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A Potential Nanomedicine Consisting of Heparin‐Loaded Polysaccharide Nanocarriers for the Treatment of Asthma
Author(s) -
OyarzunAmpuero Felipe A.,
Brea Jose,
Loza Maria I.,
Alonso Maria J.,
Torres Dolores
Publication year - 2012
Publication title -
macromolecular bioscience
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.924
H-Index - 105
eISSN - 1616-5195
pISSN - 1616-5187
DOI - 10.1002/mabi.201100102
Subject(s) - nanocarriers , nanomedicine , nanocapsules , zeta potential , chemistry , pharmacology , drug delivery , drug , heparin , nanoparticle , nanotechnology , materials science , medicine , biochemistry , organic chemistry
A new nanomedicine consisting of chitosan/carboxymethyl‐β‐cyclodextrin loaded with unfractioned or low‐molecular‐weight heparin is described and its potential in asthma treatment is evaluated. The nanoparticles are prepared by ionotropic gelation showing a size that between 221 and 729 nm with a positive zeta potential. The drug association efficiency is higher than 70%. Developed nanosystems are stable in Hank's balanced salt solution at pH = 6.4, releasing the drug slowly. Ex vivo assays show that nanocarriers lead to an improvement of heparin preventing mast cell degranulation. These results agree with the effective cellular internalization of the fluorescently labeled nanocarriers, and suggest these nanomedicines as promising formulations for asthma treatment.