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Machilin D Promotes Apoptosis and Autophagy, and Inhibits Necroptosis in Human Oral Squamous Cell Carcinoma Cells. Int J Mol Sci 2023; 24:ijms24054576. [PMID: 36902006 PMCID: PMC10002565 DOI: 10.3390/ijms24054576] [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: 12/31/2022] [Revised: 02/13/2023] [Accepted: 02/24/2023] [Indexed: 03/03/2023] Open
Abstract
Oral squamous cell carcinoma (OSCC) accounts for about 90% of all head and neck cancers, the prognosis is very poor, and there are no effective targeted therapies. Herein, we isolated Machilin D (Mach), a lignin, from the roots of Saururus chinensis (S. chinensis) and assessed its inhibitory effects on OSCC. Herein, Mach had significant cytotoxicity against human OSCC cells and showed inhibitory effects against cell adhesion, migration, and invasion by inhibiting adhesion molecules, including the FAK/Src pathway. Mach suppressed the PI3K/AKT/mTOR/p70S6K pathway and MAPKs, leading to apoptotic cell death. We investigated other modes of programmed cell death in these cells and found that Mach increased LC3I/II and Beclin1 and decreased p62, leading to autophagosomes, and suppressed the necroptosis-regulatory proteins RIP1 and MLKL. Our findings provide evidence that the inhibitory effects of Mach against human YD-10B OSCC cells are related to the promotion of apoptosis and autophagy and inhibition of necroptosis and are mediated via focal adhesion molecules.
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Soleymani S, Habtemariam S, Rahimi R, Nabavi SM. The what and who of dietary lignans in human health: Special focus on prooxidant and antioxidant effects. Trends Food Sci Technol 2020. [DOI: 10.1016/j.tifs.2020.10.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Liu G, Zhao Z, Shen M, Zhao X, Xie J, He X, Li C. A Review of Traditional Uses, Phytochemistry, and Pharmacological Properties of the Genus Saururus. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2020; 48:47-76. [PMID: 31964158 DOI: 10.1142/s0192415x20500032] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The genus Saururus, belonging to Saururaceae, contains two species, S. cernuus L. and S. chinensis (Lour) Baill. with common utilization in traditional medicine from Asia to North America for the treatment of edema, beriberi, jaundice, leucorrhea, urinary tract infections, hypertension, hepatitis diseases, and tumors. An extensive review of literature was made on traditional uses, phytochemistry, and ethnopharmacology of Saururus using ethno-botanical books, published articles, and electronic databases. The 147 of chemical constituents have been isolated and identified from S. cernuus and S. chinensis, and lignans, flavonoids, alkaloids, anthraquinones, saponins, and phenols are the major constituents. Various pharmacological investigations in many in vitro and in vivo models have revealed the potential of the genus Saururus with anti-inflammatory, antitumor, anti-oxidant, hepatoprotective, antimelanogenic, lipid-lowering, and bone protective activities, supporting the rationale behind numerous of its traditional uses. Due to the noteworthy pharmacological properties, Saururus can be a better option for new drug discovery. Data regarding many aspects of this plant such as toxicology, pharmacokinetics, quality-control measures, and the clinical value of the active compounds is still limited which call for additional studies.
