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Huang LJ, Lan JX, Wang JH, Huang H, Lu K, Zhou ZN, Xin SY, Zhang ZY, Wang JY, Dai P, Chen XM, Hou W. Bioactivity and mechanism of action of sanguinarine and its derivatives in the past 10 years. Biomed Pharmacother 2024; 173:116406. [PMID: 38460366 DOI: 10.1016/j.biopha.2024.116406] [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: 01/03/2024] [Revised: 02/27/2024] [Accepted: 03/06/2024] [Indexed: 03/11/2024] Open
Abstract
Sanguinarine is a quaternary ammonium benzophenanthine alkaloid found in traditional herbs such as Chelidonium, Corydalis, Sanguinarum, and Borovula. It has been proven to possess broad-spectrum biological activities, such as antitumor, anti-inflammatory, antiosteoporosis, neuroprotective, and antipathogenic microorganism activities. In this paper, recent progress on the biological activity and mechanism of action of sanguinarine and its derivatives over the past ten years is reviewed. The results showed that the biological activities of hematarginine and its derivatives are related mainly to the JAK/STAT, PI3K/Akt/mTOR, NF-κB, TGF-β, MAPK and Wnt/β-catenin signaling pathways. The limitations of using sanguinarine in clinical application are also discussed, and the research prospects of this subject are outlined. In general, sanguinarine, a natural medicine, has many pharmacological effects, but its toxicity and safety in clinical application still need to be further studied. This review provides useful information for the development of sanguinarine-based bioactive agents.
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Affiliation(s)
- Le-Jun Huang
- College of Rehabilitation, Gannan Medical University, Ganzhou, Jiangxi 341000, PR China
| | - Jin-Xia Lan
- College of Public Health and Health Management, Gannan Medical University, Ganzhou, Jiangxi 341000, PR China
| | - Jin-Hua Wang
- Ji'an Central People's Hospital (Shanghai East Hospital Ji'an Hospital), Ji'an, Jiangxi 343100, PR China
| | - Hao Huang
- College of Pharmacy, Gannan Medical University, Ganzhou, Jiangxi 341000, PR China
| | - Kuo Lu
- Henan International Joint Laboratory of Children's Infectious Diseases, Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou, Henan 450018, PR China
| | - Zhi-Nuo Zhou
- College of Pharmacy, Gannan Medical University, Ganzhou, Jiangxi 341000, PR China
| | - Su-Ya Xin
- College of Pharmacy, Gannan Medical University, Ganzhou, Jiangxi 341000, PR China
| | - Zi-Yun Zhang
- College of Pharmacy, Gannan Medical University, Ganzhou, Jiangxi 341000, PR China
| | - Jing-Yang Wang
- College of Pharmacy, Gannan Medical University, Ganzhou, Jiangxi 341000, PR China
| | - Ping Dai
- College of Pharmacy, Gannan Medical University, Ganzhou, Jiangxi 341000, PR China
| | - Xiao-Mei Chen
- Department of Hematology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong 510080, PR China
| | - Wen Hou
- College of Pharmacy, Gannan Medical University, Ganzhou, Jiangxi 341000, PR China.
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Qiao L, Zhang Y, Chen Y, Chi X, Ding J, Zhang H, Han Y, Zhang B, Jiang J, Lin Y. Synergistic Activity and Mechanism of Sanguinarine with Polymyxin B against Gram-Negative Bacterial Infections. Pharmaceutics 2024; 16:70. [PMID: 38258081 PMCID: PMC10820148 DOI: 10.3390/pharmaceutics16010070] [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: 11/08/2023] [Revised: 12/18/2023] [Accepted: 12/28/2023] [Indexed: 01/24/2024] Open
Abstract
Compounds that potentiate the activity of clinically available antibiotics provide a complementary solution, except for developing novel antibiotics for the rapid emergence of multidrug-resistant Gram-negative bacteria (GNB). We sought to identify compounds potentiating polymyxin B (PMB), a traditional drug that has been revived as the last line for treating life-threatening GNB infections, thus reducing its nephrotoxicity and heterogeneous resistance in clinical use. In this study, we found a natural product, sanguinarine (SA), which potentiated the efficacy of PMB against GNB infections. The synergistic effect of SA with PMB was evaluated using a checkerboard assay and time-kill curves in vivo and the murine peritonitis model induced by Escherichia coli in female CD-1 mice in vivo. SA assisted PMB in accelerating the reduction in bacterial loads both in vitro and in vivo, improving the inflammatory responses and survival rate of infected animals. The subsequent detection of the intracellular ATP levels, membrane potential, and membrane integrity indicated that SA enhanced the bacterial-membrane-breaking capacity of PMB. A metabolomic analysis showed that the inhibition of energy metabolism, interference with nucleic acid biosynthesis, and the blocking of L-Ara4N-related PMB resistance may also contribute to the synergistic effect. This study is the first to reveal the synergistic activity and mechanism of SA with PMB, which highlights further insights into anti-GNB drug development.
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Affiliation(s)
- Luyao Qiao
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China; (L.Q.); (Y.Z.); (Y.C.); (X.C.); (J.D.); (H.Z.); (Y.H.)
- Department of Pharmacy & State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China;
| | - Yu Zhang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China; (L.Q.); (Y.Z.); (Y.C.); (X.C.); (J.D.); (H.Z.); (Y.H.)
| | - Ying Chen
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China; (L.Q.); (Y.Z.); (Y.C.); (X.C.); (J.D.); (H.Z.); (Y.H.)
| | - Xiangyin Chi
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China; (L.Q.); (Y.Z.); (Y.C.); (X.C.); (J.D.); (H.Z.); (Y.H.)
| | - Jinwen Ding
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China; (L.Q.); (Y.Z.); (Y.C.); (X.C.); (J.D.); (H.Z.); (Y.H.)
| | - Hongjuan Zhang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China; (L.Q.); (Y.Z.); (Y.C.); (X.C.); (J.D.); (H.Z.); (Y.H.)
| | - Yanxing Han
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China; (L.Q.); (Y.Z.); (Y.C.); (X.C.); (J.D.); (H.Z.); (Y.H.)
| | - Bo Zhang
- Department of Pharmacy & State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China;
| | - Jiandong Jiang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China; (L.Q.); (Y.Z.); (Y.C.); (X.C.); (J.D.); (H.Z.); (Y.H.)
| | - Yuan Lin
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China; (L.Q.); (Y.Z.); (Y.C.); (X.C.); (J.D.); (H.Z.); (Y.H.)
