to the TNF receptor super-family. In response to TNF treatment, the transcription factor NF-κB and MAP kinases, including ERK, p38 and JNK, are activated in most types of cells and, in some cases, apoptosis or necrosis could also be induced. However, induction of apoptosis or necrosis is mainly achieved through TNFR1, which is also known as a death receptor. Activation of the NF-κB and MAPKs plays an important role in the induction of many cytokines and immune-regulatory proteins and is pivotal for many inflammatory responses.

TNF Receptor Isoform Specific Products:

TNF Receptor Isoform Comparison
Cat. No. Product Name Effect Purity Chemical Structure
  • HY-N15307
    Trigraecum
    		Inhibitor
    Trigraecum is a flavonoid compound found in Dracaena steudneri and Dalbergia cochinchinensis, exhibiting anti-inflammatory activity. It can inhibit the LPS (HY-D1056)-induced production of IL-1β, IL-2, GM-CSF, and TNF-α in human peripheral blood mononuclear cells. Trigraecum holds promise for research on inflammatory diseases.
    Trigraecum
  • HY-N1965R
    Gaultherin (Standard)
    		Inhibitor
    Gaultherin (Standard) is the analytical standard for Gaultherin (HY-N1965). Gaultherin is an orally active non-steroidal anti-inflammatory agent. Gaultherin selectively inhibits NF-κB, MAPK, COX-2 (IC50 = 0.35 mg/mL), LOX (IC50 = 0.56 mg/mL) and HYAL (IC50 = 28.58 μg/mL) to exert anti-inflammatory, antipyretic and analgesic effects. Gaultherin exhibits modest direct antioxidant capacity, greater in cell-based models. Gaultherin does not affect COX-1 so that avoids the common gastrointestinal side effects of Aspirin (HY-14654).
    Gaultherin (Standard)
  • HY-N3021R
    D-chiro-Inositol (Standard)
    		Inhibitor
    D-chiro-Inositol is a stereoisomer of inositol that exhibits activities such as improving glucose metabolism, anti-tumor effects, anti-inflammatory properties, and antioxidant activity. D-chiro-Inositol effectively alleviates cholestasis by enhancing bile acid secretion and reducing oxidative stress. D-chiro-Inositol improves insulin resistance, lowers hyperglycemia and circulating insulin levels, reduces serum androgen levels, and ameliorates some metabolic abnormalities associated with X syndrome by mimicking the action of insulin. Additionally, D-chiro-Inositol can induce a reduction in pro-inflammatory factors (such as Nf-κB) and cytokines (such as TNF-α), thereby exerting anti-inflammatory effects. D-chiro-Inositol may be used in the study of liver cirrhosis, breast cancer, type 2 diabetes, and polycystic ovary syndrome.
    D-chiro-Inositol (Standard)
  • HY-111326AR
    Naphazoline nitrate (Standard)
    		Inhibitor
    Naphazoline (nitrate) (Standard) is the analytical standard of Naphazoline (nitrate). This product is intended for research and analytical applications. Naphazoline (Naphthazoline) nitrate is an α-adrenergic receptor agonist. Naphazoline nitrate reduces vascular hyperpermeability and promotes vasoconstriction. Naphazoline nitrate reduces the levels of inflammatory factors (TNF-α, IL-1β and IL-6), cytokines (IFN-γ and IL-4), IgE, GMCSF, and NGF. Naphazoline nitrate can be used for non-bacterial conjunctivitis research.
    Naphazoline nitrate (Standard)
  • HY-113402AR
    Gamma-glutamylcysteine TFA (Standard)
    		Inhibitor
