Borges, I. P. et al. (2018) Antiparasitic effects induced by polyclonal IgY antibodies anti-phospholipase A2 from Bothrops pauloensis venom. International Journal of Biological Macromolecules, 112, pp. 333-342. (doi: 10.1016/j.ijbiomac.2018.01.178) (PMID:29391226)
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Abstract
Activities of phospholipases (PLAs) have been linked to pathogenesis in various microorganisms, and implicated in cell invasion and so the interest in these enzymes as potential targets that could contribute to the control of parasite survival and proliferation. Chicken eggs immunized with BnSP-7, a Lys49 phospholipase A2 (PLA2) homologue from Bothrops pauloensis snake venom, represent an excellent source of polyclonal antibodies with potential inhibitory activity on parasite PLAs. Herein, we report the production, characterization and anti-parasitic effect of IgY antibodies from egg yolks of hens immunized with BnSP-7. Produced antibodies presented increasing avidity and affinity for antigenic toxin epitopes throughout immunization, attaining a plateau after 4 weeks. Pooled egg yolks-purified anti-BnSP-7 IgY antibodies were able to specifically recognize different PLA2s from Bothrops pauloensis and Bothrops jararacussu venom. Antibodies also neutralized BnSP-7 cytotoxic activity in C2C12 cells. Also, the antibodies recognized targets in Leishmania (Leishmania) amazonensis and Toxoplasma gondii extracts by ELISA and immunofluorescence assays. Anti-BnSP-7 IgY antibodies were cytotoxic to T. gondii tachyzoite and L. (L.) amazonensis promastigotes, and were able to decrease proliferation of both parasites treated before infection. These data suggest that the anti-BnSP-7 IgY is an important tool for discovering new parasite targets and blocking parasitic effects.
| Item Type: | Articles |
|---|---|
| Additional Information: | This study was supported by Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) (1594/2011), Fundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG) (CBB-APQ– 01637-15), Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) (307336/2015-8) and Federal University of Uberlândia (UFU), Brazil. |
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Ferreira Silva, Miss Mariana |
| Authors: | Borges, I. P., Ferreira Silva, M., Santiago, F. M., de Faria, L. S., Júnior, Á. F., da Silva, R. J., Costa, M. S., de Freitas, V., Yoneyama, K. A. G., Ferro, E. A. V., Lopes, D. S., Rodrigues, R. S., and de Melo Rodrigues, V. |
| College/School: | College of Medical Veterinary and Life Sciences > School of Infection & Immunity |
| Journal Name: | International Journal of Biological Macromolecules |
| Publisher: | Elsevier |
| ISSN: | 0141-8130 |
| ISSN (Online): | 1879-0003 |
| Published Online: | 31 January 2018 |
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