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Zhang X, Chen Y, Hao L, Hou A, Chen X, Li Y, Wang R, Luo P, Ruan Z, Ou J, Shi C, Miao H, Liang H. Macrophages induce resistance to 5-fluorouracil chemotherapy in colorectal cancer through the release of putrescine. Cancer Lett 2016; 381:305-13. [PMID: 27514455 DOI: 10.1016/j.canlet.2016.08.004] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Revised: 07/30/2016] [Accepted: 08/04/2016] [Indexed: 10/21/2022]
Abstract
The development of chemoresistance to 5-fluorouracil (5-FU) is a major obstacle for sustained effective treatment of colorectal cancer (CRC), with the mechanisms being not fully understood. Here we demonstrated that tumor associated macrophages (TAMs) became activated during treatment with 5-FU and secreted factors that protected the CRC cells against chemotherapy with 5-FU. By performing metabolomics analysis, we identified putrescine, a member of polyamines, inducing resistance to 5-FU-triggered CRC apoptosis and tumor suppression via JNK-caspase-3 pathway. Noteworthily, either pharmacological or genetic blockage of ornithine decarboxylase (ODC) prevented TAMs-induced chemoresistance to 5-FU in vitro and in vivo. Our findings show that TAMs are potent mediators of resistance to 5-FU chemotherapy and uncover potential targets to enhance chemotherapy sensitivity in patients with CRC.
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Affiliation(s)
- Xuan Zhang
- Department of Oncology, Southwest Hospital, Third Military Medical University, Chongqing 400038, China
| | - Yujuan Chen
- Department of Oncology, Southwest Hospital, Third Military Medical University, Chongqing 400038, China
| | - Lijun Hao
- Department of Oncology, Southwest Hospital, Third Military Medical University, Chongqing 400038, China
| | - Along Hou
- Department of Biochemistry and Molecular Biology, Third Military Medical University, Chongqing 400038, China
| | - Xiaozhen Chen
- Department of Oncology, Southwest Hospital, Third Military Medical University, Chongqing 400038, China
| | - Yifei Li
- Department of Oncology, Southwest Hospital, Third Military Medical University, Chongqing 400038, China
| | - Rui Wang
- Department of Biochemistry and Molecular Biology, Third Military Medical University, Chongqing 400038, China
| | - Peng Luo
- Institute of Combined Injury, State Key Laboratory of Trauma, Burns and Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Third Military Medical University, Chongqing 400038, China
| | - Zhihua Ruan
- Department of Oncology, Southwest Hospital, Third Military Medical University, Chongqing 400038, China
| | - Juanjuan Ou
- Department of Oncology, Southwest Hospital, Third Military Medical University, Chongqing 400038, China
| | - Chunmeng Shi
- Institute of Combined Injury, State Key Laboratory of Trauma, Burns and Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Third Military Medical University, Chongqing 400038, China
| | - Hongming Miao
- Department of Oncology, Southwest Hospital, Third Military Medical University, Chongqing 400038, China; Department of Biochemistry and Molecular Biology, Third Military Medical University, Chongqing 400038, China.
| | - Houjie Liang
- Department of Oncology, Southwest Hospital, Third Military Medical University, Chongqing 400038, China.
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Isaak CK, Petkau JC, O K, Debnath SC, Siow YL. Manitoba Lingonberry (Vaccinium vitis-idaea) Bioactivities in Ischemia-Reperfusion Injury. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2015; 63:5660-5669. [PMID: 26024018 DOI: 10.1021/acs.jafc.5b00797] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Evidence for the efficacy of dietary interventions in protecting against cardiovascular disease has grown significantly, with flavonoids and anthocyanins receiving special attention. Lingonberry (Vaccinium vitis-idaea L.) is a good source of these compounds, and this study examined the protective effects of wild lingonberry found in Manitoba, Canada, against ischemia-reperfusion (IR) injury. Manitoba lingonberry contained 3793 ± 27 mg gallic acid equiv, 120,501 ± 7651 μmol trolox equiv, and 575 ± 20 mg cyanidin-3-glucoside equiv per 100 g dry weight, which correspond with high total phenolic content, antioxidant activity, and anthocyanin content, respectively. A complete methanolic extract and both anthocyanin-rich and phenolic-rich fractions inhibited apoptosis in H9c2 cells during simulated IR. Lingonberry extract and fractions significantly inhibited several markers of apoptosis induced by IR, including nuclei condensation, caspase-3 activation, and MAP kinase signaling. These results provide the first analysis of Manitoba lingonberry and highlight the mechanistic importance of dietary berry compounds for cardiovascular health.