    Gamma-glutamylcysteine (TFA) (Standard) is the analytical standard of Gamma-glutamylcysteine (TFA). This product is intended for research and analytical applications. Gamma-glutamylcysteine TFA (γ-Glu-Cys TFA) is an orally active, blood-brain barrier permeable dipeptide. Gamma-glutamylcysteine TFA activates AMPK, SIRT1, IL-4/STAT6, AC/cAMP/PI3K, IGF-1R/IRS1/PI3K, and Nrf2 signaling pathways; it inhibits NF-κB, JAK1/STAT1/3, MAPKs, cadmium-induced p38 MAPK, JNK, and PI3K/Akt signaling pathways. Gamma-glutamylcysteine TFA regulates macrophage polarization, modulates the trafficking of CD36 and GLUT4, induces glutathione synthesis, improves metabolic dysfunction, reduces lipid deposition, ameliorates glucose homeostasis, inhibits apoptosis (Apoptosis), stabilizes mitochondria, suppresses lipid peroxidation, iron accumulation and ferroptosis (Ferroptosis), reduces ds-HMGB1 levels, reverses mechanical hyperalgesia, and alleviates hepatic lipid droplet formation. Gamma-glutamylcysteine TFA is applicable to research related to inflammatory bowel disease, type 2 diabetes, cadmium-induced neurotoxicity, Alzheimer's disease, cerebral ischemia/reperfusion injury, neuropathy, and alcoholic liver disease.
    Gamma-glutamylcysteine TFA (Standard)
  • HY-160713
    Betamethasone succinate
    		Inhibitor
    Betamethasone succinate (NSSL-BMS) is a nano-formulation that can cross the blood-brain barrier. Betamethasone succinate is prepared by encapsulating the Betamethasone (HY-13570) semi-succinate in PEG-liposomes. Betamethasone succinate utilizes the enhanced permeation and retention effects of liposomes to target and deliver the potent glucocorticoid to the inflammatory sites. Betamethasone succinate inhibits the secretion of pro-inflammatory cytokines (such as TNF-α and IL-6) while maintaining the level of anti-inflammatory cytokine TGF-β. Betamethasone succinate can be used in the research of arthritis and cerebral malaria.
    Betamethasone succinate
  • HY-N0026R
    2'-Acetylacteoside (Standard)
    		Inhibitor
    2'-Acetylacteoside (Standard) is the analytical standard of 2'-Acetylacteoside (2'-AA) (HY-N0026). This product is intended for research and analytical applications. 2'-Acetylacteoside is a natural compound with oral activity and blood-brain barrier permeability. 2'-Acetylacteosideexhibits MAO‑B inhibitory activity (IC50 = 17.71 μM, Ki = 13.81 μM). 2'-Acetylacteoside downregulates the expression of RANK, TRAF6, NF‑κB, NFATc1 and IKKβ, disrupts the RANKL/RANK interaction, blocks downstream signaling pathways, and increases the level of phosphorylated Akt. 2'-Acetylacteoside possesses potent anti-osteoclastogenic, anti-bone resorptive, pro-neurogenic, neuroprotective and antioxidant activities. 2'-Acetylacteoside can be used in the research of osteoporosis, ischemic stroke and Parkinson's disease.
    2'-Acetylacteoside (Standard)
  • HY-N6927R
    Isoforskolin (Standard)
    		Inhibitor
    Isoforskolin (Standard) is the analytical standard of Isoforskolin. This product is intended for research and analytical applications. Isoforskolin is the principle active component of C. forskohlii native to China. Isoforskolin reduces the secretion of lipopolysaccharide (LPS)-induced cytokines, namely TNF-α, IL-1β, IL-6 and IL-8, in human mononuclear leukocytes. Isoforskolin acts as an anti-inflammatory agent for the treatment of Lyme arthritis.
    Isoforskolin (Standard)
  • HY-181507
    CD28-IN-3
    		Inhibitor
    CD28-IN-3 is a CD28 inhibitor with an IC50 of 7.80 μM and a Kd of 52.45 μM. CD28-IN-3 selectively blocks the CD28-B7 interaction, thereby inhibiting CD28-mediated costimulation. CD28-IN-3 suppresses the production of proinflammatory cytokines IFN-γ, IL-2 and TNF-α. CD28-IN-3 can be used in the research of checkpoint-resistant cancers.
    CD28-IN-3
  • HY-114360AS1
    Taurohyodeoxycholic acid-d4 sodium
    		Inhibitor
