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The HLA system, antigen processing and presentation
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Mechanisms of T cell recognition of alloantigen. The role of peptides
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Indirect T-cell allorecognition: Perspectives for peptide-based therapy in transplantation
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of special interest. A recent review of the role of immunodominant and cryptic allopeptides in activating indirect alloresponses and the implications for peptide based immunotherapy in transplantation
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Benichou G, Tam RC, Soares LR, Fedoseyeva EV. Indirect T-cell allorecognition: perspectives for peptide-based therapy in transplantation. of special interest Immunol Today. 18:1997;67-71 A recent review of the role of immunodominant and cryptic allopeptides in activating indirect alloresponses and the implications for peptide based immunotherapy in transplantation.
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Immunol Today
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Benichou, G.1
Tam, R.C.2
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5
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0029784452
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Mechanisms of indirect allorecognition in graft rejection: Class II MHC allopeptide-specific T cell clones transfer delayed-type hypersensitivity responses in vivo
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of special interest. Th1 lymphocyte clones, generated by in vivo priming of T lymphocytes via the indirect pathway, were capable of mediating antigen specific delayed-type hypersensitivity responses following adoptive transfer. This study sheds light on the mechanisms by which indirect allorecognition may mediate graft rejection
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Chen W, Murphy B, Waaga AM, Willet TA, Russell ME, Khoury SJ, Sayegh MH. Mechanisms of indirect allorecognition in graft rejection: class II MHC allopeptide-specific T cell clones transfer delayed-type hypersensitivity responses in vivo. of special interest Transplantation. 62:1996;705-710 Th1 lymphocyte clones, generated by in vivo priming of T lymphocytes via the indirect pathway, were capable of mediating antigen specific delayed-type hypersensitivity responses following adoptive transfer. This study sheds light on the mechanisms by which indirect allorecognition may mediate graft rejection.
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Chen, W.1
Murphy, B.2
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Sayegh, M.H.7
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6
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Predominant naturally processed peptides bound to HLA-DR1 are derived from MHC-related molecules and are heterogeneous in size
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Chicz, R.M.1
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8
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0029691229
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New approaches to specific immunomodulation in transplantation
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of special interest. Focusing on self HLA-DR restricted recognition of allogeneic HLA-DR molecules. Colovai and colleagues discuss how indirect alloresponses may involve only a limited number of TCRs and allopeptides. These findings have important implications for targeting and blocking indirect alloresponses via mechanisms such as the peptide blockade of the self HLA-DR molecule, high-zone tolerance (where T cell stimulation in the presence of very high concentrations of antigen may induce initial cell activation but then death) or TCR antagonism
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Colovai AI, Molajoni ER, Cortesini R, Suciu FN. New approaches to specific immunomodulation in transplantation. of special interest Int Rev Immunol. 13:1996;161-172 Focusing on self HLA-DR restricted recognition of allogeneic HLA-DR molecules. Colovai and colleagues discuss how indirect alloresponses may involve only a limited number of TCRs and allopeptides. These findings have important implications for targeting and blocking indirect alloresponses via mechanisms such as the peptide blockade of the self HLA-DR molecule, high-zone tolerance (where T cell stimulation in the presence of very high concentrations of antigen may induce initial cell activation but then death) or TCR antagonism.
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Int Rev Immunol
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Colovai, A.I.1
Molajoni, E.R.2
Cortesini, R.3
Suciu, F.N.4
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9
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0023607899
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HLA-A2 peptides can regulate cytolysis by human allogeneic T lymphocytes
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Clayberger C, Parham P, Rothbard J, Ludwig DS, Schoolnik GK, Krensky AM. HLA-A2 peptides can regulate cytolysis by human allogeneic T lymphocytes. Nature. 330:1987;763-765.
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Clayberger, C.1
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Inhibition of alloreactive cytotoxic T lymphocytes by peptides from the alpha 2 domain of HLA-A2
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Parham P, Clayberger C, Zorn SL, Ludwig DS, Schoolnik GK, Krensky AM. Inhibition of alloreactive cytotoxic T lymphocytes by peptides from the alpha 2 domain of HLA-A2. Nature. 325:1987;625-628.
