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Akbar S, Rahman A, Ahmad N, Imran M, Hafeez Z. Understanding the Role of Polyunsaturated Fatty Acids in the Development and Prevention of Cancer. Cancer Treat Res 2024; 191:57-93. [PMID: 39133404 DOI: 10.1007/978-3-031-55622-7_3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/13/2024]
Abstract
Polyunsaturated fatty acids (PUFAs), notably omega-3 (n-3) and omega-6 (n-6), have received much attention owing to their multifaceted effects not only in the management of diverse pathological conditions but also in the maintenance of overall health of an individual. A disproportionately high n-6 to n-3 ratio contributes to the development of various disorders including cancer, which ranks as a leading cause of death worldwide with profound social and economic burden. Epidemiological studies and clinical trials combined with the animal and cell culture models have demonstrated the beneficial effects of n-3 PUFAs in reducing the risk of various cancer types including breast, prostate and colon cancer. The anti-cancer actions of n-3 PUFAs are mainly attributed to their role in the modulation of a wide array of cellular processes including membrane dynamics, apoptosis, inflammation, angiogenesis, oxidative stress, gene expression and signal transduction pathways. On the contrary, n-6 PUFAs have been shown to exert pro-tumor actions; however, the inconsistent findings and controversial data emphasize upon the need to further investigation. Nevertheless, one of the biggest challenges in future is to optimize the n-6 to n-3 ratio despite the genetic predisposition, age, gender and disease severity. Moreover, a better understanding of the potential risks and benefits as well as the cellular and molecular mechanisms of the basic actions of these PUFAs is required to explore their role as adjuvants in cancer therapy. All these aspects will be reviewed in this chapter.
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Affiliation(s)
- Samina Akbar
- CALBINOTOX, Université de Lorraine, 54000, Nancy, France.
| | - Abdur Rahman
- Atta ur Rahman School of Applied Biosciences, National University of Sciences and Technology, Islamabad, Pakistan
| | - Nazir Ahmad
- Faculty of Life Sciences, Institute of Home and Food Sciences, Government College University, Faisalabad, Pakistan
| | - Muhammad Imran
- Department of Biosciences, Faculty of Sciences, COMSATS Institute of Information Technology, Park Road, Islamabad, Pakistan
| | - Zeeshan Hafeez
- CALBINOTOX, Université de Lorraine, 54000, Nancy, France
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Lopez-Charcas O, Pukkanasut P, Velu SE, Brackenbury WJ, Hales TG, Besson P, Gomora JC, Roger S. Pharmacological and nutritional targeting of voltage-gated sodium channels in the treatment of cancers. iScience 2021; 24:102270. [PMID: 33817575 PMCID: PMC8010468 DOI: 10.1016/j.isci.2021.102270] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Voltage-gated sodium (NaV) channels, initially characterized in excitable cells, have been shown to be aberrantly expressed in non-excitable cancer tissues and cells from epithelial origins such as in breast, lung, prostate, colon, and cervix, whereas they are not expressed in cognate non-cancer tissues. Their activity was demonstrated to promote aggressive and invasive potencies of cancer cells, both in vitro and in vivo, whereas their deregulated expression in cancer tissues has been associated with metastatic progression and cancer-related death. This review proposes NaV channels as pharmacological targets for anticancer treatments providing opportunities for repurposing existing NaV-inhibitors or developing new pharmacological and nutritional interventions.
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Affiliation(s)
- Osbaldo Lopez-Charcas
- Université de Tours, EA4245 Transplantation, Immunologie, Inflammation, Faculté de Médecine de Tours, 10 Boulevard Tonnellé, 37032 Tours, France
| | - Piyasuda Pukkanasut
- Department of Chemistry, The University of Alabama at Birmingham, CHEM 280. 901, 14th Street S, Birmingham, AL 35294, USA
| | - Sadanandan E. Velu
- Department of Chemistry, The University of Alabama at Birmingham, CHEM 280. 901, 14th Street S, Birmingham, AL 35294, USA
| | - William J. Brackenbury
- Department of Biology, York Biomedical Research Institute, University of York, Heslington, York YO10 5DD, UK
| | - Tim G. Hales
- Institute of Academic Anaesthesia, Division of Systems Medicine, School of Medicine, the University of Dundee, DD1 9SY, Dundee, UK
| | - Pierre Besson
- Université de Tours, EA4245 Transplantation, Immunologie, Inflammation, Faculté de Médecine de Tours, 10 Boulevard Tonnellé, 37032 Tours, France
| | - Juan Carlos Gomora
- Instituto de Fisiología Celular, Circuito Exterior s/n Ciudad Universitaria, Universidad Nacional Autónoma de México, Mexico City, 04510 México
| | - Sébastien Roger
- Université de Tours, EA4245 Transplantation, Immunologie, Inflammation, Faculté de Médecine de Tours, 10 Boulevard Tonnellé, 37032 Tours, France
- Institut Universitaire de France, 75005 Paris, France
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Bustamante-Marin XM, Merlino JL, Devericks E, Carson MS, Hursting SD, Stewart DA. Mechanistic Targets and Nutritionally Relevant Intervention Strategies to Break Obesity-Breast Cancer Links. Front Endocrinol (Lausanne) 2021; 12:632284. [PMID: 33815289 PMCID: PMC8011316 DOI: 10.3389/fendo.2021.632284] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Accepted: 02/17/2021] [Indexed: 12/29/2022] Open
Abstract
The worldwide prevalence of overweight and obesity has tripled since 1975. In the United States, the percentage of adults who are obese exceeds 42.5%. Individuals with obesity often display multiple metabolic perturbations, such as insulin resistance and persistent inflammation, which can suppress the immune system. These alterations in homeostatic mechanisms underlie the clinical parameters of metabolic syndrome, an established risk factor for many cancers, including breast cancer. Within the growth-promoting, proinflammatory milieu of the obese state, crosstalk between adipocytes, immune cells and breast epithelial cells occurs via obesity-associated hormones, angiogenic factors, cytokines, and other mediators that can enhance breast cancer risk and/or progression. This review synthesizes evidence on the biological mechanisms underlying obesity-breast cancer links, with emphasis on emerging mechanism-based interventions in the context of nutrition, using modifiable elements of diet alone or paired with physical activity, to reduce the burden of obesity on breast cancer.
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Affiliation(s)
| | - Jenna L. Merlino
- Department of Nutrition, University of North Carolina, Chapel Hill, NC, United States
| | - Emily Devericks
- Department of Nutrition, University of North Carolina, Chapel Hill, NC, United States
| | - Meredith S. Carson
- Department of Nutrition, University of North Carolina, Chapel Hill, NC, United States
| | - Stephen D. Hursting
- Department of Nutrition, University of North Carolina, Chapel Hill, NC, United States
- Nutrition Research Institute, University of North Carolina, Kannapolis, NC, United States
| | - Delisha A. Stewart
- Department of Nutrition, University of North Carolina, Chapel Hill, NC, United States
- Nutrition Research Institute, University of North Carolina, Kannapolis, NC, United States
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Oxidative stress and cancer: Role of n-3 PUFAs. Cancer 2021. [DOI: 10.1016/b978-0-12-819547-5.00022-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Goupille C, Vibet S, Frank PG, Mahéo K. EPA and DHA Fatty Acids Induce a Remodeling of Tumor Vasculature and Potentiate Docetaxel Activity. Int J Mol Sci 2020; 21:ijms21144965. [PMID: 32674321 PMCID: PMC7404030 DOI: 10.3390/ijms21144965] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 07/07/2020] [Accepted: 07/09/2020] [Indexed: 01/16/2023] Open
Abstract
n-3 long chain Polyunsaturated Fatty Acids (n-3 LCPUFA) have been shown to improve the efficacy of conventional chemotherapies used for breast cancer treatment. In addition to their reported ability to increase the chemosensitivity of cancer cells, we hypothesized that n-3 LCPUFA could induce a remodeling of the vascular network in mammary tumors. A contrast-enhanced ultrasound method was used to monitor the vascular architecture during docetaxel treatment of mammary tumors in rats fed either a control or an n-3 LCPUFA-enriched diet (docosahexaenoic acid (DHA)/eicosapentaenoic acid (EPA)). The vascular network was remodeled in favor of smaller vessels (microvascularization), which represented 54% of the vasculature in n-3 LCPUFA tumors but only 26% in control tumors after 2 weeks of chemotherapy. Importantly, vascularization changes occurred both before and during docetaxel treatment. The density of smaller vessels quantified before chemotherapy was correlated with improved tumor size reduction by docetaxel treatment. Furthermore, transcript levels of the angiogenesis-specific genes epiregulin and amphiregulin were reduced by ~4.5- and twofold in tumors obtained from rats fed an n-3 LCPUFA-enriched diet compared to those of rats fed a control diet, respectively. Their expression levels were negatively correlated with tumor regression after chemotherapy. Taken together, this preclinical data strengthen the potential usefulness of n-3 LCPUFA as a complementary clinical strategy to improve drug efficiency via remodeling of the tumor vasculature.
