Characterization of serum immunoglobulin in channa striata (BLOCH) and kinetics of its response to Aeromonas hydrophila antigen.
J Immunoassay Immunochem
; 34(3): 283-93, 2013.
Article
em En
| MEDLINE
| ID: mdl-23656248
ABSTRACT
The immunoglobulin (Ig) from the serum of Channa striata was isolated by gel electroelution and characterized further to understand its nature and subsequent applications in studying the immune response. The purity of the sample was confirmed with the presence of a single band on native gradient PAGE and the molecular weight of â¼897 kDa was determined from the gel. In SDS-PAGE, C. striata Ig was reduced to produce two bands corresponding to H (heavy) (â¼72 kDa) and L (light) (â¼27 kDa) chain subunits. Polyclonal antiserum against the purified Ig was raised in a rabbit and adsorbed with 10% liver tissue homogenate of C. striata to enhance its specificity. By an indirect ELISA standardized using the adsorbed rabbit antiserum, the normal serum Ig concentration in C. striata was estimated to be 3.48 mg/mL. Further, a kinetic study of specific immunoglobulin response to formalin-killed Aeromonas hydrophila antigen was undertaken using another indirect ELISA, which showed a significant increase in serum immunoglobulin titer from day 2 onwards and reached its peak at day 14. Subsequently, the Ig titer was dropped from day 21 onwards till the completion of the experiment at day 42, although it was at a significantly higher level than the control.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Perciformes
/
Infecções por Bactérias Gram-Negativas
/
Aeromonas hydrophila
/
Doenças dos Peixes
/
Anticorpos Antibacterianos
/
Antígenos de Bactérias
Limite:
Animals
Idioma:
En
Revista:
J Immunoassay Immunochem
Assunto da revista:
ALERGIA E IMUNOLOGIA
Ano de publicação:
2013
Tipo de documento:
Article
País de afiliação:
Índia