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Zhan L, Su F, Li Q, Wen Y, Wei F, He Z, Chen X, Yin X, Wang J, Cai Y, Gong Y, Chen Y, Ma X, Zeng J. Phytochemicals targeting glycolysis in colorectal cancer therapy: effects and mechanisms of action. Front Pharmacol 2023; 14:1257450. [PMID: 37693915 PMCID: PMC10484417 DOI: 10.3389/fphar.2023.1257450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Accepted: 08/10/2023] [Indexed: 09/12/2023] Open
Abstract
Colorectal cancer (CRC) is the third most common malignant tumor in the world, and it is prone to recurrence and metastasis during treatment. Aerobic glycolysis is one of the main characteristics of tumor cell metabolism in CRC. Tumor cells rely on glycolysis to rapidly consume glucose and to obtain more lactate and intermediate macromolecular products so as to maintain growth and proliferation. The regulation of the CRC glycolysis pathway is closely associated with several signal transduction pathways and transcription factors including phosphatidylinositol 3-kinases/protein kinase B/mammalian target of rapamycin (PI3K/AKT/mTOR), adenosine 5'-monophosphate (AMP)-activated protein kinase (AMPK), hypoxia-inducible factor-1 (HIF-1), myc, and p53. Targeting the glycolytic pathway has become one of the key research aspects in CRC therapy. Many phytochemicals were shown to exert anti-CRC activity by targeting the glycolytic pathway. Here, we review the effects and mechanisms of phytochemicals on CRC glycolytic pathways, providing a new method of drug development.
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Affiliation(s)
- Lu Zhan
- Department of Oncology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Fangting Su
- Department of Oncology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Qiang Li
- Department of Oncology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yueqiang Wen
- School of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Feng Wei
- Department of Oncology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Zhelin He
- Guang’an Hospital of Traditional Chinese Medicine, Guang’an, China
| | - Xiaoyan Chen
- Guang’an Hospital of Traditional Chinese Medicine, Guang’an, China
| | - Xiang Yin
- Guang’an Hospital of Traditional Chinese Medicine, Guang’an, China
| | - Jian Wang
- Guang’an Hospital of Traditional Chinese Medicine, Guang’an, China
| | - Yilin Cai
- Department of Oncology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yuxia Gong
- Department of Oncology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yu Chen
- Department of Oncology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xiao Ma
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jinhao Zeng
- Department of Gastroenterology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
- TCM Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
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Yang C, Li Y, Zhang Y, Hu Q, Liu Y, Li YF, Shi HC, Song LL, Cao H, Hao XJ, Zhi XY. Natural Sesquiterpene Lactone as Source of Discovery of Novel Fungicidal Candidates: Structural Modification and Antifungal Activity Evaluation of Xanthatin Derived from Xanthium strumarium L. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023. [PMID: 37449982 DOI: 10.1021/acs.jafc.3c02435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/18/2023]
Abstract
As part of our ongoing efforts to discover novel agricultural fungicidal candidates from natural sesquiterpene lactones, in the present work, sixty-three xanthatin-based derivatives containing a arylpyrazole, arylimine, thio-acylamino, oxime, oxime ether, or oxime ester moiety were synthesized. Their structures were well characterized by 1H and 13C nuclear magnetic resonance and high-resolution mass spectrometry, while the absolute configurations of compounds 5' and 6a were further determined by single-crystal X-ray diffraction. Meanwhile, the antifungal activities of the prepared compounds against several phytopathogenic fungi were investigated using the spore germination method and the mycelium growth rate method in vitro. The bioassay results illustrated that compounds 5, 5', and 15 exhibited excellent inhibitory activity against the tested fungal spores and displayed remarkable inhibitory effects on fungal mycelia. Compounds 5 and 5' exhibited more potent inhibitory activity (IC50 = 1.1 and 24.8 μg/mL, respectively) against the spore of Botrytis cinerea than their precursor xanthatin (IC50 = 37.6 μg/mL), wherein the antifungal activity of compound 5 was 34-fold higher than that of xanthatin and 71-fold higher than that of the positive control, difenoconazole (IC50 = 78.5 μg/mL). Notably, compound 6'a also demonstrated broad-spectrum inhibitory activity against the four tested fungal spores. Meanwhile, compounds 2, 5, 8, and 15 showed prominent inhibitory activity against the mycelia of Cytospora mandshurica with the EC50 values of 2.3, 11.7, 11.1, and 3.0 μg/mL, respectively, whereas the EC50 value of xanthatin was 14.8 μg/mL. Additionally, compounds 5' and 15 exhibited good in vivo therapeutic and protective effects against B. cinerea with values of 55.4 and 62.8%, respectively. The preliminary structure-activity relationship analysis revealed that the introduction of oxime, oxime ether, or oxime ester structural fragment at the C-4 position of xanthatin or the introduction of a chlorine atom at the C-3 position of xanthatin might be significantly beneficial to antifungal activity. In conclusion, the comprehensive investigation indicated that partial xanthatin-based derivatives from this study could be considered for further exploration as potential lead structures toward developing novel fungicidal candidates for crop protection.
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Affiliation(s)
- Chun Yang
- Shanxi Key Laboratory of Integrated Pest Management in Agriculture, College of Plant Protection, Shanxi Agricultural University, Taigu 030801, Shanxi Province, P. R. China
- Shanxi Key Laboratory for Modernization of TCVM, College of Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, Shanxi Province, P. R. China
| | - Yang Li
- Shanxi Key Laboratory of Integrated Pest Management in Agriculture, College of Plant Protection, Shanxi Agricultural University, Taigu 030801, Shanxi Province, P. R. China
| | - Yuan Zhang
- Shanxi Key Laboratory of Integrated Pest Management in Agriculture, College of Plant Protection, Shanxi Agricultural University, Taigu 030801, Shanxi Province, P. R. China
| | - Qiang Hu
- Shanxi Key Laboratory of Integrated Pest Management in Agriculture, College of Plant Protection, Shanxi Agricultural University, Taigu 030801, Shanxi Province, P. R. China
| | - Ying Liu
- Shanxi Key Laboratory of Integrated Pest Management in Agriculture, College of Plant Protection, Shanxi Agricultural University, Taigu 030801, Shanxi Province, P. R. China
| | - Yang-Fan Li
- Shanxi Key Laboratory of Integrated Pest Management in Agriculture, College of Plant Protection, Shanxi Agricultural University, Taigu 030801, Shanxi Province, P. R. China
| | - Hong-Cheng Shi
- Shanxi Key Laboratory of Integrated Pest Management in Agriculture, College of Plant Protection, Shanxi Agricultural University, Taigu 030801, Shanxi Province, P. R. China
| | - Li-Li Song
- Shanxi Key Laboratory of Integrated Pest Management in Agriculture, College of Plant Protection, Shanxi Agricultural University, Taigu 030801, Shanxi Province, P. R. China
| | - Hui Cao
- Shanxi Key Laboratory of Integrated Pest Management in Agriculture, College of Plant Protection, Shanxi Agricultural University, Taigu 030801, Shanxi Province, P. R. China
| | - Xiao-Juan Hao
- Shanxi Key Laboratory of Integrated Pest Management in Agriculture, College of Plant Protection, Shanxi Agricultural University, Taigu 030801, Shanxi Province, P. R. China
| | - Xiao-Yan Zhi
- Shanxi Key Laboratory of Integrated Pest Management in Agriculture, College of Plant Protection, Shanxi Agricultural University, Taigu 030801, Shanxi Province, P. R. China
- Shanxi Key Laboratory for Modernization of TCVM, College of Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, Shanxi Province, P. R. China
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(–)-Xanthatin as a Killer of Human Breast Cancer MCF-7 Mammosphere Cells: A Comparative Study with Salinomycin. Curr Issues Mol Biol 2022; 44:3849-3858. [PMID: 36135176 PMCID: PMC9497939 DOI: 10.3390/cimb44090264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 08/20/2022] [Accepted: 08/22/2022] [Indexed: 11/17/2022] Open
Abstract
Experimental evidence accumulated by our research group and others strongly suggests that (–)-xanthatin, a xanthanolide sesquiterpene lactone, exhibits anti-proliferative effects on human breast cancer cells (in vitro) as well as anti-tumor effects in experimental animals (in vivo). In cancer biology, it is now critically important for anti-cancer agents to selectively target cancer stem cells (CSCs) in order to overcome cancer therapeutic resistance and recurrence. However, it has not yet been established whether (–)-xanthatin abrogates the formation of breast CSCs. In the present study, we utilized chemically synthesized pure (–)-xanthatin and a culture system to obtain mammospheres from human breast cancer MCF-7 cells, which are a CSC-enriched population. We herein demonstrated for the first time that (–)-xanthatin exhibited the ability to kill mammospheres, similar to salinomycin, an established selective killer of CSCs. A possible anti-proliferative mechanism toward mammospheres by (–)-xanthatin is discussed.
