1
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Vu QV, Vu NT, Baba K, Sasaki S, Tamura R, Morimoto K, Hirano H, Osada H, Kataoka T. Porphyrin derivatives inhibit tumor necrosis factor α-induced gene expression and reduce the expression and increase the cross-linked forms of cellular components of the nuclear factor κB signaling pathway. Eur J Pharmacol 2024; 977:176747. [PMID: 38880218 DOI: 10.1016/j.ejphar.2024.176747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Revised: 06/01/2024] [Accepted: 06/13/2024] [Indexed: 06/18/2024]
Abstract
The transcription factor nuclear factor κB (NF-κB) is activated by proinflammatory cytokines, such as tumor necrosis factor α (TNF-α) and Toll-like receptor (TLR) ligands. Screening of NPDepo chemical libraries identified porphyrin derivatives as anti-inflammatory compounds that strongly inhibited the up-regulation of intercellular adhesion molecule-1 (ICAM-1) expression induced by TNF-α, interleukin-1α, the TLR3 ligand, and TLR4 ligand in human umbilical vein endothelial cells. In the present study, the mechanisms of action of porphyrin derivatives were further elucidated using human lung adenocarcinoma A549 cells. Porphyrin derivatives, i.e., dimethyl-2,7,12,18-tetramethyl-3,8-di(1-methoxyethyl)-21H,23H-porphine-13,17-dipropionate (1) and pheophorbide a (2), inhibited TNF-α-induced ICAM-1 expression and decreased the TNF-α-induced transcription of ICAM-1, vascular cell adhesion molecule-1, and E-selectin genes. 1 and 2 reduced the expression of the NF-κB subunit RelA protein for 1 h, which was not rescued by the inhibition of proteasome- and lysosome-dependent protein degradation. In addition, 1 and 2 decreased the expression of multiple components of the TNF receptor 1 complex, and this was accompanied by the appearance of their cross-linked forms. As common components of the NF-κB signaling pathway, 1 and 2 also cross-linked the α, β, and γ subunits of the inhibitor of NF-κB kinase complex and the NF-κB subunits RelA and p50. Cellular protein synthesis was prevented by 2, but not by 1. Therefore, the present results indicate that porphyrin derivative 1 reduced the expression and increased the cross-linked forms of cellular components required for the NF-κB signaling pathway without affecting global protein synthesis.
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Affiliation(s)
- Quy Van Vu
- Department of Applied Biology, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto, 606-8585, Japan
| | - Nhat Thi Vu
- Department of Applied Biology, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto, 606-8585, Japan
| | - Kosuke Baba
- Department of Applied Biology, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto, 606-8585, Japan
| | - Saki Sasaki
- Department of Applied Biology, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto, 606-8585, Japan
| | - Ryuichi Tamura
- Department of Applied Biology, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto, 606-8585, Japan
| | - Kyoko Morimoto
- Department of Applied Biology, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto, 606-8585, Japan
| | - Hiroyuki Hirano
- Chemical Resource Development Research Unit, RIKEN Center for Sustainable Resource Science, Wako, Saitama, 351-0198, Japan
| | - Hiroyuki Osada
- Chemical Resource Development Research Unit, RIKEN Center for Sustainable Resource Science, Wako, Saitama, 351-0198, Japan; Department of Pharmaceutical Sciences, University of Shizuoka, Shizuoka, 422-8526, Japan
| | - Takao Kataoka
- Department of Applied Biology, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto, 606-8585, Japan; Biomedical Research Center, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto, 606-8585, Japan.
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2
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Liu S, Bi H, Jiang M, Chen Y, Jiang M. An update on the role of TRIM/NLRP3 signaling pathway in atherosclerosis. Biomed Pharmacother 2023; 160:114321. [PMID: 36736278 DOI: 10.1016/j.biopha.2023.114321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 01/14/2023] [Accepted: 01/26/2023] [Indexed: 02/04/2023] Open
Abstract
Atherosclerosis (AS) is a chronic inflammatory disease of large and medium arteries that includes lipid metabolism disorder and recruitment of immune cells to the artery wall. An increasing number of studies have confirmed that inflammasome over-activation is associated with the onset and progression of atherosclerosis. The NLRP3 inflammasome, in particular, has been proven to increase the incidence rate of cardiovascular diseases (CVD) by promoting pro-inflammatory cytokine release and reducing plaque stability. The strict control of inflammasome and prevention of excessive inflammatory reactions have been the research focus of inflammatory diseases. Tripartite motif (TRIM) is a protein family with a conservative structure and rapid evolution. Several studies have demonstrated the TRIM family's regulatory role in mediating inflammation. This review aims to clarify the relationship between TRIMs and NLRP3 inflammasome and provide insights for future research and treatment discovery.
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Affiliation(s)
- Sibo Liu
- The QUEEN MARY school, Nanchang University, 999 Xuefu Road, Nanchang, Jiangxi 330031, China
| | - Hongfeng Bi
- Medical Equipment Department, Dongying Shengli Oilfield Central Hospital, Dongying, Shandong 257034, China
| | - Meiling Jiang
- Department of obstetrics, Dongying Shengli Oilfield Central Hospital, Dongying, Shandong 257034, China
| | - Yuanli Chen
- Key Laboratory of Major Metabolic Diseases and Nutritional Regulation of Anhui Department of Education, College of Food and Biological Engineering, Hefei University of Technology, Hefei, China
| | - Meixiu Jiang
- The Institute of Translational Medicine, Nanchang University, 999 Xuefu Road, Nanchang, Jiangxi 330031, China.
