solo para uso en investigación

PLX4032 (Vemurafenib) inhibidor de B-Raf

Cat. No.S1267

Vemurafenib (PLX4032, RG7204, RO5185426) es un nuevo y potente inhibidor de B-RafV600E con una IC50 de 31 nM en un ensayo sin células. 10 veces más selectivo para B-RafV600E que para B-Raf de tipo salvaje en ensayos enzimáticos y la selectividad celular puede superar las 100 veces. Vemurafenib (PLX4032, RG7204) induce la Autophagy.
PLX4032 (Vemurafenib) Raf inhibidor Chemical Structure

Estructura química

Peso molecular: 489.92

Saltar a

Control de calidad

Lote: Pureza: 99.98%
99.98

Cultivo celular, tratamiento y concentración de trabajo

Líneas celulares Tipo de ensayo Concentración Tiempo de incubación Formulación Descripción de la actividad PMID
SKMEL19 Function Assay 6 μM 48 h DMSO Triggers ER stress 23362240
VMM12 Function Assay 3 μM 48 h DMSO Increases collagen synthesis and decreases IL-9 expression 25989506
C4 Function Assay 3 μM 48 h DMSO Increases collagen synthesis and decreases IL-8 expression 25989506
Calu-6 Function Assay 1 μM 1 h DMSO Activates MEK/ERK in cells with wild-type BRAF 20179705
PC Growth Inhibition Assay 96 h EC50> 1000 nM 19880792
TPC-1 (RET/PTC1) Growth Inhibition Assay 96 h EC50≥1000 nM 19880792
CAL62 (KRAS G12R) > 1000 > 1000 Growth Inhibition Assay 96 h EC50> 1000 nM 19880792
HTH7 (NRAS Q61R) Growth Inhibition Assay 96 h EC50≥ 1000 nM 19880792
C643 (HRAS G13R)≥ 500 Growth Inhibition Assay 96 h EC50 ≥ 500 nM 19880792
BCPAP (BRAF WT/V600E) Growth Inhibition Assay 96 h EC50=78 nM 19880792
BHT101 (BRAF WT/V600E) Growth Inhibition Assay 96 h EC50=97 nM 19880792
SW1736 (BRAF WT/V600E) Growth Inhibition Assay 96 h EC50=29 nM 19880792
8505C (BRAF V600E/V600E) Growth Inhibition Assay 96 h EC50=57 nM 19880792
ARO Function Assay 10 μM 72 h DMSO Induces the reexpression of the NIS pump 18458053
A375 Apoptosis Assay 10 μM DMSO Promotes apoptotic death 18458053
TPCI Growth Inhibition Assay 100 μM 96 h DMSO IC50=10.77 μM 18458053
ARO Growth Inhibition Assay 100 μM 96 h DMSO IC50=205 nM 18458053
NPA Growth Inhibition Assay 100 μM 96 h DMSO IC50=26 nM 18458053
A375 Growth Inhibition Assay 100 μM 96 h DMSO IC50=47 nM 18458053
UKF-NB-3 (ABCB1) Function Assay 1.25 µM 2 h DMSO Enhances accumulation of the fluorescent ABCB1 substrate rhodamine 123 24735766
UKF-NB-3 Function Assay 1.25 µM 2 h DMSO Significantly affects on accumulation of the fluorescent ABCB1 substrate rhodamine 123 24735766
A375 (BRAFV600E) Function Assay 8 h DMSO Increases intracellular ROS and NO levels 25363644
A375P Antiproliferative assay Antiproliferative activity against human A375P cells, IC50 = 0.254 μM. 22460030
A375 Antiproliferative assay Antiproliferative activity against human A375 cells expressing B-Raf V600E mutant and wild type Ras, IC50 = 0.31 μM. 22808911
A375P Antiproliferative assay 48 hrs Antiproliferative activity against human A375P cells after 48 hrs by MTT assay, IC50 = 0.25 μM. 24128410
A375 Cytotoxicity assay 72 hrs Cytotoxicity against human A375 cells after 72 hrs by MTT assay, IC50 = 0.18 μM. 24215818
SK-MEL-28 Cytotoxicity assay Cytotoxicity against human SK-MEL-28 cells expressing B-raf V600E mutant, IC50 = 0.1 μM. 24471466
M229 Cytotoxicity assay Cytotoxicity against human M229 cells expressing B-raf V600E mutant, IC50 = 0.1 μM. 24471466
M263 Cytotoxicity assay Cytotoxicity against human M263 cells expressing B-raf V600E mutant, IC50 = 0.1 μM. 24471466
M321 Cytotoxicity assay Cytotoxicity against human M321 cells expressing B-raf V600E mutant, IC50 = 0.1 μM. 24471466
