1
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Liu P, Yang Y, Zhou Z, Zhang X, Liu X, Li J. Mitochondrial targeted modification and anticancer mechanism of natural product ergosterol peroxide. Bioorg Chem 2024; 151:107688. [PMID: 39106712 DOI: 10.1016/j.bioorg.2024.107688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2024] [Revised: 07/29/2024] [Accepted: 07/29/2024] [Indexed: 08/09/2024]
Abstract
Ergosterol peroxide (EP) isolated from the edible medicinal fungus Pleurotus ferulae has a wide range of anti-tumor activity, but poor water solubility and low bioavailability limit further application. In this study, EP was structurally modified using triphenylphosphine (TPP+), which combines mitochondrial targeting, amphiphilicity, and cytotoxicity. A series of TPP+-conjugated ergosterol peroxide derivatives (TEn) with different length linker arms were synthesized. The structure-activity relationship showed that the anticancer activity of TEn gradually decreased with the elongation of the linker arm. The compound TE3 has the optimal and broadest spectrum of antitumor effects. It mainly through targeting mitochondria, inducing ROS production, disrupting mitochondrial function, and activating mitochondria apoptosis pathway to exert anti-cervical cancer activity. Among them, TPP+ only acted as a mitochondrial targeting group, while EP containing peroxide bridge structure served as an active group to induce ROS. In vivo experiments have shown that TE3 has better anti-cervical cancer activity and safety than the first-line anticancer drug cisplatin, and can activate the immune response in mice. Although TE3 exhibits some acute toxicity, it is not significant at therapeutic doses. Therefore, TE3 has the potential for further development as an anti-cervical cancer drug.
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Affiliation(s)
- Peng Liu
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science and Technology, Xinjiang University, Urumqi 830046, China
| | - Yuhao Yang
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science and Technology, Xinjiang University, Urumqi 830046, China
| | - Zhe Zhou
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science and Technology, Xinjiang University, Urumqi 830046, China
| | - Ximeng Zhang
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science and Technology, Xinjiang University, Urumqi 830046, China
| | - Xuelian Liu
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science and Technology, Xinjiang University, Urumqi 830046, China; Institute of Materia Medica, Xinjiang University, Urumqi 830046, China.
| | - Jinyao Li
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science and Technology, Xinjiang University, Urumqi 830046, China; Institute of Materia Medica, Xinjiang University, Urumqi 830046, China.
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2
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Ling T, Arroyo-Cruz LV, Smither WR, Seighman EK, Martínez-Montemayor MM, Rivas F. Early Preclinical Studies of Ergosterol Peroxide and Biological Evaluation of Its Derivatives. ACS OMEGA 2024; 9:37117-37127. [PMID: 39246459 PMCID: PMC11375702 DOI: 10.1021/acsomega.4c04350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Revised: 07/18/2024] [Accepted: 08/08/2024] [Indexed: 09/10/2024]
Abstract
Ganoderma lucidum is a medicinal mushroom that produces various pharmacological compounds, including triterpenoids. A major bioactive component of G. lucidum is ergosterol peroxide (EP), which is attributed to its anticancer effects. The current study focuses on the in vitro ADME (absorption, distribution, metabolism, and elimination), in vivo efficacy and toxicity of EP, and the synthesis of new EP derivatives to improve aqueous solubility. It was found that EP is metabolically stable in liver microsomes and plasma. In vivo studies showed that EP inhibits tumor growth in murine cancer models, and it is well tolerated by mice. The maximum tolerated dose was investigated in mice at escalating doses with a defined maximum amount of 500 mg/kg, which indicated no signs of toxicity, confirmed by plasma chemistry and analysis of harvested tissues. Complementary organ toxicity assays including cardio and hepatotoxicity assays of EP demonstrated no inhibitory effects. Next, a focused library of EP derivatives was developed to investigate the iterative addition of heteroatoms to improve the aqueous solubility properties of EP. Significant solubility improvement was observed by the introduction of hydrogen bonding promoting groups, particularly the sulfate group. Superior aqueous solubility properties are directly correlated with the biological activity of the compound against triple-negative breast cancer cellular (TNBC) models. The EP derivatives maintain ample therapeutic index at the tested concentrations, indicating they engage with the same biological target(s) as the parental compound (EP). The combined studies indicate that EP and its derivatives are selective TNBC cell death inducers, while sparing noncancerous tissue.
