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Src Is a Prime Target Inhibited by Celtis choseniana Methanol Extract in Its Anti-Inflammatory Action. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2018; 2018:3909038. [PMID: 29725354 PMCID: PMC5872597 DOI: 10.1155/2018/3909038] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Revised: 12/10/2017] [Accepted: 12/18/2017] [Indexed: 12/31/2022]
Abstract
Celtis choseniana is the traditional plant used at Korea as a herbal medicine to ameliorate inflammatory responses. Although Celtis choseniana has been traditionally used as a herbal medicine at Korea, no systemic research has been conducted on its anti-inflammatory activity. Therefore, the present study explored an anti-inflammatory effect and its underlying molecular mechanism using Celtis choseniana methanol extract (Cc-ME) in macrophage-mediated inflammatory responses. In vitro anti-inflammatory activity of Cc-ME was evaluated using RAW264.7 cells and peritoneal macrophages stimulated by lipopolysaccharide (LPS), pam3CSK4 (Pam3), or poly(I:C). In vivo anti-inflammatory activity of Cc-ME was investigated using acute inflammatory disease mouse models, such as LPS-induced peritonitis and HCl/EtOH-induced gastritis. The molecular mechanism of Cc-ME-mediated anti-inflammatory activity was examined by Western blot analysis and immunoprecipitation using whole cell and nuclear fraction prepared from the LPS-stimulated RAW264.7 cells and HEK293 cells. Cc-ME inhibited NO production and mRNA expression of inducible nitric oxide synthase (iNOS), cyclooxygenase (COX-2), and tumor necrosis factor-alpha (TNF-α) in the RAW264.7 cells and peritoneal macrophages induced by LPS, pam3, or poly(I:C) without cytotoxicity. High-performance liquid chromatography (HPLC) analysis showed that Cc-ME contained anti-inflammatory flavonoids quercetin, luteolin, and kaempferol. Among those, the content of luteolin, which showed an inhibitory effect on NO production, was highest. Cc-ME suppressed the NF-κB signaling pathway by targeting Src and interrupting molecular interactions between Src and p85, its downstream kinase. Moreover, Cc-ME ameliorated the morphological finding of peritonitis and gastritis in the mouse disease models. Therefore, these results suggest that Cc-ME exerted in vitro and in vivo anti-inflammatory activity in LPS-stimulated macrophages and mouse models of acute inflammatory diseases. This anti-inflammatory activity of Cc-ME was dominantly mediated by targeting Src in NF-κB signaling pathway during macrophage-mediated inflammatory responses.
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Park G, Kim E, Son YJ, Yoon DH, Sung GH, Aravinthan A, Park YC, Kim JH, Cho JY. Anti-inflammatory effect of torilidis fructus ethanol extract through inhibition of Src. PHARMACEUTICAL BIOLOGY 2017; 55:2074-2082. [PMID: 28832235 PMCID: PMC6130681 DOI: 10.1080/13880209.2017.1362011] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
CONTEXT Torilidis fructus, fruits of Torilis japonica Decadolle (Umbelliferae), is a medicinal herb traditionally used as a pesticide, an astrictive, or a medicine for various inflammatory diseases. OBJECTIVES Due to the lack of pharmacological studies on this herbal medicine, we explored the inhibitory activity of torilidis fructus on the macrophage-mediated inflammatory response using its ethanol extract (Tf-EE). MATERIAL AND METHODS The Griess assay and prostaglandin (PGE2) ELISA assay were conducted with Tf-EE (0-75 µg/mL) and LPS (1 µg/mL) treated RAW264.7 cells in cultured media. Tf-EE pretreated RAW264.7 cells were incubated with LPS for 6 h and semi-quantitative PCR was performed. Reporter gene assays, overexpression of target enzymes and immunoblotting were performed on macrophages to determine the molecular targets of Tf-EE. RESULTS Tf-EE markedly suppressed the inflammatory response of macrophages, such as lipopolysaccharide (LPS)-induced nitric oxide (NO) and PGE2 production with IC50 values of 35.66 and 62.47 µg/mL, respectively. It was also found that Tf-EE reduced the expression of inducible NO synthase (iNOS) and cyclooxygenase (COX)-2 by 80%. Nuclear translocation and activation of nuclear factor (NF)-κB (p65 and p50) were declined by 60% and 30% respectively, and their regulatory events including the phosphorylation of AKT, IκBα, Src, and the formation of complexes between Src and p-p85 were also recognized to be diminished. CONCLUSIONS The signalling events managed by Src and p85 complex seemed to be critically involved in Tf-EE-mediated anti-inflammatory response. This might suggest that Tf-EE exhibited anti-inflammatory effects through Src-targeted inhibition of NF-κB.