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Xanthatin Alleviates LPS-Induced Inflammatory Response in RAW264.7 Macrophages by Inhibiting NF-κB, MAPK and STATs Activation. Molecules 2022; 27:molecules27144603. [PMID: 35889477 PMCID: PMC9322085 DOI: 10.3390/molecules27144603] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 07/06/2022] [Accepted: 07/11/2022] [Indexed: 12/13/2022] Open
Abstract
Xanthatin (XT) is a sesquiterpene lactone isolated from the Chinese herb Xanthium, which belongs to the Asteraceae family. In this study, we developed an inflammation model via stimulating macrophage cell line (RAW 264.7 cells) with lipopolysaccharide (LPS), which was applied to assess the anti-inflammatory effect and probable mechanisms of xanthatin. When compared with the only LPS-induced group, cells that were pretreated with xanthatin were found to decrease the amount of nitric oxide (NO), reactive oxygen species (ROS) and associated pro-inflammatory factors (TNF-α, IL-1β and IL-6), and downregulate the mRNA expression of iNOS, COX-2, TNF-α, IL-1β, and IL-6. Interestingly, phosphorylated levels of related proteins (STAT3, ERK1/2, SAPK/JNK, IκBα, p65) were notably increased only with the LPS-activated cells, while the expression of these could be reverted by pre-treatment with xanthatin in a dose-dependent way. Meanwhile, xanthatin was also found to block NF-κB p65 from translocating into the nucleus and activating inflammatory gene transcription. Collectively, these results demonstrated that xanthatin suppresses the inflammatory effects through downregulating the nuclear factor kappa-B (NF-κB), mitogen-activated protein kinase (MAPK) and signal transducer and activator of transcription (STATs) signaling pathways. Taken together, xanthatin possesses the potential to act as a good anti-inflammatory medication candidate.
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How Should the Worldwide Knowledge of Traditional Cancer Healing Be Integrated with Herbs and Mushrooms into Modern Molecular Pharmacology? Pharmaceuticals (Basel) 2022; 15:ph15070868. [PMID: 35890166 PMCID: PMC9320176 DOI: 10.3390/ph15070868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 07/04/2022] [Accepted: 07/11/2022] [Indexed: 12/04/2022] Open
Abstract
Traditional herbal medicine (THM) is a “core” from which modern medicine has evolved over time. Besides this, one third of people worldwide have no access to modern medicine and rely only on traditional medicine. To date, drugs of plant origin, or their derivates (paclitaxel, vinblastine, vincristine, vinorelbine, etoposide, camptothecin, topotecan, irinotecan, and omacetaxine), are very important in the therapy of malignancies and they are included in most chemotherapeutic regimes. To date, 391,000 plant and 14,000 mushroom species exist. Their medical and biochemical capabilities have not been studied in detail. In this review, we systematized the information about plants and mushrooms, as well as their active compounds with antitumor properties. Plants and mushrooms are divided based on the regions where they are used in ethnomedicine to treat malignancies. The majority of their active compounds with antineoplastic properties and mechanisms of action are described. Furthermore, on the basis of the available information, we divided them into two priority groups for research and for their potential of use in antitumor therapy. As there are many prerequisites and some examples how THM helps and strengthens modern medicine, finally, we discuss the positive points of THM and the management required to transform and integrate THM into the modern medicine practice.
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Jia Q, Tao L, Zhou Y, Song L, Wei Z, Lu T, Woodgett JR, Lu Y. Novel GSK-3 kinase inhibitor Pym-5 induces GSK-3β rather than GSK-3α-dependent melanogenesis in murine melanoma cells. J Dermatol Sci 2022; 106:170-180. [PMID: 35641396 DOI: 10.1016/j.jdermsci.2022.05.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 04/27/2022] [Accepted: 05/09/2022] [Indexed: 11/20/2022]
Abstract
BACKGROUND Glycogen synthase kinase-3 (GSK-3) inhibitors are considered to activate Wnt/β-Catenin, which remains a controversial topic in melanoma treatment. OBJECTIVE Here, we have developed Pym-5, an attractive GSK-3 inhibitor. Using Pym-5 as a chemical tool to probe the GSK-3 biology, we aimed to investigate the potential of GSK-3 inhibition as a strategy of melanoma treatment and underlying mechanisms. METHODS Using pigment B16 and B16BL6 murine melanoma model in vitro and a zebrafish pigmentation model in vivo, we investigated Pym-5-meditaed activation of Wnt/β-Catenin, melanogenesis and antitumor response in melanoma treatment. RESULTS We found that Pym-5 delayed the growth and promoted melanogenesis of melanoma cells. Pym-5 activated the transcription of β-Catenin and responsive targets genes (AXIN2 and MITF), melanin biosynthesis genes (TYR, TYRP1 and TYRP2) and eventually elevated the production of melanin. Interestingly, genetic inactivation of GSK-3β, but not its paralogue GSK-3α, compromised Pym-5-mediated melanogenesis in B16 and B16BL6 cells. CONCLUSION These data provide insight into the potential therapeutic benefits obtained from activation of Wnt/β-Catenin signaling pathway and how Pym-5 can regulate melanin production and the rationale for future clinical application of GSK-3 inhibitor in melanoma patients.
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Affiliation(s)
- Qi Jia
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Li Tao
- College of Medicine, Yangzhou University, Yangzhou, Jiangsu, China
| | - Yinyin Zhou
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Li Song
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Zhonghong Wei
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Tao Lu
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, China.
| | - James R Woodgett
- Lunenfeld-Tanenbaum Research Institute, Sinai Health System, Toronto, Canada.
| | - Yin Lu
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China.
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Role of Plant-Derived Active Constituents in Cancer Treatment and Their Mechanisms of Action. Cells 2022; 11:cells11081326. [PMID: 35456005 PMCID: PMC9031068 DOI: 10.3390/cells11081326] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 03/31/2022] [Accepted: 04/11/2022] [Indexed: 02/07/2023] Open
Abstract
Despite significant technological advancements in conventional therapies, cancer remains one of the main causes of death worldwide. Although substantial progress has been made in the control and treatment of cancer, several limitations still exist, and there is scope for further advancements. Several adverse effects are associated with modern chemotherapy that hinder cancer treatment and lead to other critical disorders. Since ancient times, plant-based medicines have been employed in clinical practice and have yielded good results with few side effects. The modern research system and advanced screening techniques for plants’ bioactive constituents have enabled phytochemical discovery for the prevention and treatment of challenging diseases such as cancer. Phytochemicals such as vincristine, vinblastine, paclitaxel, curcumin, colchicine, and lycopene have shown promising anticancer effects. Discovery of more plant-derived bioactive compounds should be encouraged via the exploitation of advanced and innovative research techniques, to prevent and treat advanced-stage cancers without causing significant adverse effects. This review highlights numerous plant-derived bioactive molecules that have shown potential as anticancer agents and their probable mechanisms of action and provides an overview of in vitro, in vivo and clinical trial studies on anticancer phytochemicals.
