1
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Jiang ZY, Niu Q, Wang HX, Xu HN, Xie HX, Chen L, Chen R, Zhang HL, Gao L, Zuo AX, He HP. Structurally diverse diterpenoids from the leaves of Croton mangelong and their anti-diabetic activity. PHYTOCHEMISTRY 2024; 226:114206. [PMID: 38972440 DOI: 10.1016/j.phytochem.2024.114206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Revised: 07/02/2024] [Accepted: 07/04/2024] [Indexed: 07/09/2024]
Abstract
Eighteen compounds including eleven previously undescribed diterpenes were isolated from the leaves of Croton mangelong. The structures were determined by HRESIMS, IR, NMR, X-ray diffraction and ECD spectroscopic analysis. All isolates were assayed for their anti-hyperglycemic activities in insulin resistance (IR) 3T3-L1 adipocytes, and compound 4 was tested for its anti-diabetic activity in vivo. Results suggested compound 4 could effectively reduce blood glucose level in diabetic SD rats in a dose of 30 mg/kg.
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Affiliation(s)
- Zhi-Yong Jiang
- School of Ethnic Medicine, Yunnan University of Chinese Medicine, Kunming, 650500, Yunnan, PR China; Key Laboratory of Modern Research on Ethnic Medicine in Colleges of Yunnan Province, Kunming, 650500, Yunnan, PR China; Key Laboratory of Dai & Yi Medicine in Yunnan Province, Kunming, 650500, Yunnan, PR China.
| | - Qi Niu
- School of Ethnic Medicine, Yunnan University of Chinese Medicine, Kunming, 650500, Yunnan, PR China; Key Laboratory of Modern Research on Ethnic Medicine in Colleges of Yunnan Province, Kunming, 650500, Yunnan, PR China
| | - Hao-Xin Wang
- School of Ethnic Medicine, Yunnan University of Chinese Medicine, Kunming, 650500, Yunnan, PR China; Key Laboratory of Modern Research on Ethnic Medicine in Colleges of Yunnan Province, Kunming, 650500, Yunnan, PR China
| | - Hao-Nan Xu
- School of Ethnic Medicine, Yunnan University of Chinese Medicine, Kunming, 650500, Yunnan, PR China; Key Laboratory of Modern Research on Ethnic Medicine in Colleges of Yunnan Province, Kunming, 650500, Yunnan, PR China
| | - Hong-Xi Xie
- School of Ethnic Medicine, Yunnan University of Chinese Medicine, Kunming, 650500, Yunnan, PR China; Key Laboratory of Modern Research on Ethnic Medicine in Colleges of Yunnan Province, Kunming, 650500, Yunnan, PR China
| | - Lin Chen
- School of Ethnic Medicine, Yunnan University of Chinese Medicine, Kunming, 650500, Yunnan, PR China; Key Laboratory of Modern Research on Ethnic Medicine in Colleges of Yunnan Province, Kunming, 650500, Yunnan, PR China
| | - Rong Chen
- School of Ethnic Medicine, Yunnan University of Chinese Medicine, Kunming, 650500, Yunnan, PR China
| | - Hong-Lei Zhang
- School of Ethnic Medicine, Yunnan University of Chinese Medicine, Kunming, 650500, Yunnan, PR China
| | - Lu Gao
- School of Ethnic Medicine, Yunan Minzu University, PR China
| | - Ai-Xue Zuo
- School of Ethnic Medicine, Yunnan University of Chinese Medicine, Kunming, 650500, Yunnan, PR China.
| | - Hong-Ping He
- School of Ethnic Medicine, Yunnan University of Chinese Medicine, Kunming, 650500, Yunnan, PR China.
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2
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Zhang R, Wang DD, Tang LY, Tsering T, Jia JM, Wang AH. Two undescribed constituents from Salvia castanea Diels and evaluation of their cytotoxic activity. Nat Prod Res 2024:1-8. [PMID: 38934460 DOI: 10.1080/14786419.2024.2372829] [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: 02/21/2024] [Accepted: 06/21/2024] [Indexed: 06/28/2024]
Abstract
One previously undescribed abietane diterpene alkaloid containing an oxazole ring (1), one unreported abietane diterpene (2), and nine known abietane diterpenes (3-11) were isolated from the roots and rhizomes of Salvia castanea Diels. Their structures and absolute configurations were elucidated by a combination of HRESIMS, 1D and 2D NMR, and ECD. All compounds were evaluated for their cytotoxic activity against several human cancer cell lines (HepG2, A549, H460, MCF7, PC3, and Hela). The results showed that 1 exhibited a moderate cytotoxic effect on HepG2 cells (IC50: 14.22 ± 1.05 μM) and was able to inhibit the cell growth of MCF7 and Hela cells by 35.08% and 47.26% respectively, at a concentration of 20 μM, while other compounds showed low cytotoxic activity.
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Affiliation(s)
- Rui Zhang
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, People's Republic of China
| | - Dong-Dong Wang
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, People's Republic of China
| | - Lian-Yu Tang
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, People's Republic of China
| | - Tashi Tsering
- Traditional Tibetan Medical Research & Study Institute of Regional Traditional Tibetan Medical Hospital, Lhasa, People's Republic of China
| | - Jing-Ming Jia
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, People's Republic of China
| | - An-Hua Wang
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, People's Republic of China
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3
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Wang G, Wu J, Li Z, Chen T, Liu Y, Wang B, Chen Y, She Z. Talaroacids A-D and Talaromarane A, Diterpenoids with Anti-Inflammatory Activities from Mangrove Endophytic Fungus Talaromyces sp. JNQQJ-4. Int J Mol Sci 2024; 25:6691. [PMID: 38928398 PMCID: PMC11204306 DOI: 10.3390/ijms25126691] [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: 05/24/2024] [Revised: 06/11/2024] [Accepted: 06/14/2024] [Indexed: 06/28/2024] Open
Abstract
Five new diterpenes including four diterpenes with 1,2,3,4,4a,5,6,8a-octalin skeleton talaroacids A-D (1-4) and an isopimarane diterpenoid talaromarane A (5) were isolated from the mangrove endophytic fungus Talaromyces sp. JNQQJ-4. Their structures and absolute configurations were determined by analysis of high-resolution electrospray ionization mass spectroscopy (HRESIMS), 1D/2D Nuclear Magnetic Resonance (NMR) spectra, single-crystal X-ray diffraction, quantum chemical calculation, and electronic circular dichroism (ECD). Talaromarane A (5) contains a rare 2-oxabicyclo [3.2.1] octan moiety in isopimarane diterpenoids. In bioassays, compounds 1, 2, 4, and 5 displayed significant anti-inflammatory activities with the IC50 value from 4.59 to 21.60 μM.
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Affiliation(s)
- Guisheng Wang
- School of Chemistry, Sun Yat-sen University, Guangzhou 510275, China; (G.W.); (J.W.); (T.C.); (Y.L.); (B.W.)
| | - Jianying Wu
- School of Chemistry, Sun Yat-sen University, Guangzhou 510275, China; (G.W.); (J.W.); (T.C.); (Y.L.); (B.W.)
| | - Zhaokun Li
- School of Pharmacy, Anhui Medical University, Hefei 230032, China;
| | - Tao Chen
- School of Chemistry, Sun Yat-sen University, Guangzhou 510275, China; (G.W.); (J.W.); (T.C.); (Y.L.); (B.W.)
| | - Yufeng Liu
- School of Chemistry, Sun Yat-sen University, Guangzhou 510275, China; (G.W.); (J.W.); (T.C.); (Y.L.); (B.W.)
| | - Bo Wang
- School of Chemistry, Sun Yat-sen University, Guangzhou 510275, China; (G.W.); (J.W.); (T.C.); (Y.L.); (B.W.)
| | - Yan Chen
- School of Pharmacy, Anhui Medical University, Hefei 230032, China;
| | - Zhigang She
- School of Chemistry, Sun Yat-sen University, Guangzhou 510275, China; (G.W.); (J.W.); (T.C.); (Y.L.); (B.W.)
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4
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Kulkarni P, Yeram PB, Vora A. Terpenes in the management of chronic kidney disease. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2024:10.1007/s00210-024-03098-4. [PMID: 38683370 DOI: 10.1007/s00210-024-03098-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Accepted: 04/11/2024] [Indexed: 05/01/2024]
Abstract
Chronic kidney disease (CKD) is a chronic and progressive systemic condition that characterizes irreversible alterations in the kidneys' function and structure over an extended period, spanning months to years. CKD is the one of the major causes of mortality worldwide. However, very limited treatment options are available in the market for management of the CKD. Diabetes and hypertension are the key risk factors for the progression of CKD. It is majorly characterised by glomerulosclerosis, tubular atrophy, and interstitial fibrosis. Plants are considered safe and effective in treating various chronic conditions. A diverse group of phytoconstituents, including polyphenols, flavonoids, alkaloids, tannins, saponins, and terpenes, have found significant benefits in managing chronic ailments. Terpenes constitute a diverse group of plant compounds with various therapeutic benefits. Evidence-based pharmacological studies underscore the crucial role played by terpenes in preventing and managing CKD. These substances demonstrate the capacity to hinder detrimental pathways, such as oxidative stress, inflammation and fibrosis, thereby demonstrating benefit in renal dysfunction. This review offers a comprehensive overview of the roles and positive attributes of commonly occurring terpenes in managing the causes and risk factors of CKD and the associated conditions.
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Affiliation(s)
- Piyusha Kulkarni
- Shobhaben Pratapbhai Patel School of Pharmacy & Technology Management, Shri Vile Parle Kelavani Mandal's Narsee Monjee Institute of Management Studies, Mumbai, 400056, India
| | - Pranali B Yeram
- Shobhaben Pratapbhai Patel School of Pharmacy & Technology Management, Shri Vile Parle Kelavani Mandal's Narsee Monjee Institute of Management Studies, Mumbai, 400056, India
| | - Amisha Vora
- Shobhaben Pratapbhai Patel School of Pharmacy & Technology Management, Shri Vile Parle Kelavani Mandal's Narsee Monjee Institute of Management Studies, Mumbai, 400056, India.
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5
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Nishidono Y, Tanaka K. Structural Revision of Tinotufolins from Tinospora crispa Leaves Guided by Empirical Rules and DFT Calculations. JOURNAL OF NATURAL PRODUCTS 2024; 87:774-782. [PMID: 38358957 DOI: 10.1021/acs.jnatprod.3c00902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/17/2024]
Abstract
Clerodane diterpenes are a class of secondary metabolites that can be classified into four types according to the configuration of the H3-19/H-10-H3-17/H3-20 fragment, i.e., trans-cis (TC), trans-trans (TT), cis-cis (CC), and cis-trans (CT). Tinotufolins A-C and E (1a-3a and 5a), isolated from the leaves of Tinospora crispa, were previously elucidated as CT-type clerodanes; however, our established 13C NMR-based empirical rules and density functional theory calculations suggested that these clerodanes belong to the CC type. Therefore, tinotufolins A-F (1-6) were reisolated from the leaves of T. crispa, along with an undescribed compound 7 and known compounds 8-11, and their structures were established by extensive spectroscopic analyses. The structures of tinotufolins A-C and E were revised to CC-type 1-3 and 5, and undescribed compound 7 was established as a CC-type clerodane. The present study demonstrates that empirical rules and calculations can efficiently identify and revise erroneous structures in clerodane diterpenes.
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Affiliation(s)
- Yuto Nishidono
- College of Pharmaceutical Sciences, Ritsumeikan University, 1-1-1 Noji-Higashi, Kusatsu, Shiga 525-8577, Japan
- Research Organization of Science and Technology, Ritsumeikan University, 1-1-1 Noji-Higashi, Kusatsu, Shiga 525-8577, Japan
| | - Ken Tanaka
- College of Pharmaceutical Sciences, Ritsumeikan University, 1-1-1 Noji-Higashi, Kusatsu, Shiga 525-8577, Japan
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6
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Yang X, Zheng S, Wang X, Wang J, Ali Shah SB, Wang Y, Gao R, Xu Z. Advances in pharmacology, biosynthesis, and metabolic engineering of Scutellaria-specialized metabolites. Crit Rev Biotechnol 2024; 44:302-318. [PMID: 36581326 DOI: 10.1080/07388551.2022.2149386] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 10/11/2022] [Accepted: 11/02/2022] [Indexed: 12/31/2022]
Abstract
Scutellaria Linn., which belongs to the family Lamiaceae, is a commonly used medicinal plant for heat clearing and detoxification. In particular, the roots of S. baicalensis and the entire herb of S. barbata have been widely used in traditional medicine for thousands of years. The main active components of Scutellaria, including: baicalein, wogonin, norwogonin, scutellarein, and their glycosides have potential or existing drug usage. However, the wild resources of Scutellaria plants have been overexploited, and degenerated germplasm resources cannot fulfill the requirements of chemical extraction and clinical usage. Metabolic engineering and green production via microorganisms provide alternative strategies for greater efficiency in the production of natural products. Here, we review the progress of: pharmacological investigations, multi-omics, biosynthetic pathways, and metabolic engineering of various Scutellaria species and their active compounds. In addition, based on multi-omics data, we systematically analyze the phylogenetic relationships of Scutellaria and predict candidate transcription factors related to the regulation of active flavonoids. Finally, we propose the prospects of directed evolution of core enzymes and genome-assisted breeding to alleviate the shortage of plant resources of Scutellaria. This review provides important insights into the sustainable utilization and development of Scutellaria resources.
