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Essid R, Kefi S, Damergi B, Abid G, Fares N, Jallouli S, Tabbene O, Limam F. Ballota hirsuta essential oil as a potential multitarget agent against Leishmania parasite: in vitro and in silico studies. Int Microbiol 2024:10.1007/s10123-024-00567-x. [PMID: 39215892 DOI: 10.1007/s10123-024-00567-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 07/11/2024] [Accepted: 07/31/2024] [Indexed: 09/04/2024]
Abstract
In the present study, we assessed the antioxidant and antileishmanial potential from fresh leaves of Ballota (B.) hirsuta essential oil (EO). The GC-MS analysis of B. hirsuta EO revealed that spathulenol and germacrene D were the main components accounting for 26.03% and 19.64% of the total EO, respectively. B. hirsuta EO possesses moderate antioxidant activity, both in neutralizing DPPH radicals and in inhibiting β-carotene bleaching. In addition, it exhibits both high antileishmanial activity and selectivity towards the promastigote and amastigote forms. Specifically, B. hirsuta EO showed an IC50 value of 20.78 µg/mL and 23.62 µg/mL, against the promastigote and amastigote forms of L. infantum, respectively. It also demonstrated an IC50 value of 22.39 and 25.76 µg/mL, against the promastigote and amastigote forms of L. major, respectively. However, it exhibited moderate cytotoxicity, with a selectivity index below 10. The investigation of the molecular mechanism of action revealed that B. hirsuta EO inhibited only the sterol pathway, including CYP51 gene expression. Additionally, in silico analysis indicated that the main compounds of B. hirsuta EO, germacrene and spathulenol, exhibited excellent affinity energy against Leishmania enzymes trypanothione reductase (TryR) and trypanothione synthase (TryS). This denotes the potential of these compounds as promising agents to control leishmaniasis.
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Affiliation(s)
- Rym Essid
- Laboratory of Bioactive Substances, Biotechnology Center in Borj-Cedria Technopole, BP 901, 2050, Hammam-Lif, Tunisia.
- University of Tunis-El Manar, Campus Universitaire Farhat Hached, BP-94 Rommana, 1068, Tunis, Tunisia.
| | - Sarra Kefi
- Laboratory of Bioactive Substances, Biotechnology Center in Borj-Cedria Technopole, BP 901, 2050, Hammam-Lif, Tunisia
- University of Tunis-El Manar, Campus Universitaire Farhat Hached, BP-94 Rommana, 1068, Tunis, Tunisia
| | - Bilel Damergi
- Laboratory of Bioactive Substances, Biotechnology Center in Borj-Cedria Technopole, BP 901, 2050, Hammam-Lif, Tunisia
| | - Ghassen Abid
- Laboratory of Legumes and Sustainable Agro-Systems, Centre of Biotechnology of Borj Cedria, Hammam-Lif, Tunisia
| | - Nadia Fares
- Laboratory of Bioactive Substances, Biotechnology Center in Borj-Cedria Technopole, BP 901, 2050, Hammam-Lif, Tunisia
| | - Selim Jallouli
- Laboratory of Bioactive Substances, Biotechnology Center in Borj-Cedria Technopole, BP 901, 2050, Hammam-Lif, Tunisia
| | - Olfa Tabbene
- Laboratory of Bioactive Substances, Biotechnology Center in Borj-Cedria Technopole, BP 901, 2050, Hammam-Lif, Tunisia
| | - Ferid Limam
- Laboratory of Bioactive Substances, Biotechnology Center in Borj-Cedria Technopole, BP 901, 2050, Hammam-Lif, Tunisia
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Lin ZR, Bao MY, Xiong HM, Cao D, Bai LP, Zhang W, Chen CY, Jiang ZH, Zhu GY. Boswellianols A-I, Structurally Diverse Diterpenoids from the Oleo-Gum Resin of Boswellia carterii and Their TGF- β Inhibition Activity. PLANTS (BASEL, SWITZERLAND) 2024; 13:1074. [PMID: 38674483 PMCID: PMC11054202 DOI: 10.3390/plants13081074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 04/07/2024] [Accepted: 04/08/2024] [Indexed: 04/28/2024]
Abstract
Olibanum, a golden oleo-gum resin from species in the Boswellia genus (Burseraceae family), is a famous traditional herbal medicine widely used around the world. Previous phytochemical studies mainly focused on the non-polar fractions of olibanum. In this study, nine novel diterpenoids, boswellianols A-I (1-9), and three known compounds were isolated from the polar methanolic fraction of the oleo-gum resin of Boswellia carterii. Their structures were determined through comprehensive spectroscopic analysis as well as experimental and calculated electronic circular dichroism (ECD) data comparison. Compound 1 is a novel diterpenoid possessing an undescribed prenylmaaliane-type skeleton with a 6/6/3 tricyclic system. Compounds 2-4 were unusual prenylaromadendrane-type diterpenoids, and compounds 5-9 were new highly oxidized cembrane-type diterpenoids. Compounds 1 and 5 showed significant transforming growth factor β (TGF-β) inhibitory activity via inhibiting the TGF-β-induced phosphorylation of Smad3 and the expression of fibronectin and N-cadherin (the biomarker of the epithelial-mesenchymal transition) in a dose-dependent manner in LX-2 human hepatic stellate cells, indicating that compounds 1 and 5 should be potential anti-fibrosis agents. These findings give a new insight into the chemical constituents of the polar fraction of olibanum and their inhibitory activities on the TGF-β/Smad signaling pathway.
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Affiliation(s)
- Zhi-Rong Lin
- State Key Laboratory of Quality Research in Chinese Medicines, Guangdong-Hong Kong-Macao Joint Laboratory of Respiratory Infectious Disease, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau 999078, China; (Z.-R.L.); (M.-Y.B.); (H.-M.X.); (D.C.); (L.-P.B.); (W.Z.)
| | - Meng-Yu Bao
- State Key Laboratory of Quality Research in Chinese Medicines, Guangdong-Hong Kong-Macao Joint Laboratory of Respiratory Infectious Disease, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau 999078, China; (Z.-R.L.); (M.-Y.B.); (H.-M.X.); (D.C.); (L.-P.B.); (W.Z.)
| | - Hao-Ming Xiong
- State Key Laboratory of Quality Research in Chinese Medicines, Guangdong-Hong Kong-Macao Joint Laboratory of Respiratory Infectious Disease, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau 999078, China; (Z.-R.L.); (M.-Y.B.); (H.-M.X.); (D.C.); (L.-P.B.); (W.Z.)
| | - Dai Cao
- State Key Laboratory of Quality Research in Chinese Medicines, Guangdong-Hong Kong-Macao Joint Laboratory of Respiratory Infectious Disease, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau 999078, China; (Z.-R.L.); (M.-Y.B.); (H.-M.X.); (D.C.); (L.-P.B.); (W.Z.)
| | - Li-Ping Bai
- State Key Laboratory of Quality Research in Chinese Medicines, Guangdong-Hong Kong-Macao Joint Laboratory of Respiratory Infectious Disease, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau 999078, China; (Z.-R.L.); (M.-Y.B.); (H.-M.X.); (D.C.); (L.-P.B.); (W.Z.)
| | - Wei Zhang
- State Key Laboratory of Quality Research in Chinese Medicines, Guangdong-Hong Kong-Macao Joint Laboratory of Respiratory Infectious Disease, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau 999078, China; (Z.-R.L.); (M.-Y.B.); (H.-M.X.); (D.C.); (L.-P.B.); (W.Z.)
| | - Cheng-Yu Chen
- Jiaheng Pharmaceutical Technology Co., Ltd., Zhuhai 519000, China;
| | - Zhi-Hong Jiang
- State Key Laboratory of Quality Research in Chinese Medicines, Guangdong-Hong Kong-Macao Joint Laboratory of Respiratory Infectious Disease, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau 999078, China; (Z.-R.L.); (M.-Y.B.); (H.-M.X.); (D.C.); (L.-P.B.); (W.Z.)
| | - Guo-Yuan Zhu
- State Key Laboratory of Quality Research in Chinese Medicines, Guangdong-Hong Kong-Macao Joint Laboratory of Respiratory Infectious Disease, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau 999078, China; (Z.-R.L.); (M.-Y.B.); (H.-M.X.); (D.C.); (L.-P.B.); (W.Z.)
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Sun Y, Xin J, Xu Y, Wang X, Zhao F, Niu C, Liu S. Research Progress on Sesquiterpene Compounds from Artabotrys Plants of Annonaceae. Molecules 2024; 29:1648. [PMID: 38611927 PMCID: PMC11013193 DOI: 10.3390/molecules29071648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 03/27/2024] [Accepted: 04/04/2024] [Indexed: 04/14/2024] Open
Abstract
Artabotrys, a pivotal genus within the Annonaceae family, is renowned for its extensive biological significance and medicinal potential. The genus's sesquiterpene compounds have attracted considerable interest from the scientific community due to their structural complexity and diverse biological activities. These compounds exhibit a range of biological activities, including antimalarial, antibacterial, anti-inflammatory analgesic, and anti-tumor properties, positioning them as promising candidates for medical applications. This review aims to summarize the current knowledge on the variety, species, and structural characteristics of sesquiterpene compounds isolated from Artabotrys plants. Furthermore, it delves into their pharmacological activities and underlying mechanisms, offering a comprehensive foundation for future research.