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3
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Kole PB, Kollur SP, Revanasiddappa HD, Shivamallu C, Costa RA, Junior ESA, Anselmo LM, da Silva JN, Srinivasa C, Syed A, Singh FV. Structural, Electronic, Vibrational and Pharmacological Investigations of Highly Functionalized Diarylmethane Molecules Using DFT Calculations, Molecular Dynamics and Molecular Docking. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2041050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Priyanka B. Kole
- Chemistry Division, School of Advanced Science, VIT University, Chennai, India
| | - Shiva Prasad Kollur
- School of Agriculture, Geography, Environment, Ocean and Natural Sciences (SAGEONS), The University of the South Pacific, Suva, Fiji
- Department of Sciences, Amrita School of Arts and Sciences, Amrita Vishwa Vidyapeetham, Mysuru, India
| | | | - Chandan Shivamallu
- Department of Biotechnology and Bioinformatics, Faculty of Life Sciences, JSS Academy of Higher Education and Research (JSSAHER), Mysuru, India
| | - Renyer A. Costa
- Department of Chemistry, Federal University of Amazonas (DQ-UFAM), Manaus, Brazil
| | - Earle S. A. Junior
- Department of Chemistry, Federal University of Amazonas (DQ-UFAM), Manaus, Brazil
| | - Lucas M. Anselmo
- Department of Chemistry, Federal University of Amazonas (DQ-UFAM), Manaus, Brazil
| | - Jonathas N. da Silva
- Department of Chemistry, Federal University of Amazonas (DQ-UFAM), Manaus, Brazil
| | | | - Asad Syed
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Fateh V. Singh
- Chemistry Division, School of Advanced Science, VIT University, Chennai, India
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4
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Duan Y, Ying Z, He F, Ying X, Jia L, Yang G. A new skeleton flavonoid and a new lignan from Portulaca oleracea L. and their activities. Fitoterapia 2021; 153:104993. [PMID: 34284073 DOI: 10.1016/j.fitote.2021.104993] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 07/09/2021] [Accepted: 07/11/2021] [Indexed: 11/15/2022]
Abstract
A new skeleton flavonoid, identified as (5aR)-10-hydroxy-8-methoxy-5aH,11H-chromeno[2,3-b]chromen-11-one (1), named oleracone G, and a new lignan, confirmed as 8-(4-hydroxy-3-methoxyphenyl)-3-methoxynaphthalen-2-ol (2), named oleralignan B, were isolated from Portulaca oleracea L., and the structures of them were determined using spectroscopic methods including UV, IR, 1D NMR, 2D NMR, and UHPLC-ESI-QTOF/MS. In addition, compounds 1-2 were applied to investigate the anti-inflammatory activities on lipopolysaccharide-stimulated macrophages and scavenging effects in 1,1-diphenyl-2-picryl-hydrazyl (DPPH) free radical. The results showed that the two compounds at 10 μM and 20 μM could dose-dependently decrease the secretion of interleukin 1β in RAW 264.7 cells by enzyme-linked immunosorbent assay, moreover, presented remarkable antioxidant activities with IC50 values of 27.57, 20.12 μM, respectively.
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Affiliation(s)
- Yang Duan
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, Liaoning, PR China
| | - Zheming Ying
- School of The First Clinic, Liaoning University of Traditional Chinese Medicine, Shenyang, Liaoning, PR China; Key Laboratory of Ministry of Education for TCM Viscera-State Theory and Applications, Liaoning University of Traditional Chinese Medicine, Shenyang, Liaoning, PR China
| | - Fan He
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, Liaoning, PR China
| | - Xixiang Ying
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, Liaoning, PR China.
| | - Lianqun Jia
- Key Laboratory of Ministry of Education for TCM Viscera-State Theory and Applications, Liaoning University of Traditional Chinese Medicine, Shenyang, Liaoning, PR China.
| | - Guanlin Yang
- School of The First Clinic, Liaoning University of Traditional Chinese Medicine, Shenyang, Liaoning, PR China; Key Laboratory of Ministry of Education for TCM Viscera-State Theory and Applications, Liaoning University of Traditional Chinese Medicine, Shenyang, Liaoning, PR China
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5
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Brønsted acid-catalyzed Friedel-Crafts-type alkylation of arenes with α-aryl diazoacetates. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2020.152751] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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6
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Nazari A, Heravi MM, Zadsirjan V. Oxazolidinones as chiral auxiliaries in asymmetric aldol reaction applied to natural products total synthesis. J Organomet Chem 2021. [DOI: 10.1016/j.jorganchem.2020.121629] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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7
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Vo NT, Sasaki S, Miyake Y, Nguyen NT, Dang PH, Thi Nguyen MT, Kataoka T. α-Conidendrin inhibits the expression of intercellular adhesion molecule-1 induced by tumor necrosis factor-α in human lung adenocarcinoma A549 cells. Eur J Pharmacol 2020; 890:173651. [PMID: 33049301 DOI: 10.1016/j.ejphar.2020.173651] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 09/29/2020] [Accepted: 10/09/2020] [Indexed: 12/30/2022]
Abstract
α-Conidendrin is a lignan isolated from Taxus wallichiana and other species. In the present study, we demonstrated that α-conidendrin inhibited the cell-surface expression of intercellular adhesion molecule-1 (ICAM-1) induced by tumor necrosis factor-α (TNF-α) at an IC50 value of 40-60 μM in human lung adenocarcinoma A549 cells. α-Conidendrin decreased ICAM-1 protein and mRNA expression levels at concentrations of 40-100 μM in TNF-α-stimulated A549 cells. The TNF-α-induced mRNA expression of vascular cell adhesion molecule-1, E-selectin, and cyclooxygenase-2 was also reduced by α-conidendrin. In the TNF-α-induced nuclear factor κB (NF-κB) signaling pathway, α-conidendrin did not influence the translocation of the NF-κB subunit RelA from the cytoplasm to the nucleus at concentrations up to 100 μM. A chromatin immunoprecipitation assay revealed that α-conidendrin at 100 μM reduced the binding of RelA to the ICAM-1 promoter in response to a stimulation with TNF-α. Collectively, these results indicated that α-conidendrin interfered with the DNA binding of RelA to the ICAM-1 promoter, thereby reducing ICAM-1 transcription.