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Affiliation(s)
- Guangxin Liu
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource, Development of Endangered Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi 710062, P. R. China
| | - Zefeng Zhao
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Northwest University, 229 Taibai Road, Xi'an, Shaanxi 710069, P. R. China
| | - Meilun Shen
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource, Development of Endangered Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi 710062, P. R. China
| | - Xue Zhao
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Northwest University, 229 Taibai Road, Xi'an, Shaanxi 710069, P. R. China
| | - Jing Xie
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Northwest University, 229 Taibai Road, Xi'an, Shaanxi 710069, P. R. China
| | - Xirui He
- Honghui Hospital, Xi'an Jiaotong University, 76 Nanguo Road, Xi'an, Shaanxi 710054, P. R. China
| | - Cuiqin Li
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource, Development of Endangered Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi 710062, P. R. China
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Zhuang T, Li F, Huang LR, Liang JY, Qu W. Secondary Metabolites from the Plants of the Family Saururaceae and Their Biological Properties. Chem Biodivers 2015; 12:194-220. [DOI: 10.1002/cbdv.201300342] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2013] [Indexed: 12/13/2022]
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Tsai WJ, Shen CC, Tsai TH, Lin LC. Lignans from the aerial parts of Saururus chinensis: isolation, structural characterization, and their effects on platelet aggregation. JOURNAL OF NATURAL PRODUCTS 2014; 77:125-131. [PMID: 24387347 DOI: 10.1021/np400772h] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Five new diaryldimethylbutane lignans, saurulignans A-E (1-5), four new tetrahydrofuran lignans, saurufurins A-D (6-9), and one arylnaphthalene lignan, saurunarin (10), were isolated from Saururus chinensis, along with 18 known compounds. Lignan 5 showed significant inhibition of ADP-induced aggregation with an IC50 value of 9.8 μM and AA-induced aggregation with an IC50 value of 14.0 μM. Compound 19 showed significant activity to inhibit PAF-induced aggregation with an IC50 value of 9.1 μM. In addition, five isolated compounds could induce platelet aggregation. These results suggest that secondary metabolites in S. chinensis have bidirectional regulation on blood clotting and anticlotting effects.
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Affiliation(s)
- Wei-Jern Tsai
- National Research Institute of Chinese Medicine , Taipei, Taiwan
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Lee YJ, Kim J, Yi JM, Oh SM, Kim NS, Kim H, Oh DS, Bang OS, Lee J. Anti-proliferative neolignans from Saururus chinensis against human cancer cell lines. Biol Pharm Bull 2012; 35:1361-6. [PMID: 22863938 DOI: 10.1248/bpb.b110670] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Activity-guided fractionation of an 80% EtOH extract from the aerial parts of Saururus chinensis led to isolation of three anti-proliferative neolignans (1-3) along with four flavonoids (4-7) and four aristolactams (8-11). Their chemical structures were identified by analysis of spectroscopic data. All compounds 1-11 were evaluated for their activities against 28 human cancer cell lines using an in vitro cell proliferation assay. Compounds 1-3 showed potent anti-proliferative activities against cervical (C33a, IC50=0.01 µM for 1; 0.28 µM for 2; 2.80 µM for 3) and lung (NCI-H460, IC50=0.05 µM for 1; 1.37 µM for 2; 6.46 µM for 3) cancer cells without any remarkable cytotoxic effects on human normal lung cells as a control. Taken together, these data demonstrated the identification of anti-proliferative neolignans which are active components of S. chinensis.
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Affiliation(s)
- You Jin Lee
- TKM-Based Herbal Drug Research Group, Herbal Medicine Research Division, Korea Institute of Oriental Medicine, Daejeon 305–811, Republic of Korea
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Ding J, Qi R, Zhou H, Jiao B, Xia Y. Synthesis of (1R,2S)-2-(4′-Allyl-2′,6′-Dimethoxyphenoxyl)-1-(4″-Hydroxy-3″, 5″-Dimethoxyphenyl)Propan-1-ol. JOURNAL OF CHEMICAL RESEARCH 2011. [DOI: 10.3184/174751911x13149759277234] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The asymmetric synthesis of the natural neolignan (1R,2S)-2-(4′-allyl-2′,6′-dimethoxyphenoxyl)-1-(4″-hydroxy-3″,5″-dimethoxyphenyl)propan-1-ol based on an asymmetric dihydroxylation as a key reaction using AD-mix-β to preparing the chiral threo-(1R,2R)-glycerol. The reaction, threo-alcohols were inverted by an SN2 reaction into erythro-(1R,2S)-isomers.
