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Napiórkowska-Mastalerz M, Wybranowski T, Bosek M, Kruszewski S, Rhone P, Ruszkowska-Ciastek B. A Preliminary Evaluation of Advanced Oxidation Protein Products (AOPPs) as a Potential Approach to Evaluating Prognosis in Early-Stage Breast Cancer Patients and Its Implication in Tumour Angiogenesis: A 7-Year Single-Centre Study. Cancers (Basel) 2024; 16:1068. [PMID: 38473424 DOI: 10.3390/cancers16051068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 02/28/2024] [Accepted: 03/04/2024] [Indexed: 03/14/2024] Open
Abstract
Breast cancer (BrC) is a highly prevalent tumour among women. The high incidence and mortality rate of BrC prompts researchers to search for new markers that will provide information on the possible impact of the therapy on the risk of cancer-related events. This study aimed to investigate whether the level of advanced oxidation protein products (AOPPs) may have a potential impact on disease-free (DFS) and overall survival (OS) in BrC patients with early-stage cancer. Additionally, we tried to assess the relationship between AOPPs and angiogenic parameters. In this study, the pre- and post-treatment AOPP levels were examined in the serum of 70 newly diagnosed BrC women. The receiver operating characteristic curve identified pre- and post-treatment AOPPs to be above 9.37 μM and 10.39 μM, respectively, as the best cut-off values to predict the risk of cancer relapse. Additionally, Kaplan-Meier survival analysis indicated that pre- and post-treatment AOPPs above 9.37 μM and 10.39 μM were associated with significantly poorer OS. The uni- and multivariate Cox regression analysis highlighted that lower levels of pre- and post-treatment AOPPs were associated with a longer duration without relapse or cancer-related death. A positive correlation between concentrations of pre-treatment AOPPs and vascular endothelial growth factor A, and negative correlations with levels of soluble forms of vascular endothelial growth factor receptor type 1 and 2, were found. In conclusion, AOPPs appear to have an important role in predicting cancer-related events and may potentially serve as a simple prognostic marker in clinical practice.
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Affiliation(s)
- Marta Napiórkowska-Mastalerz
- Department of Biophysics, Faculty of Pharmacy, Nicolaus Copernicus University, Collegium Medicum, 85-067 Bydgoszcz, Poland
| | - Tomasz Wybranowski
- Department of Biophysics, Faculty of Pharmacy, Nicolaus Copernicus University, Collegium Medicum, 85-067 Bydgoszcz, Poland
| | - Maciej Bosek
- Department of Biophysics, Faculty of Pharmacy, Nicolaus Copernicus University, Collegium Medicum, 85-067 Bydgoszcz, Poland
| | - Stefan Kruszewski
- Department of Biophysics, Faculty of Pharmacy, Nicolaus Copernicus University, Collegium Medicum, 85-067 Bydgoszcz, Poland
| | - Piotr Rhone
- Clinical Ward of Breast Cancer and Reconstructive Surgery, Oncology Centre Prof. F. Łukaszczyk Memorial Hospital, 85-796 Bydgoszcz, Poland
| | - Barbara Ruszkowska-Ciastek
- Department of Pathophysiology, Faculty of Pharmacy, Nicolaus Copernicus University, Collegium Medicum, 85-094 Bydgoszcz, Poland
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Mirjanic-Azaric B, Stankovic S, Nezic L, Radic Savic Z, Malcic- Zanic D, Skrbic R, Kotur-Stevuljevic J, Bogavac-Stanojevic N. Analysis of redox status and HDL subclasses in patients with lymphoma and the associations with FDG-PET/CT findings. Front Oncol 2023; 13:1221414. [PMID: 37965473 PMCID: PMC10642952 DOI: 10.3389/fonc.2023.1221414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 10/16/2023] [Indexed: 11/16/2023] Open
Abstract
Newer research points to alterations in the plasma redox status and the HDL subclass distributions in cancer. We aimed to assess the redox status and the HDL subclass distributions, lipids, and inflammatory markers in lymphoma patients in order to determine whether they were correlated with changes in FDG-PET/CT scans. At the beginning of this study, redox status, HDL subclasses, lipids, and inflammation biomarkers were determined in 58 patients with lymphoma (Hodgkin lymphoma, n=11 and non-Hodgkin lymphoma, n=47), and these same measurements were reassessed during their ensuing treatment (in 25 patients). Initially, the total oxidation status (TOS), the prooxidant-antioxidant balance (PAB), the OS index (OSI), the total protein sulfhydryl groups (SH-groups), and the advanced oxidation protein products (AOPP) were significantly higher in lymphoma patients as compared to healthy subjects, but the total antioxidant status (TAS) was significantly reduced. The PAB had a strong correlation with the CRP and interleukin-6 (rho=0.726, p<0.001; rho=0.386, p=0.003). The correlations between these parameters and the maximum standardized uptake values (SUVmax) were: PAB, rho=0.335 and p=0.010; SH-groups, rho=0.265 and p=0.044; CRP, rho=0.391 and p=0.002; HDL3b, rho=0.283 and p=0.031; HDL2b, rho= -0.294 and p=0.025; and HDL size, rho= -0.295 and p=0.024. The reductions in SUVmax between two follow-up points were associated with increases in the OSI, TOS, and SH-groups, as well as a reduction in the PAB and TAS. In conclusion, the redox parameters in patients with lymphoma were consistent with FDG-PET/CT findings. Targeting the redox status parameters and the HDL subclasses could be potential strategies in the molecular fight against lymphoma.
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Affiliation(s)
- Bosa Mirjanic-Azaric
- Department of Medical Biochemistry, Faculty of Medicine, University of Banja Luka, Banja Luka, Bosnia and Herzegovina
- Institute of Laboratory Diagnostic, University Clinical Centre of the Republic of Srpska, Banja Luka, Bosnia and Herzegovina
| | - Sinisa Stankovic
- Institute of Nuclear Medicine, University Clinical Centre of the Republic of Srpska, Banja Luka, Bosnia and Herzegovina
- Faculty of Medicine, University of Banja Luka, Banja Luka, Bosnia and Herzegovina
| | - Lana Nezic
- Department of Pharmacology, Toxicology and Clinical Pharmacology, Faculty of Medicine, University of Banja Luka, Banja Luka, Bosnia and Herzegovina
| | - Zana Radic Savic
- Department of Medical Biochemistry, Faculty of Medicine, University of Banja Luka, Banja Luka, Bosnia and Herzegovina
| | - Dragana Malcic- Zanic
- Department of Pediatrics, Faculty of Medicine, University of Banja Luka, Banja Luka, Bosnia and Herzegovina
| | - Ranko Skrbic
- Department of Pharmacology, Toxicology and Clinical Pharmacology, Faculty of Medicine, University of Banja Luka, Banja Luka, Bosnia and Herzegovina
- Academy of Sciences and Arts of the Republic of Srpska, Banja Luka, Bosnia and Herzegovina
| | - Jelena Kotur-Stevuljevic
- Department of Medical Biochemistry, University of Belgrade-Faculty of Pharmacy, Belgrade, Serbia
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Wang D, Feng Q, Luo Y, Wang W, Yan Y, Ding CF. Self-assembly of hydrazide-linked porous organic polymers rich in titanium for efficient enrichment of glycopeptides and phosphopeptides from human serum. Analyst 2023. [PMID: 37368458 DOI: 10.1039/d3an00709j] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/28/2023]
Abstract
In this work, titanium-rich hydrazide-linked porous organic polymers (hydrazide-POPs-Ti4+) were synthesized using hydrazine, 2,3-dihydroxyterephthalaldehyde (DHTA) and trimethyl 1,3,5-benzenetricarboxylate (TP) as the ligands. Hydrazide-POPs-Ti4+ combined with HILIC and IMAC can be used for simultaneous enrichment of glycopeptides and phosphopeptides. The detection limit of this protocol is 0.1 fmol μL-1 for glycopeptides and 0.005 fmol μL-1 for phosphopeptides, and the selectivities are 1 : 1000 and 1 : 2000 for glycopeptides and phosphopeptides, respectively. For practical bio-sample analysis, 201 glycopeptides associated with 129 glycoproteins and 26 phosphopeptides associated with 21 phosphoproteins were selectively captured from healthy human serum, and 186 glycopeptides associated with 117 glycoproteins and 60 phosphopeptides associated with 50 phosphoproteins were enriched in the serum of breast cancer patients. Gene Ontology analysis indicated that the identified glycoproteins and phosphoproteins were linked to breast cancer, including the binding of complement component C1q and low-density lipoprotein particles, protein oxidation and complement activation, suggesting that these connected pathways are probably engaged in the disease pathology of breast cancer.
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Affiliation(s)
- Danni Wang
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province, Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, China.
| | - Quanshou Feng
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province, Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, China.
| | - Yiting Luo
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province, Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, China.
| | - Weimin Wang
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province, Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, China.
| | - Yinghua Yan
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province, Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, China.
| | - Chuan-Fan Ding
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province, Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, China.
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Moghaddam FD, Heidari G, Zare EN, Djatoubai E, Paiva-Santos AC, Bertani FR, Wu A. Carbohydrate polymer-based nanocomposites for breast cancer treatment. Carbohydr Polym 2023; 304:120510. [PMID: 36641174 DOI: 10.1016/j.carbpol.2022.120510] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 12/23/2022] [Accepted: 12/24/2022] [Indexed: 12/30/2022]
Abstract
Breast cancer is known as the most common invasive malignancy in women with the highest mortality rate worldwide. This concerning disease may be presented in situ (relatively easier treatment) or be invasive, especially invasive ductal carcinoma which is highly worrisome nowadays. Among several strategies used in breast cancer treatment, nanotechnology-based targeted therapy is currently being investigated, as it depicts advanced technological features able of preventing drugs' side effects on normal cells while effectively acting on tumor cells. In this context, carbohydrate polymer-based nanocomposites have gained particular interest among the biomedical community for breast cancer therapy applications due to their advantage features, including abundance in nature, biocompatibility, straightforward fabrication methods, and good physicochemical properties. In this review, the physicochemical properties and biological activities of carbohydrate polymers and their derivate nanocomposites were discussed. Then, various methods for the fabrication of carbohydrate polymer-based nanocomposites as well as their application in breast cancer therapy and future perspectives were discussed.