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Affiliation(s)
- Taotao Ling
- Department of Chemistry, Louisiana State University, 133 Chopping Hall, Baton Rouge, Louisiana 70803, United States
| | - Luz V Arroyo-Cruz
- Department of Biochemistry, Universidad Central del Caribe, School of Medicine, P.O. Box 60327, Bayamón, Puerto Rico 00960-6032, United States
| | - William R Smither
- Department of Chemistry, Louisiana State University, 133 Chopping Hall, Baton Rouge, Louisiana 70803, United States
| | - Emily K Seighman
- Department of Chemistry, Louisiana State University, 133 Chopping Hall, Baton Rouge, Louisiana 70803, United States
| | - Michelle M Martínez-Montemayor
- Department of Biochemistry, Universidad Central del Caribe, School of Medicine, P.O. Box 60327, Bayamón, Puerto Rico 00960-6032, United States
| | - Fatima Rivas
- Department of Chemistry, Louisiana State University, 133 Chopping Hall, Baton Rouge, Louisiana 70803, United States
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3
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Murata T, Komukai K, Semba Y, Murata E, Sato F, Takano T, Tsuchiya K, Matsuda C, Sakai A, Yoneoka A, Takahashi S, Nagahara Y, Shiina I. Synthesis of BODIPY FL-tethered ridaifen-B, RID-B-BODIPY, and its localization in cancer cells. Front Chem 2024; 12:1451468. [PMID: 39246721 PMCID: PMC11377228 DOI: 10.3389/fchem.2024.1451468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2024] [Accepted: 07/26/2024] [Indexed: 09/10/2024] Open
Abstract
We synthesized ridaifen-B boron dipyrromethene (RID-B-BODIPY) using 2-methyl-6-nitro benzoic anhydride (MNBA)-mediated dehydration condensation reaction between amino alkyl-tethered RID and BODIPY FL. Comparative experiments between dicyclohexylcarbodiimide (DCC) and MNBA for their coupling reactions demonstrated that MNBA is an effective condensation reagent for amines and BODIPY FL. A cell staining study with RID-B-BODIPY showed intracellular localization of BODIPY FL fluorescence, attributed to the RID-B structure, indicating the successful development of a tool for analyzing intracellular molecular behavior efficiently.
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Affiliation(s)
- Takatsugu Murata
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, Tokyo, Japan
| | - Kyoka Komukai
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, Tokyo, Japan
| | - Yuta Semba
- Division of Life Science and Engineering, College of Science and Engineering, Tokyo Denki University, Saitama, Japan
| | - Eri Murata
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, Tokyo, Japan
| | - Fumi Sato
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, Tokyo, Japan
| | - Tomohiro Takano
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, Tokyo, Japan
| | - Kaho Tsuchiya
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, Tokyo, Japan
| | - Chihiro Matsuda
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, Tokyo, Japan
| | - Anju Sakai
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, Tokyo, Japan
| | - Amane Yoneoka
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, Tokyo, Japan
| | - Shunsuke Takahashi
- Division of Life Science and Engineering, College of Science and Engineering, Tokyo Denki University, Saitama, Japan
| | - Yukitoshi Nagahara
- Division of Life Science and Engineering, College of Science and Engineering, Tokyo Denki University, Saitama, Japan
| | - Isamu Shiina
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, Tokyo, Japan
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4
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Asmaey MA, Hamed A, Shaaban M. Natural Peroxides from Plants: Historical Discovery, Biosynthesis, and Biological Activities. Chem Biodivers 2024:e202400644. [PMID: 38958342 DOI: 10.1002/cbdv.202400644] [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: 03/13/2024] [Revised: 07/01/2024] [Accepted: 07/03/2024] [Indexed: 07/04/2024]
Abstract
Naturally occurring peroxides received great interest and attention from scientific research groups worldwide due to their structural diversity, versatile biological activities, and pharmaceutical properties. In the present review, we describe the historical discovery of natural peroxides from plants systematically and update the researchers with recently explored ones justifying their structural caterogrization and biological/pharmaceutical properties intensively. Till the end of 2023, 192 peroxy natural products from plants were documented herein for the first time implying most categories of natural scaffolds (e. g. terpenes, polyketides, phenolics and alkaloids). Numerically, the reported plants' peroxides have been classified into seventy-four hydro-peroxides, hundred seven endo-peroxides and eleven acyl-peroxides. Endo-peroxides (cyclic alkyl peroxides) are an important group due to their high variety of structural frameworks, and we have further divided them into "four-, five-, six and seven"-membered rings. Biosynthetically, a shedding light on the intricate mechanisms behind the formation of plant-derived peroxides are addressed as well.