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Affiliation(s)
- Yupei Sun
- School of Pharmacy, Yantai University, Yantai 264005, China; (Y.S.); (Y.X.); (X.W.)
| | - Jianzeng Xin
- School of Life Sciences, Yantai University, Yantai 264005, China;
| | - Yaxi Xu
- School of Pharmacy, Yantai University, Yantai 264005, China; (Y.S.); (Y.X.); (X.W.)
| | - Xuyan Wang
- School of Pharmacy, Yantai University, Yantai 264005, China; (Y.S.); (Y.X.); (X.W.)
| | - Feng Zhao
- School of Pharmacy, Yantai University, Yantai 264005, China; (Y.S.); (Y.X.); (X.W.)
| | - Changshan Niu
- College of Pharmacy, University of Utah, Salt Lake City, UT 84108, USA
| | - Sheng Liu
- School of Pharmacy, Yantai University, Yantai 264005, China; (Y.S.); (Y.X.); (X.W.)
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Chen S, Yang Q, Zhang X, Wang Z, Xu HM, Dong LB. Discovery of Diverse Sesquiterpenoids from Crossiella cryophila through Genome Mining and NMR Tracking. JOURNAL OF NATURAL PRODUCTS 2024; 87:195-206. [PMID: 38266176 DOI: 10.1021/acs.jnatprod.3c00830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2024]
Abstract
Terpenoids, the largest and most structurally diverse natural product family, are predominantly found in fungi and plants, with bacterial terpenoids forming a minor fraction. Here, we established an efficient platform that integrates genome mining and NMR-tracking for prioritizing strains and tracking bacterial terpenoids. By employing this platform, we selected Crossiella cryophila for a comprehensive investigation of its capacity for terpenoid production, resulting in the characterization of 15 sesquiterpenoids. These compounds comprise nine new sesquiterpenoids (1-9), along with six known analogs (10-15), which are categorized into five distinctive carbon skeletons: bicyclogermacrane, maaliane, cadinane, eudesmane, and nor-eudesmane. Their chemical structures were determined through a combination of spectroscopic analysis, single-crystal X-ray diffraction, and quantum chemical calculations. Notably, the absolute configurations of compounds 1, 2, 5-7, 9, and 13-15 were determined via single-crystal X-ray diffraction analyses. The selected compounds were evaluated for their anticancer, antimicrobial, and anti-inflammatory bioactivities; however, none of these compounds displayed any significant bioactivity. This study enriches the repertoire of bacterial terpenoids, offers a practical process for prioritizing strains for bacterial terpenoids discovery, and establishes a foundation for exploring terpenoid biosynthesis.
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Affiliation(s)
- Shungen Chen
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Qian Yang
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Xiaowei Zhang
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Zengyuan Wang
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Hui-Min Xu
- The Public Laboratory Platform, China Pharmaceutical University, Nanjing 211198, China
| | - Liao-Bin Dong
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China
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Chu JN, Krishnan P, Lim KH. A comprehensive review on the chemical constituents, sesquiterpenoid biosynthesis and biological activities of Sarcandra glabra. NATURAL PRODUCTS AND BIOPROSPECTING 2023; 13:53. [PMID: 38010490 PMCID: PMC10682397 DOI: 10.1007/s13659-023-00418-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Accepted: 11/13/2023] [Indexed: 11/29/2023]
Abstract
Sarcandra glabra (Thunb.) Nakai is a perennial evergreen herb categorised within the Sarcandra Gardner genus under the Chloranthaceae family. Indigenous to tropical and subtropical regions of East Asia and India, this species is extensively distributed across China, particularly in the southern regions (Sichuan, Yunnan, and Jiangxi). In addition to its high ornamental value, S. glabra has a rich history of use in traditional Chinese medicine, evident through its empirical prescriptions for various ailments like pneumonia, dysentery, fractures, bruises, numbness, amenorrhea, rheumatism, and other diseases. Besides, modern pharmacological studies have revealed various biological activities, such as antitumour, anti-bacterial, anti-viral anti-inflammatory and immunomodulatory effects. The diverse chemical constituents of S. glabra have fascinated natural product researchers since the 1900s. To date, over 400 compounds including terpenoids, coumarins, lignans, flavonoids, sterols, anthraquinones, organic acids, and organic esters have been isolated and characterised, some featuring unprecedented structures. This review comprehensively examines the current understanding of S. glabra's phytochemistry and pharmacology, with emphasis on the chemistry and biosynthesis of its unique chemotaxonomic marker, the lindenane-type sesquiterpenoids.
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Affiliation(s)
- Jin-Ning Chu
- School of Pharmacy, University of Nottingham Malaysia, Jalan Broga, 43500, Semenyih, Selangor, Malaysia
| | - Premanand Krishnan
- Foundation in Science, University of Nottingham Malaysia, Jalan Broga, 43500, Semenyih, Selangor, Malaysia
| | - Kuan-Hon Lim
- School of Pharmacy, University of Nottingham Malaysia, Jalan Broga, 43500, Semenyih, Selangor, Malaysia.
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Discovery and Anticancer Activity of the Plagiochilins from the Liverwort Genus Plagiochila. Life (Basel) 2023; 13:life13030758. [PMID: 36983914 PMCID: PMC10058164 DOI: 10.3390/life13030758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 03/04/2023] [Accepted: 03/09/2023] [Indexed: 03/16/2023] Open
Abstract
The present analysis retraces the discovery of plagiochilins A-to-W, a series of seco-aromadendrane-type sesquiterpenes isolated from diverse leafy liverworts of the genus Plagiochila. Between 1978, with the first isolation of the leader product plagiochilin A from P. yokogurensis, and 2005, with the characterization of plagiochilin X from P. asplenioides, a set of 24 plagiochilins and several derivatives (plagiochilide, plagiochilal A-B) has been isolated and characterized. Analogue compounds recently described are also evoked, such as the plagiochianins and plagicosins. All these compounds have been little studied from a pharmacological viewpoint. However, plagiochilins A and C have revealed marked antiproliferative activities against cultured cancer cells. Plagiochilin A functions as an inhibitor of the termination phase of cytokinesis: the membrane abscission stage. This unique, innovative mechanism of action, coupled with its marked anticancer action, notably against prostate cancer cells, make plagiochilin A an interesting lead molecule for the development of novel anticancer agents. There are known options to increase its potency, as deduced from structure–activity relationships. The analysis shed light on this family of bryophyte species and the little-known group of bioactive terpenoid plagiochilins. Plagiochilin A and derivatives shall be further exploited for the design of novel anticancer targeting the cytokinesis pathway.
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Park C, Garland SM, Close DC. The Effect of the Height of Coppicing and Harvest Season on the Yield and Quality of the Essential Oil of Kunzea ambigua. PLANTS (BASEL, SWITZERLAND) 2022; 12:20. [PMID: 36616149 PMCID: PMC9824379 DOI: 10.3390/plants12010020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 12/15/2022] [Accepted: 12/16/2022] [Indexed: 06/17/2023]
Abstract
Kunzea ambigua is a small shrub belonging to the Myrtaceae family and the leaves are steam-distilled to produce a therapeutically active essential oil. With production moving from wild-harvested to orchardised stands, there is a need for harvest management of kunzea oil. This study compared the regrowth, essential oil content and composition of kunzea plants after harvesting vegetative material to a depth of 0.2 m above ground level (shallow-cut), relative to plants cut to a depth of 0.1 m above ground level (deep-cut) over the 2018/2019 growing season. Increased vegetative biomass accounted for the increased oil yield and was caused by consistently higher growth rates of 50 to 60% across all seasons in shallow-cut crops relative to those subject to deep-cut. Total soluble sugar concentrations were higher in the leaves and lower in the roots of deep-cut treated plants compared to the other treatments, indicating defoliated K. ambigua responds by mobilising sugars into above-ground biomass. The overall essential oil content of leaves was constant regardless of season, though the oil yield for shallow-cut was 1.9-fold higher at 11.79 ± 0.23 g/m2 compared to deep-cut (6.24 ± 0.18 g/m2). An interactive effect of harvest intensity with season was recorded for all major components except for a non-significant effect of season on terpinen-4-ol. Bicyclogermacrene and α-pinene were elevated in both shallow- and deep-cut treatments relative to control (un-cut) in spring, possibly due to the plant defense response after de-foliation. The highest percentage of bioactive compounds (1,8-cineole and viridiflorol) were present in autumn. Therefore, the recovery of biomass post-harvest is optimised by shallow-cut harvests, and the profile of kunzea oil can be manipulated to elevate levels of specific bioactive components by selecting to crop in autumn/spring.
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Combined analysis of transcriptomics and metabolomics revealed complex metabolic genes for diterpenoids biosynthesis in different organs of Anoectochilus roxburghii. CHINESE HERBAL MEDICINES 2022. [DOI: 10.1016/j.chmed.2022.11.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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Johnson JD, Teeples CR, Akkawi NR, Wilkerson-Hill SM. Efficient Synthesis of Orphaned Cyclopropanes Using Sulfones as Carbene Equivalents. J Am Chem Soc 2022; 144:14471-14476. [PMID: 35939335 DOI: 10.1021/jacs.2c07063] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Small molecules containing 1,1-dimethylcyclopropanes are prevalent throughout nature but are difficult to synthesize using state-of-the-art metal-catalyzed carbene transfer methods without competing 1,2-hydride shifts. Herein, we introduce a mechanistically distinct platform to transfer 1,1-dialkylcarbene units to olefins using carbometalation reactions of dialkyl sulfonyl anions. In the presence of NaNH2 or n-BuLi in ethereal solvents, dialkyl sulfones react with styrenes and arylbutadienes between 23 and 70 °C to produce the corresponding 1,1-dialkylcyclopropanes. We report 40 examples of this reactivity including 16 different styrenes (up to 89% isolated yield), 9 arylbutadienes (51-88% yield), and 13 different sulfones (46-80% yield). In addition, we report an example of a sequential cyclopropanation reaction using this method. Preliminary mechanistic studies suggest a stepwise anionic process that is initiated by the direct addition of sulfonyl anions to a carbon-carbon double bond.
