Table 1.

Effects of microemulsions on binding of OxRBCs and of apoptotic thymocytes by resident mouse peritoneal macrophages

Ligand	Addition	Concentration, μg/ml*	% inhibition
OxRBCs	LDL–lipid microemulsions (n = 6)†	20–30	2 ± 3
	OxLDL–lipid microemulsions (n = 7)	20–30	87 ± 10
	PS liposomes (n = 8)	30–35	95 ± 4
	Saturated-PS liposomes‡(n = 6)	30–35	81 ± 8
	PC liposomes (n = 5)	30–35	3 ± 4
	Oxidized SLPC liposomes§(n = 4)	30–35	55 ± 10
Apoptotic thymocytes	LDL–lipid microemulsion (n = 3)	20–30	2 ± 2
	OxLDL–lipid microemulsion (n = 2)	20–30	47 ± 4
	PS liposomes (n = 4)	30–35	89 ± 3
	Saturated-PS liposomes (n = 1)	31	87
	PC liposomes (n = 1)	33	0
	Oxidized SLPC liposomes (n = 1)§	33	33

^*Concentrations of liposome lipids added are expressed in terms of the total fatty acid content determined by gas liquid chromatography. 

^†n indicates the number of experiments. Each experiment was done in triplicate. 

^‡Saturated PS liposomes were made from 1,2-dimyristoyl-phosphatidylserine or 1,2-dipalmitoyl-phosphatidylserine in a 1:1:1 molar ratio with unoxidized, fully saturated phosphatidylcholine and cholesterol. 

^§1-stearoyl-2-linoleoyl-phosphatidylcholine (SLPC) that had been oxidized for 18–36 hr.