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Mai Huong L, Huu Nghi D, Dinh Luyen N, Thu Quynh D, Huong PTT, Tai BH, Kiem PV. Hericium VN, an undescribed compound isolated from Hericium erinaceus and its cytotoxic activity on human brain astrocytoma. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2024; 26:850-857. [PMID: 38572975 DOI: 10.1080/10286020.2024.2331786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Accepted: 03/13/2024] [Indexed: 04/05/2024]
Abstract
Hericium erinaceus is a species of mushroom with high nutritional value that is used mainly as food in tropical countries. Phytochemical study of H. erinaceus led to the isolation of an undescribed compound, named as hericium VN (1), together with nine known compounds, 1-(2-formyl-1-pyrrolyl)butanoic acid (2), herierin III (3), 5'-(methylthio)adenosine (4), adenosine (5), nicotinic acid (6), (22E,24R)-5α,8α-epidioxyergosta-6,9(11),22-trien-3β-ol (7), 5α,8α-peroxycerevisterol (8), (22E,24R)-5α,8α-epidioxy-egosta-6,22-diene 3-O-β-D-glucopyranoside (9), and cerevisterol (10) based on extensive analyses of HR-ESI-MS, 1D and 2D NMR spectra. The absolute configuration of compound 1 was determined by experimental combined with calculated electronic circular dichroism spectra. Compound 7 exhibited cytotoxic effects against brain tumor cell line CCF-STTG1 with the IC50 value of 15.50 µM, compared to that of the positive control compound, doxorubicin, which showed IC50 value of 15.84 µM.
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Affiliation(s)
- Le Mai Huong
- Institute of Natural Product Chemistry, Vietnam Academy of Science and Technology (VAST), Cau Giay, Hanoi, Vietnam
| | - Do Huu Nghi
- Institute of Natural Product Chemistry, Vietnam Academy of Science and Technology (VAST), Cau Giay, Hanoi, Vietnam
| | - Nguyen Dinh Luyen
- Institute of Natural Product Chemistry, Vietnam Academy of Science and Technology (VAST), Cau Giay, Hanoi, Vietnam
| | - Dang Thu Quynh
- Institute of Natural Product Chemistry, Vietnam Academy of Science and Technology (VAST), Cau Giay, Hanoi, Vietnam
- Graduate University of Science and Technology, VAST, Cau Giay, Hanoi, Vietnam
| | | | - Bui Huu Tai
- Institute of Marine Biochemistry, VAST, Cau Giay, Hanoi, Vietnam
| | - Phan Van Kiem
- Institute of Marine Biochemistry, VAST, Cau Giay, Hanoi, Vietnam
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Oh M, Han AR, Lee J, Choi SY, Choi JW, Song NE, Hong HD, Rhee YK, Cho CW. LC-QTOF/MS-Based Profiling of the Phytochemicals in Ice Plant ( Mesembryanthemum crystallinum) and Their Bioactivities. Foods 2024; 13:1820. [PMID: 38928762 PMCID: PMC11202690 DOI: 10.3390/foods13121820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 06/03/2024] [Accepted: 06/07/2024] [Indexed: 06/28/2024] Open
Abstract
Recent assessments of the correlations between food and medicine underscore the importance of functional foods in disease prevention and management. Functional foods offer health benefits beyond basic nutrition, with fresh fruits and vegetables being particularly prominent because of their rich polyphenol content. In this study, we elucidated the phytochemicals in ice plant (Mesembryanthemum crystallinum), a globally consumed vegetable, using an LC-QTOF/MS-based untargeted detection method. The phytochemicals were clustered based on their structural similarity using molecular networking and annotated using the in silico tool for network annotation propagation. To identify the bioactive compounds, eight compounds were isolated from ice plant extracts. These compounds were identified using extensive spectroscopic methods, including 1H and 13C nuclear magnetic resonance (NMR) spectroscopy. Additionally, we evaluated the antioxidant and anti-inflammatory activities of all the isolates. Among the tested compounds, three showed antioxidant activity and all eight showed anti-inflammatory activity, demonstrating the potential of ice plant as a functional food.
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Affiliation(s)
- Mira Oh
- Traditional Food Research Group, Korea Food Research Institute, Wanju-gun 55365, Republic of Korea; (M.O.); (A.-R.H.); (J.W.C.); (N.-E.S.); (H.-D.H.); (Y.K.R.)
| | - Ah-Ram Han
- Traditional Food Research Group, Korea Food Research Institute, Wanju-gun 55365, Republic of Korea; (M.O.); (A.-R.H.); (J.W.C.); (N.-E.S.); (H.-D.H.); (Y.K.R.)
| | - Jaeyoun Lee
- College of Pharmacy, Yonsei Institute of Pharmaceutical Sciences, Yonsei University, Incheon 21983, Republic of Korea;
| | - Sang Yoon Choi
- Functional Food Materials Research Group, Korea Food Research Institute, Wanju-gun 55365, Republic of Korea;
| | - Jae Woong Choi
- Traditional Food Research Group, Korea Food Research Institute, Wanju-gun 55365, Republic of Korea; (M.O.); (A.-R.H.); (J.W.C.); (N.-E.S.); (H.-D.H.); (Y.K.R.)
| | - Nho-Eul Song
- Traditional Food Research Group, Korea Food Research Institute, Wanju-gun 55365, Republic of Korea; (M.O.); (A.-R.H.); (J.W.C.); (N.-E.S.); (H.-D.H.); (Y.K.R.)
| | - Hee-Do Hong
- Traditional Food Research Group, Korea Food Research Institute, Wanju-gun 55365, Republic of Korea; (M.O.); (A.-R.H.); (J.W.C.); (N.-E.S.); (H.-D.H.); (Y.K.R.)
| | - Young Kyoung Rhee
- Traditional Food Research Group, Korea Food Research Institute, Wanju-gun 55365, Republic of Korea; (M.O.); (A.-R.H.); (J.W.C.); (N.-E.S.); (H.-D.H.); (Y.K.R.)
| | - Chang-Won Cho
- Traditional Food Research Group, Korea Food Research Institute, Wanju-gun 55365, Republic of Korea; (M.O.); (A.-R.H.); (J.W.C.); (N.-E.S.); (H.-D.H.); (Y.K.R.)
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Abdel-Moez G, Sayed H, Khalifa A, Abd-Elrahman S, Osman M, Mohamed S. Evaluating anthelmintic, anti-platelet, and anti-coagulant activities, and identifying the bioactive phytochemicals of Amaranthus blitum L. BMC Complement Med Ther 2024; 24:183. [PMID: 38704537 PMCID: PMC11069165 DOI: 10.1186/s12906-024-04478-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Accepted: 04/19/2024] [Indexed: 05/06/2024] Open
Abstract
BACKGROUND Highlighting affordable alternative crops that are rich in bioactive phytoconstituents is essential for advancing nutrition and ensuring food security. Amaranthus blitum L. (AB) stands out as one such crop with a traditional history of being used to treat intestinal disorders, roundworm infections, and hemorrhage. This study aimed to evaluate the anthelmintic and hematologic activities across various extracts of AB and investigate the phytoconstituents responsible for these activities. METHODS In vitro anthelmintic activity against Trichinella spiralis was evaluated in terms of larval viability reduction. The anti-platelet activities were assessed based on the inhibitory effect against induced platelet aggregation. Further, effects on the extrinsic pathway, the intrinsic pathway, and the ultimate common stage of blood coagulation, were monitored through measuring blood coagulation parameters: prothrombin time (PT), activated partial thromboplastin time (aPTT), and thrombin time (TT), respectively. The structures of isolated compounds were elucidated by spectroscopic analysis. RESULTS Interestingly, a previously undescribed compound (19), N-(cis-p-coumaroyl)-ʟ-tryptophan, was isolated and identified along with 21 known compounds. Significant in vitro larvicidal activities were demonstrated by the investigated AB extracts at 1 mg/mL. Among tested compounds, compound 18 (rutin) displayed the highest larvicidal activity. Moreover, compounds 19 and 20 (N-(trans-p-coumaroyl)-ʟ-tryptophan) induced complete larval death within 48 h. The crude extract exhibited the minimal platelet aggregation of 43.42 ± 11.69%, compared with 76.22 ± 14.34% in the control plasma. Additionally, the crude extract and two compounds 19 and 20 significantly inhibited the extrinsic coagulation pathway. CONCLUSIONS These findings extend awareness about the nutritional value of AB as a food, with thrombosis-preventing capabilities and introducing a promising source for new anthelmintic and anticoagulant agents.
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Affiliation(s)
- Ghada Abdel-Moez
- Department of Pharmacognosy, Faculty of Pharmacy, Assiut University, Assiut, 71526, Egypt
| | - Hanaa Sayed
- Department of Pharmacognosy, Faculty of Pharmacy, Assiut University, Assiut, 71526, Egypt
| | - Azza Khalifa
- Department of Pharmacognosy, Faculty of Pharmacy, Assiut University, Assiut, 71526, Egypt
| | - Salwa Abd-Elrahman
- Department of Parasitology, Faculty of Veterinary Medicine, Assiut University, Assiut, 71515, Egypt
| | - Mohammed Osman
- Department of Clinical Pathology, Faculty of Medicine, Assiut University, Assiut, 71511, Egypt
| | - Shaymaa Mohamed
- Department of Pharmacognosy, Faculty of Pharmacy, Assiut University, Assiut, 71526, Egypt.
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Sakao K, Sho C, Miyata T, Takara K, Oda R, Hou DX. Verification of In Vitro Anticancer Activity and Bioactive Compounds in Cordyceps Militaris-Infused Sweet Potato Shochu Spirits. Molecules 2024; 29:2119. [PMID: 38731610 PMCID: PMC11085083 DOI: 10.3390/molecules29092119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2024] [Revised: 04/24/2024] [Accepted: 05/01/2024] [Indexed: 05/13/2024] Open
Abstract
Many liqueurs, including spirits infused with botanicals, are crafted not only for their taste and flavor but also for potential medicinal benefits. However, the scientific evidence supporting their medicinal effects remains limited. This study aims to verify in vitro anticancer activity and bioactive compounds in shochu spirits infused with Cordyceps militaris, a Chinese medicine. The results revealed that a bioactive fraction was eluted from the spirit extract with 40% ethanol. The infusion time impacted the inhibitory effect of the spirit extract on the proliferation of colon cancer-derived cell line HCT-116 cells, and a 21-day infusion showed the strongest inhibitory effect. Furthermore, the spirit extract was separated into four fractions, A-D, by high-performance liquid chromatography (HPLC), and Fractions B, C, and D, but not A, exerted the effects of proliferation inhibition and apoptotic induction of HCT-116 cells and HL-60 cells. Furthermore, Fractions B, C, and D were, respectively, identified as adenosine, cordycepin, and N6-(2-hydroxyethyl)-adenosine (HEA) by comprehensive chemical analyses, including proton nuclear magnetic resonance (1H-NMR), Fourier transform infrared spectroscopy (FT-IR), and electrospray ionization mass spectrometry (ESI-MS). To better understand the bioactivity mechanisms of cordycepin and HEA, the agonist and antagonist tests of the A3 adenosine receptor (A3AR) were performed. Cell viability was suppressed by cordycepin, and HEA was restored by the A3AR antagonist MR1523, suggesting that cordycepin and HEA possibly acted as agonists to activate A3ARs to inhibit cell proliferation. Molecular docking simulations revealed that both adenosine and cordycepin bound to the same pocket site of A3ARs, while HEA exhibited a different binding pattern, supporting a possible explanation for the difference in their bioactivity. Taken together, the present study demonstrated that cordycepin and HEA were major bioactive ingredients in Cordyceps militaries-infused sweet potato shochu spirits, which contributed to the in vitro anticancer activity.
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Affiliation(s)
- Kozue Sakao
- The United Graduate School of Agricultural Sciences, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan; (K.S.); (T.M.); (K.T.)
- Graduate School of Agriculture, Forestry and Fisheries, Kagoshima University, Kagoshima 890-0065, Japan
| | - Cho Sho
- Kirishima Shuzo Co., Ltd., 4-28-1 Shimokawahigashi, Miyakonojo, Miyazaki 885-8588, Japan;
| | - Takeshi Miyata
- The United Graduate School of Agricultural Sciences, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan; (K.S.); (T.M.); (K.T.)
