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Moghadam SG, Ebrahimpour M, Alavizadeh SH, Kesharwani P, Sahebkar A. The association between oxidized low-density lipoprotein and cancer: An emerging targeted therapeutic approach? Bioorg Med Chem Lett 2024; 106:129762. [PMID: 38649117 DOI: 10.1016/j.bmcl.2024.129762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 04/06/2024] [Accepted: 04/19/2024] [Indexed: 04/25/2024]
Abstract
Lipids play an important role in varying vital cellular processes including cell growth and division. Elevated levels of low-density lipoprotein (LDL) and oxidized-LDL (ox-LDL), and overexpression of the corresponding receptors including LDL receptor (LDLR), lectin-like oxidized low-density lipoprotein receptor-1 (LOX-1), and cluster of differentiation 36 (CD36), have shown strong correlations with different facets of carcinogenesis including proliferation, invasion, and angiogenesis. Furthermore, a high serum level of LOX-1 is considered as a poor prognostic factor in many types of cancer including colorectal cancer. Ox-LDL could contribute to cancer progression and metastasis through endothelial-to-mesenchymal transition (EMT) and autophagy. Thus, many studies have shed light on the significant role of ox-LDL as a potential therapeutic target for cancer therapy. In various repurposing approaches, anti-dyslipidemia agents, phytochemicals, autophagy modulators as well as recently developed ldl-like nanoparticles have been investigated as potential tumor therapeutic agents by targeting oxidized-LDL/LOX-1 pathways. Herein, we reviewed the role of oxidized-LDL and LOX-1 in cancer progression, invasion, metastasis, and also cancer-associated angiogenesis. Moreover, we addressed therapeutic utility of several compounds that proved to be capable of targeting the metabolic moieties in cancer. This review provides insights on the potential impact of targeting LDL and ox-LDL in cancer therapy and their future biomedical implementations.
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Affiliation(s)
- Samin Ghorbani Moghadam
- Nanotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mehrshad Ebrahimpour
- Nanotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Seyedeh Hoda Alavizadeh
- Nanotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Pharmaceutical Nanotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Prashant Kesharwani
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi 110062, India
| | - Amirhossein Sahebkar
- Center for Global Health Research, Saveetha Medical College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, India; Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
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2
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Hasani M, Alinia SP, Khazdouz M, Sobhani S, Mardi P, Ejtahed HS, Qorbani M. Oxidative balance score and risk of cancer: a systematic review and meta-analysis of observational studies. BMC Cancer 2023; 23:1143. [PMID: 38001409 PMCID: PMC10675899 DOI: 10.1186/s12885-023-11657-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Accepted: 11/20/2023] [Indexed: 11/26/2023] Open
Abstract
BACKGROUND The oxidative balance score (OBS) has been utilized to assess the overall pro- and antioxidant exposure status in various chronic diseases. The current meta-analysis was carried out to pool the association between OBS and the risk of cancer. METHODS We systematically searched the Web of Science, PubMed, Scopus, Embase, and Google Scholar up to August 2023. All observational studies which evaluated the association of OBS with the risk of cancers were included. There was no time of publication or language restrictions. Heterogeneity between studies was assessed using the Chi-square-based Q-test and the I2. A random-effects model meta-analysis was conducted to estimate the pooled effect sizes. Possible sources of heterogeneity were explored by subgroup and meta-regression analysis. RESULTS Totally, 15 studies (9 case-control and 6 cohorts) were eligible for meta-analysis. Random effect model meta-analysis of case-control studies showed that higher OBS significantly decreases the odds of cancers (pooled OR: 0.64, 95% CI: 0.54, 0.74). In the cohort studies, the association of OBS with the risk of cancers was not significant (pooled HR: 0.97, 95% CI: 0.80,1.18). The subgroup analysis showed that cancer type and gender were the potential sources of heterogeneity. CONCLUSION Our results show an inverse and significant association between higher OBS and odds of colorectal cancers in case-control and cohort studies. In the case of prostate cancer in cohort studies, our results did not align with the hypothesis. Considering the importance of diet and antioxidant balance in the conditions of malignancy, it is suggested to conduct more comprehensive studies with standard measurement methods to obtain conclusive results.
