Reliable assessment of bone marrow and bone marrow concentrates using automated hematology analyzer.

Aim: A limiting factor in advancement of bone marrow based cell therapies is the lack of characterization of cell products delivered to patients. Methods: Using an automated hematology analyzer that can be implemented in clinical setting, the composition of bone marrow aspirates (n = 17 patients) and bone marrow concentrates (n = 12 patients) were assessed. ICC estimates were calculated for measuring reliability. Results: Bone marrow aspirates assessment resulted in excellent reliability for determining white blood cells (ICC - 0.96; 95% CI: 0.92-0.99), red blood cells (ICC - 0.9; 95% CI: 0.77-0.96), platelets (ICC - 0.93; 95% CI: 0.85-0.97) composition. Bone marrow concentrate assessment resulted in excellent reliability for determining white blood cells (ICC - 0.97; 95% CI: 0.93-0.99), platelets (ICC - 0.95; 95% CI: 0.89-0.99) and moderate reliability for red blood cells (ICC - 0.66; 95% CI: 0.36-0.87) composition. Conclusion: Modern automated hematology analyzers could assist to better characterize the cell therapy products to provide reliable and consistent outcomes.