图4. 流式细胞术分析CXCR4过表达后依布替尼（IBN）对HBL-1细胞凋亡的影响.
1：HBL-1细胞单独培养（对照组）；2：CXCR4过表达组；3：HBL-1细胞+骨髓基质细胞（MSC）组；4：CXCR4过表达+MSC组
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