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Affiliation(s)
- Farnaz Dabbagh Moghaddam
- Institute for Photonics and Nanotechnologies, National Research Council, Via Fosso del Cavaliere, 100, 00133, Rome, Italy
| | - Golnaz Heidari
- School of Chemistry, Damghan University, Damghan 36716-45667, Iran
| | | | - Essossimna Djatoubai
- International Research Center for Renewable Energy (IRCRE), State Key Laboratory of Multiphase Flow in Power Engineering (MPFE), Xi'an Jiaotong University, 28 West Xianning Road, Xi'an 710049, PR China
| | - Ana Cláudia Paiva-Santos
- Department of Pharmaceutical Technology, Faculty of Pharmacy of the University of Coimbra, University of Coimbra, Coimbra, Portugal; REQUIMTE/LAQV, Group of Pharmaceutical Technology, Faculty of Pharmacy of the University of Coimbra, University of Coimbra, Coimbra, Portugal
| | - Francesca Romana Bertani
- Institute for Photonics and Nanotechnologies, National Research Council, Via Fosso del Cavaliere, 100, 00133, Rome, Italy
| | - Aimin Wu
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, Zhejiang, 325027, China
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Biomarkers of oxidative stress and reproductive complications. Adv Clin Chem 2023; 113:157-233. [PMID: 36858646 DOI: 10.1016/bs.acc.2022.11.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Oxidative stress is the result of an imbalance between the formation of reactive oxygen species (ROS) and the levels of enzymatic and non-enzymatic antioxidants. The assessment of biological redox status is performed by the use of oxidative stress biomarkers. An oxidative stress biomarker is defined as any physical structure or process or chemical compound that can be assessed in a living being (in vivo) or in solid or fluid parts thereof (in vitro), the determination of which is a reproducible and reliable indicator of oxidative stress. The use of oxidative stress biomarkers allows early identification of the risk of developing diseases associated with this process and also opens up possibilities for new treatments. At the end of the last century, interest in oxidative stress biomarkers began to grow, due to evidence of the association between the generation of free radicals and various pathologies. Up to now, a significant number of studies have been carried out to identify and apply different oxidative stress biomarkers in clinical practice. Among the most important oxidative stress biomarkers, it can be mentioned the products of oxidative modifications of lipids, proteins, nucleic acids, and uric acid as well as the measurement of the total antioxidant capacity of fluids in the human body. In this review, we aim to present recent advances and current knowledge on the main biomarkers of oxidative stress, including the discovery of new biomarkers, with emphasis on the various reproductive complications associated with variations in oxidative stress levels.
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Ma W, Zhang S, Li Y, Chen T, Yang Q, Feng X. Adiponectin alleviates non-alcoholic fatty liver injury via regulating oxidative stress in liver cells. Minerva Med 2022; 113:990-999. [PMID: 32996726 DOI: 10.23736/s0026-4806.20.06734-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
BACKGROUND The aim of the present study was to investigate the role of adiponectin in non-alcoholic fatty liver cell model and its mechanism. METHODS The serum were collected from patients with non-alcoholic fatty liver disease and healthy controls. Then the expression of APN in the serum was detected using APN kit. Furthermore, an in vitro model of NAFLD was established using mixed fatty acids treated HepG2 cells, and APN was highly expressed in the culture solution to a concentration of 10 μg/mL. The normal control group (Normal) was normal cells, the model group (NAFLD) was mixed fatty acids treated HepG2 cells, the experimental group (NAFLD+APN) was model cells transfected with high APN expression, and the negative control group (NAFLD+PBS) was model cells transfected with PBS. The expression of NOX2 in each group was detected by Western blot. The corresponding kit was used to detect the level of triglyceride (TG), the activity of superoxide dismutase (SOD), the content of malondialdehyde (MDA), and the ratio of GSH/GSSG in each group of cells. RESULTS The expression level of APN was greatly decreased in the serum of NAFLD patients (P<0.01), and the TG content was significantly increased in HepG2 cells treated with fatty acids (P<0.001), indicating successful modeling. The cells had high expression of APN (P<0.001) showed low expression of NOX2 (P<0.001). The kit test results showed that the high expression of APN could reverse the decrease of SOD activity, the increase of MDA level, the decrease of GSH/GSSG ratio and the increase of TG content (P<0.001), all of which were restored to the modeling level after application of NOX2's activator TBCA. CONCLUSIONS APN was lowly expressed in the serum of NAFLD patients. Its effect mechanism was to alleviate the injury of NAFLD cells by reducing oxidative stress via regulating NOX2 expression.
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Affiliation(s)
- Wenwen Ma
- Department of Infectious Diseases, Shengli Oilfield Central Hospital, Dongying, China
| | - Shanshan Zhang
- Department of General Medical Science, Shengli Oilfield Central Hospital, Dongying, China
| | - Yi Li
- Department of Infectious Diseases, Shengli Oilfield Central Hospital, Dongying, China
| | - Tansheng Chen
- Department of Infectious Diseases, Shengli Oilfield Central Hospital, Dongying, China
| | - Qin Yang
- Department of Laboratory Medicine, Shengli Oilfield Central Hospital, Dongying, China
| | - Xue Feng
- Department of Infectious Diseases, Shengli Oilfield Central Hospital, Dongying, China -
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Kılıç N, Boyacıoğlu Ö, Saltoğlu GT, Bulduk EB, Kurt G, Korkusuz P. Thioredoxin System and miR-21, miR-23a/b and let-7a as Potential Biomarkers for Brain Tumor Progression: Preliminary Case Data. World Neurosurg 2022; 167:e1299-e1309. [PMID: 36096386 DOI: 10.1016/j.wneu.2022.09.024] [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: 08/22/2022] [Accepted: 09/05/2022] [Indexed: 11/25/2022]
Abstract
BACKGROUND The thioredoxin system and microRNAs (miRNAs) are potential targets for both cancer progression and treatment. However, the role of miRNAs and their relation with the expression profile of thioredoxin system in brain tumor progression remains unclear. METHODS In this study, we aimed to determine the expression profiles of redox components Trx-1, TrxR-1 and PRDX-1, and oncogenic miR-21, miR-23a/b and let-7a and oncosuppressor miR-125 in different brain tumor tissues and their association with increasing tumor grade. We studied Trx-1, TrxR-1, and PRDX-1 messenger RNA expression levels by quantitative real-time polymerase chain reaction and protein levels by Western blot and miR-23a, miR-23b, miR-125a, miR-21, and let-7a miRNA expression levels by quantitative real-time polymerase chain reaction in 16 glioma, 15 meningioma, 5 metastatic, and 2 benign tumor samples. We also examined Trx-1, TrxR-1, and PRDX-1 protein levels in serum samples of 36 patients with brain tumor and 37 healthy volunteers by enzyme-linked immunosorbent assay. RESULTS We found that Trx-1, TrxR-1, and PRDX-1 presented high messenger RNA expression but low protein expression in low-grade brain tumor tissues, whereas they showed higher protein expression in sera of patients with low-grade brain tumors. miR-23b, miR-21, miR-23a, and let-7a were highly expressed in low-grade brain tumor tissues and positively correlated with the increase in thioredoxin system activity. CONCLUSIONS Our findings showed that Trx-1, TrxR-1, miR-21, miR-23a/b, and let-7a might be used for brain tumor diagnosis in the clinic. Further prospective studies including molecular pathway analyses are required to validate the miRNA/Trx system regulatory axis in brain tumor progression.
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Affiliation(s)
- Nedret Kılıç
- Department of Medical Biochemistry, Faculty of Medicine, Atılım University, Gölbaşı, Ankara, Turkey.
| | - Özge Boyacıoğlu
- Department of Medical Biochemistry, Faculty of Medicine, Atılım University, Gölbaşı, Ankara, Turkey; Department of Bioengineering, Graduate School of Science and Engineering, Hacettepe University, Beytepe, Ankara, Turkey
| | - Gamze Turna Saltoğlu
- Department of Biochemistry, Faculty of Medicine, Kırşehir Ahi Evran University, Bağbaşı, Kırşehir, Turkey
| | - Erkut Baha Bulduk
- Department of Neurosurgery, Faculty of Medicine, Atılım University, Gölbaşı, Ankara, Turkey
| | - Gökhan Kurt
- Department of Neurosurgery, Faculty of Medicine, Gazi University, Beşevler, Ankara, Turkey
| | - Petek Korkusuz
- Department of Histology and Embryology, Faculty of Medicine, Hacettepe University, Sıhhiye, Ankara, Turkey
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Zou L, Jiang W, Wang Z, Zhu S, Chen J. Effect of Advanced Oxidation Protein Products (AOPPs) and aging on the osteoclast differentiation of Myeloid-Derived Suppressor Cells (MDSCs) and its preliminary mechanism. Biochem Biophys Res Commun 2022; 636:87-96. [DOI: 10.1016/j.bbrc.2022.10.066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Revised: 10/09/2022] [Accepted: 10/18/2022] [Indexed: 11/28/2022]
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Barartabar Z, Moini N, Abbasalipourkabir R, Mesbah-Namin SA, Ziamajidi N. Assessment of Tissue Oxidative Stress, Antioxidant Parameters, and Zinc and Copper Levels in Patients with Breast Cancer. Biol Trace Elem Res 2022; 201:3233-3244. [PMID: 36221018 DOI: 10.1007/s12011-022-03439-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 10/02/2022] [Indexed: 12/09/2022]
Abstract
Breast cancer is a multifactorial disease, and among the many factors which are involved in the onset, progression, and invasion of the disease, oxidative stress plays a significant role. The concentration and activity of enzymatic antioxidants are proportional to the concentration of trace elements, and the concentration of trace elements is often deficient in malignancies. Therefore, in the present study, we studied the tissue levels of oxidative stress, antioxidant status, zinc (Zn), and copper (Cu) in breast cancer patients. Tissue samples were collected from 40 patients with breast cancer and 40 tumor margin tissue as a control group. All subjects gave their informed consent. The tissue samples were measured for superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPX), total antioxidants capacity (TAC), total oxidant status (TOS), oxidative stress index (OSI), malondialdehyde (MDA), Zn, and Cu. Data of all biochemical parameters of two groups were statistically analyzed by SPSS software, t test, and GraphPad Prism. Concentrations of MDA, TOS, and OSI in tumor tissue were significantly higher than tumor margin tissue, but the level of TAC and CAT, SOD, and GPX activities was significantly reduced in tumor tissue (p<0.05). It was found that the concentrations of Zn and Cu in breast cancer patients were higher than tumor margin tissue. Patients with breast cancer have a rise in oxidative stress indicators and a decrease in antioxidant stress markers. Since oxidative stress is a significant contributor to the development and progression of breast cancer, more research might lead to a more effective method of breast cancer treatment. Considering the dual role of oxidative stress in cancer, which can both cause survival and adaptation, and the death of cancer cells, and with more information, it can be used to manage the treatment and destruction of cancer cells.
