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Ernst L, Lyu H, Liu P, Paetz C, Sayed HMB, Meents T, Ma H, Beerhues L, El-Awaad I, Liu B. Regiodivergent biosynthesis of bridged bicyclononanes. Nat Commun 2024; 15:4525. [PMID: 38806518 PMCID: PMC11133429 DOI: 10.1038/s41467-024-48879-w] [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: 09/26/2023] [Accepted: 05/15/2024] [Indexed: 05/30/2024] Open
Abstract
Medicinal compounds from plants include bicyclo[3.3.1]nonane derivatives, the majority of which are polycyclic polyprenylated acylphloroglucinols (PPAPs). Prototype molecules are hyperforin, the antidepressant constituent of St. John's wort, and garcinol, a potential anticancer compound. Their complex structures have inspired innovative chemical syntheses, however, their biosynthesis in plants is still enigmatic. PPAPs are divided into two subclasses, named type A and B. Here we identify both types in Hypericum sampsonii plants and isolate two enzymes that regiodivergently convert a common precursor to pivotal type A and B products. Molecular modelling and substrate docking studies reveal inverted substrate binding modes in the two active site cavities. We identify amino acids that stabilize these alternative binding scenarios and use reciprocal mutagenesis to interconvert the enzymatic activities. Our studies elucidate the unique biochemistry that yields type A and B bicyclo[3.3.1]nonane cores in plants, thereby providing key building blocks for biotechnological efforts to sustainably produce these complex compounds for preclinical development.
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Affiliation(s)
- Lukas Ernst
- Technische Universität Braunschweig, Institute of Pharmaceutical Biology, Braunschweig, Germany.
| | - Hui Lyu
- Max Planck Institute for Chemical Ecology, NMR/Biosynthesis Group, Jena, Germany
| | - Pi Liu
- Chinese Academy of Sciences, Tianjin Institute of Industrial Biotechnology, Biodesign Center, Key Laboratory of Engineering Biology for Low-carbon Manufacturing, Tianjin, China
| | - Christian Paetz
- Max Planck Institute for Chemical Ecology, NMR/Biosynthesis Group, Jena, Germany
| | - Hesham M B Sayed
- Technische Universität Braunschweig, Institute of Pharmaceutical Biology, Braunschweig, Germany
- Assiut University, Faculty of Pharmacy, Department of Pharmacognosy, Assiut, Egypt
| | - Tomke Meents
- Technische Universität Braunschweig, Institute of Pharmaceutical Biology, Braunschweig, Germany
| | - Hongwu Ma
- Chinese Academy of Sciences, Tianjin Institute of Industrial Biotechnology, Biodesign Center, Key Laboratory of Engineering Biology for Low-carbon Manufacturing, Tianjin, China
| | - Ludger Beerhues
- Technische Universität Braunschweig, Institute of Pharmaceutical Biology, Braunschweig, Germany
- Technische Universität Braunschweig, Center of Pharmaceutical Engineering, Braunschweig, Germany
| | - Islam El-Awaad
- Technische Universität Braunschweig, Institute of Pharmaceutical Biology, Braunschweig, Germany.
- Assiut University, Faculty of Pharmacy, Department of Pharmacognosy, Assiut, Egypt.
- Technische Universität Braunschweig, Center of Pharmaceutical Engineering, Braunschweig, Germany.
| | - Benye Liu
- Technische Universität Braunschweig, Institute of Pharmaceutical Biology, Braunschweig, Germany.
- Technische Universität Braunschweig, Center of Pharmaceutical Engineering, Braunschweig, Germany.
