Fluorescence spectroscopy monitoring of the conformational restraint of formaldehyde- and glutaraldehyde-treated infectious bursal disease virus proteins.

Abstract:

:Interaction of native proteinaceous antigens during the recognition and the effector phases of an immune response leads to antigenic conformational modifications which may elicit additional specific immune response. Protein cross-linking and conformation restraining formaldehyde and glutaraldehyde have been extensively used in vaccine preparation, but the relative efficiencies of conformational restraint at concentrations similar to those used in vaccine preparation have not been investigated. We addressed this issue by comparing the extent of conformational restraint of virus proteins in formaldehyde- and glutaraldehyde-treated virus preparations by monitoring the fluorescence intensities (I320) of infectious bursal disease virus preparations (IBDV) and those of untreated virus during thermal denaturation. Formaldehyde was found to cause no detectable conformational restraint at 0.01% and only very weak restraint at 1%, while glutaraldehyde caused very strong conformational restraint at 0.01%. It is proposed how conformational restraint of proteinaceous antigens may alter ensuing immunity.

journal_name

Vaccine

journal_title

Vaccine

authors

Cepica A,Beauregard M,Qian B

doi

10.1016/s0264-410x(98)00121-2

subject

Has Abstract

pub_date

1998-12-01 00:00:00

pages

1957-61

issue

20

eissn

0264-410X

issn

1873-2518

pii

S0264410X98001212

journal_volume

16

pub_type

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