Abstract
Acute graft-versus-host disease (aGVHD) is the major cause of non-relapse mortality following allogeneic hematopoietic stem cell transplantation. To date, there are no consensus specific plasma biomarkers for aGVHD. We recently identified several candidates differentially expressed in aGVHD patients. Here, we have validated one such candidate: lipopolysaccharide-binding protein (LBP). We detected plasma LBP level by ELISA in 73 patients and performed correlation analysis with the progression and severity of aGVHD. We found that plasma LBP level increased during the period of aGVHD and decreased markedly as aGVHD was resolved. LBP level in patients with moderate aGVHD (25-50 % skin rash area of grade 1 and grade 2) was higher than in patients with no, little (skin rash area <25 % of grade 1), or severe aGVHD (grade 3-4). Higher LBP level indicated higher probability of aGVHD. Multivariate analysis showed that LBP level above 15000 ng/ml was significantly associated with an increased risk of aGVHD (HR 2.43; 95 % CI 1.29-4.58; P = 0.006). If LBP level exceeded 15000 ng/ml at d7 and d14 after HSCT, the subsequent probability of aGVHD increased markedly, especially at the time point of d14. There was no correlation between LBP level...Continue Reading
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