.cp_wz tabla {borde superior: 1px sólido #ccc; borde izquierdo: 1px sólido #ccc; } .cp_wz table td {borde derecho: 1px sólido #ccc; borde inferior: 1px sólido #ccc; padding: 5px 0px 0px 5px;} .cp_wz table th {border-right: 1px solid #ccc; border-bottom: 1px solid #ccc; relleno: 5px 0px 0px 5px;} \ n Peso molecular: \ n 425.42 Skepinone-L es un inhibidor selectivo de p38α-MAPK con IC50 de 5 nM. \ n Actividad biológica Skepinone-L muestra inhibición dependiente de la concentración de la fosforilación de HSP27 (Ser82) a través de la vía p38 MAPK con una CI50 celular de aproximadamente 25 nM, y también reduce las concentraciones de TNF-α, IL-1β e IL-10, reguladas por p38 MAPK, con una CI50 en el rango de 30 a 50 nM. Skepinone-L (1 μM) anula la fosforilación del sustrato de MAPK p38 plaquetario Hsp27 activado por estimulación con CRP, trombina o análogo de tromboxano A2 U-46619, y altera la secreción y agregación plaquetarias. In vivo, skepinone-L inhibe la liberación de TNF-α inducida por Gal / LPS en un 77%. Protocolo (solo como referencia) Ensayo de quinasa: [1]
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Cell-free p38α-MAPK activity assay
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Microtiter plates are coated with 50 μl of ATF-2 (10 μ/mL in TBS) for 1.5 h at 37 °C, washed with bidistilled water, blocked with blocking buffer (BB; 0.05% Tween 20, 0.25% BSA, 0,02% NaN3 in TBS) for 30 min at room temperature, and washed again. 50 μL of the respective test solution is incubated for 1 h at 37 °C. Test solutions contained 12 ng/well p38-MAPK diluted in kinase buffer (50 mM Tris, pH 7.5, 10 mM MgCl2, 10 mM β-glycerophosphate, 100 μg/mL BSA, 1 mM dithiothretiol, 0.1 mM Na3VO4, 100 μM rATP) with or without test substance (10 nM-100 μM). Test substances are dissolved in dimethyl sulfoxide to form stock solutions of 10 mM, all further dilution steps are carried out in kinase buffer. After subsequent washing, plates are blocked again with BB for 15 min followed by a washing step. 1. AB (50 μL, 1:500 in BB) was incubated for 1 h at 37 °C followed by washing and incubation with 50 μL of the 2. AB (alkaline phosphatase conjugated) (1:4000 in BB). After a final washing step, 100 μL of 4-nitrophenyl phosphate (NPP) is pipetted in each well and colour development was measured 1.5–2 h later with an enzyme-linked immunosorbent assay reader equipped with the SOFTmax PRO software at 405 nm.
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Estudio con animales: [1]
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Animal Models
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Mice
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Formulation
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Methyl cellulose
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Dosages
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~3 mg/kg
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Administration
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Oral administration
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Solubility
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0.5% methylcellulose,
30 mg/mL
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* 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.
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Conversión de diferentes modelos de animales basados en BSA (valor basado en datos del Borrador de Directrices de la FDA)
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Species
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Baboon
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Dog
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Monkey
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Rabbit
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Guinea pig
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Rat
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Hamster
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Mouse
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Weight (kg)
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12
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10
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3
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1.8
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0.4
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0.15
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0.08
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0.02
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Body Surface Area (m2)
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0.6
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0.5
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0.24
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0.15
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0.05
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0.025
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0.02
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0.007
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Km factor
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20
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20
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12
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12
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8
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6
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5
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3
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Animal A (mg/kg) = Animal B (mg/kg) multiplied by
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Animal B Km
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Animal A Km
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Por ejemplo, para modificar la dosis de resveratrol utilizada para un ratón (22,4 mg / kg) a una dosis basada en el BSA para una rata, multiplique 22,4 mg / kg por el factor Km para un ratón y luego divida por el factor Km para una rata. Este cálculo da como resultado una dosis equivalente para ratas de resveratrol de 11,2 mg / kg.
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Rat dose (mg/kg) = mouse dose (22.4 mg/kg) ×
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mouse Km(3)
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= 11.2 mg/kg
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rat Km(6)
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\ n Información química
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Molecular Weight (MW)
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425.42
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Formula
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C24H21F2NO4
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CAS No.
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1221485-83-1
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Storage
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3 years -20℃Powder
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6 months-80℃in solvent (DMSO, water, etc.)
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Synonyms
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N/A
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Solubility (25°C) *
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In vitro
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DMSO
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85 mg/mL
(199.8 mM)
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Water
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<1 mg/mL
(
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Ethanol
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85 mg/mL
(199.8 mM)
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In vivo
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0.5% methylcellulose
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30 mg/mL
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* <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.
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Chemical Name
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5H-Dibenzo[a,d]cyclohepten-5-one, 2-[(2,4-difluorophenyl)amino]-7-[(2R)-2,3-dihydroxypropoxy]-10,11-dihydro-
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Calculadora de molaridad Calculadora de dilución Calculadora de peso molecular
Grupos de Producto : MAPK > Inhibidor p38 MAPK
