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Huang X, Huang X, Li Q, Ma M, Cui Y, Yang L, Wang H, Luo R, Chen J, Yang J, Lin J, Li D, Zheng Y, Zhang J. Seco-cyclic phorbol derivatives and their anti-HIV-1 activities. Chin J Nat Med 2024; 22:365-374. [PMID: 38658099 DOI: 10.1016/s1875-5364(24)60630-8] [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: 10/13/2023] [Indexed: 04/26/2024]
Abstract
Phorbol esters are recognized for their dual role as anti-HIV-1 agents and as activators of protein kinase C (PKC). The efficacy of phorbol esters in binding with PKC is attributed to the presence of oxygen groups at positions C20, C3/C4, and C9 of phorbol. Concurrently, the lipids located at positions C12/C13 are essential for both the anti-HIV-1 activity and the formation of the PKC-ligand complex. The influence of the cyclopropane ring at positions C13 and C14 in phorbol derivatives on their anti-HIV-1 activity requires further exploration. This research entailed the hydrolysis of phorbol, producing seco-cyclic phorbol derivatives. The anti-HIV-1 efficacy of these derivatives was assessed, and the affinity constant (Kd) for PKC-δ protein of selected seco-cyclic phorbol derivatives was determined through isothermal titration calorimetry. The findings suggest that the chemical modification of cyclopropanols could affect both the anti-HIV-1 activity and the PKC binding affinity. Remarkably, compound S11, with an EC50 of 0.27 μmol·L-1 and a CC50 of 153.92 μmol·L-1, demonstrated a potent inhibitory effect on the intermediate products of HIV-1 reverse transcription (ssDNA and 2LTR), likely acting at the viral entry stage, yet showed no affinity for the PKC-δ protein. These results position compound S11 as a potential candidate for further preclinical investigation and for studies aimed at elucidating the pharmacological mechanism underlying its anti-HIV-1 activity.
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Affiliation(s)
- Xiaolei Huang
- College of Pharmaceutical Science, Soochow University, Suzhou 215123, China
| | - Xusheng Huang
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China; Kunming College of Life Science, University of Chinese Academy of Sciences, Kunming 650204, China
| | - Qirun Li
- College of Pharmaceutical Science, Soochow University, Suzhou 215123, China
| | - Mengdi Ma
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China
| | - Yadong Cui
- College of Pharmaceutical Science, Soochow University, Suzhou 215123, China
| | - Liumeng Yang
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China
| | - Haibo Wang
- College of Pharmaceutical Science, Soochow University, Suzhou 215123, China
| | - Ronghua Luo
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China
| | - Jinglei Chen
- College of Pharmaceutical Science, Soochow University, Suzhou 215123, China
| | - Jingxuan Yang
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China; College of Traditional Chinese Medicine, Yunnan University of Chinese Medicine, Kunming 650500, China
| | - Jinrong Lin
- College of Pharmaceutical Science, Soochow University, Suzhou 215123, China
| | - Duxin Li
- College of Pharmaceutical Science, Soochow University, Suzhou 215123, China.
| | - Yongtang Zheng
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China; Kunming College of Life Science, University of Chinese Academy of Sciences, Kunming 650204, China.
| | - Jian Zhang
- College of Pharmaceutical Science, Soochow University, Suzhou 215123, China.
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Huang X, Tang C, Huang X, Yang Y, Li Q, Ma M, Zhao L, Yang L, Cui Y, Zhang Z, Zheng Y, Zhang J. Synthesis and anti-HIV activities of phorbol derivatives. Chin J Nat Med 2024; 22:146-160. [PMID: 38342567 DOI: 10.1016/s1875-5364(24)60587-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Indexed: 02/13/2024]
Abstract
In this study, 37 derivatives of phorbol esters were synthesized and their anti-HIV-1 activities evaluated, building upon our previous synthesis of 51 phorbol derivatives. 12-Para-electron-acceptor-trans-cinnamoyl-13-decanoyl phorbol derivatives stood out, demonstrating remarkable anti-HIV-1 activities and inhibitory effects on syncytia formation. These derivatives exhibited a higher safety index compared with the positive control drug. Among them, 12-(trans-4-fluorocinnamoyl)-13-decanoyl phorbol, designated as compound 3c, exhibited the most potent anti-HIV-1 activity (EC50 2.9 nmol·L-1, CC50/EC50 11 117.24) and significantly inhibited the formation of syncytium (EC50 7.0 nmol·L-1, CC50/EC50 4891.43). Moreover, compound 3c is hypothesized to act both as an HIV-1 entry inhibitor and as an HIV-1 reverse transcriptase inhibitor. Isothermal titration calorimetry and molecular docking studies indicated that compound 3c may also function as a natural activator of protein kinase C (PKC). Therefore, compound 3c emerges as a potential candidate for developing new anti-HIV drugs.
