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Jurcevic S, Chandler P, Sacks SH, Simpson E. Rapid rejection of HLA-A2 transgenic skin graft due to indirect allorecognition. Transplantation 2001; 72:994-7. [PMID: 11579290 DOI: 10.1097/00007890-200109270-00003] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND At present, it is not clear whether xenogeneic MHC molecules are recognized by T cells directly or indirectly through self-MHC-restricted presentation in a transplantation setting. METHODS We have transplanted skin from HLA-A2 transgenic (B6.A2) to nontransgenic C57BL/6 (B6) mice and investigated the subsequent mouse T-cell responses to HLA molecules, in vivo and in vitro. RESULTS Skin transplanted from transgenic B6.A2 to B6 mice was rejected rapidly, in 12-16 days. Although naive B6 mice did not respond to B6.A2 splenocytes in vitro, spleen cells from mice that underwent transplantation showed strong proliferative responses. An anti-B6.A2 T-cell line from mice that underwent transplantation made proliferative responses to B6.A2 splenocytes but did not recognize HLA-A2 on human cells or transfected allogeneic mouse cells. The indirect, self-H-2-restricted recognition of HLA-A2 implied by this was confirmed by the finding that lysates of HLA-A2-positive, but not HLA-A2-negative, human B cells were stimulatory when pulsed onto syngeneic antigen-presenting cells and by inhibition of anti-B6.A2 proliferation with both anti-mouse MHC class I and class II antibodies. CONCLUSION Our results suggest that indirect recognition of xenogeneic MHC antigen plays a predominant role in graft rejection.
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Affiliation(s)
- S Jurcevic
- Department of Nephrology & Transplantation, King's College, Guy's, King's and St. Thomas' Medical School, Guy's Hospital, London SE1 9RT, UK.
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Martinozzi S, Pacasova R, Boulouis HJ, Ulbrecht M, Weiss EH, Sigaux F, Pla M. Cutting Edge: Requirement of Class I Signal Sequence-Derived Peptides for HLA-E Recognition by a Mouse Cytotoxic T Cell Clone. THE JOURNAL OF IMMUNOLOGY 1999. [DOI: 10.4049/jimmunol.162.10.5662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Abstract
The human nonclassical MHC class I molecule HLA-E has recently been shown to act as a major ligand for NK cell inhibitory receptors. Using HLA-E-expressing transgenic mice, we produced a cytotoxic T cell clone that specifically recognizes the HLA-E molecule. We report here that this T cell clone lyses HLA-E-transfected RMA-S target cells sensitized with synthetic class I signal sequence nonamers. Moreover, this T cell clone lyses human EBV-infected B lymphocytes, PHA blasts, and PBL, formally demonstrating the surface expression of HLA-E/class I signal-derived peptide complex on human cells. Furthermore, these data show that HLA-E complexed with class I signal sequence-derived peptides is not only a ligand for NK cell inhibitory receptors, but can also trigger cytotoxic T cells (CTL).
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Affiliation(s)
- Silvia Martinozzi
- * Mouse Immunogenetics, Institut National de la Santé et de la Recherche Médicale, Unite 462, Institute of Hematology, Hôpital Saint-Louis, Paris, France
| | - Rita Pacasova
- * Mouse Immunogenetics, Institut National de la Santé et de la Recherche Médicale, Unite 462, Institute of Hematology, Hôpital Saint-Louis, Paris, France
| | - Henri-Jean Boulouis
- * Mouse Immunogenetics, Institut National de la Santé et de la Recherche Médicale, Unite 462, Institute of Hematology, Hôpital Saint-Louis, Paris, France
| | - Matthias Ulbrecht
- † Institut für Anthropologie und Humangenetik, Ludwig Maximilians-Universität, Munich, Germany
| | - Elisabeth H. Weiss
- † Institut für Anthropologie und Humangenetik, Ludwig Maximilians-Universität, Munich, Germany
| | - François Sigaux
- * Mouse Immunogenetics, Institut National de la Santé et de la Recherche Médicale, Unite 462, Institute of Hematology, Hôpital Saint-Louis, Paris, France
| | - Marika Pla
- * Mouse Immunogenetics, Institut National de la Santé et de la Recherche Médicale, Unite 462, Institute of Hematology, Hôpital Saint-Louis, Paris, France
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Pacasova R, Martinozzi S, Boulouis HJ, Ulbrecht M, Vieville JC, Sigaux F, Weiss EH, Pla M. Cell-Surface Expression and Alloantigenic Function of a Human Nonclassical Class I Molecule (HLA-E) in Transgenic Mice. THE JOURNAL OF IMMUNOLOGY 1999. [DOI: 10.4049/jimmunol.162.9.5190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Abstract
We have introduced the gene (E*01033) encoding the heavy chain of the human nonclassical MHC class I Ag, HLA-E, into the mouse genome. Two founder mice carry a 21-kb fragment, the others bear an 8-kb fragment. Each of the founder mice was mated to mice of an already established C57BL/10 transgenic line expressing human β2-microglobulin (β2m). Cell surface HLA-E was detected on lymph node cells by flow cytometry only in the presence of endogenous human β2m. However, HLA-E-reactive mouse CTL (H-2-unrestricted) lysed efficiently the target cells originating from HLA-E transgenic mice without human β2m, showing that the HLA-E protein can be transported to the cell surface in the absence of human β2m, presumably by association with murine β2m. Rejection of skin grafts from HLA-E transgenic mice demonstrates that HLA-E behaves as a transplantation Ag in mice. HLA-E transgenic spleen cells are effective in stimulating an allogeneic CTL response in normal and human classical class I (HLA-B27) transgenic mice. Furthermore, results from split-well analysis indicate that the majority of the primary in vivo-induced CTL recognizes HLA-E as an intact molecule (H-2-unrestricted recognition) and not as an HLA-E-derived peptide presented by a mouse MHC molecule, although a small fraction (ranging from 4 to 21%) of the primary in vivo-induced CTL is able to recognize HLA-E in an H-2-restricted manner. Based on these observations, we conclude that HLA-E exhibits alloantigenic properties that are indistinguishable from classical HLA class I molecules when expressed in transgenic mice.