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Zhi XY, Song LL, Liang J, Wei SQ, Li Y, Zhang Y, Hao XJ, Cao H, Yang C. Synthesis and in vitro antifungal activity of new Michael-type amino derivatives of xanthatin, a natural sesquiterpene lactone from Xanthium strumarium L. Bioorg Med Chem Lett 2022; 55:128481. [PMID: 34852242 DOI: 10.1016/j.bmcl.2021.128481] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 11/20/2021] [Accepted: 11/21/2021] [Indexed: 11/18/2022]
Abstract
Structural optimization using plant secondary metabolites as templates is one of the important approach to discover pesticide molecules with novel skeletons. Xanthatin, a natural sesquiterpene lactone isolated from the Xanthium plants (Family: Compositae), exhibits important biological properties. In this work, a series of Michael-type amino derivatives were prepared from xanthatin and their structures were characterized by 1H NMR, 13C NMR and HR-MS, and their antifungal activities against several phytopathogenic fungi were evaluated according to the spore germination method and mycelium growth rate method in vitro. The results illustrated that compounds 2g (IC50 = 78.91 µg/mL) and 2o (IC50 = 64.51 µg/mL) exhibited more promising inhibition activity against spores of F. solani than precursor xanthatin, compounds 2g, 2l, and 2r exhibited remarkable antifungal effect on C. mandshurica with the average inhibition rates (AIRs) >90%, whereas the AIR of xanthatin was only 59.34%. Meanwhile, the preliminary structure-activity relationships suggested that the amino containing 2-methoxyethyl or 4-chlorophenylmethyl group appended in the C-13 position of xanthatin could yield potential compounds against fungal spores, and the exocyclic double bond of xanthatin is essential to maintain its mycelial growth inhibitory activity. Therefore, the aforementioned findings indicate that partial xanthatin amino-derivatives could be considered for further exploration as the potential lead structures toward development of the new environmentally friendly fungicidal candidates for sustainable crop protection.
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Affiliation(s)
- Xiao-Yan Zhi
- College of Plant Protection, Shanxi Agricultural University, Taigu 030801, Shanxi Province, PR China
| | - Li-Li Song
- College of Plant Protection, Shanxi Agricultural University, Taigu 030801, Shanxi Province, PR China
| | - Jing Liang
- College of Plant Protection, Shanxi Agricultural University, Taigu 030801, Shanxi Province, PR China
| | - Si-Qi Wei
- College of Plant Protection, Shanxi Agricultural University, Taigu 030801, Shanxi Province, PR China
| | - Yang Li
- College of Plant Protection, Shanxi Agricultural University, Taigu 030801, Shanxi Province, PR China
| | - Yuan Zhang
- College of Plant Protection, Shanxi Agricultural University, Taigu 030801, Shanxi Province, PR China
| | - Xiao-Juan Hao
- College of Plant Protection, Shanxi Agricultural University, Taigu 030801, Shanxi Province, PR China
| | - Hui Cao
- College of Plant Protection, Shanxi Agricultural University, Taigu 030801, Shanxi Province, PR China
| | - Chun Yang
- College of Plant Protection, Shanxi Agricultural University, Taigu 030801, Shanxi Province, PR China.
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Yang J, Li Y, Zong C, Zhang Q, Ge S, Ma L, Fan J, Zhang J, Jia R. Xanthatin Selectively Targets Retinoblastoma by Inhibiting the PLK1-Mediated Cell Cycle. Invest Ophthalmol Vis Sci 2021; 62:11. [PMID: 34901994 PMCID: PMC8684308 DOI: 10.1167/iovs.62.15.11] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Accepted: 11/12/2021] [Indexed: 11/25/2022] Open
Abstract
Purpose Retinoblastoma is the most common primary intraocular malignant tumor in children. Although intra-arterial chemotherapy and conventional chemotherapy have become promising therapeutic approaches for advanced intraocular retinoblastoma, the side effects threaten health and are unavoidable, making the development of targeted therapy an urgent need. Therefore, we intended to find a potential drug for human retinoblastoma by screening an in-house compound library that included 89 purified and well-characterized natural products. Methods We screened a panel of 89 natural products in retinoblastoma cell lines to find the inhibitor. The inhibition of the identified inhibitor xanthatin on cell growth was detected through half-maximal inhibitory concentration (IC50), flow cytometry assay, and zebrafish model system. RNA-seq further selected the target gene PLK1. Results We reported the discovery of xanthatin as an effective inhibitor of retinoblastoma. Mechanistically, xanthatin selectively inhibited the proliferation of retinoblastoma cells by inducing cell cycle arrest and promoting apoptosis. Interestingly, xanthatin targeted PLK1-mediated cell cycle progression. The efficacy of xanthatin was further confirmed in zebrafish models. Conclusions Collectively, our data suggested that xanthatin significantly inhibited tumor growth in vitro and in vivo, and xanthatin could be a potential drug treatment for retinoblastoma.
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Affiliation(s)
- Jie Yang
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, China
| | - Yongyun Li
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, China
| | - Chunyan Zong
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, China
| | - Qianqian Zhang
- National Research Center for Translational Medicine, State Key Laboratory of Medical Genomics, Rui-Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Shengfang Ge
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, China
| | - Lei Ma
- Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai, China
| | - Jiayan Fan
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, China
| | - Jianming Zhang
- National Research Center for Translational Medicine, State Key Laboratory of Medical Genomics, Rui-Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Renbing Jia
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, China
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Geng Y, Li L, Liu P, Chen Z, Shen A, Zhang L. TMT-Based Quantitative Proteomic Analysis Identified Proteins and Signaling Pathways Involved in the Response to Xanthatin Treatment in Human HT-29 Colon Cancer Cells. Anticancer Agents Med Chem 2021; 22:887-896. [PMID: 34488591 DOI: 10.2174/1871520621666210901101510] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 06/12/2021] [Accepted: 06/27/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Xanthatin is a plant-derived bioactive sesquiterpene lactone from the Xanthium strumarium L., and it has been used as a traditional Chinese medicine. Recently, many studies have reported that xanthatin has anticancer activity. However, a comprehensive understanding of the mechanism underlying the antitumor effects of xanthatin is still lacking. OBJECTIVE To systematically and comprehensively identify the underlying mechanisms of xanthatin on cancer cells, quantitative proteomic techniques were performed. METHODS Xanthatin induced HT-29 colon cancer cells death was detected by lactate dehydrogenase (LDH) release cell death assay. Differentially abundant proteins in two groups (control groups and xanthatin treatment groups) of human HT-29 colon cancer cells were identified using tandem mass tag (TMT) quantitative proteomic techniques. All the significant differentially abundant proteins were generally characterized by performing hierarchical clustering, Gene Ontology (GO) enrichment analyses and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analyses. We chose Western blot analysis to validate the candidate proteins in the proteomics results. RESULTS A total of 5637 proteins were identified, of which 397 significantly differentially abundant proteins in the groups were quantified. Based on the Gene Ontology and Kyoto Encyclopedia of Genes and Genomes pathway analyses, we found that p53-related signaling played an important role in xanthatin-treated HT-29 colon cancer cells. p53-upregulated modulator of apoptosis (Puma), Sestrin-2 and p14ARF, which were selected from among p53-related signaling proteins, were further validated, and the results were consistent with the tandem mass tag quantitative proteomic results. CONCLUSION We first investigated the molecular mechanism underlying the effects of xanthatin treatment on HT-29 colon cancer cells using tandem mass tag quantitative proteomic methods and provided a global comprehensive understanding of the antitumor effects of xanthatin. However, it is necessary to further confirm the function of the differentially abundant proteins and the potentially associated signaling pathways.
