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Michl C, Vivarelli F, Weigl J, De Nicola GR, Canistro D, Paolini M, Iori R, Rascle A. The Chemopreventive Phytochemical Moringin Isolated from Moringa oleifera Seeds Inhibits JAK/STAT Signaling. PLoS One 2016; 11:e0157430. [PMID: 27304884 PMCID: PMC4909285 DOI: 10.1371/journal.pone.0157430] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2016] [Accepted: 05/31/2016] [Indexed: 11/19/2022] Open
Abstract
Sulforaphane (SFN) and moringin (GMG-ITC) are edible isothiocyanates present as glucosinolate precursors in cruciferous vegetables and in the plant Moringa oleifera respectively, and recognized for their chemopreventive and medicinal properties. In contrast to the well-studied SFN, little is known about the molecular pathways targeted by GMG-ITC. We investigated the ability of GMG-ITC to inhibit essential signaling pathways that are frequently upregulated in cancer and immune disorders, such as JAK/STAT and NF-κB. We report for the first time that, similarly to SFN, GMG-ITC in the nanomolar range suppresses IL-3-induced expression of STAT5 target genes. GMG-ITC, like SFN, does not inhibit STAT5 phosphorylation, suggesting a downstream inhibitory event. Interestingly, treatment with GMG-ITC or SFN had a limited inhibitory effect on IFNα-induced STAT1 and STAT2 activity, indicating that both isothiocyanates differentially target JAK/STAT signaling pathways. Furthermore, we showed that GMG-ITC in the micromolar range is a more potent inhibitor of TNF-induced NF-κB activity than SFN. Finally, using a cellular system mimicking constitutive active STAT5-induced cell transformation, we demonstrated that SFN can reverse the survival and growth advantage mediated by oncogenic STAT5 and triggers cell death, therefore providing experimental evidence of a cancer chemopreventive activity of SFN. This work thus identified STAT5, and to a lesser extent STAT1/STAT2, as novel targets of moringin. It also contributes to a better understanding of the biological activities of the dietary isothiocyanates GMG-ITC and SFN and further supports their apparent beneficial role in the prevention of chronic illnesses such as cancer, inflammatory diseases and immune disorders.
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Affiliation(s)
- Carina Michl
- Stat5 Signaling Research Group, Institute of Immunology, University of Regensburg, Regensburg, Germany
| | - Fabio Vivarelli
- Stat5 Signaling Research Group, Institute of Immunology, University of Regensburg, Regensburg, Germany
- Molecular toxicology unit, Department of Pharmacy and Biotechnology, University of Bologna, Bologna, Italy
| | - Julia Weigl
- Stat5 Signaling Research Group, Institute of Immunology, University of Regensburg, Regensburg, Germany
| | - Gina Rosalinda De Nicola
- Consiglio per la ricerca in agricoltura e l'analisi dell'economia agraria, Centro di ricerca per le colture industriali (CREA-CIN), Bologna, Italy
| | - Donatella Canistro
- Molecular toxicology unit, Department of Pharmacy and Biotechnology, University of Bologna, Bologna, Italy
| | - Moreno Paolini
- Molecular toxicology unit, Department of Pharmacy and Biotechnology, University of Bologna, Bologna, Italy
| | - Renato Iori
- Consiglio per la ricerca in agricoltura e l'analisi dell'economia agraria, Centro di ricerca per le colture industriali (CREA-CIN), Bologna, Italy
| | - Anne Rascle
- Stat5 Signaling Research Group, Institute of Immunology, University of Regensburg, Regensburg, Germany
- * E-mail:
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52
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Zheng H, Chen Y, Zhang J, Wang L, Jin Z, Huang H, Man S, Gao W. Evaluation of protective effects of costunolide and dehydrocostuslactone on ethanol-induced gastric ulcer in mice based on multi-pathway regulation. Chem Biol Interact 2016; 250:68-77. [PMID: 26970604 DOI: 10.1016/j.cbi.2016.03.003] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2015] [Revised: 02/22/2016] [Accepted: 03/01/2016] [Indexed: 10/22/2022]
Abstract
The aim of the present study was to evaluate the anti-ulcerogenic activity of costunolide (Co) and dehydrocostuslactone (De) on ethanol-induced gastric ulcer in mice and to elucidate the potential mechanisms of the action involved. Mice were pretreated orally with Co (5 or 20 mg/kg), De (5 or 20 mg/kg) and omeprazole (OME, 20 mg/kg) for 7 consecutive days, followed by ulcer induction using absolute ethanol (0.2 mL/20 g body weight). Treatment with Co had a remarkable gastroprotection compared to the ethanol-ulcerated mice that significantly reduced the ulcerative lesion index (ULI) and histopathological damage. Daily intragastric administration of Co exerted a powerful anti-inflammatory activity as evidenced by the suppression of nuclear factor (NF)-κB, tumor necrosis factor (TNF)-α, nitric oxide (NO), inducible nitric oxide synthase (iNOS), cyclooxygenase (COX)-2, as well as increased interleukin (IL)-10. Also, pretreatment with Co effectively inhibited ethanol-induced malondialdehyde (MDA) overproduction, increased the depleted superoxide dismutase (SOD) and promoted gastric mucosa epithelial cell proliferation by up-regulating proliferating cell nuclear antigen (PCNA) expression. Similarly, De had a protective effect on ethanol-induced ulcer, which was dependent on the inhibition of inflammatory cytokines and MDA generation, but independent of IL-10, SOD and PCNA improvement. Conclusively, the results have clearly demonstrated the anti-ulcerogenic potential of Co and De on ethanol-induced gastric ulcer; nevertheless, the gastroprotective activity of Co was superior to De due to more multi-pathway regulation than De. These findings suggested that Co or De could be a new useful natural gastroprotective tool against gastric ulcer, which provided a scientific basis for the gastroprotection of sesquiterpene lactones.
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Affiliation(s)
- Hong Zheng
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Yuling Chen
- Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China
| | - Jingze Zhang
- Special Drugs R & D Center of People's Armed Police Forces, Department of Pharmacy, Logistics University of Chinese People's Armed Police Forces, Tianjin 300162, China
| | - Lei Wang
- Tianjin Lerentang Pharmaceutical Factory, Tianjin Zhongxin Pharmaceutical Group Co., Ltd., Tianjin 300380, China
| | - Zhaoxiang Jin
- Tianjin Lerentang Pharmaceutical Factory, Tianjin Zhongxin Pharmaceutical Group Co., Ltd., Tianjin 300380, China
| | - Hanhan Huang
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Shuli Man
- College of Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China
| | - Wenyuan Gao
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China.
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53
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Heiss EH, Liu R, Waltenberger B, Khan S, Schachner D, Kollmann P, Zimmermann K, Cabaravdic M, Uhrin P, Stuppner H, Breuss JM, Atanasov AG, Dirsch VM. Plumericin inhibits proliferation of vascular smooth muscle cells by blocking STAT3 signaling via S-glutathionylation. Sci Rep 2016; 6:20771. [PMID: 26858089 PMCID: PMC4746734 DOI: 10.1038/srep20771] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Accepted: 01/12/2016] [Indexed: 01/21/2023] Open
Abstract
The etiology of atherosclerosis and restenosis involves aberrant inflammation and proliferation, rendering compounds with both anti-inflammatory and anti-mitogenic properties as promising candidates for combatting vascular diseases. A recent study identified the iridoid plumericin as a new scaffold inhibitor of the pro-inflammatory NF-κB pathway in endothelial cells. We here examined the impact of plumericin on the proliferation of primary vascular smooth muscle cells (VSMC). Plumericin inhibited serum-stimulated proliferation of rat VSMC. It arrested VSMC in the G1/G0-phase of the cell cycle accompanied by abrogated cyclin D1 expression and hindered Ser 807/811-phosphorylation of retinoblastoma protein. Transient depletion of glutathione by the electrophilic plumericin led to S-glutathionylation as well as hampered Tyr705-phosphorylation and activation of the transcription factor signal transducer and activator of transcription 3 (Stat3). Exogenous addition of glutathione markedly prevented this inhibitory effect of plumericin on Stat3. It also overcame downregulation of cyclin D1 expression and the reduction of biomass increase upon serum exposure. This study revealed an anti-proliferative property of plumericin towards VSMC which depends on plumericin's thiol reactivity and S-glutathionylation of Stat3. Hence, plumericin, by targeting at least two culprits of vascular dysfunction -inflammation and smooth muscle cell proliferation -might become a promising electrophilic lead compound for vascular disease therapy.
