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Paunovic M, Milosevic M, Mitrovic-Ajtic O, Velickovic N, Micic B, Nedic O, Todorovic V, Vucic V, Petrovic S. Polyphenol-rich black currant and cornelian cherry juices ameliorate metabolic syndrome induced by a high-fat high-fructose diet in Wistar rats. Heliyon 2024; 10:e27709. [PMID: 38590904 PMCID: PMC10999883 DOI: 10.1016/j.heliyon.2024.e27709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 03/05/2024] [Accepted: 03/05/2024] [Indexed: 04/10/2024] Open
Abstract
Diets high in fat and sugar lead to metabolic syndrome (MetS) and related chronic diseases. We investigated the effects of commercially available, cold-pressed polyphenol-rich black currant (BC) and cornelian cherry (CC) juices on the prevention of MetS in Wistar rats induced by a 10-weeks high-fat high-fructose (HFF) diet. Juice consumption, either BC or CC, with a HFF diet resulted in lower serum triglycerides compared to only the HFF consumption. Both juices also mitigated the effects of HFF on the liver, pancreas, and adipose tissue, by preserving liver and pancreas histomorphology and reducing visceral fat and adipocyte size. Furthermore, supplementation with both juices reduced glucagon and up-regulated insulin expression in the pancreas of the rats on the HFF diet, whereas the BC also showed improved glucose regulation. BC juice also reduced the expression of IL-6 and hepatic inflammation compared to the group only on HFF diet. Both juices, especially BC, could be a convenient solution for the prevention of MetS in humans.
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Affiliation(s)
- Marija Paunovic
- Group for Nutritional Biochemistry and Dietology, Centre of Research Excellence in Nutrition and Metabolism, Institute for Medical Research, National Institute of Republic of Serbia, University of Belgrade, 11000, Belgrade, Serbia
| | - Maja Milosevic
- Group for Neuroendocrinology, Institute for Medical Research, National Institute of Republic of Serbia, University of Belgrade, 11000, Belgrade, Serbia
| | - Olivera Mitrovic-Ajtic
- Group for Molecular Oncology, Institute for Medical Research, National Institute of Republic of Serbia, University of Belgrade, 11000, Belgrade, Serbia
| | - Natasa Velickovic
- Department of Biochemistry, Institute for Biological Research “Siniša Stanković”, National Institute of the Republic of Serbia, University of Belgrade, 11060, Belgrade, Serbia
| | - Bojana Micic
- Department of Biochemistry, Institute for Biological Research “Siniša Stanković”, National Institute of the Republic of Serbia, University of Belgrade, 11060, Belgrade, Serbia
| | - Olgica Nedic
- Institute for the Application of Nuclear Energy (INEP), University of Belgrade, 11080, Belgrade, Serbia
| | - Vanja Todorovic
- Department of Bromatology, University of Belgrade - Faculty of Pharmacy, 11221, Belgrade, Serbia
| | - Vesna Vucic
- Group for Nutritional Biochemistry and Dietology, Centre of Research Excellence in Nutrition and Metabolism, Institute for Medical Research, National Institute of Republic of Serbia, University of Belgrade, 11000, Belgrade, Serbia
| | - Snjezana Petrovic
- Group for Nutritional Biochemistry and Dietology, Centre of Research Excellence in Nutrition and Metabolism, Institute for Medical Research, National Institute of Republic of Serbia, University of Belgrade, 11000, Belgrade, Serbia
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Djikic D, Markovic D, Bogdanovic A, Mitrovic-Ajtic O, Suboticki T, Diklic M, Beleslin-Cokic B, Bjelica S, Kovacic M, P Cokic V. Oxidative and nitrosative stress in myeloproliferative neoplasms: the impact on the AKT / mTOR signaling pathway. J BUON 2018; 23:1481-1491. [PMID: 30570876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
