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mTOR inhibitor, gemcitabine and PD-L1 antibody blockade combination therapy suppresses pancreatic cancer progression via metabolic reprogramming and immune microenvironment remodeling in Trp53 flox/+LSL-Kras G12D/+Pdx-1-Cre murine models. Cancer Lett 2023; 554:216020. [PMID: 36442772 DOI: 10.1016/j.canlet.2022.216020] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 11/08/2022] [Accepted: 11/22/2022] [Indexed: 11/26/2022]
Abstract
OBJECTIVE Resistance to immunotherapy and chemotherapy hinders the prognosis of pancreatic cancer(PC). We hypothesized that the combination of mTOR inhibitor sirolimus and gemcitabine would change the metabolic landscape of PC and enhance the anti-PD-L1 therapy. METHODS In KPC mice, the following regimens were administered and tumor growth inhibition rates(TGI%) were calculated: sirolimus(S), PD-L1 antibody(P), gemcitabine(G), sirolimus + PD-L1 antibody(SP), sirolimus + gemcitabine(SG), PD-L1 + gemcitabine(PG) and sirolimus + PD-L1 antibody + gemcitabine(SPG). The metabolic changes of tumors were identified by LC-MS and subpopulations of immune cells were measured by flow cytometry. Sirolimus treated macrophages were co-cultured with PC cells in vitro, and the metabolic changes of macrophages and tumor cells as well as tumor cells' viability were detected. RESULTS The monotherapy of S, P and G didn't inhibit tumor growth significantly. The combination of SP, PG and SG didn't improve the TGI% significantly compared with monotherapy. However, the TGI% of SPG combination was higher than other groups. The proportion of CD68+ macrophages increased in the peripheral blood and CD8+ T cells decreased in the tumor tissues after SPG treatment. LC-MS identified 42 differential metabolites caused by sirolimus in SPG group, among which 10 metabolites had potential effects on macrophages. Sirolimus treated M1 and M2 macrophages inhibited the proliferation of tumor cells and decreased tumor cells' glycolysis. The glycolysis of M2 macrophages was increased by sirolimus. CONCLUSIONS mTOR inhibitor can change the immune microenvironment of PC via metabolic reprogramming, thus promoting the efficacy of PD-L1 blockade when combined with gemcitabine.
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Identification of a novel α-glucosidase inhibitor from Melastoma dodecandrum Lour. fruits and its effect on regulating postprandial blood glucose. Food Chem 2023; 399:133999. [PMID: 36037688 DOI: 10.1016/j.foodchem.2022.133999] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 08/18/2022] [Accepted: 08/20/2022] [Indexed: 12/22/2022]
Abstract
Melastoma dodecandrum Lour. (MDL) extracts have shown potent α-glucosidase inhibitory activity, suggesting MDL might be a good source of α-glucosidase inhibitors. The aim of the study was to identify compounds in MDL extracts with α-glucosidase inhibitory activities and evaluate their effect on postprandial blood glucose as well as elucidating the underlying mechanisms of inhibition. A total of 34 polyphenols were identified in MDL fruits, among which 10 anthocyanins and three proanthocyanidin derivatives were discovered for the first time. Dosing mice with MDL extracts (100 mg/kg body weight, by gavage) was associated with a significantly decrease in postprandial blood glucose concentrations after oral administration of maltose. The most potent α-glucosidase inhibitor was identified as casuarictin (IC50 of 0.21 μg/mL). Casuarictin bound competitively to α-glucosidase, occupying not only the catalytic site but also forming strong hydrogen bonds with α-glucosidase residues. Therefore, casuarictin derived from MDL fruits might be used as novel α-glucosidase inhibitor in functional foods or other dietary products.
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Mengesha AK, Birru EM, Adugna M. Anti-Diarrheal Activities of Hydromethanolic Crude Extract and Solvent Fractions of Acacia seyal (Fabaceae) Roots in Mice. Clin Pharmacol 2022; 14:99-110. [PMID: 36411816 PMCID: PMC9675325 DOI: 10.2147/cpaa.s383896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 10/04/2022] [Indexed: 11/16/2022] Open
Abstract
Background Traditionally, the root of Acacia seyal is used for the treatment of diarrhea. However, its efficacy has not been scientifically evaluated. Thus, this study aimed to validate the antidiarrheal activities using hydromethanolic crude extract and solvent fractions of Acacia seyal roots in mice. Methods In each model, mice were divided into five groups of six mice at random. Group I mice (negative controls) were given 1mL/100 g distilled water for hydromethanolic crude extract tests as well as n-hexane, ethyl acetate and aqueous fractions, while groups II, III, and IV were given 100 mg/kg, 200 mg/kg, and 400 mg/kg of hydromethanolic crude extract or solvent fractions. Group V mice (positive control) were given 3 mg/kg Loperamide for the castor oil-induced diarrhea and enteropooling test. All of the doses were taken orally. However, Atropine sulfate, 5 mg/kg, was given intraperitoneally for the gastrointestinal motility test. Statistical Package for the Social Sciences (SPSS) version 26 was used to examine the statistical significance of differences in the number and weight of wet and total feces, distance traveled by a charcoal meal, and intestinal fluid accumulation across groups. Results When compared to the vehicle-treated group, the crude extract and n-hexane fraction notably delayed the onset of diarrhea, reduced the weight and volume of intestinal contents, and hindered the intestinal transit at all tested doses (P < 0.001). The ethyl acetate fraction also significantly (P < 0.001) decreased the weight of intestinal content at all doses examined. Only at 400 mg/kg did the aqueous fraction statistically (P < 0.01) prolonged the onset of diarrhea and impeded gastrointestinal motility. Conclusion According to this study, the hydromethanolic crude extract and solvent fractions of Acacia seyal roots have promising antidiarrheal effects.
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Affiliation(s)
- Assefa Kebad Mengesha
- Department of Pharmacology, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
- Correspondence: Assefa Kebad Mengesha, Email
| | - Eshetie Melese Birru
- Department of Pharmacology, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
| | - Meaza Adugna
- Department of Pharmacology, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
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Huang G, Ge Y, Gui Z, Zhu M, Liu J, Wang H. Toxicity of Melastoma dodecandrum Lour. and its effects on lipopolysaccharide-induced inflammation and oxidative stress. Exp Ther Med 2021; 22:807. [PMID: 34093763 DOI: 10.3892/etm.2021.10239] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Accepted: 03/12/2021] [Indexed: 12/13/2022] Open
Abstract
Melastoma dodecandrum Lour. (MDL) is component used in traditional Chinese medicine that is widely distributed throughout southern China. MDL has been long utilized in clinical treatment for various conditions, such as inflammation. However, the toxicity and underlying anti-inflammatory mechanism of MDL remain to be elucidated. In the present study, Sprague-Dawley rats received intragastric administration of MDL for 2 months, and the toxicity of MDL was investigated. The rats were treated with lipopolysaccharide (LPS) for 8 h to determine the potential anti-inflammatory mechanism of MDL. The results demonstrated that MDL alone did not affect the expression levels of factors associated with inflammation (IL-1β, IL-6 and TNF-α) and oxidative stress [malondialdehyde (MDA), superoxide dismutase (SOD) and nitric oxide (NO)] in the rat serum and exerted no effects on rat liver and kidneys. By contrast, MDL attenuated LPS-induced inflammation and oxidative stress by regulating specific cytokines, such as IL-1β, IL-6, TNF-α, MDA, SOD and NO in the rat serum and alleviated LPS-induced liver and kidney damage. Additionally, compared with the LPS group, MDL inhibited CD4+ T cell differentiation into Th1 and Th17 cells and enhanced CD4+ T cell differentiation into Th2 and Treg cells. MDL also suppressed reactive oxygen species (ROS) production and mitochondrial apoptosis by modulating mitochondrial apoptosis-related proteins in spleen CD4+ T cells. In conclusion, the results of the present study demonstrated the non-toxic nature of MDL and revealed that it alleviated LPS-induced inflammation and oxidative stress by regulating differentiation and ROS production in CD4+ T cells.
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Affiliation(s)
- Gang Huang
- Department of Traditional Chinese Medicine, Lishui People's Hospital, Lishui, Zhejiang 323000, P.R. China
| | - Yuli Ge
- Department of Infection, Lishui People's Hospital, Lishui, Zhejiang 323000, P.R. China
| | - Zhihong Gui
- Department of Nephrology, Lishui People's Hospital, Lishui, Zhejiang 323000, P.R. China
| | - Meixiao Zhu
- Department of Pharmacy, Lishui People's Hospital, Lishui, Zhejiang 323000, P.R. China
| | - Jin Liu
- Department of Scientific Research Office, Lishui People's Hospital, Lishui, Zhejiang 323000, P.R. China
| | - Huafu Wang
- Department of Clinical Pharmacology, Lishui People's Hospital, Lishui, Zhejiang 323000, P.R. China
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Zheng WJ, Ren YS, Wu ML, Yang YL, Fan Y, Piao XH, Ge YW, Wang SM. A review of the traditional uses, phytochemistry and biological activities of the Melastoma genus. JOURNAL OF ETHNOPHARMACOLOGY 2021; 264:113322. [PMID: 32871236 DOI: 10.1016/j.jep.2020.113322] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 07/25/2020] [Accepted: 08/22/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The genus Melastoma consists of approximately 100 species distributed widely in tropical and subtropical countries, and Melastoma species are often used for medicinal purposes, such as treatment for bleeding, diarrhea, diabetes, and gynecological tumors by local people, mostly in Southeast Asian countries. AIM OF THE REVIEW The present review summarizes the traditional uses, phytochemistry and pharmacology of species belonging to Melastoma to suggest further research strategies and to facilitate the exploitation of the therapeutic potential of Melastoma species for the treatment of human disorders. MATERIALS AND METHODS Information related to the traditional uses, phytochemistry and pharmacological activities was systematically collected by searching for the word "Melastoma" in electronic databases, including SciFinder, Web of Science, PubMed, and Google Scholar, from Apr. 1968 until Dec. 2019. RESULTS A systematic literature survey revealed that Melastoma spp. are widely distributed in southern Asia to northern Oceania and the Pacific Islands and are traditionally used to treat bleeding, diarrhea, swelling, and gynecological tumors. Approximately 142 compounds, including flavonoids, tannins, phenylpropanoids, organic acids, terpenoids, and steroids, have been reported from Melastoma spp. Different extracts have been evaluated for their pharmacological activities, including anti-inflammatory, hemostatic, anticoagulant, cytotoxic, antibacterial, antioxidant, hepatoprotective, gastroprotective and hypoglycemic activities. CONCLUSIONS Melastoma spp. are popularly used in Southeast Asian countries as effective herbs and are rich in flavonoids, tannins and organic acids with valuable medicinal properties. However, additional studies of the chemical constituents and the mechanism-based pharmacological activities of many members of Melastoma are still needed for developing new plant-derived drugs. In addition, studies on the clinical safety and efficacy of Melastoma are also needed.
