Ataluren (PTC124)

Ataluren (PTC124) selectively induces ribosomal read-through of premature but not normal termination codons, with EC50 of 0.1 μM in HEK293 cells, may provide treatment for genetic disorders caused by nonsense mutations (e.g. CF caused by CFTR nonsense mutation). Phase 3.

CAS No. 775304-57-9

サイズ	価格(税別)	在庫状況
10mM (1mL in DMSO)	JPY 29500	国内在庫あり
10mg	JPY 22000	国内在庫あり
25mg	JPY 37000	国内在庫あり
50mg	JPY 55500	国内在庫あり
100mg	JPY 85500	国内在庫あり
1g	JPY 255000	国内在庫なし(納期7~10日)

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Ataluren (PTC124)関連製品

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シグナル伝達経路

CFTRシグナル伝達経路

CFTR阻害剤の選択性比較

Cell Data

Cell Lines	Assay Type	Concentration	Incubation Time	活性情報	PMID
BAC_MMA∗EGFP	Function Assay	20 μM	72 h	results in a significant increase in median peak fluorescence	23041189
Mut−/−MUTStop+/−	Function Assay	20 μM	72 h	increases the amount of MUT mRNA	23041189
ML1	Function Assay	3.3/10 μM	48 h	increases ARSB activity	22971959
ML2	Function Assay	3.3/10 μM	48 h	increases ARSB activity	22971959
HEK293T	Function Assay	10 µg/ml		restores full-length harmonin a1 (∼80 kDa) in p.R31X-transfected cells	23027640
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生物活性

製品説明

Ataluren (PTC124) selectively induces ribosomal read-through of premature but not normal termination codons, with EC50 of 0.1 μM in HEK293 cells, may provide treatment for genetic disorders caused by nonsense mutations (e.g. CF caused by CFTR nonsense mutation). Phase 3.

特性

Demonstrates oral bioavailability, and an appropriate safety toxicology profile.

Targets

CFTR (nonsense mutant) ^[1]
(HEK293 cells)

In Vitro
In vitro	Compared with Gentamicin which is only active at much higher concentrations, PTC124 is a more potent nonsense-suppressing agent and exhibits 4- to 15-fold stimulation of read-through relative to controls. PTC124 (0.01-3 μM) promotes dose-dependent read-through of all three nonsense codons in HEK293 cells harboring LUC-190 nonsense alleles with the highest read-through at UGA, followed by UAG and then UAA, but it does not suppress multiple proximal nonsense codons. Like Gentamicin, PTC124 is most active when a pyrimidine (in particular cytosine, C) follows the nonsense codon. Consistent with the stable cell line reporter assay, PTC124 (17 μM) promotes significant production of dystrophin in primary muscle cells from Duchenne muscular dystrophy (DMD) patients or MDXMDX mice expressing dystrophin nonsense alleles. PTC124 selectively promotes ribosomal read-through of premature termination but not normal termination codons, even at concentrations substantially greater than the values achieving maximal activity. ^[1]

In Vivo
In Vivo	Due to functional recovery of dystrophin production, oral, intraperitoneal or combined dosing of PTC124 for 2-8 weeks partially rescues functional strength deficit in dystrophic muscles of MDX mice, and results in partial protection against contraction-induced injury in the extensor digitorum longus (EDL) muscles, as well as significant reductions in serum creatine kinase values. ^[1] In Cftr-/- mice expressing a human CFTR-G542X transgene, subcutaneous or oral administration of PTC124 (~60 mg/kg) suppresses the G542X nonsense mutation in a dose-dependent manner, leading to a significant restoration of human (h)CFTR protein expression and function without any effect on nonsense-mediated mRNA decay (NMD) or other aspects of mRNA stability. PTC124 treatment (60 mg/kg) restores 29% of the normal intestinal transepithelial cAMP-stimulated shortcircuit currents observed in Cftr+/+ mice, displaying a significant advantage compared with Gentamicin. ^[2]
動物実験	動物モデル	Cftr-/- hCFTR-G542X transgenic mice
	投与量	~60 mg/kg/day
	投与経路	Subcutaneous injection or oral administration

NCT Number	Recruitment	Conditions	Sponsor/Collaborators	Start Date	Phases
臨床試験 (data from https://clinicaltrials.gov, updated on 2024-01-11)
NCT04336826	Completed	Nonsene Mutation Duchenne Muscular Dystrophy	PTC Therapeutics	December 29 2021	Phase 2
NCT04014530	Recruiting	Colorectal Cancer\|Endometrium Cancer	Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA)\|Merck Sharp & Dohme LLC\|PTC Therapeutics	August 1 2019	Phase 1\|Phase 2
NCT02758626	Completed	Epilepsy	NYU Langone Health\|PTC Therapeutics	November 2016	Phase 2
NCT02819557	Completed	Duchenne Muscular Dystrophy	PTC Therapeutics	June 9 2016	Phase 2
NCT02090959	Terminated	Muscular Dystrophy Duchenne\|Muscular Dystrophies\|Muscular Disorders Atrophic\|Muscular Diseases\|Musculoskeletal Diseases\|Neuromuscular Diseases\|Nervous System Diseases\|Genetic Diseases X-Linked\|Genetic Diseases Inborn	PTC Therapeutics	March 20 2014	Phase 3
NCT01140451	Completed	Cystic Fibrosis	PTC Therapeutics\|Cystic Fibrosis Foundation	August 12 2010	Phase 3

参考
[1] Welch EM, et al. Nature, 2007, 447(7140), 87-91. [2] Du M, et al. Proc Natl Acad Sci U S A, 2008, 105(6), 2064-2069.

参考

化学情報

分子量	284.24	化学式	C₁₅H₉FN₂O₃
CAS No.	775304-57-9	SDF	Download Ataluren (PTC124) SDFをダウンロードする
Smiles	C1=CC=C(C(=C1)C2=NC(=NO2)C3=CC(=CC=C3)C(=O)O)F
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个月-20°Cin solvent

In vitro
Batch:

DMSO : 57 mg/mL ( (200.53 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。

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):