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Affiliation(s)
- Gyubyung Park
- Gyeonggi Science High School for the Gifted, Suwon, Republic of Korea
| | - Eunji Kim
- Department of Genetic Engineering, Sungkyunkwan University, Suwon, Republic of Korea
| | - Young-Jin Son
- Department of Pharmacy, Sunchon National University, Suncheon, Korea
| | - Deok Hyo Yoon
- Institute for Bio-Medical Convergence, International St. Mary's Hospital and College of Medicine, Catholic Kwandong University Incheon, Incheon, Republic of Korea
| | - Gi-Ho Sung
- Institute for Bio-Medical Convergence, International St. Mary's Hospital and College of Medicine, Catholic Kwandong University Incheon, Incheon, Republic of Korea
| | - Adithan Aravinthan
- College of Veterinary Medicine, Chonbuk National University, Iksan, Republic of Korea
| | - Yung Chul Park
- College of Forest and Environmental Sciences, Kangwon National University, Chuncheon, Republic of Korea
- Yung Chul ParkCollege of Forest and Environmental Sciences, Kangwon National University, Chuncheon24341, Republic of Korea
| | - Jong-Hoon Kim
- College of Veterinary Medicine, Chonbuk National University, Iksan, Republic of Korea
- Jong-Hoon KimCollege of Veterinary Medicine, Chonbuk National University, Iksan54596, Republic of Korea
| | - Jae Youl Cho
- Department of Genetic Engineering, Sungkyunkwan University, Suwon, Republic of Korea
- CONTACT: Jae Youl ChoDepartment of Genetic Engineering, Sungkyunkwan University, Suwon16419, Republic of Korea
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Yi YS, Kim MY, Cho JY. JS-III-49, a hydroquinone derivative, exerts anti-inflammatory activity by targeting Akt and p38. THE KOREAN JOURNAL OF PHYSIOLOGY & PHARMACOLOGY : OFFICIAL JOURNAL OF THE KOREAN PHYSIOLOGICAL SOCIETY AND THE KOREAN SOCIETY OF PHARMACOLOGY 2017; 21:345-352. [PMID: 28461777 PMCID: PMC5409119 DOI: 10.4196/kjpp.2017.21.3.345] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/18/2016] [Revised: 01/29/2017] [Accepted: 02/03/2017] [Indexed: 12/25/2022]
Abstract
Since previous studies have reported that hydroquinone (HQ) exerted immunosuppressive and anti-inflammatory activity, various HQ derivatives have been synthesized and their biological activities investigated. In this study, we explored the anti-inflammatory activity of JS-III-49, a novel HQ derivative, in macrophage-mediated inflammatory responses. JS-III-49 suppressed the production of the inflammatory mediators nitric oxide (NO) and prostaglandin E2 (PGE2) and down-regulated the mRNA expression of the inflammatory enzymes cyclooxygenase-2 (COX-2) and inducible nitric oxide synthase (iNOS) as well as the expression of the pro-inflammatory cytokines interleukin-6 (IL-6) and IL-1b without cytotoxicity in LPS-stimulated RAW264.7 cells. JS-III-49 inhibited nuclear translocation of the NF-kB transcription factors p65 and p50 by directly targeting Akt, an upstream kinase of the NF-kB pathway, in LPS-stimulated RAW264.7 cells. However, JS-III-49 did not directly inhibit the kinase activities of Src and Syk, which are upstream kinases of Akt, in LPS-stimulated RAW264.7 cells. Moreover, JS-III-49 suppressed the nuclear translocation of c-Fos, one of the components of AP-1, by specifically targeting p38, an upstream mitogen-activated protein kinase (MAPK) in the AP-1 pathway in LPS-stimulated RAW264.7 cells. These results suggest that JS-III-49 plays an anti-inflammatory role in LPS-stimulated macrophages by targeting Akt and p38 in the NF-kB and AP-1 pathways, respectively.