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2
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Sun Z, Li Y, Zhong R, Li R. Hypericum sampsonii Hance: a review of its botany, traditional uses, phytochemistry, biological activity, and safety. Front Pharmacol 2023; 14:1247675. [PMID: 37795026 PMCID: PMC10546196 DOI: 10.3389/fphar.2023.1247675] [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: 06/26/2023] [Accepted: 08/31/2023] [Indexed: 10/06/2023] Open
Abstract
Ethnopharmacological relevance: Hypericum sampsonii Hance, also known as Yuanbao Cao in Chinese, is a traditional medicinal herb from the Guttiferae family and has been widely used in China to treat various conditions, including dysentery, enteritis, mastitis, scrofula, and contusion. Aim of the review: This review aims to provide a comprehensive overview of the botany, traditional uses, phytochemistry, biological activity and safety of H. sampsonii and to highlight its potential for medical application and drug development. Materials and methods: We searched several databases, i.e., Web of Science, SciFinder, PubMed, CBM, CNKI, Google Scholar, etc., for relevant information on H. sampsonii. Additionally, we also consulted some books on Chinese medicine. Results: To date, 227 secondary metabolites have been isolated from H. sampsonii, including polycyclic polyprenylated acylphloroglucinols (PPAPs), benzophenones, xanthones, flavonoids, naphthodianthrones, anthraquinones and aromatic compounds. These metabolites exhibit various biological activities such as anti-inflammatory, anti-tumor, anti-depressant, anti-oxidant, anti-viral and anti-bacterial effects. PPAPs are considered the main active metabolites with rich biological activities. Despite being known as rich source of PPAPs, the full extent of H. sampsonii biological activities, including their potential as PDE4 inhibitors, remained unclear. Since, previous studies have mainly been based on structural identification of metabolites in H. sampsonii, and efficacy evaluations of these metabolites based on clinical applications of H. sampsonii lack sufficient data. However, current evidence suggest that PPAPs are the most likely material basis for efficacy. From the limited information available so far, there is no evidence of potential safety issues and the safety data are limited. Conclusion: Collectively, this review provides a comprehensive overview of the botany, traditional uses, phytochemistry, pharmacology, and safety of H. sampsonii, a valuable medicinal plant in China with various pharmacological activities. Based on pharmacological studies, H. sampsonii shows potential for treating gastrointestinal and gynecological disorders as well as traumatic injuries, which aligns with traditional medicinal use due to the presence of PPAPs, benzophenones, xanthones, and flavonoids. Therefore, further studies are needed to evaluate the pharmacological effects and elucidate the pharmacological mechanisms. In addition, pharmacological mechanisms and safety evaluation of PPAPs on animal models need to be clarified. Yet, further comprehensive studies are required to elucidate the phytochemical constituents, pharmacological mechanisms, structure-activity relationships, safety evaluation, and quality standards of this plant. Takentogether, this review highlights the potential of H. sampsonii for medical application and drug development.
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Affiliation(s)
- Zhanghua Sun
- Guangdong Provincial Key Laboratory of Utilization and Conservation of Food and Medicinal Resources in Northern Region, Shaoguan University, Shaoguan, China
- College of Food Science and Technology, Shaoguan University, Shaoguan, China
| | - Yanzhen Li
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Ruimin Zhong
- Guangdong Provincial Key Laboratory of Utilization and Conservation of Food and Medicinal Resources in Northern Region, Shaoguan University, Shaoguan, China
- College of Food Science and Technology, Shaoguan University, Shaoguan, China
| | - Ran Li
- Guangdong Provincial Key Laboratory of Utilization and Conservation of Food and Medicinal Resources in Northern Region, Shaoguan University, Shaoguan, China
- College of Food Science and Technology, Shaoguan University, Shaoguan, China
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Li XN, Xu J, Yang S, Li QQ, Lu ZY, Mei G, Li JQ, Yang GZ, Lei XX, Chen Y. Garbractin A, a Polycyclic Polyprenylated Acylphloroglucinol with a 4,11-dioxatricyclo[4.4.2.0 1,5]Dodecane Skeleton from Garcinia bracteata Fruits. ACS OMEGA 2023; 8:30747-30756. [PMID: 37636964 PMCID: PMC10448683 DOI: 10.1021/acsomega.3c04947] [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: 07/10/2023] [Accepted: 08/02/2023] [Indexed: 08/29/2023]
Abstract
Garbractin A (1), a structurally complicated polycyclic polyprenylated acylphloroglucinol (PPAP) with an unprecedented 4,11-dioxatricyclo[4.4.2.01,5] dodecane skeleton, was isolated from the fruits of Garcinia bracteata, along with five new biosynthetic analogues named garcibracteatones A-E (2-6). Their structures containing absolute configurations were revealed using spectroscopic data, the residual dipolar coupling-enhanced NMR approach, and quantum chemical calculations. The antihyperglycemic effect of these PPAPs (1-6) was evaluated using insulin-resistant HepG2 cells (IR-HepG2 cells) induced through palmitic acid (PA). Compounds 1, 3, and 4 were found to significantly promote glucose consumption in the IR-HepG2 cells and, therefore, may hold potential as candidates for treating hyperglycemia.