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Affiliation(s)
- Xiaolei Huang
- College of Pharmaceutical Science, Soochow University, Suzhou 215123, China
| | - Chengrun Tang
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China
| | - Xusheng Huang
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China; Kunming College of Life Science, University of Chinese Academy of Sciences, Kunming, Yunnan 650204, China
| | - Yun Yang
- College of Pharmaceutical Science, Soochow University, Suzhou 215123, China
| | - Qirun Li
- College of Pharmaceutical Science, Soochow University, Suzhou 215123, China
| | - Mengdi Ma
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China
| | - Lei Zhao
- College of Pharmaceutical Science, Soochow University, Suzhou 215123, China
| | - Liumeng Yang
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China
| | - Yadong Cui
- College of Pharmaceutical Science, Soochow University, Suzhou 215123, China
| | - Zhenqing Zhang
- College of Pharmaceutical Science, Soochow University, Suzhou 215123, China.
| | - Yongtang Zheng
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China; Kunming College of Life Science, University of Chinese Academy of Sciences, Kunming, Yunnan 650204, China.
| | - Jian Zhang
- College of Pharmaceutical Science, Soochow University, Suzhou 215123, China.
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Li L, Zhao B, Zheng X, Liu Z, Zou H, Qin L, Zhou X. Diterpenoids with Schistosomula-Killing and Anti-Fibrosis Activities In Vitro from the Leaves of Croton tiglium. Molecules 2024; 29:401. [PMID: 38257314 PMCID: PMC10818740 DOI: 10.3390/molecules29020401] [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: 11/26/2023] [Revised: 12/30/2023] [Accepted: 01/10/2024] [Indexed: 01/24/2024] Open
Abstract
The leaves of C. tiglium have been comprehensively researched for their structurally novel bioactive natural compounds, especially those with anti-schistosomiasis liver fibrosis activity, because ethyl acetate extract, which can be extracted from the leaves of C. tiglium, has good anti-schistosomiasis liver fibrosis effects. One new tigliane-type diterpene, 20-acetyl-13-O-(2-metyl)butyryl-phorbol (1), and nine known (2-10) analogues were isolated from the leaves of C. tiglium. Their structures were elucidated on the basis of spectroscopic analysis and ECD analysis. All diterpenoids had a stronger insecticidal effect on schistosomula, and compounds 2, 4, and 10 had good anti-liver-fibrosis effects. Furthermore, compared with the model group, compound 2 significantly downregulated the protein and mRNA expression of COL-I, COL-III, α-SMA, and TGF-β1 on TGF-β1-induced liver fibrosis in LX-2 cells. Meanwhile, compound 2 also regulated the expression of TGF-β/Smad-pathway-related proteins. The results suggest that diterpenoids from C. tiglium may serve as potential schistosomula-killing and anti-liver-fibrosis agents in the future.
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Affiliation(s)
- Li Li
- College of Pharmacy, Hunan University of Chinese Medicine, Changsha 410208, China; (L.L.); (B.Z.); (X.Z.)
| | - Biqing Zhao
- College of Pharmacy, Hunan University of Chinese Medicine, Changsha 410208, China; (L.L.); (B.Z.); (X.Z.)
| | - Xiaoxiao Zheng
- College of Pharmacy, Hunan University of Chinese Medicine, Changsha 410208, China; (L.L.); (B.Z.); (X.Z.)
| | - Zhaohui Liu
- Hengxiu Tang Pharmaceutical Co., Ltd., Changsha 410219, China; (Z.L.); (H.Z.)
| | - Huan Zou
- Hengxiu Tang Pharmaceutical Co., Ltd., Changsha 410219, China; (Z.L.); (H.Z.)
| | - Li Qin
- College of Pharmacy, Hunan University of Chinese Medicine, Changsha 410208, China; (L.L.); (B.Z.); (X.Z.)
| | - Xiaojiang Zhou
- College of Pharmacy, Hunan University of Chinese Medicine, Changsha 410208, China; (L.L.); (B.Z.); (X.Z.)
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Yang Y, Huang YP, Zeng GJ, Li WL, Shi TX, Zhao Y. A New Stigmasterol from Croton tiglium. Chem Nat Compd 2023. [DOI: 10.1007/s10600-023-03926-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
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Zhang T, Liu Z, Sun X, Liu Z, Zhang L, Zhang Q, Peng W, Wu C. Botany, traditional uses, phytochemistry, pharmacological and toxicological effects of Croton tiglium Linn.: a comprehensive review. J Pharm Pharmacol 2022; 74:1061-1084. [PMID: 35723937 DOI: 10.1093/jpp/rgac040] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Accepted: 05/17/2022] [Indexed: 12/11/2022]
Abstract
OBJECTIVES Croton tiglium Linn. (Euphorbiaceae) is an ancient medicinal plant that has been used for a long time, which is widely distributed in tropical and subtropical regions. And it is widely used for defecation, induced labour, treatment of gastrointestinal diseases, headache, as well as rheumatoid arthritis. KEY FINDINGS Approximately 150 compounds have been isolated and identified from the seeds, stems, leaves and branches of C. tiglium, including fatty acids, terpenoids, alkaloids, the plants proteins and other types of components. Based on a wide range of biological properties, C. tiglium has a wide range of pharmacological effects, such as antitumor, anti-HIV, analgesic, anti-inflammatory and antibacterial effects. SUMMARY The review aims to provide a critical and comprehensive evaluation of the botany, phytochemistry, pharmacology and toxicity of C. tiglium, with a vision for promoting further pharmaceutical research to explore its complete potential for better clinical application. The tigliane diterpenoids have been the most studied compounds isolated from C. tiglium, which showing a variety of biological activities, but there is insufficient evidence to explain the mechanism of action. In addition, C. tiglium may have potential toxic effects, and it is necessary to reduce the toxic effects to ensure the safety of clinical medication, which may promote the discovery and development of new drugs.