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Affiliation(s)
- Yadi Geng
- Department of Pharmacy, Anhui Provincial Hospital, Anhui Medical University, Hefei, Anhui, 230001. China
| | - Lingli Li
- Department of Pharmacy, Anhui Provincial Hospital, Anhui Medical University, Hefei, Anhui, 230001. China
| | - Ping Liu
- Institute of Clinical Pharmacology, Anhui Medical University, Hefei, Anhui, 230032. China
| | - Zhaolin Chen
- Department of Pharmacy, Anhui Provincial Hospital, Anhui Medical University, Hefei, Anhui, 230001. China
| | - Aizong Shen
- Department of Pharmacy, Anhui Provincial Hospital, Anhui Medical University, Hefei, Anhui, 230001. China
| | - Lei Zhang
- Department of Pharmacy, Anhui Provincial Hospital, Anhui Medical University, Hefei, Anhui, 230001. China
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Li L, Liu P, Xie Y, Liu Y, Chen Z, Geng Y, Zhang L. Xanthatin inhibits human colon cancer cells progression via mTOR signaling mediated energy metabolism alteration. Drug Dev Res 2021; 83:119-130. [PMID: 34180556 DOI: 10.1002/ddr.21850] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 06/08/2021] [Accepted: 06/17/2021] [Indexed: 11/05/2022]
Abstract
Tumor cells exhibit higher glycolysis and rely on abnormal energy metabolism to produce ATP, which is essential for cell proliferation and migration. Abnormal energy metabolism inhibition is considered a promising tumor treatment strategy. Xanthatin is an active sesquiterpene lactone isolated from Xanthium strumarium L. This study evaluated the effect of xanthatin on the energy metabolism of human colon cancer cells. The results showed that xanthatin significantly inhibited the migration and invasion of human HT-29 and HCT-116 colon cancer cells. We found that xanthatin effectively reduced the production of ATP and promoted the accumulation of lactate. Xanthatin inhibited glycolysis which may be related to the reduction of glucose transporter 1 (Glut1) and monocarboxylate transporter 4 (MCT4) mRNA and protein levels. Concomitantly, xanthatin promoted complex II activity and oxidative phosphorylation (OXPHOS), resulting in mitochondrial damage and cell death in HT-29 cells. Furthermore, xanthatin inhibited the phosphorylation of mTOR, the phosphorylation of 4E-binding protein 1 (4E-BP1) and c-myc in HT-29 cells. Moreover, rapamycin, a mTOR inhibitor, could enhance the cytotoxicity effect in xanthatin treated HT-29 cells. Additionally, HT-29 cells transfected with si-mTOR aggravated xanthatin induced cell viability inhibition. Based on these results, we observed that the effect of xanthatin on energy metabolism may be related to its inhibition of the mTOR signaling pathway. Collectively, this study provides important insights into xanthatin's anticancer effect, which occurs by regulation of the energy metabolism of human colon cancer cells, and suggest that xanthatin has potential as a botanical drug against abnormal tumor energy metabolism.
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Affiliation(s)
- Lingli Li
- Department of Pharmacy, Anhui Provincial Hospital, Anhui Medical University, Hefei, Anhui, 230001, China
| | - Ping Liu
- Institute of Clinical Pharmacology, Anhui Medical University, Hefei, Anhui, China
| | - Yanbo Xie
- Department of Pharmacy, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Yunxiao Liu
- Institute of Clinical Pharmacology, Anhui Medical University, Hefei, Anhui, China
| | - Zhaolin Chen
- Department of Pharmacy, Anhui Provincial Hospital, Anhui Medical University, Hefei, Anhui, 230001, China.,Department of Pharmacy, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Yadi Geng
- Department of Pharmacy, Anhui Provincial Hospital, Anhui Medical University, Hefei, Anhui, 230001, China.,Department of Pharmacy, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Lei Zhang
- Department of Pharmacy, Anhui Provincial Hospital, Anhui Medical University, Hefei, Anhui, 230001, China.,Department of Pharmacy, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China.,Institute of Clinical Pharmacology, Anhui Medical University, Hefei, Anhui, China
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12
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Sharma A, Noda M, Sugiyama M, Kumar B, Kaur B. Application of Pediococcus acidilactici BD16 ( alaD +) expressing L-alanine dehydrogenase enzyme as a starter culture candidate for secondary wine fermentation. BIOTECHNOL BIOTEC EQ 2021. [DOI: 10.1080/13102818.2021.1995496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Affiliation(s)
- Anshula Sharma
- Systems Biology Laboratory, Department of Biotechnology, Punjabi University, Patiala, Punjab, India
| | - Masafumi Noda
- Department of Molecular Microbiology and Biotechnology, Graduate School of Biomedical & Health Sciences, Hiroshima University, Minami-ku, Hiroshima, Japan
| | - Masanori Sugiyama
- Department of Molecular Microbiology and Biotechnology, Graduate School of Biomedical & Health Sciences, Hiroshima University, Minami-ku, Hiroshima, Japan
| | - Balvir Kumar
- Department of Biotechnology, University Institute of Biotechnology, Chandigarh University, Mohali, Punjab, India
| | - Baljinder Kaur
- Systems Biology Laboratory, Department of Biotechnology, Punjabi University, Patiala, Punjab, India
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13
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Lee YJ, Choi J, Yoon YJ, Sim Y, Ryu HW, Oh SR, Kim DY, Hwang J, Chi SW, Han DC, Kwon BM. 8-Epi-xanthatin induces the apoptosis of DU145 prostate carcinoma cells through signal transducer and activator of transcription 3 inhibition and reactive oxygen species generation. Phytother Res 2020; 35:1508-1520. [PMID: 33164240 DOI: 10.1002/ptr.6918] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 09/11/2020] [Accepted: 10/01/2020] [Indexed: 12/15/2022]
Abstract
Signal transducer and activator of transcription 3 (STAT3) is aberrantly activated in many human cancers. We tried to find STAT3 inhibitors from natural sources and found that Xanthium fruit extracts decreased phosphorylation of STAT3-Y705. 8-Epi-xanthatin (EXT) was isolated from the extracts. When DU145 cancer cells were treated with EXT, p-STAT3-Y705 was decreased with an IC50 of 3.2 μM. EXT decreased the expression of STAT3 target genes, such as cyclin A, cyclin D1, and BCL-2, and induced PARP cleavage, indicating apoptotic cell death. Downregulation of EXT-induced p-STAT3-Y705 was rescued by pretreating DU145 cells with antioxidants, such as N-acetyl-L-cysteine (NAC), indicating that reactive oxygen species (ROS) were involved in the EXT-induced inhibition of STAT3 activation. Furthermore, we proved the association of EXT with STAT3 protein by using a drug affinity responsive target stability (DARTS) assay and a cellular thermal shift assay (CETSA). EXT inhibited proliferation of DU145 cells with a GI50 of 6 μM and reduced tumor growth in mice xenografted with DU145 cells. Immunoblotting showed that phosphorylation of STAT3-Y705 was lower in EXT-treated tumor tissue than in control tissues. Collectively, we found that EXT binds to, and inhibits, STAT3 activation and could be a lead compound for anticancer therapy.
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Affiliation(s)
- Yu-Jin Lee
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, Daejeon, South Korea
| | - Jiyeon Choi
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, Daejeon, South Korea
| | - Yae Jin Yoon
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, Daejeon, South Korea
| | - Yugyeong Sim
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, Daejeon, South Korea.,University of Science and Technology in Korea, Daejeon
| | - Hyung Won Ryu
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, South Korea
| | - Sei-Ryang Oh
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, South Korea
| | - Doo-Young Kim
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, South Korea
| | - Jihyun Hwang
- Disease Target Structure Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, South Korea
| | - Seung-Wook Chi
- University of Science and Technology in Korea, Daejeon.,Disease Target Structure Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, South Korea
| | - Dong Cho Han
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, Daejeon, South Korea.,University of Science and Technology in Korea, Daejeon
| | - Byoung-Mog Kwon
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, Daejeon, South Korea.,University of Science and Technology in Korea, Daejeon
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Chang J, Gao J, Lou L, Chu H, Li P, Chen T, Gao F. Xanthatin alleviates airway inflammation in asthmatic mice by regulating the STAT3/NF-κB signaling pathway. Respir Physiol Neurobiol 2020; 281:103491. [PMID: 32653534 DOI: 10.1016/j.resp.2020.103491] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 06/22/2020] [Accepted: 07/07/2020] [Indexed: 12/31/2022]
Abstract
Here, we aimed to investigate the role of Xanthatin in asthma and its underlying mechanism. BALB/c mice were treated with ovalbumin (OVA) to establis a mouse model of asthma. Our results showed that OVA injection significantly increased inflammatory cell infiltration and goblet cell hyperplasia in lung issues, while Xanthatin treatment and STAT3 inhibitor C188-9 administration relieved these symptoms. Moreover, OVA-induced OVA-specific immunoglobulin E level in serum and the number of total cell, macrophages, lymphocytes, neutrophils, and eosinophils in bronchoalveolar lavage fluid (BALF) were markedly reduced by Xanthatin treatment and signal transducer and activator of transcription 3 (STAT3) inhibition. Additionally, Xanthatin treatment and STAT3 inhibition was also significantly decreased the levels of inflammatory cytokines in BALF in asthmatic mice. We further demonstrated that the STAT3/nuclear factor-kappaB (NF-κB) pathway was blocked by Xanthatin in asthmatic mice. Overall, we conclude that Xanthatin attenuates airway inflammation in asthmatic mice through blocking the STAT3/NFκB signaling pathway, indicating the potential of Xanthatin as a useful therapeutic agent for asthma.
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Affiliation(s)
- Jingxia Chang
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, People's Republic of China.
| | - Jianan Gao
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, People's Republic of China
| | - Lili Lou
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, People's Republic of China
| | - Heying Chu
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, People's Republic of China
| | - Ping Li
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, People's Republic of China
| | - Tengfei Chen
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, People's Republic of China
| | - Feng Gao
- Department of Physiology, College of Medicine, Pennsylvania State University, Hershey, PA, USA
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15
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Xia Z, Xu TQ, Zhang HX, Chen YM, Xu W, Zhou GX. Bioactive sulfur-containing compounds from Xanthium sibiricum, including a revision of the structure of xanthiazinone. PHYTOCHEMISTRY 2020; 173:112293. [PMID: 32062197 DOI: 10.1016/j.phytochem.2020.112293] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2019] [Revised: 02/01/2020] [Accepted: 02/02/2020] [Indexed: 06/10/2023]
Abstract
Seven previously undescribed sulfur-containing compounds, (+)- and (-)-xanthiazinone A, (+)- and (-)-xanthiazinone B, (+)- and (-)-xanthiazinone C and xanthiazinone D, and four known thiazinedione derivatives, together with three thiophene derivatives were isolated from the fruits of Xanthium sibiricum. Racemic xanthiazinones A-C were separated by chiral HPLC columns. Their chemical structures were elucidated based on extensive spectroscopic analyses, ECD calculations, and single crystal X-ray diffractions. The X-ray crystallographic analyses for xanthiazinones A-C represent the first example described for the structure elucidation of the thiazinedione with the five-membered lactone ring attached via an oxygen atom. Accordingly, the previously proposed structure for xanthiazinone was revised. The anti-inflammatory and cytotoxic activities were evaluated for all the isolated compounds. (+)-xanthiazinone B and 2-hydroxy-xanthiazone exhibited potent inhibitory effects against nitric oxide production in lipopolysaccharide-activated RAW 264.7 mouse macrophage cells with IC50 values of 8.75 and 10.90 μM, respectively. All compounds obviously were inactive for three human tumor cell lines (HepG2, MCF-7, and A549) with IC50 values more than 10 μM.
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Affiliation(s)
- Zhao Xia
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University, Guangzhou, China
| | - Tian-Qi Xu
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University, Guangzhou, China
| | - Hai-Xin Zhang
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University, Guangzhou, China
| | - Yi-Min Chen
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University, Guangzhou, China
| | - Wei Xu
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University, Guangzhou, China
| | - Guang-Xiong Zhou
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University, Guangzhou, China.
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16
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Natural product-based semisynthesis and biological evaluation of thiol/amino-Michael adducts of xanthatin derived from Xanthium strumarium as potential pesticidal agents. Bioorg Chem 2020; 97:103696. [PMID: 32135360 DOI: 10.1016/j.bioorg.2020.103696] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 02/12/2020] [Accepted: 02/23/2020] [Indexed: 01/10/2023]
Abstract
Xanthatin, a natural sesquiterpene lactone, occurs as one of the major constituents of Xanthium plants (Compositae) and exhibits many important biological properties. To discover natural products-based pesticides, forty-nine Michael-type thiol/amino adducts of xanthatin were synthesized and characterized, while their pesticidal activities were investigated. Among them, compounds 2c, 2h, 2i, and 2t exhibited more potent antifungal activity against Botrytis cinerea (IC50 = 0.96, 0.38, 6.33, and 7.21 µg/mL, respectively) than xanthatin and the two commercial fungicides. Compounds 2t and 2u displayed broad-spectrum and excellent antifungal effects against all tested phytopathogenic fungi, while their IC50 values ranged from 7.21 to 75.88 µg/mL. Compounds 2a, 2f, 2l, 2m, 2v, 7c, 7e, 7h, 7i, and 7j showed moderate larvicidal activity against Plutella xylostella Linnaeus. Furthermore, compounds 2b, 7g, and 7h demonstrated significant ovicidal activity against P. xylostella with the LC50 values of 14.04, 10.00, and 11.95 mg/L, respectively. These findings suggest that thiol/amino appended in the C-13 position of xanthatin may improve antifungal and ovicidal activities for the derivatives. It was also noticed that the exocyclic double bond of xanthatin is crucial for its larvicidal activity. This work also provides some important hints for further design, synthesis, and structural modification of the xanthanolides sesquiterpene lactones toward development of the new environmentally friendly pesticides for sustainable agricultural production.
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Ma YY, Di ZM, Cao Q, Xu WS, Bi SX, Yu JS, Shen YJ, Yu YQ, Shen YX, Feng LJ. Xanthatin induces glioma cell apoptosis and inhibits tumor growth via activating endoplasmic reticulum stress-dependent CHOP pathway. Acta Pharmacol Sin 2020; 41:404-414. [PMID: 31700088 PMCID: PMC7468336 DOI: 10.1038/s41401-019-0318-5] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Accepted: 10/09/2019] [Indexed: 01/08/2023] Open
Abstract
Xanthatin is a natural sesquiterpene lactone purified from Xanthium strumarium L., which has shown prominent antitumor activity against a variety of cancer cells. In the current study, we investigated the effect of xanthatin on the growth of glioma cells in vitro and in vivo, and elucidated the underlying mechanisms. In both rat glioma C6 and human glioma U251 cell lines, xanthatin (1–15 μM) dose-dependently inhibited cell viability without apparent effect on the cell cycle. Furthermore, xanthatin treatment dose-dependently induced glioma cell apoptosis. In nude mice bearing C6 glioma tumor xenografts, administration of xanthatin (10, 20, 40 mg·kg−1·d−1, ip, for 2 weeks) dose-dependently inhibited the tumor growth, but did not affect the body weight. More importantly, xanthatin treatment markedly increased the expression levels of the endoplasmic reticulum (ER) stress-related markers in both the glioma cell lines as well as in C6 xenografts, including glucose-regulated protein 78, C/EBP-homologous protein (CHOP), activating factor 4, activating transcription factor 6, spliced X-box binding protein-1, phosphorylated protein kinase R-like endoplasmic reticulum kinase, and phosphorylated eukaryotic initiation factor 2a. Pretreatment of C6 glioma cells with the ER stress inhibitor 4-phenylbutyric acid (4-PBA, 7 mM) or knockdown of CHOP using small interfering RNA significantly attenuated xanthatin-induced cell apoptosis and increase of proapoptotic caspase-3. These results demonstrate that xanthatin induces glioma cell apoptosis and inhibits tumor growth via activating the ER stress-related unfolded protein response pathway involving CHOP induction. Xanthatin may serve as a promising agent in the treatment of human glioma.
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18
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Piloto-Ferrer J, Sánchez-Lamar Á, Francisco M, González ML, Merino N, Aparicio G, Pérez C, Rodeiro I, Lopes MTP. Xanthium strumarium´s xanthatins induces mitotic arrest and apoptosis in CT26WT colon carcinoma cells. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2019; 57:236-244. [PMID: 30797985 DOI: 10.1016/j.phymed.2018.12.019] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Revised: 12/13/2018] [Accepted: 12/15/2018] [Indexed: 06/09/2023]
Abstract
BACKGROUND Colorectal cancer is one of the most common malignancies worldwide and is associated with high mortality rates. We previously reported that Xanthium strumarium L. induces mitotic arrest in proliferating cells, a process mediated by xanthatins. HYPOTHESIS/AIM The aim of this work is to study if xanthatins, isolated from X. strumarium total extract, affect the proliferative capacity of CT26WT colon cancer cells and, in consequence, if tumor growth and proliferation of (lung) metastatic sites can also be arrested in vivo. STUDY DESIGN This study consisted of both in vitro and in vivo experiments involving the CT26WT cell line and a subcutaneous mouse model of colon cancer. In vitro cell cycle progression, in vivo tumoral growth and anti-metastatic activity were analyzed to investigate whether xanthatins of X. strumarium induce mitotic arrest in proliferating colorectal carcinoma. RESULTS Our in vitro results show that X. strumarium, mediated by xanthatins, induces G2/M arrest and impair anaphase entrance. This leads to a significant induction of apoptotic and necrotic in CT26WT cells, demonstrating their significant anti-proliferative activity through interfering with the mitotic apparatus. Furthermore, our in vivoresults reveal that X. strumarium inhibits both tumor growth and metastasis progression. CONCLUSION X. strumarium antitumor activities are mainly mediated by xanthatins through inhibition of tumor growth and metastasis, inducing mitotic arrest and apoptosis in colon carcinoma cells. These findings further confirm the therapeutic potential of X. strumarium in colorectal cancer.
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Affiliation(s)
- Janet Piloto-Ferrer
- Departamento de Toxicología Genética y antitumorales, Centro de Investigación y Desarrollo de Medicamentos (CIDEM), Avenida 26, No. 1605 e/ Puentes Grandes y Boyeros, La Habana, Cuba.
| | - Ángel Sánchez-Lamar
- Departamento de Biología Vegetal, Laboratorio de Toxicología Genética, Facultad de Biología, Universidad de la Habana, Calle 25, No. 455, e/ I y J, Vedado, La Habana, Cuba
| | - Marbelis Francisco
- Departamento de Toxicología Genética y antitumorales, Centro de Investigación y Desarrollo de Medicamentos (CIDEM), Avenida 26, No. 1605 e/ Puentes Grandes y Boyeros, La Habana, Cuba
| | - Maria L González
- Departamento de Toxicología Genética y antitumorales, Centro de Investigación y Desarrollo de Medicamentos (CIDEM), Avenida 26, No. 1605 e/ Puentes Grandes y Boyeros, La Habana, Cuba
| | - Nelsón Merino
- Departamento de Toxicología y Farmacología, Centro de Investigación y Desarrollo de Medicamentos (CIDEM), Avenida 26, No. 1605 e/ Puentes Grandes y Boyeros, La Habana, Cuba
| | - Guillermo Aparicio
- Departamento de Toxicología y Farmacología, Centro de Investigación y Desarrollo de Medicamentos (CIDEM), Avenida 26, No. 1605 e/ Puentes Grandes y Boyeros, La Habana, Cuba
| | - Carlos Pérez
- Departamento de Bioquímica, Instituto de Ciencias Básicas y Preclínicas "Victoria de Girón" (ICBP), Universidad de Ciencias Médicas de La Habana (UCMH). Calle 146 # 3102, Playa, La Habana, Cuba
| | - Idania Rodeiro
- Departamento de Farmacología, Instituto de Ciencias del Mar (ICIMAR), Loma 14, Alturas del Vedado, Plaza de la Revolución, La Habana, Cuba
| | - Miriam Teresa Paz Lopes
- Departamento de Farmacología, Instituto de Ciencias Biológicas (ICB) Universidad Federal de Minas Gerais (UFMG), Avda. Antonio Carlos 6627, Belo Horizonte, Minas Gerais, Brasil
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Fan W, Fan L, Peng C, Zhang Q, Wang L, Li L, Wang J, Zhang D, Peng W, Wu C. Traditional Uses, Botany, Phytochemistry, Pharmacology, Pharmacokinetics and Toxicology of Xanthium strumarium L.: A Review. Molecules 2019; 24:molecules24020359. [PMID: 30669496 PMCID: PMC6359306 DOI: 10.3390/molecules24020359] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Revised: 01/10/2019] [Accepted: 01/16/2019] [Indexed: 02/07/2023] Open
Abstract
Xanthium strumarium L. (Asteraceae) is a common and well-known traditional Chinese herbal medicine usually named Cang-Er-Zi, and has been used for thousands of years in China. The purpose of this paper is to summarize the progress of modern research, and provide a systematic review on the traditional usages, botany, phytochemistry, pharmacology, pharmacokinetics, and toxicology of the X. strumarium. Moreover, an in-depth discussion of some valuable issues and possible development for future research on this plant is also given. X. strumarium, as a traditional herbal medicine, has been extensively applied to treat many diseases, such as rhinitis, nasal sinusitis, headache, gastric ulcer, urticaria, rheumatism bacterial, fungal infections and arthritis. Up to now, more than 170 chemical constituents have been isolated and identified from X. strumarium, including sesquiterpenoids, phenylpropenoids, lignanoids, coumarins, steroids, glycosides, flavonoids, thiazides, anthraquinones, naphthoquinones and other compounds. Modern research shows that the extracts and compounds from X. strumarium possess wide-ranging pharmacological effects, including anti- allergic rhinitis (AR) effects, anti-tumor effects, anti-inflammatory and analgesic effects, insecticide and antiparasitic effects, antioxidant effects, antibacterial and antifungal effects, antidiabetic effects, antilipidemic effects and antiviral effects. However, further research should focus on investigating bioactive compounds and demonstrate the mechanism of its detoxification, and more reasonable quality control standards for X. strumarium should also be established.
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Affiliation(s)
- Wenxiang Fan
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - Linhong Fan
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - Chengyi Peng
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - Qing Zhang
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - Li Wang
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - Lin Li
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - Jiaolong Wang
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - Dayong Zhang
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
- Sichuan Neautus Traditional Chinese Herb Limited Company, Chengdu 611731, China.
| | - Wei Peng
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - Chunjie Wu
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
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Shi TL, Zhang L, Cheng QY, Yu JS, Liu J, Shen YJ, Feng XJ, Shen YX. Xanthatin induces apoptosis by activating endoplasmic reticulum stress in hepatoma cells. Eur J Pharmacol 2019; 843:1-11. [DOI: 10.1016/j.ejphar.2018.10.041] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Revised: 10/28/2018] [Accepted: 10/29/2018] [Indexed: 11/28/2022]
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21
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Liu Y, Jing SX, Luo SH, Li SH. Non-volatile natural products in plant glandular trichomes: chemistry, biological activities and biosynthesis. Nat Prod Rep 2019; 36:626-665. [PMID: 30468448 DOI: 10.1039/c8np00077h] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The investigation methods, chemistry, bioactivities, and biosynthesis of non-volatile natural products involving 489 compounds in plant glandular trichomes are reviewed.