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Affiliation(s)
- Wen-Jun Zheng
- School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, 510006, China; Key Laboratory of Digital Quality Evaluation of Chinese Materia Medica of State Administration of TCM, Guangdong Pharmaceutical University, Guangzhou, 510006, China; Engineering & Technology Research Center for Chinese Materia Medica Quality of the Universities of Guangdong Province, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Ying-Shan Ren
- School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, 510006, China; Key Laboratory of Digital Quality Evaluation of Chinese Materia Medica of State Administration of TCM, Guangdong Pharmaceutical University, Guangzhou, 510006, China; Engineering & Technology Research Center for Chinese Materia Medica Quality of the Universities of Guangdong Province, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Miao-Li Wu
- School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, 510006, China; Key Laboratory of Digital Quality Evaluation of Chinese Materia Medica of State Administration of TCM, Guangdong Pharmaceutical University, Guangzhou, 510006, China; Engineering & Technology Research Center for Chinese Materia Medica Quality of the Universities of Guangdong Province, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Ya-Ling Yang
- School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, 510006, China; Key Laboratory of Digital Quality Evaluation of Chinese Materia Medica of State Administration of TCM, Guangdong Pharmaceutical University, Guangzhou, 510006, China; Engineering & Technology Research Center for Chinese Materia Medica Quality of the Universities of Guangdong Province, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Yi Fan
- Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Xiu-Hong Piao
- School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, 510006, China; Key Laboratory of Digital Quality Evaluation of Chinese Materia Medica of State Administration of TCM, Guangdong Pharmaceutical University, Guangzhou, 510006, China; School of Life Sciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, 510006, China.
| | - Yue-Wei Ge
- School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, 510006, China; Key Laboratory of Digital Quality Evaluation of Chinese Materia Medica of State Administration of TCM, Guangdong Pharmaceutical University, Guangzhou, 510006, China; Engineering & Technology Research Center for Chinese Materia Medica Quality of the Universities of Guangdong Province, Guangdong Pharmaceutical University, Guangzhou, 510006, China.
| | - Shu-Mei Wang
- School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, 510006, China; Key Laboratory of Digital Quality Evaluation of Chinese Materia Medica of State Administration of TCM, Guangdong Pharmaceutical University, Guangzhou, 510006, China; Engineering & Technology Research Center for Chinese Materia Medica Quality of the Universities of Guangdong Province, Guangdong Pharmaceutical University, Guangzhou, 510006, China.
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Extraction, Enrichment, and Quantification of Main Antioxidant Aglycones of Flavonoids and Tannins from Melastoma Dodecandrum Lour.: Guided by UPLC-ESI-MS/MS. J CHEM-NY 2019. [DOI: 10.1155/2019/2793058] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
The objective of this work was to determine the main antioxidant aglycones of flavonoids and tannins in antioxidant extracts from Melastoma dodecandrum Lour. (MD), based on its extraction and purification process optimization and component identification by UPLC-ESI-MS/MS. Firstly, the ultrasound-assisted extraction (UAE) process for antioxidants was established by using single factor tests and response surface optimization. Evaluating by DPPH radical scavenging assay, the antioxidant capacity of MD could reach 2742.27 ± 93.86 (μmol Trolox/g) under the optimized conditions including methanol concentration (61%, v/v), extraction time (45 min), liquid-solid ratio (0.46 ml/mg), and extraction temperature (25°C). Then, the antioxidants in the solution were enriched by using macroporous resins. Because of the highest adsorption capacity and desorption ratio, HPD 500 was selected out of 14 macroporous resins for further study based on the static adsorption and desorption tests. The adsorption mechanism of the HPD 500 resin presented that pseudo-first-order kinetics model and Freundlich isotherm model could adequately explain the adsorption process. After the antioxidants were dynamically saturated by HPD 500, the column was eluted with different concentrations of ethanol (0, 25, 50, 75, and 100%, v/v). Among the above five ethanol fractions, 50% ethanol fraction showed the strongest antioxidant activity and more than 95% antioxidants adsorbed in HPD500 could be eluted by 75% ethanol. Guided by analysis results of UPLC-ESI-MS/MS, main antioxidant aglycones of flavonoids and tannins in each ethanol elution fraction were quantitatively detected. Finally, according to the correlation analysis between the antioxidant capacity of each ethanol elution fraction and its content of 10 main flavonoids and phenolic acids, the antioxidant activities of MD could mainly contribute to tannins containing phenolic units such as ellagic acid and/or gallic acid. The results of this work would provide useful information for the production of antioxidants from MD. Thus, the analysis methods could also be a quality control tool for material or products related with MD.
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Goenka S, Ceccoli J, Simon SR. Anti-melanogenic activity of ellagitannin casuarictin in B16F10 mouse melanoma cells. Nat Prod Res 2019; 35:1830-1835. [PMID: 31274002 DOI: 10.1080/14786419.2019.1636242] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Ellagitannins such as casuarictin (CAS), isolated from clove extracts, have been shown to have superior benefits such as antioxidant and anti-inflammatory activity, but there have been no reports on their capacity to inhibit melanogenesis. Inhibition of melanogenesis by novel natural products has gained attention for cosmetic applications such as skin lightening. Here, we report the effects of CAS on melanogenesis in B16F10 mouse melanoma cells. Our results showed that CAS (30 µM) significantly inhibited intracellular melanogenesis while being nontoxic to B16F10 cells or to HaCaT cells at that concentration. CAS (30 μM) also inhibited intracellular tyrosinase activity as well as mushroom tyrosinase activity; possessed robust copper chelating ability comparable to that of 500 µM kojic acid; and downregulated MITF protein levels, all of which contribute to the inhibitory mechanisms underlying its anti-melanogenic activity. In summary, our results demonstrate that CAS might hold promise as a depigmenting agent for hyperpigmentation disorders.
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Affiliation(s)
- Shilpi Goenka
- Department of Biomedical Engineering, Stony Brook University, Stony Brook, New York, USA
| | | | - Sanford R Simon
- Department of Biomedical Engineering, Stony Brook University, Stony Brook, New York, USA.,Department of Pathology, Stony Brook University, Stony Brook, New York, USA.,Department of Biochemistry and Cellular Biology, Stony Brook University, Stony Brook, New York, USA
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Zheng X, Ren C, Huang S, Li J, Zhao Y. Structure and features of the complete chloroplast genome of Melastoma dodecandrum. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2019; 25:1043-1054. [PMID: 31404219 PMCID: PMC6656900 DOI: 10.1007/s12298-019-00651-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Revised: 12/27/2018] [Accepted: 02/19/2019] [Indexed: 05/29/2023]
Abstract
Melastoma dodecandrum, the only creeping species in the Melastoma genus, serves as a medicinal herb in southeast China. It belongs to the huge family Melastomataceae, which contains over 5000 species worldwide. In this study, we used next-generation sequencing to determine the complete chloroplast genome sequences of M. dodecandrum, which is a circular molecule of 156,611 bp in length. After annotation, we identified 131 putative genes in total, comprised of 85 protein-coding genes, 38 transfer RNA genes and 8 ribosomal RNA genes. Genome structure, GC content, repeat sequences and codon usage were investigated to gain a comprehensive understanding of this genome. Furthermore, we conducted comparative genome analyses between the M. dodecandrum genome and that of four other Melastomataceae species. Additionally, a phylogenetic analysis was performed based on available chloroplast genomes of Melastomataceae species and several Myrtaceae species, revealing the taxonomic relationships between M. dodecandrum and related species. In conclusion, our study represents the first look into the complete chloroplast genome of M. dodecandrum, providing abundant information for further studies such as species identification, taxonomy and phylogenetic resolution of Melastomataceae species.