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Affiliation(s)
- Ting Zhang
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, P.R. China
| | - Zibo Liu
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, P.R. China
| | - Xue Sun
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, P.R. China
| | - Ziqi Liu
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, P.R. China
| | - Lilin Zhang
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, P.R. China
| | - Qing Zhang
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, P.R. China
| | - Wei Peng
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, P.R. China
| | - Chunjie Wu
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, P.R. China
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Jiang ZY, Feng JE, Duan LK, Liu CJ, Li XF, Huang CQ, Shi SL, Wang RR, Zuo AX, He HP. Tigliane Diterpenoids with Larvicidal, Antifungal, and α-Glucosidase Inhibitory Activities from Croton damayeshu. JOURNAL OF NATURAL PRODUCTS 2022; 85:405-414. [PMID: 35080403 DOI: 10.1021/acs.jnatprod.1c00977] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Thirty-five tigliane diterpenoids and two ent-kaurane diterpenoids were isolated from the leaves of Croton damayeshu, and, among them, compounds 1-10 were characterized as new tigliane diterpenoids. The structures of compounds 1-10 were determined by analysis of their HRESIMS, NMR, and ECD data and by chemical methods. The isolates were assayed for their larvicidal, antifungal, and α-glucosidase inhibitory activities, and compounds 8-10 were found to possess larvicidal activities against Plutella xylostella with LC50 values of 0.19, 0.16, and 0.26 μM, respectively, comparable to the LC50 of 0.14 μM for the positive control, flubendiamide.
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Affiliation(s)
- Zhi-Yong Jiang
- School of Ethnic Medicine, Yunnan University of Chinese Medicine, Kunming 650500, Yunnan, People's Republic of China
- Key Laboratory of Modern Research on Ethnic Medicine in Colleges of Yunnan Province, Kunming 650500, Yunnan, People's Republic of China
| | - Jin-E Feng
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education, Yunnan Minzu University, Kunming 650500, Yunnan, People's Republic of China
| | - Li-Kun Duan
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education, Yunnan Minzu University, Kunming 650500, Yunnan, People's Republic of China
| | - Chun-Jiang Liu
- School of Ethnic Medicine, Yunnan University of Chinese Medicine, Kunming 650500, Yunnan, People's Republic of China
| | - Xiao-Fei Li
- School of Ethnic Medicine, Yunnan University of Chinese Medicine, Kunming 650500, Yunnan, People's Republic of China
| | - Chun-Qiu Huang
- Yunnan Phytopharmaceutical Co. Ltd., Kunming 650505, Yunnan, People's Republic of China
| | - Sheng-Li Shi
- College of Chemical Biology & Enviromeny, Yuxi Normal University, Yuxi 653100, Yunnan, People's Republic of China
| | - Rui-Rui Wang
- School of Ethnic Medicine, Yunnan University of Chinese Medicine, Kunming 650500, Yunnan, People's Republic of China
| | - Ai-Xue Zuo
- School of Ethnic Medicine, Yunnan University of Chinese Medicine, Kunming 650500, Yunnan, People's Republic of China
| | - Hong-Ping He
- School of Ethnic Medicine, Yunnan University of Chinese Medicine, Kunming 650500, Yunnan, People's Republic of China
- Key Laboratory of Modern Research on Ethnic Medicine in Colleges of Yunnan Province, Kunming 650500, Yunnan, People's Republic of China
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Qi JJ, Zhou JS, Zhang Y, Fan YY, Zhou B, Liu HC, Zhao JX, Yue JM. Sublyratins A-O, Labdane-Type Diterpenoids from Croton sublyratus. JOURNAL OF NATURAL PRODUCTS 2021; 84:2971-2980. [PMID: 34762434 DOI: 10.1021/acs.jnatprod.1c00804] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Fifteen new labdane-type diterpenoids, sublyratins A-O (1-15), along with four known analogues (16-19) were isolated from the aerial parts of Croton sublyratus. Their structural assignments were challenging due to the stereoisomeric features evident and were achieved by analyzing comprehensively the spectroscopic data and electronic circular dichroism spectra and using X-ray crystallographic analysis. Compounds 9 and 16-18 displayed cytotoxic activity against the HL-60 cell line with IC50 values of 1.5-2.8 μM.
