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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 PLoS+One
2015 ; 10
(4
): e0121750
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English Wikipedia
Transcriptome analysis in patients with chronic kidney disease on hemodialysis
disclosing a key role for CD16+CX3CR1+ monocytes
#MMPMID25830914
Schepers E
; Houthuys E
; Dhondt A
; De Meyer G
; Neirynck N
; Bernaert P
; Van den Bergh R
; Brouckaert P
; Vanholder R
; Glorieux G
PLoS One
2015[]; 10
(4
): e0121750
PMID25830914
show ga
The risk for cardiovascular morbidity and mortality is increased in chronic
kidney disease; in this process micro-inflammation plays an essential role.
Responsible mechanisms remain to a large extent unidentified. In this pilot study
transcriptome analysis of peripheral blood monocytes was used to identify in an
unprejudiced manner which factors could be discriminative for cardiovascular
disease in patients with chronic kidney disease on hemodialysis. Forty gender-
and age-matched, non-diabetic, non-smoking subjects with CRP < 20 mg/L were
recruited: 9 healthy controls, 11 patients with eGFR > 60 mL/min/1.73m2 and a
history of cardiovascular event (CVE), 10 patients with chronic kidney disease
stage 5 on hemodialysis without previous cardiovascular event (CKD5HD) and 10
with a previous cardiovascular event (CKD5HD/CVE). Monocytes were isolated and
their mRNA was submitted to focused transcriptome analysis using a macroarray
platform containing ca. 700 genes associated with macrophage functional capacity.
The macroarray data indicated 9 genes (8 upregulated and 1 downregulated) with a
significant differential expression in CKD5HD/CVE vs. CVE alone, after excluding
genes differentially expressed in CKD5HD vs. CONTROL: For FCGR3A (CD16) and
CX3CR1 (chemokine receptor) the upregulation vs. control and vs. CVE could be
confirmed by quantitative RT-PCR for all CKD5HD patients. Furthermore, CX3CR1
relative expression on monocytes correlated with CRP. Flow cytometric analysis of
purified monocytes confirmed a significant increase in the percentage of CD16
positive monocytes in all CKD5HD patients vs. control and CVE. The present study
indicates the importance of a specific pro-inflammatory monocyte subpopulation,
positive for CD16 and the co-expressed chemokine receptor, CX3CR1, discriminative
for CKD5HD patients.