The modified reduced T-LGL network. The 6 node reduced network is adapted from . Red dashed lines indicate negative regulation while solid black lines indicate positive regulation. The bold line represents a possible modification that eliminates the Apoptosis = OFF (cancerous) steady state. The full names corresponding to the abbreviated node labels are (see ): S1P, Sphingosine-1-phosphate; DISC, death inducing signaling complex; FLIP, CASP8 and FADD-like apoptosis regulator.