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题目:: A single antigen-specific B cell can conjugate to either a type 1 or a type 2 helper T cell.
作者:: Sanders(V M),Fernandez-Botran(R),Coffman(R L),Mosmann(T R),Vitetta(E S)
状态:: 发布时间1988-11-21 , 更新时间 2016-10-19
期刊:: Proc Natl Acad Sci U S A
摘要:: Keyhole-limpet-hemocyanin-specific I-Ad-restricted T helper cells type 1 (TH1 cells) and type 2 (TH2 cells) were studied for their ability to physically conjugate to trinitrophenyl-specific antigen-binding B cells (TNP-ABCs). The same TNP-ABCs (which had already processed TNP-keyhole limpet hemocyanin) formed conjugates with one or the other T helper (TH) cell type, and conjugation was antigen-specific and major histocompatibility complex-restricted. The conjugation of a fixed number of one type of TH cell to the TNP-ABCs was inhibited by co-incubation with increasing numbers of cells of the other TH cell type. Thus, the vast majority of TNP-ABCs can conjugate to either type of TH cell. A similar pattern of inhibition of the conjugation of one TH cell type to the TNP-ABCs was seen when cells were co-incubated with increasing numbers of cells from an alloreactive T-cell clone. In all cases, conjugates contained only one T cell bound to one B cell, suggesting that interaction of an antigen-presenting B cell with one TH cell prevents the simultaneous binding of another TH cell.
语言:: eng
DOI:

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