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Affiliation(s)
- Yan Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China
- Kunming Institute of Botany
- Chinese Academy of Sciences
- Kunming 650201
- P. R. China
| | - Shu-Xi Jing
- State Key Laboratory of Phytochemistry and Plant Resources in West China
- Kunming Institute of Botany
- Chinese Academy of Sciences
- Kunming 650201
- P. R. China
| | - Shi-Hong Luo
- College of Bioscience and Biotechnology
- Shenyang Agricultural University
- Shenyang
- P. R. China
| | - Sheng-Hong Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China
- Kunming Institute of Botany
- Chinese Academy of Sciences
- Kunming 650201
- P. R. China
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Bi SX, Li XH, Wei CS, Xiang HH, Shen YX, Yu YQ. The antitumour growth and antiangiogenesis effects of xanthatin in murine glioma dynamically evaluated by dynamic contrast-enhanced magnetic resonance imaging. Phytother Res 2018; 33:149-158. [PMID: 30346082 DOI: 10.1002/ptr.6207] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 09/11/2018] [Accepted: 09/11/2018] [Indexed: 12/26/2022]
Abstract
To investigate the suppressive effects of xanthatin on glioma growth in a nude mouse xenograft model and rat orthotopic implantation model using magnetic resonance imaging (MRI) to dynamically monitor the antitumour growth and antiangiogenesis effects of xanthatin. The nude mouse xenograft tumour model and rat orthotopic implantation model were established to observe the antitumour effects of xanthatin in vivo. In the rat orthotopic implanted tumour model, MRI scanning was used to dynamically monitor the antitumour growth effect and evaluate the antiangiogenesis effect of xanthatin. We found that xanthatin at a dose of 0.4 mg/10 g dramatically decreased the growth of xenograft tumours in nude mice. The antiangiogenesis effect of xanthatin C6 glioma was evaluated by dynamic contrast-enhanced (DCE) MRI via comparison of the volume transfer constant (Ktrans ) value, a parameter that reflects vessel permeability. We found that xanthatin at the doses of 8 and 16 mg/kg significantly decreased the Ktrans value, which suggests that xanthatin has antiangiogenesis effects. These data demonstrate the suppressive effects of xanthatin on C6 glioma occur via antiangiogenesis. Meanwhile, this study also provides evidence for the application of quantitative parameters of DCE-MRI for dynamically evaluating the growth and angiogenesis of intracranial tumours and for experimental and clinical research.
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Affiliation(s)
- Si-Xing Bi
- Department of Radiology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.,School of Basic Medical Sciences, Anhui Medical University, Hefei, China.,Biopharmaceutical Research Institute, Anhui Medical University, Hefei, China
| | - Xiao-Hu Li
- Department of Radiology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Chuan-Sheng Wei
- School of Basic Medical Sciences, Anhui Medical University, Hefei, China.,Biopharmaceutical Research Institute, Anhui Medical University, Hefei, China
| | - Hui-Hui Xiang
- Department of Radiology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.,School of Basic Medical Sciences, Anhui Medical University, Hefei, China.,Biopharmaceutical Research Institute, Anhui Medical University, Hefei, China
| | - Yu-Xian Shen
- School of Basic Medical Sciences, Anhui Medical University, Hefei, China.,Biopharmaceutical Research Institute, Anhui Medical University, Hefei, China
| | - Yong-Qiang Yu
- Department of Radiology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
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23
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Liu R, Shi D, Zhang J, Li X, Han X, Yao X, Fang J. Xanthatin Promotes Apoptosis via Inhibiting Thioredoxin Reductase and Eliciting Oxidative Stress. Mol Pharm 2018; 15:3285-3296. [PMID: 29939757 DOI: 10.1021/acs.molpharmaceut.8b00338] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Xanthatin (XT), a naturally occurring sesquiterpene lactone presented in cocklebur ( Xanthium strumarium L.), is under development as a potential anticancer agent. Despite the promising anticancer effect of XT, the molecular mechanism underlying its cellular action has not been well elucidated. The mammalian thioredoxin reductase (TrxR) enzymes, the essential seleno-flavoproteins containing a penultimate selenocysteine (Sec) residue at the C-terminus, represent a promising target for cancer chemotherapeutic agents. In this study, XT inhibits both the purified TrxR and the enzyme in cells. The possible binding mode of XT with the TrxR protein is predicted by the covalent docking method. Mechanism studies reveal that XT targets the Sec residue of TrxR and inhibits the enzyme activity irreversibly. Simultaneously, the inhibition of TrxR by XT promotes the oxidative stress-mediated apoptosis of HeLa cells. Importantly, the knockdown of the enzyme sensitizes the cells to XT treatment. Targeting TrxR thus discloses a novel molecular mechanism in accounting for the cellular action of XT and provides insights into the development of XT as an anticancer agent.
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Affiliation(s)
- Ruijuan Liu
- State Key Laboratory of Applied Organic Chemistry , Lanzhou University , Lanzhou 730000 , China.,School of Pharmacy , Lanzhou University , Lanzhou 730000 , China
| | - Danfeng Shi
- College of Chemistry and Chemical Engineering , Lanzhou University , Lanzhou 730000 , China
| | - Junmin Zhang
- School of Pharmacy , Lanzhou University , Lanzhou 730000 , China
| | - Xinming Li
- State Key Laboratory of Applied Organic Chemistry , Lanzhou University , Lanzhou 730000 , China.,College of Chemistry and Chemical Engineering , Lanzhou University , Lanzhou 730000 , China
| | - Xiao Han
- State Key Laboratory of Applied Organic Chemistry , Lanzhou University , Lanzhou 730000 , China.,College of Chemistry and Chemical Engineering , Lanzhou University , Lanzhou 730000 , China
| | - Xiaojun Yao
- College of Chemistry and Chemical Engineering , Lanzhou University , Lanzhou 730000 , China
| | - Jianguo Fang
- State Key Laboratory of Applied Organic Chemistry , Lanzhou University , Lanzhou 730000 , China.,College of Chemistry and Chemical Engineering , Lanzhou University , Lanzhou 730000 , China
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24
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A new xanthatin analogue 1β-hydroxyl-5α-chloro-8-epi-xanthatin induces apoptosis through ROS-mediated ERK/p38 MAPK activation and JAK2/STAT3 inhibition in human hepatocellular carcinoma. Biochimie 2018; 152:43-52. [PMID: 29960031 DOI: 10.1016/j.biochi.2018.06.018] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Accepted: 06/23/2018] [Indexed: 02/05/2023]
Abstract
1β-hydroxyl-5α-chloro-8-epi-xanthatin (XTT), a sesquiterpene lactone isolated from Xanthium sibiricum, possessed potent cytotoxicity on cancer cells in vitro. The objective of this study was to investigate the anti-tumor effect and underlying mechanisms of XTT on human hepatocellular carcinoma (HCC). Firstly, XTT inhibited the cell growth and induced apoptosis in human HCC cells, which was associated with the induction of Bax and cleaved-caspase-3, inhibition of Bcl-2 and survivin expression. Importantly, XTT induced the generation of reactive oxygen species (ROS) and malondialdehyde (MDA), and depletion of glutathione (GSH) in HCC cells through covalently modification of GSH. Furthermore, XTT caused obvious activation of extracellular regulated protein kinase (ERK) and p38 mitogen-activated protein kinase (p38 MAPK) and inactivation of Janus kinase 2/signal transducer and activator of transcription 3 (JAK2/STAT3) in HCC cells. ROS scavenger N-acetyl cysteine abrogated the effects of XTT on ERK/p38 MAPK activation and JAK2/STAT3 inhibition, and rescued HCC cells from XTT-induced apoptosis. Additionally, inhibitors of ERK/p38 MAPKs or activator of JAK2/STAT3 partially abolished XTT-mediated effect. In summary, XTT inhibited cell growth and induced apoptosis in HCC cells through ROS-mediated ERK/p38 MAPK activation and JAK2/STAT3 inhibition by GSH depletion. These findings also show the therapeutic potential of XTT in HCC.