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Affiliation(s)
- Xiasheng Zheng
- DNA Barcoding Laboratory for TCM Authentication, Mathematical Engineering Academy of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, 510006 China
| | - Changwei Ren
- Department of Cardiovascular Surgery Center, Beijing Anzhen Hospital, Capital Medical University, Beijing, 100029 China
| | - Song Huang
- DNA Barcoding Laboratory for TCM Authentication, Mathematical Engineering Academy of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, 510006 China
| | - Jing Li
- Traditional Chinese Medicine Gynecology Laboratory in Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou, 510006 China
| | - Ying Zhao
- Traditional Chinese Medicine Gynecology Laboratory in Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou, 510006 China
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Matsumura Y, Kitabatake M, Ouji-Sageshima N, Yasui S, Mochida N, Nakano R, Kasahara K, Tomoda K, Yano H, Kayano SI, Ito T. Persimmon-derived tannin has bacteriostatic and anti-inflammatory activity in a murine model of Mycobacterium avium complex (MAC) disease. PLoS One 2017; 12:e0183489. [PMID: 28827842 PMCID: PMC5565117 DOI: 10.1371/journal.pone.0183489] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Accepted: 08/04/2017] [Indexed: 01/15/2023] Open
Abstract
Nontuberculous mycobacteria (NTM), including Mycobacterium avium complex (MAC), cause opportunistic chronic pulmonary infections. Notably, MAC susceptibility is regulated by various factors, including the host immune system. Persimmon (Ebenaceae Diospyros kaki Thunb.) tannin is a condensed tannin composed of a polymer of catechin groups. It is well known that condensed tannins have high antioxidant activity and bacteriostatic properties. However, it is hypothesized that condensed tannins might need to be digested and/or fermented into smaller molecules in vivo prior to being absorbed into the body to perform beneficial functions. In this study, we evaluated the effects of soluble persimmon-derived tannins on opportunistic MAC disease. Soluble tannins were hydrolyzed and evaluated by the oxygen radical absorbance capacity (ORAC) method. The ORAC value of soluble tannin hydrolysate was approximately five times greater than that of soluble tannin powder. In addition, soluble tannin hydrolysate exhibited high bacteriostatic activity against MAC in vitro. Furthermore, in an in vivo study, MAC infected mice fed a soluble tannin-containing diet showed significantly higher anti-bacterial activity against MAC and less pulmonary granuloma formation compared with those fed a control diet. Tumor necrosis factor α and inducible nitric oxide synthase levels were significantly lower in lungs of the soluble tannin diet group compared with the control diet group. Moreover, proinflammatory cytokines induced by MAC stimulation of bone marrow-derived macrophages were significantly decreased by addition of soluble tannin hydrolysate. These data suggest that soluble tannin from persimmons might attenuate the pathogenesis of pulmonary NTM infection.
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Affiliation(s)
- Yoko Matsumura
- Department of Immunology, Nara Medical University, Kashihara, Nara, Japan
- Department of Health and Nutrition, Faculty of Health Science, Kio University, Kitakatsuragi-gun, Nara, Japan
| | | | | | - Satsuki Yasui
- Department of Immunology, Nara Medical University, Kashihara, Nara, Japan
| | - Naoko Mochida
- Department of Health and Nutrition, Faculty of Health Science, Kio University, Kitakatsuragi-gun, Nara, Japan
| | - Ryuichi Nakano
- Department of Microbiology and Infectious Diseases, Nara Medical University, Kashihara, Nara, Japan
| | - Kei Kasahara
- Center for Infectious Diseases, Nara Medical University, Kashihara, Nara, Japan
| | - Koichi Tomoda
- Second Department of Internal Medicine, Nara Medical University, Kashihara, Nara, Japan
| | - Hisakazu Yano
- Department of Microbiology and Infectious Diseases, Nara Medical University, Kashihara, Nara, Japan
| | - Shin-ichi Kayano
- Department of Health and Nutrition, Faculty of Health Science, Kio University, Kitakatsuragi-gun, Nara, Japan
| | - Toshihiro Ito
- Department of Immunology, Nara Medical University, Kashihara, Nara, Japan
- * E-mail:
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Granica S, Kłębowska A, Kosiński M, Piwowarski JP, Dudek MK, Kaźmierski S, Kiss AK. Effects of Geum urbanum L. root extracts and its constituents on polymorphonuclear leucocytes functions. Significance in periodontal diseases. JOURNAL OF ETHNOPHARMACOLOGY 2016; 188:1-12. [PMID: 27139570 DOI: 10.1016/j.jep.2016.04.030] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Revised: 04/13/2016] [Accepted: 04/20/2016] [Indexed: 06/05/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Geum urbanum L. (wood avens) root infusions and decoctions have been used externally for reducing the bleeding and inflammation of gums (gingivitis), and mucous membranes. AIM OF THE STUDY Taking into account that primed and hyperactivated neutrophils are an important factor in the transition from gingivitis to periodontitis, we investigated the effects of phytochemically characterised (HPLC-DAD-MS(n)) extracts of different polarity from Geum urbanum root on oxidative burst, elastase, metalloproteinase 9 (MMP-9), interleukin 8 (IL-8) and 1β (IL-1β), tumour necrosis factor (TNF-α) release, expression of adhesion molecules (CD62L and CD11b) and delayed apoptosis in stimulated neutrophils. As gemin A is a dominating compound in a raw material, so we considered its activity in parallel with the positive control quercetin. MATERIALS AND METHODS The extracts were characterised by HPLC-DAD- MS(n) method. The inhibition of ROS production by stimulated neutrophils was determined using luminol dependent chemiluminescence method. The effect on MMP-9, IL-1β, TNF-α and IL-8 production by neutrophils was measured by enzyme-linked immunosorbent assay (ELISA). Neutrophil elastase release was established spectrophotometrically. The expression of adhesion molecules and the apoptosis of neutrophils was analyzed with flow cytometry. RESULTS The main compounds detected in the extract belong mainly to the group of ellagitannin: pedunculagin, stachyurin, casuarynin and gemin A, and ellagic acid derivatives. Procyanidins and one complex tannin were found as minor compounds. Gemin A significantly affected the functions of stimulated neutrophils by reducing the surface expression of CD11b, and inhibiting the release of reactive oxygen species, and proteases (elastase, MMP-9), chemokines and cytokines (interleukins IL-8, IL-1β). Interestingly, gemin A stimulated the release of TNF-α, which may be one of the stimulators of apoptosis of neutrophil cells. The primary aqueous extract, the ethyl acetate and the butanolic fractions, all containing the highest level of gemin A, have exerted similar but weaker activity. CONCLUSION The modulating effect on the neutrophils function of extracts, and its main constituent gemin A, support the traditional use of this plant material in cavity inflammation including mucositis, gingivitis and periodontosis.
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Affiliation(s)
- Sebastian Granica
- Department of Pharmacognosy and Molecular Basis of Phytotherapy, Medical University of Warsaw, Banacha 1, Warsaw 02-097, Poland
| | - Agnieszka Kłębowska
- Department of Pharmacognosy and Molecular Basis of Phytotherapy, Medical University of Warsaw, Banacha 1, Warsaw 02-097, Poland
| | - Michał Kosiński
- Department of Pharmacognosy and Molecular Basis of Phytotherapy, Medical University of Warsaw, Banacha 1, Warsaw 02-097, Poland
| | - Jakub P Piwowarski
- Department of Pharmacognosy and Molecular Basis of Phytotherapy, Medical University of Warsaw, Banacha 1, Warsaw 02-097, Poland
| | - Marta K Dudek
- Physical Chemistry Department, Medical University of Warsaw, Banacha 1, Warsaw 02-097, Poland; Centre of Molecular and Macromolecular Studies PAS, Sienkiewicza 112, Lodz 90-363, Poland
| | - Sławomir Kaźmierski
- Centre of Molecular and Macromolecular Studies PAS, Sienkiewicza 112, Lodz 90-363, Poland
| | - Anna K Kiss
- Department of Pharmacognosy and Molecular Basis of Phytotherapy, Medical University of Warsaw, Banacha 1, Warsaw 02-097, Poland.
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Serna DMO, Martínez JHI. Phenolics and Polyphenolics from Melastomataceae Species. Molecules 2015; 20:17818-47. [PMID: 26404220 PMCID: PMC6332314 DOI: 10.3390/molecules201017818] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2015] [Revised: 08/31/2015] [Accepted: 09/07/2015] [Indexed: 11/16/2022] Open
Abstract
The Melastomataceae family, the seventh largest flowering plants, has been studied in several fronts of natural product chemistry, including terpenoids, simple phenolics, flavonoids, quinones, lignans and their glycosides, as well as a vast range of tannins or polyphenols. This review concerns the phenolic and polyphenolic metabolites described in the literature for several genera of this family, the mode of isolation and purification, and the structure elucidation of these new natural products that has been achieved by extensive spectral analyses, including ESI-MS, ¹H-, (13)C-NMR spectra and two-dimensional experiments, COSY, TOCSY, J-resolved, NOESY, HMQC, DEPT, and HMBC, as well as chemical and enzymatic degradations and the chemotaxonomic meaning. Finally, a general biogenetic pathway map for ellagitannins is proposed on the bases of the most plausible free radical C-O oxidative coupling.
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Affiliation(s)
- Diana Marcela Ocampo Serna
- Grupo de Investigación en Productos Naturales y Alimentos (GIPNA), Departamento de Química, Facultad de Ciencias Naturales y Exactas, Universidad del Valle, Edificio 320, Oficina 2096, Ciudad Universitaria-Meléndez, Calle 13 No. 100-00, Cali 760032, Colombia.
- Departamento de Química, Facultad de Ciencias Exactas y Naturales, Universidad de Caldas, Calle 65 No. 26-10, Manizales 170004, Colombia.
| | - José Hipólito Isaza Martínez
- Grupo de Investigación en Productos Naturales y Alimentos (GIPNA), Departamento de Química, Facultad de Ciencias Naturales y Exactas, Universidad del Valle, Edificio 320, Oficina 2096, Ciudad Universitaria-Meléndez, Calle 13 No. 100-00, Cali 760032, Colombia.
