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Gu MM, Li Q, Zhang Y, Wu HW, Shao YL, Han HP, Liao ZX. Chemical constituents of Rubia tibetica Hook. f. from Tibetan medicine and cytotoxic activity evaluation. Fitoterapia 2024; 175:105961. [PMID: 38626855 DOI: 10.1016/j.fitote.2024.105961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 02/26/2024] [Accepted: 04/13/2024] [Indexed: 04/19/2024]
Abstract
Two unprecedented quinone compounds Rubiaxylm A (1) and Rubiaxylm B (2), along with fifteen known anthraquinones (3-17) were isolated and characterized from the roots of Rubia tibetica in Tibetan medicine. Their structures were identified through comprehensive analyses of 1D/2D NMR as well as HR-ESIMS data. Furthermore, all separated compounds were evaluated for their cytotoxic activity on A549, Caco-2, MDA-MB-231 and Skov-3 cell lines. In particular, compound 2 effectively inhibited MDA-MB-231 cells with an IC50 value of 8.15 ± 0.20 μM. Subsequently, the anti-tumor mechanism of 2 was investigated by flow cytometry, JC-1 staining, cell scratching and cell colony. These results indicated that compound 2 could inhibit the proliferation of MDA-MB-231 cells by arresting cells in the G1 phase.
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Affiliation(s)
- Min-Min Gu
- Department of Pharmaceutical Engineering, School of Chemistry and Chemical Engineering and Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, Southeast University, Nanjing 211189, PR China
| | - Qing Li
- Department of Pharmaceutical Engineering, School of Chemistry and Chemical Engineering and Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, Southeast University, Nanjing 211189, PR China
| | - Yu Zhang
- Department of Pharmaceutical Engineering, School of Chemistry and Chemical Engineering and Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, Southeast University, Nanjing 211189, PR China
| | - Hong-Wei Wu
- Department of Pharmaceutical Engineering, School of Chemistry and Chemical Engineering and Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, Southeast University, Nanjing 211189, PR China
| | - Yuan-Ling Shao
- Department of Pharmaceutical Engineering, School of Chemistry and Chemical Engineering and Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, Southeast University, Nanjing 211189, PR China
| | - Hong-Ping Han
- The Key Laboratory of Medicinal Plant and Animal Resources of Qinghai-Tibetan Plateau in Qinghai Province, School of Chemistry and Chemical Engineering, Qinghai Normal university, Xining 810008, China
| | - Zhi-Xin Liao
- Department of Pharmaceutical Engineering, School of Chemistry and Chemical Engineering and Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, Southeast University, Nanjing 211189, PR China.
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2
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Wang ZH, Fu XH, Li Q, You Y, Yang L, Zhao JQ, Zhang YP, Yuan WC. Recent Advances in the Domino Annulation Reaction of Quinone Imines. Molecules 2024; 29:2481. [PMID: 38893357 PMCID: PMC11173866 DOI: 10.3390/molecules29112481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Revised: 05/20/2024] [Accepted: 05/22/2024] [Indexed: 06/21/2024] Open
Abstract
Quinone imines are important derivatives of quinones with a wide range of applications in organic synthesis and the pharmaceutical industry. The attack of nucleophilic reagents on quinone imines tends to lead to aromatization of the quinone skeleton, resulting in both the high reactivity and the unique reactivity of quinone imines. The extreme value of quinone imines in the construction of nitrogen- or oxygen-containing heterocycles has attracted widespread attention, and remarkable advances have been reported recently. This review provides an overview of the application of quinone imines in the synthesis of cyclic compounds via the domino annulation reaction.
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Affiliation(s)
- Zhen-Hua Wang
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China; (X.-H.F.); (Y.Y.); (L.Y.); (J.-Q.Z.); (Y.-P.Z.)
| | - Xiao-Hui Fu
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China; (X.-H.F.); (Y.Y.); (L.Y.); (J.-Q.Z.); (Y.-P.Z.)
| | - Qun Li
- School of Materials and Environmental Engineering, Chengdu Technological University, Chengdu 611730, China;
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, China
| | - Yong You
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China; (X.-H.F.); (Y.Y.); (L.Y.); (J.-Q.Z.); (Y.-P.Z.)
| | - Lei Yang
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China; (X.-H.F.); (Y.Y.); (L.Y.); (J.-Q.Z.); (Y.-P.Z.)
| | - Jian-Qiang Zhao
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China; (X.-H.F.); (Y.Y.); (L.Y.); (J.-Q.Z.); (Y.-P.Z.)
| | - Yan-Ping Zhang
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China; (X.-H.F.); (Y.Y.); (L.Y.); (J.-Q.Z.); (Y.-P.Z.)
| | - Wei-Cheng Yuan
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China; (X.-H.F.); (Y.Y.); (L.Y.); (J.-Q.Z.); (Y.-P.Z.)
