Chine Niclosamide 50-65-7 Fabricants

Niclosamide 50-65-7

Informations de base

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Poids moléculaire :
327,12 Le niclosamide peut inhiber la réplication de l'ADN et inhiber la STAT avec une CI50 de 0,7 M.
Activité biologique Niclosamide (le niclosamide est capable d'inhiber la réplication du SRAS-CoV à une concentration micromolaire dans Cellules Vero E6 infectées par le SRAS-CoV. Niclosamide (Le niclosamide inhibe l'activité du rapporteur NF-κB induite par le TNF d'une manière dépendante de la dose et du temps dans les cellules U2OS. Le niclosamide (125 nM) inhibe l'activation de NF-κB induite par p65, IKKα , IKKβ, IKKγ et TAK1 dans les cellules U2OS. Le niclosamide (40 mg/kg/j, ip) inhibe la croissance des cellules AML xénogreffées chez des souris nudes porteuses de tumeurs xénogreffes HL-60. Protocole (uniquement pour référence) Kinase Assay : [1]

Protein Kinase profiling assay	Assay for 22 different proteins kinases is carried out by ProQinase Gmbh. All of the protein kinases are expressed either in Sf9 insect cells or in E.coli as recombinant GST-fusion proteins or His-tagged proteins. Protein kinases are purified by affinity chromatography using either GSH-agarose or Ni_NTH-agarose. A radiometric protein kinase assay is used for measuring the kinase activity of the 22 protein kinases. Briefly, for each protein kinase, 50 μL reaction cocktail containing 60 mM HEPES-NaOH, 3 mM MgCl2, 3 mM MnCl2, 3 μM Na-orthovanadate, 1.2 mM DTT, 50 μg/mL PEG20000, 1 μM [γ-33P]-ATP, Niclosamide, adequate amount of enzyme and its substrate. The PKC-alpha assay additionally contain 1 mM Cacl2, 4 mM EDTA, 5 μg/mL phosphatidylserine and 1 μg/mL 1, 2-Dioleyl-glycerol. The reaction cocktails are incubated at 37 °C for 60 minutes and stop with 50 μL 2% (v/v) H3PO4. Incorporation of 33Pi is determined with a microplate scintillation counter. The activities and the IC50 values are calculated using Quattro Workflow V2.28.

Protein Kinase profiling assay

Assay for 22 different proteins kinases is carried out by ProQinase Gmbh. All of the protein kinases are expressed either in Sf9 insect cells or in E.coli as recombinant GST-fusion proteins or His-tagged proteins. Protein kinases are purified by affinity chromatography using either GSH-agarose or Ni_NTH-agarose. A radiometric protein kinase assay is used for measuring the kinase activity of the 22 protein kinases. Briefly, for each protein kinase, 50 μL reaction cocktail containing 60 mM HEPES-NaOH, 3 mM MgCl2, 3 mM MnCl2, 3 μM Na-orthovanadate, 1.2 mM DTT, 50 μg/mL PEG20000, 1 μM [γ-33P]-ATP, Niclosamide, adequate amount of enzyme and its substrate. The PKC-alpha assay additionally contain 1 mM Cacl2, 4 mM EDTA, 5 μg/mL phosphatidylserine and 1 μg/mL 1, 2-Dioleyl-glycerol. The reaction cocktails are incubated at 37 °C for 60 minutes and stop with 50 μL 2% (v/v) H3PO4. Incorporation of 33Pi is determined with a microplate scintillation counter. The activities and the IC50 values are calculated using Quattro Workflow V2.28.

Dosage cellulaire : [1]

Cell lines	Hela, A549, Du145, HT-29, A431, PC3 cells
Concentrations	16 μM
Incubation Time	72 hours
Method	Cells are plated in 96-well culture plates with cell density of 3-4 × 103 cells/well and treat with Niclosamide by adding 100 μL medium containing Niclosamide of various concentrations on the second day. After 72-hour's treatment, MTT is added to each well and incubated for additional 4-5 hours, and the absorbance is measured on a microplate reader at 570nm. Cell growth inhibition is evaluated as the ratio of the absorbance of the sample to that of the control. The results are representative of at least 3 independent experiments.

Étude animale : [4]

Animal Models	nude mice bearing HL-60 xenograft tumors.
Formulation	DMSO
Dosages	40 mg/kg
Administration	Intraperitoneal injection
Solubility	1% DMSO/30% polyethylene glycol/1% Tween 80, 30 mg/mL
* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.

Conversion de différents animaux modèles sur la base de la BSA (valeur basée sur les données des lignes directrices provisoires de la FDA)

Species	Baboon	Dog	Monkey	Rabbit	Guinea pig	Rat	Hamster	Mouse
Weight (kg)	12	10	3	1.8	0.4	0.15	0.08	0.02
Body Surface Area (m2)	0.6	0.5	0.24	0.15	0.05	0.025	0.02	0.007
Km factor	20	20	12	12	8	6	5	3

Animal A (mg/kg) = Animal B (mg/kg) multiplied by	Animal B Km
	Animal A Km

Par exemple, pour modifier la dose de resvératrol utilisée pour une souris (22,4 mg/kg) à une dose basée sur la BSA pour un rat, multiplier 22,4 mg/kg par le facteur Km pour une souris puis diviser par le facteur Km pour un rat. Ce calcul donne une dose équivalente chez le rat pour le resvératrol de 11,2 mg/kg.

Rat dose (mg/kg) = mouse dose (22.4 mg/kg) ×	mouse Km(3)	= 11.2 mg/kg
	rat Km(6)

Informations chimiques

Molecular Weight (MW)	327.12
Formula	C13H8Cl2N2O4
CAS No.	50-65-7

Storage	3 years -20℃Powder
Storage	6 months-80℃in solvent (DMSO, water, etc.)
Synonyms	Niclocide

Solubility (25°C) *	In vitro	DMSO	<1 mg/mL (
		Water	<1 mg/mL (
		Ethanol	<1 mg/mL (
	In vivo	1% DMSO/30% polyethylene glycol/1% Tween 80	30 mg/mL
* <1 mg/ml means slightly soluble or insoluble. * Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.