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Affiliation(s)
- Nghia Trong Vo
- Department of Applied Biology, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto, 606-8585, Japan
| | - Saki Sasaki
- Department of Applied Biology, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto, 606-8585, Japan
| | - Yasunobu Miyake
- Division of Molecular and Cellular Immunoscience, Department of Biomolecular Sciences, Faculty of Medicine, Saga University, Saga, 849-8501, Japan
| | - Nhan Trung Nguyen
- Faculty of Chemistry, University of Science, 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, Viet Nam; Cancer Research Laboratory, University of Science, 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, Viet Nam; Vietnam National University, Linh Trung Ward, Thu Duc District, Ho Chi Minh City, Viet Nam
| | - Phu Hoang Dang
- Faculty of Chemistry, University of Science, 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, Viet Nam; Vietnam National University, Linh Trung Ward, Thu Duc District, Ho Chi Minh City, Viet Nam
| | - Mai Thanh Thi Nguyen
- Faculty of Chemistry, University of Science, 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, Viet Nam; Cancer Research Laboratory, University of Science, 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, Viet Nam; Vietnam National University, Linh Trung Ward, Thu Duc District, Ho Chi Minh City, Viet Nam
| | - Takao Kataoka
- Department of Applied Biology, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto, 606-8585, Japan; The Center for Advanced Insect Research Promotion (CAIRP), Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto, 606-8585, Japan.
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8
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Lignans and Their Derivatives from Plants as Antivirals. Molecules 2020; 25:molecules25010183. [PMID: 31906391 PMCID: PMC6982783 DOI: 10.3390/molecules25010183] [Citation(s) in RCA: 73] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 12/21/2019] [Accepted: 12/23/2019] [Indexed: 12/31/2022] Open
Abstract
Lignans are widely produced by various plant species; they are a class of natural products that share structural similarity. They usually contain a core scaffold that is formed by two or more phenylpropanoid units. Lignans possess diverse pharmacological properties, including their antiviral activities that have been reported in recent years. This review discusses the distribution of lignans in nature according to their structural classification, and it provides a comprehensive summary of their antiviral activities. Among them, two types of antiviral lignans—podophyllotoxin and bicyclol, which are used to treat venereal warts and chronic hepatitis B (CHB) in clinical, serve as examples of using lignans for antivirals—are discussed in some detail. Prospects of lignans in antiviral drug discovery are also discussed.
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9
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The Anti-Proliferation, Cycle Arrest and Apoptotic Inducing Activity of Peperomin E on Prostate Cancer PC-3 Cell Line. Molecules 2019; 24:molecules24081472. [PMID: 30991627 PMCID: PMC6514592 DOI: 10.3390/molecules24081472] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 04/12/2019] [Accepted: 04/12/2019] [Indexed: 12/18/2022] Open
Abstract
Peperomin E is a natural secolignan existing distributed in the plants of the genus Peperomia. Previous investigations demonstrated that peperomin E showed potential antitumor activity in some cancer lines, but it is unclear whether peperomin E has an effect on prostate cancer cell lines. The aim of the present study is to investigate its effects on proliferation inhibition, apoptosis-inducing and cell-cycle arrest activity using a prostate cancer PC-3 cell line. The proliferation inhibition was evaluated by MTT assay, apoptosis was detected by Annexin V/propidium iodide (PI) staining and Hoechst 33258 staining, cell cycle distributions were measured by flow cytometry, and western blot analysis was used to determine specific cellular apoptotic protein expressions of Bcl-2, Bax, caspase-3 and cleaved-caspase-3. According to the results of this study, peperomin E exhibited significant anti-proliferation activity on PC-3 cell lines in vitro in a dose-dependent manner. Peperomin E treatments lead to marked morphological changes. Apoptotic cell count and cell-cycle distribution at G2/M phase significantly increased with increasing concentrations of peperomin E. The down-regulated expression level of Bcl-2 and up-regulated expression level of Bax and cleaved-caspase-3 compared with the controls were also observed after peperomin E treatment. These data suggest that peperomin E exhibited proliferation inhabitation, apoptosis-inducing and cell-cycle arrest activity on PC-3 cell lines. The anti-proliferation effect of peperomin E on PC-3 cells should result partly from its cell-cycle arrest and apoptosis-inducing activity, whereas the increasing of the Bax/Bcl-2 ratio and activation of caspases-3 play an important role in the development of apoptosis.
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10
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Lu X, Li XQ, Qin HH, Feng BM, Cheng XH, Yang QX, Yu DY, Shi LY, Yu ZX, Fang XX. Two new secolignans from the roots of Urtica fissa. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2019; 21:165-170. [PMID: 29224377 DOI: 10.1080/10286020.2017.1411347] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Accepted: 11/26/2017] [Indexed: 06/07/2023]
Abstract
Two new secolignans, 3,4-trans-3-hydroxymethyl-4-[bis(4-hydroxy-3- methoxyphenyl)methyl]butyrolactone (1) and 3,4-trans-3-hydroxymethyl-4- [bis(3,4-dimethoxyphenyl)methyl]butyrolactone (2) have been isolated from the roots of Urtica fissa E.Pritz. Their structures were determined on the basis of spectroscopic methods, especially 1H NMR, 13C NMR, 2D NMR, and HR-ESI-MS. The inhibitory effects on N1 and N2, two subtypes of neuraminidases (NAs), of these two compounds were assayed.
