Abstract:
:The relay hypothesis [R. Nayak, S. Mitra-Kaushik, M.S. Shaila, Perpetuation of immunological memory: a relay hypothesis, Immunology 102 (2001) 387-395] was earlier proposed to explain perpetuation of immunological memory without requiring long lived memory cells or persisting antigen. This hypothesis envisaged cycles of interaction and proliferation of complementary idiotypic B cells (Burnet cells) and anti-idiotypic B cells (Jerne cells) as the primary reason for perpetuation of immunological memory. The presence of peptidomimics of antigen in anti-idiotypic antibody and their presentation to antigen specific T cells was postulated to be primary reason for perpetuation of T cell memory. Using a viral hemagglutinin as a model, in this work, we demonstrate the presence of peptidomimics in the variable region of an anti-idiotypic antibody capable of functionally mimicking the antigen derived peptides. A CD8+ CTL clone was generated against the hemagglutinin protein which specifically responds to either peptidomimic synthesizing cells or peptidomimic pulsed antigen presenting cells. Thus, it appears reasonable that a population of activated antigen specific T cells is maintained in the body by presentation of peptidomimic through Jerne cells and other antigen presenting cells long after immunization.
journal_name
Cell Immunoljournal_title
Cellular immunologyauthors
Vani J,Nayak R,Shaila MSdoi
10.1016/j.cellimm.2007.05.001subject
Has Abstractpub_date
2007-03-01 00:00:00pages
17-25issue
1eissn
0008-8749issn
1090-2163pii
S0008-8749(07)00082-2journal_volume
246pub_type
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journal_title:Cellular immunology
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