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Qin Y, Yang J, Li H, Li J. Recent advances in the therapeutic potential of nobiletin against respiratory diseases. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 128:155506. [PMID: 38522319 DOI: 10.1016/j.phymed.2024.155506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 02/04/2024] [Accepted: 02/28/2024] [Indexed: 03/26/2024]
Abstract
BACKGROUND Nobiletin is a natural polymethoxylated flavonoid widely present in citrus fruit peels. It has been demonstrated to exert the effects of anti-tumor, anti-inflammation, anti-oxidative, anti-apoptotic and improve cardiovascular function. Increasing evidences suggest that nobiletin plays an important role in respiratory diseases (RDs) treatment. OBJECTIVE This review aimed to investigate the therapeutic potential of nobiletin against RDs, such as lung cancer, COPD, pulmonary fibrosis, asthma, pulmonary infection, acute lung injury, coronavirus disease 2019, and pulmonary arterial hypertension. METHODS We retrieved extensive literature of relevant literatures in English until June 26, 2023 from the database of PubMed, Web of Science, and Scopus databases. The keywords of "nobiletin and lung", "nobiletin and respiratory disease", "nobiletin and chronic respiratory diseases", "nobiletin and metabolites", "nobiletin and pharmacokinetics", "nobiletin and toxicity" were searched in pairs. A total of 298 literatures were retrieved from the above database. After excluding the duplicates and reviews, 53 were included in the current review. RESULTS We found that the therapeutic mechanisms are based on different signaling pathways. Firstly, nobiletin inhibited the proliferation and suppressed the invasion and migration of cancer cells by regulating the related pathway or key target, like Bcl-2, PD-L1, PARP, and Akt/GSK3β/β-catenin in lung cancer treatment. Secondly, nobiletin treats COPD and ALI by targeting classical signaling pathway mediating inflammation. Besides, the available findings show that nobiletin exerts the effect of PF treatment via regulating mTOR pathway. CONCLUSIONS With the wide range of pharmacological activities, high efficiency and low toxicity, nobiletin can be used as a potential agent for preventing and treating RDs. These findings will contribute to further research on the molecular mechanisms of nobiletin and facilitate in-depth studies on nobiletin at both preclinical and clinical levels for the treatment of RDs.
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Affiliation(s)
- Yanqin Qin
- Co-construction Collaborative Innovation Center for Chinese Medicine and Respiratory Diseases by Henan and Education Ministry of P.R. China, Henan Key Laboratory of Chinese Medicine for Respiratory Disease, Henan University of Chinese Medicine, Zhengzhou, 450046, Henan province, China; Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou, 450046, Henan Province, China
| | - Jingfan Yang
- Co-construction Collaborative Innovation Center for Chinese Medicine and Respiratory Diseases by Henan and Education Ministry of P.R. China, Henan Key Laboratory of Chinese Medicine for Respiratory Disease, Henan University of Chinese Medicine, Zhengzhou, 450046, Henan province, China
| | - Haibo Li
- Co-construction Collaborative Innovation Center for Chinese Medicine and Respiratory Diseases by Henan and Education Ministry of P.R. China, Henan Key Laboratory of Chinese Medicine for Respiratory Disease, Henan University of Chinese Medicine, Zhengzhou, 450046, Henan province, China
| | - Jiansheng Li
- Co-construction Collaborative Innovation Center for Chinese Medicine and Respiratory Diseases by Henan and Education Ministry of P.R. China, Henan Key Laboratory of Chinese Medicine for Respiratory Disease, Henan University of Chinese Medicine, Zhengzhou, 450046, Henan province, China; Department of Respiratory Disease, The first Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, 450046, Henan province, China.
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Lee SH, Li XH, Lu QY, Zhan CL, Kim JD, Lee GH, Sim JM, Cui XS. Nobiletin enhances mitochondrial function by regulating SIRT1/PGC-1α signaling in porcine oocytes during in vitro maturation. Biochem Biophys Res Commun 2024; 706:149747. [PMID: 38479243 DOI: 10.1016/j.bbrc.2024.149747] [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: 12/21/2023] [Revised: 02/23/2024] [Accepted: 03/04/2024] [Indexed: 03/24/2024]
Abstract
Nobiletin is a natural flavonoid found in citrus fruits with beneficial effects, including anti-inflammatory, anti-cancer and anti-oxidation effects. The aim of this study was to investigate whether nobiletin improves mitochondrial function in porcine oocytes and examine the underlying mechanism. Oocytes enclosed by cumulus cells were cultured in TCM-199 for 44 h with 0.1% dimethyl sulfoxide (control), or supplemented with 5, 10, 25, and 50 μM of nobiletin (Nob5, Nob10, Nob25, and Nob50, respectively). Oocyte maturation rate was significantly enhanced in Nob10 (70.26 ± 0.45%) compared to the other groups (control: 60.12 ± 0.47%; Nob5: 59.44 ± 1.63%; Nob25: 63.15 ± 1.38%; Nob50: 46.57 ± 1.19%). The addition of nobiletin reduced the levels of reactive oxygen species and increased glutathione levels. Moreover, Nob10 promoted mitochondrial biogenesis by upregulating the protein levels of sirtuin 1 (SIRT1) and peroxisome proliferator-activated receptor-gamma coactivator 1α (PGC-1α). This resulted in an increase in the number of active mitochondria, mitochondrial DNA copy number, mitochondrial membrane potential, and ATP production, thereby enhancing mitochondrial function. The protein level of p53 decreased, followed by the phosphorylation of B-cell lymphoma 2, suggesting a reduction in mitochondria-mediated apoptosis in the Nob10 group. Additionally, the release of cytochrome c from the mitochondria was significantly diminished along with a decrease in the protein expression of caspase 3. Thus, nobiletin has a great potential to promote the in vitro maturation of porcine oocytes by suppressing oxidative stress and promoting mitochondrial function through the upregulation of the SIRT1/PGC-1α signaling pathway.
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Affiliation(s)
- Song-Hee Lee
- Department of Animal Science, Chungbuk National University, Cheongju, Chungbuk, 28644, Republic of Korea
| | - Xiao-Han Li
- Department of Animal Science, Chungbuk National University, Cheongju, Chungbuk, 28644, Republic of Korea
| | - Qin-Yue Lu
- Department of Animal Science, Chungbuk National University, Cheongju, Chungbuk, 28644, Republic of Korea
| | - Cheng-Lin Zhan
- Department of Animal Science, Chungbuk National University, Cheongju, Chungbuk, 28644, Republic of Korea
| | - Ji-Dam Kim
- Department of Animal Science, Chungbuk National University, Cheongju, Chungbuk, 28644, Republic of Korea
| | - Gyu-Hyun Lee
- Department of Animal Science, Chungbuk National University, Cheongju, Chungbuk, 28644, Republic of Korea
| | - Jae-Min Sim
- Department of Animal Science, Chungbuk National University, Cheongju, Chungbuk, 28644, Republic of Korea
| | - Xiang-Shun Cui
- Department of Animal Science, Chungbuk National University, Cheongju, Chungbuk, 28644, Republic of Korea.
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Wang H, Tian Q, Zhang R, Du Q, Hu J, Gao T, Gao S, Fan K, Cheng X, Yan S, Zheng G, Dong H. Nobiletin alleviates atherosclerosis by inhibiting lipid uptake via the PPARG/CD36 pathway. Lipids Health Dis 2024; 23:76. [PMID: 38468335 PMCID: PMC10926578 DOI: 10.1186/s12944-024-02049-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Accepted: 02/18/2024] [Indexed: 03/13/2024] Open
Abstract
BACKGROUND Atherosclerosis (AS) is a persistent inflammatory condition triggered and exacerbated by several factors including lipid accumulation, endothelial dysfunction and macrophages infiltration. Nobiletin (NOB) has been reported to alleviate atherosclerosis; however, the underlying mechanism remains incompletely understood. METHODS This study involved comprehensive bioinformatic analysis, including multidatabase target prediction; GO and KEGG enrichment analyses for function and pathway exploration; DeepSite and AutoDock for drug binding site prediction; and CIBERSORT for immune cell involvement. In addition, target intervention was verified via cell scratch assays, oil red O staining, ELISA, flow cytometry, qRT‒PCR and Western blotting. In addition, by establishing a mouse model of AS, it was demonstrated that NOB attenuated lipid accumulation and the extent of atherosclerotic lesions. RESULTS (1) Altogether, 141 potentially targetable genes were identified through which NOB could intervene in atherosclerosis. (2) Lipid and atherosclerosis, fluid shear stress and atherosclerosis may be the dominant pathways and potential mechanisms. (3) ALB, AKT1, CASP3 and 7 other genes were identified as the top 10 target genes. (4) Six genes, including PPARG, MMP9, SRC and 3 other genes, were related to the M0 fraction. (5) CD36 and PPARG were upregulated in atherosclerosis samples compared to the normal control. (6) By inhibiting lipid uptake in RAW264.7 cells, NOB prevents the formation of foam cell. (7) In RAW264.7 cells, the inhibitory effect of oxidized low-density lipoprotein on foam cells formation and lipid accumulation was closely associated with the PPARG signaling pathway. (8) In vivo validation showed that NOB significantly attenuated intra-arterial lipid accumulation and macrophage infiltration and reduced CD36 expression. CONCLUSIONS Nobiletin alleviates atherosclerosis by inhibiting lipid uptake via the PPARG/CD36 pathway.
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Affiliation(s)
- Heng Wang
- Department of Vascular Surgery, The Second Hospital of Shanxi Medical University, Taiyuan, Shanxi, China
| | - Qinqin Tian
- Department of Vascular Surgery, The Second Hospital of Shanxi Medical University, Taiyuan, Shanxi, China
| | - Ruijing Zhang
- Department of Nephrology, The Second Hospital of Shanxi Medical University, Taiyuan, Shanxi, China
| | - Qiujing Du
- Jiangyin People's Hospital, Wuxi, Jiangsu, China
- Shanxi Bethune Hospital, Third Hospital of Shanxi Medical University, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Taiyuan, Shanxi, China
| | - Jie Hu
- Department of Vascular Surgery, The Second Hospital of Shanxi Medical University, Taiyuan, Shanxi, China
| | - Tingting Gao
- Department of Vascular Surgery, The Second Hospital of Shanxi Medical University, Taiyuan, Shanxi, China
| | - Siqi Gao
- Department of Vascular Surgery, The Second Hospital of Shanxi Medical University, Taiyuan, Shanxi, China
| | - Keyi Fan
- Department of Vascular Surgery, The Second Hospital of Shanxi Medical University, Taiyuan, Shanxi, China
| | - Xing Cheng
- Department of Vascular Surgery, The Second Hospital of Shanxi Medical University, Taiyuan, Shanxi, China
| | - Sheng Yan
- Department of Vascular Surgery, The Second Hospital of Shanxi Medical University, Taiyuan, Shanxi, China
| | - Guoping Zheng
- Department of Vascular Surgery, The Second Hospital of Shanxi Medical University, Taiyuan, Shanxi, China.
- Centre for Transplant and Renal Research, Westmead Institute for Medical Research, The University of Sydney, Sydney, NSW, Australia.
| | - Honglin Dong
- Department of Vascular Surgery, The Second Hospital of Shanxi Medical University, Taiyuan, Shanxi, China.
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Shen Y, Sheng R, Guo R. Application of Zebrafish as a Model for Anti-Cancer Activity Evaluation and Toxicity Testing of Natural Products. Pharmaceuticals (Basel) 2023; 16:827. [PMID: 37375774 DOI: 10.3390/ph16060827] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 05/27/2023] [Accepted: 05/28/2023] [Indexed: 06/29/2023] Open
Abstract
Developing natural product-based anti-cancer drugs/agents is a promising way to overcome the serious side effects and toxicity of traditional chemotherapeutics for cancer treatment. However, rapid assessment of the in vivo anti-cancer activities of natural products is a challenge. Alternatively, zebrafish are useful model organisms and perform well in addressing this challenging issue. Nowadays, a growing number of studies have utilized zebrafish models to evaluate the in vivo activities of natural compounds. Herein, we reviewed the application of zebrafish models for evaluating the anti-cancer activity and toxicity of natural products over the past years, summarized its process and benefits, and provided future outlooks for the development of natural product-based anti-cancer drugs.