M238 Cytotoxicity assay Cytotoxicity against human M238 cells expressing B-raf V600E mutant, IC50 = 0.1 μM. 24471466
M262 Cytotoxicity assay Cytotoxicity against human M262 cells expressing B-raf V600E mutant, IC50 = 0.1 μM. 24471466
M249 Cytotoxicity assay Cytotoxicity against human M249 cells expressing B-raf V600E mutant, IC50 = 0.1 μM. 24471466
M14 Cytotoxicity assay Cytotoxicity against human M14 cells expressing NRAS G12C mutant, IC50 = 0.15 μM. 24471466
SK-MEL-28 Antiproliferative assay 68 hrs Antiproliferative activity against human SK-MEL-28 cells harboring BRAF V600E mutant after 68 hrs by MTS assay, IC50 = 0.48 μM. 24588073
insect cell Function assay 60 mins Inhibition of full length human B-Raf V600E mutant expressed in baculovirus infected insect cells assessed as [gamma-33P]incorporation into MEK after 60 mins by scintillation counting, IC50 = 0.031 μM. 24900315
MALME-3M Function assay 1 hr Inhibition of B-Raf V600E mutant-mediated Erk phosphorylation in human MALME-3M cells after 1 hr by fluorescence analysis, IC50 = 0.061 μM. 24900315
A375 Function assay 1 hr Inhibition of B-Raf V600E mutant-mediated Erk phosphorylation in human A375 cells after 1 hr by fluorescence analysis, IC50 = 0.19 μM. 24900315
COLO205 Cytotoxicity assay 4 days Cytotoxicity against human COLO205 cells after 4 days by CellTiter-Glo assay, EC50 = 0.24 μM. 24900315
WM266.4 Antiproliferative assay 48 hrs Antiproliferative activity against human WM266.4 cells after 48 hrs by MTT assay, IC50 = 0.06 μM. 25267006
A375 Antiproliferative assay 48 hrs Antiproliferative activity against human A375 cells after 48 hrs by MTT assay, IC50 = 0.19 μM. 25267006
WM1361 Antiproliferative assay 48 hrs Antiproliferative activity against human WM1361 cells after 48 hrs by MTT assay, IC50 = 1.87 μM. 25267006
A375 Function assay Inhibition of B-raf V600E mutant in human A375 cells assessed as reduction in ERK1/2 phosphorylation incubated for 90 mins by Western blotting method, IC50 = 0.0331 μM. 25462267
A375 Antiproliferative assay 72 hrs Antiproliferative activity against human A375 cells after 72 hrs by CCK8 assay, IC50 = 3.315 μM. 25462267
SK-MEL-2 Function assay Inhibition of wild type B-raf in human SK-MEL-2 cells assessed as reduction in ERK1/2 phosphorylation incubated for 90 mins by Western blotting method 25462267
A375 Function assay 72 hrs Inhibition of BRAF V600E mutant in human A375 cells assessed as inhibition of ERK phosphorylation measured after 72 hrs by ELISA assay, IC50 = 0.15 μM. 25965804
A375 Antiproliferative assay 72 hrs Antiproliferative activity against human A375 cells after 72 hrs by resazurin assay, IC50 = 0.17 μM. 25965804
A375 Function assay 15 mins Competitive binding affinity to BRAF in human A375 cells after 15 mins in presence of ATP analogue, IC50 = 0.26 μM. 25965804
A375 Function assay 15 mins Competitive binding affinity to ARAF in human A375 cells after 15 mins in presence of ATP analogue, IC50 = 0.95 μM. 25965804
HCT116 Function assay Inhibition of KRAS G13D mutant in human HCT116 cells assessed as inhibition of ERK phosphorylation by ELISA, IC50 = 16.6 μM. 25965804
HCT116 Function assay 0.34 to 20000 nM Paradoxical activation of RAS/RAF/MEK signaling pathway in human HCT116 cells expressing wild type BRAF assessed as ERK phosphorylation at 0.34 to 20000 nM 25965804
NZM20 Antiproliferative assay 68 hrs Antiproliferative activity against human NZM20 cells expressing B-Raf V600E mutant isolated from New Zealand metastatic melanoma patient incubated for 68 hrs by SRB assay, IC50 = 0.024 μM. 26005530