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Affiliation(s)
- Xue-Ni Li
- School
of Pharmaceutical Sciences, South-Central
Minzu University, Wuhan 430074, P. R. China
| | - Jing Xu
- School
of Pharmaceutical Sciences, South-Central
Minzu University, Wuhan 430074, P. R. China
| | - Shuang Yang
- School
of Pharmaceutical Sciences, South-Central
Minzu University, Wuhan 430074, P. R. China
| | - Qing-Qing Li
- School
of Pharmaceutical Sciences, South-Central
Minzu University, Wuhan 430074, P. R. China
| | - Zheng-Yang Lu
- College
of Chemistry and Material Sciences, South-Central
Minzu University, Wuhan 430074, P. R. China
| | - Gui Mei
- School
of Pharmaceutical Sciences, South-Central
Minzu University, Wuhan 430074, P. R. China
| | - Jia-Qian Li
- School
of Pharmaceutical Sciences, South-Central
Minzu University, Wuhan 430074, P. R. China
| | - Guang-Zhong Yang
- School
of Pharmaceutical Sciences, South-Central
Minzu University, Wuhan 430074, P. R. China
- Ethnopharmacology
Level 3 Laboratory, National Administration
of Traditional Chinese Medicine, Wuhan 430074, P. R. China
| | - Xin-Xiang Lei
- State
Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Yu Chen
- College
of Chemistry and Material Sciences, South-Central
Minzu University, Wuhan 430074, P. R. China
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Cheng H, Yao Y, Chen H, Zhao P, Kang X, Zhou X, Liu W, Yang X. Discovery of bicyclic polyprenylated acylphloroglucinols from Hypericum himalaicum with glucose transporter 4 translocation activity. Bioorg Chem 2022; 129:106160. [PMID: 36179442 DOI: 10.1016/j.bioorg.2022.106160] [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: 08/05/2022] [Revised: 09/01/2022] [Accepted: 09/12/2022] [Indexed: 11/15/2022]
Abstract
Hyperhimatins A-P (1-16), sixteen new bicyclic polyprenylated acylphloroglucinols (BPAPs), were isolated and identified from Hypericum himalaicum. The planner structures of hyperhimatins A-P were confirmed via extensive NMR and careful HRESIMS data analysis. The absolute configurations of the new compounds were mainly determined by electronic circular dichroism (ECD) calculation, NMR calculation, and the circular dichroism data of the in situ formed [Rh2(OCOCF3)4] complexes. All compounds were assessed for the glucose transporter 4 (GLUT-4) translocation and expression enhancing effects in L6 myotubes. Compounds 1-16 could promote the GLUT-4 expression by the range of 1.95-6.04 folds, and accelerate the GLUT-4 fusion with the plasma membrane ranged from 53.56% to 76.97% at a consistence of 30 μg/mL, among compound 10 displayed the strongest GLUT-4 translocation effect.
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Affiliation(s)
- Haitao Cheng
- School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan 430074, China
| | - Yanhong Yao
- College of Life Sciences, South-Central Minzu University, Wuhan 430074, China
| | - Huijian Chen
- School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan 430074, China
| | - Ping Zhao
- College of Life Sciences, South-Central Minzu University, Wuhan 430074, China
| | - Xinyi Kang
- School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan 430074, China
| | - Xiuteng Zhou
- State Key Laboratory of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China.
| | - Wenqi Liu
- School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan 430074, China
| | - Xinzhou Yang
- School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan 430074, China.
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5
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Seco-polyprenylated acylphloroglucinols from Hypericum elodeoides induced cell cycle arrest and apoptosis in MCF-7 cells via oxidative DNA damage. Bioorg Chem 2022; 128:106088. [PMID: 36007479 DOI: 10.1016/j.bioorg.2022.106088] [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: 06/19/2022] [Revised: 08/02/2022] [Accepted: 08/06/2022] [Indexed: 11/20/2022]
Abstract
Four undescribed seco-polyprenylated acylphloroglucinols (seco-PAPs), elodeoidesones A-D (1-4), were characterized from Hypericum elodeoides. Compound 1 represents the 1,6-seco-PAPs with fascinating 5/5 fused ring, while 2-4 possess a 1,2-seco-PAPs skeleton with a five-membered lactone core. Their structures including absolute configurations were established by spectroscopic analyses and quantum chemical computations. A possible biosynthetic pathway of 1-4 from normal PAPs was proposed. All the isolates were investigated for their cytotoxicity against tumor cells. Notably, 1 inhibited the proliferation of MCF-7 cells with the IC50 value of 7.34 μM. Mechanism investigation indicated that 1 induced MCF-7 cells apoptosis by blocking cell cycle at S phase via inducing oxidative DNA damage.
