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Ivan A, Cristea MI, Telea A, Oprean C, Galuscan A, Tatu CA, Paunescu V. Stem Cells Derived from Human Exfoliated Deciduous Teeth Functional Assessment: Exploring the Changes of Free Fatty Acids Composition during Cultivation. Int J Mol Sci 2023; 24:17249. [PMID: 38139076 PMCID: PMC10743411 DOI: 10.3390/ijms242417249] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 12/05/2023] [Accepted: 12/07/2023] [Indexed: 12/24/2023] Open
Abstract
The metabolic regulation of stemness is widely recognized as a crucial factor in determining the fate of stem cells. When transferred to a stimulating and nutrient-rich environment, mesenchymal stem cells (MSCs) undergo rapid proliferation, accompanied by a change in protein expression and a significant reconfiguration of central energy metabolism. This metabolic shift, from quiescence to metabolically active cells, can lead to an increase in the proportion of senescent cells and limit their regenerative potential. In this study, MSCs from human exfoliated deciduous teeth (SHEDs) were isolated and expanded in vitro for up to 10 passages. Immunophenotypic analysis, growth kinetics, in vitro plasticity, fatty acid content, and autophagic capacity were assessed throughout cultivation to evaluate the functional characteristics of SHEDs. Our findings revealed that SHEDs exhibit distinctive patterns of cell surface marker expression, possess high self-renewal capacity, and have a unique potential for neurogenic differentiation. Aged SHEDs exhibited lower proliferation rates, reduced potential for chondrogenic and osteogenic differentiation, an increasing capacity for adipogenic differentiation, and decreased autophagic potential. Prolonged cultivation of SHEDs resulted in changes in fatty acid composition, signaling a transition from anti-inflammatory to proinflammatory pathways. This underscores the intricate connection between metabolic regulation, stemness, and aging, crucial for optimizing therapeutic applications.
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Affiliation(s)
- Alexandra Ivan
- Department of Immunology and Allergology, Biology, “Victor Babes” University of Medicine and Pharmacy, 300041 Timisoara, Romania; (C.A.T.); (V.P.)
- Center for Gene and Cellular Therapies in the Treatment of Cancer—Oncogen Center, Clinical County Hospital “Pius Brînzeu”, 300723 Timisoara, Romania; (M.I.C.); (A.T.); (C.O.)
| | - Mirabela I. Cristea
- Center for Gene and Cellular Therapies in the Treatment of Cancer—Oncogen Center, Clinical County Hospital “Pius Brînzeu”, 300723 Timisoara, Romania; (M.I.C.); (A.T.); (C.O.)
| | - Ada Telea
- Center for Gene and Cellular Therapies in the Treatment of Cancer—Oncogen Center, Clinical County Hospital “Pius Brînzeu”, 300723 Timisoara, Romania; (M.I.C.); (A.T.); (C.O.)
| | - Camelia Oprean
- Center for Gene and Cellular Therapies in the Treatment of Cancer—Oncogen Center, Clinical County Hospital “Pius Brînzeu”, 300723 Timisoara, Romania; (M.I.C.); (A.T.); (C.O.)
- Department of Drug analysis, Chemistry of the Environment and Food, “Victor Babes” University of Medicine and Pharmacy, 300041 Timisoara, Romania
| | - Atena Galuscan
- Translational and Experimental Clinical Research Centre in Oral Health, Department of Preventive, Community Dentistry and Oral Health, “Victor Babes” University of Medicine and Pharmacy, 300041 Timisoara, Romania
| | - Calin A. Tatu
- Department of Immunology and Allergology, Biology, “Victor Babes” University of Medicine and Pharmacy, 300041 Timisoara, Romania; (C.A.T.); (V.P.)
- Center for Gene and Cellular Therapies in the Treatment of Cancer—Oncogen Center, Clinical County Hospital “Pius Brînzeu”, 300723 Timisoara, Romania; (M.I.C.); (A.T.); (C.O.)
| | - Virgil Paunescu
- Department of Immunology and Allergology, Biology, “Victor Babes” University of Medicine and Pharmacy, 300041 Timisoara, Romania; (C.A.T.); (V.P.)
- Center for Gene and Cellular Therapies in the Treatment of Cancer—Oncogen Center, Clinical County Hospital “Pius Brînzeu”, 300723 Timisoara, Romania; (M.I.C.); (A.T.); (C.O.)
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Habago SD, Ordodi V, Bojin F, Vesa SC, Moldovan V, Paunescu V, Ionescu D. Inhibitory effects of lidocaine on colon carcinoma progression in a rat model: a pilot study. Br J Anaesth 2023; 131:e163-e165. [PMID: 37709556 DOI: 10.1016/j.bja.2023.07.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Accepted: 07/27/2023] [Indexed: 09/16/2023] Open
Affiliation(s)
- Sergiu D Habago
- Department of Anaesthesia and Intensive Care, University of Medicine and Pharmacy "Iuliu Hatieganu", Cluj-Napoca, Romania; EuroPeriscope, The ESA-IC Onco-Anaesthesiology Research Group, Brussels, Belgium; Association for Research in Anesthesia and Intensive Care - ACATI, Cluj-Napoca, Romania.
| | - Valentin Ordodi
- CAICON Department, The Polytechnic University of Timisoara, Timisoara, Romania; OncoGen Research Centre, Timisoara, Romania
| | | | - Stefan C Vesa
- Department of Pharmacology, Toxicology and Clinical Pharmacology, University of Medicine and Pharmacy "Iuliu Hatieganu", Cluj-Napoca, Romania
| | | | | | - Daniela Ionescu
- Department of Anaesthesia and Intensive Care, University of Medicine and Pharmacy "Iuliu Hatieganu", Cluj-Napoca, Romania; EuroPeriscope, The ESA-IC Onco-Anaesthesiology Research Group, Brussels, Belgium; Association for Research in Anesthesia and Intensive Care - ACATI, Cluj-Napoca, Romania; Outcome Research Consortium, Cleveland, OH, USA
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Harich OO, Gavriliuc OI, Ordodi VL, Tirziu A, Paunescu V, Panaitescu C, Bojin MF. In Vitro Study of the Multimodal Effect of Na +/K + ATPase Blocker Ouabain on the Tumor Microenvironment and Malignant Cells. Biomedicines 2023; 11:2205. [PMID: 37626702 PMCID: PMC10452365 DOI: 10.3390/biomedicines11082205] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 07/31/2023] [Accepted: 08/03/2023] [Indexed: 08/27/2023] Open
Abstract
Na+/K+ ATPase is a protein involved in the active transport of ions across the cellular membrane. Ouabain is a cardiotonic glycoside that, by inhibiting the Na+/K+ pump, interferes with cell processes mediated directly by the pump, but also indirectly influences other cellular processes such as cell cycle and proliferation, growth, cell differentiation, angiogenesis, migration, adhesion, and invasion. We used the SK-BR-3 breast cancer cell line, mesenchymal stem cells (MSCs), and tumor-associated fibroblasts (TAFs) in vitro to determine the effects of ouabain exposure on these cellular types. The results showed a multi-level effect of ouabain mainly on tumor cells, in a dose-dependent manner, while the TAFs and their normal counterparts were not significantly influenced. Following exposure to ouabain, the SK-BR-3 cells changed their morphologic appearance, decreased the expression of immunophenotypic markers (CD29, Her2, VEGF), the proliferation rate was significantly decreased (Ki67 index), the cells were blocked in the G0 phase of the cell cycle and suffered necrosis. These data were correlated with the variable expression of α and β Na+/K+ pump subunits in tumor cells, resulting in decreased ability to adhere to the VCAM-1 substrate in functional flow chamber studies. Being indicative of the pro-apoptotic and inhibitory effect of ouabain on tumor invasion and metastasis, the results support the addition of ouabain to the oncological therapeutic arsenal, trailing the "repurposing drugs" approach.
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Affiliation(s)
- Octavia-Oana Harich
- Department of Functional Sciences, Immuno-Physiology and Biotechnologies Center, “Victor Babes” University of Medicine and Pharmacy, No. 2 Eftimie Murgu Square, 300041 Timisoara, Romania; (O.-O.H.); (V.-L.O.); (A.T.); (V.P.); (C.P.); (M.-F.B.)
| | - Oana-Isabella Gavriliuc
- Department of Functional Sciences, Immuno-Physiology and Biotechnologies Center, “Victor Babes” University of Medicine and Pharmacy, No. 2 Eftimie Murgu Square, 300041 Timisoara, Romania; (O.-O.H.); (V.-L.O.); (A.T.); (V.P.); (C.P.); (M.-F.B.)
| | - Valentin-Laurentiu Ordodi
- Department of Functional Sciences, Immuno-Physiology and Biotechnologies Center, “Victor Babes” University of Medicine and Pharmacy, No. 2 Eftimie Murgu Square, 300041 Timisoara, Romania; (O.-O.H.); (V.-L.O.); (A.T.); (V.P.); (C.P.); (M.-F.B.)
