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2017 ; 8
(ä): 1416
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English Wikipedia
T-Cell Composition of the Lymph Node Is Associated with the Risk for Early
Rejection after Renal Transplantation
#MMPMID29163492
Dedeoglu B
; Litjens NHR
; de Weerd AE
; Dor FJ
; Klepper M
; Reijerkerk D
; Baan CC
; Betjes MGH
Front Immunol
2017[]; 8
(ä): 1416
PMID29163492
show ga
BACKGROUND: The T-cell composition within the lymph node (LN) of end-stage renal
disease (ESRD) patients differs from the composition within the circulation.
Activation of the alloreactive T-cell response within secondary lymphoid organs
is important after organ transplantation. However, to date no data are present on
LN T-cell subsets and the risk for acute rejection after kidney transplantation.
METHODS: T cells from LNs of ESRD patients were analyzed for frequency of recent
thymic emigrants, relative telomere length, expression of differentiation
markers, and were related to the development of early acute rejection (EAR),
occurring within 3 months after renal transplantation (RT). Furthermore, the
alloreactive potential of mononuclear cells isolated from the LN and peripheral
blood of 10 patients was analyzed. Measures of alloreactive potential included
proliferation, cytokine production, frequencies of interferon-gamma-producing
cells, and the presence of cytotoxic molecules. RESULTS: Patients with EAR were
younger (p?=?0.019), cytomegalovirus-seropositive (p?=?0.037) and usually
received dialysis prior to RT (p?=?0.030). Next to this, patients with EAR showed
a lower CD4:CD8 ratio (p?=?0.027) within the LN. T cells from the LN were similar
with regard to alloreactive capacity compared with those within the circulation.
Univariate regression analysis showed that the CD4:CD8 ratio (OR: 0.67,
p?=?0.039), patient age (OR: 0.93, p?=?0.024), and preemptive RT (OR: 0.11,
p?=?0.046) were associated with EAR. After a multivariate analysis, only the
CD4:CD8 ratio (OR: 0.58, p?=?0.019) and preemptive RT (OR:0.05, p?=?0.012) were
associated with EAR. CONCLUSION: A lower CD4:CD8 ratio in the LN is associated
with a higher risk for the development of rejection within 3 months after RT.