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Affiliation(s)
- Elke H Heiss
- Department of Pharmacognosy, University of Vienna, Althanstrasse 14, 1090 Vienna, Austria
| | - Rongxia Liu
- Department of Pharmacognosy, University of Vienna, Althanstrasse 14, 1090 Vienna, Austria
| | - Birgit Waltenberger
- Institute of Pharmacy (Pharmacognosy) and Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, Innsbruck, Austria
| | - Shafaat Khan
- Center for Physiology and Pharmacology, Institute for Vascular Biology and Thrombosis Research, Medical University of Vienna, Vienna, Austria.,Department of Zoology, University of Sargodha, Sargodha, Pakistan
| | - Daniel Schachner
- Department of Pharmacognosy, University of Vienna, Althanstrasse 14, 1090 Vienna, Austria
| | - Paul Kollmann
- Department of Pharmacognosy, University of Vienna, Althanstrasse 14, 1090 Vienna, Austria
| | - Kristin Zimmermann
- Department of Pharmacognosy, University of Vienna, Althanstrasse 14, 1090 Vienna, Austria
| | - Muris Cabaravdic
- Center for Physiology and Pharmacology, Institute for Vascular Biology and Thrombosis Research, Medical University of Vienna, Vienna, Austria
| | - Pavel Uhrin
- Center for Physiology and Pharmacology, Institute for Vascular Biology and Thrombosis Research, Medical University of Vienna, Vienna, Austria
| | - Hermann Stuppner
- Institute of Pharmacy (Pharmacognosy) and Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, Innsbruck, Austria
| | - Johannes M Breuss
- Center for Physiology and Pharmacology, Institute for Vascular Biology and Thrombosis Research, Medical University of Vienna, Vienna, Austria
| | - Atanas G Atanasov
- Department of Pharmacognosy, University of Vienna, Althanstrasse 14, 1090 Vienna, Austria
| | - Verena M Dirsch
- Department of Pharmacognosy, University of Vienna, Althanstrasse 14, 1090 Vienna, Austria
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54
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Chen Y, Zheng H, Zhang J, Wang L, Jin Z, Gao W. Reparative activity of costunolide and dehydrocostus in a mouse model of 5-fluorouracil-induced intestinal mucositis. RSC Adv 2016. [DOI: 10.1039/c5ra22371g] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The aim of the study was to investigate the protective effects of costunolide (Co) and dehydrocostus (De) in 5-fluorouracil (5-FU)-induced intestinal mucositis (IM) as well as the potential mechanisms involved.
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Affiliation(s)
- Yuling Chen
- Tianjin University of Traditional Chinese Medicine
- Tianjin 300193
- China
| | - Hong Zheng
- School of Pharmaceutical Science and Technology
- Tianjin University
- Tianjin 300072
- China
| | - Jingze Zhang
- Department of Pharmacy
- Logistics University of Chinese People's Armed Police Forces
- Special Drugs R & D Center of People's Armed Police Forces
- Tianjin 300162
- China
| | - Lei Wang
- Tianjin Lerentang Pharmaceutical Factory
- Tianjin Zhongxin Pharmaceutical Group Co., Ltd
- Tianjin 300380
- China
| | - Zhaoxiang Jin
- Tianjin Lerentang Pharmaceutical Factory
- Tianjin Zhongxin Pharmaceutical Group Co., Ltd
- Tianjin 300380
- China
| | - Wenyuan Gao
- School of Pharmaceutical Science and Technology
- Tianjin University
- Tianjin 300072
- China
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55
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Identification of small molecule inhibitors of the STAT3 signaling pathway: Insights into their structural features and mode of action. Bioorg Med Chem Lett 2015; 25:5444-8. [DOI: 10.1016/j.bmcl.2015.07.063] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Revised: 07/18/2015] [Accepted: 07/21/2015] [Indexed: 01/01/2023]
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56
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Lin X, Peng Z, Su C. Potential anti-cancer activities and mechanisms of costunolide and dehydrocostuslactone. Int J Mol Sci 2015; 16:10888-906. [PMID: 25984608 PMCID: PMC4463681 DOI: 10.3390/ijms160510888] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2015] [Revised: 04/10/2015] [Accepted: 04/22/2015] [Indexed: 12/31/2022] Open
Abstract
Costunolide (CE) and dehydrocostuslactone (DE) are derived from many species of medicinal plants, such as Saussurea lappa Decne and Laurus nobilis L. They have been reported for their wide spectrum of biological effects, including anti-inflammatory, anticancer, antiviral, antimicrobial, antifungal, antioxidant, antidiabetic, antiulcer, and anthelmintic activities. In recent years, they have caused extensive interest in researchers due to their potential anti-cancer activities for various types of cancer, and their anti-cancer mechanisms, including causing cell cycle arrest, inducing apoptosis and differentiation, promoting the aggregation of microtubule protein, inhibiting the activity of telomerase, inhibiting metastasis and invasion, reversing multidrug resistance, restraining angiogenesis has been studied. This review will summarize anti-cancer activities and associated molecular mechanisms of these two compounds for the purpose of promoting their research and application.
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Affiliation(s)
- Xuejing Lin
- Department of Molecular Oncology, Eastern Hepatobiliary Surgical Hospital & National Center of Liver Cancer, Second Military Medical University, Shanghai 200438, China.
| | - Zhangxiao Peng
- Department of Molecular Oncology, Eastern Hepatobiliary Surgical Hospital & National Center of Liver Cancer, Second Military Medical University, Shanghai 200438, China.
| | - Changqing Su
- Department of Molecular Oncology, Eastern Hepatobiliary Surgical Hospital & National Center of Liver Cancer, Second Military Medical University, Shanghai 200438, China.
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57
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Tahtouh R, Azzi AS, Alaaeddine N, Chamat S, Bouharoun-Tayoun H, Wardi L, Raad I, Sarkis R, Antoun NA, Hilal G. Telomerase inhibition decreases alpha-fetoprotein expression and secretion by hepatocellular carcinoma cell lines: in vitro and in vivo study. PLoS One 2015; 10:e0119512. [PMID: 25822740 PMCID: PMC4379025 DOI: 10.1371/journal.pone.0119512] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2014] [Accepted: 01/13/2015] [Indexed: 12/13/2022] Open
Abstract
Alpha-fetoprotein (AFP) is a diagnostic marker for hepatocellular carcinoma (HCC). A direct relationship between poor prognosis and the concentration of serum AFP has been observed. Telomerase, an enzyme that stabilizes the telomere length, is expressed by 90% of HCC. The aim of this study was to investigate the effect of telomerase inhibition on AFP secretion and the involvement of the PI3K/Akt/mTOR signaling pathway. Proliferation and viability tests were performed using tetrazolium salt. Apoptosis was determined through the Annexin V assay using flow cytometry. The concentrations of AFP were measured using ELISA kits. The AFP mRNA expression was evaluated using RT-PCR, and cell migration was evaluated using a Boyden chamber assay. The in vivo effect of costunolide on AFP production was tested in NSG mice. Telomerase inhibition by costunolide and BIBR 1532 at 5 and 10 μM decreased AFP mRNA expression and protein secretion by HepG2/C3A cells. The same pattern was obtained with cells treated with hTERT siRNA. This treatment exhibited no apoptotic effect. The AFP mRNA expression and protein secretion by PLC/PRF/5 was decreased after treatment with BIBR1532 at 10 μM. In contrast, no effect was obtained for PLC/PRF/5 cells treated with costunolide at 5 or 10 μM. Inhibition of the PI3K/Akt/mTOR signaling pathway decreased the AFP concentration. In contrast, the MAPK/ERK pathway appeared to not be involved in HepG2/C3A cells, whereas ERK inhibition decreased the AFP concentration in PLC/PRF/5 cells. Modulation of the AFP concentration was also obtained after the inhibition or activation of PKC. Costunolide (30 mg/kg) significantly decreased the AFP serum concentration of NSG mice bearing HepG2/C3A cells. Both the inhibition of telomerase and the inhibition of the PI3K/Akt/mTOR signaling pathway decreased the AFP production of HepG2/C3A and PLC/PRF/5 cells, suggesting a relationship between telomerase and AFP expression through the PI3K/Akt/mTOR pathway.
