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Complexation with β-cyclodextrin enhances apoptosis-mediated cytotoxic effect of harman in chemoresistant BRAF-mutated melanoma cells.

Authors :
Ferraz CAA
de Oliveira Júnior RG
de Oliveira AP
Groult H
Beaugeard L
Picot L
de Alencar Filho EB
Almeida JRGDS
Nunes XP
Source :
European journal of pharmaceutical sciences : official journal of the European Federation for Pharmaceutical Sciences [Eur J Pharm Sci] 2020 Jul 01; Vol. 150, pp. 105353. Date of Electronic Publication: 2020 Apr 23.
Publication Year :
2020

Abstract

Harman, a natural β-carboline alkaloid, has recently gained considerable interest due to its anticancer properties. However, its physicochemical characteristics and poor oral bioavailability have been limiting factors for its pharmaceutical development. In this paper, we described the complexation of harman (HAR) with β-cyclodextrin (βCD) as a promising alternative to improve its solubility and consequently its cytotoxic effect in chemoresistant melanoma cells (A2058 cell line). Inclusion complexes (βCD-HAR) were prepared using a simple method and then characterized by FTIR, NMR and SEM techniques. Through in silico studies, the mechanism of complexation of HAR with βCD was elucidated in detail. Both HAR and βCD-HAR promoted cytotoxicity, apoptosis, cell cycle arrest and inhibition of cell migration in melanoma cells. Interestingly, complexation of HAR with βCD enhanced its pro-apoptotic effect by increasing of caspase-3 activity (p < 0.05), probably due to an improvement in HAR solubility. In addition, HAR and βCD-HAR sensitized A2058 cells to vemurafenib, dacarbazine and 5FU treatments, potentializing their cytotoxic activity. These findings suggest that complexation of HAR with natural polymers such as βCD can be useful to improve its bioavailability and antimelanoma activity.<br />Competing Interests: Declaration of Competing Interest There are no conflict of interest to declare.<br /> (Copyright © 2020 Elsevier B.V. All rights reserved.)

Details

Language :
English
ISSN :
1879-0720
Volume :
150
Database :
MEDLINE
Journal :
European journal of pharmaceutical sciences : official journal of the European Federation for Pharmaceutical Sciences
Publication Type :
Academic Journal
Accession number :
32334103
Full Text :
https://doi.org/10.1016/j.ejps.2020.105353