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Affiliation(s)
- Jing-Jing Qi
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, People's Republic of China
- School of Chinese Materia Medica, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing 210023, People's Republic of China
| | - Jun-Su Zhou
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, People's Republic of China
| | - Yan Zhang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, People's Republic of China
| | - Yao-Yue Fan
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, People's Republic of China
| | - Bin Zhou
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, People's Republic of China
| | - Hong-Chun Liu
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, People's Republic of China
| | - Jin-Xin Zhao
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, People's Republic of China
| | - Jian-Min Yue
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, People's Republic of China
- School of Chinese Materia Medica, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing 210023, People's Republic of China
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Tsai YC, Nell RA, Buckendorf JE, Kúsz N, Mwangi PW, Berkecz R, Rédei D, Vasas A, Spivak AM, Hohmann J. Bioactive Compounds from Euphorbia usambarica Pax. with HIV-1 Latency Reversal Activity. Pharmaceuticals (Basel) 2021; 14:ph14070653. [PMID: 34358079 PMCID: PMC8308672 DOI: 10.3390/ph14070653] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 06/27/2021] [Accepted: 06/30/2021] [Indexed: 01/04/2023] Open
Abstract
Euphorbia usambarica is a traditional medicine used for gynecologic, endocrine, and urogenital illnesses in East Africa; however, its constituents and bioactivities have not been investigated. A variety of compounds isolated from Euphorbia species have been shown to have activity against latent HIV-1, the major source of HIV-1 persistence despite antiretroviral therapy. We performed bioactivity-guided isolation to identify 15 new diterpenoids (1–9, 14–17, 19, and 20) along with 16 known compounds from E. usambarica with HIV-1 latency reversal activity. Euphordraculoate C (1) exhibits a rare 6/6/3-fused ring system with a 2-methyl-2-cyclopentenone moiety. Usambariphanes A (2) and B (3) display an unusual lactone ring constructed between C-17 and C-2 in the jatrophane structure. 4β-Crotignoid K (14) revealed a 250-fold improvement in latency reversal activity compared to crotignoid K (13), identifying that configuration at the C-4 of tigliane diterpenoids is critical to HIV-1 latency reversal activity. The primary mechanism of the active diterpenoids 12–14 and 21 for the HIV-1 latency reversal activity was activation of PKC, while lignans 26 and 27 that did not increase CD69 expression, suggesting a non-PKC mechanism. Accordingly, natural constituents from E. usambarica have the potential to contribute to the development of HIV-1 eradication strategies.
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Affiliation(s)
- Yu-Chi Tsai
- Interdisciplinary Excellence Centre, Department of Pharmacognosy, University of Szeged, H-6720 Szeged, Hungary; (Y.-C.T.); (N.K.); (D.R.); (A.V.)
| | - Racheal A. Nell
- Department of Medicine, University of Utah School of Medicine, Salt Lake City, UT 84132, USA; (R.A.N.); (J.E.B.)
| | - Jonathan E. Buckendorf
- Department of Medicine, University of Utah School of Medicine, Salt Lake City, UT 84132, USA; (R.A.N.); (J.E.B.)
| | - Norbert Kúsz
- Interdisciplinary Excellence Centre, Department of Pharmacognosy, University of Szeged, H-6720 Szeged, Hungary; (Y.-C.T.); (N.K.); (D.R.); (A.V.)
| | - Peter Waweru Mwangi
- Department of Medical Physiology, School of Medicine, University of Nairobi, Nairobi P.O. Box 30197-00100, Kenya;
| | - Róbert Berkecz
- Department of Medical Chemistry, University of Szeged, H-6720 Szeged, Hungary;
| | - Dóra Rédei
- Interdisciplinary Excellence Centre, Department of Pharmacognosy, University of Szeged, H-6720 Szeged, Hungary; (Y.-C.T.); (N.K.); (D.R.); (A.V.)
| | - Andrea Vasas
- Interdisciplinary Excellence Centre, Department of Pharmacognosy, University of Szeged, H-6720 Szeged, Hungary; (Y.-C.T.); (N.K.); (D.R.); (A.V.)
| | - Adam M. Spivak
- Department of Medicine, University of Utah School of Medicine, Salt Lake City, UT 84132, USA; (R.A.N.); (J.E.B.)
- Correspondence: (A.M.S.); (J.H.)
| | - Judit Hohmann
- Interdisciplinary Excellence Centre, Department of Pharmacognosy, University of Szeged, H-6720 Szeged, Hungary; (Y.-C.T.); (N.K.); (D.R.); (A.V.)
- Interdisciplinary Centre of Natural Products, University of Szeged, H-6720 Szeged, Hungary
- Correspondence: (A.M.S.); (J.H.)
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9
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Lu Y, Huang YS, Chen CH, Akiyama T, Morris-Natschke SL, Cheng YY, Chen IS, Yang SZ, Chen DF, Lee KH. Anti-HIV tigliane diterpenoids from Reutealis trisperma. PHYTOCHEMISTRY 2020; 174:112360. [PMID: 32229336 PMCID: PMC7238976 DOI: 10.1016/j.phytochem.2020.112360] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Revised: 03/10/2020] [Accepted: 03/18/2020] [Indexed: 05/25/2023]
Abstract
Bioassay-guided fractionation of the n-butanol extract from the branches and leaves of Reutealis trisperma resulted in the isolation of six undescribed (crotignoids L ~ Q) together with two known (12-deoxyphorbol-13-hexadecanoate and 12-deoxyphorbol-13-myristate) tigliane diterpenoids. Their structures, especially the absolute configurations, were determined from extensive spectroscopic studies, including 2D NMR spectra, CD data analysis and electronic circular dichroism (ECD) calculations. All isolates were tested for anti-HIV activity against HL4-3 virus in MT4 cells. Except for crotignoid Q, the remaining seven tigliane diterpenoids exhibited potent anti-HIV activity with IC50 values ranging from 0.0023 to 4.03 μM.