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Affiliation(s)
- Caroline Goupille
- Laboratoire Nutrition, Croissance et Cancer, N2C UMR 1069, University of Tours, INSERM, F-37032 Tours, France; (C.G.); (S.V.); (P.G.F.)
- Service gynécologie, CHRU (Centre Hospitalier Régional Universitaire) de Tours, Hôpital “Bretonneau”, F-37044 Tours CEDEX 09, France
| | - Sophie Vibet
- Laboratoire Nutrition, Croissance et Cancer, N2C UMR 1069, University of Tours, INSERM, F-37032 Tours, France; (C.G.); (S.V.); (P.G.F.)
- Service gynécologie, CHRU (Centre Hospitalier Régional Universitaire) de Tours, Hôpital “Bretonneau”, F-37044 Tours CEDEX 09, France
| | - Philippe G. Frank
- Laboratoire Nutrition, Croissance et Cancer, N2C UMR 1069, University of Tours, INSERM, F-37032 Tours, France; (C.G.); (S.V.); (P.G.F.)
| | - Karine Mahéo
- Laboratoire Nutrition, Croissance et Cancer, N2C UMR 1069, University of Tours, INSERM, F-37032 Tours, France; (C.G.); (S.V.); (P.G.F.)
- Laboratoire de Physiologie, Faculté de Pharmacie, F-37200 Tours, France
- Correspondence: ; Tel.: +33-(0)2-47-36-62-13
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Fontaine D, Figiel S, Félix R, Kouba S, Fromont G, Mahéo K, Potier-Cartereau M, Chantôme A, Vandier C. Roles of endogenous ether lipids and associated PUFAs in the regulation of ion channels and their relevance for disease. J Lipid Res 2020; 61:840-858. [PMID: 32265321 PMCID: PMC7269763 DOI: 10.1194/jlr.ra120000634] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 03/29/2020] [Indexed: 12/16/2022] Open
Abstract
Ether lipids (ELs) are lipids characterized by the presence of either an ether linkage (alkyl lipids) or a vinyl ether linkage [i.e., plasmalogens (Pls)] at the sn1 position of the glycerol backbone, and they are enriched in PUFAs at the sn2 position. In this review, we highlight that ELs have various biological functions, act as a reservoir for second messengers (such as PUFAs) and have roles in many diseases. Some of the biological effects of ELs may be associated with their ability to regulate ion channels that control excitation-contraction/secretion/mobility coupling and therefore cell physiology. These channels are embedded in lipid membranes, and lipids can regulate their activities directly or indirectly as second messengers or by incorporating into membranes. Interestingly, ELs and EL-derived PUFAs have been reported to play a key role in several pathologies, including neurological disorders, cardiovascular diseases, and cancers. Investigations leading to a better understanding of their mechanisms of action in pathologies have opened a new field in cancer research. In summary, newly identified lipid regulators of ion channels, such as ELs and PUFAs, may represent valuable targets to improve disease diagnosis and advance the development of new therapeutic strategies for managing a range of diseases and conditions.
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Affiliation(s)
- Delphine Fontaine
- Inserm N2C UMR1069, Université de Tours, F-37032 Tours CEDEX 1, France
| | - Sandy Figiel
- Inserm N2C UMR1069, Université de Tours, F-37032 Tours CEDEX 1, France
| | - Romain Félix
- Inserm N2C UMR1069, Université de Tours, F-37032 Tours CEDEX 1, France
| | - Sana Kouba
- Inserm N2C UMR1069, Université de Tours, F-37032 Tours CEDEX 1, France
| | - Gaëlle Fromont
- Inserm N2C UMR1069, Université de Tours, F-37032 Tours CEDEX 1, France; Department of Pathology, CHRU Bretonneau, F-37044 Tours CEDEX 9, France
| | - Karine Mahéo
- Inserm N2C UMR1069, Université de Tours, F-37032 Tours CEDEX 1, France; Faculté de Pharmacie, Université de Tours, F-37200 Tours, France
| | | | - Aurélie Chantôme
- Inserm N2C UMR1069, Université de Tours, F-37032 Tours CEDEX 1, France; Faculté de Pharmacie, Université de Tours, F-37200 Tours, France
| | - Christophe Vandier
- Inserm N2C UMR1069, Université de Tours, F-37032 Tours CEDEX 1, France. mailto:
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A Novel Calcium-Mediated EMT Pathway Controlled by Lipids: An Opportunity for Prostate Cancer Adjuvant Therapy. Cancers (Basel) 2019; 11:cancers11111814. [PMID: 31752242 PMCID: PMC6896176 DOI: 10.3390/cancers11111814] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 10/31/2019] [Accepted: 11/12/2019] [Indexed: 01/26/2023] Open
Abstract
The composition of periprostatic adipose tissue (PPAT) has been shown to play a role in prostate cancer (PCa) progression. We recently reported an inverse association between PCa aggressiveness and elevated PPAT linoleic acid (LA) and eicosapentaenoic acid (EPA) content. In the present study, we identified a new signaling pathway with a positive feedback loop between the epithelial-to-mesenchymal transition (EMT) transcription factor Zeb1 and the Ca2+-activated K+ channel SK3, which leads to an amplification of Ca2+ entry and cellular migration. Using in vitro experiments and ex vivo cultures of human PCa slices, we demonstrated that LA and EPA exert anticancer effects, by modulating Ca2+ entry, which was involved in Zeb1 regulation and cancer cellular migration. This functional approach using human prostate tumors highlights the clinical relevance of our observations, and may allow us to consider the possibility of targeting cancer spread by altering the lipid microenvironment.
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Avril P, Vidal L, Barille-Nion S, Le Nail LR, Redini F, Layrolle P, Pinault M, Chevalier S, Perrot P, Trichet V. Epinephrine Infiltration of Adipose Tissue Impacts MCF7 Breast Cancer Cells and Total Lipid Content. Int J Mol Sci 2019; 20:ijms20225626. [PMID: 31717935 PMCID: PMC6888424 DOI: 10.3390/ijms20225626] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2019] [Revised: 10/31/2019] [Accepted: 11/04/2019] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Considering the positive or negative potential effects of adipocytes, depending on their lipid composition, on breast tumor progression, it is important to evaluate whether adipose tissue (AT) harvesting procedures, including epinephrine infiltration, may influence breast cancer progression. METHODS Culture medium conditioned with epinephrine-infiltrated adipose tissue was tested on human Michigan Cancer Foundation-7 (MCF7) breast cancer cells, cultured in monolayer or in oncospheres. Lipid composition was evaluated depending on epinephrine-infiltration for five patients. Epinephrine-infiltrated adipose tissue (EI-AT) or corresponding conditioned medium (EI-CM) were injected into orthotopic breast carcinoma induced in athymic mouse. RESULTS EI-CM significantly increased the proliferation rate of MCF7 cells Moreover EI-CM induced an output of the quiescent state of MCF7 cells, but it could be either an activator or inhibitor of the epithelial mesenchymal transition as indicated by gene expression changes. EI-CM presented a significantly higher lipid total weight compared with the conditioned medium obtained from non-infiltrated-AT of paired-patients. In vivo, neither the EI-CM or EI-AT injection significantly promoted MCF7-induced tumor growth. CONCLUSIONS Even though conditioned media are widely used to mimic the secretome of cells or tissues, they may produce different effects on tumor progression, which may explain some of the discrepancy observed between in vitro, preclinical and clinical data using AT samples.
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Affiliation(s)
- Pierre Avril
- INSERM, Université de Nantes, UMR1238, Phy-Os, Sarcomes osseux et remodelage des tissus calcifiés, F-44035 Nantes, France; (P.A.); (L.V.); (L.-R.L.N.); (F.R.); (P.L.); (V.T.)
| | - Luciano Vidal
- INSERM, Université de Nantes, UMR1238, Phy-Os, Sarcomes osseux et remodelage des tissus calcifiés, F-44035 Nantes, France; (P.A.); (L.V.); (L.-R.L.N.); (F.R.); (P.L.); (V.T.)
| | - Sophie Barille-Nion
- CRCINA, INSERM, Université d’Angers, Université de Nantes, F-44035 Nantes, France;
| | - Louis-Romée Le Nail
- INSERM, Université de Nantes, UMR1238, Phy-Os, Sarcomes osseux et remodelage des tissus calcifiés, F-44035 Nantes, France; (P.A.); (L.V.); (L.-R.L.N.); (F.R.); (P.L.); (V.T.)
| | - Françoise Redini
- INSERM, Université de Nantes, UMR1238, Phy-Os, Sarcomes osseux et remodelage des tissus calcifiés, F-44035 Nantes, France; (P.A.); (L.V.); (L.-R.L.N.); (F.R.); (P.L.); (V.T.)
| | - Pierre Layrolle
- INSERM, Université de Nantes, UMR1238, Phy-Os, Sarcomes osseux et remodelage des tissus calcifiés, F-44035 Nantes, France; (P.A.); (L.V.); (L.-R.L.N.); (F.R.); (P.L.); (V.T.)
| | - Michelle Pinault
- INSERM Université de Tours, UMR1069, Nutrition, Croissance et Cancer, F-37032 Tours, France; (M.P.); (S.C.)
| | - Stéphane Chevalier
- INSERM Université de Tours, UMR1069, Nutrition, Croissance et Cancer, F-37032 Tours, France; (M.P.); (S.C.)
| | - Pierre Perrot
- INSERM, Université de Nantes, UMR1238, Phy-Os, Sarcomes osseux et remodelage des tissus calcifiés, F-44035 Nantes, France; (P.A.); (L.V.); (L.-R.L.N.); (F.R.); (P.L.); (V.T.)
- CHU de Nantes, Service de Chirurgie Plastique et des Brûlés, F-44035 Nantes, France
- Correspondence: ; Tel.: +33-2-40-08-73-02
| | - Valérie Trichet
- INSERM, Université de Nantes, UMR1238, Phy-Os, Sarcomes osseux et remodelage des tissus calcifiés, F-44035 Nantes, France; (P.A.); (L.V.); (L.-R.L.N.); (F.R.); (P.L.); (V.T.)
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Chas M, Goupille C, Arbion F, Bougnoux P, Pinault M, Jourdan ML, Chevalier S, Ouldamer L. Low eicosapentaenoic acid and gamma-linolenic acid levels in breast adipose tissue are associated with inflammatory breast cancer. Breast 2019; 45:113-117. [DOI: 10.1016/j.breast.2019.04.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Revised: 02/24/2019] [Accepted: 04/01/2019] [Indexed: 12/21/2022] Open
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ω-3 Long Chain Polyunsaturated Fatty Acids as Sensitizing Agents and Multidrug Resistance Revertants in Cancer Therapy. Int J Mol Sci 2017; 18:ijms18122770. [PMID: 29261109 PMCID: PMC5751368 DOI: 10.3390/ijms18122770] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Revised: 11/23/2017] [Accepted: 12/16/2017] [Indexed: 12/11/2022] Open
Abstract
Chemotherapy efficacy is strictly limited by the resistance of cancer cells. The ω-3 long chain polyunsaturated fatty acids (ω-3 LCPUFAs) are considered chemosensitizing agents and revertants of multidrug resistance by pleiotropic, but not still well elucidated, mechanisms. Nowadays, it is accepted that alteration in gene expression, modulation of cellular proliferation and differentiation, induction of apoptosis, generation of reactive oxygen species, and lipid peroxidation are involved in ω-3 LCPUFA chemosensitizing effects. A crucial mechanism in the control of cell drug uptake and efflux is related to ω-3 LCPUFA influence on membrane lipid composition. The incorporation of docosahexaenoic acid in the lipid rafts produces significant changes in their physical-chemical properties affecting content and functions of transmembrane proteins, such as growth factors, receptors and ATP-binding cassette transporters. Of note, ω-3 LCPUFAs often alter the lipid compositions more in chemoresistant cells than in chemosensitive cells, suggesting a potential adjuvant role in the treatment of drug resistant cancers.
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Dumas JF, Brisson L, Chevalier S, Mahéo K, Fromont G, Moussata D, Besson P, Roger S. Metabolic reprogramming in cancer cells, consequences on pH and tumour progression: Integrated therapeutic perspectives with dietary lipids as adjuvant to anticancer treatment. Semin Cancer Biol 2017; 43:90-110. [DOI: 10.1016/j.semcancer.2017.03.004] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Revised: 03/10/2017] [Accepted: 03/13/2017] [Indexed: 02/07/2023]
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12
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Zhao H, Pflug BR, Lai X, Wang M. Pyruvate dehydrogenase alpha 1 as a target of omega-3 polyunsaturated fatty acids in human prostate cancer through a global phosphoproteomic analysis. Proteomics 2016; 16:2419-31. [PMID: 27357730 DOI: 10.1002/pmic.201600166] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Revised: 05/23/2016] [Accepted: 06/27/2016] [Indexed: 01/26/2023]
Abstract
Prostate cancer is one of the leading cancers in men. Taking dietary supplements, such as fish oil (FO), which is rich in n-3 polyunsaturated fatty acids (PUFAs), has been employed as a strategy to lower prostate cancer risk and control disease progression. In this study, we investigated the global phosphoproteomic changes induced by FO using a combination of phosphoprotein-enrichment strategy and high-resolution tandem mass spectrometry. We found that FO induces many more phosphorylation changes than oleic acid when they both are compared to control group. Quantitative comparison between untreated group and FO- or oleic acid-treated groups uncovered a number of important protein phosphorylation changes induced by n-3PUFAs. This phosphoproteomic discovery study and the follow-up Western Blot validation study elucidate that phosphorylation levels of the two regulatory serine residues in pyruvate dehydrogenase alpha 1 (PDHA1), serine-232 and serine-300, are significantly decreased upon FO treatment. As expected, increased pyruvate dehydrogenase activity was also observed. This study suggests that FO-induced phosphorylation changes in PDHA1 is more likely related to the glucose metabolism pathway, and n-3 PUFAs may have a role in controlling the balance between lipid and glucose oxidation.
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Affiliation(s)
- Heng Zhao
- Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Beth R Pflug
- Department of Medicine, Division of Clinical Pharmacology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Xianyin Lai
- Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, IN, USA
- Department of Cellular & Integrative Physiology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Mu Wang
- Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, IN, USA.
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Long chain n-3 polyunsaturated fatty acids increase the efficacy of docetaxel in mammary cancer cells by downregulating Akt and PKCε/δ-induced ERK pathways. Biochim Biophys Acta Mol Cell Biol Lipids 2016; 1861:380-90. [DOI: 10.1016/j.bbalip.2016.01.012] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Revised: 01/15/2016] [Accepted: 01/22/2016] [Indexed: 12/21/2022]
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Baronzio G, Parmar G, Baronzio M. Overview of Methods for Overcoming Hindrance to Drug Delivery to Tumors, with Special Attention to Tumor Interstitial Fluid. Front Oncol 2015; 5:165. [PMID: 26258072 PMCID: PMC4512202 DOI: 10.3389/fonc.2015.00165] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2015] [Accepted: 07/06/2015] [Indexed: 12/24/2022] Open
Abstract
Every drug used to treat cancer (chemotherapeutics, immunological, monoclonal antibodies, nanoparticles, radionuclides) must reach the targeted cells through the tumor environment at adequate concentrations, in order to exert their cell-killing effects. For any of these agents to reach the goal cells, they must overcome a number of impediments created by the tumor microenvironment (TME), beginning with tumor interstitial fluid pressure (TIFP), and a multifactorial increase in composition of the extracellular matrix (ECM). A primary modifier of TME is hypoxia, which increases the production of growth factors, such as vascular endothelial growth factor and platelet-derived growth factor. These growth factors released by both tumor cells and bone marrow recruited myeloid cells form abnormal vasculature characterized by vessels that are tortuous and more permeable. Increased leakiness combined with increased inflammatory byproducts accumulates fluid within the tumor mass (tumor interstitial fluid), ultimately creating an increased pressure (TIFP). Fibroblasts are also up-regulated by the TME, and deposit fibers that further augment the density of the ECM, thus, further worsening the TIFP. Increased TIFP with the ECM are the major obstacles to adequate drug delivery. By decreasing TIFP and ECM density, we can expect an associated rise in drug concentration within the tumor itself. In this overview, we will describe all the methods (drugs, nutraceuticals, and physical methods of treatment) able to lower TIFP and to modify ECM used for increasing drug concentration within the tumor tissue.
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Affiliation(s)
| | - Gurdev Parmar
- Integrated Health Clinic , Fort Langley, BC , Canada
| | - Miriam Baronzio
- Integrative Oncology Section, Medical Center Kines , Milan , Italy
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Chao CY, Lii CK, Ye SY, Li CC, Lu CY, Lin AH, Liu KL, Chen HW. Docosahexaenoic acid inhibits vascular endothelial growth factor (VEGF)-induced cell migration via the GPR120/PP2A/ERK1/2/eNOS signaling pathway in human umbilical vein endothelial cells. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2014; 62:4152-8. [PMID: 24734983 DOI: 10.1021/jf5007165] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Cell migration plays an important role in angiogenesis and wound repair. Vascular endothelial growth factor (VEGF) is an endothelial cell-specific mitogen that is essential for endothelial cell survival, proliferation, and migration. Docosahexaenoic acid (DHA), an n-3 polyunsaturated fatty acid, shows both anti-inflammatory and antioxidant activities in vitro and in vivo. This study investigated the molecular mechanism by which DHA down-regulates VEGF-induced cell migration. HUVECs were used as the study model, and the MTT assay, Western blot, wound-healing assay, and phosphatase activity assay were used to explore the effects of DHA on cell migration. GPR120 is the putative receptor for DHA action. The results showed that DHA, PD98059 (an ERK1/2 inhibitor), and GW9508 (a GPR120 agonist) inhibited VEGF-induced cell migration. In contrast, pretreatment with okadaic acid (OA, a PP2A inhibitor) and S-nitroso-N-acetyl-DL-penicillamine (an NO donor) reversed the inhibition of cell migration by DHA. VEGF-induced cell migration was accompanied by phosphorylation of ERK1/2 and eNOS. Treatment of HUVECs with DHA increased PP2A enzyme activity and decreased VEGF-induced phosphorylation of ERK1/2 and eNOS. However, pretreatment with OA significantly decreased DHA-induced PP2A enzyme activity and reversed the DHA inhibition of VEGF-induced ERK1/2 and eNOS phosphorylation. These results suggest that stimulation of PP2A activity and inhibition of the VEGF-induced ERK1/2/eNOS signaling pathway may be involved in the DHA suppression of VEGF-induced cell migration. Thus, the effect of DHA on angiogenesis and wound repair is at least partly by virtue of its attenuation of cell migration.
