Selected xanthones from the mangosteen fruit target the kinase CDK2

The mangosteen fruit has been used historically for its medicinal properties in southeast Asia for upset stomach, inflammation and skin irritations.

This fruit is unique among all fruits from around the world because it contains a class of polyphenols called xanthones. 

The most abundant xanthone in the mangosteen is alpha-mangostin, however, there are other xanthones of interest.

We have been isolating additional xanthones in our group which include β-mangostin, γ-mangostin, gartanin, 8-desoxygartanin, garcinone C and garcinone D, and 3-isomangostin. 

The approach in our research group has been to use these different xanthones to understand how they inhibit CDK2 (cyclin dependent kinase 2).

Our recent findings published in Natural Products Research reveals that these xanthones were able to inhibit cancer cell growth in cell culture models

In addition, we also found that several of these xanthones were able to inhibit the activity of CDK2, an important protein involved in promoting cancer cell growth. 

Reference:  Nauman MC, Tocmo R, Vemu B, Veenstra JP, Johnson JJ. Inhibition of CDK2/CyclinE1 by xanthones from the mangosteen (Garcinia mangostana): a structure-activity relationship study. Nat Prod Res. 2020 doi: 10.1080/14786419.2020.1777413.

About the author

Dr. Johnson received his PharmD and PhD at the University of Wisconsin where he also completed a clinical research fellowship evaluating phytochemicals and botanical extracts. He is an associate professor and licensed pharmacist he offers a unique perspective on the most current scientific literature related to the health and nutrition. His research program is active and has led to more than 50 publications and published abstracts related to the health promoting properties of natural products, phytochemicals and plant extracts. He has presented some of his research findings at international scientific meetings in the US, Italy, Austria, Israel, France, China, Philippines and Turkey.