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Affiliation(s)
- Xinyi Yang
- Ministry of Education, Key Laboratory of Saline-alkali Vegetation Ecology Restoration (Northeast Forestry University), Harbin, China
- College of Life Science, Northeast Forestry University, Harbin, China
| | - Sihao Zheng
- China National Traditional Chinese Medicine Co., Ltd, Beijing, China
| | - Xiaotong Wang
- Ministry of Education, Key Laboratory of Saline-alkali Vegetation Ecology Restoration (Northeast Forestry University), Harbin, China
- College of Life Science, Northeast Forestry University, Harbin, China
| | - Jing Wang
- Ministry of Education, Key Laboratory of Saline-alkali Vegetation Ecology Restoration (Northeast Forestry University), Harbin, China
- College of Life Science, Northeast Forestry University, Harbin, China
| | - Syed Basit Ali Shah
- Ministry of Education, Key Laboratory of Saline-alkali Vegetation Ecology Restoration (Northeast Forestry University), Harbin, China
- College of Life Science, Northeast Forestry University, Harbin, China
| | - Yu Wang
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Ranran Gao
- The Artemisinin Research Center, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Zhichao Xu
- Ministry of Education, Key Laboratory of Saline-alkali Vegetation Ecology Restoration (Northeast Forestry University), Harbin, China
- College of Life Science, Northeast Forestry University, Harbin, China
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7
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Linh KTP, Trung VT, Trang DT, Binh PT, Cuong NT, Thanh NV, Cuong NX, Nam NH, Thao NP. Chemical constituents from the leaves of Sindora siamensis var. maritima and their antimicrobial and α-glucosidase inhibitory activities. Carbohydr Res 2024; 537:109074. [PMID: 38452719 DOI: 10.1016/j.carres.2024.109074] [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: 01/10/2024] [Revised: 02/16/2024] [Accepted: 03/01/2024] [Indexed: 03/09/2024]
Abstract
Two new glycosides, sindosides A-B (1-2), along with 11 previously identified metabolites (3-13), were isolated from an ethanolic extract of the leaves of Sindora siamensis var. maritima. The structures of the purified phytochemicals were elucidated by interpreting their spectroscopic data (IR, NMR, and HRMS). The absolute configuration of compound 1 was established by experimental and calculated ECD spectra. The antimicrobial results revealed that compound 8 selectively inhibited C. albicans fungal with a MIC value of 64 μg/mL, whereas 11 presented a weak inhibition toward E. faecalis, S. aureus, and B. cereus bacterial strains with the same MIC value of 128 μg/mL. Interestingly, compounds 1, 2, 8, 9, and 11 showed α-glucosidase inhibitory activity with IC50 values ranging from 14.42 ± 0.21 to 30.62 ± 0.18 μM, which were more active than the positive control (acarbose, with an IC50 value of 46.78 ± 1.37 μM). Enzyme kinetic analysis revealed that compounds 1, 2, and 11 behaved as uncompetitive inhibitors with Ki values of 8.60 ± 1.04, 5.16 ± 0.73, and 7.17 ± 0.98 μM, respectively.
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Affiliation(s)
- Kieu Thi Phuong Linh
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), Cau Giay, Hanoi, Viet Nam
| | - Vu Thanh Trung
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), Cau Giay, Hanoi, Viet Nam
| | - Duong Thu Trang
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), Cau Giay, Hanoi, Viet Nam
| | - Pham Thanh Binh
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), Cau Giay, Hanoi, Viet Nam
| | - Nguyen The Cuong
- Institute of Ecology and Biological Resources, VAST, Cau Giay, Hanoi, Viet Nam
| | - Nguyen Van Thanh
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), Cau Giay, Hanoi, Viet Nam
| | - Nguyen Xuan Cuong
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), Cau Giay, Hanoi, Viet Nam
| | - Nguyen Hoai Nam
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), Cau Giay, Hanoi, Viet Nam
| | - Nguyen Phuong Thao
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), Cau Giay, Hanoi, Viet Nam.
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8
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Zhang G, Wodrich MD, Cramer N. Catalytic enantioselective reductive Eschenmoser-Claisen rearrangements. Science 2024; 383:395-401. [PMID: 38271525 DOI: 10.1126/science.adl3369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Accepted: 12/19/2023] [Indexed: 01/27/2024]
Abstract
An important challenge in enantioselective catalysis is developing strategies for the precise synthesis of neighboring congested all-carbon quaternary stereocenters. The well-defined transition states of [3,3]-sigmatropic rearrangements and their underlying stereospecificity render them powerful tools for the synthesis of such arrays. However, this type of pericyclic reaction remains notoriously difficult to catalyze, especially in an enantioselective fashion. Herein, we describe an enantioselective reductive Eschenmoser-Claisen rearrangement catalyzed by chiral 1,3,2-diazaphospholene-hydrides. This developed transformation enables full control of the two newly formed acyclic stereogenic centers, leading to amides with vicinal all-carbon quaternary-tertiary or quaternary-quaternary carbon atoms.
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Affiliation(s)
- Guoting Zhang
- Laboratory of Asymmetric Catalysis and Synthesis, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland
| | - Matthew D Wodrich
- Laboratory for Computational Molecular Design, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland
| | - Nicolai Cramer
- Laboratory of Asymmetric Catalysis and Synthesis, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland
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9
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Bozsó Z, Lapat V, Ott PG, Móricz ÁM. Disparate Effects of Two Clerodane Diterpenes of Giant Goldenrod ( Solidago gigantea Ait.) on Bacillus spizizenii. Int J Mol Sci 2024; 25:1531. [PMID: 38338810 PMCID: PMC10855248 DOI: 10.3390/ijms25031531] [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: 12/30/2023] [Revised: 01/21/2024] [Accepted: 01/22/2024] [Indexed: 02/12/2024] Open
Abstract
New substances with antimicrobial properties are needed to successfully treat emerging human, animal, or plant pathogens. Seven clerodane diterpenes, previously isolated from giant goldenrod (Solidago gigantea) root, were tested against Gram-positive Bacillus subtilis, Bacillus spizizenii and Rhodococcus fascians by measuring minimal bactericidal concentration (MBC), minimal inhibitory concentration (MIC) and half-maximal inhibitory concentration (IC50). Two of them, Sg3a (a dialdehyde) and Sg6 (solidagoic acid B), were proved to be the most effective and were selected for further study. Bacillus spizizenii was incubated with the two diterpenes for shorter (1 h) or longer (5 h) periods and then subjected to genome-wide transcriptional analyses. Only a limited number of common genes (28 genes) were differentially regulated after each treatment, and these were mainly related to the restoration of cell membrane integrity and to membrane-related transports. Changes in gene activity indicated that, among other things, K+ and Na+ homeostasis, pH and membrane electron transport processes may have been affected. Activated export systems can be involved in the removal of harmful molecules from the bacterial cells. Inhibition of bacterial chemotaxis and flagellar assembly, as well as activation of genes for the biosynthesis of secondary metabolites, were observed as a general response. Depending on the diterpenes and the duration of the treatments, down-regulation of the protein synthesis-related, oxidative phosphorylation, signal transduction and transcription factor genes was found. In other cases, up-regulation of the genes of oxidation-reduction processes, sporulation and cell wall modification could be detected. Comparison of the effect of diterpenes with the changes induced by different environmental and nutritional conditions revealed several overlapping processes with stress responses. For example, the Sg6 treatment seems to have caused a starvation-like condition. In summary, there were both common and diterpene-specific changes in the transcriptome, and these changes were also dependent on the length of treatments. The results also indicated that Sg6 exerted its effect more slowly than Sg3a, but ultimately its effect was greater.
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Affiliation(s)
| | | | | | - Ágnes M. Móricz
- Plant Protection Institute, HUN-REN Centre for Agricultural Research, Herman Ottó Str. 15, H-1022 Budapest, Hungary; (Z.B.); (P.G.O.)
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10
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Kabbashi AS, Sattar MA, Aamer M, Siddiqui NN, Kamran M, Fayaz A, Jahan H, Khan FA, Wang Y. Clerodane Furanoditerpenoids from Tinospora bakis (A.Rich.) Miers (Menispermaceae). Molecules 2023; 29:154. [PMID: 38202737 PMCID: PMC10780120 DOI: 10.3390/molecules29010154] [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: 11/27/2023] [Revised: 12/13/2023] [Accepted: 12/22/2023] [Indexed: 01/12/2024] Open
Abstract
Tinospora bakis (A.Rich.) Miers (Menispermaceae) has traditionally been used to alleviate headaches, rheumatism, mycetoma, and diabetes, among others. Despite its extensive use, the active components of the plant have never been investigated. In this work, a series of furanoditerpenoids (1-18) and five compounds from other classes (19-23) were isolated from T. bakis. Notably, two new compounds were discovered and named: tinobakisin (1) and tinobakiside (10). Their molecular structures were elucidated with NMR, MS, UV, IR, and ECD spectra. Additionally, known compounds (2-9 and 11-23) were corroboratively identified through spectral comparisons with previously reported data, while highlighting and addressing some inaccuracies in the prior literature. Remarkably, compounds 6, 7, 13, and 17 exhibited a superior anti-glycation effect, outperforming established agents like rutin and quercetin in a lab model of protein glycation with glucose. The overall findings suggest that furanoditerpenoids play a crucial role in the antidiabetic properties of T. bakis. This research marks the first comprehensive phytochemical investigation of T. bakis, opening the door for further investigation into furanoditerpenoids and their biological mechanisms.
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Affiliation(s)
- Ahmed Saeed Kabbashi
- H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan; (A.S.K.); (M.A.S.); (M.A.); (M.K.); (A.F.)
- Department of Microbiology, Faculty of Pure and Applied Sciences, International University of Africa, Khartoum 12223, Sudan
| | - Maazah Abdul Sattar
- H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan; (A.S.K.); (M.A.S.); (M.A.); (M.K.); (A.F.)
| | - Muhammad Aamer
- H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan; (A.S.K.); (M.A.S.); (M.A.); (M.K.); (A.F.)
| | - Nimra Naz Siddiqui
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan; (N.N.S.); (H.J.)
| | - Muhammad Kamran
- H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan; (A.S.K.); (M.A.S.); (M.A.); (M.K.); (A.F.)
| | - Aneela Fayaz
- H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan; (A.S.K.); (M.A.S.); (M.A.); (M.K.); (A.F.)
| | - Humera Jahan
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan; (N.N.S.); (H.J.)
| | - Farooq-Ahmad Khan
- H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan; (A.S.K.); (M.A.S.); (M.A.); (M.K.); (A.F.)
- Third World Center (TWC) for Chemical Sciences, International Center for Chemical & Biological Sciences, University of Karachi, Karachi 75270, Pakistan
| | - Yan Wang
- H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan; (A.S.K.); (M.A.S.); (M.A.); (M.K.); (A.F.)
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11
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Tamuli R, Nguyen T, Macdonald JR, Pierens GK, Fisher GM, Andrews KT, Adewoyin FB, Omisore NO, Odaibo AB, Feng Y. Isolation and In Vitro and In Vivo Activity of Secondary Metabolites from Clerodendrum polycephalum Baker against Plasmodium Malaria Parasites. JOURNAL OF NATURAL PRODUCTS 2023; 86:2661-2671. [PMID: 37972998 DOI: 10.1021/acs.jnatprod.3c00743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2023]
Abstract
Chemical investigation of the antimalarial medicinal plant Clerodendrum polycephalum led to the isolation of five new diterpenoids, including ajugarins VII-X (1-4) and teuvincenone K (5), along with four known compounds, namely, 12,16-epoxy-6,11,14,17-tetrahydroxy-17(15 → 16)-abeo-5,8,11,13,15-abietapentaen-7-one (6), methyl pheophorbide A (7), loliolide (8), and acacetin (9). The chemical structures of the new compounds were elucidated using NMR spectroscopy, mass spectrometry, circular dichroism, as well as density functional theory calculations. All compounds were evaluated for in vitro activity against Plasmodium falciparum 3D7 malaria parasites with methyl pheophorbide A (7) showing the strongest activity (IC50 4.49 μM). Subsequent in vivo testing in a Plasmodium berghei chemosuppression model showed that compound 7 significantly attenuated peripheral blood parasitemia, leading to 79% and 87% chemosuppression following oral doses at 10 and 20 mg/kg, respectively.
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Affiliation(s)
- Roktima Tamuli
- Griffith Institute for Drug Discovery, Griffith University, Nathan, Queensland 4111, Australia
| | - Thanh Nguyen
- Griffith Institute for Drug Discovery, Griffith University, Nathan, Queensland 4111, Australia
| | - Jacinta R Macdonald
- Griffith Institute for Drug Discovery, Griffith University, Nathan, Queensland 4111, Australia
| | - Gregory K Pierens
- Centre for Advanced Imaging, The University of Queensland, St. Lucia, Queensland 4072, Australia
| | - Gillian M Fisher
- Griffith Institute for Drug Discovery, Griffith University, Nathan, Queensland 4111, Australia
| | - Katherine T Andrews
- Griffith Institute for Drug Discovery, Griffith University, Nathan, Queensland 4111, Australia
| | - Francis B Adewoyin
- Faculty of Pharmacy, Obafemi Awolowo University, Ile-Ife, Osun State 220282, Nigeria
| | - Nusrat O Omisore
- Faculty of Pharmacy, Obafemi Awolowo University, Ile-Ife, Osun State 220282, Nigeria
| | - Alexander B Odaibo
- Department of Zoology, Faculty of Science, University of Ibadan, Ibadan, Oyo State 200005, Nigeria
| | - Yunjiang Feng
- Griffith Institute for Drug Discovery, Griffith University, Nathan, Queensland 4111, Australia
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12
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Zhu M, Gao Y, Li Y, Xie F, Zhou J, Xu L, Lv D, Zhang X, Xu Z, Dong T, Shen T, Zhang J, Lou H. Novel Diterpenoids Incorporating Rearranged Labdanes from the Chinese Liverwort Anastrophyllum joergensenii and Their Anti-inflammatory Activity. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:19551-19567. [PMID: 38032113 DOI: 10.1021/acs.jafc.3c06235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2023]
Abstract
Liverworts provide valuable ecological services to improve the sustainability of agriculture, encompassing soil health maintenance and natural pest management. Some liverworts have potential applications in medicine and as food additives. Twenty-two novel diterpenoids (anajoerins A-V), of which anajoerins B-G are rearranged labdanes featuring an unprecedented 6/5 fused ring system, were isolated from the Chinese liverwort Anastrophyllum joergensenii Schiffn. The absolute configurations of all compounds were identified based on high-resolution electrospray ionization mass spectroscopy data, NMR spectra, and ECD calculations. Plausible biogenetic pathways for unprecedented rearranged labdanes were proposed. Seven diterpenoids exhibited anti-inflammatory activity by reducing nitric oxide production in LPS-stimulated RAW264.7 murine macrophages in a dose-dependent manner with IC50s between 9.71 and 56.56 μM. All tested compounds showed no cytotoxicity at the tested concentrations. Western blot analyses of NF-κB p65 downregulation showed that anajoerin L could inhibit the NF-κB signaling pathway. Furthermore, anajoerin L also suppressed the secretion of the ConA-induced proinflammatory cytokines IFN-γ, TNF-α, and IL-6.
