Journal of Experimental Medicine, Vol 147, 788-799, Copyright © 1978 by Rockefeller University Press
Genetic restrictions for the induction of suppressor T cells by hapten- modified lymphoid cells in tolerance to 1-fluoro-2,4-dinitrobenzene contact sensitivity. Role of the H-2D region of the major histocompatibility complex
SD Miller, MS Sy and HN Claman
Genetic restrictions governing the induction and expression of suppressor T
cells (Ts) in tolerance to 1-fluoro-2,4-dinitrogenzene (DNFB) contract
sensitivity were studied. Tolerance was induced by using 2,4-dinitrophenyl
(DNP)-modified lymphoid cells (DNP-LC) as tolerogen. Two kinds of Ts were
found-those produced by DNP-LC syngeneic to the donor of the Ts (syninduced
Ts), and those produced by DNP-LC allogeneic to the donor of Ts
(alloinduced Ts). Studies employing congenic resistant mouse strains
indicated that recognition of DNP-modified-major histocompatibility region
determinants on the tolerogenic DNP-LC was essential for the induction of
both types of Ts. Non-H-2 genetic background was irrelevant to Ts
induction. Mapping studies indicated that induction of both syninduced and
alloinduced Ts was associated with recognition of DNP-modified-MHC region
determinants which map to the right of the H-2G region (i.e., H-2D gene
products). Tolerization of donor mice with DNP-LC which were H-2D region
compatible, but not with H-2K or I region compatible DNP-LC, was both
sufficient and required for the induction of hapten-specific syninduced Ts.
Tolerization of donor mice with DNP-LC which were incompatible only at the
H-2D region was sufficient for the induction of alloinduced Ts. These Ts
were capable of suppressing recipient mice only if the recipients shared
the H-2D region with the strain providing the DNP-LC tolerogen, and were
not capable of suppressing recipients sharing all but the H-2D region with
the tolerogen.