1
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Bauri AK, Du Y, Brodie PJ, Foro S, Kingston DGI. Anti-Proliferative Acyl Phenols and Arylnonanoids from the Fruit Rind of Myristica malabarica Lam. Chem Biodivers 2022; 19:e202200343. [PMID: 36263966 DOI: 10.1002/cbdv.202200343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Accepted: 10/20/2022] [Indexed: 12/27/2022]
Abstract
Phytochemical investigation of the methanol extract of the fruit rind of Myristica malabarica led to the isolation of eight known compounds that were identified as malabaricones A-D, promalabaricones B and C, 1-(2,6-dihydroxyphenyl)tetradecan-1-one, and ericanone by comparison with literature spectroscopic data. The structures of malabaricones A-D, promalabaricone B, and 1-(2,6-dihydroxyphenyl)tetradecan-1-one were confirmed by X-ray crystallography. In vitro assay of the isolated phenols indicated that they exhibited moderate anti-proliferative activity against the A2780 human ovarian cancer cell. Compounds (1, 3, 5, 6 and 7) had the most potent activities, whereas the anti-proliferative activities of compounds 2 and 4 were less potent.
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Affiliation(s)
- Ajoy Kumar Bauri
- Bio-Organic Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 85, India
| | - Yongle Du
- Department of Chemistry, M/C 0212, Virginia Tech, Blacksburg, Virginia, 24061, USA
| | - Peggy Jane Brodie
- Department of Chemistry, M/C 0212, Virginia Tech, Blacksburg, Virginia, 24061, USA
| | - Sabine Foro
- Institute of Materials Science, Darmstadt University of Technology, Alarich-Weiss-Strasse 2, D-64287, Darmstadt, Germany
| | - David G I Kingston
- Department of Chemistry, M/C 0212, Virginia Tech, Blacksburg, Virginia, 24061, USA
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2
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Abstract
Natural products have made a crucial and unique contribution to human health, and this is especially true in the case of malaria, where the natural products quinine and artemisinin and their derivatives and analogues, have saved millions of lives. The need for new drugs to treat malaria is still urgent, since the most dangerous malaria parasite, Plasmodium falciparum, has become resistant to quinine and most of its derivatives and is becoming resistant to artemisinin and its derivatives. This volume begins with a short history of malaria and follows this with a summary of its biology. It then traces the fascinating history of the discovery of quinine for malaria treatment and then describes quinine's biosynthesis, its mechanism of action, and its clinical use, concluding with a discussion of synthetic antimalarial agents based on quinine's structure. The volume then covers the discovery of artemisinin and its development as the source of the most effective current antimalarial drug, including summaries of its synthesis and biosynthesis, its mechanism of action, and its clinical use and resistance. A short discussion of other clinically used antimalarial natural products leads to a detailed treatment of other natural products with significant antiplasmodial activity, classified by compound type. Although the search for new antimalarial natural products from Nature's combinatorial library is challenging, it is very likely to yield new antimalarial drugs. The chapter thus ends by identifying over ten natural products with development potential as clinical antimalarial agents.
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Affiliation(s)
- David G I Kingston
- Department of Chemistry and the Virginia Tech Center for Drug Discovery, Virginia Tech, Blacksburg, VA, 24061, USA.
| | - Maria Belen Cassera
- Department of Biochemistry and Molecular Biology, and Center for Tropical and Emerging Global Diseases (CTEGD), University of Georgia, Athens, GA, 30602, USA
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3
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Kingston DGI, Cassera MB. Correction to: Antimalarial Natural Products. Prog Chem Org Nat Prod 2022; 117:C1. [PMID: 35666333 DOI: 10.1007/978-3-030-89873-1_2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Affiliation(s)
- David G I Kingston
- Department of Chemistry and the Virginia Tech Center for Drug Discovery, Virginia Tech, Blacksburg, VA, 24061, USA.
| | - Maria Belen Cassera
- Department of Biochemistry and Molecular Biology, and Center for Tropical and Emerging Global Diseases (CTEGD), University of Georgia, Athens, GA, 30602, USA
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4
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Pearce KC, Fuentes RG, Calderon S, Marolikar R, Kingston DGI, Crawford TD. Structure Elucidation and Confirmation of Phloroglucinols from the Roots of Garcinia dauphinensis by Comparison of Experimental and Calculated ECD Spectra and Specific Rotations. J Nat Prod 2021; 84:1163-1174. [PMID: 33823109 DOI: 10.1021/acs.jnatprod.0c01208] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Eight phloroglucinols from Garcinia dauphinensis were recently reported to have good to moderate antiplasmodial and anticancer activities, consistent with other phloroglucinol derivatives isolated from natural sources. Chiroptical properties were previously calculated and compared to experimental data for compound 2 as a means to deduce its absolute configuration. Tentative assignments for the remaining compounds were also reported based on these data. In order to arrive at stereochemical assignments for phloroglucinols 1 and 3-8, ECD spectra and specific rotations were computed for all stereoisomers of each compound. Molecular orbital analyses were also carried out for the most energetically favorable conformers of each compound. Absolute configurations are reported for all eight phloroglucinols for the first time.
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Affiliation(s)
- Kirk C Pearce
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Rolly G Fuentes
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
- Virginia Tech Center for Drug Discovery, Virginia Tech, Blacksburg, Virginia 24061, United States
- Division of Natural Sciences and Mathematics, University of the Philippines Visayas Tacloban College, 6500 Tacloban City, Philippines
| | - Susana Calderon
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Rageshwari Marolikar
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - David G I Kingston
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
- Virginia Tech Center for Drug Discovery, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - T Daniel Crawford
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
- Molecular Sciences Software Institute, 1880 Pratt Drive, Suite 1100, Blacksburg, Virginia 24060, United States
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5
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Abstract
The author describes his 60-year career in studying the chemistry of natural products, which includes structural, synthetic, and biosynthetic studies of natural products ranging from insect pigments, antibiotics, and fecal mutagens to taxol and other anticancer natural products as well as antimalarial natural products. One of the compounds discussed, napabucasin, is now an anticancer drug in phase III clinical trials.
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Affiliation(s)
- David G I Kingston
- Department of Chemistry and the Virginia Tech Center for Drug Discovery, M/C 0212, Virginia Tech, Blacksburg, Virginia 24061, United States
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6
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Boonyaketgoson S, Du Y, Valenciano Murillo AL, Cassera MB, Kingston DGI, Trisuwan K. Flavanones from the Twigs and Barks of Artocarpus lakoocha Having Antiplasmodial and Anti-TB Activities. Chem Pharm Bull (Tokyo) 2021; 68:671-674. [PMID: 32612002 DOI: 10.1248/cpb.c20-00080] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Chromatographic separation of the acetone extracts from the twigs and barks of Artocarpus lakoocha led to the isolation of the one new flavanone, lakoochanone (1), together with eleven known compounds (2-12). Lakoochanone (1) and moracin C (4) exhibited weak antiplasmodial activity against Plasmodium falciparum Dd2 with IC50 values of 36.7 and 33.9 µM, respectively. Moreover, moracin C (4) and sanggenofuran B (5) showed cytotoxic activity against A2780 cell line with the respective IC50 values of 15.0 and 57.1 µM. In addition, cyclocommunin (7) displayed strong antimycobacterial activity against Mycobacterium tuberculosis H37Ra with the minimum inhibitory concentration (MIC) value of 12.3 µM.
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Affiliation(s)
- Sirada Boonyaketgoson
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Chiang Mai University.,Department of Chemistry, Virginia Tech
| | - Yongle Du
- Department of Chemistry, Virginia Tech
| | - Ana L Valenciano Murillo
- Department of Biochemistry and Molecular Biology, and Center for Tropical and Emerging Global Diseases (CTEGD), University of Georgia
| | - Maria B Cassera
- Department of Biochemistry and Molecular Biology, and Center for Tropical and Emerging Global Diseases (CTEGD), University of Georgia
| | | | - Kongkiat Trisuwan
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Chiang Mai University.,Research Center on Chemistry for Development of Health Promoting Products from Northern Resources, Chiang Mai University
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7
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Kim YA, Latif A, Kong CS, Seo Y, Dalal SR, Cassera MB, Kingston DGI. Antimalarial diterpenoids from Vitex rotundifolia: Isolation, structure elucidation, and in vitro antiplasmodial activity. Bioorg Chem 2020; 100:103925. [PMID: 32438132 DOI: 10.1016/j.bioorg.2020.103925] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 05/04/2020] [Accepted: 05/07/2020] [Indexed: 10/24/2022]
Abstract
Vitex rotundifolia is an important medicinal plant frequently employed in traditional medicines for the treatment of various ailments. Although this plant species has been under exploration for its constituents by various research groups including our own group, no reports were found regarding the antimalarial potential of this plant or of its purified phytochemicals. Phytochemical investigation of this plant yielded three new (1-3) and five known (4-8) diterpenoids. These compounds were purified by modern chromatographic techniques and their structures were determined by advanced spectroscopic techniques such as nuclear magnetic resonance (NMR) and high-resolution mass spectrometry (HRMS). The in vitro antiplasmodial activities were encouraging, as compounds 2, 6, and 8 were found to have significant IC50 values of 1.2, 1.3 and 11.0 µM, respectively against Plasmodium falciparum.
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Affiliation(s)
- You Ah Kim
- Division of Marine Bioscience, Korea Maritime and Ocean University, Busan 49112, Republic of Korea
| | - Abdul Latif
- Department of Chemistry, University of Malakand, Chakdara Dir (L) 18800, Khyber Pakhtunkhwa, Pakistan
| | - Chang-Suk Kong
- Department of Food and Nutrition, College of Medical and Life Sciences, Silla University, Busan 46958, Republic of Korea
| | - Youngwan Seo
- Division of Marine Bioscience, Korea Maritime and Ocean University, Busan 49112, Republic of Korea.
| | - Seema R Dalal
- Department of Biochemistry and Virginia Tech Center for Drug Discovery, M/C 0308, Virginia Tech, Blacksburg, VA 24061, USA
| | - Maria B Cassera
- Department of Biochemistry and Molecular Biology, and Center for Tropical and Emerging Global Diseases (CTEGD), University of Georgia, Athens, GA 30602, USA
| | - David G I Kingston
- Department of Chemistry and the Virginia Tech Center for Drug Discovery, M/C 0212, Virginia Tech, Blacksburg, VA 24061, USA
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8
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Du Y, Martin BA, Valenciano AL, Clement JA, Goetz M, Cassera MB, Kingston DGI. Galtonosides A-E: Antiproliferative and Antiplasmodial Cholestane Glycosides from Galtonia regalis. J Nat Prod 2020; 83:1043-1050. [PMID: 32227943 PMCID: PMC7183436 DOI: 10.1021/acs.jnatprod.9b01064] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
An extract of Galtonia regalis from the Natural Products Discovery Institute showed moderate antiplasmodial activity, with an IC50 value less than 1.25 μg/mL. The two known cholestane glycosides 1 and 2 and the five new cholestane glycosides galtonosides A-E (3-7) were isolated after bioassay-directed fractionation. The structures of the new compounds were determined by interpretation of their NMR and mass spectra. Among these compounds, galtonoside B (4) displayed the most potent antiplasmodial activity, with an IC50 value of 0.214 μM against the drug-resistant Dd2 strain of Plasmodium falciparum.
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Affiliation(s)
- Yongle Du
- Department of Chemistry and Virginia Tech Center
for Drug Discovery, M/C 0212, Virginia Tech, Blacksburg, VA 24061, United States of
America
| | - Brooke A. Martin
- Department of Chemistry and Virginia Tech Center
for Drug Discovery, M/C 0212, Virginia Tech, Blacksburg, VA 24061, United States of
America
| | - Ana Lisa Valenciano
- Department of Biochemistry and Molecular Biology,
and Center for Tropical and Emerging Global Diseases (CTEGD), University of Georgia,
Athens, Georgia 30602, United States of America
| | - Jason A. Clement
- Natural Products Discovery Institute, Baruch S.
Blumberg Institute, 3805 Old Easton Road, Doylestown, Pennsylvania 18902, United
States of America
| | - Michael Goetz
- Natural Products Discovery Institute, Baruch S.
Blumberg Institute, 3805 Old Easton Road, Doylestown, Pennsylvania 18902, United
States of America
| | - Maria B. Cassera
- Department of Biochemistry and Molecular Biology,
and Center for Tropical and Emerging Global Diseases (CTEGD), University of Georgia,
Athens, Georgia 30602, United States of America
| | - David G. I. Kingston
- Department of Chemistry and Virginia Tech Center
for Drug Discovery, M/C 0212, Virginia Tech, Blacksburg, VA 24061, United States of
America
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9
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Du Y, Valenciano AL, Dai Y, Zheng Y, Zhang F, Zhang Y, Clement J, Goetz M, Kingston DGI, Cassera MB. Anibamine and Its Analogues: Potent Antiplasmodial Agents from Aniba citrifolia. J Nat Prod 2020; 83:569-577. [PMID: 31577436 PMCID: PMC7103529 DOI: 10.1021/acs.jnatprod.9b00724] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
In our continuing search for novel natural products with antiplasmodial activity, an extract of Aniba citrifolia was found to have good activity, with an IC50 value less than 1.25 μg/mL. After bioassay-directed fractionation, the known indolizinium alkaloid anibamine (1) and the new indolizinium alkaloid anibamine B (2) were isolated as the major bioactive constituents, with antiplasmodial IC50 values of 0.170 and 0.244 μM against the drug-resistant Dd2 strain of Plasmodium falciparum. The new coumarin anibomarin A (3), the new norneolignan anibignan A (5), and six known neolignans (7-12) were also obtained. The structures of all the isolated compounds were determined based on analyses of 1D and 2D NMR spectroscopic and mass spectrometric data, and the absolute configuration of anibignan A (5) was assigned from its ECD spectrum. Evaluation of a library of 28 anibamine analogues (13-40) indicated that quaternary charged analogues had IC50 values as low as 58 nM, while uncharged analogues were inactive or significantly less active. Assessment of the potential effects of anibamine and its analogues on the intraerythrocytic stages and morphological development of P. falciparum revealed substantial activity against ring stages for compounds with two C-10 side chains, while those with only one C-10 side chain exhibited substantial activity against trophozoite stages, suggesting different mechanisms of action.