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Affiliation(s)
- Young-Su Yi
- Department of Genetic Engineering, Sungkyunkwan University, Suwon 16419, Korea.,Department of Pharmaceutical Engineering, Cheongju University, Cheongju 28503, Korea
| | - Mi-Yeon Kim
- School of Systems Biomedical Science, Soongsil University, Seoul 06978, Korea
| | - Jae Youl Cho
- Department of Genetic Engineering, Sungkyunkwan University, Suwon 16419, Korea
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Yang WS, Kim D, Yi YS, Kim JH, Jeong HY, Hwang K, Kim JH, Park J, Cho JY. AKT-targeted anti-inflammatory activity of the methanol extract of Chrysanthemum indicum var. albescens. JOURNAL OF ETHNOPHARMACOLOGY 2017; 201:82-90. [PMID: 28274893 DOI: 10.1016/j.jep.2017.03.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Revised: 02/24/2017] [Accepted: 03/01/2017] [Indexed: 06/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Wild chrysanthemum (Chrysanthemum indicum) is one of well-known medicinal plants traditionally used in Korea and China. As a variant of wild chrysanthemum, white wild chrysanthemum (Chrysanthemum indicum var. albescens) is also ethnopharmacologically applied to treat various symptoms such as inflammatory diseases. AIM OF STUDY Although the anti-inflammatory activity of Chrysanthemum indicum has been reported, the anti-inflammatory activity and underlying molecular mechanism of white wild chrysanthemum are poorly understood. MATERIALS AND METHODS The effects of Chrysanthemum indicum var. albescens methanol extract (Civ-ME) on the production of inflammatory mediators, expression of pro-inflammatory genes, cell viability, and the activities of intracellular signaling molecules and transcription factors were investigated in lipopolysaccharide (LPS)-stimulated RAW264.7 cells. RESULTS Civ-ME suppressed the production of both nitric oxide (NO) and prostaglandin E2 (PGE2) without cytotoxicity in LPS-stimulated RAW264.7 cells. Civ-ME was found to reduce the mRNA levels of inflammatory genes such as inducible NO synthase (iNOS) and tumor necrosis factor (TNF)-α and reduced NF-κB-mediated transcriptional activation. Civ-ME inhibited the nuclear translocation of NF-κB (p65 and p50), and its upstream signaling composed of IκBα and IKKα/β. An NF-κB luciferase reporter gene assay and an in vitro kinase assay confirmed that AKT1 and AKT2 might be direct pharmacological targets of Civ-ME. In addition, luteolin was identified by HPLC analysis as the main active pharmacological components of Civ-ME. CONCLUSION Civ-ME exerts an anti-inflammatory effect by targeting AKT1 and AKT2 in the NF-κB signaling pathway in macrophage-mediated inflammatory responses.
