Endothelial Injury in Acute Graft Versus Host Disease Patients Undergoing Extracorporeal Photopheresis Treatment
Overview
This study investigates endothelial damage in patients with steroid-refractory acute graft-versus-host disease (SR-aGVHD) undergoing extracorporeal photopheresis (ECP). It identifies a biomarker panel.
Background
Acute graft-versus-host disease (aGVHD) is a serious complication following allogeneic hematopoietic cell transplantation, leading to significant morbidity and mortality. Endothelial injury is a key pathological feature of aGVHD.
Data Highlights
Biomarker
Before ECP
After 1 Month (PR)
REG3alpha
Elevated
Increased
sC5b9
Elevated
Increased
TIM3
Elevated
Decreased
Key Findings
Endothelial damage biomarkers were elevated in all SR-aGVHD patients before ECP.
No significant differences in biomarkers were found between good and poor responders before treatment.
After one month of ECP, REG3alpha and sC5b9 levels increased in poor responders.
A biomarker panel including ST2, VWF, NETs, TIM3, and ANG2 could identify good responders after one month of ECP.
The likelihood ratio for predicting ECP response with the biomarker panel was 2.0.
Clinical Implications
Monitoring endothelial damage biomarkers may provide insights into treatment response in SR-aGVHD patients undergoing ECP. The identified biomarker panel could assist clinicians in predicting patient outcomes and tailoring treatment strategies.
Conclusion
The study highlights the potential of a simplified biomarker panel to assess endothelial injury and predict treatment response in SR-aGVHD patients receiving ECP.
by Julia Martinez-Sanchez, Paola Charry, Ana Belén Moreno-Castaño, Alex Ramos, Sergi Torramade-Moix, Helena Ventosa-Capell, Marta Palomo, Olaf Penack, María Queralt Salas, María Suárez-Lledó, Francesc Fernández-Avilés, Carmen Martínez, Laura Rosiñol, Montserrat Rovira, Enric Carreras, Miquel Lozano, Gines Escolar, Joan Cid, Maribel Diaz-Ricart
