Abstract
Allogeneic stem cell transplantation (alloSCT) is an effective immunotherapy in patients with hematological malignancies. Endothelial dysfunction was linked to major complications after alloSCT. We asked the question if the “Endothelial Activation and Stress Index” (EASIX; [(creatinine × LDH) ÷ thrombocytes]) can predict mortality after alloSCT. We performed a retrospective cohort analysis in five alloSCT centers in the USA and Germany. EASIX was assessed prior to conditioning (EASIX-pre) and correlated with mortality in 755 patients of a training cohort in multivariable models. The predictive model established in the training cohort was validated in 1267 adult allo-recipients. Increasing EASIX-pre predicted lower overall survival (OS) after alloSCT, and successful model validation was achieved for the validation cohort. We found that EASIX-pre predicts OS irrespective of established scores. Moreover, EASIX-pre was also a significant prognostic factor for transplant-associated microangiopathy. Finally, EASIX-pre correlated with biomarkers of endothelial homeostasis such as CXCL8, interleukin-18, and insulin-like-growth-factor-1 serum levels. This study establishes EASIX-pre based on a standard laboratory biomarker panel as a predictor of individual risk of mortality after alloSCT independently from established clinical criteria.
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Acknowledgements
We thank the following funding agencies for supporting this work: Deutsche Forschungsgemeinschaft (TL820.8-1), Deutsche Krebshilfe (70113519), Wilhelm-Sander-Stiftung (2016.077.1), and EU306240 for supporting TL; José Carreras Leukämie-Stiftung (11R2016, 03 R/2019), Deutsche Krebshilfe (70113519), and Deutsche Forschungsgemeinschaft (PE 1450/7-1) Monika-Kutzner-Stiftung, and Wilhelm-Sander-Stiftung (2014.150.1) for supporting OP; and CA 78902, CA 18029, aCA 15704, HL 122173 for supporting RS, TG, and BMS.
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Luft, T., Benner, A., Terzer, T. et al. EASIX and mortality after allogeneic stem cell transplantation. Bone Marrow Transplant 55, 553–561 (2020). https://doi.org/10.1038/s41409-019-0703-1
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DOI: https://doi.org/10.1038/s41409-019-0703-1
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