Immunomodulatory Effects of Different Cellular Therapies of Bone Marrow Origin on Chimerism Induction and Maintenance Across MHC Barriers in a Face Allotransplantation Model.
PBN-AR
Instytucja
Instytut Genetyki Człowieka Polskiej Akademii Nauk
Informacje podstawowe
Główny język publikacji
angielski
Czasopismo
Archivum Immunologiae et Therapiae Experimentalis
ISSN
0004-069X
EISSN
1661-4917
Wydawca
BIRKHAUSER VERLAG AG
DOI
URL
Rok publikacji
2016
Numer zeszytu
Strony od-do
299-310
Numer tomu
64
Identyfikator DOI
Liczba arkuszy
1,2
Autorzy
(liczba autorów: 7)
Pozostali autorzy
+ 6
Słowa kluczowe
angielski
Vascularized composite allograft/allotransplantation
face transplantation
chimerism and tolerance
bone marrow
mesenchymal stromal cells
chimeric cells
Open access
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Język
angielski
Treść
Many more patients would benefit from vascularized composite allotransplantation if less toxic and safer immunosuppressive protocols will become available. Tolerance induction protocols with donor cells co-transplantation are one of the promising pathways to reduce maintenance immunosupressive regimens. We investigated the role of donor bone marrow cells (BMC), mesenchymal stromal cells (MSC) and in vivo created chimeric cells (CC) used as supportive therapies in a fully MHC-mismatched rat face transplantation model. Twenty-four fully MHC-mismatched hemiface transplantations were performed between ACI (RT1(a)) donors and Lewis (RT1(l)) recipients under combined seven-day immunosuppressive regimen of anti-αβ-T-cell receptor (TCR) monoclonal antibody and cyclosporin A. We studied four experimental groups-group 1: no cellular therapy; group 2: supportive therapy with BMC; group 3: supportive therapy with MSC; group 4: supportive therapy with CC generated in a primary chimera. We evaluated clinical and histological rejection grades, transplanted cells migration, donor-specific chimerism in the peripheral blood and bone marrow compartments, and CD4(+)/CD25(+) T-cell levels. Face allograft rejection was observed at 26.8 ± 0.6 days post-transplant (PT) in the absence of cellular therapy, at 34.5 ± 1.1 days for group 2, 29.3 ± 0.8 days for group 3, and 30.3 ± 1.38 PT for group 4. The longest survival was observed in allografts supported by co-transplantation of BMC. All support in cellular therapies delayed face allograft rejection by chimerism induction and/or immunomodulatory properties of co-transplanted cells. Survival time was comparable between groups, however, further studies, with different cell dosages, delivery routes and delivery times are required.
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System-identifier
PX-581b0611c2dc10f2619de2fc
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