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Affiliation(s)
- Yongle Du
- Department of Chemistry and Virginia Tech Center for Drug Discovery, M/C 0212, Virginia Tech, Blacksburg, VA 24061, United States
| | - Ana Lisa Valenciano
- Department of Biochemistry and Molecular Biology, and Center for Tropical and Emerging Global Diseases (CTEGD), University of Georgia, Athens, Georgia 30602, United States
| | - Yumin Dai
- Department of Chemistry and Virginia Tech Center for Drug Discovery, M/C 0212, Virginia Tech, Blacksburg, VA 24061, United States
| | - Yi Zheng
- Department of Medicinal Chemistry, Virginia Commonwealth University, 800 E Leigh Street, Richmond, VA 23298, United States
| | - Feng Zhang
- Department of Medicinal Chemistry, Virginia Commonwealth University, 800 E Leigh Street, Richmond, VA 23298, United States
| | - Yan Zhang
- Department of Medicinal Chemistry, Virginia Commonwealth University, 800 E Leigh Street, Richmond, VA 23298, United States
| | - Jason Clement
- Natural Products Discovery Institute, Baruch S. Blumberg Institute, 3805 Old Easton Road, Doylestown, Pennsylvania 18902, United States
| | - Michael Goetz
- Natural Products Discovery Institute, Baruch S. Blumberg Institute, 3805 Old Easton Road, Doylestown, Pennsylvania 18902, United States
| | - David G. I. Kingston
- Department of Chemistry and Virginia Tech Center for Drug Discovery, M/C 0212, Virginia Tech, Blacksburg, VA 24061, United States
| | - Maria B. Cassera
- Department of Biochemistry and Molecular Biology, and Center for Tropical and Emerging Global Diseases (CTEGD), University of Georgia, Athens, Georgia 30602, United States
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10
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Jeong H, Latif A, Kong CS, Seo Y, Lee YJ, Dalal SR, Cassera MB, Kingston DGI. Isolation and characterization of antiplasmodial constituents from the marine sponge Coscinoderma sp. ACTA ACUST UNITED AC 2020; 74:313-318. [PMID: 31393837 DOI: 10.1515/znc-2019-0039] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Accepted: 07/18/2019] [Indexed: 12/26/2022]
Abstract
Six known compounds, namely two halisulfates 1 and 2 and four epidioxy sterols 3-6, were isolated from the marine sponge Coscinoderma sp. The structures of these compounds were confirmed by nuclear magnetic resonance (1H and 13C NMR) spectroscopy, and their antiplasmodial activities were determined against the chloroquine-resistant Dd2 strain of Plasmodium falciparum. The epidioxy steroids 3-6 all showed moderate to weak antiplasmodial activity, with IC50 values of 2.7 μM for (24S)-5α,8α-epidioxy-24-methylcholesta-6-en-3β-ol (3), 11.6 μM for 5α,8α-epidioxycholesta-6,24(28)-dien-3β-o1 (4), 2.33 μM for 5α,8α-epidioxy-24-methylcholesta-6,9(11)-24(28)-trien-3β-ol (5), and between 12 and 24 μM for 5α,8α-epidioxycholesta-6-en-3β-ol (6). In contrast, halisulfate 2 (1) was inactive, and halisulfate 1 (2) had an of IC50 value of about 24 μM.
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Affiliation(s)
- Huijeong Jeong
- Division of Marine Bioscience, Korea Maritime and Ocean University, Busan 49112, Republic of Korea
| | - Abdul Latif
- Department of Chemistry, University of Malakand, Chakdara, Dir Lower, KP, Pakistan
| | - Chang-Suk Kong
- Department of Food and Nutrition, College of Medical and Life Sciences, Silla University, Busan 46958, Republic of Korea
| | - Youngwan Seo
- Division of Marine Bioscience, Korea Maritime and Ocean University, Busan 49112, Republic of Korea
| | - Yeon-Ju Lee
- Marine Natural Product Chemistry Laboratory, Korea Institute of Ocean Science and Technology, Ansan 15627, Republic of Korea
| | - Seema R Dalal
- Department of Biochemistry and Molecular Biology, Center for Tropical and Emerging Global Diseases (CTEGD), University of Georgia, Athens, GA 30602, USA
| | - Maria B Cassera
- Department of Biochemistry and Molecular Biology, Center for Tropical and Emerging Global Diseases (CTEGD), University of Georgia, Athens, GA 30602, USA
| | - David G I Kingston
- Department of Chemistry, Virginia Tech Center for Drug Discovery, M/C 0212, Virginia Tech, Blacksburg, VA 24061, USA
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11
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Abstract
Abstract
Methods of identifying mycotoxins by mass spectrometry are reviewed, with special reference to the value of a complete listing of known fungal metabolites, arranged by molecular weight. Such a list is applied to the identification of various mycotoxins, and mass spectrometry is applied to the structural elucidation of dimethylnidurufin and ostreogrycin A.
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Affiliation(s)
- David G I Kingston
- Department of Chemistry, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061
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12
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Nilubol N, Yuan Z, Paciotti GF, Tamarkin L, Sanchez C, Gaskins K, Freedman EM, Cao S, Zhao J, Kingston DGI, Libutti SK, Kebebew E. Novel Dual-Action Targeted Nanomedicine in Mice With Metastatic Thyroid Cancer and Pancreatic Neuroendocrine Tumors. J Natl Cancer Inst 2019; 110:1019-1029. [PMID: 29481652 DOI: 10.1093/jnci/djy003] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Accepted: 01/08/2018] [Indexed: 01/01/2023] Open
Abstract
Background The advantages of nanomedicines include preferential delivery of the payload directly to tumor tissues. CYT-21625 is the novel, first-in-class gold nanomedicine designed to target tumor vasculature and cancer cells by specifically delivering recombinant human tumor necrosis factor alpha (rhTNF) and a paclitaxel prodrug. Methods We analyzed TNF receptor expression in publicly available gene expression profiling data and in thyroid tissue samples. Mice with metastatic FTC-133 and 8505C xenografts and the MEN1 conditional knock-out mice were treated weekly with CYT-21625 and gold nanoparticles with rhTNF only (CYT-6091); controls included mice treated with either paclitaxel or saline. In vivo luciferase activity was used to assess the effects on tumor growth. Computed tomography, magnetic resonance imaging, and 18F-Fludeoxyglucose positron emission tomography were used to study tumor selectivity in mice with insulin-secreting pancreatic neuroendocrine tumors (PNETs). All statistical tests were two-sided. Results Anaplastic thyroid cancer (ATC) expressed statistically significantly higher levels of TNF receptor superfamily 1A and 1B messenger RNA (n = 11) and protein (n = 6) than control samples (n = 45 and 13, respectively). Mice (n = 5-7 per group) with metastatic ATC (P < .009) and FTC-133 xenografts (P = .03 at week 3, but not statistically significant in week 4 owing to reduced sample size from death in non-CYT-21625 groups) treated with CYT-21625 had a statistically significantly lower tumor burden. Treatment with CYT-21625 resulted in loss of CD34 expression in intratumoral vasculature, decreased proliferating cell nuclear antigen, and increased cleaved caspase-3. Intratumoral vascular leakage occurred only in mice with PNET and ATC treated with CYT-6091 and CYT-21625. CYT-6091 and CYT-21625 preferentially deposited in PNETs and statistically significantly decreased serum insulin levels (n = 3 per group, P < .001). There were no toxicities observed in mice treated with CYT-21625. Conclusions CYT-21625 is effective in mice with PNETs and metastatic human thyroid cancer with no toxicities. Thus, CYT-21625 should be studied in patients with advanced PNETs and thyroid cancer.
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Affiliation(s)
- Naris Nilubol
- Endocrine Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - ZiQiang Yuan
- Department of Surgery, Albert Einstein College of Medicine, Bronx, NY
| | | | | | - Carmen Sanchez
- Department of Surgery, Albert Einstein College of Medicine, Bronx, NY
| | - Kelli Gaskins
- Endocrine Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - Esther M Freedman
- Endocrine Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - Shugeng Cao
- Department of Chemistry and the Virginia Tech Center for Drug Discovery, Blacksburg, VA
| | - Jielu Zhao
- Department of Chemistry and the Virginia Tech Center for Drug Discovery, Blacksburg, VA
| | - David G I Kingston
- Department of Chemistry and the Virginia Tech Center for Drug Discovery, Blacksburg, VA
| | - Steven K Libutti
- Department of Surgery, Albert Einstein College of Medicine, Bronx, NY
| | - Electron Kebebew
- Endocrine Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD
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13
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Cardellina JH, Cragg GM, Kingston DGI, Newman DJ. Special Issue in Honor of Dr. Barbara N. Timmermann. J Nat Prod 2019; 82:425-426. [PMID: 30897909 DOI: 10.1021/acs.jnatprod.9b00008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
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14
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Fuentes RG, Pearce KC, Du Y, Rakotondrafara A, Valenciano AL, Cassera MB, Rasamison VE, Crawford TD, Kingston DGI. Phloroglucinols from the Roots of Garcinia dauphinensis and Their Antiproliferative and Antiplasmodial Activities. J Nat Prod 2019; 82:431-439. [PMID: 30354100 PMCID: PMC7053582 DOI: 10.1021/acs.jnatprod.8b00379] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Garcinia dauphinensis is a previously uninvestigated endemic plant species of Madagascar. The new phloroglucinols dauphinols A-F and 3'-methylhyperjovoinol B (1-7) and six known phloroglucinols (8-13) together with tocotrienol 14 and the three triterpenoids 15-17 were isolated from an ethanolic extract of G. dauphinensis roots using various chromatographic techniques. The structures of the isolated compounds were elucidated by NMR, MS, optical rotation, and ECD data. Theoretical ECD spectra and specific rotations for 2 were calculated and compared to experimental data in order to assign its absolute configuration. Among the compounds tested, 1 showed the most promising growth inhibitory activity against A2870 ovarian cancer cells, with IC50 = 4.5 ± 0.9 μM, while 2 had good antiplasmodial activity against the Dd2 drug-resistant strain of Plasmodium falciparum, with IC50 = 0.8 ± 0.1 μM.
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Affiliation(s)
- Rolly G. Fuentes
- Department of Chemistry and the Virginia Tech Center for Drug Discovery, Virginia Tech, Blacksburg, VA 24061, United States
- Division of Natural Sciences and Mathematics, University of the Philippines Visayas Tacloban College, 6500 Tacloban City, Philippines
| | - Kirk C. Pearce
- Department of Chemistry and the Virginia Tech Center for Drug Discovery, Virginia Tech, Blacksburg, VA 24061, United States
| | - Yongle Du
- Department of Chemistry and the Virginia Tech Center for Drug Discovery, Virginia Tech, Blacksburg, VA 24061, United States
| | - Andriamalala Rakotondrafara
- Département d’Ethnobotanique et de Botanique, Centre National d’Application des Recherches Pharmaceutiques, Ambodivoanjo, BP 702, Antananarivo 101, Madagascar
| | - Ana L. Valenciano
- Department of Biochemistry and Molecular Biology, Center for Tropical and Emerging Global Diseases (CTEGD), University of Georgia, Athens, GA 30602, United States
| | - Maria B. Cassera
- Department of Biochemistry and Molecular Biology, Center for Tropical and Emerging Global Diseases (CTEGD), University of Georgia, Athens, GA 30602, United States
| | - Vincent E. Rasamison
- Centre National d’Application des Recherches Pharmaceutiques, B.P 702, 101 Antananarivo, Madagascar
| | - T. Daniel Crawford
- Department of Chemistry and the Virginia Tech Center for Drug Discovery, Virginia Tech, Blacksburg, VA 24061, United States
| | - David G. I. Kingston
- Department of Chemistry and the Virginia Tech Center for Drug Discovery, Virginia Tech, Blacksburg, VA 24061, United States
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McAlpine JB, Chen SN, Kutateladze A, MacMillan JB, Appendino G, Barison A, Beniddir MA, Biavatti MW, Bluml S, Boufridi A, Butler MS, Capon RJ, Choi YH, Coppage D, Crews P, Crimmins MT, Csete M, Dewapriya P, Egan JM, Garson MJ, Genta-Jouve G, Gerwick WH, Gross H, Harper MK, Hermanto P, Hook JM, Hunter L, Jeannerat D, Ji NY, Johnson TA, Kingston DGI, Koshino H, Lee HW, Lewin G, Li J, Linington RG, Liu M, McPhail KL, Molinski TF, Moore BS, Nam JW, Neupane RP, Niemitz M, Nuzillard JM, Oberlies NH, Ocampos FMM, Pan G, Quinn RJ, Reddy DS, Renault JH, Rivera-Chávez J, Robien W, Saunders CM, Schmidt TJ, Seger C, Shen B, Steinbeck C, Stuppner H, Sturm S, Taglialatela-Scafati O, Tantillo DJ, Verpoorte R, Wang BG, Williams CM, Williams PG, Wist J, Yue JM, Zhang C, Xu Z, Simmler C, Lankin DC, Bisson J, Pauli GF. The value of universally available raw NMR data for transparency, reproducibility, and integrity in natural product research. Nat Prod Rep 2019; 36:35-107. [PMID: 30003207 PMCID: PMC6350634 DOI: 10.1039/c7np00064b] [Citation(s) in RCA: 74] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Indexed: 12/20/2022]
Abstract
Covering: up to 2018With contributions from the global natural product (NP) research community, and continuing the Raw Data Initiative, this review collects a comprehensive demonstration of the immense scientific value of disseminating raw nuclear magnetic resonance (NMR) data, independently of, and in parallel with, classical publishing outlets. A comprehensive compilation of historic to present-day cases as well as contemporary and future applications show that addressing the urgent need for a repository of publicly accessible raw NMR data has the potential to transform natural products (NPs) and associated fields of chemical and biomedical research. The call for advancing open sharing mechanisms for raw data is intended to enhance the transparency of experimental protocols, augment the reproducibility of reported outcomes, including biological studies, become a regular component of responsible research, and thereby enrich the integrity of NP research and related fields.
