Anti-Inflammatory Activities of the Ethanol Extract of <i>Prasiola japonica</i>, an Edible Freshwater Green Algae, and Its Various Solvent Fractions in LPS-Induced Macrophages and Carrageenan-Induced Paw Edema via the AP-1 Pathway

<i>Prasiola japonica</i> possesses several biological activities. However, reports on the anti-inflammatory activities and molecular mechanisms of its different solvent fractions remain limited. In this study, we investigated the potential anti-inflammatory activities of <i>P. japo...

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Main Authors: Laily Rahmawati, Sang Hee Park, Dong Seon Kim, Hwa Pyoung Lee, Nur Aziz, Chae Young Lee, Seung A Kim, Seok Gu Jang, Dong Sam Kim, Jae Youl Cho
Format: Article
Language:English
Published: MDPI AG 2021-12-01
Series:Molecules
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Online Access:https://www.mdpi.com/1420-3049/27/1/194
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author Laily Rahmawati
Sang Hee Park
Dong Seon Kim
Hwa Pyoung Lee
Nur Aziz
Chae Young Lee
Seung A Kim
Seok Gu Jang
Dong Sam Kim
Jae Youl Cho
author_facet Laily Rahmawati
Sang Hee Park
Dong Seon Kim
Hwa Pyoung Lee
Nur Aziz
Chae Young Lee
Seung A Kim
Seok Gu Jang
Dong Sam Kim
Jae Youl Cho
author_sort Laily Rahmawati
collection DOAJ
description <i>Prasiola japonica</i> possesses several biological activities. However, reports on the anti-inflammatory activities and molecular mechanisms of its different solvent fractions remain limited. In this study, we investigated the potential anti-inflammatory activities of <i>P. japonica</i> ethanol extract (Pj-EE) and four solvent fractions of Pj-EE made with hexane (Pj-EE-HF), chloroform (Pj-EE-CF), butanol (Pj-EE-BF), or water (Pj-EE-WF) in both in vitro (LPS-induced macrophage-like RAW264.7 cells) and in vivo (carrageenan-induced acute paw edema mouse models) experiments. The most active solvent fraction was selected for further analysis. Various in vitro and in vivo assessments, including nitric oxide (NO), cytokines, luciferase assays, real-time polymerase chain reactions, and immunoblotting analyses were performed to evaluate the underlying mechanisms. In addition, the phytochemical constituents were characterized by Liquid chromatography-tandem mass spectrometry. In in vitro studies, the highest inhibition of NO production was observed in Pj-EE-CF. Further examination revealed that Pj-EE-CF decreased the expression of inflammation-related cytokines in LPS-induced RAW264.7 cells and suppressed subsequent AP-1-luciferase activity by inhibition of phosphorylation events in the AP-1 signaling pathway. Pj-EE-CF treatment also demonstrated the strongest reduction in thickness and volume of carrageenan-induced paw edema, while Pj-EE-BF showed the lowest activity. Furthermore, Pj-EE-CF also reduced gene expression and cytokines production in tissue lysates of carrageenan-induced paw edema. These findings support and validate the evidence that Pj-EE, and especially Pj-EE-CF, could be a good natural source for an anti-inflammatory agent that targets the AP1 pathway.
