Table 1.

HER family protein expression levels in human gastric tumor tissues

XenograftELISA,a ng/mg proteinIHCb
EGFRHER2HER3EGFRHER2
NCI-N879.0 ± 1.2180 ± 760.88 ± 0.084++
4-1ST0.94 ± 0.10330 ± 721.9 ± 0.49++
MKN-283.5 ± 0.371.7 ± 0.390.70 ± 0.20+
  • aMeans ± SD (n = 4).

  • bIHC was according to clinical diagnosis (EGFR pharmDx kit and HercepTest).