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Nath LR, Kumar SN, Das AA, Nambisan B, Shabna A, Mohandas C, Anto RJ. In Vitro Evaluation of the Antioxidant, 3,5-Dihydroxy-4-ethyl-trans-stilbene (DETS) Isolated from Bacillus cereus as a Potent Candidate against Malignant Melanoma. Front Microbiol 2016; 7:452. [PMID: 27148169 PMCID: PMC4830835 DOI: 10.3389/fmicb.2016.00452] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Accepted: 03/21/2016] [Indexed: 02/05/2023] Open
Abstract
3,5-dihydroxy Q1 -4-ethyl-trans-stilbene (DETS) is a natural stilbene, which was first identified as bioactive bacterial secondary metabolite isolated from Bacillus cereus associated with a rhabditid entomopathogenic nematode. The present study was intended to investigate the antioxidant and anticancer activity of this compound in vitro. Antioxidant activity was investigated by assaying DPPH free radical scavenging, superoxide radical-(O2..) scavenging, hydroxyl radical scavenging and metal chelating activity, which proved that the compound is a powerful antioxidant. The metal chelating activity of DETS was higher than butylated hydroxyanisol (BHA) and gallic acid, two well-known antioxidants. As the molecule exhibited strong antioxidant potential, it was further evaluated for cytotoxic activity toward five cancer cells of various origins. Since the compound has a strong structural similarity with resveratrol (trans- 3,4,5-trihydroxystilbene), a well-studied chemopreventive polyphenolic antioxidant, its anticancer activity was compared with that of resveratrol. Among the five cancer cells studied, the compound showed maximum cytotoxicity toward the human melanoma cell line, [A375, IC50: 24.01 μM] followed by cervical [HeLa-46.17 μM], colon [SW480- 47.28 μM], liver [HepG2- 69.56 μM] and breast [MCF-7- 84.31 μM] cancer cells. A375 was much more sensitive to DETS compared to the non-melanoma cell line, A431, in which the IC50 of the compound was more than double (49.60 μM). In the present study, the anticancer activity of DETS against melanoma was confirmed by various apoptosis assays. We also observed that DETS, like resveratrol, down-regulates the expression status of major molecules contributing to melanoma progression, such as BRAF, β-catenin and Brn-2, all of which converge in MITF-M, the master regulator of melanoma signaling. The regulatory role of MITF-M in DETS-induced cytotoxicity in melanoma cells was confirmed by comparing the cytotoxicity of DETS in A375 cells (IC50-24.01 μM), with that in SK-MEL-2 (IC50-67.6 μM), another melanoma cells which highly over-express MITF-M. The compound arrests the cells at S-G2 transition state of the cell cycle, as resveratrol. Our results indicate that DETS is a powerful antioxidant, having anticancer efficacy comparable with that of resveratrol, and is a potential candidate to be explored by in vivo studies and in-depth mechanistic evaluation. To our knowledge, this is the first report on the antioxidant and anticancer properties of DETS.
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Affiliation(s)
- Lekshmi R. Nath
- Division of Cancer Research, Rajiv Gandhi Centre for BiotechnologyThiruvananthapuram, India
| | - S. N. Kumar
- Agroprocessing and Natural Products Division, Council of Scientific and Industrial Research – National Institute for Interdisciplinary Science and TechnologyThiruvananthapuram, India
| | - Arya A. Das
- Computational Modeling and Simulation Group, Council of Scientific and Industrial Research – National Institute for Interdisciplinary Science and TechnologyThiruvananthapuram, India
| | - Bala Nambisan
- Division of Crop Protection/Division of Crop Utilization, Central Tuber Crops Research InstituteThiruvananthapuram, India
| | - A. Shabna
- Division of Cancer Research, Rajiv Gandhi Centre for BiotechnologyThiruvananthapuram, India
| | - Chellapan Mohandas
- Division of Crop Protection/Division of Crop Utilization, Central Tuber Crops Research InstituteThiruvananthapuram, India
- *Correspondence: Chellapan Mohandas, ; Ruby John Anto,
| | - Ruby John Anto
- Division of Cancer Research, Rajiv Gandhi Centre for BiotechnologyThiruvananthapuram, India
- *Correspondence: Chellapan Mohandas, ; Ruby John Anto,
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Belamcandae chinensis rhizoma – a review of phytochemistry and bioactivity. Fitoterapia 2015; 107:1-14. [DOI: 10.1016/j.fitote.2015.08.015] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Revised: 08/28/2015] [Accepted: 08/30/2015] [Indexed: 01/12/2023]
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ALMOSNID NADINMARWAN, GAO YING, HE CHUNNIAN, PARK HYOSIM, ALTMAN ELLIOT. In vitro antitumor effects of two novel oligostilbenes, cis- and trans-suffruticosol D, isolated from Paeonia suffruticosa seeds. Int J Oncol 2015; 48:646-56. [PMID: 26647827 DOI: 10.3892/ijo.2015.3269] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Accepted: 11/02/2015] [Indexed: 11/05/2022] Open
Abstract
Naturally derived stilbenes have been shown to elicit cytotoxic, anti-steroidal, anti-mutagenic, anti-oxidative, anti-inflammatory, and antitumor bioactivities. Previous phytochemical studies revealed that the seeds of Paeonia suffruticosa are rich in natural stilbenes. In this study the antitumor effects and mechanism of action of the oligostilbene isomers, cis- and trans-suffruticosol D, isolated from the seeds of P. suffruticosa were examined. cis- and trans-suffruticosol D exhibited remarkable cytotoxicity against the human cancer cell lines A549 (lung), BT20 (breast), MCF-7 (breast), and U2OS (osteosarcoma), but showed significantly less toxicity to the normal human cell lines HMEC (breast) and HPL1A (lung). We also demonstrated that cis- and trans-suffruticosol D exerted their antitumor effects by provoking oxidative stress, stimulating apoptosis, decreasing the mitochondrial membrane potential, inhibiting cell motility, and blocking the NF-κB pathway in human lung cancer cells. In addition, we evaluated their respective bioefficacy and found that trans-suffruticosol D is more potent than cis-suffruticosol D. Collectively, our results suggest that cis- and trans-suffruticosol D could be promising chemotherapeutic agents against cancer.
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Chen C. Sinapic Acid and Its Derivatives as Medicine in Oxidative Stress-Induced Diseases and Aging. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2015; 2016:3571614. [PMID: 27069529 PMCID: PMC4812465 DOI: 10.1155/2016/3571614] [Citation(s) in RCA: 145] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2014] [Revised: 01/02/2015] [Accepted: 01/12/2015] [Indexed: 12/16/2022]
Abstract
Sinapic acid (3,5-dimethoxy-4-hydroxycinnamic acid) is an orally bioavailable phytochemical, extensively found in spices, citrus and berry fruits, vegetables, cereals, and oilseed crops and is known to exhibit antioxidant, anti-inflammatory, anticancer, antimutagenic, antiglycemic, neuroprotective, and antibacterial activities. The literature reveals that sinapic acid is a bioactive phenolic acid and has the potential to attenuate various chemically induced toxicities. This minireview is an effort to summarize the available literature about pharmacokinetic, therapeutic, and protective potential of this versatile molecule in health related areas.
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Affiliation(s)
- Chunye Chen
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, Bioengineering College, Chongqing University, Chongqing 400030, China
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105
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Zhang L, Dai F, Sheng PL, Chen ZQ, Xu QP, Guo YQ. Resveratrol analogue 3,4,4'-trihydroxy-trans-stilbene induces apoptosis and autophagy in human non-small-cell lung cancer cells in vitro. Acta Pharmacol Sin 2015; 36:1256-65. [PMID: 26190500 DOI: 10.1038/aps.2015.46] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2015] [Accepted: 04/23/2015] [Indexed: 12/11/2022] Open
Abstract
AIM To investigate the effects of 3,4,4'-trihydroxy-trans-stilbene (3,4,4'-THS), an analogue of resveratrol, on human non-small-cell lung cancer (NSCLC) cells in vitro. METHODS Cell viability of NSCLC A549 cells was determined by MTT assay. Cell apoptosis was evaluated using flow cytometry and TUNEL assay. Cell necrosis was evaluated with LDH assay. The expression of apoptosis- or autophagy-associated proteins was measured using Western blotting. The formation of acidic compartments was detected using AO staining, neutral red staining and Lysotracker-Red staining. LC3 punctae were analyzed with fluorescence microscopy. RESULTS Treatment with 3,4,4'-THS (10-80 μmol/L) concentration-dependently inhibited the cell viability. It did not cause cell necrosis, but induced apoptosis accompanied by up-regulation of cleavaged PARP, caspase3/9 and Bax, and by down-regulation of Bcl-2 and surviving. It also increased the formation of acidic compartments, LC3-II accumulation and GFP-LC3 labeled autophagosomes in the cells. It inhibited the mTOR-dependent pathway, but did not impair autophagic flux. 3,4,4'-THS-induced cell death was enhanced by the autophagy inhibitors 3-MA (5 mmol/L) or Wortmannin (2 μmol/L). Moreover, 3,4,4'-THS treatment elevated the ROS levels in the cells, and co-treatment with 3-MA further elevated the ROS levels. 3,4,4'-THS-induced apoptosis and autophagy in the cells was attenuated by NAC (10 mmol/L)Conclusion:3,4,4'-THS induces both apoptosis and autophagy in NSCLC A549 cells in vitro. Autophagy inhibitors promote 3,4,4'-THS-induced apoptosis of A549 cells, thus combination of 3,4,4'-THS and autophagy inhibitor provides a promising strategy for NSCLC treatment.
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Ruivo J, Francisco C, Oliveira R, Figueiras A. The main potentialities of resveratrol for drug delivery systems. BRAZ J PHARM SCI 2015. [DOI: 10.1590/s1984-82502015000300002] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Resveratrol (RSV), a natural polyphenol found in grapes, was found to be effective in the prevention and therapy of several diseases, however, it does have unfavourable physicochemical properties. In this context, an increasing number of studies have aimed at developing novel therapeutic systems for its delivery to overcome these disadvantages. This review focuses on the mechanisms of action and therapeutic applications. Finally, it also describes some tested formulations for RSV administration, controlled release and targeting, developed with the purpose of increasing RSV bioavailability.
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Buhrmann C, Shayan P, Kraehe P, Popper B, Goel A, Shakibaei M. Resveratrol induces chemosensitization to 5-fluorouracil through up-regulation of intercellular junctions, Epithelial-to-mesenchymal transition and apoptosis in colorectal cancer. Biochem Pharmacol 2015; 98:51-68. [PMID: 26310874 DOI: 10.1016/j.bcp.2015.08.105] [Citation(s) in RCA: 102] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Accepted: 08/20/2015] [Indexed: 12/18/2022]
Abstract
5-Fluorouracil (5-FU), a common chemotherapeutic agent used for the treatment of colorectal cancer (CRC), by itself has inadequate response rates; highlighting the need for novel and improved treatment regimens for these patients. Resveratrol, a naturally-occurring polyphenol, has been linked with chemosensitizing potential and anticancer properties; however, the underlying mechanisms for these effects remain poorly understood. The effect of resveratrol in parental CRC cell lines (HCT116, SW480) and their corresponding isogenic 5-FU-chemoresistant derived clones (HCT116R, SW480R) was examined by MTT assays, intercellular junction formation and apoptosis by electron- and immunoelectron microscopy, nuclear factor-kappaB (NF-κB) and NF-κB regulated gene products by western blot analysis in a 3D-alginate microenvironment. Resveratrol blocked the proliferation of all four CRC cell lines and synergized the invasion inhibitory effects of 5-FU. Interestingly, resveratrol induced a transition from 5-FU-induced formation of microvilli to a planar cell surface, which was concomitant with up-regulation of desmosomes, gap- and tight junctions (claudin-2) and adhesion molecules (E-cadherin) expression in HCT116 and HCT116R cells. Further, resveratrol significantly attenuated drug resistance through inhibition of epithelial-mesenchymal transition (EMT) factors (decreased vimentin and slug, increased E-cadherin) and down-regulation of NF-κB activation and its translocation to the nucleus and abolished NF-κB-regulated gene end-products (MMP-9, caspase-3). Moreover, this suppression was mediated through inhibition of IκBα kinase and IκBα phosphorylation and degradation. Our results demonstrate that resveratrol can potentiate the anti-tumor effects of 5-FU on CRC cells by chemosensitizing them, inhibiting an EMT phenotype via up-regulation of intercellular junctions and by down-regulation of NF-κB pathway.
