Condition	Cellular accumulation (% drug alone in WT cells)
	WT cells		CIP-resistant cells
	CIP	PMEA	CIP	PMEA
Drug alone (50 μM)	100±9	100±7	15±10	37±3
+ CIP 540 μM	−	146±4	−	187±34
+ Bis(POM)PMEA 1000 μM	170±21	−	141±28	−
+ SQV 300 μM	414±32	ND	278±13	ND
+ RTV 300 μM	112±13	ND	25±9	ND

Values in bold characters highlight values that are significantly different from those measured for the drug alone