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Affiliation(s)
- James B McAlpine
- Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA. ,
| | - Shao-Nong Chen
- Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA. ,
| | - Andrei Kutateladze
- Department of Chemistry and Biochemistry, University of Denver, Denver, CO 80210, USA
| | - John B MacMillan
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, CA 95064, USA
| | - Giovanni Appendino
- Dipartimento di Scienze Chimiche, Alimentari, Farmaceutiche e Farmacologiche, Universita` del Piemonte Orientale, Via Bovio 6, 28100 Novara, Italy
| | | | - Mehdi A Beniddir
- Équipe "Pharmacognosie-Chimie des Substances Naturelles" BioCIS, Univ. Paris-Sud, CNRS, Université Paris-Saclay, 5 rue J.-B. Clément, 92290 Châtenay-Malabry, France
| | - Maique W Biavatti
- Department of Pharmaceutical Sciences, Federal University of Santa Catarina, Florianópolis, Brazil
| | - Stefan Bluml
- University of Southern California, Keck School of Medicine, Los Angeles, CA 90089, USA
| | - Asmaa Boufridi
- Griffith Institute for Drug Discovery, Griffith University, Brisbane, QLD 4111, Australia
| | - Mark S Butler
- Institute for Molecular Bioscience, The University of Queensland, St. Lucia, QLD 4072, Australia
| | - Robert J Capon
- Institute for Molecular Bioscience, The University of Queensland, St. Lucia, QLD 4072, Australia
| | - Young H Choi
- Division of Pharmacognosy, Section Metabolomics, Institute of Biology, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands
| | - David Coppage
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, CA 95064, USA
| | - Phillip Crews
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, CA 95064, USA
| | - Michael T Crimmins
- Kenan and Caudill Laboratories of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Marie Csete
- University of Southern California, Huntington Medical Research Institutes, 99 N. El Molino Ave., Pasadena, CA 91101, USA
| | - Pradeep Dewapriya
- Institute for Molecular Bioscience, The University of Queensland, St. Lucia, QLD 4072, Australia
| | - Joseph M Egan
- Department of Chemistry, Simon Fraser University, Burnaby, BC V5A 1S6, Canada
| | - Mary J Garson
- School of Chemistry and Molecular Sciences, University of Queensland, St. Lucia, QLD 4072, Australia
| | - Grégory Genta-Jouve
- C-TAC, UMR 8638 CNRS, Faculté de Pharmacie de Paris, Paris-Descartes University, Sorbonne, Paris Cité, 4, Aveue de l'Observatoire, 75006 Paris, France
| | - William H Gerwick
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, La Jolla, San Diego, CA 92093, USA and Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, La Jolla, CA 92093, USA
| | - Harald Gross
- Pharmaceutical Institute, Department of Pharmaceutical Biology, Eberhard Karls University of Tübingen, Auf der Morgenstelle 8, 72076 Tübingen, Germany
| | - Mary Kay Harper
- Department of Medicinal Chemistry, University of Utah, Salt Lake City, UT 84112, USA
| | - Precilia Hermanto
- NMR Facility, Mark Wainwright Analytical Centre, University of New South Wales, Sydney, NSW 2052, Australia
| | - James M Hook
- NMR Facility, Mark Wainwright Analytical Centre, University of New South Wales, Sydney, NSW 2052, Australia
| | - Luke Hunter
- NMR Facility, Mark Wainwright Analytical Centre, University of New South Wales, Sydney, NSW 2052, Australia
| | - Damien Jeannerat
- University of Geneva, Department of Organic Chemistry, 30 quai E. Ansermet, CH 1211 Geneva 4, Switzerland
| | - Nai-Yun Ji
- Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Chunhui Road 17, Yantai 264003, People's Republic of China
| | - Tyler A Johnson
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, CA 95064, USA
| | - David G I Kingston
- Department of Chemistry, M/C 0212, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA
| | - Hiroyuki Koshino
- RIKEN Center for Sustainable Resource Science, Wako, Saitama, 351-0198, Japan
| | - Hsiau-Wei Lee
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, CA 95064, USA
| | - Guy Lewin
- Équipe "Pharmacognosie-Chimie des Substances Naturelles" BioCIS, Univ. Paris-Sud, CNRS, Université Paris-Saclay, 5 rue J.-B. Clément, 92290 Châtenay-Malabry, France
| | - Jie Li
- Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, La Jolla, CA 92093, USA
| | - Roger G Linington
- Department of Chemistry, Simon Fraser University, Burnaby, BC V5A 1S6, Canada
| | - Miaomiao Liu
- Griffith Institute for Drug Discovery, Griffith University, Brisbane, QLD 4111, Australia
| | - Kerry L McPhail
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Corvallis, OR 97331, USA
| | - Tadeusz F Molinski
- Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA. , and
| | - Bradley S Moore
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, La Jolla, San Diego, CA 92093, USA and Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, La Jolla, CA 92093, USA
| | - Joo-Won Nam
- Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA. , and
| | - Ram P Neupane
- Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA. , and
| | - Matthias Niemitz
- Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA. , and
| | - Jean-Marc Nuzillard
- Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA. , and
| | - Nicholas H Oberlies
- Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA. , and
| | | | - Guohui Pan
- Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA. , and
| | - Ronald J Quinn
- Griffith Institute for Drug Discovery, Griffith University, Brisbane, QLD 4111, Australia
| | - D Sai Reddy
- Department of Chemistry and Biochemistry, University of Denver, Denver, CO 80210, USA
| | - Jean-Hugues Renault
- Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA. , and
| | - José Rivera-Chávez
- Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA. , and
| | - Wolfgang Robien
- Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA. , and
| | - Carla M Saunders
- Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA. , and
| | - Thomas J Schmidt
- Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA. , and
| | - Christoph Seger
- Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA. , and
| | - Ben Shen
- Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA. , and
| | - Christoph Steinbeck
- Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA. , and
| | - Hermann Stuppner
- Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA. , and
| | - Sonja Sturm
- Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA. , and
| | - Orazio Taglialatela-Scafati
- Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA. , and
| | - Dean J Tantillo
- Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA. , and
| | - Robert Verpoorte
- Division of Pharmacognosy, Section Metabolomics, Institute of Biology, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands
| | - Bin-Gui Wang
- Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Chunhui Road 17, Yantai 264003, People's Republic of China and Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA. , and
| | - Craig M Williams
- School of Chemistry and Molecular Sciences, University of Queensland, St. Lucia, QLD 4072, Australia
| | - Philip G Williams
- Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA. , and
| | - Julien Wist
- Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA. , and
| | - Jian-Min Yue
- Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA. , and
| | - Chen Zhang
- Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA. , and
| | - Zhengren Xu
- Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA. , and
| | - Charlotte Simmler
- Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA. ,
| | - David C Lankin
- Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA. ,
| | - Jonathan Bisson
- Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA. ,
| | - Guido F Pauli
- Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA. ,
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16
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McAlpine JB, Chen SN, Kutateladze A, MacMillan JB, Appendino G, Barison A, Beniddir MA, Biavatti MW, Bluml S, Boufridi A, Butler MS, Capon RJ, Choi YH, Coppage D, Crews P, Crimmins MT, Csete M, Dewapriya P, Egan JM, Garson MJ, Genta-Jouve G, Gerwick WH, Gross H, Harper MK, Hermanto P, Hook JM, Hunter L, Jeannerat D, Ji NY, Johnson TA, Kingston DGI, Koshino H, Lee HW, Lewin G, Li J, Linington RG, Liu M, McPhail KL, Molinski TF, Moore BS, Nam JW, Neupane RP, Niemitz M, Nuzillard JM, Oberlies NH, Ocampos FMM, Pan G, Quinn RJ, Reddy DS, Renault JH, Rivera-Chávez J, Robien W, Saunders CM, Schmidt TJ, Seger C, Shen B, Steinbeck C, Stuppner H, Sturm S, Taglialatela-Scafati O, Tantillo DJ, Verpoorte R, Wang BG, Williams CM, Williams PG, Wist J, Yue JM, Zhang C, Xu Z, Simmler C, Lankin DC, Bisson J, Pauli GF. Correction: The value of universally available raw NMR data for transparency, reproducibility, and integrity in natural product research. Nat Prod Rep 2018; 36:248-249. [PMID: 30468235 DOI: 10.1039/c8np90041h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Correction for 'The value of universally available raw NMR data for transparency, reproducibility, and integrity in natural product research' by James B. McAlpine et al., Nat. Prod. Rep., 2018, DOI: .
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Affiliation(s)
- James B McAlpine
- Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA.
| | - Shao-Nong Chen
- Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA.
| | - Andrei Kutateladze
- Department of Chemistry and Biochemistry, University of Denver, Denver, CO 80210, USA
| | - John B MacMillan
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, CA 95064, USA
| | - Giovanni Appendino
- Dipartimento di Scienze Chimiche, Alimentari, Farmaceutiche e Farmacologiche, Università del Piemonte Orientale, Via Bovio 6, 28100 Novara, Italy
| | | | - Mehdi A Beniddir
- Équipe "Pharmacognosie-Chimie des Substances Naturelles" BioCIS, Univ. Paris-Sud, CNRS, Université Paris-Saclay, 5 rue J.-B. Clément, 92290 Châtenay-Malabry, France
| | - Maique W Biavatti
- Department of Pharmaceutical Sciences, Federal University of Santa Catarina, Florianópolis, Brazil
| | - Stefan Bluml
- University of Southern California, Keck School of Medicine, Los Angeles, CA 90089, USA
| | - Asmaa Boufridi
- Griffith Institute for Drug Discovery, Griffith University, Brisbane, QLD 4111, Australia
| | - Mark S Butler
- Institute for Molecular Bioscience, The University of Queensland, St. Lucia, QLD 4072, Australia
| | - Robert J Capon
- Institute for Molecular Bioscience, The University of Queensland, St. Lucia, QLD 4072, Australia
| | - Young H Choi
- Division of Pharmacognosy, Section Metabolomics, Institute of Biology, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands
| | - David Coppage
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, CA 95064, USA
| | - Phillip Crews
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, CA 95064, USA
| | - Michael T Crimmins
- Kenan and Caudill Laboratories of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Marie Csete
- University of Southern California, Huntington Medical Research Institutes, 99 N. El Molino Ave., Pasadena, CA 91101, USA
| | - Pradeep Dewapriya
- Institute for Molecular Bioscience, The University of Queensland, St. Lucia, QLD 4072, Australia
| | - Joseph M Egan
- Department of Chemistry, Simon Fraser University, Burnaby, BC V5A 1S6, Canada
| | - Mary J Garson
- School of Chemistry and Molecular Sciences, University of Queensland, St. Lucia, QLD 4072, Australia
| | - Grégory Genta-Jouve
- C-TAC, UMR 8638 CNRS, Faculté de Pharmacie de Paris, Paris-Descartes University, Sorbonne, Paris Cité, 4, Aveue de l'Observatoire, 75006 Paris, France
| | - William H Gerwick
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, La Jolla, San Diego, CA 92093, USA and Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, La Jolla, CA 92093, USA
| | - Harald Gross
- Pharmaceutical Institute, Department of Pharmaceutical Biology, Eberhard Karls University of Tübingen, Auf der Morgenstelle 8, 72076 Tübingen, Germany
| | - Mary Kay Harper
- Department of Medicinal Chemistry, University of Utah, Salt Lake City, UT 84112, USA
| | - Precilia Hermanto
- NMR Facility, Mark Wainwright Analytical Centre, University of New South Wales, Sydney, NSW 2052, Australia
| | - James M Hook
- NMR Facility, Mark Wainwright Analytical Centre, University of New South Wales, Sydney, NSW 2052, Australia
| | - Luke Hunter
- NMR Facility, Mark Wainwright Analytical Centre, University of New South Wales, Sydney, NSW 2052, Australia
| | - Damien Jeannerat
- University of Geneva, Department of Organic Chemistry, 30 quai E. Ansermet, CH 1211 Geneva 4, Switzerland
| | - Nai-Yun Ji
- Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Chunhui Road 17, Yantai 264003, People's Republic of China
| | - Tyler A Johnson
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, CA 95064, USA
| | - David G I Kingston
- Department of Chemistry, M/C 0212, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA
| | - Hiroyuki Koshino
- RIKEN Center for Sustainable Resource Science, Wako, Saitama, 351-0198, Japan
| | - Hsiau-Wei Lee
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, CA 95064, USA
| | - Guy Lewin
- Équipe "Pharmacognosie-Chimie des Substances Naturelles" BioCIS, Univ. Paris-Sud, CNRS, Université Paris-Saclay, 5 rue J.-B. Clément, 92290 Châtenay-Malabry, France
| | - Jie Li
- Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, La Jolla, CA 92093, USA
| | - Roger G Linington
- Department of Chemistry, Simon Fraser University, Burnaby, BC V5A 1S6, Canada
| | - Miaomiao Liu
- Griffith Institute for Drug Discovery, Griffith University, Brisbane, QLD 4111, Australia
| | - Kerry L McPhail
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Corvallis, OR 97331, USA
| | - Tadeusz F Molinski
- Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA. and
| | - Bradley S Moore
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, La Jolla, San Diego, CA 92093, USA and Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, La Jolla, CA 92093, USA
| | - Joo-Won Nam
- Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA. and
| | - Ram P Neupane
- Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA. and
| | - Matthias Niemitz
- Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA. and
| | - Jean-Marc Nuzillard
- Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA. and
| | - Nicholas H Oberlies
- Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA. and
| | | | - Guohui Pan
- Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA. and
| | - Ronald J Quinn
- Griffith Institute for Drug Discovery, Griffith University, Brisbane, QLD 4111, Australia
| | - D Sai Reddy
- Department of Chemistry and Biochemistry, University of Denver, Denver, CO 80210, USA
| | - Jean-Hugues Renault
- Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA. and
| | - José Rivera-Chávez
- Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA. and
| | - Wolfgang Robien
- Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA. and
| | - Carla M Saunders
- Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA. and
| | - Thomas J Schmidt
- Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA. and
| | - Christoph Seger
- Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA. and
| | - Ben Shen
- Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA. and
| | - Christoph Steinbeck
- Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA. and
| | - Hermann Stuppner
- Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA. and
| | - Sonja Sturm
- Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA. and
| | - Orazio Taglialatela-Scafati
- Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA. and
| | - Dean J Tantillo
- Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA. and
| | - Robert Verpoorte
- Division of Pharmacognosy, Section Metabolomics, Institute of Biology, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands
| | - Bin-Gui Wang
- Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Chunhui Road 17, Yantai 264003, People's Republic of China and Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA. and
| | - Craig M Williams
- School of Chemistry and Molecular Sciences, University of Queensland, St. Lucia, QLD 4072, Australia
| | - Philip G Williams
- Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA. and
| | - Julien Wist
- Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA. and
| | - Jian-Min Yue
- Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA. and
| | - Chen Zhang
- Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA. and
| | - Zhengren Xu
- Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA. and
| | - Charlotte Simmler
- Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA.
| | - David C Lankin
- Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA.
| | - Jonathan Bisson
- Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA.
| | - Guido F Pauli
- Center for Natural Product Technologies (CENAPT), Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS), Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612, USA.
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17
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Ju E, Latif A, Kong CS, Seo Y, Lee YJ, Dalal SR, Cassera MB, Kingston DGI. Antimalarial activity of the isolates from the marine sponge Hyrtios erectus against the chloroquine-resistant Dd2 strain of Plasmodium falciparum. Z NATURFORSCH C 2018; 73:397-400. [PMID: 29813035 DOI: 10.1515/znc-2018-0025] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2018] [Accepted: 04/30/2018] [Indexed: 11/15/2022]
Abstract
Abstract
This work reports the isolation of the three known compounds, smenotronic acid (1), ilimaquinone (2), and pelorol (3), from the 85% methanol (MeOH)-soluble fraction of the sponge Hyrtios erectus. The structures of the isolated compounds were determined with the help of modern spectroscopic techniques, and the resulting compounds were then subjected to in vitro screening to determine their antimalarial potential against the chloroquine-resistant Dd2 strain of Plasmodium falciparum. Amongst the three compounds, pelorol (3) showed significant activity against P. falciparum with an IC50 value of 0.8 μM. For smenotronic acid (1) and ilimaquinone (2), moderate activities were observed with IC50 values of 3.51 and 2.11 μM, respectively.