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Affiliation(s)
- Constanze Buhrmann
- Institute of Anatomy, Ludwig-Maximilian-University Munich, Pettenkoferstrasse 11, D-80336 Munich, Germany
| | - Parviz Shayan
- Investigating Institute of Molecular Biological System Transfer, Tehran 1417863171, Iran; Department of Parasitology, Faculty of Veterinary Medicine, University of Tehran, Tehran, 141556453, Iran
| | - Patricia Kraehe
- Institute of Anatomy, Ludwig-Maximilian-University Munich, Pettenkoferstrasse 11, D-80336 Munich, Germany
| | - Bastian Popper
- Department of Anatomy and Cell Biology, Biomedical Center, Ludwig-Maximilian-University Munich, D-80336 Munich, Germany
| | - Ajay Goel
- Center for Gastrointestinal Research; Center for Epigenetics, Cancer Prevention and Cancer Genomics, Baylor Research Institute and Sammons Cancer Center, Baylor University Medical Center, Dallas, Texas, USA
| | - Mehdi Shakibaei
- Institute of Anatomy, Ludwig-Maximilian-University Munich, Pettenkoferstrasse 11, D-80336 Munich, Germany.
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Xu Q, Zong L, Chen X, Jiang Z, Nan L, Li J, Duan W, Lei J, Zhang L, Ma J, Li X, Wang Z, Wu Z, Ma Q, Ma Z. Resveratrol in the treatment of pancreatic cancer. Ann N Y Acad Sci 2015; 1348:10-9. [PMID: 26284849 DOI: 10.1111/nyas.12837] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2015] [Revised: 06/03/2015] [Accepted: 06/08/2015] [Indexed: 12/19/2022]
Abstract
Pancreatic cancer (PCa), which is now the fourth most frequent cause of cancer-related death, has a median survival of less than 6 months and a 5-year survival rate of <6%. The hallmarks of this cancer include poor outcome, short survival duration, and resistance to therapy. The poor prognosis of PCa is related to its local recurrence, lymph node and liver metastases, and peritoneal dissemination. Recent studies have indicated that resveratrol has cancer-chemopreventive and anticancer activities. In this short review we summarize the chemopreventive and treatment effects of resveratrol in PCa, as follows: resveratrol inhibits the proliferation of pancreatic cancer cells; induces apoptosis and cell cycle arrest; inhibits metastasis and invasion of PCa cells; inhibits the proliferation and viability of PCa stem cells; enhances the chemoradiosensitization of PCa cells; and can affect diabetes mellitus in addition to PCa. On the basis of these data, resveratrol may be considered a potential anticancer agent for the treatment of PCa.
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Affiliation(s)
| | | | - Xin Chen
- Department of Hepatobiliary Surgery
| | | | | | | | | | | | | | | | - Xuqi Li
- Department of General Surgery, First Affiliated Hospital, Xi'an Jiaotong University, Shaanxi, China
| | | | - Zheng Wu
- Department of Hepatobiliary Surgery
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Azzolini M, Mattarei A, La Spina M, Marotta E, Zoratti M, Paradisi C, Biasutto L. Synthesis and Evaluation as Prodrugs of Hydrophilic Carbamate Ester Analogues of Resveratrol. Mol Pharm 2015; 12:3441-54. [DOI: 10.1021/acs.molpharmaceut.5b00464] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Michele Azzolini
- Department of Biomedical Sciences, University of Padova, viale G. Colombo
3, 35131 Padova, Italy
- NÓOS Srl, via Campello sul Clitunno 34, 00181 Roma, Italy
| | - Andrea Mattarei
- Department
of Chemical Sciences, University of Padova, via Marzolo 1, 35121 Padova, Italy
| | - Martina La Spina
- Department of Biomedical Sciences, University of Padova, viale G. Colombo
3, 35131 Padova, Italy
| | - Ester Marotta
- Department
of Chemical Sciences, University of Padova, via Marzolo 1, 35121 Padova, Italy
| | - Mario Zoratti
- Department of Biomedical Sciences, University of Padova, viale G. Colombo
3, 35131 Padova, Italy
- CNR Neuroscience Institute, viale G. Colombo 3, 35131 Padova, Italy
| | - Cristina Paradisi
- Department
of Chemical Sciences, University of Padova, via Marzolo 1, 35121 Padova, Italy
| | - Lucia Biasutto
- Department of Biomedical Sciences, University of Padova, viale G. Colombo
3, 35131 Padova, Italy
- CNR Neuroscience Institute, viale G. Colombo 3, 35131 Padova, Italy
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110
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Han G, Xia J, Gao J, Inagaki Y, Tang W, Kokudo N. Anti-tumor effects and cellular mechanisms of resveratrol. Drug Discov Ther 2015; 9:1-12. [PMID: 25788047 DOI: 10.5582/ddt.2015.01007] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Resveratrol (3, 5, 4'-trihydroxystilbene) is a phytoalexin contained in a variety of plants, such as grapes, berries and especially in the dried roots of Polygonum cuspidatum Sieb. et Zucc. It has been shown to exhibit anti-oxidative and anti-inflammation activity, and to reverse the effects of aging. Its ability to suppress cell proliferation, induce apoptosis and suppress the metastasis and invasion in a number of cell lines has prompted a large interest from people for its use as an anti-tumor component. In this review, evidence of resveratrol's anti-tumor effects and molecular mechanisms are recapitulated. First, we present the anti-apoptosis, anti-invasion/metastasis and anti-inflammation effect of resveratrol; second, the main signaling pathways involved in these activities are described and summarized with the studies of different tumors involved. Resveratrol not only induces apoptosis of tumor cells through intrinsic/extrinsic pathways and cell cycle arrest, but also inhibits the invasion and metastasis abilities of tumors via modulating collagen degradation-related molecular targets. Altogether, the present findings suggest the anti-tumor potential of resveratrol against various types of cancers.
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Affiliation(s)
- Guohua Han
- Hepato-Biliary-Pancreatic Surgery Division, Department of Surgery, Graduate School of Medicine, The University of Tokyo
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111
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Rotelli MT, Bocale D, De Fazio M, Ancona P, Scalera I, Memeo R, Travaglio E, Zbar AP, Altomare DF. IN-VITRO evidence for the protective properties of the main components of the Mediterranean diet against colorectal cancer: A systematic review. Surg Oncol 2015; 24:145-52. [PMID: 26303826 DOI: 10.1016/j.suronc.2015.08.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2014] [Revised: 07/21/2015] [Accepted: 08/04/2015] [Indexed: 02/07/2023]
Abstract
AIM Epidemiological studies have shown that the incidence and mortality rates of colorectal cancer (CRC) vary over 10-fold worldwide where within Westernized societies lower rates are observed amongst populations living within the Mediterranean basin, suggesting a significant influence of environment and dietary style in CRC carcinogenesis. Interpretation of the data concerning the benefits of mediterranean (MD) diet is difficult in vivo because of the variability of alimentary regimens used, the differing compliance with dietary supplementation and because of the non-uniform duration of patient cohort observation. Therefore, the aim of this review is to evaluate the in-vitro effects on colorectal cancer cell lines. METHODS the literature concerning the in-vitro effects of 4 of the principal components symbolizing the MD such as olive oil (polyphenol), red chili (capsaicin), tomato (lycopene) and red grapes (resveratrol) have been systematically reviewed. RESULTS Several studies have demonstrated that polyphenols form olive oil, lycopene, resveratrol and capsaicin have multiple anticancer properties affecting several metabolic pathways involved in cancerogenesis, apoptosis, and metastasis in CRC cell lines. CONCLUSION This review summarizes some of the most recent data potentially supportive of the use of MD in CRC chemoprevention, analyzing the in vitro effects of individual components of the MD on CRC cell development, progression, metastasis and apoptosis.
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Affiliation(s)
- M T Rotelli
- DETO Dept of Emergency and Organ Transplantation, University "Aldo Moro" of Bari, Italy.
| | - D Bocale
- DETO Dept of Emergency and Organ Transplantation, University "Aldo Moro" of Bari, Italy
| | - M De Fazio
- DETO Dept of Emergency and Organ Transplantation, University "Aldo Moro" of Bari, Italy
| | - P Ancona
- DETO Dept of Emergency and Organ Transplantation, University "Aldo Moro" of Bari, Italy
| | - I Scalera
- DETO Dept of Emergency and Organ Transplantation, University "Aldo Moro" of Bari, Italy
| | - R Memeo
- DETO Dept of Emergency and Organ Transplantation, University "Aldo Moro" of Bari, Italy
| | - E Travaglio
- DETO Dept of Emergency and Organ Transplantation, University "Aldo Moro" of Bari, Italy
| | - A P Zbar
- Department of Surgery and Transplantation, Chaim Sheba Medical Center, Israel; Sackler School of Medicine, Tel Aviv University, Israel; Department of Anatomy, School of Medical Sciences, Centre for Bioengineering and Nanomedicine, University of Otago, Dunedin, New Zealand
| | - D F Altomare
- DETO Dept of Emergency and Organ Transplantation, University "Aldo Moro" of Bari, Italy
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112
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Abdel-Latif GA, Al-Abd AM, Tadros MG, Al-Abbasi FA, Khalifa AE, Abdel-Naim AB. The chemomodulatory effects of resveratrol and didox on herceptin cytotoxicity in breast cancer cell lines. Sci Rep 2015; 5:12054. [PMID: 26156237 PMCID: PMC4496837 DOI: 10.1038/srep12054] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Accepted: 04/17/2015] [Indexed: 01/03/2023] Open
Abstract
Herceptin is considered an essential treatment option for double negative breast cancer. Resveratrol and didox are known chemopreventive agents with potential anticancer properties. The aim of the current study is to investigate the influence of resveratrol and didox on the cytotoxicity profile of herceptin in HER-2 receptor positive and HER-2 receptor negative breast cancer cell lines (T47D and MCF-7 cell lines, respectively). The IC50's of herceptin in T47D and MCF-7 were 0.133 ± 0.005 ng/ml and 23.3795 ± 1.99 ng/ml respectively. Equitoxic combination of herceptin with resveratrol or didox in T47D significantly reduced the IC50 to 0.052 ± 0.001 and 0.0365 ± 0.001 ng/ml, respectively and similar results were obtained in MCF-7. The gene expression of BCL-xl was markedly decreased in T47D cells following treatment with herceptin/resveratrol compared to herceptin alone. Immunocytochemical staining of HER-2 receptor in T47D cells showed a significant reduction after treatment with herceptin/resveratrol combination compared to herceptin alone. On the contrary, herceptin/didox combination had no significant effect on HER-2 receptor expression. Cell cycle analysis showed an arrest at G2/M phase for both cell lines following all treatments. In conclusion, herceptin/resveratrol and herceptin/didox combinations improved the cytotoxic profile of herceptin in both T47D and MCF-7 breast cancer cell lines.
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Affiliation(s)
- Ghada A Abdel-Latif
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Ain Shams University, Egypt
| | - Ahmed M Al-Abd
- 1] Department of Pharmacology and Toxicology, Faculty of Pharmacy, King Abdulaziz University, Saudi Arabia [2] Department of Pharmacology, National Research Center, Giza, Egypt
| | - Mariane G Tadros
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Ain Shams University, Egypt
| | - Fahad A Al-Abbasi
- Department of Biochemistry, Faculty of science, King Abdulaziz University, Saudi Arabia
| | - Amany E Khalifa
- 1] Department of Pharmacology and Toxicology, Faculty of Pharmacy, Ain Shams University, Egypt [2] 57357 Children's Cancer Hospital, Cairo, Egypt
| | - Ashraf B Abdel-Naim
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Ain Shams University, Egypt
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Corominas-Faja B, Santangelo E, Cuyàs E, Micol V, Joven J, Ariza X, Segura-Carretero A, García J, Menendez JA. Computer-aided discovery of biological activity spectra for anti-aging and anti-cancer olive oil oleuropeins. Aging (Albany NY) 2015; 6:731-41. [PMID: 25324469 PMCID: PMC4221918 DOI: 10.18632/aging.100691] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Aging is associated with common conditions, including cancer, diabetes, cardiovascular disease, and Alzheimer's disease. The type of multi-targeted pharmacological approach necessary to address a complex multifaceteddisease such as aging might take advantage of pleiotropic natural polyphenols affecting a wide variety of biological processes. We have recently postulated that the secoiridoids oleuropein aglycone (OA) and decarboxymethyl oleuropein aglycone (DOA), two complex polyphenols present in health-promoting extra virgin olive oil (EVOO), might constitute anew family of plant-produced gerosuppressant agents. This paper describes an analysis of the biological activity spectra (BAS) of OA and DOA using PASS (Prediction of Activity Spectra for Substances) software. PASS can predict thousands of biological activities, as the BAS of a compound is an intrinsic property that is largely dependent on the compound's structure and reflects pharmacological effects, physiological and biochemical mechanisms of action, and specific toxicities. Using Pharmaexpert, a tool that analyzes the PASS-predicted BAS of substances based on thousands of “mechanism-effect” and “effect-mechanism” relationships, we illuminate hypothesis-generating pharmacological effects, mechanisms of action, and targets that might underlie the anti-aging/anti-cancer activities of the gerosuppressant EVOO oleuropeins.
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Affiliation(s)
- Bruna Corominas-Faja
- Metabolism and Cancer Group, Translational Research Laboratory, Catalan Institute of Oncology (ICO), Girona, Spain. Girona Biomedical Research Institute (IDIBGI), Girona, Spain
| | - Elvira Santangelo
- Departament de Química Orgànica, Fac. de Química, Institut de Biomedicina de la UB (IBUB), Universitat de Barcelona, Barcelona, Spain
| | - Elisabet Cuyàs
- Metabolism and Cancer Group, Translational Research Laboratory, Catalan Institute of Oncology (ICO), Girona, Spain. Girona Biomedical Research Institute (IDIBGI), Girona, Spain
| | - Vicente Micol
- Instituto de Biología Molecular y Celular (IBMC), Universidad Miguel Hernández, Elche, Alicante, Spain
| | - Jorge Joven
- Campus of International Excellence Southern Catalonia, Unitat de Recerca Biomèdica, Hospital Universitari de Sant Joan, Institut d'Investigació Sanitària Pere Virgili, Universitat Rovira i Virgili, Reus, Spain
| | - Xavier Ariza
- Departament de Química Orgànica, Fac. de Química, Institut de Biomedicina de la UB (IBUB), Universitat de Barcelona, Barcelona, Spain
| | - Antonio Segura-Carretero
- Department of Analytical Chemistry, Faculty of Sciences, University of Granada, Granada, Spain; Functional Food Research and Development Centre (CIDAF), PTS Granada, Granada, Spain
| | - Jordi García
- Departament de Química Orgànica, Fac. de Química, Institut de Biomedicina de la UB (IBUB), Universitat de Barcelona, Barcelona, Spain
| | - Javier A Menendez
- Metabolism and Cancer Group, Translational Research Laboratory, Catalan Institute of Oncology (ICO), Girona, Spain. Girona Biomedical Research Institute (IDIBGI), Girona, Spain
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Siddiqui IA, Sanna V, Ahmad N, Sechi M, Mukhtar H. Resveratrol nanoformulation for cancer prevention and therapy. Ann N Y Acad Sci 2015; 1348:20-31. [DOI: 10.1111/nyas.12811] [Citation(s) in RCA: 110] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2015] [Revised: 05/13/2015] [Accepted: 05/18/2015] [Indexed: 12/17/2022]
Affiliation(s)
- Imtiaz A. Siddiqui
- School of Medicine and Public Health, Department of Dermatology; University of Wisconsin-Madison; Madison Wisconsin
| | - Vanna Sanna
- Department of Chemistry and Pharmacy, Laboratory of Nanomedicine; University of Sassari; Sassari Italy
| | - Nihal Ahmad
- School of Medicine and Public Health, Department of Dermatology; University of Wisconsin-Madison; Madison Wisconsin
| | - Mario Sechi
- Department of Chemistry and Pharmacy, Laboratory of Nanomedicine; University of Sassari; Sassari Italy
| | - Hasan Mukhtar
- School of Medicine and Public Health, Department of Dermatology; University of Wisconsin-Madison; Madison Wisconsin
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115
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TCF4 Is a Molecular Target of Resveratrol in the Prevention of Colorectal Cancer. Int J Mol Sci 2015; 16:10411-25. [PMID: 25961950 PMCID: PMC4463653 DOI: 10.3390/ijms160510411] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Revised: 04/30/2015] [Accepted: 05/04/2015] [Indexed: 12/22/2022] Open
Abstract
The Wnt/β-catenin pathway plays an essential role in the tumorigenesis of colorectal cancer. T-cell factor-4 (TCF4) is a member of the TCF/LEF (lymphoid enhancer factor) family of transcription factors, and dysregulation of β-catenin is decisive for the initiation and progression of colorectal cancer. However, the role of TCF4 in the transcriptional regulation of its target gene remained poorly understood. Resveratrol is a dietary phytoalexin and present in many plants, including grape skin, nuts and fruits. Although resveratrol has been widely implicated in anti-tumorigenic and pro-apoptotic properties in several cancer models, the underlying cellular mechanisms are only partially understood. The current study was performed to elucidate the molecular mechanism of the anti-cancer activity of resveratrol in human colorectal cancer cells. The treatment of resveratrol and other phytochemicals decreased the expression of TCF4. Resveratrol decreases cellular accumulation of exogenously-introduced TCF4 protein, but did not change the TCF4 transcription. The inhibition of proteasomal degradation using MG132 (carbobenzoxy-Leu-Leu-leucinal) and lactacystin ameliorates resveratrol-stimulated down-regulation of TCF4. The half-life of TCF4 was decreased in the cells exposed to resveratrol. Resveratrol increased phosphorylation of TCF4 at serine/threonine residues through ERK (extracellular signal-regulated kinases) and p38-dependent pathways. The TCF4 knockdown decreased TCF/β-catenin-mediated transcriptional activity and sensitized resveratrol-induced apoptosis. The current study provides a new mechanistic link between resveratrol and TCF4 down-regulation and significant benefits for further preclinical and clinical practice.
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Abstract
Resveratrol is a natural polyphenol found in a wide variety of plants, including grapes, berries, and peanuts. Resveratrol can modulate a wide spectrum of molecular targets, including those involved in cancer signaling pathways. Here, we evaluated the role of resveratrol in tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) and examined the molecular mechanisms in the human hepatocellular carcinoma cell line HepG2. We used the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide assay to assess cell viability, flow cytometry to analyze cell cycle and apoptosis, and immunoblotting to detect protein expression. Resveratrol decreased cell viability at a concentration of 100 μmol/l or higher. At a concentration of 50 μmol/l, resveratrol induced S phase arrest of the cell cycle without apoptosis. In addition, phospho-AMPK increased significantly in a dose-dependent manner. Resveratrol was found to synergistically augment TRAIL-induced apoptosis. The rates of early apoptosis were 3.4, 9.6, and 49.6% on treatment with 50 μmol/l resveratrol, 10 ng/ml TRAIL, and both reagents, respectively. Resveratrol significantly downregulated the expression of survivin in a dose-dependent manner. In conclusion, we found that that resveratrol could augment TRAIL sensitivity by downregulating survivin. These results suggest that combination resveratrol with TRAIL may be an effective new strategy for the treatment of hepatocellular carcinoma.
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Design, synthesis, and biological evaluation of benzoselenazole-stilbene hybrids as multi-target-directed anti-cancer agents. Eur J Med Chem 2015; 95:220-9. [PMID: 25817772 DOI: 10.1016/j.ejmech.2015.03.030] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Revised: 01/28/2015] [Accepted: 03/13/2015] [Indexed: 12/15/2022]
Abstract
To identify novel multi-target-directed drug candidates for the treatment of cancer, a series of benzoselenazole-stilbene hybrids were synthesised by combining the pharmacophores of resveratrol and ebselen. The biological assay indicated that all of the hybrids exhibited antiproliferative activities against four human cancer cell lines and demonstrated good TrxR inhibitory activities. The mechanism of cell apoptosis was investigated in G2/M cell cycle arrest induced by compound 6e and the apoptosis of the human liver carcinoma Bel-7402 cell line. The significant increase in intracellular ROS confirmed that compound 6e was capable of causing oxidative stress-induced apoptosis in cancer cells. Our results support the potential of compound 6e as a candidate for further studies examining the development of novel drugs for cancer treatment.
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118
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Kim KJ, Lee J, Park Y, Lee SH. ATF3 Mediates Anti-Cancer Activity of Trans-10, cis-12-Conjugated Linoleic Acid in Human Colon Cancer Cells. Biomol Ther (Seoul) 2015; 23:134-40. [PMID: 25767681 PMCID: PMC4354314 DOI: 10.4062/biomolther.2014.107] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2014] [Revised: 11/25/2014] [Accepted: 12/11/2014] [Indexed: 12/28/2022] Open
Abstract
Conjugated linoleic acids (CLA) are a family of isomers of linoleic acid. CLA increases growth arrest and apoptosis of human colorectal cancer cells through an isomer-specific manner. ATF3 belongs to the ATF/CREB family of transcription factors and is associated with apoptosis in colorectal cancer. The present study was performed to investigate the molecular mechanism by which t10, c12-CLA stimulates ATF3 expression and apoptosis in human colorectal cancer cells. t10, c12-CLA increased an apoptosis in human colorectal cancer cells in dose dependent manner. t10, c12-CLA induced ATF3 mRNA and luciferase activity of ATF3 promoter in a dose-dependent manner. The responsible region for ATF3 transcriptional activation by t10, c12-CLA is located between −147 and −1850 of ATF3 promoter. mRNA stability of ATF3 was not affected by t10, c12-CLA treatment. t10, c12-CLA increases GSK3β expression and suppresses IGF-1-stimulated phosphorylation of Akt. The knockdown of ATF3 suppressed expression of GSK3β and NAG-1 and PARP cleavage. The results suggest that t10, c12-CLA induces apoptosis through ATF3-mediated pathway in human colorectal cancer cells.
