1. Cross-presentation and genome-wide screening reveal candidate T cells antigens for a herpes simplex virus type 1 vaccine
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Jing, Lichen, Haas, Jurgen, Chong, Tiana M., Bruckner, Joseph J., Dann, Greg C., Dong, Lichun, Marshak, Joshua O., McClurkan, Christopher L., Yamamoto, Tori N., Bailer, Susanne M., Laing, Kerry J., Wald, Anna, Verjans, Georges M.G.M., and Koelle, David M.
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T cells -- Health aspects -- Genetic aspects -- Research ,Herpes simplex -- Health aspects -- Causes of -- Genetic aspects -- Prevention -- Research ,Herpesvirus vaccines -- Health aspects -- Research ,Health care industry - Abstract
Herpes simplex virus type 1 (HSV-1) not only causes painful recurrent oral-labial infections, it can also cause permanent brain damage and blindness. There is currently no HSV-1 vaccine. An effective vaccine must stimu-late coordinated T cell responses, but the large size of the genome and the low frequency of HSV-1-specific T cells have hampered the search for the most effective T cell antigens for inclusion in a candidate vaccine. We have now developed what we believe to be novel methods to efficiently generate a genome-wide map of the responsiveness of HSV-1-specific T cells, and demonstrate the applicability of these methods to a second complex microbe, vaccinia virus. We used cross-presentation and CD137 activation-based FACS to enrich for polyclonal CD[8..sup.+] T effector T cells. The HSV-1 proteome was prepared in a flexible format for analyzing both CD[8.sup.+] and CD[4.sup.+] T cells from study participants. Scans with participant-specific panels of artificial APCs identi-fied an oligospecific response in each individual. Parallel CD137-based CD[4.sup.+] T cell research showed discrete oligospecific recognition of HSV-1 antigens. Unexpectedly, the two HSV-1 proteins not previously considered as vaccine candidates elicited both CD[8.sup.+] and CD[4.sup.+] T cell responses in most HSV-1-infected individuals. In this era of microbial genomics, our methods - also demonstrated in principle for vaccinia virus for both CD[8.sup.+] and CD[4.sup.+] T cells - should be broadly applicable to the selection of T cell antigens for inclusion in candidate vaccines for many pathogens., Introduction Herpes simplex virus type 1 (HSV-1) infects 60% of the US population and has a significant cumulative health care burden in addition to causing painful recurrent oral-labial infections. For [...]
- Published
- 2012
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