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Affiliation(s)
- John Douglas Johnson
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States
| | - Charles Reece Teeples
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States
| | - Nicholas Rajai Akkawi
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States
| | - Sidney M Wilkerson-Hill
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States
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Shen SM, Yang Q, Zang Y, Li J, Liu X, Guo YW. Anti-inflammatory aromadendrane- and cadinane-type sesquiterpenoids from the South China Sea sponge Acanthella cavernosa. Beilstein J Org Chem 2022; 18:916-925. [PMID: 35957756 PMCID: PMC9344550 DOI: 10.3762/bjoc.18.91] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Accepted: 07/14/2022] [Indexed: 11/23/2022] Open
Abstract
One new aromadendrane-type sesquiterpenoid, namely ximaocavernosin P [(+)-1], and three new cadinane-type sesquiterpenoids, namely (+)-maninsigin D [(+)-4], (+)- and (−)-ximaocavernosin Q [(+)- and (−)-5], together with five related known ones [2, 3, (−)-4, 6, and 7], were isolated from the Hainan sponge Acanthella cavernosa. Compounds 4 and 5 were isolated as racemic forms, which were further separated to the corresponding enantiomers [(+)-4/(−)-4 and (+)-5/(−)-5], respectively, by using chiral-phase HPLC. The structures of new compounds were elucidated by extensive spectroscopic analysis and comparison with the reported data. In addition, the absolute configuration of optically pure (+)-1 and 2 were determined by time-dependent density functional theory/electronic circular dichroism (TDDFT-ECD) calculations or X-ray diffraction analysis. A plausible biosynthetic pathway of these sesquiterpenoids and their internal correlation were proposed and discussed. In an in vitro bioassay, (+)-aristolone (3) exhibited promising anti-inflammatory activity by the inhibition of LPS-induced TNF-α and CCL2 release in RAW 264.7 macrophages.
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Affiliation(s)
- Shou-Mao Shen
- School of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing 210023, China
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Qing Yang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
- School of Pharmaceutical Science, Nanchang University, Nanchang 330006, China
| | - Yi Zang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Jia Li
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
- Shandong Laboratory of Yantai Drug Discovery, Bohai Rim Advanced Research Institute for Drug Discovery, Yantai, Shandong 264117, China
- Open Studio for Druggability Research of Marine Natural Products, Pilot National Laboratory for Marine Science and Technology, Qingdao, China
| | - Xueting Liu
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Yue-Wei Guo
- School of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing 210023, China
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
- Shandong Laboratory of Yantai Drug Discovery, Bohai Rim Advanced Research Institute for Drug Discovery, Yantai, Shandong 264117, China
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Abstract
Efforts to develop catalytic carbene transfer reactions have largely relied on the use of diazo precursors. However, diazoalkanes are susceptible to undergoing violent exothermic decomposition unless they contain stabilizing substituents. Consequently, most synthetic methods are restricted to diazoacetates or related derivatives. In this Perspective, we describe an alternative approach to carbene transfer catalysis based on the generation of metal carbenoids from gem-dihaloalkanes and gem-dihaloalkenes. These precursors are readily available and stable in unsubstituted form or with a variety of donor and acceptor substituents. Using this approach, it is possible to design cyclopropanation reactions with non-stabilized carbenes, such as methylene, isopropylidene, and vinylidene. Furthermore, due to the distinct mechanistic pathways of these reactions, novel modes of cycloaddition can be carried out, including [4 + 1]-cycloadditions.
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Affiliation(s)
- Christopher Uyeda
- Department of Chemistry, Purdue University, West Lafayette, IN 47907, USA
| | - Annah E. Kalb
- Department of Chemistry, Purdue University, West Lafayette, IN 47907, USA
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Liu R, Liu XY, Li M, Liu J, Yang MH, Kong LY. Eurobusones A-D, four antibacterial formyl phloroglucinol meoterpenoids from Eucalyptus robusta. Fitoterapia 2022; 157:105131. [PMID: 35093480 DOI: 10.1016/j.fitote.2022.105131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 01/13/2022] [Accepted: 01/13/2022] [Indexed: 11/04/2022]
Abstract
Four antibacterial formyl phloroglucinol meroterpenoids (FPMs), eurobusones A-D (1-4), as well as six known analogues (5-10), were isolated from the leaves of Eucalyptus robusta. Their structures were determined by the analysis of spectroscopic data and electron circular dichroism (ECD) calculation, along with the application of Snatzke helicity rules. Among them, compounds 2 and 8-10 showed good activity against Staphylococcus aureus, Pseudomonas aeruginosa and Bacillus subtilis with MIC50 values less than 1.00 μg/mL.
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Affiliation(s)
- Rui Liu
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, People's Republic of China
| | - Xiang-Yue Liu
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, People's Republic of China
| | - Min Li
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, People's Republic of China
| | - Juan Liu
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, People's Republic of China
| | - Ming-Hua Yang
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, People's Republic of China..
| | - Ling-Yi Kong
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, People's Republic of China..
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Zhang X, Liu Y, Deng J, Xia J, Zhang Q, Chen X, Liu R, Gao Y, Gao JM. Structurally Diverse Sesquiterpenoid Glycoside Esters from Pittosporum qinlingense with Anti-neuroinflammatory Activity. JOURNAL OF NATURAL PRODUCTS 2022; 85:115-126. [PMID: 34978437 DOI: 10.1021/acs.jnatprod.1c00544] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Thirteen new sesquiterpenoid glycoside esters, including 11 aromadendrane-type compounds, pitqinlingosides A-K (1-11), one cadinane-type compound, pitqinlingoside L (12), and one eudesmane-type compound, pitqinlingoside M (13), together with seven known analogues (14-20) were isolated from the twigs, fruits, and leaves of Pittosporum qinlingense. Structures were elucidated by analysis of spectroscopic data, gas chromatography mass spectrometry (GC-MS), and chemical methods. The absolute configuration was confirmed by single-crystal X-ray crystallography analysis or electronic circular dichroism spectra. Unusual glycoside esters are characterized by the presence of polyacylated β-d-fucopyranosyl, β-d-glucopyranosyl, and β-d-xylopyranosyl units. Pitqinlingosides A (1), B (2), D (4), and F (6), pittosporanoside A1 acetate (14), and pittosporanoside A1 (16) showed significant nitric oxide production inhibition in lipopolysaccharide (LPS)-induced BV-2 microglial cells with IC50 values ranging from 0.95 to 24.12 μM. Structure-activity relationships of the isolated compounds are discussed.
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Affiliation(s)
- Xiuyun Zhang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China
| | - Yao Liu
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China
| | - Jili Deng
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China
| | - Jiankai Xia
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China
| | - Qiang Zhang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China
| | - Xin Chen
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China
| | - Runze Liu
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China
| | - Yuqi Gao
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China
| | - Jin-Ming Gao
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China
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Hu J, Ji K, Yan L, Yang S, Li Y, Wen W, Chen L, Wu X, Hu Y, Xie W. A concise synthesis of herbertenolide. Org Biomol Chem 2022; 20:2205-2208. [DOI: 10.1039/d2ob00041e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A concise synthesis of (±)-herbertenolide has been accomplished herein. The strategy relies on a H2O2-mediated oxidative ring contraction of all-substituted cyclic α-formyl ketones for the stereospecific construction of contiguous quaternary...
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15
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Taxonomic Insights and Its Type Cyclization Correlation of Volatile Sesquiterpenes in Vitex Species and Potential Source Insecticidal Compounds: A Review. Molecules 2021; 26:molecules26216405. [PMID: 34770814 PMCID: PMC8587464 DOI: 10.3390/molecules26216405] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 10/21/2021] [Accepted: 10/22/2021] [Indexed: 11/17/2022] Open
Abstract
Sesquiterpenes (SS) are secondary metabolites formed by the bonding of 3 isoprene (C5) units. They play an important role in the defense and signaling of plants to adapt to the environment, face stress, and communicate with the outside world, and their evolutionary history is closely related to their physiological functions. This review considers their presence and extensively summarizes the 156 sesquiterpenes identified in Vitextaxa, emphasizing those with higher concentrations and frequency among species and correlating with the insecticidal activities and defensive responses reported in the literature. In addition, we classify the SS based on their chemical structures and addresses cyclization in biosynthetic origin. Most relevant sesquiterpenes of the Vitex genus are derived from the germacredienyl cation mainly via bicyclogermacrene and germacrene C, giving rise to aromadrendanes, a skeleton with the highest number of representative compounds in this genus, and 6,9-guaiadiene, respectively, indicating the production of 1.10-cyclizing sesquiterpene synthases. These enzymes can play an important role in the chemosystematics of the genus from their corresponding routes and cyclizations, constituting a new approach to chemotaxonomy. In conclusion, this review is a compilation of detailed information on the profile of sesquiterpene in the Vitex genus and, thus, points to new unexplored horizons for future research.
