[Experience of application of IgY-technology for laboratory diagnostics of viral infections.]
Vopr Virusol
; 65(1): 21-26, 2020.
Article
em Ru
| MEDLINE
| ID: mdl-32496717
ABSTRACT
INTRODUCTION:
The well-known advantages of class Y antibodies (IgY) from egg yolks of immunized hens in comparison with class G antibodies (IgG) of laboratory animals traditionally used in laboratory diagnosis of infectious diseases determine the stable interest of researchers in using IgY for these purposes (IgY technology). Over the past 20 years, the obvious benefits of IgY technology have been demonstrated for a number of viral and bacterial infections. Goals and objectives. Construction of ELISA systems based on specific IgY for laboratory diagnosis of infections caused by tick-borne encephalitis virus, yellow fever virus, poliovirus. MATERIAL ANDMETHODS:
Obtaining yolk preparations of immunized chickens, obtaining highly purified IgY preparations (salting out, affinity chromatography), constructing ELISA systems for determining virus-specific antigens, testing the parameters of ELISA systems. RESULTS ANDDISCUSSION:
For the first time in laboratory practice, ELISA systems based on the use of specific polyclonal IgY were designed for laboratory diagnosis of topical human viral infections caused by flaviviruses and enteroviruses determination of antigens of tick-borne encephalitis virus, yellow fever virus, 3 types of poliovirus. It was experimentally shown that these ELISA systems have high sensitivity and specificity, which allows them to be used for the semiquantitative and quantitative determination of antigens of these viruses in various materials (infected cell cultures, vaccines, etc.).CONCLUSION:
The ELISA systems developed on the basis of specific IgY for determination of viral antigens can be effectively used for laboratory diagnosis of a number of viral infections, for the validation and control of vaccine preparations.Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Viroses
/
Imunoglobulinas
/
Técnicas de Laboratório Clínico
/
Gema de Ovo
Idioma:
Ru
Ano de publicação:
2020
Tipo de documento:
Article