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MESH Headings
- Aminobenzoates/pharmacology
- Animals
- Apoptosis/drug effects
- Carcinoma, Hepatocellular/drug therapy
- Carcinoma, Hepatocellular/metabolism
- Carcinoma, Hepatocellular/pathology
- Cell Line, Tumor
- Cell Movement/drug effects
- Enzyme Inhibitors/pharmacology
- Hep G2 Cells
- Humans
- Liver Neoplasms/drug therapy
- Liver Neoplasms/metabolism
- Liver Neoplasms/pathology
- Male
- Mice
- Mice, Inbred NOD
- Mice, SCID
- Naphthalenes/pharmacology
- Neoplasm Invasiveness/pathology
- Neoplasm Invasiveness/prevention & control
- Phosphatidylinositol 3-Kinases/metabolism
- Proto-Oncogene Proteins c-akt/metabolism
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- RNA, Neoplasm/genetics
- RNA, Neoplasm/metabolism
- RNA, Small Interfering/genetics
- Sesquiterpenes/pharmacology
- Signal Transduction/drug effects
- TOR Serine-Threonine Kinases/metabolism
- Telomerase/antagonists & inhibitors
- Telomerase/genetics
- Xenograft Model Antitumor Assays
- alpha-Fetoproteins/genetics
- alpha-Fetoproteins/metabolism
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Affiliation(s)
- Roula Tahtouh
- Cancer and Metabolism Laboratory, Faculty of Medicine, Saint-Joseph University, Beirut, Lebanon
| | - Anne-Sophie Azzi
- Cancer and Metabolism Laboratory, Faculty of Medicine, Saint-Joseph University, Beirut, Lebanon
| | - Nada Alaaeddine
- Regenerative Medicine Laboratory, Faculty of Medicine, Saint-Joseph University, Beirut, Lebanon
| | - Soulaima Chamat
- Faculty of Health Sciences, Lebanese University, Fanar, Lebanon
| | | | - Layal Wardi
- Cancer and Metabolism Laboratory, Faculty of Medicine, Saint-Joseph University, Beirut, Lebanon
| | - Issam Raad
- Department of Infectious Diseases, the University of Texas M. D. Anderson Cancer Center, Houston, Texas, United States of America
| | - Riad Sarkis
- Faculty of Medicine, Saint-Joseph University and Hotel-Dieu de France, Surgery Department, Beirut, Lebanon
| | | | - George Hilal
- Cancer and Metabolism Laboratory, Faculty of Medicine, Saint-Joseph University, Beirut, Lebanon
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58
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Design, synthesis and biological evaluation of novel sesquiterpene mustards as potential anticancer agents. Eur J Med Chem 2015; 94:284-97. [PMID: 25771034 DOI: 10.1016/j.ejmech.2015.03.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2014] [Revised: 01/17/2015] [Accepted: 03/01/2015] [Indexed: 02/03/2023]
Abstract
Several novel series of sesquiterpene mustards (SMs) bearing nitrogen mustard and glutathione (GSH)-reactive α-methylene-γ-butyrolactone groups were successfully prepared for the first time and showed excellent antiproliferative activities in vitro. Among them, compounds 2e and 2g displayed the highest antiproliferative properties with IC50 values ranging from 2.5 to 8.7 μM. The selectivity of these two compounds was evaluated by SRB method against human cancer and normal hepatic cells (HepG2 and L02). The induction of apoptosis and effects on the cell cycle distribution with compounds 2e and 2g were investigated by Hoechst 33,258 staining and flow cytometry, which exhibited that they could induce selective cell apoptosis and cell cycle arrest in HepG2 and L02 cells. In addition, further investigation showed that compounds 2e and 2g could obviously inhibit the proliferation of HepG2 cells by inducing significant DNA cross-linking and depleting GSH in cell media. The good cytotoxicity and selectivity of compounds 2e and 2g pointed them as promising leads for anticancer drug design.
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59
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Vendramini-Costa DB, Monteiro KM, Iwamoto LH, Jorge MP, Tinti SV, Pilli RA, de Carvalho JE. Gastroprotective effects of goniothalamin against ethanol and indomethacin-induced gastric lesions in rats: Role of prostaglandins, nitric oxide and sulfhydryl compounds. Chem Biol Interact 2014; 224:206-12. [PMID: 25451594 DOI: 10.1016/j.cbi.2014.10.025] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2014] [Revised: 10/04/2014] [Accepted: 10/15/2014] [Indexed: 02/07/2023]
Abstract
Goniothalamin (GTN), a styryl-lactone, is a secondary metabolite naturally found in its enantiomeric form (R) in plants of the genus Goniothalamus (Annonaceae). The antiproliferative activity against human tumor cell lines reported in several studies suggest that the α,β-unsaturated δ-lactone moiety emerges as a key Michael acceptor for cysteine residues or other nucleophilic biological molecules. Our group reported on the in vivo activity of (R)- and (S)-GTN as well as its racemic form (rac-GTN) in both Ehrlich solid tumor and carrageenan-induced paw edema in mice, without side effects in the effective doses. Despite the rich body of data on the in vitro GTN biological activity, much less is known about its in vivo pharmacological action. Herein we describe the gastroprotective activity of rac-GTN on chemical-induced gastric ulcers models in rats. GTN has a potent gastroprotective effect on ethanol-induced ulcers (effective dose50=18mg/kg) and this activity is dependent on sulfhydryl compounds and prostaglandins generation, but independent of nitric oxide (NO), gastric secretion and mucus production. We hypothesize that goniothalamin may act as a mild irritant, inducing the production of sulfhydryl compounds and prostaglandins, in a process known as adaptive cytoprotection. This hypothesis is supported by the fact that Michael acceptors are the most potent inducers of antioxidant response (as activation of Nrf2 pathway) through generation of mild oxidative stress and that gastroprotective activity of goniothalamin is inhibited after pre-treatment with NEM (N-ethylmaleimide) and NSAID (non-steroidal anti-inflammatory drugs), highlighting the importance of sulfhydryl compounds and prostaglandins on GTN activity.
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Affiliation(s)
- Débora Barbosa Vendramini-Costa
- Department of Organic Chemistry, Institute of Chemistry, University of Campinas, Rua Josué de Castro s/n, Cidade Universitária Zeferino Vaz, CP 6154, Campinas, SP 13081-970, Brazil; Chemical, Biological and Agricultural Pluridisciplinary Research Center, CPQBA, University of Campinas, Rua Alexandre Cazelatto, 999, Vila Betel, Paulínia, SP 13148-218, Brazil.
| | - Karin Maia Monteiro
- Chemical, Biological and Agricultural Pluridisciplinary Research Center, CPQBA, University of Campinas, Rua Alexandre Cazelatto, 999, Vila Betel, Paulínia, SP 13148-218, Brazil
| | - Leilane Hespporte Iwamoto
- Chemical, Biological and Agricultural Pluridisciplinary Research Center, CPQBA, University of Campinas, Rua Alexandre Cazelatto, 999, Vila Betel, Paulínia, SP 13148-218, Brazil; Department of Pharmacology, Anaesthesiology and Therapeutics, Faculty of Dentistry, University of Campinas, Av. Limeira, 901, Piracicaba, SP 13414-903, Brazil
| | - Michelle Pedroza Jorge
- Chemical, Biological and Agricultural Pluridisciplinary Research Center, CPQBA, University of Campinas, Rua Alexandre Cazelatto, 999, Vila Betel, Paulínia, SP 13148-218, Brazil
| | - Sirlene Valério Tinti
- Chemical, Biological and Agricultural Pluridisciplinary Research Center, CPQBA, University of Campinas, Rua Alexandre Cazelatto, 999, Vila Betel, Paulínia, SP 13148-218, Brazil
| | - Ronaldo Aloise Pilli
- Department of Organic Chemistry, Institute of Chemistry, University of Campinas, Rua Josué de Castro s/n, Cidade Universitária Zeferino Vaz, CP 6154, Campinas, SP 13081-970, Brazil
| | - João Ernesto de Carvalho
- Chemical, Biological and Agricultural Pluridisciplinary Research Center, CPQBA, University of Campinas, Rua Alexandre Cazelatto, 999, Vila Betel, Paulínia, SP 13148-218, Brazil; Department of Pharmacology, Anaesthesiology and Therapeutics, Faculty of Dentistry, University of Campinas, Av. Limeira, 901, Piracicaba, SP 13414-903, Brazil; Faculty of Pharmaceutical Sciences, University of Campinas, Cidade Universitária Zeferino Vaz, Campinas, SP 13081-970, Brazil
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60
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Barcelos RC, Pelizzaro-Rocha KJ, Pastre JC, Dias MP, Ferreira-Halder CV, Pilli RA. A new goniothalamin N-acylated aza-derivative strongly downregulates mediators of signaling transduction associated with pancreatic cancer aggressiveness. Eur J Med Chem 2014; 87:745-58. [PMID: 25305718 DOI: 10.1016/j.ejmech.2014.09.085] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2014] [Revised: 09/05/2014] [Accepted: 09/08/2014] [Indexed: 12/20/2022]
Abstract
In this study, a novel concise series of molecules based on the structure of goniothalamin (1) was synthesized and evaluated against a highly metastatic human pancreatic cancer cell line (Panc-1). Among them, derivative 8 displayed a low IC50 value (2.7 μM) and its concentration for decreasing colony formation was 20-fold lower than goniothalamin (1). Both compounds reduced the levels of the receptor tyrosine kinase (AXL) and cyclin D1 which are known to be overexpressed in pancreatic cancer cells. Importantly, despite the fact that goniothalamin (1) and derivative 8 caused pancreatic cancer cell cycle arrest and cell death, only derivative 8 was able to downregulate pro-survival and proliferation pathways mediated by mitogen activated protein kinase ERK1/2. Another interesting finding was that Panc-1 cells treated with derivative 8 displayed a strong decrease in the transcription factor (c-Myc), hypoxia-inducible factor-1α (HIF-1α) and vascular endothelial growth factor (VEGF) protein levels. Notably, the molecular effects caused by derivative 8 might not be related to ROS generation, since no significant production of ROS was observed in low concentrations of this compound (from 1.5 up to 3 μM). Therefore, the downregulation of important mediators of pancreatic cancer aggressiveness by derivative 8 reveals its great potential for the development of new chemotherapeutic agents for pancreatic cancer treatment.