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Affiliation(s)
- Yan Lu
- School of Pharmacy, Institutes of Integrative Medicine, Fudan University, Shanghai, 201203, People's Republic of China; Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC, 27599-7568, United States
| | - Ya-Si Huang
- School of Pharmacy, Institutes of Integrative Medicine, Fudan University, Shanghai, 201203, People's Republic of China
| | - Chin-Ho Chen
- Duke University Medical Center, Box 2926, SORF, Durham, NC, 27710, United States
| | - Toshiyuki Akiyama
- Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC, 27599-7568, United States
| | - Susan L Morris-Natschke
- Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC, 27599-7568, United States
| | - Yung-Yi Cheng
- Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC, 27599-7568, United States
| | - Ih-Sheng Chen
- School of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Sheng-Zehn Yang
- Department of Forestry, National Pingtung University of Science and Technology, Pingtung, Taiwan
| | - Dao-Feng Chen
- School of Pharmacy, Institutes of Integrative Medicine, Fudan University, Shanghai, 201203, People's Republic of China.
| | - Kuo-Hsiung Lee
- Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC, 27599-7568, United States; Chinese Medicine Research and Development Center, China Medical University and Hospital, Taichung, Taiwan.
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10
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Fan YY, Shi SQ, Deng GZ, Liu HC, Xu CH, Ding J, Wang GW, Yue JM. Crokonoids A-C, A Highly Rearranged and Dual-Bridged Spiro Diterpenoid and Two Other Diterpenoids from Croton kongensis. Org Lett 2020; 22:929-933. [PMID: 31916776 DOI: 10.1021/acs.orglett.9b04484] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Crokonoid A (1), a highly rearranged diterpenoid featuring a dual-bridged tricyclo[4.4.1.11,4]dodecane-2,11-dione ring system and its two possible ent-kaurene diterpenoid precursors (2 and 3), was isolated and structurally characterized by solid data from Croton kongensis. Compound 1 exhibited significant cytotoxicity against HL-60 and A-549 cell lines with IC50 values of 1.24 ± 0.56 and 1.92 ± 0.60 μM, respectively.
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Affiliation(s)
- Yao-Yue Fan
- State Key Laboratory of Drug Research , Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zuchongzhi Road , Shanghai 201203 , People's Republic of China
| | - Shu-Qin Shi
- Nano Science and Technology Institute , University of Science and Technology of China , Suzhou , Jiangsu 215123 , People's Republic of China
| | - Guo-Zhen Deng
- State Key Laboratory of Drug Research , Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zuchongzhi Road , Shanghai 201203 , People's Republic of China.,University of Chinese Academy of Sciences , No.19A Yuquan Road , Beijing 100049 , People's Republic of China
| | - Hong-Chun Liu
- State Key Laboratory of Drug Research , Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zuchongzhi Road , Shanghai 201203 , People's Republic of China
| | - Cheng-Hui Xu
- State Key Laboratory of Drug Research , Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zuchongzhi Road , Shanghai 201203 , People's Republic of China
| | - Jian Ding
- State Key Laboratory of Drug Research , Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zuchongzhi Road , Shanghai 201203 , People's Republic of China
| | - Guan-Wu Wang
- Nano Science and Technology Institute , University of Science and Technology of China , Suzhou , Jiangsu 215123 , People's Republic of China.,Department of Chemistry , University of Science and Technology of China , Hefei , Anhui 230026 , People's Republic of China
| | - Jian-Min Yue
- State Key Laboratory of Drug Research , Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zuchongzhi Road , Shanghai 201203 , People's Republic of China
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11
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Cui JJ, Ji KL, Liu HC, Zhou B, Liu QF, Xu CH, Ding J, Zhao JX, Yue JM. Cytotoxic Tigliane Diterpenoids from Croton damayeshu. JOURNAL OF NATURAL PRODUCTS 2019; 82:1550-1557. [PMID: 31117522 DOI: 10.1021/acs.jnatprod.9b00042] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Chemical investigation of an EtOH extract of the twigs and leaves of Croton damayeshu afforded 10 new tigliane diterpenoids, crodamoids A-J (1-10), along with five known compounds. Their structures were elucidated by physical data analysis. Compounds 8, 9, and 15 displayed cytotoxic effects against two human tumor cell lines, A549 and HL-60 (IC50: 0.9-2.4 μM).
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Affiliation(s)
- Jiao-Jiao Cui
- State Key Laboratory of Drug Research , Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zuchongzhi Road , Shanghai 201203 , People's Republic of China
- University of Chinese Academy of Sciences , No. 19A Yuquan Road , Beijing 100049 , People's Republic of China
| | - Kai-Long Ji
- State Key Laboratory of Drug Research , Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zuchongzhi Road , Shanghai 201203 , People's Republic of China
| | - Hong-Chun Liu
- State Key Laboratory of Drug Research , Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zuchongzhi Road , Shanghai 201203 , People's Republic of China
| | - Bin Zhou
- State Key Laboratory of Drug Research , Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zuchongzhi Road , Shanghai 201203 , People's Republic of China
| | - Qun-Fang Liu
- State Key Laboratory of Drug Research , Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zuchongzhi Road , Shanghai 201203 , People's Republic of China
| | - Cheng-Hui Xu
- State Key Laboratory of Drug Research , Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zuchongzhi Road , Shanghai 201203 , People's Republic of China
| | - Jian Ding
- State Key Laboratory of Drug Research , Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zuchongzhi Road , Shanghai 201203 , People's Republic of China
| | - Jin-Xin Zhao
- State Key Laboratory of Drug Research , Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zuchongzhi Road , Shanghai 201203 , People's Republic of China
| | - Jian-Min Yue
- State Key Laboratory of Drug Research , Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zuchongzhi Road , Shanghai 201203 , People's Republic of China
- University of Chinese Academy of Sciences , No. 19A Yuquan Road , Beijing 100049 , People's Republic of China
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12
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Wang J, Qin L, Zhao B, Cai L, Zhong Z, Liu Y, Zhou X. Crotonols A and B, two rare tigliane diterpenoid derivatives against K562 cells from Croton tiglium. Org Biomol Chem 2019; 17:195-202. [DOI: 10.1039/c8ob02519c] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Crotonol B (2) represents the first example of 13,14-seco-tigliane diterpenoids.