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Affiliation(s)
- Eunsin Ju
- Division of Marine Bioscience, Korea Maritime and Ocean University, Busan 49112, Republic of Korea
| | - Abdul Latif
- Department of Chemistry, University of Malakand, Chakdara 18800, Dir Lower, Khyber Pakhtunkhwa, Pakistan
| | - Chang-Suk Kong
- Department of Food and Nutrition, College of Medical and Life Sciences, Silla University, Busan 46958, Republic of Korea
| | - Youngwan Seo
- Division of Marine Bioscience, Korea Maritime and Ocean University, Busan 49112, Republic of Korea
| | - Yeon-Ju Lee
- Marine Natural Product Chemistry Laboratory, Korea Institute of Ocean Science and Technology, Ansan 15627, Republic of Korea
| | - Seema R Dalal
- Department of Biochemistry and Virginia Tech Center for Drug Discovery, M/C 0308, Virginia Tech, Blacksburg, VA 24061, USA
| | - Maria B Cassera
- Department of Biochemistry and Virginia Tech Center for Drug Discovery, M/C 0308, Virginia Tech, Blacksburg, VA 24061, USA
| | - David G I Kingston
- Department of Chemistry and the Virginia Tech Center for Drug Discovery, M/C 0212, Virginia Tech, Blacksburg, VA 24061, USA
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18
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Abstract
An extract of Petradoria pumila from the Natural Products Discovery Institute was found to have moderate antiplasmodial activity, with an IC50 value between 5 and 10 μg/mL. The four new diterpenoids petradoriolides A-D (1-4), the new benzotropolone petradoriolone (5), and the two known lignans 6 and 7 were isolated after bioassay-directed fractionation. The structures and stereochemistries of the new compounds were determined by interpretation of NMR spectroscopy, mass spectrometry, and ECD spectra. Among these compounds, petradoriolide C (3) displayed the most potent antiplasmodial activity, with an IC50 value of 7.3 μM.
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Affiliation(s)
- Yongle Du
- Department of Chemistry and the Virginia Tech Center
for Drug Discovery, M/C 0212, Virginia Tech, Blacksburg, Virginia 24061, United
States
| | - Ana L. Valenciano
- Department of Biochemistry and Molecular Biology,
and Center for Tropical and Emerging Global Diseases (CTEGD), University of Georgia,
Athens, Georgia 30602, United States
| | - Michael Goetz
- Natural Products Discovery Institute, 3805 Old
Easton Road, Doylestown, Pennsylvania 18902, USA
| | - Maria B. Cassera
- Department of Biochemistry and Molecular Biology,
and Center for Tropical and Emerging Global Diseases (CTEGD), University of Georgia,
Athens, Georgia 30602, United States
| | - David G. I. Kingston
- Department of Chemistry and the Virginia Tech Center
for Drug Discovery, M/C 0212, Virginia Tech, Blacksburg, Virginia 24061, United
States
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19
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Presley CC, Valenciano AL, Fernández-Murga ML, Du Y, Shanaiah N, Cassera MB, Goetz M, Clement JA, Kingston DGI. Antiplasmodial Chromanes and Chromenes from the Monotypic Plant Species Koeberlinia spinosa. J Nat Prod 2018; 81:475-483. [PMID: 29048892 PMCID: PMC5866173 DOI: 10.1021/acs.jnatprod.7b00579] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Nine new compounds containing either a chromane or chromene ring moiety were isolated from the monotypic plant Koeberlinia spinosa. Compounds 1-4 are chromanes with all possible E and Z isomers of the isoprenoid side chain, with compound 5 a methylated derivative of 1. Compounds 6 and 7 were assigned as diastereomeric cyclized derivatives of 2 and were probably artifacts formed during the extraction or the isolation processes. Compounds 8 and 9 were characterized as new chromenes. Structure elucidation of 1-9 was conducted via 1D and 2D NMR spectroscopic data interpretation, and absolute configurations were determined by ECD spectroscopic analysis. Compounds 2, 5, 6, and 7 had weak antiplasmodial activity, while none of the compounds exhibited antiproliferative activity. The isolation, structure elucidation, and biological evaluation of these compounds are presented.
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Affiliation(s)
| | - Ana Lisa Valenciano
- Department of Biochemistry and Molecular Biology, and Center for Tropical and Emerging Global Diseases (CTEGD), University of Georgia, Athens, Georgia 30602, United States
| | | | - Yongle Du
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
| | | | - Maria B. Cassera
- Department of Biochemistry and Molecular Biology, and Center for Tropical and Emerging Global Diseases (CTEGD), University of Georgia, Athens, Georgia 30602, United States
| | - Michael Goetz
- Natural Products Discovery Institute, 3805 Old Easton Road, Doylestown, Pennsylvania 18902, United States
| | - Jason A. Clement
- Natural Products Discovery Institute, 3805 Old Easton Road, Doylestown, Pennsylvania 18902, United States
| | - David G. I. Kingston
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
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20
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Affiliation(s)
- Susan L Mooberry
- University of Texas Health Science Center at San Antonio , San Antonio , Texas , United States
| | | | - Amos B Smith
- University of Pennsylvania , Philadelphia , Pennsylvania , United States
| | - Steven M Swanson
- University of Wisconsin-Madison , Madison , Wisconsin , United States
| | - Mansukh C Wani
- Research Triangle Institute , Research Triangle Park , North Carolina , United States
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21
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Abstract
The structures of the α-pyrones cryptorigidifoliols E (5) and K (11) have been reassigned as 5C and 11C.
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22
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Du Y, Xia L, Jo A, Davis RM, Bissel P, Ehrich MF, Kingston DGI. Synthesis and Evaluation of Doxorubicin-Loaded Gold Nanoparticles for Tumor-Targeted Drug Delivery. Bioconjug Chem 2018; 29:420-430. [PMID: 29261297 DOI: 10.1021/acs.bioconjchem.7b00756] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Doxorubicin is an effective and widely used cancer chemotherapeutic agent, but its application is greatly compromised by its cumulative dose-dependent side effect of cardiotoxicity. A gold nanoparticle-based drug delivery system has been designed to overcome this limitation. Five novel thiolated doxorubicin analogs were synthesized and their biological activities evaluated. Two of these analogs and PEG stabilizing ligands were then conjugated to gold nanoparticles, and the resulting Au-Dox constructs were evaluated. The results show that release of native drug can be achieved by the action of reducing agents such as glutathione or under acidic conditions, but reductive drug release gave the cleanest drug release. Gold nanoparticles (Au-Dox) were prepared with different loadings of PEG and doxorubicin, and one formulation was evaluated for mammalian stability and toxicity. Plasma levels of doxorubicin in mice treated with Au-Dox were significantly lower than in mice treated with the same amount of doxorubicin, indicating that the construct is stable under physiological conditions. Treatment of mice with Au-Dox gave no histopathologically observable differences from mice treated with saline, while mice treated with an equivalent dose of doxorubicin showed significant histopathologically observable lesions.
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Affiliation(s)
- Yongle Du
- Department of Chemistry, ‡Department of Chemical Engineering, §Virginia-Maryland College of Veterinary Medicine, and ∥the Virginia Tech Center for Drug Discovery, Virginia Tech , Blacksburg, Virginia 24061, United States
| | - Long Xia
- Department of Chemistry, ‡Department of Chemical Engineering, §Virginia-Maryland College of Veterinary Medicine, and ∥the Virginia Tech Center for Drug Discovery, Virginia Tech , Blacksburg, Virginia 24061, United States
| | - Ami Jo
- Department of Chemistry, ‡Department of Chemical Engineering, §Virginia-Maryland College of Veterinary Medicine, and ∥the Virginia Tech Center for Drug Discovery, Virginia Tech , Blacksburg, Virginia 24061, United States
| | - Richey M Davis
- Department of Chemistry, ‡Department of Chemical Engineering, §Virginia-Maryland College of Veterinary Medicine, and ∥the Virginia Tech Center for Drug Discovery, Virginia Tech , Blacksburg, Virginia 24061, United States
| | - Philippe Bissel
- Department of Chemistry, ‡Department of Chemical Engineering, §Virginia-Maryland College of Veterinary Medicine, and ∥the Virginia Tech Center for Drug Discovery, Virginia Tech , Blacksburg, Virginia 24061, United States
| | - Marion F Ehrich
- Department of Chemistry, ‡Department of Chemical Engineering, §Virginia-Maryland College of Veterinary Medicine, and ∥the Virginia Tech Center for Drug Discovery, Virginia Tech , Blacksburg, Virginia 24061, United States
| | - David G I Kingston
- Department of Chemistry, ‡Department of Chemical Engineering, §Virginia-Maryland College of Veterinary Medicine, and ∥the Virginia Tech Center for Drug Discovery, Virginia Tech , Blacksburg, Virginia 24061, United States
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23
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Cho N, Du Y, Valenciano AL, Fernández-Murga ML, Goetz M, Clement J, Cassera MB, Kingston DGI. Antiplasmodial alkaloids from bulbs of Amaryllis belladonna Steud. Bioorg Med Chem Lett 2018; 28:40-42. [PMID: 29162457 PMCID: PMC5753767 DOI: 10.1016/j.bmcl.2017.11.021] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Revised: 11/08/2017] [Accepted: 11/10/2017] [Indexed: 10/18/2022]
Abstract
A bioassay-guided fractionation and chemical investigation of Amaryllis belladonna Steud. bulbs resulted in the isolation and identification of the new crinane alkaloid 1,4-dihydroxy-3-methoxy powellan (1), along with the 3 known crinane alkaloids 2-4 and the two lycorane alkaloids 5-6. The structures were elucidated by interpretation of combined HR-ESIMS, CD and 2D NMR spectroscopic data. Among these isolated compounds the lycorane-type alkaloid acetylcaranine (5) exhibited strong antiplasmodial activity, while compounds 3 and 4 were moderately active, and compounds 1 and 6 were inactive.
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Affiliation(s)
- Namki Cho
- Department of Chemistry and Virginia Tech Center for Drug Discovery, M/C 0212, Virginia Tech, Blacksburg, VA 24061, United States
| | - Yongle Du
- Department of Chemistry and Virginia Tech Center for Drug Discovery, M/C 0212, Virginia Tech, Blacksburg, VA 24061, United States
| | - Ana Lisa Valenciano
- Department of Biochemistry and Molecular Biology, and Center for Tropical and Emerging Global Diseases (CTEGD), University of Georgia, Athens, GA 30602, United States
| | | | - Michael Goetz
- Natural Products Discovery Institute, 3805 Old Easton Road, Doylestown, PA 18902, United States
| | - Jason Clement
- Natural Products Discovery Institute, 3805 Old Easton Road, Doylestown, PA 18902, United States
| | - Maria B Cassera
- Department of Biochemistry and Molecular Biology, and Center for Tropical and Emerging Global Diseases (CTEGD), University of Georgia, Athens, GA 30602, United States
| | - David G I Kingston
- Department of Chemistry and Virginia Tech Center for Drug Discovery, M/C 0212, Virginia Tech, Blacksburg, VA 24061, United States.
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24
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Du Y, Abedi AK, Valenciano AL, Fernández-Murga ML, Cassera MB, Rasamison VE, Applequist WL, Miller JS, Kingston DGI. Isolation of the New Antiplasmodial Butanolide, Malleastrumolide A, from Malleastrum sp. (Meliaceae) from Madagascar. Chem Biodivers 2017; 14. [PMID: 28817228 DOI: 10.1002/cbdv.201700331] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Accepted: 08/15/2017] [Indexed: 12/28/2022]
Abstract
An extract of Malleastrum sp. (Meliaceae) collected in Madagascar by the Madagascar International Cooperative Biodiversity Group was found to have antimalarial activity, with an IC50 value between 2.5 and 5 μg ml-1 . After purification by liquid-liquid partition, chromatography on a Diaion open column, C18 SPE and C18 reversed phase HPLC, the new butanolide, malleastrumolide A, was isolated. The structure of malleastrumolide A was determined by mass spectrometry, NMR, and ECD. The double bond position was determined by cross-metathesis and mass spectrometry. The compound has antiproliferative activity against the A2780 ovarian cancer cell line with an IC50 value of 17.4 μm and antiplasmodial activity against the drug-resistant Dd2 strain of Plasmodium falciparum with an IC50 value of 2.74 μm.
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Affiliation(s)
- Yongle Du
- Department of Chemistry and Virginia Tech Center for Drug Discovery, M/C 0212, Virginia Tech, Blacksburg, VA, 24061, USA
| | - Alexander K Abedi
- Department of Chemistry and Virginia Tech Center for Drug Discovery, M/C 0212, Virginia Tech, Blacksburg, VA, 24061, USA
| | - Ana Lisa Valenciano
- Department of Biochemistry and Molecular Biology, Center for Tropical and Emerging Global Diseases (CTEGD), University of Georgia, Athens, GA, 30602, USA
| | - Maria L Fernández-Murga
- Department of Biochemistry and Virginia Tech Center for Drug Discovery, M/C 0308, Virginia Tech, Blacksburg, VA, 24061, USA
| | - Maria B Cassera
- Department of Biochemistry and Molecular Biology, Center for Tropical and Emerging Global Diseases (CTEGD), University of Georgia, Athens, GA, 30602, USA.,Department of Biochemistry and Virginia Tech Center for Drug Discovery, M/C 0308, Virginia Tech, Blacksburg, VA, 24061, USA
| | - Vincent E Rasamison
- Centre National d'Application des Recherches Pharmaceutiques, B.P 702, 101, Antananarivo, Madagascar
| | | | - James S Miller
- Missouri Botanical Garden, P.O. Box 299, St. Louis, MO, 63166-0299, USA
| | - David G I Kingston
- Department of Chemistry and Virginia Tech Center for Drug Discovery, M/C 0212, Virginia Tech, Blacksburg, VA, 24061, USA
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25
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Latif A, Du Y, Dalal SR, Fernández-Murga ML, Merino EF, Cassera MB, Goetz M, Kingston DGI. Bioactive Neolignans and Other Compounds from Magnolia grandiflora L.: Isolation and Antiplasmodial Activity. Chem Biodivers 2017. [PMID: 28621040 DOI: 10.1002/cbdv.201700209] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Bioassay-guided fractionation of a methanol extract of Magnolia grandiflora against Plasmodium falciparum yielded two new (1 and 2) and six known (3 - 8) bioactive compounds. The structures of the new compounds were assigned by mass spectrometric and 1D- and 2D-NMR data. Known compounds were identified by comparison of 1 H-NMR and MS data with literature data. The two known neolignans 3 and 4 showed moderate antiplasmodial activity with the IC50 values of 2.8 ± 0.1 and 3.4 ± 0.1 μm, respectively. Weak antiplasmodial activity was recorded for compounds 1, 2, 5, 6, 7, and 8, with the IC50 values of 38 ± 2, 23 ± 2, 16.5 ± 0.2, 86 ± 1, 44 ± 4, and 114 ± 9 μm, respectively.
