“…Thirdly, oesophageal SCC patients with both HLA-A24-and HER-2-positive tumours (1 þ / 2 þ /3 þ ) accounted for 26% of these cases, and both HLA-A2-and HER-2-positive tumours accounted for 18% of them. The frequencies of HER-2 overexpression in oesophageal SCC analysed by IHC ranged from 0 to 55.9% (Mori et al, 1987 HER-2 in oesophageal squamous cell carcinoma K Mimura et al Suo et al, 1992Suo et al, , 1995Shiga et al, 1993;Suwanagool et al, 1993;Lam et al, 1998;Hardwick et al, 1997;Akamatsu et al, 2003). Furthermore, reports describing HER-2 gene amplification ranged from 0 to 25%, in which these studies were performed by Northern blot, slot blot or RT -PCR analysis (Shiga et al, 1993;Ikeda et al, 1996;Tanaka et al, 1997;Friess et al, 1999).…”