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Affiliation(s)
- Junfeng Wang
- College of Pharmacy
- Hunan University of Chinese Medicine
- Changsha 410208
- People's Republic of China
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology/Guangdong Key Laboratory of Marine MateriaMedica/RNAM Center for Marine Microbiology
| | - Li Qin
- College of Pharmacy
- Hunan University of Chinese Medicine
- Changsha 410208
- People's Republic of China
| | - Biqing Zhao
- College of Pharmacy
- Hunan University of Chinese Medicine
- Changsha 410208
- People's Republic of China
| | - Liang Cai
- Hunan Provincial Center for Disease Control and Prevention
- Changsha 410005
- People's Republic of China
| | - Zhenping Zhong
- Yao Sheng Tang (Hu Nan) Pharmaceutical Co
- Ltd
- Anxiang 415600
- People's Republic of China
| | - Yonghong Liu
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology/Guangdong Key Laboratory of Marine MateriaMedica/RNAM Center for Marine Microbiology
- South China Sea Institute of Oceanology
- Chinese Academy of Sciences
- Guangzhou 510301
- People's Republic of China
| | - Xiaojiang Zhou
- College of Pharmacy
- Hunan University of Chinese Medicine
- Changsha 410208
- People's Republic of China
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13
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Shi SQ, Fan YY, Xu CH, Ding J, Wang GW, Yue JM. Cytotoxic 8,9-seco-ent-kaurane diterpenoids from Croton kongensis. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2018; 20:920-927. [PMID: 28895443 DOI: 10.1080/10286020.2017.1373100] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Accepted: 08/19/2017] [Indexed: 06/07/2023]
Abstract
Chemical study on the ethanolic extract generated from the aerial parts of Croton kongensis led to the isolation of three new 8,9-seco-ent-kaurane diterpenoids, kongeniods A‒C (1‒3), together with seven known analogs (4-10). The structures of these compounds were assigned by spectroscopic data analysis. The vitro cytotoxic tests showed that compounds 1-3 exhibited strong activities against HL-60 cell lines with IC50 values of 0.47, 0.58, and 1.27 μM, respectively.
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Affiliation(s)
- Shu-Qin Shi
- a Nano Science and Technology Institute, University of Science and Technology of China , Suzhou 215123 , China
- b State Key Laboratory of Drug Research , Shanghai Institute of Materia Medica, Chinese Academy of Sciences , Shanghai 201203 , China
| | - Yao-Yue Fan
- b State Key Laboratory of Drug Research , Shanghai Institute of Materia Medica, Chinese Academy of Sciences , Shanghai 201203 , China
| | - Cheng-Hui Xu
- b State Key Laboratory of Drug Research , Shanghai Institute of Materia Medica, Chinese Academy of Sciences , Shanghai 201203 , China
| | - Jian Ding
- b State Key Laboratory of Drug Research , Shanghai Institute of Materia Medica, Chinese Academy of Sciences , Shanghai 201203 , China
| | - Guan-Wu Wang
- c CAS Key Laboratory of Soft Matter Chemistry, Hefei National Laboratory for Physical Sciences at Microscale , Department of Chemistry , University of Science and Technology of China , Hefei 230026 , China
| | - Jian-Min Yue
- b State Key Laboratory of Drug Research , Shanghai Institute of Materia Medica, Chinese Academy of Sciences , Shanghai 201203 , China
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14
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Chemical Constituents from Croton Species and Their Biological Activities. Molecules 2018; 23:molecules23092333. [PMID: 30213129 PMCID: PMC6225158 DOI: 10.3390/molecules23092333] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Revised: 09/07/2018] [Accepted: 09/10/2018] [Indexed: 12/12/2022] Open
Abstract
The genus Croton belongs to the Euphorbiaceae family, which comprises approximately 1300 species. Many Croton species have been used as folk medicines. This review focuses on the chemical constituents from Croton species and their relevant biological activities, covering the period from 2006 to 2018. A total of 399 new compounds, including 339 diterpenoids, were reported. Diterpenoids are characteristic components of the Croton species. These isolated compounds exhibited a broad spectrum of bioactivities, including cytotoxic, anti-inflammatory, antifungal, acetylcholinesterase inhibitory, and neurite outgrowth-promoting properties. The present review provides a significant clue for further research of the chemical constituents from the Croton species as potential medicines.