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Affiliation(s)
- Junwei Ding
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Rongwei Qi
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Haitang Zhou
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Bin Jiao
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Yamu Xia
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
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Ao X, Yan L, Meng Q, Zhou T, Wang J, Kim H, Cho J, Kim I. Effects of Saururus chinensis extract supplementation on growth performance, meat quality and slurry noxious gas emission in finishing pigs. Livest Sci 2011. [DOI: 10.1016/j.livsci.2010.12.029] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Shrestha S, Park JH, Lee DY, Cho JG, Lee DG, Cho MH, Jeong TS, Kang HC, Baek NI. Inhibition of Low Density Lipoprotein-oxidation, ACAT-1, and ACAT-2 by Lignans from the Bark of Machilus thunbergii. ACTA ACUST UNITED AC 2011. [DOI: 10.3839/jabc.2011.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Kumar Das S, Kumar Das S, Panda G. Formal Total Synthesis of (-)-Raphidecursinol B. European J Org Chem 2010. [DOI: 10.1002/ejoc.201000619] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Chin YW, Cai XF, Ahn KS, Lee HK, Oh SR. Cytotoxic Sesquilignans from the Roots of Saururus chinensis. B KOREAN CHEM SOC 2010. [DOI: 10.5012/bkcs.2010.31.7.2088] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Lignan, sesquilignans and dilignans, novel HIV-1 protease and cytopathic effect inhibitors purified from the rhizomes of Saururus chinensis. Antiviral Res 2009; 85:425-8. [PMID: 19900481 DOI: 10.1016/j.antiviral.2009.11.002] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2009] [Revised: 10/20/2009] [Accepted: 11/03/2009] [Indexed: 11/27/2022]
Abstract
Five lignans were isolated from the ethyl acetate extracts of Saururus chinensis rhizomes and evaluated for anti-HIV-1 activity. Their structures were elucidated as two dilignans, manassantin A (1), manassantin B (2), two sesquilignans, saucerneol B (3) and saucerneol C (4), and a new lignan, saururin B (5) by spectroscopic analysis. Of these components, manassantin A (1) and saururin B (5) showed dose-dependent inhibitory activities on HIV-1 protease with IC(50) values of 38.9 and 5.6 microM. In addition, manassantins A (1), B (2) and saucerneol B (3) inhibited HIV-1-induced cytopathic effects in a human T lymphoblastoid cell line with IC(100) values of 1.0, 1.0 and 0.2 microM, respectively. Of these active constituents, saucerneol B (3) showed the most potent and selective anti-HIV-1 activity (IC(100) of 0.2 microM, CC(0) of >125.0 microM, and SI of >520.8).
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Choi MS, Kim EC, Lee HS, Kim SK, Choi HM, Park JH, Han JB, An HJ, Um JY, Kim HM, Han AR, Hong MC, Bae H, Min BI. Inhibitory effects of Saururus chinensis (LOUR.) BAILL on the development of atopic dermatitis-like skin lesions in NC/Nga mice. Biol Pharm Bull 2008; 31:51-6. [PMID: 18175941 DOI: 10.1248/bpb.31.51] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The present study was performed to examine whether the leaves of Saururus chinensis (LOUR.) BAILL (SC), an herb used for the management of various skin diseases including atopic dermatitis (AD) in Eastern countries, inhibited the development of AD-like skin lesions in NC/Nga mice which was induced by repeated application of picryl chloride (PiCl). The efficacy of SC was judged by measurement of skin severity, itching behavior, histological study, serum IgE levels, IL-4 and IFN-gamma in lymph nodes. Oral administration of SC extract to the PiCl-treated NC/Nga mice for 8 weeks (5 d per week) inhibited significantly the development of AD-like skin lesions macroscopically. Histologically, SC inhibited dermatitis changes like hypertrophy, hyperkeratosis, and infiltration of inflammatory cells into epidermis and dermis. The itching behavior and serum IgE level decreased significantly after SC administration. SC administration enhanced IFN-gamma mRNA expression but did not have an effect on IL-4 mRNA expression. These results suggest that SC could inhibit the development of AD-like skin lesions in NC/Nga mice possibly through modulating the Th1/Th2 imbalance by the promoting of Th1 cell response. Thus, SC may be an alternative substance for the management of AD patients.
