2. Signaling Pathways
  3. Immunology/Inflammation
  4. NOD-like Receptor (NLR)

NOD-like Receptor (NLR)

NOD-like Receptor (NLR)

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Nucleotide oligomerization domain (NOD)-like receptors (NLRs) are critical cytoplasmic pattern-recognition receptors (PRRs) that play an important role in the host innate immune response and immunity homeostasis. There are 23 NLR family members in humans and at least 34 NLR genes in mice. NLRs are expressed in many cell types including immune cells and epithelial cells, although certain NLR family members are expressed primarily in phagocytes including macrophages and neutrophils. The NLR family are most commonly classified according to their N-terminal domain, falling into one of four subfamilies; NLRA, NLRB, NLRC and NLRP.

The NLRs recognize various ligands from microbial pathogens (peptidoglycan, flagellin, viral RNA, fungal hyphae, etc.), host cells (ATPs, cholesterol crystals, uric acid, etc.), and environmental sources (alum, asbestos, silica, alloy particles, UV radiation, skin irritants, etc.). Most NLRs act as PRRs, recognizing the above ligands and activate inflammatory responses. However, some NLRs may not act as PRRs but instead respond to cytokines such as interferons. The activated NLRs show various functions that can be divided into four broad categories: inflammasome formation, signaling transduction, transcription activation, and autophagy.

NOD-like Receptor (NLR) Isoform Specific Products:

NOD-like Receptor (NLR) Isoform Comparison
Cat. No. Product Name Effect Purity Chemical Structure
  • HY-N12482
    Callicarboric acid A
    NLRP3-IN-27 (compound 1) is an inhibitor of NLRP3 with an IC50 value of 0.74 μM. NLRP3 reduces inflammasome-induced pyroptosis in J774A.1 cells. NLRP3-IN-27 can be isolated from Callicarpa arborea Rox.
    Callicarboric acid A
  • HY-N0442R
    5-O-Methylvisammioside (Standard)
    		Inhibitor
    5-O-Methylvisammioside (4'-O-β-D-Glucosyl-5-O-methylvisamminol) (Standard) is the analytical standard of 5-O-Methylvisammioside. This product is intended for research and analytical applications. 5-O-Methylvisammioside is an orally active natural chromone glycoside and multiple biological activities. 5-O-Methylvisammioside inhibits ferroptosis by activating the Nrf2/HO-1 signaling axis. 5-O-Methylvisammioside alleviates intestinal barrier damage by inhibiting the ROS/NF-κB/NLRP3 pathway. 5-O-Methylvisammioside exerts a protective effect against acute liver injury by reducing ALT/AST, decreasing inflammatory infiltration, and inhibiting IκB-α phosphorylation and NF-κB nuclear translocation. 5-O-Methylvisammioside blocks the HMGB1/RAGE/MEK/ERK signaling axis to exert anti-tumor and anti-angiogenic effects. 5-O-Methylvisammioside improves depression-like behaviors by inhibiting Src kinase and the NF-κB pathway.
    5-O-Methylvisammioside (Standard)
  • HY-N1431A
    Tabersonine hydrochloride
    		Inhibitor 98.55%
    Tabersonine hydrochloride is a selective, orally active NLRP3 inhibitor. Tabersonine hydrochloride directly binds to the NACHT domain of NLRP3, inhibiting its ATPase activity and oligomerization, thereby blocking ASC spot formation and caspase-1 activation, and reducing the release of pro-inflammatory cytokines such as IL-1β. Tabersonine hydrochloride also inhibits K63-linked ubiquitination of TRAF6, blocking NF-κB, PI3K/Akt, and p38 MAPK signaling pathways. Tabersonine hydrochloride can inhibit inflammatory responses, induce apoptosis of liver cancer cells through mitochondrial pathways and death receptor pathways, reduce mitochondrial membrane potential, promote cytochrome c release, and activate caspase proteins. Tabersonine hydrochloride is mainly used in the study of NLRP3-driven inflammatory diseases (such as acute lung injury, sepsis, peritonitis) and tumors such as liver cancer.
    Tabersonine hydrochloride
  • HY-162980
    NLRP3-IN-52
    		Inhibitor
    NLRP3-IN-52 (compund 1) is a NLRP3 inhibitor.
    NLRP3-IN-52
  • HY-N1939R
    Icariside I (Standard)
    		Agonist
    Icariside I (Standard) is the analytical standard of Icariside I (HY-N1939). This product is intended for research and analytical applications. Icariside I (GH01) is an orally active metabolite of icalin. Icariside I improves estrogen deficiency-induced osteoporosis by simultaneously regulating osteoblast and osteoclast differentiation. Icariside I promotes ATP (HY-B2176) or Nigericin (HY-127019)-induced mtROS production and NLRP3 inflammasome activation and causes idiosyncratic hepatotoxicity. Icariside I does not alter the activation of NLRC4 and AIM2 inflammasomes. Icariside I inhibits breast cancer proliferation, apoptosis, invasion, and metastasis by targeting the IL-6/STAT3 pathway. Icariside I is a kynurenine-AhR pathway inhibitor that alleviates cancer by blocking tumor immune escape.
    Icariside I (Standard)
  • HY-101868R
    INF39 (Standard)
    		Inhibitor
    INF39 (Standard) is the analytical standard of INF39 (HY-101868). This product is intended for research and analytical applications. INF39 is an irreversible and noncytotoxic NLRP3 inhibitor.
    INF39 (Standard)
  • HY-162992
    NLRP3-IN-53
    		Inhibitor
    NLRP3-IN-53 (compund 1) is a NLRP3 inhibitor with an IC50 of 3.4 nM.
    NLRP3-IN-53
  • HY-116084R
    Trimethylamine N-oxide (Standard)
    		Activator
    Trimethylamine N-oxide (Standard) is the analytical standard of Trimethylamine N-oxide. This product is intended for research and analytical applications. Trimethylamine N-oxide is a gut microbe-dependent metabolite of dietary choline and other trimethylamine-containing nutrients. Trimethylamine N-oxide induces inflammation by activating the ROS/NLRP3 inflammasome. Trimethylamine N-oxide also accelerates fibroblast-myofibroblast differentiation and induces cardiac fibrosis by activating the TGF-β/smad2 signaling pathway.
    Trimethylamine N-oxide (Standard)
  • HY-17629R
    Dapansutrile (Standard)
    		Inhibitor
    Dapansutrile (Standard) is the analytical standard of Dapansutrile. This product is intended for research and analytical applications. Dapansutrile is a potent, orally active and selective NLRP3 inflammasome inhibitor. Dapansutrile has anti-inflammatory activity and decreases immune factor levels. Dapansutrile can be used for research of inflammatory diseases.
    Dapansutrile (Standard)
  • HY-127090S
    Muramyl dipeptide-d3
    Muramyl dipeptide-d3 (MDP-d3) is the deuterium labeled Muramyl dipeptide. Muramyl dipeptide (MDP) is a synthetic immunoreactive peptide, consisting of N-acetyl muramic acid attached to a short amino acid chain of L-Ala-D-isoGln. Muramyl dipeptide is an inducer of bone formation through induction of Runx2. Muramyl dipeptide directly enhances osteoblast differentiation by up-regulating Runx2 gene expression through MAPK pathways. Muramyl dipeptide is a NLRP1 agonist .
