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Chen Z, Li Z, Xu R, Xie Y, Li D, Zhao Y. Design, Synthesis, and In Vivo Evaluation of Isosteviol Derivatives as New SIRT3 Activators with Highly Potent Cardioprotective Effects. J Med Chem 2024; 67:6749-6768. [PMID: 38572607 DOI: 10.1021/acs.jmedchem.4c00345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2024]
Abstract
Cardiovascular diseases (CVDs) persist as the predominant cause of mortality, urging the exploration of innovative pharmaceuticals. Mitochondrial dysfunction stands as a pivotal contributor to CVDs development. Sirtuin 3 (SIRT3), a prominent mitochondrial deacetylase known for its crucial role in protecting mitochondria against damage and dysfunction, has emerged as a promising therapeutic target for CVDs treatment. Utilizing isosteviol, a natural ent-beyerene diterpenoid, 24 derivatives were synthesized and evaluated in vivo using a zebrafish model, establishing a deduced structure-activity relationship. Among these, derivative 5v exhibited significant efficacy in doxorubicin-induced cardiomyopathy in zebrafish and murine models. Subsequent investigations revealed that 5v selectively elevated SIRT3 expression, leading to the upregulation of SOD2 and OPA1 expression, effectively preventing mitochondrial dysfunction, mitigating oxidative stress, and preserving cardiomyocyte viability. As a novel structural class of SIRT3 activators with robust therapeutic effects, 5v emerges as a promising candidate for further drug development.
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Affiliation(s)
- Zhenyu Chen
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China
| | - Zhiyin Li
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China
| | - Ruilong Xu
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China
| | - Yufeng Xie
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China
| | - Dehuai Li
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China
| | - Yu Zhao
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China
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Bai X, Qu H, Zhang J, Li L, Zhang C, Li S, Li G. Effect of steviol glycosides as natural sweeteners on glucose metabolism in adult participants. Food Funct 2024; 15:3908-3919. [PMID: 38512280 DOI: 10.1039/d3fo04695h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/22/2024]
Abstract
Steviol glycosides (SGs) are recognized as safe natural sweeteners; however, evidence from randomized controlled trials (RCTs) showed an inconclusive effect of SGs on glucose metabolism in adult participants. We aimed to conduct a systematic review and meta-analysis of RCTs to assess the effect of SGs on glucose metabolism. We systematically searched PubMed, Web of Science and EMBASE to include eligible RCTs. Our primary outcomes were differences between SGs and the control group with respect to changes in blood glucose from the baseline to the end of intervention (including fasting blood glucose [FBG], and HbA1c measurements). A random-effects meta-analysis was conducted for data synthesis to calculate the pooled mean difference (MD). There were twelve RCTs included for analyses with a total of 871 participants (48% females). A significant effect of SGs on FBG (MD = -4.10 mg dl-1, 95% CI -6.55 to -1.65) was found, while no significant difference in HbA1c (MD = 0.01%, 95% CI -0.12% to 0.13%) was observed between SGs and controls. The whole quality of evidence was rated as low. Subgroup analyses demonstrated favorable effects of SGs on FBG in participants aged ≤50 years, those without diabetes mellitus (DM) or hypertension at the baseline, and overweight and obese adults. Sensitivity analyses yielded results largely similar to the main findings. To conclude, SGs are found to produce significant improvement in glucose metabolism in adult participants when compared with the control. More evidence is required to further clarify and support the benefit of SGs as a sugar substitute for glucose metabolism.
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Affiliation(s)
- Xuerui Bai
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, Guangzhou, China
| | - Hongying Qu
- Center for Clinical Epidemiology and Methodology (CCEM), Guangdong Second Provincial General Hospital, Guangzhou, China
| | - Jingyi Zhang
- Center for Clinical Epidemiology and Methodology (CCEM), Guangdong Second Provincial General Hospital, Guangzhou, China
| | - Likang Li
- Center for Clinical Epidemiology and Methodology (CCEM), Guangdong Second Provincial General Hospital, Guangzhou, China
| | - Changfa Zhang
- Center for Clinical Epidemiology and Methodology (CCEM), Guangdong Second Provincial General Hospital, Guangzhou, China
| | - Shuai Li
- Center for Clinical Epidemiology and Methodology (CCEM), Guangdong Second Provincial General Hospital, Guangzhou, China
| | - Guowei Li
- Center for Clinical Epidemiology and Methodology (CCEM), Guangdong Second Provincial General Hospital, Guangzhou, China
- Father Sean O'Sullivan Research Centre, St Joseph's Healthcare Hamilton, Hamilton, ON, Canada
- Department of Health Research Methods, Evidence, and Impact (HEI), McMaster University, Hamilton, ON, Canada.
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Liu S, Wang X, Sun X, Wei B, Jiang Z, Ouyang Y, Ozaki T, Yu M, Liu Y, Zhang R, Zhu Y. Oridonin inhibits bladder cancer survival and immune escape by covalently targeting HK1. Phytomedicine 2024; 126:155426. [PMID: 38367425 DOI: 10.1016/j.phymed.2024.155426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Revised: 01/16/2024] [Accepted: 02/06/2024] [Indexed: 02/19/2024]
Abstract
BACKGROUND Hexokinase I (HK1) is highly expressed in a variety of malignancies, regulates glycolytic pathway in cancer cells, and thus considered to be one of the promising molecular targets for cancer therapy. Nonetheless, the development of a specific inhibitor against HK1 remains elusive. PURPOSE This study aims to elucidate the mechanism by which oridonin inhibits the proliferation and immune evasion of bladder cancer cells, specifically through the suppression of HK1. METHODS To examine the mechanisms by which oridonin directly binds to cysteines of HK1 and inhibits bladder cancer growth, this study utilized a variety of methods. These included the Human Proteome Microarray, Streptavidin-agarose affinity assay, Biolayer Interferometry (BLI) ainding analysis, Mass Spectrometry, Cellular Thermal Shift Assay, Extracellular Acidification Rate measurement, and Xenotransplant mouse models. RESULTS As indicated by our current findings, oridonin forms a covalent bond with Cys-813, located adjacently to glucose-binding domain of HK1. This suppresses the enzymatic activity of HK1, leading to an effective reduction of glycolysis, which triggers cell death via apoptosis in cells derived from human bladder cancer. Significantly, oridonin also inhibits lactate-induced PD-L1 expression in bladder cancer. Furthermore, pairing oridonin with a PD-L1 inhibitor amplifies the cytotoxicity of CD8+ T cells against bladder cancer. CONCLUSION This research strongly suggests that oridonin serves as a covalent inhibitor of HK1. Moreover, it indicates that functional cysteine residue of HK1 could operate as viable targets for selective inhibition. Consequently, oridonin exhibits substantial potential for the evolution of anti-cancer agents targeting the potential therapeutic target HK1 via metabolism immunomodulation.
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Affiliation(s)
- Shuangjie Liu
- Department of Urology, Affiliated Zhongda Hospital of Southeast University, Nanjing, China; Surgical Research Center, Institute of Urology, Southeast University Medical School, Nanjing, China; Department of Urology, The First Hospital of China Medical University, Shenyang 110001, China
| | - Xialu Wang
- School of Medical Devices, Shenyang Pharmaceutical University, Shenyang, China
| | - Xiaojie Sun
- School of Life Science and Bio-Pharmaceutics, Shenyang Pharmaceutical University, Shenyang, China
| | - Baojun Wei
- Department of Urology, The First Hospital of China Medical University, Shenyang 110001, China
| | - Zhaowei Jiang
- Department of Urology, The First Hospital of China Medical University, Shenyang 110001, China
| | - Yongze Ouyang
- Department of Urology, The First Hospital of China Medical University, Shenyang 110001, China
| | - Toshinori Ozaki
- Laboratory of DNA Damage Signaling, Chiba Cancer Center Research Institute, Chiba, Japan
| | - Meng Yu
- Department of Laboratory Animal Science, China Medical University. Key Laboratory of Transgenetic Animal Research. No. 77 Puhe Road, Shenyang North New Area, Shenyang, 110122, Liaoning Province, China
| | - Yongxiang Liu
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Rong Zhang
- School of Life Science and Bio-Pharmaceutics, Shenyang Pharmaceutical University, Shenyang, China.
| | - Yuyan Zhu
- Department of Urology, The First Hospital of China Medical University, Shenyang 110001, China.
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Wang G, Ding AX, Qin GQ, Chen T, Hu XG, Zheng L, Du GX, Wang W, Xuan L. Dimeric ent-kauranoids isolated from Isodon japonica var. Glaucocalyx and their anti-inflammatory activities. Fitoterapia 2024; 174:105840. [PMID: 38296167 DOI: 10.1016/j.fitote.2024.105840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 12/21/2023] [Accepted: 01/27/2024] [Indexed: 02/05/2024]
Abstract
The phytochemical investigation of the aerial parts of Isodon japonica var. glaucocalyx afforded four undescribed (glaucocalyxin O-R, 1-4) and six known ent-kauranoids (5-10). Their structures were established using NMR and MS measurements. Compounds 1 and 2 are dimeric ent-kaurane-type diterpenoids. Moreover, the plausible biogenetic pathways for compounds 1 and 2 were proposed as Michael addition between two monomers. Eight compounds were assayed for their anti-inflammatory activity by evaluating NO production in LPS-induced RAW 267.4 cells, and compounds 7, 8 and 9 exhibited relatively remarkable anti-inflammatory activities at 10 μM.
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Affiliation(s)
- Ge Wang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Shanghai 201203, PR China; University of Chinese Academy of Sciences, No.19A Yuquan Road, Beijing 100049, PR China
| | - Ao-Xue Ding
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Shanghai 201203, PR China; University of Chinese Academy of Sciences, No.19A Yuquan Road, Beijing 100049, PR China
| | - Guo-Qing Qin
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Shanghai 201203, PR China; University of Chinese Academy of Sciences, No.19A Yuquan Road, Beijing 100049, PR China
| | - Tong Chen
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Shanghai 201203, PR China; School of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing 210029, PR China
| | - Xiang-Gang Hu
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Shanghai 201203, PR China; University of Chinese Academy of Sciences, No.19A Yuquan Road, Beijing 100049, PR China
| | - Liu Zheng
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Shanghai 201203, PR China; University of Chinese Academy of Sciences, No.19A Yuquan Road, Beijing 100049, PR China
| | - Gao-Xiang Du
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Shanghai 201203, PR China; School of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing 210029, PR China
| | - Wenqiong Wang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Shanghai 201203, PR China; University of Chinese Academy of Sciences, No.19A Yuquan Road, Beijing 100049, PR China.
| | - Lijiang Xuan
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Shanghai 201203, PR China; University of Chinese Academy of Sciences, No.19A Yuquan Road, Beijing 100049, PR China.
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5
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Badalamenti N, Maggio A, Fontana G, Bruno M, Lauricella M, D’Anneo A. Synthetic Derivatives of Natural ent-Kaurane Atractyligenin Disclose Anticancer Properties in Colon Cancer Cells, Triggering Apoptotic Cell Demise. Int J Mol Sci 2024; 25:3925. [PMID: 38612735 PMCID: PMC11011390 DOI: 10.3390/ijms25073925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 03/29/2024] [Accepted: 03/30/2024] [Indexed: 04/14/2024] Open
Abstract
The antitumor activity of different ent-kaurane diterpenes has been extensively studied. Several investigations have demonstrated the excellent antitumor activity of synthetic derivatives of the diterpene atractyligenin. In this research, a series of new synthetic amides and their 15,19-di-oxo analogues obtained from atractyligenin by modifying the C-2, C-15, and C-19 positions were designed in order to dispose of a set of derivatives with different substitutions at the amidic nitrogen. Using different concentrations of the obtained compounds (10-300 μM) a reduction in cell viability of HCT116 colon cancer cells was observed at 48 h of treatment. All the di-oxidized compounds were more effective than their alcoholic precursors. The di-oxidized compounds had already reduced the viability of two colon cancer cells (HCT116 and Caco-2) at 24 h when used at low doses (2.5-15 μM), while they turned out to be poorly effective in differentiated Caco-2 cells, a model of polarized enterocytes. The data reported here provide evidence that di-oxidized compounds induced apoptotic cell death, as demonstrated by the appearance of condensed and fragmented DNA in treated cells, as well as the activation of caspase-3 and fragmentation of its target PARP-1.
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Affiliation(s)
- Natale Badalamenti
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Viale delle Scienze, 90128 Palermo, Italy; (A.M.); (G.F.); (M.B.); (A.D.)
- NBFC—National Biodiversity Future Center, Piazza Marina 60, 90133 Palermo, Italy
| | - Antonella Maggio
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Viale delle Scienze, 90128 Palermo, Italy; (A.M.); (G.F.); (M.B.); (A.D.)
- NBFC—National Biodiversity Future Center, Piazza Marina 60, 90133 Palermo, Italy
| | - Gianfranco Fontana
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Viale delle Scienze, 90128 Palermo, Italy; (A.M.); (G.F.); (M.B.); (A.D.)
- NBFC—National Biodiversity Future Center, Piazza Marina 60, 90133 Palermo, Italy
| | - Maurizio Bruno
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Viale delle Scienze, 90128 Palermo, Italy; (A.M.); (G.F.); (M.B.); (A.D.)
- NBFC—National Biodiversity Future Center, Piazza Marina 60, 90133 Palermo, Italy
- Centro Interdipartimentale di Ricerca “Riutilizzo Bio-Based Degli Scarti da Matrici Agroalimentari” (RIVIVE), University of Palermo, Viale delle Scienze, 90128 Palermo, Italy
| | - Marianna Lauricella
- Department of Biomedicine, Neurosciences and Advanced Diagnostics (BIND), Institute of Biochemistry, University of Palermo, Via del Vespro 129, 90127 Palermo, Italy;
| | - Antonella D’Anneo
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Viale delle Scienze, 90128 Palermo, Italy; (A.M.); (G.F.); (M.B.); (A.D.)
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6
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Li M, Wang C, Ye S, Li W, Zhang Y, Yan J, Wang Y, Yang H, Wu Y, Zhang Y, Zhang H, Miao Z. Discovery of novel oridonin sulfamide derivatives as potent NLRP3 inhibitors by a visible-light photocatalysis-enabled peripheral editing. Bioorg Med Chem Lett 2024; 99:129621. [PMID: 38244941 DOI: 10.1016/j.bmcl.2024.129621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 01/07/2024] [Accepted: 01/15/2024] [Indexed: 01/22/2024]
Abstract
The progress of organicsyntheticmethod can promote late-stage lead compound modification and novel active compound discovery. Molecular editing technology in the field of organic synthesis, including peripheral and skeletal editing, facilitates rapid access to molecular diversity of a lead compound. Peripheral editing of CH bond activation is gradually used in lead optimization to afford novel active scaffolds and chemical space exploitation. To develop oridonin derivatives with high anti-inflammatory potency, novel oridonin sulfamides had been designed and synthesized by a scaffoldhopping strategy based on a visible-light photocatalysis peripheral editing. All novel compounds revealed measurable inhibition of IL-1β and low cytotoxicity in THP-1 cells. The docking study indicated that the best active compound ZM640 was accommodated in thebinding site of NLRP3 with two hydrogen bond interaction. These preliminary results confirm that α, β-unsaturated carbonyl of oridonin is not essential for NLRP3 inhibitory effect. This new oridonin scaffold has its potential to be further developed as a promising class of NLRP3 inhibitors.
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Affiliation(s)
- Mochenxuan Li
- School of Pharmacy, The Second Military Medical University, 325 Guohe Road, Shanghai 200433, People's Republic of China; Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism, Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, People's Republic of China
| | - Chuanhao Wang
- School of Pharmacy, The Second Military Medical University, 325 Guohe Road, Shanghai 200433, People's Republic of China; School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, 200 Xiaolingwei Road, Nanjing 210094, People's Republic of China
| | - Shuang Ye
- Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism, Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, People's Republic of China
| | - Wei Li
- Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism, Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, People's Republic of China
| | - Yanming Zhang
- School of Pharmacy, The Second Military Medical University, 325 Guohe Road, Shanghai 200433, People's Republic of China
| | - Jianyu Yan
- School of Pharmacy, The Second Military Medical University, 325 Guohe Road, Shanghai 200433, People's Republic of China
| | - Yongchuang Wang
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, 100 Haiquan Road, Shanghai 201418, People's Republic of China
| | - Hang Yang
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, 100 Haiquan Road, Shanghai 201418, People's Republic of China
| | - Yuelin Wu
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, 100 Haiquan Road, Shanghai 201418, People's Republic of China
| | - Yongqiang Zhang
- Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism, Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, People's Republic of China.
| | - Huojun Zhang
- Department of Radiation Oncology, Changhai Hospital, The Second Military Medical University, Shanghai 200433, People's Republic of China.
| | - Zhenyuan Miao
- School of Pharmacy, The Second Military Medical University, 325 Guohe Road, Shanghai 200433, People's Republic of China.