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Affiliation(s)
- Kui-Jin Kim
- Department of Nutrition and Food Science, College of Agriculture and Natural Resources, University of Maryland, College Park, MD, 20742, USA
| | - Jihye Lee
- Department of Nutrition and Food Science, College of Agriculture and Natural Resources, University of Maryland, College Park, MD, 20742, USA
| | - Yeonhwa Park
- Department of Food Science, University of Massachusetts, Amherst, MA, 01003, USA
| | - Seong-Ho Lee
- Department of Nutrition and Food Science, College of Agriculture and Natural Resources, University of Maryland, College Park, MD, 20742, USA
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119
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Modification of Antitumor Immunity and Tumor Microenvironment by Resveratrol in Mouse Renal Tumor Model. Cell Biochem Biophys 2015; 72:617-25. [DOI: 10.1007/s12013-015-0513-z] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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120
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Li Y, Sarkar FH. Targeting Epigenetically Deregulated miRNA by Nutraceuticals: Focusing on Cancer Prevention and Treatment. ACTA ACUST UNITED AC 2015. [DOI: 10.1007/s40495-015-0016-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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121
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Wang Z, Dabrosin C, Yin X, Fuster MM, Arreola A, Rathmell WK, Generali D, Nagaraju GP, El-Rayes B, Ribatti D, Chen YC, Honoki K, Fujii H, Georgakilas AG, Nowsheen S, Amedei A, Niccolai E, Amin A, Ashraf SS, Helferich B, Yang X, Guha G, Bhakta D, Ciriolo MR, Aquilano K, Chen S, Halicka D, Mohammed SI, Azmi AS, Bilsland A, Keith WN, Jensen LD. Broad targeting of angiogenesis for cancer prevention and therapy. Semin Cancer Biol 2015; 35 Suppl:S224-S243. [PMID: 25600295 PMCID: PMC4737670 DOI: 10.1016/j.semcancer.2015.01.001] [Citation(s) in RCA: 312] [Impact Index Per Article: 34.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2014] [Revised: 12/25/2014] [Accepted: 01/08/2015] [Indexed: 12/20/2022]
Abstract
Deregulation of angiogenesis – the growth of new blood vessels from an existing vasculature – is a main driving force in many severe human diseases including cancer. As such, tumor angiogenesis is important for delivering oxygen and nutrients to growing tumors, and therefore considered an essential pathologic feature of cancer, while also playing a key role in enabling other aspects of tumor pathology such as metabolic deregulation and tumor dissemination/metastasis. Recently, inhibition of tumor angiogenesis has become a clinical anti-cancer strategy in line with chemotherapy, radiotherapy and surgery, which underscore the critical importance of the angiogenic switch during early tumor development. Unfortunately the clinically approved anti-angiogenic drugs in use today are only effective in a subset of the patients, and many who initially respond develop resistance over time. Also, some of the anti-angiogenic drugs are toxic and it would be of great importance to identify alternative compounds, which could overcome these drawbacks and limitations of the currently available therapy. Finding “the most important target” may, however, prove a very challenging approach as the tumor environment is highly diverse, consisting of many different cell types, all of which may contribute to tumor angiogenesis. Furthermore, the tumor cells themselves are genetically unstable, leading to a progressive increase in the number of different angiogenic factors produced as the cancer progresses to advanced stages. As an alternative approach to targeted therapy, options to broadly interfere with angiogenic signals by a mixture of non-toxic natural compound with pleiotropic actions were viewed by this team as an opportunity to develop a complementary anti-angiogenesis treatment option. As a part of the “Halifax Project” within the “Getting to know cancer” framework, we have here, based on a thorough review of the literature, identified 10 important aspects of tumor angiogenesis and the pathological tumor vasculature which would be well suited as targets for anti-angiogenic therapy: (1) endothelial cell migration/tip cell formation, (2) structural abnormalities of tumor vessels, (3) hypoxia, (4) lymphangiogenesis, (5) elevated interstitial fluid pressure, (6) poor perfusion, (7) disrupted circadian rhythms, (8) tumor promoting inflammation, (9) tumor promoting fibroblasts and (10) tumor cell metabolism/acidosis. Following this analysis, we scrutinized the available literature on broadly acting anti-angiogenic natural products, with a focus on finding qualitative information on phytochemicals which could inhibit these targets and came up with 10 prototypical phytochemical compounds: (1) oleanolic acid, (2) tripterine, (3) silibinin, (4) curcumin, (5) epigallocatechin-gallate, (6) kaempferol, (7) melatonin, (8) enterolactone, (9) withaferin A and (10) resveratrol. We suggest that these plant-derived compounds could be combined to constitute a broader acting and more effective inhibitory cocktail at doses that would not be likely to cause excessive toxicity. All the targets and phytochemical approaches were further cross-validated against their effects on other essential tumorigenic pathways (based on the “hallmarks” of cancer) in order to discover possible synergies or potentially harmful interactions, and were found to generally also have positive involvement in/effects on these other aspects of tumor biology. The aim is that this discussion could lead to the selection of combinations of such anti-angiogenic compounds which could be used in potent anti-tumor cocktails, for enhanced therapeutic efficacy, reduced toxicity and circumvention of single-agent anti-angiogenic resistance, as well as for possible use in primary or secondary cancer prevention strategies.
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Affiliation(s)
- Zongwei Wang
- Department of Urology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
| | - Charlotta Dabrosin
- Department of Oncology, Linköping University, Linköping, Sweden; Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
| | - Xin Yin
- Medicine and Research Services, Veterans Affairs San Diego Healthcare System & University of California, San Diego, San Diego, CA, USA
| | - Mark M Fuster
- Medicine and Research Services, Veterans Affairs San Diego Healthcare System & University of California, San Diego, San Diego, CA, USA
| | - Alexandra Arreola
- Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC, USA
| | - W Kimryn Rathmell
- Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC, USA
| | - Daniele Generali
- Molecular Therapy and Pharmacogenomics Unit, AO Isituti Ospitalieri di Cremona, Cremona, Italy
| | - Ganji P Nagaraju
- Department of Hematology and Medical Oncology, Emory University, Atlanta, GA, USA
| | - Bassel El-Rayes
- Department of Hematology and Medical Oncology, Emory University, Atlanta, GA, USA
| | - Domenico Ribatti
- Department of Basic Medical Sciences, Neurosciences and Sensory Organs, University of Bari Medical School, Bari, Italy; National Cancer Institute Giovanni Paolo II, Bari, Italy
| | - Yi Charlie Chen
- Department of Biology, Alderson Broaddus University, Philippi, WV, USA
| | - Kanya Honoki
- Department of Orthopedic Surgery, Arthroplasty and Regenerative Medicine, Nara Medical University, Nara, Japan
| | - Hiromasa Fujii
- Department of Orthopedic Surgery, Arthroplasty and Regenerative Medicine, Nara Medical University, Nara, Japan
| | - Alexandros G Georgakilas
- Physics Department, School of Applied Mathematics and Physical Sciences, National Technical University of Athens, Athens, Greece
| | - Somaira Nowsheen
- Mayo Graduate School, Mayo Clinic College of Medicine, Rochester, MN, USA
| | - Amedeo Amedei
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Elena Niccolai
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Amr Amin
- Department of Biology, College of Science, United Arab Emirate University, United Arab Emirates; Faculty of Science, Cairo University, Cairo, Egypt
| | - S Salman Ashraf
- Department of Chemistry, College of Science, United Arab Emirate University, United Arab Emirates
| | - Bill Helferich
- University of Illinois at Urbana Champaign, Urbana, IL, USA
| | - Xujuan Yang
- University of Illinois at Urbana Champaign, Urbana, IL, USA
| | - Gunjan Guha
- School of Chemical and Bio Technology, SASTRA University, Thanjavur, India
| | - Dipita Bhakta
- School of Chemical and Bio Technology, SASTRA University, Thanjavur, India
| | | | - Katia Aquilano
- Department of Biology, University of Rome "Tor Vergata", Rome, Italy
| | - Sophie Chen
- Ovarian and Prostate Cancer Research Trust Laboratory, Guilford, Surrey, UK
| | | | - Sulma I Mohammed
- Department of Comparative Pathobiology, Purdue University Center for Cancer Research, West Lafayette, IN, USA
| | - Asfar S Azmi
- School of Medicine, Wayne State University, Detroit, MI, USA
| | - Alan Bilsland
- Institute of Cancer Sciences, University of Glasgow, Glasgow, UK
| | - W Nicol Keith
- Institute of Cancer Sciences, University of Glasgow, Glasgow, UK
| | - Lasse D Jensen
- Department of Medical, and Health Sciences, Linköping University, Linköping, Sweden; Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden.
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122
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Cho KS, Lee EJ, Kwon KJ, Gonzales ELT, Kim YB, Cheong JH, Bahn GH, Lee J, Han SH, Kim YT, Shin CY. Resveratrol down-regulates a glutamate-induced tissue plasminogen activator via Erk and AMPK/mTOR pathways in rat primary cortical neurons. Food Funct 2014; 5:951-60. [PMID: 24599349 DOI: 10.1039/c3fo60397k] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Resveratrol (3,5,4'-trihydroxy-trans-stilbene, RSV) is a polyphenolic compound present in a variety of plant species (including grapes) that produces a myriad of biological activities including anti-inflammatory, antioxidant and neuroprotective effects. In this study, we investigate the effects of resveratrol on the basal and glutamate-stimulated expression and activity of a tissue plasminogen activator (tPA) that plays neuromodulatory or neurotoxic roles in many different neurological situations. Under basal conditions, resveratrol decreased the tPA expression and activity without affecting the tPA mRNA level in rat primary cortical neurons. RSV induced AMPK phosphorylation and inhibited mTOR phosphorylation. Inhibition of AMPK phosphorylation using compound C prevented resveratrol-induced down-regulation of tPA activity. This suggested that AMPK/mTOR-dependent translational inhibition contributes to the down-regulation of the tPA. Under glutamate-stimulated conditions of rat primary cortical neurons, tPA activity and expression were increased along with increased tPA mRNA expression but afterward treatment of RSV inhibited the glutamate-induced increase in tPA activity and expression and tPA mRNA expression. Glutamate stimulation induced activation of Akt and MAPK pathways as well as mTOR which were inhibited by RSV. Interestingly, the Erk pathway inhibitor U0126, but neither PI3K-Akt inhibitor LY294002 nor p38 inhibitor SB203580, mimicked the inhibitory action of RSV on glutamate-induced tPA up-regulation. This suggested the essential role of Erk in the transcriptional up-regulation of tPA expression, which is targeted by RSV. Glutamate stimulation induced neuronal cell death as determined by PI staining and MTT assay. However, RSV protected the cultured rat primary cortical neurons from glutamate-induced cell death as paralleled with the changes in tPA expression. These results suggested that RSV can modulate tPA activity under basal and stimulated conditions by both translational and transcriptional mechanisms. The regulation of the tPA by RSV provides additional therapeutic targets on top of the growing number of molecular substrates of RSV's action in the brain.
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Affiliation(s)
- Kyu Suk Cho
- Department of Neuroscience and Institute of Functional Genomics, Department of Pharmacology, School of Medicine, Konkuk University, 1 Hwayang-Dong, Gwangjin-Gu, Seoul 143-701, Korea.