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Liang D, Liu L, Zheng Q, Zhao M, Zhang G, Tang S, Tang J, Chen N. Chelerythrine chloride inhibits the progression of colorectal cancer by targeting cancer-associated fibroblasts through intervention with WNT10B/β-catenin and TGFβ2/Smad2/3 axis. Phytother Res 2023; 37:4674-4689. [PMID: 37402476 DOI: 10.1002/ptr.7934] [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: 12/09/2022] [Revised: 06/18/2023] [Accepted: 06/21/2023] [Indexed: 07/06/2023]
Abstract
Chelerythrine chloride (CHE) is a benzodiazepine alkaloid derived from natural herbs with significant anti-tumor and anti-inflammatory activities. However, the exact role and underlying mechanisms of CHE in colorectal cancer (CRC) remain unclear. Therefore, this study is aimed to investigate the influence of CHE on the progression of CRC. Cell Counting Kit-8 assay (CCK-8), transwell, apoptosis rate, cell cycle distribution, reactive oxygen species (ROS), and colony formation determined the anti-proliferative activity of CHE in CRC cell lines. Transcriptome sequencing and western blot were used to explore the mechanism. Finally, H&E staining, Ki67, TUNEL, and immunofluorescence were conducted to verify the anti-CRC activity and potential mechanisms of CHE in vivo. CHE had a prominent inhibitory effect on the proliferation of CRC cells. CHE induces G1 and S phase arrest and induces cell apoptosis by ROS accumulation. Cancer-associated fibroblasts (CAFs) play a key role in CRC metastasis. Then, this study found that CHE regulates WNT10B/β-catenin and TGFβ2/Smad2/3 axis, thereby decreasing the expression of α-SMA, which is a maker of CAFs. Taken together, CHE is a candidate drug and a potent compound for metastatic CRC, which can intervene CAFs in a dual pathway to effectively inhibit the invasion and migration of cancer cells, which can provide a new choice for future clinical treatment.
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Affiliation(s)
- Dan Liang
- TCM Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Lu Liu
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Qiao Zheng
- TCM Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Maoyuan Zhao
- TCM Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Gang Zhang
- TCM Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Shiyun Tang
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jianyuan Tang
- TCM Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Nianzhi Chen
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing, China
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Liao F, Han C, Deng Q, Zhou Z, Bao T, Zhong M, Tao G, Li R, Han B, Qiao Y, Hu Y. Natural Products as Mite Control Agents in Animals: A Review. Molecules 2023; 28:6818. [PMID: 37836661 PMCID: PMC10574536 DOI: 10.3390/molecules28196818] [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: 08/25/2023] [Revised: 09/19/2023] [Accepted: 09/25/2023] [Indexed: 10/15/2023] Open
Abstract
Mites have been a persistent infectious disease affecting both humans and animals since ancient times. In veterinary clinics, the primary approach for treating and managing mite infestations has long been the use of chemical acaricides. However, the widespread use of these chemicals has resulted in significant problems, including drug resistance, drug residues, and environmental pollution, limiting their effectiveness. To address these challenges, researchers have shifted their focus towards natural products that have shown promise both in the laboratory and real-world settings against mite infestations. Natural products have a wide variety of chemical structures and biological activities, including acaricidal properties. This article offers a comprehensive review of the acaricidal capabilities and mechanisms of action of natural products like plant extracts, natural compounds, algae, and microbial metabolites against common animal mites.
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Affiliation(s)
- Fei Liao
- Department of Animal Husbandry and Fisheries, Guizhou Vocational College of Agriculture, Qingzhen 551400, China; (F.L.); (C.H.); (Q.D.); (M.Z.); (G.T.); (R.L.); (B.H.)
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China;
| | - Changquan Han
- Department of Animal Husbandry and Fisheries, Guizhou Vocational College of Agriculture, Qingzhen 551400, China; (F.L.); (C.H.); (Q.D.); (M.Z.); (G.T.); (R.L.); (B.H.)
| | - Qingsheng Deng
- Department of Animal Husbandry and Fisheries, Guizhou Vocational College of Agriculture, Qingzhen 551400, China; (F.L.); (C.H.); (Q.D.); (M.Z.); (G.T.); (R.L.); (B.H.)
| | - Ziyao Zhou
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China;
| | - Taotao Bao
- Qiandongnan Center for Animal Disease Control and Prevention, Kaili 556000, China;
| | - Menghuai Zhong
- Department of Animal Husbandry and Fisheries, Guizhou Vocational College of Agriculture, Qingzhen 551400, China; (F.L.); (C.H.); (Q.D.); (M.Z.); (G.T.); (R.L.); (B.H.)
| | - Guangyao Tao
- Department of Animal Husbandry and Fisheries, Guizhou Vocational College of Agriculture, Qingzhen 551400, China; (F.L.); (C.H.); (Q.D.); (M.Z.); (G.T.); (R.L.); (B.H.)
| | - Renjun Li
- Department of Animal Husbandry and Fisheries, Guizhou Vocational College of Agriculture, Qingzhen 551400, China; (F.L.); (C.H.); (Q.D.); (M.Z.); (G.T.); (R.L.); (B.H.)
| | - Bo Han
- Department of Animal Husbandry and Fisheries, Guizhou Vocational College of Agriculture, Qingzhen 551400, China; (F.L.); (C.H.); (Q.D.); (M.Z.); (G.T.); (R.L.); (B.H.)
| | - Yanlong Qiao
- Department of Animal Husbandry and Fisheries, Guizhou Vocational College of Agriculture, Qingzhen 551400, China; (F.L.); (C.H.); (Q.D.); (M.Z.); (G.T.); (R.L.); (B.H.)
| | - Yanchun Hu
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China;
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Yang SS, Lv QY, Fu J, Zhang TY, Du YS, Yang XJ, Zhou L. New 7-Chloro-9-methyl-2-phenyl-3,4-dihydro-β-carbolin-2-iums as Promising Fungicide Candidates: Design, Synthesis, and Bioactivity. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:4256-4266. [PMID: 35362951 DOI: 10.1021/acs.jafc.1c07278] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
As our further research, a series of new 7-chloro-9-methyl-2-phenyl-3,4-dihydro-β-carbolin-2-iums were designed and synthesized. Twelve compounds were found with excellent inhibition activity in vitro on three to five out of six phytopathogenic fungi, superior to standard drugs thiabendazole and/or azoxystrobin. Especially, 18 displayed the highest activity against three out of the fungi and the highest comprehensive activity for all of the fungi. The test in vivo revealed that 18 at 50 μg/mL was able to completely control Physalospora piricola infections in apples over 8 days. Scanning/transmission electron microscopic observations found that 18 could damage the hyphal integrity and cell membrane structure of P. piricola. The safety evaluation showed that 18 had no effect on the germination rate of cowpea seed at ≤200 μg/mL. The SAR revealed that the combination of 7-Cl and 2'- or 4'-alkyl is conducive to improvement of the activity. Thus, 7-chloro-9-methyl-2-phenyl-3,4-dihydro-β-carbolin-2-ium is a promising antifungal lead scaffold.