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Affiliation(s)
- Mostafa A Asmaey
- Department of Chemistry, Faculty of Science, Al-Azhar University, Assiut Branch, Assiut, 71524, Egypt
| | - Abdelaaty Hamed
- Chemistry Department, Faculty of Science, Al-Azhar University, Nasr City-Cairo, 11884, Egypt
| | - Mohamed Shaaban
- Chemistry of Natural Compounds Department, Pharmaceutical and Drug Industries Research Institute, National Research Centre, El-Buhouth St. 33, Dokki-Cairo, 12622, Egypt
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5
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Ning Y, Wang Y, Gui J. Bioinspired Two-Phase Synthesis of Gibbosterol A. JACS AU 2024; 4:635-641. [PMID: 38425898 PMCID: PMC10900487 DOI: 10.1021/jacsau.3c00698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 12/22/2023] [Accepted: 12/26/2023] [Indexed: 03/02/2024]
Abstract
The disecosteroid natural product gibbosterol A-which has a 14/5-bicyclic framework, a high oxidation state, and a twisted trans-9,11-epoxy motif-is the first water-soluble 5,10:8,9-disecosteroid. Herein, we report a bioinspired two-phase synthesis of this natural product in only 15 steps from inexpensive ergosterol. In the first (isomerase) phase, the core bicyclic framework is rapidly installed by the skeletal reorganization of ergosterol endoperoxide via a ruthenium-catalyzed dual C-C bond fragmentation. In the second (oxidase) phase, chemoselective, regioselective, and stereoselective redox transformations precisely introduce the requisite oxygenated functional groups. This work demonstrates that the ingenious two-phase synthesis logic that has been applied to terpenes is also a powerful strategy for steroid synthesis.
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Affiliation(s)
- Yuhan Ning
- State Key Laboratory of Chemical
Biology, Shanghai Institute of Organic Chemistry, University of Chinese
Academy of Sciences, Chinese Academy of
Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Yun Wang
- State Key Laboratory of Chemical
Biology, Shanghai Institute of Organic Chemistry, University of Chinese
Academy of Sciences, Chinese Academy of
Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Jinghan Gui
- State Key Laboratory of Chemical
Biology, Shanghai Institute of Organic Chemistry, University of Chinese
Academy of Sciences, Chinese Academy of
Sciences, 345 Lingling Road, Shanghai 200032, China
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6
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Sung DB, Lee JS. Natural-product-based fluorescent probes: recent advances and applications. RSC Med Chem 2023; 14:412-432. [PMID: 36970151 PMCID: PMC10034199 DOI: 10.1039/d2md00376g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Accepted: 12/19/2022] [Indexed: 12/24/2022] Open
Abstract
Fluorescent probes are attractive tools for biology, drug discovery, disease diagnosis, and environmental analysis. In bioimaging, these easy-to-operate and inexpensive probes can be used to detect biological substances, obtain detailed cell images, track in vivo biochemical reactions, and monitor disease biomarkers without damaging biological samples. Over the last few decades, natural products have attracted extensive research interest owing to their great potential as recognition units for state-of-the-art fluorescent probes. This review describes representative natural-product-based fluorescent probes and recent discoveries, with a particular focus on fluorescent bioimaging and biochemical studies.