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Affiliation(s)
- Abdul Latif
- Department of Chemistry and Virginia Tech Center for Drug Discovery, M/C 0212, Virginia Tech, Blacksburg, VA, 24061, USA
| | - Yongle Du
- Department of Chemistry and Virginia Tech Center for Drug Discovery, M/C 0212, Virginia Tech, Blacksburg, VA, 24061, USA
| | - Seema R Dalal
- Department of Biochemistry and Virginia Tech Center for Drug Discovery, M/C 0308, Virginia Tech, Blacksburg, VA, 24061, USA
| | - Maria L Fernández-Murga
- Department of Biochemistry and Virginia Tech Center for Drug Discovery, M/C 0308, Virginia Tech, Blacksburg, VA, 24061, USA
| | - Emilio F Merino
- Department of Biochemistry and Virginia Tech Center for Drug Discovery, M/C 0308, Virginia Tech, Blacksburg, VA, 24061, USA
| | - Maria B Cassera
- Department of Biochemistry and Virginia Tech Center for Drug Discovery, M/C 0308, Virginia Tech, Blacksburg, VA, 24061, USA
| | - Michael Goetz
- Natural Products Discovery Institute, 3805 Old Easton Road, Doylestown, PA, 18902, USA
| | - David G I Kingston
- Department of Chemistry and Virginia Tech Center for Drug Discovery, M/C 0212, Virginia Tech, Blacksburg, VA, 24061, USA
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26
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Presley CC, Du Y, Dalal S, Merino EF, Butler JH, Rakotonandrasana S, Rasamison VE, Cassera MB, Kingston DGI. Isolation, structure elucidation, and synthesis of antiplasmodial quinolones from Crinum firmifolium. Bioorg Med Chem 2017. [PMID: 28648491 DOI: 10.1016/j.bmc.2017.06.017] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Antiplasmodial bioassay guided fractionation of a Madagascar collection of Crinum firmifolium led to the isolation of seven compounds. Five of the seven compounds were determined to be 2-alkylquinolin-4(1H)-ones with varying side chains. Compounds 1 and 4 were determined to be known compounds with reported antiplasmodial activities, while 5 was believed to be a new branched 2-alkylquinolin-4(1H)-one, however, it was isolated in limited quantities and in admixture and therefore was synthesized to confirm its structure as a new antiplasmodial compound. Along with 5, two other new and branched compounds 6 and 7 were synthesized as well. Accompanying the five quinolones were two known compounds 2 and 3 which are inactive against Plasmodium falciparum. The isolation, structure elucidation, total synthesis, and biological evaluation of these compounds are discussed in this article.
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Affiliation(s)
- Christopher C Presley
- Department of Chemistry and Virginia Tech Center for Drug Discovery, M/C 0212, Virginia Tech, Blacksburg, VA 24061, United States
| | - Yongle Du
- Department of Chemistry and Virginia Tech Center for Drug Discovery, M/C 0212, Virginia Tech, Blacksburg, VA 24061, United States
| | - Seema Dalal
- Department of Biochemistry and Virginia Tech Center for Drug Discovery, M/C 0308, Virginia Tech, Blacksburg, VA 24061, United States
| | - Emilio F Merino
- Department of Biochemistry and Molecular Biology, and Center for Tropical and Emerging Global Diseases (CTEGD), University of Georgia, Athens, GA 30602, United States
| | - Joshua H Butler
- Department of Biochemistry and Molecular Biology, and Center for Tropical and Emerging Global Diseases (CTEGD), University of Georgia, Athens, GA 30602, United States
| | - Stéphan Rakotonandrasana
- Centre National d'Application des Recherches Pharmaceutiques, B.P 702, Antananarivo 101, Madagascar
| | - Vincent E Rasamison
- Centre National d'Application des Recherches Pharmaceutiques, B.P 702, Antananarivo 101, Madagascar
| | - Maria B Cassera
- Department of Biochemistry and Molecular Biology, and Center for Tropical and Emerging Global Diseases (CTEGD), University of Georgia, Athens, GA 30602, United States
| | - David G I Kingston
- Department of Chemistry and Virginia Tech Center for Drug Discovery, M/C 0212, Virginia Tech, Blacksburg, VA 24061, United States.
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27
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Du Y, Pearce KC, Dai Y, Krai P, Dalal S, Cassera MB, Goetz M, Crawford TD, Kingston DGI. Antiplasmodial Sesquiterpenoid Lactones from Trichospira verticillata: Structure Elucidation by Spectroscopic Methods and Comparison of Experimental and Calculated ECD Data. J Nat Prod 2017; 80:1639-1647. [PMID: 28463001 PMCID: PMC5679103 DOI: 10.1021/acs.jnatprod.7b00247] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
A dichloromethane extract of Trichospira verticillata from the Natural Products Discovery Institute was discovered to have good antiplasmodial activity (IC50 ∼5 μg/mL). After purification by liquid-liquid partition and C18 reversed-phase HPLC, four new germacranolide-type sesquiterpenoid lactones named trichospirolides A-D (1-4) were isolated. The structures of the new compounds were elucidated by analysis of their 1D and 2D NMR and MS data. The relative and absolute configurations were assigned based on a comparison of calculated and experimental ECD and UV spectra, specific rotations, internuclear distances, and coupling constants for all possible diastereomers for each compound. Among these four compounds, the conjugated dienone 1 displayed the most potent antiplasmodial activity, with an IC50 value of 1.5 μM.
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Affiliation(s)
- Yongle Du
- Department of Chemistry, M/C 0212, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Kirk C. Pearce
- Department of Chemistry, M/C 0212, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Yumin Dai
- Department of Chemistry, M/C 0212, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Priscilla Krai
- Department of Biochemistry, M/C 0346, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Seema Dalal
- Department of Biochemistry, M/C 0346, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Maria B. Cassera
- Virginia Tech Center for Drug Discovery, M/C 0212, Virginia Tech, Blacksburg, Virginia 24061, United States
- Department of Biochemistry, M/C 0346, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Michael Goetz
- Natural Products Discovery Institute, 3805 Old Easton Road, Doylestown, Pennsylvania 18902, United States
| | - T. Daniel Crawford
- Department of Chemistry, M/C 0212, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - David G. I. Kingston
- Department of Chemistry, M/C 0212, Virginia Tech, Blacksburg, Virginia 24061, United States
- Virginia Tech Center for Drug Discovery, M/C 0212, Virginia Tech, Blacksburg, Virginia 24061, United States
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28
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Applequist WL, Ratsimbason M, Kuhlman A, Rakotonandrasana S, Rasamison V, Kingston DGI. Antimalarial Use of Malagasy Plants is Poorly Correlated with Performance in Antimalarial Bioassays. Econ Bot 2017; 71:75-82. [PMID: 29129935 PMCID: PMC5677511 DOI: 10.1007/s12231-017-9373-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Bioassay screening of plant extracts can identify unique lead compounds for drug development, but the "hit rate" from random screening is very low. Targeted screening of medicinal plants has been repeatedly reported to increase the percentage of samples displaying bioactivity. Contrarily, Maranz (2012) suggested that African antimalarial plants were unsuitable sources of antimalarial drugs because high prevalence of malaria would result in rapid evolution of resistance to active compounds that directly targeted the parasite. As malaria is highly prevalent in much of Madagascar, it was of interest to determine whether Malagasy antimalarial plants would outperform randomly selected plants in conventional antimalarial assays being conducted as part of a discovery program. Of 1294 plant samples screened for antimalarial activity, 39.6% had an IC50 <50 μg/ml and 21.1% had an IC50 <20 μg/ml (the minimum to qualify as a first-pass "hit"). Ethnobotanical uses were coded at both the generic and the species level, as neither samples nor use reports in literature were always identifiable to species level. The 526 samples belonging to genera having reported uses for malaria were slightly more likely than average to display activity (44.3% with IC50 <50 μg/ml, p < .01; 23.2% with IC50 <20 μg/ml). Of these, 67 samples from individual species with documented use were still more likely to be modestly active (49.3% with IC50 <50 μg/ml), yet less likely to be highly active (17.9% with IC50 <20 μg/ml). Thus, in this specific context, ethnobotanically directed screening would not have substantially improved screening efficiency, and would have missed most of the potential hits.
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Affiliation(s)
| | - Michel Ratsimbason
- Centre National d’Application des Recherches Pharmaceutiques, Antananarivo, Madagascar
| | | | | | - Vincent Rasamison
- Centre National d’Application des Recherches Pharmaceutiques, Antananarivo, Madagascar
| | - David G. I. Kingston
- Department of Chemistry and the Virginia Tech Center for Drug Discovery, Virginia Tech, Blacksburg, VA, USA
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Zhou B, Wu Y, Dalal S, Merino EF, Liu QF, Xu CH, Yuan T, Ding J, Kingston DGI, Cassera MB, Yue JM. Nanomolar Antimalarial Agents against Chloroquine-Resistant Plasmodium falciparum from Medicinal Plants and Their Structure-Activity Relationships. J Nat Prod 2017; 80:96-107. [PMID: 27997206 PMCID: PMC5327789 DOI: 10.1021/acs.jnatprod.6b00744] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Inspired by the discovery of the antimalarial drug artemisinin from a traditional Chinese medicine (TCM), a natural product library of 44 lindenane-type sesquiterpenoids was assessed for activities against the Dd2 chloroquine-resistant strain of the malaria parasite Plasmodium falciparum. These compounds were mainly isolated from plants of the Chloranthus genus, many species of which are named "Sikuaiwa" in TCM and have long been used to treat malaria. The compounds consisted of 41 sesquiterpenoid dimers and three monomers, including the 12 new dimers 1-12 isolated from Chloranthus fortunei. The results showed that 16 dimers exhibited potent antiplasmodial activities (<100 nM); in particular, compounds 1, 14, and 19 exhibited low nanomolar activities with IC50 values ranging from 1 to 7 nM, which is comparable to the potency of artemisinin, and selectivity index values toward mammalian cells greater than 500. A comprehensive structure-activity relationship study indicated that three functional groups are essential and two motifs can be modified.
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Affiliation(s)
- Bin Zhou
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203; University of Chinese Academy of Sciences, No.19A Yuquan Road, Beijing 100049, People’s Republic of China
- University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, People’s Republic of China
| | - Yan Wu
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203; University of Chinese Academy of Sciences, No.19A Yuquan Road, Beijing 100049, People’s Republic of China
- University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, People’s Republic of China
| | - Seema Dalal
- Department of Biochemistry and the Virginia Tech Center for Drug Discovery, MC 0308, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Emilio F. Merino
- Department of Biochemistry and the Virginia Tech Center for Drug Discovery, MC 0308, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Qun-Fang Liu
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203; University of Chinese Academy of Sciences, No.19A Yuquan Road, Beijing 100049, People’s Republic of China
- University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, People’s Republic of China
| | - Cheng-Hui Xu
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203; University of Chinese Academy of Sciences, No.19A Yuquan Road, Beijing 100049, People’s Republic of China
- University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, People’s Republic of China
| | - Tao Yuan
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203; University of Chinese Academy of Sciences, No.19A Yuquan Road, Beijing 100049, People’s Republic of China
- University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, People’s Republic of China
| | - Jian Ding
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203; University of Chinese Academy of Sciences, No.19A Yuquan Road, Beijing 100049, People’s Republic of China
- University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, People’s Republic of China
| | - David G. I. Kingston
- Department of Chemistry and the Virginia Tech Center for Drug Discovery, MC 0212, Virginia Tech, Blacksburg, VA 24061, United States
| | - Maria B. Cassera
- Department of Biochemistry and the Virginia Tech Center for Drug Discovery, MC 0308, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Jian-Min Yue
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203; University of Chinese Academy of Sciences, No.19A Yuquan Road, Beijing 100049, People’s Republic of China
- University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, People’s Republic of China
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Paciotti GF, Zhao J, Cao S, Brodie PJ, Tamarkin L, Huhta M, Myer LD, Friedman J, Kingston DGI. Synthesis and Evaluation of Paclitaxel-Loaded Gold Nanoparticles for Tumor-Targeted Drug Delivery. Bioconjug Chem 2016; 27:2646-2657. [PMID: 27689882 DOI: 10.1021/acs.bioconjchem.6b00405] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The synthesis of a series of thiolated paclitaxel analogs is described as part of a novel nanomedicine program aimed at developing formulations of paclitaxel that will bind to gold nanoparticles for tumor targeted drug delivery. Preliminary evaluation of the new nanomedicine composed of 27 nm gold nanoparticles, tumor necrosis factor alpha (TNFα), thiolated polyethylene glycol (PEG-thiol), and one of several thiolated paclitaxel analogs is presented.