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Affiliation(s)
- Shan-Shan Yang
- College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling, Xianyang 712100, Shaanxi, China
| | - Qing-Yun Lv
- College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling, Xianyang 712100, Shaanxi, China
| | - Juan Fu
- College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling, Xianyang 712100, Shaanxi, China
| | - Tian-Yi Zhang
- College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling, Xianyang 712100, Shaanxi, China
| | - Yi-Si Du
- College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling, Xianyang 712100, Shaanxi, China
| | - Xin-Juan Yang
- College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling, Xianyang 712100, Shaanxi, China
| | - Le Zhou
- College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling, Xianyang 712100, Shaanxi, China
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Zhu M, Niu J, Jiang J, Dong T, Chen Y, Yang X, Liu P. Chelerythrine inhibits the progression of glioblastoma by suppressing the TGFB1-ERK1/2/Smad2/3-Snail/ZEB1 signaling pathway. Life Sci 2022; 293:120358. [PMID: 35092731 DOI: 10.1016/j.lfs.2022.120358] [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: 11/23/2021] [Revised: 01/18/2022] [Accepted: 01/23/2022] [Indexed: 11/19/2022]
Abstract
AIMS Glioblastoma (GBM) is the most common and aggressive intracranial tumor with poor prognosis. A large majority of clinical chemotherapeutic agents cannot achieve the desired therapeutic effect. Chelerythrine (CHE), a natural component with multitudinous pharmacological functions, has been proven to have outstanding antitumor effects in addition to antibacterial, anti-inflammatory, and hypotensive effects. However, the anti-GBM effect of CHE has not been reported to date. The purpose of this paper is to observe the anti-GBM effect of CHE and further explore the related mechanism. MATERIALS AND METHODS GBM cell lines (U251 and T98G) and BALB/c nude mice were used in the experiments. Methyl thiazolyl tetrazolium (MTT) and clone formation assays were applied to detect the viability, proliferation and stemness of GBM cells. Flow cytometry was utilized to identify the effect of CHE on GBM apoptosis. Scratch and Transwell experiments reflected the migration and invasion of cells. In vivo, xenograft tumors were implanted subcutaneously in nude mice. The progression of tumors was assessed by ultrasound and magnetic resonance imaging. Finally, western blot, bioinformatics, and immunohistochemistry experiments were used to explore the molecular mechanisms in depth. KEY FINDINGS In vitro tests showed that CHE inhibited the proliferation, stemness, migration, and invasion of GBM cells and induced apoptosis. In vitro, CHE was observed to restrain the progression of xenograft tumors. We eventually proved that the cytotoxicity of CHE was relevant to the TGFB1-ERK1/2/Smad2/3-Snail/ZEB1 signaling pathway. SIGNIFICANCE CHE inhibited GBM progression by inhibiting the TGFB1-ERK1/2/Smad2/3-Snail/ZEB1 signaling pathway and is a potential chemotherapeutic drug for GBM.
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Affiliation(s)
- Mingwei Zhu
- Department of Abdominal Ultrasound, The First Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - Jiamei Niu
- Department of Abdominal Ultrasound, The First Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - Jian Jiang
- Department of Abdominal Ultrasound, The First Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - Tianxiu Dong
- Department of Abdominal Ultrasound, The First Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - Yaodong Chen
- Department of Abdominal Ultrasound, The First Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - Xiuhua Yang
- Department of Abdominal Ultrasound, The First Affiliated Hospital of Harbin Medical University, Harbin 150001, China.
| | - Pengfei Liu
- Department of Magnetic Resonance, The First Affiliated Hospital of Harbin Medical University, Harbin 150001, China.
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Seen SB, Gong Y, Ashton M. The application of the Fischer indole synthesis in medicinal chemistry. ADVANCES IN HETEROCYCLIC CHEMISTRY 2022. [DOI: 10.1016/bs.aihch.2022.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Zhang J, Liang Y, Ren L, Zhang T. In vitro Anti-Inflammatory Potency of Sanguinarine and Chelerythrine via Interaction with Glucocorticoid Receptor. EFOOD 2021. [DOI: 10.2991/efood.k.210118.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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Cui ZM, Zhou BH, Fu C, Chen L, Fu J, Cao FJ, Yang XJ, Zhou L. Simple Analogues of Quaternary Benzo[ c]phenanthridine Alkaloids: Discovery of a Novel Antifungal 2-Phenylphthalazin-2-ium Scaffold with Excellent Potency against Phytopathogenic Fungi. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:15418-15427. [PMID: 33332120 DOI: 10.1021/acs.jafc.0c06507] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Inspired by sanguinarine and chelerythrine, a novel antifungal 2-phenylphthalazin-2-ium scaffold as a simple analogue was designed. Most of the 30 compounds showed excellent inhibition activity against almost all eight phytopathogenic fungi, far superior to sanguinarine and chelerythrine. A third of the compounds were more active than azoxystrobin in most cases. Compounds 26 and 27 showed the highest total activity against all the fungi with EC50 means of ca. 4.6 μg/mL. Fusarium solani showed the highest susceptibility with an EC50 mean of 3.62 μg/mL to 19 compounds. A concentration of 25.0 μg/mL 27 can fully control the Colletotrichum gloeosporioides infection in apples over 9 days. Electron microscopic observations showed that 27 was able to damage the structures of the hypha and cell membrane. The structure-activity relationship showed that the presence of electron-withdrawing groups on the C-ring increases the activity against most of the fungi. Thus, 2-phenylphthalazin-2-ium compounds represent promising leads for the development of novel fungicides.
