Product Name: MLN-4924(Pevonedistat)
 CAT#: A-1139

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 Synonym:MLN 4924;Pevonedistat, Nedd8-activating enzyme inhibitor MLN4924

MLN-4924 Chemical Structure MLN-4924 chemical structure

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IUPAC/Chemical name: ((1S,2S,4R)-4-(4-(((S)-2,3-dihydro-1H-inden-1-yl)amino)-7H-pyrrolo[2,3-d]pyrimidin-7-yl)-2-hydroxycyclopentyl)methyl sulfamate

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Biological Activity
MLN4924 is a first-in-class cancer drug that inhibits the Nedd8-activating enzyme (NAE).
In vivo administration of MLN4924 to mice bearing xenograft tumors of OCI-Ly10 and OCI-Ly19 resulted in a pharmacodynamic response of NAE pathway inhibition. In both models, a single dose of MLN4924 resulted in time and dose-dependent inhibition of total neddylated cullin levels and stabilization of CDL substrates including the CDL3Keap1 substrate, Nrf-2. Notably, in the OCI-Ly10 model, a single dose of MLN4924 resulted in a marked elevation of pIkBa levels, indicative of NF-kB pathway inhibition, and induction of apoptosis. In both OCI-Ly10 and OCI-Ly19 xenograft models, inhibition of the NAE pathway following repeated daily and intermittent dosing of MLN4924 translated into significant tumor growth inhibition. In the OCI-Ly10 model tumor regressions were observed showing this model to be particularly sensitive to MLN4924 treatment, reflecting the addiction of these tumors to NF-kB signaling. Additionally we demonstrate an inhibition of the NAE pathway and NF-KB signaling in a primary human tumor DLBCL xenograft model (PHTX-22L) resulting in tumor regressions following MLN4924 treatment. In summary, in tumors dependent on NF-kB signaling for growth and survival, MLN4924 inhibition of CDL activity provides a novel mechanism for targeted NF-kB pathway modulation and therapeutic intervention. In addition, these data demonstrate that MLN4924 is a novel agent that has broad activity in pre-clinical models of lymphoma. (source: Michael Milhollen, Usha Narayanan*, Allison J Berger, Michael Thomas, Tary Traore, Jie Yu, Julie Zhang, Erik Koenig, James J. Garnsey, Steven P. Langston, Teresa A Soucy, and Peter G Smith, MLN4924, a Novel Small Molecule Inhibitor of Nedd8-Activating Enzyme, Demonstrates Potent Anti-Tumor Activity in Diffuse Large B-Cell Lymphom, 50th ASH Annual Meeting and Exposition, or see website:
Technical Data
Formula: C21H25N5O4S
M.Wt: 443.16
Solubility: DMSO
CAS #: 905579-51-3
Optical purity: 100% by chiral HPLC
Chemical Purity: >99% by HPLC
Storage Conditions :Room temperature, or -20ºC for 2 year.
MLN-4924 MSDS MLN-4924 CoA
The function and survival of normal and malignant plasma cells depends on the elaborately regulated ubiquitin proteasome system. Proteasome inhibitors such as bortezomib have proved to be highly effective in the treatment of multiple myeloma (MM), and their effects are related to normal protein homeostasis which is critical for plasma cell survival. Many ubiquitin ligases are regulated by conjugation with NEDD8. Therefore, neddylation may also impact survival and proliferation of malignant plasma cells. Here, we show that MLN4924, a potent NEDD8 activating enzyme (NAE) inhibitor, induced cytotoxicity in MM cell lines, and its antitumor effect is associated with suppression of the AKT and mammalian target of rapamycin (mTOR) signaling pathways through increased expression of REDD1. Combining MLN4924 with the proteasome inhibitor bortezomib induces synergistic apoptosis in MM cell lines which can overcome the prosurvival effects of growth factors such as interleukin-6 and insulin-like growth factor-1. Altogether, our findings demonstrate an important function for REDD1 in MLN4924-induced cytotoxicity in MM and also provide a promising therapeutic combination strategy for myeloma.
© 2014 by The American Society of Hematology.

Papers have cited using Active Biochemicals MLN-4924

1. Lack of SMALL ACIDIC PROTEIN 1 (SMAP1) causes increased sensitivity to an inhibitor of RUB/NEDD8-activating enzyme in Arabidopsis seedlings
SMALL ACIDIC PROTEIN 1 (SMAP1) functions upstream of the degradation of AUX/IAA-proteins in the response to 2,4-dichlorophenoxyacetic acid and physically interacts with the COP9 SIGNALOSOME (CSN). Also, its function is linked to RELATED TO UBIQUITIN (RUB) modification. To further investigate the relationship between SMAP1 and the RUB modification system, we examined the effect of MLN4924, an inhibitor of RUB/NEDD8-activating E1 enzyme, on the growth of Arabidopsis thaliana. We found that the anti-auxin resistant 1 mutants, which lack SMAP1, are more sensitive to MLN4924 than wild type and that SMAP1 is responsible for this hypersensitivity. This new evidence supports our previous speculation that SMAP1 acts in Cullin-RING ubiquitin E3 ligase regulated signaling processes via its interaction with components associated with the RUB modification system.
Keywords: SMAP1, Related to ubiquitin, RUB, Nedd8, auxin, MLN4924

2. Specific Small Molecule Inhibitors of Skp2-Mediated p27 Degradation
Chemistry & Biology Volume 19, Issue 12, 21 December 2012, Pages 1515–1524
In the ubiquitin proteasome system, the E3 ligase SCF-Skp2 and its accessory protein, Cks1, promote proliferation largely by inducing the degradation of the CDK inhibitor p27. Overexpression of Skp2 in human cancers correlates with poor prognosis, and deregulation of SCF-Skp2-Cks1 promotes tumorigenesis in animal models. We identified small molecule inhibitors specific to SCF-Skp2 activity using in silico screens targeted to the binding interface for p27. These compounds selectively inhibited Skp2-mediated p27 degradation by reducing p27 binding through key compound-receptor contacts. In cancer cells, the compounds induced p27 accumulation in a Skp2-dependent manner and promoted cell-type-specific blocks in the G1 or G2/M phases. Designing SCF-Skp2-specific inhibitors may be a novel strategy to treat cancers dependent on the Skp2-p27 axis.

3. Degradation of the antiviral component ARGONAUTE1 by the autophagy pathway

4. TRIAD1 and HHARI bind to and are activated by distinct neddylated Cullin-RING ligase complexes
The EMBO Journal (2013) 32, 2848 - 2860 doi:10.1038/emboj.2013.209 Published online: 27 September 2013

5. Neddylation plays an important role in the regulation of murine and human dendritic cell function

6. The IKK Inhibitor Bay 11-7082 Induces Cell Death Independent from Inhibition of Activation of NFκB Transcription Factors
Published: March 20, 2013DOI: 10.1371/journal.pone.0059292
...Here, we comparatively tested NFκB activity abrogation through TPCA-1 (an IKK2 inhibitor), BAY 11-7082 (an IKK inhibitor poorly selective for IKK1 and IKK2), and MLN4924 (an NEDD8 activating enzyme (NAE)-inhibitor), and analyzed their anti-MM activity. Whereas TPCA-1 interfered selectively with activation of the classical NFκB pathway, the other two compounds inhibited classical and alternative NFκB signaling without significant discrimination. Noteworthy, whereas TPCA-1 and MLN4924 elicited rather mild anti-MM effects with slight to moderate cell death induction after 1 day BAY 11-7082 was uniformly highly toxic to MM cell lines and primary MM cells. ...

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