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spelling doaj.art-6d53f90cf45a4473ae18a6f577e595752023-11-23T11:58:04ZengMDPI AGMolecules1420-30492021-12-0127119410.3390/molecules27010194Anti-Inflammatory Activities of the Ethanol Extract of <i>Prasiola japonica</i>, an Edible Freshwater Green Algae, and Its Various Solvent Fractions in LPS-Induced Macrophages and Carrageenan-Induced Paw Edema via the AP-1 PathwayLaily Rahmawati0Sang Hee Park1Dong Seon Kim2Hwa Pyoung Lee3Nur Aziz4Chae Young Lee5Seung A Kim6Seok Gu Jang7Dong Sam Kim8Jae Youl Cho9Department of Integrative Biotechnology, Sungkyunkwan University, Suwon 16419, KoreaDepartment of Biocosmetics, Sungkyunkwan University, Suwon 16419, KoreaDepartment of Integrative Biotechnology, Sungkyunkwan University, Suwon 16419, KoreaDepartment of Integrative Biotechnology, Sungkyunkwan University, Suwon 16419, KoreaDepartment of Integrative Biotechnology, Sungkyunkwan University, Suwon 16419, KoreaDepartment of Integrative Biotechnology, Sungkyunkwan University, Suwon 16419, KoreaDepartment of Integrative Biotechnology, Sungkyunkwan University, Suwon 16419, KoreaResearch and Business Foundation, Sungkyunkwan University, Suwon 16419, KoreaResearch and Business Foundation, Sungkyunkwan University, Suwon 16419, KoreaDepartment of Integrative Biotechnology, Sungkyunkwan University, Suwon 16419, Korea<i>Prasiola japonica</i> possesses several biological activities. However, reports on the anti-inflammatory activities and molecular mechanisms of its different solvent fractions remain limited. In this study, we investigated the potential anti-inflammatory activities of <i>P. japonica</i> ethanol extract (Pj-EE) and four solvent fractions of Pj-EE made with hexane (Pj-EE-HF), chloroform (Pj-EE-CF), butanol (Pj-EE-BF), or water (Pj-EE-WF) in both in vitro (LPS-induced macrophage-like RAW264.7 cells) and in vivo (carrageenan-induced acute paw edema mouse models) experiments. The most active solvent fraction was selected for further analysis. Various in vitro and in vivo assessments, including nitric oxide (NO), cytokines, luciferase assays, real-time polymerase chain reactions, and immunoblotting analyses were performed to evaluate the underlying mechanisms. In addition, the phytochemical constituents were characterized by Liquid chromatography-tandem mass spectrometry. In in vitro studies, the highest inhibition of NO production was observed in Pj-EE-CF. Further examination revealed that Pj-EE-CF decreased the expression of inflammation-related cytokines in LPS-induced RAW264.7 cells and suppressed subsequent AP-1-luciferase activity by inhibition of phosphorylation events in the AP-1 signaling pathway. Pj-EE-CF treatment also demonstrated the strongest reduction in thickness and volume of carrageenan-induced paw edema, while Pj-EE-BF showed the lowest activity. Furthermore, Pj-EE-CF also reduced gene expression and cytokines production in tissue lysates of carrageenan-induced paw edema. These findings support and validate the evidence that Pj-EE, and especially Pj-EE-CF, could be a good natural source for an anti-inflammatory agent that targets the AP1 pathway.https://www.mdpi.com/1420-3049/27/1/194<i>Prasiola japonica</i>anti-inflammatorypaw edemaAP-1 pathway
spellingShingle Laily Rahmawati
Sang Hee Park
Dong Seon Kim
Hwa Pyoung Lee
Nur Aziz
Chae Young Lee
Seung A Kim
Seok Gu Jang
Dong Sam Kim
Jae Youl Cho
Anti-Inflammatory Activities of the Ethanol Extract of <i>Prasiola japonica</i>, an Edible Freshwater Green Algae, and Its Various Solvent Fractions in LPS-Induced Macrophages and Carrageenan-Induced Paw Edema via the AP-1 Pathway
Molecules
<i>Prasiola japonica</i>
anti-inflammatory
paw edema
AP-1 pathway
title Anti-Inflammatory Activities of the Ethanol Extract of <i>Prasiola japonica</i>, an Edible Freshwater Green Algae, and Its Various Solvent Fractions in LPS-Induced Macrophages and Carrageenan-Induced Paw Edema via the AP-1 Pathway
title_full Anti-Inflammatory Activities of the Ethanol Extract of <i>Prasiola japonica</i>, an Edible Freshwater Green Algae, and Its Various Solvent Fractions in LPS-Induced Macrophages and Carrageenan-Induced Paw Edema via the AP-1 Pathway
title_fullStr Anti-Inflammatory Activities of the Ethanol Extract of <i>Prasiola japonica</i>, an Edible Freshwater Green Algae, and Its Various Solvent Fractions in LPS-Induced Macrophages and Carrageenan-Induced Paw Edema via the AP-1 Pathway
title_full_unstemmed Anti-Inflammatory Activities of the Ethanol Extract of <i>Prasiola japonica</i>, an Edible Freshwater Green Algae, and Its Various Solvent Fractions in LPS-Induced Macrophages and Carrageenan-Induced Paw Edema via the AP-1 Pathway
title_short Anti-Inflammatory Activities of the Ethanol Extract of <i>Prasiola japonica</i>, an Edible Freshwater Green Algae, and Its Various Solvent Fractions in LPS-Induced Macrophages and Carrageenan-Induced Paw Edema via the AP-1 Pathway
title_sort anti inflammatory activities of the ethanol extract of i prasiola japonica i an edible freshwater green algae and its various solvent fractions in lps induced macrophages and carrageenan induced paw edema via the ap 1 pathway
topic <i>Prasiola japonica</i>
anti-inflammatory
paw edema
AP-1 pathway
url https://www.mdpi.com/1420-3049/27/1/194
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