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Wen J, Liu L, Li J, He Y. A review of nardosinone for pharmacological activities. Eur J Pharmacol 2021; 908:174343. [PMID: 34265296 DOI: 10.1016/j.ejphar.2021.174343] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 06/16/2021] [Accepted: 07/11/2021] [Indexed: 11/20/2022]
Abstract
Nardostachys jatamansi is a natural medicinal plant that is widely used in Asia for the treatment of various neurological and cardiac diseases, and nardosinone is the main active ingredient of N. jatamansi, which has the potential to treat a variety of diseases. Herein, we summarize the reported chemical structure, pharmacokinetics and pharmacological potential of nardosinone, and point out areas for further research. We obtained studies that were related to the chemical structure and pharmacological activities of nardosinone from several databases. Previous studies have shown that nardosinone has anti-inflammatory effects, anti-hypertrophic effect in cardiomyocytes, enhances activity of the nerve growth factor and promotes neural stem cells to proliferate and differentiate. However, the molecular mechanism of how nardosinone promotes proliferation and differentiation of neural stem cells, and its role in resisting cardiomyocyte hypertrophy remains unclear and needs to be further studied. Overall, nardosinone has the potential to treat bacterial infections, periodontitis, cardiac diseases, neurodegenerative diseases and cancer. However, the gaps found in the literature is the lack of more comprehensive information regarding the pharmacokinetics and toxicology of nardosinone.
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Affiliation(s)
- Jiawei Wen
- State Key Laboratory of Southwestern Chinese Medicine Resources, College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, 611137, China
| | - Linqiu Liu
- State Key Laboratory of Southwestern Chinese Medicine Resources, College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, 611137, China
| | - Junjun Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, 611137, China
| | - Yang He
- State Key Laboratory of Southwestern Chinese Medicine Resources, College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, 611137, China.
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Rare flavonoids and sesquiterpenoids isolated from the leaves of Goniothalamus gracilipes. Fitoterapia 2021; 155:105034. [PMID: 34536533 DOI: 10.1016/j.fitote.2021.105034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 09/11/2021] [Accepted: 09/11/2021] [Indexed: 11/20/2022]
Abstract
Three previously undescribed benzopyranyl sesquiterpenes gracilipins BD (1-3) and two flavonoids 5,4'-dihydroxy-6-(2-hydroxybenzyl)-3,7,3'-trimethoxyflavone (4), and 5,4'-dihydroxy-8-(2-hydroxybenzyl)-3,7-dimethoxyflavone (5) were isolated from the leaves of Goniothalamus gracilipes (Annonaceae). Their structures were determined by analyses of MS and 2D NMR data. The absolute configurations of 1 were established by analysis of X-ray diffraction data. Cytotoxic evaluation of the compounds 1-5 against four cancer cell lines (KB, LU-1, HepG-2 and MCF-7) indicated that compound 5 had inhibitory activity against HepG-2 cell line with IC50 value of 16.7 μM. All new compounds (1-5) were evaluated for their antimicrobial activity against a panel of clinically significant microorganisms. Compound 2 showed significant antimicrobial effect on Staphylococus aureus with MIC value of 32 μg/mL.
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Barløse CL, Østergaard NL, Bitsch RS, Iversen MV, Jørgensen KA. A Direct Organocatalytic Enantioselective Route to Functionalized
trans
‐Diels–Alder Products Having the Norcarane Scaffold. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202106598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Casper L. Barløse
- Department of Chemistry Aarhus University Langelandsgade 140 8000 Aarhus C Denmark
| | - Niklas L. Østergaard
- Department of Chemistry Aarhus University Langelandsgade 140 8000 Aarhus C Denmark
| | - René S. Bitsch
- Department of Chemistry Aarhus University Langelandsgade 140 8000 Aarhus C Denmark
| | - Marc V. Iversen
- Department of Chemistry Aarhus University Langelandsgade 140 8000 Aarhus C Denmark
| | - Karl Anker Jørgensen
- Department of Chemistry Aarhus University Langelandsgade 140 8000 Aarhus C Denmark
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19
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Barløse CL, Østergaard NL, Bitsch RS, Iversen MV, Jørgensen KA. A Direct Organocatalytic Enantioselective Route to Functionalized trans-Diels-Alder Products Having the Norcarane Scaffold. Angew Chem Int Ed Engl 2021; 60:18318-18327. [PMID: 34080269 DOI: 10.1002/anie.202106598] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 06/02/2021] [Indexed: 11/07/2022]
Abstract
An enantioselective methodology to construct trans-Diels-Alder scaffolds by organocatalysis with excellent selectivity, high yield and up to five contiguous stereocenters is presented. The reaction concept integrates the halogen effect and a novel discovered pseudo-halogen effect to direct an endo-selective, secondary-amine catalyzed Diels-Alder reaction allowing for the subsequent formation of trans-Diels-Alder cycloadducts featuring the norcarene scaffold. The methodology relies on the reaction between an in situ generated trienamine and an α-brominated or α-pseudo-halogenated enone to form a fleeting cis-Diels-Alder intermediate. The endo-transition state-enhanced by the (pseudo-)halogen effect-sets the stereochemistry that allows for a subsequent SN 2-like reaction at a tertiary center to obtain the trans-Diels-Alder scaffold. The mechanism was investigated and supported by experimental results as well as computational studies.
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Affiliation(s)
- Casper L Barløse
- Department of Chemistry, Aarhus University, Langelandsgade 140, 8000, Aarhus C, Denmark
| | - Niklas L Østergaard
- Department of Chemistry, Aarhus University, Langelandsgade 140, 8000, Aarhus C, Denmark
| | - René S Bitsch
- Department of Chemistry, Aarhus University, Langelandsgade 140, 8000, Aarhus C, Denmark
| | - Marc V Iversen
- Department of Chemistry, Aarhus University, Langelandsgade 140, 8000, Aarhus C, Denmark
| | - Karl Anker Jørgensen
- Department of Chemistry, Aarhus University, Langelandsgade 140, 8000, Aarhus C, Denmark
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21
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22
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Chen Y, Liu H, Zou G, Yang W, Zhang L, Yan Z, Long Y, She Z. Bioactive sesquiterpene derivatives from mangrove endophytic fungus Phomopsis sp. SYSU-QYP-23: Structures and nitric oxide inhibitory activities. Bioorg Chem 2020; 107:104530. [PMID: 33323272 DOI: 10.1016/j.bioorg.2020.104530] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 10/30/2020] [Accepted: 11/30/2020] [Indexed: 11/17/2022]
Abstract
Eight new sesquiterpene derivatives (2, 4-6 and 10-13), along with five known analogues were isolated from the mangrove endophytic fungus Phomopsis sp. SYSU-QYP-23. Their structures of new compounds were established by spectroscopic methods, and the absolute configurations were confirmed by single-crystal X-ray diffraction analysis and comparison of the experimental ECD spectra. The absolute configuration of the side chain in 1 was first defined by modified Mosher's method. Compounds 1-7 showed potent inhibitory activities against nitric oxide (NO) production in lipopolysaccharides (LPS) induced RAW 264.7 cells with IC50 values ranging from 8.6 to 14.5 μM. The molecular docking results implied that the bioactive sesquiterpenes may directly bind with targeting residues in the active cavity of iNOS protein.
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Affiliation(s)
- Yan Chen
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, PR China; National R & D Center for Edible Fungus Processing Technology, Henan University, Kaifeng 475004, China
| | - Hongju Liu
- School of Pharmacy, Guangdong Medical University, Dongguan 523808, PR China
| | - Ge Zou
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, PR China
| | - Wencong Yang
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, PR China
| | - Lishan Zhang
- School of Pharmacy, Guangdong Medical University, Dongguan 523808, PR China
| | - Zhangyuan Yan
- School of Chemistry, South China Normal University, Guangzhou 510006, PR China
| | - Yuhua Long
- School of Chemistry, South China Normal University, Guangzhou 510006, PR China.
| | - Zhigang She
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, PR China.
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23
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Rhetso T, Shubharani R, Roopa MS, Sivaram V. Chemical constituents, antioxidant, and antimicrobial activity of Allium chinense G. Don. FUTURE JOURNAL OF PHARMACEUTICAL SCIENCES 2020. [DOI: 10.1186/s43094-020-00100-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Allium chinense G. Don is a medicinal and aromatic herb belonging to the family Amaryllidaceae, characterized by a high saponin content. The previous report has mostly been focused on the bulb, and there is very limited work on the leaf. The information about biological and chemical constituent of A. chinense leaf is still inadequate in contrast to the investigations reported on the bulb. To the best of our knowledge, there is no report on the hexane extract of both bulb and leaf extract. Therefore, the present investigation was focused on identifying and characterization of the hexane extracts of A. chinense bulb and leaf quantitatively and by using the GC-MS method and to know its scavenging, antibacterial, and antifungal activity.
Results
Twenty-eight bioactive compounds were identified in the bulb and nine in the leaf extract by GC-MS analysis. The versatile compounds present in the bulb are 2-methyloctacosane (21.30%), tetracontane (14.05%), eicosane, 10-methyl (12.06%), heneicosane (8.46%), octadecyl trifluoroacetate (6.48%), and 1-heneicosanol (5.76%), whereas in the leaf, it was phytol (35.76%), tetratetracontane (18.49%), perhydrofarnesyl acetone (14.76%), and heptadecane, 2,6-dimethyl (10.79%). In quantitative estimation, saponins were estimated to have the highest with 375.000 ± 0.577 mg/g in the leaf and 163.750 ± 0.433 mg/g in the bulb. The DPPH antioxidant scavenging activity was found to be minimum in both the bulb (IC50 = 678.347 μg/ml) and leaf (IC50 = 533.337 μg/ml). A. chinense extracts of both leaf and bulb exerted potential antibacterial effects against Staphylococcus aureus and Pseudomonas aeruginosa. Leaf extract exhibited greater antifungal activity than the bulb against Aspergillus niger.
Conclusion
From the analysis, the hexane leaf extract exhibited higher antibacterial, antifungal, and antioxidant activity than the bulb. Their superior activity might be due to the higher content of total saponin and terpenes. This result will lead to further in-depth research towards the potential use of this plant; the bio-constituents can be further isolated and used in medical and therapeutic applications.