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Affiliation(s)
- Rosimeire Coura Barcelos
- Department of Organic Chemistry, Chemistry Institute, University of Campinas, CP 6154, 13083-970, Campinas, SP, Brazil
| | | | - Julio Cezar Pastre
- Department of Organic Chemistry, Chemistry Institute, University of Campinas, CP 6154, 13083-970, Campinas, SP, Brazil
| | - Marina Pereira Dias
- Department of Biochemistry, Biology Institute, University of Campinas, 13083-862, Campinas, São Paulo, Brazil
| | | | - Ronaldo Aloise Pilli
- Department of Organic Chemistry, Chemistry Institute, University of Campinas, CP 6154, 13083-970, Campinas, SP, Brazil.
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61
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Barcelos RC, Pastre JC, Vendramini-Costa DB, Caixeta V, Longato GB, Monteiro PA, de Carvalho JE, Pilli RA. Design and synthesis of N-acylated aza-goniothalamin derivatives and evaluation of their in vitro and in vivo antitumor activity. ChemMedChem 2014; 9:2725-43. [PMID: 25263285 DOI: 10.1002/cmdc.201402292] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2014] [Indexed: 01/24/2023]
Abstract
Herein we describe the synthesis of a focused library of compounds based on the structure of goniothalamin (1) and the evaluation of the potential antitumor activity of the compounds. N-Acylation of aza-goniothalamin (2) restored the in vitro antiproliferative activity of this family of compounds. 1-(E)-But-2-enoyl-6-styryl-5,6-dihydropyridin-2(1H)-one (18) displayed enhanced antiproliferative activity. Both goniothalamin (1) and derivative 18 led to reactive oxygen species generation in PC-3 cells, which was probably a signal for caspase-dependent apoptosis. Treatment with derivative 18 promoted Annexin V/7-aminoactinomycin D double staining, which indicated apoptosis, and also led to G2 /M cell-cycle arrest. In vivo studies in Ehrlich ascitic and solid tumor models confirmed the antitumor activity of goniothalamin (1), without signs of toxicity. However, derivative 18 exhibited an unexpectedly lower in vivo antitumor activity, despite the treatments being administered at the same site of inoculation. Contrary to its in vitro profile, aza-goniothalamin (2) inhibited Ehrlich tumor growth, both on the ascitic and solid forms. Our findings highlight the importance of in vivo studies in the search for new candidates for cancer treatment.
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Affiliation(s)
- Rosimeire Coura Barcelos
- Departamento de Química Orgânica, Instituto de Química, Universidade Estadual de Campinas, CP 6154, 13083-970, Campinas, SP (Brazil)
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Scarponi C, Butturini E, Sestito R, Madonna S, Cavani A, Mariotto S, Albanesi C. Inhibition of inflammatory and proliferative responses of human keratinocytes exposed to the sesquiterpene lactones dehydrocostuslactone and costunolide. PLoS One 2014; 9:e107904. [PMID: 25226283 PMCID: PMC4166670 DOI: 10.1371/journal.pone.0107904] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Accepted: 08/19/2014] [Indexed: 12/18/2022] Open
Abstract
The imbalance of the intracellular redox state and, in particular, of the glutathione (GSH)/GSH disulfide couple homeostasis, is involved in the pathogenesis of a number of diseases. In many skin diseases, including psoriasis, oxidative stress plays an important role, as demonstrated by the observation that treatments leading to increase of the local levels of oxidant species ameliorate the disease. Recently, dehydrocostuslactone (DCE) and costunolide (CS), two terpenes naturally occurring in many plants, have been found to exert various anti-inflammatory and pro-apoptotic effects on different human cell types. These compounds decrease the level of the intracellular GSH by direct interaction with it, and, therefore, can alter cellular redox state. DCE and CS can trigger S-glutathionylation of various substrates, including the transcription factor STAT3 and JAK1/2 proteins. In the present study, we investigated on the potential role of DCE and CS in regulating inflammatory and proliferative responses of human keratinocytes to cytokines. We demonstrated that DCE and CS decreased intracellular GSH levels in human keratinocytes, as well as inhibited STAT3 and STAT1 phosphorylation and activation triggered by IL-22 or IFN-γ, respectively. Consequently, DCE and CS decreased the IL-22- and IFN-γ-induced expression of inflammatory and regulatory genes in keratinocytes, including CCL2, CXCL10, ICAM-1 and SOCS3. DCE and CS also inhibited proliferation and cell-cycle progression-related gene expression, as well as they promoted cell cycle arrest and apoptosis. In parallel, DCE and CS activated the anti-inflammatory EGFR and ERK1/2 molecules in keratinocytes, and, thus, wound healing in an in vitro injury model. In light of our findings, we can hypothesize that the employment of DCE and CS in psoriasis could efficiently counteract the pro-inflammatory effects of IFN-γ and IL-22 on keratinocytes, revert the apoptosis-resistant phenotype, as well as inhibit hyperproliferation in the psoriatic epidermis.
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Affiliation(s)
| | - Elena Butturini
- Department of Life and Reproduction Sciences, University of Verona, Verona, Italy
| | | | | | - Andrea Cavani
- Experimental Immunology Laboratory, IDI-IRCCS, Rome, Italy
| | - Sofia Mariotto
- Department of Life and Reproduction Sciences, University of Verona, Verona, Italy
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Chen YF, Wang SH, Chang SJ, Shiau AL, Her LS, Shieh GS, Chen CF, Chang CC, Su YC, Wu CL, Wu TS. Zhankuic acid A as a novel JAK2 inhibitor for the treatment of concanavalin A-induced hepatitis. Biochem Pharmacol 2014; 91:217-30. [DOI: 10.1016/j.bcp.2014.06.026] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2014] [Revised: 06/28/2014] [Accepted: 06/30/2014] [Indexed: 11/28/2022]
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Butturini E, Darra E, Chiavegato G, Cellini B, Cozzolino F, Monti M, Pucci P, Dell’Orco D, Mariotto S. S-Glutathionylation at Cys328 and Cys542 impairs STAT3 phosphorylation. ACS Chem Biol 2014; 9:1885-93. [PMID: 24941337 DOI: 10.1021/cb500407d] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
STAT3 is a latent transcription factor that promotes cell survival and proliferation and is often constitutively active in cancers. Although many reports provide evidence that STAT3 is a direct target of oxidative stress, its redox regulation is poorly understood. Under oxidative conditions STAT3 activity can be modulated by S-glutathionylation, a reversible redox modification of cysteine residues. This suggests the possible cross-talk between phosphorylation and glutathionylation and points out that STAT3 is susceptible to redox regulation. Recently, we reported that decreasing the GSH content in different cell lines induces inhibition of STAT3 activity through the reversible oxidation of thiol groups. In the present work, we demonstrate that GSH/diamide treatment induces S-glutathionylation of STAT3 in the recombinant purified form. This effect was completely reversed by treatment with the reducing agent dithiothreitol, indicating that S-glutathionylation of STAT3 was related to formation of protein-mixed disulfides. Moreover, addition of the bulky negatively charged GSH moiety impairs JAK2-mediated STAT3 phosphorylation, very likely interfering with tyrosine accessibility and thus affecting protein structure and function. Mass mapping analysis identifies two glutathionylated cysteine residues, Cys328 and Cys542, within the DNA-binding domain and the linker domain, respectively. Site direct mutagenesis and in vitro kinase assay confirm the importance of both cysteine residues in the complex redox regulatory mechanism of STAT3. Cells expressing mutant were resistant in this regard. The data presented herein confirmed the occurrence of a redox-dependent regulation of STAT3, identified the more redox-sensitive cysteines within STAT3 structure, and may have important implications for development of new drugs.
