ホームページ Endocrinology & Hormones Androgen Receptor antagonist - P450 (e.g. CYP17) inhibitor Galeterone For research use only.

Galeterone

別名：TOK-001

Galeterone (TOK-001) is a selective CYP17 inhibitor and androgen receptor (AR) antagonist with IC50 of 300 nM and 384 nM, respectively, and is a potent inhibitor of human prostate tumor growth. Phase 2.

Galeterone化学構造

CAS No. 851983-85-2

サイズ 価格(税別) 在庫状況
JPY 25500 国内在庫あり
JPY 70500 国内在庫あり

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（6）

カスタマーフィードバック1例

製品安全説明書

現在のバッチを見る： 純度： 99.98%
99.98

Galeterone関連製品

シグナル伝達経路

Androgen Receptor Signaling Pathways

Androgen Receptorシグナル伝達経路

Androgen Receptor阻害剤の選択性比較

Cell Data

Cell Lines Assay Type Concentration Incubation Time 活性情報 PMID
human LNCAP cells Function assay 5 μM 48 h Down regulation of AR protein expression in human LNCAP cells at 5 uM after 48 hrs by DAPI staining-based immunocytochemical analysis 23713567
human LNCaP cells Function assay 2 h Displacement of [3H]R1881 from AR in human LNCaP cells after 2 hrs by scintillation counting analysis, EC50=0.67 μM 23713567
human CWR22Rv1 cells Function assay Induction of apoptosis in human CWR22Rv1 cells assessed as induction of PARP cleavage 23713567
human PC3 cells Function assay Displacement of [3H]R1881 from androgen receptor in human PC3 cells, EC50=0.405 μM 25591066
他の多くの細胞株試験データをご覧になる場合はこちらをクリックして下さい

生物活性

製品説明 Galeterone (TOK-001) is a selective CYP17 inhibitor and androgen receptor (AR) antagonist with IC50 of 300 nM and 384 nM, respectively, and is a potent inhibitor of human prostate tumor growth. Phase 2.
Targets
CYP17 [1]
(Cell-free assay)		 Androgen Receptor [1]
(PC3AR)
300 nM 384 nM
In Vitro
In vitro Galeterone is effective at preventing binding of [3H]-R1881 to the mutant LNCaP AR (T877A) with IC50 of 845 nM. Galeterone inhibits the DHT-induced proliferation of LNCaP and LAPC4 cells in a dose-dependent manner with IC50 of 6 μM and 3.2 μM, respectively. [1] Galeterone also inhibits the binding of [3H]-R1881 to the T575A mutant AR in PC3 cells with IC50 of 454 nM. Galeterone potently inhibits the proliferation of LNCaP and LAPC4 cells in the absence of DHT stimulation with IC50 of 2.6 μM and 4 μM, respectively. Furthermore, Galeterone treatment increases the degradation rate of the AR in a dose-dependent manner. [2] Galeterone potently inhibits the growth of the androgen-independent cell lines PC-3 and DU-145 in a dose-dependent manner with GI50 of 7.82 μM and 7.55 μM, respectively. Galeterone induces the endoplasmic reticulum stress response resulting in down-regulation of cyclin D1 protein expression and cyclin E2 mRNA. [3] Galeterone effectively inhibits proliferation of HP-LNCaP and C4-2B cell lines with IC50 of 2.9 μM and 9.7 μM, respectively. Galeterone treatment at 1 μM effectively inhibits androgen receptor activation in LNCaP cells (50%) and HP-LNCaP cells (70%). Galeterone decreases activation of the androgen receptor in both LNCaP cells and HP-LNCaP cells with IC50 of 1 μM and 411 nM, respectively, and down-regulates androgen receptor protein expression by 50% after 24 hour of treatment. [4] Galeterone reduces AR protein and mRNA expression, antagonizes AR-dependent promoter activation induced by androgen, and significantly reduces the phospho-4EBP1 levels. [6]
Kinase Assay In vitro assay of CYP17
The in vitro CYP17 inhibitory activity of Galeterone is evaluated using rapid acetic acid releasing assay (AARA), utilizing intact P450c17-expressing E. coli as the enzyme source. It involves the use of [21-3H]-17α-hydroxypregnenolone as the substrate, and CYP17 activity is measured by the amount of tritiated acetic acid formed during the cleavage of the C-21 side chain of the substrate. IC50 value is obtained directly from plots relating percentage inhibition versus inhibitor concentration over appropriate ranges.
細胞実験 細胞株 LNCaP and LAPC4
濃度 Dissolved in DMSO, final concentrations ~20 μM
反応時間 7 days
実験の流れ

Cells are seeded in 24 well multi-well plates. Cells are treated with the increasing concentration of Galeterone in steroid free medium with or without 1 nM DHT (LNCaP), or 10 nM DHT (LAPC4) and allowed to grow for 7 days. The number of viable cells is compared by MTT assay (LAPC4) or XTT assay (LNCaP) on the 7th day.
In Vivo
In Vivo Administration of Galeterone at 50 mg/kg twice daily is very effective at inhibiting the growth of androgen-dependent LAPC4 human prostate tumor xenograft, with a 93.8% reduction in the mean final tumor volume compared with controls, and it is also significantly more effective than castration. [1] Treatment of Galeterone (0.13 mM/kg twice daily) or Galeterone (0.13 mmol/kg twice daily) plus castration induces regression of LAPC4 tumor xenografts in SCID mice by 26.55% and 60.67%, respectively. Treatments with Galeterone or Galeterone plus castration causes marked reduction in AR protein of 10- and 5-fold, respectively. [2]
動物実験 動物モデル Male severe combined immunodeficient (SCID) mice inoculated subcutaneously (s.c.) with LAPC4 cells
投与量 50 mg/kg
投与経路 Injection s.c. twice daily
NCT Number Recruitment Conditions Sponsor/Collaborators Start Date Phases
NCT02729376 Completed
Healthy
LTN PHARMACEUTICALS INC.
 March 2016 Phase 1

化学情報

分子量 388.55 化学式

C26H32N2O
CAS No. 851983-85-2 SDF Download Galeterone SDFをダウンロードする
Smiles CC12CCC(CC1=CCC3C2CCC4(C3CC=C4N5C=NC6=CC=CC=C65)C)O
保管

In vitro
Batch:

Ethanol : 40 mg/mL

DMSO : 24 mg/mL ( (61.76 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

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

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）

mg/kg g μL 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。

技術サポート

ストックの作り方、阻害剤の保管方法、細胞実験や動物実験の際に注意すべき点など、製品を取扱う時に問い合わせが多かった質問に対しては取扱説明書でお答えしています。

Handling Instructions

他に質問がある場合は、お気軽にお問い合わせください。

* 必須

大学・企業名を記入してください
名前を記入してください
電子メール・アドレスを記入してください 有効なメールアドレスを入力してください
お問い合わせ内容をご入力ください
Tags: Galeteroneを買う | Galeterone ic50 | Galeterone供給者 | Galeteroneを購入する | Galeterone費用 | Galeterone生産者 | オーダーGaleterone | Galeterone化学構造 | Galeterone分子量 | Galeterone代理店