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Tan Y, Deng W, Zhang Y, Ke M, Zou B, Luo X, Su J, Wang Y, Xu J, Nandakumar KS, Liu Y, Zhou X, Li X. A marine fungus-derived nitrobenzoyl sesquiterpenoid suppresses receptor activator of NF-κB ligand-induced osteoclastogenesis and inflammatory bone destruction. Br J Pharmacol 2020; 177:4242-4260. [PMID: 32608081 DOI: 10.1111/bph.15179] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Revised: 05/15/2020] [Accepted: 06/10/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND AND PURPOSE Osteoclasts are unique cells to absorb bone. Targeting osteoclast differentiation is a therapeutic strategy for osteolytic diseases. Natural marine products have already become important sources of new drugs. The naturally occurring nitrobenzoyl sesquiterpenoids first identified from marine fungi in 1998 are bioactive compounds with a special structure, but their pharmacological functions are largely unknown. Here, we investigated six marine fungus-derived nitrobenzoyl sesquiterpenoids on osteoclastogenesis and elucidated the mechanisms. EXPERIMENTAL APPROACH Compounds were first tested by RANKL-induced NF-κB luciferase activity and osteoclastic TRAP assay, followed by molecular docking to characterize the structure-activity relationship. The effects and mechanisms of the most potent nitrobenzoyl sesquiterpenoid on RANKL-induced osteoclastogenesis and bone resorption were further evaluated in vitro. Micro-CT and histology analysis were used to assess the prevention of bone destruction by nitrobenzoyl sesquiterpenoids in vivo. KEY RESULTS Nitrobenzoyl sesquiterpenoid 4, with a nitrobenzoyl moiety at C-14 and a hydroxyl group at C-9, was the most active compound on NF-κB activity and osteoclastogenesis. Consequently, nitrobenzoyl sesquiterpenoid 4 exhibited suppression of RANKL-induced osteoclastogenesis and bone resorption from 0.5 μM. It blocked RANKL-induced IκBa phosphorylation, NF-κB p65 and RelB nuclear translocation, NFATc1 activation, reduced DC-STAMP but not c-Fos expression during osteoclastogenesis in vitro. Nitrobenzoyl sesquiterpenoid 4 also ameliorated LPS-induced osteolysis in vivo. CONCLUSION AND IMPLICATIONS These results highlighted nitrobenzoyl sesquiterpenoid 4 as a novel inhibitor of osteoclast differentiation. This marine-derived sesquiterpenoid is a promising lead compound for the treatment of osteolytic diseases.
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Affiliation(s)
- Yanhui Tan
- Laboratory of Anti-inflammatory and Immunomodulatory Pharmacology, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Wende Deng
- Laboratory of Anti-inflammatory and Immunomodulatory Pharmacology, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Yueyang Zhang
- Laboratory of Anti-inflammatory and Immunomodulatory Pharmacology, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Minhong Ke
- Laboratory of Anti-inflammatory and Immunomodulatory Pharmacology, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Binhua Zou
- Laboratory of Anti-inflammatory and Immunomodulatory Pharmacology, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Xiaowei Luo
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China
| | - Jianbin Su
- Laboratory of Anti-inflammatory and Immunomodulatory Pharmacology, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Yiyuan Wang
- Laboratory of Anti-inflammatory and Immunomodulatory Pharmacology, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Jialan Xu
- Laboratory of Anti-inflammatory and Immunomodulatory Pharmacology, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Kutty Selva Nandakumar
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Yonghong Liu
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China
| | - Xuefeng Zhou
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China
| | - Xiaojuan Li
- Laboratory of Anti-inflammatory and Immunomodulatory Pharmacology, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
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Marine Terpenoids from Polar Latitudes and Their Potential Applications in Biotechnology. Mar Drugs 2020; 18:md18080401. [PMID: 32751369 PMCID: PMC7459527 DOI: 10.3390/md18080401] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 07/24/2020] [Accepted: 07/25/2020] [Indexed: 01/03/2023] Open
Abstract
Polar marine biota have adapted to thrive under one of the ocean’s most inhospitable scenarios, where extremes of temperature, light photoperiod and ice disturbance, along with ecological interactions, have selected species with a unique suite of secondary metabolites. Organisms of Arctic and Antarctic oceans are prolific sources of natural products, exhibiting wide structural diversity and remarkable bioactivities for human applications. Chemical skeletons belonging to terpene families are the most commonly found compounds, whereas cytotoxic antimicrobial properties, the capacity to prevent infections, are the most widely reported activities from these environments. This review firstly summarizes the regulations on access and benefit sharing requirements for research in polar environments. Then it provides an overview of the natural product arsenal from Antarctic and Arctic marine organisms that displays promising uses for fighting human disease. Microbes, such as bacteria and fungi, and macroorganisms, such as sponges, macroalgae, ascidians, corals, bryozoans, echinoderms and mollusks, are the main focus of this review. The biological origin, the structure of terpenes and terpenoids, derivatives and their biotechnological potential are described. This survey aims to highlight the chemical diversity of marine polar life and the versatility of this group of biomolecules, in an effort to encourage further research in drug discovery.
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26
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Zhou P, Hu J, Wen B, Ding J, Lou B, Xiong J, Yang G, Hu J. Sesquiterpenoids from Pilea aquarum subsp. brevicornuta. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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27
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Abstract
This review highlights the progress on the isolation, bioactivity, biogenesis and total synthesis of dimeric sesquiterpenoids since 2010.
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Affiliation(s)
- Lie-Feng Ma
- College of Pharmaceutical Science
- Zhejiang University of Technology
- Hangzhou
- P. R. China
| | - Yi-Li Chen
- College of Pharmaceutical Science
- Zhejiang University of Technology
- Hangzhou
- P. R. China
| | - Wei-Guang Shan
- College of Pharmaceutical Science
- Zhejiang University of Technology
- Hangzhou
- P. R. China
| | - Zha-Jun Zhan
- College of Pharmaceutical Science
- Zhejiang University of Technology
- Hangzhou
- P. R. China
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28
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Hoshi T, Ota E, Inokuma Y, Yamaguchi J. Asymmetric Synthesis of a 5,7-Fused Ring System Enabled by an Intramolecular Buchner Reaction with Chiral Rhodium Catalyst. Org Lett 2019; 21:10081-10084. [PMID: 31808701 DOI: 10.1021/acs.orglett.9b04048] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
A Rh-catalyzed asymmetric intramolecular Buchner ring expansion of α-alkyl-α-diazoesters has been developed. The present protocol generates a 5,7-fused ring system in an enantioselective manner while minimizing β-hydrogen migration, which has been a competing reaction when using α-alkyl-α-diazoesters. The ester functionality at the bridgehead position would be a useful synthetic handle for further derivatization to complex molecules including natural products.
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Affiliation(s)
- Takayuki Hoshi
- Department of Applied Chemistry , Waseda University , 3-4-1 Ohkubo , Shinjuku , Tokyo 169-8555 , Japan
| | - Eisuke Ota
- Department of Applied Chemistry , Waseda University , 3-4-1 Ohkubo , Shinjuku , Tokyo 169-8555 , Japan
| | - Yasuhide Inokuma
- Division of Applied Chemistry, Faculty of Engineering , Hokkaido University , Kita 13 Nishi 8 Kita-ku , Sapporo , Hokkaido 060-8628 , Japan
| | - Junichiro Yamaguchi
- Department of Applied Chemistry , Waseda University , 3-4-1 Ohkubo , Shinjuku , Tokyo 169-8555 , Japan
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29
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Potential Applications of Guayulins to Improve Feasibility of Guayule Cultivation. AGRONOMY-BASEL 2019. [DOI: 10.3390/agronomy9120804] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Guayule (Parthenium argentatum Gray) is an interesting alternative and renewable source of rubber/latex which has been used in the past. Guayule rubber and latex products are not available in the market largely because the raw material cost is higher than the current sources produced in South-East Asia and other tropical countries (Hevea brasiliensis). Guayule contains many other compounds whose joint exploitation could make guayule cultivation profitable, especially in semi-desert areas where cultivation of other crops is difficult or impossible. Guayulins A–D, sesquiterpene esters, appear to have some commercial promise. Despite being accumulated in relatively high concentrations (its majority representative, guayulin A, can account for up to 13.7% of the resin content of this plant, which itself ranges from 6%–12%), guayulins have received little direct attention from scientists. This review presents the current knowledge about the activity of these compounds and, based on known activities of similar compounds from other species, potential uses as fungicides, miticides and insecticides are suggested.
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Antoniak D, Barbasiewicz M. Corey-Chaykovsky Cyclopropanation of Nitronaphthalenes: Access to Benzonorcaradienes and Related Systems. Org Lett 2019; 21:9320-9325. [PMID: 31710231 DOI: 10.1021/acs.orglett.9b03375] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Nitronaphthalene derivatives react as Michael acceptors in the Corey-Chaykovsky reaction with alkyl phenyl selenones and alkyl diphenyl sulfonium salts. Mechanistic studies reveal that sterically demanding substituents at the carbanionic center favor formation of cyclopropanes and suppress competitive β-elimination to the alkylated products. The transformation, demonstrated also on heterocyclic nitroquinoline and nitroindazolines, is an example of transition metal-free dearomatization method.