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Affiliation(s)
- Myoung Suk Choi
- Department of East-West Medicine, Graduate School, Kyung Hee University, Dongdaemoon-gu, Seoul 130-701, Republic of Korea
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Kwon HS, Kim MJ, Jeong HJ, Yang MS, Park KH, Jeong TS, Lee WS. Low-density lipoprotein (LDL)-antioxidant lignans from Myristica fragrans seeds. Bioorg Med Chem Lett 2007; 18:194-8. [PMID: 17998162 DOI: 10.1016/j.bmcl.2007.10.098] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2007] [Revised: 10/22/2007] [Accepted: 10/26/2007] [Indexed: 10/22/2022]
Abstract
Six diarylbutane lignans 1-5 and one aryltetralin lignan 6 were isolated from the methanol (95%) extracts of Myristica fragrans seeds and then 7-methyl ether diarylbutane lignan 4 has proven to be new a compound. Their compounds 1-7 were evaluated for LDL-antioxidant activity to identify the most potent LDL-antioxidant 3 with an IC50 value of 2.6 microM in TBARS assay. Due to its potency, compound 3 was tested for complementary in vitro investigations, such as lag time (140 min at 1.0 microM), relative electrophoretic mobility (REM) of ox-LDL (inhibition of 80% at 20 microM and 72% at 10 microM), and fragmentation of apoB-100 (inhibition of 93% at 20 microM) on copper-mediated LDL oxidation. In macrophage-mediated LDL oxidation, the TBARS formation was also inhibited by compound 3.
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Affiliation(s)
- Hyun Sook Kwon
- Division of Applied Life Science (BK21 Program), EB-NCRC, Institute of Agriculture and Life Science, Gyeongsang National University, Jinju 660-701, Republic of Korea
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Xu MZ, Lee WS, Han JM, Oh HW, Park DS, Tian GR, Jeong TS, Park HY. Antioxidant and anti-inflammatory activities of N-acetyldopamine dimers from Periostracum Cicadae. Bioorg Med Chem 2006; 14:7826-34. [PMID: 16919462 DOI: 10.1016/j.bmc.2006.07.063] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2006] [Revised: 07/28/2006] [Accepted: 07/28/2006] [Indexed: 11/17/2022]
Abstract
A known N-acetyldopamine dimer, (2R,3S)-2-(3',4'-dihydroxyphenyl)-3-acetylamino-7-(N-acetyl-2''-aminoethyl)-1,4-benzodioxane (1) and a new N-acetyldopamine dimer, (2R,3S)-2-(3',4'-dihydroxyphenyl)-3-acetylamino-7-(N-acetyl-2''-aminoethylene)-1,4-benzodioxane (2) were isolated from the methanolic extracts of Periostracum Cicadae. Compounds 1 and 2 inhibited the Cu2+ -mediated, 2,2'-azobis(2-amidinopropane) hydrochloride (AAPH)-mediated, and 3-morpholinosydnonimine (SIN)-1-mediated LDL oxidation in the thiobarbituric acid-reactive substances (TBARS) assay. The antioxidant activities of 1 and 2 were tested with respect to other parameters, such as lag time of conjugated diene formation, relative electrophoretic mobility (REM), and apoB-100 fragmentation on copper-mediated LDL-oxidation. Compounds 1 and 2 also showed 1,1-diphenyl-2-picrylhydrasyl (DPPH) radical scavenging activity. Compound 2 was more efficient than compound 1 at inhibiting the reactive oxygen species (ROS) generation, nitric oxide (NO) production, and nuclear factor-kappaB (NF-kappaB) activity as well as the expression of pro-inflammatory molecules such as inducible nitric oxide synthase (iNOS), interleukin (IL)-6, tumor necrosis factor (TNF)-alpha, and cyclooxygenase (COX)-2 in LPS-induced RAW264.7 cells.