PURPOSE A common feature of malignancies is increased reactive oxygen species (ROS) and reactive nitrogen species (RNS). We analyzed the influence of oxidative and nitrosative stress on the activation of AKT/mTOR signaling pathway in myeloproliferative neoplasms (MPN). METHODS Oxidative stress-induced gene expression in circulatory CD34+ cells of MPN patients was studied by microarray analysis. Biomarkers of oxidative and nitrosative stress were determined using spectrophotometry in plasma and erythrocyte lysate. The levels of nitrotyrosine, inducible NO synthase (iNOS) and AKT/mTOR/p70S6K phosphorylation were determined by immunocytochemistry and immunoblotting in granulocytes of MPN patients. RESULTS Antioxidants superoxide dismutase 2 (SOD2) and glutathione peroxidase 1 (GPx1) gene expression were increased in circulatory CD34+ cells, while SOD1 and GPx enzymes were reduced in the erythrocytes of MPN. Plasma malonyl-dialdehyde and protein carbonyl levels were elevated in MPN. The total antioxidant capacity in plasma and erythrocyte catalase (CT) activities was the most prominent in primary myelofibrosis (PMF) with JAK2V617F heterozygosity. The total nitrite/nitrate (NOx) level was augmented in the plasma of PMF patients (p<0.001), while nitrotyrosine and iNOS were generally increased in the granulocytes of MPN patients. Activation of AKT/mTOR signaling was the most significant in PMF (p<0.01), but demonstrated JAK2V617F dependence and consequent p70S6K phosphorylation in the granulocytes of essential thrombocytemia (ET) and polycythemia vera (PV) patients. Hydrogen peroxide stimulated mTOR pathway, iNOS and nitrotyrosine quantities, the last one prevented by the antioxidant n-acetyl-cysteine (NAC) in the granulocytes of MPN. CONCLUSION Our study showed increased levels of oxidative and nitrosative stress parameters in MPN with JAK2V617F dependence. The ROS enhanced the constitutive activation of AKT/mTOR signaling and nitrosative parameters in MPN.
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Affiliation(s)
- Dragoslava Djikic
- Deparment of Molecular Biology, Institute for Medical Research, University of Belgrade, Belgrade, Serbia
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Rakocevic J, Orlic D, Mitrovic-Ajtic O, Tomasevic M, Dobric M, Zlatic N, Milasinovic D, Stankovic G, Ostojić M, Labudovic-Borovic M. Endothelial cell markers from clinician's perspective. Exp Mol Pathol 2017; 102:303-313. [PMID: 28192087 DOI: 10.1016/j.yexmp.2017.02.005] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2016] [Revised: 02/04/2017] [Accepted: 02/08/2017] [Indexed: 02/07/2023]
Abstract
Endothelial cell markers are membrane-bound or cytoplasmic molecules expressed by endothelial cells, which help their easier identification and discrimination from other cell types. During vasculogenesis, endothelial cells differentiate from hemangioblasts to form new blood vessels. With the discovery of endothelial progenitor cells (EPC) and their ability to form new blood vessels, the term vasculogenesis is not only reserved for the embryonic development. Possibility of de novo blood vessel formation from EPC is now widely explored in different ischemic conditions, especially in cardiovascular medicine. Numerous clinical trials have tested enhancing tissue vascularization by delivering hematopoietic cells that expressed endothelial markers. This therapeutic approach proved to be challenging and promising, particularly for patients who have exhausted all conventional therapeutic modalities. Angiogenesis, which refers to the formation of new blood vessels from existing vasculature, is indispensable process during tumor progression and metastasis. Blockage of tumor angiogenesis by targeting and inhibiting endothelial cell has emerged as novel safe and efficacious method to control many advanced malignant diseases. Numerous clinical studies are currently testing new antiangiogenic drugs which target and inhibit endothelial cell markers, receptors or molecules which transmit receptor-mediated signals, therefore inhibiting endothelial cell proliferation, migration and vascular tube formation. Many of these drugs are now widely used in clinical settings as first- or second-line chemotherapy in advanced malignant conditions. So far, these therapeutic approaches gave modest, yet encouraging clinical improvements, prolonging survival and improving functional capacity and quality of life for many terminally ill patients. Here we present the most commonly used endothelial cell markers along with their applicability in contemporary clinical practice.