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Affiliation(s)
- Zeinab Barartabar
- Department of Clinical Biochemistry, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Nazi Moini
- Breast Cancer Research Center, Motamed Cancer Institute, ACERCR, Tehran, Iran
| | - Roghayeh Abbasalipourkabir
- Department of Clinical Biochemistry, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Seyed Alireza Mesbah-Namin
- Department of Clinical Biochemistry, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Nasrin Ziamajidi
- Department of Clinical Biochemistry, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran.
- Molecular Medicine Research Center, Hamadan University of Medical Science, Hamadan, Iran.
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Association between Oxidative Stress Parameters and Hematological Indices in Breast Cancer Patients. Int J Breast Cancer 2022; 2022:1459410. [PMID: 36225290 PMCID: PMC9550463 DOI: 10.1155/2022/1459410] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 09/18/2022] [Accepted: 09/23/2022] [Indexed: 11/17/2022] Open
Abstract
Background Breast cancer is one of the leading causes of death in women worldwide. This causes an increase in free radicals, resulting in oxidative stress. The aim of this study was to determine the effect of breast cancer on oxidative stress and its relationship with hematological indices. Methods This case-control study included 43 women with breast cancer and 37 age-matched healthy controls. Oxidative stress and its correlation with hematological profiles over seven months were evaluated. Finally, the data were compared between the two groups using the t-test and Pearson's test, and the results were analyzed using the SPSS 24 software. Results The results revealed that patients with breast cancer had significantly increased hemoglobin (HB), hematocrit (HCT), mean corpuscular volume (MCV), and mean corpuscular hemoglobin (MCH) levels compared with healthy subjects (p < 0.05). In addition, oxidative stress parameters, such as superoxide dismutase (SOD), catalase (CAT), total oxidant status (TOS), and total antioxidant capacity (TAC), were significantly elevated. Glutathione peroxidase (GPX) and malondialdehyde (MDA) were significantly lower in patients with breast cancer than in the control group (p < 0.05). Statistical significance in hematological indices showed a positive or negative correlation with oxidative stress parameters. Conclusion Women with breast cancer showed a deranged complete blood count (CBC) pattern compared to healthy individuals.
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Neganova M, Liu J, Aleksandrova Y, Klochkov S, Fan R. Therapeutic Influence on Important Targets Associated with Chronic Inflammation and Oxidative Stress in Cancer Treatment. Cancers (Basel) 2021; 13:6062. [PMID: 34885171 PMCID: PMC8657135 DOI: 10.3390/cancers13236062] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Revised: 11/28/2021] [Accepted: 11/28/2021] [Indexed: 01/17/2023] Open
Abstract
Chronic inflammation and oxidative stress are the interconnected pathological processes, which lead to cancer initiation and progression. The growing level of oxidative and inflammatory damage was shown to increase cancer severity and contribute to tumor spread. The overproduction of reactive oxygen species (ROS), which is associated with the reduced capacity of the endogenous cell defense mechanisms and/or metabolic imbalance, is the main contributor to oxidative stress. An abnormal level of ROS was defined as a predisposing factor for the cell transformation that could trigger pro-oncogenic signaling pathways, induce changes in gene expression, and facilitate accumulation of mutations, DNA damage, and genomic instability. Additionally, the activation of transcription factors caused by a prolonged oxidative stress, including NF-κB, p53, HIF1α, etc., leads to the expression of several genes responsible for inflammation. The resulting hyperactivation of inflammatory mediators, including TNFα, TGF-β, interleukins, and prostaglandins can contribute to the development of neoplasia. Pro-inflammatory cytokines were shown to trigger adaptive reactions and the acquisition of resistance by tumor cells to apoptosis, while promoting proliferation, invasion, and angiogenesis. Moreover, the chronic inflammatory response leads to the excessive production of free radicals, which further aggravate the initiated reactions. This review summarizes the recent data and progress in the discovery of mechanisms that associate oxidative stress and chronic inflammation with cancer onset and metastasis. In addition, the review provides insights for the development of therapeutic approaches and the discovery of natural substances that will be able to simultaneously inhibit several key oncological and inflammation-related targets.
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Affiliation(s)
- Margarita Neganova
- Department of Radiation Oncology, The First Affiliated Hospital of Zhengzhou University, Erqi, Zhengzhou 450000, China; (M.N.); (J.L.)
- Institute of Physiologically Active Compounds, Russian Academy of Sciences, 142432 Chernogolovka, Russia;
| | - Junqi Liu
- Department of Radiation Oncology, The First Affiliated Hospital of Zhengzhou University, Erqi, Zhengzhou 450000, China; (M.N.); (J.L.)
- Cancer Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Yulia Aleksandrova
- Institute of Physiologically Active Compounds, Russian Academy of Sciences, 142432 Chernogolovka, Russia;
| | - Sergey Klochkov
- Institute of Physiologically Active Compounds, Russian Academy of Sciences, 142432 Chernogolovka, Russia;
| | - Ruitai Fan
- Department of Radiation Oncology, The First Affiliated Hospital of Zhengzhou University, Erqi, Zhengzhou 450000, China; (M.N.); (J.L.)
- Cancer Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
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Demirci-Çekiç S, Özkan G, Avan AN, Uzunboy S, Çapanoğlu E, Apak R. Biomarkers of Oxidative Stress and Antioxidant Defense. J Pharm Biomed Anal 2021; 209:114477. [PMID: 34920302 DOI: 10.1016/j.jpba.2021.114477] [Citation(s) in RCA: 107] [Impact Index Per Article: 35.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 10/27/2021] [Accepted: 11/11/2021] [Indexed: 12/13/2022]
Abstract
A number of reactive oxygen and nitrogen species are produced during normal metabolism in human body. These species can be both radical and non-radical and have varying degrees of reactivity. Although they have some important functions in the human body, such as contributing to signal transmission and the immune system, their presence must be balanced by the antioxidant defense system. The human body has an excellent intrinsic enzymatic antioxidant system in addition to different non-enzymatic antioxidants having small molecular masses. An extrinsic source of antioxidants are foodstuffs such as fruits, vegetables, herbs and spices, mostly rich in polyphenols. When the delicate biochemical balance between oxidants and antioxidants is disturbed in favor of oxidants, "oxidative stress" conditions emerge, under which reactive species can cause oxidative damage to biomacromolecules such as proteins, carbohydrates, lipids and DNA. This oxidative damage is often associated with cancer, aging, and neurodegenerative disorders. Because reactive species are extremely short-lived, it is almost impossible to measure their concentrations directly. Although there are certain methods such as ESR / EPR that serve this purpose, they have some disadvantages and are quite costly systems. Therefore, products generated from oxidative damage of proteins, lipids and DNA are often used to quantify the extent of oxidative damage rather than direct measurement of reactive species. These oxidative damage products are usually known as biomarkers. Determination of the concentrations of these biomarkers and changes in the concentration of protective antioxidants can provide useful information for avoiding certain diseases and keep healthy conditions.
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Affiliation(s)
- Sema Demirci-Çekiç
- Department of Chemistry, Faculty of Engineering, Istanbul University-Cerrahpasa, Avcilar, 34320 Istanbul, Turkey
| | - Gülay Özkan
- Department of Food Engineering, Faculty of Chemical and Metallurgical Engineering, Istanbul Technical Uviversity, Istanbul, Turkey
| | - Aslı Neslihan Avan
- Department of Chemistry, Faculty of Engineering, Istanbul University-Cerrahpasa, Avcilar, 34320 Istanbul, Turkey
| | - Seda Uzunboy
- Department of Chemistry, Faculty of Engineering, Istanbul University-Cerrahpasa, Avcilar, 34320 Istanbul, Turkey
| | - Esra Çapanoğlu
- Department of Food Engineering, Faculty of Chemical and Metallurgical Engineering, Istanbul Technical Uviversity, Istanbul, Turkey.
| | - Reşat Apak
- Department of Chemistry, Faculty of Engineering, Istanbul University-Cerrahpasa, Avcilar, 34320 Istanbul, Turkey; Turkish Academy of Sciences (TUBA), Vedat Dalokay St. No. 112, Cankaya, 06670 Ankara, Turkey.
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de Jesus Leite MAF, Mariano IM, Dechichi JGC, Giolo JS, Gonçalves ÁDC, Puga GM. Exercise training and detraining effects on body composition, muscle strength and lipid, inflammatory and oxidative markers in breast cancer survivors under tamoxifen treatment. Life Sci 2021; 284:119924. [PMID: 34480935 DOI: 10.1016/j.lfs.2021.119924] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 08/16/2021] [Accepted: 08/24/2021] [Indexed: 12/14/2022]
Abstract
AIMS The present study aimed to verify the effects of resistance training (RT) and successive detraining on body composition, muscle strength and lipid profile as primary outcome, and the oxidative stress and inflammatory markers as second outcome of postmenopausal Breast Cancer (BC) survivors undergoing tamoxifen (TA). MAIN METHODS Fourteen postmenopausal BC survivors underwent 12 weeks of resistance exercise training and subsequently 12 weeks of detraining. Anthropometric parameters, lipid profile, muscle strength, inflammatory cytokines and the oxidative stress markers, were assessed before, after the training period and after detraining period. KEY FINDINGS One-way ANOVA showed that fat mass decrease (39.4 ± 6.9 to 37.7 ± 6.8%) and free-fat mass increase (39.3 ± 4.9 to 40.3 ± 5.6%) after RT. Muscle strength increased in response to training but decreased after the detraining period. Triglycerides (156 ± 45 to 123 ± 43 mg/dL) and total cholesterol (202 ± 13 to 186 ± 16 mg/dL) decreased after the RT and HDL-cholesterol (47 ± 9 to 56 ± 9 mg/dL) increased after RT and remained higher (53 ± 10 mg/dL) than after detraining. IL-6 increases (24.65 ± 10.85 to 41.42 ± 22.88 pg/mL) and IL-17 (2.42 ± 0.32 to 1.69 ± 0.19 pg/mL), TBARS (1.91 ± 0.19 to 1.03 ± 0.1 μmol/L), SOD (24.65 ± 10.85 to 41.42 ± 22.88 U/gHb) and Catalase activity (445.9 ± 113.0 to 345.8 ± 81.7 k/gHb·s) reduced after RT and remained lower after detraining. SIGNIFICANCE Resistance exercise training improves health markers of BC survivors undergoing TA and detraining are not sufficient to reverse the positive effects in oxidative stress markers.