NZM07 Antiproliferative assay 68 hrs Antiproliferative activity against human NZM07 cells expressing B-Raf V600E mutant isolated from New Zealand metastatic melanoma patient incubated for 68 hrs by SRB assay, IC50 = 0.036 μM. 26005530
A375 Antiproliferative assay 68 hrs Antiproliferative activity against human A375 cells expressing B-Raf V600E mutant incubated for 68 hrs by MTT assay, IC50 = 0.079 μM. 26005530
COLO205 Antiproliferative assay 68 hrs Antiproliferative activity against human COLO205 cells expressing B-Raf V600E mutant incubated for 68 hrs by MTT assay, IC50 = 0.309 μM. 26005530
SK-MEL-28 Antiproliferative assay 68 hrs Antiproliferative activity against human SK-MEL-28 cells expressing B-Raf V600E mutant incubated for 68 hrs by MTT assay, IC50 = 0.381 μM. 26005530
HT-29 Antiproliferative assay 68 hrs Antiproliferative activity against human HT-29 cells expressing B-Raf V600E mutant incubated for 68 hrs by MTT assay, IC50 = 0.601 μM. 26005530
SK-MEL-1 Antiproliferative assay 68 hrs Antiproliferative activity against human SK-MEL-1 cells expressing B-Raf V600E mutant incubated for 68 hrs by MTT assay, IC50 = 1.499 μM. 26005530
NZM40 Antiproliferative assay 68 hrs Antiproliferative activity against human NZM40 cells expressing wild type B-Raf isolated from New Zealand metastatic melanoma patient incubated for 68 hrs by SRB assay, IC50 = 3.01 μM. 26005530
NZM09 Antiproliferative assay 68 hrs Antiproliferative activity against human NZM09 cells expressing wild type B-Raf isolated from New Zealand metastatic melanoma patient incubated for 68 hrs by SRB assay, IC50 = 8.33 μM. 26005530
A375P Antiproliferative assay 72 hrs Antiproliferative activity against human A375P cells expressing BRAF V600E mutant after 72 hrs by CellTiter-Glo assay, IC50 = 0.37 μM. 26724730
BL21(DE3) Function assay Inhibition of N-terminal his-tagged BRAF V600E mutant (448 to 723 residues) (unknown origin) expressed in Escherichia coli BL21(DE3) cells assessed as phosphorylation of biotinylated-MEK by AlphaScreen assay, IC50 = 0.031 μM. 26852623
A375 Function assay 1 hr Inhibition of B-Raf V600E mutant in human A375 cells assessed as ERK phosphorylation preincubated for 1 hr by Western blot method, IC50 = 0.017 μM. 27085672
MIAPaCa2 Function assay 1 hr Inhibition of wild type B-Raf in human MIAPaCa2 cells assessed as reduction in ERK phosphorylation preincubated for 1 hr by Western blot method, EC50 = 2.29 μM. 27085672
COLO205 Cytotoxicity assay 72 hrs Cytotoxicity against human COLO205 cells harboring B-Raf V600E mutant assessed as growth inhibition after 72 hrs by MTT assay, IC50 = 0.044 μM. 27155899
HT-29 Cytotoxicity assay 72 hrs Cytotoxicity against human HT-29 cells harboring B-Raf V600E mutant assessed as growth inhibition after 72 hrs by MTT assay, IC50 = 0.156 μM. 27155899
HCT116 Cytotoxicity assay 72 hrs Cytotoxicity against human HCT116 cells harboring wild type B-Raf assessed as growth inhibition after 72 hrs by MTT assay, IC50 = 14.58 μM. 27155899
WM266.4 Antiproliferative assay 24 hrs Antiproliferative activity against human WM266.4 cells assessed as cell viability after 24 hrs by MTT assay, GI50 = 0.21 μM. 27238841
WM266.4 Antiproliferative assay 24 hrs Antiproliferative activity against human WM266.4 cells harboring BRAF V600E mutant assessed as cell growth inhibition after 24 hrs by MTT assay, IC50 = 0.07 μM. 27634195