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Affiliation(s)
- Motahareh Hasani
- Department of Nutrition, School of Public Health, Golestan University of Medical Sciences, Gorgan, Iran
| | | | - Maryam Khazdouz
- Growth and Development Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Sahar Sobhani
- Non-Communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Iran
| | - Parham Mardi
- Non-Communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Iran
| | - Hanieh-Sadat Ejtahed
- Obesity and Eating Habits Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.
| | - Mostafa Qorbani
- Non-Communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Iran.
- Chronic Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.
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3
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Bitorina AV, Oligschlaeger Y, Shiri-Sverdlov R, Theys J. Low profile high value target: The role of OxLDL in cancer. Biochim Biophys Acta Mol Cell Biol Lipids 2019; 1864:158518. [PMID: 31479734 DOI: 10.1016/j.bbalip.2019.158518] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 08/19/2019] [Accepted: 08/26/2019] [Indexed: 12/19/2022]
Abstract
Unhealthy Western-type diet and physical inactivity are highly associated with the current obesity epidemic and its related metabolic diseases such as atherosclerosis and non-alcoholic steatohepatitis. In addition, increasing evidence indicates that obesity is also a major risk factor for several types of common cancers. Recent studies have provided correlative support that disturbed lipid metabolism plays a role in cancer risk and development, pointing towards parallels in metabolic derangements between metabolic diseases and cancer. An important feature of disturbed lipid metabolism is the increase in circulating low-density lipoproteins, which can be oxidized (oxLDL). Elevated oxLDL and the level of its receptors have been positively associated with increased risk of various types of cancer. This review discusses the pro-oncogenic role of oxLDL in tumor development, progression and potential therapies, and provides insights into the underlying mechanisms.
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Affiliation(s)
- Albert V Bitorina
- Department of Molecular Genetics, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University, Maastricht, the Netherlands
| | - Yvonne Oligschlaeger
- Department of Molecular Genetics, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University, Maastricht, the Netherlands
| | - Ronit Shiri-Sverdlov
- Department of Molecular Genetics, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University, Maastricht, the Netherlands.
| | - Jan Theys
- Department of Precision Medicine, School for Oncology & Developmental Biology (GROW), Maastricht University Medical Centre, Maastricht, the Netherlands.
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4
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Siti Z, Seoparjoo A, Shahrul H. Lipoproteins modulate growth and P-glycoprotein expression in drug-resistant HER2-overexpressed breast cancer cells. Heliyon 2019; 5:e01573. [PMID: 31183434 PMCID: PMC6488741 DOI: 10.1016/j.heliyon.2019.e01573] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Revised: 02/25/2019] [Accepted: 04/23/2019] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Drug resistance remains as a challenge in the treatment of HER2-overexpressed breast cancer. Emerging evidence from clinical studies show relation of oxidized low density lipoprotein (LDL) and very low density lipoprotein (VLDL) level with drug resistance. However, the underlying molecular mechanisms for this effect remain unclear. Therefore, the aim of this study was to determine the effects of oxidized-LDL and VLDL in drug-resistant HER2-overexpressed breast cancer cells. METHODS An in vitro cell model for tamoxifen-resistant HER2 overexpressed UACC732 cells was created using the pulse method. Cells were exposed to oxidized LDL (oxLDL) and very low density lipoprotein (VLDL) separately. Effects on cell morphology was studied using phase contrast microscopic changes. Percentage of cell viability was measured using proliferation assay kit. Development of tamoxifen resistance was determined based on P-gp expression with flow cytometry. Further analysis includedcell death measurement with flow cytometry method. RESULTS UACC732 cells exposed to VLDL exhibited fibroblast-like morphology. This was further supported by proliferation assay, where the percentage of cell viability achieved more than 100% with 100 μg/ml of VLDL exposure, indicating cell proliferation. Findings also showed that VLDL caused reduction in expression of Pgp in resistant cells compared to resistant cells alone (p = 0.02). CONCLUSION Results of this study suggest that VLDL may play a role in growth of drug-resistant HER2-overexpressing cells. Lower expression of P-gp in presence of VLDL need to be investigated further.