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Affiliation(s)
- Elena Butturini
- Department of Life and Reproduction Sciences, Biochemistry Section, University of Verona, Verona 37134, Italy
| | - Elena Darra
- Department of Life and Reproduction Sciences, Biochemistry Section, University of Verona, Verona 37134, Italy
| | - Giulia Chiavegato
- Department of Life and Reproduction Sciences, Biochemistry Section, University of Verona, Verona 37134, Italy
| | - Barbara Cellini
- Department of Life and Reproduction Sciences, Biochemistry Section, University of Verona, Verona 37134, Italy
| | - Flora Cozzolino
- CEINGE Biotecnologie Avanzate and Department of Chemical Science, University of Naples “Federico II”, Naples 80138, Italy
| | - Maria Monti
- CEINGE Biotecnologie Avanzate and Department of Chemical Science, University of Naples “Federico II”, Naples 80138, Italy
| | - Piero Pucci
- CEINGE Biotecnologie Avanzate and Department of Chemical Science, University of Naples “Federico II”, Naples 80138, Italy
| | - Daniele Dell’Orco
- Department of Life and Reproduction Sciences, Biochemistry Section, University of Verona, Verona 37134, Italy
| | - Sofia Mariotto
- Department of Life and Reproduction Sciences, Biochemistry Section, University of Verona, Verona 37134, Italy
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Yang YC, Huang YT, Hsieh CW, Yang PM, Wung BS. Carbon monoxide induces heme oxygenase-1 to modulate STAT3 activation in endothelial cells via S-glutathionylation. PLoS One 2014; 9:e100677. [PMID: 25072782 PMCID: PMC4114553 DOI: 10.1371/journal.pone.0100677] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2013] [Accepted: 05/29/2014] [Indexed: 12/19/2022] Open
Abstract
IL-6/STAT3 pathway is involved in a variety of biological responses, including cell proliferation, differentiation, apoptosis, and inflammation. In our present study, we found that CO releasing molecules (CORMs) suppress IL-6-induced STAT3 phosphorylation, nuclear translocation and transactivity in endothelial cells (ECs). CO is a byproduct of heme degradation mediated by heme oxygenase (HO-1). However, CORMs can induce HO-1 expression and then inhibit STAT3 phosphorylation. CO has been found to increase a low level ROS and which may induce protein glutathionylation. We hypothesized that CORMs increases protein glutathionylation and inhibits STAT3 activation. We found that CORMs increase the intracellular GSSG level and induce the glutathionylation of multiple proteins including STAT3. GSSG can inhibit STAT3 phosphorylation and increase STAT3 glutathionylation whereas the antioxidant enzyme catalase can suppress the glutathionylation. Furthermore, catalase blocks the inhibition of STAT3 phosphorylation by CORMs treatment. The inhibition of glutathione synthesis by BSO was also found to attenuate STAT3 glutathionylation and its inhibition of STAT3 phosphorylation. We further found that HO-1 increases STAT3 glutathionylation and that HO-1 siRNA attenuates CORM-induced STAT3 glutathionylation. Hence, the inhibition of STAT3 activation is likely to occur via a CO-mediated increase in the GSSG level, which augments protein glutathionylation, and CO-induced HO-1 expression, which may enhance and maintain its effects in IL-6-treated ECs.
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Affiliation(s)
- Yan-Chang Yang
- Department of Microbiology, Immunology and Biopharmaceuticals, National Chiayi University, Chiayi, Taiwan, ROC
| | - Yu-Ting Huang
- Department of Microbiology, Immunology and Biopharmaceuticals, National Chiayi University, Chiayi, Taiwan, ROC
| | - Chia-Wen Hsieh
- Department of Microbiology, Immunology and Biopharmaceuticals, National Chiayi University, Chiayi, Taiwan, ROC
| | - Po-Min Yang
- Department of Ophthalmology, Chiayi Christian Hospital, Chiayi, Taiwan, ROC
| | - Being-Sun Wung
- Department of Microbiology, Immunology and Biopharmaceuticals, National Chiayi University, Chiayi, Taiwan, ROC
- * E-mail:
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Park EJ, Park SW, Kim HJ, Kwak JH, Lee DU, Chang KC. Dehydrocostuslactone inhibits LPS-induced inflammation by p38MAPK-dependent induction of hemeoxygenase-1 in vitro and improves survival of mice in CLP-induced sepsis in vivo. Int Immunopharmacol 2014; 22:332-40. [PMID: 25066549 DOI: 10.1016/j.intimp.2014.07.012] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2014] [Revised: 06/30/2014] [Accepted: 07/10/2014] [Indexed: 01/18/2023]
Abstract
We investigated the hypothesis that the administration of dehydrocostuslactone (DL), a sesquiterpene lactone found in Saussurea lappa Clarke (Compositae), might reduce organ failure and increase survival in a cecal ligation and puncture (CLP)-induced mouse model of sepsis due to HO-1 induction. Treatment of RAW264.7 cells with DL increased HO-1 expression in a time- and concentration-dependent manner, and this up-regulation of HO-1 by DL was significantly inhibited by silencing either Nrf2 and p38 or treating cells with SB203580 (a p38MAPK inhibitor), but it was not inhibited in the presence of SP600125 (an ERK inhibitor), PD98059 (a JNK inhibitor), or LY294002 (PI3K inhibitor). As expected, DL concentration dependently inhibited the expressions of inducible nitric oxide synthase (iNOS) and cyclooxygenase (COX-2), and the productions of NO and PGE2 in LPS-activated cells, and these inhibitions were reversed by silencing HO-1. Most importantly, administration of DL significantly reduced mortality and reduced serum IL-1β and TNF-α and the infiltration of macrophages into liver tissues of CLP-mice. Inducible NOS expression in lung and liver tissues of CLP-mice was reduced by DL, which was reversed by the co-administration of zinc-protoporphyrin IX (ZnPPIX; a competitive inhibitor of HO-1). Our findings indicate that DL might be useful for the treatment of sepsis.
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Affiliation(s)
- Eun Jung Park
- Department of Pharmacology, School of Medicine, Institute of Health Sciences, Gyeongsang National University, Jinju 660-751, Republic of Korea
| | - Sang Won Park
- Department of Pharmacology, School of Medicine, Institute of Health Sciences, Gyeongsang National University, Jinju 660-751, Republic of Korea
| | - Hye Jung Kim
- Department of Pharmacology, School of Medicine, Institute of Health Sciences, Gyeongsang National University, Jinju 660-751, Republic of Korea
| | - Jong-Hwan Kwak
- School of Pharmacy, Sungkyunkwan University, Suwon 440-746, Republic of Korea
| | - Dong-Ung Lee
- Division of Bioscience, Dongguk University, Gyeongju 780-714, Republic of Korea.
| | - Ki Churl Chang
- Department of Pharmacology, School of Medicine, Institute of Health Sciences, Gyeongsang National University, Jinju 660-751, Republic of Korea.
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Pinz S, Unser S, Rascle A. The natural chemopreventive agent sulforaphane inhibits STAT5 activity. PLoS One 2014; 9:e99391. [PMID: 24910998 PMCID: PMC4051870 DOI: 10.1371/journal.pone.0099391] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2014] [Accepted: 05/14/2014] [Indexed: 12/21/2022] Open
Abstract
Signal transducer and activator of transcription STAT5 is an essential mediator of cytokine, growth factor and hormone signaling. While its activity is tightly regulated in normal cells, its constitutive activation directly contributes to oncogenesis and is associated to a number of hematological and solid tumor cancers. We previously showed that deacetylase inhibitors can inhibit STAT5 transcriptional activity. We now investigated whether the dietary chemopreventive agent sulforaphane, known for its activity as deacetylase inhibitor, might also inhibit STAT5 activity and thus could act as a chemopreventive agent in STAT5-associated cancers. We describe here sulforaphane (SFN) as a novel STAT5 inhibitor. We showed that SFN, like the deacetylase inhibitor trichostatin A (TSA), can inhibit expression of STAT5 target genes in the B cell line Ba/F3, as well as in its transformed counterpart Ba/F3-1*6 and in the human leukemic cell line K562 both of which express a constitutively active form of STAT5. Similarly to TSA, SFN does not alter STAT5 initial activation by phosphorylation or binding to the promoter of specific target genes, in favor of a downstream transcriptional inhibitory effect. Chromatin immunoprecipitation assays revealed that, in contrast to TSA however, SFN only partially impaired the recruitment of RNA polymerase II at STAT5 target genes and did not alter histone H3 and H4 acetylation, suggesting an inhibitory mechanism distinct from that of TSA. Altogether, our data revealed that the natural compound sulforaphane can inhibit STAT5 downstream activity, and as such represents an attractive cancer chemoprotective agent targeting the STAT5 signaling pathway.
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Affiliation(s)
- Sophia Pinz
- Stat5 Signaling Research Group, Institute of Immunology, University of Regensburg, Regensburg, Germany
| | - Samy Unser
- Stat5 Signaling Research Group, Institute of Immunology, University of Regensburg, Regensburg, Germany
| | - Anne Rascle
- Stat5 Signaling Research Group, Institute of Immunology, University of Regensburg, Regensburg, Germany
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Butturini E, Di Paola R, Suzuki H, Paterniti I, Ahmad A, Mariotto S, Cuzzocrea S. Costunolide and Dehydrocostuslactone, two natural sesquiterpene lactones, ameliorate the inflammatory process associated to experimental pleurisy in mice. Eur J Pharmacol 2014; 730:107-15. [PMID: 24625594 DOI: 10.1016/j.ejphar.2014.02.031] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2013] [Revised: 02/19/2014] [Accepted: 02/28/2014] [Indexed: 12/31/2022]
Abstract
The aim of this study was to investigate the effect of costunolide (CS) and dehydrocostuslactone (DCE) a well-known sesquiterpene lactones contained in many plants, in a model of lung injury induced by carrageenan administration in the mice. Injection of carrageenan into the pleural cavity of mice elicited an acute inflammatory response characterized by fluid accumulation in the pleural cavity which contained a large number of polymorphonuclear cells (PMNs) as well as an infiltration of PMNs in lung tissues and increased production of tumour necrosis factor α (TNF-α). All parameters of inflammation were attenuated by CS and DCE (15mg/kg 10% DMSO i.p.) administered 1h before carrageenan. Carrageenan induced an up regulation of the intracellular adhesion molecules-1 (ICAM-1) and P-selectin, as well as nitrotyrosine and poly (ADP-ribose) (PAR) as determined by immunohistochemical analysis of lung tissues. The degree of staining for the ICAM-1, P-selectin, nitrotyrosine and PAR was reduced by CS and DCE. Additionally we show that this inflammatory events were associated with NF-κB and STAT3 activation and these sesquiterpenes down-regulated it. Taken together, ours results clearly shown that CS and DCE may offer a novel therapeutic approach for the management of inflammatory diseases.