A375 Antiproliferative assay 24 hrs Antiproliferative activity against human A375 cells assessed as cell growth inhibition after 24 hrs by MTT assay, IC50 = 0.21 μM. 27634195
WM1361 Antiproliferative assay 24 hrs Antiproliferative activity against human WM1361 cells assessed as cell growth inhibition after 24 hrs by MTT assay, IC50 = 1.86 μM. 27634195
SK-MEL-28 Antiproliferative assay 48 hrs Antiproliferative activity against human SK-MEL-28 cells harboring BRAF V600E mutant assessed as concentration required for total growth inhibition measured after 48 hrs resazurin assay, TGI = 2 μM. 27774137
SK-MEL-28 Growth inhibition assay 1 hr Growth inhibition of human SK-MEL-28 cells harboring BRAF V600E mutant preincubated for 1 hr followed by irradiation of 1.13 kW/m2 UV-light for 5 mins measured after 48 hrs resazurin assay 27774137
A375 Antiproliferative assay 72 hrs Antiproliferative activity human A375 cells after 72 hrs by cell titer-glo luminescence assay, IC50 = 0.7 μM. 28242553
COLO205 Antiproliferative assay 72 hrs Antiproliferative activity human COLO205 cells after 72 hrs by cell titer-glo luminescence assay, IC50 = 5.16 μM. 28242553
HepG2 Antiproliferative assay 72 hrs Antiproliferative activity human HepG2 cells after 72 hrs by cell titer-glo luminescence assay, IC50 = 5.48 μM. 28242553
SK-MEL-2 Antiproliferative assay 72 hrs Antiproliferative activity human SK-MEL-2 cells after 72 hrs by cell titer-glo luminescence assay, IC50 = 5.64 μM. 28242553
K562 Function assay 1 hr Stabilization of BRAF in human K562 cells after 1 hr by thermal shift assay, EC50 = 0.79433 μM. 28280261
K562 Function assay 1 hr Stabilization of FECH in human K562 cells after 1 hr by thermal shift assay, EC50 = 5.01187 μM. 28280261
A375M Antiproliferative assay 72 hrs Antiproliferative activity against human A375M cells harboring BRAF V600E mutant after 72 hrs by MTT assay, IC50 = 0.5 μM. 28458134
1205 Lu Antiproliferative assay 72 hrs Antiproliferative activity against human 1205 Lu cells harboring BRAF V600E mutant after 72 hrs by MTT assay, IC50 = 2 μM. 28458134
A375M Antiproliferative assay 48 hrs Antiproliferative activity against human A375M cells harboring BRAF V600E mutant after 48 hrs by MTT assay, IC50 = 2.05 μM. 28458134
UACC-903 Antiproliferative assay 72 hrs Antiproliferative activity against human UACC-903 cells harboring BRAF V600E mutant after 72 hrs by MTT assay, IC50 = 2.7 μM. 28458134
1205 Lu Antiproliferative assay 48 hrs Antiproliferative activity against human 1205 Lu cells harboring BRAF V600E mutant after 48 hrs by MTT assay, IC50 = 7.6 μM. 28458134
UACC-903 Antiproliferative assay 48 hrs Antiproliferative activity against human UACC-903 cells harboring BRAF V600E mutant after 48 hrs by MTT assay, IC50 = 12.3 μM. 28458134
CHL-1 Antiproliferative assay 72 hrs Antiproliferative activity against human CHL-1 cells harboring wild type BRAF after 72 hrs by MTT assay, IC50 = 12.7 μM. 28458134
CHL-1 Antiproliferative assay 48 hrs Antiproliferative activity against human CHL-1 cells harboring wild type BRAF after 48 hrs by MTT assay, IC50 = 20 μM. 28458134
HCT116 Function assay Stimulation of BRAF-CRAF dimerization in human HCT116 cells by luciferase complementation assay, EC50 = 0.601 μM. 28557458
Calu6 Function assay 3 uM 2 hrs Activation of CRAF in human Calu6 cells assessed as increase in MEK phosphorylation at 3 uM after 2 hrs by FRET assay 28557458
Sf9 Function assay 1 hr Inhibition of human ZAK (5 to 309 residues) expressed in baculovirus infected Sf9 insect cells using ZAKtide as substrate after 1 hr by mass spectrometry, IC50 = 0.023 μM. 28586211