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Parham, P.1
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Peptides corresponding to the CD8 and CD4 binding domains of HLA molecules block T lymphocyte immune responses in vitro
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Clayberger C, Lyu SC, DeKruyff R, Parham P, Krensky AM. Peptides corresponding to the CD8 and CD4 binding domains of HLA molecules block T lymphocyte immune responses in vitro. J Immunol. 153:1994;946-951.
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Clayberger, C.1
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Peptides corresponding to T-cell receptor-HLA contact regions inhibit class I-restricted immune responses
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Clayberger C, Lyu SC, Pouletty P, Krensky AM. Peptides corresponding to T-cell receptor-HLA contact regions inhibit class I-restricted immune responses. Transplant Proc. 25:1993;477-478.
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Clayberger, C.1
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14
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0028195007
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Induction of allograft tolerance in rats by an HLA class-I-derived peptide and cyclosporine A
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Nisco S, Vriens P, Hoyt G, Lyu SC, Farfan F, Pouletty P, Krensky AM, Clayberger C. Induction of allograft tolerance in rats by an HLA class-I-derived peptide and cyclosporine A. J Immunol. 152:1994;3786-3792.
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Nisco, S.1
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Krensky, A.M.7
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15
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Synthetic MHC class I peptide prolongs cardiac survival and attentuates transplant arterioscleosis in the Lewis Fischer 344 model of chronic allograft rejection
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Murphy B, Kim KS, Buelow R, Sayegh MH, Hancock WH. Synthetic MHC class I peptide prolongs cardiac survival and attentuates transplant arterioscleosis in the Lewis Fischer 344 model of chronic allograft rejection. Transplantation. 64:1997;14-19.
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Murphy, B.1
Kim, K.S.2
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Hancock, W.H.5
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0028936741
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Prolongation of allogeneic heart graft survival in rats by administration of a peptide (a.a. 75-84) from the alpha 1 helix of the first domain of HLA-B7 01
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Cuturi MC, Josien R, Douillard P, Pannetier C, Cantarovich D, Smit H, Menoret S, Pouletty P, Clayberger C, Soulillou JP. Prolongation of allogeneic heart graft survival in rats by administration of a peptide (a.a. 75-84) from the alpha 1 helix of the first domain of HLA-B7 01. Transplantation. 59:1995;661-669.
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Cuturi, M.C.1
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Pouletty, P.8
Clayberger, C.9
Soulillou, J.P.10
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17
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0029928399
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Immunosuppressive effects of an HLA class I-derived peptide in a rat cardiac allograft model
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Hanaway MJ, Geissler EK, Wang J, Fechner JJ, Buelow R, Knechtle SJ. Immunosuppressive effects of an HLA class I-derived peptide in a rat cardiac allograft model. Transplantation. 61:1996;1222-1228.
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Hanaway, M.J.1
Geissler, E.K.2
Wang, J.3
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18
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0028963321
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Prolongation of skin allograft survival in mice following administration of ALLOTRAP
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Buelow R, Veyron P, Clayberger C, Pouletty P, Touraine JL. Prolongation of skin allograft survival in mice following administration of ALLOTRAP. Transplantation. 59:1995;455-460.
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Transplantation
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Buelow, R.1
Veyron, P.2
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19
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0030046553
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Both L- And D-isomers of allotrap 2702 prolong cardiac allograft survival in mice
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Gao L, Woo J, Buelow R. Both L- and D-isomers of allotrap 2702 prolong cardiac allograft survival in mice. J Heart Lung Transplant. 15:1996;78-87.
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Gao, L.1
Woo, J.2
Buelow, R.3
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Treatment with an HLA-peptide and cyclosporine A prolongs rat small bowel allograft survival
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Willetts IE, Tam PK, Morris PJ, Dallman MJ. Treatment with an HLA-peptide and cyclosporine A prolongs rat small bowel allograft survival. J Pediatr Surg. 32:1997;469-472.
