2. Neuronal Signaling GPCR/G Protein Metabolic Enzyme/Protease Anti-infection Cell Cycle/DNA Damage Epigenetics Apoptosis
  3. mAChR Indoleamine 2,3-Dioxygenase (IDO) Virus Protease Aurora Kinase Apoptosis Bacterial Parasite
  4. Palmatine

Palmatine is an orally active and irreversible indoleamine 2,3-dioxygenase 1 (IDO-1) inhibitor with IC50s of 3 μM and 157μM against HEK 293-hIDO-1 and rhIDO-1, respectively. Palmatine can also inhibit West Nile virus (WNV) NS2B-NS3 protease in an uncompetitive manner with an IC50 of 96 μM. Palmatine shows anti-cancer, anti-oxidation, anti-inflammatory, neuroprotection, antibacterial, anti-viral activities.

At equivalent molar concentrations, both the salt and free forms of a compound exhibit comparable biological activity. Nevertheless, the salt form (Palmatine hydroxide) usually boasts enhanced water solubility and stability.

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Palmatine Chemical Structure

Palmatine Chemical Structure

CAS No. : 3486-67-7

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Palmatine Related Antibodies

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IDO1 IDO2 IDO

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Aurora Kinase Aurora A Aurora B Aurora C

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Amebae Coccidia Leishmania Mite Plasmodium Toxoplasma Trypanosoma Schistosome

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Description

Palmatine is an orally active and irreversible indoleamine 2,3-dioxygenase 1 (IDO-1) inhibitor with IC50s of 3 μM and 157μM against HEK 293-hIDO-1 and rhIDO-1, respectively. Palmatine can also inhibit West Nile virus (WNV) NS2B-NS3 protease in an uncompetitive manner with an IC50 of 96 μM. Palmatine shows anti-cancer, anti-oxidation, anti-inflammatory, neuroprotection, antibacterial, anti-viral activities[1][2][3][4][5].

IC50 & Target[1]

IDO-1

3 μM (IC50, HEK 293-hIDO-1)

IDO-1

157 μM (IC50, rhIDO-1)

WNV NS2B-NS3

96 μM (IC50)

In Vitro

Palmatine (0-100 μM; 42 h) suppresses WNV with an EC50 value of 3.6 μM, and reduce the viral titers of DENV-2 and YFV with EC50 values of 26.4 μM and 7.3 μM, respectively[3].
Palmatine (0-1128 μM; 24-72 h) inhibits colon cancer cell proliferation[5].
Palmatine (0-704 μM; 24 h) reduces AURKA protein levels, induces G2/M phase arrest, and induces apoptosis in colon cancer cells via the mitochondrial associated pathway[5].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Palmatine Related Antibodies

Cell Proliferation Assay[5]

Cell Line: HCT-116, SW480, HT-29
Concentration: 0, 88, 176, 352, and 704 μM (HCT-116, SW480); 0, 141, 282, 564, and 1128 μM (HT-29)
Incubation Time: 24, 48 and 72 h
Result: Decreased cell viability in a dose-dependent manner.

Western Blot Analysis[5]

Cell Line: HCT-116, SW480, HT-29
Concentration: 100 nM for HCT-116, 500 nM for SW480 and HT-29
Incubation Time: 24 h
Result: Promoted the expression of apoptosis markers such as P53 / P73, Caspase3, and Caspase9. Reduced AURKA protein levels. Increased cyt. c in the cytoplasm while reduced Bcl2 and Bcl-xl in a dose-dependent manner.

Cell Cycle Analysis[5]

Cell Line: HCT-116, SW480
Concentration: 88, 176, 352 and 704 μM
Incubation Time: 24 h
Result: Induced G2/M phase arrest in a dose-dependent manner.