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Affiliation(s)
- Marco Aurélio Ferreira de Jesus Leite
- Laboratory of Cardiorespiratory and Metabolic Physiology, Faculty of Physical Education, Federal University of Uberlândia, Uberlândia, Minas Gerais, Brazil
| | - Igor Moraes Mariano
- Laboratory of Cardiorespiratory and Metabolic Physiology, Faculty of Physical Education, Federal University of Uberlândia, Uberlândia, Minas Gerais, Brazil
| | - Juliene Gonçalves Costa Dechichi
- Laboratory of Cardiorespiratory and Metabolic Physiology, Faculty of Physical Education, Federal University of Uberlândia, Uberlândia, Minas Gerais, Brazil
| | - Jéssica Sanjulião Giolo
- Laboratory of Cardiorespiratory and Metabolic Physiology, Faculty of Physical Education, Federal University of Uberlândia, Uberlândia, Minas Gerais, Brazil
| | | | - Guilherme Morais Puga
- Laboratory of Cardiorespiratory and Metabolic Physiology, Faculty of Physical Education, Federal University of Uberlândia, Uberlândia, Minas Gerais, Brazil.
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Impact of Physical Activity on Oxidative Stress Markers in Patients with Metastatic Breast Cancer. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:6694594. [PMID: 34326920 PMCID: PMC8302399 DOI: 10.1155/2021/6694594] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 06/03/2021] [Accepted: 06/26/2021] [Indexed: 11/18/2022]
Abstract
Purpose Regular physical activity (PA) can affect oxidative stress, known to be involved in carcinogenesis. The objective of this study was to evaluate the associations between a six-month PA intervention and oxidative stress biomarkers, PA, and clinical outcomes in patients with metastatic breast cancer. Methods Forty-nine newly diagnosed patients with metastatic breast cancer were recruited for a single-arm, unsupervised, and personalized six-month walking intervention with activity tracker. PA level and PA fitness, plasma concentrations of DNA oxidation (8OhdG), lipid peroxidation (MDA), and protein oxidation (AOPP), plasma activities of superoxide dismutase (SOD), glutathione peroxidase (GPX), and catalase, plasma and leucocyte activities of myeloperoxidase (MPO) and NADPH oxidase (NOX), and clinical markers of tumor progression (RECIST criteria) were measured at baseline and after the six-month intervention. Results GPX activity (+17%) and MDA (+9%) significantly increased between baseline and the end of the intervention. Changes in PA level and fitness were significantly positively correlated with changes in plasma GPX and significantly negatively with changes in NOX in the leucocytes. Plasma MDA was significantly higher (+20%) whereas plasma AOPP was lower (-46%) for patients with tumor progression or that died during the six months as compared to patients without progression. Conclusion A six-month PA intervention may be potentially beneficial in metastatic breast cancer patients for enhancing antioxidant enzyme activity and decreasing prooxidant enzyme activity. Moreover, AOPP and MDA could also be favorable and unfavorable biomarkers, respectively, since they are associated with disease progression and fitness level in this population. This trial is registered with NCT number: NCT03148886.
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Zhou C, Zhang Y, Chen J, Mei C, Xiong F, Shi W, Zhou W, Liu X, Sun S, Tian J, Ye Z, Wu Q, Qin X, Jiang J, Hou FF. Association between serum advanced oxidation protein products and mortality risk in maintenance hemodialysis patients. J Transl Med 2021; 19:284. [PMID: 34193178 PMCID: PMC8247246 DOI: 10.1186/s12967-021-02960-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 06/23/2021] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND The association between serum advanced oxidation protein products (AOPP) and mortality risk remains equivocal. We aimed to assess the correlation of serum AOPP levels with the risk of all-cause mortality in hemodialysis (HD) patients. METHODS A total of 1394 maintenance HD patients with complete data on AOPP and related parameters were included from China Collaborative Study on Dialysis (CCSD), a multi-center, prospective cohort study. The primary outcome was all-cause mortality, the secondary outcome was cardiovascular disease (CVD) mortality. RESULTS During a median follow-up duration of 5.2 years (IQR, 2.1-5.4), all-cause mortality occurred in 492 (31.4%) participants. Overall, there was a reversed L-shaped association between serum AOPP and all-cause mortality in HD patients (P for nonlinearity = 0.04), with an inflection point at 87 µmol/L. Accordingly, there was no significant association between serum AOPP and all-cause mortality (per SD increment; HR, 0.94; 95%CI, 0.84, 1.05) in participants with AOPP < 87 µmol/L. However, there was a positive relationship of serum AOPP and all-cause mortality (per SD increment; HR, 1.24; 95%CI, 1.08, 1.42) in those with AOPP ≥ 87 µmol/L. Moreover, a similar trend was found for CVD mortality. CONCLUSIONS Elevated serum AOPP levels were associated with higher risk of all-cause mortality in Chinese maintenance HD patients.
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Affiliation(s)
- Chun Zhou
- Division of Nephrology, National Clinical Research Center for Kidney Disease, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Renal Failure Research, Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangdong Provincial Clinical Research Center for Kidney Disease, Nanfang Hospital, Southern Medical University, Guangdong Provincial Institute of Nephrology, Guangzhou, 510515, China
| | - Yuanyuan Zhang
- Division of Nephrology, National Clinical Research Center for Kidney Disease, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Renal Failure Research, Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangdong Provincial Clinical Research Center for Kidney Disease, Nanfang Hospital, Southern Medical University, Guangdong Provincial Institute of Nephrology, Guangzhou, 510515, China
| | - Jianghua Chen
- Kidney Disease Center, College of Medicine, The First Affiliated Hospital, Zhejiang University, Hangzhou, China
| | - Changlin Mei
- Division of Nephrology, Changzheng Hospital, Shanghai, China
| | - Fei Xiong
- Department of Nephrology, Wuhan No. 1 Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wei Shi
- Department of Nephrology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Wei Zhou
- Department of Nephrology, The 8th Medical Center of Chinese, PLA General Hospital, Beijing, China
| | - Xusheng Liu
- Departmentof Nephrology, Guangdong Provincial Hospital of Chinese Medicine (The Second Affiliated Hospital of Guangzhou University of Chinese Medicine), Guangzhou, China
| | - Shiren Sun
- Department of Nephrology, Xijing Hospital, Xi'an, China
| | - Jianwei Tian
- Division of Nephrology, National Clinical Research Center for Kidney Disease, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Renal Failure Research, Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangdong Provincial Clinical Research Center for Kidney Disease, Nanfang Hospital, Southern Medical University, Guangdong Provincial Institute of Nephrology, Guangzhou, 510515, China
| | - Ziliang Ye
- Division of Nephrology, National Clinical Research Center for Kidney Disease, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Renal Failure Research, Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangdong Provincial Clinical Research Center for Kidney Disease, Nanfang Hospital, Southern Medical University, Guangdong Provincial Institute of Nephrology, Guangzhou, 510515, China
| | - Qimeng Wu
- Division of Nephrology, National Clinical Research Center for Kidney Disease, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Renal Failure Research, Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangdong Provincial Clinical Research Center for Kidney Disease, Nanfang Hospital, Southern Medical University, Guangdong Provincial Institute of Nephrology, Guangzhou, 510515, China
| | - Xianhui Qin
- Division of Nephrology, National Clinical Research Center for Kidney Disease, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Renal Failure Research, Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangdong Provincial Clinical Research Center for Kidney Disease, Nanfang Hospital, Southern Medical University, Guangdong Provincial Institute of Nephrology, Guangzhou, 510515, China
| | - Jianping Jiang
- Division of Nephrology, National Clinical Research Center for Kidney Disease, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Renal Failure Research, Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangdong Provincial Clinical Research Center for Kidney Disease, Nanfang Hospital, Southern Medical University, Guangdong Provincial Institute of Nephrology, Guangzhou, 510515, China.
| | - Fan Fan Hou
- Division of Nephrology, National Clinical Research Center for Kidney Disease, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Renal Failure Research, Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangdong Provincial Clinical Research Center for Kidney Disease, Nanfang Hospital, Southern Medical University, Guangdong Provincial Institute of Nephrology, Guangzhou, 510515, China.
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Kundaktepe BP, Sozer V, Durmus S, Kocael PC, Kundaktepe FO, Papila C, Gelisgen R, Uzun H. The evaluation of oxidative stress parameters in breast and colon cancer. Medicine (Baltimore) 2021; 100:e25104. [PMID: 33725987 PMCID: PMC7982186 DOI: 10.1097/md.0000000000025104] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 02/19/2021] [Indexed: 01/05/2023] Open
Abstract
Our aim in this study was to investigate the relationship between serum ischemia modified albumin (IMA) levels with oxidative stress parameters [protein carbonyl (PCO), advanced protein oxidation products (AOPPs), malondialdehyde (MDA), total nitric oxide (NOx), prooxidant-antioxidant balance (PAB), and ferric reducing of antioxidant power (FRAP)] in breast cancer (BC) and colon cancer (CC).In total, 90 patients undergoing surgical treatment for BC (n = 45) or CC (n = 45) and 35 healthy controls were included in this cross-sectional study.The serum PCO, AOPPs, MDA, NOx, PAB, and IMA levels were all statistically significantly higher in the cancer patients than in the control group. MDA, NOx, and PAB levels were significantly lower in the BC group than in the CC group. FRAP values were statistically significantly lower in both the CC group and the BC group compared to the control. IMA showed a weak positive correlation with CA-19.9 (r = 0.423 P = .007) but a moderate positive correlation with tumor size in the CC group. IMA showed a positive correlation with metastasis, grade, and HER2 and a negative correlation with ER and PR in the BC group.Oxidative stress is a key player in the development of solid malignancies. Cancer development is a multistage process, and oxidative stress caused by the production of ROS/RNS in the breast and colon may predispose individuals to BC and CC. Patients with BC and CC had an impaired oxidative/antioxidant condition that favored oxidative stress. The ROC analysis indicated that IMA sensitivity above 80% could be used as a secondary biomarker in diagnosis.