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0031002119
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Decreased cytotoxic activity of natural killer cells in kidney allograft recipients treated with human HLA-derived peptide
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of special interest. The first safety and pharmacokinetics study of the HLA-B27.75-84 peptide in human transplant recipients. The drug was well tolerated although there was a non-statistically significant increased incidence of rejection episodes and herpetic infections in peptide treated patients. Those patients treated with the highest does developed reduced NK cell cytotoxicity
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Giral M, Cuturi MC, Nguyen JM, Josien R, Dantal J, Floch R, Buelow R, Pouletty P, Soulillou JP. Decreased cytotoxic activity of natural killer cells in kidney allograft recipients treated with human HLA-derived peptide. of special interest Transplantation. 63:1997;1004-1011 The first safety and pharmacokinetics study of the HLA-B27.75-84 peptide in human transplant recipients. The drug was well tolerated although there was a non-statistically significant increased incidence of rejection episodes and herpetic infections in peptide treated patients. Those patients treated with the highest does developed reduced NK cell cytotoxicity.
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Transplantation
, vol.63
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Giral, M.1
Cuturi, M.C.2
Nguyen, J.M.3
Josien, R.4
Dantal, J.5
Floch, R.6
Buelow, R.7
Pouletty, P.8
Soulillou, J.P.9
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23
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0030026186
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HLA-derived peptides which inhibit T cell function bind to members of the heat-shock protein 70 family
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of outstanding interest. Using biotinylated forms of peptides, derived from the α 1 helix of the HLA-B7 and HLA-B27 molecules, and inverted peptide dimers, Nossner found that peptides inhibitory of T cell function in vitro bound to heat shock proteins (hsps) in T cell lysates. Binding correlated strongly with the immunoinhibitory activity, suggesting that the inhibitory peptides may work by interacting with hsps. This hypothesis has been challenged, however, by a later study [24].
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Nossner E, Goldberg JE, Naftzger C, Lyu SC, Clayberger C, Krensky AM. HLA-derived peptides which inhibit T cell function bind to members of the heat-shock protein 70 family. of outstanding interest J Exp Med. 183:1996;339-348 Using biotinylated forms of peptides, derived from the α 1 helix of the HLA-B7 and HLA-B27 molecules, and inverted peptide dimers, Nossner found that peptides inhibitory of T cell function in vitro bound to heat shock proteins (hsps) in T cell lysates. Binding correlated strongly with the immunoinhibitory activity, suggesting that the inhibitory peptides may work by interacting with hsps. This hypothesis has been challenged, however, by a later study [24].
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Nossner, E.1
Goldberg, J.E.2
Naftzger, C.3
Lyu, S.C.4
Clayberger, C.5
Krensky, A.M.6
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24
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0030780598
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Immunosuppression by D-isomers of HLA class I heavy chain (amino acid 75 to 84) derived peptides is independent of binding to HSC70
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in press
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Woo J, Iyer S, Cornejo MC, Gao L, Cuturi C, Soulillou JP, Buelow R. Immunosuppression by D-isomers of HLA class I heavy chain (amino acid 75 to 84) derived peptides is independent of binding to HSC70. Transplantation. 1997;. in press.
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Woo, J.1
Iyer, S.2
Cornejo, M.C.3
Gao, L.4
Cuturi, C.5
Soulillou, J.P.6
Buelow, R.7
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25
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Krensky AM, Clayberger C. HLA-derived peptides as novel immunosuppressives. Nephrol Dial Transplant. 12:1997;865-868.
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Krensky, A.M.1
Clayberger, C.2
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0029892777
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+ T lymphocytes in vitro and in vivo
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of outstanding interest. Peptides corresponding to the CD4 binding regions of murine MHC class II molecules modulated in vitro CD4-dependent immune responses against alloantigen and superantigen: low doses stimulated and high doses inhibited lymphocyte proliferation. Although antigen specific T lymphocyte responses in vivo were actually enhanced by the systemic administration of the peptides, targeting and disrupting CD4 - MHC class II interactions is a promising area of immunomodulatory therapy.