Sf9 Function assay 30 mins Inhibition of N-terminal GST-tagged recombinant human full-length ZAK expressed in baculovirus infected Sf9 insect cells using MBP as substrate after 30 mins by ADP-Glo assay, IC50 = 0.0314 μM. 28586211
UACC-903 Cytotoxicity assay 25 uM 48 hrs Cytotoxicity against human UACC-903 cells assessed as cell viability at 25 uM after 48 hrs by MTT assay relative to control, IC50 = 3.6 μM. 29133035
CHL-1 Antiproliferative assay 72 hrs Antiproliferative activity against human CHL-1 cells harboring wild type BRAF after 72 hrs by MTT assay, IC50 = 13.7 μM. 29133035
A375 Function assay 96 hrs Inhibition of BRAF V600E mutant in human A375 cells assessed as reduction in cell proliferation incubated for 96 hrs by MTT assay, IC50 = 0.127 μM. 29407977
A375 Function assay Inhibition of BRAF V600E mutant in human A375 cells assessed as reduction in ERK phosphorylation by AlphaScreen assay, IC50 = 0.032 μM. 29461827
SK-MEL-32 Cytotoxicity assay Cytotoxicity against human SK-MEL-32 cells, IC50 = 0.31 μM. 29461827
WM266.4 Antiproliferative assay 48 hrs Antiproliferative activity against human WM266.4 cells after 48 hrs by MTT assay, GI50 = 0.21 μM. 29940463
A375 Antiproliferative assay 48 hrs Antiproliferative activity against human A375 cells after 48 hrs by MTT assay, GI50 = 0.95 μM. 29940463
HT-29 Antiproliferative assay 48 hrs Antiproliferative activity against human HT-29 cells after 48 hrs by MTT assay, GI50 = 1.88 μM. 29940463
WM1361 Antiproliferative assay 48 hrs Antiproliferative activity against human WM1361 cells after 48 hrs by MTT assay, GI50 = 20.8 μM. 29940463
HCT116 Antiproliferative assay 48 hrs Antiproliferative activity against human HCT116 cells after 48 hrs by MTT assay, GI50 = 25.2 μM. 29940463
A673 qHTS assay qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for A673 cells 29435139
DAOY qHTS assay qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for DAOY cells 29435139
RD qHTS assay qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for RD cells 29435139
SK-N-SH qHTS assay qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for SK-N-SH cells 29435139
MG 63 (6-TG R) qHTS assay qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for MG 63 (6-TG R) cells 29435139
NB1643 qHTS assay qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for NB1643 cells 29435139
OHS-50 qHTS assay qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for OHS-50 cells 29435139
A673 qHTS assay qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Confirmatory screen for A673 cells) 29435139
U-2 OS qHTS assay qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Confirmatory screen for U-2 OS cells 29435139
Rh41 qHTS assay qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Confirmatory screen for Rh41 cells 29435139
SJ-GBM2 qHTS assay qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for SJ-GBM2 cells 29435139
SK-N-MC qHTS assay qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for SK-N-MC cells 29435139
LAN-5 qHTS assay qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for LAN-5 cells 29435139
SK-N-MC qHTS assay qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Confirmatory screen for SK-N-MC cells 29435139
TC32 qHTS assay qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Confirmatory screen for TC32 cells 29435139
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Información química, almacenamiento y estabilidad