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Affiliation(s)
- Ming-Zhe Xu
- Insect Resources Research Center, KRIBB, Daejeon 305-806, Republic of Korea
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Rezende KR, Davino SC, Barros SBM, Kato MJ. Antioxidant activity of aryltetralone lignans and derivatives from Virola sebifera (Aubl.). Nat Prod Res 2005; 19:661-6. [PMID: 16076635 DOI: 10.1080/14786410412331302118] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Aryltetralone lignans bearing methylenedioxy groups (1a-b; 2a-b) were isolated from seeds of Virola sebifera. Their antioxidant activities were evaluated by inhibition of lipid peroxidation as indicated by TBARS and chemiluminescence emission (CL) assays. The lignan 1c, 'having a 2'-hydroxy-4',5'-methylenedioxyphenyl group, was the most active compound with TBARS/CL Q 1/2 values of 0.89 and 0.10 microg/mL, respectively. The catechol derivatives 3 and 4, obtained by demethylenation of lignans 1a and 2a, were of similar activity to 1c, and all were much more effective as antioxidants than alpha-tocopherol.
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Affiliation(s)
- Kênnia R Rezende
- Faculdade de Farmácia, Universidade Federal de Goiás, Goiânia, GO, Brazil
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Kim DH, Lee HJ, Oh YJ, Kim MJ, Kim SH, Jeong TS, Baek NI. Iridoid glycosides isolated fromOldenlandia diffusa inhibit LDL-oxidation. Arch Pharm Res 2005; 28:1156-60. [PMID: 16276972 DOI: 10.1007/bf02972979] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
An iridoid glycoside, oldenlandoside III (5) was isolated from the n-butanol fraction of methanol extracts of the aerial parts of Oldenlandia diffusa Roxb. along with six others previously characterized iridoid glycosides; geniposidic acid (1), scandoside (2), feretoside (3), 10-omicron-benzoylscandoside methyl ester (4), asperulosidic acid (6) and deacetylasperulosidic acid (7). Compounds 1, 2, and 7 inhibited LDL-oxidation, and showed 63.3+/-2.0, 62.2+/-1.6, and 63.8+/-1.5% inhibition, respectively, at a concentration of 20 microg/mL.
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Affiliation(s)
- Dong-Hyun Kim
- Graduate School of Biotechnology, Kyung Hee University, Suwon, Korea
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Seo BR, Yoo CB, Park HJ, Choi JW, Seo K, Choi SK, Lee KT. Saucernetin-8 isolated from Saururus chinensis induced the differentiation of human acute promyelocytic leukemia HL-60 cells. Biol Pharm Bull 2005; 27:1594-8. [PMID: 15467202 DOI: 10.1248/bpb.27.1594] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The present work was performed to investigate the effects of saucernetin-8 on proliferation and differentiation of human leukemia HL-60 cells as well as the underlying mechanisms for these effects. Saucernetin-8 exhibited a potent antiproliferative activity against HL-60 cells. This compound was also found to be a potent inducer of differentiation in human leukemia derived HL-60 cells through the examination of differentiation markers, as assessed by nitroblue tetrazolium reduction test, esterase activity assay, phagocytic activity assay, morphology change, and expression of CD14 and CD66b surface antigens. These results suggest that saucernetin-8 induces the differentiation of human leukemia cells to granulocytes and monocytes/macrophages lineage. Moreover, DNA flow-cytometry indicated that saucernetin-8 induced a G1 phase arrest of HL-60 cells. The protein and mRNA expression levels of p21 were up-regulated during saucernetin-8-dependent HL-60 cell differentiation, whereas the level of c-myc was down-regulated. Taken together, our results suggest that saucernetin-8 may have potential as a therapeutic agent in human leukemia.