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+ T lymphocytes in vitro and in vivo. of outstanding interest J Immunol. 157:1996;87-100 Peptides corresponding to the CD4 binding regions of murine MHC class II molecules modulated in vitro CD4-dependent immune responses against alloantigen and superantigen: low doses stimulated and high doses inhibited lymphocyte proliferation. Although antigen specific T lymphocyte responses in vivo were actually enhanced by the systemic administration of the peptides, targeting and disrupting CD4 - MHC class II interactions is a promising area of immunomodulatory therapy.
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Shen, X.1
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Inhibition of the alloimmune response with synthetic nonpolymorphic class II MHC peptides
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Sayegh MH, Perico N, Imberti O, Hancock WW, Carpenter CB, Remuzzi G. Thymic recognition of class II major histocompatibility complex allopeptides induces donor-specific unresponsiveness to renal allografts. Transplantation. 56:1993;461-465.
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Differential effects of oral versus intrathymic administration of polymorphic major histocompatibility complex class II peptides on mononuclear and endothelial cell activation and cytokine expression during a delayed-type hypersensitivity response
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Oluwole SF, Chowdhury NC, Jin MX, Hardy MA. Induction of transplantation tolerance to rat cardiac allografts by intrathymic inoculation of allogeneic soluble peptides. Transplantation. 56:1993;1523-1527.
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Oluwole SF, Jin MX, Chowdhury NC, Ohajekwe OA. Effectiveness of intrathymic inoculation of soluble antigens in the induction of specific unresponsiveness to rat islet allografts without transient recipient immunosuppression. Transplantation. 58:1994;1077-1081.
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Chowdhury, N.C.1
Murphy, B.2
Sayegh, M.H.3
Jin, M.X.4
Roy, D.K.5
Hardy, M.A.6
Oluwole, S.F.7
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44
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0029805828
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Induction of transplantation tolerance by chimeric donor/recipient class I RT1.Aa molecules
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Ghobrial RR, Hamashima T, Wang ME, Wang M, Stepkowski SM, Kahan BD. Induction of transplantation tolerance by chimeric donor/recipient class I RT1.Aa molecules. Transplantation. 62:1996;1002-1010.
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(1996)
Transplantation
, vol.62
, pp. 1002-1010
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Ghobrial, R.R.1
Hamashima, T.2
Wang, M.E.3
Wang, M.4
Stepkowski, S.M.5
Kahan, B.D.6
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45
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0030927613
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Localization of cryptic tolerogenic epitopes in the alpha1-helical region of the RT1.Au alloantigen
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u. Possible mechanisms of action of allochimeric proteins are discussed
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u. Possible mechanisms of action of allochimeric proteins are discussed.
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Transplantation
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Wang, M.1
Stepkowski, S.M.2
Yu, J.3
Wang, M.4
Kahan, B.D.5
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46
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0030935714
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Reduction of alloantibody response to class I major histocompatibility complex by targeting synthetic allopeptides for presentation by B cells
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of special interest. An interesting mechanism of targeting and inactivating T cells specific for immunodominant peptides by presenting these peptides via resting (non costimulating) B cells. Although allograft survival was not prolonged, T helper cell assisted alloantibody production was reduced
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MacDonald CM, Bolton EM, Jaques BC, Walker KG, Bradley JA. Reduction of alloantibody response to class I major histocompatibility complex by targeting synthetic allopeptides for presentation by B cells. of special interest Transplantation. 63:1997;926-932 An interesting mechanism of targeting and inactivating T cells specific for immunodominant peptides by presenting these peptides via resting (non costimulating) B cells. Although allograft survival was not prolonged, T helper cell assisted alloantibody production was reduced.