- Graduate School of Agriculture, Forestry and Fisheries, Kagoshima University, Kagoshima 890-0065, Japan
| | - Kensaku Takara
- The United Graduate School of Agricultural Sciences, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan; (K.S.); (T.M.); (K.T.)
- Faculty of Agriculture, University of the Ryukyus, 1 Senbaru, Nishihara, Okinawa 903-0213, Japan
| | - Rio Oda
- Graduate School of Agriculture, Forestry and Fisheries, Kagoshima University, Kagoshima 890-0065, Japan
| | - De-Xing Hou
- The United Graduate School of Agricultural Sciences, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan; (K.S.); (T.M.); (K.T.)
- Graduate School of Agriculture, Forestry and Fisheries, Kagoshima University, Kagoshima 890-0065, Japan
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Tang X, Zhou Y, Wang Y, Lin Y, Pan S, Che Q, Sang J, Gao Z, Zhang W, Wang Y, Li G, Gao L, Wang Z, Yang X, Liu A, Wang S, Yu B, Xu P, Wang Z, Zhang Z, Yang P, Xie W, Sun H, Li W. Direct Synthesis of α- and β-2'-Deoxynucleosides with Stereodirecting Phosphine Oxide via Remote Participation. J Am Chem Soc 2024; 146:8768-8779. [PMID: 38483318 DOI: 10.1021/jacs.4c01780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/28/2024]
Abstract
2'-Deoxynucleosides and analogues play a vital role in drug development, but their preparation remains a significant challenge. Previous studies have focused on β-2'-deoxynucleosides with the natural β-configuration. In fact, their isomeric α-2'-deoxynucleosides also exhibit diverse bioactivities and even better metabolic stability. Herein, we report that both α- and β-2'-deoxynucleosides can be prepared with high yields and stereoselectivity using a remote directing diphenylphosphinoyl (DPP) group. It is particularly efficient to prepare α-2'-deoxynucleosides with an easily accessible 3,5-di-ODPP donor. Instead of acting as a H-bond acceptor on a 2-(diphenylphosphinoyl)acetyl (DPPA) group in our previous studies for syn-facial O-glycosylation, the phosphine oxide moiety here acts as a remote participating group to enable highly antifacial N-glycosylation. This proposed remote participation mechanism is supported by our first characterization of an important 1,5-briged P-heterobicyclic intermediate via variable-temperature NMR spectroscopy. Interestingly, antiproliferative assays led to a α-2'-deoxynucleoside with IC50 values in the low micromole range against central nervous system tumor cell lines SH-SY5Y and LN229, whereas its β-anomer exhibited no inhibition at 100 μM. Furthermore, the DPP group significantly enhanced the antitumor activities by 10 times.
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Affiliation(s)
- Xintong Tang
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, 639 Longmian Avenue, Nanjing, Jiangsu 211198, China
| | - Yueer Zhou
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, 639 Longmian Avenue, Nanjing, Jiangsu 211198, China
| | - Yingjie Wang
- State Key Laboratory of Chemical Biology, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
| | - Yetong Lin
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, 639 Longmian Avenue, Nanjing, Jiangsu 211198, China
| | - Shuheng Pan
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, 639 Longmian Avenue, Nanjing, Jiangsu 211198, China
| | - Qianwei Che
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, 639 Longmian Avenue, Nanjing, Jiangsu 211198, China
| | - Jinpeng Sang
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, 639 Longmian Avenue, Nanjing, Jiangsu 211198, China
| | - Ziming Gao
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, 639 Longmian Avenue, Nanjing, Jiangsu 211198, China
| | - Weiting Zhang
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, 639 Longmian Avenue, Nanjing, Jiangsu 211198, China
| | - Yuanyuan Wang
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, 639 Longmian Avenue, Nanjing, Jiangsu 211198, China
| | - Guolong Li
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, 639 Longmian Avenue, Nanjing, Jiangsu 211198, China
| | - Longwei Gao
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, 639 Longmian Avenue, Nanjing, Jiangsu 211198, China
| | - Zhimei Wang
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, 639 Longmian Avenue, Nanjing, Jiangsu 211198, China
| | - Xudong Yang
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, 639 Longmian Avenue, Nanjing, Jiangsu 211198, China
| | - Ao Liu
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, 639 Longmian Avenue, Nanjing, Jiangsu 211198, China
| | - Suyu Wang
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, 639 Longmian Avenue, Nanjing, Jiangsu 211198, China
| | - Biao Yu
- State Key Laboratory of Chemical Biology, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
| | - Peng Xu
- State Key Laboratory of Chemical Biology, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
| | - Zhe Wang
- Department of TCMs Pharmaceuticals, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 639 Longmian Avenue, Nanjing, Jiangsu 211198, China
| | - Zhaolun Zhang
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, 639 Longmian Avenue, Nanjing, Jiangsu 211198, China
| | - Peng Yang
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, 639 Longmian Avenue, Nanjing, Jiangsu 211198, China
| | - Weijia Xie
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, 639 Longmian Avenue, Nanjing, Jiangsu 211198, China
| | - Haopeng Sun
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, 639 Longmian Avenue, Nanjing, Jiangsu 211198, China
| | - Wei Li
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, 639 Longmian Avenue, Nanjing, Jiangsu 211198, China
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Leonard P, Zhang A, Budow-Busse S, Daniliuc C, Seela F. α-D-2'-Deoxyadenosine, an irradiation product of canonical DNA and a component of anomeric nucleic acids: crystal structure, packing and Hirshfeld surface analysis. Acta Crystallogr C Struct Chem 2024; 80:21-29. [PMID: 38252461 PMCID: PMC10844955 DOI: 10.1107/s2053229624000457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Accepted: 01/11/2024] [Indexed: 01/23/2024] Open
Abstract
α-D-2'-Deoxyribonucleosides are products of the γ-irradiation of DNA under oxygen-free conditions and are constituents of anomeric DNA. They are not found as natural building blocks of canonical DNA. Reports on their conformational properties are limited. Herein, the single-crystal X-ray structure of α-D-2'-deoxyadenosine (α-dA), C10H13N5O3, and its conformational parameters were determined. In the crystalline state, α-dA forms two conformers in the asymmetric unit which are connected by hydrogen bonds. The sugar moiety of each conformer is arranged in a `clamp'-like fashion with respect to the other conformer, forming hydrogen bonds to its nucleobase and sugar residue. For both conformers, a syn conformation of the nucleobase with respect to the sugar moiety was found. This is contrary to the anti conformation usually preferred by α-nucleosides. The sugar conformation of both conformers is C2'-endo, and the 5'-hydroxyl groups are in a +sc orientation, probably due to the hydrogen bonds formed by the conformers. The formation of the supramolecular assembly of α-dA is controlled by hydrogen bonding and stacking interactions, which was verified by a Hirshfeld and curvedness surface analysis. Chains of hydrogen-bonded nucleobases extend parallel to the b direction and are linked to equivalent chains by hydrogen bonds involving the sugar moieties to form a sheet. A comparison of the solid-state structures of the anomeric 2'-deoxyadenosines revealed significant differences of their conformational parameters.
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Affiliation(s)
- Peter Leonard
- Laboratory of Bioorganic Chemistry and Chemical Biology, Center for Nanotechnology, Heisenbergstrasse 11, 48149 Münster, Germany
| | - Aigui Zhang
- Laboratory of Bioorganic Chemistry and Chemical Biology, Center for Nanotechnology, Heisenbergstrasse 11, 48149 Münster, Germany
| | - Simone Budow-Busse
- Laboratory of Bioorganic Chemistry and Chemical Biology, Center for Nanotechnology, Heisenbergstrasse 11, 48149 Münster, Germany
| | - Constantin Daniliuc
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
| | - Frank Seela
- Laboratory of Bioorganic Chemistry and Chemical Biology, Center for Nanotechnology, Heisenbergstrasse 11, 48149 Münster, Germany
- Laboratorium für Organische und Bioorganische Chemie, Institut für Chemie, Universität Osnabrück, Barbarastrasse 7, Osnabrück 49069, Germany
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Fu YP, Malterud KE, Hamre AG, Inngjerdingen KT, Wangensteen H. Polysaccharides and Bioactive Phenolics from Aconitum septentrionale Roots. Chem Biodivers 2023; 20:e202300161. [PMID: 37337851 DOI: 10.1002/cbdv.202300161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 05/10/2023] [Accepted: 06/19/2023] [Indexed: 06/21/2023]
Abstract
Aconitum septentrionale is known to contain toxic diterpene alkaloids, while other bioactive compounds in the plant remain unclear. The aim of this study was to explore the phenolic compounds and polysaccharides from the water extract of A. septentrionale roots. Fifteen phenolic compounds were isolated and identified by NMR and MS, including fourteen known and one new dianthramide glucoside (2-[[2-(β-D-glucopyranosyloxy)-5-hydroxybenzoyl]amino]-4,5-dihydroxybenzoic acid methyl ester, 14). One neutral (complex of glucans with minor amounts of mannans) and two acidic polysaccharide fractions (complexes of pectic polysaccharides and glucans) were also obtained. Hydroxytyrosol (1), hydroxytyrosol-1-O-β-glucoside (2) and bracteanolide A (7) inhibited the release of nitric oxide by dendritic cells. Magnoflorine (8) and 2-[[2-(β-D-glucopyranosyloxy)-5-hydroxybenzoyl]amino]-5-hydroxybenzoic acid methyl ester (12) inhibited 15-lipoxygenase, and bracteanolide A (7) was a moderate inhibitor of xanthine oxidase. This study is the first to describe the diversity of phenolics and polysaccharides from A. septentrionale and their anti-inflammatory and anti-oxidant activities.
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Affiliation(s)
- Yu-Ping Fu
- Section for Pharmaceutical Chemistry, Department of Pharmacy, University of Oslo, P. O. Box 1068 Blindern, 0316, Oslo, Norway
| | - Karl Egil Malterud
- Section for Pharmaceutical Chemistry, Department of Pharmacy, University of Oslo, P. O. Box 1068 Blindern, 0316, Oslo, Norway
| | - Anne Grethe Hamre
- Section for Pharmaceutical Chemistry, Department of Pharmacy, University of Oslo, P. O. Box 1068 Blindern, 0316, Oslo, Norway
| | - Kari Tvete Inngjerdingen
- Section for Pharmaceutical Chemistry, Department of Pharmacy, University of Oslo, P. O. Box 1068 Blindern, 0316, Oslo, Norway
| | - Helle Wangensteen
- Section for Pharmaceutical Chemistry, Department of Pharmacy, University of Oslo, P. O. Box 1068 Blindern, 0316, Oslo, Norway
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Lam YTH, Hoppe J, Dang QN, Porzel A, Soboleva A, Brandt W, Rennert R, Hussain H, Davari MD, Wessjohann L, Arnold N. Purpurascenines A-C, Azepino-Indole Alkaloids from Cortinarius purpurascens: Isolation, Biosynthesis, and Activity Studies on the 5-HT 2A Receptor. JOURNAL OF NATURAL PRODUCTS 2023; 86:1373-1384. [PMID: 37306303 DOI: 10.1021/acs.jnatprod.2c00716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Three previously undescribed azepino-indole alkaloids, named purpurascenines A-C (1-3), together with the new-to-nature 7-hydroxytryptophan (4) as well as two known compounds, adenosine (5) and riboflavin (6), were isolated from fruiting bodies of Cortinarius purpurascens Fr. (Cortinariaceae). The structures of 1-3 were elucidated based on spectroscopic analyses and ECD calculations. Furthermore, the biosynthesis of purpurascenine A (1) was investigated by in vivo experiments using 13C-labeled sodium pyruvate, alanine, and sodium acetate incubated with fruiting bodies of C. purpurascens. The incorporation of 13C into 1 was analyzed using 1D NMR and HRESIMS methods. With [3-13C]-pyruvate, a dramatic enrichment of 13C was observed, and hence a biosynthetic route via a direct Pictet-Spengler reaction between α-keto acids and 7-hydroxytryptophan (4) is suggested for the biosynthesis of purpurascenines A-C (1-3). Compound 1 exhibits no antiproliferative or cytotoxic effects against human prostate (PC-3), colorectal (HCT-116), and breast (MCF-7) cancer cells. An in silico docking study confirmed the hypothesis that purpurascenine A (1) could bind to the 5-HT2A serotonin receptor's active site. A new functional 5-HT2A receptor activation assay showed no functional agonistic but some antagonistic effects of 1 against the 5-HT-dependent 5-HT2A activation and likely antagonistic effects on putative constitutive activity of the 5-HT2A receptor.