Apoptosis Analysis[5]

Cell Line: HCT-116, SW480
Concentration: 88, 176, 352 and 704 μM
Incubation Time: 24 h
Result: Induced apoptosis in a dose-dependent manner.
In Vivo

Palmatine (50 or 100 mg/kg; p.o.; daily for 7 days) ameliorates DSS (dextran sulfate sodium)-induced colitis and prevents infiltration of inflammatory cells[1].
Palmatine (0-200 mg/kg; i.p.; once) attenuates D-galactosamine/Lipopolysaccharides (HY-D1056)-induced fulminant hepatic failure in mice[2].
Palmatine (0-1 mg/kg; i.p.; 10 days) shows memory-enhancing activity in mice[4].
Palmatine (33.75-135 mg/kg; p.o.; daily for 26 days) can effectively inhibit the growth of HCT-116 xenografts in mice[5].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Animal Model: DSS- induced Colitis BALB/c mice model (8-week-old)[1]
Dosage: 50 or 100 mg/kg
Administration: Orally, daily, for 7 days
Result: Ameliorated DSS-induced colitis and prevented infiltration of inflammatory cells; remarkably extended the colon length; significantly suppressed the colonic MPO activity. Decreased the levels of colonic inflammatory cytokines (TNF-α, IFN-γ, IL-1β, IL-6, IL-4 and IL-10); Protected mucosal integrity by modulating TJs protein and apoptosis proteins; Restored DSS-induced decreases of TJ protein ZO-1, ZO-2 and claudin-1; Reduced Bax expression and enhanced Bcl-2 expression at the dose of 100 mg/kg, prevented epithelial apoptosis and improved intestinal integrity. Prevented DSS-induced changes of gut microbiota in colitis mice.
Animal Model: Male ICR mice (20–22 g), D-galactosamine/lipopolysaccharide (GalN/LPS)-induced fulminant hepatic failure model[2]
Dosage: 25, 50, 100, or 200 mg/kg
Administration: Intraperitoneal injection, 1 h before the GalN/LPS treatment
Result: Attenuated the mortality and serum aminotransferase activities increased by GalN/LPS. Prevented the increase of serum TNF-α and augmented that of serum IL-10. Decreased the TNF-a mRNA expression and increased the IL-10 mRNA expression. Attenuated the apoptosis of hepatocytes.
Animal Model: Swiss young male albino mice, with Scopolamine (HY-N0296)- and diazepam-induced amnesia model[4]
Dosage: 0.1, 0.5, 1 mg/kg
Administration: Intraperitoneal injection, 10 days
Result: Significantly improved learning and memory of mice at 0.5 and 1 mg/kg and did not show any significant effect on locomotor activity of the mice. Significantly reversed scopolamine- and diazepam-induced amnesia in mice. Significantly reduced brain acetylcholinesterase activity of mice.
Animal Model: BALB/c-nude mice, HCT-116 xenograft model[5]
Dosage: 33.75, 67.5 and 135 mg/kg
Administration: Oral administration, once a day for 26 days
Result: The tumor volume and weight of the treatment group were significantly reduced.
Molecular Weight

352.40

Formula

C21H22NO4+
CAS No.
Appearance

Solid

Color

Light yellow to yellow

SMILES

COC1=C(OC)C2=C[N+]3=C(C4=CC(OC)=C(OC)C=C4CC3)C=C2C=C1
Structure Classification
Initial Source
Shipping

Room temperature in continental US; may vary elsewhere.
Storage

4°C, protect from light

*In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)

Purity & Documentation
References
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Palmatine Related Classifications

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Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

Keywords:

Palmatine3486-67-7mAChRIndoleamine 2,3-Dioxygenase (IDO)Virus ProteaseAurora KinaseApoptosisBacterialParasiteMuscarinic acetylcholine receptorcolitisInflammatory bowel diseaseIBDIDO-1ulcerativeCrohn’s diseaseUDCDWest Nile virusNS2B-NS3fulminant hepatic failurememory-enhancingInhibitorinhibitorinhibit

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