Serum thymus and activation regulated chemokine levels post-lung transplantation as a predictor for the bronchiolitis obliterans syndrome.
The main reason for mortality after lung transplantation is the bronchiolitis obliterans syndrome (BOS), which represents chronic rejection. As soluble CD30, which is produced mainly by activated T helper 2 (Th2) cells, was shown to be related to development of BOS, we aimed to investigate the relation between development of BOS and Th2 chemoattractant thymus and activation regulated chemokine (TARC/CCL17). In 54 patients we measured serum TARC levels prior to transplantation by enzyme-linked immunosorbent assay, and in 44 of these patients sera were analysed at months 1, 2 and 3 after lung transplantation. In addition, longitudinal measurements were performed in sera from eight healthy controls and 14 patients, the latter taken over a period of 2 years post-transplantation from seven patients developing BOS plus seven clinically matched BOS-free patients. Median serum TARC levels post-transplantation of patients who developed BOS were significantly lower than those of the matched BOS-free patients (P = 0.05). A receiver operating characteristics analysis (area under the curve 0.77), together with a Kaplan-Meyer analysis, showed that serum TARC levels below 325 pg/ml in the first month post-transplantation can predict development of BOS post-transplantation (P = 0.001). In contrast, pretransplant serum TARC levels were not significantly different between patients developing BOS, BOS-free patients or healthy controls. In conclusion, pretransplantation serum TARC levels do not predict the development of BOS post-transplantation, but measurement of the serum TARC levels in the first month directly after transplantation can provide us with a tool to identify the group at risk of developing BOS.
Paantjens
A W M
AW
Department of Immunology, University Medical Centre Utrecht, Utrecht, the Netherlands. a.paantjens@umcutrecht.nl
Kwakkel-van Erp
J M
JM
van Ginkel
W G J
WG
van Kessel
D A
DA
van den Bosch
J M M
JM
van de Graaf
E A
EA
Otten
H G
HG
D000293:Adolescent; D000328:Adult; D015415:Biomarkers / Q000097:blood; D001989:Bronchiolitis Obliterans / Q000175:diagnosis* / Q000209:etiology; D054414:Chemokine CCL17 / Q000097:blood*; D004797:Enzyme-Linked Immunosorbent Assay / Q000379:methods; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007165:Immunosuppression Therapy; D016040:Lung Transplantation / Q000009:adverse effects*; D008297:Male; D008875:Middle Aged; D011182:Postoperative Care / Q000379:methods; D011184:Postoperative Period; D011379:Prognosis
D015415:Biomarkers; D054414:Chemokine CCL17
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