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Liu JB, Ding YS, Zhang Y, Chen JB, Cui BS, Bai JY, Lin MB, Hou Q, Zhang PC, Li S. Anti-inflammatory Hydrolyzable Tannins from Myricaria bracteata. JOURNAL OF NATURAL PRODUCTS 2015; 78:1015-1025. [PMID: 25918997 DOI: 10.1021/np500953e] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Twelve hydrolyzable tannins were obtained from the twigs of Myricaria bracteata, including two new hellinoyl-type dimers, bracteatinins D1 (1) and D2 (2); a new hellinoyl-type trimer, bracteatinin T1 (3); two known monomers, nilotinin M4 (4) and 1,3-di-O-galloyl-4,6-O-(aS)-hexahydroxydiphenoyl-β-d-glucose (5); six known dimers, tamarixinin A (6), nilotinin D8 (7), hirtellins A (10), B (9), and E (8), and isohirtellin C (11); and a known trimer, hirtellin T3 (12). The structures of the tannins were elucidated by spectroscopic data analysis and comparisons to known tannins. All compounds were evaluated as free radical scavengers using 1,1-diphenyl-2-picrylhydrazyl and hydroxy radicals and compared to the activity of BHT and Trolox. Compound 6 showed a significant anti-inflammatory effect on croton oil-induced ear edema in mice (200 mg/kg, inhibition rate 69.8%) and on collagen-induced arthritis in DBA/1 mice (20 mg/kg, inhibition rate 46.0% at day 57).
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Affiliation(s)
- Jia-Bao Liu
- †State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Ya-Si Ding
- †State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Ying Zhang
- †State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Jia-Bao Chen
- †State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Bao-Song Cui
- †State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Jin-Ye Bai
- †State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Ming-Bao Lin
- †State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Qi Hou
- †State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Pei-Cheng Zhang
- †State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Shuai Li
- †State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
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Wang J, Zhang C, Wang T, Li X. Synthesis of resveratrol analogs/stilbene derivatives and their nitric oxide inhibitory and radical scavenging activities. Chem Res Chin Univ 2014. [DOI: 10.1007/s40242-014-4120-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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14
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Yang GX, Zhang RZ, Lou B, Cheng KJ, Xiong J, Hu JF. Chemical constituents from Melastoma dodecandrum and their inhibitory activity on interleukin-8 production in HT-29 cells. Nat Prod Res 2014; 28:1383-7. [PMID: 24697659 DOI: 10.1080/14786419.2014.903480] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
In search of anti-inflammatory lead compounds from traditional Chinese medicines, a bioassay-guided phytochemical study on Melastoma dodecandrum was carried out. As a result, 18 compounds have been isolated. Their chemical structures were determined on the basis of their physicochemical properties and spectral data. Among the isolates, three pentacyclic triterpenoids, ursolic acid (1), asiatic acid (3) and terminolic acid (6), together with one tannin casuarinin (17), were found to significantly decrease interleukin-8 (IL-8) production in human colon cancer cells. The results imply, at least in part, that the anti-inflammatory effect of M. dodecandrum could be due to inhibition of IL-8 production, demonstrated by these naturally occurring compounds described above.
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Affiliation(s)
- Guo-Xun Yang
- a Department of Natural Products Chemistry , School of Pharmacy, Fudan University , No. 826 Zhangheng Road, Shanghai 201203 , P.R. China
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Wang J, Wang T, Xie P, Yin G, Li X. New phenanthrene derivatives with nitric oxide inhibitory and radical-scavenging activities fromPholidota imbricataHook. Nat Prod Res 2013; 28:251-6. [DOI: 10.1080/14786419.2013.847437] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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16
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Kwon DJ, Bae YS, Ju SM, Goh AR, Youn GS, Choi SY, Park J. Casuarinin suppresses TARC/CCL17 and MDC/CCL22 production via blockade of NF-κB and STAT1 activation in HaCaT cells. Biochem Biophys Res Commun 2012; 417:1254-9. [DOI: 10.1016/j.bbrc.2011.12.119] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2011] [Accepted: 12/23/2011] [Indexed: 12/23/2022]
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17
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Tao JY, Dai SJ, Zhao F, Liu JF, Fang WS, Liu K. New ursane-type triterpene with NO production suppressing activity from Nauclea officinalis. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2012; 14:97-104. [PMID: 22296148 DOI: 10.1080/10286020.2011.628839] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Two new ursane-type triterpenes, named as 3β, 19α, 23, 24-tetrahydroxyurs-12-en-28-oic acid (1) and 2β, 3β, 19α, 24-tetrahydroxyurs-12-en-28-oic acid (2), together with two known triterpenoids, 3-oxo-urs-12-ene-27, 28-dioic acid (3) and quinovic acid-3-β-rhamnopyranoside (4), were isolated from the stems (with barks) of Nauclea officinalis. The structures of 1 and 2 were determined by the combined use of single-crystal X-ray diffraction and spectroscopic data analysis. The inhibitory activities on nitric oxide (NO) production induced by lipopolysaccharide in mouse macrophage RAW 264.7 cells were examined, and compound 1 was found to inhibit NO production, with the IC(50) value of 4.8 μM.
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Affiliation(s)
- Jia-Yi Tao
- Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Cho JY, Lee TH, Hwang TL, Yang SZ, Chen IS, Chou TH, Sung PJ, Chen JJ. A New Ferulic Acid Ester, a New Ellagic Acid Derivative, and Other Constituents from Pachycentria formosana: Effects on Neutrophil Pro-Inflammatory Responses. Chem Biodivers 2011; 8:1709-16. [DOI: 10.1002/cbdv.201000228] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Casuarinin suppresses TNF-α-induced ICAM-1 expression via blockade of NF-κB activation in HaCaT cells. Biochem Biophys Res Commun 2011; 409:780-5. [PMID: 21621513 DOI: 10.1016/j.bbrc.2011.05.088] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2011] [Accepted: 05/14/2011] [Indexed: 12/30/2022]
Abstract
Hippophae rhamnoides has been extensively used in oriental traditional medicines for treatment of asthma, skin diseases, gastric ulcers, and lung disorders. In this study, we isolated casuarinin from the leaves of H.rhamnoides and examined the effect of casuarinin on the TNF-α-induced ICAM-1 expression in a human keratinocytes cell line HaCaT. Pretreatment with casuarinin inhibited TNF-α-induced protein and mRNA expression of ICAM-1 and subsequent monocyte adhesiveness in HaCaT cells. Casuarinin significantly inhibited TNF-α-induced NF-κB activation. In addition, casuarinin inhibited activation of ERK and p38 MAPK in a dose-dependent manner. Furthermore, pretreatment with casuarinin decreased TNF-α-induced pro-inflammatory mediators, such as IL-1β, IL-6, IL-8, and MCP-1. These results demonstrated that casuarinin exerts its anti-inflammatory activity by suppressing TNF-α-induced expression of ICAM-1 and pro-inflammatory cytokines/chemokines via blockage of activation of NF-κB and ERK/p38 MAPK and can be used as a therapeutic agent against inflammatory skin diseases.
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Suppression of inducible nitric oxide synthase expression and amelioration of lipopolysaccharide-induced liver injury by polyphenolic compounds in Eucalyptus globulus leaf extract. Food Chem 2011. [DOI: 10.1016/j.foodchem.2010.09.026] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Larrosa M, García-Conesa MT, Espín JC, Tomás-Barberán FA. Ellagitannins, ellagic acid and vascular health. Mol Aspects Med 2010; 31:513-39. [PMID: 20837052 DOI: 10.1016/j.mam.2010.09.005] [Citation(s) in RCA: 253] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2010] [Revised: 09/06/2010] [Accepted: 09/06/2010] [Indexed: 01/08/2023]
Abstract
Hydrolysable tannins are phenolic phytochemicals that show high antioxidant and free-radical scavenging activities. For this reason their potential effects preventing oxidative related diseases, such as cardiovascular diseases, have been largely studied. In vitro studies show that ellagitannins, at concentrations in the range 10-100 μM, show some relevant anti-atherogenic, anti-thrombotic, anti-inflammatory and anti-angiogenic effects, supporting the molecular mechanisms for the vascular health benefits. While there is good evidence supporting the vascular effects in vitro, the evidence on animal models or humans is much scarcer. The in vitro results often do not match the findings in the in vivo studies. This could be explained by the low bioavailability of the antioxidant ellagitannins and ellagic acid. The main ellagitannin metabolites circulating in plasma are ellagic acid microbiota metabolites known as urolithins, and they have lost their free-radical scavenging activity. They are present in plasma as glucuronide or sulphate conjugates, at concentrations in the nM range. Future studies should focus in the bioavailable metabolites, urolithins, and in the form (conjugated with glucuronic acid or sulphate) and concentrations (nM range) in which they are found in plasma. In this review we critically discuss the role of ellagitannins and ellagic acid on vascular health.
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Affiliation(s)
- Mar Larrosa
- Research Group on Quality, Safety and Bioactivity of Plant Foods, CEBAS-CSIC, P.O. Box 164, Murcia 30100, Spain
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Kolodziej H, Radtke OA, Kiderlen AF. Stimulus (polyphenol, IFN-gamma, LPS)-dependent nitric oxide production and antileishmanial effects in RAW 264.7 macrophages. PHYTOCHEMISTRY 2008; 69:3103-3110. [PMID: 18164321 DOI: 10.1016/j.phytochem.2007.11.012] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2007] [Revised: 07/25/2007] [Accepted: 11/14/2007] [Indexed: 05/25/2023]
Abstract
The effects of interferon (IFN-gamma), lipopolysaccharide (LPS), and some polyphenols as individual stimuli, as well as in various combinations on NO production in non-infected and infected macrophage-like RAW 264.7 cells were investigated, with emphasis on the NO/parasite kill relationship. In non-infected and in Leishmania parasitized cells, gallic acid significantly inhibited the IFN-gamma and LPS-induced NO detected in the supernatant. This effect was less prominent in IFN-gamma- than in LPS-stimulated cells. Interestingly, and in contrast to non-infected cells, gallic acid inhibited NO production only when added within 3h after IFN-gamma+LPS. Addition of gallic acid following prolonged incubation with IFN-gamma+LPS periods (24 h) no longer inhibited, sometimes even enhanced NO release. Notably, an excellent NO/parasite kill relationship was evident from all the experiments. This study was extended to a series of polyphenols (3-O-shikimic acid, its 3,5-digalloylated analogue, catechin, EGCG, and a procyanidin hexamer) with proven immunostimulatory activities. Although these compounds themselves were found to be weak NO-inducers, the viability of intracellular Leishmania parasites was considerably reduced. Furthermore, their dose-dependent effects on macrophage NO release was determined in the presence of IFN-gamma and/or LPS. Again, non-infected and infected cells differed significantly in the NO response, while inhibition of IFN-gamma and/or LPS-induced NO production by the tested polyphenols strongly depended on the given time of exposure and the sequence of immunological stimuli. A strong inverse correlation between NO levels and intracellular survival rates of Leishmania parasites supported the assumption that the observed inhibition of NO was not simply due to interference with the Griess assay used for detection.