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Affiliation(s)
- Yen T H Lam
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Weinberg 3, D-06120 Halle (Saale), Germany
- Department of Organic Chemistry, Faculty of Chemistry, Hanoi National University of Education, 136 Xuanthuy, Caugiay, Hanoi 100000, Vietnam
| | - Jana Hoppe
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Weinberg 3, D-06120 Halle (Saale), Germany
| | - Quang N Dang
- Department of Organic Chemistry, Faculty of Chemistry, Hanoi National University of Education, 136 Xuanthuy, Caugiay, Hanoi 100000, Vietnam
| | - Andrea Porzel
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Weinberg 3, D-06120 Halle (Saale), Germany
| | - Alena Soboleva
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Weinberg 3, D-06120 Halle (Saale), Germany
| | - Wolfgang Brandt
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Weinberg 3, D-06120 Halle (Saale), Germany
| | - Robert Rennert
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Weinberg 3, D-06120 Halle (Saale), Germany
| | - Hidayat Hussain
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Weinberg 3, D-06120 Halle (Saale), Germany
| | - Mehdi D Davari
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Weinberg 3, D-06120 Halle (Saale), Germany
| | - Ludger Wessjohann
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Weinberg 3, D-06120 Halle (Saale), Germany
| | - Norbert Arnold
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Weinberg 3, D-06120 Halle (Saale), Germany
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Andy D, Gunaratne GS, Marchant JS, Walseth TF, Slama JT. Synthesis and biological evaluation of novel photo-clickable adenosine and cyclic ADP-ribose analogs: 8-N 3-2'-O-propargyladenosine and 8-N 3-2'-O-propargyl-cADPR. Bioorg Med Chem 2022; 76:117099. [PMID: 36446271 PMCID: PMC9842072 DOI: 10.1016/j.bmc.2022.117099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 11/03/2022] [Accepted: 11/15/2022] [Indexed: 11/22/2022]
Abstract
A photo-clickable analog of adenosine was devised and synthesized in which the photoactive functional group (8-azidoadenosine) and the click moiety (2'-O-propargyl-ether) were compactly combined within the structure of the adenosine nucleoside itself. We synthesized 8-N3-2'-O-propargyl adenosine in four steps starting from adenosine. This photo-clickable adenosine was 5'-phosphorylated and coupled to nicotinamide mononucleotide to form the NAD analog 8-N3-2'-O-propargyl-NAD. This NAD analog was recognized by Aplysia californica ADP-ribosyl cyclase and enzymatically cyclized producing 8-N3-2'-O-propargyl cyclic ADP-ribose. Photo-clickable cyclic-ADP-ribose analog was envisioned as a probe to label cyclic ADP-ribose binding proteins. The monofunctional 8-N3-cADPR has previously been shown to be an antagonist of cADPR-induced calcium release [T.F. Walseth et. al., J. Biol. Chem (1993) 268, 26686-26691]. 2'-O-propargyl-cADPR was recognized as an agonist which elicited Ca2+ release when added at low concentration to sea urchin egg homogenates. The bifunctional 8-N3-2'-O-propargyl cyclic ADP-ribose did not elicit Ca2+ release at low concentration or impact cyclic ADP-ribose mediated Ca2+ release either when added to sea urchin egg homogenates or when microinjected into cultured human U2OS cells. The photo-clickable adenosine will none-the-less be a useful scaffold for synthesizing photo-clickable probes for identifying proteins that interact with a variety of adenosine nucleotides.
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Affiliation(s)
- Divya Andy
- Department of Medicinal and Biological Chemistry, College of Pharmacy and Pharmaceutical Sciences, University of Toledo, 3000 Arlington Avenue, Toledo, OH 43614, USA
| | - Gihan S Gunaratne
- Department of Pharmacology, University of Minnesota Medical School, 312 Church St, Minneapolis, MN 55455-0217, USA
| | - Jonathan S Marchant
- Department of Cell Biology, Neurobiology & Anatomy, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226-0509, USA
| | - Timothy F Walseth
- Department of Pharmacology, University of Minnesota Medical School, 312 Church St, Minneapolis, MN 55455-0217, USA
| | - James T Slama
- Department of Medicinal and Biological Chemistry, College of Pharmacy and Pharmaceutical Sciences, University of Toledo, 3000 Arlington Avenue, Toledo, OH 43614, USA.
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10
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Secondary Metabolites of Marine Microalga Schizochytrium limacinum. Chem Nat Compd 2022. [DOI: 10.1007/s10600-022-03899-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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11
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Isolation and identification of compounds from truffle Reddellomyces westraliensis and their antioxidant, cytotoxic and enzyme inhibitory activities. Process Biochem 2022. [DOI: 10.1016/j.procbio.2022.08.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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12
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Dan NT, Giang LT, Dinh CN, Hai TB, Hoi ND, Loan VT, Hang DTT, Nhiem NX, Huu Tai B, Van Kiem P. Two New Sterol Sulfates from Marine Spider Conch Lambis Lambis Linnaeus, 1758. Nat Prod Commun 2022. [DOI: 10.1177/1934578x221113184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Two new (1 and 2) and six known (3-8) compounds were isolated from the methanolic extract of the Vietnamese marine spider conch Lambis lambis Linnaeus, 1758. Based on comprehensive spectroscopic analyses, particularly HRESIMS, and 1D- and 2D-NMR spectra, their chemical structures were determined to be 25,26,27-tri-nor-cholest-5-ene-2 β,3 α,24-triol-2,24-disulfate (1), 25,26,27-tri-nor-cholesta-2 β,3 α,24-triol-3,24-disulfate (2), 25,26,27-tri-nor-cholesta-2β,3α,24-triol-2,3,24-trisulfate (solomonsterol A, 3), 1- O-arachidonoyl-3- O-stearylglycerol (4), eicosapentaenoic acid (5), adenosine (6), adenine (7), and uracil (8). This is the first report of compounds 3-8 from L. lambis.
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Affiliation(s)
| | - Le Thi Giang
- Thai Nguyen University of Medicine and Pharmacy, Thai Nguyen City, Vietnam
| | | | | | | | - Vu Thi Loan
- Vietnam - Russia Tropical Center, Hanoi, Vietnam
| | - Dan Thi Thuy Hang
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Nguyen Xuan Nhiem
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
- Graduate University of Science and Technology, VAST, Hanoi, Vietnam
| | - Bui Huu Tai
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
- Graduate University of Science and Technology, VAST, Hanoi, Vietnam
| | - Phan Van Kiem
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
- Graduate University of Science and Technology, VAST, Hanoi, Vietnam
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13
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Mohamed NM, Ahmed MAM, Khan SI, Fronczek FR, Mohammed AF, Ross SA. Anti-inflammatory and cytotoxic specialised metabolites from the leaves of Glandularia × hybrida. PHYTOCHEMISTRY 2022; 195:113054. [PMID: 34979354 DOI: 10.1016/j.phytochem.2021.113054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Revised: 12/06/2021] [Accepted: 12/08/2021] [Indexed: 06/14/2023]
Abstract
In our ongoing effort to investigate active specialised metabolites from genus Glandularia, phytochemical studies on the ethanolic extract of Glandularia × hybrida (Groenl. & Rümpler) G.L. Nesom & Pruski leaves resulted in the isolation of three undescribed compounds, a dibenzylbutyrolactolic lignan and two echinocystic acid based triterpenoid saponins, in addition to two known compounds. Interestingly, this study reports isolation of chemo-systematically valuable specialised metabolites for the first time from the genus under investigation. Additionally, the isolated metabolites were evaluated for their iNOS inhibition and cytotoxic activities using a combination of in silico and in vitro studies. The pharmacokinetics properties (ADMET) of some of the isolated compounds were determined using pkCSM-pharmacokinetics server. Molecular docking analysis showed that saponin compound possesses higher negative score (-9.59 kcal/mol) than the lignan compound (-6.56 kcal/mol). The isolated compounds also showed iNOS inhibition activity with IC50 values ranging between 6.6 and 49.7 μM and significant cytotoxic activity against a series of cell lines including SK-MEL, KB, BT-549, SK-OV-3, LLC-PK1 and VERO cells. Hence, this study reveals that specialised metabolites from G. hybrida plant are of significant anti-inflammatory and cytotoxicity potentials.
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Affiliation(s)
- Nesma M Mohamed
- Department of Pharmacognosy, Faculty of Pharmacy, Assiut University, Assiut, 71526, Egypt
| | - Mai A M Ahmed
- Department of Pharmacognosy, Faculty of Pharmacy, Assiut University, Assiut, 71526, Egypt
| | - Shabana I Khan
- National Center for Natural Products Research, Research Institute of Pharmaceutical Sciences, School of Pharmacy, University of Mississippi, University, MS, 38677, USA; Division of Pharmacognosy, Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, University, MS, 38677, USA
| | - Frank R Fronczek
- Department of Chemistry, Louisiana State University, Baton Rouge, LA, 70803, USA
| | - Anber F Mohammed
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Assiut University, Assiut, 71526, Egypt
| | - Samir A Ross
- National Center for Natural Products Research, Research Institute of Pharmaceutical Sciences, School of Pharmacy, University of Mississippi, University, MS, 38677, USA; Division of Pharmacognosy, Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, University, MS, 38677, USA.
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14
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Alfattani A, Marcourt L, Hofstetter V, Queiroz EF, Leoni S, Allard PM, Gindro K, Stien D, Perron K, Wolfender JL. Combination of Pseudo-LC-NMR and HRMS/MS-Based Molecular Networking for the Rapid Identification of Antimicrobial Metabolites From Fusarium petroliphilum. Front Mol Biosci 2021; 8:725691. [PMID: 34746230 PMCID: PMC8569130 DOI: 10.3389/fmolb.2021.725691] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Accepted: 09/06/2021] [Indexed: 01/31/2023] Open
Abstract
An endophytic fungal strain isolated from a seagrass endemic to the Mediterranean Sea (Posidonia oceanica) was studied in order to identify its antimicrobial constituents and further characterize the composition of its metabolome. It was identified as Fusarium petroliphilum by in-depth phylogenetic analyses. The ethyl acetate extract of that strain exhibited antimicrobial activities and an ability to inhibit quorum sensing of Staphylococcus aureus. To perform this study with a few tens of mg of extract, an innovative one-step generic strategy was devised. On one side, the extract was analyzed by UHPLC-HRMS/MS molecular networking for dereplication. On the other side, semi-preparative HPLC using a similar gradient profile was used for a single-step high-resolution fractionation. All fractions were systematically profiled by 1H-NMR. The data were assembled into a 2D contour map, which we call “pseudo-LC-NMR,” and combined with those of UHPLC-HRMS/MS. This further highlighted the connection within structurally related compounds, facilitated data interpretation, and provided an unbiased quantitative profiling of the main extract constituents. This innovative strategy led to an unambiguous characterization of all major specialized metabolites of that extract and to the localization of its bioactive compounds. Altogether, this approach identified 22 compounds, 13 of them being new natural products and six being inhibitors of the quorum sensing mechanism of S. aureus and Pseudomonas aeruginosa. Minor analogues were also identified by annotation propagation through the corresponding HRMS/MS molecular network, which enabled a consistent annotation of 27 additional metabolites. This approach was designed to be generic and applicable to natural extracts of the same polarity range.