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15
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Barth EF, Pinto LS, Dileli P, Biavatti DC, Silva YL, Bortolucci W, Gazim ZC, Takemura OS, Romagnolo MB, Laverde-Junior A. Biological screening of extracts from leaf and stem bark of Croton floribundus Spreng. (Euphorbiaceae). BRAZ J BIOL 2018; 78:601-608. [DOI: 10.1590/1519-6984.166522] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Accepted: 07/14/2017] [Indexed: 12/18/2022] Open
Abstract
Abstract This work describes the preliminary evaluation of cytotoxic, antimicrobial, molluscicidal, antioxidant and anticholinesterase activities from leaf (LECF) and stem bark alcoholic extracts (BECF) of the species Croton floribundus Spreng. (Euphorbiaceae), popularly known as capixingui or tapixingui. BECF presented significant toxicity (LC50 = 89.6 μg/ml) in the Artemia salina Leach, 1819 (Crustacea: Branchiopoda) bioassay, whereas LECF did not show activity (LC50 > 1000 μg/ml). From DPPH method, the values of IC50 for the LECF and BECF were 61.2 μg/ml and 62.2 μg/ml, respectively, showing that C. floribundus has an expressive antioxidant activity. Antimicrobial susceptibility was evaluated by microdilution technique and only BECF was active against Staphylococcus aureus (MIC = 39.6 μg/ml). The extracts did not present molluscicidal activity against snail Biomphalaria glabrata Say, 1818 (Gastropoda: Planorbidae). Both extracts revealed the presence of several components with an inhibiting capacity of acetylcholinesterase enzyme on the bioautographic assay. C. floribundus showed to be a promising species considering that it exhibited good biological activity in the most assays performed.
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Affiliation(s)
- E. F. Barth
- Universidade Paranaense, Brazil; Universidade Paranaense, Brazil
| | | | | | | | | | | | - Z. C. Gazim
- Universidade Paranaense, Brazil; Universidade Paranaense, Brazil
| | | | | | - A. Laverde-Junior
- Universidade Paranaense, Brazil; Universidade Paranaense, Brazil; Universidade Tecnológica Federal do Paraná, Brazil
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16
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Gao XH, Xu YS, Fan YY, Gan LS, Zuo JP, Yue JM. Cascarinoids A-C, a Class of Diterpenoid Alkaloids with Unpredicted Conformations from Croton cascarilloides. Org Lett 2018; 20:228-231. [PMID: 29251945 DOI: 10.1021/acs.orglett.7b03592] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Cascarinoids A-C (1-3), a new class of diterpenoid alkaloids with unpredicted conformations, were isolated and structurally characterized from Croton cascarilloides. It was demonstrated that the dispersion interaction might be one of the main contributors that stabilized the folded conformations for compounds 1-3. Compounds 2 and 3 showed moderate immunosuppressive activity against T and/or B lymphocyte cells.
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Affiliation(s)
- Xin-Hua Gao
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zuchongzhi Road, Shanghai 201203, People's Republic of China.,University of Chinese Academy of Sciences , No. 19A Yuquan Road, Beijing 100049, People's Republic of China
| | - Yan-Sheng Xu
- Laboratory of Immunology and Virology, Shanghai University of Traditional Chinese Medicine , Shanghai 201203, People's Republic of China
| | - Yao-Yue Fan
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zuchongzhi Road, Shanghai 201203, People's Republic of China
| | - Li-She Gan
- Institute of Modern Chinese Medicine, College of Pharmaceutical Sciences, Zhejiang University , Hangzhou 310058, People's Republic of China
| | - Jian-Ping Zuo
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zuchongzhi Road, Shanghai 201203, People's Republic of China.,Laboratory of Immunology and Virology, Shanghai University of Traditional Chinese Medicine , Shanghai 201203, People's Republic of China
| | - Jian-Min Yue
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zuchongzhi Road, Shanghai 201203, People's Republic of China
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17
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Jiang L, Zhang YB, Jiang SQ, Zhou YD, Luo D, Niu QW, Qian YR, Li YL, Wang GC. Phorbol ester-type diterpenoids from the twigs and leaves of Croton tiglium. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2017; 19:1191-1197. [PMID: 28374632 DOI: 10.1080/10286020.2017.1307836] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2016] [Accepted: 03/14/2017] [Indexed: 06/07/2023]
Abstract
Phytochemical investigation of the ethanol extract from the twigs and leaves of Croton tiglium led to the isolation of two new phorbol esters (1-2) and seven known ones (3-9). Their structures were elucidated by the analyses of extensive spectroscopic data (IR, MS, and 1D and 2D NMR) and comparing with related compounds. Meanwhile, compounds 1-9 were determined for their cytotoxic activities on human lung cancer cell line A549. Among them, 1-2 were inactive against the cell line A549 (IC50 > 100 μM), but compounds 3 and 7 showed weak activities.