- Faculty of Industrial Chemistry and Environmental Engineering, “Politehnica” University Timisoara, No 2 Victoriei Square, 300006 Timisoara, Romania
| | - Alexandru Tirziu
- Department of Functional Sciences, Immuno-Physiology and Biotechnologies Center, “Victor Babes” University of Medicine and Pharmacy, No. 2 Eftimie Murgu Square, 300041 Timisoara, Romania; (O.-O.H.); (V.-L.O.); (A.T.); (V.P.); (C.P.); (M.-F.B.)
| | - Virgil Paunescu
- Department of Functional Sciences, Immuno-Physiology and Biotechnologies Center, “Victor Babes” University of Medicine and Pharmacy, No. 2 Eftimie Murgu Square, 300041 Timisoara, Romania; (O.-O.H.); (V.-L.O.); (A.T.); (V.P.); (C.P.); (M.-F.B.)
- Center for Gene and Cellular Therapies in the Treatment of Cancer Timisoara-OncoGen, Clinical Emergency County Hospital “Pius Brinzeu” Timisoara, No. 156 Liviu Rebreanu, 300723 Timisoara, Romania
| | - Carmen Panaitescu
- Department of Functional Sciences, Immuno-Physiology and Biotechnologies Center, “Victor Babes” University of Medicine and Pharmacy, No. 2 Eftimie Murgu Square, 300041 Timisoara, Romania; (O.-O.H.); (V.-L.O.); (A.T.); (V.P.); (C.P.); (M.-F.B.)
- Center for Gene and Cellular Therapies in the Treatment of Cancer Timisoara-OncoGen, Clinical Emergency County Hospital “Pius Brinzeu” Timisoara, No. 156 Liviu Rebreanu, 300723 Timisoara, Romania
| | - Maria-Florina Bojin
- Department of Functional Sciences, Immuno-Physiology and Biotechnologies Center, “Victor Babes” University of Medicine and Pharmacy, No. 2 Eftimie Murgu Square, 300041 Timisoara, Romania; (O.-O.H.); (V.-L.O.); (A.T.); (V.P.); (C.P.); (M.-F.B.)
- Center for Gene and Cellular Therapies in the Treatment of Cancer Timisoara-OncoGen, Clinical Emergency County Hospital “Pius Brinzeu” Timisoara, No. 156 Liviu Rebreanu, 300723 Timisoara, Romania
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Barbulescu GI, Bojin FM, Ordodi VL, Goje ID, Barbulescu AS, Paunescu V. Decellularized Extracellular Matrix Scaffolds for Cardiovascular Tissue Engineering: Current Techniques and Challenges. Int J Mol Sci 2022; 23:13040. [PMID: 36361824 PMCID: PMC9658138 DOI: 10.3390/ijms232113040] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2022] [Revised: 10/18/2022] [Accepted: 10/26/2022] [Indexed: 08/13/2023] Open
Abstract
Cardiovascular diseases are the leading cause of global mortality. Over the past two decades, researchers have tried to provide novel solutions for end-stage heart failure to address cardiac transplantation hurdles such as donor organ shortage, chronic rejection, and life-long immunosuppression. Cardiac decellularized extracellular matrix (dECM) has been widely explored as a promising approach in tissue-regenerative medicine because of its remarkable similarity to the original tissue. Optimized decellularization protocols combining physical, chemical, and enzymatic agents have been developed to obtain the perfect balance between cell removal, ECM composition, and function maintenance. However, proper assessment of decellularized tissue composition is still needed before clinical translation. Recellularizing the acellular scaffold with organ-specific cells and evaluating the extent of cardiomyocyte repopulation is also challenging. This review aims to discuss the existing literature on decellularized cardiac scaffolds, especially on the advantages and methods of preparation, pointing out areas for improvement. Finally, an overview of the state of research regarding the application of cardiac dECM and future challenges in bioengineering a human heart suitable for transplantation is provided.
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Affiliation(s)
- Greta Ionela Barbulescu
- Immuno-Physiology and Biotechnologies Center (CIFBIOTEH), Department of Functional Sciences, “Victor Babes” University of Medicine and Pharmacy, No 2 Eftimie Murgu Square, 300041 Timisoara, Romania
- Department of Clinical Practical Skills, “Victor Babes” University of Medicine and Pharmacy, No 2 Eftimie Murgu Square, 300041 Timisoara, Romania
| | - Florina Maria Bojin
- Immuno-Physiology and Biotechnologies Center (CIFBIOTEH), Department of Functional Sciences, “Victor Babes” University of Medicine and Pharmacy, No 2 Eftimie Murgu Square, 300041 Timisoara, Romania
- Clinical Emergency County Hospital “Pius Brinzeu” Timisoara, Center for Gene and Cellular Therapies in the Treatment of Cancer Timisoara-OncoGen, No 156 Liviu Rebreanu, 300723 Timisoara, Romania
| | - Valentin Laurentiu Ordodi
- Clinical Emergency County Hospital “Pius Brinzeu” Timisoara, Center for Gene and Cellular Therapies in the Treatment of Cancer Timisoara-OncoGen, No 156 Liviu Rebreanu, 300723 Timisoara, Romania
- Faculty of Industrial Chemistry and Environmental Engineering, “Politehnica” University Timisoara, No 2 Victoriei Square, 300006 Timisoara, Romania
| | - Iacob Daniel Goje
- Department of Medical Semiology I, “Victor Babes” University of Medicine and Pharmacy, No 2 Eftimie Murgu Square, 300041 Timisoara, Romania
- Advanced Cardiology and Hemostaseology Research Center, “Victor Babes” University of Medicine and Pharmacy, No 2 Eftimie Murgu Square, 300041 Timisoara, Romania
| | - Andreea Severina Barbulescu
- Center for Advanced Research in Gastroenterology and Hepatology, Department of Internal Medicine II, Division of Gastroenterology and Hepatology, “Victor Babes” University of Medicine and Pharmacy, 300041 Timisoara, Romania
| | - Virgil Paunescu
- Immuno-Physiology and Biotechnologies Center (CIFBIOTEH), Department of Functional Sciences, “Victor Babes” University of Medicine and Pharmacy, No 2 Eftimie Murgu Square, 300041 Timisoara, Romania
- Clinical Emergency County Hospital “Pius Brinzeu” Timisoara, Center for Gene and Cellular Therapies in the Treatment of Cancer Timisoara-OncoGen, No 156 Liviu Rebreanu, 300723 Timisoara, Romania
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Barbulescu GI, Buica TP, Goje ID, Bojin FM, Ordodi VL, Olteanu GE, Heredea RE, Paunescu V. Optimization of Complete Rat Heart Decellularization Using Artificial Neural Networks. Micromachines (Basel) 2022; 13:mi13010079. [PMID: 35056244 PMCID: PMC8778756 DOI: 10.3390/mi13010079] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 12/30/2021] [Accepted: 12/31/2021] [Indexed: 02/01/2023]
Abstract
Whole organ decellularization techniques have facilitated the fabrication of extracellular matrices (ECMs) for engineering new organs. Unfortunately, there is no objective gold standard evaluation of the scaffold without applying a destructive method such as histological analysis or DNA removal quantification of the dry tissue. Our proposal is a software application using deep convolutional neural networks (DCNN) to distinguish between different stages of decellularization, determining the exact moment of completion. Hearts from male Sprague Dawley rats (n = 10) were decellularized using 1% sodium dodecyl sulfate (SDS) in a modified Langendorff device in the presence of an alternating rectangular electric field. Spectrophotometric measurements of deoxyribonucleic acid (DNA) and total proteins concentration from the decellularization solution were taken every 30 min. A monitoring system supervised the sessions, collecting a large number of photos saved in corresponding folders. This system aimed to prove a strong correlation between the data gathered by spectrophotometry and the state of the heart that could be visualized with an OpenCV-based spectrometer. A decellularization completion metric was built using a DCNN based classifier model trained using an image set comprising thousands of photos. Optimizing the decellularization process using a machine learning approach launches exponential progress in tissue bioengineering research.
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Affiliation(s)
- Greta Ionela Barbulescu
- Immuno-Physiology and Biotechnologies Center (CIFBIOTEH), Department of Functional Sciences, “Victor Babes” University of Medicine and Pharmacy, No. 2 Eftimie Murgu Square, 300041 Timisoara, Romania; (F.M.B.); (V.P.)
- Department of Clinical Practical Skills, “Victor Babes” University of Medicine and Pharmacy, No. 2 Eftimie Murgu Square, 300041 Timisoara, Romania;
- Center for Gene and Cellular Therapies in the Treatment of Cancer Timisoara-OncoGen, Clinical Emergency County Hospital “Pius Brinzeu” Timisoara, No. 156 Liviu Rebreanu, 300723 Timisoara, Romania; (T.P.B.); (V.L.O.)
