If your ILCs are largely NK cells, there are a few ways I can think of to approach this issue. T cells express surface CD3, whereas NK cells do not; rather they express cytoplasmic CD3 only. T cells have TCR gene rearrangements, NK cells do not. NK cells express surface CD56 and the majority lack CD4 and CD8, though a normal subset will have CD8 expression. Give the close relationship between ILCs and T cells, I would expect a significant overlap in transcription factors, mRNA expression, et cetera. Please respond with more specific information regarding the ILCs, the tissue source of these cell lines, etc, if you would like to further discuss.