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Affiliation(s)
- Yifan Shen
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China
| | - Ruilong Sheng
- CQM-Centro de Química da Madeira, Campus da Penteada, Universidade da Madeira, 9000-390 Funchal, Portugal
| | - Ruihua Guo
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China
- Shanghai Engineering Research Center of Aquatic-Product Processing & Preservation, Shanghai 201306, China
- Laboratory of Quality and Safety Risk Assessment for Aquatic Products on Storage and Preservation (Shanghai), Ministry of Agriculture, Shanghai 201306, China
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The Citrus Flavonoid Nobiletin Downregulates Angiopoietin-like Protein 3 (ANGPTL3) Expression and Exhibits Lipid-Modulating Effects in Hepatic Cells and Adult Zebrafish Models. Int J Mol Sci 2022; 23:ijms232012485. [PMID: 36293338 PMCID: PMC9604320 DOI: 10.3390/ijms232012485] [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: 09/20/2022] [Revised: 10/11/2022] [Accepted: 10/13/2022] [Indexed: 11/22/2022] Open
Abstract
Nobiletin, a dietary citrus flavonoid, exerts biological activities against hyperlipidemia, obesity, and atherosclerotic cardiovascular diseases (ASCVDs). The aim of this study was to explore the lipid-lowering effects of nobiletin and the underlying molecular mechanisms in vitro in hepatic cells and in vivo in zebrafish models. Transcriptome and gene ontology (GO) analyses of differentially expressed genes (DEGs) by gene set enrichment analysis (GSEA) showed that a set of twenty-eight core enrichment DEGs associated with “GO BP regulation of lipid metabolic process” (GO: 0019216) were significantly downregulated in nobiletin-treated cells. Among these genes, angiopoietin-like 3 (ANGPTL3), an inhibitor of lipoprotein lipase (LPL) activity that regulates TG-rich lipoprotein (TGRL) metabolism in circulation, was the protein most markedly downregulated by nobiletin. Nobiletin (20 and 40 μM) significantly reduced the levels of ANGPTL3 mRNA and intracellular and secreted ANGPTL3 proteins in hepatic cell lines. Furthermore, alleviation of secreted ANGPTL3 production by nobiletin was found to reinstate LPL catalytic activity. Nobiletin significantly inhibited ANGPTL3 promoter activity and attenuated the transcription factor liver X receptor-α (LXRα)-mediated ANGPTL3 transcription. Molecular docking analysis predicted that nobiletin could bind to the ligand-binding domain of LXRα, thereby counteracting LXRα activation. In animal studies, orally administered nobiletin significantly alleviated the levels of plasma triglycerides (TGs) and cholesterol in zebrafish fed a high-fat diet. Moreover, nobiletin significantly reduced the amounts of hepatic ANGPTL3 protein in zebrafish. Our findings suggest that nobiletin may regulate the LXRα-ANGPTL3-LPL axis and exhibit lipid-modulating effects in vitro and in vivo. Thus, nobiletin is a potential ANGPTL3 inhibitor for the regulation of lipid metabolism to ameliorate dyslipidemia and ASCVDs.
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Abstract
Cancer resistance to therapy is a big issue in cancer therapy. Tumours may develop some mechanisms to reduce the induction of cell death, thus stimulating tumour growth. Cancer cells may show a low expression and activity of tumour suppressor genes and a low response to anti-tumour immunity. These mutations can increase the resistance of cancer cells to programmed cell death mechanisms such as apoptosis, ferroptosis, pyroptosis, autophagic cell death, and some others. The upregulation of some mediators and transcription factors such as Akt, nuclear factor of κB, signal transducer and activator of transcription 3, Bcl-2, and others can inhibit cell death in cancer cells. Using adjuvants to induce the killing of cancer cells is an interesting strategy in cancer therapy. Nobiletin (NOB) is a herbal-derived agent with fascinating anti-cancer properties. It has been shown to induce the generation of endogenous ROS by cancer cells, leading to damage to critical macromolecules and finally cell death. NOB may induce the activity of p53 and pro-apoptosis mediators, and also inhibit the expression and nuclear translocation of anti-apoptosis mediators. In addition, NOB may induce cancer cell killing by modulating other mechanisms that are involved in programmed cell death mechanisms. This review aims to discuss the cellular and molecular mechanisms of the programmed cell death in cancer by NOB via modulating different types of cell death in cancer.
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Quantitative Analysis of Factors Regulating Angiogenesis for Stem Cell Therapy. BIOLOGY 2021; 10:biology10111212. [PMID: 34827205 PMCID: PMC8614798 DOI: 10.3390/biology10111212] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 11/10/2021] [Accepted: 11/13/2021] [Indexed: 12/11/2022]
Abstract
Simple Summary The control of angiogenesis is essential in disease treatment or regenerative medicine. We conducted a clinical study of dedifferentiated fat (DFAT) cells, a kind of mesenchymal stem cells, by applying cell transplantation therapy to induce angiogenesis in patients with severe ischemic disease. This study aimed to analyze the effect of molecules that regulate angiogenesis in vitro and clarify their molecular mechanisms for therapeutic purposes. Normal human umbilical venous endothelial cells (HUVECs) were cultured in the presence of vascular endothelial growth factor (VEGF). Recombinant human angiopoietin-1-producing cells, conditioned media, mouse DFAT cells, and antioxidant polyphenols were added to this system at various concentrations. After 11 days, the cultures were immunostained with CD31 (PECAM-1), and microscopic images were subjected to analysis (area, length, joint, and path) by using software to quantitatively analyze blood vessel formation. The expression of angiogenic markers and COX pathway genes were analyzed by RT-PCR. As a result, the dose-dependent angiogenesis-promoting effect of rAng-1-producing cells, conditioned medium, or commercially available recombinant Ang-1 were observed. DFAT cells also promoted angiogenesis, whereas polyphenols inhibited angiogenesis in a dose-dependent manner. Abstract (1) Background: The control of angiogenesis is essential in disease treatment. We investigated angiogenesis-promoting or -suppressing factors and their molecular mechanisms. (2) Methods: Angiogenesis from HUVECs was quantitatively analyzed using the Angiogenesis Analysis Kit (Kurabo, Osaka, Japan). Human rAng-1-producing 107-35 CHO cells or mouse DFAT-D1 cells were co-cultured with HUVEC. Antioxidant polyphenols were added to the culture. Gene expression was analyzed by RT-PCR. (3) Results: The addition of rAng-1-producing cells, their culture supernatant, or commercially available rAng-1 showed a promoting effect on angiogenesis. The co-culture of DFAT-D1 cells promoted angiogenesis. Polyphenols showed a dose-dependent inhibitory effect on angiogenesis. Luteolin and quercetin showed remarkable anti-angiogenic effects. The expression of vWF, Flk1, and PECAM-1 was increased by adding rAng-1-producing cell culture supernatant. Polyphenols suppressed these genes. Apigenin and luteolin markedly suppressed α-SMA and Flk1. Resveratrol and quercetin enhanced the expression of PPARγ, and luteolin suppressed the expression of COX-1. The expression of endothelial nitric oxide synthase (eNOS), an oxidative stress-related gene, was slightly increased by luteolin. These results suggest that polyphenols induce ROS reduction. (4) Conclusions: We showed the promoting effect of Ang-1 or DFAT and the suppressing effect of polyphenols on angiogenesis and studied their molecular mechanisms. These results help control angiogenesis in regenerative therapy.
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Rampino A, Annese T, Margari A, Tamma R, Ribatti D. Nutraceuticals and their role in tumor angiogenesis. Exp Cell Res 2021; 408:112859. [PMID: 34637764 DOI: 10.1016/j.yexcr.2021.112859] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 09/28/2021] [Accepted: 10/02/2021] [Indexed: 01/15/2023]
Abstract
Angiogenesis plays a pivotal role in cancer initiation, maintenance, and progression. Diet may inhibit, retard or reverse these processes affecting angiogenesis (angioprevention). Nutraceuticals, such as omega-3 fatty acids, amino acids, proteins, vitamins, minerals, fibers, and phenolic compounds, improve health benefits as they are a source of bioactive compounds that, among other effects, can regulate angiogenesis. The literature concerning the pro-angiogenic and/or anti-angiogenic nutraceuticals and the possible activated pathways in cancer and other non-neoplastic diseases by in vivo and in vitro experiments are reviewed.
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Affiliation(s)
- Antonio Rampino
- Department of Basic Medical Sciences, Neurosciences and Sensory Organs, University of Bari Medical School, Bari, Italy
| | - Tiziana Annese
- Department of Basic Medical Sciences, Neurosciences and Sensory Organs, University of Bari Medical School, Bari, Italy
| | - Anna Margari
- Department of Basic Medical Sciences, Neurosciences and Sensory Organs, University of Bari Medical School, Bari, Italy
| | - Roberto Tamma
- Department of Basic Medical Sciences, Neurosciences and Sensory Organs, University of Bari Medical School, Bari, Italy
| | - Domenico Ribatti
- Department of Basic Medical Sciences, Neurosciences and Sensory Organs, University of Bari Medical School, Bari, Italy.
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Abbate F, Maugeri A, Laurà R, Levanti M, Navarra M, Cirmi S, Germanà A. Zebrafish as a Useful Model to Study Oxidative Stress-Linked Disorders: Focus on Flavonoids. Antioxidants (Basel) 2021; 10:antiox10050668. [PMID: 33922976 PMCID: PMC8147052 DOI: 10.3390/antiox10050668] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 04/19/2021] [Accepted: 04/23/2021] [Indexed: 12/22/2022] Open
Abstract
The zebrafish is considered one of the most versatile experimental animal models. The transparency of the embryos, the small size, the rapid development and the homology with higher vertebrates have made the zebrafish a valuable model also for drug screening. Its use is closely related for the determination of bioactivity, toxicity and off-target side effects of novel drug candidates, which also allows a thorough evaluation of new targets; thus, it may represent a suitable model for drug screening and the optimization of novel candidates. Flavonoids are polyphenolic compounds widely present in fruits, vegetables and cereals. Polyphenols are important for both plants and humans, considering their involvement in defense mechanisms, particularly against oxidative stress. They protect plants from biotic and abiotic stressors and prevent or treat oxidative-based human diseases. For these reasons, polyphenols are used as nutraceuticals, functional foods and supplements by the pharmaceutical industry. Therefore, the most relevant findings on zebrafish as a useful experimental model to study oxidative stress-linked disorders, focusing on the biological activities of flavonoids, are here summarized and reviewed.
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Affiliation(s)
- Francesco Abbate
- Department of Veterinary Sciences, University of Messina, 98168 Messina, Italy; (R.L.); (M.L.); (A.G.)
- Correspondence: (F.A.); (S.C.)
| | - Alessandro Maugeri
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98168 Messina, Italy; (A.M.); (M.N.)
| | - Rosaria Laurà
- Department of Veterinary Sciences, University of Messina, 98168 Messina, Italy; (R.L.); (M.L.); (A.G.)
| | - Maria Levanti
- Department of Veterinary Sciences, University of Messina, 98168 Messina, Italy; (R.L.); (M.L.); (A.G.)
| | - Michele Navarra
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98168 Messina, Italy; (A.M.); (M.N.)
| | - Santa Cirmi
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98168 Messina, Italy; (A.M.); (M.N.)
- Department of Pharmacy-Drug Sciences, University of Bari “Aldo Moro”, 70125 Bari, Italy
- Correspondence: (F.A.); (S.C.)
| | - Antonino Germanà
- Department of Veterinary Sciences, University of Messina, 98168 Messina, Italy; (R.L.); (M.L.); (A.G.)
