Screening and Isolation of Potential Anti-Inflammatory Compounds from <i>Saxifraga atrata</i> via Affinity Ultrafiltration-HPLC and Multi-Target Molecular Docking Analyses

In this study, a 100 g sample of <i>Saxifraga atrata</i> was processed to separate 1.3 g of 11-O-(4′-O-methylgalloyl)-bergenin (Fr1) after 1 cycle of MCI GEL<sup>®</sup> CHP20P medium pressure liquid chromatography using methanol/water. Subsequently, COX-2 affinity ultrafiltr...

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Main Authors: Gang Li, Yan Fang, Yonggui Ma, Yangzom Dawa, Qilan Wang, Jing Gan, Jun Dang
Format: Article
Language:English
Published: MDPI AG 2022-06-01
Series:Nutrients
Subjects:
Online Access:https://www.mdpi.com/2072-6643/14/12/2405
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author Gang Li
Yan Fang
Yonggui Ma
Yangzom Dawa
Qilan Wang
Jing Gan
Jun Dang
author_facet Gang Li
Yan Fang
Yonggui Ma
Yangzom Dawa
Qilan Wang
Jing Gan
Jun Dang
author_sort Gang Li
collection DOAJ
description In this study, a 100 g sample of <i>Saxifraga atrata</i> was processed to separate 1.3 g of 11-O-(4′-O-methylgalloyl)-bergenin (Fr1) after 1 cycle of MCI GEL<sup>®</sup> CHP20P medium pressure liquid chromatography using methanol/water. Subsequently, COX-2 affinity ultrafiltration coupled with reversed-phase liquid chromatography was successfully used to screen for potential COX-2 ligands in this target fraction (Fr1). After 20 reversed-phase liquid chromatography runs, 74.1 mg of >99% pure 11-O-(4′-O-methylgalloyl)-bergenin (Fr11) was obtained. In addition, the anti-inflammatory activity of 11-O-(4′-O-methylgalloyl)-bergenin was further validated through molecular docking analyses which suggested it was capable of binding strongly to ALOX15, iNOS, ERBB2, SELE, and NF-κB. As such, the AA metabolism, MAPK, and NF-κB signaling pathways were hypothesized to be the main pathways through which 11-O-(4′-O-methylgalloyl)-bergenin regulates inflammatory responses, potentially functioning by reducing pro-inflammatory cytokine production, blocking pro-inflammatory factor binding to cognate receptors and inhibiting the expression of key proteins. In summary, affinity ultrafiltration-HPLC coupling technology can rapidly screen for multi-target bioactive components and when combined with molecular docking analyses, this approach can further elucidate the pharmacological mechanisms of action for these compounds, providing valuable information to guide the further development of new multi-target drugs derived from natural products.
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spelling doaj.art-bddbde61061b4ca3b2796750ef97d4c82023-11-23T18:20:33ZengMDPI AGNutrients2072-66432022-06-011412240510.3390/nu14122405Screening and Isolation of Potential Anti-Inflammatory Compounds from <i>Saxifraga atrata</i> via Affinity Ultrafiltration-HPLC and Multi-Target Molecular Docking AnalysesGang Li0Yan Fang1Yonggui Ma2Yangzom Dawa3Qilan Wang4Jing Gan5Jun Dang6Center for Mitochondria and Healthy Aging, College of Life Sciences, Yantai University, Yantai 264005, ChinaCenter for Mitochondria and Healthy Aging, College of Life Sciences, Yantai University, Yantai 264005, ChinaKey Laboratory of Medicinal Animal and Plant Resources of Qinghai-Tibetan Plateau in Qinghai Province, College of Life Science, Qinghai Normal University, Xining 810001, ChinaKey Laboratory of Medicinal Animal and Plant Resources of Qinghai-Tibetan Plateau in Qinghai Province, College of Life Science, Qinghai Normal University, Xining 810001, ChinaQinghai Provincial Key Laboratory of Tibetan Medicine Research, Key Laboratory of Tibetan Medicine Research, Chinese Academy of Sciences, Northwest Institute of Plateau Biology, Xining 810001, ChinaCenter