Dehydroroyleanone as a Building Block for a Drug Delivery Platform Based on Self-Assembled Nanoparticles: Structural Studies and Chemical Modification

Catarina García, Carlos E.S. Bernardes, M.F.M. Piedade, G. Fumagalli, Eleonora Colombo, Ana M. Díaz-Lanza, Catarina P. Reis, Isabel Correia, Lia Ascensão, Daniele Passarella, Manuel E. Minas da Piedade, Patrícia Rijo

ACS Omega 2022, 7, 44180-41186.

DOI: 10.1021/acsomega.2c05353.

Abstract

6,7-Dehydroroyleanone (DHR) is a caspase-induced cytotoxic abietane diterpene, frequently found on Plectranthus spp. A pharmaceutical formulation consisting of a DHR-squalene conjugate was synthesized and analyzed by different techniques such as scanning electron microscopy (SEM). The facile production of the dispersion of DHR-squalene conjugate nanoparticles in phosphate buffer (pH 7.4) suggests that this nanodelivery platform may be an effective system to improve the solubility and bioavailability of DHR, so that therapeutical systemic levels may be achieved.

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