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Affiliation(s)
- Bo-Rim Seo
- College of Pharmacy, Kyung-Hee University, Dongdaemun-Ku, Seoul, Korea
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Lee WS, Baek YI, Kim JR, Cho KH, Sok DE, Jeong TS. Antioxidant activities of a new lignan and a neolignan from Saururus chinensis. Bioorg Med Chem Lett 2005; 14:5623-8. [PMID: 15482936 DOI: 10.1016/j.bmcl.2004.08.054] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2004] [Revised: 08/24/2004] [Accepted: 08/25/2004] [Indexed: 12/12/2022]
Abstract
A new diarylbutane lignan, 2'-hydroxy dihydroguaiaretic acid (4), and a known 8-O-4'-type neolignan, machilin D (5), were isolated from the ethyl acetate extracts of the underground parts of Saururus chinensis. Compounds 4 and 5 exhibited low-density lipoprotein (LDL)-antioxidant activity in the thiobarbituric acid-reactive substances (TBARS) assay (4: IC(50)=3.3 microM and 5: IC(50)=3.8 microM), the lag time of conjugated diene production, the relative electrophoretic mobility (REM) of ox-LDL, the apoB-100 fragmentation on copper-mediated LDL oxidation and the macrophage-mediated LDL oxidation, and radical DPPH scavenging activity.
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Affiliation(s)
- Woo Song Lee
- National Research Laboratory of Lipid Metabolism & Atherosclerosis, Korea Research Institute of Bioscience and Biotechnology, 52 Oun, Yusong, Daejeon 305-333, Republic of Korea
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Kang SY, Lee KY, Koo KA, Yoon JS, Lim SW, Kim YC, Sung SH. ESP-102, a standardized combined extract of Angelica gigas, Saururus chinensis and Schizandra chinensis, significantly improved scopolamine-induced memory impairment in mice. Life Sci 2005; 76:1691-705. [PMID: 15698848 DOI: 10.1016/j.lfs.2004.07.029] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2004] [Accepted: 07/22/2004] [Indexed: 10/25/2022]
Abstract
We assessed the effects of oral treatments of ESP-102, a standardized combined extract of Angelica gigas, Saururus chinensis and Schizandra chinensis, on learning and memory deficit. The cognition-enhancing effect of ESP-102 was investigated in scopolamine-induced (1 mg/kg body weight, s.c.) amnesic mice with both passive avoidance and Morris water maze performance tests. Acute oral treatment (single administration prior to scopolamine treatment) of mice with ESP-102 (doses in the range of 10 to 100 mg/kg body weight) significantly reduced scopolamine-induced memory deficits in the passive avoidance performance test. Another noteworthy result included the fact that prolonged oral daily treatments of mice with much lower amounts of ESP-102 (1 and 10 mg/kg body weight) for ten days reversed scopolamine-induced memory deficits. In the Morris water maze performance test, both acute and prolonged oral treatments with ESP-102 (single administration of 100 mg/kg body weight or prolonged daily administration of 1 and 10 mg/kg body weight for ten days, respectively, significantly ameliorated scopolamine-induced memory deficits as indicated by the formation of long-term and/or short-term spatial memory. In addition, we investigated the effects of ESP-102 on neurotoxicity induced by amyloid-beta peptide (Abeta25-35) or glutamate in primary cultured cortical neurons of rats. Pretreatment of cultures with ESP-102 (0.001, 0.01 and 0.1 mug/ml) significantly protected neurons from neurotoxicity induced by either glutamate or Abeta25-35. These results suggest that ESP-102 may have some protective characteristics against neuronal cell death and cognitive impairments often observed in Alzheimer's disease, stroke, ischemic injury and other neurodegenerative diseases.
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Affiliation(s)
- So Young Kang
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 151-742, Republic of Korea
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Jeong TS, Kim MJ, Yu H, Kim KS, Choi JK, Kim SS, Lee WS. (E)-Phenyl- and -heteroaryl-substituted O-benzoyl-(or acyl)oximes as lipoprotein-associated phospholipase A2 inhibitors. Bioorg Med Chem Lett 2005; 15:1525-7. [PMID: 15713421 DOI: 10.1016/j.bmcl.2004.11.063] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2004] [Revised: 11/25/2004] [Accepted: 11/25/2004] [Indexed: 10/26/2022]
Abstract
A series of (E)-phenyl- and -heteroaryl-substituted O-benzoyl- (or acyl)oximes 3a-n were synthesized for evaluating their human lipoprotein-associated phospholiphase A2 (Lp-PLA2) inhibitory activities. The less lipophilic derivatives 3a-c showed the most potent in vitro inhibitory activity on human Lp-PLA2.