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123
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Yuan L, Zhang Y, Xia J, Liu B, Zhang Q, Liu J, Luo L, Peng Z, Song Z, Zhu R. Resveratrol induces cell cycle arrest via a p53-independent pathway in A549 cells. Mol Med Rep 2014; 11:2459-64. [PMID: 25515619 PMCID: PMC4337473 DOI: 10.3892/mmr.2014.3100] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2014] [Accepted: 11/12/2014] [Indexed: 01/28/2023] Open
Abstract
Resveratrol, a non-flavone polyphenol compound, has a chemopreventive and chemotherapeutic effect against the progression of multiple types of cancer, including lung cancer. However, the molecular mechanism underlying the effects of resveratrol on cancer remain to be elucidated. In the present study, using an MTT assay, it was demonstrated that resveratrol inhibited cell proliferation in a concentration- and time-dependent manner. In addition, morphological features were observed in the A549, human lung cancer cell line, which included cell shrinkage, cells became distorted, certain cells became rounded and there was a concentration-dependent increase in the number of sloughed cells. Cell cycle analysis revealed that resveratrol may induce cell cycle arrest in the G0/G1 phase by downregulating the expression levels of cyclin D1, cyclin-dependent kinase (CDK)4 and CDK6, and upregulating the expression levels of the CDK inhibitors, p21 and p27. The immunofluorescence and western blot analysis results revealed that resveratrol upregulated the nuclear expression of p53 in A549 cells. Further studies have demonstrated that p53 downregulation did not contribute to the G0/G1 cell cycle arrest induced by resveratrol. In addition, resveratrol had no effect on the expression of p21, through use of the p53 inhibitor, pifithrin-α. The present study may offer a scientific basis for the further in-depth evaluation of resveratrol in the association of p53 and cell cycle arrest.
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Affiliation(s)
- Long Yuan
- Department of Respiratory Medicine, Affiliated Hospital of Guangdong Medical College, Zhanjiang, Guangdong 524001, P.R. China
| | - Yongrong Zhang
- Department of Respiratory Medicine, Affiliated Hospital of Guangdong Medical College, Zhanjiang, Guangdong 524001, P.R. China
| | - Juan Xia
- Laboratory of Hepatobiliary Surgery, Zhanjiang Key Laboratory of Hepatobiliary Diseases, Affiliated Hospital of Guangdong Medical College, Zhanjiang, Guangdong 524001, P.R. China
| | - Bin Liu
- Laboratory of Hepatobiliary Surgery, Zhanjiang Key Laboratory of Hepatobiliary Diseases, Affiliated Hospital of Guangdong Medical College, Zhanjiang, Guangdong 524001, P.R. China
| | - Qingyu Zhang
- Laboratory of Hepatobiliary Surgery, Zhanjiang Key Laboratory of Hepatobiliary Diseases, Affiliated Hospital of Guangdong Medical College, Zhanjiang, Guangdong 524001, P.R. China
| | - Jie Liu
- Laboratory of Hepatobiliary Surgery, Zhanjiang Key Laboratory of Hepatobiliary Diseases, Affiliated Hospital of Guangdong Medical College, Zhanjiang, Guangdong 524001, P.R. China
| | - Liming Luo
- Department of Respiratory Medicine, The Fourth Hospital of Zhanjiang, Zhanjiang, Guangdong 524001, P.R. China
| | - Zhou Peng
- Department of Respiratory Medicine, The Fourth Hospital of Zhanjiang, Zhanjiang, Guangdong 524001, P.R. China
| | - Zeqing Song
- Department of Respiratory Medicine, Affiliated Hospital of Guangdong Medical College, Zhanjiang, Guangdong 524001, P.R. China
| | - Runzhi Zhu
- Laboratory of Hepatobiliary Surgery, Zhanjiang Key Laboratory of Hepatobiliary Diseases, Affiliated Hospital of Guangdong Medical College, Zhanjiang, Guangdong 524001, P.R. China
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Jung KH, Lee JH, Park JW, Quach CHT, Moon SH, Cho YS, Lee KH. Resveratrol-loaded polymeric nanoparticles suppress glucose metabolism and tumor growth in vitro and in vivo. Int J Pharm 2014; 478:251-257. [PMID: 25445992 DOI: 10.1016/j.ijpharm.2014.11.049] [Citation(s) in RCA: 74] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2014] [Revised: 11/12/2014] [Accepted: 11/22/2014] [Indexed: 10/24/2022]
Abstract
Resveratrol (RSV) is a natural phenol with promising anti-tumor activities, but its use for in vivo cancer treatment is limited by low aqueous solubility and poor stability. In this study, we prepared RSV-loaded polyethylene glycol-polylactic acid (PEG-PLA; M.W. 5000-5000) polymer nanoparticles (NPs) for improved stability and controlled delivery, and investigated its metabolic and anti-tumor effect in vitro and in vivo. CT26 colon cancer cells displayed significantly reduced cell number to 5.6% and colony forming capacity to 6.3% of controls by 72 h treatment with 40 and 20 μM of RSV-NP, respectively. Flow cytometry and western blots demonstrated increased apoptotic cell death, and (18)F FDG uptake and reactive oxygen species was significantly reduced by RSV-NP. All of these effects were comparable to or greater in potency compared to free RSV. When RSV-NP was intravenously administered to CT26 tumor bearing mice, there was a reduction of (18)F FDG uptake on PET/CT by day 4. Longer treatment led to retardation of tumor growth accompanied by an improvement in survival compared to empty NP-injected controls. These results demonstrate that the in vitro and in vivo metabolic and anti-tumor effects of RSV is preserved by PEG-PLA NP loading, and provide an encouraging outlook on the potential of polymeric NPs as an effective method to deliver RSV for cancer therapy.
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Affiliation(s)
- Kyung-Ho Jung
- Department of Nuclear Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea; Samsung Biomedical Research Institute, Seoul, South Korea
| | - Jin Hee Lee
- Department of Nuclear Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Jin Won Park
- Department of Nuclear Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Cung Hoa Thien Quach
- Department of Nuclear Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Seung-Hwan Moon
- Department of Nuclear Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Young Seok Cho
- Department of Nuclear Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Kyung-Han Lee
- Department of Nuclear Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea; Samsung Biomedical Research Institute, Seoul, South Korea.
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125
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Resveratrol and its oligomers: modulation of sphingolipid metabolism and signaling in disease. Arch Toxicol 2014; 88:2213-32. [PMID: 25344023 DOI: 10.1007/s00204-014-1386-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Accepted: 10/08/2014] [Indexed: 01/10/2023]
Abstract
Resveratrol, a natural compound endowed with multiple health-promoting effects, has received much attention given its potential for the treatment of cardiovascular, inflammatory, neurodegenerative, metabolic and age-related diseases. However, the translational potential of resveratrol has been limited by its specificity, poor bioavailability and uncertain toxicity. In recent years, there has been an accumulation of evidence demonstrating that resveratrol modulates sphingolipid metabolism. Moreover, resveratrol forms higher order oligomers that exhibit better selectivity and potency in modulating sphingolipid metabolism. This review evaluates the evidence supporting the modulation of sphingolipid metabolism and signaling as a mechanism of action underlying the therapeutic efficacy of resveratrol and oligomers in diseases, such as cancer.
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Di Costanzo A, Del Gaudio N, Migliaccio A, Altucci L. Epigenetic drugs against cancer: an evolving landscape. Arch Toxicol 2014; 88:1651-68. [DOI: 10.1007/s00204-014-1315-6] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2014] [Accepted: 07/17/2014] [Indexed: 02/08/2023]
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Lipinski B. Cancer wars: significance of protein unfolding in cancer and its inhibition with natural amphiphilic substances. Front Oncol 2014; 4:183. [PMID: 25072027 PMCID: PMC4092357 DOI: 10.3389/fonc.2014.00183] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2014] [Accepted: 06/27/2014] [Indexed: 12/02/2022] Open
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128
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Kang TH, Knoff J, Yeh WH, Yang B, Wang C, Kim YS, Kim TW, Wu TC, Hung CF. Treatment of tumors with vitamin E suppresses myeloid derived suppressor cells and enhances CD8+ T cell-mediated antitumor effects. PLoS One 2014; 9:e103562. [PMID: 25072795 PMCID: PMC4114790 DOI: 10.1371/journal.pone.0103562] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2013] [Accepted: 07/03/2014] [Indexed: 02/04/2023] Open
Abstract
Vitamin E has been shown to have strong anticarcinogenic properties, including antioxidant characteristics, making it an ideal candidate for use in combination with immunotherapies that modify the tumor microenvironment. The tumor microenvironment contains immunosuppressive components, which can be diminished, and immunogenic components, which can be augmented by immunotherapies in order to generate a productive immune response. In the current study, we employ the α-tocopherol succinate isomer of vitamin E to reduce immunosuppression by myeloid derived suppressor cells (MDSCs) as well as adoptive transfer of antigen-specific CD8+ T cells to generate potent antitumor effects against the HPV16 E7-expressing TC-1 tumor model. We show that vitamin E alone induces necrosis of TC-1 cells and elicits antitumor effects in TC-1 tumor-bearing mice. We further demonstrate that vitamin E reverses the suppression of T cell activation by MDSCs and that this effect is mediated in part by a nitric oxide-dependent mechanism. Additionally, treatment with vitamin E reduces the percentage of MDSCs in tumor loci, and induces a higher percentage of T cells, following T cell adoptive transfer. Finally, we demonstrate that treatment with vitamin E followed by E7-specific T cell adoptive transfer experience elicits potent antitumor effects in tumor-bearing mice. Our data provide additional evidence that vitamin E has anticancer properties and that it has promise for use as an adjuvant in combination with a variety of cancer therapies.
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Affiliation(s)
- Tae Heung Kang
- Seoul Department of Immunology, College of Medicine, Konkuk University, Chungju, South Korea
- * E-mail: (THK); (CFH)
| | - Jayne Knoff
- Department of Pathology, Johns Hopkins Medical Institutions, Baltimore, Maryland, United States of America
| | - Wei-Hsi Yeh
- Department of Pathology, Johns Hopkins Medical Institutions, Baltimore, Maryland, United States of America
| | - Benjamin Yang
- Department of Pathology, Johns Hopkins Medical Institutions, Baltimore, Maryland, United States of America
| | - Chenguang Wang
- Department of Biostatistics and Bioinformatics, Sidney Kimmel Cancer Comprehensive Cancer Center, Johns Hopkins University, Baltimore, Maryland, United States of America
| | - Young Seob Kim
- Seoul Department of Immunology, College of Medicine, Konkuk University, Chungju, South Korea
| | - Tae Woo Kim
- Division of Infection and Immunology, Graduate School of Medicine, Korea University, Seoul, South Korea
| | - Tzyy-Choou Wu
- Department of Pathology, Johns Hopkins Medical Institutions, Baltimore, Maryland, United States of America
- Department of Obstetrics and Gynecology, Johns Hopkins Medical Institutions, Baltimore, Maryland, United States of America
- Department of Molecular Microbiology and Immunology, Johns Hopkins Medical Institutions, Baltimore, Maryland, United States of America
- Department of Oncology, Johns Hopkins Medical Institutions, Baltimore, Maryland, United States of America
| | - Chien-Fu Hung
- Department of Pathology, Johns Hopkins Medical Institutions, Baltimore, Maryland, United States of America
- Department of Oncology, Johns Hopkins Medical Institutions, Baltimore, Maryland, United States of America
- * E-mail: (THK); (CFH)
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Giovannelli L, Innocenti M, Santamaria A, Bigagli E, Pasqua G, Mulinacci N. Antitumoural activity of viniferin-enriched extracts fromVitis viniferaL. cell cultures. Nat Prod Res 2014; 28:2006-16. [DOI: 10.1080/14786419.2014.924935] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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130
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Biasi F, Deiana M, Guina T, Gamba P, Leonarduzzi G, Poli G. Wine consumption and intestinal redox homeostasis. Redox Biol 2014; 2:795-802. [PMID: 25009781 PMCID: PMC4085343 DOI: 10.1016/j.redox.2014.06.008] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2014] [Revised: 06/11/2014] [Accepted: 06/13/2014] [Indexed: 02/07/2023] Open
Abstract
Regular consumption of moderate doses of wine is an integral part of the Mediterranean diet, which has long been considered to provide remarkable health benefits. Wine's beneficial effect has been attributed principally to its non-alcoholic portion, which has antioxidant properties, and contains a wide variety of phenolics, generally called polyphenols. Wine phenolics may prevent or delay the progression of intestinal diseases characterized by oxidative stress and inflammation, especially because they reach higher concentrations in the gut than in other tissues. They act as both free radical scavengers and modulators of specific inflammation-related genes involved in cellular redox signaling. In addition, the importance of wine polyphenols has recently been stressed for their ability to act as prebiotics and antimicrobial agents. Wine components have been proposed as an alternative natural approach to prevent or treat inflammatory bowel diseases. The difficulty remains to distinguish whether these positive properties are due only to polyphenols in wine or also to the alcohol intake, since many studies have reported ethanol to possess various beneficial effects. Our knowledge of the use of wine components in managing human intestinal inflammatory diseases is still quite limited, and further clinical studies may afford more solid evidence of their beneficial effects.