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Wang Z, Yang B, Chen X, Zhou Q, Li H, Chen S, Yin D, He H, He M. Nobiletin Regulates ROS/ADMA/DDAHII/eNOS/NO Pathway and Alleviates Vascular Endothelium Injury by Iron Overload. Biol Trace Elem Res 2020; 198:87-97. [PMID: 32002792 DOI: 10.1007/s12011-020-02038-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2019] [Accepted: 01/07/2020] [Indexed: 12/19/2022]
Abstract
Iron overload is harmful to health and associates with intracellular excessive reactive oxygen species (ROS) generation. Nobiletin (Nob) is known to be antioxidant and anti-inflammatory. However, whether Nob can protect endothelial cells against iron overload has not been studied, and the specific mechanism has not yet been elucidated. In this study, we have identified the protective effects of Nob, and its underlying molecular mechanism in human umbilical vein endothelial cells (HUVECs) suffered from iron overload via ROS/ADMA/DDAHII/eNOS/NO pathway. We found that compared with 50 μM iron dextran treatment, co-treatment with 20 μM Nob increased cell viability and decreased lactate dehydrogenase activity. Besides, Nob could upregulate DDAHII expression and activity, promote eNOS phosphorylation to produce more NO, reduce ADMA content, and therefore increase superoxide dismutase, catalase, and glutathione peroxidase activities, and decrease malondialdehyde level and ROS generation. Nob also inhibited mitochondrial permeability transition pore (mPTP) openness and cleaved caspase-3 expression, and decreased apoptosis induced by iron overload. These results were consistent when Nob was replaced by the positive control reagents L-arginine (a competitive substrate of ADMA), cyclosporin A (an mPTP closing agent), or edaravone (a free radical scavenger). The addition of pAD/DDAHII-shRNA adenovirus reversed the above effects of Nob. These data suggested that the protective mechanism of Nob was to inhibit ROS burst, upregulate DDAHII expression and activity, promote eNOS phosphorylation, produce NO, reduce ADMA content, and ultimately alleviate iron overload damage in vascular endothelium.
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Affiliation(s)
- Zhiqing Wang
- Jiangxi Provincial Institute of Hypertension, the First Affiliated Hospital of Nanchang University, Nanchang, 330006, China
| | - Bin Yang
- Jiangxi Provincial Key Laboratory of Basic Pharmacology, Nanchang University School of Pharmaceutical Science, Nanchang, 330006, China
| | - Xuepiao Chen
- Jiangxi Provincial Key Laboratory of Basic Pharmacology, Nanchang University School of Pharmaceutical Science, Nanchang, 330006, China
| | - Qing Zhou
- Jiangxi Provincial Key Laboratory of Basic Pharmacology, Nanchang University School of Pharmaceutical Science, Nanchang, 330006, China
| | - Hongwei Li
- Jiangxi Provincial Key Laboratory of Basic Pharmacology, Nanchang University School of Pharmaceutical Science, Nanchang, 330006, China
| | - Shuping Chen
- Jiangxi Provincial Key Laboratory of Basic Pharmacology, Nanchang University School of Pharmaceutical Science, Nanchang, 330006, China
| | - Dong Yin
- Jiangxi Provincial Key Laboratory of Molecular Medicine, the Second Affiliated Hospital, Nanchang University, Nanchang, 330006, China
| | - Huan He
- Jiangxi Provincial Key Laboratory of Basic Pharmacology, Nanchang University School of Pharmaceutical Science, Nanchang, 330006, China.
| | - Ming He
- Jiangxi Provincial Institute of Hypertension, the First Affiliated Hospital of Nanchang University, Nanchang, 330006, China
- Jiangxi Provincial Key Laboratory of Basic Pharmacology, Nanchang University School of Pharmaceutical Science, Nanchang, 330006, China
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Antioxidant Nobiletin Enhances Oocyte Maturation and Subsequent Embryo Development and Quality. Int J Mol Sci 2020; 21:ijms21155340. [PMID: 32727154 PMCID: PMC7432792 DOI: 10.3390/ijms21155340] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 07/23/2020] [Accepted: 07/24/2020] [Indexed: 12/16/2022] Open
Abstract
Nobiletin is a polymethoxylated flavonoid isolated from citrus fruits with wide biological effects, including inhibition of reactive oxygen species (ROS) production and cell cycle regulation, important factors for oocyte in vitro maturation (IVM). Therefore, the objective of the present study was to evaluate the antioxidant activity of nobiletin during IVM on matured bovine oocyte quality (nuclear and cytoplasmic maturation; oocyte mitochondrial activity; intracellular ROS and glutathione (GSH) levels) and their developmental competence, steroidogenesis of granulosa cells after maturation, as well as quantitative changes of gene expression in matured oocytes, their cumulus cells, and resulting blastocysts. Bovine cumulus-oocyte complexes were in vitro matured in TCM-199 +10% fetal calf serum (FCS) and 10 ng/mL epidermal growth factor (EGF) (Control) supplemented with 10, 25, 50, or 100 μM of nobiletin (Nob10, Nob25, Nob50, and Nob100, respectively) or 0.1% dimethyl sulfoxide (CDMSO: vehicle for nobiletin dilution). A significantly higher percentage of matured oocytes in metaphase II was observed in Nob25 and Nob50 compared to other groups. Similarly, cleavage rate and cumulative blastocyst yield on Days 7 and 8 were significantly higher for Nob25 and Nob50 groups. Oocytes matured with 25 and 50 μM nobiletin showed a higher rate of migration of cortical granules and mitochondrial activity and a reduction in the ROS and GSH content in comparison with all other groups. This was linked to a modulation in the expression of genes related to metabolism (CYP51A1), communication (GJA1), apoptosis (BCL2), maturation (BMP15 and MAPK1), and oxidative stress (SOD2 and CLIC1). In conclusion, nobiletin offers a novel alternative for counteracting the effects of the increase in the production of ROS during IVM, improves oocyte nuclear and cytoplasmic maturation, and subsequent embryo development and quality in cattle.
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Cibecchini G, Veronesi M, Catelani T, Bandiera T, Guarnieri D, Pompa PP. Antiangiogenic Effect of Graphene Oxide in Primary Human Endothelial Cells. ACS APPLIED MATERIALS & INTERFACES 2020; 12:22507-22518. [PMID: 32255338 DOI: 10.1021/acsami.0c03404] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In this work, we exploited an integrated approach combining systematic analysis of cytotoxicity, angiogenic potential, and metabolomics to shed light on the effects of graphene oxide (GO) on primary human endothelial Huvec cells. Contrary to the outcomes observed in immortalized cell lines able to internalize a similar amount of GO, significant toxicity was found in Huvec cells at high GO concentrations (25 and 50 μg/mL). In particular, we found that the steric hindrance of GO intracellular aggregates perturbed the correct assembly of cytoskeleton and distribution of mitochondria. This was found to be primarily associated with oxidative stress and impairment of cell migration, affecting the formation of capillary-like structures. In addition, preliminary metabolomics characterization demonstrated that GO affects the consumption of niacinamide, a precursor of energy carriers, and several amino acids involved in the regulation of angiogenesis. Our findings suggest that GO acts at different cellular levels, both directly and indirectly. More precisely, the combination of the physical hindrance of internalized GO aggregates, induction of oxidative stress, and alteration of some metabolic pathways leads to a significant antiangiogenic effect in primary human endothelial cells.
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Affiliation(s)
- Giulia Cibecchini
- Nanobiointeractions&Nanodiagnostics, Istituto Italiano di Tecnologia (IIT), Via Morego 30, 16163 Genova, Italy
- Department of Chemistry and Industrial Chemistry, University of Genova, Via Dodecaneso 31, 16146 Genova, Italy
| | - Marina Veronesi
- D3-PharmaChemistry, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Tiziano Catelani
- Electron Microscopy Facility, Istituto Italiano di Tecnologia, Via Morego, 30, 16163 Genova, Italy
- Piattaforma Interdipartimentale di Microscopia, Università Degli Studi di Milano-Bicocca, Piazza Della Scienza 2, Milano 20126, Italy
| | - Tiziano Bandiera
- D3-PharmaChemistry, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Daniela Guarnieri
- Nanobiointeractions&Nanodiagnostics, Istituto Italiano di Tecnologia (IIT), Via Morego 30, 16163 Genova, Italy
- Dipartimento di Chimica e Biologia "A. Zambelli", Università di Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Salerno, Italy
| | - Pier Paolo Pompa
- Nanobiointeractions&Nanodiagnostics, Istituto Italiano di Tecnologia (IIT), Via Morego 30, 16163 Genova, Italy
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13
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Nakajima A, Nemoto K, Ohizumi Y. An evaluation of the genotoxicity and subchronic toxicity of the peel extract of Ponkan cultivar 'Ohta ponkan' (Citrus reticulata Blanco) that is rich in nobiletin and tangeretin with anti-dementia activity. Regul Toxicol Pharmacol 2020; 114:104670. [PMID: 32371103 DOI: 10.1016/j.yrtph.2020.104670] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 04/10/2020] [Accepted: 04/24/2020] [Indexed: 11/19/2022]
Abstract
Nobiletin and tangeretin are major components of polymethoxylated flavones in the peels of citrus fruits such as Citrus reticulata. Because nobiletin and tangeretin have attracted attention due to their beneficial health properties, citrus peel extracts, in which they are concentrated, have the potential to serve as a functional food ingredient to prevent diseases. In this study, a series of toxicological studies on the peel extract of Ponkan cultivar 'Ohta ponkan' (Citrus reticulata Blanco), was conducted. No mutagenic activity was observed in a bacterial reverse mutation test, whereas chromosomal aberrations were induced in an in vitro mammalian chromosomal aberration test. No genotoxicity was observed in an in vivo mammalian micronucleus test. In a 90-day study at daily doses of 54, 180, or 540 mg/kg body weight (bw)/day, hyaline droplet nephropathy, which specifically occurs in adult male rats, was observed in males of 540 mg/kg bw/day group. No other adverse effects were observed in the 90-day study. The no adverse effect level in the 90-day study was considered to be 540 mg/kg bw/day for female rats and less than 540 mg/kg bw/day for male rats.
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Affiliation(s)
- Akira Nakajima
- Department of Applied Biology and Food Sciences, Faculty of Agriculture and Life Science, Hirosaki University, 3 Bunkyo-cho, Hirosaki, Aomori, 036-8561, Japan; Kansei Fukushi Research Institute, Tohoku Fukushi University, 6-149-1 Kunimigaoka, Aoba-ku, Sendai, Miyagi, 989-3201, Japan.
| | - Kiyomitsu Nemoto
- Department of Molecular Toxicology, Faculty of Pharmaceutical Sciences, Toho University, Miyama 2-2-1, Funabashi, Chiba, 274-8510, Japan
| | - Yasushi Ohizumi
- Kansei Fukushi Research Institute, Tohoku Fukushi University, 6-149-1 Kunimigaoka, Aoba-ku, Sendai, Miyagi, 989-3201, Japan.
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14
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Yang M, Sun F, Zhou Y, He M, Yao P, Peng Y, Luo F, Liu F. Preventive effect of lemon seed flavonoids on carbon tetrachloride-induced liver injury in mice. RSC Adv 2020; 10:12800-12809. [PMID: 35492116 PMCID: PMC9051252 DOI: 10.1039/d0ra01415j] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Accepted: 03/18/2020] [Indexed: 01/01/2023] Open
Abstract
The aim of this study was to determine the preventive effect of lemon seed flavonoids (LSF) on carbon tetrachloride-induced liver injury in mice. Liver injury was induced by injection with 2 mL kg-1 of carbon tetrachloride after administration of LSF by gavage. Liver index, serological parameters, and expression intensities of related mRNA and protein in the liver tissue were observed. The results indicated that LSF reduced liver weight and liver index, downregulated serum levels of AST, ALT, ALP, TG, TC, BUN, NO, and MDA, and upregulated levels of ALB, SOD, CAT, and GSH-Px in the mice with liver injury. It also downregulated serum cytokines, such as IL-6, IL-12, TNF-α, and IFN-γ in these mice. qPCR and western blot confirmed that LSF upregulated mRNA and protein expression of Mn-SOD, Cu/Zn-SOD, CAT, GSH-Px, and IκB-α, and downregulated expression of NF-κB-p65, iNOS, COX-2, TNF-α, IL-1β, and IL-6 in the liver tissue of mice with liver injury. The preventive effect on carbon tetrachloride-induced liver injury was attributed to (-)-epigallocatechin, caffeic acid, (-)-epicatechin, vitexin, quercetin, and hesperidin, which were active substances that were detected in LSF by HPLC. Moreover, the effect of LSF is similar to that of silymarin, but the synergistic effect of the five active substances working in concert acted to produce a more robust liver-protecting effect.