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Affiliation(s)
- Tae-Sook Jeong
- National Research Laboratory of Lipid Metabolism and Atherosclerosis, Korea Research Institute of Bioscience and Biotechnology, Daejeon 305-333, Republic of Korea
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Thongphasuk P, Suttisri R, Bavovada R, Verpoorte R. Antioxidant lignan glucosides from Strychnos vanprukii. Fitoterapia 2005; 75:623-8. [PMID: 15567235 DOI: 10.1016/j.fitote.2004.04.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2003] [Accepted: 04/03/2004] [Indexed: 10/26/2022]
Abstract
From the stem of Strychnos vanprukii, two new lignan glucosides, vanprukoside (1) and strychnoside (2), were isolated together with the known lignan glucoside, (+)-lyoniresinol-3 alpha-O-beta-glucopyranoside (3). The structures of these compounds were elucidated on the basis of their spectroscopic data. All three compounds exhibited antioxidant activity.
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Affiliation(s)
- Piyanuch Thongphasuk
- Department of Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok 10330, Thailand
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24
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Jung KA, Song TC, Han D, Kim IH, Kim YE, Lee CH. Cardiovascular Protective Properties of Kiwifruit Extracts in Vitro. Biol Pharm Bull 2005; 28:1782-5. [PMID: 16141561 DOI: 10.1248/bpb.28.1782] [Citation(s) in RCA: 68] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
It is currently accepted that the consumption of fruit-derived antioxidants such as vitamin C, carotenoids, and flavonoids provides a preventive effect against cardiovascular disease. The purpose of the present study was to investigate potential cardiovascular protective properties of aqueous and 70% ethanol extracts from kiwifruit by analyzing the antioxidative, antihypertensive, hypocholesterolemic, and fibrinolytic activities in vitro. Aqueous and 70% ethanol extracts at 50 mg/ml showed DPPH-radical scavenging activities of 72.31% and 70.75%, respectively. Total antioxidant activity in linoleic acid emulsion was 85-88% at 10 mg/ml and 96-98% at 50 mg/ml of kiwifruit extract. Inhibitory activities against angiogensin I-converting enzyme of kiwifruit extracts were 21-26% at 10 mg/ml and 46-49% at 50 mg/ml, and inhibitory activities on HMG-CoA reductase were 13-14% at 10 mg/ml and 19-30% at 50 mg/ml. Fibrinolytic activity of kiwifruit was also observed at a high concentration of 100 mg/ml in both aqueous and 70% EtOH extracts. Based on our results, kiwifruit have potential cardiovascular protective properties in vitro.
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Affiliation(s)
- Kyung-Ah Jung
- Food Processing Technology, Korea Food Research Institute, Kyonggi-do, Republic of Korea
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25
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Lee WS, Lee DW, Baek YI, An S, An SJ, Cho KH, Choi YK, Kim HC, Park HY, Bae KH, Jeong TS. Human ACAT-1 and -2 inhibitory activities of saucerneol B, manassantin A and B isolated from Saururus chinensis. Bioorg Med Chem Lett 2004; 14:3109-12. [PMID: 15149654 DOI: 10.1016/j.bmcl.2004.04.023] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2004] [Revised: 04/08/2004] [Accepted: 04/09/2004] [Indexed: 11/23/2022]
Abstract
The sesquineolignan, saucerneol B (1), and dineolignans, manassantin A (2), and manassantin B (3), were isolated from the methanol extracts of Saururus chinensis root and elucidated by their spectroscopic data analysis. Compounds 1-3 inhibited hACAT-1 and hACAT-2 with IC(50) values of 43.0 and 124.0 microM for 1, of 39.0 and 8.0 microM for 2, of 82.0 microM and only 32% inhibition at 1mM for 3, respectively. The EtOAc-soluble fraction, which contained compounds 1-3, of methanol extracts of S. chinensis exhibited strong cholesterol-lowering effect in high cholesterol-fed mice.