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3
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Gomes de Carvalho NK, Wellisson da Silva Mendes J, Martins da Costa JG. Quinones: Biosynthesis, Characterization of 13 C Spectroscopical Data and Pharmacological Activities. Chem Biodivers 2023; 20:e202301365. [PMID: 37926679 DOI: 10.1002/cbdv.202301365] [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: 09/05/2023] [Revised: 11/02/2023] [Accepted: 11/04/2023] [Indexed: 11/07/2023]
Abstract
Quinones are natural products widely distributed in nature, which are involved in stages of several vital biological processes, with mostly having a variety of pharmacological properties. The main groups comprising most of these compounds are benzoquinones, naphthoquinones, anthraquinones, and phenanthraquinones. Quinone isolation has been a focus of study around the world in recent years; for this reason, this study approaches the junction of natural quinones identified by 13 C Nuclear Magnetic Resonance (NMR) spectroscopic analytical techniques. The methodology used to obtain the data collected articles from various databases on quinones from 2000 to 2022. As a result, 137 compounds were selected, among which 70 were characterized for the first time in the period investigated; moreover, the study also discusses the biosynthetic pathways of quinones and the pharmacological activities of the compounds found, giving an overview of the various applications of these compounds.
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Affiliation(s)
- Natália Kelly Gomes de Carvalho
- Rede Nordeste de Biotecnologia - RENORBIO, Universidade Estadual do Ceará, Av. Dr. Silas Munguba, 1700 - Campus do Itaperi, 60714-903, Fortaleza, Ceará, Brasil
| | - Johnatan Wellisson da Silva Mendes
- Departamento de Química Biológica, Laboratório de Pesquisa de Produtos Naturais, Universidade Regional do Cariri, Rua Coronel Antônio Luíz, 1161 - Pimenta, 63105-010, Crato, Ceará, Brasil
| | - José Galberto Martins da Costa
- Rede Nordeste de Biotecnologia - RENORBIO, Universidade Estadual do Ceará, Av. Dr. Silas Munguba, 1700 - Campus do Itaperi, 60714-903, Fortaleza, Ceará, Brasil
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4
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Shcherbinin VA, Nasibullina ER, Mendogralo EY, Uchuskin MG. Natural epoxyquinoids: isolation, biological activity and synthesis. An update. Org Biomol Chem 2023; 21:8215-8243. [PMID: 37812083 DOI: 10.1039/d3ob01141k] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/10/2023]
Abstract
Epoxyquinoids are of continuing interest due to their wide natural distribution and diverse biological activities, including, but not limited to, antibacterial, antifungal, anticancer, enzyme inhibitory, and others. The last review on their total synthesis was published in 2017. Since then, almost 100 articles have been published on their isolation from nature and their biological profile. In addition, the review specifically considers synthesis, including total and enantioselective, as well as the development of shorter approaches for the construction of epoxyquinoids with complex chemical architecture. Thus, this review focuses on progress in this area in order to stimulate further research.
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Affiliation(s)
- Vitaly A Shcherbinin
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Pr. 47, 119334 Moscow, Russian Federation
| | - Ekaterina R Nasibullina
- Department of Chemistry, Perm State University, Bukireva St. 15, 614990 Perm, Russian Federation.
| | - Elena Y Mendogralo
- Department of Chemistry, Perm State University, Bukireva St. 15, 614990 Perm, Russian Federation.
| | - Maxim G Uchuskin
- Department of Chemistry, Perm State University, Bukireva St. 15, 614990 Perm, Russian Federation.