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Affiliation(s)
- Ming Yang
- Department of Pharmacy, Affiliated Hospital of North Sichuan Medical College Nanchong 637000 Sichuan China
| | - Fengjun Sun
- Department of Pharmacy, Southwest Hospital, Third Military Medical University (Army Medical University) Chongqing 400038 China
| | - Yue Zhou
- Department of Pharmacy, Affiliated Hospital of North Sichuan Medical College Nanchong 637000 Sichuan China
| | - Mei He
- Department of Pharmacy, Affiliated Hospital of North Sichuan Medical College Nanchong 637000 Sichuan China
| | - Pu Yao
- Department of Pharmacy, Southwest Hospital, Third Military Medical University (Army Medical University) Chongqing 400038 China
| | - Yuan Peng
- Department of Pharmacy, Affiliated Hospital of North Sichuan Medical College Nanchong 637000 Sichuan China
| | - Fei Luo
- Department of Pharmacy, Affiliated Hospital of North Sichuan Medical College Nanchong 637000 Sichuan China
| | - Fu Liu
- Department of Pharmacy, Affiliated Hospital of North Sichuan Medical College Nanchong 637000 Sichuan China
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15
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Xie L, Xie H, Chen C, Tao Z, Zhang C, Cai L. Inhibiting the PI3K/AKT/NF-κB signal pathway with nobiletin for attenuating the development of osteoarthritis: in vitro and in vivo studies. Food Funct 2019; 10:2161-2175. [PMID: 30938722 DOI: 10.1039/c8fo01786g] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Osteoarthritis (OA), an age-related degenerative disease, is characterized by progressive degradation of the articular cartilage. There is increasing evidence that nobiletin (NOB) exerts special biological functions in a variety of diseases. However, whether it protects against OA remains unknown. In this study, we investigated the anti-inflammatory and chondroprotective effects of NOB on IL-1β-induced human OA chondrocytes and in the surgical DMM mice OA models. In vitro, NOB treatment completely suppressed the overproduction of pro-inflammatory mediators, including PGE2, NO, COX-2, iNOS, TNF-α and IL-6 in IL-1β-induced human OA chondrocytes. Moreover, NOB exerted a potent inhibitory effect on the expression of MMP-13 and ADAMTS-5 as well as the degradation of aggrecan and collagen-II, which leads to the degradation of the extracellular matrix. Furthermore, NOB dramatically suppressed the IL-1β-stimulated phosphorylation of PI3K/Akt and activation of NF-κB in human OA chondrocytes. In addition, treatment with NOB not only prevented the destruction of cartilage and the thickening of subchondral bone but also relieved synovitis in mice OA models. In conclusion, our study suggests that NOB holds novel therapeutic potential for the treatment of OA.
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Affiliation(s)
- Linzhen Xie
- Department of Orthopaedic Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325000, China.
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16
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Potential Benefits of Nobiletin, A Citrus Flavonoid, against Alzheimer's Disease and Parkinson's Disease. Int J Mol Sci 2019; 20:ijms20143380. [PMID: 31295812 PMCID: PMC6678479 DOI: 10.3390/ijms20143380] [Citation(s) in RCA: 118] [Impact Index Per Article: 23.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 07/05/2019] [Accepted: 07/05/2019] [Indexed: 12/17/2022] Open
Abstract
Alzheimer’s disease (AD), which is characterized by the presence of amyloid-β (Aβ) plaques and neurofibrillary tangles, accompanied by neurodegeneration, is the most common form of age-related neurodegenerative disease. Parkinson’s disease (PD) is the second most common neurodegenerative disease after AD, and is characterized by early prominent loss of dopaminergic neurons in the substantia nigra pars compacta. As currently available treatments are not able to significantly alter the progression of these diseases, successful therapeutic and preventive interventions are strongly needed. In the course of our survey of substances from natural resources having anti-dementia and neuroprotective activity, we found nobiletin, a polymethoxylated flavone from the peel of Citrus depressa. Nobiletin improved cognitive deficits and the pathological features of AD, such as Aβ pathology, hyperphosphorylation of tau, and oxidative stress, in animal models of AD. In addition, nobiletin improved motor and cognitive deficits in PD animal models. These observations suggest that nobiletin has the potential to become a novel drug for the treatment and prevention of neurodegenerative diseases such as AD and PD.
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17
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A critical review on anti-angiogenic property of phytochemicals. J Nutr Biochem 2019; 71:1-15. [PMID: 31174052 DOI: 10.1016/j.jnutbio.2019.04.006] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 04/12/2019] [Accepted: 04/25/2019] [Indexed: 12/14/2022]
Abstract
Angiogenesis, a process involved in neovascularization, has been found to be associated with several metabolic diseases like cancer, retinopathy etc. Thus, currently, the focus on anti-angiogenic therapy for treatment and prevention of diseases has gained significant attention. Currently available Food and Drug Administration (FDA) approved drugs are targeting either vascular endothelial growth factor or it's receptor, but in the long term, these approaches were shown to cause several side effects and the chances of developing resistance to these drugs is also high. Therefore, identification of safe and cost-effective anti-angiogenic molecules is highly imperative. Over the past decades, dietary based natural compounds have been studied for their anti-angiogenic potential which provided avenues in improving the angiogenesis based therapy. In this review, major emphasis is given to the molecular mechanism behind anti-angiogenic effect of natural compounds from dietary sources.
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18
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Differential angiogenic activities of naringin and naringenin in zebrafish in vivo and human umbilical vein endothelial cells in vitro. J Funct Foods 2018. [DOI: 10.1016/j.jff.2018.08.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
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19
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Long W, Wang M, Luo X, Huang G, Chen J. Murrangatin suppresses angiogenesis induced by tumor cell-derived media and inhibits AKT activation in zebrafish and endothelial cells. DRUG DESIGN DEVELOPMENT AND THERAPY 2018; 12:3107-3115. [PMID: 30288018 PMCID: PMC6161741 DOI: 10.2147/dddt.s145956] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Introduction Lung cancer is a major cancer type and a leading cause of cancer-related death. Angiogenesis plays a crucial role in lung cancer pathogenesis and its inhibition is beneficial to patients. Materials and methods Murrangatin, a natural product, can inhibit the proliferation of lung cancer cells, so herein we investigated its anti-angiogenic effects in transgenic zebrafish TG (fli1: EGFP) and in lung cancer cell-induced angiogenesis in human umbilical vein endothelial cells. Results We found that murrangatin strongly inhibited the growth of subintestinal vessels in zebrafish embryos and tumor conditioned media-induced angiogenic phenotypes including cell proliferation, cell invasion, cell migration, and tube formation. Additionally, murrangatin greatly attenuated conditioned medium-induced AKT phosphorylation, but not extracellular signal-regulated kinase 1/2 phosphorylation. Discussion and conclusion These findings indicate that murrangatin can inhibit tumor-induced angiogensis, at least in part through the regulation of AKT signaling pathways. Murrangatin may, therefore, be a potential candidate for the development of new anti-lung-cancer drugs.
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Affiliation(s)
- Weiqing Long
- Department of Clinical Laboratory, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Mingjun Wang
- Department of Pharmacy, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Xiongming Luo
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China,
| | - Guixian Huang
- Department of Emergency, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Jianwen Chen
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China,
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20
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Miyata Y, Nagase T, Katsura Y, Takahashi H, Natsugari H, Oshitari T, Kosano H. In vitro studies on nobiletin isolated from citrus plants and the bioactive metabolites, inhibitory action against gelatinase enzymatic activity and the molecular mechanisms in human retinal Müller cell line. Biomed Pharmacother 2018. [PMID: 28623785 DOI: 10.1016/j.biopha.2017.06.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Diabetic retinopathy (DR) is the most common cause of vision loss in patients with diabetes mellitus. Despite the presence of effective therapy, DR is still a significant health burden. A recent research suggests that matrix metalloproteinases (MMPs) could be promising targets, which exert multiple actions on early- and late-stage pathogenesis of DR. Among the MMP family, gelatinases (MMP-2 and MMP-9) act as potent proinflammatory, proangiogenic, and pro-apoptotic factors. Therefore, the pharmacological inhibitory effect of gelatinases on retinal MMP-producing cells may be useful in the treatment or prevention of DR. Nobiletin isolated from citrus plants is a multi-functional polymethoxylated flavone, which exerts biological effects including inhibitory action against MMP activity in several cancer cells. In the present study, we demonstrated that nobiletin isolated from citrus plants attenuated MMP-9 enzymatic activity through the suppression of transcription for MMP-9 gene expression and augmentation of TIMP-1 production in retinal Müller cells. Nobiletin regulated MMP-9 gene expression and TIMP-1 by inhibiting the PI3K/Akt signaling pathway. In addition, we observed the augmentation of inhibitory action against MMP-9 enzymatic activity by 4'-demethylated nobiletin, which is a major metabolite of nobiletin. We believe that the enhancement of inhibitory action against MMP-9 enzymatic activity by 4'-demethylated nobiletin is through the dual inhibition on Erk1/2 and Akt phosphorylation. The structure-activity relationship analysis revealed that, for the enhancement of inhibitory action against MMP-9 enzymatic activity, demethylation at position 4' in B-ring was a key structural modification in Müller cells, which are an important source of MMPs found in vitreous fluid and retinal tissues in retinal proliferative diseases. These results suggested that nobiletin, derived from a natural source, may serve as a novel MMP inhibitor with minimal side effects, and lead compound for the design of more efficacious drugs.
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Affiliation(s)
- Yoshiki Miyata
- Faculty of Pharma-Sciences, Teikyo University, 2-11-1 Kaga, Itabashi-ku, Tokyo 173-8605, Japan
| | - Terumasa Nagase
- The fifth Department of Internal Medicine, Tokyo Medical University, 3-20-1 Ami, Ibaraki 300-0332, Japan
| | - Yoshiya Katsura
- The fifth Department of Internal Medicine, Tokyo Medical University, 3-20-1 Ami, Ibaraki 300-0332, Japan
| | - Hideyo Takahashi
- Faculty of Pharma-Sciences, Teikyo University, 2-11-1 Kaga, Itabashi-ku, Tokyo 173-8605, Japan.
| | - Hideaki Natsugari
- Faculty of Pharma-Sciences, Teikyo University, 2-11-1 Kaga, Itabashi-ku, Tokyo 173-8605, Japan
| | - Tetsuta Oshitari
- Faculty of Pharma-Sciences, Teikyo University, 2-11-1 Kaga, Itabashi-ku, Tokyo 173-8605, Japan
| | - Hiroshi Kosano
- Faculty of Pharma-Sciences, Teikyo University, 2-11-1 Kaga, Itabashi-ku, Tokyo 173-8605, Japan
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21
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Cheng HL, Hsieh MJ, Yang JS, Lin CW, Lue KH, Lu KH, Yang SF. Nobiletin inhibits human osteosarcoma cells metastasis by blocking ERK and JNK-mediated MMPs expression. Oncotarget 2018; 7:35208-23. [PMID: 27144433 PMCID: PMC5085222 DOI: 10.18632/oncotarget.9106] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Accepted: 04/11/2016] [Indexed: 12/12/2022] Open
Abstract
Nobiletin, a polymethoxyflavone, has a few pharmacological activities, including anti-inflammation and anti-cancer effects. However, its effect on human osteosarcoma progression remains uninvestigated. Therefore, we examined the effectiveness of nobiletin against cellular metastasis of human osteosarcoma and the underlying mechanisms. Nobiletin, up to 100 μM without cytotoxicity, significantly decreased motility, migration and invasion as well as enzymatic activities, protein levels and mRNA expressions of matrix metalloproteinase (MMP)-2 and MMP-9 in U2OS and HOS cells. In addition to inhibition of extracellular signal-regulated kinase (ERK) and c-Jun N-terminal kinase (JNK), the inhibitory effect of nobiletin on the DNA-binding activity of the transcription factor nuclear factor-kappa B (NF-κB), cAMP response element-binding protein (CREB), and specificity protein 1 (SP-1) in U2OS and HOS cells. Co-treatment with ERK and JNK inhibitors and nobiletin further reduced U2OS cells migration and invasion. These results indicated that nobiletin inhibits human osteosarcoma U2OS and HOS cells motility, migration and invasion by down-regulating MMP-2 and MMP-9 expressions via ERK and JNK pathways and through the inactivation of downstream NF-κB, CREB, and SP-1. Nobiletin has the potential to serve as an anti-metastatic agent for treating osteosarcoma.
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Affiliation(s)
- Hsin-Lin Cheng
- Institute of Medicine, Chung Shan Medical University, Taichung 40201, Taiwan
| | - Ming-Ju Hsieh
- Institute of Medicine, Chung Shan Medical University, Taichung 40201, Taiwan.,Cancer Research Center, Changhua Christian Hospital, Changhua 500, Taiwan
| | - Jia-Sin Yang
- Institute of Medicine, Chung Shan Medical University, Taichung 40201, Taiwan.,Department of Medical Research, Chung Shan Medical University Hospital, Taichung 40201, Taiwan
| | - Chiao-Wen Lin
- Institute of Oral Sciences, Chung Shan Medical University, Taichung 40201, Taiwan.,Department of Dentistry, Chung Shan Medical University Hospital, Taichung 40201, Taiwan
| | - Ko-Haung Lue
- School of Medicine, Chung Shan Medical University, Taichung 40201, Taiwan.,Department of Pediatrics, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Ko-Hsiu Lu
- School of Medicine, Chung Shan Medical University, Taichung 40201, Taiwan.,Department of Orthopedics, Chung Shan Medical University Hospital, Taichung 40201, Taiwan
| | - Shun-Fa Yang
- Institute of Medicine, Chung Shan Medical University, Taichung 40201, Taiwan.,Department of Medical Research, Chung Shan Medical University Hospital, Taichung 40201, Taiwan
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22
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Gao Z, Gao W, Zeng SL, Li P, Liu EH. Chemical structures, bioactivities and molecular mechanisms of citrus polymethoxyflavones. J Funct Foods 2018. [DOI: 10.1016/j.jff.2017.11.036] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
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23
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Antiangiogenic Effect of Flavonoids and Chalcones: An Update. Int J Mol Sci 2017; 19:ijms19010027. [PMID: 29271940 PMCID: PMC5795978 DOI: 10.3390/ijms19010027] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 12/11/2017] [Accepted: 12/19/2017] [Indexed: 12/18/2022] Open
Abstract
Chalcones are precursors of flavonoid biosynthesis in plants. Both flavonoids and chalcones are intensively investigated because of a large spectrum of their biological activities. Among others, anticancer and antiangiogenic effects account for the research interest of these substances. Because of an essential role in cancer growth and metastasis, angiogenesis is considered to be a promising target for cancer treatment. Currently used antiangiogenic agents are either synthetic compounds or monoclonal antibodies. However, there are some limitations of their use including toxicity and high price, making the search for new antiangiogenic compounds very attractive. Nowadays it is well known that several natural compounds may modulate basic steps in angiogenesis. A lot of studies, also from our lab, showed that phytochemicals, including polyphenols, are potent modulators of angiogenesis. This review paper is focused on the antiangiogenic effect of flavonoids and chalcones and discusses possible underlying cellular and molecular mechanisms.
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Wang Y, Qian J, Cao J, Wang D, Liu C, Yang R, Li X, Sun C. Antioxidant Capacity, Anticancer Ability and Flavonoids Composition of 35 Citrus (Citrus reticulata Blanco) Varieties. Molecules 2017; 22:molecules22071114. [PMID: 28678176 PMCID: PMC6152254 DOI: 10.3390/molecules22071114] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Revised: 07/03/2017] [Accepted: 07/03/2017] [Indexed: 12/16/2022] Open
Abstract
Citrus (Citrus reticulate Blanco) is one of the most commonly consumed and widely distributed fruit in the world, which is possessing extensive bioactivities. Present study aimed to fully understand the flavonoids compositions, antioxidant capacities and in vitro anticancer abilities of different citrus resources. Citrus fruits of 35 varieties belonging to 5 types (pummelos, oranges, tangerines, mandarins and hybrids) were collected. Combining li quid chromatography combined with electrospray ionization mass spectrometry (LC-ESI-MS/MS) and ultra-performance liquid chromatography combined with diode array detector (UPLC-DAD), a total of 39 flavonoid compounds were identified, including 4 flavones, 9 flavanones and 26 polymethoxylated flavonoids (PMFs). Each citrus fruit was examined and compared by 4 parts, flavedo, albedo, segment membrane and juice sacs. The juice sacs had the lowest total phenolics, following by the segment membrane. Four antioxidant traits including 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity, ferric reducing antioxidant power (FRAP), oxygen radical absorbance capacity (ORAC) and cupric reducing antioxidant capacity (CUPRAC) were applied for the antioxidant capacities evaluation. Three gastric cancer cell lines, SGC-7901, BGC-823 and AGS were applied for the cytotoxicity evaluation. According to the results of correlation analysis, phenolics compounds might be the main contributor to the antioxidant activity of citrus extracts, while PMFs existing only in the flavedo might be closely related to the gastric cancer cell line cytotoxicity of citrus extracts. The results of present study might provide a theoretical guidance for the utilization of citrus resources.
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Affiliation(s)
- Yue Wang
- Laboratory of Fruit Quality Biology/The State Agriculture Ministry Laboratory of Horticultural Plant Growth, Development and Quality Improvement, Zhejiang University, Zijingang Campus, Hangzhou 310058, China; (Y.W.); (J.Q.); (J.C.); (X.L.)
| | - Jing Qian
- Laboratory of Fruit Quality Biology/The State Agriculture Ministry Laboratory of Horticultural Plant Growth, Development and Quality Improvement, Zhejiang University, Zijingang Campus, Hangzhou 310058, China; (Y.W.); (J.Q.); (J.C.); (X.L.)
| | - Jinping Cao
- Laboratory of Fruit Quality Biology/The State Agriculture Ministry Laboratory of Horticultural Plant Growth, Development and Quality Improvement, Zhejiang University, Zijingang Campus, Hangzhou 310058, China; (Y.W.); (J.Q.); (J.C.); (X.L.)
- Horticulture Research Institute, Taizhou Academy of Agricultural Sciences, Linhai 317000, China
| | - Dengliang Wang
- Citrus Research Institute, Quzhou Academy of Agricultural Sciences, Quzhou 324000, China; (D.W.); qzlcr @aliyun.com (C.L.)
| | - Chunrong Liu
- Citrus Research Institute, Quzhou Academy of Agricultural Sciences, Quzhou 324000, China; (D.W.); qzlcr @aliyun.com (C.L.)
| | - Rongxi Yang
- Forestry Special Production Technology Promotion Center, Xiangshan Bureau of Agriculture and Forestry, Ningbo 315700, China;
| | - Xian Li
- Laboratory of Fruit Quality Biology/The State Agriculture Ministry Laboratory of Horticultural Plant Growth, Development and Quality Improvement, Zhejiang University, Zijingang Campus, Hangzhou 310058, China; (Y.W.); (J.Q.); (J.C.); (X.L.)
| | - Chongde Sun
- Laboratory of Fruit Quality Biology/The State Agriculture Ministry Laboratory of Horticultural Plant Growth, Development and Quality Improvement, Zhejiang University, Zijingang Campus, Hangzhou 310058, China; (Y.W.); (J.Q.); (J.C.); (X.L.)
- Correspondence: ; Tel.: +86-571-8898-2229
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25
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Sp N, Kang DY, Joung YH, Park JH, Kim WS, Lee HK, Song KD, Park YM, Yang YM. Nobiletin Inhibits Angiogenesis by Regulating Src/FAK/STAT3-Mediated Signaling through PXN in ER⁺ Breast Cancer Cells. Int J Mol Sci 2017; 18:ijms18050935. [PMID: 28468300 PMCID: PMC5454848 DOI: 10.3390/ijms18050935] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Revised: 04/25/2017] [Accepted: 04/26/2017] [Indexed: 02/08/2023] Open
Abstract
Tumor angiogenesis is one of the major hallmarks of tumor progression. Nobiletin is a natural flavonoid isolated from citrus peel that has anti-angiogenic activity. Steroid receptor coactivator (Src) is an intracellular tyrosine kinase so that focal adhesion kinase (FAK) binds to Src to play a role in tumor angiogenesis. Signal transducer and activator of transcription 3 (STAT3) is a marker for tumor angiogenesis which interacts with Src. Paxillin (PXN) acts as a downstream target for both FAK and STAT3. The main goal of this study was to assess inhibition of tumor angiogenesis by nobiletin in estrogen receptor positive (ER+) breast cancer cells via Src, FAK, and STAT3-mediated signaling through PXN. Treatment with nobiletin in MCF-7 and T47D breast cancer cells inhibited angiogenesis markers, based on western blotting and RT-PCR. Validation of in vitro angiogenesis in the human umbilical vein endothelial cells (HUVEC) endothelial cell line proved the anti-angiogenic activity of nobiletin. Electrophoretic mobility shift assay and the ChIP assay showed that nobiletin inhibits STAT3/DNA binding activity and STAT3 binding to a novel binding site of the PXN gene promoter. We also investigated the migration and invasive ability of nobiletin in ER+ cells. Nobiletin inhibited tumor angiogenesis by regulating Src, FAK, and STAT3 signaling through PXN in ER+ breast cancer cells.
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Affiliation(s)
- Nipin Sp
- Department of Pathology, School of Medicine, Institute of Biomedical Science and Technology, Konkuk University, Seoul 05029, Korea.
| | - Dong Young Kang
- Department of Pathology, School of Medicine, Institute of Biomedical Science and Technology, Konkuk University, Seoul 05029, Korea.
| | - Youn Hee Joung
- Department of Pathology, School of Medicine, Institute of Biomedical Science and Technology, Konkuk University, Seoul 05029, Korea.
| | - Jong Hwan Park
- Department of Pathology, School of Medicine, Institute of Biomedical Science and Technology, Konkuk University, Seoul 05029, Korea.
| | - Wan Seop Kim
- Department of Pathology, School of Medicine, Institute of Biomedical Science and Technology, Konkuk University, Seoul 05029, Korea.
| | - Hak Kyo Lee
- Department of Animal Biotechnology, Chonbuk National University, Jeonju 54896, Korea.
| | - Ki-Duk Song
- Department of Animal Biotechnology, Chonbuk National University, Jeonju 54896, Korea.
| | - Yeong-Min Park
- Department of Immunology, School of Medicine, Konkuk University, Chungju 27478, Korea.
| | - Young Mok Yang
- Department of Pathology, School of Medicine, Institute of Biomedical Science and Technology, Konkuk University, Seoul 05029, Korea.
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Zhang H, Zheng J, Liu A, Xiao H, He L. Label-free Imaging and Characterization of Cancer Cell Responses to Polymethoxyflavones Using Raman Microscopy. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:9708-9713. [PMID: 27977189 DOI: 10.1021/acs.jafc.6b03899] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We determined the cellular responses of human colon cancer HT29 and HCT116 cells to the treatments of nobiletin (NBT) and 5-demethylnobiletin (5DN) using Raman microscopy. Evaluation at both single cell and cell population levels revealed found that NBT induced more changes in the peak intensity of nucleic acid than 5DN, whereas 5DN induced more changes in the peak intensity of localized lipid than NBT. This result indicates the different modes of inhibitory action of these two PMFs against colon cancer cells. Between the two colon cancer cells tested, HCT116 cells were more sensitive to both PMFs than HT29 cells. The Raman data were generally in a good agreement with the flow cytometry data. Our results demonstrate that Raman microscopy is able to provide macromolecular information on cellular responses to anticancer treatments.