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Affiliation(s)
- Z.S. Siti
- Oncological and Radiological Sciences Cluster, Advanced Medical and Dental Institute, Universiti Sains Malaysia, 13200 Kepala Batas, Pulau Pinang, Malaysia
| | - A.M.I. Seoparjoo
- School of Medical Sciences, 16150 Kubang Kerian, Kelantan, Malaysia
| | - H. Shahrul
- Oncological and Radiological Sciences Cluster, Advanced Medical and Dental Institute, Universiti Sains Malaysia, 13200 Kepala Batas, Pulau Pinang, Malaysia
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5
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Balzan S, Lubrano V. LOX-1 receptor: A potential link in atherosclerosis and cancer. Life Sci 2018; 198:79-86. [PMID: 29462603 DOI: 10.1016/j.lfs.2018.02.024] [Citation(s) in RCA: 88] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Revised: 02/07/2018] [Accepted: 02/16/2018] [Indexed: 12/19/2022]
Abstract
Altered production of reactive oxygen species (ROS), causing lipid peroxidation and DNA damage, contributes to the progression of atherosclerosis and cancer. Lectin-like oxidized low-density lipoprotein receptor-1 (LOX-1) is a lectin-like receptor for oxidized low-density lipoproteins (ox-LDL) primarily expressed in endothelial cells and vasculature-rich organs. LOX-1 receptors is a marker for atherosclerosis, and once activated by ox-LDL or other ligands, stimulates the expression of adhesion molecules, pro-inflammatory signaling pathways and proangiogenic proteins, including NF-kB and VEGF, in vascular endothelial cells and macrophages. Several different types of cancer reported LOX-1 gene upregulation, and numerous interplays exist concerning LOX-1 in atherosclerosis, metabolic diseases and cancer. One of them involves NF-kB, an oncogenic protein that regulates the transcription of several inflammatory genes response. In a model of cellular transformation, the MCF10A ER-Src, inhibition of LOX-1 gene reduces NF-kB activation and the inflammatory and hypoxia pathways, suggesting a mechanistic connection between cellular transformation and atherosclerosis. The remodeling proteins MMP-2 and MMP-9 have been found increased in angiogenesis in atherosclerotic plaque and also in human prostate cancer cells. In this review, we outlined the role of LOX-1 in atherogenesis and tumorigenesis as a potential link in these diseases, suggesting that LOX-1 inhibition could represent a promising strategy in the treatment of atherosclerosis and tumors.
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Affiliation(s)
- Silvana Balzan
- Institute of Clinical Physiology, CNR, Via Moruzzi 1, Pisa 56124, Italy.
| | - Valter Lubrano
- Fondazione CNR/Regione Toscana G. Monasterio, Via Moruzzi 1, Pisa 56124, Italy
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6
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Murdocca M, Mango R, Pucci S, Biocca S, Testa B, Capuano R, Paolesse R, Sanchez M, Orlandi A, di Natale C, Novelli G, Sangiuolo F. The lectin-like oxidized LDL receptor-1: a new potential molecular target in colorectal cancer. Oncotarget 2018; 7:14765-80. [PMID: 26895376 PMCID: PMC4924750 DOI: 10.18632/oncotarget.7430] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Accepted: 01/29/2016] [Indexed: 01/01/2023] Open
Abstract
The identification of new biomarkers and targets for tailored therapy in human colorectal cancer (CRC) onset and progression is an interesting challenge. CRC tissue produces an excess of ox-LDL, suggesting a close correlation between lipid dysfunction and malignant transformation. Lectin-like oxidized LDL receptor-1 (LOX-1) is involved in several mechanisms closely linked to tumorigenesis. Here we report a tumor specific LOX-1 overexpression in human colon cancers: LOX-1 results strongly increased in the 72% of carcinomas (P<0.001), and strongly overexpressed in 90% of highly aggressive and metastatic tumours (P<0.001), as compared to normal mucosa. Moreover LOX-1 results modulated since the early stage of the disease (adenomas vs normal mucosa; P<0.001) suggesting an involvement in tumor insurgence and progression. The in vitro knockdown of LOX-1 in DLD-1 and HCT-8 colon cancer cells by siRNA and anti-LOX-1 antibody triggers to an impaired proliferation rate and affects the maintenance of cell growth and tumorigenicity. The wound-healing assay reveals an evident impairment in closing the scratch. Lastly knockdown of LOX-1 delineates a specific pattern of volatile compounds characterized by the presence of a butyrate derivative, suggesting a potential role of LOX-1 in tumor-specific epigenetic regulation in neoplastic cells. The role of LOX-1 as a novel biomarker and molecular target represents a concrete opportunity to improve current therapeutic strategies for CRC. In addition, the innovative application of a technology focused to the identification of LOX-1 driven volatiles specific to colorectal cancer provides a promising diagnostic tool for CRC screening and for monitoring the response to therapy.
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Affiliation(s)
- Michela Murdocca
- Department of Biomedicine and Prevention, Tor Vergata University, Rome, Italy
| | - Ruggiero Mango
- Department of Emergency and Critical Care, Section of Cardiology, Policlinic of Tor Vergata, Rome, Italy
| | - Sabina Pucci
- Department of Biomedicine and Prevention, Tor Vergata University, Rome, Italy
| | - Silvia Biocca
- Department of Systems Medicine, Tor Vergata University, Rome, Italy
| | - Barbara Testa
- Department of Biomedicine and Prevention, Tor Vergata University, Rome, Italy
| | - Rosamaria Capuano
- Department of Electronic Engineering, Tor Vergata University, Rome, Italy
| | - Roberto Paolesse
- Department of Chemical Science and Technology, Tor Vergata University, Rome, Italy
| | - Massimo Sanchez
- Department of Cell Biology and Neurosciences, Istituto Superiore di Sanità, Rome, Italy
| | - Augusto Orlandi
- Department of Biomedicine and Prevention, Tor Vergata University, Rome, Italy
| | - Corrado di Natale
- Department of Electronic Engineering, Tor Vergata University, Rome, Italy
| | - Giuseppe Novelli
- Department of Biomedicine and Prevention, Tor Vergata University, Rome, Italy
| | - Federica Sangiuolo
- Department of Biomedicine and Prevention, Tor Vergata University, Rome, Italy
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7
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Duggan C, Tapsoba JDD, Wang CY, Campbell KL, Foster-Schubert K, Gross MD, McTiernan A. Dietary Weight Loss, Exercise, and Oxidative Stress in Postmenopausal Women: A Randomized Controlled Trial. Cancer Prev Res (Phila) 2017; 9:835-843. [PMID: 27803047 DOI: 10.1158/1940-6207.capr-16-0163] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Accepted: 08/02/2016] [Indexed: 02/04/2023]
Abstract
Oxidative stress, a potential mechanism linking obesity and cancer, results from an imbalance between activation/inactivation of reactive oxygen species, byproducts of cellular metabolism. In a randomized controlled trial, we investigated effects of diet and/or exercise on biomarkers of oxidative stress. A total of 439 overweight/obese [body mass index (BMI) > 25 kg/m2] postmenopausal women, ages 50 of 75 years, were randomized to 12 months of (i) reduced-calorie weight loss diet ("diet"; n = 118); (ii) moderate-to-vigorous intensity aerobic exercise ("exercise"; n = 117); (iii) combined diet and exercise intervention ("diet + exercise"; n = 117); or (iv) control (n = 87). Outcomes were circulating markers of oxidative stress, including fluorescent oxidation products (FOP), F2-isoprostanes, and oxidized low-density lipoprotein (LDL). On average, participants were 57.9 years, with a BMI of 30.9 kg/m2 F2-isprostanes were significantly reduced in the diet (-22.7%, P = 0.0002) and diet + exercise (-23.5%, P < 0.0001) arms versus controls (-2.99%) and nonsignificantly reduced in the exercise arm (-14.5%, P = 0.01). Participants randomized to the diet and diet + exercise arms had significant increases in levels of FOP [control -5.81%; diet +14.77% (P = 0.0001); diet + exercise +17.45%, (P = 0.0001)]. In secondary analyses, increasing weight loss was statistically significantly associated with linear trends of greater reductions in oxidized LDL and in F2-isoprostanes and increases in FOP. Compared with controls, exercise participants whose maximal oxygen consumption increased had significant decreases in levels of F2-isoprostanes and in oxidized LDL and increases in FOP. Dietary weight loss, with or without exercise, significantly reduced some markers of oxidative stress in postmenopausal women. Cancer Prev Res; 9(11); 835-43. ©2016 AACR.
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Affiliation(s)
- Catherine Duggan
- Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington.
| | - Jean de Dieu Tapsoba
- Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Ching-Yun Wang
- Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington.,School of Public Health, University of Washington, Seattle, Washington
| | - Kristin L Campbell
- Faculty of Medicine, University of British Columbia, Vancouver, British Columbia
| | | | | | - Anne McTiernan
- Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington.,School of Public Health, University of Washington, Seattle, Washington
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8
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González-Chavarría I, Fernandez E, Gutierrez N, González-Horta EE, Sandoval F, Cifuentes P, Castillo C, Cerro R, Sanchez O, Toledo JR. LOX-1 activation by oxLDL triggers an epithelial mesenchymal transition and promotes tumorigenic potential in prostate cancer cells. Cancer Lett 2017; 414:34-43. [PMID: 29107109 DOI: 10.1016/j.canlet.2017.10.035] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2017] [Revised: 10/20/2017] [Accepted: 10/23/2017] [Indexed: 02/02/2023]
Abstract
Obesity is related to an increased risk of developing prostate cancer with high malignancy stages or metastasis. Recent results demonstrated that LOX-1, a receptor associated with obesity and atherosclerosis, is overexpressed in advanced and metastatic prostate cancer. Furthermore, high levels of oxLDL, the main ligand for LOX-1, have been found in patients with advanced prostate cancer. However, the role of LOX-1 in prostate cancer has not been unraveled completely yet. Here, we show that LOX-1 is overexpressed in prostate cancer cells and its activation by oxLDL promotes an epithelial to mesenchymal transition, through of lowered expression of epithelial markers (E-cadherin and plakoglobin) and an increased expression of mesenchymal markers (vimentin, N-cadherin, snail, slug, MMP-2 and MMP-9). Consequently, LOX-1 activation by oxLDL promotes actin cytoskeleton restructuration and MMP-2 and MMP-9 activity inducing prostate cancer cell invasion and migration. Additionally, LOX-1 increased the tumorigenic potential of prostate cancer cells and its expression was necessary for tumor growth in nude mice. In conclusion, our results suggest that oxLDL/LOX-1 could be ones of mechanisms that explain why obese patients with prostate cancer have an accelerated tumor progression and a greater probability of developing metastasis.
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Affiliation(s)
- I González-Chavarría
- Biotechnology and Biopharmaceuticals Laboratory, Department of Pathophysiology, School of Biological Science, Universidad de Concepión, Concepción, Chile
| | - E Fernandez
- Biotechnology and Biopharmaceuticals Laboratory, Department of Pathophysiology, School of Biological Science, Universidad de Concepión, Concepción, Chile
| | - N Gutierrez
- Biotechnology and Biopharmaceuticals Laboratory, Department of Pathophysiology, School of Biological Science, Universidad de Concepión, Concepción, Chile
| | - E E González-Horta
- Biotechnology and Biopharmaceuticals Laboratory, Department of Pathophysiology, School of Biological Science, Universidad de Concepión, Concepción, Chile
| | - F Sandoval
- Biotechnology and Biopharmaceuticals Laboratory, Department of Pathophysiology, School of Biological Science, Universidad de Concepión, Concepción, Chile
| | - P Cifuentes
- Biotechnology and Biopharmaceuticals Laboratory, Department of Pathophysiology, School of Biological Science, Universidad de Concepión, Concepción, Chile
| | - C Castillo
- Biotechnology and Biopharmaceuticals Laboratory, Department of Pathophysiology, School of Biological Science, Universidad de Concepión, Concepción, Chile
| | - R Cerro
- Biotechnology and Biopharmaceuticals Laboratory, Department of Pathophysiology, School of Biological Science, Universidad de Concepión, Concepción, Chile
| | - O Sanchez
- Department of Pharmacology, School of Biological Sciences, Universidad de Concepción, Concepción, Chile
| | - Jorge R Toledo
- Biotechnology and Biopharmaceuticals Laboratory, Department of Pathophysiology, School of Biological Science, Universidad de Concepión, Concepción, Chile.
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9
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Winklhofer-Roob BM, Faustmann G, Roob JM. Low-density lipoprotein oxidation biomarkers in human health and disease and effects of bioactive compounds. Free Radic Biol Med 2017; 111:38-86. [PMID: 28456641 DOI: 10.1016/j.freeradbiomed.2017.04.345] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Revised: 04/16/2017] [Accepted: 04/18/2017] [Indexed: 12/14/2022]
Abstract
Based on the significance of oxidized low-density lipoprotein (LDL) in health and disease, this review focuses on human studies addressing oxidation of LDL, including three lines of biomarkers, (i) ex vivo LDL resistance to oxidation, a "challenge test" model, (ii) circulating oxidized LDL, indicating the "current in vivo status", and (iii) autoantibodies against oxidized LDL as fingerprints of an immune response to oxidized LDL, along with circulating oxysterols and 4-hydroxynonenal as biomarkers of lipid peroxidation. Lipid peroxidation and oxidized LDL are hallmarks in the development of various metabolic, cardiovascular and other diseases. Changes further occur across life stages from infancy to older age as well as in athletes and smokers. Given their responsiveness to targeted nutritional interventions, markers of LDL oxidation have been employed in a rapidly growing number of human studies for more than 2 decades. There is growing interest in foods, which, besides providing energy and nutrients, exert beneficial effects on human health, such as protection of DNA, proteins and lipids from oxidative damage. Any health claim, however, needs to be substantiated by supportive evidence derived from human studies, using reliable biomarkers to demonstrate such beneficial effects. A large body of evidence has accumulated, demonstrating protection of LDL from oxidation by bioactive food compounds, including vitamins, other micronutrients and secondary plant ingredients, which will facilitate the selection of oxidation biomarkers for future human intervention studies and health claim support.
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Affiliation(s)
- Brigitte M Winklhofer-Roob
- Human Nutrition & Metabolism Research and Training Center, Institute of Molecular Biosciences, Karl-Franzens University of Graz, Austria.
| | - Gernot Faustmann
- Human Nutrition & Metabolism Research and Training Center, Institute of Molecular Biosciences, Karl-Franzens University of Graz, Austria; Clinical Division of Nephrology, Department of Internal Medicine, Medical University of Graz, Austria
| | - Johannes M Roob
- Clinical Division of Nephrology, Department of Internal Medicine, Medical University of Graz, Austria
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10
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Vignini A, Sabbatinelli J, Clemente N, Delli Carpini G, Tassetti M, Zagaglia G, Ciavattini A. Preperitoneal Fat Thicknesses, Lipid Profile, and Oxidative Status in Women With Uterine Fibroids. Reprod Sci 2017; 24:1419-1425. [PMID: 28122481 DOI: 10.1177/1933719116689598] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
PURPOSE There is growing evidence supporting a possible role for metabolic syndrome and its determinants, such as dyslipidemia, in uterine fibroid (UF) pathogenesis. The present study aims to investigate the association between UFs and visceral and subcutaneous fat thickness (SFT), lipid profile, and oxidative and antioxidative status. METHODS In this cross-sectional study, 35 patients diagnosed with UFs and 15 women without UFs were enrolled. Clinical history and anthropometric parameters were collected for every woman. Characteristics of UFs, preperitoneal fat thickness (PFT), and SFT were assessed ultrasonically. Lipid profile, glucose, thiobarbituric acid reactive substances (TBARs), and superoxide dismutase (SOD) activity were evaluated on plasma from participants. RESULTS Women with UFs showed a significantly increased PFT (11.63 ± 3.39 vs 7.01 ± 3.10 mm; P < .001), lower levels of high-density lipoprotein cholesterol (HDL-C; 45.4 ± 8.3 vs 57.2 ± 13.4 mg/dL; P = .017), higher levels of low-density lipoprotein cholesterol (LDL-C; 92.3 ± 21.5 vs 72.0 ± 14.6 mg/dL; P = .007), and oxidized LDL (65.2 ± 20.7 vs 43.0 ± 11.3 U/L; P = .002). In patients, TBARs concentration was significantly higher (9.41 ± 6.49 vs 2.92 ± 1.65 nmol malondialdehyde/100 μg prot; P < .001), whereas SOD activity was lower (1.09 ± 0.19 vs 1.37 ± 0.41 U/μL; P = .005). Preperitoneal fat thickness was positively associated with body mass index, oxidized LDL, and TBARs. At multivariate analysis, PFT and HDL-C maintained a significant correlation with the diagnosis of UFs. CONCLUSION Chronic inflammation triggered and sustained by visceral fat could play a determinant role in cell differentiation and proliferation processes, necessary for the development of UFs. Alterations in cholesterol fractions may be explained as a consequence of the increased visceral fat deposits and can reflect an increased risk of subclinical atherosclerosis in patients with UF.