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7
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Biswas P, Kumari A, Modi A, Kumar N. Improvement and regulation of steviol glycoside biosynthesis in Stevia rebaudiana Bertoni. Gene 2024; 891:147809. [PMID: 37722610 DOI: 10.1016/j.gene.2023.147809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 09/13/2023] [Accepted: 09/15/2023] [Indexed: 09/20/2023]
Abstract
Stevia rebaudiana Bertoni is a natural sweetener plant that is progressively used not only for its sweetening properties but also for its medicinal properties. The plant contains steviol glycoside (SG) which is reported to be up to 300 times sweeter than sucrose. The plant is said to have no side effects on human health and has been approved by FDA. On the basis of previous studies and available databases, this review discusses the extensive understanding of the different approaches for enhancements of SG in S. rebaudiana. To improve the SG biosynthesis, application of different stress, elicitors, induction of polyploidy, cell culture, genetic engineering, and transcriptomic approaches have been addressed. A brief discussion about the cloning and characterization of important genes of the metabolic pathway of SG biosynthesis is also discussed along with various metabolic engineering pathways viz. methylerythritol 4- phosphate (MEP) and mevalonate (MVA) pathways. This review paper also discusses the different aspects as well as the effects of various nanoparticles on S. rebaudiana growth and development, as well as SG biosynthesis.
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Affiliation(s)
- Pritom Biswas
- Department of Biotechnology, Central University of South Bihar, Gaya 824236, Bihar, India
| | - Ankita Kumari
- Department of Biotechnology, Central University of South Bihar, Gaya 824236, Bihar, India
| | - Arpan Modi
- Institute of Plant Science, Volcani Center, ARO, Rishon LeZion, Israel
| | - Nitish Kumar
- Department of Biotechnology, Central University of South Bihar, Gaya 824236, Bihar, India.
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8
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Jia XM, Hao H, Zhang Q, Yang MX, Wang N, Sun SL, Yang ZN, Jin YR, Wang J, Du YF. The bioavailability enhancement and insight into the action mechanism of poorly soluble natural compounds from co-crystals preparation: Oridonin as an example. Phytomedicine 2024; 122:155179. [PMID: 37925890 DOI: 10.1016/j.phymed.2023.155179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 10/04/2023] [Accepted: 10/31/2023] [Indexed: 11/07/2023]
Abstract
BACKGROUND Natural bioactive molecules are important sources for the development of new drugs. However, most of them were limited in clinical applications due to their low aqueous solubility and bioavailability. Oridonin (ORI) is a powerful anticancer compound with above characteristics. OBJECTIVE This study aimed to find an effective method to improve the bioavailability of poorly soluble natural compounds, and explore the action mechanisms of them to promote their application. RESULTS In this study, ORI-nicotinamide (NCT) cocrystal was successfully prepared for the first time to overcome the defects of ORI. The solubility and oral bioavailability of cocrystal (COC) increased 1.34 and 1.18 times compared with ORI. Moreover, MTT assay was applied to compare the cytotoxicity of positive control drug sorafenib with ORI and COC. The IC50 values of sorafenib, ORI and COC on HepG2 cells were 7.61, 8.79 and 7.36 nmol·mL-1, which indicated that the cytotoxicity of ORI could be enhanced by cocrystal preparation. The cellular metabolomics was innovatively introduced to gain insight into the difference of cytotoxicity mechanism between ORI and COC. The results showed that there were 78 metabolites with significant differences in content between the two groups, while these differential metabolites were related to 11 metabolic pathways. Among these, glycerophospholipid metabolism and cysteine and methionine metabolism were the significant differential pathways, and the downregulation of PC(14:0/16:1(9z)) and upregulation of homocysteine were the likely main reasons for higher cytotoxicity of COC. CONCLUSIONS This study has presented novel approaches for enhancing the bioavailability and drug efficacy of natural compounds, while also offering fresh insights into the underlying action mechanisms of pharmaceutical cocrystals.
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Affiliation(s)
- Xin-Ming Jia
- Department of Pharmaceutical Analysis, School of Pharmacy, Hebei Medical University, 361 East Zhongshan Road, Shijiazhuang, Hebei 050017, PR China
| | - Han Hao
- Department of Pharmaceutical Analysis, School of Pharmacy, Hebei Medical University, 361 East Zhongshan Road, Shijiazhuang, Hebei 050017, PR China
| | - Qian Zhang
- Department of Pharmaceutical Analysis, School of Pharmacy, Hebei Medical University, 361 East Zhongshan Road, Shijiazhuang, Hebei 050017, PR China
| | - Meng-Xin Yang
- Department of Pharmaceutical Analysis, School of Pharmacy, Hebei Medical University, 361 East Zhongshan Road, Shijiazhuang, Hebei 050017, PR China
| | - Nan Wang
- Department of Pharmaceutical Analysis, School of Pharmacy, Hebei Medical University, 361 East Zhongshan Road, Shijiazhuang, Hebei 050017, PR China
| | - Shi-Lin Sun
- Department of Pharmaceutical Analysis, School of Pharmacy, Hebei Medical University, 361 East Zhongshan Road, Shijiazhuang, Hebei 050017, PR China
| | - Ze-Nan Yang
- Department of Pharmaceutical Analysis, School of Pharmacy, Hebei Medical University, 361 East Zhongshan Road, Shijiazhuang, Hebei 050017, PR China
| | - Yi-Ran Jin
- Department of Clinical Pharmacy, The Second Hospital of Hebei Medical University, 215 West Heping Road, Shijiazhuang, Hebei 050000, PR China.
| | - Jing Wang
- Department of Pharmaceutical Analysis, School of Pharmacy, Hebei Medical University, 361 East Zhongshan Road, Shijiazhuang, Hebei 050017, PR China.
| | - Ying-Feng Du
- Department of Pharmaceutical Analysis, School of Pharmacy, Hebei Medical University, 361 East Zhongshan Road, Shijiazhuang, Hebei 050017, PR China.
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9
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Quinn RJ, Mak T, Littler DR, Rossjohn J, Liu M. Discovery of Anti-SARS-CoV-2 Nsp9 Binders from Natural Products by a Native Mass Spectrometry Approach. J Nat Prod 2023; 86:2630-2637. [PMID: 37993134 DOI: 10.1021/acs.jnatprod.3c00636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2023]
Abstract
The search for effective antiviral agents against SARS-CoV-2 remains a critical global endeavor. In this study, we focused on the viral nucleocapsid protein Nsp9, which is a key player in viral RNA replication and an attractive drug target. Employing a two-pronged approach, an in-house natural product library was screened using native mass spectrometry to identify compounds capable of binding to Nsp9. From the initial screening, apart from the previously reported hit oridonin (protein binding ratio of 0.56 in the initial screening, Kd = 7.2 ± 1.0 μM), we have identified a second Nsp9-interacting compound, the diterpenoid ryanodine, with a protein binding ratio of 0.3 and a Kd of 48.05 ± 5.03 μM. To gain deeper insights into the binding interactions and to explore potential structural requirements, the collision-induced affinity selection mass spectrometry (CIAS-MS) approach allowed us to identify six known oridonin analogues produced by the plant Rabdosia rubescens, each with varying affinities to Nsp9. Native MS validation of their individual binding activities to Nsp9 revealed that all analogues exhibited reduced affinity compared to oridonin. Structural-activity relationship analysis highlighted key functional groups, including 1-OH, 6-OH, 7-OH, and the enone moiety, which are crucial for Nsp9 binding. Combined data from our native mass spectrometry and CIAS-MS approaches provide valuable insights into the molecular interactions between Nsp9 and these compounds.
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Affiliation(s)
- Ronald J Quinn
- Griffith Institute for Drug Discovery, Griffith University, Brisbane, QLD 4111, Australia
| | - Tin Mak
- Griffith Institute for Drug Discovery, Griffith University, Brisbane, QLD 4111, Australia
| | - Dene R Littler
- Infection and Immunity Program & Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, Clayton 3800, Victoria, Australia
| | - Jamie Rossjohn
- Infection and Immunity Program & Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, Clayton 3800, Victoria, Australia
- Institute of Infection and Immunity, Cardiff University School of Medicine, Heath Park, Cardiff CF14 4XN, United Kingdom
| | - Miaomiao Liu
- Griffith Institute for Drug Discovery, Griffith University, Brisbane, QLD 4111, Australia
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10
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Myint KZ, Zhou Z, Shi Q, Chen J, Dong X, Xia Y. Stevia Polyphenols, Their Antimicrobial and Anti-Inflammatory Properties, and Inhibitory Effect on Digestive Enzymes. Molecules 2023; 28:7572. [PMID: 38005293 PMCID: PMC10673113 DOI: 10.3390/molecules28227572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 11/08/2023] [Accepted: 11/09/2023] [Indexed: 11/26/2023] Open
Abstract
Polyphenols from stevia leaves (PPSs) are abundant byproducts from steviol glycoside production, which have been often studied as raw extracts from stevia extracts for their bioactivities. Herein, the PPSs rich in isochlorogenic acids were studied for their antimicrobial and anti-inflammatory properties, as well as their inhibitory effects on digestive enzymes. The PPSs presented stronger antibacterial activity against E. coli, S. aureus, P. aeruginosa, and B. subtilis than their antifungal activity against M. furfur and A. niger. Meanwhile, the PPSs inhibited four cancer cells by more than 60% based on their viability, in a dose-dependent manner. The PPSs presented similar IC50 values on the inhibition of digestive enzyme activities compared to epigallocatechin gallate (EGCG), but had weaker anti-inflammatory activity. Therefore, PPSs could be a potential natural alternative to antimicrobial agents. This is the first report on the bioactivity of polyphenols from stevia rebaudiana (Bertoni) leaves excluding flavonoids, and will be of benefit for understanding the role of PPSs and their application.
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Affiliation(s)
- Khaing Zar Myint
- State Key Laboratory of Food Science and Resource, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, China
- Key Laboratory of Synthetic and Biological Colloids (Ministry of Education), School of Chemical and Materials Engineering, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, China
| | - Zhuoyu Zhou
- State Key Laboratory of Food Science and Resource, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, China
- Key Laboratory of Synthetic and Biological Colloids (Ministry of Education), School of Chemical and Materials Engineering, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, China
| | - Qiandai Shi
- State Key Laboratory of Food Science and Resource, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, China
- Key Laboratory of Synthetic and Biological Colloids (Ministry of Education), School of Chemical and Materials Engineering, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, China
| | - Junming Chen
- State Key Laboratory of Food Science and Resource, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, China
| | - Xinyu Dong
- State Key Laboratory of Food Science and Resource, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, China
| | - Yongmei Xia
- State Key Laboratory of Food Science and Resource, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, China
- Key Laboratory of Synthetic and Biological Colloids (Ministry of Education), School of Chemical and Materials Engineering, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, China
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11
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Gao S, Tan H, Li D. Oridonin suppresses gastric cancer SGC-7901 cell proliferation by targeting the TNF-alpha/androgen receptor/TGF-beta signalling pathway axis. J Cell Mol Med 2023; 27:2661-2674. [PMID: 37431884 PMCID: PMC10494293 DOI: 10.1111/jcmm.17841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 06/20/2023] [Accepted: 06/28/2023] [Indexed: 07/12/2023] Open
Abstract
Statistics provided by GLOBOCAN list gastric cancer as the sixth most common, with a mortality ranking of third highest for the year 2020. In China, a herb called Rabdosia rubescens (Hemsl.) H.Hara, has been used by local residents for the treatment of digestive tract cancer for hundreds of years. Oridonin, the main ingredient of the herb, has a curative effect for gastric cancer, but the mechanism has not been previously clarified. This study mainly aimed to investigate the role of TNF-alpha/Androgen receptor/TGF-beta signalling pathway axis in mediating the proliferation inhibition of oridonin on gastric cancer SGC-7901 cells. MTT assay, cell morphology observation assay and fluorescence assay were adopted to study the efficacy of oridonin on cell proliferation. The network pharmacology was used to predict the pathway axis regulated by oridonin. Western blot assay was adopted to verify the TNF-α/Androgen receptor/TGF-β signalling pathway axis regulation on gastric cancer by oridonin. The results showed Oridonin could inhibit the proliferation of gastric cancer cells, change cell morphology and cause cell nuclear fragmentation. A total of 11signaling pathways were annotated by the network pharmacology, among them, Tumour necrosis factor alpha (TNF-α) signalling pathway, androgen receptor (AR) signalling pathway and transforming growth factor (TGF-β) signalling pathway account for the largest proportion. Oridonin can regulate the protein expression of the three signalling pathways, which is consistent with the results predicted by network pharmacology. These findings indicated that oridonin can inhibit the proliferation of gastric cancer SGC-7901 cells by regulating the TNF-α /AR /TGF-β signalling pathway axis.
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Affiliation(s)
- Shiyong Gao
- Drug Engineering and Technology Research CenterHarbin University of CommerceHarbinChina
- Heilongjiang Provincial Key Laboratory of Tumor Prevention and Antitumor DrugsHarbinChina
| | - Huixin Tan
- Department of PharmacyFourth Affiliated Hospital of Harbin Medicine UniversityHarbinChina
| | - Dan Li
- Drug Engineering and Technology Research CenterHarbin University of CommerceHarbinChina
- Heilongjiang Provincial Key Laboratory of Tumor Prevention and Antitumor DrugsHarbinChina
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12
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Hwang TL, Chang CH. Oridonin enhances cytotoxic activity of natural killer cells against lung cancer. Int Immunopharmacol 2023; 122:110669. [PMID: 37480753 DOI: 10.1016/j.intimp.2023.110669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 07/07/2023] [Accepted: 07/16/2023] [Indexed: 07/24/2023]
Abstract
BACKGROUND Oridonin is a Chinese herbal medicine exhibiting anti-tumor properties; however, its immune modulation capacity has yet to be elucidated. Our objective in this study was to determine whether oridonin enhances the anti-tumor activity of natural killer (NK) cells against lung cancer cells. METHODS LDH-releasing assays were used to investigate the effects of oridonin on NK-92MI cell activity against lung cancer cells. Flow cytometry and real-time PCR were used to examine the effects of oridonin on degranulation markers, cytotoxic factors, activating receptors on NK-92MI cells, and ligands in lung cancer cells. Western blot analysis provided insight into the mechanisms underlying the observed effects. RESULTS Oridonin enhanced the cytotoxic effects of NK-92MI cells against A549 lung cancer cells. This effect involved upregulating the expression of the degranulation marker CD107a and IFN-γ as well as activating receptors on NK cells and their ligand MICA/B. Oridonin also inhibited STAT3 phosphorylation in A549 cells and NK-92MI cells. A lung cancer mouse model confirmed the anti-tumor effects of oridonin and NK-92MI cells, wherein both treatments alone suppressed tumor growth. Oridonin was also shown to have a synergistic effect on the anti-tumor activity of NK-92MI cells. CONCLUSIONS The ability of oridonin to enhance the cytotoxic effects of NK cells indicates its potential as a novel therapeutic agent for the treatment of lung cancer.
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Affiliation(s)
- Tsong-Long Hwang
- Research Center for Chinese Herbal Medicine, Graduate Institute of Health Industry Technology, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan 333, Taiwan; Graduate Institute of Natural Products, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan; Department of Anesthesiology, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan; Department of Chemical Engineering, Ming Chi University of Technology, New Taipei City, 243, Taiwan.
| | - Chuan-Hsin Chang
- Research Center for Chinese Herbal Medicine, Graduate Institute of Health Industry Technology, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan 333, Taiwan.
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13
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Zou J, Ye J, Zhao C, Zhang J, Liu Y, Pan L, He K, Zhang H. Guidongnins I-J: Two New 6,7- seco-7,20-Olide- ent-kaurene Diterpenes with Unusual Structures from Isodon rubescens. Int J Mol Sci 2023; 24:13451. [PMID: 37686256 PMCID: PMC10488066 DOI: 10.3390/ijms241713451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 08/24/2023] [Accepted: 08/28/2023] [Indexed: 09/10/2023] Open
Abstract
Two undescribed ent-kaurene diterpenes, named guidongnins I (1) and J (2), were isolated from the medicinal plant Isodon rubescens. Compound 1 was determined to contain an unprecedented 23 carbons in the skeleton by bearing an extra isopropyl group at C-17 out of the diterpenoid parent structure, and compound 2 was the first example of 6,7-seco-7,20-olide-ent-kaurenes with two fused-tetrahydrofuran rings formed between C-6 and C-19/C-20 through oxygen bridges. Their structures, including their absolute configurations, were determined using the analyses of the spectroscopic and X-ray diffraction data. Guidongnins I (1) and J (2) were assessed for their anti-cancer activities against the growth of various cancer cell lines, and 2 displayed cytotoxic potency against HepG2 at IC50 27.14 ± 3.43 μM.
