|
|
||||||||

T Cells and NK Cells Inhibit the Engraftment of Xenogeneic Rat Bone Marrow Cells and the Induction of Xenograft Tolerance in Mice1
Bone Marrow Transplantation Section, Transplantation Biology Research Center, Surgical Service, Massachusetts General Hospital/Harvard Medical School, Boston, MA 02129
In murine allogeneic bone marrow transplantation recipients,
treatment of the hosts with a nonmyeloablative regimen, including
depleting anti-CD4 and anti-CD8 mAbs, allows establishment of
long-term mixed chimerism and donor-specific tolerance. However, in the
xenogeneic rat-to-mouse combination, additional anti-Thy1.2 and
anti-NK1.1 mAbs are required. We have now attempted to identify the
xenoresistant mouse cell populations that are targeted by
anti-NK1.1 and anti-Thy1.2 mAbs. C57BL/6 (B6) wild-type, B6
TCR
-/-, and B6 TCR
-/- mice received
anti-CD4 and anti-CD8 mAbs, followed by 3 Gy of whole body
irradiation, 7 Gy of thymic irradiation, and transplantation of T
cell-depleted rat bone marrow cells. Anti-NK1.1 and anti-Thy1.2
mAbs were additionally administered to some groups. Increased rat
chimerism was observed in TCR
-/- mice treated
with anti-CD4, anti-CD8, and anti-NK1.1 mAbs compared
with similarly treated TCR
-/- mice. In
TCR
-/- mice, but not in TCR
-/- mice,
donor chimerism was increased by treatment with anti-Thy1.2 mAb,
indicating that
CD4-CD8-TCR
+Thy1.2+NK1.1-
cells (
T cells) are involved in the rejection of rat marrow. In
addition, chimerism was enhanced in both TCR
-/- and
TCR
-/- mice treated with anti-CD4, anti-CD8,
and anti-Thy1.2 mAbs by the addition of anti-NK1.1 mAb to the
conditioning regimen. Donor-specific skin graft prolongation was
enhanced by anti-Thy1.2 and anti-NK1.1 mAbs in
TCR
-/- mice. Therefore, in addition to CD4 and CD8 T
cells, 
T cells and NK cells play a role in resisting engraftment
of rat marrow and the induction of xenograft tolerance in
mice.
This article has been cited by other articles:
![]() |
S. Miyagawa, T. Kubo, K. Matsunami, T. Kusama, K. Beppu, H. Nozaki, T. Moritan, C. Ahn, J. Y. Kim, D. Fukuta, et al. Delta-Short Consensus Repeat 4-Decay Accelerating Factor (DAF: CD55) Inhibits Complement-Mediated Cytolysis but Not NK Cell-Mediated Cytolysis J. Immunol., September 15, 2004; 173(6): 3945 - 3952. [Abstract] [Full Text] [PDF] |
||||
![]() |
K. J. Lavender, B. J. Ma, E. T. Silver, and K. P. Kane The Rat RT1-A1c MHC Molecule Is a Xenogeneic Ligand Recognized by the Mouse Activating Ly-49W and Inhibitory Ly-49G Receptors J. Immunol., March 15, 2004; 172(6): 3518 - 3526. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. Zoller Tumor Vaccination after Allogeneic Bone Marrow Cell Reconstitution of the Nonmyeloablatively Conditioned Tumor-Bearing Murine Host J. Immunol., December 15, 2003; 171(12): 6941 - 6953. [Abstract] [Full Text] [PDF] |
||||
![]() |
C. Arber, A. BitMansour, T. E. Sparer, J. P. Higgins, E. S. Mocarski, I. L. Weissman, J. A. Shizuru, and J. M. Y. Brown Common lymphoid progenitors rapidly engraft and protect against lethal murine cytomegalovirus infection after hematopoietic stem cell transplantation Blood, July 15, 2003; 102(2): 421 - 428. [Abstract] [Full Text] [PDF] |
||||
![]() |
Y. Zhao, H. Ohdan, J. O. Manilay, and M. Sykes NK Cell Tolerance in Mixed Allogeneic Chimeras J. Immunol., June 1, 2003; 170(11): 5398 - 5405. [Abstract] [Full Text] [PDF] |
||||
![]() |
S. Hummel, D. Wilms, M. Vitacolonna, and M. Zoller Donor T cell and host NK depletion improve the therapeutic efficacy of allogeneic bone marrow cell reconstitution in the nonmyeloablatively conditioned tumor-bearing host J. Leukoc. Biol., November 1, 2002; 72(5): 898 - 912. [Abstract] [Full Text] [PDF] |
||||
![]() |
A. Sharland, A. Patel, J. H. Lee, A. E. Cestra, S. Saidman, and G. L. Waneck Genetically Modified HLA Class I Molecules Able to Inhibit Human NK Cells Without Provoking Alloreactive CD8+ CTLs J. Immunol., April 1, 2002; 168(7): 3266 - 3274. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. Abe, J. Cheng, J. Qi, R. M. Glaser, A. D. Thall, M. Sykes, and Y.-G. Yang Elimination of Porcine Hemopoietic Cells by Macrophages in Mice J. Immunol., January 15, 2002; 168(2): 621 - 628. [Abstract] [Full Text] [PDF] |
||||
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |