TY - JOUR
T1 - Induction of specific tolerance by hepatic double-negative cd4-8-αβ t cells of mice immunized with allogeneic cells via the portal vein in vitro
AU - Koyamada, Nozomi
AU - Ohteki, Toshiaki
AU - Abo, Toru
AU - Fukumori, Tatsuya
AU - Ohkouchi, Nobuhiro
AU - Satomi, Susumu
AU - Taguchi, Yoshio
AU - Kusumi, Akinori
AU - Mori, Shozo
AU - Kumagai, Katsuo
PY - 1993/6
Y1 - 1993/6
N2 - We immunized AKR/n (H-2k) spleen cells in BALB/c (H-2d) mice via the portal vein (pv) and investigated the role of hepatic mononuclear cells (MNC) in the induction of alloantigen-specific immune tolerance. MNC in the liver and spleen of pv-administered mice were demonstrated to abrogate the responses to AKR/n alloantigens in allogeneic MLR. On the contrary, MNC in the liver and spleen of mice administered subcutaneously with the same antigens showed greater responses than those of control mice. The tolerance induced by pv administration was alloantigen-specific and appeared earlier in hepatic MNC than in splenic MNC. Furthermore, hepatic MNC of pv-administered mice had a suppressive effect when these cells were added to allogeneic MLR, in which mitomycin C (MMC)-treated AKR/n splenic MNC were used as stimulator and control BALB/c splenic MNC were used as responder. Splenic MNC of pv-administered mice and hepatic MNC of control mice did not show such suppressive effects. Such suppression was alloantigen-specific, since no suppression was induced when hepatic MNC of pv-administered mice were added to a system using MMC-treated C57BL/6 (H-2b) splenic MNC. The alloantigen-specific suppression induced by hepatic MNC was abrogated by a depletion of TcR-αβ+ cells but not of CD4+, CD8+, nor B220+ cells from hepatic MNC. These results suggested that alloantigen-specific suppressor cells appeared predominantly in the hepatic MNC of pv-administered mice and displayed the phenotype of TcR-αβ+CD4-8- double-negative T cells, although alloantigen-specific tolerance was induced in both hepatic and splenic MNC.
AB - We immunized AKR/n (H-2k) spleen cells in BALB/c (H-2d) mice via the portal vein (pv) and investigated the role of hepatic mononuclear cells (MNC) in the induction of alloantigen-specific immune tolerance. MNC in the liver and spleen of pv-administered mice were demonstrated to abrogate the responses to AKR/n alloantigens in allogeneic MLR. On the contrary, MNC in the liver and spleen of mice administered subcutaneously with the same antigens showed greater responses than those of control mice. The tolerance induced by pv administration was alloantigen-specific and appeared earlier in hepatic MNC than in splenic MNC. Furthermore, hepatic MNC of pv-administered mice had a suppressive effect when these cells were added to allogeneic MLR, in which mitomycin C (MMC)-treated AKR/n splenic MNC were used as stimulator and control BALB/c splenic MNC were used as responder. Splenic MNC of pv-administered mice and hepatic MNC of control mice did not show such suppressive effects. Such suppression was alloantigen-specific, since no suppression was induced when hepatic MNC of pv-administered mice were added to a system using MMC-treated C57BL/6 (H-2b) splenic MNC. The alloantigen-specific suppression induced by hepatic MNC was abrogated by a depletion of TcR-αβ+ cells but not of CD4+, CD8+, nor B220+ cells from hepatic MNC. These results suggested that alloantigen-specific suppressor cells appeared predominantly in the hepatic MNC of pv-administered mice and displayed the phenotype of TcR-αβ+CD4-8- double-negative T cells, although alloantigen-specific tolerance was induced in both hepatic and splenic MNC.
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U2 - 10.1006/cimm.1993.1140
DO - 10.1006/cimm.1993.1140
M3 - Article
C2 - 7685658
AN - SCOPUS:0027263021
VL - 149
SP - 107
EP - 116
JO - Cellular Immunology
JF - Cellular Immunology
SN - 0008-8749
IS - 1
ER -