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Affiliation(s)
- Juan Zou
- School of Pharmacy, Guizhou University of Traditional Chinese Medicine, 4 Dongqing Road, Guiyang 550025, China; (J.Z.); (J.Y.); (C.Z.); (J.Z.); (Y.L.); (L.P.)
| | - Jianghai Ye
- School of Pharmacy, Guizhou University of Traditional Chinese Medicine, 4 Dongqing Road, Guiyang 550025, China; (J.Z.); (J.Y.); (C.Z.); (J.Z.); (Y.L.); (L.P.)
| | - Chenliang Zhao
- School of Pharmacy, Guizhou University of Traditional Chinese Medicine, 4 Dongqing Road, Guiyang 550025, China; (J.Z.); (J.Y.); (C.Z.); (J.Z.); (Y.L.); (L.P.)
- School of Chinese Medicine, Hong Kong Baptist University, 7 Baptist University Road, Hong Kong SAR 999077, China
| | - Jingjie Zhang
- School of Pharmacy, Guizhou University of Traditional Chinese Medicine, 4 Dongqing Road, Guiyang 550025, China; (J.Z.); (J.Y.); (C.Z.); (J.Z.); (Y.L.); (L.P.)
| | - Yahua Liu
- School of Pharmacy, Guizhou University of Traditional Chinese Medicine, 4 Dongqing Road, Guiyang 550025, China; (J.Z.); (J.Y.); (C.Z.); (J.Z.); (Y.L.); (L.P.)
| | - Lutai Pan
- School of Pharmacy, Guizhou University of Traditional Chinese Medicine, 4 Dongqing Road, Guiyang 550025, China; (J.Z.); (J.Y.); (C.Z.); (J.Z.); (Y.L.); (L.P.)
| | - Kang He
- School of Pharmacy, Guizhou University of Traditional Chinese Medicine, 4 Dongqing Road, Guiyang 550025, China; (J.Z.); (J.Y.); (C.Z.); (J.Z.); (Y.L.); (L.P.)
| | - Hongjie Zhang
- School of Chinese Medicine, Hong Kong Baptist University, 7 Baptist University Road, Hong Kong SAR 999077, China
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14
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Xie Y, Su Y, Liao Z, Liang X, Hua J, Zhang D, Hu D, Yu Q. ent-Kaurane-Type Diterpenes Induce ROS-Mediated Mitochondrial Dysfunction and Apoptosis by Suppress the Homologous Recombination DNA Repair in Triple-Negative Breast Cancer Cells. Chem Biodivers 2023; 20:e202300670. [PMID: 37448115 DOI: 10.1002/cbdv.202300670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 07/08/2023] [Accepted: 07/13/2023] [Indexed: 07/15/2023]
Abstract
Six ent-kaurane-type diterpenes were isolated from the roots of Isodon ternifolia. Previous studies have shown that compounds 1 and 2 exhibited cytotoxicity against three human cancer cell lines (MCF-7, A549, and HCT116), but its molecular mechanism has not been studied yet. In the present study, the inhibited proliferation of compounds 1 and 2 of two triple-negative breast cancer (TNBC) cell lines (4T1 and MDA-MB-231) have been demonstrated by MTT and colony formation assay. Flow cytometry, western blotting, and qPCR were used to further demonstrate the apoptosis process in TNBCs. Importantly, the following mitochondrial membrane potential (MMP) decrease during apoptosis was demonstrated to correlate to reactive oxygen species (ROS) production. In addition, DNA damage induced by compounds 1 and 2 was illustrated by detect of homologous recombination (HR) DNA repair genes and proteins expression, such as RAD51. These results indicated that compounds 1 and 2 could trigger the TNBCs apoptosis mediated by ROS-induced mitochondrial dysfunction and induce DNA double-strand breaks (DSBs) by down regulating HR DNA repair. Furthermore, this research reveals that the mechanism between mitochondria dysfunction and DNA damage is deserved to be investigated for elucidating the dynamic signal transduction between the nucleus and the cellular matrix during apoptosis.
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Affiliation(s)
- Yikun Xie
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Yifan Su
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Zirou Liao
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Xinran Liang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Jing Hua
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University, Guilin, 541004, China
| | - Dawei Zhang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Dexuan Hu
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Qian Yu
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, China
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University, Guilin, 541004, China
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15
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Wang Y, Jiang Q, Sun D, Zhang N, Lin Y, Li H, Chen L. Ent-kauranes and ent-atisanes from Euphorbia wallichii and their anti-inflammatory activity. Phytochemistry 2023; 210:113643. [PMID: 36933878 DOI: 10.1016/j.phytochem.2023.113643] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 03/07/2023] [Accepted: 03/11/2023] [Indexed: 06/18/2023]
Abstract
Phytochemical investigation on the whole plant of Euphorbia wallichii led to the identification of twelve diterpenoids, including nine undescribed ones, in which wallkauranes A-E (1-5) were classified as ent-kaurane diterpenoids and wallatisanes A-D (6-9) were assigned as ent-atisane diterpenoids. The biological evaluation of these isolates against NO production was conducted in the LPS-induced RAW264.7 macrophage cells model, resulting in the identification of a series of potent NO inhibitors, with the most active wallkaurane A showing an IC50 value of 4.21 μM. The mechanistic study disclosed that wallkaurane A could inhibit pro-inflammatory cytokines generation such as TNF-α, IL-1β, and IL-6, and decrease the expression of iNOS and COX-2. Wallkaurane A could regulate the NF-κB signaling pathways and the JAK2/STAT3 signaling pathway to suppress the inflammatory reaction in LPS-induced RAW264.7 cells. Meanwhile, wallkaurane A could also inhibit the JAK2/STAT3 signaling pathway, thereby suppressing apoptosis in LPS-induced RAW264.7 cells.
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Affiliation(s)
- Yali Wang
- Wuya College of Innovation, Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Qinghua Jiang
- Department of Pharmacy, Shengjing Hospital of China Medical University, Shenyang, 110004, China
| | - Dejuan Sun
- Wuya College of Innovation, Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Na Zhang
- Wuya College of Innovation, Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Yu Lin
- Institute of Structural Pharmacology & TCM Chemical Biology, College of Pharmacy, Fujian University of Traditional Chinese Medicine, Fuzhou, 350122, China.
| | - Hua Li
- Wuya College of Innovation, Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, 110016, China; Institute of Structural Pharmacology & TCM Chemical Biology, College of Pharmacy, Fujian University of Traditional Chinese Medicine, Fuzhou, 350122, China.
| | - Lixia Chen
- Wuya College of Innovation, Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, 110016, China.
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16
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Mu L, Li T, Wu PL, Cai LQ, Li SY, Wang ZY, Liu YY, Wang J, Yan D, Rao ZY, Wang CJ, Zhang J, Cao Y, Pan K, Yin ZQ. 5-epi-ent-Kaurane diterpenoids from the aerial parts of Isodon eriocalyx and their anti-atherosclerotic potential. Phytochemistry 2023; 209:113621. [PMID: 36893826 DOI: 10.1016/j.phytochem.2023.113621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 02/21/2023] [Accepted: 02/22/2023] [Indexed: 06/18/2023]
Abstract
The phytochemical investigation of the EtOAc extract from the aerial parts of Isodon eriocalyx afforded seventeen diterpenoids, including eight undescribed compounds. Eriocalyxins H-L have unique structural characteristics featuring a 5-epi-ent-kaurane diterpenoid scaffold with eriocalyxins H-K also possess an unusual 6,11-epoxyspiro-lactone ring while eriocalyxin L, a 1,7:3,20-diepoxy-ent kaurene, features an 1,7-oxygen linkage. The structures of these compounds were elucidated by spectroscopic data interpretation, and the absolute configurations of eriocalyxins H, I, L, and M were confirmed by single-crystal X-ray diffraction. The isolates were screened for their inhibitory activities against VCAM-1 and ICAM-1 at 5 μM. While eriocalyxin O, coetsoidin A and laxiflorin P were found to significantly inhibit both VCAM-1 and ICAM-1, 8 (17),13-ent-labdadien-15 → 16-lactone-19-oic acid displayed evidently inhibitory effect against ICAM-1.
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Affiliation(s)
- Long Mu
- Department of TCMs Pharmaceuticals & Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, China
| | - Tian Li
- Nanjing Lishui District Hospital of Traditional Chinese Medicine, Nanjing, 211200, China
| | - Peng-Lin Wu
- China Tobacco Jiangsu Industrial Co., Ltd, Nanjing, 210019, China
| | - Ling-Qiao Cai
- Department of TCMs Pharmaceuticals & Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, China
| | - Shu-Ying Li
- Department of TCMs Pharmaceuticals & Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, China
| | - Zi-Yuan Wang
- Department of TCMs Pharmaceuticals & Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, China
| | - Yuan-Yuan Liu
- Nanjing Lishui District Hospital of Traditional Chinese Medicine, Nanjing, 211200, China
| | - Jie Wang
- Instrumental Analysis Center of CPU, China Pharmaceutical University, Nanjing, 210009, China
| | - Dong Yan
- Institute of Drug Discovery, Hongyun Pharmaceutical Co., Ltd, Chengdu, PR China
| | - Zheng-Yun Rao
- Institute of Drug Discovery, Hongyun Pharmaceutical Co., Ltd, Chengdu, PR China
| | - Chao-Jun Wang
- Institute of Drug Discovery, Hongyun Pharmaceutical Co., Ltd, Chengdu, PR China
| | - Jian Zhang
- Nanjing Lishui District Hospital of Traditional Chinese Medicine, Nanjing, 211200, China; Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, 210028, China
| | - Yi Cao
- China Tobacco Jiangsu Industrial Co., Ltd, Nanjing, 210019, China.
| | - Ke Pan
- Department of TCMs Pharmaceuticals & Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, China.
| | - Zhi-Qi Yin
- Department of TCMs Pharmaceuticals & Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, China.
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17
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Nguyen TAT, Hoang MH, Luc TT, Dang TKN, Nguyen TMT, Vo TN. Two new ent-kaurane-type diterpene diastereomers isolated from Coffea canephora. Nat Prod Res 2023; 37:1241-1248. [PMID: 34736370 DOI: 10.1080/14786419.2021.2000412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Phytochemical investigation of the trunks of Coffea canephora yielded two new ent-kaurane diterpene diastereomers, which have been named coffecanepholide A, ent-3β,16β,17-trihydroxykauran-18-al (1) and coffecanepholide B, ent-3β,16β,17-trihydroxykauran-19-al (2). Structural elucidation and configurational assignment were deduced from extensive spectroscopic NMR/HRESIMS analysis and by comparison with the spectral data of the literature relevant structures. The isolated compounds were assayed for in vitro inhibitory activities against α-glucosidase. Structure 2 showed the α-glucosidase inhibitory activity with an IC50 value of 294.7 ± 0.9 μM, while compound 1 exhibited inactivity. In addition, the docking results revealed that structure 2 can form more interactions with amino acid residues at the active site of α-glucosidase, which gave a more negative binding energy (-9.56 kcal/mol) compared with 1 (-8.60 kcal/mol). This observation might be responsible for a better activity of 2 against α-glucosidase.
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Affiliation(s)
- Thi Anh Tuyet Nguyen
- Department of Chemistry, Ho Chi Minh City University of Education, Ho Chi Minh City, Vietnam
| | - Minh Hao Hoang
- Department of Chemical Technology, Ho Chi Minh City University of Technology and Education, Ho Chi Minh City, Vietnam
| | - Thi Tuyen Luc
- Department of Chemical Technology, Ho Chi Minh City University of Technology and Education, Ho Chi Minh City, Vietnam
| | - Thi Kim Ngan Dang
- Department of Chemical Technology, Ho Chi Minh City University of Technology and Education, Ho Chi Minh City, Vietnam
| | - Thi My Tang Nguyen
- Department of Chemical Technology, Ho Chi Minh City University of Technology and Education, Ho Chi Minh City, Vietnam
| | - Thi Nga Vo
- Department of Chemical Technology, Ho Chi Minh City University of Technology and Education, Ho Chi Minh City, Vietnam
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18
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Brito LSDO, Batista A, Santos FA, de Lima RP, Ayala AP, Canuto KM, Silveira ER, Pessoa ODL. Anti-inflammatory kaurane diterpenoids of Erythroxylum bezerrae. Fitoterapia 2023; 165:105424. [PMID: 36603699 DOI: 10.1016/j.fitote.2022.105424] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 12/30/2022] [Accepted: 12/30/2022] [Indexed: 01/03/2023]
Abstract
Five unusual kaurane diterpenes, designated as bezerraditerpenes A-E (1-5), along with six known ones (6-11), were isolated from the hexane extract of the stems of Erythroxylum bezerrae. Their structures were elucidated based on the interpretation of the NMR spectroscopy, mass spectrometry, and X-ray diffraction analysis. The anti-inflammatory potential of the diterpenes 1-11 was screened through cellular viability and lipopolysaccharide (LPS)-induced nitric oxide (NO) production on murine macrophage-like cells RAW 264.7. Diterpene 6 (cauren-6β-ol) showed potent cytotoxicity and increased ability to inhibit NO production. Diterpenes 1 (bezerraditerpene A), 2 (bezerraditerpene B), and 8 (ent-kaur-16-ene-3β,15β-diol) exhibited the same significant anti-inflammatory activity with NO CI50 inhibition (3.21-3.76 μM) without cytotoxicity, in addition to decreasing the levels of pro-inflammatory cytokines TNF-α and IL-6 in LPS-induced RAW264.7 cells.
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Affiliation(s)
- Luana San de O Brito
- Departamento de Química Orgânica e Inorgânica, Centro de Ciências, Universidade Federal do Ceará, 60021-970 Fortaleza, CE, Brazil
| | - Alison Batista
- Departamento de Química Orgânica e Inorgânica, Centro de Ciências, Universidade Federal do Ceará, 60021-970 Fortaleza, CE, Brazil
| | - Flávia Almeida Santos
- Departamento de Fisiologia e Farmacologia, Universidade Federal do Ceará, 60430-270 Fortaleza, CE, Brazil
| | - Renan Pereira de Lima
- Departamento de Fisiologia e Farmacologia, Universidade Federal do Ceará, 60430-270 Fortaleza, CE, Brazil
| | - Alejandro Pedro Ayala
- Departamento de Física, Universidade Federal do Ceará, 60440-900 Fortaleza, CE, Brazil
| | - Kirley M Canuto
- Embrapa Agroindústria Tropical, R. Dra. Sara Mesquita, 2270, 60511-110 Fortaleza, CE, Brazil
| | - Edilberto R Silveira
- Departamento de Química Orgânica e Inorgânica, Centro de Ciências, Universidade Federal do Ceará, 60021-970 Fortaleza, CE, Brazil
| | - Otilia Deusdenia L Pessoa
- Departamento de Química Orgânica e Inorgânica, Centro de Ciências, Universidade Federal do Ceará, 60021-970 Fortaleza, CE, Brazil.
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19
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Orellana-Paucar AM. Steviol Glycosides from Stevia rebaudiana: An Updated Overview of Their Sweetening Activity, Pharmacological Properties, and Safety Aspects. Molecules 2023; 28:molecules28031258. [PMID: 36770924 PMCID: PMC9920402 DOI: 10.3390/molecules28031258] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 12/31/2022] [Accepted: 01/05/2023] [Indexed: 01/31/2023] Open
Abstract
This literature-based review synthesizes the available scientific information about steviol glycosides as natural sweeteners and molecules with therapeutic potential. In addition, it discusses the safety concerns regarding human consumption. Steviol glycosides exhibit a superior sweetener proficiency to that of sucrose and are noncaloric, noncariogenic, and nonfermentative. Scientific evidence encourages stevioside and rebaudioside A as sweetener alternatives to sucrose and supports their use based on their absences of harmful effects on human health. Moreover, these active compounds isolated from Stevia rebaudiana possess interesting medicinal activities, including antidiabetic, antihypertensive, anti-inflammatory, antioxidant, anticancer, and antidiarrheal activity. The described bioactivities of steviol glycosides deserve special attention based on their dose dependence and specific pathological situations. Further clinical research is needed to understand underlying mechanisms of action, therapeutic indexes, and pharmacological applications.