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Affiliation(s)
- Damian Antoniak
- Faculty of Chemistry , University of Warsaw , Pasteura 1 , 02-093 Warsaw , Poland
| | - Michał Barbasiewicz
- Faculty of Chemistry , University of Warsaw , Pasteura 1 , 02-093 Warsaw , Poland
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31
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Insect Antifeedant Components of Senecio fistulosus var. fistulosus-Hualtata. PLANTS 2019; 8:plants8060176. [PMID: 31208057 PMCID: PMC6631464 DOI: 10.3390/plants8060176] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Revised: 05/17/2019] [Accepted: 06/05/2019] [Indexed: 11/17/2022]
Abstract
From a bioactive methanolic extract of Senecio fistulosus, the antifeedant effects of the alkaloidal and non-alkaloidal fractions were tested against the insects Spodoptera littoralis, Myzus persicae and Rhopalosiphum padi, with the non-alkaloidal fraction being antifeedant. The phytochemical study of the non-alkaloidal fraction of S. fistulosus, resulted in the isolation of four compounds, two 9-oxo-furanoeremophilanes (1, 2), an eremophilanolide, 1β,10β-epoxy-6-acetoxy-8α-hydroxy-eremofil-7(11)-en-8β,12-olide (3) and a maaliol derivative (4). The alkaloidal fraction yielded two known pyrrolizidine alkaloids (5, 6). Compounds 1, 3 and 4 are new natural products. Furanoeremophilane 2 was a strong antifeedant against S. littoralis and maaliane 4 inhibited the settling of M. persicae.
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32
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Allouche EMD, Charette AB. Non-stabilized diazoalkane synthesis via the oxidation of free hydrazones by iodosylbenzene and application in in situ MIRC cyclopropanation. Chem Sci 2019; 10:3802-3806. [PMID: 31015921 PMCID: PMC6457201 DOI: 10.1039/c8sc05558k] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Accepted: 02/18/2019] [Indexed: 12/15/2022] Open
Abstract
Electron-rich alkyl diazo compounds are powerful reagents in organic synthesis, but the risks associated with their toxicity and instability often limit their uses. Herein we describe an efficient, easy-to-handle and safe batch protocol for the in situ generation and cyclopropanation of these highly reactive non-stabilized diazoalkanes through the oxidation of free hydrazones using iodosylbenzene. Numerous substituted cyclopropanes have been synthesized using this methodology, including various gem-dimethylcyclopropanes of particular interest in medicinal chemistry.
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Affiliation(s)
- Emmanuelle M D Allouche
- Department of Chemistry , Université de Montréal , P. O. Box 6128 Station Downtown , Montreal , Quebec , H3C 3J7 Canada .
| | - André B Charette
- Department of Chemistry , Université de Montréal , P. O. Box 6128 Station Downtown , Montreal , Quebec , H3C 3J7 Canada .
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33
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Wang LX, Jiang XJ, Li XM, Mao MF, Wei GZ, Wang F. Aristolane-type Sesquiterpenoids from Nardostachys chinensis and Revised Structure of Aristolanhydride. NATURAL PRODUCTS AND BIOPROSPECTING 2019; 9:149-155. [PMID: 30848431 PMCID: PMC6426942 DOI: 10.1007/s13659-019-0200-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Accepted: 02/21/2019] [Indexed: 06/09/2023]
Abstract
Four hitherto unknown aristolane-type sesquiterpenes, including one novel 8,9-secoaristolane, namely secoaristolenedioic acid (1), two aristolone derivatives, namely 1α,2β-dihydroxyaristolone (2), 9-epidebilon (3), and one rare aristolane-chalcone hybrid, namely 3'-hydroxynardoaristolone A (4) were isolated from the ethanol extract of the roots and rhizomes of Nardostachys chinensis. Their structures were elucidated on the basis of extensive spectroscopic analysis. In addition, the structure of aristolanhydride, recently isolated from the same species, was corrected by reanalysis of the published NMR data.
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Affiliation(s)
- Li-Xia Wang
- BioBioPha Co., Ltd., Kunming, 650201, People's Republic of China
- Reference Substances Sub-center, National Engineering Research Center for Modernization of Traditional Chinese Medicine, Kunming, 650201, People's Republic of China
| | - Xian-Jun Jiang
- BioBioPha Co., Ltd., Kunming, 650201, People's Republic of China
- Reference Substances Sub-center, National Engineering Research Center for Modernization of Traditional Chinese Medicine, Kunming, 650201, People's Republic of China
| | - Xiang-Mei Li
- BioBioPha Co., Ltd., Kunming, 650201, People's Republic of China
- Reference Substances Sub-center, National Engineering Research Center for Modernization of Traditional Chinese Medicine, Kunming, 650201, People's Republic of China
| | - Mei-Fen Mao
- BioBioPha Co., Ltd., Kunming, 650201, People's Republic of China
- Reference Substances Sub-center, National Engineering Research Center for Modernization of Traditional Chinese Medicine, Kunming, 650201, People's Republic of China
| | - Guo-Zhu Wei
- BioBioPha Co., Ltd., Kunming, 650201, People's Republic of China
- Reference Substances Sub-center, National Engineering Research Center for Modernization of Traditional Chinese Medicine, Kunming, 650201, People's Republic of China
| | - Fei Wang
- BioBioPha Co., Ltd., Kunming, 650201, People's Republic of China.
- Reference Substances Sub-center, National Engineering Research Center for Modernization of Traditional Chinese Medicine, Kunming, 650201, People's Republic of China.
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34
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Yuan Y, Litzenburger M, Cheng S, Bian G, Hu B, Yan P, Cai Y, Deng Z, Bernhardt R, Liu T. Sesquiterpenoids Produced by Combining Two Sesquiterpene Cyclases with Promiscuous Myxobacterial CYP260B1. Chembiochem 2019; 20:677-682. [PMID: 30484946 DOI: 10.1002/cbic.201800670] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2018] [Indexed: 01/09/2023]
Abstract
Sesquiterpenes represent a class of important terpenoids with high structural diversity and a wide range of applications. The cyclized core skeletons are generated by sesquiterpene cyclases, and the structural diversity is further increased by a series of modification steps. Cytochromes P450 (P450s) are a class of monooxygenases and one of the main contributors to the structural diversity of natural products. Some of these P450s show a broad substrate range and might be promising candidates for the implementation of cascade reactions. In this study, a combinatorial biosynthesis approach was utilized by the combination of a promiscuous myxobacterial P450 (CYP260B1) with two sesquiterpene cyclases (FgJ01056, FgJ09920) of filamentous fungi. Two oxygenated products, culmorin and culmorone, and a new compound, koraidiol, were successfully generated and characterized. This approach suggests the potential use of noncognate P450s to produce novel oxygenated terpenoids, or to generate a novel biosynthetic route for known terpenoids by a combinatorial biosynthesis strategy.
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Affiliation(s)
- Yujie Yuan
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education and School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, P.R. China
| | - Martin Litzenburger
- Department of Biochemistry, Saarland University, Campus B2.2, 66123, Saarbrücken, Germany
| | - Shu Cheng
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education and School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, P.R. China
| | - Guangkai Bian
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education and School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, P.R. China
| | - Ben Hu
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education and School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, P.R. China
| | - Pan Yan
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education and School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, P.R. China
| | - Yousheng Cai
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education and School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, P.R. China
| | - Zixin Deng
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education and School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, P.R. China
| | - Rita Bernhardt
- Department of Biochemistry, Saarland University, Campus B2.2, 66123, Saarbrücken, Germany
| | - Tiangang Liu
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education and School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, P.R. China.,Hubei Engineering Laboratory for Synthetic Microbiology, Wuhan Institute of Biotechnology, Wuhan, 430075, P.R. China
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Sagbo I, Otang-Mbeng W. Gas chromatography–mass spectrometry analysis of the volatile compounds from the ethanol extracts of Bulbine asphodeloides and Helichrysum petiolare. Pharmacognosy Res 2019. [DOI: 10.4103/pr.pr_26_19] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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36
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Enantioselective Lactonization of 3,3,6-Trimethyl-4(E)-heptenoic Acid Esters. J CHEM-NY 2018. [DOI: 10.1155/2018/6135281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Studies on the use of lactonization in the asymmetric synthesis of 6,6-dimethyl-4-isopropyl-3-oxabicyclo[3.1.0]hexan-2-one were described. An asymmetrically induced lactonization reaction was performed on 3,3,6-trimethyl-4(E)-heptenoic acid esters (1) and enantiomerically pure alcohols such as (−)-menthol (a), (+)-menthol (b), (−)-borneol (c), (+)-isomenthol (d), (−)-isopinocampheol (e), and (S)-(−)-1-(2-bornylphenyl)-1-ethanol (f). The enantiomerically pure alcohols that were used as ancillary chiral substances were characterized by markedly different values of induction power; menthol (a, b), borneol (c), and phenetyl alcohol (f) performed better in asymmetric δ-lactonization, whereas isomenthol (d) and isopinocampheol (e) tended to favor asymmetric γ-lactonization.
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37
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Deng X, Wang Y, Wu HH, Zhang W, Dong X, Wang Z, Zhu Y, Gao XM, Li L, Wang YN, Xu YT. Six kanshone C-derived sesquiterpenoid hybrids nardochalaristolones A–D, nardoflavaristolone A and dinardokanshone F from Nardostachys jatamansi DC. Bioorg Chem 2018; 81:35-43. [DOI: 10.1016/j.bioorg.2018.07.030] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Revised: 07/29/2018] [Accepted: 07/30/2018] [Indexed: 10/28/2022]
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38
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Plagiochiline A Inhibits Cytokinetic Abscission and Induces Cell Death. Molecules 2018; 23:molecules23061418. [PMID: 29895732 PMCID: PMC6099941 DOI: 10.3390/molecules23061418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Accepted: 06/08/2018] [Indexed: 11/17/2022] Open
Abstract
We previously reported on the isolation and biological activities of plagiochiline A (1), a 2,3-secoaromadendrane-type sesquiterpenoid from the Peruvian medicinal plant, Plagiochila disticha. This compound was found to have antiproliferative effects on a variety of solid tumor cell lines, as well as several leukemia cell lines. Other researchers have also noted the cytotoxicity of plagiochiline A (isolated from different plant species), but there are no prior reports regarding the mechanism for this bioactivity. Here, we have evaluated the effects of plagiochiline A on cell cycle progression in DU145 prostate cancer cells. A cell cycle analysis indicated that plagiochiline A caused a significant increase in the percentage of cells in the G2/M phase when compared with control cells. When cells were stained and observed by fluorescence microscopy to examine progress through the mitotic phase, we found a significant increase in the proportion of cells with features of late cytokinesis (cells connected by intercellular bridges) in the plagiochiline A-treated samples. These results suggest that plagiochiline A inhibits cell division by preventing completion of cytokinesis, particularly at the final abscission stage. We also determined that plagiochiline A reduces DU145 cell survival in clonogenic assays and that it induces substantial cell death in these cells.