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Affiliation(s)
- Jelena Rakocevic
- Institute of Histology and Embryology, School of Medicine, University of Belgrade, 26 Visegradska Street, Belgrade, Serbia
| | - Dejan Orlic
- Cardiology Clinic, Clinical Center of Serbia, 8 Dr Koste Todorovica Street, Belgrade, Serbia; School of Medicine, University of Belgrade, 8 Dr Subotica Street, Belgrade, Serbia
| | - Olivera Mitrovic-Ajtic
- Department for Neuroendocrinology, Institute for Medical Research, 4 Dr Subotica Street, Belgrade, Serbia
| | - Miloje Tomasevic
- Cardiology Clinic, Clinical Center of Serbia, 8 Dr Koste Todorovica Street, Belgrade, Serbia; Department of Internal medicine, Faculty of Medical Sciences, University of Kragujevac, 69 Svetozara Markovica Street, Kragujevac, Serbia
| | - Milan Dobric
- Cardiology Clinic, Clinical Center of Serbia, 8 Dr Koste Todorovica Street, Belgrade, Serbia; School of Medicine, University of Belgrade, 8 Dr Subotica Street, Belgrade, Serbia
| | - Natasa Zlatic
- School of Medicine, University of Belgrade, 8 Dr Subotica Street, Belgrade, Serbia
| | - Dejan Milasinovic
- Cardiology Clinic, Clinical Center of Serbia, 8 Dr Koste Todorovica Street, Belgrade, Serbia
| | - Goran Stankovic
- Cardiology Clinic, Clinical Center of Serbia, 8 Dr Koste Todorovica Street, Belgrade, Serbia; School of Medicine, University of Belgrade, 8 Dr Subotica Street, Belgrade, Serbia
| | - Miodrag Ostojić
- School of Medicine, University of Belgrade, 8 Dr Subotica Street, Belgrade, Serbia
| | - Milica Labudovic-Borovic
- Institute of Histology and Embryology, School of Medicine, University of Belgrade, 26 Visegradska Street, Belgrade, Serbia.
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Lekovic D, Gotic M, Skoda R, Beleslin-Cokic B, Milic N, Mitrovic-Ajtic O, Nienhold R, Sefer D, Suboticki T, Buac M, Markovic D, Diklic M, Cokic VP. Bone marrow microvessel density and plasma angiogenic factors in myeloproliferative neoplasms: clinicopathological and molecular correlations. Ann Hematol 2016; 96:393-404. [PMID: 27924369 DOI: 10.1007/s00277-016-2890-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Accepted: 11/27/2016] [Indexed: 01/02/2023]
Abstract
Increased angiogenesis in BCR-ABL1 negative myeloproliferative neoplasms (MPNs) has been recognized, but its connection with clinical and molecular markers needs to be defined. The aims of study were to (1) assess bone marrow (BM) angiogenesis measured by microvessel density (MVD) using CD34 and CD105 antibodies; (2) analyze correlation of MVD with plasma angiogenic factors including vascular endothelial growth factor, basic fibroblast growth factor, and interleukin-8; (3) examine the association of MVD with clinicopathological and molecular markers. We examined 90 de novo MPN patients (30 polycythemia vera (PV), primary myelofibrosis (PMF), essential thrombocythemia (ET)) and 10 age-matched controls. MVD was analyzed by immunohistochemistry "hot spot" method, angiogenic factors by immunoassay and JAK2V617F, and CALR mutations by DNA sequencing and allelic PCR. MVD was significantly increased in MPNs compared to controls (PMF > PV > ET). Correlation between MVD and plasma angiogenic factors was found in MPNs. MVD was significantly increased in patients with JAK2V617F mutation and correlated with JAK2 mutant allele burden (CD34-MVD: ρ = 0.491, p < 0.001; CD105-MVD: ρ = 0.276, p = 0.02) but not with CALR mutation. MVD correlated with leukocyte count, serum lactate dehydrogenase, hepatomegaly, and splenomegaly. BM fibrosis was significantly associated with CD34-MVD, CD105-MVD, interleukin-8, and JAK2 mutant allele burden. JAK2 homozygote status had positive predictive value (100%) for BM fibrosis. Patients with prefibrotic PMF had significantly higher MVD than patients with ET, and we could recommend MVD to be additional histopathological marker to distinguish these two entities. This study also highlights the strong correlation of MVD with plasma angiogenic factors, JAK2 mutant allele burden, and BM fibrosis in MPNs.