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Affiliation(s)
- Arianna Vignini
- 1 Department of Clinical Sciences, Section of Biochemistry, Biology and Physics, Università Politecnica delle Marche, Ancona, Italy
| | - Jacopo Sabbatinelli
- 1 Department of Clinical Sciences, Section of Biochemistry, Biology and Physics, Università Politecnica delle Marche, Ancona, Italy
| | - Nicolò Clemente
- 2 Woman's Health Sciences Department, Gynecologic Section, Università Politecnica delle Marche, Ancona, Italy
| | - Giovanni Delli Carpini
- 2 Woman's Health Sciences Department, Gynecologic Section, Università Politecnica delle Marche, Ancona, Italy
| | - Marta Tassetti
- 2 Woman's Health Sciences Department, Gynecologic Section, Università Politecnica delle Marche, Ancona, Italy
| | - Giulia Zagaglia
- 2 Woman's Health Sciences Department, Gynecologic Section, Università Politecnica delle Marche, Ancona, Italy
| | - Andrea Ciavattini
- 2 Woman's Health Sciences Department, Gynecologic Section, Università Politecnica delle Marche, Ancona, Italy
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11
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Inflammation and oxidation: do they improve after kidney transplantation? Relationship with mortality after transplantation. Int Urol Nephrol 2016; 49:533-540. [PMID: 28013471 DOI: 10.1007/s11255-016-1435-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2016] [Accepted: 10/03/2016] [Indexed: 10/20/2022]
Abstract
Patients with chronic kidney disease (CKD) are characterized by a state of inflammation and oxidative stress that seems to improve after kidney transplantation (KT). Nevertheless, there is controversy regarding what is the best marker that better define inflammation and specially oxidative stress. OBJECTIVE To evaluate the biomarkers which are associated with improvements in inflammation and lipid peroxidation in patients who have undergone KT. To evaluate the relationship between inflammation, lipid peroxidation and mortality in KT. PATIENTS 196 KT (between 2003 and 2008). 67.9% men; median age: 51.9 years. Inflammation markers analyzed previous KT and 3 months after KT: c-reactive protein(CRP), interleukin 6(IL-6), tumor necrosis factor alpha(TNFα), soluble tumor necrosis factor receptor alpha(sTNFRα), soluble interleukin-2 receptor (sIL-2R). Lipid peroxidation markers analyzed: oxidized low-density lipoprotein (oxLDL) and anti-oxLDL antibodies. Calculation of glomerular filtration rate after KT: MDRD equation. RESULTS Following KT, there is a significant decrease in CRP (p = 0.006), IL-6 (p = 0.0037), TNFα (p < 0.0001), sTNFRα (p < 0.0001) and sIL-2R (p < 0.0001), while levels of oxLDL increase after KT (p < 0.0001) and there is not a significantly difference in anti-oxLDL. 12.8% of the patients had died in 2012. These patients had higher levels of IL-6 (p = 0.011) and sTNFRα (p < 0.006) after KT and a lower MDRD (p < 0.0001), hemoglobin (p = 0.012) and albumin (p = 0.007). We observed no statistically differences in the levels of markers previous KT. Of the patients who died, the 43.5% of them had anti-oxLDL antibody levels greater than 75th percentile (P75: 3781 UI/ml, p = 0.028). In the multivariate analysis, age (OR:1.12; p = 0.0129), MDRD (OR:0.92; p = 0.013) and P75 of anti-oxLDL(OR: 5.19; p = 0.026) were independent risk factors for mortality. Independent risk factors for survival were: P75 of IL-6 (HR: 2.45; p = 0.027), oxLDL (HR:19.85; p = 0.002) and anti-oxLDL (HR: 9.55; p = 0.003). CONCLUSIONS KT improved inflammation but not lipid oxidative state. KT patients who died had a higher inflammatory state (with higher levels of IL-6 and sTNFRα), a worse lipid oxidative state and a worse renal function 3 months after KT. Age, anti-oxLDL and renal function at 3 months after KT were independent risk factors for mortality.
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Bowel movement frequency and cardiovascular mortality, a matter of fibers and oxidative stress? Atherosclerosis 2016; 253:278-280. [PMID: 27594542 DOI: 10.1016/j.atherosclerosis.2016.08.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2016] [Accepted: 08/18/2016] [Indexed: 11/22/2022]
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Low-Grade Inflammation, Oxidative Stress and Risk of Invasive Post-Menopausal Breast Cancer - A Nested Case-Control Study from the Malmö Diet and Cancer Cohort. PLoS One 2016; 11:e0158959. [PMID: 27391324 PMCID: PMC4938491 DOI: 10.1371/journal.pone.0158959] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2015] [Accepted: 06/26/2016] [Indexed: 12/16/2022] Open
Abstract
OBJECTIVE Although cancer promotes inflammation, the role of inflammation in tumor-genesis is less well established. The aim was to examine if low-grade inflammation is related to post-menopausal breast cancer risk, and if obesity modifies this association. METHODS In the Malmö Diet and Cancer cohort, a nested case-control study was defined among 8,513 women free of cancer and aged 55-73 years at baseline (1991-96); 459 were diagnosed with invasive breast cancer during follow-up (until December 31st, 2010). In laboratory analyses of blood from 446 cases, and 885 controls (matched on age and date of blood sampling) we examined systemic inflammation markers: oxidized (ox)-LDL, interleukin (IL)-1β, IL-6, IL-8, tumor necrosis factor (TNF)-α, white blood cells, lymphocytes and neutrophils. Odds ratios (OR) and 95% confidence intervals (CI) for breast cancer risk was calculated using multivariable conditional logistic regression. RESULTS Inverse associations with breast cancer were seen in fully-adjusted models, for 2nd and 3rd tertiles of ox-LDL, OR (95% CI): 0.65 (0.47-0.90), 0.63 (0.45-0.89) respectively, p-trend = 0.01; and for the 3rd tertile of TNF-α, 0.65 (0.43-0.99), p-trend = 0.04. In contrast, those in the highest IL-1β category had higher risk, 1.71 (1.05-2.79), p-trend = 0.01. Obesity did not modify associations between inflammation biomarkers and breast cancer. CONCLUSION Our study does not suggest that low-grade inflammation increase the risk of post-menopausal breast cancer.
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Lee RA, Kim HA, Kang BY, Kim KH. Hemoglobin induces colon cancer cell proliferation by release of reactive oxygen species. World J Gastroenterol 2006; 12:5644-50. [PMID: 17007016 PMCID: PMC4088164 DOI: 10.3748/wjg.v12.i35.5644] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To study whether hemoglobin could amplify colon cancer cell proliferation via reactive oxygen species (ROS) production.
METHODS: Colon cancer cell line HT-29 was grown in the conventional method using RPMI1640 media. The viability of the cells was measured using the colorimetric MTT [3-(4, 5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide] assay after adding hemoglobin. We determined reactive oxygen species levels to be indicators of oxidative stress in HT 29 cell lines with and without hemoglobin and/or 5-fluorouracil (5-FU), 5’-deoxy-5-fluorouridine (5-DFUR) using fluorometric dichlorofluorescin diacetate (DCFH-DA) assay.
RESULTS: Cellular proliferation was increased with hemoglobin in a concentration-dependent manner. A significant increment on ROS levels was found in HT 29 cells following hemoglobin incubation. The cytotoxic effects of 5-FU and 5-DFUR were significantly blunted by administration of hemoglobin. There was a slight increase of peroxiredoxin 1, superoxide dismutase 1 concentration according to different hemoglobin concentrations.
CONCLUSION: Hemoglobin has a cellular proliferative effect on HT-29 colon cancer cell line by production of ROS. Also, hemoglobin abates cytotoxic effects of chemotherapeutic agents such as 5-FU and 5-DFUR.
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Affiliation(s)
- Ryung-Ah Lee
- Department of Surgery, Ewha Womans University Mokdong Hospital, 158-710, 911-1, Mokdong, Yangcheonku, Seoul, Korea.
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