Name: R788 (Fostamatinib) Disodium
Brand: Selleck Chemicals
SKU: S2206
Rating: 5 (20 reviews)

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Control de calidad (Quality Control)

Lote: Pureza: 99.99%

99.99

Dianas relacionadas	EGFR VEGFR JAK FGFR PDGFR Src HIF HER2 FLT3 FLT
Otros Syk Inhibidores	R406 R406 (free base) PRT062607 (P505-15) HCl Entospletinib (GS-9973) Piceatannol BAY 61-3606 dihydrochloride PRT-060318 2HCl TAK-659 Hydrochloride Lanraplenib (GS-SYK) RO9021

Cultivo celular, tratamiento y concentración de trabajo
(Cell Culture, Treatment & Working Concentration)

Líneas celulares	Tipo de ensayo	Descripción de la actividad	PMID
Ramos	Function assay	Inhibition of SYK in human Ramos cells, IC50 = 0.267 μM.	23350847
SJ-GBM2	qHTS assay	qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for SJ-GBM2 cells	29435139
A673	qHTS assay	qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for A673 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
NB-EBc1	qHTS assay	qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for NB-EBc1 cells	29435139
U-2 OS	qHTS assay	qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for U-2 OS cells	29435139
Saos-2	qHTS assay	qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for Saos-2 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
NB1643	qHTS assay	qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for NB1643 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
Rh18	qHTS assay	qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for Rh18 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
RD	qHTS assay	qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for RD 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
Rh41	qHTS assay	qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for Rh41 cells	29435139
NB1643	qHTS assay	qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Confirmatory screen for NB1643 cells	29435139
A673	qHTS assay	qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Confirmatory screen for A673 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
LAN-5	qHTS assay	qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Confirmatory screen for LAN-5 cells	29435139
DAOY	qHTS assay	qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Confirmatory screen for DAOY cells	29435139
BT-37	qHTS assay	qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Confirmatory screen for BT-37 cells	29435139
TC32	qHTS assay	qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Confirmatory screen for TC32 cells	29435139
MG 63 (6-TG R)	qHTS assay	qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Confirmatory screen for MG 63 (6-TG R) 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
RD	qHTS assay	qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Confirmatory screen for RD cells	29435139
Rh30	qHTS assay	qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Confirmatory screen for Rh30 cells	29435139
Saos-2	qHTS assay	qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Confirmatory screen for Saos-2 cells	29435139
OHS-50	qHTS assay	qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Confirmatory screen for OHS-50 cells	29435139
SK-N-SH	qHTS assay	qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Confirmatory screen for SK-N-SH cells	29435139
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Información química, almacenamiento y estabilidad (Chemical Information, Storage & Stability)

Peso molecular	624.42	Fórmula	C₂₃H₂₄FN₆O₉P.2Na	Almacenamiento (Desde la fecha de recepción)	3 años-20°Cpolvo
Nº CAS	1025687-58-4	Descargar SDF		Almacenamiento de soluciones madre	1 año-80°Cen disolvente 1 mes-20°Cen disolvente
Sinónimos	Tamatinib Fosdium			Smiles	CC1(C(=O)N(C2=C(O1)C=CC(=N2)NC3=NC(=NC=C3F)NC4=CC(=C(C(=C4)OC)OC)OC)COP(=O)([O-])[O-])C.[Na+].[Na+]

Solubilidad (Solubility)

In vitro
Lote:

DMSO : 12 mg/mL (19.21 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:
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.
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.
Clear solution	5%DMSO 1 Corn oil Validado por los laboratorios Selleck. Si necesita ajustes en esta formulación, contacte con nuestro equipo de ventas para pruebas personalizadas.	5.000mg/ml (8.01mM)	Taking the 1 mL working solution as an example, add 50 μL of 100 mg/ml clear DMSO stock solution to 950 μL of corn oil and mix evenly. The mixed solution should be used immediately for optimal results.
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.

