Figure 8From: Lysosomal drug sequestration as a mechanism of drug resistance in vascular sarcoma cells marked by high CSF-1R expressionCanine hemangiosarcoma cells express CD34, CD117, and CD133. (A) Cell surface expression of CD34, CD117, and CD133 by COSB and (B) DD-1 cells was assessed using flow cytometry. Positive staining is indicated by the solid black lines, and the isotype controls are represented as shaded regions. MFI = mean fluorescence intensity.Back to article page