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Affiliation(s)
- Xuan Lu
- a School of Life Sciences and Biotechnology , Dalian University , Dalian 116622 , China
| | - Xue-Qing Li
- a School of Life Sciences and Biotechnology , Dalian University , Dalian 116622 , China
| | - Hai-Hong Qin
- a School of Life Sciences and Biotechnology , Dalian University , Dalian 116622 , China
| | - Bao-Min Feng
- a School of Life Sciences and Biotechnology , Dalian University , Dalian 116622 , China
| | - Xing-Hua Cheng
- a School of Life Sciences and Biotechnology , Dalian University , Dalian 116622 , China
| | - Qing-Xiong Yang
- b School of Chemistry & Material Science , Guizhou Normal University , Guiyang 550001 , China
| | - Da-Yong Yu
- a School of Life Sciences and Biotechnology , Dalian University , Dalian 116622 , China
| | - Li-Ying Shi
- a School of Life Sciences and Biotechnology , Dalian University , Dalian 116622 , China
| | - Zong-Xia Yu
- a School of Life Sciences and Biotechnology , Dalian University , Dalian 116622 , China
| | - Xue-Xun Fang
- c Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, College of Life Sciences , Jilin University , Changchun 130012 , China
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11
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Denis C, Dubois MAJ, Voisin-Chiret AS, Bureau R, Choi C, Mousseau JJ, Bull JA. Synthesis of 3,3-Diarylazetidines by Calcium(II)-Catalyzed Friedel-Crafts Reaction of Azetidinols with Unexpected Cbz Enhanced Reactivity. Org Lett 2019; 21:300-304. [PMID: 30582708 DOI: 10.1021/acs.orglett.8b03745] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Azetidines are valuable motifs that readily access under explored chemical space for drug discovery. 3,3-Diarylazetidines are prepared in high yield from N-Cbz azetidinols in a calcium(II)-catalyzed Friedel-Crafts alkylation of (hetero)aromatics and phenols, including complex phenols such as β-estradiol. Electron poor phenols undergo O-alkylation. The product azetidines can be derivatized to drug-like compounds through the azetidine nitrogen and the aromatic groups. The N-Cbz group is crucial to reactivity by providing stabilization of an intermediate carbocation on the four-membered ring.
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Affiliation(s)
- Camille Denis
- Department of Chemistry , Imperial College London , Molecular Sciences Research Hub, White City Campus, Wood Lane, London W12 0BZ , U.K.,Normandie Univ, UNICAEN, EA 4258 , CERMN (Centre d'Etudes et de Recherche sur le Médicament de Normandie) - FR CNRS INC3M, Caen , France
| | - Maryne A J Dubois
- Department of Chemistry , Imperial College London , Molecular Sciences Research Hub, White City Campus, Wood Lane, London W12 0BZ , U.K
| | - Anne Sophie Voisin-Chiret
- Normandie Univ, UNICAEN, EA 4258 , CERMN (Centre d'Etudes et de Recherche sur le Médicament de Normandie) - FR CNRS INC3M, Caen , France
| | - Ronan Bureau
- Normandie Univ, UNICAEN, EA 4258 , CERMN (Centre d'Etudes et de Recherche sur le Médicament de Normandie) - FR CNRS INC3M, Caen , France
| | - Chulho Choi
- Pfizer Global Research and Development , 445 Eastern Point Road , Groton , Connecticut 06340 , United States
| | - James J Mousseau
- Pfizer Global Research and Development , 445 Eastern Point Road , Groton , Connecticut 06340 , United States
| | - James A Bull
- Department of Chemistry , Imperial College London , Molecular Sciences Research Hub, White City Campus, Wood Lane, London W12 0BZ , U.K
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Ang HT, Rygus JPG, Hall DG. Two-component boronic acid catalysis for increased reactivity in challenging Friedel–Crafts alkylations with deactivated benzylic alcohols. Org Biomol Chem 2019; 17:6007-6014. [DOI: 10.1039/c9ob01043b] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The combination of a boronic acid catalyst with perfluoropinacol as a co-catalyst improves the scope of Friedel–Crafts benzylations of arenes with electronically deactivated primary and secondary benzylic alcohols.
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Affiliation(s)
- Hwee Ting Ang
- Department of Chemistry
- Centennial Centre for Interdisciplinary Science
- University of Alberta
- Edmonton
- Canada
| | - Jason P. G. Rygus
- Department of Chemistry
- Centennial Centre for Interdisciplinary Science
- University of Alberta
- Edmonton
- Canada
| | - Dennis G. Hall
- Department of Chemistry
- Centennial Centre for Interdisciplinary Science
- University of Alberta
- Edmonton
- Canada
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Yan J, Li M, Wang XD, Lu ZY, Ni XL. Peperomin E (PepE) protects against high fat diet-induced atherosclerosis in Apolipoprotein E deficient (ApoE -/-) mice through reducing inflammation via the suppression of NLRP3 signaling pathway. Biomed Pharmacother 2018; 105:862-869. [PMID: 30021379 DOI: 10.1016/j.biopha.2018.04.140] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Revised: 04/18/2018] [Accepted: 04/18/2018] [Indexed: 12/30/2022] Open
Abstract
Peperomin E (PepE) is a type of secolignan, a major component of the plant Peperomia dindygulensis. It has been shown to exert anti-inflammatory effects; however, the effects of PepE on human atherosclerosis remain unexplored. In the study, we investigated the role of PepE in high fat diet (HFD) induced atherosclerosis using apolipoprotein E defcient (ApoE-/-) mice. Elevated serum homocyteine, cholesterol, and triglyceride levels, accelerated progression of atherosclerosis and exacerbated macrophage infiltration into atherosclerotic lesions were observed in HFD-fed ApoE-/- mice, which were attenuated by PepE treatment. ApoE-/- mice fed with HFD exhibited significantly high levels of inflammation-associated regulators in artery tissues, accompanied with an increased expression of p-inhibitor of κBα (IκBα) and p-nuclear factor-kappa B (NF-κB), and the process was blocked by PepE administration. Further, we found NOD-like receptor pyrin 3 (NLRP3) inflammasome activation in artery tissues of HFD-fed ApoE-/- mice. In vitro, silencing NLRP3 using small interfering RNA efficiently inhibited oxidized-low-density lipoprotein (oxLDL)-induced ASC and Caspase-1 expressions, interleukin (IL)-1β and IL-18 production in human aortic endothelial cells (HAECs). Further experiments indicated that NLRP3-ASC pathway was activated by reactive oxygen species (ROS), since ROS scavenger of N-acetyl-cysteine (NAC) prevented, which was further reduced by PepE addition. However, the anti-inflammatory effects of PepE on oxLDL-incubated HAECs were abolished by over-expression NLRP3. Together, our study revealed that PepE inhibited atherosclerosis development in HFD-fed ApoE-/- mice by suppressing NLRP3 inflammatory signaling pathway, and suggested that PepE might be a potential therapeutic strategy in the prevention of atherosclerosis.