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Affiliation(s)
- Dan-Bi Sung
- Marine Natural Products Chemistry Laboratory, Korea Institute of Ocean Science and Technology Busan Republic of Korea
| | - Jong Seok Lee
- Marine Natural Products Chemistry Laboratory, Korea Institute of Ocean Science and Technology Busan Republic of Korea
- Department of Marine Biotechnology, Korea University of Science and Technology Daejeon Republic of Korea
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7
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Yoneyama T, Takahashi H, Grudniewska A, Ban S, Umeyama A, Noji M. Ergostane-Type Sterols From Several Cordyceps Strains. Nat Prod Commun 2022. [DOI: 10.1177/1934578x221105363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Ergosterol is an essential component for fungi, including entomopathogenic fungi like Cordyceps. Cordyceps has been used as a traditional medicine in Japan and China and possesses various unique ergostane-type sterols, those exhibit bioactivities. In this manuscript, we reported the isolation of 2 new ergostane-type sterols, 1 and 2 along with ten sterols (3-12) from 7 strains of Cordyceps related fungal strains, Cordyceps takaomontana NBRC 101754, Metarhizium owariense NBRC 33258, Polycephalomyces formosus NBRC 109994, Cordyceps tuberculata NBRC 106948, Cordyceps tenuipes NBRC 108997, Cordyceps sp. NBRC 106954, and Tolypocladium paradoxum NBRC 106958 collected fruiting bodies of Ophiocordyceps heteropoda. In addition, the antitrypanosomal activity and antimicrobial activity of isolates were tested to find 6 showed the antitrypanosomal activity, and the minimum inhibitory concentration (MIC) value was confirmed as 1.41 µg/mL. In the antimicrobial assay, the MIC value of 8 against methicillin-resistant Staphylococcus aureus was determined to be 3.1 µg/mL.
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Affiliation(s)
| | | | | | - Sayaka Ban
- Medical Mycology Research Center, Chiba University, Chiba, Japan
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8
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Abstract
The triterpenoid natural products have played an important role in understanding mechanistic models of human diseases. These natural products are diverse, but many have been characterized as reactive oxygen species (ROS) modulators. ROS can regulate cell survival and function, which ultimately affects biological processes leading to disease. The triterpenoids offer an untapped source of creativity to generate tool compounds with high selectivity to regulate ROS. This brief Review highlights the diverse complexity by which these secondary metabolites induce many cell death modalities (apoptosis, autophagy, ferroptosis, etc.) that can affect various complex cell signaling pathways through ROS and ultimately lead to evading or accelerating cell death.
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Affiliation(s)
- Taotao Ling
- Department of Chemistry, Lousiana State University, 133 Chopping Hall, Baton
Rouge, Louisiana 70803, United States
| | - Lucinda Boyd
- Department of Chemistry, Lousiana State University, 133 Chopping Hall, Baton
Rouge, Louisiana 70803, United States
| | - Fatima Rivas
- Department of Chemistry, Lousiana State University, 133 Chopping Hall, Baton
Rouge, Louisiana 70803, United States
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9
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Zhabinskii VN, Drasar P, Khripach VA. Structure and Biological Activity of Ergostane-Type Steroids from Fungi. Molecules 2022; 27:2103. [PMID: 35408501 PMCID: PMC9000798 DOI: 10.3390/molecules27072103] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 03/22/2022] [Accepted: 03/23/2022] [Indexed: 12/24/2022] Open
Abstract
Mushrooms are known not only for their taste but also for beneficial effects on health attributed to plethora of constituents. All mushrooms belong to the kingdom of fungi, which also includes yeasts and molds. Each year, hundreds of new metabolites of the main fungal sterol, ergosterol, are isolated from fungal sources. As a rule, further testing is carried out for their biological effects, and many of the isolated compounds exhibit one or another activity. This study aims to review recent literature (mainly over the past 10 years, selected older works are discussed for consistency purposes) on the structures and bioactivities of fungal metabolites of ergosterol. The review is not exhaustive in its coverage of structures found in fungi. Rather, it focuses solely on discussing compounds that have shown some biological activity with potential pharmacological utility.
