Prevention of chronic rejection in murine cardiac allografts

A comparison of chimerism- and nonchimerism-inducing costimulation blockade-based tolerance induction regimens

Nozomu Shirasugi, Andrew B. Adams, Megan M. Durham, Aron Lukacher, Huaying Xu, Phyllis Rees, Shannon R. Cowan, Matthew A. Williams, Thomas C. Pearson, Christian P. Larsen

Research output: Contribution to journalArticle

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Abstract

We have previously described a nonirradiation-based regimen combining costimulation blockade, busulfan, and donor bone marrow cells that promotes stable, high level chimerism, deletion of donor-reactive T cells, and indefinite survival of skin allografts in mice. The purpose of the current study is to determine the efficacy of this tolerance regimen in preventing acute and chronic rejection in a vascularized heart graft model and to compare this regimen with other putative tolerance protocols. Mice receiving costimulation blockade (CTLA4-Ig and anti-CD40 ligand) alone or in combination with donor cells enjoyed markedly prolonged heart graft survival and initially preserved histological structure. However, tolerance was not achieved, as evidenced by the eventual onset of chronic rejection characterized by obliterative vasculopathy and the rejection of secondary skin grafts. In contrast, following treatment with costimulation blockade, busulfan, and bone marrow, heart grafts survived indefinitely without detectable signs of chronic rejection or structural damage, even 100 days after placement of a secondary donor skin graft. We detected multilineage chimerism in peripheral blood, spleen, lymph nodes, and thymus, and peripheral deletion of donor-reactive cells was complete by day 90. These findings indicate that only the CD40/CD28 blockade chimerism induction regimen prevents both acute and chronic rejection of vascularized organ transplants. Further testing of these strategies in a preclinical large animal model is warranted.

Original languageEnglish (US)
Pages (from-to)2677-2684
Number of pages8
JournalJournal of Immunology
Volume169
Issue number5
DOIs
StatePublished - Sep 1 2002

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Chimerism
Allografts
Transplants
Busulfan
Skin
CD40 Ligand
Graft Survival
Bone Marrow Cells
Thymus Gland
Cell Survival
Spleen
Animal Models
Lymph Nodes
Bone Marrow
T-Lymphocytes

All Science Journal Classification (ASJC) codes

  • Immunology

Cite this

Shirasugi, Nozomu ; Adams, Andrew B. ; Durham, Megan M. ; Lukacher, Aron ; Xu, Huaying ; Rees, Phyllis ; Cowan, Shannon R. ; Williams, Matthew A. ; Pearson, Thomas C. ; Larsen, Christian P. / Prevention of chronic rejection in murine cardiac allografts : A comparison of chimerism- and nonchimerism-inducing costimulation blockade-based tolerance induction regimens. In: Journal of Immunology. 2002 ; Vol. 169, No. 5. pp. 2677-2684.
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Prevention of chronic rejection in murine cardiac allografts : A comparison of chimerism- and nonchimerism-inducing costimulation blockade-based tolerance induction regimens. / Shirasugi, Nozomu; Adams, Andrew B.; Durham, Megan M.; Lukacher, Aron; Xu, Huaying; Rees, Phyllis; Cowan, Shannon R.; Williams, Matthew A.; Pearson, Thomas C.; Larsen, Christian P.

In: Journal of Immunology, Vol. 169, No. 5, 01.09.2002, p. 2677-2684.

Research output: Contribution to journalArticle

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