S N Zhu1, J Yamada, J W Streilein, M R Dana. 1. Laboratory of Immunology, Schepens Eye Research Institute, Harvard Medical School, Boston, Massachusetts, USA.
Abstract
BACKGROUND: We used a murine model of orthotopic corneal transplantation to determine whether host deficiency in ICAM-1 promotes survival of corneal grafts with different degrees of allodisparity. METHODS: ICAM-1-/- and wild-type C57BL/6 (ICAM-1+/+) received corneal grafts from the following strains of mice: BALB/c (fully mismatched), BALB.b (mismatched at multiple minor H only), or B10.D2 [including major histocompatibility complex (MHC) mismatch]. Graft rejection, induction of allospecific delayed-type hypersensitivity (DTH) responses, and leukocytic infiltration of grafts were measured. RESULTS: There were no differences in long-term survival of allografts that were either fully mismatched or had only minor H disparity in ICAM-1+/+ vs. ICAM-1-/-hosts. However, whereas B10.D2 grafts were accepted in only 58% of the ICAM-1+/+ hosts, graft survival in ICAM-1-/- recipients was 100% (P=0.006). Moreover, none of the ICAM-1-/- mice receiving B10.D2 grafts developed allospecific DTH. CONCLUSIONS: Prolonged survival seen in MHC-mismatched grafts in ICAM-1-/- mice, along with a suppressed DTH response to donor alloantigens after transplantation, suggest that ICAM-1 is associated with recipient sensitization to MHC alloantigens.
BACKGROUND: We used a murine model of orthotopic corneal transplantation to determine whether host deficiency in ICAM-1 promotes survival of corneal grafts with different degrees of allodisparity. METHODS:ICAM-1-/- and wild-type C57BL/6 (ICAM-1+/+) received corneal grafts from the following strains of mice: BALB/c (fully mismatched), BALB.b (mismatched at multiple minor H only), or B10.D2 [including major histocompatibility complex (MHC) mismatch]. Graft rejection, induction of allospecific delayed-type hypersensitivity (DTH) responses, and leukocytic infiltration of grafts were measured. RESULTS: There were no differences in long-term survival of allografts that were either fully mismatched or had only minor H disparity in ICAM-1+/+ vs. ICAM-1-/-hosts. However, whereas B10.D2 grafts were accepted in only 58% of the ICAM-1+/+ hosts, graft survival in ICAM-1-/- recipients was 100% (P=0.006). Moreover, none of the ICAM-1-/- mice receiving B10.D2 grafts developed allospecific DTH. CONCLUSIONS: Prolonged survival seen in MHC-mismatched grafts in ICAM-1-/- mice, along with a suppressed DTH response to donor alloantigens after transplantation, suggest that ICAM-1 is associated with recipient sensitization to MHC alloantigens.
Authors: Antonio Di Zazzo; Maryam Tahvildari; Brinda Subbarayal; Jia Yin; Thomas H Dohlman; Takenori Inomata; Alireza Mashaghi; Sunil K Chauhan; Reza Dana Journal: Transplantation Date: 2017-04 Impact factor: 4.939
Authors: J Zhang; H K Takahashi; K Liu; H Wake; R Liu; H Sadamori; H Matsuda; T Yagi; T Yoshino; S Mori; M Nishibori Journal: Br J Pharmacol Date: 2010-07 Impact factor: 8.739
Authors: Tanja P A M Slegers; Gerard van der Veen; L Joep A Hermans; Lidy Broersma; Nico van Rooijen; Hendrika J Völker-Dieben; Gabriel van Rij; Ruth van der Gaag Journal: Graefes Arch Clin Exp Ophthalmol Date: 2003-04-16 Impact factor: 3.117