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6
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Teng H, Li Q, Ma Z, Li X, Xie W, Chen Y, Yang G. Polyprenylated Acylphloroglucinols With Different Carbon Skeletons From the Fruits of Garcinia multiflora. Front Chem 2021; 9:756452. [PMID: 34765586 PMCID: PMC8576638 DOI: 10.3389/fchem.2021.756452] [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: 08/10/2021] [Accepted: 09/21/2021] [Indexed: 11/13/2022] Open
Abstract
Eleven new polycyclic polyprenylated acylphloroglucinols (PPAPs, 1-11) and three new monocyclic polyprenylated acylphloroglucinols (MPAPs, 12-14), together with ten known analogues were isolated from the fruits of Garcinia multiflora. These PPAPs belong to three types including the bicyclic polyprenylated acylphloroglucinols (BPAPs), the caged PPAPs, and the complicated PPAPs. Their structures and absolute configurations were determined through HRESIMS, NMR spectroscopy data, electronic circular dichroism (ECD) calculations, and gauge-independent atomic orbital (GIAO) NMR calculations with DP4+ analyses. Moreover, compounds 2 and 7 exhibited moderate cytotoxicity against three human cancer lines (MCF-7, T98, and HepG2) with IC50 values ranging from 9.81 ± 1.56 to 17.00 ± 2.75 μM.
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Affiliation(s)
- Haida Teng
- College of Chemistry and Material Sciences, South-Central University for Nationalities, Wuhan, China
| | - Qingqing Li
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan, China
| | - Ziyu Ma
- College of Chemistry and Material Sciences, South-Central University for Nationalities, Wuhan, China
| | - Xueni Li
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan, China
| | - Wenli Xie
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan, China
| | - Yu Chen
- College of Chemistry and Material Sciences, South-Central University for Nationalities, Wuhan, China
| | - Guangzhong Yang
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan, China
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7
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Discovery of Novel Polycyclic Polyprenylated Acylphloroglucinols from the Fruits of Garcinia xanthochymus as Antitumor Agents by Suppressing the STAT3 Signaling. Int J Mol Sci 2021; 22:ijms221910365. [PMID: 34638708 PMCID: PMC8508737 DOI: 10.3390/ijms221910365] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 09/20/2021] [Accepted: 09/22/2021] [Indexed: 12/18/2022] Open
Abstract
Pharmacologic studies have revealed that polycyclic polyprenylated acylphloroglucinols (PPAPs) collectively exhibit a broad range of biological activities, including antineoplastic potential. Here, six new PPAPs, named garcixanthochymones F–K (3, 5, 7, 8, 11, and 15), together with nine known analogues were isolated from the fruits of Garcinia xanthochymus. Their structures were elucidated based on the spectroscopic data, including UV, HRESIMS, and NMR, and quantum chemical calculations. All the isolated PPAPs were tested for anti-proliferative activity against four human tumor cell lines, including SGC7901, A549, HepG2, and MCF-7. Most of the PPAPs possessed high anti-proliferative activity with IC50 values in the range of 0.89 to 36.98 μM, and significant apoptosis was observed in MCF-7 cells exposed to compounds 2 and 5. Besides, docking results showed that compounds 2 and 5 could strongly combine with the Src homology 2 (SH2) domain of STAT3 via hydrogen bond and hydrophobic interaction, which is one of the key oncogenes and crucial therapeutic targets. Furthermore, compounds 2 and 5 efficiently downregulated the expression of p-STAT3Tyr705 and pivotal effector proteins involved in oncogenic signaling pathways of MCF-7 cells.
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Ferraz CG, Silva MDC, Pereira DA, Caldas BV, Mattos R, Oliveira VV, Andrade EM, Soares AC, da Silva F, Cruz FG, Ribeiro PR. Polyprenylated benzophenone derivatives from Clusia burle-marxii and their chemotaxonomic significance. BIOCHEM SYST ECOL 2021. [DOI: 10.1016/j.bse.2020.104218] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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9
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Zhang ZZ, Zeng YR, Li YN, Hu ZX, Huang LJ, Gu W, Hao XJ, Yuan CM. Two new seco-polycyclic polyprenylated acylphloroglucinol from Hypericum sampsonii. Org Biomol Chem 2021; 19:216-219. [DOI: 10.1039/d0ob02072a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two rare seco-polycyclic polyprenylated acylphloroglucinols (1 and 2) were isolated from Hypericum sampsonii. Compounds 1 and 2 showed moderate multidrug resistance (MDR) reversal activity to resistant cancer cells, HepG2/ADR and MCF-7/ADR.