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Affiliation(s)
- Hua Zhang
- Department of Food Science, University of Massachusetts , Amherst, Massachusetts 01003, United States
| | - Jinkai Zheng
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences , Beijing 100193, People's Republic of China
| | - Anna Liu
- Department of Mathematics and Statistics, University of Massachusetts , Amherst, Massachusetts 01003, United States
| | - Hang Xiao
- Department of Food Science, University of Massachusetts , Amherst, Massachusetts 01003, United States
| | - Lili He
- Department of Food Science, University of Massachusetts , Amherst, Massachusetts 01003, United States
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Yang W, Li S, Liao L, Zheng X, Li J, Zheng Y, Zhang X, Zhu D. Nobiletin Relaxes Isolated Mesenteric Arteries by Activating the Endothelial Ca 2+-eNOS Pathway in Rats. J Vasc Res 2016; 53:330-339. [DOI: 10.1159/000452415] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Accepted: 10/08/2016] [Indexed: 11/19/2022] Open
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The Multifunctional Effects of Nobiletin and Its Metabolites In Vivo and In Vitro. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2016; 2016:2918796. [PMID: 27761146 PMCID: PMC5059563 DOI: 10.1155/2016/2918796] [Citation(s) in RCA: 82] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/17/2016] [Revised: 08/27/2016] [Accepted: 08/29/2016] [Indexed: 12/31/2022]
Abstract
Nobiletin (NOB) chemically known as 5,6,7,8,3′,4′-hexamethoxyflavone is a dietary polymethoxylated flavonoid found in Citrus fruits. Recent evidences show that NOB is a multifunctional pharmaceutical agent. The various pharmacological activities of NOB include neuroprotection, cardiovascular protection, antimetabolic disorder, anticancer, anti-inflammation, and antioxidation. These events may be underpinned by modulation of signaling cascades, including PKA/ERK/MEK/CREB, NF-κB, MAPK, Ca2+/CaMKII, PI3K/Akt1/2, HIF-1α, and TGFβ signaling pathways. The metabolites may exhibit stronger beneficial effects than NOB on diseases pathogenesis. The biological activities of NOB have been clarified on many systems. This review aims to discuss the pharmacological effects of NOB with specific mechanisms of actions. NOB may become a promising candidate for potential drug development. However, further investigations of NOB on specific intracellular targets and clinical trials are still needed, especially for in vivo medical applications.
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Bugel SM, Bonventre JA, Tanguay RL. Comparative Developmental Toxicity of Flavonoids Using an Integrative Zebrafish System. Toxicol Sci 2016; 154:55-68. [PMID: 27492224 DOI: 10.1093/toxsci/kfw139] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Flavonoids are a large, structurally diverse class of bioactive naturally occurring chemicals commonly detected in breast milk, soy based infant formulas, amniotic fluid, and fetal cord blood. The potential for pervasive early life stage exposures raises concerns for perturbation of embryogenesis, though developmental toxicity and bioactivity information is limited for many flavonoids. Therefore, we evaluated a suite of 24 flavonoid and flavonoid-like chemicals using a zebrafish embryo-larval toxicity bioassay-an alternative model for investigating developmental toxicity of environmentally relevant chemicals. Embryos were exposed to 1-50 µM of each chemical from 6 to 120 h postfertilization (hpf), and assessed for 26 adverse developmental endpoints at 24, 72, and 120 hpf. Behavioral changes were evaluated in morphologically normal animals at 24 and 72 hpf, at 120 hpf using a larval photomotor response (LPR) assay. Gene expression was comparatively evaluated for all compounds for effects on biomarker transcripts indicative of AHR (cyp1a) and ER (cyp19a1b, esr1, lhb, vtg) pathway bioactivity. Overall, 15 of 24 flavonoids elicited adverse effects on one or more of the developmental or behavioral endpoints. Hierarchical clustering and principle component analyses compared toxicity profiles and identified 3 distinct groups of bioactive flavonoids. Despite robust induction of multiple estrogen-responsive biomarkers, co-exposure with ER and GPER antagonists did not ameliorate toxicity, suggesting ER-independence and alternative modes of action. Taken together, these studies demonstrate that development is sensitive to perturbation by bioactive flavonoids in zebrafish that are not related to traditional estrogen receptor mode of action pathways. This integrative zebrafish platform provides a useful framework for evaluating flavonoid developmental toxicity and hazard prioritization.
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Affiliation(s)
- Sean M Bugel
- *Department of Environmental and Molecular Toxicology, Environmental Health Sciences Center, and the Sinnhuber Aquatic Research Laboratory
| | - Josephine A Bonventre
- Department of Biochemistry and Biophysics, Oregon State University, Corvallis, Oregon 97331
| | - Robert L Tanguay
- *Department of Environmental and Molecular Toxicology, Environmental Health Sciences Center, and the Sinnhuber Aquatic Research Laboratory
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Caro M, Iturria I, Martinez-Santos M, Pardo MA, Rainieri S, Tueros I, Navarro V. Zebrafish dives into food research: effectiveness assessment of bioactive compounds. Food Funct 2016; 7:2615-23. [DOI: 10.1039/c6fo00046k] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Zebrafish ease of use and characteristics reveal it to be an interesting and underused model in food and nutrition research.
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Affiliation(s)
- M. Caro
- AZTI, Food Research, Astondo Bidea 609
- 48160 Derio
- Spain
| | - I. Iturria
- AZTI, Food Research, Astondo Bidea 609
- 48160 Derio
- Spain
| | | | - M. A. Pardo
- AZTI, Food Research, Astondo Bidea 609
- 48160 Derio
- Spain
| | - S. Rainieri
- AZTI, Food Research, Astondo Bidea 609
- 48160 Derio
- Spain
| | - I. Tueros
- AZTI, Food Research, Astondo Bidea 609
- 48160 Derio
- Spain
| | - V. Navarro
- AZTI, Food Research, Astondo Bidea 609
- 48160 Derio
- Spain
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García BF, Torres A, Macías FA. Synergy and Other Interactions between Polymethoxyflavones from Citrus Byproducts. Molecules 2015; 20:20079-106. [PMID: 26561798 PMCID: PMC6331868 DOI: 10.3390/molecules201119677] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Revised: 10/28/2015] [Accepted: 10/29/2015] [Indexed: 11/26/2022] Open
Abstract
The citrus by-products released from citrus processing plants may contain high levels of potentially bioactive compounds such as flavonoids, which are a widely distributed group of polyphenolic compounds with health-related properties based on their antioxidant activity. In the study reported here, the potential bioactivities and antioxidant activities of extracts, fractions and compounds from citrus by-products were evaluated along with the chemical interactions of binary mixtures of compounds and complex mixtures. The bioactivities and interactions were evaluated in wheat coleoptile bioassays and the antioxidant activity was evaluated by the al DPPH (2,2-diphenyl-1-picrylhdrazyl radical) radical scavenging assay. The extracts, fractions and most of the isolated compounds (mainly polymethoxyflavones) showed high activity in the wheat coleoptile bioassay. However, the antioxidant activity was not consistently high, except in the acetone extract fractions. Moreover, a study of the interactions with binary mixtures of polymethoxyflavones showed the occurrence of synergistic effects. The complex mixtures of fractions composed mainly of polymethoxyflavones caused a synergistic effect when it was added to a bioactive compound such as anethole. The results reported here highlight a new application for the wheat coleoptile bioassay as a quick tool to detect potential synergistic effects in compounds or mixtures.
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Affiliation(s)
- Benito F García
- Allelopathy Group, Department of Organic Chemistry, Institute of Biomolecules (INBIO), Campus de Excelencia Internacional (ceiA3), Faculty of Science, University of Cadiz, C/República Saharaui n 7, 11510 Puerto Real, (Cádiz), Spain.
| | - Ascensión Torres
- Allelopathy Group, Department of Organic Chemistry, Institute of Biomolecules (INBIO), Campus de Excelencia Internacional (ceiA3), Faculty of Science, University of Cadiz, C/República Saharaui n 7, 11510 Puerto Real, (Cádiz), Spain.
| | - Francisco A Macías
- Allelopathy Group, Department of Organic Chemistry, Institute of Biomolecules (INBIO), Campus de Excelencia Internacional (ceiA3), Faculty of Science, University of Cadiz, C/República Saharaui n 7, 11510 Puerto Real, (Cádiz), Spain.
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Chen J, Chen AY, Huang H, Ye X, Rollyson WD, Perry HE, Brown KC, Rojanasakul Y, Rankin GO, Dasgupta P, Chen YC. The flavonoid nobiletin inhibits tumor growth and angiogenesis of ovarian cancers via the Akt pathway. Int J Oncol 2015; 46:2629-38. [PMID: 25845666 PMCID: PMC4441297 DOI: 10.3892/ijo.2015.2946] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Accepted: 03/19/2015] [Indexed: 11/24/2022] Open
Abstract
Despite its importance, the death rate of ovarian cancer has remained unchanged over the past five decades, demanding an improvement in prevention and treatment of this malignancy. With no known carcinogens, targeted prevention is currently unavailable, and efforts in early detection of this malignancy by screening biomarkers have failed. The inhibition of angiogenesis, also known as angioprevention, is a promising strategy to limit the growth of solid tumors, including ovarian cancers. Nobiletin, a polymethoxy flavonoid compound isolated from the tiansheng plant, has been shown to inhibit the growth of multiple types of human cancers. However, there are no reports involving the effect on nobiletin on human ovarian cancer. The present report shows that nobiletin potently decreases the viability of ovarian cancer cells in vitro. However, nobiletin does not affect the viability of normal ovarian epithelial cells at <40 μM. The antitumor activity of nobiletin was also observed in athymic mouse models and in chicken chorioallantoic membrane (CAM) models. The anti-neoplastic activity of nobiletin was due to its ability to inhibit angiogenesis. We also studied the molecular mechanisms by which nobiletin suppresses angiogenesis. We observed that nobiletin inhibits secretion of the key angiogenesis mediators, Akt, HIF-1α, NF-κB and vascular epithelial growth factor (VEGF) by ovarian cancer cells. Transient transfection experiments showed that nobiletin inhibits production of HIF-1α by downregulation of Akt. Such decreased levels of HIF-1α were responsible for nobiletin-induced suppression of VEGF. Our data suggest that nobiletin may be a promising anti-angiogenic agent relevant for therapy of ovarian cancers.
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Affiliation(s)
- Jianchu Chen
- College of Biosystems Engineering and Food Science, Fuli Institute of Food Science, Zhejiang University, P.R. China
| | - Allen Y Chen
- Department of Pharmaceutical Science, West Virginia University, Morgantown, WV 26506, USA
| | - Haizhi Huang
- College of Biosystems Engineering and Food Science, Fuli Institute of Food Science, Zhejiang University, P.R. China
| | - Xingqian Ye
- College of Biosystems Engineering and Food Science, Fuli Institute of Food Science, Zhejiang University, P.R. China
| | - William D Rollyson
- Department of Pharmacology, Physiology and Toxicology, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25755, USA
| | - Haley E Perry
- Department of Pharmacology, Physiology and Toxicology, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25755, USA
| | - Kathleen C Brown
- Department of Pharmacology, Physiology and Toxicology, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25755, USA
| | - Yon Rojanasakul
- Department of Pharmaceutical Science, West Virginia University, Morgantown, WV 26506, USA
| | - Gary O Rankin
- Department of Pharmacology, Physiology and Toxicology, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25755, USA
| | - Piyali Dasgupta
- Department of Pharmacology, Physiology and Toxicology, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25755, USA
| | - Yi Charlie Chen
- College of Science, Technology and Mathematics, Alderson Broaddus University, Philippi, WV 26416, USA
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Xiong Y, Chen D, Yu C, Lv B, Peng J, Wang J, Lin Y. Citrus nobiletin ameliorates experimental colitis by reducing inflammation and restoring impaired intestinal barrier function. Mol Nutr Food Res 2015; 59:829-42. [PMID: 25655748 DOI: 10.1002/mnfr.201400614] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2014] [Revised: 11/06/2014] [Accepted: 12/18/2014] [Indexed: 12/19/2022]
Abstract
SCOPE Inflammatory bowel disease is a chronic inflammatory disorder of the gastrointestinal tract. Citrus nobiletin can exert robust anti-inflammatory effects in vivo and in vitro. We evaluated the impact of nobiletin on the excessive inflammatory response and impaired barrier function in a rodent colitis model. METHODS AND RESULTS Colitis was established by infusion with 1 mL 2,4,6-trinitrobenzene sulfonic acid (TNBS) dissolved in ethanol (40% v/v) in rats at a 125 mg/kg dose. Caco-2 cell monolayer exposed to LPSs is used as a culture model for intestinal permeability measurements. Nobiletin decreased rat epithelial proinflammatory cytokines and mediators production. Nobiletin restored impaired barrier function in colitic rats and Caco-2 monolayer. Nobiletin decreased protein expressions of Akt, nuclear factor-kappa B (NF-κB), and myosin light chain kinase (MLCK) isolated from rat intestinal epithelial tissue and Caco-2 cell, respectively. PI3K inhibitor or siRNA targeting of either Akt or NF-κB mitigated the impact of nobiletin on MLCK expression and barrier function in Caco-2 monolayer, respectively. CONCLUSION Nobiletin exerted anti-inflammatory effects in TNBS-induced colitis through the downregulation of inducible nitric oxide synthase (iNOS) and cyclooxygenase 2 (COX-2) expression. Nobiletin restored barrier function, which had been damaged after TNBS administration, through the inhibition of the Akt-NF-κB-MLCK pathway.
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Affiliation(s)
- Yongjian Xiong
- Department of Pharmacology, Dalian Medical University, Dalian, P. R. China
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Basal Flt1 tyrosine kinase activity is a positive regulator of endothelial survival and vascularization during zebrafish embryogenesis. Biochim Biophys Acta Gen Subj 2015; 1850:373-84. [DOI: 10.1016/j.bbagen.2014.10.023] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Revised: 09/23/2014] [Accepted: 10/22/2014] [Indexed: 10/24/2022]
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Mai LH, Chabot GG, Grellier P, Quentin L, Dumontet V, Poulain C, Espindola LS, Michel S, Vo HTB, Deguin B, Grougnet R. Antivascular and anti-parasite activities of natural and hemisynthetic flavonoids from New Caledonian Gardenia species (Rubiaceae). Eur J Med Chem 2015; 93:93-100. [PMID: 25659770 DOI: 10.1016/j.ejmech.2015.01.012] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2014] [Revised: 01/06/2015] [Accepted: 01/07/2015] [Indexed: 10/25/2022]
Abstract
A series of 16 flavonoids were isolated and prepared from bud exudate of Gardenia urvillei and Gardenia oudiepe, endemic to New Caledonia. Most of them are rare polymethoxylated flavones. Some of these compounds showed noticeable activity against Leishmania (Leishmania) amazonensis, Plasmodium falciparum and Trypanosoma brucei gambiense, in addition to tubulin polymerization inhibition at low micromolar concentration. We also provide a full set of NMR data as some of the flavones were incompletely described.
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Affiliation(s)
- Linh H Mai
- Laboratoire de Pharmacognosie, UMR/CNRS 8638, Faculté des Sciences Pharmaceutiques et Biologiques, Université Paris Descartes, Sorbonne Paris Cité, 4, Avenue de l'Observatoire, 75006 Paris, France
| | - Guy G Chabot
- Laboratoire de Pharmacologie Chimique, Génétique et Imagerie U1022 Inserm-UMR8151 CNRS, Faculté des Sciences Pharmaceutiques et Biologiques, Université Paris Descartes, Sorbonne Paris Cité, 4, Avenue de l'Observatoire, 75006 Paris, France
| | - Philippe Grellier
- Muséum National d'Histoire Naturelle, UMR 7245 CNRS, Molécules de Communication et Adaptation des Micro-organismes, 61 rue Buffon, F-75231 Paris Cedex 05, France
| | - Lionel Quentin
- Laboratoire de Pharmacologie Chimique, Génétique et Imagerie U1022 Inserm-UMR8151 CNRS, Faculté des Sciences Pharmaceutiques et Biologiques, Université Paris Descartes, Sorbonne Paris Cité, 4, Avenue de l'Observatoire, 75006 Paris, France
| | - Vincent Dumontet
- Centre de recherche de Gif, Institut de Chimie des Substances Naturelles, UPR2301 CNRS, Avenue de la Terrasse, Gif-sur-Yvette Cedex, France
| | - Cyril Poulain
- Centre de recherche de Gif, Institut de Chimie des Substances Naturelles, UPR2301 CNRS, Avenue de la Terrasse, Gif-sur-Yvette Cedex, France
| | - Laila S Espindola
- Laboratorio de Farmacognosia, Universidade de Brasilia, Campus Universitario Darcy Ribeiro, Asa Norte, 70910-900 Brasilia, DF, Brazil
| | - Sylvie Michel
- Laboratoire de Pharmacognosie, UMR/CNRS 8638, Faculté des Sciences Pharmaceutiques et Biologiques, Université Paris Descartes, Sorbonne Paris Cité, 4, Avenue de l'Observatoire, 75006 Paris, France
| | - Hue T B Vo
- Faculty of Pharmacy, Ho Chi Minh University of Medicine and Pharmacy, 41 Dinh Tien Hoang St., District 1, Ho Chi Minh City, Viet Nam
| | - Brigitte Deguin
- Laboratoire de Pharmacognosie, UMR/CNRS 8638, Faculté des Sciences Pharmaceutiques et Biologiques, Université Paris Descartes, Sorbonne Paris Cité, 4, Avenue de l'Observatoire, 75006 Paris, France
| | - Raphaël Grougnet
- Laboratoire de Pharmacognosie, UMR/CNRS 8638, Faculté des Sciences Pharmaceutiques et Biologiques, Université Paris Descartes, Sorbonne Paris Cité, 4, Avenue de l'Observatoire, 75006 Paris, France.
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Chien SY, Hsieh MJ, Chen CJ, Yang SF, Chen MK. Nobiletin inhibits invasion and migration of human nasopharyngeal carcinoma cell lines by involving ERK1/2 and transcriptional inhibition of MMP-2. Expert Opin Ther Targets 2015; 19:307-20. [PMID: 25563790 DOI: 10.1517/14728222.2014.992875] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE Nasopharyngeal carcinoma (NPC) is known for its high incidence of neck lymph node metastasis, which represents poor prognosis. Nobiletin is a citrus polymethoxyflavonoid that suppresses tumor growth and metastasis, both of which depend on angiogenesis in previous studies. However, the effect of Nobiletin on human NPC cells metastasis has not been clearly clarified. RESEARCH DESIGN AND METHODS In this study, we determine the effects of Nobiletin on the migration and invasion in NPC cells. RESULTS Nobiletin significantly inhibited migration/invasion capacities of HONE-1 and NPC-BM cell lines. The results of gelatin zymography and western blotting revealed that the activities and protein levels of the MMP-2 were inhibited by Nobiletin. Nobiletin also showed that inhibits phosphorylation of ERK1/2. Tests of the real-time PCR and promoter assays evaluated the inhibitory effects of Nobiletin on MMP-2 expression in human NPC cells. Nobiletin inhibits MMP-2 expression, up-regulating tissue inhibitor of metalloproteinase-2 and down-regulation of the transcription factors of NF-κB and activator protein 1 (AP-1) signaling pathways. Finally, an administration of Nobiletin effectively suppressed the tumor formation and metastasis in the NPC xenograft model in vivo. CONCLUSIONS Nobiletin may have potential use as a chemo-preventive agent against nasopharyngeal cancer metastasis.
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Affiliation(s)
- Su-Yu Chien
- Changhua Christian Hospital, Department of Pharmacy , Changhua 500, Taiwan , Republic of China
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Anticancer activities of citrus peel polymethoxyflavones related to angiogenesis and others. BIOMED RESEARCH INTERNATIONAL 2014; 2014:453972. [PMID: 25250322 PMCID: PMC4163462 DOI: 10.1155/2014/453972] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2014] [Accepted: 07/28/2014] [Indexed: 01/16/2023]
Abstract
Citrus is a kind of common fruit and contains multiple beneficial nutrients for human beings. Flavonoids, as a class of plant secondary metabolites, exist in citrus fruits abundantly. Due to their broad range of pharmacological properties, citrus flavonoids have gained increased attention. Accumulative in vitro and in vivo studies indicate protective effects of polymethoxyflavones (PMFs) against the occurrence of cancer. PMFs inhibit carcinogenesis by mechanisms like blocking the metastasis cascade, inhibition of cancer cell mobility in circulatory systems, proapoptosis, and antiangiogenesis. This review systematically summarized anticarcinogenic effect of citrus flavonoids in cancer therapy, together with the underlying important molecular mechanisms, in purpose of further exploring more effective use of citrus peel flavonoids.
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He MF, Gao XP, Li SC, He ZH, Chen N, Wang YB, She JX. Anti-angiogenic effect of auranofin on HUVECs in vitro and zebrafish in vivo. Eur J Pharmacol 2014; 740:240-7. [PMID: 25064343 DOI: 10.1016/j.ejphar.2014.07.034] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2014] [Revised: 06/24/2014] [Accepted: 07/07/2014] [Indexed: 11/26/2022]
Abstract
Angiogenesis plays an essential role in many physiological and pathological processes. Auranofin (Ridaura®), an important gold(I) complex, is used to treat rheumatoid arthritis. However, the effect of auranofin on blood vessel formation is still unclear. In this study, we investigated the anti-angiogenic activity of auranofin on human umbilical vein endothelial cells (HUVEC) in vitro and zebrafish in vivo. Our results showed that auranofin could inhibit the proliferation, migration and tube formation of HUVECs and disrupted the formation of intersegmental vessels and the subintestinal vessels of zebrafish embryos. Auranofin inhibited the phosphorylation of vascular endothelial growth factor 2 (p-VEGFR2) on HUVECs and suppressed the vascular endothelial growth factor (VEGF) signaling pathway (vegfa, flt-1, kdr) but not thioredoxin reductase (TrxR) on zebrafish. Our study suggested that auranofin might serve as a potential anti-angiogenic compound candidate.
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Affiliation(s)
- Ming-Fang He
- Institute of Translational Medicine, School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 210009, Jiangsu Province, China
| | - Xiao-Ping Gao
- Institute of Translational Medicine, School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 210009, Jiangsu Province, China
| | - Shu-Chun Li
- Institute of Translational Medicine, School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 210009, Jiangsu Province, China
| | - Zhi-Heng He
- The Hebrew University of Jerusalem, Hadassah University Hospital, Jerusalem 91120, Israel
| | - Ning Chen
- Institute of Translational Medicine, School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 210009, Jiangsu Province, China
| | - Yu-Bin Wang
- Institute of Translational Medicine, School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 210009, Jiangsu Province, China
| | - Jin-Xiong She
- Institute of Translational Medicine, School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 210009, Jiangsu Province, China; Center for Biotechnology and Genomic Medicine, Medical College of Georgia, Georgia Regents University, Augusta, GA 30912, USA.
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Lu XL, Liu JX, Wu Q, Long SM, Zheng MY, Yao XL, Ren H, Wang YG, Su WW, Fai Cheung RT, Zeng JS, Su H, Pei Z. Protective effects of puerarin against Aß40-induced vascular dysfunction in zebrafish and human endothelial cells. Eur J Pharmacol 2014; 732:76-85. [DOI: 10.1016/j.ejphar.2014.03.030] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2013] [Revised: 03/18/2014] [Accepted: 03/24/2014] [Indexed: 11/24/2022]
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Marine compound catunaregin inhibits angiogenesis through the modulation of phosphorylation of akt and eNOS in vivo and in vitro. Mar Drugs 2014; 12:2790-801. [PMID: 24824025 PMCID: PMC4052316 DOI: 10.3390/md12052790] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2014] [Revised: 04/09/2014] [Accepted: 04/14/2014] [Indexed: 11/16/2022] Open
Abstract
Angiogenesis is the formation of blood vessels from pre-existing vasculature. Excessive or uncontrolled angiogenesis is a major contributor to many pathological conditions whereas inhibition of aberrant angiogenesis is beneficial to patients with pathological angiogenesis. Catunaregin is a core of novel marine compound isolated from mangrove associate. The potential anti-angiogenesis of catunaregin was investigated in human umbilical vein endothelial cells (HUVECs) and zebrafish. HUVECs were treated with different concentrations of catunaregin in the presence or absence of VEGF. The angiogenic phenotypes including cell invasion cell migration and tube formation were evaluated following catunaregin treatment in HUVECs. The possible involvement of AKT, eNOS and ERK1/2 in catunaregin-induced anti-angiogenesis was explored using Western blotting. The anti-angiogenesis of catunaregin was further tested in the zebrafish embryo neovascularization and caudal fin regeneration assays. We found that catunaregin dose-dependently inhibited angiogenesis in both HUVECs and zebrafish embryo neovascularization and zebrafish caudal fin regeneration assays. In addition, catunaregin significantly decreased the phosphorylation of Akt and eNOS, but not the phosphorylation of ERK1/2. The present work demonstrates that catunaregin exerts the anti-angiogenic activity at least in part through the regulation of the Akt and eNOS signaling pathways.