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Affiliation(s)
- Vladimir N. Zhabinskii
- Institute of Bioorganic Chemistry, National Academy of Sciences of Belarus, Kuprevich Str., 5/2, 220141 Minsk, Belarus;
| | - Pavel Drasar
- Department of Chemistry of Natural Compounds, University of Chemistry and Technology, Technicka 5, CZ-166 28 Prague, Czech Republic;
| | - Vladimir A. Khripach
- Institute of Bioorganic Chemistry, National Academy of Sciences of Belarus, Kuprevich Str., 5/2, 220141 Minsk, Belarus;
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10
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Li YC, Ngan NT, Cheng KC, Hwang TL, Thang TD, Tuan NN, Yang ML, Kuo PC, Wu TS. Constituents from the Fruiting Bodies of Trametes cubensis and Trametes suaveolens in Vietnam and Their Anti-Inflammatory Bioactivity. Molecules 2021; 26:molecules26237311. [PMID: 34885893 PMCID: PMC8659016 DOI: 10.3390/molecules26237311] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 11/25/2021] [Accepted: 11/29/2021] [Indexed: 11/16/2022] Open
Abstract
It is reported that various fungi have been used for medicine and edible foods. The tropical Trametes genus is popular and well-known in Vietnam for its health effects and bioactivities. In this study, the fruiting bodies of the edible fungi T. cubensis and T. suaveolens were collected in Vietnam. The preliminary bioactivity screening data indicated that the methanol extracts of the fruiting bodies of T. cubensis and T. suaveolens displayed significant inhibition of superoxide anion generation and elastase release in human neutrophils. Therefore, the isolation and characterization were performed on these two species by a combination of chromatographic methods and spectrometric analysis. In total, twenty-four compounds were identified, and among these (1-3) were characterized by 1D-, 2D-NMR, and HRMS analytical data. In addition, the anti-inflammatory potentials of some purified compounds were examined by the cellular model for the inhibition of superoxide anion generation and elastase release in human neutrophils. Among the isolated compounds, (5,14), and (19) displayed significant anti-inflammatory potential. As the results suggest, the extracts and isolated compounds from T. cubensis and T. suaveolens are potential candidates for the further development of new anti-inflammatory lead drugs or natural healthy foods.
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Affiliation(s)
- Yue-Chiun Li
- School of Pharmacy, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan; (Y.-C.L.); (M.-L.Y.)
| | - Nguyen Thi Ngan
- Institute of Biotechnology and Food Technology, Industrial University of Ho Chi Minh City, Ho Chi Minh City 700000, Vietnam; (N.T.N.); (T.D.T.); (N.N.T.)
| | | | - Tsong-Long Hwang
- Graduate Institute of Natural Products, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan;
- Research Center for Chinese Herbal Medicine, Research Center for Food and Cosmetic Safety, Graduate Institute of Health Industry Technology, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan 33302, Taiwan
- Department of Anesthesiology, Chang Gung Memorial Hospital, Taoyuan 33302, Taiwan
| | - Tran Dinh Thang
- Institute of Biotechnology and Food Technology, Industrial University of Ho Chi Minh City, Ho Chi Minh City 700000, Vietnam; (N.T.N.); (T.D.T.); (N.N.T.)
| | - Nguyen Ngoc Tuan
- Institute of Biotechnology and Food Technology, Industrial University of Ho Chi Minh City, Ho Chi Minh City 700000, Vietnam; (N.T.N.); (T.D.T.); (N.N.T.)
| | - Mei-Lin Yang
- School of Pharmacy, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan; (Y.-C.L.); (M.-L.Y.)
| | - Ping-Chung Kuo
- School of Pharmacy, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan; (Y.-C.L.); (M.-L.Y.)
- Correspondence: (P.-C.K.); (T.-S.W.); Tel.: +886-6-2353535 (ext. 6806) (P.-C.K.); Tel.: +886-6-2757575 (ext. 65333) (T.-S.W.)
| | - Tian-Shung Wu
- School of Pharmacy, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan; (Y.-C.L.); (M.-L.Y.)