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Affiliation(s)
- Che-Yi Chao
- Department of Health and Nutrition Biotechnology, Asia University , Taichung, Taiwan
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Yang L, Moss T, Mangala LS, Marini J, Zhao H, Wahlig S, Armaiz-Pena G, Jiang D, Achreja A, Win J, Roopaimoole R, Rodriguez-Aguayo C, Mercado-Uribe I, Lopez-Berestein G, Liu J, Tsukamoto T, Sood AK, Ram PT, Nagrath D. Metabolic shifts toward glutamine regulate tumor growth, invasion and bioenergetics in ovarian cancer. Mol Syst Biol 2014; 10:728. [PMID: 24799285 PMCID: PMC4188042 DOI: 10.1002/msb.20134892] [Citation(s) in RCA: 241] [Impact Index Per Article: 24.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Glutamine can play a critical role in cellular growth in multiple cancers. Glutamine‐addicted cancer cells are dependent on glutamine for viability, and their metabolism is reprogrammed for glutamine utilization through the tricarboxylic acid (TCA) cycle. Here, we have uncovered a missing link between cancer invasiveness and glutamine dependence. Using isotope tracer and bioenergetic analysis, we found that low‐invasive ovarian cancer (OVCA) cells are glutamine independent, whereas high‐invasive OVCA cells are markedly glutamine dependent. Consistent with our findings, OVCA patients’ microarray data suggest that glutaminolysis correlates with poor survival. Notably, the ratio of gene expression associated with glutamine anabolism versus catabolism has emerged as a novel biomarker for patient prognosis. Significantly, we found that glutamine regulates the activation of STAT3, a mediator of signaling pathways which regulates cancer hallmarks in invasive OVCA cells. Our findings suggest that a combined approach of targeting high‐invasive OVCA cells by blocking glutamine's entry into the TCA cycle, along with targeting low‐invasive OVCA cells by inhibiting glutamine synthesis and STAT3 may lead to potential therapeutic approaches for treating OVCAs.
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Affiliation(s)
- Lifeng Yang
- Laboratory for Systems Biology of Human Diseases, Rice University, Houston, TX, USA
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17
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Wannous R, Bon E, Mahéo K, Goupille C, Chamouton J, Bougnoux P, Roger S, Besson P, Chevalier S. PPARβ mRNA expression, reduced by n-3 PUFA diet in mammary tumor, controls breast cancer cell growth. Biochim Biophys Acta Mol Cell Biol Lipids 2013; 1831:1618-25. [PMID: 23906790 DOI: 10.1016/j.bbalip.2013.07.010] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2013] [Revised: 07/15/2013] [Accepted: 07/17/2013] [Indexed: 12/20/2022]
Abstract
The effect of numerous anticancer drugs on breast cancer cell lines and rodent mammary tumors can be enhanced by a treatment with long-chain n-3 polyunsaturated fatty acids (n-3 PUFA) such as docosahexaenoic acid (DHA, 22:6n-3) which is a natural ligand of peroxisome proliferator-activated receptors (PPAR). In order to identify the PPAR regulating breast cancer cell growth, we tested the impact of siRNA, selected to suppress PPARα, PPARβ or PPARγ mRNA in MDA-MB-231 and MCF-7 breast cancer cell lines. The siPPARβ was the most effective to inhibit breast cancer cell growth in both cell lines. Using PPARα, PPARβ and PPARγ pharmacological antagonists, we showed that PPARβ regulated DHA-induced inhibition of growth in MDA-MB-231 and MCF-7 cells. In addition, the expressions of all 3 PPAR mRNA were co-regulated in both cell lines, upon treatments with siRNA or PPAR antagonists. PPAR mRNA expression was also examined in the NitrosoMethylUrea (NMU)-induced rat mammary tumor model. The expressions of PPARα and PPARβ mRNAs were correlated in the control group but not in the n-3 PUFA group in which the expression of PPARβ mRNA was reduced. Although PPARα expression was also increased in the n-3 PUFA-enriched diet group under docetaxel treatment, it is only the expression of PPARβ mRNA that correlated with the regression of mammary tumors: those that most regressed displayed the lowest PPARβ mRNA expression. Altogether, these data identify PPARβ as an important player capable of modulating other PPAR mRNA expressions, under DHA diet, for inhibiting breast cancer cell growth and mammary tumor growth.
