Table 3.

Comparative expression of HLA class I and β‐2 microglobulin in osteosarcomas

Patient	HLA class I		β‐2 microglobulin
	Protein	mRNA	Protein	mRNA
2	Negative	ND	High	ND
11	Negative	+	High	+
17	Negative	+	High	+
20	Negative	+	High	+
21	Negative	ND	Negative	ND
12	Low	+	Low	+
15	High	+	High	+

ND, not determined.