for Mitochondria and Healthy Aging, College of Life Sciences, Yantai University, Yantai 264005, ChinaQinghai Provincial Key Laboratory of Tibetan Medicine Research, Key Laboratory of Tibetan Medicine Research, Chinese Academy of Sciences, Northwest Institute of Plateau Biology, Xining 810001, ChinaIn this study, a 100 g sample of <i>Saxifraga atrata</i> was processed to separate 1.3 g of 11-O-(4′-O-methylgalloyl)-bergenin (Fr1) after 1 cycle of MCI GEL<sup>®</sup> CHP20P medium pressure liquid chromatography using methanol/water. Subsequently, COX-2 affinity ultrafiltration coupled with reversed-phase liquid chromatography was successfully used to screen for potential COX-2 ligands in this target fraction (Fr1). After 20 reversed-phase liquid chromatography runs, 74.1 mg of >99% pure 11-O-(4′-O-methylgalloyl)-bergenin (Fr11) was obtained. In addition, the anti-inflammatory activity of 11-O-(4′-O-methylgalloyl)-bergenin was further validated through molecular docking analyses which suggested it was capable of binding strongly to ALOX15, iNOS, ERBB2, SELE, and NF-κB. As such, the AA metabolism, MAPK, and NF-κB signaling pathways were hypothesized to be the main pathways through which 11-O-(4′-O-methylgalloyl)-bergenin regulates inflammatory responses, potentially functioning by reducing pro-inflammatory cytokine production, blocking pro-inflammatory factor binding to cognate receptors and inhibiting the expression of key proteins. In summary, affinity ultrafiltration-HPLC coupling technology can rapidly screen for multi-target bioactive components and when combined with molecular docking analyses, this approach can further elucidate the pharmacological mechanisms of action for these compounds, providing valuable information to guide the further development of new multi-target drugs derived from natural products.https://www.mdpi.com/2072-6643/14/12/2405affinity ultrafiltrationmolecular dockingpreparative isolation<i>Saxifraga atrata</i>11-O-(4′-O-methylgalloyl)-bergenin
spellingShingle Gang Li
Yan Fang
Yonggui Ma
Yangzom Dawa
Qilan Wang
Jing Gan
Jun Dang
Screening and Isolation of Potential Anti-Inflammatory Compounds from <i>Saxifraga atrata</i> via Affinity Ultrafiltration-HPLC and Multi-Target Molecular Docking Analyses
Nutrients
affinity ultrafiltration
molecular docking
preparative isolation
<i>Saxifraga atrata</i>
11-O-(4′-O-methylgalloyl)-bergenin
title Screening and Isolation of Potential Anti-Inflammatory Compounds from <i>Saxifraga atrata</i> via Affinity Ultrafiltration-HPLC and Multi-Target Molecular Docking Analyses
title_full Screening and Isolation of Potential Anti-Inflammatory Compounds from <i>Saxifraga atrata</i> via Affinity Ultrafiltration-HPLC and Multi-Target Molecular Docking Analyses
title_fullStr Screening and Isolation of Potential Anti-Inflammatory Compounds from <i>Saxifraga atrata</i> via Affinity Ultrafiltration-HPLC and Multi-Target Molecular Docking Analyses
title_full_unstemmed Screening and Isolation of Potential Anti-Inflammatory Compounds from <i>Saxifraga atrata</i> via Affinity Ultrafiltration-HPLC and Multi-Target Molecular Docking Analyses
title_short Screening and Isolation of Potential Anti-Inflammatory Compounds from <i>Saxifraga atrata</i> via Affinity Ultrafiltration-HPLC and Multi-Target Molecular Docking Analyses
title_sort screening and isolation of potential anti inflammatory compounds from i saxifraga atrata i via affinity ultrafiltration hplc and multi target molecular docking analyses
topic affinity ultrafiltration
molecular docking
preparative isolation
<i>Saxifraga atrata</i>
11-O-(4′-O-methylgalloyl)-bergenin
url https://www.mdpi.com/2072-6643/14/12/2405
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