Fostamatinib (R788) disodium

別名：Tamatinib Fosdium

製品コード：S2206 純度：99.99%

Fostamatinib disodium (R788, Tamatinib Fosdium), a prodrug of the active metabolite R406, is a Syk inhibitor with IC50 of 41 nM in a cell-free assay, strongly inhibits Syk but not Lyn, 5-fold less potent to Flt3. Phase 3.

CAS No. 1025687-58-4

サイズ	価格(税別)	在庫状況
5mg	JPY 25500	国内在庫あり
50mg	JPY 118500	国内在庫あり
250mg	JPY 295500	国内在庫あり
1g	JPY 598500	国内在庫なし(納期7~10日)

代表番号: 045-509-1970\|電子メール：[email protected] よく尋ねられる質問

文献中Selleckの製品使用例（18）

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製品安全説明書

現在のバッチを見る：純度： 99.99%

99.99

Fostamatinib (R788) disodium関連製品

関連ターゲット	ZAP70	もっと見る
関連製品	R406 R406 (free base) PRT062607 (P505-15) HCl Entospletinib (GS-9973) Piceatannol BAY-61-3606 PRT-060318 2HCl TAK-659 Hydrochloride RO9021	もっと見る
関連化合物ライブラリー	Tyrosine Kinase Inhibitor Library PI3K/Akt Inhibitor Library Angiogenesis Related compound Library HIF-1 Signaling Pathway Compound Library FDA-approved Anticancer Drug Library	もっと見る

シグナル伝達経路

Sykシグナル伝達経路

Syk阻害剤の選択性比較

Cell Data

Cell Lines	Assay Type	活性情報	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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生物活性

製品説明

特性

Clinically used oral formulation of R406.

Targets

Syk ^[1]
(Cell-free assay)

41 nM

In Vitro
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. ^[1] 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. ^[2] 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. ^[3]
Kinase Assay	In vitro fluorescence polarization kinase assays
Kinase Assay	R406 (in vitro active form of R935788) is serially diluted in DMSO and then diluted to 1% DMSO in kinase buffer (20 mM HEPES, pH 7.4, 5 mM MgCl₂, 2 mM MnCl₂, 1 mM DTT, 0.1 mg/mL acetylated BGG). ATP and substrate in kinase buffer are added at room temperature, resulting in a final DMSO concentration on 0.2%. The kinase reactions are performed in a final volume of 20 μL containing 5 μM HS1 peptide substrate and 4 μM ATP and started by addition of 0.125 ng of Syk in kinase buffer. The reaction is allowed to proceed for 40 minutes at room temperature. The reaction is stopped by the addition of 20 μL of PTK quench mix containing EDTA/anti-phosphotyrosine antibody (1× final)/fluorescent phosphopeptide tracer (0.5× final) diluted in FP Dilution Buffer. The plate is incubated for 30 minutes in the dark at room temperature and then read on a Polarion fluorescence polarization plate reader. Data is converted to determine the amount of phosphopeptide present using a calibration curve generated by competition with the phosphopeptide competitor provided in the Tyrosine Kinase Assay Kit. For IC50 determination, R406 is tested at eleven concentrations in duplicate and curve-fitting is performed by non-linear regression analysis using Prism GraphPad Software.
細胞実験	細胞株	TCL1-002, TCL1-252, TCL1-551, TCL1-870, and TCL1-540
	濃度	Dissolved in DMSO, final concentrations ~10 μM
	反応時間	48 hours
	実験の流れ	Cells are exposed to increasing concentrations of R406 (in vitro active form of R935788) for 48 hours. The percentage of apoptotic cells is determined by double staining with propidium iodide (PI) and annexin-A5–FITC conjugate. Ki-67 staining is performed with the FITC mouse anti–Ki-67 set. Samples are analyzed on a FACSCalibur flow cytometer with CellQuest Version 3.3 software.
実験結果図	Methods	Biomarkers	結果図	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

In Vivo
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. ^[3]
動物実験	動物モデル	B6/C3H F1 female mice intraperitoneally injected with TCL1-002, TCL1-551, or TCL1-870 leukemia cells, and Eμ-TCL1 transgenic mice
	投与量	80 mg/kg/day
	投与経路	Intraperitoneal administration in 3 divided doses at 3-hour intervals

NCT Number	Recruitment	Conditions	Sponsor/Collaborators	Start Date	Phases
臨床試験 (data from https://clinicaltrials.gov, updated on 2024-05-22)
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	--

参考
[1] Braselmann S, et al. J Pharmacol Exp Ther, 2006, 319(3), 998-1008. [2] Chen L, et al. Blood, 2008, 111(4), 2230-2237. [3] Suljagic M, et al. Blood, 2010, 116(23), 4894-4905.

参考

化学情報

分子量	624.42	化学式	C₂₃H₂₄FN₆O₉P.2Na
CAS No.	1025687-58-4	SDF	Download Fostamatinib (R788) disodium SDFをダウンロードする
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+]
保管	3年-20°C粉	溶液の保管冷凍と解凍の繰り返しを避けるため小分けにしてください	1年-80°Cin solvent
保管	3年-20°C粉	溶液の保管冷凍と解凍の繰り返しを避けるため小分けにしてください	１ケ月-20°Cin solvent

In vitro
Batch:

DMSO : 12 mg/mL ( (19.21 mM)；吸湿したDMSOは溶解度を減少させます。新しいDMSOをご使用ください。)

Water : Insoluble

Ethanol : Insoluble

モル濃度計算器

in vivo
Batch:

Add solvents to the product individually and in order.

投与溶液組成計算機

実験計算

モル濃度計算器

質量	濃度	体積	分子量
=	×	×

希釈計算器分子量計算器

投与溶液組成計算機(クリア溶液)

ステップ１：実験データを入力してください。（実験操作によるロスを考慮し、動物数を1匹分多くして計算・調製することを推奨します）

投与量 mg/kg 動物平均体重 g 投与体積（動物毎）μL 動物数匹

ステップ２：投与溶媒の組成を入力してください。（ロット毎に適した溶解組成が異なる場合があります。詳細については弊社までお問い合わせください）

% DMSO + % + % Tween 80 + % ddH₂O

%DMSO+ %

計算結果：

投与溶媒濃度： mg/ml;

DMSOストック溶液調製方法： mg 試薬を μL DMSOに溶解する（濃度 mg/mL, 注：濃度が当該ロットのDMSO溶解度を超える場合はご連絡ください。 )

投与溶媒調製方法：Take μL DMSOストック溶液に μL PEG300，を加え、完全溶解後μL Tween 80，を加えて完全溶解させた後 μL ddH₂O，を加え完全に溶解させます。

投与溶媒調製方法：μL DMSOストック溶液に μL Corn oil，を加え、完全溶解。

注意：１.ストック溶液に沈殿、混濁などがないことをご確認ください；
２.順番通りに溶剤を加えてください。次のステップに進む前に溶液に沈殿、混濁などがないことを確認してから加えてください。ボルテックス、ソニケーション、水浴加熱など物理的な方法で溶解を早めることは可能です。

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よくある質問（FAQ）

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

回答
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 the product in animal assays; 4. The potency of S2206 and S2625 is similar.

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C2=C1/X	C2:	LOG(C2):
C3=C2/X	C3:	LOG(C3):
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C8=C7/X	C8:	LOG(C8):