Table 1. Results of antigen marker expression based on IHC for MCTS from two different glioma cell lines (U87 and U251) treated with invasion inhibitors.

Marker	U87			U251
	Control	LiCl	BIO	Control	LiCl	BIO
Cleaved caspase-3	+ 1	+ 1	+ 2	+ 2	+ 1	+ 3
Nestin	+ 4	+ 4	+ 4	+ 4	+ 4	+ 4
SOX2	+ 4	+ 4	+ 4	+ 4	+ 2	+ 3

The remaining antigens (cleaved caspase 3, nestin and SOX-2) are discretely grouped into quartiles according to proportion of specimen stained (0=No cells stained; +4=76–100% cells stained)