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Affiliation(s)
- Zi-Zhen Zhang
- State Key Laboratory of Functions and Applications of Medicinal Plants
- Guizhou Medical University
- Guiyang 550014
- People's Republic of China
- School of Pharmaceutical Sciences
| | - Yan-Rong Zeng
- State Key Laboratory of Functions and Applications of Medicinal Plants
- Guizhou Medical University
- Guiyang 550014
- People's Republic of China
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences
| | - Ya-Nan Li
- State Key Laboratory of Functions and Applications of Medicinal Plants
- Guizhou Medical University
- Guiyang 550014
- People's Republic of China
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences
| | - Zhan-Xing Hu
- State Key Laboratory of Functions and Applications of Medicinal Plants
- Guizhou Medical University
- Guiyang 550014
- People's Republic of China
- School of Pharmaceutical Sciences
| | - Lie-Jun Huang
- State Key Laboratory of Functions and Applications of Medicinal Plants
- Guizhou Medical University
- Guiyang 550014
- People's Republic of China
- School of Pharmaceutical Sciences
| | - Wei Gu
- State Key Laboratory of Functions and Applications of Medicinal Plants
- Guizhou Medical University
- Guiyang 550014
- People's Republic of China
- School of Pharmaceutical Sciences
| | - Xiao-Jiang Hao
- State Key Laboratory of Functions and Applications of Medicinal Plants
- Guizhou Medical University
- Guiyang 550014
- People's Republic of China
- School of Pharmaceutical Sciences
| | - Chun-Mao Yuan
- State Key Laboratory of Functions and Applications of Medicinal Plants
- Guizhou Medical University
- Guiyang 550014
- People's Republic of China
- School of Pharmaceutical Sciences
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Bicyclic polyprenylated acylphloroglucinols and their derivatives: structural modification, structure-activity relationship, biological activity and mechanism of action. Eur J Med Chem 2020; 205:112646. [PMID: 32791400 DOI: 10.1016/j.ejmech.2020.112646] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 07/02/2020] [Accepted: 07/04/2020] [Indexed: 12/22/2022]
Abstract
Bicyclic polyprenylated acylphloroglucinols (BPAPs), the principal bioactive benzophenone products isolated from plants of genera Garcinia and Hypericum, have attracted noticeable attention from the synthetic and biological communities due to their fascinating chemical structures and promising biological activities. However, the potential drug interaction, undesired physiochemical properties and toxicity have limited their potential use and development. In the last decade, pharmaceutical research on the structural modifications, structure-activity relationships (SARs) and mechanisms of action of BPAPs has been greatly developed to overcome the challenges. A comprehensive review of these scientific literature is extremely needed to give an overview of the rapidly emerging area and facilitate research related to BPAPs. This review, containing over 226 references, covers the progress made in the chemical synthesis-based structure modifications, SARs and the mechanism of action of BPAPs in vivo and vitro. The most relevant articles will focus on the discovery of lead compounds via synthetic modifications and the important BPAPs for which the direct targets have been deciphered. From this review, several key points of the SARs and mode of actions of this novel class of compounds have been summarized. The perspective and future direction of the research on BPAPs are concluded. This review would be helpful to get a better grasp of medicinal research of BPAPs and become a compelling guide for chemists dedicated to the synthesis of these compounds.
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Qiu D, Zhou M, Chen J, Wang G, Lin T, Huang Y, Yu F, Ding R, Sun C, Tian W, Chen H. Hyperelodiones A-C, monoterpenoid polyprenylated acylphoroglucinols from Hypericum elodeoides, induce cancer cells apoptosis by targeting RXRα. PHYTOCHEMISTRY 2020; 170:112216. [PMID: 31841782 DOI: 10.1016/j.phytochem.2019.112216] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2019] [Revised: 11/18/2019] [Accepted: 11/20/2019] [Indexed: 06/10/2023]
Abstract
Hyperelodiones A-C, three undescribed monoterpenoid polyprenylated acylphloroglucinols possessing 6/6/6 fused tricyclic core, were isolated from Hypericum elodeoides Choisy. Their gross structures were elucidated by HRESIMS and NMR data. The absolute configurations of hyperelodiones A-C were assigned by their calculated and compared electronic circular dichroism (ECD) spectra combined with their common biosynthetic origin. A fluorescence quenching assay suggested that hyperelodiones A-C could bind to RXRα-LBD, whereas hyperelodione C showed the strongest interaction with a KD of 12.81 μΜ. In addition, hyperelodiones A-C dose-dependently inhibited RXRα transactivation and the growth of HeLa and MCF-7 cells. Among them, hyperelodione C showed the most potent inhibitory activities and dose-dependent PARP cleavage. Molecular docking results suggested that hyperelodione C showed a different interaction mode compared with hyperelodione A and hyperelodione B. Thus, hyperelodione C can be considered as a promising lead compound for cancer therapy, which can bind to RXRα-LBD and induce HeLa and MCF-7 cell apoptosis.
