Immune response in hamsters immunised with a recombinant fragment of LigA from Leptospira interrogans, associated with carrier molecules

AUTOR(ES)

Oliveira, Thaís L, Bacelo, Kátia L, Schuch, Rodrigo A, Seixas, Fabiana K, Collares, Tiago, Rodrigues, Oscar ED, Vargas, Josimar, Nascimento, Rafaella O do, Dellagostin, Odir A, Hartwig, Daiane D

FONTE

Mem. Inst. Oswaldo Cruz

DATA DE PUBLICAÇÃO

13/10/2016

RESUMO

Immunisation with the C-terminal region of leptospiral immunoglobulin-like A protein (LigANI) has shown promising results against leptospirosis. We evaluated the humoral immune response and protection induced by LigANI associated with carboxyl multi-walled carbon nanotubes (COOH-MWCNTs), CpG oligodeoxynucleotides (CpG ODNs), or Alhydrogel. Animals immunised with CpG ODNs were unable to develop a humoral immune response, whereas immunisation with LigANI and COOH-MWCNTs produced a high level of IgG antibodies, similar to that with LigANI and Alhydrogel, but it was not protective. The use of carbon nanotubes as an adjuvant in subunit vaccines against leptospirosis is a novel approach for improving specific IgG production.

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