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25
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Shen M, Zhou XZ, Ye L, Yuan Q, Shi C, Zhu PW, Jiang N, Ma MY, Yang QC, Shao Y. Xanthatin inhibits corneal neovascularization by inhibiting the VEGFR2‑mediated STAT3/PI3K/Akt signaling pathway. Int J Mol Med 2018; 42:769-778. [PMID: 29717775 PMCID: PMC6034915 DOI: 10.3892/ijmm.2018.3646] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Accepted: 04/26/2018] [Indexed: 12/11/2022] Open
Abstract
Alkali burn is one of the main causes of corneal injury. The inflammation and neovascularization caused by alkali burns aggravate corneal damage, resulting in loss of vision. The aim of the present study was to evaluate the efficacy of xanthatin in the treatment of alkali burn-induced inflammation and neovascularization. A CCK-8 assay was used to detect the effects of different concentrations of xanthatin on the proliferation of human umbilical vein endothelial cells (HUVECs). The effects of xanthatin on the migration of HUVECs and the ability of lumen formation were examined using a scratch test and lumen formation assay, respectively. A total of 60 Sprague-Dawley rats were randomly divided into two groups to establish a corneal alkali burn model, and were treated with PBS and xanthatin eye drops four times a day. A slit lamp microscope recorded changes of the cornea at 0, 4, 7, 10 and 14 days, and the inflammatory indices of the cornea and the neovascular area were evaluated. The expression levels of vascular endothelial growth factor (VEGF) and pigment epithelium-derived factor (PEDF) in the cornea under different treatment conditions were detected using immunofluorescence and western blot analysis. In order to investigate the mechanism of xanthatin on the inhibition of inflammation and neovascularization, HUVECs were treated with xanthatin and PBS following VEGF treatment. The subcellular localization of signal transducer and activator of transcription 3 (STAT3) was detected using immunofluorescence. The expression levels of VEGF receptor 2 (VEGFR2), STAT3, phosphoinositide 3-kinase (PI3K) and Akt were detected using western blot analysis. The results revealed that xanthatin inhibited the proliferation of HUVECs in a concentration-dependent manner. The migration ability and lumen-forming ability of the HUVECs were also inhibited by xanthatin. Slit lamp microscopy showed that the inflammatory index and the area of neovascularization in the xanthatin-treated group were significantly reduced, compared with those in the PBS treatment group. The xanthatin treatment group exhibited a lower protein expression level of VEGF and increased protein expression level of PEDF, compared with the PBS treatment group. In the VEGF-treated HUVECs, xanthatin significantly decreased the expression levels of p-VEGFR2, phosphorylated (p-)STAT3, p-PI3K and p-Akt. In conclusion, the present study confirmed that xanthatin inhibited corneal neovascularization and inflammation in the alkali burn model, elucidating the underlying mechanisms involved in its protective effects. Therefore, xanthatin may be a novel drug for the treatment of corneal alkali burn.
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Affiliation(s)
- Mei Shen
- Department of Ophthalmology, The First Affiliated Hospital of Nanchang University, Jiangxi Province Clinical Ophthalmology Institute, Nanchang, Jiangxi 330006, P.R. China
| | - Xue-Zhi Zhou
- Department of Ophthalmology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, P.R. China
| | - Lei Ye
- Department of Ophthalmology, The First Affiliated Hospital of Nanchang University, Jiangxi Province Clinical Ophthalmology Institute, Nanchang, Jiangxi 330006, P.R. China
| | - Qing Yuan
- Department of Ophthalmology, The First Affiliated Hospital of Nanchang University, Jiangxi Province Clinical Ophthalmology Institute, Nanchang, Jiangxi 330006, P.R. China
| | - Ce Shi
- School of Ophthalmology and Optometry, Wenzhou Medical University, Wenzhou, Zhejiang 325035, P.R. China
| | - Pei-Wen Zhu
- Department of Ophthalmology, The First Affiliated Hospital of Nanchang University, Jiangxi Province Clinical Ophthalmology Institute, Nanchang, Jiangxi 330006, P.R. China
| | - Nan Jiang
- Department of Ophthalmology, The First Affiliated Hospital of Nanchang University, Jiangxi Province Clinical Ophthalmology Institute, Nanchang, Jiangxi 330006, P.R. China
| | - Ming-Yang Ma
- Department of Ophthalmology, The First Affiliated Hospital of Nanchang University, Jiangxi Province Clinical Ophthalmology Institute, Nanchang, Jiangxi 330006, P.R. China
| | - Qi-Chen Yang
- Eye Institute of Xiamen University, Xiamen, Fujian 361102, P.R. China
| | - Yi Shao
- Department of Ophthalmology, The First Affiliated Hospital of Nanchang University, Jiangxi Province Clinical Ophthalmology Institute, Nanchang, Jiangxi 330006, P.R. China
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26
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Tao L, Cao Y, Wei Z, Jia Q, Yu S, Zhong J, Wang A, Woodgett JR, Lu Y. Xanthatin triggers Chk1-mediated DNA damage response and destabilizes Cdc25C via lysosomal degradation in lung cancer cells. Toxicol Appl Pharmacol 2017; 337:85-94. [PMID: 29074359 DOI: 10.1016/j.taap.2017.10.015] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Revised: 10/01/2017] [Accepted: 10/17/2017] [Indexed: 12/21/2022]
Abstract
Previous studies had shown that xanthatin, a natural xanthanolide sesquiterpene lactone, could induce mitotic arrest and apoptosis in non-small cell lung cancer (NSCLC) cells. Here, we examined whether the DNA damage response (DDR) could be a primary cytotoxic event underlying xanthatin-mediated anti-tumor activity. Using EdU incorporation assay in combination with novel imaging flow cytometry, our data indicated that xanthatin suppressed DNA replication, prevented cells from G2/M entry and increased the spot count of γH2AX nuclear foci. Given that checkpoint kinase 1 (Chk1) represents a core component in DDR-mediated cell cycle transition and the phosphorylation on Ser-345 is essential for kinase activation and function, we surprisingly found xanthatin distinctly modulated Ser-345 phosphorylation of Chk1 in A549 and H1299 cells. Further investigation on Cdc25C/CDK1/CyclinB1 signaling cascade in the absence or presence of pharmacological DDR inhibitors showed that xanthatin directly destabilized the protein levels of Cdc25C, and recovery of p53 expression in p53-deficient H1299 cells further intensified xanthatin-mediated inhibition of Cdc25C, suggesting p53-dependent regulation of Cdc25C in a DDR machinery. Moreover, exogenous expression of Cdc25C was also substantially repressed by xanthatin and partially impaired xanthatin-induced G2 arrest. In addition, xanthatin could induce accumulation of ubiquitinated Cdc25C without undergoing further proteasomal degradation. However, an alternative lysosomal proteolysis of Cdc25C was observed. Interestingly, lysosome-like vesicles were produced upon xanthatin treatment, accompanied by rapid accumulation of lysosomal associated membrane protein LAPM-1. Furthermore, vacuolar proton (V)-ATPases inhibitor bafilomycin A1 and lysosomal proteases inhibitor leupeptin could remarkably overturn the levels of Cdc25C in xanthatin-treated H1299 cells. Altogether, these data provide insight into how xanthatin can be effectively targeted DDR molecules towards certain tumors.
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Affiliation(s)
- Li Tao
- Department of Pharmacy, College of Medicine, Yangzhou University, Yangzhou, Jiangsu 225001, China
| | - Yuzhu Cao
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, China
| | - Zhonghong Wei
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, China
| | - Qi Jia
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, China
| | - Suyun Yu
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, China
| | - Jinqiu Zhong
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, China
| | - Ainyun Wang
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, China
| | - James R Woodgett
- Lunenfeld-Tanenbaum Research Institute, Sinai Health System, Toronto, Ontario M5G 1X5, Canada; Department of Medical Biophysics, University of Toronto, Toronto, Ontario M5G 1X5, Canada.
| | - Yin Lu
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, China.
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