DyeCycle violet used for side population detection is a substrate of P-glycoprotein

DyeCycle violet used for side population detection is a substrate of P-glycoprotein
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DOI:
10.1002/cyto.a.22038
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发表时间:
2012-06-01
期刊:
影响因子:
3.7
通讯作者:
Wolf, Dominik
Wolf, Dominik
中科院分区:
生物学4区
文献类型:
--
作者:
Boesch, Maximilian;Reimer, Daniel;Wolf, Dominik

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癌症干细胞(CSC)越来越被认为是癌症治疗的关键靶细胞,因为它们具有致瘤性和化学抗性,因此可能引起复发性疾病。使用紫外 (UV) 激光进行侧群 (SP) 分选是一种基于 ABC 药物转运蛋白依赖性(例如 ABCG2)Hoechst 33342 外排分离 CSC 的既定方法。我们在这里展示了 Vybrant (R) DyeCycle (TM) Violet (DCV) 是一种 DNA 结合荧光团,允许使用非紫外激光(例如紫色激光)进行 SP 分选,通过 P-糖蛋白 (PgP) 进行运输。由于 PgP 在多重耐药癌细胞中可能特别丰富,而不是真正的 CSC,因此使用 DCV 的研究人员应该意识到,这种策略也可能检测表达 PgP 的非 CSC。 (c) 2012 年国际细胞计数促进会
Cancer stem cells (CSC) are increasingly recognized as key target cells for cancer therapy because they are both tumorigenic and chemoresistant and, therefore, can give rise to recurrent disease. Side population (SP) sorting using an ultraviolet (UV) laser is an established method to isolate CSC based on ABC drug transporter-dependent (e.g., ABCG2) Hoechst 33342 efflux. We here show that Vybrant (R) DyeCycle (TM) Violet (DCV), a DNA-binding fluorophor allowing SP sorting using a non-UV laser (such as violet laser), is transported via P-glycoprotein (PgP). Because PgP might be particularly abundant in multidrug-resistant cancer cells rather than bona fide CSC, investigators using DCV should be aware that this strategy might also detect PgP-expressing non-CSC. (c) 2012 International Society for Advancement of Cytometry