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Affiliation(s)
- Mingzhu Zhu
- Department of Natural Product Chemistry, Key Laboratory of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Yinghui Gao
- Department of Natural Product Chemistry, Key Laboratory of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Yi Li
- Department of Natural Product Chemistry, Key Laboratory of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Feng Xie
- Department of Natural Product Chemistry, Key Laboratory of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Jinchuan Zhou
- School of Pharmacy, Linyi University, Linyi 276000, China
| | - Lintao Xu
- Department of Natural Product Chemistry, Key Laboratory of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Dongxue Lv
- Department of Natural Product Chemistry, Key Laboratory of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Xinyu Zhang
- Department of Natural Product Chemistry, Key Laboratory of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Zejun Xu
- Department of Natural Product Chemistry, Key Laboratory of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Ting Dong
- Department of Natural Product Chemistry, Key Laboratory of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Tao Shen
- Department of Natural Product Chemistry, Key Laboratory of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Jiaozhen Zhang
- Department of Natural Product Chemistry, Key Laboratory of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Hongxiang Lou
- Department of Natural Product Chemistry, Key Laboratory of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
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13
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Zhang F, Ma C, Che Q, Zhu T, Zhang G, Li D. Extending the Structural Diversity of Labdane Diterpenoids from Marine-Derived Fungus Talaromyces sp. HDN151403 Using Heterologous Expression. Mar Drugs 2023; 21:628. [PMID: 38132949 PMCID: PMC10744899 DOI: 10.3390/md21120628] [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: 11/13/2023] [Revised: 11/28/2023] [Accepted: 12/02/2023] [Indexed: 12/23/2023] Open
Abstract
Heterologous biosynthesis has become an effective means to activate fungal silent biosynthetic gene clusters (BGCs) and efficiently utilize fungal genetic resources. Herein, thirteen labdane diterpene derivatives, including five undescribed ones named talarobicins A-E (3-7), were discovered via heterologous expression of a silent BGC (labd) in Aspergillus nidulans. Their structures with absolute configurations were elucidated using extensive MS and NMR spectroscopic methods, as well as electronic circular dichroism (ECD) calculations. These labdanes belong to four skeleton types, and talarobicin B (4) is the first 3,18-dinor-2,3:4,18-diseco-labdane diterpene with the cleavage of the C2-C3 bond in ring A and the decarboxylation at C-3 and C-18. Talarobicin B (4) represents the key intermediate in the biosynthesis of penioxalicin and compound 13. The combinatorial heterologous expression and feeding experiments revealed that the cytochrome P450 enzymes LabdC, LabdE, and LabdF were responsible for catalyzing various chemical reactions, such as oxidation, decarboxylation, and methylation. All of the compounds are noncytotoxic, and compounds 2 and 8 displayed inhibitory effects against methicillin-resistant coagulase-negative staphylococci (MRCNS) and Bacillus cereus.
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Affiliation(s)
- Falei Zhang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; (F.Z.); (C.M.); (Q.C.); (T.Z.); (G.Z.)
| | - Chuanteng Ma
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; (F.Z.); (C.M.); (Q.C.); (T.Z.); (G.Z.)
| | - Qian Che
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; (F.Z.); (C.M.); (Q.C.); (T.Z.); (G.Z.)
| | - Tianjiao Zhu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; (F.Z.); (C.M.); (Q.C.); (T.Z.); (G.Z.)
| | - Guojian Zhang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; (F.Z.); (C.M.); (Q.C.); (T.Z.); (G.Z.)
- Laboratory for Marine Drugs and Bioproducts, Laoshan Laboratory, Qingdao 266237, China
- Marine Biomedical Research Institute of Qingdao, Qingdao 266101, China
| | - Dehai Li
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; (F.Z.); (C.M.); (Q.C.); (T.Z.); (G.Z.)
- Laboratory for Marine Drugs and Bioproducts, Laoshan Laboratory, Qingdao 266237, China
- Sanya Oceanographic Institute, Ocean University of China, Sanya 572025, China
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14
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Matcheme M, Dabolé B, Moussa D, Nyemb JN, Emmanuel T, Laurent S, Henoumont C, Venditti A. Chemical constituents from Cordia myxa L. (Boraginaceae) and their antibacterial activity. Nat Prod Res 2023:1-9. [PMID: 38041628 DOI: 10.1080/14786419.2023.2288928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 11/22/2023] [Indexed: 12/03/2023]
Abstract
Chemical investigation of Cordia myxa L. (Boraginaceae) resulted in the isolation of the following ten known compounds: 1-naphthaleneacetic-5-carboxy-1,2,3,4,4a,7,8,8a-octahydro-1,2,4a-trimethyl-[1S-(1α,2β, 4a,8aα)]-acid (1), hexacosanoate-1-glyceryl (2), 3β-urs-12,20(30)-diene-27,28-dioic acid (3), 3β-D-glucopyranosylurs-12,20(30)-diene-27,28-dioic acid (4), stigmasterol (5), stigmasterol-3-O-β-D-glucopyranoside (6), oleanolic-acid (7), 3-O-acetyl-oleanolic acid (8), betulin (9) and spinasterol-3β-O-D-glucopyranoside (10). The isolated compounds were characterised by using spectroscopic methods, 1D and 2D NMR, mass spectroscopy (ESI-MS) and by comparison with the literature data. To the best of our knowledge, compounds 1, 3, 4, 8 and 10 were isolated for the first time from the Cordia genus. This result improves the chemotaxonomy knowledge of the Cordia genus. The antibacterial activities were performed by the Muller-Hinton agar diffusion method. The antibacterial activities were studied on Salmonella typhi, Staphylococcus aureus, Vibrio cholerae, Pseudomonas aeruginosa and Escherichia coli ATCC 25922. Compounds 8 and 9, at 20.0 mg/mL resulted to be effective antimicrobial against E. coli, V. cholerae and P. aeruginosa.
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Affiliation(s)
- Matthieu Matcheme
- Department of Chemistry, Faculty of Science, University of Maroua, Maroua, Cameroon
| | - Bernard Dabolé
- Department of Chemistry, Faculty of Science, University of Maroua, Maroua, Cameroon
- Department of Refining and Petrochemistry, National Advanced School of Mines and Petroleum Industries, University of Maroua, Kaélé, Cameroon
| | - Djaouda Moussa
- Department of Life and Earth Sciences, Higher Teachers' Training College, University of Maroua, Maroua, Cameroun
| | - Jean Noël Nyemb
- Department of Refining and Petrochemistry, National Advanced School of Mines and Petroleum Industries, University of Maroua, Kaélé, Cameroon
| | - Talla Emmanuel
- Department of Chemistry, Faculty of Science, University of Ngaoundéré, Ngaoundéré, Cameroon
| | - Sophie Laurent
- Department of General, Organic and Biomedical Chemistry, Faculty of Medicine and Pharmacy, University of Mons, NMR and Molecular Imaging Laboratory, Mons, Belgium
| | - Céline Henoumont
- Department of General, Organic and Biomedical Chemistry, Faculty of Medicine and Pharmacy, University of Mons, NMR and Molecular Imaging Laboratory, Mons, Belgium
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15
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Linphosan C, Uk-At S, Setsuwan P, Srisupattanakul P, Boonyarat C, Poopasit K, Limtragool OA. A New Clerodane from the Leaves of Croton krabas and Its Cholinesterase Inhibitory Activities. Chem Biodivers 2023; 20:e202301309. [PMID: 37926685 DOI: 10.1002/cbdv.202301309] [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: 08/28/2023] [Revised: 10/30/2023] [Accepted: 11/04/2023] [Indexed: 11/07/2023]
Abstract
Chromatographic separation of the leaves of Croton krabas resulted in the isolation of one new clerodane, crotoeurin D (1), along with two known compounds, 6S-crotoeurin C (2) and blumenol A (3). Their structures were determined based on extensive nuclear magnetic resonance spectroscopic data analysis and mass spectrometry. The absolute configuration of the new clerodane was assigned by nuclear overhauser effect spectroscopy correlations and electronic circular dichroism calculations. Compound 1 exhibited significant acetylcholinesterase and butyrylcholinesterase inhibitory activities. Moreover, the binding modes of 1 revealed that its structure formed strong hydrogen bonds and hydrophobic interactions with the active sites of both enzymes.
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Affiliation(s)
- Chaiwat Linphosan
- Multidisciplinary Research Unit of Pure and Applied Chemistry, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahasarakham University, Maha Sarakham
| | - Sunita Uk-At
- Multidisciplinary Research Unit of Pure and Applied Chemistry, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahasarakham University, Maha Sarakham
| | - Phiraphon Setsuwan
- Multidisciplinary Research Unit of Pure and Applied Chemistry, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahasarakham University, Maha Sarakham
| | - Pattanasak Srisupattanakul
- Multidisciplinary Research Unit of Pure and Applied Chemistry, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahasarakham University, Maha Sarakham
| | - Chantana Boonyarat
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen, Thailand
| | - Kitisak Poopasit
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen, Thailand
| | - Oue-Artorn Limtragool
- Multidisciplinary Research Unit of Pure and Applied Chemistry, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahasarakham University, Maha Sarakham
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16
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Malczak I, Gajda A. Interactions of naturally occurring compounds with antimicrobials. J Pharm Anal 2023; 13:1452-1470. [PMID: 38223447 PMCID: PMC10785267 DOI: 10.1016/j.jpha.2023.09.014] [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: 06/23/2023] [Revised: 09/12/2023] [Accepted: 09/19/2023] [Indexed: 01/16/2024] Open
Abstract
Antibiotics are among the most often used medications in human healthcare and agriculture. Overusing these substances can lead to complications such as increasing antibiotic resistance in bacteria or a toxic effect when administering large amounts. To solve these problems, new solutions in antibacterial therapy are needed. The use of natural products in medicine has been known for centuries. Some of them have antibacterial activity, hence the idea to combine their activity with commercial antibiotics to reduce the latter's use. This review presents collected information on natural compounds (terpenes, alkaloids, flavonoids, tannins, sulfoxides, and mycotoxins), of which various drug interactions have been observed. Many of the indicated compounds show synergistic or additive interactions with antibiotics, which suggests their potential for use in antibacterial therapy, reducing the toxicity of the antibiotics used and the risk of further development of bacterial resistance. Unfortunately, there are also compounds which interact antagonistically, potentially hindering the therapy of bacterial infection. Depending on its mechanism of action, each compound can behave differently in combination with different antibiotics and when acting against various bacterial strains.
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Affiliation(s)
- Izabela Malczak
- Department of Pharmacology and Toxicology, National Veterinary Research Institute, Partyzantów 57, 24-100, Poland
| | - Anna Gajda
- Department of Pharmacology and Toxicology, National Veterinary Research Institute, Partyzantów 57, 24-100, Poland
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17
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Zhang ZM, Zhang J, Cai Q. Enantioselective and collective total synthesis of pentacyclic 19- nor-clerodanes. Chem Sci 2023; 14:12598-12605. [PMID: 38020367 PMCID: PMC10646913 DOI: 10.1039/d3sc04335e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Accepted: 10/22/2023] [Indexed: 12/01/2023] Open
Abstract
We report herein the collective asymmetric total synthesis of seven pentacyclic 19-nor-clerodane diterpenoids, namely (+)-teucvin (+)-cracroson A, (+)-cracroson E, (+)-montanin A, (+)-teucvisin C, (+)-teucrin A, and (+)-2-hydroxyteuscorolide. An ytterbium-catalyzed asymmetric inverse-electron-demand Diels-Alder reaction of 4-methyl-2-pyrone with a chiral C5-substituted cyclohexa-1,3-dienol silyl ether is the key feature of the synthesis, which provides the common cis-decalin intermediate with five continuous stereocenters in excellent yield and stereoselectivity. From this diversifiable intermediate, the total synthesis of (+)-teucvin and (+)-2-hydroxyteuscorolide was realized in thirteen and eighteen steps, respectively. From (+)-teucvin, five other pentacyclic 19-nor-clerodanes were divergently and concisely generated through late-stage oxidation state adjustments.
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Affiliation(s)
- Zhi-Mao Zhang
- Department of Chemistry and Research Center for Molecular Recognition and Synthesis, Fudan University 220 Handan Rd. Shanghai 200433 China
| | - Junliang Zhang
- Department of Chemistry and Research Center for Molecular Recognition and Synthesis, Fudan University 220 Handan Rd. Shanghai 200433 China
| | - Quan Cai
- Department of Chemistry and Research Center for Molecular Recognition and Synthesis, Fudan University 220 Handan Rd. Shanghai 200433 China
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18
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Sony Priya K, Sruthi Sri B, Patrick F K, Sangeeta G, Suvarna B P, Murali Krishna K M. Synthesis and screening of clerodane diterpene analogues from 16 hydroxycleroda 3,13(14)-Z-diene 15,16-olide for potential anti-mycobacterial activity. Nat Prod Res 2023:1-9. [PMID: 37929690 DOI: 10.1080/14786419.2023.2275270] [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: 05/03/2023] [Accepted: 10/22/2023] [Indexed: 11/07/2023]
Abstract
In recent years, clerodane diterpenes, a class of bioactive compounds, have come into the spotlight due to their amazing bioactivities. Three novel clerodane diterpene analogues were obtained by synthesising 16-hydroxycleroda-3,13(14)-Z-diene-15,16-olide (Lactone) with primary amines. Anti-tubercular activity was determined using Microplate Alamar Blue Assay. Among all the synthesised compounds from methanolic extract of seeds, results clearly showed that compounds 3 and 5 have significant anti TB activity with an MIC of 1.56 µg/ml against the Mycobacterium tuberculosis MTB H37Rv bacilli strain than the gold standard drugs pyrazinamide (3.13 µg/ml), ciprofloxacin (3.13 µg/ml), streptomycin (6.25 µg/ml) and rifampicin (6.25 µg/ml). Compound 5 exhibited significant antibacterial activity with zone of inhibition of 10.8 mm with Gram + ve and 7.95 mm with Gram -ve bacteria at a conc of 50 µg/ml respectively. In the current investigation, three novel heterocycles (compounds 3-5) of the diterpenoid were prepared, in high yield, using one-pot, efficient approach.
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Affiliation(s)
- Kurati Sony Priya
- Pharmaceutical Chemistry Research Laboratory, Andhra university, Visakhapatnam, India
| | - Bothsa Sruthi Sri
- Pharmaceutical Chemistry Research Laboratory, Andhra university, Visakhapatnam, India
| | - Kimariyo Patrick F
- Pharmaceutical Chemistry Research Laboratory, Andhra university, Visakhapatnam, India
| | - Guruvelli Sangeeta
- Pharmaceutical Chemistry Research Laboratory, Andhra university, Visakhapatnam, India
| | - Perupogu Suvarna B
- Pharmaceutical Chemistry Research Laboratory, Andhra university, Visakhapatnam, India
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19
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Qiu T, Li Y, Wu H, Yang H, Peng Z, Du Z, Wu Q, Wang H, Shen Y, Huang L. Tandem duplication and sub-functionalization of clerodane diterpene synthase originate the blooming of clerodane diterpenoids in Scutellaria barbata. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2023; 116:375-388. [PMID: 37395679 DOI: 10.1111/tpj.16377] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 06/27/2023] [Accepted: 06/29/2023] [Indexed: 07/04/2023]
Abstract
Scutellaria barbata is a traditional Chinese herb medicine and a major source of bioactive clerodane diterpenoids. However, barely clerodanes have been isolated from the closely related S. baicalensis. Here we assembled a chromosome-level genome of S. barbata and identified three class II clerodane diterpene synthases (SbarKPS1, SbarKPS2 and SbaiKPS1) from these two organisms. Using in vitro and in vivo assays, SbarKPS1 was characterized as a monofunctional (-)-kolavenyl diphosphate synthases ((-)-KPS), while SbarKPS2 and SbaiKPS1 produced major neo-cleroda-4(18),13E-dienyl diphosphate with small amount of (-)-KPP. SbarKPS1 and SbarKPS2 shared a high protein sequence identity and formed a tandem gene pair, indicating tandem duplication and sub-functionalization probably led to the evolution of monofunctional (-)-KPS in S. barbata. Additionally, SbarKPS1 and SbarKPS2 were primarily expressed in the leaves and flowers of S. barbata, which was consistent with the distribution of major clerodane diterpenoids scutebarbatine A and B. In contrast, SbaiKPS1 was barely expressed in any tissue of S. baicalensis. We further explored the downstream class I diTPS by functional characterizing of SbarKSL3 and SbarKSL4. Unfortunately, no dephosphorylated product was detected in the coupled assays with SbarKSL3/KSL4 and four class II diTPSs (SbarKPS1, SbarKPS2, SbarCPS2 and SbarCPS4) when a phosphatase inhibitor cocktail was included. Co-expression of SbarKSL3/KSL4 with class II diTPSs in yeast cells did not increase the yield of the corresponding dephosphorylated products, either. Together, these findings elucidated the involvement of two class II diTPSs in clerodane biosynthesis in S. barbata, while the class I diTPS is likely not responsible for the subsequent dephosphorylation step.
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Affiliation(s)
- Ting Qiu
- Institute of Medicinal Plant Physiology and Ecology, School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - YangYan Li
- Institute of Medicinal Plant Physiology and Ecology, School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Haisheng Wu
- Institute of Medicinal Plant Physiology and Ecology, School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Hui Yang
- Institute of Medicinal Plant Physiology and Ecology, School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Ziqiu Peng
- Institute of Medicinal Plant Physiology and Ecology, School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Zuying Du
- Institute of Medicinal Plant Physiology and Ecology, School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Qingwen Wu
- Institute of Medicinal Plant Physiology and Ecology, School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Hongbin Wang
- Institute of Medicinal Plant Physiology and Ecology, School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Yanting Shen
- Institute of Medicinal Plant Physiology and Ecology, School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Lili Huang
- Institute of Medicinal Plant Physiology and Ecology, School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
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20
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Gómez-García A, Jiménez DAA, Zamora WJ, Barazorda-Ccahuana HL, Chávez-Fumagalli MÁ, Valli M, Andricopulo AD, Bolzani VDS, Olmedo DA, Solís PN, Núñez MJ, Rodríguez Pérez JR, Valencia Sánchez HA, Cortés Hernández HF, Medina-Franco JL. Navigating the Chemical Space and Chemical Multiverse of a Unified Latin American Natural Product Database: LANaPDB. Pharmaceuticals (Basel) 2023; 16:1388. [PMID: 37895859 PMCID: PMC10609821 DOI: 10.3390/ph16101388] [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: 08/31/2023] [Revised: 09/22/2023] [Accepted: 09/26/2023] [Indexed: 10/29/2023] Open
Abstract
The number of databases of natural products (NPs) has increased substantially. Latin America is extraordinarily rich in biodiversity, enabling the identification of novel NPs, which has encouraged both the development of databases and the implementation of those that are being created or are under development. In a collective effort from several Latin American countries, herein we introduce the first version of the Latin American Natural Products Database (LANaPDB), a public compound collection that gathers the chemical information of NPs contained in diverse databases from this geographical region. The current version of LANaPDB unifies the information from six countries and contains 12,959 chemical structures. The structural classification showed that the most abundant compounds are the terpenoids (63.2%), phenylpropanoids (18%) and alkaloids (11.8%). From the analysis of the distribution of properties of pharmaceutical interest, it was observed that many LANaPDB compounds satisfy some drug-like rules of thumb for physicochemical properties. The concept of the chemical multiverse was employed to generate multiple chemical spaces from two different fingerprints and two dimensionality reduction techniques. Comparing LANaPDB with FDA-approved drugs and the major open-access repository of NPs, COCONUT, it was concluded that the chemical space covered by LANaPDB completely overlaps with COCONUT and, in some regions, with FDA-approved drugs. LANaPDB will be updated, adding more compounds from each database, plus the addition of databases from other Latin American countries.
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Affiliation(s)
- Alejandro Gómez-García
- DIFACQUIM Research Group, Department of Pharmacy, School of Chemistry, Universidad Nacional Autónoma de México Avenida Universidad 3000, Mexico City 04510, Mexico;
| | - Daniel A. Acuña Jiménez
- CBio3 Laboratory, School of Chemistry, University of Costa Rica, San Pedro, San José 11501-2060, Costa Rica; (D.A.A.J.); (W.J.Z.)
| | - William J. Zamora
- CBio3 Laboratory, School of Chemistry, University of Costa Rica, San Pedro, San José 11501-2060, Costa Rica; (D.A.A.J.); (W.J.Z.)
- Laboratory of Computational Toxicology and Artificial Intelligence (LaToxCIA), Biological Testing Laboratory (LEBi), University of Costa Rica, San Pedro, San José 11501-2060, Costa Rica
- Advanced Computing Lab (CNCA), National High Technology Center (CeNAT), Pavas, San José 1174-1200, Costa Rica
| | - Haruna L. Barazorda-Ccahuana
- Computational Biology and Chemistry Research Group, Vicerrectorado de Investigación, Universidad Católica de Santa Maria, Arequipa 04000, Peru; (H.L.B.-C.); (M.Á.C.-F.)
| | - Miguel Á. Chávez-Fumagalli
- Computational Biology and Chemistry Research Group, Vicerrectorado de Investigación, Universidad Católica de Santa Maria, Arequipa 04000, Peru; (H.L.B.-C.); (M.Á.C.-F.)
| | - Marilia Valli
- Laboratory of Medicinal and Computational Chemistry (LQMC), Centre for Research and Innovation in Biodiversity and Drug Discovery (CIBFar), São Carlos Institute of Physics (IFSC), University of São Paulo (USP), Av. João Dagnone, 1100, São Carlos 13563-120, SP, Brazil; (M.V.); (A.D.A.)
| | - Adriano D. Andricopulo
- Laboratory of Medicinal and Computational Chemistry (LQMC), Centre for Research and Innovation in Biodiversity and Drug Discovery (CIBFar), São Carlos Institute of Physics (IFSC), University of São Paulo (USP), Av. João Dagnone, 1100, São Carlos 13563-120, SP, Brazil; (M.V.); (A.D.A.)
| | - Vanderlan da S. Bolzani
- Nuclei of Bioassays, Biosynthesis and Ecophysiology of Natural Products (NuBBE), Department of Organic Chemistry, Institute of Chemistry, São Paulo State University (UNESP), Av. Prof. Francisco Degni, 55, Araraquara 14800-900, SP, Brazil;
| | - Dionisio A. Olmedo
- Center for Pharmacognostic Research on Panamanian Flora (CIFLORPAN), College of Pharmacy, University of Panama, Av. Manuel E. Batista and Jose De Fabrega, Panama City 3366, Panama; (D.A.O.); (P.N.S.)
| | - Pablo N. Solís
- Center for Pharmacognostic Research on Panamanian Flora (CIFLORPAN), College of Pharmacy, University of Panama, Av. Manuel E. Batista and Jose De Fabrega, Panama City 3366, Panama; (D.A.O.); (P.N.S.)
| | - Marvin J. Núñez
- Natural Product Research Laboratory, School of Chemistry and Pharmacy, University of El Salvador, Final Ave. Mártires Estudiantes del 30 de Julio, San Salvador 01101, El Salvador;
| | - Johny R. Rodríguez Pérez
- GIFES Research Group, School of Chemistry Technology, Universidad Tecnológica de Pereira, Pereira 660003, Colombia; (J.R.R.P.); (H.A.V.S.); (H.F.C.H.)
- GIEPRONAL Research Group, School of Basic Sciences, Technology and Engineering, Universidad Nacional Abierta y a Distancia, Dosquebradas 661001, Colombia
| | - Hoover A. Valencia Sánchez
- GIFES Research Group, School of Chemistry Technology, Universidad Tecnológica de Pereira, Pereira 660003, Colombia; (J.R.R.P.); (H.A.V.S.); (H.F.C.H.)
| | - Héctor F. Cortés Hernández
- GIFES Research Group, School of Chemistry Technology, Universidad Tecnológica de Pereira, Pereira 660003, Colombia; (J.R.R.P.); (H.A.V.S.); (H.F.C.H.)
| | - José L. Medina-Franco
- DIFACQUIM Research Group, Department of Pharmacy, School of Chemistry, Universidad Nacional Autónoma de México Avenida Universidad 3000, Mexico City 04510, Mexico;
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21
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Peng X, Tan Q, Zhang Z, Wu D, Xu J, Zhou H, Gu Q. Discovery of neo-Clerodane Diterpenoids from Ajuga campylantha as Neuroprotective Agents against Ferroptosis and Neuroinflammation. JOURNAL OF NATURAL PRODUCTS 2023; 86:2006-2021. [PMID: 37566645 DOI: 10.1021/acs.jnatprod.3c00447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/13/2023]
Abstract
Twelve new neo-clerodane diterpenoids, eight undescribed methoxy/ethoxy acetal analogues, and one new nor-iridane monoterpenoid were isolated from Ajuga campylantha. Their structures were elucidated using a combination of spectroscopic data, quantum chemical calculations, and X-ray crystallography. This research reveals the distinctive structural features of A. campylantha diterpenes, including distinct C rings and 4,18-double bonds, distinguishing them from diterpenes of other plants in the Ajuga genus. Compound 2 represents the first example of a 19(5→6)-abeo-clerodane formed through a Wagner-Meerwein rearrangement. The isolated compounds were assessed for their neuroprotective effects against RSL3-induced ferroptosis in HT22 cells and LPS-induced neuroinflammation in BV-2 cells. Notably, compound 7 inhibits ferroptosis (EC50 = 10 μM) with a potentially new mechanism of action. The preliminary structure-activity relationship studies revealed that the furan-clerodane diterpenoids possess potential ferroptosis inhibitory activity, while the lactone-clerodanes do not. This study represents the first report of furan-containing clerodanes within the Ajuga genus, providing fresh insights into the phytochemistry and pharmacological potential of A. campylantha.
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Affiliation(s)
- Xing Peng
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Qingyun Tan
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Zhikang Zhang
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Deyin Wu
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Jun Xu
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Huihao Zhou
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Qiong Gu
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
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22
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Kakumu Y, Thi Nguyen MT, Mitsunaga T, Hattori H. Identification of Ecdysteroid Sinapate Esters with COX-2 Inhibitory Effects from Fibraurea recisa Using Molecular Networking and MS2LDA. JOURNAL OF NATURAL PRODUCTS 2023; 86:1960-1967. [PMID: 37530540 DOI: 10.1021/acs.jnatprod.3c00371] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/03/2023]
Abstract
The roots of Fibraurea recisa are recognized as a rich source of protoberberine and aporphine alkaloids, but the non-alkaloidal metabolites in this plant are underexplored. The present study investigated the chemical composition of the plant roots using untargeted metabolomics-based molecular networking and MS2LDA motif annotation, revealing the presence of a characteristic fragment motif related to several sinapoyl-functionalized metabolites. Guided by the targeted motif, two new sinapic acid-ecdysteroid hybrids, named 3-O-sinapoyl makisterone A (1) and 2-O-sinapoyl makisterone A (2), were isolated. The structures of these compounds, including their absolute configuration, were elucidated by HR-ESIQTOFMS, MS2 fragmentation, NMR spectroscopy, and chemical degradation coupled with optical rotation measurements. Although neither compound inhibited nitric oxide (NO) production or inducible nitric oxide synthase (iNOS) protein expression on lipopolysaccharide-induced RAW 264 cells, 2 significantly suppressed cyclooxygenase 2 (COX-2) protein expression at 1-30 μM. Additionally, decreased expression of COX-2 protein was barely observed after treatment with methyl sinapate or makisterone A, the steroid skeleton of 1 and 2. These results indicated that the presence of the sinapoyl moiety at C-2 on the C28-ecdysteroid skeleton played a key role in the selectivity for the suppression of the COX-2 protein expression.
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Affiliation(s)
| | - Minh Tu Thi Nguyen
- School of Biotechnology and Food Technology, Hanoi University of Science and Technology, 1 Dai Co Viet Road, Hanoi 11615, Vietnam
- New Industry Creation Hatchery Center (NICHe), Tohoku University, 6-6-10 Aramaki Aza-Aoba, Aoba-ku, Sendai 980-8579, Japan
| | | | - Hiroyuki Hattori
- Graduate School of Agricultural Science, Tohoku University, 468-1 Aramaki Aza Aoba, Aoba-ku, Sendai 980-8572, Japan
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23
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Martínez-Casares RM, Hernández-Vázquez L, Mandujano A, Sánchez-Pérez L, Pérez-Gutiérrez S, Pérez-Ramos J. Anti-Inflammatory and Cytotoxic Activities of Clerodane-Type Diterpenes. Molecules 2023; 28:4744. [PMID: 37375299 DOI: 10.3390/molecules28124744] [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: 05/09/2023] [Revised: 06/02/2023] [Accepted: 06/09/2023] [Indexed: 06/29/2023] Open
Abstract
The secondary metabolites of clerodane diterpenoids have been found in several plant species from various families and in other organisms. In this review, we included articles on clerodanes and neo-clerodanes with cytotoxic or anti-inflammatory activity from 2015 to February 2023. A search was conducted in the following databases: PubMed, Google Scholar and Science Direct, using the keywords clerodanes or neo-clerodanes with cytotoxicity or anti-inflammatory activity. In this work, we present studies on these diterpenes with anti-inflammatory effects from 18 species belonging to 7 families and those with cytotoxic activity from 25 species belonging to 9 families. These plants are mostly from the Lamiaceae, Salicaceae, Menispermaceae and Euphorbiaceae families. In summary, clerodane diterpenes have activity against different cell cancer lines. Specific antiproliferative mechanisms related to the wide range of clerodanes known today have been described, since many of these compounds have been identified, some of which we barely know their properties. It is very possible that there are even more compounds than those described today, in such a way that makes it an open field to discover. Furthermore, some diterpenes presented in this review have already-known therapeutic targets, and therefore, their potential adverse effects can be predicted in some way.
