Histamine Receptor
Histamine receptors are G protein-coupled receptors through which histamine regulates proliferation, apoptosis, differentiation, immune signaling, and tissue-specific cellular responses[1]. Mechanistically, H1R and H2R stimulate cholangiocyte proliferation through Ca2+- and cAMP-dependent pathways, whereas H3R and H4R inhibit biliary growth during cholangiocyte hyperplasia or cholangiocarcinoma models[1]. In inflammation-associated colorectal cancer, H1R shows protumorigenic activity, while H2R shows antitumorigenic activity by suppressing MAPK phosphorylation and chemokine gene expression[2]. Compared with related isoforms, H4R is preferentially expressed in bone marrow progenitor populations and mediates growth factor-induced cell-cycle arrest through a cAMP/PKA-dependent pathway rather than apoptosis[3]. For experimental applications, H1R antagonism and H2R activation can be combined to suppress lipopolysaccharide-induced MAPK signaling, while H3R or H4R agonists provide tools to reduce biliary proliferation or cholangiocarcinoma growth[1][2].
References:
- [1]. Francis H, et al. Histamine regulation of biliary proliferation. J Hepatol. 2012 May;56(5):1204-1206. [Content Brief]
- [2]. Shi Z, et al. Distinct roles of histamine H1- and H2-receptor signaling pathways in inflammation-associated colonic tumorigenesis. Am J Physiol Gastrointest Liver Physiol. 2019 Jan 1;316(1):G205-G216. [Content Brief]
- [3]. Petit-Bertron AF, et al. H4 histamine receptors mediate cell cycle arrest in growth factor-induced murine and human hematopoietic progenitor cells. PLoS One. 2009 Aug 7;4(8):e6504. [Content Brief]
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Histamine Receptor Inhibitors
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Histamine Receptor Agonists
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Histamine Receptor Antagonists
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Histamine Receptor Ligand
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Histamine Receptor Related Products (517)
Related Products (517)
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Bisfentidine
0 ImagesCat. No.: HY-160979CAS No.: 96153-56-9Synonyms: DA-5047Bisfentidine is an H2 receptor antagonist, Bisfentidine can block the H2 receptor on the cells of the stomach wall, and reduce the secretion of stomach acid. Bisfentidine binds to cytochrome P-450 in liver microsomes and affects drug metabolism. Bisfentidine can be used in the study of metabolic processes of drugs, lipid peroxidation processes and peptic ulcers diseases.
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Clemastine fumarate (Standard)
0 ImagesSynonyms: HS-592 fumarate (Standard); Meclastine fumarate (Standard)Clemastine (HS-592; Meclastine) fumarate (Standard) is the analytical standard of Clemastine fumarate. This product is intended for research and analytical applications. Clemastine fumarate is an orally active, blood-brain barrier-permeable H1 histamine receptor (H1 histamine receptor) antagonist with potent antiallergic effects. Clemastine fumarate also antagonizes muscarinic acetylcholine receptors (mAChR), particularly the M1 and M4 subtypes. In addition to antihistamine effects, Clemastine fumarate exhibits multiple pharmacological activities, especially in promoting central nervous system remyelination, activating autophagy and pyroptosis, exerting anti-apoptotic and neuroprotective effects, and suppressing inflammation .
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Dimethothiazine
0 ImagesDimethothiazine (Dimetotiazine; Fonazine) is an orally active tricyclic anti-histamine, anti-5-HT agent with a high activity against decerebrate rigidity, a little sedative activity and little soporific action. Dimethothiazine can reduce or abolish the effects of both static and dynamic fusimotor activity on the muscle spindle in decerebrate cat. Dimethothiazine can be used to research hemicrania and spasticity.
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PF-03654746
0 ImagesPF-03654746 is a potent and selective histamine H3 receptor antagonist with high brain penetration. PF-03654746 reduces allergen-induced nasal symptoms, might be a novel therapeutic strategy to further explore allergic rhinitis. PF-03654746 improves cognitive efficacy and disease-modifying effects in Alzheimer's disease (AD).
