Table 1.

Tested surface markers and their major expressing cells in circulation

Markers	Major Cell Origin
CD81	B cells [18–21], T cells [22], Natural Killer (NK) cells [23]
CD9	B cells [24, 25], T cells [26], NK cells, monocytes, macrophages, DCs [27]
CD29	Adipose-derived stem cells [28], mesenchymal stem cells [29, 30]
CD63	T cells [31], NK cells [23], platelets [32], basophils [33]
CD8	Cytotoxic T cells [34–36]
CD4	Helper T cells [34–36]
CD56	NK cells [34, 35]
CD15	Neutrophils [37]
CD68	Monocytes, macrophages [38, 39]
CD14	Monocytes, macrophages [34, 35, 40]
CD19	B cells [34, 35]
CD235a	Red blood cells (RBC) [41]
CD41a	Megakaryocyte, platelets [32, 41], HSCs [42]
CD31	HSCs, T cells, B cells, NK cells, monocytes, macrophages, DCs [43, 44]
CD34	HSCs, progenitor cells [45, 46]
HLA-ABC	Nucleated cells and platelets [47]
HLA-G	Mesenchymal stem cells, Monocytes [48]
HLA-DRDPDQ	Monocytes, macrophages, DCs, B cells and activated T cells [47]