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Affiliation(s)
- Woo Song Lee
- Korea Research Institute of Bioscience and Biotechnology, 52 Oun, Yusong, Daejeon 305-333, Republic of Korea
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26
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Jeong TS, Kim KS, Kim JR, Cho KH, Lee S, Lee WS. Novel 3,5-diaryl pyrazolines and pyrazole as low-density lipoprotein (LDL) oxidation inhibitor. Bioorg Med Chem Lett 2004; 14:2719-23. [PMID: 15125921 DOI: 10.1016/j.bmcl.2004.03.072] [Citation(s) in RCA: 58] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2004] [Revised: 03/25/2004] [Accepted: 03/25/2004] [Indexed: 11/18/2022]
Abstract
Compounds 4a-j and 5 were synthesized by cyclocondensation of 3a-j and hydrazine and showed significant LDL-antioxidant activities in the TBARS assay, the lag time of conjugated diene production, the relative electrophoretic mobility (REM) of ox-LDL, the apoB-100 fragmentation, and the macrophage-mediated LDL oxidation. Among compounds 4a-j and 5, 4a was found to be the most active compound as an inhibitor of LDL oxidation and 4a (IC50 = 0.1 microM) was 6-fold more potent than probucol (IC50 = 0.6 microM) in the TBARS assay.
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Affiliation(s)
- Tae-Sook Jeong
- National Research Laboratory of Lipid Metabolism & Atherosclerosis, Korea Research Institute of Bioscience and Biotechnology, Daejeon 305-333, South Korea
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27
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Kim RG, Shin KM, Kim YK, Jeong HJ, Ha J, Choi JW, Park HJ, Lee KT. Inhibition of methanol extract from the aerial parts of Saururus chinensis on lipopolysaccharide-induced nitric oxide and prostagladin E2 production from murine macrophage RAW 264.7 cells. Biol Pharm Bull 2003; 26:481-6. [PMID: 12673029 DOI: 10.1248/bpb.26.481] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
As an attempt to search for bioactive natural products exerting antiinflammatory activity, we have evaluated the effects of the methanol extract from the aerial parts of Saururus chinensis (LOUR.) BAILL (Saururaceae) on lipopolysaccharide (LPS)-induced nitric oxide (NO) and prostaglandin E(2) (PGE(2)) release by the macrophage cell line RAW 264.7. Our data indicate that this extract is a potent inhibitor of NO production and it also significantly decreased PGE(2) release. Consistent with these observations, the protein and mRNA expression level of inducible NO synthase (iNOS) and cyclooxygenase (COX)-2 was inhibited by MeOH extracts of the aerial part of S. chinensis (SCM) in a dose-dependent manner. Furthermore, SCM inhibited the LPS-induced DNA binding activity of nuclear factor-kappaB (NF-kappaB), which was associated with decreased p65 protein levels in the nucleus. These results suggest that SCM inhibits LPS-induced iNOS and COX-2 expression by blocking NF-kappaB activation.
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Affiliation(s)
- Rung-Gyu Kim
- College of Pharmacy, Kyung-Hee University, Seoul, Korea
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Rezende KR, Kato MJ. Dibenzylbutane and aryltetralone lignans from seeds of Virola sebifera. PHYTOCHEMISTRY 2002; 61:427-432. [PMID: 12377238 DOI: 10.1016/s0031-9422(02)00242-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Two lignans rel-(8R, 8'R)-3,4:3',4'-bis-(methylenedioxy)-7.7'-dioxo-lignan and (7'R,8'S,8S)-2'-hydroxy-3,4:4',5'-bis-(methylenedioxy)-7-oxo-2,7'-cyclolignan were isolated from seeds of Virola sebifera. The cyclolignan showed two atropisomers as determined by 1H NMR spectroscopy at low temperature.
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Affiliation(s)
- Kênnia R Rezende
- Instituto de Química, Universidade de São Paulo, Av. Prof. Lineu Prestes, 748, CEP 05508-900, SP, São Paulo, Brazil
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