Dr Guerra explains how  there is a cumulative balance between S1P and Ceramide will influence apoptosis and change the regulation of autophagy by the complex interplay between mTOR, beclin, and Bcl-2 where S1P-dependent autophagy is thought to be a homeostatic, pro-survival response involved in the clearance of intra-cellular debris.Describing these systems within the context of inflammation and pathobiochemistry will be obtained.