The Induction of Skin Xenograft Tolerance in Rat-to Mouse Combination could be Affected by DFR Mediating Cells and Antibodies against Rat Bone Marrow Cells as well as NK Cells in the Cyclophosphamide-Induced Tolerance System

Yousuke Nishimura, Masatoshi Eto, Takeshi Maeda, Kenji Hiromatsu, Kenichi Nomoto, Young Yun Kong, Kikuo Nomoto

Research output: Contribution to journalArticle

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Abstract

We investigated whether the prolongation of skin xenograft survival was obtained by a tolerance-inducing method using cyclophosphamide (CY), by which long-lasting skin allograft tolerance could be induced. The long-lasting skin allograft survival could be obtained in the recipient C3H/HeN (C3H) mice which were given 100 [μg of anti-CD4 mAb on day -3, 1 x 108 spleen cells (SC) plus 3 x 107 bone marrow cells (BMC) derived from C57BL/6 (B6) mice on day -2, 200 mg/kg CY on day 0, and which were grafted with allogeneic B6 skin on day 14. When the C3H mice were treated with anti-CD4 mAb, 1 x 108 SC plus 5 x 107 BMC derived from F344 rat and CY, the F344 skin grafts survived slightlv longer (about 15 days) than those in untreated recipients (about 8.4 days). Such a prolongation of skin xenograft survival was considered donor-specific because rejection of 3rd party skin grafts from BN rats occurred significantly earlier than that of F344 skin grafts. In the recipient C3H mice treated with anti-CD4 mAb, F344 SC plus BMC and CY, mixed chimerism in the periphery was detected for a few days after CY administration, although intrathymic chimerism was not detected throughout this study. In these recipient C3H mice, cytotoxic T lymphocytes (CTL) against F344 antigens were completely abrogated though the delayed footpad reaction (DFR) remained at a low but significant level. Moreover, though antibody (Ab) activity against F344 SC was completely abrogated, neither Ab activity against F344 BMC, which seemed to have a background common to natural Ab activity, nor NK activity were abrogated by this treatment. These results suggested that DFR mediating cells directly mediated skin xenograft rejection in the recipient mice treated with anti-CD4 mAb, F344 cells, and CY. Such cells may interfere with establishment of mixed chimerism and longlasting skin xenograft tolerance, presumably in cooperation with CY-resistant Ab activity and NK cells.

Original languageEnglish
Pages (from-to)420-438
Number of pages19
JournalImmunobiology
Volume193
Issue number5
DOIs
Publication statusPublished - Jan 1 1995

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Heterografts
Natural Killer Cells
Bone Marrow Cells
Cyclophosphamide
Skin
Antibodies
Inbred C3H Mouse
Chimerism
Spleen
Transplants
Inbred BN Rats
Transplantation Tolerance
Inbred F344 Rats
Cytotoxic T-Lymphocytes
Allografts
Antigens

All Science Journal Classification (ASJC) codes

  • Immunology and Allergy
  • Immunology
  • Hematology

Cite this

The Induction of Skin Xenograft Tolerance in Rat-to Mouse Combination could be Affected by DFR Mediating Cells and Antibodies against Rat Bone Marrow Cells as well as NK Cells in the Cyclophosphamide-Induced Tolerance System. / Nishimura, Yousuke; Eto, Masatoshi; Maeda, Takeshi; Hiromatsu, Kenji; Nomoto, Kenichi; Kong, Young Yun; Nomoto, Kikuo.

In: Immunobiology, Vol. 193, No. 5, 01.01.1995, p. 420-438.

Research output: Contribution to journalArticle

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abstract = "We investigated whether the prolongation of skin xenograft survival was obtained by a tolerance-inducing method using cyclophosphamide (CY), by which long-lasting skin allograft tolerance could be induced. The long-lasting skin allograft survival could be obtained in the recipient C3H/HeN (C3H) mice which were given 100 [μg of anti-CD4 mAb on day -3, 1 x 108 spleen cells (SC) plus 3 x 107 bone marrow cells (BMC) derived from C57BL/6 (B6) mice on day -2, 200 mg/kg CY on day 0, and which were grafted with allogeneic B6 skin on day 14. When the C3H mice were treated with anti-CD4 mAb, 1 x 108 SC plus 5 x 107 BMC derived from F344 rat and CY, the F344 skin grafts survived slightlv longer (about 15 days) than those in untreated recipients (about 8.4 days). Such a prolongation of skin xenograft survival was considered donor-specific because rejection of 3rd party skin grafts from BN rats occurred significantly earlier than that of F344 skin grafts. In the recipient C3H mice treated with anti-CD4 mAb, F344 SC plus BMC and CY, mixed chimerism in the periphery was detected for a few days after CY administration, although intrathymic chimerism was not detected throughout this study. In these recipient C3H mice, cytotoxic T lymphocytes (CTL) against F344 antigens were completely abrogated though the delayed footpad reaction (DFR) remained at a low but significant level. Moreover, though antibody (Ab) activity against F344 SC was completely abrogated, neither Ab activity against F344 BMC, which seemed to have a background common to natural Ab activity, nor NK activity were abrogated by this treatment. These results suggested that DFR mediating cells directly mediated skin xenograft rejection in the recipient mice treated with anti-CD4 mAb, F344 cells, and CY. Such cells may interfere with establishment of mixed chimerism and longlasting skin xenograft tolerance, presumably in cooperation with CY-resistant Ab activity and NK cells.",
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