Murine Bone Marrow Stromal Progenitor Cells Elicit an In Vivo Cellular and Humoral Alloimmune Response
| Autor: | Jessica C. Tebbets, Andrea T. Badillo, Kirstin J. Beggs, Alan W. Flake, Elisabeth H. Javazon |
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| Rok vydání: | 2007 |
| Předmět: |
Male
Isoantigens Stromal cell T cell Bone Marrow Cells Mesenchymal Stem Cell Transplantation Article 03 medical and health sciences Mice 0302 clinical medicine Immune system In vivo medicine Immune Tolerance Animals Transplantation Homologous Progenitor cell Murine 030304 developmental biology Bone Marrow Transplantation 0303 health sciences Mice Inbred BALB C Transplantation biology business.industry Mesenchymal Stem Cells Skin Transplantation Hematology 3. Good health Mice Inbred C57BL Tolerance induction medicine.anatomical_structure 030220 oncology & carcinogenesis Immunology CD4 Antigens biology.protein Stromal progenitor cells Bone marrow Antibody Stromal Cells business Immune recognition |
| Zdroj: | Biology of Blood and Marrow Transplantation. 13(4):412-422 |
| ISSN: | 1083-8791 |
| DOI: | 10.1016/j.bbmt.2006.12.447 |
| Popis: | Stromal progenitor cells (SPC) exhibit immunosuppressive effects in vitro that have led to speculation regarding their capacity to evade host immune recognition and to treat autoimmune diseases and gravt-versus-host disease. However, there is little in vivo experimental data to support these immunologic claims. To assess immune recognition of SPC in vivo, we evaluated the immune response of animals transplanted with SPC. C57BL/6 (B6) or Balb/c adult, murine, bone marrow-derived SPC (AmSPC) were administered by intraperitoneal injection into B6 recipients. T cell proliferation and alloantibody response was assessed from spleens and peripheral blood harvested from transplanted animals and analyzed by cell proliferation assay and flow cytometry. To assess tolerance induction, transplanted animals also received allogeneic skin grafts. Animals injected with allogeneic AmSPC mounted an accelerated CD4 response to alloantigen compared to syngeneic AmSPC injected and uninjected controls. Allogeneic AmSPC-injected animals also demonstrated high titers (≥1:1000) of antibody directed against allogeneic AmSPC targets. Animals primed with donor or host-matched AmSPC also failed to induce tolerance, and all animals exhibited rejection of allogeneic skin grafts (n = 7, P < .0001). In contrast to their in vitro behavior, our data demonstrate that AmSPC are recognized by the host immune system in vivo, elicit a cellular and humoral immune response, and fail to induce tolerance. These findings have significant implications for all allogeneic SPC-based therapeutic strategies. |
| Databáze: | OpenAIRE |
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