Table 1.

Basal CD11d expression amongst leukocytes of various species.

Organism	Tissue	Cell Type or Sample Source	Basal Expression	Reference
Human	Periphery	CD14++CD16- monocyte	+	(7, 72)AB,A
		CD14+CD16+ monocyte	+	(7, 72)AB,A
		B cell	+	(6)A
		NK cell	++	(6, 73)A,B
		αβ T cell	-/+	(6)A
		γδ T cell	+	(6)A
		Eosinophil	+	(67)A
		Basophils	++	(67)A
		Neutrophil	+	(7, 67, 73, 74)A,A,A,B
	In vitro cultured	Myeloid derived dendritic cell	+	(7)B
		Myeloid derived monocyte	+	(7)B
		6-sulfo LacNAc+ dendritic cell	++	(73)B
	Spleen	Splenic red pulp macrophage	++++	(5)C
		Splenic red pulp granulocyte	++++	(5)C
	Synovial Joints	Synovial macrophage	++	(71)C
	Liver	Kupffer cell	–	(5)C
Mouse	Periphery	Peripheral leukocyte	-/+	(38, 39, 75)A,A,B
		Neutrophil	+	(76)A
		Monocyte	+	(76)A
	Spleen	Splenic red pulp macrophage	++++	(38, 77)BC,D
	Peritoneum	Peritoneal macrophage	-/+	(38, 78)A,B
	Bone Marrow	Macrophage	++	(38)BC
	Thymus	Macrophage	++	(38)BC
	Liver	Kupffer cell	–	(38)B
	Lungs	Lung homogenate	-/+	(77)D
Rat	Periphery	Peripheral leukocyte	-/+	(79)A
		Neutrophil	-/+	(79)AB
		Monocyte	-/+	(79)AB
	Lungs	Lung homogenate	+	(80)E
	Spleen	Splenic red pulp macrophage	++++	(79)AE
Canine	Periphery	Peripheral leukocyte	-/+	(4)A
		CD8+ T cell	+	(4)A
	Spleen	Splenic red pulp macrophage	++++	(4)AC
	Liver	Kupffer cell	–	(4)AC

Expression is represented on a scale of – (not detected) to ++++ (highly expressed). A limitation encountered when comparing CD11d expression across studies was the variation in detection method: flow cytometry (A), immunocytochemistry (B), immunohistochemistry (C), quantitative PCR (D), and western blot (E).