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Affiliation(s)
- Elena Butturini
- Department of Life and Reproduction Sciences, Section of Biochemistry, University of Verona, Verona, Italy
| | - Rosanna Di Paola
- Department of Biological and Environmental Sciences, University of Messina, 98166 Messina, Italy
| | - Hisanori Suzuki
- Department of Life and Reproduction Sciences, Section of Biochemistry, University of Verona, Verona, Italy
| | - Irene Paterniti
- Department of Biological and Environmental Sciences, University of Messina, 98166 Messina, Italy
| | - Akbar Ahmad
- Department of Biological and Environmental Sciences, University of Messina, 98166 Messina, Italy
| | - Sofia Mariotto
- Department of Life and Reproduction Sciences, Section of Biochemistry, University of Verona, Verona, Italy.
| | - Salvatore Cuzzocrea
- Department of Biological and Environmental Sciences, University of Messina, 98166 Messina, Italy; Manchester University, Manchester, United Kingdom.
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Pinz S, Unser S, Brueggemann S, Besl E, Al-Rifai N, Petkes H, Amslinger S, Rascle A. The synthetic α-bromo-2',3,4,4'-tetramethoxychalcone (α-Br-TMC) inhibits the JAK/STAT signaling pathway. PLoS One 2014; 9:e90275. [PMID: 24595334 PMCID: PMC3940872 DOI: 10.1371/journal.pone.0090275] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2013] [Accepted: 01/27/2014] [Indexed: 11/30/2022] Open
Abstract
Signal transducer and activator of transcription STAT5 and its upstream activating kinase JAK2 are essential mediators of cytokine signaling. Their activity is normally tightly regulated and transient. However, constitutive activation of STAT5 is found in numerous cancers and a driving force for malignant transformation. We describe here the identification of the synthetic chalcone α-Br-2′,3,4,4′-tetramethoxychalcone (α-Br-TMC) as a novel JAK/STAT inhibitor. Using the non-transformed IL-3-dependent B cell line Ba/F3 and its oncogenic derivative Ba/F3-1*6 expressing constitutively activated STAT5, we show that α-Br-TMC targets the JAK/STAT pathway at multiple levels, inhibiting both JAK2 and STAT5 phosphorylation. Moreover, α-Br-TMC alters the mobility of STAT5A/B proteins in SDS-PAGE, indicating a change in their post-translational modification state. These alterations correlate with a decreased association of STAT5 and RNA polymerase II with STAT5 target genes in chromatin immunoprecipitation assays. Interestingly, expression of STAT5 target genes such as Cis and c-Myc was differentially regulated by α-Br-TMC in normal and cancer cells. While both genes were inhibited in IL-3-stimulated Ba/F3 cells, expression of the oncogene c-Myc was down-regulated and that of the tumor suppressor gene Cis was up-regulated in transformed Ba/F3-1*6 cells. The synthetic chalcone α-Br-TMC might therefore represent a promising novel anticancer agent for therapeutic intervention in STAT5-associated malignancies.
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Affiliation(s)
- Sophia Pinz
- Stat5 Signaling Research Group, Institute of Immunology, University of Regensburg, Regensburg, Germany
| | - Samy Unser
- Stat5 Signaling Research Group, Institute of Immunology, University of Regensburg, Regensburg, Germany
| | - Susanne Brueggemann
- Stat5 Signaling Research Group, Institute of Immunology, University of Regensburg, Regensburg, Germany
| | - Elisabeth Besl
- Stat5 Signaling Research Group, Institute of Immunology, University of Regensburg, Regensburg, Germany
| | - Nafisah Al-Rifai
- Institute of Organic Chemistry, University of Regensburg, Regensburg, Germany
| | - Hermina Petkes
- Institute of Organic Chemistry, University of Regensburg, Regensburg, Germany
| | - Sabine Amslinger
- Institute of Organic Chemistry, University of Regensburg, Regensburg, Germany
- * E-mail: (AR); (SA)
| | - Anne Rascle
- Stat5 Signaling Research Group, Institute of Immunology, University of Regensburg, Regensburg, Germany
- * E-mail: (AR); (SA)
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Youn UJ, Miklossy G, Chai X, Wongwiwatthananukit S, Toyama O, Songsak T, Turkson J, Chang LC. Bioactive sesquiterpene lactones and other compounds isolated from Vernonia cinerea. Fitoterapia 2013; 93:194-200. [PMID: 24370662 DOI: 10.1016/j.fitote.2013.12.013] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2013] [Revised: 12/09/2013] [Accepted: 12/16/2013] [Indexed: 11/24/2022]
Abstract
Four new sesquiterpene lactones, 8α-(2'Z-tigloyloxy)-hirsutinolide (1), 8α-(2'Z-tigloyloxy)-hirsutinolide-13-O-acetate (2), 8α-(4-hydroxytigloyloxy)-hirsutinolide (3), and 8α-hydroxy-13-O-tigloyl-hirsutinolide (4), along with seven known derivatives (5-11), three norisoprenoids (12-14), a flavonoid (15), and a linoleic acid derivative (16), were isolated from the chloroform partition of a methanol extract from the combined leaves and stems of Vernonia cinerea. Their structures were established by 1D and 2D NMR, UV, and MS analyses. Compounds 1-16 were evaluated for their inhibitory effects against the viability of U251MG glioblastoma and MDA-MB-231 breast cancer cells that harbour aberrantly-active STAT3, compared to normal NIH3T3 mouse fibroblasts that show no evidence of activated STAT3. Among the isolates, compounds 2 and 7 inhibited the aberrant STAT3 activity in glioblastoma or breast cancer cells. Further, compounds 7 and 8 inhibited viability of all three cell lines, compounds 2, 4, and 9 predominantly inhibited the viability of the U251MG glioblastoma cell line.
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Affiliation(s)
- Ui Joung Youn
- Department of Pharmaceutical Sciences, Daniel K. Inouye College of Pharmacy, University of Hawai'i at Hilo, Hilo, HI, 96720, United States
| | - Gabriella Miklossy
- Natural Products and Experimental Therapeutics Programs, University of Hawai'i Cancer Center, Honolulu, HI, 96813, United States
| | - Xingyun Chai
- Department of Pharmaceutical Sciences, Daniel K. Inouye College of Pharmacy, University of Hawai'i at Hilo, Hilo, HI, 96720, United States
| | - Supakit Wongwiwatthananukit
- Department of Pharmacy Practice, Daniel K. Inouye College of Pharmacy, University of Hawai'i at Hilo, Hilo, HI, 96720, United States
| | - Onoomar Toyama
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Silpakorn University, Nakhon Pathom 73000, Thailand
| | - Thanapat Songsak
- Department of Pharmacognosy, Faculty of Pharmacy, Rangsit University, Pathumtani 12000, Thailand
| | - James Turkson
- Natural Products and Experimental Therapeutics Programs, University of Hawai'i Cancer Center, Honolulu, HI, 96813, United States
| | - Leng Chee Chang
- Department of Pharmaceutical Sciences, Daniel K. Inouye College of Pharmacy, University of Hawai'i at Hilo, Hilo, HI, 96720, United States.
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71
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Butturini E, Carcereri de Prati A, Chiavegato G, Rigo A, Cavalieri E, Darra E, Mariotto S. Mild oxidative stress induces S-glutathionylation of STAT3 and enhances chemosensitivity of tumoural cells to chemotherapeutic drugs. Free Radic Biol Med 2013; 65:1322-1330. [PMID: 24095958 DOI: 10.1016/j.freeradbiomed.2013.09.015] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2013] [Revised: 09/18/2013] [Accepted: 09/19/2013] [Indexed: 12/29/2022]
Abstract
STAT3 is a transcription factor constitutively activated in a variety of cancers that has a critical role in the inhibition of apoptosis and induction of chemoresistance. Inhibition of the STAT3 signaling pathway suppresses cell survival signals and leads to apoptosis in cancer cells, suggesting that direct inhibition of STAT3 function is a viable therapeutic approach. Herein, we identify the naturally occurring sesquiterpene lactone cynaropicrin as a potent inhibitor of both IL-6-inducible and constitutive STAT3 activation (IC50=12 μM). Cynaropicrin, which contains an α-β-unsaturated carbonyl moiety and acts as potent Michael reaction acceptor, induces a rapid drop in intracellular glutathione (GSH) concentration, thereby triggering S-glutathionylation of STAT3. Furthermore, glutathione ethylene ester, the cell permeable form of GSH, reverts the inhibitory action of cynaropicrin on STAT3 tyrosine phosphorylation. These findings suggest that this sesquiterpene lactone is able to induce redox-dependent post-translational modification of cysteine residues of STAT3 protein to regulate its function. STAT3 inhibition led to the suppression of two anti-apoptotic genes, Bcl-2 and survivin, in DU145 cells that constitutively express active STAT3. This event may be responsible for the decline in cell viability after cynaropicrin treatment. As revealed by PI/annexin-V staining, PARP cleavage, and DNA ladder formation, cynaropicrin cytotoxicity is mediated by apoptosis. Finally, cynaropicrin displayed a slight to strong synergism with two well-established chemotherapeutic drugs, cisplatin and docetaxel. Taken together our studies suggest that cynaropicrin suppresses the STAT3 pathway, leading to the down-regulation of STAT3-dependent gene expression and chemosensitization of tumour cells to chemotherapy.