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Affiliation(s)
- Abdulelah Alfattani
- School of Pharmaceutical Sciences, University of Geneva, Geneva, Switzerland.,Institute of Pharmaceutical Sciences of Western Switzerland, ISPSO, University of Geneva, Geneva, Switzerland
| | - Laurence Marcourt
- School of Pharmaceutical Sciences, University of Geneva, Geneva, Switzerland.,Institute of Pharmaceutical Sciences of Western Switzerland, ISPSO, University of Geneva, Geneva, Switzerland
| | - Valérie Hofstetter
- Institute for Plant Production Sciences IPS, Agroscope, Nyon, Switzerland
| | - Emerson Ferreira Queiroz
- School of Pharmaceutical Sciences, University of Geneva, Geneva, Switzerland.,Institute of Pharmaceutical Sciences of Western Switzerland, ISPSO, University of Geneva, Geneva, Switzerland
| | - Sara Leoni
- Microbiology Unit, Department of Botany and Plant Biology, University of Geneva, Geneva, Switzerland
| | - Pierre-Marie Allard
- School of Pharmaceutical Sciences, University of Geneva, Geneva, Switzerland.,Institute of Pharmaceutical Sciences of Western Switzerland, ISPSO, University of Geneva, Geneva, Switzerland
| | - Katia Gindro
- Institute for Plant Production Sciences IPS, Agroscope, Nyon, Switzerland
| | - Didier Stien
- Laboratoire de Biodiversité et Biotechnologie Microbienne, USR3579, CNRS, Sorbonne Université, Banyuls-sur-mer, France
| | - Karl Perron
- Microbiology Unit, Department of Botany and Plant Biology, University of Geneva, Geneva, Switzerland
| | - Jean-Luc Wolfender
- School of Pharmaceutical Sciences, University of Geneva, Geneva, Switzerland.,Institute of Pharmaceutical Sciences of Western Switzerland, ISPSO, University of Geneva, Geneva, Switzerland
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15
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Cao Y, Zhou M, Mao RZ, Zou Y, Xia F, Liu DK, Liu J, Li Q, Xiong DC, Ye XS. Visible-light-promoted 3,5-dimethoxyphenyl glycoside activation and glycosylation. Chem Commun (Camb) 2021; 57:10899-10902. [PMID: 34590634 DOI: 10.1039/d1cc04473g] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A new glycosylation method promoted by visible light with 3,5-dimethoxyphenyl glycoside as the donor was developed. This protocol delivers both O-glycosides and N-glycosides in moderate to excellent yields using a wide range of O-nucleophiles and nucleobases as the glycosyl acceptors.
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Affiliation(s)
- Yafei Cao
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Xue Yuan Road No. 38, Beijing 100191, China.
| | - Minmin Zhou
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Xue Yuan Road No. 38, Beijing 100191, China. .,School of Chemical Engineering, Dalian University of Technology, Dalian 116024, Liaoning, China
| | - Run-Ze Mao
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Xue Yuan Road No. 38, Beijing 100191, China.
| | - You Zou
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Xue Yuan Road No. 38, Beijing 100191, China.
| | - Feng Xia
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Xue Yuan Road No. 38, Beijing 100191, China.
| | - Da-Ke Liu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Xue Yuan Road No. 38, Beijing 100191, China.
| | - Jianhui Liu
- School of Chemical Engineering, Dalian University of Technology, Dalian 116024, Liaoning, China
| | - Qin Li
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Xue Yuan Road No. 38, Beijing 100191, China.
| | - De-Cai Xiong
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Xue Yuan Road No. 38, Beijing 100191, China. .,State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210023, Jiangsu, China
| | - Xin-Shan Ye
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Xue Yuan Road No. 38, Beijing 100191, China.
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16
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Oh M, Kim SY, Park S, Kim KN, Kim SH. Phytochemicals in Chinese Chive ( Allium tuberosum) Induce the Skeletal Muscle Cell Proliferation via PI3K/Akt/mTOR and Smad Pathways in C2C12 Cells. Int J Mol Sci 2021; 22:2296. [PMID: 33669060 PMCID: PMC7956299 DOI: 10.3390/ijms22052296] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 02/18/2021] [Accepted: 02/22/2021] [Indexed: 01/10/2023] Open
Abstract
Chinese chive (Allium tuberosum) is a medicinal food that is cultivated and consumed mainly in Asian countries. Its various phytochemicals and physiological effects have been reported, but only a few phytochemicals are available for skeletal muscle cell proliferation. Herein, we isolated a new compound, kaempferol-3-O-(6″-feruloyl)-sophoroside (1), along with one known flavonoid glycoside (2) and six amino acid (3-8) compounds from the water-soluble fraction of the shoot of the Chinese chive. The isolated compounds were identified using extensive spectroscopic methods, including 1D and 2D NMR, and evaluated for their proliferation activity on skeletal muscle cells. Among the tested compounds, newly isolated flavonoid (1) and 5-aminouridine (7) up-regulated PI3K/Akt/mTOR pathways, which implies a positive effect on skeletal muscle growth and differentiation. In particular, compound 1 down-regulated the Smad pathways, which are negative regulators of skeletal muscle growth. Collectively, we suggest that major constituents of Chinese chive, flavonoids and amino acids, might be used in dietary supplements that aid skeletal muscle growth.
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Affiliation(s)
- Mira Oh
- College of pharmacy, Yonsei Institute of Pharmaceutical Sciences, Yonsei University, Incheon 21983, Korea;
| | - Seo-Young Kim
- Chuncheon Center, Korea Basic Science Institute (KBSI), Chuncheon 24341, Korea; (S.-Y.K.); (S.P.)
| | - SeonJu Park
- Chuncheon Center, Korea Basic Science Institute (KBSI), Chuncheon 24341, Korea; (S.-Y.K.); (S.P.)
| | - Kil-Nam Kim
- Chuncheon Center, Korea Basic Science Institute (KBSI), Chuncheon 24341, Korea; (S.-Y.K.); (S.P.)
| | - Seung Hyun Kim
- College of pharmacy, Yonsei Institute of Pharmaceutical Sciences, Yonsei University, Incheon 21983, Korea;
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17
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Bakr RO, El-Behairy MF, Elissawy AM, Elimam H, Fayed MAA. New Adenosine Derivatives from Aizoon canariense L.: In Vitro Anticholinesterase, Antimicrobial, and Cytotoxic Evaluation of Its Extracts. Molecules 2021; 26:1198. [PMID: 33668096 PMCID: PMC7956659 DOI: 10.3390/molecules26051198] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 02/19/2021] [Accepted: 02/20/2021] [Indexed: 01/11/2023] Open
Abstract
Aizoaceae is a large succulent family characterized by many psychoactive species. Aizoon canariense L., a wild neglected plant traditionally used in gastrointestinal ailments, has been the subject of a limited number of phytochemical and biological studies. Therefore, herein, we investigated the in vitro cytotoxic, antimicrobial, and anticholinesteraseactivity of the aerial parts of A. canariense L. and analyzed the phytochemical compositions of the lipoidal and alkaloidal fractions. Petroleum ether extract showed the presence of behenic and tricosylic acid, while an in-depth investigation of the alkaloidal fraction revealed the identification of new adenine based alkaloids (1-5), which were isolated and identified for the first time from Aizoon canariense L. Their structures were elucidated based on extensive spectroscopic analyses. The alkaloidal extract showed a powerful cytotoxic effect (IC50 14-28 μg/mL), with the best effect against colon carcinoma, followed by liver and breast carcinomas. The alkaloidal extract also had a potent effect against Candida albicans and Escherichia coli, with minimum inhibitory concentrations (MIC) values of 312.5 and 625 µg/mL. The in vitro anticholinesterase activity was potent, with IC50 < 200 ng/mL for the tested extracts compared with 27.29 ± 0.49 ng/mL for tacrine.
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Affiliation(s)
- Riham O. Bakr
- Department of Pharmacognosy, Faculty of Pharmacy, October University for Modern Sciences and Arts (MSA), Giza 11787, Egypt;
| | - Mohammed F. El-Behairy
- Department of Organic and Medicinal Chemistry, Faculty of Pharmacy, University of Sadat City, Sadat 32897, Egypt;
| | - Ahmed M. Elissawy
- Department of Pharmacognosy, Faculty of Pharmacy, Ain Shams University, Cairo 11566, Egypt;
- Center for Drug Discovery Research and Development, Ain Shams University, Cairo 11566, Egypt
| | - Hanan Elimam
- Department of Biochemistry, Faculty of Pharmacy, University of Sadat City, Sadat 32897, Egypt;
| | - Marwa A. A. Fayed
- Department of Pharmacognosy, Faculty of Pharmacy, University of Sadat City, Sadat 32897, Egypt
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18
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Hori K, Watanabe T, Devkota HP. Phenolic Acid Derivatives, Flavonoids and Other Bioactive Compounds from the Leaves of Cardiocrinum cordatum (Thunb.) Makino (Liliaceae). PLANTS 2021; 10:plants10020320. [PMID: 33562289 PMCID: PMC7915501 DOI: 10.3390/plants10020320] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 01/29/2021] [Accepted: 02/05/2021] [Indexed: 11/28/2022]
Abstract
Cardiocrinum cordatum (Thunb.) Makino (Family: Liliaceae), commonly known as ‘Ubayuri’, is native to Japan and some islands in the Russian Far East. It has high value as food, medicinal, and ornamental species. The aim of this study was to isolate and characterize the main chemical constituents of the leaves of C. cordatum. A total of 19 compounds, namely caffeic acid (1), caffeic acid methyl ester (2), caffeic acid β-glucopyranosyl ester (3), caffeic acid 4-O-β-glucopyranoside (4), ferulic acid (5), isoferulic acid (6), protocatechuic acid (7), syringic acid (8), 2,6-dimethoxy-p-hydroquinone 1-O-β-glucopyranoside (9), esculetin (10), taxifolin (11), quercetin 3-O-(6-O-α-rhamnopyranosyl)β-glucopyranoside-7-O-β-rhamnopyranoside (12), 2,7-dimethyl-2,4-diene-deca-α,ω-diacid β-glucopyranoside (13), 4-[formyl-5-(methoxymethyl)-1H-pyrrol-1-yl]butanoic acid (14), (3Z)-3-hexenyl β-glucopyranoside (15), tryptophan (16), adenine (17), adenosine (18), and 2-deoxyadenosine (19) were isolated using various chromatographic methods. The structures of isolated compounds were elucidated on the basis of their NMR spectroscopic data. All these compounds were isolated for the first time from the genus Cardiocrinum. Phenolic acid derivatives and flavonoids can be considered as chemotaxonomic markers in the leaves of Cardiocrinum species.
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Affiliation(s)
- Kengo Hori
- Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan; (K.H.); (T.W.)
- Analytical Research Laboratories, Pharmaceutical Technology, Astellas Pharma Inc., 160-2, Akahama, Takahagi-shi, Ibaraki 318-0001, Japan
| | - Takashi Watanabe
- Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan; (K.H.); (T.W.)
| | - Hari Prasad Devkota
- Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan; (K.H.); (T.W.)
- Program for Leading Graduate Schools, Health Life Science: Interdisciplinary and Glocal Oriented (HIGO) Program, 5-1 Oe-honmachi, Chuo ku, Kumamoto 862-0973, Japan
- Correspondence:
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19
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20
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Kim HM, Kwon J, Lee K, Lee JW, Jang DS, Kwon HC. Constituents of Gastrodia elata and Their Neuroprotective Effects in HT22 Hippocampal Neuronal, R28 Retinal Cells, and BV2 Microglial Cells. PLANTS 2020; 9:plants9081051. [PMID: 32824809 PMCID: PMC7465223 DOI: 10.3390/plants9081051] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 08/11/2020] [Accepted: 08/17/2020] [Indexed: 11/16/2022]
Abstract
Gastrodia elata is widely used in traditional medicine and contains various types of metabolites with pharmacological activity. In the course of searching for neuroprotective molecules associated with the potential of G. elata in the treatment of neurodegenerative disorders, two new phenolic compounds (1 and 2) and a new tripeptide (3), together with 16 known compounds (4–19), were isolated from the rhizomes of G. elata. The structures of the compounds were determined by the interpretation of spectroscopic data, including nuclear magnetic resonance and mass spectrometry data. All obtained compounds were assessed for their ability to protect neuronal cells against neurotoxicity and neuroinflammation. Of these, 4 and 5 were found to possess moderate activities in HT22 hippocampal neuronal cells, whereas 2, 6, and 7 showed weak activities in R28 retinal cells. Additionally, compound 9 showed moderate inhibitory activity on lipopolysaccharide-induced nitric oxide production in BV2 microglial cells.
