Toll-like Receptor (TLR) Activator

Toll-like Receptor (TLR) Activators (28):

Cat. No.	Product Name	Effect	Purity

HY-129522

Sulfo-ara-F-NMN	Activator	99.36%
Sulfo-ara-F-NMN (CZ-48) is a mimetic of nicotinamide mononucleotide (NMN). Sulfo-ara-F-NMN acts selectively, activating SARM1 but inhibiting CD38 (IC₅₀ around 10 μM). Sulfo-ara-F-NMN induces intracellular cyclic ADP-ribose (cADPR) production.

HY-P10586A

Macrophage-activating lipopeptide 2 TFA	Activator	98.60%
Macrophage-activating lipopeptide 2 TFA is an agonist of Toll like receptors TLR-2/TLR-6. Macrophage-activating lipopeptide-2 enhances endothelial nitric oxide synthase (eNOS) phosphorylation and endothelial cell release of NO, thereby improving vasodilation. Macrophage-activating lipopeptide-2 enhances endothelial adhesion of white blood cells and improve perfusion recovery and collateral growth in the hind limbs of hypercholesterolemic Apoe deficient mice undergoing experimental femoral artery ligation (FAL).

HY-131166

Curdlan	Activator	98.5%
Curdlan is a polysaccharide found in bacteria, consisting of a glucose homopolymer with β-1,3-glycosidic linkages. Curdlan can be recognized by Dectin-1 (a C-type lectin receptor), inducing immune responses in tissue mast cells and enhancing dendritic cell effects in tumor immunity. Curdlan holds potential for research in cancer and immune-inflammatory diseases.

HY-150741C

ODN 2216 sodium	Activator
ODN 2216 sodium is a human-specific TLR9 (toll-like receptor 9) ligand or agonist. ODN 2216 sodium induces high amounts of IFN-α and IFN-β. ODN 2216 sodium induces IFN-α by pDC (plasmacytoid DC) and IL-12 (p40) production by DC (dendritic cells). ODN 2216 sodium stimulates IFN-γ production in peripheral blood mononuclear cells (PBMC), which is indirect and mediated by IFN-α/β. ODN 2216 sodium can activate NK cells and promote IFN-γ production of TCR-triggered CD4⁺ T cells.

HY-134816

D-Glucan	Activator
D-Glucan is an orally effective Dectin-1 receptor immune activator with antioxidant properties (reducing TNF-α). D-Glucan activates macrophages and neutrophils to scavenge free radicals, inhibit oxidative stress and inflammatory responses, and improve insulin sensitivity. D-Glucan promotes glycolysis by enhancing the activity of the antioxidant enzyme glutathione, inhibiting gluconeogenesis and activating GK. D-Glucan can be used in the research of liver damage protection (antagonizing Acetaminophen (HY-66005) toxicity), radiation protection (synergistic with vitamin E) and diabetes (improving glucose metabolism).

HY-D1056B3

Lipopolysaccharides, from Klebsiella pneumoniae	Activator
Lipopolysaccharides, from Klebsiella pneumoniae (LPS, from bacterial (Klebsiella pneumoniae)) are lipopolysaccharide endotoxins and TLR4 activators derived from Klebsiella pneumoniae, and are classified as S-type LPS. Lipopolysaccharides, from Klebsiella pneumoniae exhibit a typical three-part structure: O-antigen, core oligosaccharide, and lipid A. Lipopolysaccharides, from Klebsiella pneumoniae may participate in bacterial immune evasion by inhibiting complement-mediated killing and suppressing the host's secretion of antimicrobial peptides, thereby allowing the bacteria to escape immune defenses. Lipopolysaccharides, from Klebsiella pneumoniae possess high viscosity and resistance to serum-mediated killing, which may lead to sepsis. Lipopolysaccharides, from Klebsiella pneumoniae can be used to construct animal models of sepsis.

HY-D1056A2

Lipopolysaccharides, from E. coli O127:B8	Activator
Lipopolysaccharides, from E. coli O127:B8 (LPS, from Escherichia coli (O127:B8)) are endotoxins and TLR4 activators extracted from Escherichia coli (E. coli O127:B8) and are classified as S (smooth) type LPS. Lipopolysaccharides, from E. coli O127:B8 possess the typical three-part structure: O-antigen, R3-type core oligosaccharide, and lipid A. Lipopolysaccharides, from E. coli O127:B8 activate TLR-4 in immune cells, can induce inflammatory responses and ileal contractility, and can be used to construct intestinal inflammation models.