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Khan N, Sajid M, Obaidullah AJ, Rehman W, Faris Alotaibi H, Bibi S, Alanazi MM. Nematicidal Characterization of Newly Synthesized Thiazine Derivatives Using Caenorhabditis elegans as the Model Organism. ACS OMEGA 2023; 8:20767-20778. [PMID: 37332812 PMCID: PMC10269251 DOI: 10.1021/acsomega.3c01378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 05/25/2023] [Indexed: 06/20/2023]
Abstract
In humans, animals, and agriculture, parasitic nematode infection is a very serious issue. Many drugs are being used to control nematode infections. Owing to toxicity and nematodes' resistance to the available drugs, special attention is required to synthesize new drugs that are environmentally friendly with high-level efficacy. In the present study, various substituted thiazine derivatives (1 to 15) were synthesized, and the structures were confirmed by infrared, proton (1H), and 13C NMR spectroscopies. The nematicidal potential of the synthesized derivatives was characterized using Caenorhabditis elegans (C. elegans) as a model organism. Among all synthesized compounds, 13 (LD50 = 38.95 μg/mL) and 15 (LD50 = 38.21 μg/mL) were considered the most potent compounds. Most compounds showed excellent anti-egg-hatching activity. Fluorescence microscopy confirmed that compounds 4, 8, 9, 13, and 15 displayed a high apoptotic effect. The expressions of gst-4, hsp-4, hsp16.2, and gpdh-1 genes were high in affected (treated with thiazine derivatives) C. elegans in comparison with normal C. elegans. The present research revealed that modified compounds are highly effective as they showed the gene level changes in the selected nematode. Due to structural modification in thiazine analogues, the compounds showed various modes of action. The most effective thiazine derivatives could be excellent candidates for novel broad-scale nematicidal drugs.
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Affiliation(s)
- Naqeeb
Ullah Khan
- Department
of Biochemistry, Hazara University, Mansehra, Khyber Pakhtunkhwa 21300, Pakistan
| | - Muhammad Sajid
- Department
of Biochemistry, Hazara University, Mansehra, Khyber Pakhtunkhwa 21300, Pakistan
| | - Ahmad J. Obaidullah
- Department
of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
| | - Wajid Rehman
- Department
of Chemistry, Hazara University, Mansehra, Khyber Pakhtunkhwa 21300, Pakistan
| | - Hadil Faris Alotaibi
- Department
of Pharmaceutical Sciences, College of Pharmacy, Princess Nourah bint Abdulrahman University, Riyadh 11671, Saudi Arabia
| | - Saira Bibi
- Department
of Chemistry, Hazara University, Mansehra, Khyber Pakhtunkhwa 21300, Pakistan
| | - Mohammed M. Alanazi
- Department
of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
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Li GH, Zhang KQ. Natural nematicidal metabolites and advances in their biocontrol capacity on plant parasitic nematodes. Nat Prod Rep 2023; 40:646-675. [PMID: 36597965 DOI: 10.1039/d2np00074a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Covering: 2010 to 2021Natural nematicidal metabolites are important sources of nematode control. This review covers the isolation and structural determination of nematicidal metabolites from 2010 to 2021. We summarise chemical structures, bioactivity, metabolic regulation and biosynthesis of potential nematocides, and structure-activity relationship and application potentiality of natural metabolites in plant parasitic nematodes' biocontrol. In doing so, we aim to provide a comprehensive overview of the potential roles that natural metabolites can play in anti-nematode strategies.
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Affiliation(s)
- Guo-Hong Li
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Key Laboratory for Southwest Microbial Diversity of the Ministry of Education, Yunnan University, Kunming, 650091, China.
| | - Ke-Qin Zhang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Key Laboratory for Southwest Microbial Diversity of the Ministry of Education, Yunnan University, Kunming, 650091, China.