    Taurohyodeoxycholic acid-d4 (sodium) is a deuterated labeled Taurohyodeoxycholic acid (sodium). Taurohyodeoxycholic acid (THDCA) sodium is the taurine-conjugated form of the secondary bile acid hyodeoxycholic acid. Taurohyodeoxycholic acid can also reduce the activity and expression of myeloperoxidase TNF-α and IL-6, as well as colonic damage in TNBS-induced ulcerative colitis mouse model.
    Taurohyodeoxycholic acid-d<sub>4</sub> sodium
  • HY-10406R
    Talmapimod (Standard)
    		Inhibitor
    Talmapimod (Standard) is the analytical standard of Talmapimod (HY-10406). This product is intended for research and analytical applications. Talmapimod (SCIO-469) is an orally active and selective inhibitor of p38α MAPK with an IC50 of 9 nM. Talmapimod inhibits the secretion of inflammatory factors (such as TNFα, IL-1β, IL-6, and VEGF) by suppressing the p38α MAPK pathway, and it also inhibits angiogenesis and osteoclast activation. Talmapimod inhibits the growth of multiple myeloma cells and induces apoptosis. Talmapimod can be used to study various hematological malignancies (such as multiple myeloma, myelodysplastic syndrome).
    Talmapimod (Standard)
  • HY-N1508R
    Ecliptasaponin A (Standard)
    		Inhibitor
    Ecliptasaponin A (Standard) is the analytical standard for Ecliptasaponin A (HY-N1508). Ecliptasaponin A is an orally active pentacyclic triterpenoid saponin. Ecliptasaponin A exerts anti-tumor activity by activating ASK1/JNK pathway, inducing apoptosis and autophagy in lung cancer cells. Ecliptasaponin A exerts anti-inflammatory/anti-fibrotic effects and protects the cardiovascular system by inhibiting the HMGB1/TLR4/NF-κB pathway, and the expression of COX-2 and MMP-9. Ecliptasaponin A can enhance SOD activity, reduce MDA levels, and alleviate oxidative stress damage. Ecliptasaponin A exerts chondroprotective effects by inhibiting the expression of MMP13 and regulating inflammatory factors. Ecliptasaponin A improves ovarian function and regulates sex hormones by upregulating the expression of ESR1 receptors.
    Ecliptasaponin A (Standard)
  • HY-180271
    Xanthine oxidase-IN-21
    		Inhibitor
    Xanthine oxidase-IN-21, a Genipin (HY-17389) derivative, is an orally active mixed competitive xanthine oxidase (XOD) inhibitor with an IC50 of 0.68 μM. Xanthine oxidase-IN-21 reduces renal fibrosis by decreasing α-SMA expression and suppresses pro-inflammatory cytokines IL-1β, IL-6, and TNF-α through NF-κB pathway regulation. Xanthine oxidase-IN-21 also inhibits URAT1 and GLUT9 expression, promoting uric acid excretion and lowering serum uric acid levels. Xanthine oxidase-IN-21 shows significantly hepatorenal protection activity. Xanthine oxidase-IN-21 can be used for the research of hyperuricemia.
    Xanthine oxidase-IN-21
  • HY-N0346
    4-Methoxycinnamic acid ethyl ester
    		Inhibitor 98.72%
    4-Methoxycinnamic acid ethyl ester (Ethyl p-methoxycinnamate) is an orally active natural compound found. 4-Methoxycinnamic acid ethyl ester exerts anti-inflammatory effects by inhibiting cyclooxygenase (COX-1 (IC50 = 1.12 μM) and COX-2 (IC50 = 0.83 μM)), NF-κB (IC50 = 88.7 μM) and cytokine production (TNF-α (IC50 = 96.84 μg/mL) and IL-1β (IC50 = 166.4 μg/mL)). 4-Methoxycinnamic acid ethyl ester inhibits tumor cell proliferation, migration and cancer metabolism and induces apoptosis.4-Methoxycinnamic acid ethyl ester inhibits VEGF expression, thereby inhibiting angiogenesis. 4-Methoxycinnamic acid ethyl ester has a significant inhibitory effect on dengue virus and Mycobacterium tuberculosis. 4-Methoxycinnamic acid ethyl ester has analgesic effects in rats.
    4-Methoxycinnamic acid ethyl ester
  • HY-N7926R
    Pentadecane (Standard)
    		Inhibitor