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Affiliation(s)
- Rubria Marlen Martínez-Casares
- Departamento de Sistemas Biológicos, Universidad Autónoma Metropolitana-Xochimilco, Calzada del Hueso 1100, Coyoacán 04960, CDMX, Mexico
| | - Liliana Hernández-Vázquez
- Departamento de Sistemas Biológicos, Universidad Autónoma Metropolitana-Xochimilco, Calzada del Hueso 1100, Coyoacán 04960, CDMX, Mexico
| | - Angelica Mandujano
- Departamento de Atención a la Salud, Universidad Autónoma Metropolitana-Xochimilco, Calzada del Hueso 1100, Coyoacán 04960, CDMX, Mexico
| | - Leonor Sánchez-Pérez
- Departamento de Atención a la Salud, Universidad Autónoma Metropolitana-Xochimilco, Calzada del Hueso 1100, Coyoacán 04960, CDMX, Mexico
| | - Salud Pérez-Gutiérrez
- Departamento de Sistemas Biológicos, Universidad Autónoma Metropolitana-Xochimilco, Calzada del Hueso 1100, Coyoacán 04960, CDMX, Mexico
| | - Julia Pérez-Ramos
- Departamento de Sistemas Biológicos, Universidad Autónoma Metropolitana-Xochimilco, Calzada del Hueso 1100, Coyoacán 04960, CDMX, Mexico
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24
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Li H, Wu S, Lin R, Xiao Y, Malaco Morotti AL, Wang Y, Galilee M, Qin H, Huang T, Zhao Y, Zhou X, Yang J, Zhao Q, Kanellis AK, Martin C, Tatsis EC. The genomes of medicinal skullcaps reveal the polyphyletic origins of clerodane diterpene biosynthesis in the family Lamiaceae. MOLECULAR PLANT 2023; 16:549-570. [PMID: 36639870 DOI: 10.1016/j.molp.2023.01.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 11/21/2022] [Accepted: 01/09/2023] [Indexed: 06/09/2023]
Abstract
The presence of anticancer clerodane diterpenoids is a chemotaxonomic marker for the traditional Chinese medicinal plant Scutellaria barbata, although the molecular mechanisms behind clerodane biosynthesis are unknown. Here, we report a high-quality assembly of the 414.98 Mb genome of S. barbata into 13 pseudochromosomes. Using phylogenomic and biochemical data, we mapped the plastidial metabolism of kaurene (gibberellins), abietane, and clerodane diterpenes in three species of the family Lamiaceae (Scutellaria barbata, Scutellaria baicalensis, and Salvia splendens), facilitating the identification of genes involved in the biosynthesis of the clerodanes, kolavenol, and isokolavenol. We show that clerodane biosynthesis evolved through recruitment and neofunctionalization of genes from gibberellin and abietane metabolism. Despite the assumed monophyletic origin of clerodane biosynthesis, which is widespread in species of the Lamiaceae, our data show distinct evolutionary lineages and suggest polyphyletic origins of clerodane biosynthesis in the family Lamiaceae. Our study not only provides significant insights into the evolution of clerodane biosynthetic pathways in the mint family, Lamiaceae, but also will facilitate the production of anticancer clerodanes through future metabolic engineering efforts.
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Affiliation(s)
- Haixiu Li
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China
| | - Song Wu
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ruoxi Lin
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China
| | - Yiren Xiao
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ana Luisa Malaco Morotti
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China
| | - Ya Wang
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Meytal Galilee
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China
| | - Haowen Qin
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China
| | - Tao Huang
- Novogene Bioinformatics Institute, Beijing, China
| | - Yong Zhao
- Novogene Bioinformatics Institute, Beijing, China
| | - Xun Zhou
- Novogene Bioinformatics Institute, Beijing, China
| | - Jun Yang
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China; Shanghai Key Laboratory of Plant Functional Genomics and Resources, Shanghai Chenshan Botanical Garden, Shanghai Chenshan Plant Science Research Center, Chinese Academy of Sciences, Shanghai 201602, China
| | - Qing Zhao
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China; Shanghai Key Laboratory of Plant Functional Genomics and Resources, Shanghai Chenshan Botanical Garden, Shanghai Chenshan Plant Science Research Center, Chinese Academy of Sciences, Shanghai 201602, China
| | - Angelos K Kanellis
- Group of Biotechnology of Pharmaceutical Plants, Lab. of Pharmacognosy, Department of Pharmaceutical Sciences, Aristotle University of Thessaloniki, 541 24 Thessaloniki, Greece
| | | | - Evangelos C Tatsis
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China; CEPAMS - CAS-JIC Centre of Excellence for Plant and Microbial Sciences, Shanghai 200032, China.
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25
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Keller M, Chabane S, Danton O, Prescimone A, Boudjelal A, Hamburger M, Potterat O. New neo-clerodane diterpenes from Teucrium polium subsp. capitatum. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2023.135447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
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26
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Sustainable Production of Ajuga Bioactive Metabolites Using Cell Culture Technologies: A Review. Nutrients 2023; 15:nu15051246. [PMID: 36904246 PMCID: PMC10005297 DOI: 10.3390/nu15051246] [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: 12/25/2022] [Revised: 02/20/2023] [Accepted: 02/26/2023] [Indexed: 03/06/2023] Open
Abstract
The genus Ajuga (Lamiaceae) is rich in medicinally important species with biological activities ranging from anti-inflammatory, antitumor, neuroprotective, and antidiabetic to antibacterial, antiviral, cytotoxic, and insecticidal effects. Every species contains a unique and complex mixture of bioactive metabolites-phytoecdysteroids (PEs), iridoid glycosides, withanolides, neo-clerodane terpenoids, flavonoids, phenolics, and other chemicals with high therapeutic potential. Phytoecdysteroids, the main compounds of interest, are natural anabolic and adaptogenic agents that are widely used as components of dietary supplements. Wild plants remain the main source of Ajuga bioactive metabolites, particularly PEs, which leads to frequent overexploitation of their natural resources. Cell culture biotechnologies offer a sustainable approach to the production of vegetative biomass and individual phytochemicals specific for Ajuga genus. Cell cultures developed from eight Ajuga taxa were capable of producing PEs, a variety of phenolics and flavonoids, anthocyanins, volatile compounds, phenyletanoid glycosides, iridoids, and fatty acids, and demonstrated antioxidant, antimicrobial, and anti-inflammatory activities. The most abundant PEs in the cell cultures was 20-hydroxyecdysone, followed by turkesterone and cyasterone. The PE content in the cell cultures was comparable or higher than in wild or greenhouse plants, in vitro-grown shoots, and root cultures. Elicitation with methyl jasmonate (50-125 µM) or mevalonate and induced mutagenesis were the most effective strategies that stimulated cell culture biosynthetic capacity. This review summarizes the current progress in cell culture application for the production of pharmacologically important Ajuga metabolites, discusses various approaches to improve the compound yield, and highlights the potential directions for future interventions.
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27
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Hassan HA, Ayoub IM, Ragab TIM, Afifi SM, El-Gendy AENG, Farrag ARH, Abd-ELGawad AM, Farag M, Elshamy A, Ammar NM. Metabolomics approach of Symphyotrichum squamatum ethanol extract and its nano-Ag formulation protective effect on gastric ulcer via bio-chemical and pathological analyses. Biomarkers 2023; 28:190-205. [PMID: 36484430 DOI: 10.1080/1354750x.2022.2157488] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
ContextGastric ulcer (GU) a widely distributed ailment is associated with many causes, including alcohol consumption.Materials and MethodsChemical profiling of Symphyotrichum squamatum ethanol extract (SSEE) was established via ultra-performance liquid chromatography/quadrupole time-of-flight mass spectrometry (UPLC-qTOF-MS) and employed in a silver nano-formulation (SSEE-N-Ag). SSEE and SSEE-N-Ag antiulcer activities were estimated against ethanol-induced rats by biochemical, histological, and metabolomics assessments. Reduced glutathione, total antioxidant capacity and prostaglandin E2 levels and gastric mucosa histopathological examination were analysed. The rats' metabolome changing alongside action pathways were elucidated via metabolite profile coupled to multivariate data analysis.ResultsUPLC-MS profiling of SSEE identified 75 components belonging to various classes. Compared with control, EtOH-treated rats showed decreased of tissue GSH, TAC and PGE2 by 62.32%, 51.85% and 47.03% respectively. SSEE and SSEE-N-Ag administration mitigated biochemical and histopathological alterations. Serum metabolomics analysis revealed for changes in several low molecular weight metabolites with ulcer development. These metabolites levels were restored to normal post-administration of SSEE-N-Ag. SSEE-N-Ag as mediated via modulating numerous metabolic pathways such as lipids, pyrimidine, energy metabolism and phosphatidylinositol signalling. This study provides novel insight for metabolic mechanisms underlying gastric ulcer relieving effect.ConclusionPresent results revealed potential antiulcer effect of SSEE and SSEE-N-Ag by decreasing ulcer-associated syndromes, supporting their anti-ulcerogenic action.
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Affiliation(s)
- Heba A Hassan
- Therapeutic Chemistry Department, Pharmaceutical and Drugs Research Institute, National Research Centre, Giza, Egypt
| | - Iriny M Ayoub
- Pharmacognosy Department, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Tamer I M Ragab
- Chemistry of Natural and Microbial Products Department, National Research Centre, Giza, Egypt
| | - Sherif M Afifi
- Pharmacognosy Department, Faculty of Pharmacy, University of Sadat City, Sadat City, Egypt
| | | | | | - Ahmed M Abd-ELGawad
- Department of Botany, Faculty of Science, Mansoura University, Mansoura, Egypt
| | - Mohamed Farag
- Pharmacognosy Department, College of Pharmacy, Cairo University, Cairo, Egypt
| | - Abdelsamed Elshamy
- Department of Natural Compounds Chemistry, National Research Center, Giza, Egypt
| | - Naglaa M Ammar
- Therapeutic Chemistry Department, Pharmaceutical and Drugs Research Institute, National Research Centre, Giza, Egypt
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28
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Li W, Gan L, Yuan FY, Sang J, Huang D, Yin AP, Pu R, Tang GH, Guo D, Yin S. Biscroyunoid A, an Anti-Hepatic Fibrotic 19- nor-Clerodane Diterpenoid Dimer with a C-16-C-12' Linkage from Croton yunnanensis. JOURNAL OF NATURAL PRODUCTS 2023; 86:434-439. [PMID: 36792549 DOI: 10.1021/acs.jnatprod.2c01054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Biscroyunoid A (1), a 19-nor-clerodane diterpenoid dimer featuring a unique C-16-C-12' linkage and containing an unusual 4,7-dihydro-5H-spiro[benzofuran-6,1'-cyclohexane] motif, together with its biosynthetic precursor, croyunoid A (2), were isolated from Croton yunnanensis. Their structures were determined by spectroscopic, computational, and single-crystal X-ray diffraction methods. Compound 1 exerted an antihepatic fibrosis effect in LX-2 cells via inhibition of TGFβ-Smad2/3 signaling.
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Affiliation(s)
- Wei Li
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan 528400, People's Republic of China
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Lu Gan
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Fang-Yu Yuan
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Jun Sang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Dong Huang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Ai-Ping Yin
- Department of Clinical Laboratory, The Third People's Hospital of Dongguan, Dongguan 523326, People's Republic of China
| | - Rong Pu
- Department of Clinical Laboratory, The Third People's Hospital of Dongguan, Dongguan 523326, People's Republic of China
| | - Gui-Hua Tang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Dean Guo
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan 528400, People's Republic of China
| | - Sheng Yin
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
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29
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Ledoux A, Hamann C, Bonnet O, Jullien K, Quetin-Leclercq J, Tchinda A, Smadja J, Gauvin-Bialecki A, Maquoi E, Frédérich M. Bioactive Clerodane Diterpenoids from the Leaves of Casearia coriacea Vent. Molecules 2023; 28:molecules28031197. [PMID: 36770864 PMCID: PMC9918898 DOI: 10.3390/molecules28031197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 01/17/2023] [Accepted: 01/18/2023] [Indexed: 01/27/2023] Open
Abstract
Casearia coriacea Vent., an endemic plant from the Mascarene Islands, was investigated following its antiplasmodial potentialities highlighted during a previous screening. Three clerodane diterpene compounds were isolated and identified as being responsible for the antiplasmodial activity of the leaves of the plant: caseamembrin T (1), corybulosin I (2), and isocaseamembrin E (3), which exhibited half maximal inhibitory concentrations (IC50) of 0.25 to 0.51 µg/mL. These compounds were tested on two other parasites, Leishmania mexicana mexicana and Trypanosoma brucei brucei, to identify possible selectivity in one of them. Although these products possess both antileishmanial and antitrypanosomal properties, they displayed selectivity for the malaria parasite, with a selectivity index between 6 and 12 regarding antitrypanosomal activity and between 25 and 100 regarding antileishmanial activity. These compounds were tested on three cell lines, breast cancer cells MDA-MB-231, pulmonary adenocarcinoma cells A549, and pancreatic carcinoma cells PANC-1, to evaluate their selectivity towards Plasmodium. This has not enabled us to establish selectivity for Plasmodium, but has revealed the promising activity of compounds 1-3 (IC50 < 2 µg/mL), particularly against pancreatic carcinoma cells (IC50 < 1 µg/mL). The toxicity of the main compound, caseamembrin T (1), was then evaluated on zebrafish embryos to extend our cytotoxicity study to normal, non-cancerous cells. This highlighted the non-negligible toxicity of caseamembrin T (1).
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Affiliation(s)
- Allison Ledoux
- Laboratory of Pharmacognosy, Center of Interdisciplinary Research on Medicines, CIRM, University of Liège, Avenue Hippocrate 15, 4000 Liège, Belgium
- Correspondence: ; Tel.: +32-4366-43-90
| | - Carla Hamann
- Laboratory of Pharmacognosy, Center of Interdisciplinary Research on Medicines, CIRM, University of Liège, Avenue Hippocrate 15, 4000 Liège, Belgium
- Laboratory of Biology of Tumor and Development, GIGA/CIRM, University of Liège, Avenue Hippocrate 15, 4000 Liège, Belgium
| | - Olivier Bonnet
- Laboratory of Pharmacognosy, Center of Interdisciplinary Research on Medicines, CIRM, University of Liège, Avenue Hippocrate 15, 4000 Liège, Belgium
| | - Kateline Jullien
- Laboratory of Pharmacognosy, Center of Interdisciplinary Research on Medicines, CIRM, University of Liège, Avenue Hippocrate 15, 4000 Liège, Belgium
| | - Joëlle Quetin-Leclercq
- Pharmacognosy Research Group, Louvain Drug Research Institute, LDRI, Université Catholique de Louvain, UCLouvain, Avenue E. Mounier, B1 72.03, B-1200 Brussels, Belgium
| | - Alembert Tchinda
- Laboratory of Pharmacognosy, Center of Interdisciplinary Research on Medicines, CIRM, University of Liège, Avenue Hippocrate 15, 4000 Liège, Belgium
| | - Jacqueline Smadja
- Laboratoire de Chimie des Substances Naturelles et des Sciences des Aliments, Université de Réunion, Avenue René Cassin 15, BP 7151, 97715 Saint-Denis, La Réunion, France
| | - Anne Gauvin-Bialecki
- Laboratoire de Chimie des Substances Naturelles et des Sciences des Aliments, Université de Réunion, Avenue René Cassin 15, BP 7151, 97715 Saint-Denis, La Réunion, France
| | - Erik Maquoi
- Laboratory of Biology of Tumor and Development, GIGA/CIRM, University of Liège, Avenue Hippocrate 15, 4000 Liège, Belgium
| | - Michel Frédérich
- Laboratory of Pharmacognosy, Center of Interdisciplinary Research on Medicines, CIRM, University of Liège, Avenue Hippocrate 15, 4000 Liège, Belgium
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30
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Li Y, Zhao N, Ye J, Xu F, Li T, Lang T. The crystal structure of strictic acid, C 20H 26O 3. Z KRIST-NEW CRYST ST 2023. [DOI: 10.1515/ncrs-2022-0591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Abstract
C20H26O3, orthorhombic, P21212 (no. 18), a = 10.0361(11) Å, b = 18.542(2) Å, c = 9.7357(12) Å, V = 1811.7(4) Å3, Z = 4, R
gt
(F) = 0.0535, wR
ref
(F
2) = 0.1553, T = 273(2) K.