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Affiliation(s)
- Giulio F Paciotti
- CytImmune Sciences Inc. , 15010 Broschart Road, Rockville, Maryland 20850, United States
| | - Jielu Zhao
- Department of Chemistry and the Virginia Tech Center for Drug Discovery, Virginia Tech , Blacksburg, Virginia 24061, United States
| | - Shugeng Cao
- Department of Chemistry and the Virginia Tech Center for Drug Discovery, Virginia Tech , Blacksburg, Virginia 24061, United States
| | - Peggy J Brodie
- Department of Chemistry and the Virginia Tech Center for Drug Discovery, Virginia Tech , Blacksburg, Virginia 24061, United States
| | - Lawrence Tamarkin
- CytImmune Sciences Inc. , 15010 Broschart Road, Rockville, Maryland 20850, United States
| | - Marja Huhta
- CytImmune Sciences Inc. , 15010 Broschart Road, Rockville, Maryland 20850, United States
| | - Lonnie D Myer
- CytImmune Sciences Inc. , 15010 Broschart Road, Rockville, Maryland 20850, United States
| | - Jay Friedman
- CytImmune Sciences Inc. , 15010 Broschart Road, Rockville, Maryland 20850, United States
| | - David G I Kingston
- Department of Chemistry and the Virginia Tech Center for Drug Discovery, Virginia Tech , Blacksburg, Virginia 24061, United States
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Rasamison VE, Brodie PJ, Merino EF, Cassera MB, Ratsimbason MA, Rakotonandrasana S, Rakotondrafara A, Rafidinarivo E, Kingston DGI, Rakotondraibe HL. Furoquinoline Alkaloids and Methoxyflavones from the Stem Bark of Melicope madagascariensis (Baker) T.G. Hartley. Nat Prod Bioprospect 2016; 6:261-265. [PMID: 27655634 PMCID: PMC5080208 DOI: 10.1007/s13659-016-0106-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Accepted: 08/30/2016] [Indexed: 06/06/2023]
Abstract
Melicope madagascariensis (Rutaceae) is an endemic plant species of Madagascar that was first classified as a member of the genus Euodia J. R. & G. Forst (Rutaceae) under the scientific name Euodia madagascariensis Baker. Based on morphological characteristics, Thomas Gordon Hartley taxonomically revised E. madagascariensis Baker to be M. madagascariensis (Baker) T.G. Hartley. Chemotaxonomical studies have long been used to help the identification and confirmation of taxonomical classification of plant species and botanicals. Aiming to find more evidences to support the taxonomical revision performed on E. madagascariensis, we carried out phytochemical investigation of two samples of the plant. Fractionation of the ethanol extracts prepared from two stem bark samples of M. madagascariensis (Baker) T.G. Hartley led to the isolation of seven known furoquinoline alkaloids 1-7 and two known methoxyflavones 8 and 9. The presence of furoquinoline alkaloids and methoxyflavones in the title species is in agreement with its taxonomic transfer from Euodia to Melicope. Antiprotozoal evaluation of the isolated compounds showed that 6-methoxy-7-hydroxydictamnine (heliparvifoline, 3) showed weak antimalarial activity (IC50 = 35 µM) against the chloroquine-resistant strain Dd2 of Plasmodium falciparum. Skimmianine (4) displayed moderate cytotoxicity with IC50 value of 1.5 µM against HT-29 colon cancer cell line whereas 3,5-dihydroxy-3',4',7-trimethoxyflavone (9) was weakly active in the same assay (IC50 = 13.9 µM).
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Affiliation(s)
- Vincent E Rasamison
- Centre National d'Application de Recherches Pharmaceutiques, B.P. 702, 101, Antananarivo, Madagascar
| | - Peggy J Brodie
- Department of Chemistry and the Virginia Tech Center for Drug Discovery, M/C 0212, Virginia Tech, Blacksburg, VA, 24061, USA
| | - Emilio F Merino
- Department of Biochemistry and the Virginia Tech Center for Drug Discovery, M/C 0308, Virginia Tech, Blacksburg, VA, 24061, USA
| | - Maria B Cassera
- Department of Biochemistry and the Virginia Tech Center for Drug Discovery, M/C 0308, Virginia Tech, Blacksburg, VA, 24061, USA
| | - Michel A Ratsimbason
- Centre National d'Application de Recherches Pharmaceutiques, B.P. 702, 101, Antananarivo, Madagascar
| | - Stephan Rakotonandrasana
- Centre National d'Application de Recherches Pharmaceutiques, B.P. 702, 101, Antananarivo, Madagascar
| | | | - Elie Rafidinarivo
- Institut Supérieur de Technologie, B.P. 8122, 101, Antananarivo, Madagascar
| | - David G I Kingston
- Department of Chemistry and the Virginia Tech Center for Drug Discovery, M/C 0212, Virginia Tech, Blacksburg, VA, 24061, USA
| | - Harinantenaina L Rakotondraibe
- Division of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The Ohio State University, Columbus, OH, 43210, USA.
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Presley CC, Krai P, Dalal S, Su Q, Cassera M, Goetz M, Kingston DGI. New potently bioactive alkaloids from Crinum erubescens. Bioorg Med Chem 2016; 24:5418-5422. [PMID: 27624525 DOI: 10.1016/j.bmc.2016.08.058] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Revised: 08/24/2016] [Accepted: 08/29/2016] [Indexed: 11/28/2022]
Abstract
Antimalarial bioassay-guided fractionation of the swamp lily Crinum erubescens led to the isolation of four compounds with potent antiplasmodial activity. Compounds 1 and 2 were determined from their spectroscopic data to be the known pesticidal compound cripowellin A and the known pesticidal and antiproliferative compound cripowellin B. 1D and 2D-NMR techniques were used to determine the identities of 3 and 4 as the new compounds cripowellin C and D. A fifth compound was identified as the known alkaloid hippadine, which was inactive against Plasmodium falciparum. The antiplasmodial IC50 values of compounds 1-4 were determined to be 30±2, 180±20, 26±2, and 260±20nM, respectively, and their antiproliferative IC50 values against the A2780 human ovarian cancer cell line were 11.1±0.4, 16.4±0.1, 25±2, and 28±1nM.
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Affiliation(s)
- Christopher C Presley
- Department of Chemistry and Virginia Tech Center for Drug Discovery, M/C 0212, Virginia Tech, Blacksburg, VA 24061, United States
| | - Priscilla Krai
- Department of Biochemistry and Virginia Tech Center for Drug Discovery, M/C 0308, Virginia Tech, Blacksburg, VA 24061, United States
| | - Seema Dalal
- Department of Biochemistry and Virginia Tech Center for Drug Discovery, M/C 0308, Virginia Tech, Blacksburg, VA 24061, United States
| | - Qingxi Su
- Department of Chemistry and Virginia Tech Center for Drug Discovery, M/C 0212, Virginia Tech, Blacksburg, VA 24061, United States
| | - Maria Cassera
- Department of Biochemistry and Virginia Tech Center for Drug Discovery, M/C 0308, Virginia Tech, Blacksburg, VA 24061, United States
| | - Michael Goetz
- Natural Products Discovery Institute, 2805 Old Easton Road, Doylestown, PA 18902, United States
| | - David G I Kingston
- Department of Chemistry and Virginia Tech Center for Drug Discovery, M/C 0212, Virginia Tech, Blacksburg, VA 24061, United States.
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Eaton A, Dalal S, Cassera MB, Zhao S, Kingston DGI. Synthesis and Antimalarial Activity of Mallatojaponin C and Related Compounds. J Nat Prod 2016; 79:1679-1683. [PMID: 27228055 PMCID: PMC4924580 DOI: 10.1021/acs.jnatprod.6b00347] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Indexed: 06/05/2023]
Abstract
The phloroglucinol mallotojaponin C (1) from Mallotus oppositifolius, which was previously shown by us to have both antiplasmodial and cytocidal activities against the malaria parasite Plasmodium falciparum, was synthesized in three steps from 2',4',6'-trihydroxyacetophenone, and various derivatives were synthesized in an attempt to improve the bioactivity of this class of compounds. Two derivatives, the simple prenylated phloroglucinols 12 and 13, were found to have comparable antiplasmodial activities to that of mallotojaponin C.
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Affiliation(s)
- Alexander
L. Eaton
- Department of Chemistry and the
Virginia Tech Center for Drug Discovery and Department of
Biochemistry and the Virginia Tech Center for Drug Discovery, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Seema Dalal
- Department of Chemistry and the
Virginia Tech Center for Drug Discovery and Department of
Biochemistry and the Virginia Tech Center for Drug Discovery, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - M. Belen Cassera
- Department of Chemistry and the
Virginia Tech Center for Drug Discovery and Department of
Biochemistry and the Virginia Tech Center for Drug Discovery, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Shuqi Zhao
- Department of Chemistry and the
Virginia Tech Center for Drug Discovery and Department of
Biochemistry and the Virginia Tech Center for Drug Discovery, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - David G. I. Kingston
- Department of Chemistry and the
Virginia Tech Center for Drug Discovery and Department of
Biochemistry and the Virginia Tech Center for Drug Discovery, Virginia Tech, Blacksburg, Virginia 24061, United States
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Su Q, Dalal S, Goetz M, Cassera MB, Kingston DGI. Antiplasmodial phloroglucinol derivatives from Syncarpia glomulifera. Bioorg Med Chem 2016; 24:2544-2548. [PMID: 27112454 PMCID: PMC4860949 DOI: 10.1016/j.bmc.2016.04.020] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Revised: 03/30/2016] [Accepted: 04/09/2016] [Indexed: 10/22/2022]
Abstract
Bioassay guided fractionation of a MeOH extract of the stem bark of Syncarpia glomulifera (Myrtaceae) led to the isolation of the two new phloroglucinol derivatives (±)-rhodomyrtosone F (1) and (±)-calliviminone I (2), the three known triterpenes, betulinic acid (3), ursolic acid-3-acetate (4), and ursolic acid (5), and 1-(2,4,6-trihydroxyphenyl)-1-hexanone (6). Compound 1 exhibited strong antiplasmodial activity, while compounds 2-4 were moderately active and 5 and 6 were inactive in this assay. The structures of 1 and 2 were elucidated based on analyses of their mass spectrometric data, 1D and 2D NMR spectra, and comparison with related compounds.
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Affiliation(s)
- Qingxi Su
- Department of Chemistry and Virginia Tech Center for Drug Discovery, Virginia Tech, Blacksburg, VA 24061, United States
| | - Seema Dalal
- Department of Biochemistry and Virginia Tech Center for Drug Discovery, Virginia Tech, Blacksburg, VA 24061, United States
| | - Michael Goetz
- Natural Products Discovery Institute, Doylestown, PA 18902, United States
| | - Maria B Cassera
- Department of Biochemistry and Virginia Tech Center for Drug Discovery, Virginia Tech, Blacksburg, VA 24061, United States
| | - David G I Kingston
- Department of Chemistry and Virginia Tech Center for Drug Discovery, Virginia Tech, Blacksburg, VA 24061, United States.
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Su Q, Dalal S, Goetz M, Cassera MB, Kingston DGI. New Antiplasmodial Diterpenes from Gutierrezia sarothrae. Nat Prod Commun 2016; 11:719-721. [PMID: 27534100 PMCID: PMC5352980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023] Open
Abstract
Bioassay guided fractionation of the MeOH extract of the plant Gutierrezia sarothrae (Asteraceae) using an assay for antiplasmodial activity against the drug-resistant Dd2 strain of Plasmodium falciparum led to the isolation of the two new diterpenes 3α-angeloyloxy-15-hydroxylabda-7,13-dien-16,15-olid-18-oic acid (1) and 3α-angeloyloxy-15-methoxylabda-7,13-dien-16,15-olid-18-oic acid (2). The structures of 1 and 2 were elucidated by interpretation of 1D and 2D NMR spectroscopic data, mass spectrometry, and comparison with the data of related compounds reported in the literature. Compound 1 exhibited moderate antiplasmodial activity with an IC50 values of 10.4 ± 4.3 μM.
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Eaton AL, Rakotondraibe LH, Brodie PJ, Goetz M, Kingston DGI. Correction to Antiproliferative Trihydroxyalkylcyclohexenones from Pleiogynium timoriense. J Nat Prod 2016; 79:451. [PMID: 26836948 PMCID: PMC5104423 DOI: 10.1021/acs.jnatprod.6b00073] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
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Su Q, Brodie PJ, Liu Y, Miller JS, Andrianjafy NM, Antsiferana R, Rasamison VE, Kingston DGI. Antiproliferative Triterpenoid Saponins from Leptaulus citroides Baill. from the Madagascar Rain Forest. Nat Prod Bioprospect 2016; 6:31-9. [PMID: 26746216 PMCID: PMC4749521 DOI: 10.1007/s13659-015-0083-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Accepted: 12/19/2015] [Indexed: 06/05/2023]
Abstract
Bioassay-guided fractionation of EtOH extracts obtained from the roots and wood of the Madagascan plant Leptaulus citroides Baill. (Cardiopteridaceae) led to the isolation of ethyl esters of three new triterpenoid saponins (1-3) and the known sesquiterpenoid cinnamosmolide (4). The structures of 1-3 were elucidated by extensive 1D and 2D NMR experiments and mass spectrometry. Compounds 1, 2, and 4 showed moderate cytotoxicity against the A2780 human ovarian cancer cell line with IC50 values of 2.8, 10.2 and 2.0 µM, respectively.
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Affiliation(s)
- Qingxi Su
- Department of Chemistry, Virginia Tech Center for Drug Discovery, M/C 0212, Virginia Tech, Blacksburg, VA, 24061, USA
| | - Peggy J Brodie
- Department of Chemistry, Virginia Tech Center for Drug Discovery, M/C 0212, Virginia Tech, Blacksburg, VA, 24061, USA
| | - Yixi Liu
- Department of Chemistry, Virginia Tech Center for Drug Discovery, M/C 0212, Virginia Tech, Blacksburg, VA, 24061, USA
| | - James S Miller
- Missouri Botanical Garden, P.O. Box 299, St. Louis, MO, 63166-0299, USA
| | | | - Rabodo Antsiferana
- Centre National d'Application des Recherches Pharmaceutiques, B.P 702, 101 Antananarivo, Madagascar
| | - Vincent E Rasamison
- Centre National d'Application des Recherches Pharmaceutiques, B.P 702, 101 Antananarivo, Madagascar
| | - David G I Kingston
- Department of Chemistry, Virginia Tech Center for Drug Discovery, M/C 0212, Virginia Tech, Blacksburg, VA, 24061, USA.
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Presley CC, Rakotondraibe LH, Brodie PJ, Callmander MW, Randrianaivo R, Rasamison VE, Rakotobe E, Kingston DGI. A Synthetic Butenolide Diterpene is now a Natural Product Isolated from Metaporana sericosepala, a Plant from the Madagascar Dry Forest [1a]. Nat Prod Commun 2015. [DOI: 10.1177/1934578x1501000904] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Antiproliferative bioassay-guided fractionation of the ethanolic extract of the endemic Madagascan plant Metaporana sericosepala led to the first natural product isolation of a butenolide diterpene, which was synthesized during an anti-inflammatory study in 1988. The structure of the compound was elucidated as 3-homofarnesyl-4-hydroxybutenolide (1) by analysis of its spectroscopic data, including 1D- and 2D-NMR data and chemical evidence. The once synthetic compound can now also be considered as a natural product. Compound 1 had modest antiproliferative activity towards the A2780 ovarian cancer cell line with an IC50 value of 8 μM.