- Correspondence: (P.-C.K.); (T.-S.W.); Tel.: +886-6-2353535 (ext. 6806) (P.-C.K.); Tel.: +886-6-2757575 (ext. 65333) (T.-S.W.)
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11
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Ning Y, Tian H, Gui J. Biogenesis-Guided Synthesis and Structural Revision of Sarocladione Enabled by Ruthenium-Catalyzed Endoperoxide Fragmentation. Angew Chem Int Ed Engl 2021; 60:11222-11226. [PMID: 33682234 DOI: 10.1002/anie.202101451] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 02/21/2021] [Indexed: 11/11/2022]
Abstract
Sarocladione is the first 5,10:8,9-diseco-steroid with a 14-membered macrocyclic diketone framework to have been isolated from a natural source. Herein we report a biomimetic synthesis of sarocladione in only two or seven steps from inexpensive, commercially available ergosterol. The key feature of this synthesis was a novel ruthenium-catalyzed endoperoxide fragmentation, which transformed various saturated endoperoxides into olefinic diketones by cleavage of two C-C bonds. This synthesis allowed us to unambiguously determine the structure of sarocladione and provided experimental support for its revised biosynthetic origin. This work also vividly demonstrates that consideration of the biogenesis is a powerful tool for elucidating the structures of natural products.
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Affiliation(s)
- Yuhan Ning
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
| | - Hailong Tian
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
| | - Jinghan Gui
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
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12
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Ning Y, Tian H, Gui J. Biogenesis‐Guided Synthesis and Structural Revision of Sarocladione Enabled by Ruthenium‐Catalyzed Endoperoxide Fragmentation. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202101451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yuhan Ning
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Hailong Tian
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Jinghan Gui
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
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13
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Abstract
Asperversin A represents the first example of a steroid-sterigmatocystin heterodimer. We report the concise asymmetric total synthesis of this natural product in 11 steps (the longest linear sequence). The polycyclic ring system was constructed by a cascade dialdehyde cyclization and the late stage xanthene formation by a phenol-assisted reductive alkylation and a SNAr reaction. The acetal linkage with ergosterol peroxide was furnished by a glycosylation-inspired approach.
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Affiliation(s)
- Zhi Zhang
- School of Pharmaceutical Sciences, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Beijing Advanced Innovation Center for Structural Biology & Frontier Research Center for Biological Structure, Tsinghua University, Beijing 100084, China
| | - Liansuo Zu
- School of Pharmaceutical Sciences, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Beijing Advanced Innovation Center for Structural Biology & Frontier Research Center for Biological Structure, Tsinghua University, Beijing 100084, China
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14
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He L, He X, Liu X, Shi W, Xu X, Zhang Z. A sensitive, precise and rapid LC-MS/MS method for determination of ergosterol peroxide in Paecilomyces cicadae mycelium. Steroids 2020; 164:108751. [PMID: 33075399 DOI: 10.1016/j.steroids.2020.108751] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 09/28/2020] [Accepted: 10/11/2020] [Indexed: 11/29/2022]
Abstract
Ergosterol peroxide (EP) has considerable potential effect against the proliferation of tumor cells. Here, we established a new approach for EP content detection through liquid chromatography-tandem mass spectrometry. The specificity, limit of detection (LOD)/quantitative (LOQ), linearity and range, accuracy, repeatability, and intermediate precision were tested. The EP retention time was 7.18 min. The linear relationship between the mass concentration of nonylphenol and the chromatographic peak area was good within the EP concentration range of 0.1-2.0 μg/mL. The correlation coefficient was 0.994, the regression equation was Y = 27 409.8 × X - 1114.67, the average recovery rate was 82.77%, the relative standard deviation was 11.1%, the LOQ was 50 ng/mL, and the LOD was 20 ng/mL. The detection technique was convenient, accurate, reproducible, and rapid. Therefore, this method could be used for deep liquid fermentation, providing a basis for EP to serve as a quality standard for the fermentation of Paecilomyces cicadae.
