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6,6'-Dihydroxythiobinupharidine (DTBN) Purified from Leaves Is an Inhibitor of Protein Kinase C Catalytic Activity. | LitMetric

AI Article Synopsis

Article Abstract

Water lily ( bioactive extracts have been widely used in traditional medicine owing to their multiple applications against human ailments. Phyto-active extracts and their purified and synthetic derivatives have attracted the attention of ethnobotanists and biochemists. Here, we report that 6,6'-dihydroxythiobinupharidine (DTBN), purified from extracts of (L.) Sm. leaves, is an effective inhibitor of the kinase activity of members of the protein kinase C (PKC) family using in vitro and in silico approaches. We demonstrate that members of the conventional subfamily of PKCs, PKCα and PKCγ, were more sensitive to DTBN inhibition as compared to novel or atypical PKCs. Molecular docking analysis demonstrated the interaction of DTBN, with the kinase domain of PKCs depicting the best affinity towards conventional PKCs, in accordance with our in vitro kinase activity data. The current study reveals novel targets for DTBN activity, functioning as an inhibitor for PKCs kinase activity. Thus, this and other data indicate that DTBN modulates key cellular signal transduction pathways relevant to disease biology, including cancer.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8125885PMC
http://dx.doi.org/10.3390/molecules26092785DOI Listing

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