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Z-300
0 ImagesCat. No.: HY-19170CAS No.: 128289-57-6Z-300 is a selective and orally active histamine H2-receptor antagonist. Z-300 inhibits acid secretion and promotes gastric mucus metabolism in the corpus region.
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AM-0466
0 ImagesCat. No.: HY-135495CAS No.: 1642113-59-4AM-0466 is a sodium channel inhibitor with nanomolar levels of NaV1.7 inhibitory activity. AM-0466 exhibits potent pharmacodynamic activity in a NaV1.7-dependent histamine-induced itch model. AM-0466 also showed significant analgesic effects in capsaicin-induced pain models. After optimizing its pharmacokinetic properties, AM-0466 was advanced into in vivo targeting and efficacy models for testing.
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Toladryl (Standard)
0 ImagesCat. No.: HY-138110RCAS No.: 19804-27-4Synonyms: 4-Methyldiphenhydramine (Standard)Toladryl (Standard) is the analytical standard of Toladryl. This product is intended for research and analytical applications. Toladryl is a derivative of Diphenhydramine (HY-B0303), capable of penetrating the blood-brain barrier and possessing oral activity, as well as antihistamine and anticholinergic activities. The anticholinergic activity of Toladryl is approximately one-tenth that of Diphenhydramine (HY-B0303), and its protective effect against lethal doses of histamine in guinea pigs is 2 to 4 times that of Diphenhydramine (HY-B0303). The side effects of Toladryl are fewer and milder than those of Diphenhydramine (HY-B0303), but at higher doses, it may cause central nervous system symptoms such as insomnia, agitation, and disorientation. Toladryl can be used for research in allergic diseases.
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Nebidrazine
0 ImagesCat. No.: HY-155297CAS No.: 55248-23-2Synonyms: FLA-136Nebidrazine is a centrally-acting hypotensive agent compared to clonidine, demonstrating weaker cardiovascular effects in rats. It induces dose-dependent hypotension and bradycardia when administered intracerebroventricularly (i.c.v.), with significantly lower sedative potential than clonidine in conscious rats. Yohimbine attenuates the cardiovascular effects of both Nebidrazine and clonidine, suggesting involvement of central alpha-autoreceptors sensitive to yohimbine. Unlike clonidine, Nebidrazine does not affect peripheral alpha-adrenoceptors in pithed rats, indicating a selective central mechanism. Chemical sympathectomy reduces Nebidrazine's cardiovascular effects more than clonidine's, and metiamide diminishes responses to both drugs, implicating central histamine receptors. These findings highlight Nebidrazine's distinct pharmacological profile and potential therapeutic application in managing hypertension through central alpha-autoreceptor stimulation.
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(Z)-Lafutidine
0 ImagesSynonyms: (Z)-FRG-8813(Z)-Lafutidine ((Z)-FRG-8813) is a potent histamine H2 receptor antagonist. (Z)-Lafutidine shows anti-secretory and gastroprotective activities.
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N-Acetyldesloratadine
0 ImagesSynonyms: SCH-37370N-Acetyldesloratadine (SCH-37370) is a potent, orally active dual antagonist of platelet-activating factor (PAF) and histamine. N-Acetyldesloratadine inhibits PAF-induced aggregation of human platelets, with an IC50 of 0.6 µM. N-Acetyldesloratadine can be used for the study of allergic diseases, such as asthma.
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VUF 8430
0 ImagesCat. No.: HY-108977CAS No.: 98021-17-1VUF 8430 is a potent and selective histamine H4 receptor agonist with a Ki of 31.6 nM and an EC50 of 50 nM.
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Meclizine-d8
0 ImagesCat. No.: HY-B0349SCAS No.: 1246816-06-7Synonyms: Meclozine-d8Meclizine-d8 is a deuterium labeled Meclizine. Meclizine is a histamine H1 receptor antagonist and has the potential to treat nausea and motion sickness. Meclizine is an agonist ligand for mouse constitutive androstane receptor (CAR) and an inverse agonist for Human CAR.