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Affiliation(s)
- Ramez Wannous
- Inserm UMR1069 "Nutrition, Croissance et Cancer", Faculté de Médecine, Université François Rabelais de Tours, France
| | - Emeline Bon
- Inserm UMR1069 "Nutrition, Croissance et Cancer", Faculté de Médecine, Université François Rabelais de Tours, France
| | - Karine Mahéo
- Inserm UMR1069 "Nutrition, Croissance et Cancer", Faculté de Médecine, Université François Rabelais de Tours, France
| | - Caroline Goupille
- Inserm UMR1069 "Nutrition, Croissance et Cancer", Faculté de Médecine, Université François Rabelais de Tours, France; Hôpital Bretonneau, CHU de Tours, France
| | - Julie Chamouton
- Inserm UMR1069 "Nutrition, Croissance et Cancer", Faculté de Médecine, Université François Rabelais de Tours, France
| | - Philippe Bougnoux
- Inserm UMR1069 "Nutrition, Croissance et Cancer", Faculté de Médecine, Université François Rabelais de Tours, France; Hôpital Bretonneau, CHU de Tours, France
| | - Sébastien Roger
- Inserm UMR1069 "Nutrition, Croissance et Cancer", Faculté de Médecine, Université François Rabelais de Tours, France
| | - Pierre Besson
- Inserm UMR1069 "Nutrition, Croissance et Cancer", Faculté de Médecine, Université François Rabelais de Tours, France
| | - Stephan Chevalier
- Inserm UMR1069 "Nutrition, Croissance et Cancer", Faculté de Médecine, Université François Rabelais de Tours, France; Département de Biochimie, Faculté de Sciences Pharmaceutiques, Université François Rabelais de Tours, France.
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Turgeon J, Dussault S, Maingrette F, Groleau J, Haddad P, Perez G, Rivard A. Fish oil-enriched diet protects against ischemia by improving angiogenesis, endothelial progenitor cell function and postnatal neovascularization. Atherosclerosis 2013; 229:295-303. [PMID: 23880179 DOI: 10.1016/j.atherosclerosis.2013.05.020] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2012] [Revised: 05/18/2013] [Accepted: 05/20/2013] [Indexed: 11/19/2022]
Abstract
BACKGROUND Fish oil consumption has been associated with a reduced incidence of cardiovascular diseases. However, the precise mechanisms involved are not completely understood. Here we tested the hypothesis that a fish oil-enriched diet improves neovascularization in response to ischemia. METHODS AND RESULTS C57Bl/6 mice were fed a diet containing either 20% fish oil, rich in long-chain n-3 polyunsaturated fatty acids (PUFAs), or 20% corn oil, rich in n-6 PUFAs. After 4 weeks, hindlimb ischemia was surgically induced by femoral artery removal. We found that blood flow recovery was significantly improved in mice fed a fish oil diet compared to those fed a corn oil diet (Doppler flow ratio (DFR) at day 21 after surgery 78 ± 5 vs. 56 ± 4; p < 0.01). Clinically, this was associated with a significant reduction of ambulatory impairment and ischemic damage in the fish oil group. At the microvascular level, capillary density was significantly improved in ischemic muscles of mice fed a fish oil diet. This correlated with increased expression of VEGF and eNOS in ischemic muscles, and higher NO concentration in the plasma. Endothelial progenitor cells (EPCs) have been shown to have an important role for postnatal neovascularization. We found that the number of EPCs was significantly increased in mice fed a fish oil diet. In addition, oxidative stress levels (DCF-DA, DHE) were reduced in EPCs isolated from mice exposed to fish oil, and this was associated with improved EPC functional activities (migration and integration into tubules). In vitro, treatment of EPCs with fish oil resulted in a significant increase of cellular migration. In addition, the secretion of angiogenic growth factors including IL6 and leptin was significantly increased in EPCs exposed to fish oil. CONCLUSION Fish oil-enriched diet is associated with improved neovascularization in response to ischemia. Potential mechanisms involved include activation of VEGF/NO pathway in ischemic tissues together with an increase in the number and the functional activities of EPCs.
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Affiliation(s)
- Julie Turgeon
- Department of Cardiovascular Research, Centre Hospitalier de l'Université de Montréal, 1560 Sherbrooke Est, Montréal, Québec H2L 4M1, Canada
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