Bemcentinib (R428)

N.º de catálogoS2841 Lote:S284108

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Datos técnicos

Fórmula

C30H34N8
Peso molecular 506.64 Número CAS 1037624-75-1
Solubilidad (25°C)* In vitro DMSO 9 mg/mL (17.76 mM)
Water Insoluble
Ethanol Insoluble
In vivo (Agregue los solventes al producto individualmente y en orden.)
Homogeneous suspension
CMC-NA
≥5mg/ml Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
* <1 mg/ml significa ligeramente soluble o insoluble.
* Tenga en cuenta que Selleck prueba la solubilidad de todos los compuestos internamente, y la solubilidad real puede diferir ligeramente de los valores publicados. Esto es normal y se debe a ligeras variaciones entre lotes.
* Envío a temperatura ambiente (Las pruebas de estabilidad demuestran que este producto se puede enviar sin medidas de refrigeración.)

Preparación de soluciones madre

Actividad biológica

Descripción Bemcentinib (R428, BGB324) es un inhibidor de Axl con una IC50 de 14 nM, lo que demuestra una selectividad >100 veces mayor para Axl sobre Abl. Este compuesto también es más de 50 a 100 veces más selectivo para Axl frente a Mer y Tyro3, y exhibe una selectividad 100 veces mayor en comparación con InsR, EGFR, HER2 y PDGFR.
Objetivos
Axl
(Cell-free assay)
14 nM
In vitro Bemcentinib (R428) blocks the catalytic and procancerous activities of Axl. It inhibits Axl with low nanomolar activity and blocks Axl-dependent events, including Akt phosphorylation, breast cancer cell invasion, and proinflammatory cytokine production. In a recent study, this compound shows a mean IC50 dose of ∼ 2.0μM for the primary CLL B cells after 24 hours of treatment and normal B-, T-, and natural killer (NK) cells show no significant amount of cell death at this dose of R428 (2.5 μM) under similar experimental conditions.
In vivo Pharmacologic investigations reveal favorable exposure after oral administration of Bemcentinib (R428), such that treated tumors display a dose-dependent reduction in expression of the cytokine granulocyte macrophage colony-stimulating factor and the epithelial-mesenchymal transition transcriptional regulator Snail. In support of an earlier study, it inhibits angiogenesis in corneal micropocket and tumor models. This compound also reduces metastatic burden and extends survival in MDA-MB-231 intracardiac and 4T1 orthotopic (median survival, >80 days compared with 52 days; P < 0.05) mouse models of breast cancer metastasis.

Protocolo (de referencia)

Estudio en animales:

[1]
  • Modelos animales

    MDA-MB-231-luc-D3H2LN Intracardiac Model

  • Dosificaciones

    125 mg/kg

  • Administración

    Oral, twice daily

Referencias

  • https://pubmed.ncbi.nlm.nih.gov/20145120/
  • https://pubmed.ncbi.nlm.nih.gov/21135257/

Validación de productos por parte del cliente

Cetuximab-resistant cells are sensitive to therapeutic blockade of AXL activity with the AXL TKI R428. Cells were treated with vehicle (-) or indicated doses of R428 for 24 hours before harvesting whole-cell lysate and immunoblotting for the indicated proteins. α-Tubulin was used as a loading control.

Datos de [ Cancer Res , 2014 , 74(18), 5152-64 ]

Axl inhibitor promotes the apoptosis induced by ALK-TKIs. (A) After treated with crizotinib (100 nM), BGB324 (300 nM) or their combination for 48 h, cell apoptosis was determined by flow cytometry. (B) The induction of apoptosis by ceritinib (100 nM), BGB324 (300 nM) or their combination was examined. (C and D) Cells were treated with crizotinib (100 nM), BGB324 (300 nM) or their combination for 48 h, then whole-cell lysates were collected and the levels of indicated protein were analyzed by Western blot in (C) NB1643 and (D) SHSY5Y cells. *P < 0.05 for the indicated comparisons; ns, not significant.

Datos de [ Biochem Bioph Res Co , 2014 , 10.1016/j.bbrc.2014.10.126 ]

<p>B) The processing of AXL is increased by an AXL kinase inhibitor. Panc-28 cells were incubated overnight with DMSO or 150 nM R428, a selective AXL kinase inhibitor, before examining by Western blot the levels of endogenous AXL-FL and AXL-CTF (C-20; left). Levels of AXL-CTF in DAPT-treated cells were quantified as described above and unpaired Student’s t test was employed for the analysis (right). Data are shown as means±SEM (n = 4). ***P<0.001.</p>

, , FASEB J, 2017, 31(4):1382-1397

Flow cytometry analysis showing band 3/α4 integrin expression of luciferase and TET2-knockdown CFU-E cells cultured for 13 days in the presence of DMSO or 0.2 μM R428.

Datos de [ , , Blood, 2018, doi:10.1182/blood-2018-05-853291 ]

Selleck's Bemcentinib (R428) Ha sido citado por 142 Publicaciones

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