Article Impact Level: HIGH Data Quality: STRONG Summary of Nature Cardiovascular Research https://doi.org/10.1038/s44161-026-00836-0 Dr. Mathis Richter et al.
Points
- University of Münster scientists utilized high-resolution spectral flow cytometry to precisely characterize the maturation states of circulating white blood cells during acute, highly stressful cardiovascular emergencies.
- Initial laboratory screening of more than 200 patients revealed that severe ST-elevation myocardial infarctions trigger the emergency bone marrow release of highly immature cell precursors called preneutrophils.
- Plasma cytokine profiling confirmed a highly coordinated inflammatory signature indicating that the body draws directly on its earliest cell reserves to manage severe cardiac tissue injury.
- Data from two independent validation cohorts comprising hundreds of additional patients proved that immature granulocytic counts predicted death within the first 30 days better than established benchmarks.
- The diagnostic marker remained an independent predictor of survival in multivariate models incorporating traditional risk factors, enabling immediate and low-cost stratification of vulnerable patients upon hospital admission.
Summary
Conducted to improve early risk stratification upon hospital admission, this study analyzed the systemic inflammatory responses driven by the bone marrow-nephron axis during acute cardiovascular emergencies. While neutrophil mobilization under physiological stress has been recognized for a century, the distinct clinical relevance of specific cell maturation stages across different pathological states remained unclear. The research sought to determine if the presence of immature leukocyte precursors could serve as a reliable, direct biological indicator of disease severity and short-term mortality risk in patients experiencing acute ischemic tissue injuries.
Using high-resolution spectral flow cytometry, investigators profiled blood samples from a discovery cohort of more than 200 individuals presenting with ST-elevation myocardial infarction (STEMI), heart failure, stroke, or healthy baselines. The data revealed that the emergency recruitment of immature cells was tightly correlated with the severity of the primary condition, peaking drastically in STEMI cases with the unique appearance of preneutrophils, the final mitotic progenitor stage. Simultaneous plasma cytokine profiling identified a coordinated inflammatory signature consistent with active emergency granulopoiesis accompanying this increased cell mobilization.
To validate the clinical predictive utility of these findings, researchers tracked the immature granulocyte (IG) count via routine differential blood counts across two independent prospective and retrospective validation cohorts comprising several hundred patients. The clinical evaluation proved that the IG value was an independent predictor of short-term mortality, outperforming established traditional biomarkers for predicting death within the first 30 days. These results suggest that utilizing routine differential laboratory counts represents a highly viable and cost-effective triage strategy to identify high-risk STEMI patients immediately upon hospital admission, allowing for accelerated clinical monitoring and targeted therapeutic interventions.
Link to the article: https://www.nature.com/articles/s44161-026-00836-0
References
Richter, M., von Göwels, J., Fähndrich, M., Lipgens Fernandez, C., Grohn, K., Welzel, M., Schwarz, D., Lang, A., Polzin, A., Reinartz Groba, S., Farinola, L., Ghosh, S., Heming, J.-N., Aleth, H., Akhalkatsi, A., Marjani, K., Rübsamen, N., Radecke, T., Rosenbauer, F., … Soehnlein, O. (2026). Depth of neutrophil mobilization stratifies survival in ST-elevation myocardial infarction. Nature Cardiovascular Research, 1–12. https://doi.org/10.1038/s44161-026-00836-0