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Affiliation(s)
- Herbert Kolodziej
- Freie Universität Berlin, Institute of Pharmacy, Pharmaceutical Biology, Königin-Luise-Str. 2+4, D-14195 Berlin, Germany.
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Mythilypriya R, Shanthi P, Sachdanandam P. Synergistic Effect of Kalpaamruthaa on Antiarthritic and Antiinflammatory Properties—Its Mechanism of Action. Inflammation 2008; 31:391-8. [DOI: 10.1007/s10753-008-9090-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Wang XM, Wan CP, Zhou SR, Qiu Y. Two new flavonol glycosides from Sarcopyramis bodinieri var. delicate. Molecules 2008; 13:1399-405. [PMID: 18596665 PMCID: PMC6245408 DOI: 10.3390/molecules13061399] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2008] [Revised: 06/17/2008] [Accepted: 06/17/2008] [Indexed: 02/07/2023] Open
Abstract
Detailed chemical investigation of the herb Sarcopyramis bodinieri var. delicate resulted in the isolation of two new flavonol glycosides, namely, isorhamnetin-3-O-(6''-OE-feruloyl)-beta-D-glucopyranoside (1) and isorhamnetin-3-O-(6''-O-E-feruloyl)-beta-Dgalactopyranoside (2). In addition, four known compounds, quercetin-3-O-(6''-acetyl)-beta-Dglucopyranoside (3), isorhamnetin-3-O-(6''-acetyl)-beta-D-glucopyranoside (4), quercetin-3-O-(6''-O-E-p-coumaroyl)-beta-D-glucopyranoside (5), and isorhamnetin-3-O-(6''-O-E-pcoumaroyl)-beta-D-glucopyranoside (6) were obtained. The structures of the new isolates were determined by extensive spectroscopic analysis.
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Affiliation(s)
- Xiu Min Wang
- Department of Pharmacy, School of Medical, Xiamen University, Xiamen 361005, People′s Republic of China; E-mail:
| | - Chun Peng Wan
- Department of Pharmacy, School of Medical, Xiamen University, Xiamen 361005, People′s Republic of China; E-mail:
- Jiangxi University of Traditional Chinese Medicine, Nanchang 330006, People′s Republic of China; E-mails: (Wan); (Zhou)
| | - Shou Ran Zhou
- Jiangxi University of Traditional Chinese Medicine, Nanchang 330006, People′s Republic of China; E-mails: (Wan); (Zhou)
| | - Yan Qiu
- Department of Pharmacy, School of Medical, Xiamen University, Xiamen 361005, People′s Republic of China; E-mail:
- Author to whom correspondence should be addressed. E-mail: ; Tel: (+86) 592-2188681; Fax: (+86) 592-2188676
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Stilbene and dihydrophenanthrene derivatives from Pholidota chinensis and their nitric oxide inhibitory and radical-scavenging activities. J Nat Med 2007. [DOI: 10.1007/s11418-007-0162-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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26
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Mythilypriya R, Shanthi P, Sachdanandam P. Restorative and synergistic efficacy of Kalpaamruthaa, a modified Siddha preparation, on an altered antioxidant status in adjuvant induced arthritic rat model. Chem Biol Interact 2007; 168:193-202. [PMID: 17588554 DOI: 10.1016/j.cbi.2007.04.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2006] [Revised: 04/06/2007] [Accepted: 04/13/2007] [Indexed: 10/23/2022]
Abstract
BACKGROUND Rheumatoid arthritis (RA) is a prevalent and debilitating disease that affects the joints. Infiltration of blood-derived cells in the affected joints upon activation generate reactive oxygen/nitrogen species, resulting in an oxidative stress. One approach to counteract this oxidative stress is the use of antioxidants as therapeutic agents. OBJECTIVES Kalpaamruthaa (KA), a modified indigenous Siddha preparation constituting Semecarpus anacardium nut milk extract (SA), Emblica officinalis (EO) and honey was evaluated for its synergistic antioxidant potential in adjuvant induced arthritic rats than sole SA treatment. MATERIALS AND METHODS Levels/activities of reactive oxygen species (ROS)/reactive nitrogen species (RNS), myeloperoxidase, lipid peroxide and enzymic and non-enzymic antioxidants were determined in control, arthritis induced, SA and KA treated (150 mg/kg b.wt.) animals. RESULTS AND CONCLUSION The levels/activities of ROS/RNS, myeloperoxidase and lipid peroxide were increased significantly (p<0.05) and the activities of enzymic and non-enzymic antioxidants were in turn decreased in arthritic rats, whereas these changes were reverted to near normal levels upon SA and KA treatment. KA showed an enhanced antioxidant potential than sole treatment of SA in adjuvant induced arthritic rats. KA via enhancing the antioxidant status in adjuvant induced arthritic rats than sole SA treatment proves to be an important therapeutic modality in the management of RA and thereby instituting the role of oxidative stress in the clinical manifestation of the disease RA. The profound antioxidant efficacy of KA than SA alone might be due to the synergistic action of the polyphenols such as flavonoids, tannins and other compounds such as vitamin C and hydroxycinnamates present in KA.
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Affiliation(s)
- Rajendran Mythilypriya
- Department of Medical Biochemistry, Dr. A.L.M. Post Graduate Institute of Basic Medical Sciences, University of Madras, Taramani Campus, Chennai 600113, India
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Zhang X, Xu JK, Wang J, Wang NL, Kurihara H, Kitanaka S, Yao XS. Bioactive bibenzyl derivatives and fluorenones from Dendrobium nobile. JOURNAL OF NATURAL PRODUCTS 2007; 70:24-8. [PMID: 17253844 DOI: 10.1021/np060449r] [Citation(s) in RCA: 124] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Bioassay-guided fractionation of the 60% ethanol extract of the stems of Dendrobium nobile using the DPPH assay led to the isolation of two new bibenzyl derivatives, nobilin D (1) and nobilin E (2), and a new fluorenone, nobilone (3), together with seven known compounds (4-10). Their structures were determined on the basis of spectroscopic analyses. Compounds 1, 2, 4, 7, 8, and 10 exhibited significant antioxidant activity higher than or equivalent to vitamin C in the DPPH assay, and compounds 1, 3, 4, and 7-10 displayed higher antioxidant activity than vitamin C in the ORAC assay. Compounds 1, 2, and 10 also exhibited stronger inhibitory effects on NO production than resveratrol.
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Affiliation(s)
- Xue Zhang
- Research Institute of Tsinghua University in Shenzhen, Key Laboratory for New Drugs Research of Traditional Chinese Medicine in Shenzhen, Shenzhen 518057, People's Republic of China
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Yang ZG, Li HR, Wang LY, Li YH, Lu SG, Wen XF, Wang J, Daikonya A, Kitanaka S. Triterpenoids from Hippophae rhamnoides L. and Their Nitric Oxide Production-Inhibitory and DPPH Radical-Scavenging Activities. Chem Pharm Bull (Tokyo) 2007; 55:15-8. [PMID: 17202693 DOI: 10.1248/cpb.55.15] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
In our investigation on the chemical constituents of Hippophae rhamnoides L., the chloroform-soluble fraction of the 80% acetone extract of branch bark was observed to inhibit nitric oxide (NO) production in a lipopolysaccharide and recombinant mouse interferon-gamma-activated murine macrophage-like cell line, RAW 264.7 cells. Two new triterpenoids, 2-O-trans-p-coumaroyl maslinic acid (1) and 2-O-caffeoyl maslinic acid (2), and three known triterpenoids, oleanolic acid (3), 3-O-trans-p-coumaroyl oleanolic acid (4), and 3-O-caffeoyl oleanolic acid (5), and 6-methoxy-2H-1-benzopyran (6) and beta-sitosterol (7) were isolated from the branch bark extract. Their inhibitory activities on the production of NO in RAW 264.7 cells and radical-scavenging activities were examined.
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Affiliation(s)
- Zhi-Gang Yang
- China National Administration Center for Seabuckthorn Development, Ministry of Water Resources, Haidian District, Beijing 100038, P. R. China
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Guo XY, Wang J, Wang NL, Kitanaka S, Liu HW, Yao XS. New Stilbenoids from Pholidota yunnanensis and Their Inhibitory Effects on Nitric Oxide Production. Chem Pharm Bull (Tokyo) 2006; 54:21-5. [PMID: 16394543 DOI: 10.1248/cpb.54.21] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Six new stilbenoids, a (bibenzyldihydrophenanthrene) ether designated phoyunnanin D (1), a bis(dihydrophenanthrene) ether designated phoyunnanin E (2), and four stilbenes designated phoyunbene A-D (3-6), were isolated from the air-dried whole plant of Pholidota yunnanensis ROLFE. The new compounds were identified as 7-[2-(3-hydroxyphenethyl)-4-hydroxy-6-methoxyphenoxy]-4-hydroxy-2-methoxy-9,10-dihydrophenanthrene (1), 1-[(9,10-dihydro-4-hydroxy-2-methoxy-7-phenanthrenyl)oxy]-4,7-dihydroxy-2-methoxy-9,10-dihydrophenanthrene (2), trans-3,3'-dihydroxy-2',4',5-trimethoxystilbene (3), trans-3,4'-dihydroxy-2',3',5-trimethoxystilbene (4), trans-3,3'-dihydroxy-2',5-dimethoxystilbene (5), and trans-3-hydroxy-2',3',5-trimethoxystilbene (6) based on spectroscopic evidence. Furthermore, the inhibitory effects of compounds 1-6 on nitric oxide production in a murine macrophage-like cell line (RAW 264.7) activated by lipopolysaccharide and interferon-gamma were examined.