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Affiliation(s)
| | - Volkan Sozer
- Department of Biochemistry, Yildiz Technical University
| | - Sinem Durmus
- Department of Medical Biochemistry, Faculty of Cerrahpasa Medicine, Istanbul University-Cerrahpasa
| | - Pinar Cigdem Kocael
- Department of General Surgery, Faculty of Cerrahpasa Medicine, Istanbul University-Cerrahpasa
| | | | - Cigdem Papila
- Department of Internal Medicine, Division of Oncology, Faculty of Cerrahpasa Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Remise Gelisgen
- Department of Medical Biochemistry, Faculty of Cerrahpasa Medicine, Istanbul University-Cerrahpasa
| | - Hafize Uzun
- Department of Medical Biochemistry, Faculty of Cerrahpasa Medicine, Istanbul University-Cerrahpasa
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Yang JL, Li XL, Jiang FL, Gong T, Chen JJ, Chen TJ, Zhu P. High-level soluble expression of human Cu,Zn superoxide dismutase with high activity in Escherichia coli. World J Microbiol Biotechnol 2020; 36:106. [DOI: 10.1007/s11274-020-02883-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Accepted: 06/29/2020] [Indexed: 12/12/2022]
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Beneficial Molecular Adaptations In BRCA-Mutation Carriers By Combined HIT/HIRT Intervention: Results From A Pilot Study. Cancers (Basel) 2020; 12:cancers12061526. [PMID: 32532068 PMCID: PMC7352264 DOI: 10.3390/cancers12061526] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 06/02/2020] [Accepted: 06/06/2020] [Indexed: 12/30/2022] Open
Abstract
Based on growing evidence that breast cancer (BRCA) also plays a pivotal role in the regulation of skeletal muscle metabolism and the response to anti-oxidative stress, we examined the influence of regular exercise in human BRCA mutation carriers on their BRCA1 gene/protein expression and inflammatory/oxidative response. Sixteen BRCA-mutation carriers were assigned to an intervention (IG) or control group (CG). IG received a combination of high-intensity interval endurance (HIT) and strength training (HIRT) for six weeks, whereas CG received a low-intensity activity program. Before (T0) and at the end of the intervention (T1), muscle biopsy, physiological performance, blood withdrawal and anthropometry were obtained. Parameters included: Muscle BRCA1 gene/protein expression, inflammatory/oxidative stress, anti-oxidative capacity, peak oxygen capacity (VO2peak) and 1-repetition maximum (1-RM) at six different training machines. VO2peak and 1-RM of IG were increased at T1 compared to T0, whereas CG performance, physiological and molecular parameters remained unchanged. IG showed increased BRCA1 protein concentration as well as anti-oxidative capacity, whereas gene expression was unaltered. IG inflammatory and oxidative damage did not differ between time points. Combined HIT/HIRT increases aerobic and strength performance of BRCA-mutation carriers with up regulated BRCA1 protein expression and improved anti-oxidative status without showing an increased inflammatory response.
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Zhang X, Yao C, Bian W, Chen X, Xue J, Zhu Z, Ying Y, Xu YL, Wang C. Effects of Astragaloside IV on treatment of breast cancer cells execute possibly through regulation of Nrf2 via PI3K/AKT/mTOR signaling pathway. Food Sci Nutr 2019; 7:3403-3413. [PMID: 31762993 PMCID: PMC6848822 DOI: 10.1002/fsn3.1154] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2019] [Revised: 05/17/2019] [Accepted: 05/28/2019] [Indexed: 12/30/2022] Open
Abstract
Traditional Chinese medicine (TCM) has from ancient times been applied in China for the treatment of breast cancer with its own unique theoretical system. Sanhuang decoction composed of astragalus membranaceus, prepared rhubarb, and rhizoma curcumae longae has traditionally been used for antioxidant stress, inflammatory reaction, and angiogenesis. However, the role and mechanism of Sanhuang decoction in breast cancer remains unknown. The present study demonstrated the antitumor activity of Sanhuang decoction against breast cancer xenografts in nude mice. Notably, Sanhuang decoction promoted severe necrosis and induced cell death. In addition, Sanhuang decoction obviously regulated the inflammation and oxidative stress. Despite these, Sanhuang decoction could increase the expression of Nrf2. Moreover, si-Nrf2 exhibited the opposite effects compared with the Sanhuang decoction treatment group and reversed the antibreast cancer role of Sanhuang decoction. Further, Sanhuang decoction remarkably suppressed the expression of PI3K/AKT/mTOR signaling pathway. Taken together, Sanhuang decoction was firstly evaluated to possess potent antibreast cancer effect in vivo through regulation of inflammation and oxidative stress accomplished by up-regulation of Nrf2 via PI3K/AKT/mTOR signaling pathway and Sanhuang decoction might be a powerful candidate formula for antibreast cancer.
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Affiliation(s)
- Xiao‐Qing Zhang
- The Affiliated Hospital of Nanjing University of Chinese MedicineNanjingChina
| | - Chang Yao
- The Affiliated Hospital of Nanjing University of Chinese MedicineNanjingChina
| | - Wei‐He Bian
- The Affiliated Hospital of Nanjing University of Chinese MedicineNanjingChina
| | - Xu Chen
- The Affiliated Hospital of Nanjing University of Chinese MedicineNanjingChina
| | - Jing‐Xian Xue
- The Affiliated Hospital of Nanjing University of Chinese MedicineNanjingChina
| | - Zhi‐Yuan Zhu
- The Affiliated Hospital of Nanjing University of Chinese MedicineNanjingChina
| | - Yu Ying
- The Affiliated Hospital of Nanjing University of Chinese MedicineNanjingChina
| | - Yan Lei Xu
- The Affiliated Hospital of Nanjing University of Chinese MedicineNanjingChina
| | - Cong Wang
- The Affiliated Hospital of Nanjing University of Chinese MedicineNanjingChina
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Zińczuk J, Maciejczyk M, Zaręba K, Romaniuk W, Markowski A, Kędra B, Zalewska A, Pryczynicz A, Matowicka-Karna J, Guzińska-Ustymowicz K. Antioxidant Barrier, Redox Status, and Oxidative Damage to Biomolecules in Patients with Colorectal Cancer. Can Malondialdehyde and Catalase Be Markers of Colorectal Cancer Advancement? Biomolecules 2019; 9:biom9100637. [PMID: 31652642 PMCID: PMC6843197 DOI: 10.3390/biom9100637] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2019] [Revised: 10/16/2019] [Accepted: 10/22/2019] [Indexed: 12/24/2022] Open
Abstract
This study is the first to assess the diagnostic utility of redox biomarkers in patients with colorectal cancer (CRC). Antioxidant barrier (Cu,Zn-superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), glutathione reductase (GR), uric acid (UA), reduced glutathione (GSH)), redox status (total antioxidant (TAC)/oxidant status (TOS), ferric reducing ability (FRAP)), and oxidative damage products (advanced glycation end products (AGE), advanced oxidation protein products (AOPP), malondialdehyde (MDA)) were measured in serum/plasma samples of 50 CRC patients. The activity of SOD was significantly higher whereas the activity of CAT, GPx and GR was considerably lower in CRC patients compared to the control group (p < 0.0001). Levels of UA, TOS, and OSI and concentrations of AGE, AOPP, and MDA were significantly higher, and the levels of GSH, TAC, and FRAP were considerably lower in CRC patients compared to the healthy controls (p < 0.0001). AUC for CAT with respect to presence of lymph node metastasis was 0.7450 (p = 0.0036), whereas AUC for MDA according to the depth of tumour invasion was 0.7457 (p = 0.0118). CRC is associated with enzymatic/non-enzymatic redox imbalance as well as increased oxidative damage to proteins and lipids. Redox biomarkers can be potential diagnostic indicators of CRC advancement.
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Affiliation(s)
- Justyna Zińczuk
- Department of Clinical Laboratory Diagnostics, Medical University of Bialystok, Waszyngtona 15a, 15-269 Białystok, Poland.
| | - Mateusz Maciejczyk
- Department of Hygiene, Epidemiology and Ergonomics, Medical University of Bialystok, Mickiewicza 2c, 15-222 Białystok, Poland.
| | - Konrad Zaręba
- nd Clinical Department of General and Gastroenterological Surgery, Medical University of Bialystok, M. Skłodowskiej-Curie 24a, 15-276 Białystok, Poland.
| | - Wioletta Romaniuk
- Department of Haematology, Medical University of Bialystok, M. Skłodowskiej-Curie 24A, 15-276 Białystok, Poland.
| | - Adam Markowski
- Department of Internal Medicine and Gastroenterology, Polish Red Cross Memorial Municipal Hospital, Sienkiewicza 79, 15-003 Bialystok, Poland.
| | - Bogusław Kędra
- nd Clinical Department of General and Gastroenterological Surgery, Medical University of Bialystok, M. Skłodowskiej-Curie 24a, 15-276 Białystok, Poland.
| | - Anna Zalewska
- Department of Conservative Dentistry, Medical University of Bialystok, M. Skłodowskiej-Curie 24A, 15-276 Białystok, Poland.
| | - Anna Pryczynicz
- Department of General Pathomorphology, Medical University of Bialystok, Waszyngtona 13, 15-269 Białystok, Poland.
| | - Joanna Matowicka-Karna
- Department of Clinical Laboratory Diagnostics, Medical University of Bialystok, Waszyngtona 15a, 15-269 Białystok, Poland.
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Ye S, Chen X, Yao Y, Li Y, Sun R, Zeng H, Shu Y, Yin H. Thioredoxin Reductase as a Novel and Efficient Plasma Biomarker for the Detection of Non-Small Cell Lung Cancer: a Large-scale, Multicenter study. Sci Rep 2019; 9:2652. [PMID: 30804354 PMCID: PMC6389956 DOI: 10.1038/s41598-018-38153-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Accepted: 12/19/2018] [Indexed: 12/24/2022] Open
Abstract
There is an increased demand for efficient biomarkers for the diagnosis of non-small cell lung cancer (NSCLC). This study aimed to evaluate plasma levels of TrxR activity in a large population to confirm its validity and efficacy in NSCLC diagnosis. Blood samples were obtained from 1922 participants (638 cases of NSCLC, 555 cases of benign lung diseases (BLDs) and 729 sex- and age-matched healthy controls). The plasma levels of TrxR activity in patients with NSCLC (15.66 ± 11.44 U/ml) were significantly higher (P < 0.01) than in patients with BLDs (6.27 ± 3.78 U/ml) or healthy controls (2.05 ± 1.86 U/ml). The critical value of plasma TrxR activity levels for diagnosis of NSCLC was set at 10.18 U/ml, with a sensitivity of 71.6% and a specificity of 91.9%. The combination of NSE, CEA, CA19-9, Cyfra21-1, and TrxR was more effective for NSCLC diagnosis (sensitivity and specificity in the training set: 85.6%, 90.2%; validation set: 86.2%, 92.4%) than was each biomarker individually (P < 0.001). TrxR can also efficiently distinguish the metastatic status of the tumor, and it can further differentiate between various histological differentiations. Together, plasma TrxR activity was identified as a convenient, non-invasive, and efficient biomarker for the diagnosis of NSCLCs, particularly for discriminating between metastatic and non-metastatic tumors, or for histologic differentiation.
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Affiliation(s)
- Suofu Ye
- State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Beijing, China
| | - Xiaofeng Chen
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Yi Yao
- Cancer Center, Renmin Hospital of Wuhan University, Wuhan, China.
| | - Yueqin Li
- Keaise Center for Clinical Laboratory, Wuhan, China
| | - Ruoxuan Sun
- State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Beijing, China
| | - Huihui Zeng
- State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Beijing, China
| | - Yongqian Shu
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.
| | - Hanwei Yin
- Keaise Center for Clinical Laboratory, Wuhan, China.