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Affiliation(s)
- Adriana Monserrath Orellana-Paucar
- Nutrition and Dietetics School, Faculty of Medical Sciences, University of Cuenca, Cuenca 010204, Ecuador;
- Pharmacology and Nutritional Sciences Interdisciplinary Research Group, Faculty of Medical Sciences, University of Cuenca, Cuenca 010204, Ecuador
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20
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Lin J, Lai X, Fan X, Ye B, Zhong L, Zhang Y, Shao R, Shi S, Huang W, Su L, Ying M. Oridonin Protects against Myocardial Ischemia-Reperfusion Injury by Inhibiting GSDMD-Mediated Pyroptosis. Genes (Basel) 2022; 13:2133. [PMID: 36421808 PMCID: PMC9690185 DOI: 10.3390/genes13112133] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Revised: 11/07/2022] [Accepted: 11/13/2022] [Indexed: 10/12/2023] Open
Abstract
Pyroptosis serves a crucial function in various types of ischemia and reperfusion injuries. Oridonin, a tetracycline diterpene derived from Rabdosia rubescens, can significantly inhibit the aggregation of NLRP3-mediated inflammasome. This experiment is aimed at investigating the effect of oridonin on pyroptosis in mice cardiomyocytes. Based on the models of myocardial ischemia/reperfusion (I/R) and hypoxia/reoxygenation (H/R), Evans Blue/TTC double staining, TUNEL staining, and Western blotting were applied to determine the effects of oridonin on myocardial damage, cellular activity and signaling pathways involved in pyroptosis. During I/R and H/R treatments, the extent of gasdermin D-N domains was upregulated in cardiomyocytes. Apart from that, oridonin improved cell survival in vitro and decreased the myocardial infarct size in vivo by also downregulating the activation of pyroptosis. Finally, the expression levels of ASC, NLRP3 and p-p65 were markedly upregulated in cardiomyocytes after H/R treatment, whereas oridonin suppressed the expression of these proteins. The present experiment revealed that myocardial I/R injury and pyroptosis can be alleviated and inhibited by oridonin pretreatment via NF-κB/NLRP3 signaling pathway, both in vivo and in vitro. Therefore, oridonin may serve as a potentially novel agent for the clinical treatment of myocardial ischemia-reperfusion injuries.
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Affiliation(s)
- Jiahui Lin
- First School of Medicine, Wenzhou Medical University, Wenzhou 325000, China
| | - Xianhui Lai
- Department of Cardiology, Yuhuan County People’s Hospital of Zhejiang Province, Taizhou 318000, China
| | - Xiaoxi Fan
- Key Laboratory of Cardiovascular Disease, Department of Cardiology, First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Bozhi Ye
- Key Laboratory of Cardiovascular Disease, Department of Cardiology, First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Lingfeng Zhong
- Key Laboratory of Cardiovascular Disease, Department of Cardiology, First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Yucong Zhang
- Key Laboratory of Cardiovascular Disease, Department of Cardiology, First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Ruiyin Shao
- Key Laboratory of Cardiovascular Disease, Department of Cardiology, First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Si Shi
- First School of Medicine, Wenzhou Medical University, Wenzhou 325000, China
| | - Weijian Huang
- Key Laboratory of Cardiovascular Disease, Department of Cardiology, First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Lan Su
- Key Laboratory of Cardiovascular Disease, Department of Cardiology, First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Miaomiao Ying
- Department of Pathology, First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
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21
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Bellone ML, Fiengo L, Cerchia C, Cotugno R, Bader A, Lavecchia A, De Tommasi N, Piaz FD. Impairment of Nucleolin Activity and Phosphorylation by a Trachylobane Diterpene from Psiadia punctulata in Cancer Cells. Int J Mol Sci 2022; 23:ijms231911390. [PMID: 36232690 PMCID: PMC9570042 DOI: 10.3390/ijms231911390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 09/20/2022] [Accepted: 09/23/2022] [Indexed: 11/18/2022] Open
Abstract
Human nucleolin (hNcl) is a multifunctional protein involved in the progression of various cancers and plays a key role in other pathologies. Therefore, there is still unsatisfied demand for hNcl modulators. Recently, we demonstrated that the plant ent-kaurane diterpene oridonin inhibits hNcl but, unfortunately, this compound is quite toxic for healthy cells. Trachylobane diterpene 6,19-dihydroxy-ent-trachiloban-17-oic acid (compound 12) extracted from Psiadia punctulata (DC.) Vatke (Asteraceae) emerged as a ligand of hNcl from a cellular thermal shift assay (CETSA)-based screening of a small library of diterpenes. Effective interaction between this compound and the protein was demonstrated to occur both in vitro and inside two different types of cancer cells. Based on the experimental and computational data, a model of the hNcl/compound 12 complex was built. Because of this binding, hNcl mRNA chaperone activity was significantly reduced, and the level of phosphorylation of the protein was affected. At the biological level, cancer cell incubation with compound 12 produced a cell cycle block in the subG0/G1 phase and induced early apoptosis, whereas no cytotoxicity towards healthy cells was observed. Overall, these results suggested that 6,19-dihydroxy-ent-trachiloban-17-oic could represent a selective antitumoral agent and a promising lead for designing innovative hNcl inhibitors also usable for therapeutic purposes.
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Affiliation(s)
- Maria Laura Bellone
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 84084 Fisciano, Italy
| | - Lorenzo Fiengo
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 84084 Fisciano, Italy
| | - Carmen Cerchia
- “Drug Discovery” Laboratory, Department of Pharmacy, University of Napoli “Federico II”, Via D. Montesano, 49, 80131 Napoli, Italy
| | - Roberta Cotugno
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 84084 Fisciano, Italy
| | - Ammar Bader
- Department of Pharmacognosy, Faculty of Pharmacy, Umm Al-Qura University, Mecca 21995, Saudi Arabia
| | - Antonio Lavecchia
- “Drug Discovery” Laboratory, Department of Pharmacy, University of Napoli “Federico II”, Via D. Montesano, 49, 80131 Napoli, Italy
| | - Nunziatina De Tommasi
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 84084 Fisciano, Italy
| | - Fabrizio Dal Piaz
- Department of Medicine, Surgery and Dentistry, University of Salerno, Via S. Allende, 84081 Baronissi, Italy
- Correspondence:
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22
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Liu Y, Wu DD, Zhou YQ, Wu JT, Qi ZT, Algradi AM, Pan J, Guan W, Yang BY, Kuang HX. A new ent-kaurane diterpenoid from the pericarps of Datura metel. J Asian Nat Prod Res 2022; 24:884-890. [PMID: 34647831 DOI: 10.1080/10286020.2021.1981874] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Accepted: 09/13/2021] [Indexed: 06/13/2023]
Abstract
A new ent-kaurane diterpenoid, named kaurane daturoside A (1), was isolated from the 70%-EtOH extract of dried pericarps of Datura metel L., along with six known terpenoids, 16α,17-dihydroxy-ent-kauran-19-diglycoside (2), cyclosieversioside F (3), astragaloside II (4), ginsenoside Rg1 (5), astrojanoside A (6), celerioside E (7). The isolated structures were elucidated by means of spectroscopic analyses, and the compounds 2, 3, 7 were separated from Solanaceae for the first time. Meanwhile, among isolates, compounds 2 and 5 exhibited anti-inflammatory activities against LPS-activated RAW264.7 cells (IC50<11.00 μM).
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Affiliation(s)
- Yan Liu
- Key Laboratory of Chinese Materia Medica, Ministry of Education, Faculty of Pharmacy, Heilongjiang University of Chinese Medicine, Harbin 150040, China
| | - Dan-Dan Wu
- Key Laboratory of Chinese Materia Medica, Ministry of Education, Faculty of Pharmacy, Heilongjiang University of Chinese Medicine, Harbin 150040, China
| | - Yong-Qiang Zhou
- Guizhou University of Traditional Chinese Medicine, Guizhou 550025, China
| | - Jia-Tong Wu
- Key Laboratory of Chinese Materia Medica, Ministry of Education, Faculty of Pharmacy, Heilongjiang University of Chinese Medicine, Harbin 150040, China
| | - Zi-Tang Qi
- Key Laboratory of Chinese Materia Medica, Ministry of Education, Faculty of Pharmacy, Heilongjiang University of Chinese Medicine, Harbin 150040, China
| | - Adnan Mohammed Algradi
- Key Laboratory of Chinese Materia Medica, Ministry of Education, Faculty of Pharmacy, Heilongjiang University of Chinese Medicine, Harbin 150040, China
| | - Juan Pan
- Key Laboratory of Chinese Materia Medica, Ministry of Education, Faculty of Pharmacy, Heilongjiang University of Chinese Medicine, Harbin 150040, China
| | - Wei Guan
- Key Laboratory of Chinese Materia Medica, Ministry of Education, Faculty of Pharmacy, Heilongjiang University of Chinese Medicine, Harbin 150040, China
| | - Bing-You Yang
- Key Laboratory of Chinese Materia Medica, Ministry of Education, Faculty of Pharmacy, Heilongjiang University of Chinese Medicine, Harbin 150040, China
| | - Hai-Xue Kuang
- Key Laboratory of Chinese Materia Medica, Ministry of Education, Faculty of Pharmacy, Heilongjiang University of Chinese Medicine, Harbin 150040, China
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Liu JS, Luo LP, Xu G, Xu XJ, Xu C, Ou E, Zhang HY, Yuan ZQ, Zhao Y. Synthesis and Biological Evaluation of Steviol Derivatives with Improved Cytotoxic Activity and Selectivity. J Nat Prod 2022; 85:1945-1958. [PMID: 35943432 DOI: 10.1021/acs.jnatprod.2c00161] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Steviol is an ent-kaurene diterpenoid with interesting pharmacological activity. Several steviol derivatives with an exo-methylene cyclopentanone unit were discovered as potent antitumor agents. However, their poor selectivity for tumor cells relative to normal cells reduces their prospects as potential anticancer drugs. In this study, based on previous work, 32 steviol derivatives, including 28 new analogues, were synthesized. Their cytotoxicity against tumor cells and normal cells was evaluated. Several new derivatives, such as 7a, 7h, and 8f, with improved cytotoxic selectivity and antiproliferative activity were obtained, and the structure-activity relationship correlations were investigated. The new compound 8f displayed potent antiproliferative activity against Huh7 cells (IC50 = 2.6 μM) and very weak cytotoxicity against the corresponding normal cells HHL5 (IC50 = 97.0 μM). Further investigation showed that 8f arrested the cell cycle at the G0/G1 phase and caused reactive oxygen species overproduction, decreased mitochondrial membrane potential, and induced apoptosis of Huh7 cells through inhibition of the PI3K/Akt/mTOR and NF-κB pathway as well as upregulation of Bax/Bcl-2 ratio. The present study suggested that 8f is a promising lead compound for new cancer therapies, and the results presented herein may encourage the further modification of steviol for additional derivatives with enhanced efficacy and selectivity.
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Affiliation(s)
- Jian-Song Liu
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, People's Republic of China
| | - Li-Ping Luo
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, People's Republic of China
| | - Geng Xu
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, People's Republic of China
| | - Xiao-Jia Xu
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, People's Republic of China
| | - Chao Xu
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, People's Republic of China
| | - E Ou
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, People's Republic of China
| | - Han-Yuan Zhang
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, People's Republic of China
| | - Zheng-Qiang Yuan
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, People's Republic of China
| | - Yu Zhao
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, People's Republic of China
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Jiang J, Liu D, Wang Y, Li W, Hong Z, An J, Qiao S, Xie Z. Glaucocalyxin a protect liver function via inhibiting platelet over-activation during sepsis. Phytomedicine 2022; 100:154089. [PMID: 35398736 DOI: 10.1016/j.phymed.2022.154089] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 03/23/2022] [Accepted: 03/28/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND Rabdosia japonica (Burm. f.) var. glaucocalyx (Maxim.) is a perennial herb, and is traditionally used as folk medicine for treating inflammatory diseases and cancer. Gaucocalyxin A (GLA) is an ent‑kaurane diterpenoid that is isolated from the aerial parts of R. japonica (Burm. f.) var. glaucocalyx (Maxim.). In a recent study, we found that GLA protects against acute liver dysfunction induced by Escherichia coli, which is likely related to its anti-inflammatory effects. However, the mechanism by which GLA protects liver injury during sepsis is unknown. AIM To evaluate the anti-inflammatory function of GLA and its regulatory effect on platelet function. METHOD An in vivo model of sepsis was established by inoculating mice with E. coli. Live function and platelet activation were evaluated through standard assays. The levels of pro-inflammatory factors were measured through ELISA and qRT-PCR. RESULTS GLA alleviated liver dysfunction in the mouse model of sepsis. GLA-treated mice displayed lower complement activation and liver dysfunction after E. coli infection. GLA alleviated the decrease in peripheral platelet counts by inhibiting their clearance by Kupffer cells in liver. Furthermore, GLA inhibited platelet activation through the RIP1/RIP3/AKT pathway and downregulated C3aR expression on the platelets, thereby inhibiting liver injury and dysfunction due to excessive complement activation. CONCLUSION GLA can inhibit platelet activation by reducing surface expression of C3aR, which protect the liver from injury induced by excessive complement activation. GLA is a novel therapeutic agent for controlling sepsis-related liver dysfunction.
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Affiliation(s)
- Jiang Jiang
- Department of Nuclear Medicine, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Dengping Liu
- Institute of Clinical Medicine Research, Suzhou Science & Technology Town Hospital, Gusu School, Nanjing Medical University, Suzhou, China
| | - Yuanyuan Wang
- Department of Intensive Care Unit, Suzhou Science & Technology Town Hospital, Gusu School, Nanjing Medical University, Suzhou, China
| | - Wei Li
- Cyrus Tang Hematology Center, Soochow University, Suzhou, China
| | - Zhihui Hong
- Department of Nuclear Medicine, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Jianzhong An
- Institute of Clinical Medicine Research, Suzhou Science & Technology Town Hospital, Gusu School, Nanjing Medical University, Suzhou, China
| | - Shigang Qiao
- Institute of Clinical Medicine Research, Suzhou Science & Technology Town Hospital, Gusu School, Nanjing Medical University, Suzhou, China; Faculty of Anesthesiology, Suzhou Science & Technology Town Hospital, Gusu School, Nanjing Medical University, Suzhou, China
| | - Zhanli Xie
- Institute of Clinical Medicine Research, Suzhou Science & Technology Town Hospital, Gusu School, Nanjing Medical University, Suzhou, China.
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Rycerz K, Jaworska-Adamu J, Krawczyk A, Arciszewski MB. Immunoreactivity of acetylcholinesterase and M1 muscarinic receptors in the hippocampus and striatum of rats treated with Rebaudioside A. Pol J Vet Sci 2022; 25:303-310. [PMID: 35861972 DOI: 10.24425/pjvs.2022.141815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Rebaudioside A (RebA) is a steviol glycoside used for production of sweeteners. It was shown that the glycosides affect memory and learning processes. The aim of the study was to investigate neurons immunoreactive for acetylcholinesterase (AChE) and M1 muscarinic receptors (mAChRs-M1) of the hippocampal CA1 and CA3 fields and striatal caudateputamen (CP) and globus pallidus (GP) in rats receiving RebA. RebA was administrated to adult rats for 45 days in dilutions of 1 mg and 2 mg RebA/ml water. Indirect peroxidase-antiperoxidase immunohistochemical reaction was conducted on frontal sections containing the hippocampus and striatum with use of antibodies against AChE and mAChRs-M1. Immunoreactive for the studied proteins neurons were morphologically and morphometrically assessed in hippocampal CA1 and CA3 fields and in CP and GP. Microscopic observations did not reveal significant changes in morphology of immunoreactive neurons, which suggests no neurotoxic effect of the studied glycoside on these cells. Morphometric analyses revealed an increase in the density of AChE and mAChRs-M1 immunoreactive neurons. A decrease in reaction intensity of AChE-positive neurons was also demonstrated in the hippocampal CA1 field and in GP. In contrast, an increase in reaction intensity of mAChRs-M1-positive neurons was found in CA1, CA3 fields and in CP and GP. The results of our preliminary studies indicate that RebA administrated to rats has an impact on cholinergic neurons in the studied area. The results suggest a possible increase in the activity of the cholinergic system, responsible for memory and learning processes, after administration of RebA.