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Affiliation(s)
- Hye Mi Kim
- College of Pharmacy, Kyung Hee University, Seoul 02447, Korea;
| | - Jaeyoung Kwon
- KIST Gangneung Institute of Natural Products, Korea Institute of Science and Technology (KIST), Gangneung 25451, Korea; (J.K.); (K.L.); (J.W.L.)
| | - Kyerim Lee
- KIST Gangneung Institute of Natural Products, Korea Institute of Science and Technology (KIST), Gangneung 25451, Korea; (J.K.); (K.L.); (J.W.L.)
- KHU-KIST Department of Converging Science and Technology, Kyung Hee University, Seoul 02447, Korea
| | - Jae Wook Lee
- KIST Gangneung Institute of Natural Products, Korea Institute of Science and Technology (KIST), Gangneung 25451, Korea; (J.K.); (K.L.); (J.W.L.)
| | - Dae Sik Jang
- College of Pharmacy, Kyung Hee University, Seoul 02447, Korea;
- KHU-KIST Department of Converging Science and Technology, Kyung Hee University, Seoul 02447, Korea
- Correspondence: (D.S.J.); (H.C.K.)
| | - Hak Cheol Kwon
- KIST Gangneung Institute of Natural Products, Korea Institute of Science and Technology (KIST), Gangneung 25451, Korea; (J.K.); (K.L.); (J.W.L.)
- KHU-KIST Department of Converging Science and Technology, Kyung Hee University, Seoul 02447, Korea
- Correspondence: (D.S.J.); (H.C.K.)
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21
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2-Hydroxysorangiadenosine: Structure and Biosynthesis of a Myxobacterial Sesquiterpene-Nucleoside. Molecules 2020; 25:molecules25112676. [PMID: 32527018 PMCID: PMC7321100 DOI: 10.3390/molecules25112676] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 06/05/2020] [Accepted: 06/05/2020] [Indexed: 12/02/2022] Open
Abstract
Myxobacteria represent an under-investigated source for biologically active natural products featuring intriguing structural moieties with potential applications, e.g., in the pharmaceutical industry. Sorangiadenosine and the here-discovered 2-hydroxysorangiadenosine are myxobacterial sesquiterpene–nucleosides with an unusual structural moiety, a bicyclic eudesmane-type sesquiterpene. As the biosynthesis of these rare terpene–nucleoside hybrid natural products remains elusive, we investigated secondary metabolomes and genomes of several 2-hydroxysorangiadenosine-producing myxobacteria. We report the isolation and full structure elucidation of 2-hydroxysorangiadenosine and its cytotoxic and antibiotic activities and propose a biosynthetic pathway in the myxobacterium Vitiosangium cumulatum MCy10943T.
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Ariantari NP, Ancheeva E, Frank M, Stuhldreier F, Meier D, Gröner Y, Reimche I, Teusch N, Wesselborg S, Müller WEG, Kalscheuer R, Liu Z, Proksch P. Didymellanosine, a new decahydrofluorene analogue, and ascolactone C from Didymella sp. IEA-3B.1, an endophyte of Terminalia catappa. RSC Adv 2020; 10:7232-7240. [PMID: 35493894 PMCID: PMC9049863 DOI: 10.1039/c9ra10685e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Accepted: 02/11/2020] [Indexed: 01/13/2023] Open
Abstract
Didymellanosine (1), the first analogue of the decahydrofluorene-class of natural products bearing a 13-membered macrocyclic alkaloid conjugated with adenosine, and a new benzolactone derivative, ascolactone C (4) along with eight known compounds (2, 3, 5–10), were isolated from a solid rice fermentation of the endophytic fungus Didymella sp. IEA-3B.1 derived from the host plant Terminalia catappa. In addition, ascochitamine (11) was obtained when (NH4)2SO4 was added to rice medium and is reported here for the first time as a natural product. Didymellanosine (1) displayed strong activity against the murine lymphoma cell line L5178Y, Burkitt's lymphoma B cells (Ramos) and adult lymphoblastic leukemia T cells (Jurkat J16), with IC50 values of 2.0, 3.3 and 4.4 µM, respectively. When subjected to a NFκB inhibition assay, didymellanosine (1) moderately blocked NFκB activation in the triple-negative breast cancer cell line MDA-MB 231. In an antimicrobial assay, ascomylactam C (3) was the most active compound when tested against a panel of Gram-positive bacteria including drug-resistant strains with MICs of 3.1–6.3 µM, while 1 revealed weaker activity. Interestingly, both compounds were also found active against Gram-negative Acinetobacter baumannii with MICs of 3.1 µM, in the presence of a sublethal concentration (0.1 µM) of colistin. An unusual decahydrofluorene-class alkaloid from Didymella sp. exhibited NFκB inhibitory and antimicrobial activities.![]()
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23
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Banuelos-Sanchez G, Franco-Montalban F, Tamayo JA. NMR studies of pyrimidinic nucleosides derived from 2,3-dideoxy-d-ribose with inhibitory activity on LINE-1 mobility. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2020; 58:118-125. [PMID: 31691341 DOI: 10.1002/mrc.4942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Revised: 09/17/2019] [Accepted: 09/17/2019] [Indexed: 06/10/2023]
Affiliation(s)
- Guillermo Banuelos-Sanchez
- Department of Medicinal and Organic Chemistry, Faculty of Pharmacy, University of Granada, Granada, Spain
| | - Francisco Franco-Montalban
- Department of Medicinal and Organic Chemistry, Faculty of Pharmacy, University of Granada, Granada, Spain
| | - Juan A Tamayo
- Department of Medicinal and Organic Chemistry, Faculty of Pharmacy, University of Granada, Granada, Spain
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24
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Anh NQ, Yen TT, Hang NT, Anh DH, Viet PH, Van Doan V, Van Kiem P. 1 H-Indole-3-acetonitrile glycoside, phenolic and other compounds from Stixis suaveolens. VIETNAM JOURNAL OF CHEMISTRY 2019. [DOI: 10.1002/vjch.201900063] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Ngo Quoc Anh
- Institute of Chemistry; Vietnam Academy of Science and Technology (VAST); 18 Hoang Quoc Viet, Cau Giay; Hanoi 100000 Viet Nam
| | - Tran Thi Yen
- Institute of Chemistry; Vietnam Academy of Science and Technology (VAST); 18 Hoang Quoc Viet, Cau Giay; Hanoi 100000 Viet Nam
| | - Nguyen Thuy Hang
- Institute of Chemistry; Vietnam Academy of Science and Technology (VAST); 18 Hoang Quoc Viet, Cau Giay; Hanoi 100000 Viet Nam
| | - Duong Hong Anh
- Centre for Environmental Technology and Sustainable Development (CETASD); Hanoi University of Science, Vietnam National University (VNU); Hanoi 100000 Viet Nam
| | - Pham Hung Viet
- Centre for Environmental Technology and Sustainable Development (CETASD); Hanoi University of Science, Vietnam National University (VNU); Hanoi 100000 Viet Nam
| | - Vu Van Doan
- Institute of Marine Biochemistry; VAST; 18 Hoang Quoc Viet, Cau Giay; Hanoi 100000 Viet Nam
| | - Phan Van Kiem
- Institute of Marine Biochemistry; VAST; 18 Hoang Quoc Viet, Cau Giay; Hanoi 100000 Viet Nam
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Zhang XQ, Shi J, Feng SX, Xue L, Tian LP. Two new phenolic glycosides from the seeds of Citrullus lanatus. Nat Prod Res 2019; 34:398-404. [PMID: 30602316 DOI: 10.1080/14786419.2018.1536131] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Two new phenolic glycosides, named lanatusosides C (1) and D (2), together with four known compounds (3-6), were isolated from the seeds of Citrullus lanatus. Among them, compounds 3 and 4 were isolated from Cucurbitaceae for the first time, and compound 5 was reported from this plant for the first time. Their structures were elucidated by means of extensive spectral analysis, including HR-ESI-MS, 1H and 13C NMR techniques. The isolated new compounds were evaluated for cytotoxic activity against HepG2 cell line, of which compound 1 demonstrated weak cytotoxicity against the tested cell line.
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Affiliation(s)
- Xiao-Qian Zhang
- Key Laboratory of Xinjiang Phytomedicine Resource and Utilization for Ministry of Education, School of Pharmacy, Shihezi University, Shihezi, China
| | - Jing Shi
- Key Laboratory of Xinjiang Phytomedicine Resource and Utilization for Ministry of Education, School of Pharmacy, Shihezi University, Shihezi, China
| | - Shi-Xiu Feng
- Shenzhen Fairy Lake Botanical Garden of Chinese Academy of Sciences, Shenzhen, China
| | - Lin Xue
- Shihezi Vegetable Research Institute, Shihezi, China
| | - Li-Ping Tian
- Key Laboratory of Xinjiang Phytomedicine Resource and Utilization for Ministry of Education, School of Pharmacy, Shihezi University, Shihezi, China
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26
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Daniel JFDS, Scalco AV, de Souza RM, Ocampos FMM, Barison A, Alves LFA, Neves PMOJ. Susceptibly of Alphitobius diaperinus to Beauveria bassiana extracts. Nat Prod Res 2018; 33:3033-3036. [PMID: 30580620 DOI: 10.1080/14786419.2018.1514396] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Alphitobius diaperinus is an important pathogen with worldwide distribution that causes severe economic loss of efficiency in broilers. This study evaluates the potential of organic extracts of two strains entomopathogenic fungus Beauveria bassiana (CG71 and UNI40) as a biocontrol agent on A. diaperinus and promotes the phytochemical investigation. The effective percentages of mortalities were 95.97% (UNI40 methanolic extract), 69.23, 64.64, and 50.39% (CG 71 methanolic, ethyl acetate and butanol extracts). However, there was a decrease in the lesser mealworms susceptibility in relation to the use of insecticides and extracts. The metabolites 5-hydroxymethyl-2-furanoic acid, dipicolinic acid and monomethyl dipicolinate were isolated from ethyl acetate extract, and β-adenosine of butanolic extract of B. bassiana CG 71. In addition, the cyclodepsipeptides were identified in methanolic extracts of the two strains. The insecticide activity results indicated that the B. bassiana extracts are an alternative to A. diaperinus control.
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Affiliation(s)
| | - Adriano Vinícius Scalco
- a Department of Chemistry, Federal Technological University of Paraná , Londrina , Paraná , Brazil
| | - Roberto Molina de Souza
- b Department of Mathematics, Federal Technological University of Paraná , Cornélio Procópio , Paraná , Brazil
| | | | - Andersson Barison
- c Department of Chemistry, Federal University of Paraná , Curitiba , Paraná , Brazil
| | - Luis Francisco Angeli Alves
- d Center for Biological and Health Sciences, State University of Western Paraná , Cascavel , Paraná , Brazil
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27
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Thanh NV, Thao NP, Phong NV, Cuong NX, Nam NH, Minh CV. A new [7.7]paracyclophane from Vietnamese marine snail Planaxis sulcatus (Born, 1780). Nat Prod Res 2018; 34:261-268. [PMID: 30580613 DOI: 10.1080/14786419.2018.1528586] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
A new [7.7]paracyclophane (1), together with eight known compounds (2-9), were isolated from a MeOH extract of the sea snail Planaxis sulcatus (Born, 1780). Their structures were elucidated by HR-ESI-MS and NMR techniques as well as comparison with those reported in literatures. The absolute configuration of metabolite 1 was determined using ECD spectroscopy. Among nine compounds, 1 exhibited significant cytotoxicity toward all eight cancer cells tested with IC50 values between 1.81 and 3.80 µg/mL.[Figure: see text].
