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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 J+Am+Soc+Nephrol
2015 ; 26
(11
): 2840-51
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
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English Wikipedia
Urinary C-X-C Motif Chemokine 10 Independently Improves the Noninvasive Diagnosis
of Antibody-Mediated Kidney Allograft Rejection
#MMPMID25948873
Rabant M
; Amrouche L
; Lebreton X
; Aulagnon F
; Benon A
; Sauvaget V
; Bonifay R
; Morin L
; Scemla A
; Delville M
; Martinez F
; Timsit MO
; Duong Van Huyen JP
; Legendre C
; Terzi F
; Anglicheau D
J Am Soc Nephrol
2015[Nov]; 26
(11
): 2840-51
PMID25948873
show ga
Urinary levels of C-X-C motif chemokine 9 (CXCL9) and CXCL10 can noninvasively
diagnose T cell-mediated rejection (TCMR) of renal allografts. However,
performance of these molecules as diagnostic/prognostic markers of
antibody-mediated rejection (ABMR) is unknown. We investigated urinary CXCL9 and
CXCL10 levels in a highly sensitized cohort of 244 renal allograft recipients (67
with preformed donor-specific antibodies [DSAs]) with 281 indication biopsy
samples. We assessed the benefit of adding these biomarkers to conventional
models for diagnosing/prognosing ABMR. Urinary CXCL9 and CXCL10 levels,
normalized to urine creatinine (Cr) levels (CXCL9:Cr and CXCL10:Cr) or not,
correlated with the extent of tubulointerstitial (i+t score; all P<0.001) and
microvascular (g+ptc score; all P<0.001) inflammation. CXCL10:Cr diagnosed TCMR
(area under the curve [AUC]=0.80; 95% confidence interval [95% CI], 0.68 to 0.92;
P<0.001) and ABMR (AUC=0.76; 95% CI, 0.69 to 0.82; P<0.001) with high accuracy,
even in the absence of tubulointerstitial inflammation (AUC=0.70; 95% CI, 0.61 to
0.79; P<0.001). Although mean fluorescence intensity of the immunodominant DSA
diagnosed ABMR (AUC=0.75; 95% CI, 0.68 to 0.82; P<0.001), combining urinary
CXCL10:Cr with immunodominant DSA levels improved the diagnosis of ABMR
(AUC=0.83; 95% CI, 0.77 to 0.89; P<0.001). At the time of ABMR, urinary CXCL10:Cr
ratio was independently associated with an increased risk of graft loss. In
conclusion, urinary CXCL10:Cr ratio associates with tubulointerstitial and
microvascular inflammation of the renal allograft. Combining the urinary
CXCL10:Cr ratio with DSA monitoring significantly improves the noninvasive
diagnosis of ABMR and the stratification of patients at high risk for graft loss.