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(1997)
Transplantation
, vol.63
, pp. 926-932
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MacDonald, C.M.1
Bolton, E.M.2
Jaques, B.C.3
Walker, K.G.4
Bradley, J.A.5
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47
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9544241307
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Indirect recognition of donor HLA-DR peptides in organ allograft rejection
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of outstanding interest. An important study demonstrating the role of indirect recognition in human cardiac allograft rejection. T cell reactivity to certain donor allopeptides was found to correlate with episodes of acute graft rejection. Of the 32 studied cardiac transplant recipients, 19 were mismatched for two HLA-DR antigens. In the majority of these patients, absence of acute graft rejection was associated with absence of indirect alloreactivity against immunodominant peptides derived from the mismatched donor HLA-DR molecules. In contrast, acute rejection episodes were usually associated with evidence of indirect alloreactivity (restricted by one recipient HLA-DR molecule) against an immunodominant peptide of only one donor HLA molecule. In patients with multiple rejection episodes, however, alloreactivity developed against the second donor HLA-DR molecule. This phenomenon of intermolecular spreading strongly suggests that the early modulation of indirect
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Liu Z, Colovai AI, Tugulea S, Reed EF, Fisher PE, Mancini D, Rose EA, Cortesini R, Michler RE, Suciu-Foca N. Indirect recognition of donor HLA-DR peptides in organ allograft rejection. of outstanding interest J Clin Invest. 98:1996;1150-1157 An important study demonstrating the role of indirect recognition in human cardiac allograft rejection. T cell reactivity to certain donor allopeptides was found to correlate with episodes of acute graft rejection. Of the 32 studied cardiac transplant recipients, 19 were mismatched for two HLA-DR antigens. In the majority of these patients, absence of acute graft rejection was associated with absence of indirect alloreactivity against immunodominant peptides derived from the mismatched donor HLA-DR molecules. In contrast, acute rejection episodes were usually associated with evidence of indirect alloreactivity (restricted by one recipient HLA-DR molecule) against an immunodominant peptide of only one donor HLA molecule. In patients with multiple rejection episodes, however, alloreactivity developed against the second donor HLA-DR molecule. This phenomenon of intermolecular spreading strongly suggests that the early modulation of indirect alloresponses will be much more effective in limiting graft rejection.
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(1996)
J Clin Invest
, vol.98
, pp. 1150-1157
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Liu, Z.1
Colovai, A.I.2
Tugulea, S.3
Reed, E.F.4
Fisher, P.E.5
Mancini, D.6
Rose, E.A.7
Cortesini, R.8
Michler, R.E.9
Suciu-Foca, N.10
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48
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0027157269
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Limited usage of T cell receptor V beta genes by allopeptide-specific T cells
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Liu Z, Sun YK, Xi YP, Hong B, Harris PE, Reed EF, Suciu FN. Limited usage of T cell receptor V beta genes by allopeptide-specific T cells. J Immunol. 150:1993;3180-3186.
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J Immunol
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Liu, Z.1
Sun, Y.K.2
Xi, Y.P.3
Hong, B.4
Harris, P.E.5
Reed, E.F.6
Suciu, F.N.7
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49
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0026562549
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Selective immunosuppression by administration of major histocompatibility complex (MHC) class II-binding peptides. I. Evidence for in vivo MHC blockade preventing T cell activation
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Guery JC, Sette A, Leighton J, Dragomir A, Adorini L. Selective immunosuppression by administration of major histocompatibility complex (MHC) class II-binding peptides. I. Evidence for in vivo MHC blockade preventing T cell activation. J Exp Med. 175:1992;1345-1352.
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J Exp Med
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, pp. 1345-1352
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Guery, J.C.1
Sette, A.2
Leighton, J.3
Dragomir, A.4
Adorini, L.5
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50
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0029560976
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Suppression of the indirect pathway of T cell reactivity by high doses of allopeptide
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Liu Z, Harris PE, Colovai AI, Reed EF, Maffei A, Suciu FN. Suppression of the indirect pathway of T cell reactivity by high doses of allopeptide. Autoimmunity. 21:1995;173-184.
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Autoimmunity
, vol.21
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Liu, Z.1
Harris, P.E.2
Colovai, A.I.3
Reed, E.F.4
Maffei, A.5
Suciu, F.N.6
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51
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0030639833
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Allopeptide-specific T cell reactivity altered by peptide analogs
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*0101 were tested for their ability to modulate T cell responses to the wild-type peptide antigen. Two of these analogues inhibited such responses by TCR antagonism; two others acted as TCR agonists but induced high zone tolerance at higher concentrations in vitro
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*0101 were tested for their ability to modulate T cell responses to the wild-type peptide antigen. Two of these analogues inhibited such responses by TCR antagonism; two others acted as TCR agonists but induced high zone tolerance at higher concentrations in vitro.
