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2018 ; 13
(7
): e0200631
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Clinical significance of CD161+CD4+ T cells in the development of chronic
antibody-mediated rejection in kidney transplant recipients
#MMPMID30011312
Kim KW
; Kim BM
; Doh KC
; Kim CD
; Jeong KH
; Lee SH
; Yang CW
; Chung BH
PLoS One
2018[]; 13
(7
): e0200631
PMID30011312
show ga
In this study, we investigated whether CD161+CD4+ T cells can reflect the Th17
pathway in kidney transplant recipients (KTRs) and investigated the clinical
significance of this cell type in chronic antibody-mediated rejection (cAMR) in
KT. First, we investigated the relationship between CD161+CD4+ T and Th17 cells
by flow cytometry and microarray analysis in an in vitro study. Second, we
compared the proportion of T cell subsets including CD161+CD4+ T cells in cAMR (n
= 18), long-term graft survival (LTGS) (n = 46), and interstitial
fibrosis/tubular atrophy (IF/TA) (n = 22). We compared CD161+ cell infiltration
between cAMR and IF/TA and also examined the effect of CD161+ T cells on human
renal proximal tubular epithelial cells (HRPTEpiC). In flow cytometry, the
proportion of CD161+CD4+ T cells showed a significant correlation with the
proportion of Th17 cells. In microarray analysis, transcripts associated with the
Th17 pathway such as IL18RAP, IL-18R1, IL23R, IL12RB2, RORC, TBX21, and EOMES
were upregulated in CD161+ cells compared with CD161- cells. In an ex vivo study,
only CD161+CD4+ T cells showed a significant increase in the cAMR group compared
with IF/TA and LTGS groups. In allograft tissue, CD161+ cells showed a higher
level of infiltration in the cAMR group than the IF/TA group. Lastly, CD161+ T
cells increased the production of inflammatory cytokines from HRPTEpiC in a
dose-dependent manner. This study suggests that monitoring of CD161+ T cells can
be useful to detect the progression of cAMR.