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39
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Métoyer B, Lebouvier N, Hnawia E, Herbette G, Thouvenot L, Asakawa Y, Nour M, Raharivelomanana P. Chemotypes and Biomarkers of Seven Species of New Caledonian Liverworts from the Bazzanioideae Subfamily. Molecules 2018; 23:E1353. [PMID: 29874780 PMCID: PMC6100190 DOI: 10.3390/molecules23061353] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Revised: 05/30/2018] [Accepted: 05/31/2018] [Indexed: 12/26/2022] Open
Abstract
Volatile components of seven species of the Bazzanioideae sub-family (Lepidoziaceae) native to New Caledonia, including three endemic species (Bazzania marginata, Acromastigum caledonicum and A. tenax), were analyzed by GC-FID-MS in order to index these plants to known or new chemotypes. Detected volatile constituents in studied species were constituted mainly by sesquiterpene, as well as diterpene compounds. All so-established compositions cannot successfully index some of them to known chemotypes but afforded the discovery of new chemotypes such as cuparane/fusicoccane. The major component of B. francana was isolated and characterized as a new zierane-type sesquiterpene called ziera-12(13),10(14)-dien-5-ol (23). In addition, qualitative intraspecies variations of chemical composition were very important particularly for B. francana which possessed three clearly defined different compositions. We report here also the first phytochemical investigation of Acromastigum species. Moreover, crude diethyl ether extract of B. vitatta afforded a new bis(bibenzyl) called vittatin (51), for which a putative biosynthesis was suggested.
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Affiliation(s)
- Benjamin Métoyer
- Institut des Sciences Exactes et Appliquées (ISEA) EA 7484, Université de la Nouvelle-Calédonie, 98851 Nouméa, New Caledonia.
| | - Nicolas Lebouvier
- Institut des Sciences Exactes et Appliquées (ISEA) EA 7484, Université de la Nouvelle-Calédonie, 98851 Nouméa, New Caledonia.
| | - Edouard Hnawia
- Institut des Sciences Exactes et Appliquées (ISEA) EA 7484, Université de la Nouvelle-Calédonie, 98851 Nouméa, New Caledonia.
| | - Gaëtan Herbette
- Aix Marseille Univ, CNRS, Centrale Marseille, FSCM, Spectropole, Service 511, Campus Saint-Jérome, 13397 Marseille CEDEX 20, France.
| | - Louis Thouvenot
- Independent Researcher, 11, Rue Saint-Léon, 66000 Perpignan, France.
| | - Yoshinori Asakawa
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Tokushima 7708514, Japan.
| | - Mohammed Nour
- Institut des Sciences Exactes et Appliquées (ISEA) EA 7484, Université de la Nouvelle-Calédonie, 98851 Nouméa, New Caledonia.
| | - Phila Raharivelomanana
- UMR 241 EIO, Université de la Polynésie Française, 98702 Faaa, Tahiti, French Polynesia.
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40
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Jesionek A, Poblocka-Olech L, Zabiegala B, Bucinski A, Krauze-Baranowska M, Luczkiewicz M. Validated HPTLC method for determination of ledol and alloaromadendrene in the essential oil fractions of Rhododendron tomentosum plants and in vitro cultures and bioautography for their activity screening. J Chromatogr B Analyt Technol Biomed Life Sci 2018; 1086:63-72. [DOI: 10.1016/j.jchromb.2018.04.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2017] [Revised: 03/06/2018] [Accepted: 04/06/2018] [Indexed: 02/06/2023]
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41
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Rullière P, Benoit G, Allouche EMD, Charette AB. Safe and Facile Access to Nonstabilized Diazoalkanes Using Continuous Flow Technology. Angew Chem Int Ed Engl 2018; 57:5777-5782. [DOI: 10.1002/anie.201802092] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Indexed: 11/07/2022]
Affiliation(s)
- Pauline Rullière
- Faculty of Arts and Sciences; Department of Chemistry; Université de Montreal; P.O. Box 6128 Station Downtown Montreal Quebec H3C 3J7 Canada
| | - Guillaume Benoit
- Faculty of Arts and Sciences; Department of Chemistry; Université de Montreal; P.O. Box 6128 Station Downtown Montreal Quebec H3C 3J7 Canada
| | - Emmanuelle M. D. Allouche
- Faculty of Arts and Sciences; Department of Chemistry; Université de Montreal; P.O. Box 6128 Station Downtown Montreal Quebec H3C 3J7 Canada
| | - André B. Charette
- Faculty of Arts and Sciences; Department of Chemistry; Université de Montreal; P.O. Box 6128 Station Downtown Montreal Quebec H3C 3J7 Canada
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42
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Rullière P, Benoit G, Allouche EMD, Charette AB. Safe and Facile Access to Nonstabilized Diazoalkanes Using Continuous Flow Technology. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201802092] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Pauline Rullière
- Faculty of Arts and Sciences; Department of Chemistry; Université de Montreal; P.O. Box 6128 Station Downtown Montreal Quebec H3C 3J7 Canada
| | - Guillaume Benoit
- Faculty of Arts and Sciences; Department of Chemistry; Université de Montreal; P.O. Box 6128 Station Downtown Montreal Quebec H3C 3J7 Canada
| | - Emmanuelle M. D. Allouche
- Faculty of Arts and Sciences; Department of Chemistry; Université de Montreal; P.O. Box 6128 Station Downtown Montreal Quebec H3C 3J7 Canada
| | - André B. Charette
- Faculty of Arts and Sciences; Department of Chemistry; Université de Montreal; P.O. Box 6128 Station Downtown Montreal Quebec H3C 3J7 Canada
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43
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Antartin, a Cytotoxic Zizaane-Type Sesquiterpenoid from a Streptomyces sp. Isolated from an Antarctic Marine Sediment. Mar Drugs 2018; 16:md16040130. [PMID: 29659509 PMCID: PMC5923417 DOI: 10.3390/md16040130] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 04/10/2018] [Accepted: 04/11/2018] [Indexed: 12/13/2022] Open
Abstract
Antartin (1), a new zizaane-type sesquiterpene, was isolated from Streptomyces sp. SCO736. The chemical structure of 1 was assigned from the interpretation of 1D and 2D NMR in addition to mass spectrometric data. The relative stereochemistry of 1 was determined by analysis of NOE data, while the absolute stereochemistry was decided based on a comparison of experimental and calculated electronic circular dichroism (ECD) spectra. Antartin (1) showed cytotoxicity against A549, H1299, and U87 cancer cell lines by causing cell cycle arrest at the G1 phase.
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44
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Piazza LA, López D, Silva MP, López Rivilli MJ, Tourn MG, Cantero JJ, Scopel AL. Volatiles and Nonvolatiles in Flourensia campestris Griseb. (Asteraceae), How Much Do Capitate Glandular Trichomes Matter? Chem Biodivers 2018; 15:e1700511. [PMID: 29381265 DOI: 10.1002/cbdv.201700511] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Accepted: 01/25/2018] [Indexed: 01/16/2023]
Abstract
The distribution and ultrastructure of capitate glandular trichomes (GTs) in Flourensia species (Asteraceae) have been recently elucidated, but their metabolic activity and potential biological function remain unexplored. Selective nonvolatile metabolites from isolated GTs were strikingly similar to those found on leaf surfaces. The phytotoxic allelochemical sesquiterpene (-)-hamanasic acid A ((-)-HAA) was the major constituent (ca. 40%) in GTs. Although GTs are quaternary ammonium compounds (QACs)-accumulating species, glycine betaine was not found in GTs; it was only present in the leaf mesophyll. Two (-)-HAA accompanying surface secreted products: compounds 4-hydroxyacetophenone (piceol; 1) and 2-hydroxy-5-methoxyacetophenone (2), which were isolated and fully characterized (GC/MS, NMR), were present in the volatiles found in GTs. The essential oils of fresh leaves revealed ca. 33% monoterpenes, 26% hydrocarbon- and 30% oxygenated sesquiterpenes, most of them related to cadinene and bisabolene derivatives. Present results suggest a main role of GTs in determining the volatile and nonvolatile composition of F. campestris leaves. Based on the known activities of the compounds identified, it can be suggested that GTs in F. campestris would play key ecological functions in plant-pathogen and plant-plant interactions. In addition, the strikingly high contribution of compounds derived from cadinene and bisabolene pathways, highlights the potential of this species as a source of high-valued bioproducts.