- Correspondence: (G.I.B.); (I.D.G.); Tel.: +40-733177583 (G.-I.B.)
| | - Taddeus Paul Buica
- Center for Gene and Cellular Therapies in the Treatment of Cancer Timisoara-OncoGen, Clinical Emergency County Hospital “Pius Brinzeu” Timisoara, No. 156 Liviu Rebreanu, 300723 Timisoara, Romania; (T.P.B.); (V.L.O.)
| | - Iacob Daniel Goje
- Department of Medical Semiology I, “Victor Babes” University of Medicine and Pharmacy, No. 2 Eftimie Murgu Square, 300041 Timisoara, Romania
- Advanced Cardiology and Hemostaseology Research Center, “Victor Babes” University of Medicine and Pharmacy, No. 2 Eftimie Murgu Square, 300041 Timisoara, Romania
- Correspondence: (G.I.B.); (I.D.G.); Tel.: +40-733177583 (G.-I.B.)
| | - Florina Maria Bojin
- Immuno-Physiology and Biotechnologies Center (CIFBIOTEH), Department of Functional Sciences, “Victor Babes” University of Medicine and Pharmacy, No. 2 Eftimie Murgu Square, 300041 Timisoara, Romania; (F.M.B.); (V.P.)
- Center for Gene and Cellular Therapies in the Treatment of Cancer Timisoara-OncoGen, Clinical Emergency County Hospital “Pius Brinzeu” Timisoara, No. 156 Liviu Rebreanu, 300723 Timisoara, Romania; (T.P.B.); (V.L.O.)
| | - Valentin Laurentiu Ordodi
- Center for Gene and Cellular Therapies in the Treatment of Cancer Timisoara-OncoGen, Clinical Emergency County Hospital “Pius Brinzeu” Timisoara, No. 156 Liviu Rebreanu, 300723 Timisoara, Romania; (T.P.B.); (V.L.O.)
- Department of Applied Chemistry, Organic and Natural Compounds Engineering, Faculty of Industrial Chemistry and Environmental Engineering, “Politehnica” University Timisoara, No. 2 Victoriei Square, 300006 Timisoara, Romania
| | - Gheorghe Emilian Olteanu
- Department of Pathology, “Dr Victor Babes” Clinical Hospital of Infectious Disease and Pneumophysiology, 300041 Timisoara, Romania;
| | - Rodica Elena Heredea
- Department of Clinical Practical Skills, “Victor Babes” University of Medicine and Pharmacy, No. 2 Eftimie Murgu Square, 300041 Timisoara, Romania;
- Advanced Cardiology and Hemostaseology Research Center, “Victor Babes” University of Medicine and Pharmacy, No. 2 Eftimie Murgu Square, 300041 Timisoara, Romania
- Department of Pathology, “Louis Turcanu” Children’s Clinical Emergency Hospital, 300041 Timisoara, Romania
| | - Virgil Paunescu
- Immuno-Physiology and Biotechnologies Center (CIFBIOTEH), Department of Functional Sciences, “Victor Babes” University of Medicine and Pharmacy, No. 2 Eftimie Murgu Square, 300041 Timisoara, Romania; (F.M.B.); (V.P.)
- Center for Gene and Cellular Therapies in the Treatment of Cancer Timisoara-OncoGen, Clinical Emergency County Hospital “Pius Brinzeu” Timisoara, No. 156 Liviu Rebreanu, 300723 Timisoara, Romania; (T.P.B.); (V.L.O.)
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Danciu C, Cioanca O, Watz Farcaș C, Hancianu M, Racoviceanu R, Muntean D, Zupko I, Oprean C, Tatu C, Paunescu V, Proks M, Diaconeasa Z, Soica C, Pinzaru I, Dehelean C. Botanical Therapeutics (Part II): Antimicrobial and In Vitro Anticancer Activity against MCF7 Human Breast Cancer Cells of Chamomile, Parsley and Celery Alcoholic Extracts. Anticancer Agents Med Chem 2021; 21:187-200. [PMID: 33109067 DOI: 10.2174/1871520620666200807213734] [Citation(s) in RCA: 2] [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] [Received: 10/18/2019] [Revised: 04/21/2020] [Accepted: 06/15/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND This study was designed as a continuation of a complex investigation about the phytochemical composition and biological activity of chamomile, parsley, and celery extracts against A375 human melanoma and dendritic cells. OBJECTIVE The main aim was the evaluation of the antimicrobial potential of selected extracts as well as the in vitro anticancer activity against MCF7 human breast cancer cells. METHODS In order to complete the picture regarding the phytochemical composition, molecular fingerprint was sketched out by the help of FTIR spectroscopy. The activity of two enzymes (acetylcholinesterase and butyrylcholinesterase) after incubation with the three extracts was spectrophotometrically assessed. The antimicrobial potential was evaluated by disk diffusion method. The in vitro anticancer potential against MCF7 human breast cancer cells was appraised by MTT, LDH, wound healing, cell cycle, DAPI, Annexin-V-PI assays. RESULTS The results showed variations between the investigated extracts in terms of inhibitory activity against enzymes, such as acetyl- and butyrilcholinesterase. Chamomile and parsley extracts were active only against tested Gram-positive cocci, while all tested extracts displayed antifungal effects. Among the screened samples at the highest tested concentration, namely 60μg/mL, parsley was the most active extract in terms of reducing the viability of MCF7 - human breast adenocarcinoma cell line and inducing the release of lactate dehydrogenase. On the other hand, chamomile and celery extracts manifested potent anti-migratory effects. Furthermore, celery extract was the most active in terms of total apoptotic events, while chamomile extract induced the highest necrosis rate. CONCLUSION The screened samples containing phytochemicals belonging in majority to the class of flavonoids and polyphenols can represent candidates for antimicrobial and anticancer agents.
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Affiliation(s)
- Corina Danciu
- Faculty of Pharmacy, "Victor Babes," University of Medicine and Pharmacy, 300041 Timisoara, Romania
| | - Oana Cioanca
- Faculty of Pharmacy, University of Medicine and Pharmacy "Grigore T.Popa" Iasi, 700115, Iasi, Romania
| | - Claudia Watz Farcaș
- Faculty of Pharmacy, "Victor Babes," University of Medicine and Pharmacy, 300041 Timisoara, Romania
| | - Monica Hancianu
- Faculty of Pharmacy, University of Medicine and Pharmacy "Grigore T.Popa" Iasi, 700115, Iasi, Romania
| | - Roxana Racoviceanu
- Faculty of Pharmacy, "Victor Babes," University of Medicine and Pharmacy, 300041 Timisoara, Romania
| | - Delia Muntean
- Faculty of Medicine, "Victor Babes," University of Medicine and Pharmacy, 300041 Timisoara, Romania
| | - Istvan Zupko
- Faculty of Pharmacy, University of Szeged, H-6720, Szeged, Hungary
| | - Camelia Oprean
- Faculty of Pharmacy, "Victor Babes," University of Medicine and Pharmacy, 300041 Timisoara, Romania
| | - Calin Tatu
- OncoGen Centre, County Hospital "Pius Branzeu", 300736, Timisoara, Romania
| | - Virgil Paunescu
- Faculty of Pharmacy, "Victor Babes," University of Medicine and Pharmacy, 300041 Timisoara, Romania
| | - Maria Proks
- Faculty of Pharmacy, "Victor Babes," University of Medicine and Pharmacy, 300041 Timisoara, Romania
| | - Zorita Diaconeasa
- Faculty of Food Science and Technology, University of Agricultural Science and Veterinary Medicine ClujNapoca, 400372, Cluj-Napoca, Romania
| | - Codruta Soica
- Faculty of Pharmacy, "Victor Babes," University of Medicine and Pharmacy, 300041 Timisoara, Romania
| | - Iulia Pinzaru
- Faculty of Pharmacy, "Victor Babes," University of Medicine and Pharmacy, 300041 Timisoara, Romania
| | - Cristina Dehelean
- Faculty of Pharmacy, "Victor Babes," University of Medicine and Pharmacy, 300041 Timisoara, Romania
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Olteanu GE, Mihai IM, Bojin F, Gavriliuc O, Paunescu V. The natural adaptive evolution of cancer: The metastatic ability of cancer cells. Bosn J Basic Med Sci 2020; 20:303-309. [PMID: 32020846 PMCID: PMC7416172 DOI: 10.17305/bjbms.2019.4565] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Accepted: 01/19/2020] [Indexed: 02/07/2023] Open
Abstract
The ability of cancer to adapt renders it one of the most challenging pathologies of all time. It is the most dreaded pathological entity because of its capacity to metastasize to distant sites in the body, and 90% of all cancer-related deaths recorded to date are attributed to metastasis. Currently, three main theories have been proposed to explain the metastatic pathway of cancer: the epithelial–mesenchymal transition (EMT) and mesenchymal–epithelial transition (MET) hypothesis (1), the cancer stem cell hypothesis (2), and the macrophage–cancer cell fusion hybrid hypothesis (3). We propose a new hypothesis, i.e., under the effect of particular biochemical and/or physical stressors, cancer cells can undergo nuclear expulsion with subsequent macrophage engulfment and fusion, with the formation of cancer fusion cells (CFCs). The existence of CFCs, if confirmed, would represent a novel metastatic pathway and a shift in the extant dogma of cancer; consequently, new treatment targets would be available for this adaptive pathology.