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7
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De Novo Transcriptome Analysis Reveals Putative Genes Involved in Anthraquinone Biosynthesis in Rubia yunnanensis. Genes (Basel) 2022; 13:genes13030521. [PMID: 35328075 PMCID: PMC8954821 DOI: 10.3390/genes13030521] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Revised: 02/18/2022] [Accepted: 02/18/2022] [Indexed: 02/01/2023] Open
Abstract
Rubia yunnanensis Diels (R. yunnanensis), a Chinese perennial plant, is well-known for its medicinal values such as rheumatism, contusion, and anemia. It is rich in bioactive anthraquinones, but the biosynthetic pathways of anthraquinones in R. yunnanensis remain unknown. To investigate genes involved in anthraquinone biosynthesis in R. yunnanensis, we generated a de novo transcriptome of R. yunnanensis using the Illumina HiSeq 2500 sequencing platform. A total of 636,198 transcripts were obtained, in which 140,078 transcripts were successfully annotated. A differential gene expression analysis identified 15 putative genes involved in anthraquinone biosynthesis. Additionally, the hairy roots of R. yunnanensis were treated with 200 µM Methyl Jasmonate (MeJA). The contents of six bioactive anthraquinones and gene expression levels of 15 putative genes were measured using ultra performance liquid chromatography coupled with mass spectrometry (UPLC-MS/MS) and real-time quantitative polymerase chain reaction (RT-qPCR), respectively. The results showed that the expressions levels for 11 of the 15 genes and the contents of two of six anthraquinones significantly increased by MeJA treatment. Pearson’s correlation analyses indicated that the expressions of 4 of the 15 putative genes were positively correlated with the contents of rubiquinone (Q3) and rubiquinone-3-O-β-d-xylopranosyl-(1→6)-β-d-glucopyranoside (Q20). This study reported the first de novo transcriptome of R. yunnanensis and shed light on the anthraquinone biosynthesis and genetic information for R. yunnanensis.
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Hu YY, Zhang XJ, Zhang ZH, Wang Z, Tan NH. Qualitative and quantitative analyses of quinones in multi-origin Rubia species by ultra-performance liquid chromatography-tandem mass spectrometry combined with chemometrics. J Pharm Biomed Anal 2020; 189:113471. [DOI: 10.1016/j.jpba.2020.113471] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Revised: 07/06/2020] [Accepted: 07/08/2020] [Indexed: 12/11/2022]
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Ahmadi ES, Tajbakhsh A, Iranshahy M, Asili J, Kretschmer N, Shakeri A, Sahebkar A. Naphthoquinone Derivatives Isolated from Plants: Recent Advances in Biological Activity. Mini Rev Med Chem 2020; 20:2019-2035. [PMID: 32811411 DOI: 10.2174/1389557520666200818212020] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Revised: 05/22/2020] [Accepted: 05/29/2020] [Indexed: 11/22/2022]
Abstract
Naturally occurring naphthoquinones (NQs) comprising highly reactive small molecules are the subject of increasing attention due to their promising biological activities such as antioxidant, antimicrobial, apoptosis-inducing activities, and especially anticancer activity. Lapachol, lapachone, and napabucasin belong to the NQs and are in phase II clinical trials for the treatment of many cancers. This review aims to provide a comprehensive and updated overview on the biological activities of several new NQs isolated from different species of plants reported from January 2013 to January 2020, their potential therapeutic applications and their clinical significance.
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Affiliation(s)
- Esmaeil Sheikh Ahmadi
- Department of Pharmacognosy, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amir Tajbakhsh
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Milad Iranshahy
- Department of Pharmacognosy, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Javad Asili
- Department of Pharmacognosy, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Nadine Kretschmer
- Department of Pharmacognosy, Institute of Pharmaceutical Sciences, University of Graz, Graz, Austria
| | - Abolfazl Shakeri
- Department of Pharmacognosy, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amirhossein Sahebkar
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
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Kacmaz A. Some new NH-, NH,S-, S,S- and NH,NH- substituted 1,4-naphtho(benzo)quinones. PHOSPHORUS SULFUR 2020. [DOI: 10.1080/10426507.2019.1633534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Aysecik Kacmaz
- Department of Chemistry, Faculty of Engineering, Istanbul University-Cerrahpasa, Istanbul, Turkey
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Natural Naphthohydroquinone Dimer Rubioncolin C Exerts Anti-Tumor Activity by Inducing Apoptotic and Autophagic Cell Death and Inhibiting the NF-κB and Akt/mTOR/P70S6K Pathway in Human Cancer Cells. Cells 2019; 8:cells8121593. [PMID: 31817918 PMCID: PMC6953124 DOI: 10.3390/cells8121593] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 12/04/2019] [Accepted: 12/04/2019] [Indexed: 01/24/2023] Open
Abstract
Naphthohydroquinone dimers isolated from Rubia plants have garnered more attention due to their distinctive chemical structures and intriguing bioactivities. In our previous studies, we obtained ten naphthohydroquinone dimers containing seven novel ones and found that most of them possessed anti-tumor activities, especially rubioncolin C. However, the underlying mechanism remains unknown. In this study, we focused on rubioncolin C and found that it could inhibit the growth of cancer cell lines with IC50 values between 1.14 and 9.93 μM. Further experiments demonstrated that rubioncolin C induced apoptotic and autophagic cell death and inhibited the Akt/mTOR/P70S6K signaling pathway in HCT116 and HepG2 cells. Moreover, we observed that rubioncolin C inhibited the TNF-α- and LPS-induced NF-κB activation upstream of the p65 protein, which contributed to rubioncolin C-induced cell death. Rubioncolin C could also prevent LPS-induced endotoxin shock in vivo. Moreover, rubioncolin C suppressed tumor growth through inducing apoptosis and autophagy and inactivating NF-κB in vivo. These findings clarify the anti-tumor mechanism of rubioncolin C using biochemical techniques and pharmacological models and might contribute to the future development of rubioncolin C as a new therapeutic agent for treating cancer.