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Affiliation(s)
- K Rycerz
- Department of Animal Anatomy and Histology, Faculty of Veterinary Medicine, University of Life Sciences, Akademicka 12, 20-033, Lublin, Poland
| | - J Jaworska-Adamu
- Department of Animal Anatomy and Histology, Faculty of Veterinary Medicine, University of Life Sciences, Akademicka 12, 20-033, Lublin, Poland
| | - A Krawczyk
- Department of Animal Anatomy and Histology, Faculty of Veterinary Medicine, University of Life Sciences, Akademicka 12, 20-033, Lublin, Poland
| | - M B Arciszewski
- Department of Animal Anatomy and Histology, Faculty of Veterinary Medicine, University of Life Sciences, Akademicka 12, 20-033, Lublin, Poland
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Wang X, He MJ, Chen XJ, Bai YT, Zhou G. Glaucocalyxin A impairs tumor growth via amplification of the ATF4/CHOP/CHAC1 cascade in human oral squamous cell carcinoma. J Ethnopharmacol 2022; 290:115100. [PMID: 35151835 DOI: 10.1016/j.jep.2022.115100] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 01/31/2022] [Accepted: 02/08/2022] [Indexed: 06/14/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The natural extract glaucocalyxin A (GLA), purified from the aboveground sections of the Chinese traditional medicinal herb Rabdosia japonica (Burm. f.) Hara var. glaucocalyx (Maxim.) Hara, has various pharmacological benefits, such as anti-bacterial, anti-coagulative, anti-neoplastic, and anti-inflammatory activities. Although GLA has shown anti-tumor activity against various cancers, the therapeutic potential and biological mechanisms of GLA remain to be further explored in oral squamous cell carcinoma (OSCC). AIM OF THE STUDY This study aimed to elucidate the therapeutic potential and regulatory mechanisms of GLA in OSCC. MATERIALS AND METHODS The cell proliferation and apoptosis effects of GLA were analyzed by CCK-8, clone formation, Annexin V/PI staining, and apoptotic protein expression in vitro. An OSCC xenograft model was applied to confirm the anti-neoplastic effect in vivo. Furthermore, the changes of reactive oxygen species (ROS) were determined by DCFH-DA probe and GSH/GSSG assay, and inhibited by the pan-caspase inhibitor Z-VAD(OMe)-FMK and the ROS scavenger N-acetylcysteine (NAC). The modulation of GLA on mitochondria and ER-dependent apoptosis pathways was analyzed by JC-1 probe, quantitative real-time PCR, and Western blot. Finally, public databases, clinical samples, and transfection cells were analyzed to explore the importance of GLA's indirect targeting molecule CHAC1 in OSCC. RESULTS GLA significantly inhibited cell proliferation and induced apoptosis in vitro and in vivo. GLA perturbed the redox homeostasis, and cell apoptosis was totally rescued by Z-VAD(OMe)-FMK and NAC. Furthermore, GLA activated the mitochondrial apoptosis pathway. Simultaneously, the overexpression and knockdown of CHAC1 dramatically affected GLA-mediated apoptosis. The endoplasmic reticulum stress-associated ATF4/CHOP signal was identified to participate in GLA-upregulated CHAC1 expression. Finally, we found that CHAC1 expression was lower in OSCC compared with normal tissues and positively correlated with 4-Hydroxynonenal (4-HNE) level. High CHAC1 expression also indicated better overall survival. Moreover, CHAC1 selectively regulated the viability of oral cancer cells. CONCLUSION GLA is a promising therapeutic agent that activates the ROS-mediated ATF4/CHOP/CHAC1 axis in OSCC patients.
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Affiliation(s)
- Xin Wang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, China
| | - Ming-Jing He
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, China; Department of Oral Medicine, School and Hospital of Stomatology, Wuhan University, China
| | - Xiao-Jie Chen
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, China; Department of Oral Medicine, School and Hospital of Stomatology, Wuhan University, China
| | - Yu-Ting Bai
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, China
| | - Gang Zhou
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, China; Department of Oral Medicine, School and Hospital of Stomatology, Wuhan University, 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. J Nat Prod 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] [What about the content of this article? (0)] [Affiliation(s)] [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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28
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Iatridis N, Kougioumtzi A, Vlataki K, Papadaki S, Magklara A. Anti-Cancer Properties of Stevia rebaudiana; More than a Sweetener. Molecules 2022; 27:molecules27041362. [PMID: 35209150 PMCID: PMC8874712 DOI: 10.3390/molecules27041362] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 01/27/2022] [Accepted: 02/15/2022] [Indexed: 01/03/2023]
Abstract
Stevia rebaudiana Bertoni is a perennial shrub from Paraguay that is nowadays widely cultivated, since it is increasingly being utilized as a sugar substitute in various foodstuffs due to its sweetness and minimal caloric content. These properties of the plant’s derivatives have spurred research on their biological activities revealing a multitude of benefits to human health, including antidiabetic, anticariogenic, antioxidant, hypotensive, antihypertensive, antimicrobial, anti-inflammatory and antitumor actions. To our knowledge, no recent reviews have surveyed and reported published work solely on the latter. Consequently, our main objective was to present a concise, literature-based review of the biological actions of stevia derivatives in various tumor types, as studied in in vitro and in vivo models of the disease. With global cancer estimates suggesting a 47% increase in cancer cases by 2040 compared to 2020, the data reviewed in this article should provide a better insight into Stevia rebaudiana and its products as a means of cancer prevention and therapy within the context of a healthy diet.
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Affiliation(s)
- Nikos Iatridis
- Department of Clinical Chemistry, Faculty of Medicine, University of Ioannina, 45110 Ioannina, Greece; (N.I.); (A.K.); (K.V.); (S.P.)
| | - Anastasia Kougioumtzi
- Department of Clinical Chemistry, Faculty of Medicine, University of Ioannina, 45110 Ioannina, Greece; (N.I.); (A.K.); (K.V.); (S.P.)
- Biomedical Research Insitute, Foundation for Research and Technology-Hellas, 45110 Ioannina, Greece
| | - Katerina Vlataki
- Department of Clinical Chemistry, Faculty of Medicine, University of Ioannina, 45110 Ioannina, Greece; (N.I.); (A.K.); (K.V.); (S.P.)
| | - Styliani Papadaki
- Department of Clinical Chemistry, Faculty of Medicine, University of Ioannina, 45110 Ioannina, Greece; (N.I.); (A.K.); (K.V.); (S.P.)
| | - Angeliki Magklara
- Department of Clinical Chemistry, Faculty of Medicine, University of Ioannina, 45110 Ioannina, Greece; (N.I.); (A.K.); (K.V.); (S.P.)
- Biomedical Research Insitute, Foundation for Research and Technology-Hellas, 45110 Ioannina, Greece
- Institute of Biosciences, University Research Center of Ioannina (URCI), 45110 Ioannina, Greece
- Correspondence:
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Wang SJ, Yu M, Li H, Zhang GJ. Structures and Biological Activities of Polyacylated ent-Kaurane Diterpenoid Glycosides from the Aerial Parts of Inula hupehensis. J Nat Prod 2022; 85:185-195. [PMID: 34964626 DOI: 10.1021/acs.jnatprod.1c00947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Sixteen new (1-16) and three known (17-19) polyacylated ent-kaurane diterpenoid glycosides were isolated from the aerial parts of Inula hupehensis. The planar structures of 1-16 and their relative configurations were established on the basis of extensive spectroscopic analysis. The absolute configurations of all stereogenic centers for compounds 1 and 6 were determined by single-crystal X-ray diffraction experiments, and the absolute configurations of the other new compounds were assigned by chemical degradation and experimental ECD data. Antineuroinflammatory testing of all the isolates showed that compound 5 inhibited lipopolysaccharide-induced nitric oxide production in BV-2 microglial cells with an IC50 value of 15.6 μM. In an α-glucosidase inhibitory assay, compound 13 exhibited a strong inhibitory effect with an IC50 value of 32.8 μM, whereas the IC50 value of the positive control, acarbose, was 387.8 μM.
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Affiliation(s)
- Su-Juan Wang
- College of Pharmacy, Guilin Medical University, Guilin 541004, People's Republic of China
| | - Min Yu
- College of Pharmacy, Guilin Medical University, Guilin 541004, People's Republic of China
| | - Hua Li
- College of Pharmacy, Guilin Medical University, Guilin 541004, People's Republic of China
| | - Gui-Jie Zhang
- College of Pharmacy, Guilin Medical University, Guilin 541004, People's Republic of China
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Wang S, Huang J, Tan KS, Deng L, Liu F, Tan W. Isosteviol Sodium Ameliorates Dextran Sodium Sulfate-Induced Chronic Colitis through the Regulation of Metabolic Profiling, Macrophage Polarization, and NF- κB Pathway. Oxid Med Cell Longev 2022; 2022:4636618. [PMID: 35126813 PMCID: PMC8813272 DOI: 10.1155/2022/4636618] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 11/30/2021] [Accepted: 12/20/2021] [Indexed: 12/12/2022]
Abstract
Inflammatory bowel diseases (IBDs) constitute a group of chronic intestinal conditions prominently featuring deranged metabolism. Effective pharmacological treatments for IBDs are lacking. Isosteviol sodium (STV-Na) exhibits anti-inflammatory activity and may offer therapeutic benefits in chronic colitis. However, the associated mechanism remains unclear. This study is aimed at exploring the therapeutic effects of STV-Na against chronic colitis in terms of metabolic reprogramming and macrophage polarization. Results show that STV-Na attenuated weight loss and colonic pathological damage and restored the hematological and biochemical parameters in chronic colitis mice models. STV-Na also restored intestinal permeability by increasing the goblet cell numbers, which was accompanied by lowered plasma lipopolysaccharide and diamine oxidase levels. Metabolomic analysis highlighted 102 candidate biomarkers and 5 vital pathways that may be crucial in the potential pharmacological mechanism of STV-Na in regulating intestinal inflammation and oxidative stress. These pathways were glycerophospholipid metabolism, phenylalanine metabolism, phenylalanine, tyrosine and tryptophan biosynthesis, the pentose phosphate pathway, and phosphonate and phosphinate metabolism. Furthermore, STV-Na significantly decreased M1 macrophage polarization in the spleen and colon. The mRNA and protein levels of IL-1β, TNF-α, and NF-κB/p65 in colonic tissue from the colitis mice were decreased after the STV-Na treatment. Overall, STV-Na could alleviate chronic colitis by suppressing oxidative stress and inflammation levels, reprogramming the metabolic profile, inhibiting macrophage polarization, and suppressing the NF-κB/p65 signaling pathway. STV-Na remains a promising candidate drug for treating IBDs.
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Affiliation(s)
- Shanping Wang
- 1Institute of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China
| | - Jiandong Huang
- 1Institute of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China
| | - Keai Sinn Tan
- 2College of Pharmacy, Jinan University, Guangzhou 510632, China
- 3Post-Doctoral Innovation Site, Jinan University Affiliation, Yuanzhi Health Technology Co, Ltd., Hengqin New District, Zhuhai, Guangdong 51900, China
| | - Liangjun Deng
- 1Institute of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China
| | - Fei Liu
- 1Institute of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China
| | - Wen Tan
- 3Post-Doctoral Innovation Site, Jinan University Affiliation, Yuanzhi Health Technology Co, Ltd., Hengqin New District, Zhuhai, Guangdong 51900, China
- 4Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Bandar Sunway 47500, Malaysia
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Yang H, Wang J, Khan S, Zhang Y, Zhu K, Zhou E, Gong M, Liu B, Kan Q, Zhang Q. Selective synergistic anticancer effects of cisplatin and oridonin against human p53-mutant esophageal squamous carcinoma cells. Anticancer Drugs 2022; 33:e444-e452. [PMID: 34520434 PMCID: PMC8670348 DOI: 10.1097/cad.0000000000001237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 08/17/2021] [Indexed: 10/26/2022]
Abstract
Oridonin (ORI) is known to pose anticancer activity against cancer, which could induce the therapeutic impact of chemotherapy drugs. However, such simple combinations have numerous side effects such as higher toxicity to normal cells and tissues. To enhance the therapeutic effects with minimal side effects, here we used ORI in combination with cisplitin (CIS) against different esophageal squamous cell carcinoma (ESCC) cell lines in vitro, to investigate the synergistic anticancer effects of the two drugs against ESCC. Calcusyn Graphing Software was used to assess the synergistic effect. Apoptosis, wound healing and cell invasion assay were conducted to further confirm the synergistic effects of ORI and CIS. Intracellular glutathione (GSH) and reactive oxygen species assay, immunofluorescence staining and western blot were used to verify the mechanism of synergistic cytotoxicity. ORI and CIS pose selective synergistic effects on ESCC cells with p53 mutations. Moreover, we found that the synergistic effects of these drugs are mediated by GSH/ROS systems, such that intracellular GSH production was inhibited, whereas the ROS generation was induced following ORI and CIS application. In addition, we noted that DNA damage was induced as in response to ORI and CIS treatment. Overall, these results suggest that ORI can synergistically enhance the effect of CIS, and GSH deficiency and p53 mutation, might be biomarkers for the combinational usage of ORI and CIS.
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Affiliation(s)
- Huiyu Yang
- Department of Gastroenterology, The First Affiliated Hospital of Zhengzhou University
- State Key Laboratory of Esophageal Cancer Prevention & Treatment, Zhengzhou University
| | - Jie Wang
- State Key Laboratory of Esophageal Cancer Prevention & Treatment, Zhengzhou University
- School of Pharmaceutical Sciences, Zhengzhou University
| | - Suliman Khan
- Department of advanced medical Sciences, The Second Affiliated Hospital of Zhengzhou University
| | - Yuanying Zhang
- Department of Gastroenterology, The First Affiliated Hospital of Zhengzhou University
- State Key Laboratory of Esophageal Cancer Prevention & Treatment, Zhengzhou University
- Academy of Medical Sciences, Zhengzhou University
| | - Kuicheng Zhu
- State Key Laboratory of Esophageal Cancer Prevention & Treatment, Zhengzhou University
- Academy of Medical Sciences, Zhengzhou University
| | - Enhui Zhou
- State Key Laboratory of Esophageal Cancer Prevention & Treatment, Zhengzhou University
- BGI College & Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University
| | - Meiyuan Gong
- State Key Laboratory of Esophageal Cancer Prevention & Treatment, Zhengzhou University
- School of Pharmaceutical Sciences, Zhengzhou University
| | - Bingrong Liu
- Department of Gastroenterology, The First Affiliated Hospital of Zhengzhou University
- State Key Laboratory of Esophageal Cancer Prevention & Treatment, Zhengzhou University
- Academy of Medical Sciences, Zhengzhou University
| | - Quancheng Kan
- Department of Pharmacology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Qi Zhang
- Department of Gastroenterology, The First Affiliated Hospital of Zhengzhou University
- State Key Laboratory of Esophageal Cancer Prevention & Treatment, Zhengzhou University
- School of Pharmaceutical Sciences, Zhengzhou University
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Zhan Z, Zhang T, Dai F, Wen X, Chen Y, Jiang H, Gu T, Cheng Y, Tang L. Effect of oridonin on oxylipins in the livers of mice with acute liver injury induced by D-galactosamine and lipopolysaccharide. Int Immunopharmacol 2022; 102:108387. [PMID: 34838489 DOI: 10.1016/j.intimp.2021.108387] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Revised: 11/15/2021] [Accepted: 11/18/2021] [Indexed: 12/17/2022]
Abstract
BACKGROUND AND PURPOSE Oridonin (Ori) has been shown to protect against acute liver injury (ALI) induced by D-galactosamine (D-GalN) and lipopolysaccharide (LPS). Oxylipins are oxidation products of polyunsaturated fatty acids (PUFAs) and are key proinflammatory mediators. This study aimed to investigate the changes in oxylipins in the livers of mice with D-GalN/LPS-induced ALI and the effects of Ori on these changes. RESULTS 54 oxylipins in liver tissues were identified and qualitatively and quantitatively analyzed by ultra-performance liquid chromatography-electrospray ionization triple quadrupole mass spectrometry (UPLC-QTRAP/MS/MS). The levels of 12-HETE, 12-HEPE, 14(S)-HDHA, PGE2, dihomo-γ-linolenic acid and 13-HOTrE in the liver were significantly increased in the D-GalN/LPS-induced ALI group compared with the control group, and the levels of EPA and 7-HDHA were significantly decreased. However, pretreatment with Ori dramatically decreased the levels of 12-HETE, 12-HEPE, 14(S)-HDHA, PGE2 and 13-HOTrE compared with those of the ALI group and induced 7-HDHA and 15-oxoETE. Moreover, Ori reduced the protein levels of COX-1, COX-2, ALOX5, ALOX12 and ALOX15 induced by D-GalN/LPS, indicating that Ori altered oxylipins through the COX and LOX pathways. CONCLUSIONS These results suggest that the protective effect of Ori on ALI is partly mediated by affecting the oxylipin pathway.
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Affiliation(s)
- Zhikun Zhan
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Tao Zhang
- Department of Pharmaceutical, Guangzhou Women and Children's Medical Center, Guangzhou, Guangdong 5101201 China
| | - Fahong Dai
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Xin Wen
- Department of Clinical Research Centre, ZhuJiang Hospital, Southern Medical University, Guangzhou, Guangdong Province, China
| | - Yulian Chen
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Huanguo Jiang
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Tanwei Gu
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Yuan Cheng
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China; Department of Hepatobiliary Surgery II, ZhuJiang Hospital, Southern Medical University, Guangzhou, Guangdong Province, China.
| | - Lan Tang
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China.
