Local administration of Mitomycin-C-Treated peripheral blood mononuclear cells (PBMCs) prolongs allograft survival in vascularized composite allotransplantation

Background: VCA offers a potential treatment for extensive tissue defects. First results of systemic administration of Mitomycin C-treated PBMCs in VCA demonstrated a significant prolongation of allograft survival. The aim of this study is to evaluate if local administration of MMC-PBMCs prolongs al...

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Hauptverfasser: Radu, Christian Andreas (VerfasserIn) , Gebhard, Martha-Maria (VerfasserIn) , Germann, Günter (VerfasserIn) , Terness, Peter (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 2016
In: Microsurgery
Year: 2016, Jahrgang: 36, Heft: 5, Pages: 417-425
ISSN:1098-2752
DOI:10.1002/micr.30003
Online-Zugang:Verlag, Volltext: http://dx.doi.org/10.1002/micr.30003
Verlag, Volltext: http://onlinelibrary.wiley.com/doi/10.1002/micr.30003/abstract
Volltext
Verfasserangaben:Christian Andreas Radu, Jurij Kiefer, Martha Maria Gebhard, Amir Khosrow Bigdeli, Volker Jürgen Schmidt, Guenter Germann, Marcus Lehnhardt, Peter Terness, Ulrich Kneser, andThomas Kremer

MARC

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520 |a Background: VCA offers a potential treatment for extensive tissue defects. First results of systemic administration of Mitomycin C-treated PBMCs in VCA demonstrated a significant prolongation of allograft survival. The aim of this study is to evaluate if local administration of MMC-PBMCs prolongs allograft survival in allogeneic hind limb transplantations of the rat. Methods: Sixty allogeneic hind limb transplantations in the rat were performed in six groups. Lewis rats (LEW) were used as hind limb donors and Brown-Norway rats (BN) as recipients. Animals in group A received donor-derived MMC-treated PBMCs locally (i.m.). Group B received no immunosuppressive therapy, group C received a standard immunosuppressive regime consisting of FK506 and Prednisolon, group D (BN to BN) comprised isograft transplantations without immunosuppressive treatment, group E received non-treated PBMCs (i.m.) and group F received phosphate buffered saline (PBS) without cells. The transplanted hind limbs were assessed for color, edema, skin, hair condition, and consistency of the thigh every 8 hours. Results: Rejection in group A was delayed to an average of 7.2 ± 0.6 days. Survival times were significantly prolonged (P < 0.01) compared to control groups B, E, and F (5.5 ± 0.7, 5.8 ± 0.7, and 5.7 ± 0.5 days). Control groups C and D showed no signs of rejection. Conclusion: The findings of this study show that local administration of MMC-PBMCs has no side effects and significantly extends allograft survival. Further experiments with MMC-PBMCs treatments repeated at different time-points and being added to low dose immunosuppressive protocols need to be performed to improve experimental and eventually clinical outcome after VCA. © 2015 Wiley Periodicals, Inc. Microsurgery 36:417-425, 2016. 
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