Design and Optimization of the Circulatory Cell-Driven Drug Delivery Platform

Table 1

Properties of red blood cells, mesenchymal stem cells, and leukocytes.

	RBC	MSC	Leukocyte
Amount (million/μL)	3.5-5	To be determined	0.0004-0.001
			Neutrophil	Eosinophil	Basophil	Monocyte	Lymphocyte
			50-70%	1-3%	0.4-1%	2-8%	25-35%
							T cell	B cell
							75%	10-15%
Diameter (μm)	7-8.5	30-40	10-12	12-15	12-15	20-30	6-12	6-12
Lifespan (days)	120	1-2	3-4	8-12	12-15	1-5	4-35	>30