Peso molecular 489.92 Fórmula

C23H18ClF2N3O3S

Almacenamiento (Desde la fecha de recepción) 3 years -20°C(in the dark) powder
1 year -80°C(in the dark) in solvent
Nº CAS 918504-65-1 Descargar SDF Almacenamiento de soluciones madre

Sinónimos RG7204, RO5185426,PLX4032 Smiles CCCS(=O)(=O)NC1=C(C(=C(C=C1)F)C(=O)C2=CNC3=C2C=C(C=N3)C4=CC=C(C=C4)Cl)F

Solubilidad

In vitro
Lote:

DMSO : 98 mg/mL (200.03 mM)
(El DMSO contaminado con humedad puede reducir la solubilidad. Usar DMSO fresco y anhidro.)

Water : Insoluble

Ethanol : Insoluble

Calculadora de Molaridad

Masa Concentración Volumen Peso molecular
Calculadora de Dilución Calculadora de Peso Molecular

In vivo
Lote:

Calculadora de formulación in vivo (Solución clara)

Paso 1: Introduzca la información a continuación (Recomendado: Un animal adicional para tener en cuenta la pérdida durante el experimento)

mg/kg g μL

Paso 2: Introduzca la formulación in vivo (Esto es solo la calculadora, no la formulación. Por favor, contáctenos primero si no hay una formulación in vivo en la sección de Solubilidad.)

% DMSO % % Tween 80 % ddH2O
%DMSO %

Resultados del cálculo:

Concentración de trabajo: mg/ml;

Método para preparar el líquido maestro de DMSO: mg fármaco predissuelto en μL DMSO ( Concentración del líquido maestro mg/mL, Por favor, contáctenos primero si la concentración excede la solubilidad del DMSO del lote del fármaco. )

Método para preparar la formulación in vivo: Tomar μL DMSO líquido maestro, luego añadirμL PEG300, mezclar y clarificar, luego añadirμL Tween 80, mezclar y clarificar, luego añadir μL ddH2O, mezclar y clarificar.

Método para preparar la formulación in vivo: Tomar μL DMSO líquido maestro, luego añadir μL Aceite de maíz, mezclar y clarificar.

Nota: 1. Por favor, asegúrese de que el líquido esté claro antes de añadir el siguiente disolvente.
2. Asegúrese de añadir el (los) disolvente(s) en orden. Debe asegurarse de que la solución obtenida, en la adición anterior, sea una solución clara antes de proceder a añadir el siguiente disolvente. Se pueden utilizar métodos físicos como el vórtice, el ultrasonido o el baño de agua caliente para ayudar a la disolución.

Mecanismo de acción

Características
A novel and potent inhibitor of the B-RAFV600E oncoprotein.
Targets/IC50/Ki
SRMS
(Cell-free assay)
18 nM
ACK1
(Cell-free assay)
19 nM
B-Raf (V600E)
(Cell-free assay)
31 nM
C-Raf
(Cell-free assay)
48 nM
MAP4K5 (KHS1)
(Cell-free assay)
51 nM
FGR
(Cell-free assay)
63 nM
B-Raf
(Cell-free assay)
100 nM
LCK
(Cell-free assay)
183 nM
BRK
(Cell-free assay)
213 nM
NEK11
(Cell-free assay)
317 nM
BLK
(Cell-free assay)
547 nM
Lyn B
(Cell-free assay)
599 nM
YES1
(Cell-free assay)
604 nM
WNK3
(Cell-free assay)
877 nM
MNK2
(Cell-free assay)
1.717 μM
FRK (PTK5)
(Cell-free assay)
1.884 μM
CSK
(Cell-free assay)
2.339 μM
Src
(Cell-free assay)
2.389 μM
In vitro
Vemurafenib (PLX4032) inhibe B-RAFV600E, C-RAF, así como B-RAF de tipo salvaje, con IC50 de 31 nM, 48 nM y 100 nM, respectivamente. Este compuesto también inhibe varias quinasas no RAF, incluyendo ACK1, KHS1 y SRMS, con IC50 de 18 nM a 51 nM. En las líneas celulares de melanoma, el efecto inhibidor depende del estado mutacional de B-RAF, ya que inhibe potentemente aquellas que albergan mutantes B-RAF V600, incluyendo V600E, V600D, V600K y V600R, pero no el tipo salvaje u otros mutantes. Los valores de IC50 en estas células, incluyendo MALME-3M, Colo829, Colo38, A375, SK-MEL28 y A2058, oscilan entre 20 nM y 1 μM. En estas células, Vemurafenib (0,1 μM a 30 μM) también inhibe la fosforilación de MEK1/2 y ERK1/2. Es muy eficaz en el tratamiento del melanoma, por su capacidad de inhibir B-RAFV600E. Sin embargo, este compuesto muestra un efecto limitado en pacientes con cáncer de colon que también portan la oncoproteína B-RAFV600E. La razón de esto es que, en las células de cáncer de colon, la inhibición de B-RAFV600E por él da como resultado una rápida activación por retroalimentación del EGFR, que compensa la proliferación celular inhibida por PLX4032.
Ensayo de quinasa
Mediciones de la actividad de la quinasa RAF
Las actividades quinasa de RAF de tipo salvaje y mutantes se determinan midiendo la fosforilación de la proteína BAD biotinilada en presencia de Vemurafenib (PLX4032). Para cada enzima (0,01 ng), se realizan reacciones de 20 μL en 20 mM Hepes (pH 7,0), 10 mM MgCl2, 1 mM DTT, 0,01% (v/v) Tween-20, 50 nM de proteína biotina-BAD y 1 mM de ATP a temperatura ambiente. Las reacciones se detienen a los 5 min con 5 μL de una solución que contiene 20 mM Hepes (pH 7,0), 200 mM NaCl, 80 mM EDTA, 0,3% (p/v) de albúmina sérica bovina (BSA). La solución de parada también incluye anticuerpo anti-fosfo-BAD (Ser112), perlas donadoras recubiertas de estreptavidina y perlas aceptoras de proteína A. El anticuerpo y las perlas se preincuban en la solución de parada en la oscuridad a temperatura ambiente durante 30 min. La dilución final del anticuerpo es de 1/2000 y la concentración final de cada perla es de 10 μg/mL. Las placas de ensayo se incuban a temperatura ambiente durante una hora y luego se leen en un lector PerkinElmer AlphaQuest. Las actividades mutantes son el promedio de dos lotes diferentes de proteína purificada ensayados por duplicado en tres experimentos diferentes.
In vivo
En modelos de xenoinjertos de ratones con mutación B-RAFV600E, Vemurafenib (PLX4032) (6 mg/kg–20 mg/kg) inhibe el crecimiento tumoral. En modelos de xenoinjertos de ratones de células LOX, Colo829 y A375, este compuesto (12,5 mg/kg–100 mg/kg) inhibe el crecimiento tumoral y prolonga la supervivencia de los ratones.
Referencias
  • [4] https://pubmed.ncbi.nlm.nih.gov/15808862/
  • [5] https://pubmed.ncbi.nlm.nih.gov/22180495/