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Affiliation(s)
- Daren Qiu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen 361005, China
| | - Mi Zhou
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen 361005, China
| | - Junjie Chen
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen 361005, China
| | - Guanghui Wang
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen 361005, China
| | - Ting Lin
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen 361005, China
| | - Yujie Huang
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen 361005, China
| | - Furong Yu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen 361005, China
| | - Rong Ding
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen 361005, China
| | - Cuiling Sun
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen 361005, China
| | - Wenjing Tian
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen 361005, China.
| | - Haifeng Chen
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen 361005, China.
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12
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Xiao CY, Mu Q, Gibbons S. The Phytochemistry and Pharmacology of Hypericum. PROGRESS IN THE CHEMISTRY OF ORGANIC NATURAL PRODUCTS 112 2020; 112:85-182. [DOI: 10.1007/978-3-030-52966-6_2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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13
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Liu X, Tian W, Wang G, Xu Q, Zhou M, Gao S, Qiu D, Jiang X, Sun C, Ding R, Lin T, Chen H. Stigmastane-type steroids with unique conjugated Δ 7,9(11) diene and highly oxygenated side chains from the twigs of Vernonia amygdalina. PHYTOCHEMISTRY 2019; 158:67-76. [PMID: 30476898 DOI: 10.1016/j.phytochem.2018.10.036] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2018] [Revised: 10/09/2018] [Accepted: 10/29/2018] [Indexed: 06/09/2023]
Abstract
Veramyosides A-J, eleven undescribed stigmastane-type steroids, including one aglycone and ten glycosides, along with three known homologues were isolated from the twigs of Vernonia amygdalina Delile (compositae). All compounds featured a stigmastane-type steroid skeleton with a unique conjugated Δ7,9(11) diene segment and highly oxygenated side chains with a γ-lactone or an α, β-unsaturated five-membered lactone ring. The structures of veramyosides A-J and their absolute configurations were unambiguously elucidated by HR-ESI-MS, extensive NMR spectroscopy, in situ dimolybdenum CD methods, modified Mosher's method, quantum chemical calculation of their ECD curves, and CD comparison methods on basis of their biogenetic pathway. In addition, all isolates were investigated for their effects on RXRα transcription, and their effects on the NF-κB signaling pathway were also evaluated.
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Affiliation(s)
- Xiangzhong Liu
- Fujian Provincial Key Laboratory of Innovative Drug Target, School of Pharmaceutical Sciences, Xiamen University, Xiamen, 361005, PR China
| | - Wenjing Tian
- Fujian Provincial Key Laboratory of Innovative Drug Target, School of Pharmaceutical Sciences, Xiamen University, Xiamen, 361005, PR China
| | - Guanghui Wang
- Fujian Provincial Key Laboratory of Innovative Drug Target, School of Pharmaceutical Sciences, Xiamen University, Xiamen, 361005, PR China
| | - Qiannan Xu
- Fujian Provincial Key Laboratory of Innovative Drug Target, School of Pharmaceutical Sciences, Xiamen University, Xiamen, 361005, PR China
| | - Mi Zhou
- Fujian Provincial Key Laboratory of Innovative Drug Target, School of Pharmaceutical Sciences, Xiamen University, Xiamen, 361005, PR China
| | - Shuo Gao
- Fujian Provincial Key Laboratory of Innovative Drug Target, School of Pharmaceutical Sciences, Xiamen University, Xiamen, 361005, PR China
| | - Daren Qiu
- Fujian Provincial Key Laboratory of Innovative Drug Target, School of Pharmaceutical Sciences, Xiamen University, Xiamen, 361005, PR China
| | - Xin Jiang
- Fujian Provincial Key Laboratory of Innovative Drug Target, School of Pharmaceutical Sciences, Xiamen University, Xiamen, 361005, PR China
| | - Cuiling Sun
- Fujian Provincial Key Laboratory of Innovative Drug Target, School of Pharmaceutical Sciences, Xiamen University, Xiamen, 361005, PR China
| | - Rong Ding
- Fujian Provincial Key Laboratory of Innovative Drug Target, School of Pharmaceutical Sciences, Xiamen University, Xiamen, 361005, PR China
| | - Ting Lin
- Fujian Provincial Key Laboratory of Innovative Drug Target, School of Pharmaceutical Sciences, Xiamen University, Xiamen, 361005, PR China.
| | - Haifeng Chen
- Fujian Provincial Key Laboratory of Innovative Drug Target, School of Pharmaceutical Sciences, Xiamen University, Xiamen, 361005, PR China.