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Key Words
- AKT, serine/threonine protein kinase (v-akt murine thimoma viral oncogene homolog1)
- Antioxidants
- CD, Crohns disease
- COX-2, cyclooxygenase-2
- Cys, cysteine
- DSS, dextran sodium sulfate
- ERK, extracellular signal-regulated kinase
- GRP, grape reaction product
- GSH, reduced glutathione
- Gut
- IBD, inflammatory bowel disease
- IFN, interferon
- IKB, inhibitor of NF-κB
- IL, interleukin
- Inflammation
- LPS, lipopolysaccharide
- MAPK, mitogen-activated protein kinase
- NADPH, nicotinamide adenine dinucleotide phosphate reduced
- NF-κB, nuclear factor-κB
- Nrf2, nuclear factor erythroid-2-related factor 2
- Oxidative stress
- PGE-2, prostaglandin E-2
- Polyphenols
- ROS, reactive oxygen species
- SIRT-1, silent mating type information regulation-1
- TNF-α, tumor necrosis factor alpha
- UC, Ulcerative Colitis
- Wine
- apoB48, apolipoprotein B48
- iNOS, inducible nitric oxide synthase
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Affiliation(s)
- Fiorella Biasi
- Department of Clinical and Biological Sciences, University of Turin at San Luigi Gonzaga Hospital, Orbassano, Turin 10043, Italy
| | - Monica Deiana
- Department of Biomedical Sciences, University of Cagliari, Cagliari 09124, Italy
| | - Tina Guina
- Department of Clinical and Biological Sciences, University of Turin at San Luigi Gonzaga Hospital, Orbassano, Turin 10043, Italy
| | - Paola Gamba
- Department of Clinical and Biological Sciences, University of Turin at San Luigi Gonzaga Hospital, Orbassano, Turin 10043, Italy
| | - Gabriella Leonarduzzi
- Department of Clinical and Biological Sciences, University of Turin at San Luigi Gonzaga Hospital, Orbassano, Turin 10043, Italy
| | - Giuseppe Poli
- Department of Clinical and Biological Sciences, University of Turin at San Luigi Gonzaga Hospital, Orbassano, Turin 10043, Italy
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Abstract
Resveratrol is a naturally occurring polyphenol that provides a number of anti-aging health benefits including improved metabolism, cardioprotection, and cancer prevention. Much of the work on resveratrol and cancer comes from in vitro studies looking at resveratrol actions on cancer cells and pathways. There are, however, comparatively fewer studies that have investigated resveratrol treatment and cancer outcomes in vivo, perhaps limited by its poor bioavailability when taken orally. Although research in cell culture has shown promising and positive effects of resveratrol, evidence from rodents and humans is inconsistent. This review highlights the in vivo effects of resveratrol treatment on breast, colorectal, liver, pancreatic, and prostate cancers. Resveratrol supplementation in animal models of cancer has shown positive, neutral as well as negative outcomes depending on resveratrol route of administration, dose, tumor model, species, and other factors. Within a specific cancer type, there is variability between studies with respect to strain, age, and sex of animal used, timing and method of resveratrol supplementation, and dose of resveratrol used to study cancer endpoints. Together, the data suggest that many factors need to be considered before resveratrol can be used for human cancer prevention or therapy.
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Affiliation(s)
| | - John A D'Orazio
- Department of PediatricsGraduate Center for Toxicology, Markey Cancer Center, University of Kentucky College of MedicineLexington, Kentucky, 40536-0096USA
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132
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Menet MC, Marchal J, Dal-Pan A, Taghi M, Nivet-Antoine V, Dargère D, Laprévote O, Beaudeux JL, Aujard F, Epelbaum J, Cottart CH. Resveratrol metabolism in a non-human primate, the grey mouse lemur (Microcebus murinus), using ultra-high-performance liquid chromatography-quadrupole time of flight. PLoS One 2014; 9:e91932. [PMID: 24663435 PMCID: PMC3963864 DOI: 10.1371/journal.pone.0091932] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2013] [Accepted: 02/18/2014] [Indexed: 12/12/2022] Open
Abstract
The grey mouse lemur (Microcebus murinus) is a non-human primate used to study the ageing process. Resveratrol is a polyphenol that may increase lifespan by delaying age-associated pathologies. However, no information about resveratrol absorption and metabolism is available for this primate. Resveratrol and its metabolites were qualitatively and quantitatively analyzed in male mouse-lemur plasma (after 200 mg.kg−1 of oral resveratrol) by ultra-high performance liquid chromatography (UHPLC), coupled to a quadrupole-time-of-flight (Q-TOF) mass spectrometer used in full-scan mode. Data analyses showed, in MSE mode, an ion common to resveratrol and all its metabolites: m/z 227.072, and an ion common to dihydro-resveratrol metabolites: m/z 229.08. A semi-targeted study enabled us to identify six hydrophilic resveratrol metabolites (one diglucurono-conjugated, two monoglucurono-conjugated, one monosulfo-conjugated and two both sulfo- and glucurono-conjugated derivatives) and three hydrophilic metabolites of dihydro-resveratrol (one monoglucurono-conjugated, one monosulfo-conjugated, and one both sulfo- and glucurono-conjugated derivatives). The presence of such metabolites has been already detected in the mouse, rat, pig, and humans. Free resveratrol was measurable for several hours in mouse-lemur plasma, and its two main metabolites were trans-resveratrol-3-O-glucuronide and trans-resveratrol-3-sulfate. Free dihydro-resveratrol was not measurable whatever the time of plasma collection, while its hydrophilic metabolites were present at 24 h after intake. These data will help us interpret the effect of resveratrol in mouse lemurs and provide further information on the inter-species characteristics of resveratrol metabolism.
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Affiliation(s)
- Marie-Claude Menet
- EA 4463, Faculté des Sciences Pharmaceutiques et Biologiques, Université Paris Descartes, Sorbonne Paris Cité, Paris, France
- * E-mail:
| | - Julia Marchal
- Mécanismes Adaptatifs et Evolution, UMR 7179, Centre National de la Recherche Scientifique, Muséum National d'Histoire Naturelle, Brunoy, France
| | - Alexandre Dal-Pan
- Mécanismes Adaptatifs et Evolution, UMR 7179, Centre National de la Recherche Scientifique, Muséum National d'Histoire Naturelle, Brunoy, France
| | - Méryam Taghi
- EA 4463, Faculté des Sciences Pharmaceutiques et Biologiques, Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - Valérie Nivet-Antoine
- EA 4466, Faculté des Sciences Pharmaceutiques et Biologiques, Université Paris Descartes, Sorbonne Paris Cité, Paris, France
- Service de Biochimie, AP-HP, Hôpital Européen Georges Pompidou, Paris, France
| | - Delphine Dargère
- EA 4463, Faculté des Sciences Pharmaceutiques et Biologiques, Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - Olivier Laprévote
- EA 4463, Faculté des Sciences Pharmaceutiques et Biologiques, Université Paris Descartes, Sorbonne Paris Cité, Paris, France
- Service de Toxicologie biologique, AP-HP, G.H. Lariboisière – Saint Louis – Fernand Widal, Paris, France
| | - Jean-Louis Beaudeux
- EA 4466, Faculté des Sciences Pharmaceutiques et Biologiques, Université Paris Descartes, Sorbonne Paris Cité, Paris, France
- Service de Biochimie A, G.H. Necker - Enfants malades, AP-HP, Paris, France
| | - Fabienne Aujard
- Mécanismes Adaptatifs et Evolution, UMR 7179, Centre National de la Recherche Scientifique, Muséum National d'Histoire Naturelle, Brunoy, France
| | - Jacques Epelbaum
- Centre de Psychiatrie et Neuroscience, UMR 894 Inserm, Faculté de Médecine, Université Paris Descartes, Paris, France
| | - Charles-Henry Cottart
- EA 4466, Faculté des Sciences Pharmaceutiques et Biologiques, Université Paris Descartes, Sorbonne Paris Cité, Paris, France
- Service de Biochimie A, G.H. Necker - Enfants malades, AP-HP, Paris, France
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133
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Aksenov V, Boreham D, Rollo CD. Impact of a complex nutraceutical supplement on primary tumour formation and metastasis in Trp53+/- cancer-prone mice. Mutagenesis 2014; 29:177-87. [PMID: 24531571 DOI: 10.1093/mutage/geu002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
A complex dietary supplement designed to impact multiple mechanisms associated with aging and cancer reduced overall tumorigenesis in cancer-prone heterozygous Trp53+/- mice by ~30% (P < 0.018). Carcinomas were reduced by 67% (P < 0.006). Remarkably, metastasis (a leading cause of cancer mortality) was undetectable in treated animals (P < 0.004), and the occurrence of multiple primary tumours was reduced by 74% (P < 0.012). Reduction of pulmonary adenocarcinoma by 62% (P < 0.021) was of particular note given that lung cancer is the second leading cause of death in humans. Tumours showed pronounced age-related expression in untreated animals older than 600 days. Benefits of treatment only emerged in these later ages, suggesting that the supplement acted on mechanisms common to aging and cancer. The supplement was administered daily on bagel bits that were usually eaten within minutes by the mice. Although longevity was not statistically different between treatments, longevity was strongly related to the compliance of mice in eating the supplement. Linear regression revealed a strong positive relationship between the proportion of supplement eaten and the longevity of mice within the treatment group (P < 0.0001).