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Affiliation(s)
- Gheorghe-Emilian Olteanu
- Department of Microscopic Morphology, "Victor Babes" University of Medicine and Pharmacy Timisoara, Timisoara, Romania; Clinical Emergency County Hospital "Pius Brinzeu" Timisoara, Center for Gene and Cellular Therapies in the Treatment of Cancer Timisoara - OncoGen, Timisoara, Romania
| | - Ioana-Maria Mihai
- Department of Microscopic Morphology, "Victor Babes" University of Medicine and Pharmacy Timisoara, Timisoara, Romania
| | - Florina Bojin
- Clinical Emergency County Hospital "Pius Brinzeu" Timisoara, Center for Gene and Cellular Therapies in the Treatment of Cancer Timisoara - OncoGen, Timisoara, Romania; Department of Functional Sciences, "Victor Babes" University of Medicine and Pharmacy Timisoara, Timisoara, Romania
| | - Oana Gavriliuc
- Clinical Emergency County Hospital "Pius Brinzeu" Timisoara, Center for Gene and Cellular Therapies in the Treatment of Cancer Timisoara - OncoGen, Timisoara, Romania; Department of Functional Sciences, "Victor Babes" University of Medicine and Pharmacy Timisoara, Timisoara, Romania
| | - Virgil Paunescu
- Clinical Emergency County Hospital "Pius Brinzeu" Timisoara, Center for Gene and Cellular Therapies in the Treatment of Cancer Timisoara - OncoGen, Timisoara, Romania; Department of Functional Sciences, "Victor Babes" University of Medicine and Pharmacy Timisoara, Timisoara, Romania
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Petrescu AM, Putz MV, Ifrim FC, Ilia G, Paunescu V. Ld/Mm+ Simulation of Some Aristolochic and Humic Acids Species Coupled in Periodic Box with Water. Curr Comput Aided Drug Des 2020; 17:708-724. [PMID: 32586258 DOI: 10.2174/1573409916666200625141309] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 04/27/2020] [Accepted: 05/02/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND This study is one of the dynamics molecular docking that presents the interactions between a molecular model of the mixture of humic acid structure and 18 aristolochic acids structures, from PubChem database in a water box that simulates the environment reactions. OBJECTIVE The major objective was to identify what happens in this procedure(LD/MM+) with the coupled species. METHOD LD/MM+ SIMULATION ( Langevin dynamics simulation). RESULTS The R-Squared statistic indicates that the model as fitted by MLR , explains 90.9437% of the variability in Volume. CONCLUSION The interactions of these acids, the types of forces, and the way that these molecules can get closer to each other, in terms of total energy density, while identifying the specificities vis-à-vis of wateraromaticity or water-reactivity behaviors.
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Affiliation(s)
- Alina-Maria Petrescu
- OncoGen Centre, County Hospital "Pius Branzeu", Blvd. Liviu Rebreanu 156, RO-300736, Timisoara, Romania
| | - Mihai Viorel Putz
- Laboratory of Structural and Computational Physical-Chemistry for Nanosciences and QSAR, West University of Timisoara, Faculty of Chemistry, Biology, Geography, 16A Pestalozzi Street, 300115 Timisoara, Romania and Laboratory of Renewable Energies – Photovoltaics, National Institute of Research and Development for Electrochemistry and Condensed Matter, Street Professor Dr. Aurel Păunescu Podeanu, number 144, 300569, Timisoara, Romania
| | - Feng Chen Ifrim
- Department of Immunology, University of Medicine and Pharmacy "Victor Babes", Eftimie Murgu Sq. 2, Timisoara, 300041, Romania,Department of Marketing, medical technology, Carol Davila University of Medicine and Pharmacy , 020021,
Bucharest, Romania
| | - Gheorghe Ilia
- Institute of Chemistry” Coriolan Dragulescu”, 24 Mihai Viteazu Bvd. 300223, Timisoara, Romania
| | - Virgil Paunescu
- Department of Biology and Environmental Health, University of Medicine and Pharmacy "Victor Babes", Eftimie Murgu Sq. 2,Timisoara, 300041, Romania
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9
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Kis B, Ifrim FC, Buda V, Avram S, Pavel IZ, Antal D, Paunescu V, Dehelean CA, Ardelean F, Diaconeasa Z, Soica C, Danciu C. Cannabidiol-from Plant to Human Body: A Promising Bioactive Molecule with Multi-Target Effects in Cancer. Int J Mol Sci 2019; 20:E5905. [PMID: 31775230 PMCID: PMC6928757 DOI: 10.3390/ijms20235905] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 11/21/2019] [Accepted: 11/22/2019] [Indexed: 01/01/2023] Open
Abstract
Cannabis sativa L. is a plant long used for its textile fibers, seed oil, and oleoresin with medicinal and psychoactive properties. It is the main source of phytocannabinoids, with over 100 compounds detected so far. In recent years, a lot of attention has been given to the main phytochemicals present in Cannabis sativa L., namely, cannabidiol (CBD) and Δ9-tetrahydrocannabinol (THC). Compared to THC, CBD has non-psychoactive effects, an advantage for clinical applications of anti-tumor benefits. The review is designed to provide an update regarding the multi-target effects of CBD in different types of cancer. The main focus is on the latest in vitro and in vivo studies that present data regarding the anti-proliferative, pro-apoptotic, cytotoxic, anti-invasive, anti-antiangiogenic, anti-inflammatory, and immunomodulatory properties of CBD together with their mechanisms of action. The latest clinical evidence of the anticancer effects of CBD is also outlined. Moreover, the main aspects of the pharmacological and toxicological profiles are given.
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Affiliation(s)
- Brigitta Kis
- Department of Pharmacognosy, University of Medicine and Pharmacy “Victor Babeş“, Eftimie Murgu Square, No. 2, 300041 Timişoara, Romania; (B.K.); (S.A.); (I.Z.P.); (C.D.)
- Centre for Gene and Cellular Therapies in the Treatment of Cancer- OncoGen, Clinical County Hospital of Timişoara, Liviu Rebreanu Blvd. 156, 300736 Timişoara, Romania;
| | - Feng Chen Ifrim
- Department of Marketing, medical technology, Carol Davila University of Medicine and Pharmacy, 020021 Bucharest, Romania
| | - Valentina Buda
- Department of Pharmacology and Clinical Pharmacy, “Victor Babes” University of Medicine and Pharmacy, Eftimie Murgu Square, No. 2, 300041 Timisoara, Romania
| | - Stefana Avram
- Department of Pharmacognosy, University of Medicine and Pharmacy “Victor Babeş“, Eftimie Murgu Square, No. 2, 300041 Timişoara, Romania; (B.K.); (S.A.); (I.Z.P.); (C.D.)
| | - Ioana Zinuca Pavel
- Department of Pharmacognosy, University of Medicine and Pharmacy “Victor Babeş“, Eftimie Murgu Square, No. 2, 300041 Timişoara, Romania; (B.K.); (S.A.); (I.Z.P.); (C.D.)
| | - Diana Antal
- Department of Pharmaceutical Botany, University of Medicine and Pharmacy “Victor Babeş“, Eftimie Murgu Square, No. 2, 300041 Timişoara, Romania; (D.A.); (F.A.)
| | - Virgil Paunescu
- Centre for Gene and Cellular Therapies in the Treatment of Cancer- OncoGen, Clinical County Hospital of Timişoara, Liviu Rebreanu Blvd. 156, 300736 Timişoara, Romania;
- Department of Functional Sciences, Faculty of Medicine, “Victor Babes” University of Medicine and Pharmacy, Eftimie Murgu Square, No. 2, 300041 Timisoara, Romania
| | - Cristina Adriana Dehelean
- Department of Toxicology, “Victor Babeş“University of Medicine and Pharmacy, Eftimie Murgu Square, No. 2, 300041 Timişoara, Romania;
| | - Florina Ardelean
- Department of Pharmaceutical Botany, University of Medicine and Pharmacy “Victor Babeş“, Eftimie Murgu Square, No. 2, 300041 Timişoara, Romania; (D.A.); (F.A.)
| | - Zorita Diaconeasa
- Department of Food Science and Technology, Faculty of Food Science and Technology, University of Agricultural Science and Veterinary Medicine, Calea Manastur, 3-5, 400372 Cluj-Napoca, Romania;
| | - Codruta Soica
- Department of Pharmaceutical Chemistry, University of Medicine and Pharmacy “Victor Babeş“, Eftimie Murgu Square, No. 2, 300041 Timişoara, Romania;
| | - Corina Danciu
- Department of Pharmacognosy, University of Medicine and Pharmacy “Victor Babeş“, Eftimie Murgu Square, No. 2, 300041 Timişoara, Romania; (B.K.); (S.A.); (I.Z.P.); (C.D.)