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Affiliation(s)
- Linfu He
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Xiaoyan He
- Department of Pathology, People's Hospital of Deyang City, Deyang 618000, PR China
| | - Xiaocui Liu
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Wenjing Shi
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Xiaofeng Xu
- Shanghai Engineering Research Center of Proton and Heavy Ion Radiation Therapy, PR China.
| | - Zhicai Zhang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China; Key Laboratory of Edible Mushroom Processing Ministry of Agriculture and Rural Affairs, Jiangsu Alphay Bio-technology Co., Ltd., Nantong 226009, PR China.
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Yongxia Z, Jian X, Suyuan H, Aixin N, Lihong Z. Isolation and characterization of ergosterol from Monascus anka for anti-lipid peroxidation properties. J Mycol Med 2020; 30:101038. [PMID: 33069573 DOI: 10.1016/j.mycmed.2020.101038] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 08/13/2020] [Accepted: 08/14/2020] [Indexed: 01/02/2023]
Abstract
Unbalanced lipid peroxidation damages the human body, and is associated with the formation of tumors, infections, inflammations, autoimmune diseases, and cardiovascular and cerebrovascular diseases. However, food and drugs that contain anti-lipid peroxidation active substances, can help to protect against these negative health impacts. We observed lipid peroxidation inhibition in the metabolites of fermented Monascus anka, in media with Dendrobium nobile Lindl. The anti-lipid peroxidation ability of the extracts was strongest in ethyl acetate, so this was selected for further purifications. A crystal with strong antioxidant properties was obtained by column chromatography. Based on its spectroscopic analysis by Electron Bombardment Ion Source and Mass Spectrometry (EI-MS), 1H-Nuclear Magnetic Resonance (1H-NMR), and 13C-Nuclear Magnetic Resonance (13C-NMR), the isolated crystal was identified as ergosterol. The inhibition rates of the lipid peroxide due to the ergosterol were 57.42%, at 2μg/mL in vitro. Simultaneously, the survival rates of the damaged cells treated with 0.3mmol/L H2O2 were significantly improved with the ergosterol, up to 43.88% (200μg/mL) and 46.64% (400μg/mL), compared to 36.47% for the injured cells. The survival rate of the cells was 78.32% (400μg/mL), with ergosterol as a prevention. Cell injury can increase the level of intracellular ROS, but its levels in the damaged cells were reduced after the ergosterol treatments, and the reduction increased with the increasing concentrations. A 400μg/mL concentration resulted in the lowest fluorescence intensity; 33421.11 AU below the normal level. Ergosterol significantly reduced the ROS levels, to reduce the cell damage. Ergosterol from Monascus anka was thus found to have strong anti-lipid peroxidation and antioxidant capabilities, and the ability to protect and repair damaged cells. It may consequently serve as a potential natural antioxidant and will play an important role in human anti-lipid peroxide.
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Affiliation(s)
- Z Yongxia
- Department of Wine Engineering, Moutai Institute, Renhuai, Guizhou, China
| | - X Jian
- Department of Medical Genetics, Zunyi Medical University, Zunyi, Guizhou, China
| | - H Suyuan
- College of Life Sciences, Guizhou University, Guiyang, Guizhou, China
| | - N Aixin
- College of Life Sciences, Guizhou University, Guiyang, Guizhou, China
| | - Z Lihong
- College of Life Sciences, Guizhou University, Guiyang, Guizhou, China.
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Ling T, Hadi V, Bollinger J, Rivas F. Identification of rapid access to polycyclic systems via a base-catalyzed cascade cyclization reaction and their biological evaluation. Bioorg Chem 2020; 99:103846. [PMID: 32334195 PMCID: PMC7329093 DOI: 10.1016/j.bioorg.2020.103846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Revised: 04/08/2020] [Accepted: 04/09/2020] [Indexed: 11/23/2022]
Abstract
A base-mediated cascade reaction between malonate esters and acrolein was developed to access complex polycyclic systems. This novel tandem reaction enables the simultaneous generation of up to seven new bonds and at least three new stereogenic centers. Mechanistic studies indicate a series of nucleophilic 1,4 and 1,6 Michael addition reactions occur, followed by an aldol condensation reaction, culminating in the formation of three fused rings. The compounds were characterized by NMR studies and the stereochemistry was confirmed by X-ray analysis. The ability to generate multigram quantities of such complex molecular scaffolds renders the method promising for medicinal chemistry campaigns. Herein, we also demonstrate that the lead compounds display promising anti-proliferative activities against human cancer cell models.