    Pentadecane (Standard) is the analytical standard of Pentadecane (HY-N7926). This product is intended for research and analytical applications. Pentadecane is an orally active natural plant volatile alkane with anti-inflammatory, analgesic, antipyretic and anti-leishmanial activities. Pentadecane presents IC50 values of 65.3 μM, 60.5 μM and 194.8 μM against Leishmania infantum promastigotes, amastigotes and intracellular amastigotes, respectively. Pentadecane downregulates the mRNA expression of TNF-α and IL-12 and inhibits the release of inflammatory mediators. Pentadecane arrests the cell cycle of Leishmania infantum and induces apoptosis. Pentadecane can be applied to the research of inflammation and leishmaniasis.
    Pentadecane (Standard)
  • HY-15495B
    (3S)-Tanzisertib hydrochloride
    		Inhibitor
    (3S)-Tanzisertib (hydrochloride) ((3S)-CC-930 (hydrochloride)) is an orally active JNK inhibitor (IC50 values for JNK1, JNK2, and JNK3 are 61, 7, and 6 nM, respectively). (3S)-Tanzisertib (hydrochloride) selectively inhibits ERK1, p38α, and EGFR (IC50 = 0.48, 3.4, and 0.38 μM, respectively). (3S)-Tanzisertib (hydrochloride) inhibits LPS-induced TNFα production in an acute rat PK-PD model. (3S)-Tanzisertib (hydrochloride) can be used in idiopathic pulmonary fibrosis (IPF) research.
    (3S)-Tanzisertib hydrochloride
  • HY-100573R
    Necrosulfonamide (Standard)
    		Inhibitor
    Necrosulfonamide (Standard) is the analytical standard of Necrosulfonamide (HY-100573). This product is intended for research and analytical applications. Necrosulfonamide is a MLKL and Gasdermin D (GSDMD) inhibitor, capable of separately inhibiting necroptosis and pyroptosis of cells. Necrosulfonamide does not affect the activation of upstream signals, but specifically inhibits the downstream executor oligomerization step. Necrosulfonamide reduces the expression of the key kinases NLRP3 and caspase-1 involved in necroptosis and pyroptosis, activate the Nrf2 pathway and the downstream antioxidant enzymes, and also downregulates a variety of inflammatory factors. Necrosulfonamide plays significant roles in various diseases such as neurodegenerative diseases (such as Parkinson’s disease), tissue damage and ischemia-reperfusion injury, inflammatory bowel disease, osteoarthritis and fracture repair, and hair loss by regulating two important programmed necrosis pathways.
    Necrosulfonamide (Standard)
  • HY-12085S1
    Apremilast-d8
    		Inhibitor
    Apremilast-d8 (CC-10004-d8) is deuterium labeled Apremilast. Apremilast (CC-10004) is an orally available inhibitor of type-4 cyclic nucleotide phosphodiesterase (PDE-4) with an IC50 of 74 nM. Apremilast inhibits TNF-α release by lipopolysaccharide (LPS) with an IC50 of 104 nM.
    Apremilast-d<sub>8</sub>
  • HY-N3541
    Cardenolide B-1
    		Inhibitor
    Cardenolide B-1 is a Steroids product that can be isolated from the herbs of Nerium oleander.
    Cardenolide B-1
  • HY-107632G
    GYY4137 (GMP)
    		Inhibitor
    GYY4137 (GMP) is the GMP-grade version of GYY4137 (HY-107632). Small molecules of GMP grade can be used as adjuvant reagents in cell therapy. GYY4137 (GMP) is a sustained-release H2S donor possessing vasodilatory, antihypertensive, and anti-inflammatory activities. GYY4137 (GMP) can inhibit cell growth, induce apoptosis, and cause cell cycle arrest by blocking the STAT3 pathway, demonstrating potent anticancer activity.
    GYY4137 (GMP)
Cat. No. Product Name / Synonyms Species Source
Cat. No. Product Name / Synonyms Application Reactivity
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Download TNF Receptor Signaling Pathway Map.

