Table 1.

Expression of tumor-associated antigens (TAA) and HLA Class I in pediatric and adult ependymomas by immunohistochemistry

	Case	WHO grade	EphA2	IL-13Rα2	Survivin	WT1	HLA Class I
Pediatric	1	I	0	0a	1a	0	0
	2	I	2	2	1a	0	N/Ab
	3	I	2	1	1	0	0
	4	II	1	1	2	0a	1
	5	II	1a	0	1	0a	1
	6	II	2	2a	2a	2	N/Ab
	7	II	1a	1a	1	0a	N/Ab
	8	II	2a	1	1	0a	2
	9	II	2a	1a	1a	2a	1
	10	II	1a	1	2	1a	2
	11	II	1	1	1	0	N/Ab
	12	III	2a	1	1a	0	N/Ab
	13	III	2	2	2	1	1
	14	III	1a	0a	0a	0	1
	15	III	2	1a	2	2	0
	16	III	2a	2a	2	2	N/Ab
	17	III	1a	1	1	2a	1
	18	III	2a	2a	2	0	0
	19	III	1a	2	1	0	N/Ab
Adult	1	I	1	2	1	1a	1
	2	I	2	2	2	0	2
	3	I	2	2	2	0	1
	4	II	1a	1	1	0a	1
	5	II	2	2a	2	2	1
	6	II	2	2	1	0	0
	7	II	1a	1	1	0	0
	8	II	1	1	1	0a	1
	9	II	1	2	1	0	1
	10	II	1	2	1	0a	0
	11	II	2	2	2	0a	1
	12	II	2	1	2	0	2
	13	II	1	1	1	0	2

^aPatchy or partial staining

^bInsufficient tissue for analysis