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(1997)
J Immunol
, vol.158
, pp. 48-54
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Colovai, A.I.1
Liu, Z.2
Harris, P.E.3
Cortesini, R.4
Suciu, F.N.5
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52
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0029948749
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Modulation of antigen presentation and class II expression by a class II-associated invariant chain peptide
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of outstanding interest. An important study of the immunological functions of the MHC class II associated invariant chain peptide (CLIP). CLIP plays an important role in the orderly traffic of newly synthesised MHC class II molecules within the APCs and in the correct 'loading' of the MHC class II molecule with peptide before transport of the MHC molecule - peptide complex to the cell surface. Incubation of APCs with CLIP in vitro or CLIP immunisation in vivo decreased the cell surface expression of MHC class II molecules. Antigen specific T cell responses were also reduced, presumably by inhibiting both the loading of antigenic peptides onto MHC class II molecules and the subsequent expression of the MHC molecule - peptide complexes on the cell surface. Inadequate presentation of antigen to T cells would then occur
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Zechel MA, Chaturvedi P, Lee CE, Rider BJ, Singh B. Modulation of antigen presentation and class II expression by a class II-associated invariant chain peptide. of outstanding interest J Immunol. 156:1996;4232-4239 An important study of the immunological functions of the MHC class II associated invariant chain peptide (CLIP). CLIP plays an important role in the orderly traffic of newly synthesised MHC class II molecules within the APCs and in the correct 'loading' of the MHC class II molecule with peptide before transport of the MHC molecule - peptide complex to the cell surface. Incubation of APCs with CLIP in vitro or CLIP immunisation in vivo decreased the cell surface expression of MHC class II molecules. Antigen specific T cell responses were also reduced, presumably by inhibiting both the loading of antigenic peptides onto MHC class II molecules and the subsequent expression of the MHC molecule - peptide complexes on the cell surface. Inadequate presentation of antigen to T cells would then occur.
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(1996)
J Immunol
, vol.156
, pp. 4232-4239
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Zechel, M.A.1
Chaturvedi, P.2
Lee, C.E.3
Rider, B.J.4
Singh, B.5
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53
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0028298846
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A rationally designed CD4 analogue inhibits experimental allergic encephalomyelitis
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Jameson BA, McDonnell JM, Marini JC, Korngold R. A rationally designed CD4 analogue inhibits experimental allergic encephalomyelitis. Nature. 368:1994;744-746.
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(1994)
Nature
, vol.368
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Jameson, B.A.1
McDonnell, J.M.2
Marini, J.C.3
Korngold, R.4
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54
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0029973961
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Inhibitory effect of a CD4-CDR3 peptide analog on graft-versus-host disease across a major histocompatibility complex-haploidentical barrier
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+ T cells alone, rather than unpurified T cells. Donor lymphocytes harvested from the thoracic duct exhibited a specific reduction in alloreactivity (as measured by the mixed lymphocyte reaction) to host splenocytes.
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+ T cells alone, rather than unpurified T cells. Donor lymphocytes harvested from the thoracic duct exhibited a specific reduction in alloreactivity (as measured by the mixed lymphocyte reaction) to host splenocytes.
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(1996)
Blood
, vol.88
, pp. 3038-3047
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Townsend, R.M.1
Briggs, C.2
Marini, J.C.3
Murphy, G.F.4
Korngold, R.5
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55
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0030903113
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A synthetic CD4-CDR3 peptide analog enhances bone marrow engraftment across major histocompatibility barriers
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of special interest. The rD-mPGPtide peptide improved allogeneic bone marrow engraftment (assessed by donor-host chimerism) in three different mouse strain combinations. Peptide treated mice in the haploidentical and MHC class II mismatched strain combinations demonstrated tolerance to both donor- and matched strain combinations demonstrated tolerance to both donor- and syngeneic host-type skin grafts but still rejected third party grafts
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Koch U, Korngold R. A synthetic CD4-CDR3 peptide analog enhances bone marrow engraftment across major histocompatibility barriers. of special interest Blood. 89:1997;2880-2890 The rD-mPGPtide peptide improved allogeneic bone marrow engraftment (assessed by donor-host chimerism) in three different mouse strain combinations. Peptide treated mice in the haploidentical and MHC class II mismatched strain combinations demonstrated tolerance to both donor- and matched strain combinations demonstrated tolerance to both donor- and syngeneic host-type skin grafts but still rejected third party grafts.