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Affiliation(s)
- Xiao-Yu Guo
- College of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, ShenheDistrict Shenyang, China
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Motai T, Kitanaka S. Sesquiterpene chromones from Ferula fukanensis and their nitric oxide production inhibitory effects. JOURNAL OF NATURAL PRODUCTS 2005; 68:1732-5. [PMID: 16378364 DOI: 10.1021/np058079e] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Five new sesquiterpene chromone derivatives, fukanefurochromones A-E (1-5), were isolated from a 80% aqueous methanol extract of the roots of Ferula fukanensis. The structures were elucidated on the basis of spectroscopic evidence, especially heteronuclear multiple-bond connectivity (HMBC) and high-resolution MS. The sesquiterpene chromone derivatives inhibited nitric oxide (NO) production and inducible NO synthase (iNOS) gene expression by a murine macrophage-like cell line (RAW 264.7), which was activated by lipopolysaccharide (LPS) and recombinant mouse interferon-gamma (IFN-gamma).
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Affiliation(s)
- Tsunetake Motai
- College of Pharmacy, Nihon University, 7-7-1 Narashinodai, Funabashi, Chiba 274-8555, Japan
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31
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Sesquiterpenoids from Ferula fukanensis and their inhibitory effects on nitric oxide production. J Nat Med 2005. [DOI: 10.1007/s11418-005-0006-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Inhibitory activity of Chinese herbal medicines toward histamine release from mast cells and nitric oxide production by macrophage-like cell line, RAW 264.7. J Nat Med 2005. [DOI: 10.1007/s11418-005-0010-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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33
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Kolodziej H, Burmeister A, Trun W, Radtke OA, Kiderlen AF, Ito H, Hatano T, Yoshida T, Foo LY. Tannins and related compounds induce nitric oxide synthase and cytokines gene expressions in Leishmania major-infected macrophage-like RAW 264.7 cells. Bioorg Med Chem 2005; 13:6470-6. [PMID: 16143535 DOI: 10.1016/j.bmc.2005.07.012] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2005] [Revised: 06/20/2005] [Accepted: 07/01/2005] [Indexed: 11/15/2022]
Abstract
Some polyphenol-containing extracts (Pelargonium sidoides, Phyllanthus amarus) and representatives of simple phenols (shikimic acid 3- and 5-O-gallate), flavan-3-ols (epigallocatechin 3-gallate), proanthocyanidins (a hexamer) and hydrolysable tannins (corilagin, casuariin, geraniin) were studied for gene expressions (iNOS, IL-1, IL-10, IL-12, IL-18, TNF-alpha, IFN-alpha/gamma) by RT-PCR. All extracts and compounds were capable of enhancing the iNOS and cytokine mRNA levels in parasitised cells when compared with those in non-infected conditions.
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Affiliation(s)
- Herbert Kolodziej
- Institute of Pharmacy, Pharmaceutical Biology, Freie Universität Berlin, Germany.
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34
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Kolodziej H, Kiderlen AF. Antileishmanial activity and immune modulatory effects of tannins and related compounds on Leishmania parasitised RAW 264.7 cells. PHYTOCHEMISTRY 2005; 66:2056-71. [PMID: 16153409 DOI: 10.1016/j.phytochem.2005.01.011] [Citation(s) in RCA: 92] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2004] [Revised: 12/14/2004] [Indexed: 05/04/2023]
Abstract
The antileishmanial and immunomodulatory potencies of a total of 67 tannins and structurally related compounds were evaluated in terms of extra- and intra-cellular leishmanicidal effects and macrophage activation for release of nitric oxide (NO), tumour necrosis factor (TNF) and interferon (IFN)-like activities. Their effects on macrophage functions were further assessed by expression analysis (iNOS, IFN-alpha, IFN-gamma, TNF-alpha, IL-1, IL-10, IL-12, IL-18). With few exceptions, e.g., caffeic acid derivatives, these polyphenols revealed little direct toxicity for extracellular promastigote Leishmania donovani or L. major strains. In contrast, many polyphenols appreciably reduced the survival of the intracellular, amastigote parasite form in vitro. Upon activation, e.g., by immune response mediators such as IFN-gamma, macrophages may transform from permissive host to leishmanicidal effector cells. Our data from functional bioassays suggested that the effects of polyphenols on intracellular Leishmania parasites were due to macrophage activation rather than direct antiparasitic activity. Gene expression analyses not only confirmed functional data, they also clearly showed differences in the response of infected macrophages when compared to that of noninfected cells. Conspicuously, infected macrophages showed augmented and prolonged activation of host defense mechanisms, indicating that parasitised macrophages were exquisitely predisposed or "primed" to react to activating molecules such as polyphenols. This promotive effect may be of special benefit, e.g., stimulation of the non-specific immune system selectively at the site of infection and when needed. Although these data provide the basis for an immunological concept of plant polyphenols for their beneficial effects in various infectious conditions, in vivo experiments are essential to prove the therapeutic benefits of polyphenolic immunomodulators.
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Affiliation(s)
- Herbert Kolodziej
- Freie Universität Berlin, Institute of Pharmacy, Pharmaceutical Biology, Königin-Luise-Str. 2+4, D-14195 Berlin, Germany.
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35
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Kuo PL, Hsu YL, Lin TC, Chang JK, Lin CC. Induction of cell cycle arrest and apoptosis in human non-small cell lung cancer A549 cells by casuarinin from the bark of Terminalia arjuna Linn. Anticancer Drugs 2005; 16:409-15. [PMID: 15746577 DOI: 10.1097/00001813-200504000-00007] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Casuarinin, a hydrolyzable tannin isolated from the bark of Terminalia arjuna Linn. (Combretaceae), inhibits human non-small cell lung cancer A549 cells by blocking cell cycle progression in the G0/G1 phase and inducing apoptosis. Enzyme-linked immunosorbent assay showed that the G0/G1 phase arrest is due to p53-dependent induction of p21/WAF1. An enhancement in Fas/APO-1 and the two forms of Fas ligand (FasL), membrane-bound FasL and soluble FasL, might be responsible for the apoptotic effect induced by casuarinin. Our study reports here for the first time that the induction of p53 and the activity of the Fas/FasL apoptotic system may participate in the antiproliferative activity of casuarinin in A549 cells.
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Affiliation(s)
- Po-Lin Kuo
- Department of Biotechnology, Chia-Nan University of Pharmacy and Science, Tainan, Taiwan
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36
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Motai T, Kitanaka S. Sesquiterpene phenylpropanoids from Ferula fukanensis and their nitric oxide production inhibitory effects. JOURNAL OF NATURAL PRODUCTS 2005; 68:365-368. [PMID: 15787437 DOI: 10.1021/np040215c] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Five new sesquiterpene phenylpropanoid derivatives, fukanedone A (1), fukanedone B (2), fukanedone C (3), fukanedone D (4), and fukanedone E (5), and a novel phenyl-oxo-acetate ester, fukaneketoester A (6), were isolated from a 80% aqueous methanol extract of the roots of Ferula fukanensis. The structures were elucidated on the basis of spectroscorpic evidence, especially heteronuclear multiple-bond connectivity (HMBC) and high-resolution MS. The sesquiterpene phenylpropanoid derivatives inhibited nitric oxide (NO) production and inducible NO synthase (iNOS) gene expression by a murine macrophage-like cell line (RAW 264.7), which was activated by lipopolysaccharide (LPS) and recombinant mouse interferon-gamma (IFN-gamma).
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Affiliation(s)
- Tsunetake Motai
- College of Pharmacy, Nihon University, 7-7-1 Narashinodai, Funabashi, Chiba 274-8555, Japan
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37
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Motai T, Kitanaka S. Sesquiterpene coumarins from Ferula fukanensis and nitric oxide production inhibitory effects. Chem Pharm Bull (Tokyo) 2005; 52:1215-8. [PMID: 15467238 DOI: 10.1248/cpb.52.1215] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Four new sesquiterpene coumarin derivatives, fukanemarin B (1), fukanefuromarin E (2), fukanefuromarin F (3) and fukanefuromarin G (5) were isolated from a 80% aqueous methanol extract of the roots of Ferula fukanensis. The structures were elucidated based on spectral evidence, especially heteronuclear multiple-bond connectivity (HMBC) and high-resolution MS. The 80% aqueous methanol extract of the roots of Ferula fukanensis (FFE) and the sesquiterpene coumarin derivatives inhibited nitric oxide (NO) production and inducible NO synthase (iNOS) gene expression by a murine macrophage-like cell line (RAW 264.7), which was activated by lipopolysaccharide (LPS) and recombinant mouse interferon-gamma (IFN-gamma).