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)

Dosis: mg/kg Peso promedio de los animales: g Volumen de dosificación por animal:μL Número de animales:

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 (Mechanism of Action)

Características	Clinically used oral formulation of R406.
Targets/IC₅₀/Ki	Syk (Cell-free assay) 41 nM
In vitro	R935788 is a methylene phosphate prodrug of R406, which can be rapidly converted to R406 in vivo. R406 (in vitro active form of R935788) selectively inhibits Syk-dependent signaling with EC50 values ranging from 33 nM to 171 nM, more potently than Syk-independent pathways in different cells. R406 inhibits cellular proliferation of a variety of diffuse large B-cell lymphoma (DLBCL) cell lines with EC50 values ranging from 0.8 μM to 8.1 μM. R406 treatment reduces basal phosphorylation of BLNK, Akt, glycogen synthase kinase-3 (GSK-3), forkhead box O (FOXO) and ERK not only in cells with high (TCL-002) but also in cells with low levels of phosphorylated Syk (TCL1-551). In addition, R406 completely inhibits the anti-IgM induced Bcr signal in TCL1 leukemias. Despite the higher levels of constitutively active Syk in TCL1 leukemias, R406 is not selectively cytotoxic to the leukemic cells.
Ensayo de quinasa	Ensayos de quinasas de polarización de fluorescencia in vitro
Ensayo de quinasa	R406 (forma activa in vitro de R935788) se diluye en serie en DMSO y luego se diluye al 1% de DMSO en tampón de quinasa (20 mM HEPES, pH 7,4, 5 mM MgCl₂, 2 mM MnCl₂, 1 mM DTT, 0,1 mg/mL de BGG acetilado). Se añaden ATP y sustrato en tampón de quinasa a temperatura ambiente, lo que resulta en una concentración final de DMSO del 0,2%. Las reacciones de quinasa se realizan en un volumen final de 20 μL que contiene 5 μM de sustrato peptídico HS1 y 4 μM de ATP y se inician con la adición de 0,125 ng de Syk en tampón de quinasa. La reacción se deja proceder durante 440 minutos a temperatura ambiente. La reacción se detiene con la adición de 20 μL de mezcla de extinción de PTK que contiene EDTA/anticuerpo anti-fosfotirosina (1× final)/trazador de fosfopéptido fluorescente (0,5× final) diluido en tampón de dilución FP. La placa se incuba durante 30 minutos en la oscuridad a temperatura ambiente y luego se lee en un lector de placas de polarización de fluorescencia Polarion. Los datos se convierten para determinar la cantidad de fosfopéptido presente utilizando una curva de calibración generada por competición con el fosfopéptido competidor proporcionado en el kit de ensayo de tirosina quinasa. Para la determinación de la IC50, R406 se prueba a once concentraciones por duplicado y el ajuste de la curva se realiza mediante análisis de regresión no lineal utilizando el software Prism GraphPad.
In vivo	Given that plasma half-life of R406 in mice is less than 2 hours, R935788 is administered in 3 divided doses at 3-hour intervals to provide continuous Syk inhibition during each day of treatment, mimicking the longer plasma half-life in humans (15 hours). Despite the relatively modest cytotoxic effect in vitro, R935788 significantly inhibits the proliferation and survival of leukemic cell in vivo, which is associated with the blocking of antigen-dependent B-cell receptor (Bcr) signaling rather than inhibition of constitutive Syk activity. R935788 treatment at 80 mg/kg/day for 18-21 days potently inhibits tumor growth of TCL1-002, TCL1-551 and TCL1-870 in mice with undetectable leukemic CD5⁺/B220⁺ cells at the last day of treatment, significantly prolongs the survival of the treated mice with median survival increased from 45/46 days to 170/172 days, and completely eradicates the malignant cells in a substantial proportion of mice after a 6-month follow-up period without affecting the production of normal B lymphocytes. R935788 treatment also induces an early and transient migration of both normal and malignant B cells from spleen and lymph nodes to peripheral blood, which is subsequently followed by selective growth inhibition of the malignant B-cell population. In addition, R935788 is also effective against spontaneously developing TCL1 leukemias in Eμ-TCL1 transgenic mice.
Referencias	[1] https://pubmed.ncbi.nlm.nih.gov/16946104/ [2] https://pubmed.ncbi.nlm.nih.gov/18006696/ [3] https://pubmed.ncbi.nlm.nih.gov/20716772/

Aplicaciones (Applications)