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Affiliation(s)
- Woo Seok Yang
- Department of Genetic Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea.
| | - Donghyun Kim
- Heritage Material Research Team, Amorepacific R&D Unit, Yongin 446-729, Republic of Korea.
| | - Young-Su Yi
- Department of Pharmaceutical Engineering, Cheongju University, Cheongju 28503, Republic of Korea.
| | - Ji Hye Kim
- Department of Genetic Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea.
| | - Hye Yoon Jeong
- Department of Genetic Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea.
| | - Kyeonghwan Hwang
- Heritage Material Research Team, Amorepacific R&D Unit, Yongin 446-729, Republic of Korea.
| | - Jong-Hoon Kim
- Department of Physiology, College of Veterinary Medicine, Chonbuk National University, Iksan 54596, Republic of Korea.
| | - Junseong Park
- Heritage Material Research Team, Amorepacific R&D Unit, Yongin 446-729, Republic of Korea.
| | - Jae Youl Cho
- Department of Genetic Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea.
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Yang S, Kim Y, Jeong D, Kim JH, Kim S, Son YJ, Yoo BC, Jeong EJ, Kim TW, Lee ISH, Cho JY. Pyrrole-Derivative of Chalcone, ( E)-3-Phenyl-1-(2-Pyrrolyl)-2-Propenone, Inhibits Inflammatory Responses via Inhibition of Src, Syk, and TAK1 Kinase Activities. Biomol Ther (Seoul) 2016; 24:595-603. [PMID: 27469142 PMCID: PMC5098538 DOI: 10.4062/biomolther.2016.027] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Revised: 04/02/2016] [Accepted: 04/21/2016] [Indexed: 12/26/2022] Open
Abstract
(E)-3-Phenyl-1-(2-pyrrolyl)-2-propenone (PPP) is a pyrrole derivative of chalcone, in which the B-ring of chalcone linked to β-carbon is replaced by pyrrole group. While pyrrole has been studied for possible Src inhibition activity, chalcone, especially the substituents on the B-ring, has shown pharmaceutical, anti-inflammatory, and anti-oxidant properties via inhibition of NF-κB activity. Our study is aimed to investigate whether this novel synthetic compound retains or enhances the pharmaceutically beneficial activities from the both structures. For this purpose, inflammatory responses of lipopolysaccharide (LPS)-treated RAW264.7 cells were analyzed. Nitric oxide (NO) production, inducible NO synthase (iNOS) and tumor necrosis factor-α (TNF-α) mRNA expression, and the intracellular inflammatory signaling cascade were measured. Interestingly, PPP strongly inhibited NO release in a dose-dependent manner. To further investigate this anti-inflammatory activity, we identified molecular pathways by immunoblot analyses of nuclear fractions and whole cell lysates prepared from LPS-stimulated RAW264.7 cells with or without PPP pretreatment. The nuclear levels of p50, c-Jun, and c-Fos were significantly inhibited when cells were exposed to PPP. Moreover, according to the luciferase reporter gene assay after cotransfection with either TRIF or MyD88 in HEK293 cells, NF-κB-mediated luciferase activity dose-dependently diminished. Additionally, it was confirmed that PPP dampens the upstream signaling cascade of NF-κB and AP-1 activation. Thus, PPP inhibited Syk, Src, and TAK1 activities induced by LPS or induced by overexpression of these genes. Therefore, our results suggest that PPP displays anti-inflammatory activity via inhibition of Syk, Src, and TAK1 activity, which may be developed as a novel anti-inflammatory drug.
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Affiliation(s)
- Sungjae Yang
- Department of Genetic Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Yong Kim
- Department of Genetic Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Deok Jeong
- Department of Genetic Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Jun Ho Kim
- Department of Genetic Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Sunggyu Kim
- Research and Business Foundation, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Young-Jin Son
- College of Pharmacy, Sunchon National University, Suncheon 57922, Republic of Korea
| | - Byong Chul Yoo
- Colorectal Cancer Branch, Research Institute, National Cancer Center, Gyeonggi 10408, Republic of Korea
| | - Eun Jeong Jeong
- Department of Science Education, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Tae Woong Kim
- Department of Biochemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - In-Sook Han Lee
- Department of Science Education, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Jae Youl Cho
- Department of Genetic Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
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