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38
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Kim HJ, Yeom SH, Kim MK, Shim JG, Paek IN, Lee MW. Nitric oxide and prostaglandin E2 synthesis inhibitory activities of diarylheptanoids from the barks ofAlnus japonica steudel. Arch Pharm Res 2005; 28:177-9. [PMID: 15789747 DOI: 10.1007/bf02977711] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Nine known diarylheptanoids (1-9) isolated from the barks of Alnus japonica were evaluated for their inhibitory activities on nitric oxide (NO) and prostagrandin E2 (COX-2) production in interferon-gamma (INF-gamma) and lipopolysaccharide (LPS)-activated RAW 264.7 cells in vitro. The NO and COX-2 levels were moderately reduced by the addition of compounds (1-9). Among these compounds, compounds 6 and 8 inhibited NO production in a dose dependent manner with an IC50 of 16.7 and 27.2 microg/mL, respectively (positive control, L-NMMA; 22.8 microg/mL), and compounds 6, 7, 8, and 9 reduced the COX-2 level in a dose dependent manner with an IC50 of 20.7, 25.7, 25.0, and 27.3 microg/mL, respectively (positive control, indomethacin; 26.2 microg/mL). An analysis of the structural activity relationship among these diarylheptanoids suggests that the presence of a keto-enol group in the heptane moiety or a caffeoyl group in the aromatic ring were important for the efficacy on the inhibitory activities of NO and COX-2 production.
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Affiliation(s)
- Hyun-Jung Kim
- College of Pharmacy, Chung Ang University, Seoul 156-756, Korea
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39
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Zhao F, Watanabe Y, Nozawa H, Daikonnya A, Kondo K, Kitanaka S. Prenylflavonoids and phloroglucinol derivatives from hops (Humulus lupulus). JOURNAL OF NATURAL PRODUCTS 2005; 68:43-9. [PMID: 15679315 DOI: 10.1021/np0499113] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The ethyl acetate soluble fraction of hops (Humulus lupulus) showed potent inhibitory activity on the production of nitric oxide (NO) induced by a combination of LPS and IFN-gamma. Four known prenylflavonoids (1-4) and a new prenylflavonoid (5), hulupinic acid (6), lupulone (7), and its six new derivatives (8-13) were isolated from the active fraction. The structures were determined on the basis of physiochemical properties and spectroscopic analysis. Their inhibitory activities on the production of NO in macrophage RAW 264.7 cells were examined.
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Affiliation(s)
- Feng Zhao
- Central Laboratories for Key Technology, Kirin Brewery Co., Ltd., Yokohama-shi, Kanagawa 236-0004, Japan
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40
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Motai T, Daikonya A, Kitanaka S. Sesquiterpene coumarins from Ferula fukanensis and nitric oxide production inhibitory effects. JOURNAL OF NATURAL PRODUCTS 2004; 67:432-436. [PMID: 15043424 DOI: 10.1021/np030408k] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Six new sesquiterpene coumarin derivatives, 2,3-dihydro-7-hydroxy-2R,3R-dimethyl-2-[4,8-dimethyl-3(E),7-nonadien-6-onyl]furo[3,2-c]coumarin (4), fukanefuromarin A (5), fukanefuromarin B (6), fukanefuromarin C (7), fukanefuromarin D (8), and fukanemarin A (9), were isolated from a 80% aqueous methanol extract of the roots of Ferula fukanensis. The structures were elucidated on the basis of spectral evidence, especially heteronuclear multiple-bond connectivity (HMBC), nuclear Overhauser exchange spectroscopy (NOESY), and high-resolution MS. An extract of F. fukanensis (FFE) and the sesquiterpene coumarin derivatives inhibited nitric oxide (NO) production and inducible NO synthase (iNOS) gene expression by a murine macrophage-like cell line (RAW 264.7), which was activated by lipopolysaccharide (LPS) and recombinant mouse interferon-gamma (IFN-gamma).
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Affiliation(s)
- Tsunetake Motai
- College of Pharmacy, Nihon University, 7-7-1 Narashinodai, Funabashi, Chiba 274-8555, Japan
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41
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Daikonya A, Katsuki S, Kitanaka S. Antiallergic Agents from Natural Sources 9. Inhibition of Nitric Oxide Production by Novel Chalcone Derivatives from Mallotus philippinensis (Euphorbiaceae). Chem Pharm Bull (Tokyo) 2004; 52:1326-9. [PMID: 15516755 DOI: 10.1248/cpb.52.1326] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Three novel chalcone derivatives, mallotophilippens C (1), D (2) and E (3) were isolated from the fruits of Mallotus philippinensis MUELL. ARG. These compounds were identified, using chemical and spectral data, as 1-[6-(3,7-dimethyl-octa-2,6-dienyl)-5,7-dihydroxy-2,2-dimethyl-2H-chromen-8-yl]-3-(4-hydroxy-phenyl)-propenone, 3-(3,4-dihydroxy-phenyl)-1-[6-(3,7-dimethyl-octa-2,6-dienyl)-5,7-dihydroxy-2,2-dimethyl-2H-chromen-8-yl]-propenone and 1-[5,7-dihydroxy-2-methyl-6-(3-methyl-but-2-enyl)-2-(4-methyl-pent-3-enyl)-2H-chromen-8-yl]-3-(3,4-dihydroxy-phenyl)-propenone, respectively. They inhibited nitric oxide (NO) production and inducible NO synthase (iNOS) gene expression by a murine macrophage-like cell line (RAW 264.7), which was activated by lipopolysaccharide (LPS) and recombinant mouse interferon-gamma (IFN-gamma). Furthermore, they downregulated cyclooxygenase-2 (COX-2) gene, interleukin-6 (IL-6) gene and interleukin-1beta (IL-1beta) gene expression. These results suggest that they have anti-inflammatory and immunoregulatory effects.
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Affiliation(s)
- Akihiro Daikonya
- College of Pharmacy, Nihon University, 7-7-1 Narashinodai, Funabashi, Chiba 274-8555, Japan
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42
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Achike FI, Kwan CY. Nitric oxide, human diseases and the herbal products that affect the nitric oxide signalling pathway. Clin Exp Pharmacol Physiol 2003; 30:605-15. [PMID: 12940876 DOI: 10.1046/j.1440-1681.2003.03885.x] [Citation(s) in RCA: 91] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
1. Nitric oxide (NO) is formed enzymatically from l-arginine in the presence of nitric oxide synthase (NOS). Nitric oxide is generated constitutively in endothelial cells via sheer stress and blood-borne substances. Nitric oxide is also generated constitutively in neuronal cells and serves as a neurotransmitter and neuromodulator in non-adrenergic, non-cholinergic nerve endings. Furthermore, NO can also be formed via enzyme induction in many tissues in the presence of cytokines. 2. The ubiquitous presence of NO in the living body suggests that NO plays an important role in the maintenance of health. Being a free radical with vasodilatory properties, NO exerts dual effects on tissues and cells in various biological systems. At low concentrations, NO can dilate the blood vessels and improve the circulation, but at high concentrations it can cause circulatory shock and induce cell death. Thus, diseases can arise in the presence of the extreme ends of the physiological concentrations of NO. 3. The NO signalling pathway has, in recent years, become a target for new drug development. The high level of flavonoids, catechins, tannins and other polyphenolic compounds present in vegetables, fruits, soy, tea and even red wine (from grapes) is believed to contribute to their beneficial health effects. Some of these compounds induce NO formation from the endothelial cells to improve circulation and some suppress the induction of inducible NOS in inflammation and infection. 4. Many botanical medicinal herbs and drugs derived from these herbs have been shown to have effects on the NO signalling pathway. For example, the saponins from ginseng, ginsenosides, have been shown to relax blood vessels (probably contributing to the antifatigue and blood pressure-lowering effects of ginseng) and corpus cavernosum (thus, for the treatment of men suffering from erectile dysfunction; however, the legendary aphrodisiac effect of ginseng may be an overstatement). Many plant extracts or purified drugs derived from Chinese medicinal herbs with proposed actions on NO pathways are also reviewed.
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Affiliation(s)
- Francis I Achike
- Clinical Sciences Section, International Medical University, Bukit Jalil, Kuala Lumpur, Malaysia
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43
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Abstract
An investigation on Bidens parviflora led to the isolation of three sucrose esters and a substituted truxillate. Their structures were elucidated as (6-O-(E)-p-coumaroyl)-beta-D-fructofuranosyl-(2-->1)-alpha-D-glucopyranoside, (6-O-(E)-p-coumaroyl)-beta-D-fructofuranosyl-(2-->1)-(6-O-(E)-p-coumaroyl)-alpha-D-glucopyranoside II, 6,6'-sucrose ester of (1alpha,2alpha,3beta,4beta)-3,4-bis(4-hydroxyphenyl)-1,2-cyclobutanedicarboxylic acid, dimethyl ester of (1alpha,2alpha,3alpha,4alpha)-2,4-bis(3,4-dihydroxyphenyl)-1,3-cyclobutanedicarboxylic acid on the basis of spectral and chemical evidence. These compounds were subjected to the following bioassays: the histamine release inhibition of rat mast cells induced by antigen-antibody reaction and the inhibitory activity of PGE(2) production by macrophages.
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Affiliation(s)
- Naili Wang
- Department of Natural Products Chemistry, Shenyang Pharmaceutical University, 103, Wenhua Road Shenhe District Shenyang, Shenyang 110015, China.
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44
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Daikonya A, Katsuki S, Wu JB, Kitanaka S. Anti-allergic agents from natural sources (4): anti-allergic activity of new phloroglucinol derivatives from Mallotus philippensis (Euphorbiaceae). Chem Pharm Bull (Tokyo) 2002; 50:1566-9. [PMID: 12499591 DOI: 10.1248/cpb.50.1566] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Two new phloroglucinol derivatives, mallotophilippen A (1). and B (2). were isolated from the fruits of Mallotus philippensis. These compounds were identified, using chemical and spectral data, as 1-[5,7-dihydroxy-2,2-dimethyl-6-(2,4,6-trihydroxy-3-isobutyryl-5-methyl-benzyl)-2H-chromen-8-yl]-2-methyl-butan-1-one and 1-[6-(3-Acetyl-2,4,6-trihydroxy-5-methyl-benzyl)-5,7-dihydroxy-2,2-dimethyl-2H-chromen-8-yl]-2-methyl-butan-1-one, respectively. They inhibited nitric oxide (NO) production and inducible NO synthase (iNOS) gene expression by a murine macrophage-like cell line (RAW 264.7), which was activated by lipopolysaccharide (LPS) and recombinant mouse interferon-gamma (IFN-gamma). Furthermore, they inhibited histamine release from rat peritoneal mast cells induced by Compound 48/80. These results suggest that the novel phloroglucinol derivatives have anti-inflammatory effects.
