我们组之前有人做过了，mcf7表达nkkg2dl。

The NKG2DL expression levels of seven human BC cell lines (BCap37, MDA-MB-231, Hs 578T, MCF-7, SK-BR-3, MDA-MB-468 and BT-474) ，你直接看

Silencing NKG2D ligand-targeting miRNAs enhances natural killer cell-mediated cytotoxicity in breast cancer

这篇文献吧