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Affiliation(s)
- Jin Yan
- The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310002, China; Tongde Hospital of Zhejiang Province, No. 234, Gucui road, Hangzhou 310002, China
| | - Ming Li
- The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310002, China.
| | - Xiao-Dong Wang
- Tongde Hospital of Zhejiang Province, No. 234, Gucui road, Hangzhou 310002, China
| | - Zi-Ying Lu
- Tongde Hospital of Zhejiang Province, No. 234, Gucui road, Hangzhou 310002, China
| | - Xiao-Long Ni
- Tongde Hospital of Zhejiang Province, No. 234, Gucui road, Hangzhou 310002, China
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Sun RF, Zhu CC, Yang Y, Yu NJ. Novel secolignans from Peperomia dindygulensis and their inhibitory activities on JAK-STAT signaling pathways. Fitoterapia 2017; 122:80-84. [PMID: 28859930 DOI: 10.1016/j.fitote.2017.08.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2017] [Revised: 08/24/2017] [Accepted: 08/26/2017] [Indexed: 10/19/2022]
Abstract
Nineteen secolignans (1-19), including five new ones (1-5), were isolated from the whole plant of Peperomia dindygulensis. Their structures including stereochemistry were determined by spectroscopic methods, in particular NMR and electronic CD (ECD) analysis. All the isolates were evaluated for their inhibitory activities against IFN-γ/STAT1 as well as IL-6/STAT3 signaling pathway by the method of Luciferase assay. Six 2-methene type secolignans (1, 2, 6-9) exhibited significant inhibitory activities against JAK-STAT pathways with the IC50 values both lower than 10μM.
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Affiliation(s)
- Ruo-Feng Sun
- Beijing Institute of Pharmacology and Toxicology, Beijing 100850, People's Republic of China
| | - Chen-Cheng Zhu
- Beijing Institute of Pharmacology and Toxicology, Beijing 100850, People's Republic of China
| | - Yu Yang
- Beijing Institute of Pharmacology and Toxicology, Beijing 100850, People's Republic of China.
| | - Neng-Jiang Yu
- Beijing Institute of Pharmacology and Toxicology, Beijing 100850, People's Republic of China.
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Tiwari PK, Sivaraman B, Aidhen IS. α,α-Diarylethylene Glycols as Valuable Precursor for Synthesis of 1,1-Diarylethenes and α,α-Diaryl Acetaldehydes. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700467] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Praveen Kumar Tiwari
- Department of Chemistry; Indian Institute of Technology Madras; 600036 Chennai India
| | | | - Indrapal Singh Aidhen
- Department of Chemistry; Indian Institute of Technology Madras; 600036 Chennai India
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Wang XZ, Wen HM, Chai C, Zhang WY, Gao M, Liu R, Wu H, Liang JY. Determination of a natural DNMT1 inhibitor, peperomin E, in rat plasma by UFLC-MS/MS and method application in a pharmacokinetic study. Biomed Chromatogr 2017; 31. [PMID: 28060996 DOI: 10.1002/bmc.3930] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Revised: 12/20/2016] [Accepted: 01/04/2017] [Indexed: 11/11/2022]
Abstract
Peperomin E (PepE), a naturally occurring secolignan isolated from Peperomia dindygulensis, has drawn much attention recently owing to its anticancer and DNA methyltransferase 1 (DNMT1) inhibitory activity. Here, a simple and sensitive ultra-fast liquid chromatography-tandem mass spectrometry method was developed and validated for the determination of PepE in rat plasma for the first time. Samples were prepared by simple protein precipitation. Separation was performed on an XBridge™ C18 column using a mobile phase of acetonitrile and 0.1% (v/v) aqueous formic acid. PepE and the internal standard arctigenin were detected in a positive-ion mode using multiple reaction monitoring of the transitions at m/z 413.2 → 261.0 and 373.2 → 137.2, respectively. The calibration curve for PepE was linear over the range of concentrations of 1.46-6000 ng/mL, with a lower limit of quantitation of 1.46 ng/mL. Both intra- and interday precisions were within 11.05%, and the accuracy ranged from -11.5 to 5.51%. The extraction recovery and matrix effect were within acceptable limits. Stability tests showed that PepE remained stable throughout the analytical procedure. The validated method was then used to analyze the pharmacokinetics of PepE administered to rats orally (12.5 and 25 mg/kg) or intravenously (6.25 and 12.5 mg/kg).
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Affiliation(s)
- Xin-Zhi Wang
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
| | - Hong-Mei Wen
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
| | - Chuan Chai
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
| | - Wen-Ying Zhang
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
| | - Ming Gao
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
| | - Rui Liu
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
| | - Hao Wu
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
| | - Jing-Yu Liang
- Department of Natural Medicinal Chemistry, China Pharmaceutical University, Nanjing, China
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Jadhav AS, Anand RV. 1,6-Conjugate addition of zinc alkyls to para-quinone methides in a continuous-flow microreactor. Org Biomol Chem 2017; 15:56-60. [DOI: 10.1039/c6ob02277d] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
An efficient protocol has been developed for the 1,6-conjugate addition of zinc alkyls to p-quinone methides under continuous-flow using a microreactor.