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Abstract
INTRODUCTION Off-target effects represent one of the major concerns in the development of new pharmaceuticals, requiring large-scale animal toxicity testing. Faster, cheaper and more reliable assays based on zebrafish embryos (ZE) are being developed as major tools for assessing toxicity of chemicals during the drug-discovery process. AREAS COVERED This paper reviews techniques aimed to the analysis of in vivo sublethal toxic effects of drugs on major physiological functions, including the cardiovascular, nervous, neuromuscular, gastrointestinal and thyroid systems among others. Particular emphasis is placed on high-throughput screening techniques (HTS), including robotics, imaging technologies and image-analysis software. EXPERT OPINION The analysis of off-target effects of candidate drugs requires systemic analyses, as they often involve the complete organism rather than specific, tissue- or cell-specific targets. The unique physical and physiological characteristics of ZE make this system an essential tool for drug discovery and toxicity assessment. Different HTS methodologies applicable to ZE allow the screening of large numbers of different chemicals for many diverse and relevant toxic endpoints.
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Affiliation(s)
- Demetrio Raldúa
- IDAEA-CSIC, Environmental Chemistry , Jordi Girona 18, 08034 Barcelona , Spain +34 93400 6157 ; +34 93204 5904 ;
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Pu LP, Chen HP, Cao MA, Zhang XL, Gao QX, Yuan CS, Wang CM. The antiangiogenic activity of Kushecarpin D, a novel flavonoid isolated from Sophora flavescens Ait. Life Sci 2013; 93:791-7. [PMID: 24113074 DOI: 10.1016/j.lfs.2013.09.025] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2013] [Revised: 09/18/2013] [Accepted: 09/25/2013] [Indexed: 01/23/2023]
Abstract
AIMS Kushecarpin D (KD) is a novel flavonoid isolated from the traditional Chinese herbal medicine Kushen (the dried root of Sophora flavescens Ait). As part of our continuous effort to explore Chinese traditional medicinal herbs and to identify novel natural anticancer products, the antiangiogenic properties of KD were examined in vitro using a human umbilical vein endothelial cell line (ECV304). MAIN METHODS The SRB and Trypan Blue exclusion assays were used to evaluate the effect of KD on cell proliferation. The antiangiogenic activities of KD were evaluated through studies of cell migration, cell adhesion, and tube formation. DCFH-DA and DHE fluorescent assays were used to detect the reactive oxygen species (ROS) levels. Catalase activity was detected using the colorimetric ammonium molybdate method. Cell cycle and apoptosis were measured using flow cytometry and the Hoechst 33258 staining assay. KEY FINDINGS The results indicated that KD showed antiangiogenic activity via inhibitory effects on cell proliferation, cell migration, cell adhesion, and tube formation. ROS levels were down-regulated and catalase activity was up-regulated after treatment with KD. The cell cycle was arrested at the G2/M phase, while no apoptosis was observed using the Hoechst 33258 staining assay or following the flow cytometric analysis of the sub-G1 proportion. SIGNIFICANCE The antiangiogenic properties of KD, in combination with its anti-proliferative effect and ability to induce cell cycle arrest without inducing apoptosis, make it a good candidate for development as antitumor agent. However, further studies are essential to elucidate its mechanism of action.
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Affiliation(s)
- Li-Ping Pu
- School of Life Sciences, Lanzhou University, Lanzhou 730000, China
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Duan J, Yu Y, Shi H, Tian L, Guo C, Huang P, Zhou X, Peng S, Sun Z. Toxic effects of silica nanoparticles on zebrafish embryos and larvae. PLoS One 2013; 8:e74606. [PMID: 24058598 PMCID: PMC3776836 DOI: 10.1371/journal.pone.0074606] [Citation(s) in RCA: 123] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2013] [Accepted: 08/05/2013] [Indexed: 11/18/2022] Open
Abstract
Silica nanoparticles (SiNPs) have been widely used in biomedical and biotechnological applications. Environmental exposure to nanomaterials is inevitable as they become part of our daily life. Therefore, it is necessary to investigate the possible toxic effects of SiNPs exposure. In this study, zebrafish embryos were treated with SiNPs (25, 50, 100, 200 µg/mL) during 4-96 hours post fertilization (hpf). Mortality, hatching rate, malformation and whole-embryo cellular death were detected. We also measured the larval behavior to analyze whether SiNPs had adverse effects on larvae locomotor activity. The results showed that as the exposure dosages increasing, the hatching rate of zebrafish embryos was decreased while the mortality and cell death were increased. Exposure to SiNPs caused embryonic malformations, including pericardial edema, yolk sac edema, tail and head malformation. The larval behavior testing showed that the total swimming distance was decreased in a dose-dependent manner. The lower dose (25 and 50 µg/mL SiNPs) produced substantial hyperactivity while the higher doses (100 and 200 µg/mL SiNPs) elicited remarkably hypoactivity in dark periods. In summary, our data indicated that SiNPs caused embryonic developmental toxicity, resulted in persistent effects on larval behavior.
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Affiliation(s)
- Junchao Duan
- School of Public Health, Capital Medical University, Beijing, P.R. China
- Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, P.R. China
| | - Yongbo Yu
- School of Public Health, Capital Medical University, Beijing, P.R. China
- Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, P.R. China
| | - Huiqin Shi
- Institute of Disease Control and Prevention, Academy of Military Medical Sciences, Beijing, P.R. China
| | - Linwei Tian
- School of Public Health and Primary Care, Chinese University of Hong Kong, Hong Kong, P.R. China
| | - Caixia Guo
- School of Public Health, Capital Medical University, Beijing, P.R. China
- Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, P.R. China
| | - Peili Huang
- School of Public Health, Capital Medical University, Beijing, P.R. China
- Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, P.R. China
| | - Xianqing Zhou
- School of Public Health, Capital Medical University, Beijing, P.R. China
- Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, P.R. China
| | - Shuangqing Peng
- Institute of Disease Control and Prevention, Academy of Military Medical Sciences, Beijing, P.R. China
- * E-mail: (SQP); (ZWS)
| | - Zhiwei Sun
- School of Public Health, Capital Medical University, Beijing, P.R. China
- Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, P.R. China
- * E-mail: (SQP); (ZWS)
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Li T, Yan Z, Zhou C, Sun J, Jiang C, Yang X. Simultaneous quantification of paeoniflorin, nobiletin, tangeretin, liquiritigenin, isoliquiritigenin, liquiritin and formononetin from Si-Ni-San extract in rat plasma and tissues by liquid chromatography-tandem mass spectrometry. Biomed Chromatogr 2013; 27:1041-53. [PMID: 23576027 DOI: 10.1002/bmc.2904] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2012] [Revised: 12/23/2012] [Accepted: 01/25/2013] [Indexed: 11/12/2022]
Abstract
In this study, a sensitive and reliable liquid chromatography-tandem mass spectrometry (LC-MS/MS) method was developed and validated for the determination of seven bioactive components including paeoniflorin, nobiletin, tangeretin, liquiritigenin, isoliquiritigenin, liquiritin and formononetin in rat plasma and tissues after oral administration of Si-Ni-San extract using astragaloside IV as internal standard (IS). The plasma and tissue samples were extracted by solid-phase extraction. Chromatographic separation was accomplished on a C18 column with a multiple-step gradient elution. The quantification was obtained by scanning with multiple reaction monitoring via an electrospray ionization source that was operated by switching between the positive and negative modes in two MS/MS scan segments. Full validation of the assay was implemented. In conclusion, this method demonstrated good linearity and specificity. The lower limits of quantification for the analytes were <7.5 ng/mL. Intra- and inter-day precisions (RSD) were <12.5% and accuracy (RE) ranged from -10.2 to 7.3%. The average recoveries of the analytes from rat plasma and tissues were >65.2% and 58.6%, respectively. The validated method was further applied to the determination of actual rat plasma and tissues after oral administration of Si-Ni-San extract. The results provided a meaningful basis for the clinical application of this prescription.
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Affiliation(s)
- Tianxue Li
- Laboratory of Pharmaceutics, Jiangsu Key laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, 210023, People's Republic of China
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Lam IK, Alex D, Wang YH, Liu P, Liu AL, Du GH, Lee SMY. In vitro and in vivo structure and activity relationship analysis of polymethoxylated flavonoids: identifying sinensetin as a novel antiangiogenesis agent. Mol Nutr Food Res 2012; 56:945-56. [PMID: 22707269 DOI: 10.1002/mnfr.201100680] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
SCOPE Polymethoxylated flavonoids are present in citrus fruit in a range of chemical structures and abundance. These compounds have potential for anticarcinogenesis, antitumor, and cardiovascular protective activity, but the effect on angiogenesis has not been well studied. METHODS AND RESULTS Human umbilical vein endothelial cells (HUVECs) in vitro and zebrafish (Danio rerio) in vivo models were used to screen and identify the antiangiogenesis activity of seven polymethoxylated flavonoids; namely, hesperetin, naringin, neohesperidin, nobiletin, scutellarein, scutellarein tetramethylether, and sinensetin. Five, excluding naringin and neohesperidin, showed different degrees of potency of antiangiogenesis activity. Sinensetin, which had the most potent antiangiogenesis activity and the lowest toxicity, inhibited angiogenesis by inducing cell cycle arrest in the G0/G1 phase in HUVEC culture and downregulating the mRNA expressions of angiogenesis genes flt1, kdrl, and hras in zebrafish. CONCLUSION The in vivo structure-activity relationship (SAR) analysis indicated that a flavonoid with a methoxylated group at the C3' position offers a stronger antiangiogenesis activity, whereas the absence of a methoxylated group at the C8 position offers lower lethal toxicity in addition to enhancing the antiangiogenesis activity. This study provides new insight into how modification of the chemical structure of polymethoxylated flavonoids affects this newly identified antiangiogenesis activity.
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Affiliation(s)
- In Kei Lam
- Institute of Chinese Medical Sciences, University of Macau, Avenue Padre Tomás Pereira S.J., Taipa, Macao SAR, PR China
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From omics to drug metabolism and high content screen of natural product in zebrafish: a new model for discovery of neuroactive compound. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2012; 2012:605303. [PMID: 22919414 PMCID: PMC3420231 DOI: 10.1155/2012/605303] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/03/2012] [Accepted: 04/16/2012] [Indexed: 11/17/2022]
Abstract
The zebrafish (Danio rerio) has recently become a common model in the fields of genetics, environmental science, toxicology, and especially drug screening. Zebrafish has emerged as a biomedically relevant model for in vivo high content drug screening and the simultaneous determination of multiple efficacy parameters, including behaviour, selectivity, and toxicity in the content of the whole organism. A zebrafish behavioural assay has been demonstrated as a novel, rapid, and high-throughput approach to the discovery of neuroactive, psychoactive, and memory-modulating compounds. Recent studies found a functional similarity of drug metabolism systems in zebrafish and mammals, providing a clue with why some compounds are active in zebrafish in vivo but not in vitro, as well as providing grounds for the rationales supporting the use of a zebrafish screen to identify prodrugs. Here, we discuss the advantages of the zebrafish model for evaluating drug metabolism and the mode of pharmacological action with the emerging omics approaches. Why this model is suitable for identifying lead compounds from natural products for therapy of disorders with multifactorial etiopathogenesis and imbalance of angiogenesis, such as Parkinson's disease, epilepsy, cardiotoxicity, cerebral hemorrhage, dyslipidemia, and hyperlipidemia, is addressed.
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Marine cyclotripeptide X-13 promotes angiogenesis in zebrafish and human endothelial cells via PI3K/Akt/eNOS signaling pathways. Mar Drugs 2012; 10:1307-1320. [PMID: 22822374 PMCID: PMC3397441 DOI: 10.3390/md10061307] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2012] [Revised: 05/08/2012] [Accepted: 05/29/2012] [Indexed: 11/17/2022] Open
Abstract
Cyclotripeptide X-13 is a core of novel marine compound xyloallenoide A isolated from mangrove fungus Xylaria sp. (no. 2508). We found that X-13 dose-dependently induced angiogenesis in zebrafish embryos and in human endothelial cells, which was accompanied by increased phosphorylation of eNOS and Akt and NO release. Inhibition of PI3K/Akt/eNOS by LY294002 or L-NAME suppressed X-13-induced angiogenesis. The present work demonstrates that X-13 promotes angiogenesis via PI3K/Akt/eNOS pathways.
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