TABLE 3.

Immunostaining for donor-specific chimerism

Patient	Donor-specific HLA-mAbs tested	Positive Staining for donor HLA	Number of positive cells/ section
			Lymph nodesa	Skinb
17	6	B44	<10	0
33	1	B18	<10	<10
51	2	B7,40	10–20	0
		A3	<10	<5
52	Y probe	N/A	0	2
90	5	DQW2	<10	<5

^aScattered in paracortex and more cells in lymph node capsule.

^bLocated in periarterial advential space and connective tissue.