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Affiliation(s)
| | - L. Harinantenaina Rakotondraibe
- Department of Chemistry, M/C 0212, Virginia Tech, Blacksburg, Virginia 24061-0212, USA
- College of Pharmacy, Division of Medicinal Chemistry and Pharmacognosy, The Ohio State University, Columbus, OH 43210, USA
| | - Peggy J. Brodie
- Department of Chemistry, M/C 0212, Virginia Tech, Blacksburg, Virginia 24061-0212, USA
| | | | | | - Vincent E. Rasamison
- Centre National d'Application des Recherches Pharmaceutiques, B.P 702, Antananarivo 101, Madagascar
| | - Etienne Rakotobe
- Centre National d'Application des Recherches Pharmaceutiques, B.P 702, Antananarivo 101, Madagascar
| | - David G. I. Kingston
- Department of Chemistry, M/C 0212, Virginia Tech, Blacksburg, Virginia 24061-0212, USA
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Presley CC, Rakotondraibe LH, Brodie PJ, Callmander MW, Randrianaivo R, Rasamison VE, Rakotobe E, Kingston DGI. A Synthetic Butenolide Diterpene is now a Natural Product Isolated from Metaporana sericosepala, a Plant from the Madagascar Dry Forest. Nat Prod Commun 2015; 10:1505-1507. [PMID: 26435765 PMCID: PMC4587655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023] Open
Abstract
Antiproliferative bioassay-guided fractionation of the ethanolic extract of the endemic Madagascan plant Metaporana sericosepala led to the first natural product isolation of a butenolide diterpene, which was synthesized during an anti-inflammatory study in 1988. The structure of the compound was elucidated as 3-homofarnesyl-4-hydroxybutenolide (1) by analysis of its spectroscopic data, including 1D- and 2D-NMR data and chemical evidence. The once synthetic compound can now also be considered as a natural product. Compound 1 had modest antiproliferative activity towards the A2780 ovarian cancer cell line,with an IC50 value of 8 µM.
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Affiliation(s)
| | | | - Peggy J. Brodie
- Department of Chemistry, M/C 0212, Virginia Tech,
Blacksburg, Virginia 24061-0212, USA
| | | | | | - Vincent E. Rasamison
- Centre National d’Application des Recherches
Pharmaceutiques, B.P 702, Antananarivo 101, Madagascar
| | - Etienne Rakotobe
- Centre National d’Application des Recherches
Pharmaceutiques, B.P 702, Antananarivo 101, Madagascar
| | - David G. I. Kingston
- Department of Chemistry, M/C 0212, Virginia Tech,
Blacksburg, Virginia 24061-0212, USA
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40
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Liu Y, Wiedle CH, Brodie PJ, Callmander MW, Rakotondrajaona R, Rakotobe E, Rasamison VE, Kingston DGI. Antiproliferative Diterpenes from a Malleastrum sp. from the Madagascar dry forest. Nat Prod Commun 2015; 10:1509-1512. [PMID: 26594745 PMCID: PMC4689295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023] Open
Abstract
An ethanol extract of leaves of the plant species Malleastrum sp. collected in northern Madagascar afforded the new clerodane diterpene 18-oxo-cleroda-3,13-dien-16,15-olide (1), together with the three known clerodane diterpenes 16,18-dihydroxykolavenic acid lactone (2), solidagolactone (3) and (-)-kolavenol (4), and the known labdane diterpene 3-oxo-ent-Iabda-8(17),13-dien-15,16-olide (5). Compounds 1, 3, and 4 showed moderate antiproliferative activities against the A2780 ovarian cancer cell line, with the IC50 values of 3.01 ± 0.8, 7.84 ± 0.2, and 17.9 ± 3 µM, respectively. The structure elucidations of all compounds were carried out based on analysis of NMR and mass spectroscopic data. The relative stereochemistry of compound 1 was determined by NOESY NMR spectrum.
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Affiliation(s)
- Yixi Liu
- Department of Chemistry and Virginia Tech Center for Drug Discovery,
M/C 0212, Virginia Tech, Blacksburg, VA 24061, USA
| | - C. Houston Wiedle
- Department of Chemistry and Virginia Tech Center for Drug Discovery,
M/C 0212, Virginia Tech, Blacksburg, VA 24061, USA
| | - Peggy J. Brodie
- Department of Chemistry and Virginia Tech Center for Drug Discovery,
M/C 0212, Virginia Tech, Blacksburg, VA 24061, USA
| | | | - R. Rakotondrajaona
- Centre National d’Application des Recherches Pharmaceutiques,
B.P 702, Antananarivo 101, Madagascar
| | - Etienne Rakotobe
- Centre National d’Application des Recherches Pharmaceutiques,
B.P 702, Antananarivo 101, Madagascar
| | - Vincent E. Rasamison
- Centre National d’Application des Recherches Pharmaceutiques,
B.P 702, Antananarivo 101, Madagascar
| | - David G. I. Kingston
- Department of Chemistry and Virginia Tech Center for Drug Discovery,
M/C 0212, Virginia Tech, Blacksburg, VA 24061, USA
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41
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Liu Y, Wiedle CH, Brodie PJ, Callmander MW, Rakotondrajaona R, Rakotobe E, Rasamison VE, Kingston DGI. Antiproliferative Diterpenes from a Malleastrum sp. from the Madagascar dry forest [1]. Nat Prod Commun 2015. [DOI: 10.1177/1934578x1501000905] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
An ethanol extract of leaves of the plant species Malleastrum sp. collected in northern Madagascar afforded the new clerodane diterpene 18-oxo-cleroda-3,13-dien-16,15-olide (1), together with the three known clerodane diterpenes 16,18-dihydroxykolavenic acid lactone (2), solidagolactone (3) and (-)-kolavenol (4), and the known labdane diterpene 3-oxo-ent-Iabda-8(17),13-dien-15,16-olide (5). Compounds 1, 3, and 4 showed moderate antiproliferative activities against the A2780 ovarian cancer cell line, with the IC50 values of 3.01 ± 0.8, 7.84 ± 0.2, and 17.9 ± 3 μM, respectively. The structure elucidations of all compounds were carried out based on analysis of NMR and mass spectroscopic data. The relative stereochemistry of compound 1 was determined by NOESY NMR spectrum.
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Affiliation(s)
- Yixi Liu
- Department of Chemistry and Virginia Tech Center for Drug Discovery, M/C 0212, Virginia Tech, Blacksburg, VA 24061, USA
| | - C. Houston Wiedle
- Department of Chemistry and Virginia Tech Center for Drug Discovery, M/C 0212, Virginia Tech, Blacksburg, VA 24061, USA
| | - Peggy J. Brodie
- Department of Chemistry and Virginia Tech Center for Drug Discovery, M/C 0212, Virginia Tech, Blacksburg, VA 24061, USA
| | | | - R. Rakotondrajaona
- Centre National d'Application des Recherches Pharmaceutiques, B.P 702, Antananarivo 101, Madagascar
| | - Etienne Rakotobe
- Centre National d'Application des Recherches Pharmaceutiques, B.P 702, Antananarivo 101, Madagascar
| | - Vincent E. Rasamison
- Centre National d'Application des Recherches Pharmaceutiques, B.P 702, Antananarivo 101, Madagascar
| | - David G. I. Kingston
- Department of Chemistry and Virginia Tech Center for Drug Discovery, M/C 0212, Virginia Tech, Blacksburg, VA 24061, USA
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42
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Harinantenaina Rakotondraibe L, Rasolomampianina R, Park HY, Li J, Slebodnik C, Brodie PJ, Blasiak LC, Hill R, TenDyke K, Shen Y, Cassera MB, Rejo F, Kingston DGI. Antiproliferative and antiplasmodial compounds from selected Streptomyces species. Bioorg Med Chem Lett 2015; 25:5646-9. [PMID: 26508548 DOI: 10.1016/j.bmcl.2015.07.103] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2015] [Revised: 07/27/2015] [Accepted: 07/29/2015] [Indexed: 11/29/2022]
Abstract
In continuation of our ongoing search for bioactive compounds from microbial extracts, we performed antiproliferative and/or antimalarial assays on extracts of 806 microbial species isolated from Madagascan marine organisms, on 1317 species isolated from Madagascan soil samples and on a Streptomyces species (S.4) from a marine sponge collected from the Florida Keys. This work identified active extracts from four Streptomyces isolates (S.1, S.2, S.3 and S.4). The extracts of Streptomyces S.1 and S.2 showed antiproliferative activity against the A2780 ovarian cancer cell line, while those of S.3 and S.4 displayed both antiproliferative and antimalarial activity. Bioassay-guided fractionation coupled with dereplication of the active extracts led to the identification and isolation of nonactin (1), monactin (2), dinactin (3), ±-nonactic acid (4), toyocamycin (5), piperafizine A (6) and a new dipeptide named xestostreptin (7). The structures of all isolated compounds 1-7 were elucidated by analyses of their NMR spectroscopic and mass spectrometric data, and were confirmed by comparison with the data reported in the literature. Compound 6 was crystallized and subjected to X-ray diffraction analysis to confirm its structure as piperafizine A (6). Compounds 1-3 displayed strong antiproliferative activity against A2780 ovarian cancer cells (IC50 values of 0.1, 0.13 and 0.2 μM, respectively), A2058 melanoma cells (IC50 values of 0.2, 0.02 and 0.02 μM, respectively), and H522-T1 non small-cell cancer lung cells (IC50 values of 0.1, 0.01 and 0.01 μM, respectively), while compounds 4 and 7 exhibited weak antiplasmodial activity against the Dd2 strain of Plasmodium falciparum, with IC50 values of 6.5 and 50 μM, respectively.
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Affiliation(s)
- L Harinantenaina Rakotondraibe
- Division of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The Ohio State University, Columbus, OH 43210, United States.
| | - Rado Rasolomampianina
- Centre National de Recherches sur l'environnement, B.P. 1739, Antananarivo 101, Madagascar
| | - Hyun-Young Park
- Division of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The Ohio State University, Columbus, OH 43210, United States
| | - Jie Li
- Division of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The Ohio State University, Columbus, OH 43210, United States
| | - Carla Slebodnik
- Department of Chemistry and the Virginia Tech Center for Drug Discovery, M/C 0212, Virginia Tech, Blacksburg, VA 24061, United States
| | - Peggy J Brodie
- Department of Chemistry and the Virginia Tech Center for Drug Discovery, M/C 0212, Virginia Tech, Blacksburg, VA 24061, United States
| | - Leah C Blasiak
- Center of Marine Biotechnology, University of Maryland Biotechnology Institute, Baltimore, Maryland, MD 21201, United States
| | - Russel Hill
- Center of Marine Biotechnology, University of Maryland Biotechnology Institute, Baltimore, Maryland, MD 21201, United States
| | - Karen TenDyke
- Eisai Inc., 4 Corporate Drive, Andover, MA 01810, United States
| | - Yongchun Shen
- Eisai Inc., 4 Corporate Drive, Andover, MA 01810, United States
| | - Maria B Cassera
- Department of Biochemistry and Virginia Tech Center for Drug Discovery, M/C 0308, Virginia Tech, Blacksburg, VA 24061, United States
| | - Felicite Rejo
- Centre National de Recherches sur l'environnement, B.P. 1739, Antananarivo 101, Madagascar
| | - David G I Kingston
- Department of Chemistry and the Virginia Tech Center for Drug Discovery, M/C 0212, Virginia Tech, Blacksburg, VA 24061, United States
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43
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Abstract
Bioassay-guided fractionation of an EtOH extract of the roots of the plant Apoplanesia paniculata (Fabaceae) led to the isolation of the three known compounds amorphaquinone (1), pendulone (2), and melilotocarpan C (3), and the two new pterocarpans 4 and 5. Compounds 1 and 2 exhibited good antiplasmodial activity with IC50 values of 5.7 ± 1.5 and 7.0 ± 0.8 µM, respectively. Compound 3 exhibited weak antiplasmodial activity (41.8 ± 5.2 µM), while compounds 4 and 5 were inactive. Compound 6 was synthesized to confirm the structure of 5, and it showed enhanced antiplasmodial activity (15.8 ± 1.4 µM) compared to its analogues 3-5.
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Affiliation(s)
- Qingxi Su
- Department of Chemistry and Virginia Tech Center for Drug Discovery, Virginia Tech, Blacksburg, Virginia, United States
| | - Priscilla Krai
- Department of Biochemistry and Virginia Tech Center for Drug Discovery, Virginia Tech, Blacksburg, Virginia, United States
| | - Michael Goetz
- Natural Products Discovery Institute, Doylestown, PA, 18902, US
| | - Maria B. Cassera
- Department of Biochemistry and Virginia Tech Center for Drug Discovery, Virginia Tech, Blacksburg, Virginia, United States
| | - David G. I. Kingston
- Department of Chemistry and Virginia Tech Center for Drug Discovery, Virginia Tech, Blacksburg, Virginia, United States
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Liu Y, Young K, Rakotondraibe LH, Brodie PJ, Wiley JD, Cassera M, Callmander MW, Rakotondrajaona R, Rakotobe E, Rasamison VE, TenDyke K, Shen Y, Kingston DGI. Antiproliferative Compounds from Cleistanthus boivinianus from the Madagascar Dry Forest. J Nat Prod 2015; 78:1543-1547. [PMID: 26091020 PMCID: PMC4517784 DOI: 10.1021/np501020m] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Indexed: 06/04/2023]
Abstract
The two new lignans 3α-O-(β-D-glucopyranosyl)desoxypodophyllotoxin (1) and 4-O-(β-D-glucopyranosyl)dehydropodophyllotoxin (2) were isolated from Cleistanthus boivinianus, together with the known lignans deoxypicropodophyllotoxin (3), (±)-β-apopicropodophyllin (4), (-)-desoxypodophyllotoxin (5), (-)-yatein (6), and β-peltatin-5-O-β-D-glucopyranoside (7). The structures of all compounds were characterized by spectroscopic techniques. Compounds 1, 4, and 5 showed potent antiproliferative activities against the A2780 ovarian cancer cell line, with IC50 values of 33.0 ± 3.6, 63.1 ± 6.7, and 230 ± 1 nM, respectively. Compounds 2 and 7 showed only modest A2780 activities, with IC50 values of 2.1 ± 0.3 and 4.9 ± 0.1 μM, respectively, while compounds 3 and 6 had IC50 values of >10 μM. Compound 1 also had potent antiproliferative activity against the HCT-116 human colon carcinoma cell line, with an IC50 value of 20.5 nM, and compound 4 exhibited modest antiproliferative activity against the A2058 human caucasian metastatic melanoma and MES-SA human uterine sarcoma cell lines, with IC50 values of 4.6 and 4.0 μM, respectively.
