Human CD200 Suppresses the HL-60 Mediated Xenocytotoxicity.
Transplant Proc
; 52(6): 1910-1912, 2020.
Article
en En
| MEDLINE
| ID: mdl-32444126
ABSTRACT
BACKGROUND:
Neutrophils play an important role in xenogeneic rejection and represent a major obstacle in clinical application of xenografts. CD200 and its receptor CD200R are both type-1 membrane glycoproteins, which are members of the immunoglobulin superfamily (IgSF) and the ligation of CD200 with CD200R induces inhibitory NPXY signaling. The expression of CD200R appears in myeloid cells such as macrophages and granulocytes. Thus, we hypothesized that human CD200 expression on porcine cells might suppress the xenogeneic neutrophil-mediated cytotoxicity against porcine cells.METHODS:
To prove our hypothesis, the suppressive effect of human CD200 in neutrophil-like human cell line 60 (HL-60)-mediated xenogeneic cytotoxicity against swine endothelial cells (SECs) was examined. Cytotoxicity was assessed with water-soluble tetrazolium salt 8 (WST-8) assay.RESULTS:
HL-60 cells differentiated into CD66b+ CD200R+ neutrophil-like cells in the presence of dimethyl sulfoxide (DMSO). HL-60-mediated cytotoxicity against SECs was significantly suppressed by human CD200 on SECs.CONCLUSIONS:
The findings in this study indicate that human CD200 may suppress neutrophil-mediated xenogeneic rejection.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Antígenos CD
/
Células Endoteliales
/
Xenoinjertos
/
Neutrófilos
Límite:
Animals
/
Humans
Idioma:
En
Revista:
Transplant Proc
Año:
2020
Tipo del documento:
Article
País de afiliación:
Japón