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45
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Cheng HY, Lin CC, Lin TC. Antiherpes simplex virus type 2 activity of casuarinin from the bark of Terminalia arjuna Linn. Antiviral Res 2002; 55:447-55. [PMID: 12206882 DOI: 10.1016/s0166-3542(02)00077-3] [Citation(s) in RCA: 112] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Casuarinin, a hydrolyzable tannin isolated from the bark of Terminalia arjuna Linn. (Combretaceae), was investigated for its antiviral activity on herpes simplex type 2 (HSV-2) in vitro. Results showed that the IC(50) of casuarinin in XTT and plaque reduction assays were 3.6+/-0.9 and 1.5+/-0.2 microM, respectively. The 50% cytotoxic concentration for cell growth (CC(50)) was 89+/-1 microM. Thus, the selectivity index (SI) (ratio of CC(50) to IC(50)) of casuarinin was 25 and 59 for XTT and plaque reduction assays, respectively. Casuarinin continued to exhibit antiviral activity even added 12 h after infection. During the attachment assay, casuarinin was shown to prevent the attachment of HSV-2 to cells. Furthermore, casuarinin also exhibited an activity in inhibiting the viral penetration. Interestingly, casuarinin was virucidal at a concentration of 25 microM, reducing viral titers up to 100,000-fold. This study concludes that casuarinin possesses anti-herpesvirus activity in inhibiting viral attachment and penetration, and also disturbing the late event(s) of infection.
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Affiliation(s)
- Hua-Yew Cheng
- Graduate Institute of Pharmaceutical Science, College of Pharmacy, Kaohsiung Medical University, 100 Shih Chuan 1st Road, Taiwan, ROC
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46
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Ishii R, Horie M, Saito K, Arisawa M, Kitanaka S. Inhibitory effects of phloroglucinol derivatives from Mallotus japonicus on nitric oxide production by a murine macrophage-like cell line, RAW 264.7, activated by lipopolysaccharide and interferon-gamma. BIOCHIMICA ET BIOPHYSICA ACTA 2001; 1568:74-82. [PMID: 11731088 DOI: 10.1016/s0304-4165(01)00203-3] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
An aqueous acetone extract of the pericarps of Mallotus japonicus (MJE) inhibited nitric oxide (NO) production by a murine macrophage-like cell line, RAW 264.7, which was activated by lipopolysaccharide (LPS) and interferon-gamma (IFN-gamma). Seven phloroglucinol derivatives isolated from MJE exhibited inhibitory activity against NO production. Among these phloroglucinol derivatives, isomallotochromanol exhibited strong inhibitory activity toward NO production, exhibiting an IC(50) of 10.7 microM. MJE and the phloroglucinol derivatives significantly reduced both the induction of inducible nitric oxide synthase (iNOS) protein and iNOS mRNA expression. NO production by macrophages preactivated with LPS and IFN-gamma for 16 h was also inhibited by MJE and the phloroglucinol derivatives. Furthermore, MJE and the derivatives directly affected the conversion of L-[(14)C]arginine to L-[(14)C]citrulline by the cell extract. These results suggest that MJE and the phloroglucinol derivatives have the pharmacological ability to suppress NO production by activated macrophages. They inhibited NO production by two mechanisms: reduction of iNOS protein induction and inhibition of enzyme activity.
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Affiliation(s)
- R Ishii
- Saitama Instiute of Public Health, Japan
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47
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Pae HO, Cho H, Oh GS, Kim NY, Song EK, Kim YC, Yun YG, Kang CL, Kim JD, Kim JM, Chung HT. Bakuchiol from Psoralea corylifolia inhibits the expression of inducible nitric oxide synthase gene via the inactivation of nuclear transcription factor-kappaB in RAW 264.7 macrophages. Int Immunopharmacol 2001; 1:1849-55. [PMID: 11562076 DOI: 10.1016/s1567-5769(01)00110-2] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- H O Pae
- Medicinal Resources Research Center of Wonkwang University, Iksan, Chonbug, South Korea
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48
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Wang N, Yao X, Ishii R, Kitanaka S. Antiallergic agents from natural sources. 3. Structures and inhibitory effects on nitric oxide production and histamine release of five novel polyacetylene glucosides from Bidens parviflora WILLD. Chem Pharm Bull (Tokyo) 2001; 49:938-42. [PMID: 11515581 DOI: 10.1248/cpb.49.938] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Five new polyacetylene glucosides, bidensyneosides A1, A2, B, C (1-4), and 3-deoxybidensyneoside B (5), have been isolated from the air-dried whole plant of Bidens parviflora WILLD. The structures were identified based on spectroscopic analysis, physicochemical properties, and application of the modified Mosher method to be 3(R),8(E)-8-decene-4,6-diyne-1,3-diol 1-O-beta-D-glucopyranoside (1), deca-3(R),8(Z) 8-decene-4,6-diyne-1,3-diol 1-O-beta-D-glucopyranoside (2), 3(R)-deca-4,6,8-triyne-1,3-diol 1-O-beta-D-glucopyranoside (3), 3(R),8(E)-8-decene-4,6-diyne-1,3,10-triol 1-O-beta-D-glucopyranoside (4), and 8(E)-8-decene-4,6-diyne-1,10-diol 1-O-beta-D-glucopyranoside (5), respectively. These compounds inhibited nitric oxide (NO) production in lipopolysaccharide and interferon-gamma activated murine macrophages (RAW264.7) and also inhibited histamine release from rat mast cells stimulated by the antigen-antibody reaction.
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Affiliation(s)
- N Wang
- Department of Natural Products Chemistry, Shenyang Pharmaceutical University, China
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49
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Wang CC, Lai JE, Chen LG, Yen KY, Yang LL. Inducible nitric oxide synthase inhibitors of Chinese herbs. Part 2: naturally occurring furanocoumarins. Bioorg Med Chem 2000; 8:2701-7. [PMID: 11131161 DOI: 10.1016/s0968-0896(00)00200-5] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Inducible nitric oxide synthase (iNOS)-dependent production of nitric oxide (NO) plays an important role in inflammation. The effects of various naturally occurring furanocoumarins on NO production in lipopolysaccharide (LPS)-activated RAW 264.7 macrophage cells were evaluated in vitro. The results showed that angelicin, pimpinellin, sphondin, byakangelicol, oxypeucedanin, oxypeucedanin hydrate, xanthotoxin, and cnidilin are potential NO production inhibitors, and their IC50 values for inhibition of nitrite production were 19.5, 15.6, 9.8, 16.9, 16.8, 15.8, 16.6, and 17.7 microg/mL, respectively. Distinct structure-activity relationships were also revealed for the NO production inhibitory activities of these furanocoumarins. Activities of the angelicin type such as pimpinellin and sphondin were more potent than those of the psoralen type. Presence of a methoxy at the C6 position in the angelicin type seemed to be essential to augment the activity. Western blot analysis demonstrated that only sphondin dose-dependently inhibited the expression of the iNOS protein at 2.5-20 microg/mL. However, iNOS enzyme activity was stimulated with LPS for 12 h and sphondin was administered (20 microg/mL) for 24 h, which did not reasonably inhibit iNOS enzyme activity. L-NAME (100 microM), a known specific inhibitor of iNOS, was employed as a positive control with the same protocol and showed more than 50% inhibition activity. The results demonstrate that the NO production inhibitory activity of sphondin is due to the effect of iNOS expression, but not by direct inhibition of iNOS enzyme activity. Thus, sphondin may act as a potent inhibitor of NO production under tissue-damaging inflammatory conditions.
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Affiliation(s)
- C C Wang
- Graduate Institute of Pharmacognosy Science, Taipei Medical College, Taipei, Taiwan, ROC
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Yang LL, Lee CY, Yen KY. Induction of apoptosis by hydrolyzable tannins from Eugenia jambos L. on human leukemia cells. Cancer Lett 2000; 157:65-75. [PMID: 10893444 DOI: 10.1016/s0304-3835(00)00477-8] [Citation(s) in RCA: 88] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Eugenia jambos L. (Myrtaceae) is an antipyretic and anti-inflammatory herb of Asian folk medicine. A 70% acetone extract exerted the strongest cytotoxic effects on human leukemia cells (HL-60) from a preliminary screening of 15 plants. The cytotoxic principles were separated by bio-assay-guided fractionation to HL-60 cells; two hydrolyzable tannins (1-O-galloyl castalagin and casuarinin) were isolated from the 70% acetone extract. All significantly inhibited human promyelocytic leukemia cell line HL-60 and showed less cytotoxicity to human adenocarcinoma cell line SK-HEP-1 and normal cell lines of human lymphocytes and Chang liver cells. Thus, these compounds were exhibited the dose-dependent manner in HL-60 cells and the IC(50) were 10.8 and 12.5 microM, respectively. Flow cytometric analysis demonstrated the presence of apoptotic cells with low DNA content, a decrease of cell population at G(2)/M phase, and a concomitant increase of cell population at G(1) phase. The apoptosis induced by these two compounds was also demonstrated by DNA fragmentation assay and microscopic observation. These results suggest that the cytotoxic mechanism of both antitumor principle constituents might be the induction of apoptosis in HL-60 cells.
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Affiliation(s)
- L L Yang
- Graduate Institute of Pharmacognosy Science, Taipei Medical College, Taiwan.
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