    Muramyl dipeptide-d<sub>3</sub>
  • HY-12815AR
    MCC950 sodium (Standard)
    		Inhibitor
    MCC950 (sodium) (Standard) is the analytical standard of MCC950 (sodium). This product is intended for research and analytical applications. MCC950 sodium (CP-456773 sodium; CRID3 sodium salt) is a potent, selective NLRP3 inhibitor with IC50s of 7.5 and 8.1 nM in BMDMs and HMDMs, respectively.
    MCC950 sodium (Standard)
  • HY-100691R
    NOD-IN-1 (Standard)
    		Inhibitor
    NOD-IN-1 (Standard) is the analytical standard of NOD-IN-1 (HY-100691). This product is intended for research and analytical applications. NOD-IN-1 is a potent mixed inhibitor of nucleotide-binding oligomerization domain (NOD)-like receptors, NOD1 and NOD2, with IC50 of 5.74 μM and 6.45 μM, respectively.
    NOD-IN-1 (Standard)
  • HY-177447
    Human NLRP3 mRNA
    Human NLRP3 mRNA encodes the human NLRP3 protein, an inflammasome. NLRP3 belongs to the NLR protein family and plays a crucial role in immunity and human disease.
    Human NLRP3 mRNA
  • HY-168561
    NLRP3-IN-58
    		Inhibitor
    NLRP3-IN-58 (Compound DS15) is an inhibitor for the activation of NLRP3 inflammasome with an IC50 of 3.85 μM, and inhibits 33% IL-1β release at a concentration of 10 μM.
    NLRP3-IN-58
  • HY-N2414R
    Periplogenin (Standard)
    		Inhibitor
    Periplogenin (Standard) is the analytical standard of Periplogenin (HY-N2414). Periplogenin is an orally active cardiac glycoside found in Cortex periplocae. Periplogenin can induce ROS production and necroptosis and cause G0/G1 phase arrest. Periplogenin can inhibit pyroptosis by regulating the NLRP3/Caspase-1/GSDMD signaling. Periplogenin suppresses growth of prostate carcinoma cells by docking to an ATP1A1 protein pocket and forming a hydrogen bond with T804. Periplogenin can be used for the researches of cancer, inflammation and immunology, such as prostate carcinoma, rheumatoid arthritis and psoriasis.
    Periplogenin (Standard)
  • HY-168520
    NLRP3-IN-57
    		Inhibitor
    NLRP3-IN-57 (compound 5) inhibits the NLRP3 inflammasome, thereby reducing IL-1β levels in LPS plus Nigericin-induced THP-1 macrophages..
    NLRP3-IN-57
  • HY-164765
    NLRP3-IN-56
    		Inhibitor
    NLRP3-IN-56 (compound 062) is a NLRP3 inhibitor. NLRP3-IN-56 potently inhibits the level of IL-1β secretion by THP-1 cells with an IC50 of 9.7 nM. NLRP3-IN-56 can be used for the study of NLRP3-mediated symptoms and/or diseases.
    NLRP3-IN-56
  • HY-N0696R
    Sipeimine (Standard)
    		Inhibitor
    Sipeimine (Standard) is the analytical standard of Sipeimine (HY-N0696R). Sipeimine (Imperialine) is an inhibitor targeting the PI3K/AKT/NF-κB pathway and NLRP3 inflammasome, which can competitively bind to PI3K and p65. Sipeimine inhibits PI3K/AKT phosphorylation, blocks NF-κB nuclear translocation and NLRP3 inflammasome activation. Sipeimine exerts anti-inflammatory activities, inhibits pyroptosis and ferroptosis, and protects the extracellular matrix. Sipeimine can reduce cartilage degradation and synovial inflammation in osteoarthritis and improve PM2.5-induced lung injury. Sipeimine is mainly used in the study of anti-inflammatory and degenerative diseases.
    Sipeimine (Standard)
  • HY-N0772R
    Isomangiferin (Standard)
    		Inhibitor
    Isomangiferin (Standard) is the analytical standard of Isomangiferin (HY-N0772). This product is intended for research and analytical applications. Isomangiferin is an orally active xanthone C-glucoside, and its chemical structure is similar to Mangiferin (HY-N0290). Isomangiferin is an effective VEGFR-2 kinase inhibitor, which can induces cell apoptosis, inhibit the growth, metastasis and angiogenesis of breast cancer. Isomangiferin exerts anti-inflammatory effects by inhibiting the HMGB1/NLRP3/NF-κB signaling pathway, thereby improving the renal function indicators of diabetic mice. Isomangiferin exhibits inhibitory effects on various bacteria and herpes simplex virus type 1 (HSV-1). Isomangiferin promotes the migration and osteogenic differentiation of bone marrow mesenchymal stem cells (BMSCs) and reduces cell apoptosis and the production of ROS by activating the AMPK/ACC pathway, thereby facilitating fracture healing.
    Isomangiferin (Standard)
  • HY-108915R
    Trimethylamine N-oxide dihydrate (Standard)
    		Activator
    Trimethylamine N-oxide (dihydrate) (Standard) is the analytical standard of Trimethylamine N-oxide (dihydrate). This product is intended for research and analytical applications. Trimethylamine N-oxide dihydrate is a gut microbe-dependent metabolite of dietary choline and other trimethylamine-containing nutrients. Trimethylamine N-oxide dihydrate induces inflammation by activating the ROS/NLRP3 inflammasome. Trimethylamine N-oxide dihydrate also accelerates fibroblast-myofibroblast differentiation and induces cardiac fibrosis by activating the TGF-β/smad2 signaling pathway.
    Trimethylamine N-oxide dihydrate (Standard)
Cat. No. Product Name / Synonyms Species Source
Cat. No. Product Name / Synonyms Application Reactivity
NOD-like Receptor (NLR) Isoform Comparison

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