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Affiliation(s)
- Danijela Lekovic
- Clinic for Hematology, Clinical Center of Serbia, Koste Todorovica 2, Belgrade, 11000, Serbia. .,Medical Faculty, University of Belgrade, Belgrade, Serbia.
| | - Mirjana Gotic
- Clinic for Hematology, Clinical Center of Serbia, Koste Todorovica 2, Belgrade, 11000, Serbia.,Medical Faculty, University of Belgrade, Belgrade, Serbia
| | - Radek Skoda
- Department of Biomedicine, Experimental Hematology, University Hospital Basel and University of Basel, Basel, Switzerland
| | - Bojana Beleslin-Cokic
- Clinic for Endocrinology, Diabetes and Metabolic Diseases, Genetic laboratory, Clinical Center of Serbia, Belgrade, Serbia
| | - Natasa Milic
- Medical Faculty, University of Belgrade, Belgrade, Serbia.,Institute for Medical Statistics, University of Belgrade, Belgrade, Serbia
| | | | - Ronny Nienhold
- Department of Biomedicine, Experimental Hematology, University Hospital Basel and University of Basel, Basel, Switzerland
| | - Dijana Sefer
- Clinic for Hematology, Clinical Center of Serbia, Koste Todorovica 2, Belgrade, 11000, Serbia
| | - Tijana Suboticki
- Institute for Medical Research, University of Belgrade, Belgrade, Serbia
| | - Marijana Buac
- Institute for Medical Research, University of Belgrade, Belgrade, Serbia
| | - Dragana Markovic
- Institute for Medical Research, University of Belgrade, Belgrade, Serbia
| | - Milos Diklic
- Institute for Medical Research, University of Belgrade, Belgrade, Serbia
| | - Vladan P Cokic
- Institute for Medical Research, University of Belgrade, Belgrade, Serbia
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Lekovic D, Gotic M, Sefer D, Mitrovic-Ajtic O, Cokic V, Milic N. Predictors of survival and cause of death in patients with essential thrombocythemia. Eur J Haematol 2015; 95:461-6. [PMID: 25645731 DOI: 10.1111/ejh.12517] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/07/2014] [Indexed: 12/13/2022]
Abstract
OBJECTIVES Standard risk stratification for overall survival (OS) in patients with essential thrombocythemia (ET) is based on advanced age and history of thrombotic events. Recently, International Prognostic Score for ET (IPSET) incorporated also leukocytosis in prognostic model. The aim of this study was to establish additional risk factors for OS in ET patients. METHODS After the median follow-up of 7 yr, in 244 consecutive ET patients, 32 deaths were documented (13.2%). The 5- and 10-yr OS was 95.9% and 79.7%, respectively. Considered additional risk factors at diagnosis of ET were the presence of arterial hypertension, diabetes, hyperlipidemia, and smoking attitude. RESULTS The main cause of death in 75% of patients was cardiovascular (CV) comorbidity. Patients with CV risk factors had increased risk of death (HR = 2.33). Cox regression model identified age, leukocytosis, presence of CV risk factors, and previous thrombosis as unfavorable predictors of survival. Based on these parameters, four risk groups were defined, with significantly different survivals (P < 0.001). Improved prognostic model displayed a better hazard ratio profile compared to the standard risk stratification and IPSET. CONCLUSION The addition of CV risk factors allows better prognostic assessment by delineating the intermediate-risk category and improved identification of the high-risk patients.
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Affiliation(s)
- Danijela Lekovic
- Clinic for Hematology, Clinical Center of Serbia, Belgrade, Serbia
| | - Mirjana Gotic
- Clinic for Hematology, Clinical Center of Serbia, Belgrade, Serbia.,Medical Faculty, University of Belgrade, Belgrade, Serbia
| | - Dijana Sefer
- Clinic for Hematology, Clinical Center of Serbia, Belgrade, Serbia
| | | | - Vladan Cokic
- Institute for Medical Research, University of Belgrade, Belgrade, Serbia
| | - Natasa Milic
- Medical Faculty, University of Belgrade, Belgrade, Serbia.,Institute for Medical Statistics, University of Belgrade, Belgrade, Serbia
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