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Hosohata K, Jin D, Takai S. Glaucocalyxin A Ameliorates Hypoxia/Reoxygenation-Induced Injury in Human Renal Proximal Tubular Epithelial Cell Line HK-2 Cells. Int J Mol Sci 2021; 23:ijms23010446. [PMID: 35008870 PMCID: PMC8745506 DOI: 10.3390/ijms23010446] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 12/27/2021] [Accepted: 12/27/2021] [Indexed: 12/16/2022] Open
Abstract
Ischemia-reperfusion injury is one of the major causes of acute kidney injury (AKI), which is increasingly prevalent in clinical settings. Glaucocalxin A (GLA), a biologically ent-kauranoid diterpenoid, has various pharmacological effects like antioxidation, immune regulation, and antiatherosclerosis. In this study, the effect of GLA on AKI and its mechanism were studied in vitro. HK-2 human renal tubular epithelial cells were exposed to hypoxia/reoxygenation (H/R), which were established as an in vitro AKI model. Subsequently, the mRNA expressions of inflammatory and antioxidant factors were determined by quantitative reverse transcription polymerase chain reaction (RT-qPCR). Reactive oxygen species (ROS) production and cell death were detected by fluorescence-activated cell sorting. GLA pre-treatment improved the cell viability of HK-2 cells exposed to H/R. GLA suppressed the H/R-induced ROS production in HK-2 cells. GLA also elevated the activities of superoxide dismutase of HK-2 cells exposed to H/R. Moreover, GLA prevented H/R-induced cell death in HK-2 cells. Furthermore, GLA ameliorated the activation of the protein kinase B (Akt)/nuclear factor erythroid 2-related factor 2 (Nrf2)/heme oxygenase-1 (HO-1) signaling pathway in HK-2 cells exposed to H/R. Our findings suggested that GLA protected HK-2 cells from H/R-induced oxidative damage, which was mediated by the Akt/Nrf2/HO-1 signaling pathway. These results indicate that GLA may serve as a promising therapeutic drug for AKI.
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Affiliation(s)
- Keiko Hosohata
- Education and Research Center for Clinical Pharmacy, Osaka Medical and Pharmaceutical University, Osaka 569-1094, Japan
- Correspondence: ; Tel.: +81-72-690-1271
| | - Denan Jin
- Department of Innovative Medicine, Osaka Medical and Pharmaceutical University, Osaka 569-1094, Japan; (D.J.); (S.T.)
| | - Shinji Takai
- Department of Innovative Medicine, Osaka Medical and Pharmaceutical University, Osaka 569-1094, Japan; (D.J.); (S.T.)
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Tan Y, Zhou X, Gong Y, Gou K, Luo Y, Jia D, Dai L, Zhao Y, Sun Q. Biophysical and biochemical properties of PHGDH revealed by studies on PHGDH inhibitors. Cell Mol Life Sci 2021; 79:27. [PMID: 34971423 DOI: 10.1007/s00018-021-04022-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 11/02/2021] [Accepted: 11/03/2021] [Indexed: 02/08/2023]
Abstract
The rate-limiting serine biogenesis enzyme PHGDH is overexpressed in cancers. Both serine withdrawal and genetic/pharmacological inhibition of PHGDH have demonstrated promising tumor-suppressing activities. However, the enzyme properties of PHGDH are not well understood and the discovery of PHGDH inhibitors is still in its infancy. Here, oridonin was identified from a natural product library as a new PHGDH inhibitor. The crystal structure of PHGDH in complex with oridonin revealed a new allosteric site. The binding of oridonin to this site reduced the activity of the enzyme by relocating R54, a residue involved in substrate binding. Mutagenesis studies showed that PHGDH activity was very sensitive to cysteine mutations, especially those in the substrate binding domain. Conjugation of oridonin and other reported covalent PHGDH inhibitors to these sites will therefore inhibit PHGDH. In addition to being inhibited enzymatically, PHGDH can also be inhibited by protein aggregation and proteasome-mediated degradation. Several tested PHGDH cancer mutants showed altered enzymatic activity, which can be explained by protein structure and stability. Overall, the above studies present new biophysical and biochemical insights into PHGDH and may facilitate the future design of PHGDH inhibitors.
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Affiliation(s)
- Yuping Tan
- Department of Pathology, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, 610041, China
| | - Xia Zhou
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, 17#, 3rd Section, Ren min South Road, Chengdu, 610041, China
| | - Yanqiu Gong
- National Clinical Research Center for Geriatrics and Department of General Practice, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, 610041, China
| | - Kun Gou
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, 17#, 3rd Section, Ren min South Road, Chengdu, 610041, China
| | - Youfu Luo
- Department of Pathology, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, 610041, China
| | - Da Jia
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Division of Neurology, Department of Paediatrics, West China Second University Hospital, Sichuan University, Chengdu, 610041, China
| | - Lunzhi Dai
- National Clinical Research Center for Geriatrics and Department of General Practice, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, 610041, China.
| | - Yinglan Zhao
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, 17#, 3rd Section, Ren min South Road, Chengdu, 610041, China.
| | - Qingxiang Sun
- Department of Pathology, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, 610041, China.
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da Costa-Silva TA, Silva ML, Antar GM, Tempone AG, Lago JHG. Ent-kaurane diterpenes isolated from n-hexane extract of Baccharis sphenophylla by bioactivity-guided fractionation target the acidocalcisomes in Trypanosoma cruzi. Phytomedicine 2021; 93:153748. [PMID: 34628240 DOI: 10.1016/j.phymed.2021.153748] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 09/09/2021] [Accepted: 09/10/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND In the present work the bioactivity-guided fractionation of n-hexane extract from aerial parts of Baccharis sphenophylla (Asteraceae) against trypomastigote forms of Trypanosoma cruzi was performed. PURPOSE To evaluate the antitrypanosomal potential of diterpenes ent‑kaurenoic (1), grandifloric (2). and 15β-tiglinoyloxy‑ent-kaurenoic (3) acids, isolated from n-hexane extract from aerial parts of B. sphenophylla, and elucidate their mechanism of action against T. cruzi. METHODS/STUDY DESIGN: n-Hexane and MeOH extracts from aerial parts of B. sphenophylla were prepared and caused, respectively, 100% and 50% of death of trypomastigote forms of T. cruzi. Based on these results, the n-hexane extract was subjected to bioactivity-guided fractionation procedures to afford three related ent‑kaurane diterpenoids (1-3). Based on spectrofluorometric assays and flow cytometry analysis, the mechanism of action of compounds 1 and 3 was investigated. RESULTS Compounds 1 and 3, isolated from n-hexane extract from aerial parts of B. sphenophylla, showed potent activity against parasites with EC50 values of 10.6 μM (SI > 18.8) and 2.4 μM (SI = 34.8), respectively. On the other hand, compound 2 was inactive against trypomastigotes. In mechanism of action studies using the fluorescent probe SYTOX Green, the plasma membrane permeability was unaltered after treatment with compounds 1 and 3, but compound 1 induced a depolarization of the plasma membrane electric potential (ΔΨp). No substantial alterations were observed in the mitochondria after treatment with compound 3, but a transient hyperpolarization of the mitochondrial membrane potential (ΔΨm) by compound 1. Despite the increased ATP levels induced by compounds 1 and 3, no alterations of ROS and Ca2+ levels were registered. However, both compounds promoted a time-dependent alkalinization of the acidocalcisomes, probably contributing to an osmotic imbalance of the cell. In silico physicochemical studies of compounds 1-3 suggested that lipophilicity and molecular complexity may play an important role in the antitrypanosomal activity. Moreover, no pan-assay interference compounds (PAINS) alerts were detected for compounds 1-3. CONCLUSION Obtained data indicated that the isolated ent‑kaurane diterpenes from n-hexane extract from aerial parts of B. sphenophylla, especially compound 3, could be considered interesting prototypes for further modifications aiming the discovery of new hits against T. cruzi.
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Affiliation(s)
- Thais A da Costa-Silva
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, São Paulo 09210-180, Brazil
| | - Matheus L Silva
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, São Paulo 09210-180, Brazil
| | - Guilherme M Antar
- Department of Botany, Institute of Biosciences, University of São Paulo, São Paulo 05508-090, Brazil
| | - Andre G Tempone
- Center for Parasitology and Mycology, Instituto Adolfo Lutz, São Paulo 01246-902, Brazil.
| | - João Henrique G Lago
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, São Paulo 09210-180, Brazil.
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Wen D, Yang YS, Gao DZ, Wang Z, Jiang QW, Zhao XF. Oridonin Enhances the Anti-Metastasis Effect of Oxaliplatinliplatin on Colorectal Cancer Liver Metastasis. Bull Exp Biol Med 2021; 172:26-32. [PMID: 34792718 DOI: 10.1007/s10517-021-05324-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Indexed: 11/26/2022]
Abstract
The anti-metastasis effect of oridonin in combination with oxaliplatin on colorectal cancer liver metastasis was studied using a BALB/c nude mouse model. The liver condition, bloody ascites, cholestasis, and liver metastasis scores in the three groups receiving oxaliplatin combined with oridonin were significantly milder than in the control group and importantly the anti-migratory effect of oxaliplatin combined with oridonin was obviously the strongest (p<0.05). Oridonin possessed no hepatotoxicity; instead, it effectively alleviated liver injury caused by oxaliplatin. Oridonin alone or in combination with oxaliplatin significantly decreased serum levels of α-fetoprotein and carcinoembryonic antigen. Therefore, oridonin combined with oxaliplatin displays great potential to markedly increase the anti-metastasis effect of oxaliplatin in the treatment of liver metastases of colorectal cancer.
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Affiliation(s)
- D Wen
- Department of General Surgery, Dalian University Affiliated Xinhua Hospital, Dalian, China
| | - Y S Yang
- Department of General Surgery, Dalian University Affiliated Xinhua Hospital, Dalian, China
| | - D Z Gao
- Department of General Surgery, Dalian University Affiliated Xinhua Hospital, Dalian, China
| | - Z Wang
- Department of General Surgery, Dalian University Affiliated Xinhua Hospital, Dalian, China
| | - Q W Jiang
- Department of General Surgery, Dalian University Affiliated Xinhua Hospital, Dalian, China
| | - X F Zhao
- Department of General Surgery, Dalian University Affiliated Xinhua Hospital, Dalian, China.
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Hong MK, Liu HH, Chen GH, Zhu JQ, Zheng SY, Zhao D, Diao J, Jia H, Zhang DD, Chen SX, Gao L, Li J. Oridonin Alters Hepatic Urea Cycle via Gut Microbiota and Protects against Acetaminophen-Induced Liver Injury. Oxid Med Cell Longev 2021; 2021:3259238. [PMID: 34721757 PMCID: PMC8553473 DOI: 10.1155/2021/3259238] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 08/22/2021] [Accepted: 09/11/2021] [Indexed: 12/03/2022]
Abstract
Acetaminophen (APAP) hepatotoxicity is the leading cause of acute liver failure in the western world. Oridonin (OD), which is the major active ingredient of the traditional Chinese medicine Rabdosia rubescens, reportedly exerts anti-inflammatory and antioxidative effects. Here, we first find that OD protects against APAP-induced hepatotoxicity. The results of hepatic tissue-associated RNA-seq and metabolomics showed that the protective effects of OD were dependent upon urea cycle regulation. And such regulation of OD is gut microbiota partly dependent, as demonstrated by fecal microbiota transplantation (FMT). Furthermore, using 16S rRNA sequencing, we determined that OD significantly enriched intestinal Bacteroides vulgatus, which activated the nuclear factor erythroid 2-related factor 2 (Nrf2) pathway to regulate redox homeostasis against APAP by urea cycle. In conclusion, our study suggests that the Bacteroides vulgatus-urea cycle-Nrf2 axis may be a potential target for reducing APAP-induced liver injury, which is altered by OD.
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Affiliation(s)
- Mu-keng Hong
- Department of Rheumatic & TCM Medical Center, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Department of Traditional Chinese Internal Medicine, School of Traditional Chinese Medical, Southern Medical University, Guangzhou, China
| | - Hai-hua Liu
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Gui-hong Chen
- Department of Traditional Chinese Internal Medicine, School of Traditional Chinese Medical, Southern Medical University, Guangzhou, China
| | - Jun-qing Zhu
- Department of Rheumatic & TCM Medical Center, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Song-yuan Zheng
- Department of Rheumatic & TCM Medical Center, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Di Zhao
- Department of Traditional Chinese Internal Medicine, School of Traditional Chinese Medical, Southern Medical University, Guangzhou, China
| | - Jianxing Diao
- Department of Traditional Chinese Internal Medicine, School of Traditional Chinese Medical, Southern Medical University, Guangzhou, China
| | - Hui Jia
- Department of Traditional Chinese Internal Medicine, School of Traditional Chinese Medical, Southern Medical University, Guangzhou, China
| | - Ding-ding Zhang
- Department of Traditional Chinese Internal Medicine, School of Traditional Chinese Medical, Southern Medical University, Guangzhou, China
| | - Shi-xian Chen
- Department of Rheumatic & TCM Medical Center, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Lei Gao
- Department of Traditional Chinese Internal Medicine, School of Traditional Chinese Medical, Southern Medical University, Guangzhou, China
| | - Juan Li
- Department of Rheumatic & TCM Medical Center, Nanfang Hospital, Southern Medical University, Guangzhou, China
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Udomthawee K, Chainok K, Jiajaroen S, Nuntasaen N, Pompimon W. New ent-kaurane-type diterpenoid with cytotoxic activity from Croton mekongensis. J Asian Nat Prod Res 2021; 23:1001-1008. [PMID: 32924603 DOI: 10.1080/10286020.2020.1815714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Accepted: 08/24/2020] [Indexed: 06/11/2023]
Abstract
A new ent-kaurane-type diterpenoid, crotonmekongenin A (1) together with two known compounds, epifriedelanol (2) and sitosterol glucoside (3) from the leaves and twigs of Croton mekongensis were isolated. The structure of these compounds was determined by spectroscopic analysis. The structure of the new ent-kaurane-type diterpenoid (1) was elucidated using spectroscopic technique and X-ray crystallography analysis. Moreover, the cytotoxicity of all extract and isolated compounds was tested for cytotoxicity against KKU-M213, FaDu, HT-29, MDA-MB-231, A-549, SH-SY5Y, and CL cell lines. Compound 1 showed significant cytotoxic activity (ED50) on FaDu (0.48 µg/ml), HT-29 (0.63 µg/ml), and SH-SY5Y (0.45 µg/ml).
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Affiliation(s)
- Kodchaniphar Udomthawee
- Laboratory of Natural Products, Center of Excellence for Innovation in Chemistry, Faculty of Science, Lampang Rajabhat University, Lampang 52100, Thailand
| | - Kittipong Chainok
- Materials and Textile Technology, Faculty of Science and Technology, Thammasat University, Pathum Thani 12121, Thailand
| | - Suwadee Jiajaroen
- Division of Chemistry, Faculty of Science and Technology, Thammasat University, Pathum Thani 12121, Thailand
| | - Narong Nuntasaen
- The Forest Herbarium, Department of National Park, Wildlife and Plant Conservation, Ministry of Natural Resources and Environment, Bangkok 10900, Thailand
| | - Wilart Pompimon
- Laboratory of Natural Products, Center of Excellence for Innovation in Chemistry, Faculty of Science, Lampang Rajabhat University, Lampang 52100, Thailand
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Wang S, Tan KS, Beng H, Liu F, Huang J, Kuai Y, Zhang R, Tan W. Protective effect of isosteviol sodium against LPS-induced multiple organ injury by regulating of glycerophospholipid metabolism and reducing macrophage-driven inflammation. Pharmacol Res 2021; 172:105781. [PMID: 34302975 DOI: 10.1016/j.phrs.2021.105781] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 06/21/2021] [Accepted: 07/20/2021] [Indexed: 12/22/2022]
Abstract
Sepsis is a severe inflammatory disorder that can lead to multiple organ injury. Isosteviol sodium (STV-Na) is a terpenoid derived from stevioside that exerts anti-inflammatory, antioxidant and antiapoptotic activities. However, the influence of STV-Na on sepsis remains unknown. Here, we assessed the potential effects of STV-Na on sepsis and multiple organ injury induced by lipopolysaccharide (LPS). We found that STV-Na increased the survival rate of mice treat with LPS, significantly improved the functions of the heart, lung, liver, and kidney, reduced the production of inflammatory cytokines and decreased macrophage infiltration. Moreover, Multiorgan metabolomics analysis demonstrated that glutathione metabolism, purine metabolism, glycerophospholipid metabolism and pantothenate and CoA biosynthesis, were significantly altered by STV-Na. This study provides novel insights into the metabolite changes of multiple organ injury in septic mice, which may help characterize the underlying mechanism and provide an improved understanding of the therapeutic effects of STV-Na on sepsis.
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Affiliation(s)
- Shanping Wang
- Institute of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China.
| | - Keai Sinn Tan
- College of Pharmacy, Jinan University, Guangzhou 510632, China; Post-Doctoral Innovation Site, Jinan University Affiliation, Yuanzhi Health Technology Co, Ltd, Hengqin New District, Zhuhai, Guangdong 51900, China.
| | - Huimin Beng
- Institute of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China.
| | - Fei Liu
- Institute of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China.
| | - Jiandong Huang
- Institute of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China.
| | - Yihe Kuai
- Institute of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China.
| | - Rui Zhang
- Institute of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China.
| | - Wen Tan
- Post-Doctoral Innovation Site, Jinan University Affiliation, Yuanzhi Health Technology Co, Ltd, Hengqin New District, Zhuhai, Guangdong 51900, China; Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Bandar Sunway 47500, Malaysia.