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Affiliation(s)
- Abhijeet S. Jadhav
- Department of Chemical Sciences
- Indian Institute of Science Education and Research (IISER) Mohali
- Manauli (PO)
- India
| | - Ramasamy Vijaya Anand
- Department of Chemical Sciences
- Indian Institute of Science Education and Research (IISER) Mohali
- Manauli (PO)
- India
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Locascio TM, Tunge JA. Palladium-Catalyzed Regiodivergent Substitution of Propargylic Carbonates. Chemistry 2016; 22:18140-18146. [DOI: 10.1002/chem.201603481] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2016] [Indexed: 01/27/2023]
Affiliation(s)
- Theresa M. Locascio
- Department of Chemistry; The University of Kansas, 2010 Malott Hall; 1251 Wescoe Hall Drive Lawrence KS 66045 USA
| | - Jon A. Tunge
- Department of Chemistry; The University of Kansas, 2010 Malott Hall; 1251 Wescoe Hall Drive Lawrence KS 66045 USA
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Wang XZ, Cheng Y, Wang KL, Liu R, Yang XL, Wen HM, Chai C, Liang JY, Wu H. Peperomin E reactivates silenced tumor suppressor genes in lung cancer cells by inhibition of DNA methyltransferase. Cancer Sci 2016; 107:1506-1519. [PMID: 27501331 PMCID: PMC5084666 DOI: 10.1111/cas.13029] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Revised: 07/26/2016] [Accepted: 08/01/2016] [Indexed: 12/18/2022] Open
Abstract
Advanced lung cancer has poor prognosis owing to its low sensitivity to current chemotherapy agents. Therefore, discovery of new therapeutic agents is urgently needed. In this study, we investigated the antitumor effects of peperomin E, a secolignan isolated from Peperomia dindygulensis, a frequently used Chinese folk medicine for lung cancer treatment. The results indicate that peperomin E has antiproliferative effects, promoting apoptosis and cell cycle arrest in non‐small‐cell lung cancer (NSCLC) cell lines in a dose‐dependent manner, while showing lower toxicity against normal human lung epidermal cells. Peperomin E inhibited tumor growth in A549 xenograft BALB/c nude mice without significant secondary adverse effects, indicating that it may be safely used to treat NSCLC. Furthermore, the mechanisms underlying the anticancer effects of peperomin E have been investigated. Using an in silico target fishing method, we observed that peperomin E directly interacts with the active domain of DNA methyltransferase 1 (DNMT1), potentially affecting its genome methylation activity. Subsequent experiments verified that peperomin E decreased DNMT1 activity and expression, thereby decreasing global methylation and reactivating the epigenetically silenced tumor suppressor genes including RASSF1A,APC,RUNX3, and p16INK4, which in turn activates their mediated pro‐apoptotic and cell cycle regulatory signaling pathways in lung cancer cells. The observations herein report for the first time that peperomin E is a potential chemotherapeutic agent for NSCLC. The anticancer effects of peperomin E may be partly attributable to its ability to demethylate and reactivate methylation‐silenced tumor suppressor genes through direct inhibition of the activity and expression of DNMT1.
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Affiliation(s)
- Xin-Zhi Wang
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
| | - Ying Cheng
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
| | - Kui-Long Wang
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
| | - Rui Liu
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
| | - Xiao-Lin Yang
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
| | - Hong-Mei Wen
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
| | - Chuan Chai
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
| | - Jing-Yu Liang
- Department of Natural Medicinal Chemistry, China Pharmaceutical University, Nanjing, China
| | - Hao Wu
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China.
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Wang XZ, Cheng Y, Wu H, Li N, Liu R, Yang XL, Qiu YY, Wen HM, Liang JY. The natural secolignan peperomin E induces apoptosis of human gastric carcinoma cells via the mitochondrial and PI3K/Akt signaling pathways in vitro and in vivo. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2016; 23:818-827. [PMID: 27288917 DOI: 10.1016/j.phymed.2016.04.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Revised: 03/06/2016] [Accepted: 04/05/2016] [Indexed: 06/06/2023]
Abstract
BACKGROUND Peperomin E (PepE) is a type of secolignan that is a major component of the plant Peperomia dindygulensis. It has been shown to exert anticancer effects in various cancer cell lines; however, the effects of PepE on human gastric cancer remain unexplored. PURPOSE The aim of this study was to investigate the effectiveness of PepE as a treatment of gastric cancer and to identify the underlying mechanisms of its anticancer activity. STUDY DESIGN The efficacy of PepE was examined using human gastric carcinoma SGC-7901, BGC-823, MKN-45 cell lines and normal gastric epithelial GES-1 cell line as an in vitro model and SGC-7901 xenograft mice as an in vivo model. METHODS Cell viability assays were used to examine the anticancer effect of 0-204.8µM concentrations of PepE in vitro. Additionally, flow cytometry and western blotting were used to elucidate the mechanism with a particular focus on apoptosis. SGC-7901 cells were injected into BALB/c mice, which were then treated with 5 or 15mg/kg/day dose of PepE. The in vivo activity of PepE was investigated by measuring tumors and conducting immunohistochemistry experiments. The safety of PepE was investigated by measuring blood biochemical parameters and conducting histopathological analysis. Taxol was used throughout as a positive control. RESULTS The results showed that PepE exhibited antiproliferative effects against gastric cancer cells and induced their apoptosis in a dose dependent manner with lower toxicity against normal gastric epithelial cells. Mechanistic evaluations indicated that PepE induced apoptosis by reducing the mitochondrial membrane potential (MTP), inducing cytochrome C release from mitochondria, reducing the ratio of Bcl-2/Bax and Bcl-xl/Bad, increasing activation of caspase-3, and decreasing the levels of PI3K and pAkt. The apoptotic effect of PepE on SGC-7901 cells was partially blocked by an Akt activator SC79. PepE potently inhibited in vivo tumor growth with no obvious toxicity following subcutaneous inoculation of SGC-7901 cells in nude mice. CONCLUSIONS These findings indicate that PepE can inhibit cell proliferation and induce apoptosis of gastric cancer cells through mitochondrial and PI3K/Akt signaling pathways with relative safety and may be a novel effective chemotherapeutic agent against gastric cancer.
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Affiliation(s)
- Xin-Zhi Wang
- College of Pharmacy, Nanjing University of Chinese Medicines, Xianlin Avenue No. 138, 210023 Nanjing, China.