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Affiliation(s)
- Nguyen Van Thanh
- Institute of Marine Biochemistry (IMBC), Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Nguyen Phuong Thao
- Institute of Marine Biochemistry (IMBC), Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Nguyen Viet Phong
- Institute of Marine Biochemistry (IMBC), Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Nguyen Xuan Cuong
- Institute of Marine Biochemistry (IMBC), Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Nguyen Hoai Nam
- Institute of Marine Biochemistry (IMBC), Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Chau Van Minh
- Institute of Marine Biochemistry (IMBC), Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
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28
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Yin C, Jin L, Sun F, Xu X, Shao M, Zhang Y. Phytotoxic and Antifungal Metabolites from Curvularia crepinii QTYC-1 Isolated from the Gut of Pantala flavescens. Molecules 2018; 23:molecules23040951. [PMID: 29671780 PMCID: PMC6017354 DOI: 10.3390/molecules23040951] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Revised: 04/11/2018] [Accepted: 04/13/2018] [Indexed: 01/13/2023] Open
Abstract
Four metabolites (1–4), including a new macrolide, O-demethylated-zeaenol (2), and three known compounds, zeaenol (1), adenosine (3), and ergosta-5,7,22-trien-3b-ol (4) were isolated and purified from Curvularia crepinii QTYC-1, a fungus residing in the gut of Pantala flavescens. The structures of isolated compounds were identified on the basis of extensive spectroscopic analysis and by comparison of the corresponding data with those reported in the literature previously. The new compound 2 showed good phytotoxic activity against Echinochloa crusgalli with an IC50 value of less than 5 µg/mL, which was comparable to that of positive 2,4-dichlorophenoxyacetic acid (2,4-D). Compound 1 exhibited moderate herbicidal activity against E. crusgalli with an IC50 value of 28.8 μg/mL. Furthermore, the new metabolite 2 was found to possess moderate antifungal activity against Valsa mali at the concentration of 100 µg/mL, with the inhibition rate of 50%. These results suggest that the new macrolide 2 and the known compound 1 have potential to be used as biocontrol agents in agriculture.
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Affiliation(s)
- Caiping Yin
- School of Life Sciences, Anhui Agricultural University, Hefei 230036, China.
- College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua 321004, China.
| | - Liping Jin
- College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua 321004, China.
| | - Feifei Sun
- College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua 321004, China.
| | - Xiao Xu
- College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua 321004, China.
| | - Mingwei Shao
- College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua 321004, China.
| | - Yinglao Zhang
- School of Life Sciences, Anhui Agricultural University, Hefei 230036, China.
- College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua 321004, China.
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29
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Selective Acetylation of Small Biomolecules and Their Derivatives Catalyzed by Er(OTf)3. Catalysts 2017. [DOI: 10.3390/catal7090269] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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30
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Adpressa DA, Stalheim KJ, Proteau PJ, Loesgen S. Unexpected Biotransformation of the HDAC Inhibitor Vorinostat Yields Aniline-Containing Fungal Metabolites. ACS Chem Biol 2017; 12:1842-1847. [PMID: 28530797 DOI: 10.1021/acschembio.7b00268] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The diversity of genetically encoded small molecules produced by filamentous fungi remains largely unexplored, which makes these fungi an attractive source for the discovery of new compounds. However, accessing their full chemical repertoire under common laboratory culture conditions is a challenge. Epigenetic manipulation of gene expression has become a well-established tool for overcoming this obstacle. Here, we report that perturbation of the endophytic ascomycete Chalara sp. 6661, producer of the isofusidienol class of antibiotics, with the HDAC inhibitor vorinostat resulted in the production of four new modified xanthones. The structures of chalanilines A (1) and B (2) and adenosine-coupled xanthones A (3) and B (4) were determined by extensive NMR spectroscopic analyses, and the bioactivities of 1-4 were tested in antibiotic and cytotoxicity assays. Incorporation studies with deuterium-labeled vorinostat indicate that the aniline moiety in chalalanine A is derived from vorinostat itself. Our study shows that Chalara sp. is able to metabolize the HDAC inhibitor vorinostat to release aniline. This is a rare report of fungal biotransformation of the popular epigenetic modifier vorinostat into aniline-containing polyketides.
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Affiliation(s)
- Donovon A. Adpressa
- Department
of Chemistry, College of Science, and ‡ Department of Pharmaceutical Sciences,
College of Pharmacy, Oregon State University, Corvallis, Oregon 97331, United States
| | - Kayla J. Stalheim
- Department
of Chemistry, College of Science, and ‡ Department of Pharmaceutical Sciences,
College of Pharmacy, Oregon State University, Corvallis, Oregon 97331, United States
| | - Philip J. Proteau
- Department
of Chemistry, College of Science, and ‡ Department of Pharmaceutical Sciences,
College of Pharmacy, Oregon State University, Corvallis, Oregon 97331, United States
| | - Sandra Loesgen
- Department
of Chemistry, College of Science, and ‡ Department of Pharmaceutical Sciences,
College of Pharmacy, Oregon State University, Corvallis, Oregon 97331, United States
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31
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Zhang W, Turney T, Surjancev I, Serianni AS. Enzymatic synthesis of ribo- and 2'-deoxyribonucleosides from glycofuranosyl phosphates: An approach to facilitate isotopic labeling. Carbohydr Res 2017; 449:125-133. [PMID: 28780317 DOI: 10.1016/j.carres.2017.07.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Revised: 07/13/2017] [Accepted: 07/14/2017] [Indexed: 01/25/2023]
Abstract
Milligram quantities of α-D-ribofuranosyl 1-phosphate (sodium salt) (αR1P) were prepared by the phosphorolysis of inosine, catalyzed by purine nucleoside phosphorylase (PNPase). The αR1P was isolated by chromatography in >95% purity and characterized by 1H and 13C NMR spectroscopy. Aqueous solutions of αR1P were stable at pH 6.4 and 4 °C for several months. The isolated αR1P was N-glycosylated with different nitrogen bases (adenine, guanine and uracil) using PNPase or uridine phosphorylase (UPase) to give the corresponding ribonucleosides in high yield based on the glycosyl phosphate. This methodology is attractive for the preparation of stable isotopically labeled ribo- and 2'-deoxyribonucleosides because of the ease of product purification and convenient use and recycling of nitrogen bases. The approach eliminates the need for separate reactions to prepare individual furanose-labeled ribonucleosides, since only one ribonucleoside (inosine) needs to be labeled, if desired, in the furanose ring, the latter achieved by a high-yield chemical N-glycosylation. 2'-Deoxyribonucleosides were prepared from 2'-deoxyinosine using the same methodology with minor modifications.
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Affiliation(s)
- Wenhui Zhang
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556-5670 USA.
| | - Toby Turney
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556-5670 USA
| | - Ivana Surjancev
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556-5670 USA
| | - Anthony S Serianni
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556-5670 USA.
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32
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Mai NT, Cuc NT, Anh HLT, Nhiem NX, Tai BH, Minh CV, Quang TH, Kim KW, Kim YC, Oh H, Kiem PV. Steroidal saponins from Datura metel. Steroids 2017; 121:1-9. [PMID: 28237768 DOI: 10.1016/j.steroids.2017.02.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Revised: 02/06/2017] [Accepted: 02/14/2017] [Indexed: 10/20/2022]
Abstract
Datura metel L. (Solanaceae) is an annual herb that has been widely used in the traditional medicine for the treatment of coughs, bronchial asthma, and rheumatism. Chemical investigation of an acidic methanol extract of the whole plants of D. metel resulted in the isolation of five new steroidal saponins (1-3, 5, and 6), named metelosides A-E, and four known compounds (4, 7-9). Their structures were elucidated by extensive spectroscopic methods, including 1D and 2D NMR and MS spectra. The structures of metelosides A and B were found to be unusual among the reported spirostane-type steroidal saponins due to the presence of the acetamide groups in the molecules. Compounds 2, 4, 5, and 6 were shown to be cytotoxic against three cancer cell lines, including HepG2, MCF-7, and SK-Mel-2 cells. Furthermore, compounds 3, 4, and 7 exhibited modest anti-inflammatory effects through inhibition of NO production in LPS-stimulated BV cells.
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Affiliation(s)
- Nguyen Thi Mai
- University of Transport and Communications, 3 Cau Giay, Dong Da, Hanoi, Viet Nam
| | - Nguyen Thi Cuc
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam
| | - Hoang Le Tuan Anh
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam
| | - Nguyen Xuan Nhiem
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam
| | - Bui Huu Tai
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam
| | - Chau Van Minh
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam
| | - Tran Hong Quang
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam
| | - Kwan Woo Kim
- College of Pharmacy, Wonkwang University, Iksan 570-749, Republic of Korea
| | - Youn-Chul Kim
- College of Pharmacy, Wonkwang University, Iksan 570-749, Republic of Korea
| | - Hyuncheol Oh
- College of Pharmacy, Wonkwang University, Iksan 570-749, Republic of Korea
| | - Phan Van Kiem
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam.
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Suh W, Nam G, Yang WS, Sung GH, Shim SH, Cho JY. Chemical Constituents Identified from Fruit Body of Cordyceps bassiana and Their Anti-Inflammatory Activity. Biomol Ther (Seoul) 2017; 25:165-170. [PMID: 27530115 PMCID: PMC5340541 DOI: 10.4062/biomolther.2016.063] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2016] [Revised: 05/05/2016] [Accepted: 06/20/2016] [Indexed: 11/05/2022] Open
Abstract
Cordyceps bassiana is one of Cordyceps species with anti-oxidative, anti-cancer, anti-inflammatory, anti-diabetic, anti-obesity, anti-angiogenic, and anti-nociceptive activities. This mushroom has recently demonstrated to have an ability to reduce 2,4-dinitrofluorobenzene-induced atopic dermatitis symptoms in NC/Nga mice. In this study, we further examined phytochemical properties of this mushroom by column chromatography and HPLC analysis. By chromatographic separation and spectroscopic analysis, 8 compounds, such as 1,9-dimethylguanine (1), adenosine (2), uridine (3), nicotinamide (4), 3-methyluracil (5), 1,7-dimethylxanthine (6), nudifloric acid (7), and mannitol (8) were identified from 6 different fractions and 4 more subfractions. Through evaluation of their anti-inflammatory activities using reporter gene assay and mRNA analysis, compound 1 was found to block luciferase activity induced by NF-κB and AP-1, suppress the mRNA levels of cyclooxygenase (COX)-2 and tumor necrosis factor (TNF)-α. Therefore, our data strongly suggests that compound 1 acts as one of major principles in Cordyceps bassiana with anti-inflammatory and anti-atopic dermatitis activities.
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Affiliation(s)
- Wonse Suh
- School of Biotechnology, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Gyeongsug Nam
- Department of Genetic Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Woo Seok Yang
- Department of Genetic Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Gi-Ho Sung
- Institute for Bio-Medical Convergence, International St. Mary's Hospital and College of Medicine, Catholic Kwandong University, Incheon 22711, Republic of Korea
| | - Sang Hee Shim
- College of Pharmacy, Duksung Women's University, Seoul 01369, Republic of Korea
| | - Jae Youl Cho
- Department of Genetic Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
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Hierarchical identification of bioactive components in a medicinal herb by preparative high-performance liquid chromatography and selective knock-out strategy. J Pharm Biomed Anal 2017; 135:206-216. [DOI: 10.1016/j.jpba.2016.12.027] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Revised: 12/17/2016] [Accepted: 12/18/2016] [Indexed: 11/21/2022]
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35
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Kırmızıbekmez H, Kúsz N, Karaca N, Demirci F, Hohmann J. Secondary Metabolites from the Leaves of Digitalis viridiflora. Nat Prod Commun 2017. [DOI: 10.1177/1934578x1701200117] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
A new phenylethanoid glycoside, named digiviridifloroside (1), was isolated from the leaves of Digitalis viridiflora Lindley along with a known phenylethanoid glycoside calceolarioside A (2), two flavonoid glycosides, scutellarein 7- O-β-D-glucopyranoside (3) and hispidulin 7- O-β-D-glucopyranoside (4), two cleroindicins, cleroindicins B (5) and F (6), a nucleoside, adenosine (7), as well as a mixture of β-glucopyranosyl-(1→6)-4- O-caffeoyl-α/β -glucopyranose and 3,4-dihydroxyphenylethanol. The structure of the new compound was established as 3,4-dihydroxy-β-phenylethoxy-6- O-( E)-feruloyl-glucopyranosyl-(1→6)-4- O-( E)-caffeoyl-β-glucopyranoside (1) based on extensive 1D- and 2D-NMR spectroscopy, as well as HR-ESI-MS. Digiviridifloroside represents a rare type of phenylethanoid glycoside which bears two aromatic acyl units in its structure. In addition to phytochemical studies, the isolates were evaluated for their in vitro antimicrobial activities against three pathogenic bacteria and three yeast strains using a microdilution method. Among the tested compounds, 5 exhibited moderate antibacterial activity against Bacillus cereus NRRLB 3711 with a MIC value of 25 μg/mL, whereas compounds 5 and 6 showed relatively high anticandidal activity against Candida strains with MIC values down to 12.5 μg/mL, in comparison to the standard antimicrobial compounds.
