Two New Isoprenoid Flavonoids from <i>Sophora flavescens</i> with Antioxidant and Cytotoxic Activities

<i>Sophora flavescens</i> is a regularly used traditional Chinese medicine. In an attempt to discover adequate active agents, the isoprenoid flavonoids from <i>S. flavescens</i> were further investigated. In this work, two new compounds (<b>1</b>–<b>2</b&...

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Main Authors: Jingjing Li, Yan Lin, Lei He, Rongxiu Ou, Tao Chen, Xu Zhang, Qirui Li, Zhu Zeng, Qingde Long
Format: Article
Language:English
Published: MDPI AG 2021-11-01
Series:Molecules
Subjects:
Online Access:https://www.mdpi.com/1420-3049/26/23/7228
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author Jingjing Li
Yan Lin
Lei He
Rongxiu Ou
Tao Chen
Xu Zhang
Qirui Li
Zhu Zeng
Qingde Long
author_facet Jingjing Li
Yan Lin
Lei He
Rongxiu Ou
Tao Chen
Xu Zhang
Qirui Li
Zhu Zeng
Qingde Long
author_sort Jingjing Li
collection DOAJ
description <i>Sophora flavescens</i> is a regularly used traditional Chinese medicine. In an attempt to discover adequate active agents, the isoprenoid flavonoids from <i>S. flavescens</i> were further investigated. In this work, two new compounds (<b>1</b>–<b>2</b>, kurarinol A-B) together with 26 known ones (<b>3</b>–<b>28</b>) were isolated and elucidated on the basis of extensive NMR, UV and MS analyses. Furthermore, the antioxidant activity of all constituents was assessed through ABTS, PTIO and DPPH methodologies and also were evaluated for cytotoxic activity by three tumor cell lines (HepG2, A549 and MCF7) and one human normal cell line (LO2 cells). As a result, a multitude of components revealed significant inhibitory activity. In particular, compound <b>1</b>–<b>2</b> (kurarinol A-B), two new flavanonols derivatives, exhibited the most potent ABTS inhibitory activity with IC<sub>50</sub> of 1.21 µg/mL and 1.81 µg/mL, respectively. Meanwhile, the new compound <b>1</b> demonstrated remarkable cytotoxicity against three cancer cells lines with IC<sub>50</sub> values ranging from 7.50–10.55 μM but showed little effect on the normal cell. The two new isoprenoid flavonoids could be promising antioxidant and anti-tumor nature agents.
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spelling doaj.art-4056d7c22d53473ba6ed79df2311c3e12023-11-23T02:49:29ZengMDPI AGMolecules1420-30492021-11-012623722810.3390/molecules26237228Two New Isoprenoid Flavonoids from <i>Sophora flavescens</i> with Antioxidant and Cytotoxic ActivitiesJingjing Li0Yan Lin1Lei He2Rongxiu Ou3Tao Chen4Xu Zhang5Qirui Li6Zhu Zeng7Qingde Long8Guizhou Provincial Key Laboratory of Pharmaceutics, Guiyang 550025, ChinaGuizhou Provincial Key Laboratory of Pharmaceutics, Guiyang 550025, ChinaGuizhou Provincial Key Laboratory of Pharmaceutics, Guiyang 550025, ChinaGuizhou Provincial Key Laboratory of Pharmaceutics, Guiyang 550025, ChinaGuizhou Provincial Key Laboratory of Pharmaceutics, Guiyang 550025, ChinaGuizhou Provincial Key Laboratory of Pharmaceutics, Guiyang 550025, ChinaGuizhou Provincial Key Laboratory of Pharmaceutics, Guiyang 550025, ChinaGuizhou Provincial Key Laboratory of Pharmaceutics, Guiyang 550025, ChinaGuizhou Provincial Key Laboratory of Pharmaceutics, Guiyang 550025, China<i>Sophora flavescens</i> is a regularly used traditional Chinese medicine. In an attempt to discover adequate active agents, the isoprenoid flavonoids from <i>S. flavescens</i> were further investigated. In this work, two new compounds (<b>1</b>–<b>2</b>, kurarinol A-B) together with 26 known ones (<b>3</b>–<b>28</b>) were isolated and elucidated on the basis of extensive NMR, UV and MS analyses. Furthermore, the antioxidant activity of all constituents was assessed through ABTS, PTIO and DPPH methodologies and also were evaluated for cytotoxic activity by three tumor cell lines (HepG2, A549 and MCF7) and one human normal cell line (LO2 cells). As a result, a multitude of components revealed significant inhibitory activity. In particular, compound <b>1</b>–<b>2</b> (kurarinol A-B), two new flavanonols derivatives, exhibited the most potent ABTS inhibitory activity with IC<sub>50</sub> of 1.21 µg/mL and 1.81 µg/mL, respectively. Meanwhile, the new compound <b>1</b> demonstrated remarkable cytotoxicity against three cancer cells lines with IC<sub>50</sub> values ranging from 7.50–10.55 μM but showed little effect on the normal cell. The two new isoprenoid flavonoids could be promising antioxidant and anti-tumor nature agents.https://www.mdpi.com/1420-3049/26/23/7228<i>Sophora flavescens</i>isoprenoid flavonoidsantioxidant activitycytotoxicity
spellingShingle Jingjing Li
Yan Lin
Lei He
Rongxiu Ou
Tao Chen
Xu Zhang
Qirui Li
Zhu Zeng
Qingde Long
Two New Isoprenoid Flavonoids from <i>Sophora flavescens</i> with Antioxidant and Cytotoxic Activities
Molecules
<i>Sophora flavescens</i>
isoprenoid flavonoids
antioxidant activity
cytotoxicity
title Two New Isoprenoid Flavonoids from <i>Sophora flavescens</i> with Antioxidant and Cytotoxic Activities
title_full Two New Isoprenoid Flavonoids from <i>Sophora flavescens</i> with Antioxidant and Cytotoxic Activities
title_fullStr Two New Isoprenoid Flavonoids from <i>Sophora flavescens</i> with Antioxidant and Cytotoxic Activities
title_full_unstemmed Two New Isoprenoid Flavonoids from <i>Sophora flavescens</i> with Antioxidant and Cytotoxic Activities
title_short Two New Isoprenoid Flavonoids from <i>Sophora flavescens</i> with Antioxidant and Cytotoxic Activities
title_sort two new isoprenoid flavonoids from i sophora flavescens i with antioxidant and cytotoxic activities
topic <i>Sophora flavescens</i>
isoprenoid flavonoids
antioxidant activity
cytotoxicity
url https://www.mdpi.com/1420-3049/26/23/7228
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