TAK-243 (MLN7243) UAE inhibitor

Cat.No.S8341

TAK-243 (MLN7243) is a potent, mechanism-based small-molecule inhibitor of the ubiquitin activating enzyme (UAE) with an IC50 of 1 ± 0.2 nM in the UBCH10 E2 thioester assay. It has minimal inhibitory activity in a panel of kinase and receptor assays, as well as on human carbonic anhydrase type I and type II. TAK-243 (MLN7243) induces ER stress, abrogates NFκB pathway activation and promotes apoptosis.
TAK-243 (MLN7243) E1 Activating inhibitor Chemical Structure

Chemical Structure

Molecular Weight: 519.52

Quality Control

Chemical Information, Storage & Stability

Molecular Weight 519.52 Formula

C19H20F3N5O5S2

Storage (From the date of receipt) 3 years -20°C powder
CAS No. 1450833-55-2 -- Storage of Stock Solutions

Synonyms N/A Smiles N[S;v6](=O)(=O)OCC1CC(NC2=CC=NC3=CC(=N[N]23)C4=CC(=CC=C4)SC(F)(F)F)C(O)C1O

Solubility

In vitro
Batch:

DMSO : 100 mg/mL ( (192.48 mM) Moisture-absorbing DMSO reduces solubility. Please use fresh DMSO.)

Ethanol : 25 mg/mL

Water : Insoluble

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In vivo
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Mechanism of Action

Targets/IC50/Ki
NF-κB [2]
UAE [1]
(Cell-free assay)
1 nM
In vitro

TAK-243 (MLN7243) treatment causes depletion of cellular ubiquitin conjugates, resulting in disruption of signaling events, induction of proteotoxic stress, and impairment of cell cycle progression and DNA damage repair pathways. This compound has weaker inhibitory activity against other closely related E1 ubiquitin-like activating enzymes such as Fat10-activating enzyme (UBA6; 7 ± 3 nM), NEDD8-activating enzyme (NAE; 28 ± 11 nM), SUMO-activating enzyme (SAE; 850 ± 180 nM), ISG15-activating enzyme (UBA7; 5,300 ± 2,100 nM) and autophagy-activating enzyme (ATG7; >10,000 nM) than it does against UAE. It inhibits UAE from transferring ubiquitin to an E2 enzyme. This chemical shows equally potent inhibition of the two E1 enzymes capable of activating ubiquitin (UBA6 and UAE), as indicated by comparable decreases in levels of charged USE1 and UBCH10. Downstream UAE pathway inhibition by this agent is evident, as shown by a dose- and time-dependent loss of both polyubiquitin chains and mono-ubiquitylated histone H2B; however, this treatment does not affect UAE (UBE1) protein levels. It also causes accumulation of short-lived proteins such as c-Jun, c-Myc, MCL1 and p53[1].

In vivo

TAK-243 (MLN7243) treatment causes death of cancer cells and, in primary human xenograft studies. This compound demonstrates broad antitumor activity in models of solid and hematological tumors[1].

References

Clinical Trial Information

(data from https://clinicaltrials.gov, updated on 2024-05-22)

NCT Number Recruitment Conditions Sponsor/Collaborators Start Date Phases
NCT03816319 Not yet recruiting
Myelodysplastic Syndrome|Recurrent Acute Myeloid Leukemia|Refractory Acute Myeloid Leukemia|Refractory Chronic Myelomonocytic Leukemia|Refractory High Risk Myelodysplastic Syndrome
National Cancer Institute (NCI)
August 30 2024 Phase 1
NCT02045095 Terminated
Advanced Malignant Solid Tumors
Millennium Pharmaceuticals Inc.|Takeda
January 31 2014 Phase 1

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