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Affiliation(s)
- Elena Butturini
- Department of Life and Reproduction Sciences, Biochemistry Section, University of Verona, 37134 Verona, Italy
| | | | - Giulia Chiavegato
- Department of Life and Reproduction Sciences, Biochemistry Section, University of Verona, 37134 Verona, Italy
| | - Antonella Rigo
- Department of Medicine, University of Verona, 37134 Verona, Italy
| | - Elisabetta Cavalieri
- Department of Life and Reproduction Sciences, Biochemistry Section, University of Verona, 37134 Verona, Italy
| | - Elena Darra
- Department of Life and Reproduction Sciences, Biochemistry Section, University of Verona, 37134 Verona, Italy
| | - Sofia Mariotto
- Department of Life and Reproduction Sciences, Biochemistry Section, University of Verona, 37134 Verona, Italy.
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Bruno M, Bancheva S, Rosselli S, Maggio A. Sesquiterpenoids in subtribe Centaureinae (Cass.) Dumort (tribe Cardueae, Asteraceae): distribution, (13)C NMR spectral data and biological properties. PHYTOCHEMISTRY 2013; 95:19-93. [PMID: 23948259 DOI: 10.1016/j.phytochem.2013.07.002] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2012] [Revised: 07/05/2013] [Accepted: 07/05/2013] [Indexed: 05/22/2023]
Abstract
Asteraceae Bercht. & J. Presl is one of the biggest and most economically important plant families. The taxonomy and phylogeny of Asteraceae is rather complex and according to the latest and most reliable taxonomic classification of Panero & Funk, based on the analysis of nine chloroplast regions, the family is divided into 12 subfamilies and 35 tribes. One of the largest tribes of Asteraceae is Cardueae Cass. with four subtribes (Carlininae, Echinopinae, Carduinae and Centaureinae) and more than 2500 species. Susanna & Garcia-Jacas have organized the genera of Centaureinae (about 800 species) into seven informal groups, which recent molecular studies have confirmed: 1. Basal genera; 2. Volutaria group; 3. Rhaponticum group; 4. Serratula group; 5. Carthamus group; 6. Crocodylium group; 7. Centaurea group. This review summarizes reports on sesquiterpenoids from the Centaureinae subtribe of the Asteraceae family, as well as the (13)C NMR spectral data described in the literature. It further reviews studies concerning the biological activities of these metabolites. For this work, literature data on sesquiterpenes from the Centaureinae subtribe were retrieved with the help of the SciFinder database and other similar data banks. All entries from 1958 until the end of 2011 were considered. This review is addressed to scientists working in the metabolomics field such as chemists, botanists, etc., the spectroscopic data reported make this work a good tool for structural elucidation, the biological section gives useful information to those who wish to study the structure activity relationships.
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Affiliation(s)
- Maurizio Bruno
- STEBICEF, Section of Chemistry, University of Palermo, Viale delle Scienze, Parco d'Orleans II, 90128 Palermo, Italy.
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Kausar H, Munagala R, Bansal SS, Aqil F, Vadhanam MV, Gupta RC. Cucurbitacin B potently suppresses non-small-cell lung cancer growth: Identification of intracellular thiols as critical targets. Cancer Lett 2013; 332:35-45. [DOI: 10.1016/j.canlet.2013.01.008] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2012] [Revised: 12/24/2012] [Accepted: 01/04/2013] [Indexed: 01/06/2023]
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Alantolactone induces apoptosis in HepG2 cells through GSH depletion, inhibition of STAT3 activation, and mitochondrial dysfunction. BIOMED RESEARCH INTERNATIONAL 2012; 2013:719858. [PMID: 23533997 PMCID: PMC3591150 DOI: 10.1155/2013/719858] [Citation(s) in RCA: 77] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2012] [Revised: 10/24/2012] [Accepted: 10/24/2012] [Indexed: 02/06/2023]
Abstract
Signal transducer and activator of transcription 3 (STAT3) constitutively expresses in human liver cancer cells and has been implicated in apoptosis resistance and tumorigenesis. Alantolactone, a sesquiterpene lactone, has been shown to possess anticancer activities in various cancer cell lines. In our previous report, we showed that alantolactone induced apoptosis in U87 glioblastoma cells via GSH depletion and ROS generation. However, the molecular mechanism of GSH depletion remained unexplored. The present study was conducted to envisage the molecular mechanism of alantolactone-induced apoptosis in HepG2 cells by focusing on the molecular mechanism of GSH depletion and its effect on STAT3 activation. We found that alantolactone induced apoptosis in HepG2 cells in a dose-dependent manner. This alantolactone-induced apoptosis was found to be associated with GSH depletion, inhibition of STAT3 activation, ROS generation, mitochondrial transmembrane potential dissipation, and increased Bax/Bcl-2 ratio and caspase-3 activation. This alantolactone-induced apoptosis and GSH depletion were effectively inhibited or abrogated by a thiol antioxidant, N-acetyl-L-cysteine (NAC). The data demonstrate clearly that intracellular GSH plays a central role in alantolactone-induced apoptosis in HepG2 cells. Thus, alantolactone may become a lead chemotherapeutic candidate for the treatment of liver cancer.
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Bonifacio M, Rigo A, Guardalben E, Bergamini C, Cavalieri E, Fato R, Pizzolo G, Suzuki H, Vinante F. α-bisabolol is an effective proapoptotic agent against BCR-ABL(+) cells in synergism with Imatinib and Nilotinib. PLoS One 2012; 7:e46674. [PMID: 23056396 PMCID: PMC3463553 DOI: 10.1371/journal.pone.0046674] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2012] [Accepted: 09/04/2012] [Indexed: 01/04/2023] Open
Abstract
We showed that α-bisabolol is active against primary acute leukemia cells, including BCR-ABL+ acute lymphoblastic leukemias (ALL). Here we studied the activity of α-bisabolol against BCR-ABL+ cells using 3 cell lines (K562, LAMA-84, CML-T1) and 10 primary BCR-ABL+ ALL samples. We found that: (a) α-bisabolol was effective in reducing BCR-ABL+ cell viabilty at concentrations ranging from 53 to 73 µM; (b) α-bisabolol concentrations in BCR-ABL+ cellular compartments were 4- to 12-fold higher than in normal cells, thus indicating a preferential intake in neoplastic cells; (c) α-bisabolol displayed a slight to strong synergism with the Tyrosine Kinase Inhibitors (TKI) imatinib and nilotinib: the combination of α-bisabolol+imatinib allowed a dose reduction of each compound up to 7.2 and 9.4-fold respectively, while the combination of α-bisabolol+nilotinib up to 6.7 and 5-fold respectively; (d) α-bisabolol-induced apoptosis was associated with loss of plasma membrane integrity, irreversible opening of mitochondrial transition pore, disruption of mitochondrial potential, inhibition of oxygen consumption and increase of intracellular reactive oxygen species. These data indicate α-bisabolol as a candidate for treatment of BCR-ABL+ leukemias to overcome resistance to TKI alone and to target leukemic cells through BCR-ABL-independent pathways.