HY-D1056H

Lipopolysaccharides, from S. marcescens	Activator
Lipopolysaccharides, from S. marcescens (Serratia marcescens) are lipopolysaccharide endotoxins and TLR-4 activators derived from Serratia marcescens, classified as S-type LPS, which can activate pathogen-associated molecular patterns (PAMP) of the immune system and induce cellular secretion of migrasomes. Lipopolysaccharides, from S. marcescens exhibit a typical three-part structure: O-antigen (O-antigen), core oligosaccharide (core oligosaccharide), and lipid A (Lipid A). Lipopolysaccharides, from S. marcescens induce NF-κB activation in mouse cells via Toll-like receptor (TLR4)/MD-2. The lipopolysaccharides of S. marcescens can induce apoptosis in host immune cells, thereby suppressing the host's innate immunity.

HY-D1056E

Lipopolysaccharides, from P. aeruginosa 10	Activator
Lipopolysaccharides from P. aeruginosa (Pseudomonas aeruginosa) 10 are lipopolysaccharide endotoxins and TLR4 activators derived from Pseudomonas aeruginosa 10, and are classified as S-type LPS. Lipopolysaccharides from P. aeruginosa 10 exhibit a typical three-part structure: O-antigen, core oligosaccharide, and lipid A. The lipopolysaccharides of P. aeruginosa 10 have a fatty acid composition distinct from common enterobacteria, an exceptionally high degree of phosphorylation (triphosphate residues have been detected), and a unique outer region of the core oligosaccharide. Additionally, their O-specific side chains are typically rich in novel aminosugars. Lipopolysaccharides from P. aeruginosa 10 demonstrate susceptibility to viruses, with the level of susceptibility determined by the content of high molecular weight polysaccharides in their composition. The absence of high molecular weight polysaccharides increases their sensitivity to bacteriophages.

HY-D1056A3

Lipopolysaccharides, from E. coli O26:B6	Activator
Lipopolysaccharides, from E. coli (Escherichia coli) O26:B6 are lipopolysaccharide endotoxins and TLR-4 activators derived from E. coli, classified as S-type LPS, which can activate pathogen-associated molecular patterns (PAMP) of the immune system and induce cellular secretion of migrasomes. Lipopolysaccharides, from E. coli O26:B6 exhibit a typical three-part structure: O-antigen (O-antigen), core oligosaccharide (core oligosaccharide), and lipid A (Lipid A), and can be recognized by the core-specific monoclonal antibody MAb J8-4C10. Lipopolysaccharides, from E. coli O26:B6 can promote an increase in pro-inflammatory cytokines in plasma, thereby triggering hypothalamic-pituitary-adrenal (HPA) activation and leading to adrenal oxidative damage. The pathogenic effects of Lipopolysaccharides, from E. coli O26:B6 can be blocked by PD149163 (HY-123434).

HY-B0892R

Benzyl alcohol (Standard)	Activator
Benzyl alcohol (Standard) is the analytical standard of Benzyl alcohol. This product is intended for research and analytical applications. Benzyl alcohol is an aromatic alcohol, a colorless liquid with a mild aromatic odor.

HY-160231

ssRNA42 sodium	Activator
ssRNA42 (sodium) is a 20-mer phosphothioate protected single-stranded RNA oligonucleotide. ssRNA42 (sodium) derives from ssRNA40 by replacement of all G nucleotides with adenosine. ssRNA42 activated human PBMCs to secrete IFN-α, TNF-a, IL- 12p40, and IL-6, but ssRNA42 failed to stimulated murine pDCs and PBMCs.

HY-D1056C3

Lipopolysaccharides, from S. enterica serotype typhimurium	Activator
Lipopolysaccharides, from S. enterica (Salmonella enterica) serotype typhimurium are lipopolysaccharide endotoxins and TLR4 activators derived from serotype typhimurium of Salmonella enterica, and are classified as S-type LPS. Lipopolysaccharides, from S. enterica exhibit a typical three-part structure: O-antigen, core oligosaccharide, and lipid A. Lipopolysaccharides, from S. enterica serotype typhimurium can modulate the fate of bacteria in dendritic cells (DC), determining the uptake, degradation, and activation of immune functions by DC cells against the bacteria.