| | - Ying Cheng
- College of Pharmacy, Nanjing University of Chinese Medicines, Xianlin Avenue No. 138, 210023 Nanjing, China
| | - Hao Wu
- College of Pharmacy, Nanjing University of Chinese Medicines, Xianlin Avenue No. 138, 210023 Nanjing, China
| | - Na Li
- College of Pharmacy, Nanjing University of Chinese Medicines, Xianlin Avenue No. 138, 210023 Nanjing, China
| | - Rui Liu
- College of Pharmacy, Nanjing University of Chinese Medicines, Xianlin Avenue No. 138, 210023 Nanjing, China
| | - Xiao-Lin Yang
- College of Pharmacy, Nanjing University of Chinese Medicines, Xianlin Avenue No. 138, 210023 Nanjing, China
| | - Yun-Ying Qiu
- College of Pharmacy, Nanjing University of Chinese Medicines, Xianlin Avenue No. 138, 210023 Nanjing, China
| | - Hong-Mei Wen
- College of Pharmacy, Nanjing University of Chinese Medicines, Xianlin Avenue No. 138, 210023 Nanjing, China
| | - Jing-Yu Liang
- Department of Natural Medicinal Chemistry, China Pharmaceutical University, Tongjia Lane No. 24, 210009, Nanjing, China
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Tiwari PK, Aidhen IS. A Weinreb Amide Based Building Block for Convenient Access to β,β-Diarylacroleins: Synthesis of 3-Arylindanones. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600193] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Nguyen DH, Zhao BT, Le DD, Yoon YH, Ko JY, Woo KS, Jun DY, Kim YH, Woo MH. Isolation of Lignan and Fatty Acid Derivatives from the Grains of Echinochloa utilis and Their Inhibition of Lipopolysaccharide-Induced Nitric Oxide Production in RAW 264.7 Cells. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:425-432. [PMID: 26725284 DOI: 10.1021/acs.jafc.5b05638] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Two new fatty acid derivatives, echinochlorins A (8) and B (9) and a racemic lignan, (±)-anti-1-(4-hydroxy-3-methoxyphenyl)-2-{4-[(E)-3-acetoxypropen-1-yl]-2-methoxyphenoxy}propan-1,3-diol 3-acetate (1), were isolated from Echinochloa utilis grains, along with six known lignans (2-7) and two fatty acid derivatives (10, 11). Their structures were established by spectroscopic data analyses (IR, UV, HR-FABMS, GC-MS, and 1D and 2D NMR). The configuration of 1 was determined by Mosher's method. Compound 5 displayed potential inhibitory activity on lipopolysaccharide-induced NO production in macrophage RAW 264.7 cells with an IC50 value of 4.8 ± 0.5 μM. These isolated compounds in crude EtOH extract were also quantitated by HPLC.
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Affiliation(s)
- Duc Hung Nguyen
- College of Pharmacy, Catholic University of Daegu , Gyeongsan 38430, Republic of Korea
- Phutho College of Pharmacy , Viettri City, Phutho Province 290000, Vietnam
| | - Bing Tian Zhao
- College of Pharmacy, Catholic University of Daegu , Gyeongsan 38430, Republic of Korea
| | - Duc Dat Le
- College of Pharmacy, Catholic University of Daegu , Gyeongsan 38430, Republic of Korea
| | - Young Ho Yoon
- Functional Cereal Crop Research Division, Department of Functional Crop, NICS, RDA , Milyang 50426, Republic of Korea
| | - Jee Youn Ko
- Functional Cereal Crop Research Division, Department of Functional Crop, NICS, RDA , Milyang 50426, Republic of Korea
| | - Koan Sik Woo
- Functional Cereal Crop Research Division, Department of Functional Crop, NICS, RDA , Milyang 50426, Republic of Korea
| | - Do Youn Jun
- Laboratory of Immunobiology, School of Life Science and Biotechnology, College of Natural Sciences, Kyungpook National University , Daegu 39061, Republic of Korea
| | - Young Ho Kim
- Laboratory of Immunobiology, School of Life Science and Biotechnology, College of Natural Sciences, Kyungpook National University , Daegu 39061, Republic of Korea
| | - Mi Hee Woo
- College of Pharmacy, Catholic University of Daegu , Gyeongsan 38430, Republic of Korea
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Lloyd MG, Taylor RJK, Unsworth WP. Phosphorylated cyclopropanes in the synthesis of α-alkylidene-γ-butyrolactones: total synthesis of (±)-savinin, (±)-gadain and (±)-peperomin E. Org Biomol Chem 2016; 14:8971-8988. [PMID: 27714269 DOI: 10.1039/c6ob01527a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
A novel telescoped cyclopropanation/reductive ring-opening/olefination sequence is reported for the synthesis of α-alkylidene-γ-butyrolactone natural products.
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Soorukram D, Panmuang J, Tuchinda P, Kuhakarn C, Reutrakul V, Pohmakotr M. A stereoselective approach to bioactive secolignans: synthesis of peperomin C and its analogues. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.07.101] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Allantopyrone A, an α-pyrone metabolite from an endophytic fungus, inhibits the tumor necrosis factor α-induced nuclear factor κB signaling pathway. J Antibiot (Tokyo) 2014; 68:71-5. [PMID: 25118107 DOI: 10.1038/ja.2014.103] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2014] [Revised: 06/13/2014] [Accepted: 07/05/2014] [Indexed: 12/17/2022]
Abstract
Tumor necrosis factor α (TNF-α) induces the activation of transcription factor nuclear factor κB (NF-κB), which upregulates a variety of genes, including the gene encoding intercellular adhesion molecule-1 (ICAM-1). Allantopyrone A, a recently identified α-pyrone metabolite from an endophytic fungus, was found to inhibit the TNF-α-induced expression of ICAM-1 in human lung carcinoma A549 cells. Allantopyrone A also inhibited the TNF-α-induced luciferase expression of an NF-κB-responsive reporter. In the NF-κB signaling pathway, allantopyrone A inhibited the nuclear translocation of NF-κB subunits as well as the phosphorylation and subsequent degradation of the inhibitor of NF-κB (IκB) α proteins. By contrast, allantopyrone A did not directly affect the catalytic activity of active IκB kinase β. These findings indicate that allantopyrone A inhibits the NF-κB signaling pathway at a step upstream of IκBα phosphorylation.