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Affiliation(s)
- Cara K Isaak
- §Physiology and Pathophysiology, University of Manitoba, 432 Basic Medical Sciences Building, 745 Bannatyne Avenue, Winnipeg, Manitoba, Canada R3E 0J9
| | | | - Karmin O
- §Physiology and Pathophysiology, University of Manitoba, 432 Basic Medical Sciences Building, 745 Bannatyne Avenue, Winnipeg, Manitoba, Canada R3E 0J9
- ⊗Animal Science, University of Manitoba, 201-12 Dafoe Road, Winnipeg, Manitoba, Canada R3T 2N2
| | - Samir C Debnath
- ⊥Atlantic Cool Climate Crop Research Centre, Agriculture and Agri-Food Canada, St. John's, Newfoundland, Canada A1E 0B2
| | - Yaw L Siow
- §Physiology and Pathophysiology, University of Manitoba, 432 Basic Medical Sciences Building, 745 Bannatyne Avenue, Winnipeg, Manitoba, Canada R3E 0J9
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3
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Geng ZH, Huang L, Song MB, Song YM. Cardiovascular effects in vitro of a polysaccharide from Salvia miltiorrhiza. Carbohydr Polym 2015; 121:241-7. [DOI: 10.1016/j.carbpol.2014.12.038] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2014] [Revised: 11/30/2014] [Accepted: 12/13/2014] [Indexed: 01/01/2023]
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4
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Adnan H, Antenos M, Kirby GM. The effect of menadione on glutathione S-transferase A1 (GSTA1): c-Jun N-terminal kinase (JNK) complex dissociation in human colonic adenocarcinoma Caco-2 cells. Toxicol Lett 2012; 214:53-62. [PMID: 22906494 DOI: 10.1016/j.toxlet.2012.08.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2012] [Revised: 08/05/2012] [Accepted: 08/07/2012] [Indexed: 12/23/2022]
Abstract
Glutathione S-transferases (GSTs) act as modulators of mitogen-activated protein kinase signal transduction pathways via a mechanism involving protein-protein interactions. We have demonstrated that GSTA1 forms complexes with JNK and modifies JNK activation during cellular stress, but the factors that influence complex association and dissociation are unknown. We hypothesized that menadione causes dissociation of GSTA1-JNK complexes, activates JNK, and the consequences of menadione exposure depend on GSTA1 expression. We demonstrate that menadione causes GSTA1-JNK dissociation and JNK activation in preconfluent Caco-2 cells, whereas postconfluent cells are resistant to this effect. Moreover, preconfluent cells are more sensitive than postconfluent cells to menadione-induced cytotoxicity. Activation of JNK is transient since removal of menadione causes GSTA1 to re-associate with JNK reducing cytotoxicity. Over-expression and knockdown of GSTA1 did not alter JNK activation by menadione or sensitivity to menadione-induced cytotoxicity. These results indicate that GSTA1-JNK complex integrity does not affect the ability of menadione to activate JNK. N-acetyl cysteine prevents GSH depletion and blocks menadione-induced complex dissociation, JNK activation and inhibits menadione-induced cytotoxicity. JNK activation and inhibits menadione-induced cytotoxicity. The data suggest that the mechanism of menadione-induced JNK activation involves the production of reactive oxygen species, likely superoxide anion, and intracellular GSH levels play an important role in preventing GSTA1-JNK complex dissociation, subsequent JNK activation and induction of cytotoxicity.
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Affiliation(s)
- Humaira Adnan
- Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, Ontario, Canada
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Stulpinas A, Imbrasaitė A, Kalvelytė AV. Daunorubicin induces cell death via activation of apoptotic signalling pathway and inactivation of survival pathway in muscle-derived stem cells. Cell Biol Toxicol 2012; 28:103-14. [PMID: 22252735 DOI: 10.1007/s10565-011-9210-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2011] [Accepted: 12/26/2011] [Indexed: 02/02/2023]
Abstract
Daunorubicin (as well as other anthracyclines) is known to be toxic to heart cells and other cells in organism thus limiting its applicability in human cancer therapy. To investigate possible mechanisms of daunorubicin cytotoxicity, we used stem cell lines derived from adult rabbit skeletal muscle. Recently, we have shown that daunorubicin induces apoptotic cell death in our cell model system and distinctly influences the activity of MAP kinases. Here, we demonstrate that two widely accepted antagonistic signalling pathways namely proapoptotic JNK and prosurvival PI3K/AKT participate in apoptosis. Using the Western blot method, we observed the activation of JNK and phosphorylation of its direct target c-Jun along with inactivation of AKT and its direct target GSK in the course of programmed cell death. By means of small-molecule kinase inhibitors and transfection of cells with the genes of the components of these pathways, c-Jun and AKT, we confirm that JNK signalling pathway is proapoptotic, whereas AKT is antiapoptotic in daunorubicin-induced muscle cells. These findings could contribute to new approaches which will result in less toxicity and fewer side effects that are currently associated with the use of daunorubicin in cancer therapies.
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Affiliation(s)
- Aurimas Stulpinas
- Vilnius University Institute of Biochemistry, Mokslininkų 12, Vilnius, 08662, Lithuania.
