TB-500 is a synthesised peptide, essentially a short-chain version of the naturally occurring Thymosin Beta-4.

Gastrin-releasing peptide is a regulatory human peptide that elicits gastrin release and regulates gastric acid secretion and enteric motor function. The post-ganglionic fibers of the vagus nerve that innervate the G cells of the stomach release GRP, which stimulates the G cells to release gastrin.

Ainsliadimer A, a sesquiterpene lactone dimer from Ainsliaea macrocephala, has antitumour activity and induces cell death in various cancer cells.