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Wang XZ, Liang JY, Wen HM, Shan CX, Liu R. Qualitative and quantitative analyses of bioactive secolignans from folk medicinal plant Peperomia dindygulensis using UHPLC-UV/Q-TOF-MS. J Pharm Biomed Anal 2014; 94:1-11. [DOI: 10.1016/j.jpba.2014.01.024] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2013] [Revised: 01/15/2014] [Accepted: 01/19/2014] [Indexed: 10/25/2022]
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Mitsuda S, Yokomichi T, Yokoigawa J, Kataoka T. Ursolic acid, a natural pentacyclic triterpenoid, inhibits intracellular trafficking of proteins and induces accumulation of intercellular adhesion molecule-1 linked to high-mannose-type glycans in the endoplasmic reticulum. FEBS Open Bio 2014; 4:229-39. [PMID: 24649404 PMCID: PMC3958921 DOI: 10.1016/j.fob.2014.02.009] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2014] [Revised: 02/10/2014] [Accepted: 02/19/2014] [Indexed: 12/22/2022] Open
Abstract
Ursolic acid inhibits cell-surface expression of ICAM-1. Ursolic acid induces accumulation of high-mannose-type ICAM-1 in ER. Ursolic acid induces morphological changes of Golgi apparatus. Ursolic acid inhibits intracellular trafficking of proteins.
Ursolic acid (3β-hydroxy-urs-12-en-28-oic acid) is a natural pentacyclic triterpenoid that is present in many plants, including medicinal herbs, and foods. Ursolic acid was initially identified as an inhibitor of the expression of intercellular adhesion molecule-1 (ICAM-1) in response to interleukin-1α (IL-1α). We report here a novel biological activity: ursolic acid inhibits intracellular trafficking of proteins. Ursolic acid markedly inhibited the IL-1α-induced cell-surface ICAM-1 expression in human cancer cell lines and human umbilical vein endothelial cells. By contrast, ursolic acid exerted weak inhibitory effects on the IL-1α-induced ICAM-1 expression at the protein level. Surprisingly, we found that ursolic acid decreased the apparent molecular weight of ICAM-1 and altered the structures of N-linked oligosaccharides bound to ICAM-1. Ursolic acid induced the accumulation of ICAM-1 in the endoplasmic reticulum, which was linked mainly to high-mannose-type glycans. Moreover, in ursolic-acid-treated cells, the Golgi apparatus was fragmented into pieces and distributed over the cells. Thus, our results reveal that ursolic acid inhibits intracellular trafficking of proteins and induces the accumulation of ICAM-1 linked to high-mannose-type glycans in the endoplasmic reticulum.
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Key Words
- BSA, bovine serum albumin
- ER, endoplasmic reticulum
- Endo H, endoglycosidase H
- Glycosylation
- Golgi apparatus
- HRP, horseradish peroxidase
- HUVEC, human umbilical vein endothelial cells
- ICAM-1, intercellular adhesion molecule-1
- IL-1, interleukin-1
- Intercellular adhesion molecule-1
- Intracellular trafficking
- IκB, inhibitor of nuclear factor κB
- MTT, 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide
- NF-κB, nuclear factor κB
- PBS, phosphate-buffered saline
- PNGase F, peptide: N-glycosidase F
- Ursolic acid
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Affiliation(s)
- Satoshi Mitsuda
- Department of Applied Biology, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
| | - Tomonobu Yokomichi
- Department of Applied Biology, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
| | - Junpei Yokoigawa
- Department of Applied Biology, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
| | - Takao Kataoka
- Department of Applied Biology, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
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Simultaneous determination of five bioactive secolignans in rat plasma by LC–MS/MS for pharmacokinetic studies following oral administration of Peperomia dindygulensis Miq. extract. J Chromatogr B Analyt Technol Biomed Life Sci 2014; 944:82-9. [DOI: 10.1016/j.jchromb.2013.11.018] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2013] [Accepted: 11/09/2013] [Indexed: 11/17/2022]
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Mondal S, Panda G. Synthetic methodologies of achiral diarylmethanols, diaryl and triarylmethanes (TRAMs) and medicinal properties of diaryl and triarylmethanes-an overview. RSC Adv 2014. [DOI: 10.1039/c4ra01341g] [Citation(s) in RCA: 184] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
This review covers the synthesis of achiral diarylmethanols, diaryl and triarylmethanes and the bioactivities of diaryl and triarylmethanes during 1995 to 2013.
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Affiliation(s)
- Sankalan Mondal
- Central Drug Research Institute
- Medicinal and Process Chemistry Division
- Lucknow, India
| | - Gautam Panda
- Central Drug Research Institute
- Medicinal and Process Chemistry Division
- Lucknow, India
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Tamura R, Chen Y, Shinozaki M, Arao K, Wang L, Tang W, Hirano S, Ogura H, Mitsui T, Taketani S, Ando M, Kataoka T. Eudesmane-type sesquiterpene lactones inhibit multiple steps in the NF-κB signaling pathway induced by inflammatory cytokines. Bioorg Med Chem Lett 2012; 22:207-11. [DOI: 10.1016/j.bmcl.2011.11.029] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2011] [Revised: 11/07/2011] [Accepted: 11/09/2011] [Indexed: 10/15/2022]
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31
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Feng BM, Qin HH, Wang HG, Shi LY, Yu DY, Ji BQ, Zhao Q, Wang YQ. Three new secolignan glycosides from Urtica fissa E. Pritz. J Nat Med 2011; 66:562-5. [PMID: 22124934 DOI: 10.1007/s11418-011-0615-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2011] [Accepted: 11/11/2011] [Indexed: 11/26/2022]
Abstract
Three new secolignan glycosides {3,4-trans-4-[bis(3,4-dimethoxyphenyl)methyl]-2-oxotetrahydrafuran-3-yl}methyl-O-β-glucopyranoside (1), {3,4-trans-4-[(3-methoxy-4-hydroxyphenyl)(3,4-dimethoxyphenyl)methyl]-2-oxotetrahydrafuran-3-yl}methyl-O-β-glucopyranoside (2) and {3,4-cis-4-[(3-methoxy-4-hydroxyphenyl)(3,4-dimethoxyphenyl)methyl]-2-oxotetrahydrafuran-3-yl}methyl-O-β-glucopyranoside (3) were isolated from the roots of Urtica fissa E. Pritz. Their structures were identified by spectral methods including 1D NMR, 2D NMR and HR-EI-MS.
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Affiliation(s)
- Bao-min Feng
- School of Life Science and Biotechnology, Dalian University, Dalian 116622, China.
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