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134
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Zhu F, Han J, Liu S, Chen X, Varshney RK, Liang X. Cloning, Expression Pattern Analysis and Subcellular Localization of Resveratrol Synthase Gene in Peanut (<i>Arachis hypogaea</i> L.). ACTA ACUST UNITED AC 2014. [DOI: 10.4236/ajps.2014.524378] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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135
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Nićiforović N, Abramovič H. Sinapic Acid and Its Derivatives: Natural Sources and Bioactivity. Compr Rev Food Sci Food Saf 2013; 13:34-51. [DOI: 10.1111/1541-4337.12041] [Citation(s) in RCA: 259] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2013] [Accepted: 08/22/2013] [Indexed: 12/13/2022]
Affiliation(s)
- Neda Nićiforović
- Dept. of Food Science and Technology; Biotechnical Faculty, Univ. of Ljubljana; 1000 Ljubljana Slovenia
| | - Helena Abramovič
- Dept. of Food Science and Technology; Biotechnical Faculty, Univ. of Ljubljana; 1000 Ljubljana Slovenia
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136
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Jung KH, Lee JH, Thien Quach CH, Paik JY, Oh H, Park JW, Lee EJ, Moon SH, Lee KH. Resveratrol Suppresses Cancer Cell Glucose Uptake by Targeting Reactive Oxygen Species–Mediated Hypoxia-Inducible Factor-1α Activation. J Nucl Med 2013; 54:2161-7. [DOI: 10.2967/jnumed.112.115436] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
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137
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Targeting sphingosine kinase 1 (SphK1) and apoptosis by colon-specific delivery formula of resveratrol in treatment of experimental ulcerative colitis in rats. Eur J Pharmacol 2013; 718:145-53. [PMID: 24055189 DOI: 10.1016/j.ejphar.2013.08.040] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2013] [Revised: 07/17/2013] [Accepted: 08/30/2013] [Indexed: 12/17/2022]
Abstract
Ulcerative colitis (UC) is a chronic inflammatory bowel disorder (IBD) that has an elevated risk of developing into colon cancer. In trials to develop new therapeutic alternatives for UC, it is important to fulfill modifying effects on pathogenic targets and to reach the colon in a high concentration. Thus, the current work has investigated a colon-specific delivery formula of resveratrol in targeting sphingosine kinase 1 (SphK1) and apoptotic pathways to control pathogenesis and its progression to any expected neoplasm. This work was conducted on 40 Wister albino rats equally divided into 4 groups where group I served as the normal control group. The untreated oxazolone-induced colitis in group II exhibited significant increase in SphK1 activity as well as activity of both myeloperoxidase (MPO) and caspase-3 with concomitant mild DNA fragmentation in colonic tissue. Colonic SphK1 activity showed significant positive correlation with the disease activity index (DAI) and histopathological score in this group. Comparable with treatment by the native resveratrol formula, nRes (group III), treatment by the colon-specific delivery resveratrol formula, cRes (group IV) caused significant decrease in the activity of SphK1 and MPO with massive DNA fragmentation in colonic tissue and non significant change in caspase-3 activity. The lowest DAI and histopathological score have been recorded in the group treated by the colon-specific delivery resveratrol formula. In conclusion, the anti-inflammatory and apoptotic effects of resveratrol could be attributed to its inhibitory effect on sphingosine kinase 1 (SphK1) providing a useful therapeutic tool to break the link between inflammation and carcinogenesis risk in ulcerative colitis.
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138
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Chen LK, Qiang PF, Xu QP, Zhao YH, Dai F, Zhang L. Trans-3,4,5,4'-tetramethoxystilbene, a resveratrol analog, potently inhibits angiogenesis in vitro and in vivo. Acta Pharmacol Sin 2013; 34:1174-82. [PMID: 23770989 PMCID: PMC3764339 DOI: 10.1038/aps.2013.60] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2013] [Accepted: 04/12/2013] [Indexed: 12/30/2022] Open
Abstract
Aim: Trans-3,4,5,4′-tetramethoxystilbene (DMU-212) has shown strong antiproliferative activities against a variety of cancer cells. The aim of this study was to investigate the anti-angiogenic effects of DMU-212 in vitro and in vivo. Methods: Human umbilical vein endothelial cells (HUVECs) were used in this study. Cell viability was studied with MTT assay, and cell apoptosis was evaluated using TUNEL assay and morphological observation. The expression of the related genes and proteins was analyzed with qRT-PCR and Western blot, respectively. Angiogenesis of HUVECs were studied using cell migration and capillary-like tube formation assays in vitro, and mouse Matrigel plug assay and chick chorioallantoic membrane (CAM) assay in vivo. The tyrosine kinase activities of VEGFR1 and VEGFR2 were measured using commercial kits. Results: DMU-212 (5–80 μmol/L) significantly inhibited VEGF-stimulated proliferation of HUVECs (IC50 value was approximately 20 μmol/L), and induced apoptosis. Furthermore, DMU-212 concentration-dependently inhibited VEGF-induced migration of HUVECs and capillary-like structure formation in vitro. DMU-212 also inhibited VEGF-induced generation of new vasculature in Matrigel plugs in vivo with significantly decreased area of infiltrating CD31-positive endothelial cells, and inhibited newly formed microvessels in chick CAMs. Moreover, DMU-212 concentration-dependently suppressed VEGF-induced phosphorylation of VEGFR2, and inhibited phosphorylation of multiple downstream signaling components in the VEGFR2 pathway, including c-Src, FAK, Erk1/2, Akt, mTOR, and p70S6K in HUVECs. DMU-212 had no effect on VEGF-induced phosphorylation of VEGFR1. Conclusion: DMU-212 is a potent inhibitor of angiogenesis that exerts anti-angiogenic activity at least in part through the VEGFR2 signaling pathway.
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139
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Highly efficient biotransformation of polydatin to resveratrol by snailase hydrolysis using response surface methodology optimization. Molecules 2013; 18:9717-26. [PMID: 23945645 PMCID: PMC6270649 DOI: 10.3390/molecules18089717] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2013] [Revised: 07/15/2013] [Accepted: 07/16/2013] [Indexed: 01/01/2023] Open
Abstract
Resveratrol (RV), a dietary antioxidant polyphenolic compound found in grapes and red wine, exerts a wide variety of pharmacological activities. However, lower content in plants compared with polydatin (PD, the glucoside of RV) limits its application in the food and pharmaceutical industries. In this paper, we carried out efficient biotransformation of PD to RV with 100% conversion yield by snailase hydrolysis. Moreover, response surface methodology (RSM) was used to optimize the effects of the reaction temperature, enzyme load, and reaction time on the conversion process. Validation of the RSM model was verified by the good agreement between the experimental and the predicted RV yield values. The optimum preparation conditions were as follows: temperature of 62.0 °C, enzyme load of 6.6%, and reaction time of 96 min. The proposed method may be highly applicable for the enzymatic preparation of RV for medicinal purposes.
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140
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Mattarei A, Azzolini M, Carraro M, Sassi N, Zoratti M, Paradisi C, Biasutto L. Acetal derivatives as prodrugs of resveratrol. Mol Pharm 2013; 10:2781-92. [PMID: 23772980 DOI: 10.1021/mp400226p] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The pharmacological exploitation of resveratrol is hindered by rapid phase-II conjugative metabolism in enterocytes and hepatocytes. One approach to the solution of this problem relies on prodrugs. We report the synthesis and characterization as well as the assessment of in vivo absorption and metabolism of a set of prodrugs of resveratrol in which the OH groups are engaged in the formal (-OCH2OR) or the more labile acetal (-OCH(CH3)OR) linkages. As carrier group (R) of the prodrug, we have used short ethyleneglycol oligomers (OEG) capped by a terminal methoxy group: -O-(CH2CH2O)n-CH3 (n = 0, 1, 2, 3, 4, 6). These moieties are expected to exhibit, to a degree, the favorable properties of longer polyethyleneglycol (PEG) chains, while their relatively small size makes for a more favorable drug loading capacity. After administration of formal-based prodrugs to rats by oral gavage, significant concentrations of derivatives were measured in blood samples over several hours, in all cases except for n = 0. Absorption was maximal for n = 4. Complete deprotection to give resveratrol and its metabolites was however too slow to be of practical use. Administration of the acetal prodrug carrying tetrameric OEG chains resulted instead in the protracted presence of resveratrol metabolites in blood, consistent with a progressive regeneration of the parent molecule from the prodrug after its absorption. The results suggest that prodrugs of polyphenols based on the acetal bond and short ethyleneglycol oligomers of homogeneous size may be a convenient tool for the systemic delivery of the unconjugated parent compound.
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Affiliation(s)
- Andrea Mattarei
- CNR Institute of Neuroscience , viale G. Colombo 3, 35121 Padova, Italy
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141
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Silva I, R. Teixeir M, L. Lang K, R. Guimara TD, E. Dudek S, J. Duran F, Ludwig S, S.B. Caro M, P. Schenke E, M.O. Simoe C. Proliferative Inhibition and Apoptotic Mechanism on Human Non-small-cell
Lung Cancer (A549 Cells) of a Novel Cucurbitacin from Wilbrandia ebracteata
Cogn. ACTA ACUST UNITED AC 2013. [DOI: 10.3923/ijcr.2013.54.68] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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142
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Polycarpou E, Meira LB, Carrington S, Tyrrell E, Modjtahedi H, Carew MA. Resveratrol 3-O-D-glucuronide and resveratrol 4'-O-D-glucuronide inhibit colon cancer cell growth: evidence for a role of A3 adenosine receptors, cyclin D1 depletion, and G1 cell cycle arrest. Mol Nutr Food Res 2013; 57:1708-17. [PMID: 23650147 DOI: 10.1002/mnfr.201200742] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2012] [Revised: 02/07/2013] [Accepted: 02/19/2013] [Indexed: 01/09/2023]
Abstract
SCOPE Resveratrol is a plant-derived polyphenol with chemotherapeutic properties in animal cancer models and many biochemical effects in vitro. Its bioavailability is low and raises the possibility that the metabolites of resveratrol have biological effects. Here we investigate the actions of resveratrol 3-O-D-glucuronide, resveratrol 4-O-D-glucuronide, and resveratrol 3-O-Dsulfate on the growth of colon cancer cells in vitro. METHODS AND RESULTS The growth of Caco-2, HCT-116, and CCL-228 cells was measured using the neutral red and MTT assays. Resveratrol and each metabolite inhibited cell growth with IC50 values of 9.8–31 μM. Resveratrol caused S phase arrest in all three cell lines. Resveratrol 3-O-D-glucuronide and resveratrol 4-O-D-glucuronide caused G1 arrest in CCL-228 and Caco-2 cells. Resveratrol 3-O-D-sulfate had no effect on cell cycle. Growth inhibition was reversed by an inhibitor of AMP-activated protein kinase (compound C) or an adenosine A3 receptor antagonist (MRS1191). The A3 receptor agonist 2Cl-IB-MECA inhibited growth and A3 receptors were detected in all cell lines. The resveratrol glucuronides also reduced cyclin D1 levels but at higher concentrations than in growth experiments and generally did not increase phosphorylated AMP-activated protein kinase. CONCLUSION Resveratrol glucuronides inhibit cell growth by G1 arrest and cyclin D1 depletion, and our results strongly suggest a role for A3 adenosine receptors in this inhibition.
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Affiliation(s)
- Elena Polycarpou
- School of Pharmacy and Chemistry, Kingston University, Kingston upon Thames, UK
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143
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Luis Espinoza J, Takami A, Trung LQ, Nakao S. Ataxia-telangiectasia mutated kinase-mediated upregulation of NKG2D ligands on leukemia cells by resveratrol results in enhanced natural killer cell susceptibility. Cancer Sci 2013; 104:657-62. [PMID: 23445485 DOI: 10.1111/cas.12141] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2012] [Revised: 02/13/2013] [Accepted: 02/16/2013] [Indexed: 12/29/2022] Open
Abstract
The powerful activating receptor NKG2D is expressed by natural killer (NK) cells and promotes cytotoxic lysis of cancer cells expressing NKG2D ligands (NKG2D-Ls). We report the effective induction of NKG2D-Ls, achieved with the naturally occurring polyphenol resveratrol, in a broad range of leukemia cells. In this study, resveratrol upregulated the NKG2D-Ls MHC class I chain-related proteins MICA and MICB, and UL16-binding proteins ULBP1, ULBP2, and ULBP3 in most of the leukemia cells analyzed. Ligand upregulation induced by resveratrol was impaired by pharmacological and genetic disruption of ataxia-telangiectasia mutated kinase, the main regulator of NKG2D-L expression. Leukemia cells treated with resveratrol were more susceptible to killing by NK cells than untreated cells, and the enhanced cytotoxicity of NK cells was blocked by treatment of NK cells with anti-NKG2D mAbs. Interestingly, resveratrol consistently upregulated the NKG2D receptor expression and enhanced NKG2D-mediated functions in resting NK cells obtained from healthy individuals. Therefore, resveratrol has attractive immunotherapeutic potential.