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Affiliation(s)
- Lin Jiang
- a College of Pharmacy, Institute of Traditional Chinese Medicine & Natural Products , Jinan University , Guangzhou 510632 , China
- b Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research , Jinan University , Guangzhou 510632 , China
| | - Yu-Bo Zhang
- a College of Pharmacy, Institute of Traditional Chinese Medicine & Natural Products , Jinan University , Guangzhou 510632 , China
- b Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research , Jinan University , Guangzhou 510632 , China
| | - Si-Qi Jiang
- a College of Pharmacy, Institute of Traditional Chinese Medicine & Natural Products , Jinan University , Guangzhou 510632 , China
- b Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research , Jinan University , Guangzhou 510632 , China
| | - Yi-Duo Zhou
- a College of Pharmacy, Institute of Traditional Chinese Medicine & Natural Products , Jinan University , Guangzhou 510632 , China
- b Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research , Jinan University , Guangzhou 510632 , China
| | - Ding Luo
- a College of Pharmacy, Institute of Traditional Chinese Medicine & Natural Products , Jinan University , Guangzhou 510632 , China
- b Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research , Jinan University , Guangzhou 510632 , China
| | - Qian-Wen Niu
- a College of Pharmacy, Institute of Traditional Chinese Medicine & Natural Products , Jinan University , Guangzhou 510632 , China
- b Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research , Jinan University , Guangzhou 510632 , China
| | - Yi-Rui Qian
- a College of Pharmacy, Institute of Traditional Chinese Medicine & Natural Products , Jinan University , Guangzhou 510632 , China
- b Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research , Jinan University , Guangzhou 510632 , China
| | - Yao-Lan Li
- a College of Pharmacy, Institute of Traditional Chinese Medicine & Natural Products , Jinan University , Guangzhou 510632 , China
- b Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research , Jinan University , Guangzhou 510632 , China
| | - Guo-Cai Wang
- a College of Pharmacy, Institute of Traditional Chinese Medicine & Natural Products , Jinan University , Guangzhou 510632 , China
- b Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research , Jinan University , Guangzhou 510632 , China
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18
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Liu L, Yu H, Wu H, Yang X, Pan Y, Chen Y, Wang K, Wang W, Zhang W, Jin Y, Zhang C, Jiang A, Xia C. Toxic proteins from Croton tiglium L. exert a proinflammatory effect by inducing release of proinflammatory cytokines and activating the p38-MAPK signaling pathway. Mol Med Rep 2017; 16:631-638. [PMID: 28560398 PMCID: PMC5482117 DOI: 10.3892/mmr.2017.6617] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Accepted: 03/24/2017] [Indexed: 11/21/2022] Open
Abstract
The aim of the present study was to determine the toxic targets of proteins from Croton tiglium L. and to investigate the potential mechanism of their toxicity. The toxic targets were determined by oral medication and intraperitoneal injection. The median lethal dose of oral medication in mice was calculated using Bliss software (2,752.8–3,407.5 mg/kg), and that of intraperitoneal injection was 195.8–272.69 mg/kg. The results of histopathological examination demonstrated that the kidney was primarily impaired by intraperitoneal injection, with slight degeneration of renal tubular epithelial cells. As to oral medication, the digestive tract was primarily injured, which manifested as congestion, bleeding, serious edema and other symptoms. Oral administration of the proteins caused gastrointestinal edema by increasing the intestinal permeability. Severe edema was associated with the inflammatory response, therefore the association between the toxicity of the proteins and inflammation was investigated. The proinflammatory effects of the crude proteins on the release of inflammatory mediator prostaglandin E2 (PGE2) were evaluated through intraperitoneal injection and the production of proinflammatory cytokines in RAW264.7 macrophages. Maximum PGE2 was released in the mice in vivo following intraperitoneal injection with 400 mg crude protein/kg body weight. Proinflammatory cytokines in macrophages, including tumor necrosis factor-α and interleukin-1β, were produced in dose- and time-dependent manners in vitro. furthermore, the expressions of cell signaling molecules were detected by western blotting. The inflammatory response induced by crude protein in macrophages was associated with the mitogen-activated protein kinase (MAPK) signaling pathway mainly including p38-MAPK, extracellular signal-regulated kinase 1/2 and c-Jun N-terminal kinase 1/2/3 and the activated p38-MAPK signaling pathway. However, extracellular signal-regulated kinase 1/2 and c-Jun N-terminal kinases 1–3 exhibited no significant response.
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Affiliation(s)
- Liping Liu
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, P.R. China
| | - Hongli Yu
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, P.R. China
| | - Hao Wu
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, P.R. China
| | - Xiaolin Yang
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, P.R. China
| | - Yaozong Pan
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, P.R. China
| | - Yeqing Chen
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, P.R. China
| | - Kuilong Wang
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, P.R. China
| | - Wei Wang
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, P.R. China
| | - Wenying Zhang
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, P.R. China
| | - Yangping Jin
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, P.R. China
| | - Chengchao Zhang
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, P.R. China
| | - Ai Jiang
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, P.R. China
| | - Chunyan Xia
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, P.R. China
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19
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Yang L, Zhang YB, Chen LF, Chen NH, Wu ZN, Jiang SQ, Jiang L, Li GQ, Li YL, Wang GC. New labdane diterpenoids from Croton laui and their anti-inflammatory activities. Bioorg Med Chem Lett 2016; 26:4687-4691. [DOI: 10.1016/j.bmcl.2016.08.052] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Revised: 08/12/2016] [Accepted: 08/18/2016] [Indexed: 10/21/2022]
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20
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Zhao BQ, Peng S, He WJ, Liu YH, Wang JF, Zhou XJ. Antitubercular and cytotoxic tigliane-type diterpenoids from Croton tiglium. Bioorg Med Chem Lett 2016; 26:4996-4999. [DOI: 10.1016/j.bmcl.2016.09.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Revised: 07/02/2016] [Accepted: 09/02/2016] [Indexed: 02/02/2023]
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21
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Abstract
This review covers the isolation and chemistry of diterpenoids from terrestrial as opposed to marine sources and includes labdanes, clerodanes, pimaranes, abietanes, kauranes, cembranes and their cyclization products. The literature from January to December, 2015 is reviewed.
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