Plinabulin VDA chemical

Cat.No.S1176

Plinabulin is a vascular disrupting agent (VDA) against tubulin-depolymerizing with IC50 of 9.8~18 nM in tumor cells. Phase 1/2.
Plinabulin VDA chemical Chemical Structure

Chemical Structure

Molecular Weight: 336.39

Quality Control

Chemical Information, Storage & Stability

Molecular Weight 336.39 Formula

C19H20N4O2

Storage (From the date of receipt)
CAS No. 714272-27-2 Download SDF Storage of Stock Solutions

Synonyms NPI-2358 Smiles CC(C)(C)C1=C(N=CN1)C=C2C(=O)NC(=CC3=CC=CC=C3)C(=O)N2

Solubility

In vitro
Batch:

DMSO : 67 mg/mL ( (199.17 mM) Moisture-absorbing DMSO reduces solubility. Please use fresh DMSO.)

Water : Insoluble

Ethanol : Insoluble

Molarity Calculator

Mass Concentration Volume Molecular Weight

In vivo
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Method for preparing in vivo formulation: Take μL DMSO master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O, mix and clarify.

Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.

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Mechanism of Action

Features
Synthetic analog of NPI-2350 and greater potentcy than NPI-2350.
Targets/IC50/Ki
Tubulin [1]
9.8 nM-18 nM
In vitro

NPI-2358 binds to the tubulin and has potent inhibitory to human tumor cell lines which have overexpressed Pgp or reduced nuclear Topo II catalytic activity, with IC50 from 9.8 to 18 nM. NPI-2358 is able to rapidly induce tubulin depolymerization in HUVECs and monolayer permeability even at 20 nM. [1] NPI-2358 induces cell death in MM cells with IC50 of 8-10 nM, which due to trigger early mitotic arrest in MM cells. NPI-2358 also inhibits tubule formation and migration of endothelial as well as MM cells, which leads to disrupt tumor vasculature. NPI-2358 could induces cell death in patient MM (CD138+) cells without effecting viability of normal mononuclear cells. Blockade of JNK abrogates NPI-2358-induced mitotic arrest or MM cell death. [2]

In vivo

NPI-2358 (7.5 mg/kg) inhibits tumor growth in human plasmacytoma mouse xenograft models at well-tolerated doses. [2] NPI-2358 induces a time- and dose-dependent decrease in tumour perfusion. NPI-2358 is more sensitive to the KHT sarcoma than the C3H tumour, while radiation response could enhance the antitumor activity in both models. [3]

References

Clinical Trial Information

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

NCT Number Recruitment Conditions Sponsor/Collaborators Start Date Phases
NCT02846792 Terminated
ALK Gene Translocation|EGFR Activating Mutation|Recurrent Non-Small Cell Lung Carcinoma|ROS1 Gene Translocation|Stage IIIB Non-Small Cell Lung Cancer AJCC v7|Stage IV Non-Small Cell Lung Cancer AJCC v7
University of Washington|National Cancer Institute (NCI)
June 14 2017 Phase 1|Phase 2
NCT00630110 Completed
Cancer
Nereus Pharmaceuticals Inc.
February 2008 Phase 1|Phase 2

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