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Affiliation(s)
- Rita Pacasova
- *Mouse Immunogenetics, U462, Institut National de la Santé et de la Recherche Médicale, Institute of Hematology, Saint-Louis Hospital, Paris, France; and
| | - Silvia Martinozzi
- †Institut für Anthropologie und Humangenetik, Ludwig-Maximilians-Universität, Munich, Germany
| | - Henri-Jean Boulouis
- *Mouse Immunogenetics, U462, Institut National de la Santé et de la Recherche Médicale, Institute of Hematology, Saint-Louis Hospital, Paris, France; and
| | - Matthias Ulbrecht
- †Institut für Anthropologie und Humangenetik, Ludwig-Maximilians-Universität, Munich, Germany
| | - Jean-Claude Vieville
- *Mouse Immunogenetics, U462, Institut National de la Santé et de la Recherche Médicale, Institute of Hematology, Saint-Louis Hospital, Paris, France; and
| | - François Sigaux
- *Mouse Immunogenetics, U462, Institut National de la Santé et de la Recherche Médicale, Institute of Hematology, Saint-Louis Hospital, Paris, France; and
| | - Elisabeth H. Weiss
- †Institut für Anthropologie und Humangenetik, Ludwig-Maximilians-Universität, Munich, Germany
| | - Marika Pla
- *Mouse Immunogenetics, U462, Institut National de la Santé et de la Recherche Médicale, Institute of Hematology, Saint-Louis Hospital, Paris, France; and
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Faulkner L, Borysiewicz LK, Man S. The use of human leucocyte antigen class I transgenic mice to investigate human immune function. J Immunol Methods 1998; 221:1-16. [PMID: 9894893 DOI: 10.1016/s0022-1759(98)00162-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
HLA class I transgenic mice are a powerful research tool which have been used as models for human immune responses. This review describes the generation of the different HLA class I transgenic mice, the techniques used to improve expression of the transgene and use of the transgene product in immune responses. It also illustrates how HLA class I transgenic mice have provided insights into the nature of the allogeneic and xenogeneic response, the generation of CTL responses, the development of autoimmune diseases, and their use for the generation of anti-HLA class I antibodies. Despite these advances, the use of available HLA class I transgenic mice as models for human disease and immune responses has been limited. The development of new transgenic strains incorporating multiple human transgenes may allow the potential of HLA class I transgenic mice to be realised.
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Affiliation(s)
- L Faulkner
- Department of Medicine, University of Wales College of Medicine, Heath Park, Cardiff, UK.
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Noun G, Reboul M, Abastado JP, Kourilsky P, Sigaux F, Pla M. Strong Alloantigenicity of the α-Helices Residues of the MHC Class I Molecule. THE JOURNAL OF IMMUNOLOGY 1998. [DOI: 10.4049/jimmunol.161.1.148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Abstract
To evaluate the role of single residues of a MHC class I molecule in the induction of a primary allogeneic response, we have tested the ability of various point mutants (of the α-helices or β-sheet of the α1 and α2 domains) of the Kd molecule to induce a primary cytotoxic T cell response in mice carrying the wild-type molecule. For that, we have used an in vivo model in which cells expressing mutant molecules were injected into the hind footpads of mice carrying wild-type Kd, and the recipient graft-draining popliteal lymph nodes were tested for the presence of alloreactive CTL. Under these experimental conditions, only 7 of the 25 mutant Kd molecules induced a primary allogeneic response. All of these mutations (positions 62, 65, 69, 72, 155, 163, 166) concern residues of the α-helices, demonstrating that very small variances from self in a class I molecule, located outside the peptide-binding groove, can be antigenic. To determine the peptide requirements for the generation of a primary allogeneic response, we have analyzed the repertoire of peptides selected by individual mutant molecules shown to be able or unable to induce a CTL response. No correlation was observed between the peptidic make-up presented by a given mutant and its capacity to induce a primary allogeneic response. On the whole, our data point to the alloantigenicity of potentially TCR-contacting surface residues of the MHC class I molecules.
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Affiliation(s)
- Ghada Noun
- *Mouse Immunogenetics, U462, Institut National de la Santé et de la Recherche Médicale, Institute of Hematology, Paris, France; and
| | - Murielle Reboul
- *Mouse Immunogenetics, U462, Institut National de la Santé et de la Recherche Médicale, Institute of Hematology, Paris, France; and
| | - Jean-Pierre Abastado
- †U277, Institut National de la Santé et de la Recherche Médicale, Pasteur Institute, Paris, France
| | - Philippe Kourilsky
- †U277, Institut National de la Santé et de la Recherche Médicale, Pasteur Institute, Paris, France
| | - François Sigaux
- *Mouse Immunogenetics, U462, Institut National de la Santé et de la Recherche Médicale, Institute of Hematology, Paris, France; and
| | - Marika Pla
- *Mouse Immunogenetics, U462, Institut National de la Santé et de la Recherche Médicale, Institute of Hematology, Paris, France; and
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