Figure 1

Immunohistochemical staining of HLA class I, URLC10, TTK, KOC1, VEGFR1 and VEGFR2 antigens in the ESCC tissues. Typical expression of HLA class I, URLC10, TTK, KOC1, VEGFR1 and VEGFR2 in the primary ESCC tissues obtained from case 6 are shown. The staining was undertaken using the serial sections of the biopsy sample.