A biomarker panel for acute graft-versus-host disease

Area of Science:

• Hematology
• Immunology
• Biomarker Discovery

Background:

• Acute graft-versus-host disease (GVHD) lacks validated diagnostic biomarkers.
• Early and accurate diagnosis of GVHD is crucial for patient outcomes.

Purpose of the Study:

• To identify and validate a panel of plasma biomarkers for diagnosing acute GVHD.
• To assess the prognostic value of the identified biomarkers for patient survival.

Main Methods:

• Plasma samples from 424 transplant patients were analyzed using antibody microarrays and ELISA.
• A discovery set identified 8 potential biomarkers, refined into a 4-protein panel via logistic regression.
• Receiver operating characteristic (ROC) curve analysis evaluated diagnostic accuracy.

Main Results:

• A 4-protein panel (interleukin-2-receptor-alpha, tumor-necrosis-factor-receptor-1, interleukin-8, hepatocyte growth factor) accurately discriminated GVHD patients.
• The panel achieved an area under the ROC curve of 0.91 in the training set and 0.86 in the validation set.
• Biomarker panel predicted survival independently of GVHD severity in Cox regression analysis.

Conclusions:

• A 4-biomarker panel can confirm GVHD diagnosis at symptom onset.
• This panel provides prognostic information, independent of GVHD severity.
• Validated biomarkers offer a significant advancement in GVHD management.