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Sun X, Sun GB, Wang M, Xiao J, Sun XB. Protective effects of cynaroside against H2O2-induced apoptosis in H9c2 cardiomyoblasts. J Cell Biochem 2011; 112:2019-29. [DOI: 10.1002/jcb.23121] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Rutin from Lonicera japonica inhibits myocardial ischemia/reperfusion-induced apoptosis in vivo and protects H9c2 cells against hydrogen peroxide-mediated injury via ERK1/2 and PI3K/Akt signals in vitro. Food Chem Toxicol 2009; 47:1569-76. [DOI: 10.1016/j.fct.2009.03.044] [Citation(s) in RCA: 71] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2008] [Revised: 03/06/2009] [Accepted: 03/31/2009] [Indexed: 02/07/2023]
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MAPK signalling in skeletal muscle-derived stem cells after daunorubicin treatment. ACTA ACUST UNITED AC 2009. [DOI: 10.2478/v10054-008-0045-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Villamena FA, Liu Y, Zweier JL. Superoxide radical anion adduct of 5,5-dimethyl-1-pyrroline N-oxide. 4. Conformational effects on the EPR hyperfine splitting constants. J Phys Chem A 2009; 112:12607-15. [PMID: 19012384 DOI: 10.1021/jp8070579] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Spin trapping has been commonly employed in the detection of superoxide radical anion in chemical and biological systems; hence, accurate interpretation of the hyperfine splitting constants (hfsc's) arising from the O(2)(*-) adducts (also referred to as hydroperoxyl (HO(2)(*)) radical adducts) of various nitrones is important. In this work, the nature of the relevant hfsc's was investigated by examining the effect of conformational changes in the hydroperoxyl moiety of the O(2)(*-) adducts of 5,5-dimethyl-1-pyrroline N-oxide (DMPO), 5-ethoxycarbonyl-5-methyl-1-pyrroline N-oxide (EMPO), 5-diethoxyphosphoryl-5-methyl-1-pyrroline N-oxide (DEPMPO), 5-carbamoyl-5-methyl-1-pyrroline N-oxide (AMPO), and 7-oxa-1-azaspiro[4.4]non-1-en-6-one N-oxide, (CPCOMPO) on the magnitude of a(N), a(beta-H), and a(gamma-H). Conformational change around the substituents and their effect on the hfsc's were also explored. Results indicate that a(beta-H) is most sensitive to conformational changes of the hydroperoxyl and substituent groups relative to hfsc's of other nuclei. The orbital overlap between the C-H sigma-orbital and the SOMO of the nitroxyl nitrogen plays a crucial factor in determining the magnitude of the a(beta-H). The hfsc values for the O(2)(*-) adducts were predicted with high accuracy by using a low-cost computational method at the PCM(water)/BHandHLYP/EPR-III//B3LYP/6-31G* level of theory without taking into account the explicit water interaction.
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Stathopoulou K, Beis I, Gaitanaki C. MAPK signaling pathways are needed for survival of H9c2 cardiac myoblasts under extracellular alkalosis. Am J Physiol Heart Circ Physiol 2008; 295:H1319-H1329. [DOI: 10.1152/ajpheart.01362.2007] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
pH is one of the most important physiological parameters, with its changes affecting the function of vital organs like the heart. However, the effects of alkalosis on the regulation of cardiac myocyte function have not been extensively investigated. Therefore, we decided to study whether the mitogen-activated protein kinase (MAPK) signaling pathways [c-Jun NH2-terminal kinases (JNKs), extracellular signal-regulated kinases (ERKs), and p38 MAPK] are activated by alkalosis induced with Tris-Tyrode buffer at two pH values, 8.5 and 9.5, in H9c2 rat cardiac myoblasts. These buffers also induced intracellular alkalinization comparable to that induced by 1 mM NH4Cl. The three MAPKs examined presented differential phosphorylation patterns that depended on the severity and the duration of the stimulus. Inhibition of Na+/H+ exchanger (NHE)1 by its inhibitor HOE-642 prevented alkalinization and partially attenuated the alkalosis (pH 8.5)-induced activation of these kinases. The same stimulus also promoted c-Jun phosphorylation and enhanced the binding at oligonucleotides bearing the activator protein-1 (AP-1) consensus sequence, all in a JNK-dependent manner. Additionally, mitogen- and stress-activated kinase 1 (MSK1) was transiently phosphorylated by alkalosis (pH 8.5), and this was abolished by the selective inhibitors of either p38 MAPK or ERK pathways. JNKs also mediated Bcl-2 phosphorylation in response to incubation with the alkaline medium (pH 8.5), while selective inhibitors of the three MAPKs diminished cell viability under these conditions. All these data suggest that alkalosis activates MAPKs in H9c2 cells and these kinases, in turn, modify proteins that regulate gene transcription and cell survival.
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