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14
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Zhang N, Shi Z, Guo Y, Xie S, Qiao Y, Li XN, Xue Y, Luo Z, Zhu H, Chen C, Hu L, Zhang Y. The absolute configurations of hyperilongenols A–C: rare 12,13-seco-spirocyclic polycyclic polyprenylated acylphloroglucinols with enolizable β,β′-tricarbonyl systems from Hypericum longistylum Oliv. Org Chem Front 2019. [DOI: 10.1039/c9qo00245f] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Three PPAPs were isolated from H. longistylum Oliv.
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15
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Bridi H, Meirelles GDC, von Poser GL. Structural diversity and biological activities of phloroglucinol derivatives from Hypericum species. PHYTOCHEMISTRY 2018; 155:203-232. [PMID: 30153613 DOI: 10.1016/j.phytochem.2018.08.002] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Revised: 07/25/2018] [Accepted: 08/12/2018] [Indexed: 06/08/2023]
Abstract
Plants of the genus Hypericum (Hypericaceae) are used in folk medicine all over the world, H. perforatum being the most well-known species. Standardized extracts of this plant are commercially-available to treat mild to moderate depression cases. The present review summarizes the literature published up to 2016 concerning the phloroglucinol derivatives isolated from Hypericum species, together with their structural features and biological activities. These phytochemical studies led to the isolation of 101 prenylated phloroglucinols, chromanes and chromenes, 35 dimeric acylphloroglucinols, 235 polycyclic polyprenylated acylphloroglucinols, 25 simple benzophenones and 33 phloroglucinol-terpene adducts. These compounds show a diverse range of biological activities, such as antimicrobial, cytotoxic, antinociceptive and antidepressant-like effects.
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Affiliation(s)
- Henrique Bridi
- Programa de Pós-Graduação em Ciências Farmacêuticas, Avenida Ipiranga 2752, Porto Alegre/RS, 90610-000, Brazil
| | | | - Gilsane Lino von Poser
- Programa de Pós-Graduação em Ciências Farmacêuticas, Avenida Ipiranga 2752, Porto Alegre/RS, 90610-000, Brazil.
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16
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Yang XW, Grossman RB, Xu G. Research Progress of Polycyclic Polyprenylated Acylphloroglucinols. Chem Rev 2018; 118:3508-3558. [PMID: 29461053 DOI: 10.1021/acs.chemrev.7b00551] [Citation(s) in RCA: 249] [Impact Index Per Article: 41.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Polycyclic polyprenylated acylphloroglucinols (PPAPs) are a class of hybrid natural products sharing the mevalonate/methylerythritol phosphate and polyketide biosynthetic pathways and showing considerable structure and bioactivity diversity. This review discusses the progress of research into the chemistry and biological activity of 421 natural PPAPs in the past 11 years as well as in-depth studies of biological activities and total synthesis of some PPAPs isolated before 2006. We created an online database of all PPAPs known to date at http://www.chem.uky.edu/research/grossman/PPAPs . Two subclasses of biosynthetically related metabolites, spirocyclic PPAPs with octahydrospiro[cyclohexan-1,5'-indene]-2,4,6-trione core and complicated PPAPs produced by intramolecular [4 + 2] cycloadditions of MPAPs, are brought into the PPAP family. Some PPAPs' relative or absolute configurations are reassigned or critically discussed, and the confusing trivial names in PPAPs investigations are clarified. Pharmacologic studies have revealed a new molecular mechanism whereby hyperforin and its derivatives regulate neurotransmitter levels by activating TRPC6 as well as the antitumor mechanism of garcinol and its analogues. The antineoplastic potential of some type B PPAPs such as oblongifolin C and guttiferone K has increased significantly. As a result of the recent appearances of innovative synthetic methods and strategies, the total syntheses of 22 natural PPAPs including hyperforin, garcinol, and plukenetione A have been accomplished.