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Feng L, Wang J, Liu S, Zhang XJ, Bi QR, Hu YY, Wang Z, Tan NH. Colletopeptides A-D, Anti-inflammatory Cyclic Tridepsipeptides from the Plant Endophytic Fungus Colletotrichum sp. S8. JOURNAL OF NATURAL PRODUCTS 2019; 82:1434-1441. [PMID: 31181925 DOI: 10.1021/acs.jnatprod.8b00829] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Four new hybrid peptide-polyketide cyclic tridepsipeptides, colletopeptides A-D (1-4), were isolated and characterized from the endophytic fungus Colletotrichum sp. S8 derived from the stems of Rubia podantha with the guidance of LC-UV-MS detection. Their structures were elucidated by extensive spectroscopic analysis and X-ray crystallography. Compounds 1-4 are rare natural 12-membered cyclic tridepsipeptides containing a 3,5,11-trihydroxy-2-methyl dodecanoic acid unit in their structures. 1-4 inhibited lipopolysaccharide-induced nitric oxide production in RAW264.7 macrophages with the IC50 values of 8.3, 38.7, 13.5, and 22.2 μM, respectively. 1 also inhibited the production of inflammatory factors IL-6 and TNF-α, and decreased the phosphorylation of NF-κB-associated proteins IκBα and p65.
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Affiliation(s)
- Li Feng
- Department of TCMs Pharmaceuticals, School of Traditional Chinese Pharmacy , China Pharmaceutical University , Nanjing 211198 , People's Republic of China
| | - Jia Wang
- Department of TCMs Pharmaceuticals, School of Traditional Chinese Pharmacy , China Pharmaceutical University , Nanjing 211198 , People's Republic of China
| | - Shuai Liu
- Faculty of Life Science and Food Engineering , Huaiyin Institute of Technology , Huaian 223001 , People's Republic of China
| | - Xue-Jia Zhang
- Department of TCMs Pharmaceuticals, School of Traditional Chinese Pharmacy , China Pharmaceutical University , Nanjing 211198 , People's Republic of China
| | - Qi-Rui Bi
- Department of TCMs Pharmaceuticals, School of Traditional Chinese Pharmacy , China Pharmaceutical University , Nanjing 211198 , People's Republic of China
| | - Yan-Yun Hu
- Department of TCMs Pharmaceuticals, School of Traditional Chinese Pharmacy , China Pharmaceutical University , Nanjing 211198 , People's Republic of China
| | - Zhe Wang
- Department of TCMs Pharmaceuticals, School of Traditional Chinese Pharmacy , China Pharmaceutical University , Nanjing 211198 , People's Republic of China
| | - Ning-Hua Tan
- Department of TCMs Pharmaceuticals, School of Traditional Chinese Pharmacy , China Pharmaceutical University , Nanjing 211198 , People's Republic of China
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Systematic characterization and quantification of Rubiaceae-type cyclopeptides in 20 Rubia species by ultra performance liquid chromatography tandem mass spectrometry combined with chemometrics. J Chromatogr A 2018; 1581-1582:43-54. [DOI: 10.1016/j.chroma.2018.10.049] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 09/30/2018] [Accepted: 10/27/2018] [Indexed: 12/15/2022]
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