Aplicaciones

Métodos Biomarcadores Imágenes PMID
Western blot p-ERK / p-CRAF p-MEK(S217/221) / pAKT(T308) / p-AKT(S473) / p-P70 S6K(T389) / p-S6(Ser235-236) / P-4EB-P1 Bax / Bcl2 / Bcl-xl / BIM / Mcl1
S1267-WB1
22448344
Growth inhibition assay Cell viability
S1267-viability1
29179510
Immunofluorescence uPAR / α5-β1 p-Akt(Thr308)
S1267-IF2
30611716

Información del ensayo clínico

(datos de https://clinicaltrials.gov, actualizado el 2024-05-22)

Número NCT Reclutamiento Condiciones Patrocinador/Colaboradores Fecha de inicio Fases
NCT05768178 Recruiting
Solid Tumor|Haematological Malignancy|Melanoma|Thyroid Cancer Papillary|Ovarian Neoplasms|Colorectal Neoplasms|Laryngeal Neoplasms|Carcinoma Non-Small-Cell Lung|Glioma|Multiple Myeloma|Erdheim-Chester Disease|Thyroid Carcinoma Anaplastic
Cancer Research UK|University of Manchester|University of Birmingham|Royal Marsden NHS Foundation Trust|Hoffmann-La Roche
March 1 2023 Phase 2|Phase 3
NCT05068752 Recruiting
Pancreas Cancer
HonorHealth Research Institute|Bayer|Genentech Inc.
October 28 2021 Phase 2
NCT03410875 Active not recruiting
Hairy Cell Leukemia|Leukemia|Leukemia Hairy Cell
Memorial Sloan Kettering Cancer Center|Dana-Farber Cancer Institute|Yale University
February 9 2018 Phase 2
NCT03013491 Completed
Solid Tumor|Lymphoma
CytomX Therapeutics
January 2017 Phase 1|Phase 2

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Preguntas frecuentes

Pregunta 1:
How about its half-life?

Respuesta:
It was reported that this compound has a half-life of 57 hours.

Pregunta 2:
When prepared in 4% DMSO/30% PEG 300/5% Tween 80/ddH2O solutions, it forms a pellet down the tube?

Respuesta:
When preparing this kind of vehicle, please dissolve it in DMSO clearly first. If it dissolves not readily, please sonicate and warm in the water bath at about 45 degree. Then add PEG and Tween. After they mixed homogeneously, then dilute with water.