Title
Deferasirox-TAT(47-57) peptide conjugate as a water soluble, bifunctional iron chelator with potential use in neuromedicine
Date Issued
22 October 2015
Access level
metadata only access
Resource Type
journal article
Author(s)
Goswami D.
Vitorino H.A.
Silvestre D.M.
Nomura C.S.
Machini M.T.
Espósito B.P.
Universidade de São Paulo
Publisher(s)
Kluwer Academic Publishers
Abstract
Deferasirox (DFX), an orally active and clinically approved iron chelator, is being used extensively for the treatment of iron overload. However, its water insolubility makes it cumbersome for practical use. In addition to this, the low efficacy of DFX to remove brain iron prompted us to synthesize and evaluate a DFX-TAT(47-57) peptide conjugate for its iron chelation properties and permeability across RBE4 cell line, an in vitro model of the blood-brain barrier. The water-soluble conjugate was able to remove labile iron from buffered solution as well as from iron overloaded sera, and the permeability of DFX-TAT(47-57) conjugate into RBE4 cells was not affected compared to parent deferasirox. The iron bound conjugate was also able to translocate through the cell membrane.
Start page
869
End page
877
Volume
28
Issue
5
Language
English
OCDE Knowledge area
Neurología clínica
Ciencias socio biomédicas (planificación familiar, salud sexual, efectos políticos y sociales de la investigación biomédica)
Subjects
Scopus EID
2-s2.0-84941958506
PubMed ID
Source
BioMetals
ISSN of the container
09660844
Sponsor(s)
DG received a postdoctoral fellowship from São Paulo Research Foundation (FAPESP 11/18958-0). FAPESP and CNPq funded these investigations. The authors thank Dr. Cleber Wanderlei Liria for discussions and technical assistance.
Sources of information:
Directorio de Producción Científica
Scopus