HY-D1056C1

Lipopolysaccharides, from S. enterica serotype enteritidis	Activator
Lipopolysaccharides, from S. enterica (Salmonella enterica) serotype enteritidis are lipopolysaccharide endotoxins and TLR-4 activators derived from the enteritidis serotype of S. enterica, classified as S-type LPS, which can activate pathogen-associated molecular patterns (PAMP) of the immune system and induce cellular secretion of migrasomes. Lipopolysaccharides, from S. enterica serotype enteritidis exhibit a typical three-part structure: O-antigen, core oligosaccharide, and lipid A. Lipopolysaccharides, from S. enterica serotype enteritidis can induce systemic inflammatory responses, increasing levels of TNF-α, IFN-γ, IL-6, IL-10, and nitrate in plasma.

HY-159748

M402	Activator
M402 is a vaccine adjuvant and a key component in vaccines. Adjuvants can be divided into immunostimulants and delivery systems. Adjuvants can not only enhance the intensity and durability of immune responses, but also affect the type of immune responses. On the one hand, immunostimulants promote the production of antigen signals and co-stimulatory signals by targeting Toll-like receptors (TLRs) and other pattern recognition receptors (PRRs), leading to the maturation and activation of antigen presenting cells (APCs), thereby enhancing adaptive immune responses; on the other hand, delivery systems are carrier materials that promote antigen delivery by prolonging the bioavailability of loaded antigens and targeting antigens to lymph nodes or APCs. Several common adjuvants include: saponins, TLRs agonists, polysaccharides, nanoparticles, cytokines, and mucosal adjuvants.

HY-159753

HS105	Activator
HS105 is a vaccine adjuvant and a key component in vaccines. Adjuvants can be divided into immunostimulants and delivery systems. Adjuvants can not only enhance the intensity and durability of immune responses, but also affect the type of immune responses. On the one hand, immunostimulants promote the production of antigen signals and co-stimulatory signals by targeting Toll-like receptors (TLRs) and other pattern recognition receptors (PRRs), leading to the maturation and activation of antigen presenting cells (APCs), thereby enhancing adaptive immune responses; on the other hand, delivery systems are carrier materials that promote antigen delivery by prolonging the bioavailability of loaded antigens and targeting antigens to lymph nodes or APCs. Several common adjuvants include: saponins, TLRs agonists, polysaccharides, nanoparticles, cytokines, and mucosal adjuvants.

HY-D1056A5

Lipopolysaccharides, from E. coli K-235	Activator
Lipopolysaccharides, from E. coli (Escherichia coli) K-235 are lipopolysaccharide endotoxins and TLR-4 activators derived from E. coli, classified as S-type LPS, which can activate pathogen-associated molecular patterns (PAMP) of the immune system and induce cellular secretion of migrasomes. Lipopolysaccharides, from E. coli K-235 exhibit a typical three-part structure: O-antigen (O-antigen), core oligosaccharide (core oligosaccharide), and lipid A (Lipid A). Lipopolysaccharides, from E. coli K-235 have a mitogenic effect on C57BL/10ScN spleen cells. Additionally, LPS purified using butanol and deoxycholic acid methods stimulates spleen cells in C57BL/10ScCR and C3H/HeJ mice.

HY-D1056C4

Lipopolysaccharides, from S. enterica serotype abortus equi	Activator
Lipopolysaccharides, from S. enterica (Salmonella enterica) serotype Abortusequi are lipopolysaccharide endotoxins and TLR-4 activators derived from the Abortusequi serotype of S. enterica, classified as a mutated R-type LPS, which can activate pathogen-associated molecular patterns (PAMP) of the immune system and induce cellular secretion of migrasomes. Lipopolysaccharides, from S. enterica serotype abortus equi consist of core oligosaccharide (core oligosaccharide) and lipid A (Lipid A). S. enterica serotype Abortusequi is a major pathogen causing abortion in mares and is also associated with neonatal sepsis, multiple abscesses, orchitis, and polyarthritis in equids. It is primarily grouped based on lipopolysaccharides (O-antigen) and flagellin (H-antigen).

HY-144497

HE-S2	Activator
HE-S2 is an antibody-drug conjugate triggering a potent antitumor immune response. HE-S2 acts by blocking the PD-1/PD-L1 interaction and activating the Toll-like receptor 7/8 (TLR7/8) signaling pathway. HE-S2 has remarkable antitumor activity.

HY-111782

8-Mercaptoguanosine	Activator
8-Mercaptoguanosine is an immunoadjuvant that affects the in vivo antibody response to the T-cell-independent antigen TNP-Ficoll. 8-Mercaptoguanosine enhances IgG1, IgG2, and IgG3 antibody responses, but has no effect on IgM antibody responses. 8-Mercaptoguanosine also enhances antibody responses to very weak antigens such as pneumococcal polysaccharide and restores antibody responses in immunodeficient xid mice that are non-reactive to TNP-Ficoll.

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