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Zhu M, Shan J, Xu H, Xia G, Xu Q, Quan K, Liu X, Dai M. Glaucocalyxin A suppresses osteoclastogenesis induced by RANKL and osteoporosis induced by ovariectomy by inhibiting the NF-κB and Akt pathways. J Ethnopharmacol 2021; 276:114176. [PMID: 33933570 DOI: 10.1016/j.jep.2021.114176] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 04/16/2021] [Accepted: 04/26/2021] [Indexed: 06/12/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Glaucocalyxin A (GLA), the most abundant active component of the aboveground sections of Rabdosia japonica (Burm. f.) Hara var. glaucocalyx (Maxim.) Hara, possesses various pharmacological activities, such as antioxidant, antithrombosis, anticoagulation, antibacterial, antitumor, anti-inflammatory activities. According to previous studies, inflammation is closely associated with osteoclast differentiation and activity. Although GLA has demonstrated effective anti-inflammatory properties, its effects on osteoclast differentiation remain unclear. AIM OF THE STUDY To examine the possible inhibitory effects of GLA and its molecular mechanisms in osteogenesis induced by RANKL as well as ovariectomy (OVX)-induced osteoporosis (OP) in mice. MATERIALS AND METHODS Tartrate-resistant acid phosphatase (TRAP) staining, F-actin staining, and a bone resorption pit assay were applied for identifying the effects of GLA on the differentiation of osteoclasts and the function of bone resorption. The mRNA expression of the genes related to osteoclast differentiation was measured by quantitative PCR. Protein expression of nuclear factor of activated T-cells, cytoplasmic 1 (NFATc1), c-fos and phosphorylation of inhibitor of nuclear factor kappa B (IκBα), protein kinase B (AKT), c-Jun N-terminal kinase (JNK), extracellular signal-regulated kinase (ERK), and p38 in RANKL-induced osteoclasts was determined using western blotting. The effect of GLA on OP was studied using a mouse model of OVX. RESULTS At nontoxic concentrations ≤0.5 μM in vitro, GLA suppressed the formation of osteoclasts induced by RANKL with the decreased number and area size of TRAP-positive multinuclear osteoclasts, and the resorption of bone function by reducing F-actin ring number and bone resorption pit areas. It also reduced the expression of the genes specific for osteoclasts, which included genes encoding NFATc1, cathepsin K, c-fos, TRAP, vacuolar-type ATPase d2, and dendritic cell-specific transmembrane protein. Moreover, GLA repressed NF-κB and Akt pathway activation induced by RANKL. Micro-CT analysis of femur samples indicated decreased bone loss and greater trabecular bone density after GLA treatment, which showed that GLA played a protective role by inhibiting bone loss in OVX-induced OP mice in vivo. CONCLUSIONS Our study is the first to show that GLA has significant therapeutic potential in OP, which is the disease of osteoclast increase caused by estrogen deficiency.
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Affiliation(s)
- Meisong Zhu
- Department of Orthopedics, The First Affiliated Hospital of Nanchang University, Artificial Joints Engineering and Technology Research Center of Jiangxi Province, Nanchang, Jiangxi province, 330006, China.
| | - Jing Shan
- Department of Orthopedics, The First Affiliated Hospital of Nanchang University, Artificial Joints Engineering and Technology Research Center of Jiangxi Province, Nanchang, Jiangxi province, 330006, China.
| | - Huaen Xu
- Department of Orthopedics, The First Affiliated Hospital of Nanchang University, Artificial Joints Engineering and Technology Research Center of Jiangxi Province, Nanchang, Jiangxi province, 330006, China.
| | - Guoming Xia
- Department of Orthopedics, The First Affiliated Hospital of Nanchang University, Artificial Joints Engineering and Technology Research Center of Jiangxi Province, Nanchang, Jiangxi province, 330006, China.
| | - Qiang Xu
- Department of Orthopedics, The First Affiliated Hospital of Nanchang University, Artificial Joints Engineering and Technology Research Center of Jiangxi Province, Nanchang, Jiangxi province, 330006, China.
| | - Kun Quan
- Department of Orthopedics, The First Affiliated Hospital of Nanchang University, Artificial Joints Engineering and Technology Research Center of Jiangxi Province, Nanchang, Jiangxi province, 330006, China.
| | - Xuqiang Liu
- Department of Orthopedics, The First Affiliated Hospital of Nanchang University, Artificial Joints Engineering and Technology Research Center of Jiangxi Province, Nanchang, Jiangxi province, 330006, China.
| | - Min Dai
- Department of Orthopedics, The First Affiliated Hospital of Nanchang University, Artificial Joints Engineering and Technology Research Center of Jiangxi Province, Nanchang, Jiangxi province, 330006, China.
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Biney RP, Benneh CK, Adongo DW, Ameyaw EO, Woode E. Evidence of an antidepressant-like effect of xylopic acid mediated by serotonergic mechanisms. Psychopharmacology (Berl) 2021; 238:2105-2120. [PMID: 33837810 DOI: 10.1007/s00213-021-05835-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Accepted: 03/22/2021] [Indexed: 10/21/2022]
Abstract
BACKGROUND Depression causes significant debilitating symptoms and economic burden. Current management is challenged by slow onset of action and modest efficacies of antidepressants; thus, the search for newer antidepressants remains relevant. We evaluated the antidepressant effects of a kaurene diterpene, xylopic acid (XA), in zebrafish and mouse models. METHODS The chronic unpredictable stress (CUS) protocol in zebrafish and the tail suspension test (TST), forced swim test (FST), lipopolysaccharide-induced depression-like behaviour test (LID) and repeated open space swimming test (OSST) in mice were used. We further examined the impact of depleting monoamines on XA's antidepressant effects. The contribution of glutamatergic and nitrergic pathways on the antidepressant effect of XA in mice and XA's effects on 5-HT receptors and monoamine oxidase (MAO) enzymes were also evaluated. Finally, XA's influence on neuroprotection was evaluated by measuring BDNF and oxidative stress enzymes in whole brain. XA doses (1-10 μM) in zebrafish and (10, 30, 100 mg kg-1) in mice exerted potent antidepressant-like potential in FST, TST, LID and showed fast-onset antidepressant-like property in the OSST. RESULTS The antidepressant-like properties in mice were reversed by blocking synthesis/release of serotonin but not noradrenaline using p-chlorophenylalanine and α-methyl-p-tyrosine, respectively. This antidepressant-like effect was potentiated by D-cycloserine and Nω-Nitro-L-arginine methyl ester (L-NAME) but not by D-serine and L-arginine. XA also evoked partial agonist-like effects on 5-hydroxytrptamine receptors on the rat fundus but it did not have MAO inhibition effect. It also increased BDNF, glutathione and antioxidant enzymes. CONCLUSION Therefore, xylopic acid possesses antidepressant-like effects largely mediated by serotonergic and neuroprotective mechanisms.
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Affiliation(s)
- Robert Peter Biney
- Department of Pharmacology, School of Medical Sciences, University of Cape Coast, Cape Coast, Ghana.
- School of Pharmacy and Pharmaceutical Sciences, University of Cape Coast, Cape Coast, Ghana.
| | - Charles Kwaku Benneh
- Department of Pharmacology and Toxicology, School of Pharmacy, University of Health and Allied Sciences, Ho, Ghana
| | - Donatus Wewura Adongo
- Department of Pharmacology and Toxicology, School of Pharmacy, University of Health and Allied Sciences, Ho, Ghana
| | - Elvis Ofori Ameyaw
- School of Pharmacy and Pharmaceutical Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Eric Woode
- Department of Pharmacology and Toxicology, School of Pharmacy, University of Health and Allied Sciences, Ho, Ghana
- Department of Pharmacology, Faculty of Pharmacy and Pharmaceutical Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
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Pruteanu E, Gîrbu V, Ungur N, Persoons L, Daelemans D, Renaud P, Kulcițki V. Preparation of Antiproliferative Terpene-Alkaloid Hybrids by Free Radical-Mediated Modification of ent-Kauranic Derivatives. Molecules 2021; 26:4549. [PMID: 34361708 PMCID: PMC8347134 DOI: 10.3390/molecules26154549] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 07/18/2021] [Accepted: 07/19/2021] [Indexed: 11/16/2022] Open
Abstract
A convenient strategy for molecular editing of available ent-kauranic natural scaffolds has been developed based on radical mediated C-C bond formation. Iodine atom transfer radical addition (ATRA) followed by rapid ionic elimination and radical azidoalkylation were investigated. Both reactions involve radical addition to the exo-methylenic double bond of the parent substrate. Easy transformations of the obtained adducts lead to extended diterpenes of broad structural diversity and artificial diterpene-alkaloid hybrids possessing lactam and pyrrolidine pharmacophores. The cytotoxicity of selected diterpenic derivatives was examined by in vitro testing on several tumor cell lines. The terpene-alkaloid hybrids containing N-heterocycles with unprecedented spiro-junction have shown relevant cytotoxicity and promising selectivity indexes. These results represent a solid basis for following research on the synthesis of such derivatives based on available natural product templates.
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Affiliation(s)
- Elena Pruteanu
- Institute of Chemistry (MECC), Str. Academiei, 3, MD-2028 Chișinău, Moldova; (E.P.); (V.G.); (N.U.)
- Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland
| | - Vladilena Gîrbu
- Institute of Chemistry (MECC), Str. Academiei, 3, MD-2028 Chișinău, Moldova; (E.P.); (V.G.); (N.U.)
| | - Nicon Ungur
- Institute of Chemistry (MECC), Str. Academiei, 3, MD-2028 Chișinău, Moldova; (E.P.); (V.G.); (N.U.)
| | - Leentje Persoons
- KU Leuven, Department of Microbiology, Immunology and Transplantation, Laboratory of Virology and Chemotherapy, Rega Institute for Medical Research, Herestraat 49, 3000 Leuven, Belgium; (L.P.); (D.D.)
| | - Dirk Daelemans
- KU Leuven, Department of Microbiology, Immunology and Transplantation, Laboratory of Virology and Chemotherapy, Rega Institute for Medical Research, Herestraat 49, 3000 Leuven, Belgium; (L.P.); (D.D.)
| | - Philippe Renaud
- Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland
| | - Veaceslav Kulcițki
- Institute of Chemistry (MECC), Str. Academiei, 3, MD-2028 Chișinău, Moldova; (E.P.); (V.G.); (N.U.)
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Mahendran R, Lim SK, Ong KC, Chua KH, Chai HC. Natural-derived compounds and their mechanisms in potential autosomal dominant polycystic kidney disease (ADPKD) treatment. Clin Exp Nephrol 2021; 25:1163-1172. [PMID: 34254206 DOI: 10.1007/s10157-021-02111-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Accepted: 07/06/2021] [Indexed: 12/25/2022]
Abstract
BACKGROUND Autosomal dominant polycystic kidney disease (ADPKD) is a monogenic kidney disorder that impairs renal functions progressively leading to kidney failure. The disease affects between 1:400 and 1:1000 ratio of the people worldwide. It is caused by the mutated PKD1 and PKD2 genes which encode for the defective polycystins. Polycystins mimic the receptor protein or protein channel and mediate aberrant cell signaling that causes cystic development in the renal parenchyma. The cystic development is driven by the increased cyclic AMP stimulating fluid secretion and infinite cell growth. In recent years, natural product-derived small molecules or drugs targeting specific signaling pathways have caught attention in the drug discovery discipline. The advantages of natural products over synthetic drugs enthusiast researchers to utilize the medicinal benefits in various diseases including ADPKD. CONCLUSION Overall, this review discusses some of the previously studied and reported natural products and their mechanisms of action which may potentially be redirected into ADPKD.
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Affiliation(s)
- Rhubaniya Mahendran
- Department of Biomedical Science, Faculty of Medicine, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Soo Kun Lim
- Renal Division, Department of Medicine, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Kien Chai Ong
- Department of Biomedical Science, Faculty of Medicine, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Kek Heng Chua
- Department of Biomedical Science, Faculty of Medicine, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Hwa Chia Chai
- Department of Biomedical Science, Faculty of Medicine, University of Malaya, 50603, Kuala Lumpur, Malaysia.
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Che X, Zhan J, Zhao F, Zhong Z, Chen M, Han R, Wang Y. Oridonin Promotes Apoptosis and Restrains the Viability and Migration of Bladder Cancer by Impeding TRPM7 Expression via the ERK and AKT Signaling Pathways. Biomed Res Int 2021; 2021:4340950. [PMID: 34285910 PMCID: PMC8275389 DOI: 10.1155/2021/4340950] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 04/01/2021] [Accepted: 06/04/2021] [Indexed: 12/12/2022]
Abstract
BACKGROUND Oridonin is a powerful anticancer compound found in Rabdosia rubescens. However, its potential impact on bladder cancer remains uninvestigated. In this work, we aimed to detect the anticancer effect of oridonin on bladder cancer and explore the molecular mechanisms involved. METHODS The anticancer activity of oridonin was assessed in vitro with a CCK8 assay, an annexin V-FITC apoptosis analysis, and colony formation and Transwell migration assays which were performed with the human bladder cancer cell line T24. Levels of apoptosis-related proteins, melastatin transient receptor potential channel 7 (TRPM7), and signaling molecules were examined in oridonin-treated T24 cells by western blotting or RT-PCR. Oridonin anticancer efficacy was further validated in vivo with a T24 xenograft mouse model. RESULTS Oridonin repressed the proliferative, colony-forming, and migratory capacities of T24 cells, triggered extensive apoptosis in vitro, and retarded tumor growth in vivo. Moreover, oridonin treatment significantly increased expression levels of p53 and cleaved caspase-3 and reduced expression of TRPM7, p-AKT, and p-ERK. CONCLUSION Oridonin exhibited outstanding antiproliferative and antimigratory effects on bladder cancer, and these effects were at least partially associated with targeting of TRPM7 through inactivation of the ERK and AKT signaling pathways. These findings provide insight for the clinical application of oridonin in bladder cancer prevention.
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Affiliation(s)
- Xianping Che
- Department of Urology, The Second Affiliated Hospital of Hainan Medical University, 570311 Hainan, China
| | - Jiangtao Zhan
- Department of Urology, The Second Affiliated Hospital of Hainan Medical University, 570311 Hainan, China
| | - Fan Zhao
- Department of Urology, The Second Affiliated Hospital of Hainan Medical University, 570311 Hainan, China
| | - Zunhe Zhong
- Department of Urology, The Second Affiliated Hospital of Hainan Medical University, 570311 Hainan, China
| | - Mianchuan Chen
- Department of Urology, The Second Affiliated Hospital of Hainan Medical University, 570311 Hainan, China
| | - Ruifa Han
- Department of Urology, The Second Hospital of Tianjin Medical University, Tianjin Institute of Urology, 300211 Tianjin, China
| | - Yi Wang
- Department of Urology, The Second Affiliated Hospital of Hainan Medical University, 570311 Hainan, China
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Zhang CY, Lin SQ, Liu FY, Ma JH, Jia FJ, Han Z, Xie WD, Li X. The anti-inflammatory effect of ent-kaur-15-en-17-al-18-oic acid on lipopolysaccharide-stimulated RAW264.7 cells associated with NF-κB and P38/MAPK pathways. J Asian Nat Prod Res 2021; 23:570-583. [PMID: 32603193 DOI: 10.1080/10286020.2020.1786371] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 06/18/2020] [Accepted: 06/18/2020] [Indexed: 06/11/2023]
Abstract
Ent-kaur-15-en-17-al-18-oic acid (LL-3) was demonstrated that it can inhibit LPS-induced nitric oxide (NO) production and macrophage migration, maintain homeostasis of oxidative stress, including increased mitochondrial membrane potential (MMP), decreased levels of reactive oxygen species (ROS) and malondialdehyde (MDA), and maintenance of superoxide dismutase (SOD) and glutathione (GSH) activities and inhibit oxidative stress-induced P38 and nuclear factor κB (NF-κB) pathways to decrease inducible nitric oxide synthase (iNOS), cyclooxygense-2 (COX-2), and tumour necrosis factor (TNF)-α mRNA expressions without marked cytotoxicity. These findings revealed that LL-3 could serve as a candidate lead compound for further studying anti-inflammatory therapies.[Formula: see text].