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Affiliation(s)
- Hasan Kırmızıbekmez
- Department of Pharmacognosy, Faculty of Pharmacy, Yeditepe University, TR-34755, Kayisdagi, İstanbul, Turkey
| | - Norbert Kúsz
- Institute of Pharmacognosy, Szeged University, Eötvös u 6, H-6720 Szeged, Hungary
| | - Nursenem Karaca
- Graduate School of Health Sciences, Anadolu University, 26470, Eskişehir, Turkey
| | - Fatih Demirci
- Department of Pharmacognosy, Faculty of Pharmacy, Anadolu University, 26470, Eskişehir, Turkey
- Faculty of Health Sciences, Anadolu University, 26470, Eskişehir, Turkey
| | - Judit Hohmann
- Institute of Pharmacognosy, Szeged University, Eötvös u 6, H-6720 Szeged, Hungary
- Interdisciplinary Centre of Natural Products, University of Szeged, Eötvös u. 6., H-6720 Szeged, Hungary
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36
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Kesel AJ, Day CW, Montero CM, Schinazi RF. A new oxygen modification cyclooctaoxygen binds to nucleic acids as sodium crown complex. Biochim Biophys Acta Gen Subj 2016; 1860:785-94. [PMID: 26825775 PMCID: PMC4780752 DOI: 10.1016/j.bbagen.2016.01.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Accepted: 01/19/2016] [Indexed: 11/28/2022]
Abstract
BACKGROUND Oxygen exists in two gaseous and six solid allotropic modifications. An additional allotropic modification of oxygen, the cyclooctaoxygen, was predicted to exist in 1990. METHODS Cyclooctaoxygen sodium was synthesized in vitro from atmospheric oxygen, or catalase effect-generated oxygen, under catalysis of cytosine nucleosides and either ninhydrin or eukaryotic low-molecular weight RNA. Thin-layer chromatographic mobility shift assays were applied on specific nucleic acids and the cyclooctaoxygen sodium complex. RESULTS We report the first synthesis and characterization of cyclooctaoxygen as its sodium crown complex, isolated in the form of three cytosine nucleoside hydrochloride complexes. The cationic cyclooctaoxygen sodium complex is shown to bind to nucleic acids (RNA and DNA), to associate with single-stranded DNA and spermine phosphate, and to be essentially non-toxic to cultured mammalian cells at 0.1-1.0mM concentration. CONCLUSIONS We postulate that cyclooctaoxygen is formed in most eukaryotic cells in vivo from dihydrogen peroxide in a catalase reaction catalyzed by cytidine and RNA. A molecular biological model is deduced for a first epigenetic shell of eukaryotic in vivo DNA. This model incorporates an epigenetic explanation for the interactions of the essential micronutrient selenium (as selenite) with eukaryotic in vivo DNA. GENERAL SIGNIFICANCE Since the sperminium phosphate/cyclooctaoxygen sodium complex is calculated to cover the active regions (2.6%) of bovine lymphocyte interphase genome, and 12.4% of murine enterocyte mitotic chromatin, we propose that the sperminium phosphate/cyclooctaoxygen sodium complex coverage of nucleic acids is essential to eukaryotic gene regulation and promoted proto-eukaryotic evolution.
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Affiliation(s)
- Andreas J Kesel
- Chammünsterstr. 47, D-81827 München, Bayern/Bavaria, Germany.
| | - Craig W Day
- Institute for Antiviral Research, Department of Animal, Dairy and Veterinary Science, Utah State University, Logan, UT 84322, USA
| | - Catherine M Montero
- Center for AIDS Research, Laboratory of Biochemical Pharmacology, Department of Pediatrics, Emory University School of Medicine, Atlanta, GA 30322, USA; Veterans Affairs Medical Center, Decatur, GA 30033, USA
| | - Raymond F Schinazi
- Center for AIDS Research, Laboratory of Biochemical Pharmacology, Department of Pediatrics, Emory University School of Medicine, Atlanta, GA 30322, USA; Veterans Affairs Medical Center, Decatur, GA 30033, USA
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γ-Lactam alkaloids from the flower buds of daylily. J Nat Med 2016; 70:376-83. [DOI: 10.1007/s11418-015-0963-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Accepted: 12/29/2015] [Indexed: 11/30/2022]
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38
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Guo W, Jin M, Miao Z, Qu K, Liu X, Zhang P, Qin H, Zhu H, Wang Y. Structure Elucidation of the Metabolites of 2', 3', 5'-Tri-O-Acetyl-N6-(3-Hydroxyphenyl) Adenosine in Rat Urine by HPLC-DAD, ESI-MS and Off-Line Microprobe NMR. PLoS One 2015; 10:e0127583. [PMID: 26029929 PMCID: PMC4451981 DOI: 10.1371/journal.pone.0127583] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Accepted: 04/16/2015] [Indexed: 11/19/2022] Open
Abstract
2', 3', 5'-Tri-O-acetyl-N6-(3-hydroxyphenyl) adenosine (also known as WS070117) is a new adenosine analog that displays anti-hyperlipidemic activity both in vitro and in vivo experiments as shown in many preliminary studies. Due to its new structure, little is known about the metabolism of WS070117. Hence, the in vivo metabolites of WS070117 in rat urine following oral administration were investigated. Identification of the metabolites was conducted using the combination of high-performance liquid chromatography (HPLC) coupled with diode array detector (DAD), ion trap electrospray ionization-mass spectrometry (ESI-MS), and off-line microprobe nuclear magnetic resonance (NMR) measurements. Seven metabolites were obtained as pure compounds at the sub-milligram to milligram levels. Results of structure elucidation unambiguously revealed that the phase I metabolite, N6-(3-hydroxyphenyl) adenosine (M8), was a hydrolysate of WS070117 by hydrolysis on the three ester groups. N6-(3-hydr-oxyphenyl) adenine (M7), also one of the phase I metabolites, was the derivative of M8 by the loss of ribofuranose. In addition to two phase I metabolites, there were five phase II metabolites of WS070117 found in rat urine. 8-hydroxy-N6-(3-hydroxy-phenyl) adenosine (M6) was the product of M7 by hydrolysis at position 8. The other four were elucidated to be N6-(3-O-β-D-glucuronyphenyl) adenine (M2), N8-hydroxy-N6-(3-O-sulfophenyl) adenine (M3), N6-(3-O-β-D-glucuronyphenyl) adenosine (M4), and N6-(3-O- sulfophenyl) adenosine (M5). Phase II metabolic pathways were proven to consist of hydroxylation, glucuronidation and sulfation. This study provides new and valuable information on the metabolism of WS070117, and also demonstrates the HPLC/MS/off-line microprobe NMR approach as a robust means for rapid identification of metabolites.
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Affiliation(s)
- Wei Guo
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines & Ministry of Health Key Laboratory of Biosynthesis of Natural Products, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Mengxia Jin
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines & Ministry of Health Key Laboratory of Biosynthesis of Natural Products, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Zhaoxia Miao
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines & Ministry of Health Key Laboratory of Biosynthesis of Natural Products, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Kai Qu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines & Ministry of Health Key Laboratory of Biosynthesis of Natural Products, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Beijing Key Laboratory of New Drug Mechanisms and Pharmacological Evaluation Study, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xia Liu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines & Ministry of Health Key Laboratory of Biosynthesis of Natural Products, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Peicheng Zhang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines & Ministry of Health Key Laboratory of Biosynthesis of Natural Products, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Hailin Qin
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines & Ministry of Health Key Laboratory of Biosynthesis of Natural Products, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Haibo Zhu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines & Ministry of Health Key Laboratory of Biosynthesis of Natural Products, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Beijing Key Laboratory of New Drug Mechanisms and Pharmacological Evaluation Study, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yinghong Wang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines & Ministry of Health Key Laboratory of Biosynthesis of Natural Products, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Wahidullah S, Naik B, Al-Fadhli AA. Chemotaxonomic study of the demosponge Cinachyrella cavernosa (Lamarck). BIOCHEM SYST ECOL 2015. [DOI: 10.1016/j.bse.2014.11.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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40
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Liu GJ, Zhang XT, Xing GW. A general method for N-glycosylation of nucleobases promoted by (p-Tol)2SO/Tf2O with thioglycoside as donor. Chem Commun (Camb) 2015; 51:12803-6. [DOI: 10.1039/c5cc03617h] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
35 nucleosides were synthesized by coupling thioglycosides with pyrimidines and purines under the preactivation of (p-Tol)2SO/Tf2O in high yields and with β-stereoselectivities.
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Affiliation(s)
- Guang-jian Liu
- Department of Chemistry
- Beijing Normal University
- Beijing 100875
- China
| | - Xiao-tai Zhang
- Department of Chemistry
- Beijing Normal University
- Beijing 100875
- China
| | - Guo-wen Xing
- Department of Chemistry
- Beijing Normal University
- Beijing 100875
- China
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Waterman C, Calcul L, Beau J, Ma WS, Lebar MD, von Salm JL, Harter C, Mutka T, Morton LC, Maignan P, Barisic B, van Olphen A, Kyle DE, Vrijmoed L, Pang KL, Pearce CJ, Baker BJ. Miniaturized Cultivation of Microbiota for Antimalarial Drug Discovery. Med Res Rev 2014; 36:144-68. [PMID: 25545963 DOI: 10.1002/med.21335] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The ongoing search for effective antiplasmodial agents remains essential in the fight against malaria worldwide. Emerging parasitic drug resistance places an urgent need to explore chemotherapies with novel structures and mechanisms of action. Natural products have historically provided effective antimalarial drug scaffolds. In an effort to search nature's chemical potential for antiplasmodial agents, unconventionally sourced organisms coupled with innovative cultivation techniques were utilized. Approximately 60,000 niche microbes from various habitats (slow-growing terrestrial fungi, Antarctic microbes, and mangrove endophytes) were cultivated on a small-scale, extracted, and used in high-throughput screening to determine antimalarial activity. About 1% of crude extracts were considered active and 6% partially active (≥ 67% inhibition at 5 and 50 μg/mL, respectively). Active extracts (685) were cultivated on a large-scale, fractionated, and screened for both antimalarial activity and cytotoxicity. High interest fractions (397) with an IC50 < 1.11 μg/mL were identified and subjected to chromatographic separation for compound characterization and dereplication. Identifying active compounds with nanomolar antimalarial activity coupled with a selectivity index tenfold higher was accomplished with two of the 52 compounds isolated. This microscale, high-throughput screening project for antiplasmodial agents is discussed in the context of current natural product drug discovery efforts.
