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Valenzuela NM, Hong L, Shen XD, Gao F, Young SH, Rozengurt E, Kupiec-Weglinski J, Fishbein MC, Reed EF. Blockade of p-selectin is sufficient to reduce MHC I antibody-elicited monocyte recruitment in vitro and in vivo. Am J Transplant 2013; 13:299-311. [PMID: 23279566 PMCID: PMC3563267 DOI: 10.1111/ajt.12016] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2012] [Revised: 10/19/2012] [Accepted: 10/24/2012] [Indexed: 01/25/2023]
Abstract
Donor-specific HLA antibodies significantly lower allograft survival, but as yet there are no satisfactory therapies for prevention of antibody-mediated rejection. Intracapillary macrophage infiltration is a hallmark of antibody-mediated rejection, and macrophages are important in both acute and chronic rejection. The purpose of this study was to investigate the Fc-independent effect of HLA I antibodies on endothelial cell activation, leading to monocyte recruitment. We used an in vitro model to assess monocyte binding to endothelial cells in response to HLA I antibodies. We confirmed our results in a mouse model of antibody-mediated rejection, in which B6.RAG1(-/-) recipients of BALB/c cardiac allografts were passively transferred with donor-specific MHC I antibodies. Our findings demonstrate that HLA I antibodies rapidly increase intracellular calcium and endothelial presentation of P-selectin, which supports monocyte binding. In the experimental model, donor-specific MHC I antibodies significantly increased macrophage accumulation in the allograft. Concurrent administration of rPSGL-1-Ig abolished antibody-induced monocyte infiltration in the allograft, but had little effect on antibody-induced endothelial injury. Our data suggest that antagonism of P-selectin may ameliorate accumulation of macrophages in the allograft during antibody-mediated rejection.
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Affiliation(s)
- Nicole M Valenzuela
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, UCLA, Los Angeles, CA 90095
| | - Longsheng Hong
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, UCLA, Los Angeles, CA 90095
| | - Xiu-Da Shen
- Department of Surgery, University of California, Los Angeles, CA 90095
| | - Feng Gao
- Department of Surgery, University of California, Los Angeles, CA 90095
| | - Steven H. Young
- Division of Digestive Diseases, Department of Medicine, Center for Ulcer Research and Education, Digestive Diseases Research Center, David Geffen School of Medicine and Molecular Biology Institute, University of California, Los Angeles, CA 90095, USA
| | - Enrique Rozengurt
- Division of Digestive Diseases, Department of Medicine, Center for Ulcer Research and Education, Digestive Diseases Research Center, David Geffen School of Medicine and Molecular Biology Institute, University of California, Los Angeles, CA 90095, USA
| | | | - Michael C. Fishbein
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, UCLA, Los Angeles, CA 90095
| | - Elaine F Reed
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, UCLA, Los Angeles, CA 90095
,University of California Los Angeles (UCLA) Immunogenetics Center
,Correspondence should be addressed to: Immunogenetics Center Department of Pathology and Laboratory Medicine David Geffen School of Medicine University of California Los Angeles 1000 Veteran Ave Los Angeles, CA 90095 Phone: 310-794-4943, Fax: 310-206-3216
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Christopher K, Mueller TF, Ma C, Liang Y, Perkins DL. Analysis of the innate and adaptive phases of allograft rejection by cluster analysis of transcriptional profiles. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2002; 169:522-30. [PMID: 12077284 DOI: 10.4049/jimmunol.169.1.522] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Both clinical and experimental observations suggest that allograft rejection is a complex process with multiple components that are, at least partially, functionally redundant. Studies using graft recipients deficient in various genes including chemokines, cytokines, and other immune-associated genes frequently produce a phenotype of delayed, but not indefinitely prevented, rejection. Only a small subset of genetic deletions (for example, TCR(alpha) or beta, MHC I and II, B7-1 and B7-2, and recombinase-activating gene) permit permanent graft acceptance suggesting that rejection is orchestrated by a complex network of interrelated inflammatory and immune responses. To investigate this complex process, we have used oligonucleotide microarrays to generate quantitative mRNA expression profiles following transplantation. Patterns of gene expression were confirmed with real-time PCR data. Hierarchical clustering algorithms clearly differentiated the early and late phases of rejection. Self-organizing maps identified clusters of coordinately regulated genes. Genes up-regulated during the early phase included genes with prior biological functions associated with ischemia, injury, and Ag-independent innate immunity, whereas genes up-regulated in the late phase were enriched for genes associated with adaptive immunity.
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Affiliation(s)
- Kenneth Christopher
- Laboratory of Molecular Immunology, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
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Affiliation(s)
- P F Lalor
- Liver Research Laboratories, University of Birmingham MRC Centre for Immune Regulation, Institute of Clinical Research, Queen Elizabeth Hospital, Edgbaston
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Affiliation(s)
- H Rabb
- Division of Nephrology, Hennepin County Medical Center, University of Minnesota Medical School, Minneapolis, USA
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5
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Simon AR, Warrens AN, Sykes M. Efficacy of adhesive interactions in pig-to-human xenotransplantation. IMMUNOLOGY TODAY 1999; 20:323-30. [PMID: 10379051 DOI: 10.1016/s0167-5699(99)01485-1] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Successful xenotransplantation depends on many factors, one being the interactions of cross-species adhesion molecule-ligand pairs. Depending on the approach used to facilitate xenotransplantation, these interactions can play differing roles. Here, André Simon, Anthony Warrens and Megan Sykes review the existing information on pig-to-human adhesive interactions and its implication for different approaches to pig-to-human xenotransplantation.
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Affiliation(s)
- A R Simon
- Bone Marrow Transplantation Section, Transplantation Biology Research Center, Surgical Service, Massachusetts General Hospital/Harvard Medical School, MGH East, Building 149-5102, 13th Street, Boston, MA 02129, USA.
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Levrey H, Hertz MI. Chronic lung allograft dysfunction. Transplant Rev (Orlando) 1998. [DOI: 10.1016/s0955-470x(98)80009-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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