Syncytin-1 surface expression on AML and B-cell ALL leukocytes. Flow cytometry was applied to assess syncytin-1 surface expression on leukocytes extracted from AML and B-cell ALL bone marrow samples. (A) Graph of syncytin-1 surface expression across all leukocytes in the AML and B-cell ALL cohorts. The AML cohort displayed significantly higher leukocytic syncytin-1 surface expression over the B-cell ALL cohort. (B) Graph of syncytin-1 surface expression broken down by leukocyte subset, i.e., blast (Blast), granulocyte (Gra), lymphocyte (Lym), and monocyte (Mono). *
p<0.05 relative to B-cell ALL group.