Section 60
Chapter 59,374

A novel phenylphthalimide derivative, pegylated TC11, improves pharmacokinetic properties and induces apoptosis of high-risk myeloma cells via G2/M cell-cycle arrest

Aida, S.; Hozumi, M.; Ichikawa, D.; Iida, K.; Yonemura, Y.; Tabata, N.; Yamada, T.; Matsushita, M.; Sugai, T.; Yanagawa, H.; Hattori, Y.

Biochemical and Biophysical Research Communications 493(1): 514-520


ISSN/ISBN: 1090-2104
PMID: 28867196
DOI: 10.1016/j.bbrc.2017.08.159
Accession: 059373293

Download citation:  

Despite the development of new drugs for multiple myeloma (MM), the prognosis of MM patients with high-risk cytogenetic abnormalities such as t (4; 14) and del17p remains poor. We reported that a novel phenylphthalimide derivative, TC11, induced apoptosis of MM cells in vitro and in vivo, and TC11 directly bound to α-tubulin and nucleophosmin-1 (NPM1). However, TC11 showed low water solubility and poor pharmacokinetic properties. Here we synthesized a water-soluble TC11-derivative, PEG(E)-TC11, in which HOEtO-TC11 is pegylated with PEG through an ester bond, and we examined its anti-myeloma activity. We observed that PEG(E)-TC11 and its hydrolyzed product, HOEtO-TC11, induced G2/M arrest and the apoptosis of MM cells. Intraperitoneal administration of PEG(E)-TC11 to xenografted mice revealed improved pharmacokinetic properties and significantly delayed tumor growth. TC11 and its derivatives did not bind to cereblon (CRBN), which is a responsible molecule for thalidomide-induced teratogenicity. These results suggest that PEG(E)-TC11 is a good candidate drug for treating high-risk MM.

PDF emailed within 0-6 h: $19.90