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29 October 2015 : Short communication  

Increased Numbers of 6-sulfo LacNAc (slan) Dendritic Cells in Hand Transplant Recipients

Wojciech BaranABCE, Maria KoziolB, Zdzisław WoźniakCD, Mirosław BanasikAB, Maria BoratyńskaEFG, Anja KunzeDEF, Knut SchakelAFG

DOI: 10.12659/AOT.894828

Ann Transplant 2015; 20:649-654

Abstract

BACKGROUND
Vascularized composite allotransplantation (VCA) is a modern option for the treatment of functionally significant limb and tissue defects. In our study we aimed to characterize the morphological and histological features of the hand transplant recipient skin rejection.
MATERIAL AND METHODS
We clinically evaluated the skin and mucous membranes and microscopically assessed biopsies taken from the patient’s own skin and from the allogenic grafted limb (n=5). We also performed immunohistochemistry for presence of T lymphocytes (CD3, CD4, and CD8), B lymphocytes (CD20), macrophages (CD68), Langerhans cells (CD1a+), plasmacytoid dendritic cells (pDCs) (CD123+) and 6-sulfo LacNAc+ dendritic cells (slanDCs) (DD2+).
RESULTS
Only scattered pDCs were present in both own and skin grafts. The number of LC in the epidermis was higher in graft skin in all cases and CD1a+ cells were also present in the dermis in transplanted skin in patients with grade 1 rejection. Most interestingly, we identified far increased numbers of dermal slanDCs in the grafted skin. SlanDCs have a high capacity to produce proinflammatory cytokines and have been described as inflammatory dermal dendritic cells in psoriasis and lupus erythematosus.
CONCLUSIONS
It may be hypothesized that slanDCs identified in the skin after limb transplantation may support the local inflammatory skin reaction.

Keywords: Dendritic Cells, Graft Rejection, Hand Transplantation

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Annals of Transplantation eISSN: 2329-0358
Annals of Transplantation eISSN: 2329-0358