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(1997)
Blood
, vol.89
, pp. 2880-2890
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Koch, U.1
Korngold, R.2
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58
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0030978915
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Bioactive peptide design based on protein surface epitopes. A cyclic heptapeptide mimics CD4 domain 1 CC' loop.and inhibits CD4 biological function
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of outstanding interest. Computer analysis of CD4 domain 1 revealed a potential MHC class II molecule binding pocket, formed in part by a protruding CC' loop. Analogue peptides of this loop were tested for inhibition of the human CD4-MHC class II interaction. A small cyclic peptide was the most potent analogue in vitro and nuclear magnetic resonance spectroscopy showed that it closely mimicked the loop's structure. Modification of skin allograft rejection and experimental allergic encephalomyelitis by this cyclic peptide was demonstrated in murine models. Thus, identification and disruption of small peptide regions critical for protein - protein interactions are useful tools for designing new immunomodulatory agents
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Satoh T, Aramini JM, Li S, Friedman TM, Gao J, Edling AE, Townsend R, Koch U, Choski S, Germann MW, et al. Bioactive peptide design based on protein surface epitopes. A cyclic heptapeptide mimics CD4 domain 1 CC' loop.and inhibits CD4 biological function. of outstanding interest J Biol Chem. 272:1997;12175-12180 Computer analysis of CD4 domain 1 revealed a potential MHC class II molecule binding pocket, formed in part by a protruding CC' loop. Analogue peptides of this loop were tested for inhibition of the human CD4-MHC class II interaction. A small cyclic peptide was the most potent analogue in vitro and nuclear magnetic resonance spectroscopy showed that it closely mimicked the loop's structure. Modification of skin allograft rejection and experimental allergic encephalomyelitis by this cyclic peptide was demonstrated in murine models. Thus, identification and disruption of small peptide regions critical for protein - protein interactions are useful tools for designing new immunomodulatory agents.
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(1997)
J Biol Chem
, vol.272
, pp. 12175-12180
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-
Satoh, T.1
Aramini, J.M.2
Li, S.3
Friedman, T.M.4
Gao, J.5
Edling, A.E.6
Townsend, R.7
Koch, U.8
Choski, S.9
Germann, M.W.10
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59
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12644256642
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A computer screening approach to immunoglobulin superfamily structures and interactions: Discovery of small non-peptidic CD4 inhibitors as novel immunotherapeutics
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of outstanding interest. A computer screening method was used to identify nonpeptide organic ligands of the CD4 domain binding pocket discussed above [58]. Three such compounds inhibited T cell proliferation in the human mixed lymphocyte reaction assay and demonstrated immunoinhibitory effects in experimental allergic encephalomyelitis and skin allograft models. The implications of this computer screening approach are discussed.
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Li S, Gao J, Satoh T, Friedman TM, Edling AE, Koch U, Choksi S, Han X, Korngold R, Huang Z. A computer screening approach to immunoglobulin superfamily structures and interactions: discovery of small non-peptidic CD4 inhibitors as novel immunotherapeutics. of outstanding interest Proc Natl Acad Sci USA. 94:1997;73-78 A computer screening method was used to identify nonpeptide organic ligands of the CD4 domain binding pocket discussed above [58]. Three such compounds inhibited T cell proliferation in the human mixed lymphocyte reaction assay and demonstrated immunoinhibitory effects in experimental allergic encephalomyelitis and skin allograft models. The implications of this computer screening approach are discussed.
-
(1997)
Proc Natl Acad Sci USA
, vol.94
, pp. 73-78
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-
Li, S.1
Gao, J.2
Satoh, T.3
Friedman, T.M.4
Edling, A.E.5
Koch, U.6
Choksi, S.7
Han, X.8
Korngold, R.9
Huang, Z.10
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