Following the binding of TNF to TNF receptors, TNFR1 binds to TRADD, which recruits RIPK1, TRAF2/5 and cIAP1/2 to form TNFR1 signaling complex I; TNFR2 binds to TRAF1/2 directly to recruit cIAP1/2. Both cIAP1 and cIAP2 are E3 ubiquitin ligases that add K63 linked polyubiquitin chains to RIPK1 and other components of the signaling complex. The ubiquitin ligase activity of the cIAPs is needed to recruit the LUBAC, which adds M1 linked linear polyubiquitin chains to RIPK1. K63 polyubiquitylated RIPK1 recruits TAB2, TAB3 and TAK1, which activate signaling mediated by JNK and p38, as well as the IκB kinase complex. The IKK complex then activates NF-κB signaling, which leads to the transcription of anti-apoptotic factors-such as FLIP and Bcl-XL-that promote cell survival. 

 

The formation of TNFR1 complex IIa and complex IIb depends on non-ubiquitylated RIPK1. For the formation of complex IIa, ubiquitylated RIPK1 in complex I is deubiquitylated by CYLD. This deubiquitylated RIPK1 dissociates from the membrane-bound complex and moves into the cytosol, where it interacts with TRADD, FADD, Pro-caspase 8 and FLIPL to form complex IIa. By contrast, complex IIb is formed when the RIPK1 in complex I is not ubiquitylated owing to conditions that have resulted in the depletion of cIAPs, which normally ubiquitylate RIPK1. This non-ubiquitylated RIPK1 dissociates from complex I, moves into the cytosol, and assembles with FADD, Pro-caspase 8, FLIPL and RIPK3 (but not TRADD) to form complex IIb. For either complex IIa or complex IIb to prevent necroptosis, both RIPK1 and RIPK3 must be inactivated by the cleavage activity of the Pro-caspase 8-FLIPL heterodimer or fully activated caspase 8. The Pro-caspase 8 homodimer generates active Caspase 8, which is released from complex IIa and complex IIb. This active Caspase 8 then carries out cleavage reactions to activate downstream executioner caspases and thus induce classical apoptosis. 

 

Formation of the complex IIc (necrosome) is initiated either by RIPK1 deubiquitylation mediated by CYLD or by RIPK1 non-ubiquitylation due to depletion of cIAPs, similar to complex IIa and complex IIb formation. RIPK1 recruits numerous RIPK3 molecules. They come together to form amyloid microfilaments called necrosomes. Activated RIPK3 phosphorylates and recruits MLKL, eventually leading to the formation of a supramolecular protein complex at the plasma membrane and necroptosis [1][2].

 

Reference:
[1]. Brenner D, et al. Regulation of tumour necrosis factor signalling: live or let die.Nat Rev Immunol. 2015 Jun;15(6):362-74. 
[2]. Conrad M, et al. Regulated necrosis: disease relevance and therapeutic opportunities.Nat Rev Drug Discov. 2016 May;15(5):348-66. 
 

TNF Receptor Isoform Comparison

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