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Affiliation(s)
- Cai-Yun Zhang
- Marine College, Shandong University, Weihai 264209, China
| | - Shi-Qi Lin
- Marine College, Shandong University, Weihai 264209, China
| | - Fang-Yuan Liu
- Marine College, Shandong University, Weihai 264209, China
| | - Jia-Hui Ma
- Marine College, Shandong University, Weihai 264209, China
| | - Fu-Juan Jia
- Marine College, Shandong University, Weihai 264209, China
| | - Zhuo Han
- Marine College, Shandong University, Weihai 264209, China
| | - Wei-Dong Xie
- Marine College, Shandong University, Weihai 264209, China
| | - Xia Li
- Marine College, Shandong University, Weihai 264209, China
- School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China
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Li M, Zhang Y, Qiu S, Zhuang W, Jiang W, Wang C, Zhang S, Zhou Z, Sun T, Ke Z, Guo W, Qiao Y, Shi X. Oridonin ameliorates noise-induced hearing loss by blocking NLRP3 - NEK7 mediated inflammasome activation. Int Immunopharmacol 2021; 95:107576. [PMID: 33770730 DOI: 10.1016/j.intimp.2021.107576] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 03/03/2021] [Accepted: 03/08/2021] [Indexed: 12/26/2022]
Abstract
Inflammation is involved in noise-induced hearing loss (NIHL), but the mechanism is still unknown. The NOD-like receptor family pyrin domain containing 3 (NLRP3) inflammasome, which triggers the inflammatory cascade, has been implicated in several inflammatory diseases in response to oxidative stress. However, whether the NLRP3 inflammasome is a key factor for permanent NIHL is still unknown. In this study, quantitative real-time polymerase chain reaction (qPCR), western blot, and enzyme-linked immunosorbent assays (ELISAs) demonstrated that the expression levels of activated caspase-1, interleukin (IL)-1β, IL-18, and NLRP3 were significantly increased in the cochleae of mice exposed to broadband noise (120 dB) for 4 h, compared with the control group. These results indicate that the activation of inflammasomes in the cochleae of mice during the pathological process of NIHL as well as NLRP3, a sensor protein of reactive oxygen species (ROS), may be key factors for inflammasome assembly and subsequent inflammation in cochleae. Moreover, many recent studies have revealed that NEK7 is an important component and regulator of NLRP3 inflammasomes by interacting with NLRP3 directly and that these interactions can be interrupted by oridonin. Here, we further determined that treatment with oridonin could indeed interrupt the interaction between NLRP3 and NEK7 as well as inhibit the downstream inflammasome activation in mouse cochleae after noise exposure. Furthermore, we tested anakinra, another inflammatory inhibitor, and it was shown to partially alleviate the degree of hearing impairment in some frequencies in an NIHL mouse model. These discoveries suggest that inhibiting NLRP3 inflammasomes and the downstream signaling pathway may provide a new strategy for the clinical treatment of NIHL.
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Affiliation(s)
- Menghua Li
- Department of Otolaryngology, The Second Clinical Medical College, Jinan University (Shenzhen People's Hospital), Shenzhen 518020, China; The First Affiliated Hospital, Jinan University, Guangzhou 510632, China; The Institute of Audiology and Balance Science of Xu zhou Medical University, Xuzhou 221004, China
| | - Yan Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, First Hospital of Jilin University, Changchun, Jilin 130021, China
| | - Shiwei Qiu
- The Institute of Audiology and Balance Science of Xu zhou Medical University, Xuzhou 221004, China; Department of Otolaryngology-Head & Neck Surgery, Institute of Otolaryngology of PLA, Chinese PLA General Hospital, Beijing 100853, China
| | - Wei Zhuang
- The Institute of Audiology and Balance Science of Xu zhou Medical University, Xuzhou 221004, China
| | - Wen Jiang
- The Institute of Audiology and Balance Science of Xu zhou Medical University, Xuzhou 221004, China
| | - Caiji Wang
- The Institute of Audiology and Balance Science of Xu zhou Medical University, Xuzhou 221004, China
| | - Shili Zhang
- The Institute of Audiology and Balance Science of Xu zhou Medical University, Xuzhou 221004, China
| | - Zijun Zhou
- The Institute of Audiology and Balance Science of Xu zhou Medical University, Xuzhou 221004, China
| | - Tiantian Sun
- The Institute of Audiology and Balance Science of Xu zhou Medical University, Xuzhou 221004, China
| | - Zhaoyang Ke
- Department of Otolaryngology, The Second Clinical Medical College, Jinan University (Shenzhen People's Hospital), Shenzhen 518020, China; The First Affiliated Hospital, Jinan University, Guangzhou 510632, China
| | - Weiwei Guo
- Department of Otolaryngology-Head & Neck Surgery, Institute of Otolaryngology of PLA, Chinese PLA General Hospital, Beijing 100853, China.
| | - Yuehua Qiao
- The Institute of Audiology and Balance Science of Xu zhou Medical University, Xuzhou 221004, China; Artificial Auditory Laboratory of Jiangsu Province, Xu zhou Medical University, Xuzhou 221002, China.
| | - Xi Shi
- The Institute of Audiology and Balance Science of Xu zhou Medical University, Xuzhou 221004, China.
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Lei Y, Li Y, Tan Y, Qian Z, Zhou Q, Jia D, Sun Q. Novel Mechanistic Observations and NES-Binding Groove Features Revealed by the CRM1 Inhibitors Plumbagin and Oridonin. J Nat Prod 2021; 84:1478-1488. [PMID: 33890470 DOI: 10.1021/acs.jnatprod.0c01231] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The protein chromosome region maintenance 1 (CRM1) is an important nuclear export factor and drug target in diseases such as cancer and viral infections. Several plant-derived CRM1 inhibitors including plumbagin and oridonin possess potent antitumor activities. However, their modes of CRM1 inhibition remain unclear. Here, a multimutant CRM1 was engineered to enable crystallization of these two small molecules in its NES groove. Plumbagin and oridonin share the same three conjugation sites in CRM1. In solution, these two inhibitors targeted more CRM1 sites and inhibited its activity through promoting its aggregation, in addition to directly targeting the NES groove. While the plumbagin-bound NES groove resembles the NES-bound groove state, the oridonin complex reveals for the first time a more open NES groove. The observed greater NES groove dynamics may improve cargo loading through a "capture-and-tighten" mechanism. This work thus provides new insights on the mechanism of CRM1 inhibition by two natural products and a structural basis for further development of these or other CRM1 inhibitors.
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Affiliation(s)
- Yuqin Lei
- Department of Pathology, State Key Laboratory of Biotherapy and Cancer Centre, West China Hospital, Sichuan University, and Collaborative Innovation Centre of Biotherapy, Chengdu 610041, People's Republic of China
| | - Yuling Li
- Department of Pathology, State Key Laboratory of Biotherapy and Cancer Centre, West China Hospital, Sichuan University, and Collaborative Innovation Centre of Biotherapy, Chengdu 610041, People's Republic of China
| | - Yuping Tan
- Department of Pathology, State Key Laboratory of Biotherapy and Cancer Centre, West China Hospital, Sichuan University, and Collaborative Innovation Centre of Biotherapy, Chengdu 610041, People's Republic of China
| | - Zhiyong Qian
- Department of Pathology, State Key Laboratory of Biotherapy and Cancer Centre, West China Hospital, Sichuan University, and Collaborative Innovation Centre of Biotherapy, Chengdu 610041, People's Republic of China
| | - Qiao Zhou
- Department of Pathology, State Key Laboratory of Biotherapy and Cancer Centre, West China Hospital, Sichuan University, and Collaborative Innovation Centre of Biotherapy, Chengdu 610041, People's Republic of China
| | - Da Jia
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Department of Pediatrics, Division of Neurology, West China Second University Hospital, Sichuan University, Chengdu 610041, People's Republic of China
| | - Qingxiang Sun
- Department of Pathology, State Key Laboratory of Biotherapy and Cancer Centre, West China Hospital, Sichuan University, and Collaborative Innovation Centre of Biotherapy, Chengdu 610041, People's Republic of China
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Zhang C, Ma K, Yang Y, Wang F, Li W. Glaucocalyxin A suppresses inflammatory responses and induces apoptosis in TNF-a-induced human rheumatoid arthritis via modulation of the STAT3 pathway. Chem Biol Interact 2021; 341:109451. [PMID: 33798506 DOI: 10.1016/j.cbi.2021.109451] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 03/14/2021] [Accepted: 03/21/2021] [Indexed: 12/12/2022]
Abstract
The pathogenesis of rheumatoid arthritis (RA) is characterized by synoviocyte hyperplasia and proinflammatory cytokine secretion, as well as the destruction of cartilage and bone. Glaucocalyxin A (GLA) is an alkaloid derived from a Chinese medicinal plant that exhibits anti-inflammatory, anti-tumor and neuroprotective properties. We investigated the effects of GLA on RA-fibroblast-like synoviocytes (FLS cells), and collagen-induced arthritis (CIA), and further explored the underlying mechanisms. GLA inhibited TNF-a-induced RA-FLS proliferation, increased apoptotic ratios and upregulated levels of caspase-3, cleaved PARP, and Bax. GLA also inhibited the expression of IL-10, IL-1β, and IL-6 in vitro. Levels of p-STAT3 were downregulated in a dose-dependent manner. Over-expression of STAT3 partly neutralized the GLA-mediated elevation of caspase-3 and cleaved PARP levels as well as the downregulation of IL-10, IL-1B and IL-6 expression levels. This suggests that GLA inactivated the STAT3 pathway. Furthermore, the production of inflammatory cytokines in RA-FLS and a CIA rat model were inhibited effectively by GLA. Taken together, our data suggest that GLA is a potential long-term therapeutic agent for patients with RA.
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MESH Headings
- Animals
- Anti-Inflammatory Agents, Non-Steroidal/pharmacology
- Apoptosis/drug effects
- Arthritis, Experimental/drug therapy
- Arthritis, Experimental/pathology
- Arthritis, Rheumatoid/drug therapy
- Arthritis, Rheumatoid/metabolism
- Arthritis, Rheumatoid/pathology
- CD4-Positive T-Lymphocytes/drug effects
- Cell Differentiation/drug effects
- Cell Proliferation/drug effects
- Cells, Cultured
- Cytokines/metabolism
- Diterpenes, Kaurane/pharmacology
- Humans
- Inflammation/drug therapy
- Inflammation/metabolism
- Inflammation/pathology
- Male
- Mice, Inbred DBA
- Rats, Wistar
- STAT3 Transcription Factor/genetics
- STAT3 Transcription Factor/metabolism
- Synoviocytes/drug effects
- Synoviocytes/metabolism
- Synoviocytes/pathology
- Th17 Cells/drug effects
- Th17 Cells/physiology
- Tumor Necrosis Factor-alpha/pharmacology
- Mice
- Rats
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Affiliation(s)
- Chuan Zhang
- Orthopedic Hospital of Henan Province & Orthopedic Institute of Henan Province, Luoyang, Henan, 471002, PR China
| | - Kun Ma
- Orthopedic Hospital of Henan Province & Orthopedic Institute of Henan Province, Luoyang, Henan, 471002, PR China
| | - Yanmei Yang
- Orthopedic Hospital of Henan Province & Orthopedic Institute of Henan Province, Luoyang, Henan, 471002, PR China
| | - Fuqiang Wang
- Anyang Cancer Hospital, Anyang, Henan, 455000, PR China
| | - Wuyin Li
- Orthopedic Hospital of Henan Province & Orthopedic Institute of Henan Province, Luoyang, Henan, 471002, PR China.
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Herrera-Acevedo C, Flores-Gaspar A, Scotti L, Mendonça-Junior FJB, Scotti MT, Coy-Barrera E. Identification of Kaurane-Type Diterpenes as Inhibitors of Leishmania Pteridine Reductase I. Molecules 2021; 26:molecules26113076. [PMID: 34063939 PMCID: PMC8196580 DOI: 10.3390/molecules26113076] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 05/18/2021] [Accepted: 05/18/2021] [Indexed: 12/16/2022] Open
Abstract
The current treatments against Leishmania parasites present high toxicity and multiple side effects, which makes the control and elimination of leishmaniasis challenging. Natural products constitute an interesting and diverse chemical space for the identification of new antileishmanial drugs. To identify new drug options, an in-house database of 360 kauranes (tetracyclic diterpenes) was generated, and a combined ligand- and structure-based virtual screening (VS) approach was performed to select potential inhibitors of Leishmania major (Lm) pteridine reductase I (PTR1). The best-ranked kauranes were employed to verify the validity of the VS approach through LmPTR1 enzyme inhibition assay. The half-maximal inhibitory concentration (IC50) values of selected bioactive compounds were examined using the random forest (RF) model (i.e., 2β-hydroxy-menth-6-en-5β-yl ent-kaurenoate (135) and 3α-cinnamoyloxy-ent-kaur-16-en-19-oic acid (302)) were below 10 μM. A compound similar to 302, 3α-p-coumaroyloxy-ent-kaur-16-en-19-oic acid (302a), was also synthesized and showed the highest activity against LmPTR1. Finally, molecular docking calculations and molecular dynamics simulations were performed for the VS-selected, most-active kauranes within the active sites of PTR1 hybrid models, generated from three Leishmania species that are known to cause cutaneous leishmaniasis in the new world (i.e., L. braziliensis, L. panamensis, and L. amazonensis) to explore the targeting potential of these kauranes to other species-dependent variants of this enzyme.
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Affiliation(s)
- Chonny Herrera-Acevedo
- Post-Graduate Program in Natural and Synthetic Bioactive Products, Federal University of Paraíba, João Pessoa 58051-900, PB, Brazil; (C.H.-A.); (L.S.)
- Bioorganic Chemistry Laboratory, Facultad de Ciencias Básicas y Aplicadas, Universidad Militar Nueva Granada, Cajicá 250247, Colombia;
| | - Areli Flores-Gaspar
- Departamento de Química, Facultad de Ciencias Básicas y Aplicadas, Universidad Militar Nueva Granada, Cajicá 250247, Colombia
- Correspondence: (A.F.-G.); (M.T.S.); Tel.: +57-1-650-00-00 (ext. 1526) (A.F.-G.); +55-83-99869-0415 (M.T.S.)
| | - Luciana Scotti
- Post-Graduate Program in Natural and Synthetic Bioactive Products, Federal University of Paraíba, João Pessoa 58051-900, PB, Brazil; (C.H.-A.); (L.S.)
| | | | - Marcus Tullius Scotti
- Post-Graduate Program in Natural and Synthetic Bioactive Products, Federal University of Paraíba, João Pessoa 58051-900, PB, Brazil; (C.H.-A.); (L.S.)
- Correspondence: (A.F.-G.); (M.T.S.); Tel.: +57-1-650-00-00 (ext. 1526) (A.F.-G.); +55-83-99869-0415 (M.T.S.)
| | - Ericsson Coy-Barrera
- Bioorganic Chemistry Laboratory, Facultad de Ciencias Básicas y Aplicadas, Universidad Militar Nueva Granada, Cajicá 250247, Colombia;
- Departamento de Química, Facultad de Ciencias Básicas y Aplicadas, Universidad Militar Nueva Granada, Cajicá 250247, Colombia
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50
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Chen J, Zhang W, Pan C, Fan J, Zhong X, Tang S. Glaucocalyxin A induces cell cycle arrest and apoptosis via inhibiting NF-κB/p65 signaling pathway in melanoma cells. Life Sci 2021; 271:119185. [PMID: 33577846 DOI: 10.1016/j.lfs.2021.119185] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Revised: 01/26/2021] [Accepted: 01/28/2021] [Indexed: 02/05/2023]
Abstract
AIMS Melanoma is a malignant tumor of the skin with a high metastasis rate and poor prognosis. Glaucocalyxin A (GLA), isolated from Rabdosia japonica, is a diterpenoid compound with anticancer properties. Here, we investigated the anticancer properties and explored the mechanisms underlying GLA activity in melanoma cells in vitro and in vivo. MAIN METHODS Cell Counting Kit-8 and colony formation assays were used to assess the effects of GLA on cell proliferation. Flow cytometry was used to evaluate the cell cycle, apoptosis, mitochondrial membrane potential (MMP), and reactive oxygen species (ROS), and western blot analysis and immunofluorescence staining were used to examine protein expression. Immunohistochemical analysis was performed to examine animal tissues and tumors in mice. KEY FINDINGS GLA could effectively inhibit cell proliferation and induce cell apoptosis. GLA induced an overproduction of cellular ROS, decreased MMP, and upregulated the Bax/Bcl-2 ratio, which is an indicator of apoptosis. Phosphorylation of nuclear factor κB (NF-κB)/p65 and NF-κB/p65 nuclear expression decreased after GLA treatment in vitro and in vivo, suggesting that the anticancer effects of GLA are mediated through the NF-κB/p65 pathway. Moreover, we observed that GLA was effective in inhibiting tumor growth without obvious toxicity to major organs in mice. SIGNIFICANCE This is the first study to show that GLA inhibits cell proliferation, arrests the cell cycle in the G2/M phase, and induces mitochondrial apoptosis via the NF-κB/p65 pathway in melanoma cells. Overall, our results demonstrate that GLA may be a potential anticancer agent for the treatment of melanoma.
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Affiliation(s)
- Jiasheng Chen
- Department of Burns and Plastic Surgery, The Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, PR China
| | - Wancong Zhang
- Department of Burns and Plastic Surgery, The Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, PR China
| | - Chen Pan
- Department of Chemistry, Shantou University Medical College, Shantou, Guangdong, PR China
| | - Jufeng Fan
- Department of Plastic and Reconstructive Surgery, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, PR China.
| | - Xiaoping Zhong
- Department of Burns and Plastic Surgery, The Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, PR China.
| | - Shijie Tang
- Department of Burns and Plastic Surgery, The Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, PR China.
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