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Affiliation(s)
- Leonardo A Piazza
- Facultad de Agronomía - Sede Punilla, Universidad de Buenos Aires, Casilda S/N, Huerta Grande, Córdoba, 5174, Argentina
| | - Daniela López
- Instituto de Investigaciones en Biociencias Agrícolas y Ambientales (INBA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Facultad de Agronomía, San Martín 4453, Universidad de Buenos Aires, Buenos Aires, 1417, Argentina
| | - Mariana P Silva
- Instituto de Investigaciones en Biociencias Agrícolas y Ambientales (INBA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Facultad de Agronomía, San Martín 4453, Universidad de Buenos Aires, Buenos Aires, 1417, Argentina
| | - Marisa J López Rivilli
- Facultad de Agronomía - Sede Punilla, Universidad de Buenos Aires, Casilda S/N, Huerta Grande, Córdoba, 5174, Argentina
| | - Mónica G Tourn
- Facultad de Agronomía - Sede Punilla, Universidad de Buenos Aires, Casilda S/N, Huerta Grande, Córdoba, 5174, Argentina
| | - Juan J Cantero
- Cátedra de Botánica Sistemática Agrícola, Facultad de Agronomía y Veterinaria, Universidad de Río Cuarto, Río Cuarto, Córdoba, 5800, Argentina.,Instituto Multidisciplinario de Biología Vegetal (IMBIV), CONICET, Universidad Nacional de Córdoba, Córdoba, 5000, Argentina
| | - Ana L Scopel
- Facultad de Agronomía - Sede Punilla, Universidad de Buenos Aires, Casilda S/N, Huerta Grande, Córdoba, 5174, Argentina.,Instituto de Investigaciones en Biociencias Agrícolas y Ambientales (INBA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Facultad de Agronomía, San Martín 4453, Universidad de Buenos Aires, Buenos Aires, 1417, Argentina
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45
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Müller DS, Werner V, Akyol S, Schmalz HG, Marek I. Tandem Hydroalumination/Cu-Catalyzed Asymmetric Vinyl Metalation as a New Access to Enantioenriched Vinylcyclopropane Derivatives. Org Lett 2017; 19:3970-3973. [DOI: 10.1021/acs.orglett.7b01661] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Daniel S. Müller
- The
Mallat Family Laboratory of Organic Chemistry, Schulich Faculty of
Chemistry and Lise Meitner-Minerva Center for Computational Quantum
Chemistry, Technion-Israel Institute of Technology, Technion City, Haifa 32000, Israel
| | - Veronika Werner
- The
Mallat Family Laboratory of Organic Chemistry, Schulich Faculty of
Chemistry and Lise Meitner-Minerva Center for Computational Quantum
Chemistry, Technion-Israel Institute of Technology, Technion City, Haifa 32000, Israel
| | - Sema Akyol
- University of Cologne, Department of Chemistry, Greinstrasse 4, 50939 Koeln, Germany
| | - Hans-Günther Schmalz
- University of Cologne, Department of Chemistry, Greinstrasse 4, 50939 Koeln, Germany
| | - Ilan Marek
- The
Mallat Family Laboratory of Organic Chemistry, Schulich Faculty of
Chemistry and Lise Meitner-Minerva Center for Computational Quantum
Chemistry, Technion-Israel Institute of Technology, Technion City, Haifa 32000, Israel
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46
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Le Bideau F, Kousara M, Chen L, Wei L, Dumas F. Tricyclic Sesquiterpenes from Marine Origin. Chem Rev 2017; 117:6110-6159. [DOI: 10.1021/acs.chemrev.6b00502] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Franck Le Bideau
- BioCIS,
Faculty of Pharmacy, Université Paris-Sud, CNRS, Université Paris-Saclay, 92290, Châtenay-Malabry, France
| | - Mohammad Kousara
- BioCIS,
Faculty of Pharmacy, Université Paris-Sud, CNRS, Université Paris-Saclay, 92290, Châtenay-Malabry, France
- Faculty
of Pharmacy, Al Andalus University, P.O. Box 101, Tartus, Al Qadmus, Syria
| | - Li Chen
- BioCIS,
Faculty of Pharmacy, Université Paris-Sud, CNRS, Université Paris-Saclay, 92290, Châtenay-Malabry, France
| | - Lai Wei
- BioCIS,
Faculty of Pharmacy, Université Paris-Sud, CNRS, Université Paris-Saclay, 92290, Châtenay-Malabry, France
| | - Françoise Dumas
- BioCIS,
Faculty of Pharmacy, Université Paris-Sud, CNRS, Université Paris-Saclay, 92290, Châtenay-Malabry, France
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Nonhalogenated Heterotricyclic Sesquiterpenes From Marine Origin I. STUDIES IN NATURAL PRODUCTS CHEMISTRY 2017. [DOI: 10.1016/b978-0-444-63931-8.00007-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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de Sena Filho JG, Barreto IC, Soares Filho AO, Nogueira PCL, Teodoro AV, Cruz da Silva AV, Xavier HS, Rabbani ARC, Spakowicz DJ, Duringer JM. Volatile Metabolomic Composition of Vitex Species: Chemodiversity Insights and Acaricidal Activity. FRONTIERS IN PLANT SCIENCE 2017; 8:1931. [PMID: 29184560 PMCID: PMC5694497 DOI: 10.3389/fpls.2017.01931] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Accepted: 10/25/2017] [Indexed: 05/12/2023]
Abstract
The Vitex genus (Lamiaceae) produces a plethora of metabolites that include ecdysteroids and terpenoids, some of which have demonstrated insect repellent properties. The volatile composition of several members of this genus has not been chemically defined, as many taxa are endemic to remote ecosystems. In this study, leaves were collected from the northeast of Brazil from Vitex capitata, V. megapotamica, V. gardneriana, and V. rufescens plants and examined for their chemical profile via GC-MS/FID of essential oil extracts. The analyses showed a diversity of terpenoids. Of particular note were seven-member ring sesquiterpenes which were present in great abundance; a dendrogram showed clades separating by the production of bicyclogermacrene, aromadendrane and 5,10-cycloaromadendrane sesquiterpenoids for the four species. Comparison of volatile metabolite profiles to 13 other Vitex species showed strong similarities in the production of some monoterpenes, but varied by their production of larger terpenes, especially those with gem-dimethylcyclopropyl subunits on seven-member ring compounds. From this work, we suggest that the sesquiterpene skeleton with seven member rings is a good chemosystematic biomarker candidate for the Vitex genus. Separation using this biomarker was then validated using Inter-Simple Sequence Repeat profiling. Lastly, experiments examining the toxicity of these four oils against the coconut mite Aceria guerreronis showed that only the oil of V. gardneriana had strong acaricidal activity, with an LC50 of 0.85 mg/mL, thus demonstrating its potential for use as a natural pesticide.
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Affiliation(s)
- José G. de Sena Filho
- Empresa Brasileira de Pesquisa Agropecuária – EMBRAPA Tabuleiros Costeiros, Aracaju, Brazil
| | - Ighor C. Barreto
- Empresa Brasileira de Pesquisa Agropecuária – EMBRAPA Tabuleiros Costeiros, Aracaju, Brazil
| | - Avaldo O. Soares Filho
- Herbário HUESBVC, Departamento de Ciências Naturais, Universidade Estadual do Sudoeste da Bahia, Conquista, Brazil
| | - Paulo C. L. Nogueira
- Laboratório de Pesquisa em Química Orgânica de Sergipe, Departamento de Química – CCET, Universidade Federal de Sergipe, São Cristóvão, Brazil
| | - Adenir V. Teodoro
- Empresa Brasileira de Pesquisa Agropecuária – EMBRAPA Tabuleiros Costeiros, Aracaju, Brazil
| | - Ana V. Cruz da Silva
- Empresa Brasileira de Pesquisa Agropecuária – EMBRAPA Tabuleiros Costeiros, Aracaju, Brazil
| | - Haroudo S. Xavier
- Departamento de Ciências Farmacêuticas, Universidade Federal de Pernambuco, Recife, Brazil
| | - Allívia R. C. Rabbani
- Bahia Federal Institute of Education, Science and Technology – IFBA, Porto Seguro, Brazil
| | - Daniel J. Spakowicz
- Program in Comparative Biology and Bioinformatics, Yale University, New Haven, CT, United States
| | - Jennifer M. Duringer
- Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, OR, United States
- *Correspondence: Jennifer M. Duringer,
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49
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Phan CS, Vairappan CS. Capgermacrenes D-G, new sesquiterpenoids from a Bornean soft coral, Capnella imbricata. Nat Prod Res 2016; 31:742-748. [PMID: 27750446 DOI: 10.1080/14786419.2016.1241997] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Four new bicyclogermacrenes, capgermacrenes D (1) E (2) F (3) and G (4) were isolated from a population of Bornean soft coral Capnella imbricata. The structures of these metabolites were elucidated based on their nuclear magnetic resonance and high-resolution electrospray ionisation mass spectrometry spectral data. These compounds showed bacteriastatic and bacteriacidal activities against Staphylococcus aureus and methicillin-resistant Staphylococcus aureus.
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Affiliation(s)
- Chin-Soon Phan
- a Laboratory of Natural Products Chemistry , Institute for Tropical Biology and Conservation, Universiti of Malaysia Sabah , Kota Kinabalu , Malaysia
| | - Charles Santhanaraju Vairappan
- a Laboratory of Natural Products Chemistry , Institute for Tropical Biology and Conservation, Universiti of Malaysia Sabah , Kota Kinabalu , Malaysia
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Chraibi M, Farah A, Lebrazi S, El Amine O, Iraqui Houssaini M, Fikri-Benbrahim K. Antimycobacterial natural products from Moroccan medicinal plants: Chemical composition, bacteriostatic and bactericidal profile of Thymus satureioides and Mentha pulegium essential oils. Asian Pac J Trop Biomed 2016. [DOI: 10.1016/j.apjtb.2016.08.002] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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