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Petrescu AM, Lukinich‐Gruia AT, Paunescu V, Ilia G. A Theoretical Study of the Molecular Coupled Structures of Aristolochic Acids and Humic Acid, Potential Environmental Contaminants. Chem Biodivers 2019; 16:e1900406. [PMID: 31568671 DOI: 10.1002/cbdv.201900406] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Accepted: 09/10/2019] [Indexed: 12/21/2022]
Affiliation(s)
- Alina M. Petrescu
- OncoGen CenterCounty Hospital ‘Pius Branzeu' 156 Liviu Rebreanu Blvd. 300736 Timisoara Romania
- West University of Timisoara 14 Pestalozzi Str. Timisoara RO-300115 Romania
| | | | - Virgil Paunescu
- OncoGen CenterCounty Hospital ‘Pius Branzeu' 156 Liviu Rebreanu Blvd. 300736 Timisoara Romania
- University of Medicine and Pharmacy ‘Victor Babes' 2 Eftimie Murgu Sq. 300041 Timisoara Romania
| | - Gheorghe Ilia
- West University of Timisoara 14 Pestalozzi Str. Timisoara RO-300115 Romania
- Institute of Chemistry ‘Coriolan Dragulescu' 24 Mihai Viteazu Blvd. 300223 Timisoara Romania
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Iman V, Taculescu A, Dehelean C, Paunescu V. Magnetic Nanoparticles (MNPs) Influence on SK-BR3 Breast Cancer Cell Line - in vitro Study. Rev Chim 2019. [DOI: 10.37358/rc.19.7.7360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Nanotechnologies involving the use of magnetic nanoparticles made of nickel, iron or cobalt are nowadays developing in anti-tumor therapy and diagnostic. The most important potential of MNPs is for drug delivery, meaning they are functionalized by binding to chemotherapeutic agents, nucleic acids, antibodies, etc. The present study is questioning the possibility of oleic acid-coated iron MNPs to induce cell death per se, selectively in tumor cells (breast cancer adenocarcinoma SK-BR3 cell line) without previous coupling with effector substances.
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12
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Proks M, Heghes A, Cheveresan A, Nita S, Voicu M, Buda V, Ionescu D, Nita L, Trandafirescu C, Paunescu V. Thyme Leaves Aqueous Extract and its Formulations. A comparative study based on chemical structures and biological activity. Rev Chim 2019. [DOI: 10.37358/rc.19.5.7236] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The present study was conducted in order to evaluate the biological activity of thyme aqueous extract as compared to the silver nanoparticles obtained on it on four different cancer lines: non-melanoma skin cancer (A431 cell line), melanoma skin cancer (A375cell line), hormone dependent breast cancer (MCF-7 cell line), and non-hormone dependent breast cancer (MDA-MB-231 cell line). Of particular importance in the study of biological activity is the chemical composition. Formulas rich in compounds of classes like those of flavonoids are recognized for their efficacy and important antioxidant effect. The extract tested at various concentrations ranging from 10-1000 �g/mL exhibited a pronounced effect only on MCF-7 cells at the highest concentration tested and regarding the biosynthesized silver nanoparticles, the effect can be noted even at 1 � M also only in the case of MCF-7 cells.
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13
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Petrescu AM, Paunescu V, Ilia G. The antiviral activity and cytotoxicity of 15 natural phenolic compounds with previously demonstrated antifungal activity. J Environ Sci Health B 2019; 54:498-504. [PMID: 30736713 DOI: 10.1080/03601234.2019.1574176] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Accepted: 01/16/2019] [Indexed: 06/09/2023]
Abstract
The present study attempted to evaluate the carcinogenicity of natural phenolic compounds with previously demonstrated antifungal activity, using a computational structure-cytotoxicity approach, namely the quantum structure cytotoxicity relationship model. The cytotoxicity of 15 phenolic compounds with antiviral activity 96 h after treatment was studied using the AdmetSAR computational program. Per the EPA classification, four of the investigated compounds would be included in the second cytotoxicity category, four in the third category, and six showed no toxicity, rendering the studied natural phenolic compounds much less toxic to aquatic life than synthetic pesticides, the organophosphorus compounds, which mostly fall into the first and second categories of toxicity.
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Affiliation(s)
- Alina M Petrescu
- a Center for Genic and Cellular Therapies in Cancer Treatment , Timisoara , Romania
- b Faculty of Chemistry, Biology, Geography, Department of Biology-Chemistry , West University of Timisoara , Timisoara , Romania
| | - Virgil Paunescu
- a Center for Genic and Cellular Therapies in Cancer Treatment , Timisoara , Romania
- c Department of Biology and Environmental Health , University of Medicine and Pharmacy "Victor Babes" , Timisoara , Romania
| | - Gheorghe Ilia
- a Center for Genic and Cellular Therapies in Cancer Treatment , Timisoara , Romania
- d Institute of Chemistry of the Romanian Academy , Timisoara , Romania
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14
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Rusu D, Boariu M, Stratul ȘI, Bojin F, Paunescu V, Calniceanu H, Surlin P, Roman A, Milicescu Ș, Caruntu C, Didilescu A, Gaje NP, Calenic B. Interaction between a 3D collagen matrix used for periodontal soft tissue regeneration and T-lymphocytes: An in vitro pilot study. Exp Ther Med 2019; 17:990-996. [PMID: 30679964 PMCID: PMC6327677 DOI: 10.3892/etm.2018.6979] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Accepted: 09/24/2018] [Indexed: 01/23/2023] Open
Abstract
Previous experimental models showed that activation of the immune system, particularly T cells, is required for optimal healing following wounds or surgery in the oral cavity. Therefore, studies to explore the interactions between the immune system and the collagen matrix are mandated. The specific aim of the present study was to analyze the interactions between T lymphocytes and a resorbable three-dimensional (3D) collagen matrix routinely used for soft tissue regeneration during periodontal surgery. Peripheral venous blood samples were collected from five patients. Following Ficoll-Paque separation, mononuclear cells were grown on fully resorbable 3D collagen matrices for 5 days. Lymphocytes were analyzed by flow cytometry for different surface markers, including CD4, CD8, CD38 and CD69. Cell viability and late apoptosis/necrosis were assessed in each group using an apoptosis assay based on Annexin V/propidium iodide staining. After 5 days in contact with the collagen matrix, the T cells expressed different surface markers. The overall T cell population increased significantly in the collagen matrix group compared to the respective controls (31.9±6.5 vs. 38.7±3.8%). CD8 and CD69 also increased significantly compared to their controls (CD69: 19.7±3.0 vs. 27.1±4.5% for collagen vs. control groups). At the same time, CD4 and CD38 expression was similar in both groups. Viability and apoptosis/necrosis were also identical in the samples and controls. These results show that the interaction between the collagen matrix and the immune cells stimulated activation of T cells and did not impair the healing process.
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Affiliation(s)
- Darian Rusu
- Department of Periodontology, ‘Victor Babes’ University of Medicine and Pharmacy, 300141 Timisoara, Romania
| | - Marius Boariu
- Department of Restorative Dentistry and Endodontics, ‘Victor Babes’ University of Medicine and Pharmacy, 300141 Timisoara, Romania
| | - Ștefan-Ioan Stratul
- Department of Periodontology, ‘Victor Babes’ University of Medicine and Pharmacy, 300141 Timisoara, Romania
| | - Florina Bojin
- Department of Physiology, ‘Victor Babes’ University of Medicine and Pharmacy, 300230 Timisoara, Romania
| | - Virgil Paunescu
- Department of Physiology, ‘Victor Babes’ University of Medicine and Pharmacy, 300230 Timisoara, Romania
| | - Horia Calniceanu
- Department of Periodontology, ‘Victor Babes’ University of Medicine and Pharmacy, 300141 Timisoara, Romania
| | - Petra Surlin
- Department of Periodontology, University of Medicine and Pharmacy, 200349 Craiova, Romania
| | - Alexandra Roman
- Department of Periodontology, ‘Iuliu Hatieganu’ University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania
| | - Ștefan Milicescu
- Department of Fixed Prosthodontics, ‘Carol Davila’ University of Medicine and Pharmacy, 020021 Bucharest, Romania
| | - Costin Caruntu
- Department of Physiology, Faculty of Midwifery and Nursing, ‘Carol Davila’ University of Medicine and Pharmacy, 020021 Bucharest, Romania
| | - Andreea Didilescu
- Department of Embryology, ‘Carol Davila’ University of Medicine and Pharmacy, 020021 Bucharest, Romania
| | - Nela-Pusa Gaje
- Department of Histology, ‘Victor Babes’ University of Medicine and Pharmacy, 300230 Timisoara, Romania
| | - Bogdan Calenic
- Department of Biochemistry, Faculty of Dental Medicine, ‘Carol Davila’ University of Medicine and Pharmacy, 020021 Bucharest, Romania
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15
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Gruia AT, Oprean C, Ivan A, Cean A, Cristea M, Draghia L, Damiescu R, Pavlovic NM, Paunescu V, Tatu CA. Balkan endemic nephropathy and aristolochic acid I: an investigation into the role of soil and soil organic matter contamination, as a potential natural exposure pathway. Environ Geochem Health 2018; 40:1437-1448. [PMID: 29288399 DOI: 10.1007/s10653-017-0065-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Accepted: 12/22/2017] [Indexed: 06/07/2023]
Abstract
Aristolochic acids (AAs) are carcinogenic and nephrotoxic plant alkaloids present in Aristolochia species, used in traditional medicine. Recent biomolecular and environmental studies have incriminated these toxins as an etiological agent in Balkan endemic nephropathy (BEN), a severe kidney disease occurring in the Balkan Peninsula. The questions on how the susceptible populations are exposed to these toxins have not yet been clearly answered. Exposure to AAs through the food chain, and environmental pollution (soil/dust), could provide an explanation for the presence of BEN in the countries where no folkloric use of the plant has been documented (Bulgaria, Croatia). Additional exposure pathways are likely to occur, and we have shown previously that AAs can contaminate crop plants through absorption from soil, under controlled laboratory environment. Here, we attempt to provide additional support to this potential exposure pathway, by revealing the presence of AAI in soil and soil organic matter samples collected from BEN and non-BEN areas. The samples were processed in order to be analyzed by high-pressure liquid chromatography, and ion trap mass spectrometry. Our results showed the presence of AAI in small concentrations, both in BEN and non-BEN soils, especially where Aristolochia plants and seeds were present.