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Affiliation(s)
- Carrie Waterman
- Department of Chemistry, University of South Florida, Tampa, Florida, 33620, USA
| | - Laurent Calcul
- Department of Chemistry, University of South Florida, Tampa, Florida, 33620, USA
| | - Jeremy Beau
- Department of Chemistry, University of South Florida, Tampa, Florida, 33620, USA
| | - Wai Sheung Ma
- Department of Chemistry, University of South Florida, Tampa, Florida, 33620, USA
| | - Matthew D Lebar
- Department of Chemistry, University of South Florida, Tampa, Florida, 33620, USA
| | | | - Charles Harter
- Department of Chemistry, University of South Florida, Tampa, Florida, 33620, USA
| | - Tina Mutka
- Department of Global Health, University of South Florida, Tampa, Florida, 33620, USA
| | - Lindsay C Morton
- Department of Global Health, University of South Florida, Tampa, Florida, 33620, USA
| | - Patrick Maignan
- Department of Global Health, University of South Florida, Tampa, Florida, 33620, USA
| | - Betty Barisic
- Department of Global Health, University of South Florida, Tampa, Florida, 33620, USA
| | - Alberto van Olphen
- Department of Global Health, University of South Florida, Tampa, Florida, 33620, USA
| | - Dennis E Kyle
- Department of Global Health, University of South Florida, Tampa, Florida, 33620, USA
| | - Lilian Vrijmoed
- Department of Biology and Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong
| | - Ka-Lai Pang
- Institute of Marine Biology and Center of Excellence for the Oceans, National Taiwan Ocean University, Keelung, 20224, Taiwan
| | | | - Bill J Baker
- Department of Chemistry, University of South Florida, Tampa, Florida, 33620, USA.,Center for Drug Discovery and Innovation, University of South Florida, Tampa, Florida, 36612, USA
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Crofts TS, Hazra AB, Tran JLA, Sokolovskaya OM, Osadchiy V, Ad O, Pelton J, Bauer S, Taga ME. Regiospecific Formation of Cobamide Isomers Is Directed by CobT. Biochemistry 2014; 53:7805-15. [DOI: 10.1021/bi501147d] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Terence S. Crofts
- Department of Plant and Microbial Biology, ∥Department of Chemistry, ⊥QB3 Institute, and #Energy Biosciences Institute, University of California, Berkeley, United States
| | - Amrita B. Hazra
- Department of Plant and Microbial Biology, ∥Department of Chemistry, ⊥QB3 Institute, and #Energy Biosciences Institute, University of California, Berkeley, United States
| | - Jennifer LA Tran
- Department of Plant and Microbial Biology, ∥Department of Chemistry, ⊥QB3 Institute, and #Energy Biosciences Institute, University of California, Berkeley, United States
| | - Olga M. Sokolovskaya
- Department of Plant and Microbial Biology, ∥Department of Chemistry, ⊥QB3 Institute, and #Energy Biosciences Institute, University of California, Berkeley, United States
| | - Vadim Osadchiy
- Department of Plant and Microbial Biology, ∥Department of Chemistry, ⊥QB3 Institute, and #Energy Biosciences Institute, University of California, Berkeley, United States
| | - Omer Ad
- Department of Plant and Microbial Biology, ∥Department of Chemistry, ⊥QB3 Institute, and #Energy Biosciences Institute, University of California, Berkeley, United States
| | - Jeffrey Pelton
- Department of Plant and Microbial Biology, ∥Department of Chemistry, ⊥QB3 Institute, and #Energy Biosciences Institute, University of California, Berkeley, United States
| | - Stefan Bauer
- Department of Plant and Microbial Biology, ∥Department of Chemistry, ⊥QB3 Institute, and #Energy Biosciences Institute, University of California, Berkeley, United States
| | - Michiko E. Taga
- Department of Plant and Microbial Biology, ∥Department of Chemistry, ⊥QB3 Institute, and #Energy Biosciences Institute, University of California, Berkeley, United States
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Nguyen TT, Tran HQ, Song SB, Kim YH. Anti-inflammatory and PPAR Transactivational Effects of Components from Ginkgo biloba Seeds. B KOREAN CHEM SOC 2014. [DOI: 10.5012/bkcs.2014.35.9.2843] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Zhang HX, Lunga PK, Li ZJ, Dai Q, Du ZZ. Flavonoids and stilbenoids from Derris eriocarpa. Fitoterapia 2014; 95:147-53. [PMID: 24685500 DOI: 10.1016/j.fitote.2014.03.015] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Revised: 03/14/2014] [Accepted: 03/22/2014] [Indexed: 10/25/2022]
Abstract
One new resveratrol analogue, 1-(3',4',5'-trimethoxyphenyl)-2-methoxy-2-(4″-methoxyphenyl)-ethane-1-ol (1), and two new prenylisoflavones, 4'-hydroxy-5,7-dimethoxy-6-(3-methyl-2-butenyl)-isoflavone (2), and derrubon 5-methyl ether (3), together with 17 known compounds including one new natural product, 5,7-dihydroxy-3-[4'-O-(3-methyl-2-butenyl)-phenyl]-isoflavone (4), were isolated from the stems of ethnomedicinal plant Derris eriocarpa How. (Leguminosae). Their structures were elucidated based on chemical evidence and spectroscopic techniques including two-dimensional NMR methods. All compounds are reported from this species for the first time. Antimicrobial activities of the new compounds were evaluated. Compound 2 exhibited good inhibitory activities against Candida guilliermondii, C. albicans and Microsporium gypseum with the minimal inhibitory concentration (MIC) values of 12.5 μg/ml.
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Affiliation(s)
- Hong-Xia Zhang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, PR China
| | - Paul-Keilah Lunga
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, PR China; Department of Biochemistry, Laboratory of Phytobiochemistry and Medicinal Plants Study, Faculty of Science, University of Yaoundé 1, P.O. Box 812, Yaoundé, Cameroon
| | - Zhi-Jian Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, PR China; School of Life Sciences, Yunnan University, Kunming 650091, PR China
| | - Qin Dai
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, PR China
| | - Zhi-Zhi Du
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, PR China.
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Singh P, Singh A, Kaur J, Holzer W. H-Bond activated glycosylation of nucleobases: implications for prebiotic nucleoside synthesis. RSC Adv 2014. [DOI: 10.1039/c3ra44776f] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Jafari S, Saeidnia S, Hajimehdipoor H, Ardekani MRS, Faramarzi MA, Hadjiakhoondi A, Khanavi M. Cytotoxic evaluation of Melia azedarach in comparison with, Azadirachta indica and its phytochemical investigation. ACTA ACUST UNITED AC 2013; 21:37. [PMID: 23679992 PMCID: PMC3664079 DOI: 10.1186/2008-2231-21-37] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2013] [Accepted: 05/11/2013] [Indexed: 11/10/2022]
Abstract
BACKGROUND Melia azedarach L. is an important medicinal plant that is used for variety of ailments in Iranian traditional medicine. Azadirachta indica A. Juss is its allied species and possesses similar properties and effects. The present study was undertaken to investigate anticancer activity of these M. azedarach in comparison with A. indica on cancer cell lines and also to evaluate their safety in humans by testing them on normal cell line. The study also aimed to determine the active components that are responsible for medicinal effects of M. azedarach in traditional usages. METHODS In this study, the cytotoxic activity of crude extracts from M. azedarach and A. indica leaves, pulps and seeds as well as three main fractions of their leaf extracts were assayed against HT-29, A-549, MCF-7 and HepG-2 and MDBK cell lines. MTT assay was used to evaluate their cytotoxic activities. Methanol leaf fraction of M. azedarach as the safest leaf fraction in terms of cytotoxicity was subjected for phytochemical study. RESULTS Results of the present study indicated that seed kernel extract of M. azedarach had the highest cytotoxic activity and selectivity to cancer cell lines (IC50 range of 8.18- 60.10 μg mL-1). In contrast to crude seed extract of A. indica, crude pulp and crude leaf extracts of this plant showed remarkably stronger anti-prolifrative activity (IC50 ranges of 83.45 - 212.16 μg mL-1 and 34.11- 95.51 μg mL-1 respectively) than those of M. azedarach (all IC50 values of both plants > 650 μg mL-1). The phytochemical analysis led to the isolation of four flavonol 3-O-glycosides including rutin, kaempferol-3-O-robinobioside, kaempferol-3-O-rutinoside and isoquercetin along with a purin nucleoside, β-adenosine. CONCLUSIONS The anti-prolifrative potentials of extracts from different parts of M. azedarach and A. indica were determined. By comparison, methanol leaf fraction of M. azedarach seems to be safer in terms of cytotoxicity. Our study shows that flavonols are abundant in the leaves of M. azedarach and these compounds seem to be responsible for many of medicinal effects exploited in the traditional uses.
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Affiliation(s)
- Samineh Jafari
- Department of Pharmacognosy, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran.
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Comprehensive analysis of Phyteuma orbiculare L., a wild Alpine food plant. Food Chem 2012; 136:595-603. [PMID: 23122102 DOI: 10.1016/j.foodchem.2012.08.018] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2012] [Revised: 08/08/2012] [Accepted: 08/10/2012] [Indexed: 11/22/2022]
Abstract
Plants which have been traditionally eaten by the alpine population may provide new opportunities for agricultural development in mountain regions. In this context we have investigated the chemical composition of Phyteuma orbiculare (Campanulaceae), a perennial herb whose leaves have been eaten as salad by rural populations in Valais (Switzerland). Extracts of different polarities were subjected to comprehensive metabolite profiling using a dereplication platform combining HPLC-PDA-MS, and offline NMR analysis. Twenty-three compounds, including various phenolic glycosides, a new dimeric phenylpropanoid glucoside, saponins, and fatty acids were identified online, or after targeted isolation. Selected phenolic constituents were quantitatively assessed by HPLC-PDA analysis. In addition, substances relevant for nutrition, such as β-carotene, fatty acids, ascorbic acid and minerals were quantified in leaves and flowers. The antioxidant capacity was determined with an ORAC assay, and total phenolic compounds were quantified. Finally, the phytochemical profile was compared to that of the related species P. spicatum, P. hemisphaericum and P. ovatum.
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Husni A, Jeon JS, Um BH, Han NS, Chung D. Tyrosinase inhibition by water and ethanol extracts of a far eastern sea cucumber, Stichopus japonicus. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2011; 91:1541-1547. [PMID: 21384380 DOI: 10.1002/jsfa.4335] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2010] [Revised: 12/11/2010] [Accepted: 01/13/2011] [Indexed: 05/30/2023]
Abstract
BACKGROUND Tyrosinase plays a key role in hyperpigmentaion and enzymatic browning. The present study was aimed at investigating the inhibitory effects of water and 70% aqueous ethanol extracts of Stichopus japonicus, a sea cucumber long consumed as a tonic food and traditional medicine, on the diphenolase activity of tyrosinase. RESULTS In the tyrosinase inhibition study, high-performance liquid chromatography completely separated L-3,4-dihydroxyphenylalanine and dopachrome from other compounds present in the extracts, and provided more reliable results than the commonly used spectrophotometry. The ethanol extract (IC(50)=0.49-0.61 mg mL(-1)) showed higher inhibitory activity than the water extract (IC(50)=1.80-1.99 mg mL(-1)). Enzyme inhibition by the extracts was reversible and of mixed type. For both extracts, the dissociation constants for binding to free enzyme were significantly smaller than those for binding to enzyme-substrate complex. Ethyl-α-D-glucopyranoside (IC(50)=0.19 mg mL(-1)), isolated for the first time from sea cucumber, and adenosine (IC(50)=0.13 mg mL(-1)), were identified as key tyrosinase inhibitors. CONCLUSION The sea cucumber extracts were demonstrated to possess considerable inhibitory potency against the diphenolase activity of tyrosinase, suggesting that the sea cucumber may be a good source of safe and effective tyrosinase inhibitors.
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Affiliation(s)
- Amir Husni
- Department of Marine Food Science and Technology, Medical and Bio-Materials Research Center, Gangneung-Wonju National University, Gangneung, Republic of Korea
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Casati S, Manzocchi A, Ottria R, Ciuffreda P. 1H, 13C and 15N NMR spectral assignments of adenosine derivatives with different amino substituents at C6-position. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2011; 49:279-283. [PMID: 21387403 DOI: 10.1002/mrc.2736] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2010] [Revised: 01/12/2011] [Accepted: 01/15/2011] [Indexed: 05/30/2023]
Abstract
The complete (1)H, (13)C and (15)N NMR signals assignment of adenosine derivatives differently substituted at C(6)-position was achieved using one- and two-dimensional experiments (gs-COSY, gs-NOESY, gs-HSQC and gs-HMBC).
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