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Bepotastine-d6 besylate
0 ImagesCat. No.: HY-A0015SBepotastine-d6(besylate) is deuterium labeled Bepotastine (besilate). Bepotastine besilate is a selective and orally active second-generation histamine H1 receptor antagonist, can suppress the expression of nerve growth factor (NGF). Bepotastine besilate has the potential for allergic rhinitis, allergic conjunctivitis and urticaria/pruritus research.
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Fexofenadine-d10
0 ImagesCat. No.: HY-B0801S3CAS No.: 1215900-18-7Fexofenadine-d10 is deuterium labeled Fexofenadine.
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Histamine phosphate (Standard)
0 ImagesHistamine phosphate (Standard) is the analytical standard of Histamine phosphate (HY-A0129). This product is intended for research and analytical applications. Histamine phosphate is the agonist for histamine receptor and a vasodilator. Histamine phosphate is an organic nitrogen compound that participates in local immune responses, regulates intestinal physiological functions, and acts as a neurotransmitter. Histamine phosphate affects p38 MAPK/Akt signaling pathway, exhibits antitumor, antioxidant and anti-inflammatory activities. Histamine phosphate can be used in the research of acute myeloid leukemia, malignant melanoma, and renal cell carcinoma.
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VUF 4904
0 ImagesCat. No.: HY-117538CAS No.: 397248-40-7VUF 4904 is an impentamine analog and a neutral antagonist of the histamine H3 receptor. VUF 4904 can be used in the research of diseases related to the function of the H3 receptor, such as Alzheimer's disease.
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Antazoline hydrochloride (Standard)
0 ImagesAntazoline (hydrochloride) (Standard) is the analytical standard of Antazoline (hydrochloride). This product is intended for research and analytical applications. Antazoline hydrochloride is a histamine H1 receptor antagonist with anticholinergic and antiviral properties. Antazoline hydrochloride can prevent histamine from acting on target cells through a reversible competition effect on histamine receptor sites of these cells. Antazoline hydrochloride can exert an antiallegic effect and prevent the occurrence of physiological reactions from the effect of blocking as well as inhibiting H1 receptor. Antazoline hydrochloride can effectively reduce HBV DNA in the extracellular supernatant in a dose-dependent manner, with EC50 of 2.910 μmol/L in HepAD38 cells. Antazoline hydrochloride also has a significant inhibitory effect on HBV DNA in the extracellular supernatant of Huh7 cells (EC50 = 2.349 μmol/L). Antazoline hydrochloride has anti-arrhythmic effect in acute myocardial infarctions. Antazoline hydrochloride can be studied in research for cardiovascular diseases, and HBV.
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(Z)-Olopatadine-d3 hydrochloride
0 ImagesCat. No.: HY-B0426AS1(Z)-Olopatadine-d3 (hydrochloride) is deuterium labeled Olopatadine (hydrochloride).
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6-O-Senesioyl plenolin
0 ImagesCat. No.: HY-N19243CAS No.: 90042-11-86-O-Senesioyl plenolin is a sesquiterpene lactone found in Centipeda minima with antiallergic activity. 6-O-Senesioyl plenolin inhibits histamine release from mast cells (IC50 = 18 μM) and suppresses pigment exudation in passive cutaneous anaphylaxis tests. 6-O-Senesioyl plenolin can be used in research related to allergy.
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(±)-Carbinoxamine
0 Images(±)-Carbinoxamine is a blood-brain barrier-permeable histamine H1 receptor antagonist. (±)-Carbinoxamine blocks the action of histamine on H1 receptors, reducing symptoms such as sneezing, rhinitis, rhinorrhea, erythema, pruritus and urticaria. (±)-Carbinoxamine inhibits influenza virus entry into cells via endocytosis, targets the early stage of the viral life cycle, and simultaneously reduces viral replication levels in the lungs, alleviating pathological damage and inflammatory responses in lung tissues. (±)-Carbinoxamine can be used in research on allergic rhinitis, influenza, etc.