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Affiliation(s)
- J Luis Espinoza
- Department of Hematology and Oncology, Kanazawa University Hospital, Kanazawa, Japan
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144
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Sheu SY, Chen WS, Sun JS, Lin FH, Wu T. Biological characterization of oxidized hyaluronic acid/resveratrol hydrogel for cartilage tissue engineering. J Biomed Mater Res A 2013; 101:3457-66. [DOI: 10.1002/jbm.a.34653] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2012] [Revised: 01/17/2013] [Accepted: 01/28/2013] [Indexed: 01/12/2023]
Affiliation(s)
- Shiow-Yunn Sheu
- School of Pharmacy; College of Pharmacy; Taipei Medical University; No. 250, Wusing St. Sinyi District, Taipei City 11031 Taiwan Republic of China
| | - Wen-Shan Chen
- School of Pharmacy; College of Pharmacy; Taipei Medical University; No. 250, Wusing St. Sinyi District, Taipei City 11031 Taiwan Republic of China
| | - Jui-Sheng Sun
- Graduate Institute of Clinical Medicine; College of Medicine; Taipei Medical University; No. 250, Wusing St. Sinyi District, Taipei City 11031 Taiwan Republic of China
- Department of Orthopedic Surgery; National Taiwan University Hospital Hsin-Chu Branch; No. 25, Lane 442, Sec. 1, Jingguo Rd. Hsin-Chu City 30059 Taiwan Republic of China
| | - Feng-Huei Lin
- Institute of Biomedical Engineering; National Taiwan University; No. 1, Ren-Ai Rd. Taipei 10051 Taiwan Republic of China
| | - Tuoh Wu
- Department of Orthopedic Surgery; National Taiwan University Hospital Hsin-Chu Branch; No. 25, Lane 442, Sec. 1, Jingguo Rd. Hsin-Chu City 30059 Taiwan Republic of China
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145
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Gulvady AA, Ciolino HP, Cabrera RM, Jolly CA. Resveratrol inhibits the deleterious effects of diet-induced obesity on thymic function. J Nutr Biochem 2013; 24:1625-33. [PMID: 23561698 DOI: 10.1016/j.jnutbio.2013.02.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2012] [Revised: 02/01/2013] [Accepted: 02/05/2013] [Indexed: 01/06/2023]
Abstract
Obesity is associated with an increased risk of infectious diseases. It has been shown to have deleterious effects on cell-mediated immunity, including reducing thymocyte numbers and altering responses of thymocytes to pathogens. In the current study, we examined the efficacy of the antiobesity phytochemical resveratrol in preventing the deleterious effects of a high-fat diet on thymic anatomy and function. Compared to C57Bl/6 male mice fed a low-fat diet, mice on a high-fat diet had a significant increase in thymic weight and lipid content, and a disrupted anatomy, including a reduction of the medullary compartment and absence of a corticomedullary junction. There were a decrease in thymic cellularity and mature T-cell output, and a disrupted T-cell maturation, as evidenced by increased double-negative and decreased single- and double-positive thymocytes. Mice that had been fed resveratrol along with a high-fat diet had a dose-dependent reversal in all these parameters. Western blots from thymi showed that obese mice had lower levels of the key stimulators of lipid metabolism, phospho-5' adenosine monophosphate-activated protein kinase and its downstream target, carnitine palmitoyl transferase-1; this was restored to normal levels in resveratrol-fed mice. Resveratrol also reversed an increase in glycerol-3-phosphate acyltransferase-1, the enzyme that catalyzes the first step in triglycerol synthesis. Taken together, these results indicate that resveratrol is a potent inhibitor of the deleterious effects of diet-induced obesity on thymic anatomy and function, and this may hold promise in preventing obesity-related deficits in cell-mediated immunity.
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Affiliation(s)
- Apeksha A Gulvady
- Department of Nutritional Sciences, Dell Pediatric Research Institute, The University of Texas at Austin, Austin, TX 78723, USA
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146
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Mak KK, Wu ATH, Lee WH, Chang TC, Chiou JF, Wang LS, Wu CH, Huang CYF, Shieh YS, Chao TY, Ho CT, Yen GC, Yeh CT. Pterostilbene, a bioactive component of blueberries, suppresses the generation of breast cancer stem cells within tumor microenvironment and metastasis via modulating NF-κB/microRNA 448 circuit. Mol Nutr Food Res 2013; 57:1123-34. [DOI: 10.1002/mnfr.201200549] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2012] [Revised: 12/16/2012] [Accepted: 01/10/2013] [Indexed: 11/08/2022]
Affiliation(s)
- Ka-Kit Mak
- Graduate Institute of Clinical Medicine; Taipei Medical University; Taipei Taiwan
| | - Alexander T. H. Wu
- Ph.D. Program for Translational Medicine, College of Medical Science and Technology; Taipei Medical University; Taipei Taiwan
- Translational Research Laboratory, Cancer Center; Taipei Medical University Hospital; Taipei Taiwan
| | - Wei-Hwa Lee
- Department of Pathology, Shuang Ho Hospital; Taipei Medical University; Taipei Taiwan
| | - Tung-Cheng Chang
- Graduate Institute of Clinical Medicine; Taipei Medical University; Taipei Taiwan
- Department of Surgery; Taipei Medical University-Shuang Ho Hospital; Taipei Taiwan
| | - Jeng-Fong Chiou
- Translational Research Laboratory, Cancer Center; Taipei Medical University Hospital; Taipei Taiwan
- Department of Radiology, School of Medicine, College of Medicine; Taipei Medical University; Taiwan
| | - Liang-Shun Wang
- Graduate Institute of Clinical Medicine; Taipei Medical University; Taipei Taiwan
- Division of Thoracic Surgery, Department of Surgery; Taipei Medical University-Shuang Ho Hospital; Taipei Taiwan
| | - Chih-Hsiung Wu
- Department of Surgery; Taipei Medical University-Shuang Ho Hospital; Taipei Taiwan
| | - Chi-Ying F. Huang
- Institute of Clinical Medicine; National Yang-Ming University; Taipei Taiwan
- Institute of Biopharmaceutical Sciences; National Yang-Ming University; Taipei Taiwan
| | - Yi-Shing Shieh
- Department of Oral Diagnosis, Tri-Service General Hospital; National Defense Medical Center; Taipei Taiwan
| | - Tsu-Yi Chao
- Graduate Institute of Clinical Medicine; Taipei Medical University; Taipei Taiwan
- Department of Surgery; Taipei Medical University-Shuang Ho Hospital; Taipei Taiwan
| | - Chi-Tang Ho
- Department of Food Science; Rutgers University; New Brunswick NJ USA
| | - Gow-Chin Yen
- Department of Food Science and Biotechnology; National Chung Hsing University; Taichung Taiwan
- Agricultural Biotechnology Center; National Chung Hsing University; Taichung Taiwan
| | - Chi-Tai Yeh
- Graduate Institute of Clinical Medicine; Taipei Medical University; Taipei Taiwan
- Department of Surgery; Taipei Medical University-Shuang Ho Hospital; Taipei Taiwan
- Graduate Institute of Medical Sciences; National Defense Medical Center; Taipei Taiwan
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147
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Sheu JN, Liao WC, Wu UI, Shyu LY, Mai FD, Chen LY, Chen MJ, Youn SC, Chang HM. Resveratrol suppresses calcium-mediated microglial activation and rescues hippocampal neurons of adult rats following acute bacterial meningitis. Comp Immunol Microbiol Infect Dis 2013; 36:137-48. [DOI: 10.1016/j.cimid.2012.11.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2012] [Revised: 11/02/2012] [Accepted: 11/19/2012] [Indexed: 01/03/2023]
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148
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Azastilbene analogs as tyrosinase inhibitors: new molecules with depigmenting potential. ScientificWorldJournal 2013; 2013:274643. [PMID: 23476126 PMCID: PMC3583142 DOI: 10.1155/2013/274643] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2012] [Accepted: 01/14/2013] [Indexed: 12/20/2022] Open
Abstract
This research has been an effort to develop synthetic resveratrol analogs in order to improve the depigmenting potential of natural resveratrol. Six resveratrol analogs were synthesized and tested for tyrosinase inhibitory activity in vitro, by qualitative and quantitative steps. The results showed the analog C as being the most powerful tyrosinase inhibitor (IA50=65.67±0.60 μg/mL), followed by the analogs B, E, F, A, and D, respectively. The analog C presented a tyrosinase inhibition potential better than natural resveratrol (P<0.001). The best depigmenting activity was provided by the presence of hydroxyl in the orthoposition on the second phenolic ring.
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149
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Koller VJ, Dirsch VM, Beres H, Donath O, Reznicek G, Lubitz W, Kudela P. Modulation of bacterial ghosts--induced nitric oxide production in macrophages by bacterial ghost-delivered resveratrol. FEBS J 2013; 280:1214-25. [PMID: 23289719 DOI: 10.1111/febs.12112] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2012] [Revised: 12/18/2012] [Accepted: 01/01/2013] [Indexed: 12/17/2022]
Abstract
The present study aimed to investigate the capacity of resveratrol (RV) delivered into macrophages by bacterial ghosts (BGs), representing intact empty nonliving envelopes of Gram-negative bacteria, to modulate nitric oxide (NO) production related to the presence of the pathogen-associated molecular patterns on the surface of BGs. Incubation of the murine macrophage cell line RAW 264.7 with BGs leads to a dose-dependent activation of inducible NO synthase. To modify BG-induced NO formation in RAW 264.7 cells by RV; BGs were loaded with RV (RV-BGs) and incubated with murine macrophages in a dose-dependent manner. RV-BGs delivering RV to the target macrophages significantly reduced BG-induced NO production with concentration of RV more than one order of magnitude lower than the amount of RV capable of reducing NO formation when applied directly. Moreover, no cytotoxic impact of BGs on the viability of RAW 264.7 cells added to macrophages alone or loaded with RV was detected after a mutual 24 h incubation, whereas cell viability slightly decreased (~ 10%) when RV concentrations of 30 μm alone were applied. The results obtained in the present study clearly indicate that the intracellular delivery of RV by BGs significantly enhances the total RV effect.
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Affiliation(s)
- Verena J Koller
- Department of Medicinal Chemistry, University of Vienna, Vienna, Austria
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150
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Stakleff KS, Sloan T, Blanco D, Marcanthony S, Booth TD, Bishayee A. Resveratrol exerts differential effects in vitro and in vivo against ovarian cancer cells. Asian Pac J Cancer Prev 2013; 13:1333-40. [PMID: 22799328 DOI: 10.7314/apjcp.2012.13.4.1333] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Epithelial ovarian cancer represents the most lethal gynecological cancer, and the high mortality rate makes this malignancy a major health concern. Poor prognosis results from an inability to detect ovarian cancers at an early, curable stage, as well as from the lack of an effective therapy. Thus, effective and novel strategies for prevention and treatment with non-toxic agents merit serious consideration. Resveratrol, obtained from grapes, berries, peanuts and red wine, has been shown to have a potent growth-inhibitory effect against various human cancer cells as well as in in vivo preclinical cancer models. The objective here was to evaluate potential antitumor effects of resveratrol in both in vitro and in vivo NuTu-19 ovarian cancer models. In vitro an invasion assay was performed. After 48 h, the numbers of viable cells that invaded the extracellular matrix layer were reduced by 94% with resveratrol in comparison to control. For the in vivo anti-tumor assessment, 10 rats were injected with NuTu-19 cells into the ovarian bursa. Thereafter, half were provided with a diet mixed with a dose of 100 mg resveratrol/kg body weight/day for 28 days. Following sacrifice, anticancer effects were assessed by histological evaluation of ovarian as well as surrounding tissues, and immunohistochemical detection of cell proliferation and apoptosis, but there were no observable differences between the control and resveratrol-treated groups for any of the biological endpoints. While resveratrol is effective in suppressing the in vitro cellular invasion of NuTu-19 ovarian cancer cells, these effects do not appear to impact on in vivo NuTu-19 ovarian cancers in rats.
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