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Rao Bitla A, Sateesh R, Budugu S, Mutheeswariah Y, Narendra H, Phaneedra BV, Lakshmi AY. Oxidative stress in relation to obesity in breast cancer. Indian J Cancer 2019; 56:41-44. [DOI: 10.4103/ijc.ijc_247_18] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Oxidant stress induction and signalling in xenografted (human breast cancer-tissues) plus estradiol treated or N-ethyl-N-nitrosourea treated female rats via altered estrogen sulfotransferase (rSULT1E1) expressions and SOD1/catalase regulations. Mol Biol Rep 2018; 45:2571-2584. [PMID: 30315444 DOI: 10.1007/s11033-018-4425-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Accepted: 10/05/2018] [Indexed: 12/16/2022]
Abstract
N-ethyl-N-nitrosourea (ENU) is highly used in rodent models of tumerogenesis/carcinogenesis. Xenografting human-cancer tissues/cells with estradiol (E2) treatment is also used to generate rodent-models of gynaecological cancers. The altered metabolic-redox environment leading to establishment of pre-tumorigenesis condition and their mechanism are less studied. Here, female Wister rats were treated with these drugs at their pre-tumerogenic dosage (one group ENU single intra-peritoneal dose of 90 mg/kg b.w. and another group were implanted with human breast tumor (stage-IIIB) and fed with 2.5 mg of 17β-estradiol once in a week for 4 months). After 4 months, animals were sacrificed; their serum and liver tissues were tested. A brief comparison was made with a rat model (regarded as positive control) of toxicity induced by mutagenic environmental pollutant arsenic (0.6 ppm daily/4 weeks). The increase in serum alkaline phosphatase and glutamate-pyruvate transaminase suggests the possible organ toxicity is favoured by the increase in hepatic/systemic free radicals and oxidative stress in all drug application models. But the increase in the serum E2 level as noted in the ELISA data with impairment in the hepatic estrogen sulfotransferase (SULT1E1) protein expression (immuno-blot data) were noticed with interfered hepatic free-thiols only in ENU and xenograft-E2 group compared to arsenic group. It is also evident in the in vitro result from E2/GSH/NAC added hepatic slices with altered antioxidant regulations. Moreover, impairment in hepatic SOD1, catalase and glutathiole peroxidase activities (PAGEzymographic data), especially in the ENU-treated group makes them more vulnerable to the oxidative threat in creating pre-tumerogenic microenvironment. This is evident in the result of their higher DNA-damage and histological abnormalities. The Bioinformatics study revealed an important role of rSULT1E1 in the regulations of E2 metabolism. This study is important for the exploration of the pre-tumerogenic condition by ENU and E2 by impairing SULT1E1 expression and E2 regulations via oxidant-stress signalling. The finding may help to find new therapeutic-targets to treat gynaecological-cancers more effectively.
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Badawy AA, El-Magd MA, AlSadrah SA. Therapeutic Effect of Camel Milk and Its Exosomes on MCF7 Cells In Vitro and In Vivo. Integr Cancer Ther 2018; 17:1235-1246. [PMID: 29986606 PMCID: PMC6247558 DOI: 10.1177/1534735418786000] [Citation(s) in RCA: 84] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Background/Objectives: In the Middle East, people consume camel milk regularly as it is believed to improve immunity against diseases and decrease the risk for cancer. Recently, it was noted that most of the beneficial effects of milk come from their nanoparticles, especially exosomes. Herein, we evaluated the anticancer potential of camel milk and its exosomes on MCF7 breast cancer cells (in vitro and in vivo) and investigated the possible underlying molecular mechanism of action. Methods/Results: Administration of camel milk (orally) and its exosomes (orally and by local injection) decreased breast tumor progression as evident by (a) higher apoptosis (indicated by higher DNA fragmentation, caspase-3 activity, Bax gene expression, and lower Bcl2 gene expression), (b) remarkable inhibition of oxidative stress (decrease in MDA levels and iNOS gene expression); (c) induction of antioxidant status (increased activities of SOD, CAT, and GPX), (d) notable reduction in expression of inflammation-(IL1b, NFκB), angiogenesis-(VEGF) and metastasis-(MMP9, ICAM1) related genes; and (e) higher immune response (high number of CD+4, CD+8, NK1.1 T cells in spleen). Conclusions: Overall, administration of camel milk–derived exosomes showed better anticancer effect, but less immune response, than treatment by camel milk. Moreover, local injection of exosomes led to better improvement than oral administration. These findings suggest that camel milk and its exosomes have anticancer effect possibly through induction of apoptosis and inhibition of oxidative stress, inflammation, angiogenesis and metastasis in the tumor microenvironment. Thus, camel milk and its exosomes could be used as an anticancer agent for cancer treatment.
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Affiliation(s)
- Abdelnaser A Badawy
- 1 Department of Biochemistry, Faculty of Medicin, Northern Border University, Arar, Saudi Arabia.,2 Department of Medical Biochemistry, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Mohammed A El-Magd
- 3 Department of Anatomy, Faculty of Veterinary Medicine, Kafrelsheikh University, Kafrelsheikh, Egypt
| | - Sana A AlSadrah
- 4 Department of Preventive Medicine, Governmental Hospital Khobar, Health Centers in Khobar, Ministry of Health, Saudi Arabia
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25
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Rabelo-Santos SH, Termini L, Boccardo E, Derchain S, Longatto-Filho A, Andreoli MA, Costa MC, Lima Nunes RA, Lucci Ângelo-Andrade LA, Villa LL, Zeferino LC. Strong SOD2 expression and HPV-16/18 positivity are independent events in cervical cancer. Oncotarget 2018; 9:21630-21640. [PMID: 29774090 PMCID: PMC5955150 DOI: 10.18632/oncotarget.24850] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Accepted: 03/11/2018] [Indexed: 12/16/2022] Open
Abstract
It is well known that persistent infection with high-risk HPV (hr-HPV), mostly HPV-16 and 18, is the main cause of cervical cancer development. Manganese superoxide dismutase (MnSOD or SOD2) are highly expressed in different neoplasia. The present study investigated SOD2 protein expression and the presence of hr-HPV types in 297 cervical samples including non-neoplastic tissue, cervical intraepithelial neoplasia grade 3 (CIN3), squamous cell carcinoma (SCC) and adenocarcinoma (ADC). Strong SOD2 expression was significantly higher in ADC (82%) than CIN3 (52%) or SCC (64%). There was no association between SOD2 expression and HPV 16 and/or 18 detection for every lesion analyzed. Binary Logist Regression revealed that strong SOD2 expression (OR: 27.50, 6.16-122.81) and HPV 16 and/or HPV 18 (OR: 12.67, 4.04-39.74) were independently more associated with CIN3 than non-neoplastic cervix. Strong SOD2 expression (OR: 3.30, 1.23-8.86) and HPV 16 and/or HPV 18 (OR: 3.51, 1.03-11.87) were independently more associated with ADC than SCC. Similar findings for SOD2 expression were observed by the Cochran Mantel-Haenszel test, controlling for HPV-16 and/or HPV 18. In conclusion, the expression of SOD2 was increased in CIN3 and SCC, and more increased in cervical ADC than in SCC. Strong SOD2 expression was statistically independent of the presence of HPV 16 and/or 18. These findings suggest that the mitochondrial antioxidant system and HPV infection could follow independent pathways in the carcinogenesis of cervical epithelium and in the differentiation to SCC or ADC of the cervix.
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Affiliation(s)
| | - Lara Termini
- Innovation in Cancer Laboratory, Center of Translational Research in Oncology, Cancer Institute of São Paulo (ICESP - Instituto do Câncer do Estado de São Paulo), Faculty of Medicine of University of São Paulo (FMUSP - Faculdade de Medicina da Universidade de São Paulo), São Paulo, São Paulo, Brazil
| | - Enrique Boccardo
- Laboratory of Oncovirology, Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo (USP - Universidade de São Paulo), São Paulo, São Paulo, Brazil
| | - Sophie Derchain
- Department of Obstetrics and Gynecololy, State University of Campinas (UNICAMP - Universidade Estadual de Campinas), Campinas, São Paulo, Brazil
| | - Adhemar Longatto-Filho
- Laboratory of Medical Research, Faculty of Medicine of University of São Paulo (Faculdade de Medicina da Universidade de São Paulo-FMUSP), São Paulo, São Paulo, Brazil.,Institute of Life Sciences and Health, Faculty of Health Sciences, (ICVS), University of Minho, Braga, Portugal
| | | | - Maria Cecília Costa
- Innovation in Cancer Laboratory, Center of Translational Research in Oncology, Cancer Institute of São Paulo (ICESP - Instituto do Câncer do Estado de São Paulo), Faculty of Medicine of University of São Paulo (FMUSP - Faculdade de Medicina da Universidade de São Paulo), São Paulo, São Paulo, Brazil
| | - Rafaella Almeida Lima Nunes
- Innovation in Cancer Laboratory, Center of Translational Research in Oncology, Cancer Institute of São Paulo (ICESP - Instituto do Câncer do Estado de São Paulo), Faculty of Medicine of University of São Paulo (FMUSP - Faculdade de Medicina da Universidade de São Paulo), São Paulo, São Paulo, Brazil
| | | | - Luisa Lina Villa
- Innovation in Cancer Laboratory, Center of Translational Research in Oncology, Cancer Institute of São Paulo (ICESP - Instituto do Câncer do Estado de São Paulo), Faculty of Medicine of University of São Paulo (FMUSP - Faculdade de Medicina da Universidade de São Paulo), São Paulo, São Paulo, Brazil.,Department of Radiology and Oncology, Faculty of Medicine of University of São Paulo (FMUSP - Faculdade de Medicina da Universidade de São Paulo-USP), São Paulo, São Paulo, Brazil
| | - Luiz Carlos Zeferino
- Department of Obstetrics and Gynecololy, State University of Campinas (UNICAMP - Universidade Estadual de Campinas), Campinas, São Paulo, Brazil
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26
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Kudryavtseva AV, Krasnov GS, Dmitriev AA, Alekseev BY, Kardymon OL, Sadritdinova AF, Fedorova MS, Pokrovsky AV, Melnikova NV, Kaprin AD, Moskalev AA, Snezhkina AV. Mitochondrial dysfunction and oxidative stress in aging and cancer. Oncotarget 2018; 7:44879-44905. [PMID: 27270647 PMCID: PMC5216692 DOI: 10.18632/oncotarget.9821] [Citation(s) in RCA: 330] [Impact Index Per Article: 55.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Accepted: 05/28/2016] [Indexed: 12/16/2022] Open
Abstract
Aging and cancer are the most important issues to research. The population in the world is growing older, and the incidence of cancer increases with age. There is no doubt about the linkage between aging and cancer. However, the molecular mechanisms underlying this association are still unknown. Several lines of evidence suggest that the oxidative stress as a cause and/or consequence of the mitochondrial dysfunction is one of the main drivers of these processes. Increasing ROS levels and products of the oxidative stress, which occur in aging and age-related disorders, were also found in cancer. This review focuses on the similarities between ageing-associated and cancer-associated oxidative stress and mitochondrial dysfunction as their common phenotype.
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Affiliation(s)
- Anna V Kudryavtseva
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia.,National Medical Research Radiological Center, Ministry of Health of the Russian Federation, Moscow, Russia
| | - George S Krasnov
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
| | - Alexey A Dmitriev
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
| | - Boris Y Alekseev
- National Medical Research Radiological Center, Ministry of Health of the Russian Federation, Moscow, Russia
| | - Olga L Kardymon
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
| | - Asiya F Sadritdinova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia.,National Medical Research Radiological Center, Ministry of Health of the Russian Federation, Moscow, Russia
| | - Maria S Fedorova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
| | | | - Nataliya V Melnikova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
| | - Andrey D Kaprin
- National Medical Research Radiological Center, Ministry of Health of the Russian Federation, Moscow, Russia
| | - Alexey A Moskalev
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia.,Moscow Institute of Physics and Technology, Dolgoprudny, Russia
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27
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Zhou Y, Yan D, Yuan S, Chen Y, Fletcher EE, Shi H, Han B. Selective binding, magnetic separation and purification of histidine-tagged protein using biopolymer magnetic core-shell nanoparticles. Protein Expr Purif 2017; 144:5-11. [PMID: 29154996 DOI: 10.1016/j.pep.2017.11.004] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Revised: 11/10/2017] [Accepted: 11/11/2017] [Indexed: 01/03/2023]
Abstract
In previous studies, we synthesized the magnetic core-shell structured Fe3O4/PMG/IDA-Ni2+ nanoparticles. The Ni2+ on the surface of nanoparticles provides abundant docking sites for histidine, and the composite nanoparticles showed potential applications in the separation and purification of histidine-tagged (His-tagged) proteins. Meanwhile, the presence of the superparamagnetic core (Fe3O4) in the nanoparticles allows them to be quickly separated and purified by an external magnetic field. Herein, the ability of magnetic nanoparticles to purify His-tagged human superoxide dismutase 1 (hSOD1) was verified. SDS-PAGE and activity data showed His-tagged hSOD1 specifically bound to Fe3O4/PMG/IDA-Ni2+, and there was no significant competition for binding between final and three intermediate products. The binding capacity of nanoparticles can reach to 62.0 mg/g (dry weight of hSOD1/nanoparticles). The nanoparticle-bound hSOD1 exhibited better thermal and storage stability compared to free hSOD1. Furthermore, the purification efficiency of the magnetic nanoparticles in the separation and purification of His-tagged proteins was comparable to the other two commercial materials (High Affinity Ni-NTA Resin, HisPur Ni-NTA Magnetic Beads). Finally, the magnetic nanoparticles can be reused in the binding of His-tagged protein for multiple times. In conclusion, the nanoparticles are ready to be applied in the separation and purification of His-tagged protein.
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Affiliation(s)
- Yang Zhou
- Institute of Life Sciences, Jiangsu University, No. 301 Xuefu Road, Zhenjiang 212013, PR China
| | - Dandan Yan
- Institute of Life Sciences, Jiangsu University, No. 301 Xuefu Road, Zhenjiang 212013, PR China
| | - Shaofei Yuan
- Institute of Life Sciences, Jiangsu University, No. 301 Xuefu Road, Zhenjiang 212013, PR China
| | - Yawen Chen
- Institute of Life Sciences, Jiangsu University, No. 301 Xuefu Road, Zhenjiang 212013, PR China
| | - Emmanuella E Fletcher
- Institute of Life Sciences, Jiangsu University, No. 301 Xuefu Road, Zhenjiang 212013, PR China
| | - Haifeng Shi
- Institute of Life Sciences, Jiangsu University, No. 301 Xuefu Road, Zhenjiang 212013, PR China
| | - Bangxing Han
- College of Biological and Pharmaceutical Engineering, West Anhui University, Moon Island, Lu'an 237012, PR China.
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28
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Khoubnasabjafari M, Ansarin K, Jouyban A. Comments on "An Investigation into the Serum Thioredoxin, Superoxide Dismutase, Malondialdehyde, and Advanced Oxidation Protein Products in Patients with Breast Cancer". Ann Surg Oncol 2017; 24:573-576. [PMID: 29086135 DOI: 10.1245/s10434-017-6182-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Indexed: 11/18/2022]
Affiliation(s)
- Maryam Khoubnasabjafari
- Hematology and Oncology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Khalil Ansarin
- Tuberculosis and Lung Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Abolghasem Jouyban
- Pharmaceutical Analysis Research Center and Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran.
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29
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Lessa AH, Cruz IBMD, Manica-Cattani MF, Moresco RN, Duarte MMMF, Costa MJ. Impact of Lipid-Inflammatory-Oxidative Metabolism on Auditory Skills after Hearing Aid Fitting in the Elderly. Audiol Neurootol 2017; 22:146-153. [PMID: 28982105 DOI: 10.1159/000461570] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Accepted: 02/09/2017] [Indexed: 01/13/2023] Open
Abstract
This study aimed to assess whether lipid-inflammatory-oxidative metabolism influences auditory processing skills, and whether they function in changing auditory performance after hearing aid fitting in the elderly. Twelve subjects with bilateral hearing loss were submitted to blood tests (to check their lipid-inflammatory-oxidative metabolism) and auditory processing skill tests. After 3 months of using the hearing aids, their auditory skills were re-evaluated and the data were correlated statistically. Oxidative stress levels mainly showed some impact on auditory temporal processing; such a relation and others should best be examined in further studies with larger populations.
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30
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Azizi S, Khoubnasabjafari M, Shahrisa A, Khoubnasabjafari M, Soleymani J, Jouyban A. Effects of Analytical Procedures on the Repeatability of Malondialdehyde Determinations in Biological Samples. PHARMACEUTICAL SCIENCES 2017. [DOI: 10.15171/ps.2017.29] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
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31
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De Logu F, Tonello R, Materazzi S, Nassini R, Fusi C, Coppi E, Li Puma S, Marone IM, Sadofsky LR, Morice AH, Susini T, Terreni A, Moneti G, Di Tommaso M, Geppetti P, Benemei S. TRPA1 Mediates Aromatase Inhibitor–Evoked Pain by the Aromatase Substrate Androstenedione. Cancer Res 2016; 76:7024-7035. [DOI: 10.1158/0008-5472.can-16-1492] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Revised: 08/13/2016] [Accepted: 09/01/2016] [Indexed: 11/16/2022]
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32
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A possible reason for the low reproducibility of malondialdehyde determinations in biological samples. Bioanalysis 2016; 8:2179-2181. [PMID: 27667475 DOI: 10.4155/bio-2016-0228] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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33
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Sobhani M, Taheri AR, Jafarian AH, Hashemy SI. The activity and tissue distribution of thioredoxin reductase in basal cell carcinoma. J Cancer Res Clin Oncol 2016; 142:2303-7. [PMID: 27601162 DOI: 10.1007/s00432-016-2242-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Accepted: 08/30/2016] [Indexed: 01/05/2023]
Abstract
PURPOSE Basal cell carcinoma (BCC) is the most prevalent cancer worldwide. Different mechanisms are proposed to be involved in its pathogenesis such as oxidative stress. Oxidative stress, which is the consequence of the disruption of redox balance in favor of oxidants, is involved in the initiation or progression of many tumors. Thioredoxin reductase (TrxR) is a key enzyme of the thioredoxin (Trx) system, containing Trx and TrxR and NADPH, which is one of the main cellular oxidoreductases with an essential role in cellular health and survival through providing and maintaining redox balance. Therefore, we aimed to study and compare the activity and tissue distribution of TrxR in tumoral tissue and its healthy margin in patients with BCC. METHODS After biopsy and taking samples from 18 patients, TrxR activity was measured using a commercial kit and its tissue distribution was assessed immunohistochemically. RESULTS Both the activity and tissue distribution of TrxR in tumoral tissues were significantly higher compared to their healthy margins. Regarding the tissue distribution, this significant increase in TrxR in tumoral tissues was documented based on both staining intensity and abundance of positive cells in immunohistochemistry. CONCLUSIONS Based on these results, it is concluded that TrxR is involved in the pathogenesis of BCC; however, more investigations are required to clarify whether this increase is a consequence of BCC or it is an initiating mechanism.
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Affiliation(s)
- Maryam Sobhani
- Department of Emergency Medicine, Imam Reza Hospital, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Ahmad-Reza Taheri
- Department of Dermatology, Imam Reza Hospital, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amir-Hossein Jafarian
- Department of Pathology, Qaem Hospital, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Seyed Isaac Hashemy
- Surgical Oncology Research Centre, Mashhad University of Medical Sciences, Mashhad, Iran.
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34
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Romli F, Abu N, Khorshid FA, Syed Najmuddin SUF, Keong YS, Mohamad NE, Hamid M, Alitheen NB, Nik Abd Rahman NMA. The Growth Inhibitory Potential and Antimetastatic Effect of Camel Urine on Breast Cancer Cells In Vitro and In Vivo. Integr Cancer Ther 2016; 16:540-555. [PMID: 27338742 PMCID: PMC5739131 DOI: 10.1177/1534735416656051] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Although it may sound unpleasant, camel urine has been consumed extensively for years in the Middle East as it is believed to be able to treat a wide range of diseases such as fever, cold, or even cancer. People usually take it by mixing small drops with camel milk or take it directly. The project aims to study the effects of camel urine in inhibiting the growth potential and metastatic ability of 4T1 cancer cell line in vitro and in vivo. Based on the MTT result, the cytotoxicity of camel urine against 4T1 cell was established, and it was dose-dependent. Additionally, the antimetastatic potential of camel urine was tested by running several assays such as scratch assay, migration and invasion assay, and mouse aortic ring assay with promising results in the ability of camel urine to inhibit metastatic process of the 4T1 cells. In order to fully establish camel urine's potential, an in vivo study was carried out by treating mice inoculated with 4T1 cells with 2 different doses of camel urine. By the end of the treatment period, the tumor in both treated groups had reduced in size as compared to the control group. Additional assays such as the TUNEL assay, immunophenotyping, cytokine level detection assay, clonogenic assay, and proteome profiler demonstrated the capability of camel urine to reduce and inhibit the metastatic potential of 4T1 cells in vivo. To sum up, further study of anticancer properties of camel urine is justified, as evidenced through the in vitro and in vivo studies carried out. Better results were obtained at higher concentration of camel urine used in vivo. Apart from that, this project has laid out the mechanisms employed by the substance to inhibit the growth and the metastatic process of the 4T1 cell.
