A Link Between Chemical Structure and Biological Activity in Triterpenoids

Background: Plants that are rich in triterpenoid compounds possess various biological activities and are reported in many scientific works. Triterpenoids, because of their broad sources, wide variety, high medicinal value, and anti-tumor properties, have drawn great attention from scientists. However, the lack of approach to understand the link between their chemical structures and biological activities has limited the fundamental comprehension of these compounds in cancer therapy. Objectives: The aim of the study is to summarize the list of plants with triterpenoids and their derivatives that are a source of potential novel therapeutic anti-cancer agents by interpreting the network of anti-cancer activity and the structures of triterpenoids and their derivatives. Methods: This work focuses on analyzing relevant patents and references that detail the structure of triterpenoids and their derivatives for the treatment of tumors. Results: Pentacyclic triterpenoid plays a more important role in improving the autophagic signaling pathways of cancer cells compared to tetracyclic triterpenoid. Conclusion: The heterogenous skeleton structure of triterpenoids impairs programmed cell death signaling pathways in various cancers.