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Affiliation(s)
- Yijv Li
- School of Pharmacy Guizhou University of Traditional Chinese Medicine , Guiyang 550025 , China
| | - Nengwu Zhao
- School of Pharmacy Guizhou University of Traditional Chinese Medicine , Guiyang 550025 , China
| | - Jianghai Ye
- School of Pharmacy Guizhou University of Traditional Chinese Medicine , Guiyang 550025 , China
| | - Fangfang Xu
- School of Pharmacy Guizhou University of Traditional Chinese Medicine , Guiyang 550025 , China
| | - Tiantian Li
- School of Pharmacy Guizhou University of Traditional Chinese Medicine , Guiyang 550025 , China
| | - Tianqiong Lang
- School of Pharmacy Guizhou University of Traditional Chinese Medicine , Guiyang 550025 , China
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31
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Shen SM, Li SW, Su MZ, Yao LG, Appendino G, Guo YW. Structurally Diverse Diterpenoids from the Sanya Bay Nudibranch Hexabranchus sanguineus and Its Sponge-Prey Chelonaplysilla sp. Chemistry 2023; 29:e202203858. [PMID: 36617497 DOI: 10.1002/chem.202203858] [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: 12/09/2022] [Revised: 01/05/2023] [Accepted: 01/06/2023] [Indexed: 01/10/2023]
Abstract
Investigation of the South China Sea nudibranch Hexabranchus sanguineus from Sanya Bay afforded, in addition to three known compounds, nine new diterpenoids of the 5,19-cycloclerodane- (sanyanolides A-D), clerodane- (sanyanolide E) and subersin- (sanyanolides F-I) type. Remarkably, six diterpenoids aforementioned from H. sanguineus were also isolated from the sponge Chelonaplysilla sp. from the same water region, suggesting a trophic relationship between H. sanguineus and Chelonaplysilla sp. The structure and absolute configuration of new compounds were established by a combination of spectroscopic data, X-ray diffraction analysis and/or time-dependent density functional theory/electronic circular dichroism calculations. A plausible biogenetic relationship between these diterpenoids, along with the chemo-ecological implications of their co-occurrence in the two organisms investigated, was proposed and discussed. In in vitro bioassays, echinoclerodane A exhibited a potent inhibitory effect (IC50 =2.81 μM) on LPS-induced inflammatory response in RAW 264.7 macrophage cells. In addition, echinoclerodane A and oculatolide showed considerable antibacterial activities with MIC values ranging from 1.0 to 8.0 μg/mL.
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Affiliation(s)
- Shou-Mao Shen
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Zhangjiang Hi-Tech Park, 201203, Shanghai, P. R. China.,School of Chinese Materia Medica, Nanjing University of Chinese Medicine, 210023, Nanjing, P. R. China
| | - Song-Wei Li
- College of Pharmaceutical Science and Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, 310014, Hangzhou, P. R. China
| | - Ming-Zhi Su
- Shandong Laboratory of Yantai Drug Discovery, Bohai Rim Advanced Research Institute for Drug Discovery, 264117, Yantai, Shandong, P. R. China
| | - Li-Gong Yao
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Zhangjiang Hi-Tech Park, 201203, Shanghai, P. R. China
| | - Giovanni Appendino
- Dipartimento di Scienze del Farmaco, Università del Piemonte Orientale, Largo Donegani 2, 28100, Novara, Italy
| | - Yue-Wei Guo
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Zhangjiang Hi-Tech Park, 201203, Shanghai, P. R. China.,School of Chinese Materia Medica, Nanjing University of Chinese Medicine, 210023, Nanjing, P. R. China.,Shandong Laboratory of Yantai Drug Discovery, Bohai Rim Advanced Research Institute for Drug Discovery, 264117, Yantai, Shandong, P. R. China
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32
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Antihyperalgesic and Antiallodynic Effects of Amarisolide A and Salvia amarissima Ortega in Experimental Fibromyalgia-Type Pain. Metabolites 2022; 13:metabo13010059. [PMID: 36676984 PMCID: PMC9863681 DOI: 10.3390/metabo13010059] [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: 11/26/2022] [Revised: 12/21/2022] [Accepted: 12/23/2022] [Indexed: 01/03/2023] Open
Abstract
Salvia amarissima Ortega is an endemic species of Mexico used in folk medicine to alleviate pain and as a nervous tranquilizer. The S. amarissima extract and one of its abundant metabolites, identified and isolated through chromatographic techniques, were investigated to obtain scientific evidence of its potential effects to relieve nociplastic pain such as fibromyalgia. Then, the extract and amarisolide A (3-300 mg/kg, i.p.) were pharmacologically evaluated in reserpine-induced fibromyalgia-type chronic pain and in depressive-like behavior (as a common comorbidity) by using the forced swimming test in rats. The 5-HT1A serotonin receptor (selective antagonist WAY100635, 1 mg/kg, i.p.) was explored after the prediction of a chemical interaction using in silico analysis to look for a possible mechanism of action of amarisolide A. Both the extract and amarisolide A produced significant and dose-dependent antihyperalgesic and antiallodynic effects in rats, as well as significant antidepressive behavior without sedative effects when the antinociceptive dosages were used. The 5-HT1A serotonin receptor participation was predicted by the in silico descriptors and was corroborated in the presence of WAY100635. In conclusion, S. amarissima possesses antihyperalgesic, antiallodynic, and anti-depressive activities, partially due to the presence of amarisolide A, which involves the 5-HT1A serotonin receptor. This pharmacological evidence suggests that S. amarissima and amarisolide A are both potential alternatives to relieve pain-like fibromyalgia.
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33
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Lima JDR, Ferreira MKA, Sales KVB, da Silva AW, Marinho EM, Magalhães FEA, Marinho ES, Marinho MM, da Rocha MN, Bandeira PN, Teixeira AMR, de Menezes JESA, Dos Santos HS. Diterpene Sonderianin isolated from Croton blanchetianus exhibits acetylcholinesterase inhibitory action and anxiolytic effect in adult zebrafish ( Danio rerio) by 5-HT system. J Biomol Struct Dyn 2022; 40:13625-13640. [PMID: 34696690 DOI: 10.1080/07391102.2021.1991477] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Croton blanchetianus is known as 'marmeleiro preto', a very widespread shrub in Northeast Brazil. Terpenoids, steroids and phenolic compounds are among the reported secondary metabolites of the Croton genus that are a potential source of bioactive compounds. This study evaluated the anxiolytic potential of clerodine-type diterpene, sonderianin (CBWS) isolated from the stem bark of C. blanchetianus and its mechanism of action in adult zebrafish (Danio rerio) (ZFa). The anticonvulsant and anti-acetylcholinesterase effects have also been explored. ZFa (n = 6/group) were treated intraperitoneally (ip; 20 µL) with CBWS (4, 12 and 40 mg/kg) and vehicle (3% DMSO; 20 µL) and subjected to locomotor activity tests, as well as toxicity acute 96 h. CBWS was also administered for analysis in the light/dark test. The involvement of the serotonergic system (5-HT) was investigated using 5-HTR1, 5-HTR2A/2C and 5-HTR3A/3B receptor antagonists. Anxiolytic doses were tested for pentylenetetrazol-induced seizure in ZFa. The inhibitory activity of the enzyme acetylcholinesterase (AChE) was measured. CBWS was not considered toxic and reduced locomotor activity. The results of the present study identified for the first time the interaction of the diterpene sonderianina in the CNS. This study provides evidence that CBWS has an anxiolytic effect mediated by serotonergic (5-HT) involvement and anti-acetylcholinesterase action. The 5-HTR1 and 5-HTR2A/2C receptors may be implicated in the low anticonvulsant effect in CBWS.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Joyce Dos Reis Lima
- State University of Ceará, Science and Technology, Graduate Program in Natural Sciences, Fortaleza, CE, Brazil
| | | | | | - Antônio Wlisses da Silva
- Northeast Biotechnology Network, Graduate Program of Biotechnology, State University of Ceará, Fortaleza, CE, Brazil
| | - Emanuelle Machado Marinho
- Department of Analytical Chemistry and Physical Chemistry, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Francisco Ernani Alves Magalhães
- Department of Chemistry, Laboratory of Natural Products Bioprospecting and Biotechnology, State University of Ceará, CECITEC Campus, Tauá, CE, Brazil
| | - Emmanuel Silva Marinho
- State University of Ceará, Faculty of Philosophy Dom Aureliano Matos, Limoeiro do Norte, CE, Brazil
| | - Márcia Machado Marinho
- Faculty of Education, Science and Letters of Iguatu, State University of Ceará, Iguatu, CE, Brazil
| | - Matheus Nunes da Rocha
- State University of Ceará, Faculty of Philosophy Dom Aureliano Matos, Limoeiro do Norte, CE, Brazil
| | | | | | | | - Hélcio Silva Dos Santos
- State University of Ceará, Science and Technology, Graduate Program in Natural Sciences, Fortaleza, CE, Brazil.,Northeast Biotechnology Network, Graduate Program of Biotechnology, State University of Ceará, Fortaleza, CE, Brazil.,Department of Biological Chemistry, Regional University of Cariri, Crato, Ceará, Brazil.,Chemistry Course, State University of Vale do Acaraú, Sobral, CE, Brazil
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34
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Hell T, Dobrzyński M, Gröflin F, Reinhardt JK, Dürr L, Pertz O, Hamburger M, Garo E. Flavonoids from Ericameria nauseosa inhibiting PI3K/AKT pathway in human melanoma cells. Biomed Pharmacother 2022; 156:113754. [DOI: 10.1016/j.biopha.2022.113754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Accepted: 09/26/2022] [Indexed: 11/02/2022] Open
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35
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Escandón-Rivera SM, Andrade-Cetto A, Rosas-Ramírez DG, Arreguín-Espinosa R. Phytochemical Screening and Isolation of New Ent-Clerodane Diterpenoids from Croton guatemalensis Lotsy. PLANTS (BASEL, SWITZERLAND) 2022; 11:3159. [PMID: 36432893 PMCID: PMC9692395 DOI: 10.3390/plants11223159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 11/02/2022] [Accepted: 11/15/2022] [Indexed: 06/16/2023]
Abstract
Phytochemical screening of an ethanol-water extract (EWE) from the bark of Croton guatemalensis led to the isolation and identification of eight compounds, among them: five ent-clerodane diterpenoids [junceic acid (1), 6(s)-acetoxy-15,16-diepoxy-ent-cleroda-3,13(16),14-trien-20-oic acid (crotoguatenoic acid A) (2), 6(s)-hydroxyoxy-15,16-diepoxy-ent-cleroda-3,13(16),14-trien-20-oic acid (crotoguatenoic acid B) (3), formosin F (4), bartsiifolic acid (5)], and three flavonoids [rutin (6), epicatechin (7), and quercetin (8)]. Of these, 2 and 3 are reported here for the first time. Structures were established through conventional spectroscopy methods and their absolute configurations were determined by optical rotation and comparison of experimental electronic circular dichroism (ECD) and theoretical calculated ECD spectra. A suitable high performance liquid chromatography (HPLC) method for quantifying rutin (6) was developed and validated according to standard protocols. Affinity-directed fractionation was used to identify possible in vitro active compounds on α-glucosidases from Saccharomyces cerevisiae. HPLC-ESI-MS was used to identify the inhibitors as free ligands after being released from the enzymatic complex by denaturing acidic conditions. The affinity studies led to the identification of ent-clerodane diterpenoids as active compounds. In silico analysis allowed us to determine the best conformational rearrangement for the α-glucosidase inhibitors.
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Affiliation(s)
- Sonia Marlen Escandón-Rivera
- Departamento de Biología Celular, Facultad de Ciencias, Universidad Nacional Autónoma de México, Av. Universidad 3000, Circuito Exterior S/N, Coyoacán, Ciudad Universitaria, Mexico City 04510, Mexico
| | - Adolfo Andrade-Cetto
- Departamento de Biología Celular, Facultad de Ciencias, Universidad Nacional Autónoma de México, Av. Universidad 3000, Circuito Exterior S/N, Coyoacán, Ciudad Universitaria, Mexico City 04510, Mexico
| | - Daniel Genaro Rosas-Ramírez
- Departamento de Biomacromoléculas, Instituto de Química, Universidad Nacional Autónoma de México, Av. Universidad 3000, Circuito Exterior S/N, Coyoacán, Ciudad Universitaria, Mexico City 04510, Mexico
| | - Roberto Arreguín-Espinosa
- Departamento de Biomacromoléculas, Instituto de Química, Universidad Nacional Autónoma de México, Av. Universidad 3000, Circuito Exterior S/N, Coyoacán, Ciudad Universitaria, Mexico City 04510, Mexico
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36
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Modular total syntheses of trans-clerodanes and sesquiterpene (hydro)quinones via tail-to-head cyclization and reductive coupling strategies. Nat Commun 2022; 13:6633. [PMID: 36333313 PMCID: PMC9636166 DOI: 10.1038/s41467-022-34404-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Accepted: 10/24/2022] [Indexed: 11/06/2022] Open
Abstract
The trans-clerodanes and sesquiterpene (hydro)quinones are a growing class of natural products that exhibit a wide range of biological activities. Although they are different types of natural products, some of them feature the same trans-decalin core structure. Here, we report the total syntheses of two members of trans-clerodanes, five members of sesquiterpene (hydro)quinones as well as the proposed structure of dysidavarone D via a modular synthetic route. A bioinspired tail-to-head cyclization strategy was developed to syntheses of the trans-decalin architectures by using two diastereochemically complementary radical polyene cyclization reactions catalyzed by Ti(III) and mediated by Mn(III), respectively. The different types of side chains were introduced by challenging nickel catalyzed reductive couplings of sterically hindered alkyl halides. The synthesis of the proposed dysidavarone D proved a wrong structural assignment of the natural product.
