the results indicate that there is a correlation between the appearance of tumour antigens on the cell surface and the metastatic ability : hkbk cells at low passage ( about 30 subcultures after transformation ) showed the capping of tasa in the cell membrane and low metastatic ability , whereas hkbk cells at high passage ( about 130 subcultures after transformation ) exhibited a diffuse appearance of tasa in the cell surface and were highly metastatic .
C0007603
cell membrane
C0007634
cells