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Affiliation(s)
- Alexandra T Gruia
- OncoGen Centre, County Hospital "Pius Branzeu", Blvd. Liviu Rebreanu 156, 300736, Timisoara, Romania
| | - Camelia Oprean
- OncoGen Centre, County Hospital "Pius Branzeu", Blvd. Liviu Rebreanu 156, 300736, Timisoara, Romania.
- Department of Environmental and Food Chemistry, Faculty of Pharmacy, University of Medicine and Pharmacy "Victor Babes", Eftimie Murgu Sq. 2, 300041, Timisoara, Romania.
| | - Alexandra Ivan
- OncoGen Centre, County Hospital "Pius Branzeu", Blvd. Liviu Rebreanu 156, 300736, Timisoara, Romania
- Department of Biology and Environmental Health, University of Medicine and Pharmacy "Victor Babes", Eftimie Murgu Sq. 2, 300041, Timisoara, Romania
| | - Ada Cean
- OncoGen Centre, County Hospital "Pius Branzeu", Blvd. Liviu Rebreanu 156, 300736, Timisoara, Romania
| | - Mirabela Cristea
- OncoGen Centre, County Hospital "Pius Branzeu", Blvd. Liviu Rebreanu 156, 300736, Timisoara, Romania
| | - Lavinia Draghia
- OncoGen Centre, County Hospital "Pius Branzeu", Blvd. Liviu Rebreanu 156, 300736, Timisoara, Romania
- Department of Immunology, University of Medicine and Pharmacy "Victor Babes", Eftimie Murgu Sq. 2, 300041, Timisoara, Romania
| | - Roxana Damiescu
- OncoGen Centre, County Hospital "Pius Branzeu", Blvd. Liviu Rebreanu 156, 300736, Timisoara, Romania
| | | | - Virgil Paunescu
- OncoGen Centre, County Hospital "Pius Branzeu", Blvd. Liviu Rebreanu 156, 300736, Timisoara, Romania
- Department of Immunology, University of Medicine and Pharmacy "Victor Babes", Eftimie Murgu Sq. 2, 300041, Timisoara, Romania
| | - Calin A Tatu
- OncoGen Centre, County Hospital "Pius Branzeu", Blvd. Liviu Rebreanu 156, 300736, Timisoara, Romania
- Department of Biology and Environmental Health, University of Medicine and Pharmacy "Victor Babes", Eftimie Murgu Sq. 2, 300041, Timisoara, Romania
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Nagib R, Zogorean R, Gavriliuc OI, Szuhanek C, Moldoveanu B, Negrutiu ML, Sinescu C, Paunescu V, Brad S. Cytotoxicity Assessment of Metal and 3D Printed Resin Orthodontic Attachments An in vitro cell culture behavior study. Rev Chim 2018. [DOI: 10.37358/rc.18.6.6358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Materials used in orthodontics are constantly changing and improving, but biocompatibility remains one of their most important characteristics.The purpose of this study is to evaluate the in vitro cellular behavior of dental MSC cells when put in contact with metal and 3D printed resin orthodontic attachments.Cell monolayers were seeded in wells and left to adhere. Polymer and metal orthodontic attachments were placed into the wells. The cells were analyzed on an inverted light microscope. The cellular viability was determined using Alamar Blue assay. Results showed that the morphology and the density of cells are not affected by the presence of either orthodontic material compared to the controls.The metabolic activity of the cells was not altered. Similar cellular reactions,were observed in contact with both materials used in our short term in vitro study.
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Oprean C, Ivan A, Bojin F, Cristea M, Soica C, Drăghia L, Caunii A, Paunescu V, Tatu C. Selective in vitro anti-melanoma activity of ursolic and oleanolic acids. Toxicol Mech Methods 2018; 28:148-156. [PMID: 28868958 DOI: 10.1080/15376516.2017.1373881] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Products of natural origin have become important agents in the treatment of cancer, and the active principles of natural sources could be used in combination with chemotherapeutic agents to increase their effects and to minimize their toxicity. Oleanolic (OA) and ursolic (UA) acids are intensely studied for their promising anticancer potential. The aim of this study was focused on the in vitro toxicological effects induced by UA and OA human mesenchymal stem cells and on melanoma, one of the most frequent cancers whose incidence is increasing every year. The two compounds were tested for their cytotoxic, cell cycle arrest and pro-apoptotic effects on melanoma cells (A375 and B164A5) and mesenchymal stem cells. UA exerted a cytotoxic effect in a dose-dependent manner on melanoma cells, while OA's activity has been shown to be low or moderate. Both compounds produced alterations of the cell cycle, arresting cells in the G0/G1 phase. Furthermore, UA induced significant apoptosis through the bcl-2 genes family pathway, with the decrease of the bcl-2 gene expression. The two compounds exerted selective effects on melanoma cells with no effects on human mesenchymal stem cells. The presented results reveal the anticancer potential of UA on melanoma cells, with no detectable toxicity on the mesenchymal stem cells.
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Affiliation(s)
- Camelia Oprean
- a Department of Environmental and Food Chemistry, Faculty of Pharmacy , Victor Babeş University of Medicine and Pharmacy , Timişoara , Romania
- b 'Pius Brinzeu' Timişoara County Emergency Clinical Hospital, Oncogen Institute , Timişoara , Romania
| | - Alexandra Ivan
- b 'Pius Brinzeu' Timişoara County Emergency Clinical Hospital, Oncogen Institute , Timişoara , Romania
- c Department of Functional Sciences, Faculty of Medicine , Victor Babeş University of Medicine and Pharmacy , Timişoara , Romania
| | - Florina Bojin
- b 'Pius Brinzeu' Timişoara County Emergency Clinical Hospital, Oncogen Institute , Timişoara , Romania
- c Department of Functional Sciences, Faculty of Medicine , Victor Babeş University of Medicine and Pharmacy , Timişoara , Romania
| | - Mirabela Cristea
- b 'Pius Brinzeu' Timişoara County Emergency Clinical Hospital, Oncogen Institute , Timişoara , Romania
| | - Codruta Soica
- d Department of Pharmaceutical Chemistry, Faculty of Pharmacy , Victor Babeş University of Medicine and Pharmacy , Timişoara , Romania
| | - Lavinia Drăghia
- b 'Pius Brinzeu' Timişoara County Emergency Clinical Hospital, Oncogen Institute , Timişoara , Romania
- c Department of Functional Sciences, Faculty of Medicine , Victor Babeş University of Medicine and Pharmacy , Timişoara , Romania
| | - Angela Caunii
- a Department of Environmental and Food Chemistry, Faculty of Pharmacy , Victor Babeş University of Medicine and Pharmacy , Timişoara , Romania
| | - Virgil Paunescu
- b 'Pius Brinzeu' Timişoara County Emergency Clinical Hospital, Oncogen Institute , Timişoara , Romania
- c Department of Functional Sciences, Faculty of Medicine , Victor Babeş University of Medicine and Pharmacy , Timişoara , Romania
| | - Calin Tatu
- b 'Pius Brinzeu' Timişoara County Emergency Clinical Hospital, Oncogen Institute , Timişoara , Romania
- c Department of Functional Sciences, Faculty of Medicine , Victor Babeş University of Medicine and Pharmacy , Timişoara , Romania
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Abstract
Cardiopulmonary bypass (CPB) devices replace transiently the function of both heart and lungs, allowing the investigator to work safely on a stopped heart. Although this technology has greatly improved since its first applications in the early 1950's there is still no definitive rat CPB model, various experiments reporting drawbacks like pulmonary edema, large priming volumes, etc. We present a new oxygenator that can be used in cardiopulmonary bypass experiments in rats, simple in design and efficient in function, in which the process of blood oxygenation takes place in a vertical cylinder filled up with air or oxygen, with blood being spread onto the wall and then trickling down in a thin layer that facilitates the oxygen transfer. The oxygenation is efficient, the pO2 reaches levels of almost 150 mmHg (physiological level is around 100 mmHg) in conditions of oxygen saturation of over 99% (normal levels 95%-98%).
