Characterization of the Neospora caninum peroxiredoxin: a novel peroxidase and antioxidant enzyme

Brochi, Jade Cabestre Venancio; Pereira, Luíz Miguel; Baroni, Luciana; Abreu-Filho, Péricles Gama; Yatsuda, Ana Patrícia

doi:10.1007/s00436-022-07497-5

Cited by 3 publications

(1 citation statement)

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“…caninum peroxiredoxin (NcPrx) was recently reported to have peroxidase and antioxidant functions. The recombinant NcPrx (rNcPrx) protein exhibited a strong reaction with the polyclonal anti-rNcPrx serum, as observed with native NcPrx [21]. However, the antigenicity of NcPrx remains unknown.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Immunodiagnostic Performances of Neospora caninum Peroxiredoxin 2 (NcPrx2), Microneme 4 (NcMIC4), and Surface Antigen 1 (NcSAG1) Recombinant Proteins for Bovine Neosporosis

Udonsom,

Adisakwattana,

Popruk

et al. 2024

Animals

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Bovine neosporosis is among the main causes of abortion in cattle worldwide, causing serious economic losses in the beef and dairy industries. A highly sensitive and specific diagnostic method for the assessment of the epidemiology of the disease, as well as it surveillance and management, is imperative, due to the absence of an effective treatment or vaccine against neosporosis. In the present study, the immunodiagnostic performance of Neospora caninum peroxiredoxin 2 (NcPrx2), microneme 4 (NcMIC4), and surface antigen 1 (NcSAG1) to detect IgG antibodies against N. caninum in cattle were evaluated and compared with that of the indirect fluorescent antibody test (IFAT). The results revealed that NcSAG1 had the highest sensitivity and specificity, with values of 88.4% and 80.7%, respectively, followed by NcPrx2, with a high sensitivity of 87.0% but a low specificity of 67.0%, whereas NcMIC4 showed sensitivity and specificity of 84.1% and 78.9%, respectively, when compared with IFAT. A high degree of agreement was observed for NcSAG1 (k = 0.713) recombinant protein, showing the highest diagnostic capability, followed by NcMIC4 (k = 0.64) and NcPrx2 (k = 0.558). The present study demonstrates that NcSAG1 is helpful as an antigen marker and also demonstrates the potential immunodiagnostic capabilities of NcPrx2 and NcMIC4, which could serve as alternative diagnostic markers for detecting N. caninum infection in cattle. These markers may find utility in future treatment management, surveillance, and risk assessment of neosporosis in livestock or other animal host species. Further research should be directed toward understanding the in vivo immune response differences resulting from immunization with both recombinant proteins.

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Section: Introductionmentioning

confidence: 99%