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Affiliation(s)
- Xing-Wei Yang
- State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, Chinese Academy of Sciences, and Yunnan Key Laboratory of Natural Medicinal Chemistry , Kunming 650201 , People's Republic of China
| | - Robert B Grossman
- Department of Chemistry , University of Kentucky , Lexington , Kentucky 40506-0055 , United States
| | - Gang Xu
- State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, Chinese Academy of Sciences, and Yunnan Key Laboratory of Natural Medicinal Chemistry , Kunming 650201 , People's Republic of China
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17
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Tian WJ, Qiu YQ, Chen JJ, Yao XJ, Wang GH, Dai Y, Chen HF, Yao XS. Norsampsone E, an unprecedented decarbonyl polycyclic polyprenylated acylphloroglucinol with a homoadamantyl core from Hypericum sampsonii. RSC Adv 2017. [DOI: 10.1039/c7ra05947g] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Norsampsone E, an unprecedented polycyclic polyprenylated acylphloroglucinol from Hypericum sampsonii, featured a homoadamantyl skeleton with the loss of the C-4 carbonyl.
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Affiliation(s)
- Wen-Jing Tian
- Fujian Provincial Key Laboratory of Innovative Drug Target
- School of Pharmaceutical Sciences
- Xiamen University
- Xiamen 361005
- P. R. China
| | - Yu-Qin Qiu
- Institute of Traditional Chinese Medicine & Natural Products
- Jinan University
- Guangzhou 510632
- P. R. China
| | - Jun-Jie Chen
- Fujian Provincial Key Laboratory of Innovative Drug Target
- School of Pharmaceutical Sciences
- Xiamen University
- Xiamen 361005
- P. R. China
| | - Xiao-Jun Yao
- State Key Laboratory of Quality Research in Chinese Medicine
- Macau Institute for Applied Research in Medicine and Health
- Macau University of Science and Technology
- Taipa
- P. R. China
| | - Guang-Hui Wang
- Fujian Provincial Key Laboratory of Innovative Drug Target
- School of Pharmaceutical Sciences
- Xiamen University
- Xiamen 361005
- P. R. China
| | - Yi Dai
- Institute of Traditional Chinese Medicine & Natural Products
- Jinan University
- Guangzhou 510632
- P. R. China
| | - Hai-Feng Chen
- Fujian Provincial Key Laboratory of Innovative Drug Target
- School of Pharmaceutical Sciences
- Xiamen University
- Xiamen 361005
- P. R. China
| | - Xin-Sheng Yao
- Institute of Traditional Chinese Medicine & Natural Products
- Jinan University
- Guangzhou 510632
- P. R. China
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18
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Tian WJ, Qiu YQ, Chen HF, Jin XJ, Yao XJ, Dai Y, Yao XS. Chiral separation and absolute configurations of two pairs of racemic polyprenylated benzophenones from Hypericum sampsonii. Fitoterapia 2016; 116:39-44. [PMID: 27818319 DOI: 10.1016/j.fitote.2016.10.014] [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] [Received: 08/23/2016] [Revised: 10/21/2016] [Accepted: 10/21/2016] [Indexed: 10/20/2022]
Abstract
(±) Sampsonins A-B (1-2), two pairs of racemic polyprenylated benzophenones, were isolated from the aerial parts of Hypericum sampsonii and successfully separated by chiral HPLC column. Their structures were elucidated by spectroscopic analyses, X-ray diffraction analysis, and quantum chemical calculation of ECD method. Besides, the plausible biogenetic pathways of 1-2 were proposed, and all of them were evaluated for RXRα transcriptional-inhibitory activities and cytotoxicity against HeLa cells.
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Affiliation(s)
- Wen-Jing Tian
- School of Pharmaceutical Science, Xiamen University, China; College of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, China
| | - Yu-Qin Qiu
- Institute of Traditional Chinese Medicine & Natural Products, Jinan University, China
| | - Hai-Feng Chen
- School of Pharmaceutical Science, Xiamen University, China
| | - Xiao-Jie Jin
- College of Chemistry and Chemical Engineering, Lanzhou University, China
| | - Xiao-Jun Yao
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Taipa, Macau, China; College of Chemistry and Chemical Engineering, Lanzhou University, China
| | - Yi Dai
- Institute of Traditional Chinese Medicine & Natural Products, Jinan University, China.
| | - Xin-Sheng Yao
- Institute of Traditional Chinese Medicine & Natural Products, Jinan University, China; College of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, China.
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