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Affiliation(s)
- V L Ordodi
- Department of Physiology, University of Medicine and Pharmacy Victor Babes, County Hospital Timisoara, Romania
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Caunii A, Oprean C, Cristea M, Ivan A, Danciu C, Tatu C, Paunescu V, Marti D, Tzanakakis G, Spandidos DA, Tsatsakis A, Susan R, Soica C, Avram S, Dehelean C. Effects of ursolic and oleanolic on SK‑MEL‑2 melanoma cells: In vitro and in vivo assays. Int J Oncol 2017; 51:1651-1660. [PMID: 29039461 PMCID: PMC5673023 DOI: 10.3892/ijo.2017.4160] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Accepted: 10/02/2017] [Indexed: 12/21/2022] Open
Abstract
Among the triterpenoids, oleanolic acid (OA) and its isomer, ursolic acid (UA) are promising therapeutic candidates, with potential benefits in the management of melanoma. In this study, we aimed to examine the in vitro and in vivo anti‑invasive and anti‑metastatic activity of OA and UA to determine their possible usefulness as chemopreventive or chemotherapeutic agents in melanoma. For the in vitro experiments, the anti‑proliferative activity of the triterpenic compounds on SK‑MEL‑2 melanoma cells was examined. The anti‑invasive potential was assessed by testing the effects of the active compound on vascular cell adhesion molecule (VCAM) and intercellular adhesion molecule (ICAM) adhesion to melanoma cells. Normal and tumor angiogenesis were evaluated in vivo by chicken embryo chorioallantoic membrane (CAM) assay. The two test triterpenoid acids, UA and OA, exerted differential effects in vitro and in vivo on the SK‑MEL‑2 melanoma cells. UA exerted a significant and dose‑dependent anti‑proliferative effect in vitro, compared to OA. The cytotoxic effects in vitro on the melanoma cells were determined by the examining alterations in the cell cycle phases induced by UA that lead to cell arrest in the S phase. Moreover, UA was found to affect SK‑MEL‑2 melanoma cell invasiveness by limiting the cell adhesion capacity to ICAM molecules, but not influencing their adhesion to VCAM molecules. On the whole, in this study, by assessing the effects of the two triterpenoids in vivo, our results revealed that OA had a greater potential to impair the invasive capacity and tumor angiogenesis compared with UA.
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Affiliation(s)
- Angela Caunii
- Faculty of Pharmacy, 'Victor Babeş' University of Medicine and Pharmacy, 300041 Timişoara
| | - Camelia Oprean
- Faculty of Pharmacy, 'Victor Babeş' University of Medicine and Pharmacy, 300041 Timişoara
- 'Pius Brinzeu' Timişoara County Emergency Clinical Hospital, Oncogen Institute, 300723 Timişoara
| | - Mirabela Cristea
- 'Pius Brinzeu' Timişoara County Emergency Clinical Hospital, Oncogen Institute, 300723 Timişoara
| | - Alexandra Ivan
- 'Pius Brinzeu' Timişoara County Emergency Clinical Hospital, Oncogen Institute, 300723 Timişoara
- Faculty of Medicine, 'Victor Babeş' University of Medicine and Pharmacy, 300041 Timişoara
| | - Corina Danciu
- Faculty of Pharmacy, 'Victor Babeş' University of Medicine and Pharmacy, 300041 Timişoara
| | - Calin Tatu
- 'Pius Brinzeu' Timişoara County Emergency Clinical Hospital, Oncogen Institute, 300723 Timişoara
- Faculty of Medicine, 'Victor Babeş' University of Medicine and Pharmacy, 300041 Timişoara
| | - Virgil Paunescu
- 'Pius Brinzeu' Timişoara County Emergency Clinical Hospital, Oncogen Institute, 300723 Timişoara
- Faculty of Medicine, 'Victor Babeş' University of Medicine and Pharmacy, 300041 Timişoara
| | - Daniela Marti
- Faculty of Medicine, Western University Vasile Goldis, Arad 310025, Romania
| | - George Tzanakakis
- Faculty of Medicine, University of Crete, 71003 Heraklion, Crete, Greece
| | | | - Aristides Tsatsakis
- Faculty of Medicine, 'Victor Babeş' University of Medicine and Pharmacy, 300041 Timişoara
- Faculty of Medicine, University of Crete, 71003 Heraklion, Crete, Greece
| | - Razvan Susan
- Faculty of Medicine, 'Victor Babeş' University of Medicine and Pharmacy, 300041 Timişoara
| | - Codruta Soica
- Faculty of Pharmacy, 'Victor Babeş' University of Medicine and Pharmacy, 300041 Timişoara
| | - Stefana Avram
- Faculty of Pharmacy, 'Victor Babeş' University of Medicine and Pharmacy, 300041 Timişoara
| | - Cristina Dehelean
- Faculty of Pharmacy, 'Victor Babeş' University of Medicine and Pharmacy, 300041 Timişoara
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Corina D, Bojin F, Ambrus R, Muntean D, Soica C, Paunescu V, Cristea M, Pinzaru I, Dehelean C. Physico-chemical and Biological Evaluation of Flavonols: Fisetin, Quercetin and Kaempferol Alone and Incorporated in beta Cyclodextrins. Anticancer Agents Med Chem 2017; 17:615-626. [DOI: 10.2174/1871520616666160621105306] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Revised: 04/19/2016] [Accepted: 06/18/2016] [Indexed: 11/22/2022]
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Oprean C, Zambori C, Borcan F, Soica C, Zupko I, Minorics R, Bojin F, Ambrus R, Muntean D, Danciu C, Pinzaru IA, Dehelean C, Paunescu V, Tanasie G. Anti-proliferative and antibacterial in vitro evaluation of the polyurethane nanostructures incorporating pentacyclic triterpenes. Pharm Biol 2016; 54:2714-2722. [PMID: 27159077 DOI: 10.1080/13880209.2016.1180538] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
CONTEXT Oleanolic and ursolic acids are antitumor and antibacterial agents which are extensively studied. Their major disadvantage is the poor water solubility which limits their applications. OBJECTIVES Oleanolic and ursolic acid were encapsulated into polyurethane nanostructures that act as drug carriers. In order to evaluate the effectiveness of the particles, anti-microbial and anti-proliferative activity compared to un-encapsulated active compounds was tested. MATERIALS AND METHODS Using an interfacial polycondensation technique, combined with spontaneous emulsification, structures with nanoscale dimensions were obtained. Scanning electron microscopy, differential scanning calorimetry and X-ray assays confirmed the encapsulation process. Concentrations of 10 and 30 μM particles and un-encapsulated compounds were tested by MTT viability assay for several breast cancer lines, with an exposure time of 72 h. For the antibacterial studies, the dilution method with MIC determination was used. RESULTS Ursolic acid had an excellent inhibitory effect with IC50 value of 2.47, 1.20, 1.26 and 1.34 μM on MCF7, T47D, MDA-MB-231 and MDA-MB-361, respectively. Oleanolic acid did not show anti-proliferative activity. The pure compounds showed their antibacterial activity only against Bacillus species and Candida albicans, but MIC values were too high to be considered efficient antimicrobial agents (2280 and 4570 μg mL - 1, respectively). Polyurethane nanoparticles which incorporated the agents did not show any biological activity. DISCUSSION AND CONCLUSION Although the active compounds did not fully exert their anti-proliferative activity following encapsulation inside polymeric nanoparticles, in vivo evaluation is needed in order to obtain an exhaustive conclusion, as the active compounds could be released as a result of metabolic activity.