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Affiliation(s)
- Yixi Liu
- Department of Chemistry and the
Virginia Tech Center for Drug Discovery and Department of
Biochemistry and Virginia Tech Center for Drug Discovery, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Kelly Young
- Department of Chemistry and the
Virginia Tech Center for Drug Discovery and Department of
Biochemistry and Virginia Tech Center for Drug Discovery, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - L. Harinantenaina Rakotondraibe
- Department of Chemistry and the
Virginia Tech Center for Drug Discovery and Department of
Biochemistry and Virginia Tech Center for Drug Discovery, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Peggy J. Brodie
- Department of Chemistry and the
Virginia Tech Center for Drug Discovery and Department of
Biochemistry and Virginia Tech Center for Drug Discovery, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Jessica D. Wiley
- Department of Chemistry and the
Virginia Tech Center for Drug Discovery and Department of
Biochemistry and Virginia Tech Center for Drug Discovery, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Maria
B. Cassera
- Department of Chemistry and the
Virginia Tech Center for Drug Discovery and Department of
Biochemistry and Virginia Tech Center for Drug Discovery, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Martin W. Callmander
- Missouri
Botanical Garden, P.O. Box 299, St. Louis, Missouri 63166, United States
| | - R. Rakotondrajaona
- Centre
National d’Application des Recherches Pharmaceutiques, B.P. 702, Antananarivo 101, Madagascar
| | - Etienne Rakotobe
- Centre
National d’Application des Recherches Pharmaceutiques, B.P. 702, Antananarivo 101, Madagascar
| | - Vincent E. Rasamison
- Centre
National d’Application des Recherches Pharmaceutiques, B.P. 702, Antananarivo 101, Madagascar
| | - Karen TenDyke
- Eisai Inc., 4 Corporate
Drive, Andover, Massachusetts 01810, United States
| | - Yongchun Shen
- Eisai Inc., 4 Corporate
Drive, Andover, Massachusetts 01810, United States
| | - David G. I. Kingston
- Department of Chemistry and the
Virginia Tech Center for Drug Discovery and Department of
Biochemistry and Virginia Tech Center for Drug Discovery, Virginia Tech, Blacksburg, Virginia 24061, United States
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45
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Eaton A, Rakotondraibe LH, Brodie PJ, Goetz M, Kingston DGI. Antiproliferative Trihydroxyalkylcyclohexenones from Pleiogynium timoriense. J Nat Prod 2015; 78:1752-5. [PMID: 26132421 PMCID: PMC4517783 DOI: 10.1021/acs.jnatprod.5b00119] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Indexed: 05/26/2023]
Abstract
Investigation of a DCM extract of the bark of Pleiogynium timoriense from the former Merck collection of natural product extracts for antiproliferative activity indicated that it was active with an IC50 value of 1.3 μg/mL against the A2780 ovarian cancer cell line. Bioassay-directed fractionation of this extract yielded the three new bioactive trihydroxyalkylcyclohexenones 1-3. Their structures were determined by a combination of spectroscopic and chemical methods. Compounds 1-3 exhibited submicromolar antiproliferative activity against the A2780 human ovarian cancer cell line, with IC50 values of 0.8, 0.7, and 0.8 μM, respectively.
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Affiliation(s)
- Alexander
L. Eaton
- Department
of Chemistry, Virginia Polytechnic Institute
and State University, Blacksburg, Virginia 24061, United States
| | - L. Harinantenaina Rakotondraibe
- Division
of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The Ohio State University, Columbus, Ohio 43210, United States
| | - Peggy J. Brodie
- Department
of Chemistry, Virginia Polytechnic Institute
and State University, Blacksburg, Virginia 24061, United States
| | - Michael Goetz
- Natural
Products Discovery Institute, 3805 Old Easton Road, Doylestown, Pennsylvania 18902, United States
| | - David G. I. Kingston
- Department
of Chemistry, Virginia Polytechnic Institute
and State University, Blacksburg, Virginia 24061, United States
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46
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Liu Y, Rakotondraibe LH, Brodie PJ, Wiley JD, Cassera MB, Miller JS, Ratovoson F, Rakotobe E, Rasamison VE, Kingston DGI. Antimalarial 5,6-Dihydro-α-pyrones from Cryptocarya rigidifolia: Related Bicyclic Tetrahydro-α-Pyrones Are Artifacts1. J Nat Prod 2015; 78:1330-8. [PMID: 26042470 PMCID: PMC4485685 DOI: 10.1021/acs.jnatprod.5b00187] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/27/2015] [Indexed: 06/04/2023]
Abstract
Antimalarial bioassay-guided fractionation of an EtOH extract of the root wood of Cryptocarya rigidifolia (Lauraceae) led to the isolation of the five new 5,6-dihydro-α-pyrones cryptorigidifoliols A-E (1-5) and the six bicyclic tetrahydro-α-pyrone derivatives cryptorigidifoliols F-K (6-11). The structure elucidations of all compounds were made on the basis of the interpretation of spectroscopic data and chemical derivatization, and the relative and absolute configurations were determined by NOESY, electronic circular dichroism (ECD), and (1)H NMR analysis of α-methoxyphenylacetyl (MPA) derivatives. The bicyclic tetrahydro-α-pyrone derivatives were identified as products of acid-catalyzed intramolecular Michael addition of the 5,6-dihydro-α-pyrones in the presence of silica gel. A structure-activity relationship study suggested that the presence of an α,β-unsaturated carbonyl moiety is not essential for potent antimalarial activity.
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Affiliation(s)
- Yixi Liu
- Department
of Chemistry and the Virginia Tech Center for Drug Discovery, Virginia Tech, M/C 0212, Blacksburg, Virginia 24061, United States
| | - L. Harinantenaina Rakotondraibe
- Department
of Chemistry and the Virginia Tech Center for Drug Discovery, Virginia Tech, M/C 0212, Blacksburg, Virginia 24061, United States
| | - Peggy J. Brodie
- Department
of Chemistry and the Virginia Tech Center for Drug Discovery, Virginia Tech, M/C 0212, Blacksburg, Virginia 24061, United States
| | - Jessica D. Wiley
- Department
of Biochemistry and the Virginia Tech Center for Drug Discovery, Virginia Tech, M/C 0308, Blacksburg, Virginia 24061, United States
| | - Maria B. Cassera
- Department
of Biochemistry and the Virginia Tech Center for Drug Discovery, Virginia Tech, M/C 0308, Blacksburg, Virginia 24061, United States
| | - James S. Miller
- Missouri
Botanical Garden, P.O. Box 299, St. Louis, Missouri 63166, United States
| | - F. Ratovoson
- Missouri
Botanical Garden, Lot
VP 31 Ankadibevava, Anjohy Antananarivo 101, Madagascar
| | - Etienne Rakotobe
- Centre
National d’Application des Recherches Pharmaceutiques, B.P. 702, Antananarivo 101, Madagascar
| | - Vincent E. Rasamison
- Centre
National d’Application des Recherches Pharmaceutiques, B.P. 702, Antananarivo 101, Madagascar
| | - David G. I. Kingston
- Department
of Chemistry and the Virginia Tech Center for Drug Discovery, Virginia Tech, M/C 0212, Blacksburg, Virginia 24061, United States
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Liu Y, Cheng E, Rakotondraibe LH, Brodie PJ, Applequist W, Randrianaivo R, Rakotondrafara A, Ratsimbason M, Rasamison VE, Kingston DGI. Antiproliferative Compounds from Ocotea macrocarpa from the Madagascar Dry Forest 1. Tetrahedron Lett 2015; 56:3630-3632. [PMID: 26034338 DOI: 10.1016/j.tetlet.2015.01.172] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Bioassay-directed fractionation of an antiproliferative ethanol extract of the roots of Ocotea macrocarpa (Lauraceae) afforded the new butanolide macrocarpolide A (1), and the two new secobutanolides macrocarpolides B (2) and C (3), together with the known butanolides linderanolide B (4) and isolinderanolide (5). The structure elucidation of all compounds was carried out based on NMR and mass spectroscopic data analyses. The absolute configurations of all compounds isolated were determined by comparison of their optical rotation values with those found in literature. Compounds 1-5 showed good antiproliferative activities against the A2780 ovarian cell line, with IC50 values of 2.57 ± 0.12 (1), 1.98 ± 0.23 (2), 1.67 ± 0.05 (3), 2.43 ± 0.41 (4), and 1.65 ± 0.44 µM (5), respectively.
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Affiliation(s)
- Yixi Liu
- Department of Chemistry and the Virginia Tech Center for Drug Discovery, Virginia Tech, Blacksburg, Virginia 24061
| | - Emily Cheng
- Department of Chemistry and the Virginia Tech Center for Drug Discovery, Virginia Tech, Blacksburg, Virginia 24061
| | | | - Peggy J Brodie
- Department of Chemistry and the Virginia Tech Center for Drug Discovery, Virginia Tech, Blacksburg, Virginia 24061
| | - Wendy Applequist
- Missouri Botanical Garden, P.O. Box 299, St. Louis Missouri 63166
| | - Richard Randrianaivo
- Missouri Botanical Garden, Lot VP 31 Ankadibevava, Anjohy Antananarivo 101, Madagascar
| | | | - Michel Ratsimbason
- Centre National d'Application des Recherches Pharmaceutiques, B.P. 702, Antananarivo 101, Madagascar
| | - Vincent E Rasamison
- Centre National d'Application des Recherches Pharmaceutiques, B.P. 702, Antananarivo 101, Madagascar
| | - David G I Kingston
- Department of Chemistry and the Virginia Tech Center for Drug Discovery, Virginia Tech, Blacksburg, Virginia 24061
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48
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Kingston DGI. Special Issue of Natural Product Communications in Honor of Dr. Pawan K. Agrawal's Sixtieth Birthday. Nat Prod Commun 2015. [DOI: 10.1177/1934578x1501000602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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49
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Addo EM, Chai HB, Hymete A, Yeshak MY, Slebodnick C, Kingston DGI, Rakotondraibe LH. Antiproliferative Constituents of the Roots of Ethiopian Podocarpus falcatus and Structure Revision of 2α-Hydroxynagilactone F and Nagilactone I. J Nat Prod 2015; 78:827-35. [PMID: 25807242 DOI: 10.1021/np501062f] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Bioassay-guided fractionation using the human colorectal adenocarcinoma (HT-29) cell line of the methanol extract of dried roots of Podocarpus falcatus led to the isolation of two new type C nagilactones, 16-hydroxynagilactone F (1) and 2β,16-dihydroxynagilactone F (2), and the new totarane-type bisditerpenoid 7β-hydroxymacrophyllic acid (4), along with the seven known compounds 2β-hydroxynagilactone F (3), macrophyllic acid (5), nagilactone D (6), 15-hydroxynagilactone D (7), nagilactone I (8), inumakiol D (9), and ponasterone A (10). The structures of the new compounds were determined by 1D and 2D NMR, HRESIMS, UV, and IR and by comparison with the reported spectroscopic data of their congeners. The orientation of the C-2 hydroxy group of 3 and 8 was revised to be β based on evidence from detailed analysis of 1D and 2D NMR data and single-crystal X-ray diffraction studies. Among the isolated compounds, the nagilactones, including the new dilactones 16-hydroxynagilactone F (1) and 2β,16-dihydroxynagilactone F (2), were the most active (IC50 0.3-5.1 μM range) against the HT-29 cell line, whereas the bisditerpenoids (4 and 5) and the other known compounds 9 and 10 were inactive. The presence of the bioactive nagilactones in P. falcatus supports its traditional use.
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Affiliation(s)
- Ermias Mekuria Addo
- †Division of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The Ohio State University, Columbus, Ohio 43210, United States
- ‡Department of Pharmaceutical Chemistry and Pharmcognosy, School of Pharmacy, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia
| | - Hee-Byung Chai
- †Division of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The Ohio State University, Columbus, Ohio 43210, United States
| | - Ariaya Hymete
- ‡Department of Pharmaceutical Chemistry and Pharmcognosy, School of Pharmacy, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia
| | - Mariamawit Yonathan Yeshak
- ‡Department of Pharmaceutical Chemistry and Pharmcognosy, School of Pharmacy, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia
| | - Carla Slebodnick
- §Department of Chemistry and Virginia Tech Center for Drug Discovery, M/C 0212, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - David G I Kingston
- §Department of Chemistry and Virginia Tech Center for Drug Discovery, M/C 0212, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - L Harinantenaina Rakotondraibe
- †Division of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The Ohio State University, Columbus, Ohio 43210, United States
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50
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Eaton AL, Brodie PJ, Callmander MW, Rakotondrajaona R, Rakotobe E, Rasamison VE, Kingston DGI. Bioactive Oleanane Glycosides from Polyscias duplicata from the Madagascar Dry Forest [1]. Nat Prod Commun 2015. [DOI: 10.1177/1934578x1501000407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
As part of the International Cooperative Biodiversity Group (ICBG) program, in a search for antiproliferative compounds, an ethanol extract of Polyscias duplicata was investigated due to its antiproliferative activity against the A2780 human ovarian cell cancer line (IC50 6 μg/mL). Seven known oleanane glycosides, 3β-[(α-L-arabinopyranosyl)oxy]-16α-hydroxyolean-12-en-28-oic acid (1, IC50 8 μM), 3β-[(α-L-arabinopyranosyl)oxy]-16α,23-dihydroxyolean-12-en-18-oic acid (2, IC50 13 μM), 3β-[( O-β-D-glucopyranosyl-(1→3)-α-L-arabinopyranosyl)oxy]–16α-hydroxyolean-12-en-28-oic acid (3, IC50 7 μM), 3β-[( O-α-L-rhamnopyranosyl-(1→2)-α-L-arabinopyranosyl)oxy]-16α-hydroxyolean-12-en-28-oic acid (4, IC50 2.8 μM), 3β-[( O-β-D-glucopyranosyl-(1→3)-α-L-arabinopyranosyl)oxy]–23-hydroxyolean-12-en-28-oic acid (5, IC50 10 μM), 3β-[( O-α-L-rhamnopyranosyl-(1→2)-α-L-arabinopyranosyl)oxy]-23-hydroxyolean-12-en-28-oic acid (6, IC50 3.4 μM), and 3β-[(α-L-arabinopyranosyl)oxy]-23-hydroxyolean-12-en-28-oic acid (7, IC50 3.4 μM) were isolated, and their structures determined using spectroscopic methods.
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Affiliation(s)
- Alexander L. Eaton
- Department of Chemistry and the Virginia Tech Center for Drug Discovery, Virginia Tech, Blacksburg, Virginia 24061, USA
| | - Peggy J. Brodie
- Department of Chemistry and the Virginia Tech Center for Drug Discovery, Virginia Tech, Blacksburg, Virginia 24061, USA
| | | | - Roland Rakotondrajaona
- Centre National d'Application des Recherches Pharmaceutiques, B.P 702, Antananarivo 101, Madagascar
| | - Etienne Rakotobe
- Centre National d'Application des Recherches Pharmaceutiques, B.P 702, Antananarivo 101, Madagascar
| | - Vincent E. Rasamison
- Centre National d'Application des Recherches Pharmaceutiques, B.P 702, Antananarivo 101, Madagascar
| | - David G. I. Kingston
- Department of Chemistry and the Virginia Tech Center for Drug Discovery, Virginia Tech, Blacksburg, Virginia 24061, USA
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