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Anti-lymphocyte function-associated antigen-1 monoclonal antibody inhibits CD40 ligand-independent immune responses and prevents chronic vasculopathy in CD40 ligand-deficient mice.

Corbascio, Matthias ; Mahanty, Harish ; Österholm, Cecilia LU ; Qi, Zhongquan LU ; Pearson, Thomas C ; Larsen, Christian P ; Freise, Chris E and Ekberg, Henrik LU (2002) In Transplantation 74(1). p.35-41
Abstract
BACKGROUND: Blockade of CD40 ligand (CD40L; CD154, gp39) is a potential treatment for autoimmune disease and allograft rejection. However, CD40L-/- mice are capable of mobilizing cellular immune responses to viral, parasitic, and intracellular bacterial infections as well as rejecting skin grafts with nearly the same efficiency as wild-type mice. CD40L-deficient mice (CD40L-/-) or wild-type mice treated with anti-CD40L develop chronic vasculopathy only 8 weeks after allogeneic heart transplantation. To overcome CD40L-independent immune responses, we used anti-lymphocyte function-associated antigen monoclonal antibody (LFA)-1, which has previously been shown to inhibit CD8+ immune responses. METHODS: We conducted mixed lymphocyte reactions,... (More)
BACKGROUND: Blockade of CD40 ligand (CD40L; CD154, gp39) is a potential treatment for autoimmune disease and allograft rejection. However, CD40L-/- mice are capable of mobilizing cellular immune responses to viral, parasitic, and intracellular bacterial infections as well as rejecting skin grafts with nearly the same efficiency as wild-type mice. CD40L-deficient mice (CD40L-/-) or wild-type mice treated with anti-CD40L develop chronic vasculopathy only 8 weeks after allogeneic heart transplantation. To overcome CD40L-independent immune responses, we used anti-lymphocyte function-associated antigen monoclonal antibody (LFA)-1, which has previously been shown to inhibit CD8+ immune responses. METHODS: We conducted mixed lymphocyte reactions, cytotoxicity assays, skin transplantation, and vascularized heterotopic heart transplantation in wild-type B6 and CD40L-deficient mice in the presence and absence of anti-LFA-1 to study the effects of anti-LFA-1 in the absence of CD40L signaling. RESULTS: Anti-LFA-1 inhibited proliferation of naïve CD40L-/- mixed leukocyte reactions and the lysis of donor targets by CD40L-/- cytotoxic T lymphocytes. Anti-LFA-1-treated CD40L-/- mice that received fully MHC-mismatched skin grafts showed significant prolongation of graft survival, with a median survival time of 55 days (mean 66 days) compared with 13 and 21 days in wild-type and CD40L-/- controls, respectively. CD40L-/- mice that received fully MHC-mismatched vascularized heart transplants treated with four doses of 200 microg of anti-LFA-1 at the time of transplantation did not develop any signs of chronic vasculopathy 150 days after transplantation. CONCLUSION: These results indicate that anti-LFA-1 can complement CD40L inhibition in the prevention of undesirable immune responses. (Less)
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@article{dd13fc0b-f6c1-4315-9b86-b1193007c24c,
  abstract     = {{BACKGROUND: Blockade of CD40 ligand (CD40L; CD154, gp39) is a potential treatment for autoimmune disease and allograft rejection. However, CD40L-/- mice are capable of mobilizing cellular immune responses to viral, parasitic, and intracellular bacterial infections as well as rejecting skin grafts with nearly the same efficiency as wild-type mice. CD40L-deficient mice (CD40L-/-) or wild-type mice treated with anti-CD40L develop chronic vasculopathy only 8 weeks after allogeneic heart transplantation. To overcome CD40L-independent immune responses, we used anti-lymphocyte function-associated antigen monoclonal antibody (LFA)-1, which has previously been shown to inhibit CD8+ immune responses. METHODS: We conducted mixed lymphocyte reactions, cytotoxicity assays, skin transplantation, and vascularized heterotopic heart transplantation in wild-type B6 and CD40L-deficient mice in the presence and absence of anti-LFA-1 to study the effects of anti-LFA-1 in the absence of CD40L signaling. RESULTS: Anti-LFA-1 inhibited proliferation of naïve CD40L-/- mixed leukocyte reactions and the lysis of donor targets by CD40L-/- cytotoxic T lymphocytes. Anti-LFA-1-treated CD40L-/- mice that received fully MHC-mismatched skin grafts showed significant prolongation of graft survival, with a median survival time of 55 days (mean 66 days) compared with 13 and 21 days in wild-type and CD40L-/- controls, respectively. CD40L-/- mice that received fully MHC-mismatched vascularized heart transplants treated with four doses of 200 microg of anti-LFA-1 at the time of transplantation did not develop any signs of chronic vasculopathy 150 days after transplantation. CONCLUSION: These results indicate that anti-LFA-1 can complement CD40L inhibition in the prevention of undesirable immune responses.}},
  author       = {{Corbascio, Matthias and Mahanty, Harish and Österholm, Cecilia and Qi, Zhongquan and Pearson, Thomas C and Larsen, Christian P and Freise, Chris E and Ekberg, Henrik}},
  issn         = {{1534-6080}},
  keywords     = {{Skin Transplantation; Postoperative Complications : prevention & control; Postoperative Complications : immunology; Knockout; Mice; Inbred C57BL; Inbred C3H; Inbred BALB C; Male; Heart Transplantation; Graft Survival : immunology; Graft Rejection : therapy; Chronic Disease; Cell Division : immunology; CD40 Ligand : immunology; CD40 Ligand : genetics; Monoclonal : pharmacology; Antibodies; Graft Rejection : immunology; Animal; Support; Non-U.S. Gov't; T-Lymphocytes; Cytotoxic : cytology; Cytotoxic : immunology; Transplantation; Homologous; Vascular Diseases : immunology; Vascular Diseases : prevention & control; Vascular Diseases : therapy}},
  language     = {{eng}},
  number       = {{1}},
  pages        = {{35--41}},
  publisher    = {{Lippincott Williams & Wilkins}},
  series       = {{Transplantation}},
  title        = {{Anti-lymphocyte function-associated antigen-1 monoclonal antibody inhibits CD40 ligand-independent immune responses and prevents chronic vasculopathy in CD40 ligand-deficient mice.}},
  url          = {{http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=12134096&dopt=Abstract}},
  volume       = {{74}},
  year         = {{2002}},
}