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Affiliation(s)
- Firdaus Romli
- 1 Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Nadiah Abu
- 1 Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | | | | | | | | | - Muhajir Hamid
- 1 Universiti Putra Malaysia, Serdang, Selangor, Malaysia
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35
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Zamberi NR, Abu N, Mohamed NE, Nordin N, Keong YS, Beh BK, Zakaria ZAB, Nik Abdul Rahman NMA, Alitheen NB. The Antimetastatic and Antiangiogenesis Effects of Kefir Water on Murine Breast Cancer Cells. Integr Cancer Ther 2016; 15:NP53-NP66. [PMID: 27230756 PMCID: PMC5739168 DOI: 10.1177/1534735416642862] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Revised: 02/11/2016] [Accepted: 02/19/2016] [Indexed: 12/11/2022] Open
Abstract
Background. Kefir is a unique cultured product that contains beneficial probiotics. Kefir culture from other parts of the world exhibits numerous beneficial qualities such as anti-inflammatory, immunomodulation, and anticancer effects. Nevertheless, kefir cultures from different parts of the world exert different effects because of variation in culture conditions and media. Breast cancer is the leading cancer in women, and metastasis is the major cause of death associated with breast cancer. The antimetastatic and antiangiogenic effects of kefir water made from kefir grains cultured in Malaysia were studied in 4T1 breast cancer cells. Methods. 4T1 cancer cells were treated with kefir water in vitro to assess its antimigration and anti-invasion effects. BALB/c mice were injected with 4T1 cancer cells and treated orally with kefir water for 28 days. Results. Kefir water was cytotoxic toward 4T1 cells at IC50 (half-maximal inhibitory concentration) of 12.5 and 8.33 mg/mL for 48 and 72 hours, respectively. A significant reduction in tumor size and weight (0.9132 ± 0.219 g) and a substantial increase in helper T cells (5-fold) and cytotoxic T cells (7-fold) were observed in the kefir water–treated group. Proinflammatory and proangiogenic markers were significantly reduced in the kefir water–treated group. Conclusions. Kefir water inhibited tumor proliferation in vitro and in vivo mainly through cancer cell apoptosis, immunomodulation by stimulating T helper cells and cytotoxic T cells, and anti-inflammatory, antimetastatic, and antiangiogenesis effects. This study brought out the potential of the probiotic beverage kefir water in cancer treatment.
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Affiliation(s)
| | - Nadiah Abu
- Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | | | | | | | - Boon Kee Beh
- Universiti Putra Malaysia, Serdang, Selangor, Malaysia
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36
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Gornitsky M, Velly AM, Mohit S, Almajed M, Su H, Panasci L, Schipper HM. Altered Levels of Salivary 8-oxo-7-hydrodeoxyguanosine in Breast Cancer. JDR Clin Trans Res 2016; 1:171-177. [PMID: 30931794 DOI: 10.1177/2380084416642197] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Oxidative stress has been implicated in the pathogenesis of breast cancer (BC). To determine whether BC is associated with altered salivary redox homeostasis, we performed a case-control study assessing the relationship between BC and 8-oxo-7-hydrodeoxyguanosine (8-oxodG), a marker for oxidative damage to DNA. Enzyme-linked immunosorbent assay for 8-oxodG was used on whole, unstimulated saliva of 134 BC patients and 226 healthy controls. Associations of the redox data were assessed by analysis of variance and logistic regression analysis. Our results revealed that there were 1) significantly lower mean levels of salivary 8-oxodG in BC patients versus controls ( P = 0.0005), 2) significantly lower levels among participants who did not receive radiotherapy and/or chemotherapy as compared with controls ( P < 0.0001), 3) significantly lower levels among BC patients who did not receive these treatments than among those who did ( P < 0.02), 4) and no significant differences in mean 8-oxodG levels among BC patients positive or negative for estrogen receptor, progesterone receptor, and human epidermal growth factor receptor 2 ( P ≥ 0.08). Our results suggest that BC is associated with decreased levels of oxidatively modified DNA in saliva. Knowledge Transfer Statement: The results of our current case-control study indicate that the molecular biomarker of oxidative stress 8-oxo-7-hydrodeoxyguanosine, measured from saliva, is associated with breast cancer. Our findings may provide the basis for future studies on molecular biomarkers of oxidative stress and breast cancer using saliva as an accessible and noninvasive tissue.
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Affiliation(s)
- M Gornitsky
- 1 Department of Dentistry, Jewish General Hospital, Montreal, Canada.,2 Lady Davis Institute for Medical Research, Jewish General Hospital, Montreal, Canada.,3 Faculty of Dentistry, McGill University, Montreal, Canada
| | - A M Velly
- 1 Department of Dentistry, Jewish General Hospital, Montreal, Canada.,2 Lady Davis Institute for Medical Research, Jewish General Hospital, Montreal, Canada.,3 Faculty of Dentistry, McGill University, Montreal, Canada
| | - S Mohit
- 1 Department of Dentistry, Jewish General Hospital, Montreal, Canada.,2 Lady Davis Institute for Medical Research, Jewish General Hospital, Montreal, Canada
| | - M Almajed
- 4 Oncology Department, Jewish General Hospital, Montreal, Canada.,5 Faculty of Medicine, McGill University, Montreal, Canada
| | - H Su
- 6 Gansu Provincial Academic Institute for Medical Research, Lanzhou, China
| | - L Panasci
- 4 Oncology Department, Jewish General Hospital, Montreal, Canada.,7 McGill Centre for Translational Research in Cancer, Montreal, Canada
| | - H M Schipper
- 2 Lady Davis Institute for Medical Research, Jewish General Hospital, Montreal, Canada.,8 Department of Neurology and Neurosurgery, McGill University, Montreal, Canada
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37
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Wu Q, Zhong ZM, Pan Y, Zeng JH, Zheng S, Zhu SY, Chen JT. Advanced Oxidation Protein Products as a Novel Marker of Oxidative Stress in Postmenopausal Osteoporosis. Med Sci Monit 2015; 21:2428-32. [PMID: 26286507 PMCID: PMC4547543 DOI: 10.12659/msm.894347] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Advanced oxidation protein products (AOPPs) are acknowledged as a novel marker of oxidation-mediated protein damage. This study aimed to investigate the plasma levels of AOPPs in postmenopausal osteoporotic women, and to determine the relationship between AOPPs accumulation and lumbar bone mineral destiny (BMD) or bone turnover markers. MATERIAL AND METHODS Lumbar BMD was measured by dual-energy X-ray absorptiometry. Plasma AOPPs levels as a marker of protein oxidation damage and malondialdehyde (MDA) levels as a marker of lipid peroxidation were measured by spectrophotometry. The concentrations of 2 specific markers of bone turnover, bone-specific alkaline phosphatase (BALP) and tartrate-resistant acid phosphatase5b, (TRACP 5b) were quantified using ELISA kits. RESULTS We recruited 60 postmenopausal women meeting osteoporosis (OP) diagnostic criteria of World Health Organization (WHO) and 60 postmenopausal women without OP. Plasma levels of AOPPs (P<0.001), BALP (P<0.001) and TRACP 5b (P<0.001) were statistically significantly increased in the postmenopausal osteoporotic women compared with controls, but there was no statistically significant difference in MDA (P=0.124) between the 2 groups. Plasma AOPPs levels were negatively correlated with lumbar BMD and positively correlated with bone turnover markers both in postmenopausal osteoporotic women and in all subjects. However, plasma MDA levels were not correlated with lumbar BMD or bone turnover markers. CONCLUSIONS In postmenopausal osteoporotic women elevated AOPPs is associated with reduced BMD and increased bone turnover markers. Because AOPPs is stable and easy to detect it may be used as a simple plasma marker to predict the severity of postmenopausal OP.
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Affiliation(s)
- Qian Wu
- Department of Spinal Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China (mainland)
| | - Zhao-Ming Zhong
- Department of Spinal Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China (mainland)
| | - Ying Pan
- Department of Oncology, Affiliated Jiujiang Hospital of Nanchang University, Jiujiang, Jiangxi, China (mainland)
| | - Ji-Huan Zeng
- Department of Orthopedics, Jiangxi Provincial People's Hospital, Nanchang, Jiangxi, China (mainland)
| | - Shuai Zheng
- Department of Spinal Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China (mainland)
| | - Si-Yuan Zhu
- Department of Spinal Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China (mainland)
| | - Jian-Ting Chen
- Department of Spinal Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China (mainland)
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38
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Silva TO, Jung IEC, Moresco RN, Barbisan F, Ribeiro EE, Ribeiro EAM, Motta K, Britto E, Tasch E, Bochi G, Duarte MMF, Oliveira AR, Marcon M, Belló C, dos Santos Montagner GF, da Cruz IBM. Association between advanced oxidation protein products and 5-year mortality risk among amazon riparian elderly population. Free Radic Res 2014; 49:204-9. [PMID: 25496432 DOI: 10.3109/10715762.2014.992895] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Proteins are important targets of several modifications caused by oxidative stress, leading to structural changes and consequently partial or total loss of their functions. The oxidized proteins include advanced oxidation protein products (AOPP) derived from oxidation-modified albumin, as well as fibrinogen and lipoproteins. An increase in AOPP levels indicates an oxidative stress state and the presence of coexisting inflammation. Several investigations have also suggested an association between high AOPP levels and aging-related diseases. However, the link between elevated AOPP levels and elderly mortality risk has not yet been investigated. Here, we report on a 5-year longitudinal study that investigated the potential association between AOPP levels and mortality using a population-based representative sample of riparian elders living in Brazilian Amazon region (Maués-AM). Age, sex, socioeconomic and cultural conditions, chronic morbidities, polypharmacy, and previous morbidities were also tested as potential confounders. The AOPP levels were measured in 540 (84.78%) individuals, all of whom were followed over a 5-year period in order to establish the mortality rate. Within this study period, 74 (13.7%) elders died and 466 (86.3%) survived. The AOPP levels were higher among the elders who died within the 5-year period (46.27 ± 40.6 mmol/L) compared with those who survived (36.79 ± 20.84 mmol/L) (p = 0.002). The analysis confirmed the link between high AOPP levels and mortality risk, independent of other intervenient factors. These results suggest that elevated AOPP levels could be used to predict mortality risk in elderly patients.
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Affiliation(s)
- T O Silva
- Programa de Pós-Graduação em Bioquímica Toxicológica, Universidade Federal de Santa Maria , Brazil
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