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Affiliation(s)
| | - Antonella Rigo
- Department of Medicine, Section of Hematology, University of Verona, Verona, Italy
| | - Emanuele Guardalben
- Department of Medicine, Section of Hematology, University of Verona, Verona, Italy
| | - Christian Bergamini
- Department of Biochemistry “G. Moruzzi”, University of Bologna, Bologna, Italy
| | - Elisabetta Cavalieri
- Department of Life and Reproduction Sciences, Section of Biochemistry, University of Verona, Verona, Italy
| | - Romana Fato
- Department of Biochemistry “G. Moruzzi”, University of Bologna, Bologna, Italy
| | - Giovanni Pizzolo
- Department of Medicine, Section of Hematology, University of Verona, Verona, Italy
| | - Hisanori Suzuki
- Department of Life and Reproduction Sciences, Section of Biochemistry, University of Verona, Verona, Italy
| | - Fabrizio Vinante
- Department of Medicine, Section of Hematology, University of Verona, Verona, Italy
- * E-mail:
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Kurdi M, Sivakumaran V, Duhé RJ, Aon MA, Paolocci N, Booz GW. Depletion of cellular glutathione modulates LIF-induced JAK1-STAT3 signaling in cardiac myocytes. Int J Biochem Cell Biol 2012; 44:2106-15. [PMID: 22939972 DOI: 10.1016/j.biocel.2012.08.016] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2012] [Revised: 08/10/2012] [Accepted: 08/15/2012] [Indexed: 12/30/2022]
Abstract
Previously we reported that the sesquiterpene lactone parthenolide induces oxidative stress in cardiac myocytes, which blocks Janus kinase (JAK) activation by the interleukin 6 (IL-6)-type cytokines. One implication suggested by this finding is that IL-6 signaling is dependent upon cellular anti-oxidant defenses or redox status. Therefore, the present study was undertaken to directly test the hypothesis that JAK1 signaling by the IL-6-type cytokines in cardiac myocytes is impaired by glutathione (GSH) depletion, since this tripeptide is one of the major anti-oxidant molecules and redox-buffers in cells. Cardiac myocytes were pretreated for 6h with l-buthionine-sulfoximine (BSO) to inhibit GSH synthesis. After 24h, cells were dosed with the IL-6-like cytokine, leukemia inhibitory factor (LIF). BSO treatment decreased GSH levels and dose-dependently attenuated activation of JAK1, Signal Transducer and Activator of Transcription 3 (STAT3), and extracellular signal regulated kinases 1 and 2 (ERK1/2). Addition of glutathione monoethyl ester, which is cleaved intracellularly to GSH, prevented attenuation of LIF-induced JAK1 and STAT3 activation, as did the reductant N-acetyl-cysteine. Unexpectedly, LIF-induced STAT1 activation was unaffected by GSH depletion. Evidence was found that STAT3 is more resistant than STAT1 to intermolecular disulfide bond formation under oxidizing conditions and more likely to retain the monomeric form, suggesting that conformational differences explain the differential effect of GSH depletion on STAT1 and STAT3. Overall, our findings indicate that activation of both JAK1 and STAT3 is redox-sensitive and the character of IL-6 type cytokine signaling in cardiac myocytes is sensitive to changes in the cellular redox status. In cardiac myocytes, activation of STAT1 may be favored over STAT3 under oxidizing conditions due to GSH depletion and/or augmented reactive oxygen species production, such as in ischemia-reperfusion and heart failure.
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Affiliation(s)
- Mazen Kurdi
- Department of Chemistry and Biochemistry, Lebanese University, Rafic Hariri Educational Campus, Hadath, Lebanon.
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Zgheib C, Kurdi M, Zouein FA, Gunter BW, Stanley BA, Zgheib J, Romero DG, King SB, Paolocci N, Booz GW. Acyloxy nitroso compounds inhibit LIF signaling in endothelial cells and cardiac myocytes: evidence that STAT3 signaling is redox-sensitive. PLoS One 2012; 7:e43313. [PMID: 22905257 PMCID: PMC3419695 DOI: 10.1371/journal.pone.0043313] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2012] [Accepted: 07/19/2012] [Indexed: 12/31/2022] Open
Abstract
We previously showed that oxidative stress inhibits leukemia inhibitory factor (LIF) signaling by targeting JAK1, and the catalytic domains of JAK 1 and 2 have a cysteine-based redox switch. Thus, we postulated that the NO sibling and thiophylic compound, nitroxyl (HNO), would inhibit LIF-induced JAK-STAT3 activation. Pretreatment of human microvascular endothelial cells (HMEC-1) or neonatal rat cardiomyocytes with the HNO donors Angeli’s salt or nitrosocyclohexyl acetate (NCA) inhibited LIF-induced STAT3 activation. NCA pretreatment also blocked the induction of downstream inflammatory genes (e.g. intercellular adhesion molecule 1, CCAAT/enhancer binding protein delta). The related 1-nitrosocyclohexyl pivalate (NCP; not a nitroxyl donor) was equally effective in inhibiting STAT3 activation, suggesting that these compounds act as thiolate targeting electrophiles. The JAK1 redox switch is likely not a target of acyloxy nitroso compounds, as NCA had no effect on JAK1 catalytic activity and only modestly affected JAK1-induced phosphorylation of the LIF receptor. However, pretreatment of recombinant human STAT3 with NCA or NCP reduced labeling of free sulfhydryl residues. We show that NCP in the presence of diamide enhanced STAT3 glutathionylation and dimerization in adult mouse cardiac myocytes and altered STAT3 under non-reducing conditions. Finally, we show that monomeric STAT3 levels are decreased in the Gαq model of heart failure in a redox-sensitive manner. Altogether, our evidence indicates that STAT3 has redox-sensitive cysteines that regulate its activation and are targeted by HNO donors and acyloxy nitroso compounds. These findings raise the possibility of new therapeutic strategies to target STAT3 signaling via a redox-dependent manner, particularly in the context of cardiac and non-cardiac diseases with prominent pro-inflammatory signaling.
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Affiliation(s)
- Carlos Zgheib
- Departments of Pharmacology and Toxicology, School of Medicine, and Center for Excellence in Cardiovascular-Renal Research, The University of Mississippi Medical Center, Jackson, Mississippi, United States of America
| | - Mazen Kurdi
- Department of Chemistry and Biochemistry, Faculty of Sciences, Lebanese University, Rafic Hariri Educational Campus, Hadath, Lebanon
| | - Fouad A. Zouein
- Departments of Pharmacology and Toxicology, School of Medicine, and Center for Excellence in Cardiovascular-Renal Research, The University of Mississippi Medical Center, Jackson, Mississippi, United States of America
| | - Barak W. Gunter
- Departments of Pharmacology and Toxicology, School of Medicine, and Center for Excellence in Cardiovascular-Renal Research, The University of Mississippi Medical Center, Jackson, Mississippi, United States of America
| | - Brian A. Stanley
- Division of Cardiology, Johns Hopkins Medical Institutions, Baltimore, Maryland, United States of America
| | - Joe Zgheib
- Department of Medicine, Division of Cardiology, Centre Hospitalier Universitaire de Nancy, Brabois, France
| | - Damian G. Romero
- Department of Biochemistry, School of Medicine, and Center for Excellence in Cardiovascular-Renal Research, The University of Mississippi Medical Center, Jackson, Mississippi, United States of America
| | - S. Bruce King
- Department of Chemistry, Wake Forest University, Winston-Salem, North Carolina, United States of America
| | - Nazareno Paolocci
- Division of Cardiology, Johns Hopkins Medical Institutions, Baltimore, Maryland, United States of America
- Clinical Medicine Department, Section of General Pathology, University of Perugia, Perugia, Italy
| | - George W. Booz
- Departments of Pharmacology and Toxicology, School of Medicine, and Center for Excellence in Cardiovascular-Renal Research, The University of Mississippi Medical Center, Jackson, Mississippi, United States of America
- * E-mail:
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Weng CJ, Chou CP, Ho CT, Yen GC. Molecular mechanism inhibiting human hepatocarcinoma cell invasion by 6-shogaol and 6-gingerol. Mol Nutr Food Res 2012; 56:1304-14. [PMID: 22714996 DOI: 10.1002/mnfr.201200173] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2012] [Revised: 04/20/2012] [Accepted: 04/25/2012] [Indexed: 12/30/2022]
Abstract
SCOPE We previously demonstrated that 6-shogaol and 6-gingerol, two active compounds in ginger (Zingiber officinale), possess antiinvasive activity against highly metastatic hepatoma cells. The aims of this study were to evaluate the inhibitory effect and molecular mechanism underlying the transcription and translation of matrix metalloproteinases (MMPs) and urokinase-type plasminogen activator (uPA) in Hep3B cells as well as the antiangiogenic activity of 6-gingerol and 6-shogaol. METHODS AND RESULTS By gelatin zymography and luciferase reporter gene assays, we found that 6-gingerol and 6-shogaol regulate MMP-2/-9 transcription. Moreover, 6-gingerol directly decreased expression of uPA, but the 6-shogaol-mediated decrease in uPA was accompanied by up-regulation of plasminogen activator inhibitor (PAI)-1. 6-Gingerol and 6-shogaol concentrations of ≥ 10 μM and ≥ 2.5 μM, respectively, significantly inhibited the phosphorylation of mitogen-activated protein kinase (MAPK) and PI3K/Akt signaling, the activation of NF-κB, and the translocation of NF-κB and STAT3. Incubation of 6-gingerol or 6-shogaol with human umbilical vein endothelial cells or rat aortas significantly attenuated tube formation. CONCLUSION 6-Shogaol and 6-gingerol effectively inhibit invasion and metastasis of hepatocellular carcinoma through diverse molecular mechanisms, including inhibition of the MAPK and PI3k/Akt pathways and NF-κB and STAT3 activities to suppress expression of MMP-2/-9 and uPA and block angiogenesis.
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Affiliation(s)
- Chia-Jui Weng
- Graduate Institute of Applied Science of Living, Tainan University of Technology, Yongkang, Tainan, Taiwan
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