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Open AccessArticle

4-Hydroxyderricin Isolated from the Sap of Angelica keiskei Koidzumi: Evaluation of Its Inhibitory Activity towards Dipeptidyl Peptidase-IV

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Pharmaceutical Biology Research Group, School of Pharmacy, Bandung Institute of Technology, Jl. Ganesha 10, Bandung 40132, Indonesia
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Department of Pharmaceutical Biology, Indonesian School of Pharmacy (Sekolah Tinggi Farmasi Indonesia), Jl. Soekarno-Hatta No 354, Bandung 40266, Indonesia
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Department of Pharmacology and Toxicology, School of Pharmacy, Bandung Institute of Technology, Jl. Ganesha 10, Bandung 40132, Indonesia
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Department of Pharmacology and Clinical Pharmacy, Faculty of Pharmacy, Universitas Padjadjaran, Jl. Raya Bandung-Sumedang km. 21, West Java 45363, Indonesia
*
Author to whom correspondence should be addressed.
Sci. Pharm. 2019, 87(4), 30; https://doi.org/10.3390/scipharm87040030
Received: 29 September 2019 / Revised: 8 November 2019 / Accepted: 11 November 2019 / Published: 15 November 2019
Angelica keiskei sap is used as a blood-sugar reducer in Indonesia, however its molecular mechanism has not yet been explored. 4-hydroxyderricin (4-HD) is one of the major components extracted from A. keiskei sap. The aim of this work was to isolate 4-HD from the sap of A. keiskei planted in Lombok, Indonesia, and to study in silico and in vitro mechanisms against dipeptidyl peptidase-IV (DPP-IV). The dried sap was submitted to liquid–liquid extraction using solvents with different polarity. Further purification processing was conducted using gradient elution column chromatography. The isolated compound was a yellowish powder, m/z 339.2215 [M + H]+, which was confirmed as 4-HD. Sitagliptin, a DPP-IV inhibitor, was employed as the positive control for both the in silico and in vitro studies. It was indicated that 4-HD interacts with Glu206 and Phe357, important amino acid residues in the DPP-IV binding pocket. These interactions are similar to that of sitagliptin. The affinity of 4-HD (inhibition constant (Ki) = 3.99 μM) to DPP-IV is lower than that of sitagliptin (inhibition constant (Ki) = 0.17 μM). Furthermore, in vitro study showed that 4-HD inhibits DPP-IV (IC50 = 81.44 μM) weaker than for sitagliptin (IC50 = 0.87 μM). We concluded that 4- HD might have potential in inhibiting DPP-IV. However, by considering the polar interaction of sitagliptin with DPP-IV, a further structure modification of 4-HD, e.g., by introducing a polar moiety such as a hydroxyl group, might be needed to obtain stronger activity as a DPP-IV inhibitor. View Full-Text
Keywords: Angelica keiskei sap; blood-sugar reducer; chalcones; 4-hydroxyderricin Angelica keiskei sap; blood-sugar reducer; chalcones; 4-hydroxyderricin
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Aulifa, D.L.; Adnyana, I.K.; Levita, J.; Sukrasno, S. 4-Hydroxyderricin Isolated from the Sap of Angelica keiskei Koidzumi: Evaluation of Its Inhibitory Activity towards Dipeptidyl Peptidase-IV. Sci. Pharm. 2019, 87, 30.

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