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37
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Novel Aporphine- and Proaporphine-Clerodane Hybrids Identified from the Barks of Taiwanese Polyalthia longifolia (Sonn.) Thwaites var. pendula with Strong Anti-DENV2 Activity. Pharmaceuticals (Basel) 2022; 15:ph15101218. [PMID: 36297330 PMCID: PMC9610793 DOI: 10.3390/ph15101218] [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: 08/16/2022] [Revised: 09/20/2022] [Accepted: 09/28/2022] [Indexed: 11/16/2022] Open
Abstract
Hybrid natural products produced via mixed biosynthetic pathways are unique and often surprise one with unexpected medicinal properties in addition to their fascinating structural complexity/diversity. In view of chemical structures, hybridization is a way of diversifying natural products usually through dimerization of two similar or dissimilar subcomponents through a C-C or N-C covalent linkage. Here, we report four structurally attractive diterpene-alkaloid conjugates polyalongarins A-D (1-4), clerodane-containing aporphine and proaporphine alkaloids, the first of its kind from the barks of Taiwanese Polyalthia longifolia (Sonn.) Thwaites var. pendula. In addition to conventional spectroscopic analysis, single crystal X-ray crystallography was employed to determine the chemical structures and stereo-configurations of 1. Compounds 1-4 were subsequently subjected to in vitro antiviral examination against DENV2 by evaluating the expression level of the NS2B protein in DENV2-infected Huh-7 cells. These compounds display encouraging anti-DENV2 activity with superb EC50 (2.8-6.4 μM) and CC50 values (50.4-200 μM). The inhibitory mechanism of 1-4 on NS2B was further explored drawing on in-silico molecular docking analysis. Based on calculated binding affinities and predicted interactions between the functional groups of 1-4 and the allosteric-site residues of the DENV2 NS2B-NS3 protease, our analysis concludes that the clerodane-aporphine/proaporphine-type hybrids are novel and effective DENV NS2B-NS3 protease inhibitors.
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38
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Biologically Active Diterpenoids in the Clerodendrum Genus—A Review. Int J Mol Sci 2022; 23:ijms231911001. [PMID: 36232298 PMCID: PMC9569547 DOI: 10.3390/ijms231911001] [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: 04/03/2022] [Revised: 09/04/2022] [Accepted: 09/09/2022] [Indexed: 11/22/2022] Open
Abstract
One of the key areas of interest in pharmacognosy is that of the diterpenoids; many studies have been performed to identify new sources, their optimal isolation and biological properties. An important source of abietane-, pimarane-, clerodane-type diterpenoids and their derivatives are the members of the genus Clerodendrum, of the Lamiaceae. Due to their diverse chemical nature, and the type of plant material, a range of extraction techniques are needed with various temperatures, solvent types and extraction times, as well as the use of an ultrasound bath. The diterpenoids isolated from Clerodendrum demonstrate a range of cytotoxic, anti-proliferative, antibacterial, anti-parasitic and anti-inflammatory activities. This review describes the various biological activities of the diterpenoids isolated so far from species of Clerodendrum with the indication of the most active ones, as well as those from other plant sources, taking into account their structure in terms of their activity, and summarises the methods for their extraction.
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39
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Maleki S, Akaberi T, Emami SA, Akaberi M. Diterpenes of Scutellaria spp.: Phytochemistry and pharmacology. PHYTOCHEMISTRY 2022; 201:113285. [PMID: 35728674 DOI: 10.1016/j.phytochem.2022.113285] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 06/12/2022] [Accepted: 06/13/2022] [Indexed: 06/15/2023]
Abstract
Scutellaria genus, a member of the Lamiaceae family, distributed worldwide and known as skullcaps, contains a wide range of pharmacologically active constituents including flavonoids and diterpenes. There are different classes of diterpenes in the plant kingdom, of which many have medicinal applications. Scutellaria spp. contain neo-clerodane diterpenes, a large group of naturally occurring specialized metabolites found in both plant species and in organisms from other taxonomic groups, such as fungi, bacteria, and marine sponges. Although many phytochemical studies have been established reporting interesting specialized diterpene structures from Scutellaria spp., there has not been a comprehensive study reviewing these compounds. Hence, the present review reports on natural diterpenoids from the Scutellaria genus and their pharmacological activities. For this purpose, the scientific databases including Scopus, PubMed, and Google Scholar were searched using the keywords "Scutellaria" and "Diterpenes" or "Diterpenoids". The literature review showed that up to now, more than 300 diterpenes have been isolated and reported from the Scutellaria genus, belonging to neo-clerodane scaffolds. Anticancer, antifeedant, phytotoxic, antimicrobial, and nitric oxide production inhibitory activities are the most reported properties for the diterpenoids from the Scutellaria genus. Diterpenes of Scutellaria spp. have therapeutic potentials to be used for the treatment of different diseases. Further phytochemical, pharmacological, and clinical studies are required in this regard.
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Affiliation(s)
- Sina Maleki
- Department of Pharmacognosy, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Toktam Akaberi
- Department of Organic Chemistry, Ferdowsi University, Mashhad, Iran.
| | - Seyed Ahmad Emami
- Department of Pharmacognosy, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Traditional Pharmacy, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Maryam Akaberi
- Department of Pharmacognosy, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
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40
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Settipalli PC, Anwar S. A triple cascade approach towards the diastereoselective synthesis of spiro trans-decalinol scaffolds. Chem Commun (Camb) 2022; 58:10400-10403. [PMID: 36039826 DOI: 10.1039/d2cc03562f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A [2+2+2] annulation reaction between cyclohexanone, β-nitrostyrene and 2-arylidene-1,3-indanedione afforded multisubstituted spiro trans-decalinol derivatives in high chemical yields (up to 75%) and excellent diastereoselectivity (up to >20 : 1) at room temperature. This one-pot three-component system follows a triple cascade sequence via the Michael/nitro-Michael/Aldol process, resulting in the formation of three C-C bonds, five contiguous stereocenters as well as a spiro quaternary carbon center.
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Affiliation(s)
- Poorna Chandrasekhar Settipalli
- Deparment of Chemistry, School of Applied Sciences and Humanities, Vignan's Foundation for Science Technology and Research-VFSTR (Deemed to be University), Vadlamudi-522 213, Guntur, Andhra Pradesh, India.
| | - Shaik Anwar
- Deparment of Chemistry, School of Applied Sciences and Humanities, Vignan's Foundation for Science Technology and Research-VFSTR (Deemed to be University), Vadlamudi-522 213, Guntur, Andhra Pradesh, India.
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41
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Forzato C, Nitti P. New Diterpenes with Potential Antitumoral Activity Isolated from Plants in the Years 2017-2022. PLANTS (BASEL, SWITZERLAND) 2022; 11:2240. [PMID: 36079622 PMCID: PMC9460660 DOI: 10.3390/plants11172240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 07/29/2022] [Accepted: 08/16/2022] [Indexed: 06/15/2023]
Abstract
Diterpenes represent a wider class of isoprenoids, with more than 18,000 isolated compounds, and are present in plants, fungi, bacteria, and animals in both terrestrial and marine environments. Here, we report on the fully characterised structures of 251 new diterpenes, isolated from higher plants and published from 2017, which are shown to have antitumoral activity. An overview on the most active compounds, showing IC50 < 20 μM, is provided for diterpenes of different classes. The most active compounds were extracted from 29 different plant families; particularly, Euphorbiaceae (69 compounds) and Lamiaceae (54 compounds) were the richest sources of active compounds. A better activity than the positive control was obtained with 33 compounds against the A549 cell line, 28 compounds against the MCF-7 cell line, 9 compounds against the HepG2 cell line, 8 compounds against the Hep3B cell line, 19 compounds against the SMMC-7721 cell line, 9 compounds against the HL-60 cell line, 24 compounds against the SW480 cell line, and 19 compounds against HeLa.
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42
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Chang Y, Sun C, Wang C, Huo X, Zhao W, Ma X. Biogenetic and biomimetic synthesis of natural bisditerpenoids: hypothesis and practices. Nat Prod Rep 2022; 39:2030-2056. [PMID: 35983892 DOI: 10.1039/d2np00039c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Covering: up to March 2022Bisditerpenoids, or diterpenoid dimers, are a group of natural products with high structural variance, deriving from homo- or hetero-dimeric coupling of two diterpenoid units. They usually possess complex architectures resulting from the diversity of monomeric diterpenoids as building blocks and the dimerization processes. These compounds have attracted the attention of synthetic and biological scientists owing to the rarity of their natural origin and their significant biological activities. Herein, we provide a review highlighting some of the interesting bisditerpenoids reported since 1961 and showcase the chemical diversity in both their structures and biosynthesis, as well as their biological functions. This review focuses on the biosynthetic dimerization pathways of interesting molecules and their biomimetic synthesis, which may act as useful inspiration for the discovery and synthesis of more bisditerpenoids and further pharmacological investigations.
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Affiliation(s)
- Yibo Chang
- College of Integrative Medicine, College of Pharmacy, Dalian Medical University, Dalian 116044, China. .,Second Affiliated Hospital, Dalian Medical University, Dalian 116023, China.
| | - Chengpeng Sun
- College of Integrative Medicine, College of Pharmacy, Dalian Medical University, Dalian 116044, China.
| | - Chao Wang
- College of Integrative Medicine, College of Pharmacy, Dalian Medical University, Dalian 116044, China.
| | - Xiaokui Huo
- Second Affiliated Hospital, Dalian Medical University, Dalian 116023, China.
| | - Wenyu Zhao
- College of Integrative Medicine, College of Pharmacy, Dalian Medical University, Dalian 116044, China.
| | - Xiaochi Ma
- College of Integrative Medicine, College of Pharmacy, Dalian Medical University, Dalian 116044, China. .,Second Affiliated Hospital, Dalian Medical University, Dalian 116023, China.
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43
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Baglyas M, Ott PG, Garádi Z, Glavnik V, Béni S, Vovk I, Móricz ÁM. High-performance thin-layer chromatography - antibacterial assay first reveals bioactive clerodane diterpenes in giant goldenrod (Solidago gigantea Ait.). J Chromatogr A 2022; 1677:463308. [PMID: 35858490 DOI: 10.1016/j.chroma.2022.463308] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Revised: 07/04/2022] [Accepted: 07/05/2022] [Indexed: 11/27/2022]
Abstract
The present work introduces a high-performance thin-layer chromatography (HPTLC)-direct bioautography method using the Gram-positive plant pathogenic bacterium, Rhodococcus fascians. The screening and isolation procedure comprised of a non-targeted high-performance thin-layer chromatography-effect-directed analysis (HPTLC-EDA) against Bacillus subtilis, B. subtilis subsp. spizizenii, R. fascians, and Aliivibrio fischeri, a targeted HPTLC-mass spectrometry (MS), and bioassay-guided column chromatographic (preparative flash and semi-preparative HPLC) fractionation and purification. The developed new separation methods enabled the discovery of four bioactive cis-clerodane diterpenes, solidagoic acid H (1), solidagoic acid E (2), solidagoic acid I (3), and solidagoic acid F (4), in the n-hexane extract of giant goldenrod (Solidago gigantea Ait.) leaf for the first time. These compounds were identified by 1D and 2D nuclear magnetic resonance (NMR) spectroscopy. The initially used HPTLC method (chloroform - ethyl acetate - methanol 15:3:2, V/V/V) was changed (to n-hexane - isopropyl acetate - methanol - acetic acid 29:20:1:1, V/V/V/V) to achieve the separation of the closely related isomer pairs (1-2 and 3-4). Compounds 1 and 3 exhibited moderate antibacterial activity against the Gram-positive B. subtilis subsp. spizizenii and R. fascians bacterial strains in microdilution assays with half-maximal inhibitory concentration (IC50) values in the range of 32.3-64.4 µg/mL. The mass spectrometric fragmentation of the isolated compounds was interpreted and their previously published NMR assignments lacking certain resonances were completed.
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Affiliation(s)
- Márton Baglyas
- Centre for Agricultural Research, ELKH, Plant Protection Institute, Herman O. Str. 15, Budapest 1022, Hungary
| | - Péter G Ott
- Centre for Agricultural Research, ELKH, Plant Protection Institute, Herman O. Str. 15, Budapest 1022, Hungary
| | - Zsófia Garádi
- Department of Pharmacognosy, Faculty of Pharmaceutical Sciences, Semmelweis University, Üllői Str. 26, Budapest 1085, Hungary
| | - Vesna Glavnik
- Laboratory for Food Chemistry, National Institute of Chemistry, Hajdrihova 19, Ljubljana SI-1000, Slovenia
| | - Szabolcs Béni
- Department of Pharmacognosy, Faculty of Pharmaceutical Sciences, Semmelweis University, Üllői Str. 26, Budapest 1085, Hungary
| | - Irena Vovk
- Laboratory for Food Chemistry, National Institute of Chemistry, Hajdrihova 19, Ljubljana SI-1000, Slovenia
| | - Ágnes M Móricz
- Centre for Agricultural Research, ELKH, Plant Protection Institute, Herman O. Str. 15, Budapest 1022, Hungary.
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44
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Acquaviva R, Malfa GA, Loizzo MR, Xiao J, Bianchi S, Tundis R. Advances on Natural Abietane, Labdane and Clerodane Diterpenes as Anti-Cancer Agents: Sources and Mechanisms of Action. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27154791. [PMID: 35897965 PMCID: PMC9330018 DOI: 10.3390/molecules27154791] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 07/18/2022] [Accepted: 07/25/2022] [Indexed: 01/14/2023]
Abstract
Extensive research over the past decades has identified numerous phytochemicals that could represent an important source of anti-cancer compounds. There is an immediate need for less toxic and more effective preventive and therapeutic strategies for the treatment of cancer. Natural compounds are considered suitable candidates for the development of new anti-cancer drugs due to their pleiotropic actions on target events with multiple manners. This comprehensive review highlighted the most relevant findings achieved in the screening of phytochemicals for anticancer drug development, particularly focused on a promising class of phytochemicals such as diterpenes with abietane, clerodane, and labdane skeleton. The chemical structure of these compounds, their main natural sources, and mechanisms of action were critically discussed.
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Affiliation(s)
- Rosaria Acquaviva
- Department of Drug and Health Sciences, University of Catania, Viale A. Doria, 95125 Catania, Italy; (R.A.); (S.B.)