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Affiliation(s)
- Zhi-Ming Cui
- College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling, Yangling 712100, Shaanxi, China
| | - Bo-Hang Zhou
- College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling, Yangling 712100, Shaanxi, China
| | - Chao Fu
- College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling, Yangling 712100, Shaanxi, China
| | - Liu Chen
- College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling, Yangling 712100, Shaanxi, China
| | - Juan Fu
- College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling, Yangling 712100, Shaanxi, China
| | - Fang-Jun Cao
- Shaanxi Institute of Zoology, No. 88 Xingqing Road, Xi'an 710032, China
| | - Xin-Juan Yang
- College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling, Yangling 712100, Shaanxi, China
| | - Le Zhou
- College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling, Yangling 712100, Shaanxi, China
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Lin Q, Ma C, Guan H, Chen L, Xie Q, Cheng X, Wang C. Metabolites identification and reversible interconversion of chelerythrine and dihydrochelerythrine in vitro/in vivo in rats using ultra-performance liquid chromatography combined with electrospray ionization quadrupole time-of-flight tandem mass spectrometry. J Pharm Biomed Anal 2020; 189:113462. [DOI: 10.1016/j.jpba.2020.113462] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 07/03/2020] [Accepted: 07/03/2020] [Indexed: 12/14/2022]
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Zapol’skii VA, Bilitewski U, Kupiec SR, Ramming I, Kaufmann DE. Polyhalonitrobutadienes as Versatile Building Blocks for the Biotargeted Synthesis of Substituted N-Heterocyclic Compounds. Molecules 2020; 25:molecules25122863. [PMID: 32575902 PMCID: PMC7355852 DOI: 10.3390/molecules25122863] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 06/15/2020] [Accepted: 06/17/2020] [Indexed: 11/16/2022] Open
Abstract
Substituted nitrogen heterocycles are structural key units in many important pharmaceuticals. A new synthetic approach towards heterocyclic compounds displaying antibacterial activity against Staphylococcus aureus or cytotoxic activity has been developed. The selective synthesis of a series of 64 new N-heterocycles from the three nitrobutadienes 2-nitroperchloro-1,3-butadiene, 4-bromotetrachloro-2-nitro-1,3-butadiene and (Z)-1,1,4-trichloro-2,4-dinitrobuta-1,3-diene proved feasible. Their reactions with N-, O- and S-nucleophiles provide rapid access to push-pull substituted benzoxazolines, benzimidazolines, imidazolidines, thiazolidinones, pyrazoles, pyrimidines, pyridopyrimidines, benzoquinolines, isothiazoles, dihydroisoxazoles, and thiophenes with unique substitution patterns. Antibacterial activities of 64 synthesized compounds were examined. Additionally, seven compounds (thiazolidinone, nitropyrimidine, indole, pyridopyrimidine, and thiophene derivatives) exhibited a significant cytotoxicity with IC50-values from 1.05 to 20.1 µM. In conclusion, it was demonstrated that polyhalonitrobutadienes have an interesting potential as structural backbones for a variety of highly functionalized, pharmaceutically active heterocycles.
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Affiliation(s)
- Viktor A. Zapol’skii
- Institute of Organic Chemistry, Clausthal University of Technology, Leibnizstraße 6, 38678 Clausthal-Zellerfeld, Germany; (V.A.Z.); (S.R.K.)
| | - Ursula Bilitewski
- Helmholtz Centre for Infection Research (HZI), Inhoffenstr. 7, 38124 Braunschweig, Germany; (U.B.); (I.R.)
| | - Sören R. Kupiec
- Institute of Organic Chemistry, Clausthal University of Technology, Leibnizstraße 6, 38678 Clausthal-Zellerfeld, Germany; (V.A.Z.); (S.R.K.)
| | - Isabell Ramming
- Helmholtz Centre for Infection Research (HZI), Inhoffenstr. 7, 38124 Braunschweig, Germany; (U.B.); (I.R.)
| | - Dieter E. Kaufmann
- Institute of Organic Chemistry, Clausthal University of Technology, Leibnizstraße 6, 38678 Clausthal-Zellerfeld, Germany; (V.A.Z.); (S.R.K.)
- Correspondence:
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Zhou B, Li H, Cui Z, Li D, Geng H, Gao J, Zhou L. Simple analogues of natural product chelerythrine: Discovery of a novel anticholinesterase 2-phenylisoquinolin-2-ium scaffold with excellent potency against acetylcholinesterase. Eur J Med Chem 2020; 200:112415. [PMID: 32454229 DOI: 10.1016/j.ejmech.2020.112415] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Revised: 04/16/2020] [Accepted: 04/29/2020] [Indexed: 12/19/2022]
Abstract
As simple analogues of the natural compound chelerythrine, a novel anti-cholinesterase 2-phenylisoquinolin-2-ium scaffold was designed by structure imitation. The activity evaluation led to the discovery of seven compounds with potent anti-acetylcholinesterase activity with IC50 values of ≤0.72 μM, superior to chelerythrine and standard drugs galantamine. Particularly, compound 8y showed the excellent dual acetylcholinesterase-butyrylcholinesterase inhibition activity, superior to rivastigmine, a dual cholinesterase inhibitor drug. Furthermore, the compounds displayed a competitive anti-acetylcholinesterase mechanism with the substrate and low cytotoxicity. Molecular docking showed that the isoquinoline moiety is embedded in a cavity surrounded by four aromatic residues of acetylcholinesterase by the π-π action. Structure-activity relationship showed that the p-substituents on the C-ring can dramatically improve the anti-acetylcholinesterase activity, while 8-OMe can increase the activity against the two cholinesterases simultaneously. Thus, the title compounds emerged as promising lead compounds for the development of novel cholinesterase inhibitor agents.
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Affiliation(s)
- Bohang Zhou
- College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling, 712100, Shaanxi, China
| | - Hui Li
- College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling, 712100, Shaanxi, China
| | - Zhiming Cui
- College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling, 712100, Shaanxi, China
| | - Ding Li
- College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling, 712100, Shaanxi, China
| | - Huiling Geng
- College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling, 712100, Shaanxi, China.
| | - Jinming Gao
- College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling, 712100, Shaanxi, China.
| | - Le Zhou
- College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling, 712100, Shaanxi, China.
