Abstract：
:Leishmania major infections induce the development of a CD4(+) T-helper 1 (Th1) response that not only controls the primary infection but also results in life-long immunity to reinfection. How that immunity is maintained is unknown, although because of the existence of infection-induced immunity, there has been an assumption that the development of a vaccine against leishmaniasis would be relatively easy. This has turned out not to be the case. One problem has been the finding that a large part of the immunity induced by a primary infection depends upon the presence of persistent parasites. Nevertheless, there are ample situations where immunologic memory persists without the continued presence of antigen, providing the prospect that a non-live vaccine for leishmaniasis can be developed. To do so will require an understanding of the events involved in the development of an effective protective T-cell response and, more importantly, an understanding of how to maintain that response. Here, we review work from our laboratory, describing how Th1 cells develop in L. major-infected mice, the nature of the memory T cells that provide protection to reinfection, and how that information may be utilized in the development of vaccines.
journal_name
Immunol Revjournal_title
Immunological reviewsauthors
Scott P,Artis D,Uzonna J,Zaph Cdoi
10.1111/j.0105-2896.2004.00198.xkeywords:
subject
Has Abstractpub_date
2004-10-01 00:00:00pages
318-38eissn
0105-2896issn
1600-065Xpii
IMR198journal_volume
201pub_type
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