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Affiliation(s)
- Taotao Ling
- Department of Chemical Biology and Therapeutics, St. Jude Children's Research Hospital, Memphis, TN 38105-3678, USA
| | - Victor Hadi
- Department of Chemical Biology and Therapeutics, St. Jude Children's Research Hospital, Memphis, TN 38105-3678, USA
| | - John Bollinger
- Department of Structural Biology, St. Jude Children's Research Hospital, Memphis, TN 38105-3678, USA
| | - Fatima Rivas
- Department of Chemical Biology and Therapeutics, St. Jude Children's Research Hospital, Memphis, TN 38105-3678, USA.
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Synthesis of Ergosterol Peroxide Conjugates as Mitochondria Targeting Probes for Enhanced Anticancer Activity. Molecules 2019; 24:molecules24183307. [PMID: 31514398 PMCID: PMC6766909 DOI: 10.3390/molecules24183307] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Revised: 09/10/2019] [Accepted: 09/10/2019] [Indexed: 01/19/2023] Open
Abstract
Inspired by the significant bioactivity of ergosterol peroxide, we designed and synthesized four fluorescent coumarin and ergosterol peroxide conjugates 8a–d through the combination of ergosterol peroxide with 7-N,N-diethylamino coumarins fluorophore. The cytotoxicity of synthesized conjugates against three human cancer cells (HepG2, SK-Hep1, and MCF-7) was evaluated. The results of fluorescent imaging showed that the synthesized conjugates 8a–d localized and enriched mainly in mitochondria, leading to significantly enhanced cytotoxicity over ergosterol peroxide. Furthermore, the results of biological functions of 8d showed that it could suppress cell colony formation, invasion, and migration; induce G2/M phase arrest of HepG2 cells, and increase the intracellular ROS level.
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Ling T, Miller DJ, Lang WH, Griffith E, Rodriguez-Cortes A, El Ayachi I, Palacios G, Min J, Miranda-Carboni G, Lee RE, Rivas F. Mechanistic Insight on the Mode of Action of Colletoic Acid. J Med Chem 2019; 62:6925-6940. [PMID: 31294974 DOI: 10.1021/acs.jmedchem.9b00187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The natural product colletoic acid (CA) is a selective inhibitor of 11β-hydroxysteroid dehydrogenase type 1 (11β-HSD1), which primarily converts cortisone to the active glucocorticoid (GC) cortisol. Here, CA's mode of action and its potential as a chemical tool to study intracellular GC signaling in adipogenesis are disclosed. 11β-HSD1 biochemical studies of CA indicated that its functional groups at C-1, C-4, and C-9 were important for enzymatic activity; an X-ray crystal structure of 11β-HSD1 bound to CA at 2.6 Å resolution revealed the nature of those interactions, namely, a close-fitting and favorable interactions between the constrained CA spirocycle and the catalytic triad of 11β-HSD1. Structure-activity relationship studies culminated in the development of a superior CA analogue with improved target engagement. Furthermore, we demonstrate that CA selectively inhibits preadipocyte differentiation through 11β-HSD1 inhibition, suppressing other relevant key drivers of adipogenesis (i.e., PPARγ, PGC-1α), presumably by negatively modulating the glucocorticoid signaling pathway. The combined findings provide an in-depth evaluation of the mode of action of CA and its potential as a tool compound to study adipose tissue and its implications in metabolic syndrome.
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Affiliation(s)
| | | | | | | | | | - Ikbale El Ayachi
- Department of Medicine , The University of Tennessee Health Science Center , Memphis , Tennessee 38163 , United States
| | | | | | - Gustavo Miranda-Carboni
- Department of Medicine , The University of Tennessee Health Science Center , Memphis , Tennessee 38163 , United States
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