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Li X, Zhang B, Zhao W, Yang S, Yang X, Zhou L. New 2-aryl-6-methyl-3,4-dihydro-β-carbolin-2-iums as potential antifungal agents: Synthesis, bioactivity and structure-activity relationship. Sci Rep 2019; 9:1941. [PMID: 30760841 PMCID: PMC6374477 DOI: 10.1038/s41598-018-38222-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Accepted: 12/20/2018] [Indexed: 12/31/2022] Open
Abstract
Thirty new title compounds along with five known analogues were prepared from commercially available 2-arylhydrazin-1-ium chlorides and α-ketoglutaric acid. The mycelium growth rate method was used to evaluate inhibition activity against six strains of plant pathogenic fungi. Most of the compounds displayed the activity for each the fungi at 150 μΜ, higher than azoxystrobin, a positive drug. Compound 6-2 showed the lowest average IC50 value of 4.58 μg/mL for all the fungi where F. solani exhibited the highest susceptibility to most of the compounds. For F. solani, some compounds were more active with IC50 values of 2.67-8.48 μM than thiabendazole (IC50 = 9.30 μM) and/or carbendazim (IC50 = 3.36 μM). The SAR showed that the activity is significantly affected by substituents on the A-ring and/or D-ring along with the degree of unsaturation of the C-ring. Thus, a series of new β-carboline compounds with potent antifungal potential were found.
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Affiliation(s)
- Xingqiang Li
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, Shaanxi Province, People's Republic of China
| | - Bingyu Zhang
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, Shaanxi Province, People's Republic of China
| | - Wei Zhao
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, Shaanxi Province, People's Republic of China
| | - Shanshan Yang
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, Shaanxi Province, People's Republic of China
| | - Xinjuan Yang
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, Shaanxi Province, People's Republic of China.
| | - Le Zhou
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, Shaanxi Province, People's Republic of China.
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Structurally Simple Phenanthridine Analogues Based on Nitidine and Their Antitumor Activities. Molecules 2019; 24:molecules24030437. [PMID: 30691109 PMCID: PMC6385102 DOI: 10.3390/molecules24030437] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 01/22/2019] [Accepted: 01/23/2019] [Indexed: 01/01/2023] Open
Abstract
A series of novel structurally simple analogues based on nitidine was designed and synthesized in search of potent anticancer agents. The antitumor activity against human cancer cell lines (HepG2, A549, NCI-H460, and CNE1) was performed by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) assay in vitro. The results showed that some of them had good anticancer activities, especially derivatives with a [(dimethylamino)ethyl]amino side chain in the C-6 position. Planar conjugated compounds 15a, 15b, and 15c, with IC50 values of 1.20 μM, 1.87 μM, and 1.19 μM against CNE1 cells, respectively, were more active than nitidine chloride. Compound 15b and compound 15c with IC50 values of 1.19 μM and 1.37 μM against HepG2 cells and A549 cells demonstrated superior activities to nitidine. Besides, compound 5e which had a phenanthridinone core displayed extraordinary cytotoxicity against all test cells, particularly against CNE1 cells with the IC50 value of 1.13 μM.
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Cao FJ, Xu MX, Zhou BH, Du YS, Yao JH, Zhou L. Effects of 2-aryl-1-cyano-1,2,3,4-tetrohydroisoquinolines on apoptosis induction mechanism in NB4 and MKN-45 cells. Toxicol In Vitro 2018; 54:295-303. [PMID: 30342220 DOI: 10.1016/j.tiv.2018.10.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2018] [Revised: 09/18/2018] [Accepted: 10/16/2018] [Indexed: 02/06/2023]
Abstract
Our previous study found that 2-aryl-1-cyano-1,2,3,4-tetrahydroisoquinolines (CATHIQs) have excellent anti-cancer activity and obvious apoptosis induction phenomenon. As our continuing research, this study further explored their underlying molecular mechanism of apoptosis induction in cancer cells. Flow cytometry analysis showed that the NB4 cells treated by 1-cyano-2-(2-fluorophenyl)-1,2,3,4-tetrahydroisoquinoline or the MKN-45 cells treated by 1-cyano-2-(4-trifluoromethylphenyl)-1,2,3,4-tetrahydroisoquinoline for 48 h were at early stage of apoptosis, and the cell cycle arrest was only slightly affected. Apoptosis rates of the cells significantly increase with the treatment concentration of the compounds. The compounds could significantly decrease the activities of SOD, raise the MDA level and promote the LDH leakage, suggesting that the excessive formation of ROS should be involved in the cell apoptosis. Western blot analysis showed that the compounds improved both Bax/Bcl-2 ratio and cleavages of procaspase-3, promoted efflux of cytochrome c to cytosol and phosphorylation of p38 and JNK, and attenuated phosphorylations of Akt and ERK. Together, inhibitions of PI3K/Akt and ERK and activation of p38 mediated the compounds-induced apoptosis through modulating the mitochondrial pathway and/or ROS production.
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Affiliation(s)
- Fang-Jun Cao
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, China; College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Ming-Xuan Xu
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Bo-Hang Zhou
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yi-Si Du
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Jun-Hu Yao
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Le Zhou
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, China.
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Selective inhibition of monoamine oxidase A by chelerythrine, an isoquinoline alkaloid. Bioorg Med Chem Lett 2018; 28:2403-2407. [DOI: 10.1016/j.bmcl.2018.06.023] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 06/04/2018] [Accepted: 06/12/2018] [Indexed: 02/03/2023]
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17
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Galadari S, Rahman A, Pallichankandy S, Thayyullathil F. Molecular targets and anticancer potential of sanguinarine-a benzophenanthridine alkaloid. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2017; 34:143-153. [PMID: 28899497 DOI: 10.1016/j.phymed.2017.08.006] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2016] [Revised: 07/06/2017] [Accepted: 08/06/2017] [Indexed: 05/03/2023]
Abstract
BACKGROUND Cancer is an enormous global health burden, and should be effectively addressed with better therapeutic strategies. Currently, over 60% of the clinically approved anticancer agents are either directly isolated from natural sources or are modified from natural lead molecules. Sanguinarine (SNG), a quaternary benzophenanthridine alkaloid has gained increasing attention in recent years as a potential anticancer agent. PURPOSE There is a large untapped source of phytochemical-based anticancer agents remaining to be explored. This review article aims to recapitulate different anticancer properties of SNG, and describes some of the molecular targets involved in exerting its effect. It also depicts the pharmacokinetic and toxicological properties of SNG, two parameters important in determining the druggability of a molecule. METHODS Numerous in vivo and in vitro published studies have signified the anticancer properties of SNG. In order to collate and decipher these properties, an extensive literature search was conducted in PubMed, ScienceDirect, and Scopus using keywords followed by the evaluation of the relevant articles where the relevant reports are integrated and analyzed. RESULTS Apart from inducing cell death, SNG inhibits pro-tumorigenic processes such as invasion, angiogenesis, and metastasis in different cancers. Moreover, SNG has been shown to synergistically enhance the sensitivity of several chemotherapeutic agents and is effective against a variety of multi-drug resistant cancers.