- CERNUT, Research Centre on Nutraceuticals and Health Products, Department of Drug and Health Sciences, University of Catania, Viale A. Doria, 95125 Catania, Italy
| | - Giuseppe A. Malfa
- Department of Drug and Health Sciences, University of Catania, Viale A. Doria, 95125 Catania, Italy; (R.A.); (S.B.)
- CERNUT, Research Centre on Nutraceuticals and Health Products, Department of Drug and Health Sciences, University of Catania, Viale A. Doria, 95125 Catania, Italy
- Correspondence:
| | - Monica R. Loizzo
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende, Italy; (M.R.L.); (R.T.)
| | - Jianbo Xiao
- Nutrition and Bromatology Group, Department of Analytical and Food Chemistry, Faculty of Sciences, Universidade de Vigo, 32004 Ourense, Spain;
| | - Simone Bianchi
- Department of Drug and Health Sciences, University of Catania, Viale A. Doria, 95125 Catania, Italy; (R.A.); (S.B.)
| | - Rosa Tundis
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende, Italy; (M.R.L.); (R.T.)
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45
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Li FR, Lin X, Yang Q, Tan NH, Dong LB. Efficient production of clerodane and ent-kaurane diterpenes through truncated artificial pathways in Escherichia coli. Beilstein J Org Chem 2022; 18:881-888. [PMID: 35957755 PMCID: PMC9344551 DOI: 10.3762/bjoc.18.89] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 07/15/2022] [Indexed: 11/23/2022] Open
Abstract
The clerodane and ent-kaurane diterpenoids are two typical categories of diterpenoid natural products with complicated polycyclic carbon skeletons and significant pharmacological activities. Despite exciting advances in organic chemistry, access to these skeletons is still highly challenging. Using synthetic biology to engineer microbes provides an innovative alternative to bypass synthetic challenges. In this study, we constructed two truncated artificial pathways to efficiently produce terpentetriene and ent-kaurene, two representative clerodane and ent-kaurane diterpenes, in Escherichia coli. Both pathways depend on the exogenous addition of isoprenoid alcohol to reinforce the supply of IPP and DMAPP via two sequential phosphorylation reactions. Optimization of these constructs provided terpentetriene and ent-kaurene titers of 66 ± 4 mg/L and 113 ± 7 mg/L, respectively, in shake-flask fermentation. The truncated pathways to overproduce clerodane and ent-kaurane skeletons outlined here may provide an attractive route to prepare other privileged diterpene scaffolds.
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Affiliation(s)
- Fang-Ru Li
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, Jiangsu, China
| | - Xiaoxu Lin
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, Jiangsu, China
| | - Qian Yang
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, Jiangsu, China
| | - Ning-Hua Tan
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, Jiangsu, China
| | - Liao-Bin Dong
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, Jiangsu, China
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46
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Yalçin-Özkat G. Computational studies with flavonoids and terpenoids as BRPF1 inhibitors: in silico biological activity prediction, molecular docking, molecular dynamics simulations, MM/PBSA calculations. SAR AND QSAR IN ENVIRONMENTAL RESEARCH 2022; 33:533-550. [PMID: 35822928 DOI: 10.1080/1062936x.2022.2096113] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Accepted: 06/26/2022] [Indexed: 06/15/2023]
Abstract
The BRPF1 protein is encoded by the BRPF1 gene. In addition, the BRPF1 gene is known to be upregulated in leukaemia. Recent studies have shown that it is also overexpressed in hepatocellular carcinoma (HCC) as well. Therefore, BRPF1 is a significant target for anti-cancer drug development studies, especially on HCC. 40 terpenoids and flavonoids were chosen because of their anticancer properties given in the literature. In this study, the biological activity of molecules was also investigated with in silico structure-activity relationship analysis. In addition, interactions between a series of terpenoids and flavonoids and the BRPF1 protein were investigated by molecular docking and molecular dynamics simulations. The energy change caused by the interactions of BRPF1 with different compounds was also evaluated by MM/PBSA calculations. It has been revealed that compound 5 (-9.2 kcal/mol), a kind of secoclerodane type diterpenoid, has a higher affinity both compared to other flavonoids and terpenoids, and 9F9 (-7.9 kcal/mol), a selective BRPF1 inhibitor. The study presented in this article demonstrates that compound 5, as a natural product, could form a chemical scaffold for the development of selective BRPF1 bromodomain inhibitors.
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Affiliation(s)
- G Yalçin-Özkat
- Max Planck Institute for Dynamics of Complex Technical Systems, Molecular Simulations and Design Group, Magdeburg, Germany
- Bioengineering Department, Faculty of Engineering and Architecture, Recep Tayyip Erdogan University, Rize, Turkey
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47
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Krol A, Kokotkiewicz A, Luczkiewicz M. White Sage (Salvia apiana)-a Ritual and Medicinal Plant of the Chaparral: Plant Characteristics in Comparison with Other Salvia Species. PLANTA MEDICA 2022; 88:604-627. [PMID: 33890254 DOI: 10.1055/a-1453-0964] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Salvia apiana, commonly known as white sage, is an aromatic evergreen subshrub of the chaparral, commonly found in coastal plains in California and Baja California. It has been traditionally used by the Chumash people as a ritual and medicinal plant and used as a calmative, a diuretic, and a remedy for the common cold. However, until recently, relatively little has been known about the composition and biological activity of white sage. Phytochemical studies on S. apiana revealed the presence of substantial amounts of essential oil, accompanied by a variety of triterpenes, C23 terpenoids, diterpenes, and flavonoids. Extracts of the plant have been shown to exhibit antioxidative, antimicrobial, and cytotoxic effects. The influence of white sage constituents on the nervous system, including GABA, opioid, and cannabinoid receptors, has also been documented. The review aimed to compile information on the taxonomy, botany, chemical composition, and biological activities of S. apiana. White sage was compared with other representatives of the genus in terms of chemical composition. The differences and similarities between S. apiana and other sage species were noted and discussed in the context of their therapeutic applications. Reports on ethnomedicinal uses of white sage were confronted with reports on chemistry, bioactivity, and bioavailability of S. apiana constituents. Finally, a critical assessment of the available data was made and perspectives for the use of white sage preparations in modern phytomedicine were discussed.
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Affiliation(s)
- Agata Krol
- Department of Pharmacognosy, Faculty of Pharmacy, Medical University of Gdańsk, Gdańsk, Poland
| | - Adam Kokotkiewicz
- Department of Pharmacognosy, Faculty of Pharmacy, Medical University of Gdańsk, Gdańsk, Poland
| | - Maria Luczkiewicz
- Department of Pharmacognosy, Faculty of Pharmacy, Medical University of Gdańsk, Gdańsk, Poland
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48
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Syafni N, Faleschini MT, Garifulina A, Danton O, Gupta MP, Hering S, Hamburger M. Clerodane Diterpenes from Casearia corymbosa as Allosteric GABA A Receptor Modulators. JOURNAL OF NATURAL PRODUCTS 2022; 85:1201-1210. [PMID: 35475609 PMCID: PMC9150179 DOI: 10.1021/acs.jnatprod.1c00840] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Indexed: 06/14/2023]
Abstract
An EtOAc extract of Casearia corymbosa leaves led to an allosteric potentiation of the GABA signal in a fluorometric imaging plate reader (FLIPR) assay on Chinese hamster ovary (CHO) cells stably expressing GABAA receptors with an α1β2γ2 subunit composition. The activity was tracked by HPLC-based activity profiling, and four known (2, 3, 4, and 8) and five new clerodane-type diterpenoids (1, 5-7, and 9) were isolated. Compounds 1-8 were obtained from the active time window. The absolute configuration of all compounds was established by ECD. Compounds 3, 7, and 8 exhibited EC50 values of 0.5, 4.6, and 1.4 μM, respectively. To explore possible binding sites at the receptor, the most abundant diterpenoid 8 was tested in combination with diazepam, etazolate, and allopregnanolone. An additive potentiation of the GABA signal was observed with these compounds, while the effect of 8 was not inhibited by flumazenil, a negative allosteric modulator at the benzodiazepine binding site. Finally, the activity was validated in voltage clamp studies on Xenopus laevis oocytes transiently expressing GABAA receptors of the α1β2γ2S and α1β2 subtypes. Compound 8 potentiated GABA-induced currents with both receptor subunit compositions [EC50 (α1β2γ2S) = 43.6 μM; Emax = 809% and EC50 (α1β2) = 57.6 μM; Emax = 534%]. The positive modulation of GABA-induced currents was not inhibited by flumazenil, thereby confirming an allosteric modulation independent of the benzodiazepine binding site.
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Affiliation(s)
- Nova Syafni
- Pharmaceutical
Biology, Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland
- Faculty
of Pharmacy and Sumatran Biota Laboratory, Andalas University, Kampus Limau Manis, Padang, West Sumatra 25175, Indonesia
| | - Maria Teresa Faleschini
- Pharmaceutical
Biology, Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland
| | - Aleksandra Garifulina
- Division
of Pharmacology and Toxicology, Department of Pharmaceutical Sciences, University of Vienna, Pharmaziezentrum, Althanstrasse 14, 1090 Vienna, Austria
| | - Ombeline Danton
- Pharmaceutical
Biology, Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland
| | - Mahabir P. Gupta
- Center
for Pharmacognostic Research on Panamanian Flora, Faculty of Pharmacy, University of Panama, Panama City 0801, Panama
| | - Steffen Hering
- Division
of Pharmacology and Toxicology, Department of Pharmaceutical Sciences, University of Vienna, Pharmaziezentrum, Althanstrasse 14, 1090 Vienna, Austria
| | - Matthias Hamburger
- Pharmaceutical
Biology, Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland
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49
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Zhang JS, Xu DF, Wang YY, Ma RF, Zhang H. Clerodane furanoditerpenoids from the stems of Tinospora sinensis. Arch Pharm Res 2022; 45:328-339. [PMID: 35478401 DOI: 10.1007/s12272-022-01383-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 04/21/2022] [Indexed: 11/02/2022]
Abstract
One new clerodane-type furanoditerpenoid tinosinoid A (1) and nine new nor-clerodane analogs tinosinoids B-J (2-10) have been isolated from the stems of Tinospora sinensis. The structures of the new compounds with absolute configurations have been elucidated by spectroscopic means, including MS, NMR and ECD techniques, as well as chemical correlation. Compound 1 is a rare sulfur-containing clerodane diterpenoid incorporating a 2-mercaptoethanol unit via a thioether bond, while compounds 4/5 and 9 represent two pairs of unusual equilibrium regioisomers through an interesting intramolecular transesterification. Our bioassays established that 1 and 8 displayed moderate antiproliferative effects against two human tumor cell lines, and 9 and 10 showed significant α-glucosidase inhibitory activities. A kinetics study revealed that compound 10 was a noncompetitive α-glucosidase inhibitor, and its possible binding mode to the enzyme was further probed by molecular docking experiments.
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Affiliation(s)
- Jun-Sheng Zhang
- School of Biological Science and Technology, University of Jinan, Jinan, 250022, China
| | - De-Feng Xu
- School of Biological Science and Technology, University of Jinan, Jinan, 250022, China
| | - Yin-Yin Wang
- School of Biological Science and Technology, University of Jinan, Jinan, 250022, China
| | - Ren-Fen Ma
- School of Biological Science and Technology, University of Jinan, Jinan, 250022, China
| | - Hua Zhang
- School of Biological Science and Technology, University of Jinan, Jinan, 250022, China.
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50
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Ortiz-Mendoza N, Aguirre-Hernández E, Fragoso-Martínez I, González-Trujano ME, Basurto-Peña FA, Martínez-Gordillo MJ. A Review on the Ethnopharmacology and Phytochemistry of the Neotropical Sages ( Salvia Subgenus Calosphace; Lamiaceae) Emphasizing Mexican Species. Front Pharmacol 2022; 13:867892. [PMID: 35517814 PMCID: PMC9061990 DOI: 10.3389/fphar.2022.867892] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Accepted: 03/28/2022] [Indexed: 11/13/2022] Open
Abstract
Salvia is the most diverse genus within the mint family (Lamiaceae), many of its species are well-known due to their medicinal and culinary uses. Most of the ethnopharmacological and phytochemical studies on Salvia are centred on species from the European and Asian clades. However, studies about the most diverse clade, the Neotropical sages (Salvia subgenus Calosphace; 587 spp.), are relatively scarce. This review aims to compile the information on the traditional medicinal uses, pharmacological and phytochemistry properties of the Neotropical sages. To do so, we carried out a comprehensive review of the articles available in different online databases published from the past to 2022 (i.e., PubMed, Scopus, and Web of Science, among others) and summarized the information in tables. To uncover phylogenetic patterns in the distribution of four different groups of metabolites (mono-, sesqui-, di-, and triterpenes), we generated presence-absence matrices and plotted the tip states over a dated phylogeny of Salvia. We found several studies involving Mexican species of Salvia, but only a few about taxa from other diversity centres. The main traditional uses of the Mexican species of Calosphace are medicinal and ceremonial. In traditional medicine 56 species are used to treat diseases from 17 categories according to the WHO, plus cultural-bound syndromes. Pharmacological studies reveal a wide range of biological properties (e.g., antinociceptive, anti-inflammatory, anxiolytic, cytotoxic, and antidiabetic, etc.) found in extracts and isolated compounds of 38 Neotropical sages. From extracts of these species, at least 109 compounds have been isolated, identified and evaluated pharmacologically; 73 of these compounds are clerodanes, 21 abietanes, six flavonoids, five sesquiterpenoids, and four triterpenoids. The most characteristic metabolites found in the Neotropical sages are the diterpenes, particularly clerodanes (e.g., Amarisolide A, Tilifodiolide), that are found almost exclusively in this group. The Neotropical sages are a promising resource in the production of herbal medication, but studies that corroborate the properties that have been attributed to them in traditional medicine are scarce. Research of these metabolites guided by the phylogenies is recommended, since closely related species tend to share the presence of similar compounds and thus similar medicinal properties.
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Affiliation(s)
- Nancy Ortiz-Mendoza
- Laboratorio de Productos Naturales, Departamento de Ecología y Recursos Naturales, Facultad de Ciencias, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Eva Aguirre-Hernández
- Laboratorio de Productos Naturales, Departamento de Ecología y Recursos Naturales, Facultad de Ciencias, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | | | - María Eva González-Trujano
- Laboratorio de Neurofarmacología de Productos Naturales, Dirección de Investigaciones en Neurociencias del Instituto Nacional de Psiquiatría Ramón de la Fuente Muñiz, Mexico City, Mexico
| | - Francisco A. Basurto-Peña
- Jardin Botánico, Instituto de Biología, Universidad Nacional Autónoma de México, Ciudad Universitaria, Mexico City, Mexico
| | - Martha J. Martínez-Gordillo
- Departamento de Biología Comparada, Herbario de la Facultad de Ciencias, Facultad de Ciencias, Universidad Nacional Autónoma de México, Mexico City, Mexico
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