Elevated Levels of CD64 MFI on Monocyte Subsets Are Associated with a History of Stroke in Sickle Cell Disease

Conclusion: Levels of monocyte subsets have been shown to correlate with clinical outcomes in non-SCD stroke, but to our knowledge this is the first study to examine their roles in ischemic stroke in SCD. The pathophysiology of stroke in SCD is unique and the role of monocytes in it deserves separate study from the role of monocytes in non-SCD stroke. We saw that while monocyte subsets were associated with a history of ischemic stroke, CD64 MFI on all monocyte subsets showed a strong association. We wonder if this may be due to CD64 MFI being a marker for cells which are more adherent to endothelium as has been shown in previous studies. This creates a need for future studies. In particular it would be valuable to know if increased CD64 MFI precedes stroke and could be used as a marker of future stroke risk.TableDisclosuresNo relevant conflicts of interest to declare.

Source: Blood - November 21, 2018 Category: Hematology Authors: Curtis, S. A., Balbuena-Merle, R., Devine, L., Zelterman, D., Roberts, J. D., Dearborn-Tomazos, J., Sansing, L., Hendrickson, J. E. Tags: 114. Hemoglobinopathies, Excluding Thalassemia-Clinical: Poster I Source Type: research