Katrak, Kersi and Mahon, Bernard P. and Jones, Wendy C. and Briutigam, Sandra
(1992)
Preparative separation of foreign antigens for highly efficient
presentation to T cells in vitro.
Journal of Immunological Methods,, 156.
pp. 247-254.
ISSN 0022-1759
Abstract
A method is described for the separation and purification of proteins from complex mixtures of
foreign antigens in a form suitable for stimulating T cells in vitro. The technique involves electrophoretic
separation of proteins followed by elution, concentration and adsorption of the polypeptide subunits to
latex microspheres. Alternatively, where a specific antibody is available, proteins may be affinity-purified
from a heterogeneous mixture of antigens, using antibody-coated latex microspheres. Nanogram quantities
of protein coupled to latex were shown to be highly efficient stimulators of antigen-specific T cells as
tested by in vitro proliferation and cytokine release assays. The utility of this technique was demonstrated
using poliovirus capsid proteins separated by SDS-polyacrylamide gel electrophoresis (PAGE)
and coupled to latex microspheres for specificity analysis of T cell clones. Antigen reactivity of the T cell
clones was confirmed using recombinant baculoviruses expressing individual poliovirus proteins. Furthermore,
recombinant proteins coupled to latex microspheres were used for efficient stimulation and in
vitro propagation of T cell clones specific for the simian immunodeficiency virus (SIV) envelope (env)
protein. Although the technique is illustrated in this report using viral antigens, it has also proved to be
an efficient method for the separation of bacterial antigens in studies of polyclonal T cell responses to
Bordetella pertussis antigens.
| Item Type: |
Article
|
| Keywords: |
Viral antigen; Bacterial antigen; T cell proliferation; T cell clone; Latex microsphere; SDS-PAGE; |
| Academic Unit: |
Faculty of Science and Engineering > Biology |
| Item ID: |
7161 |
| Depositing User: |
Bernard Mahon
|
| Date Deposited: |
06 Jul 2016 09:59 |
| Journal or Publication Title: |
Journal of Immunological Methods, |
| Publisher: |
Elsevier |
| Refereed: |
Yes |
| URI: |
|
| Use Licence: |
This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available
here |
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