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Affiliation(s)
- Sehamuddin Galadari
- Cell Death Signaling Laboratory, Division of Science (Biology), Experimental Research Building, New York University Abu Dhabi, PO Box 129188, Saadiyat Island Campus, Abu Dhabi, UAE.
| | - Anees Rahman
- Cell Death Signaling Laboratory, Division of Science (Biology), Experimental Research Building, New York University Abu Dhabi, PO Box 129188, Saadiyat Island Campus, Abu Dhabi, UAE.
| | - Siraj Pallichankandy
- Cell Death Signaling Laboratory, Division of Science (Biology), Experimental Research Building, New York University Abu Dhabi, PO Box 129188, Saadiyat Island Campus, Abu Dhabi, UAE.
| | - Faisal Thayyullathil
- Cell Death Signaling Laboratory, Division of Science (Biology), Experimental Research Building, New York University Abu Dhabi, PO Box 129188, Saadiyat Island Campus, Abu Dhabi, UAE.
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18
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Mild C(sp 3)-H functionalization of dihydrosanguinarine and dihydrochelerythrine for development of highly cytotoxic derivatives. Eur J Med Chem 2017. [PMID: 28641156 DOI: 10.1016/j.ejmech.2017.06.021] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A series of C(6)-substituted dihydrobenzo[c]phenanthridines were synthesized by mild copper-catalyzed C(sp3)-H functionalization of dihydrosanguinarine (2) and dihydrochelerythrine (3) with certain nucleophiles selected to enhance cytotoxicity against human breast, colorectal, and prostate cancer cell lines. We also investigated the cytotoxicity of our previously reported C(6)-functionalized N-methyl-5,6-dihydrobenzo[c]phenanthridines 1a-1e to perform structure-activity relationship (SAR) studies. Among the target compounds, five β-aminomalonates (1a, 1b, 2a, 2b, and 3b), one α-aminophosphonate (2c), and one nitroalkyl derivative (2h) exhibited half maximal inhibitory concentration (IC50) values in the range of 0.6-8.2 μM. Derivatives 1b, 2b and 2h showed the lowest IC50 values, with 2b being the most potent with values comparable to those of the positive control doxorubicin. On the basis of their IC50 values, derivatives 1a, 1b, 2a, 2b, 2h, and 3b were selected to evaluate the apoptotic PC-3 cell death at 10 μM by flow cytometry using propidium iodide and fluorescein isothiocyanate-conjugated Annexin V dual staining. The results indicated that the cytotoxic activity of the tested compounds in PC-3 cells is due to the induction of apoptosis, with 1a and 2h being the most active (55% of early apoptosis induction). Our preliminary SAR study showed that the incorporation of specific malonic esters, dialkyl phosphites and nitro alkanes on scaffolds 1-3 significantly enhanced their cytotoxic properties. Moreover, it appears that the electron donating 7,8-methylenedioxy group allowed derivatives of 2 to exhibit higher cytotoxicity than derivatives of 1 and 3. The present results suggest that derivatives 2b and 2h may be considered as potential lead compounds for the development of new anticancer agents.
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New 2-aryl-7,8-dimethoxy-3,4-dihydroisoquinolin-2-ium salts as potential antifungal agents: synthesis, bioactivity and structure-activity relationships. Sci Rep 2017; 7:7537. [PMID: 28790333 PMCID: PMC5548800 DOI: 10.1038/s41598-017-07303-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Accepted: 06/26/2017] [Indexed: 11/12/2022] Open
Abstract
The title compounds can be considered as simple analogues of quaternary benzo[c]phenanthridine alkaloids (QBAs). In order to develop potent QBA-like antifungal agents, as our continuing study, a series of new title compounds were synthesized and evaluated for bioactivity against five plant pathogenic fungi by the mycelium growth rate method in this study. The SAR were also derived. The majority of the compounds showed good to excellent inhibition activity with average EC50 values of 7.87–20.0 μM for the fungi, superior to sanguinarine and cherythrine (two QBAs) and the commercial fungicide azoxystrobin. Part of the compounds were more active than commercial fungicides thiabendazole or carbendazim against F. solani, F. graminearum and C. gloeosporioides. Six compounds with average EC50 of 3.5–5.1 μg/mL possessed very great potential for development of new antifungal agents. SAR found that substitution patterns of the two aryl-rings significantly affect the activity. There exists a complex interaction effect between substituents of the two aryl-rings on the activity. Generally, the presence of electron-withdrawing groups on the C-ring can significantly increase the activity. These findings will be of great importance for the design of more potent antifungal isoquinoline agents.
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20
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Xin H, Ji S, Peng J, Han P, An X, Wang S, Cao B. Isolation and characterisation of a novel antibacterial peptide from a native swine intestinal tract-derived bacterium. Int J Antimicrob Agents 2017; 49:427-436. [DOI: 10.1016/j.ijantimicag.2016.12.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Revised: 12/13/2016] [Accepted: 12/17/2016] [Indexed: 12/18/2022]
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21
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Pradhan AB, Bhuiya S, Haque L, Tiwari R, Das S. Micelle assisted structural conversion with fluorescence modulation of benzophenanthridine alkaloids. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 170:89-96. [PMID: 27419642 DOI: 10.1016/j.saa.2016.07.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2016] [Revised: 07/05/2016] [Accepted: 07/06/2016] [Indexed: 06/06/2023]
Abstract
In this study we have reported the anionic surfactant (Sodium dodecyl sulfate, SDS) driven structural conversion of two benzophenanthridine plant alkaloids namely Chelerythrine (herein after CHL) and Sanguinarine (herein after SANG). Both the alkaloids exist in two forms: the charged iminium and the neutral alkanolamine form. The iminium form is stable at low pH (<6.5) and the alkanolamine form exists at higher pH (>10.1). The fluorescence intensity of the alkanolamine form is much stronger than the iminium form. The iminium form of both the alkaloids remains stable whereas the alkanolamine form gets converted to the iminium form in the SDS micelle environment. The iminium form possesses positive charge and it seems that electrostatic interaction between the positively charged iminium and negatively charged surfactant leads to the stabilization of the iminium form in the Stern layer of the anionic micelle. Whereas the conversion of the alkanolamine form into the iminium form takes place and that can be monitored in naked eye since the iminium form is orange in colour and the alkanolamine form has blue violet emission. Such a detail insight about the photophysical properties of the benzophenanthridine alkaloids would be a valuable addition in the field of alkaloid-surfactant interaction.
