Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
11026135 | International Journal of Biological Macromolecules | 2018 | 8 Pages |
Abstract
Snakebite envenoming is a tropical disease neglected worldwide. In Brazil, the Crotalus durissus cascavella (CDC) snake belongs to a genus with venom of highest lethality. A search for new immunoadjuvants aimed to expand the therapeutic alternatives to improve vaccines and antivenom. This approach proposed to produce small and narrow-sized cationic CDC venom-loaded chitosan nanoparticles (CHNP) able to induce antibody response against the CDC venom. The ionic gelation method induced the formation of stable and slightly smooth spherical nanoparticles (<160â¯nm) with protein loading efficiency superior to 90%. The interactions between venom proteins and CHNP assessed using FT-IR spectroscopy corroborated with the in vitro release behavior of proteins from nanoparticles. Finally, the immunization animal model using BALB/c mice demonstrated the higher effectiveness of CDC venom-loaded CHNP compared to aluminum hydroxide, a conventional immunoadjuvant. Thus, CHNPs loaded with CDC venom exhibited a promising biotechnological approach to immunotherapy.
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Authors
Fiamma Gláucia-Silva, Manoela Torres-Rêgo, Karla Samara Rocha Soares, Igor Zumba Damasceno, Denise Vilarinho Tambourgi, Arnóbio Antônio da Silva-Júnior, Matheus de Freitas Fernandes-Pedrosa,