[Leu144,Arg147]-PLP (139-151) is a mutant peptide fragment of myelin proteolipid protein (PLP), with the tryptophan and histidine at positions 144 and 147 respectively replaced by leucine and arginine. [Leu144,Arg147]-PLP (139-151) also serves as a T cell receptor (TCR) antagonist for encephalitogenic Th1 clones, blocking their activation in vitro. Furthermore, [Leu144,Arg147]-PLP (139-151) can inhibit the development of experimental autoimmune encephalomyelitis (EAE).

Metaldehyde (Metacetaldehyde) is an agriculturally used molluscicide that induces DNA fragmentation in cells.

Isophorone (355-trimethyl-2-cyclohexen-1-one) a monoterpene and the structurally related 18-cineole and camphor have demonstrated a protective effect against cancer biological activity against a variety of microorganisms and anti-oxidant properties.