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Affiliation(s)
- Ankur Bikash Pradhan
- Department of Chemistry, Jadavpur University, Raja S. C. Mullick Road, Jadavpur, Kolkata 700 032, India.
| | - Sutanwi Bhuiya
- Department of Chemistry, Jadavpur University, Raja S. C. Mullick Road, Jadavpur, Kolkata 700 032, India.
| | - Lucy Haque
- Department of Chemistry, Jadavpur University, Raja S. C. Mullick Road, Jadavpur, Kolkata 700 032, India.
| | - Richa Tiwari
- Department of Chemistry, Jadavpur University, Raja S. C. Mullick Road, Jadavpur, Kolkata 700 032, India.
| | - Suman Das
- Department of Chemistry, Jadavpur University, Raja S. C. Mullick Road, Jadavpur, Kolkata 700 032, India.
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Cao FJ, Zhu LF, Kuang Q, Li XQ, Zhou BH, Yang XJ, Zhou L. Cytotoxic activity, apoptosis induction and structure-activity relationship of 8-OR-2-aryl-3,4-dihydroisoquinolin-2-ium salts as promising anticancer agents. Bioorg Med Chem Lett 2017; 27:55-60. [PMID: 27887841 DOI: 10.1016/j.bmcl.2016.11.031] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2016] [Revised: 10/11/2016] [Accepted: 11/12/2016] [Indexed: 01/28/2023]
Abstract
As our continuing research, a series of 2-aryl-8-OR-3,4-dihydroisoquinolin-2-ium bromides were evaluated for cytotoxic activity on cancer cells and apoptosis induction in the present study. SAR was derived also. Among them, 23 compounds showed the higher cytotoxicity on MKN-45 cells with IC50 values of 1.99-11.3μM than a standard anticancer drug cis-platinum (IC50=11.4μM) or their natural model compound chelerythrine (IC50=12.7μM); 16 compounds possessed the medium to high activity on NB4 cells with IC50 values of 1.67-4.62μM. SAR analysis showed that both substitution patterns of the N-aromatic ring and the type of 8-OR significantly impact the activity. AO/EB staining and flow cytometry analysis with Annexin V/PI double staining showed that the compounds were able to induce apoptosis in a concentration-dependent manner. The results above suggested that the title compounds are a class of promising compounds for the development of new anti-cancer drugs.
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Affiliation(s)
- Fang-Jun Cao
- College of Science, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Li-Fei Zhu
- College of Science, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Qian Kuang
- College of Science, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Xing-Qiang Li
- College of Science, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Bo-Hang Zhou
- College of Science, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Xin-Juan Yang
- College of Science, Northwest A&F University, Yangling, Shaanxi 712100, China.
| | - Le Zhou
- College of Science, Northwest A&F University, Yangling, Shaanxi 712100, China.
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Walton JC. Synthetic Strategies for 5- and 6-Membered Ring Azaheterocycles Facilitated by Iminyl Radicals. Molecules 2016; 21:molecules21050660. [PMID: 27213311 PMCID: PMC6273063 DOI: 10.3390/molecules21050660] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Revised: 05/11/2016] [Accepted: 05/16/2016] [Indexed: 01/09/2023] Open
Abstract
The totality of chemical space is so immense that only a small fraction can ever be explored. Computational searching has indicated that bioactivity is associated with a comparatively small number of ring-containing structures. Pyrrole, indole, pyridine, quinoline, quinazoline and related 6-membered ring-containing aza-arenes figure prominently. This review focuses on the search for fast, efficient and environmentally friendly preparative methods for these rings with specific emphasis on iminyl radical-mediated procedures. Oxime derivatives, particularly oxime esters and oxime ethers, are attractive precursors for these radicals. Their use is described in conventional thermolytic, microwave-assisted and UV-vis based preparative procedures. Photoredox-catalyzed protocols involving designer oxime ethers are also covered. Choice can be made amongst these synthetic strategies for a wide variety of 5- and 6-membered ring heterocycles including phenanthridine and related aza-arenes. Applications to selected natural products and bioactive molecules, including trispheridine, vasconine, luotonin A and rutaecarpine, are included.
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Affiliation(s)
- John C Walton
- University of St. Andrews, EaStCHEM School of Chemistry, St. Andrews, Fife KY16 9ST, UK.
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24
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Zhu LF, Hou Z, Zhou K, Tong ZB, Kuang Q, Geng HL, Zhou L. Synthesis, bioactivity and structure-activity relationships of new 2-aryl-8-OR-3,4-dihydroisoquinolin-2-iums salts as potential antifungal agents. Bioorg Med Chem Lett 2016; 26:2413-2417. [PMID: 27072907 DOI: 10.1016/j.bmcl.2016.04.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2016] [Revised: 03/30/2016] [Accepted: 04/01/2016] [Indexed: 11/19/2022]
Abstract
As our continuing research on antifungal dihydroisoquinolin-2-ium salts, forty 2-aryl-8-OR-3,4-dihydroisoquinolin-2-ium bromides were synthesized and characterized by spectroscopic analysis. By using the mycelium growth rate method, the compounds were evaluated for antifungal activity against three plant pathogenic fungi and structure-activity relationships (SAR) were derived. The vast majority of the compounds displayed the medium to high activity with inhibition rates of 50-100% at 150μM. About half of the compounds were more active than their natural model compounds sanguinarine and chelerythrine for all the fungi, and part or most of them were more active than positive drugs thiabendazole and azoxystrobin. SAR analysis showed that both substitution patterns of the C-ring and the type of 8-OR group significantly influenced the activity. Thus, a series of new title compounds with excellent antifungal potency emerged.
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Affiliation(s)
- Li-Fei Zhu
- College of Science, Northwest A&F University, Yangling 712100, Shaanxi Province, PR China
| | - Zhe Hou
- College of Science, Northwest A&F University, Yangling 712100, Shaanxi Province, PR China
| | - Kun Zhou
- College of Science, Northwest A&F University, Yangling 712100, Shaanxi Province, PR China
| | - Zong-Bo Tong
- College of Life Science, Northwest A&F University, Yangling 712100, Shaanxi Province, PR China
| | - Qian Kuang
- College of Science, Northwest A&F University, Yangling 712100, Shaanxi Province, PR China
| | - Hui-Ling Geng
- College of Science, Northwest A&F University, Yangling 712100, Shaanxi Province, PR China.
| | - Le Zhou
- College of Science, Northwest A&F University, Yangling 712100, Shaanxi Province, PR China.