Métodos	Biomarcadores	Imágenes	PMID
Western blot	p-JAK2 / JAK2 / p-SRC / SRC / p-FAK / FAK / p-SYK / SYK / p-ERK / ERK p-SYK(525-526) / t-SYK / p-SYK(323) / p-BTK / t-BTK p-MEK / MEK / p-ERK / ERK / p-AKT / AKT		29340070
Growth inhibition assay	Cell viability		25748087

Información del ensayo clínico (Clinical Trial Information)

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

Número NCT	Reclutamiento	Condiciones	Patrocinador/Colaboradores	Fecha de inicio	Fases
NCT05904093	Not yet recruiting	Sickle Cell Disease\|Hb-SS Disease\|Hemoglobin S\|Disease Sickle Cell Anemia\|Sickle Cell Disorders\|Hemoglobin Beta Thalassemia Disease	National Heart Lung and Blood Institute (NHLBI)\|National Institutes of Health Clinical Center (CC)	May 15 2024	Phase 1
NCT05509582	Enrolling by invitation	Immune Mediated Anemia\|Immune Mediated Thrombocytopenia\|Chronic GVHD	National Heart Lung and Blood Institute (NHLBI)\|National Institutes of Health Clinical Center (CC)	May 15 2024	Phase 2
NCT06071520	Completed	Primary Immune Thrombocytopenia	Fundación Pública Andaluza para la gestión de la Investigación en Sevilla	March 1 2023	--
NCT05613296	Not yet recruiting	ITP - Immune Thrombocytopenia\|Chronic ITP\|Refractory ITP	Gruppo Italiano Malattie EMatologiche dell''Adulto	February 2023	--
NCT04543279	Terminated	Myelofibrosis\|Thrombocytopenia	Washington University School of Medicine\|Rigel Pharmaceuticals	May 3 2021	Phase 2
NCT04904276	Terminated	ITP\|Immune Thrombocytopenia	Rigel Pharmaceuticals	May 18 2021	--

Preguntas frecuentes (Frequently Asked Questions)

Pregunta 1:
What’s the difference between S2625 and S2206?

Respuesta:
The differences between S2625 and S2206: 1. S2206 is more stable than S2625; 2. The water solubility of S2206 is better than S2625; 3. The absorption of S2206 is harder than S2625, so you need to test the suitable dosage if you use it in animal assays; 4. The potency of S2206 and S2625 is similar.

C1=C0/X	C1:	LOG(C1):
C2=C1/X	C2:	LOG(C2):
C3=C2/X	C3:	LOG(C3):
C4=C3/X	C4:	LOG(C4):
C5=C4/X	C5:	LOG(C5):
C6=C5/X	C6:	LOG(C6):
C7=C6/X	C7:	LOG(C7):
C8=C7/X	C8:	LOG(C8):

R788 (Fostamatinib) Disodium Syk inhibitor

Estructura química

Peso molecular: 624.42

Control de calidad (Quality Control)

Cultivo celular, tratamiento y concentración de trabajo
(Cell Culture, Treatment & Working Concentration)

Información química, almacenamiento y estabilidad (Chemical Information, Storage & Stability)

Solubilidad (Solubility)

Calculadora de Molaridad

Calculadora de formulación in vivo (Solución clara)

Mecanismo de acción (Mechanism of Action)

Aplicaciones (Applications)

Información del ensayo clínico (Clinical Trial Information)

Preguntas frecuentes (Frequently Asked Questions)

R788 (Fostamatinib) Disodium Syk inhibitor

Estructura química

Peso molecular: 624.42

Control de calidad (Quality Control)

Cultivo celular, tratamiento y concentración de trabajo (Cell Culture, Treatment & Working Concentration)

Información química, almacenamiento y estabilidad (Chemical Information, Storage & Stability)

Solubilidad (Solubility)

Calculadora de Molaridad

Calculadora de formulación in vivo (Solución clara)

Mecanismo de acción (Mechanism of Action)

Aplicaciones (Applications)

Información del ensayo clínico (Clinical Trial Information)

Preguntas frecuentes (Frequently Asked Questions)

Cultivo celular, tratamiento y concentración de trabajo
(Cell Culture, Treatment & Working Concentration)