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25
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Hou Z, Zhu LF, Yu XC, Sun MQ, Miao F, Zhou L. Design, Synthesis, and Structure--Activity Relationship of New 2-Aryl-3,4-dihydro-β-carbolin-2-ium Salts as Antifungal Agents. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:2847-54. [PMID: 27004437 DOI: 10.1021/acs.jafc.6b00505] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Twenty-two 2-aryl-9-methyl-3,4-dihydro-β-carbolin-2-ium bromides along with four 9-demethylated derivatives were synthesized and characterized by spectroscopic analysis. By using the mycelium growth rate method, the compounds were evaluated for antifungal activities in vitro against six plant pathogenic fungi, and structure-activity relationships (SAR) were derived. Almost all of the compounds showed obvious inhibition activity on each of the fungi at 150 μM. For all of the fungi, 10 of the compounds showed average inhibition rates of >80% at 150 μM, and most of their EC50 values were in the range of 2.0-30.0 μM. SAR analysis showed that the substitution pattern of the N-aryl ring significantly influences the activity; N9-alkylation improves the activity, whereas aromatization of ring-C reduces the activity. It was concluded that the present research provided a series of new 2-aryl-9-alkyl-3,4-dihydro-β-carbolin-2-iums with excellent antifungal potency and structure optimization design for the development of new carboline antifungal agents.
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Affiliation(s)
- Zhe Hou
- College of Science and ‡College of Life Science, Northwest A&F University , Yangling 712100, Shaanxi Province, People's Republic of China
| | - Li-Fei Zhu
- College of Science and ‡College of Life Science, Northwest A&F University , Yangling 712100, Shaanxi Province, People's Republic of China
| | - Xin-chi Yu
- College of Science and ‡College of Life Science, Northwest A&F University , Yangling 712100, Shaanxi Province, People's Republic of China
| | - Ma-Qiang Sun
- College of Science and ‡College of Life Science, Northwest A&F University , Yangling 712100, Shaanxi Province, People's Republic of China
| | - Fang Miao
- College of Science and ‡College of Life Science, Northwest A&F University , Yangling 712100, Shaanxi Province, People's Republic of China
| | - Le Zhou
- College of Science and ‡College of Life Science, Northwest A&F University , Yangling 712100, Shaanxi Province, People's Republic of China
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Sandor R, Midlik A, Sebrlova K, Dovrtelova G, Noskova K, Jurica J, Slaninova I, Taborska E, Pes O. Identification of metabolites of selected benzophenanthridine alkaloids and their toxicity evaluation. J Pharm Biomed Anal 2016; 121:174-180. [DOI: 10.1016/j.jpba.2016.01.024] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Revised: 01/11/2016] [Accepted: 01/12/2016] [Indexed: 11/24/2022]
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Further Study on Chemical Constituents of Parnassia wightiana Wall: Four New Dihydro-β-agarofuran Sesquiterpene Polyesters. Int J Mol Sci 2015; 16:9119-33. [PMID: 25915027 PMCID: PMC4463581 DOI: 10.3390/ijms16059119] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2015] [Revised: 04/14/2015] [Accepted: 04/15/2015] [Indexed: 11/23/2022] Open
Abstract
Four new (1–4), along with six known (5–10) dihydro-β-agarofuran sesquiterpene polyesters were isolated from the whole plants of Parnassia wightiana. The new compounds were structurally elucidated through spectroscopic analysis including UV (Ultraviolet Spectrum), IR (Infrared Spectrum), 1H-NMR (1Hydrogen-Nuclear Magnetic Resonance), 13C-NMR (13Carbon-Nuclear Magnetic Resonance), DEPT (Distortionless Enhancement by Polarization Transfer), 1H-1H COSY (1H-1H Correlation Spectroscopy), HSQC (Heteronuclear Single Quantum Coherence), HMBC (Heteronuclear Multiple Bond Correlation), NOESY (Nuclear Overhauser Enhancement Spectroscopy) and HR-MS (High Resolution Mass Specttrum) and their absolute configurations were proposed by comparison of NOESY spectra and specific optical rotations with those of known compounds and biosynthesis grounds. Compound 2 is the first sesquiterpene alkaloid isolated from this plant. New compounds 1–4 exhibited some cytotoxic activities against NB4, MKN-45 and MCF-7 cells at 20 μM and of which 4 showed the highest activity against NB4 and MKN-45 cells with inhibition rates of 85.6% and 30.5%, respectively.
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Yang R, Gao ZF, Zhao JY, Li WB, Zhou L, Miao F. New class of 2-aryl-6-chloro-3,4-dihydroisoquinolinium salts as potential antifungal agents for plant protection: synthesis, bioactivity and structure-activity relationships. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2015; 63:1906-1914. [PMID: 25645055 DOI: 10.1021/jf505609z] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Thirty-four new 2-aryl-6-chloro-3,4-dihydroisoquinolin-2-ium bromides were synthesized, and their structures were elucidated by spectroscopic analysis. Antifungal activities against Alternaria alternate, Curvularia lunata and Valsa mali were evaluated by the mycelium linear growth rate method. SAR was discussed also. All compounds showed some activity against each of the fungi at 25 μg/mL. Compared to azoxystrobin, a commercial fungicide, 31 out of 34 test compounds showed higher inhibition rates against C. lunata and 10 were more effective against A. alternate and V. mali. Compounds 5-4, 5-2 and 5-34 showed the highest activity against A. alternate (EC50 = 10.3 μg/mL), C. lunata (EC50 = 4.6 μg/mL) and V. mali (EC50 = 3.9 μg/mL), respectively, superior to azoxystrobin (EC50 = 12.8, 71.9, 37.2 μg/mL). Compound 5-4 displayed good activities against each of the fungi with EC50 of 10.3, 4.7, and 18.0 μg/mL while 5-34 displayed excellent activities against V. mali (EC50 = 3.9 μg/mL) and C. lunata (EC50 = 5.8 μg/mL). The SAR showed that the type and position of substituents on the C-ring had significant effects on the activity. Generally, the presence of 2'-F, 4'-F or 2'-CH3 could significantly improve the activities, whereas OH, OMe, NO2 or CF3 groups decreased the activities. Thus, it was concluded that the present research provided a new series of 2-aryl-6-chloro-3,4-dihydroisoquinolin-2-iums with excellent antifungal potency, and the results were of importance for the structure optimization design, synthesis and development of more potent isoquinoline antifungal agents.
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Affiliation(s)
- Rui Yang
- College of Science, Northwest A&F University , Yangling 712100, Shaanxi Province People's Republic of China
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