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Affiliation(s)
- Camelia Oprean
- a Faculty of Pharmacy , University of Medicine and Pharmacy "Victor Babeş" , Timişoara , România
| | - Csilla Zambori
- b Faculty of Medicine , University of Medicine and Pharmacy "Victor Babeş" , Timişoara , România
| | - Florin Borcan
- a Faculty of Pharmacy , University of Medicine and Pharmacy "Victor Babeş" , Timişoara , România
| | - Codruta Soica
- a Faculty of Pharmacy , University of Medicine and Pharmacy "Victor Babeş" , Timişoara , România
| | - Istvan Zupko
- c Department of Pharmacodynamics and Biopharmacy , University of Szeged , Szeged , Hungary
| | - Renata Minorics
- c Department of Pharmacodynamics and Biopharmacy , University of Szeged , Szeged , Hungary
| | - Florina Bojin
- b Faculty of Medicine , University of Medicine and Pharmacy "Victor Babeş" , Timişoara , România
| | - Rita Ambrus
- d Department of Pharmaceutical Technology , University of Szeged , Szeged , Hungary
| | - Delia Muntean
- b Faculty of Medicine , University of Medicine and Pharmacy "Victor Babeş" , Timişoara , România
| | - Corina Danciu
- a Faculty of Pharmacy , University of Medicine and Pharmacy "Victor Babeş" , Timişoara , România
| | - Iulia Andreea Pinzaru
- a Faculty of Pharmacy , University of Medicine and Pharmacy "Victor Babeş" , Timişoara , România
| | - Cristina Dehelean
- a Faculty of Pharmacy , University of Medicine and Pharmacy "Victor Babeş" , Timişoara , România
| | - Virgil Paunescu
- b Faculty of Medicine , University of Medicine and Pharmacy "Victor Babeş" , Timişoara , România
| | - Gabriela Tanasie
- b Faculty of Medicine , University of Medicine and Pharmacy "Victor Babeş" , Timişoara , România
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Oprean C, Mioc M, Csányi E, Ambrus R, Bojin F, Tatu C, Cristea M, Ivan A, Danciu C, Dehelean C, Paunescu V, Soica C. Improvement of ursolic and oleanolic acids' antitumor activity by complexation with hydrophilic cyclodextrins. Biomed Pharmacother 2016; 83:1095-1104. [PMID: 27551755 DOI: 10.1016/j.biopha.2016.08.030] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Revised: 08/01/2016] [Accepted: 08/09/2016] [Indexed: 12/13/2022] Open
Abstract
Ursolic and oleanolic acids have been brought into the spotlight of research due to their chemopreventive, anti-inflammatory and immunomodulatory properties. The most important disadvantage of ursolic and oleanolic acids is their weak water solubility which limits their bioavailability. Pentacyclic triterpenes can form inclusion complexes with different types of cyclodextrins which provide the hydrophilic matrix requested for the molecular dispersion of drugs in order to become more water soluble. The aim of the current study is the complexation of ursolic and oleanolic acids with hydrophilic cyclodextrins in order to achieve an improvement of their pharmacological effect. After the virtual screening of the binding affinities between ursolic and oleanolic acids and various cyclodextrins, 2-hydroxypropyl-β-cyclodextrin and 2-hydroxypropil-γ-cyclodextrin were selected as host-molecules for the inclusion complexation. Using the scanning electron microscopy, differential scanning calorimetry and X-ray diffraction the formation of real inclusion complexes between ursolic and oleanolic acids and the two cyclodextrins was confirmed. The anti-proliferative potential of the complexes was tested in vitro on several melanoma cell lines, using the pure compounds as reference. The complexes exhibited higher in vitro anti-proliferative activity as compared to the pure compounds; this improvement was significant for ursolic acid complexes, the highest activity being reported for the 2-hydroxypropil-γ-cyclodextrin complex. Weaker results were recorded for the oleanolic acid complexes where 2-hydroxypropyl-β-cyclodextrin proved to be the most fitted inclusion partner. The entrapment of the two active compounds inside ramified hydrophilic cyclodextrins proved to be a suitable option to increase their anti-proliferative activity.
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Affiliation(s)
- Camelia Oprean
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Victor Babeş University of Medicine and Pharmacy, 2nd Eftimie Murgu Sq., Timişoara 300041, Romania.
| | - Marius Mioc
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Victor Babeş University of Medicine and Pharmacy, 2nd Eftimie Murgu Sq., Timişoara 300041, Romania.
| | - Erzsébet Csányi
- Department of Pharmaceutical Technology, University of Szeged, H-6720 Szeged, Eötvös u. 6, Hungary.
| | - Rita Ambrus
- Department of Pharmaceutical Technology, University of Szeged, H-6720 Szeged, Eötvös u. 6, Hungary.
| | - Florina Bojin
- Department of Functional Sciences, Faculty of Medicine, Victor Babeş University of Medicine and Pharmacy, 2nd Eftimie Murgu Sq., Timişoara 300041, Romania.
| | - Calin Tatu
- Department of Functional Sciences, Faculty of Medicine, Victor Babeş University of Medicine and Pharmacy, 2nd Eftimie Murgu Sq., Timişoara 300041, Romania.
| | - Mirabela Cristea
- "Pius Brinzeu" Timişoara County Emergency Clinical Hospital, 156 Liviu Rebreanu, Timişoara 300723, Romania.
| | - Alexandra Ivan
- Department of Functional Sciences, Faculty of Medicine, Victor Babeş University of Medicine and Pharmacy, 2nd Eftimie Murgu Sq., Timişoara 300041, Romania.
| | - Corina Danciu
- Department of Pharmacognosy, Faculty of Pharmacy, Victor Babeş University of Medicine and Pharmacy, 2nd Eftimie Murgu Sq., Timişoara 300041, Romania.
| | - Cristina Dehelean
- Department of Toxicology, Faculty of Pharmacy, Victor Babeş University of Medicine and Pharmacy, 2nd Eftimie Murgu Sq., Timişoara 300041, Romania.
| | - Virgil Paunescu
- Department of Functional Sciences, Faculty of Medicine, Victor Babeş University of Medicine and Pharmacy, 2nd Eftimie Murgu Sq., Timişoara 300041, Romania.
| | - Codruta Soica
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Victor Babeş University of Medicine and Pharmacy, 2nd Eftimie Murgu Sq., Timişoara 300041, Romania.
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Cean A, Ilie D, Gavriliuc OI, Paunescu V. Reproductive biotechnologies for the conservation of Romanian Grey Steppe genetic heritage. J Biotechnol 2016. [DOI: 10.1016/j.jbiotec.2016.05.353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Rusu D, Calenic B, Greabu M, Kralev A, Boariu M, Bojin F, Anghel S, Paunescu V, Vela O, Calniceanu H, Stratul SI. Evaluation of oral keratinocyte progenitor and T-lymphocite cells response during early healing after augmentation of keratinized gingiva with a 3D collagen matrix - a pilot study. BMC Oral Health 2016; 17:9. [PMID: 27431208 PMCID: PMC4948093 DOI: 10.1186/s12903-016-0240-x] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Accepted: 06/11/2016] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND The aim of the present study is to analyze the behavior of selected populations of oral keratinocytes and T-lymphocytes, responsible for re-constructing and maintaining the oral epithelial tissue architecture, following augmentation of the keratinized oral mucosa using a 3D-collagen matrix. METHODS Different groups of oral keratinocytes were isolated from biopsies harvested from 3 patients before the surgical procedure, as well as 7 and 14 days after the augmentation procedure. T-lymphocytes were isolated from peripheral blood at same timepoints. Keratinocytes were characterized for stem and differentiation markers, such as p63, cytokeratin 10 and 14, and in vitro parameters, such as cell viability, cell size and colony-forming efficiency. T-lymphocytes were analyzed for viability and the expression of various cluster of differentiation markers. The methods included magnetic separation of cell populations, immunofluorescence, flow cytometry, and histology of oral biopsies. RESULTS Both at 7 and 14 days, the majority of cells that repopulate the matrix were actively proliferating/progenitor oral keratinocytes with the phenotype integrin alfa6beta4 + CD71+. These cells display in vitro characteristics similar to the progenitor cells analyzed before the matrix placement. T-lymphocytes expressed CD8 and CD69 markers, while CD25 was absent. CONCLUSION The study shows that two weeks after the collagen membrane placement, the healing process appeared to be histologically complete, with no abnormal immune response induced by the matrix, however, with a higher than usual content of active proliferating cells, the majority of keratinocytes being characterized as transit amplifying cells.
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Affiliation(s)
- Darian Rusu
- />Department of Periodontology, Victor Babes University of Medicine and Pharmacy, Bv. Revolutiei 1989, Nr. 9, 300041 Timisoara, Romania
| | - Bogdan Calenic
- />Department of Biochemistry, Faculty of Dental Medicine, University of Medicine and Pharmacy, Carol Davila, Blvd-ul Eroii Sanitari, No 8, Bucharest, Romania
- />Victor Babes National Institute of Pathology, Biochemistry-Proteomics Department, Blv. Splaiul Independenţei nr. 99 - 101, Bucharest, Romania
| | - Maria Greabu
- />Department of Biochemistry, Faculty of Dental Medicine, University of Medicine and Pharmacy, Carol Davila, Blvd-ul Eroii Sanitari, No 8, Bucharest, Romania
| | - Alexander Kralev
- />Department of Periodontology, Victor Babes University of Medicine and Pharmacy, Bv. Revolutiei 1989, Nr. 9, 300041 Timisoara, Romania
| | - Marius Boariu
- />Department of Odontotherapy and Endodontics, Victor Babes University of Medicine and Pharmacy, Bv. Revolutiei 1989, 9, 300041 Timisoara, Romania
| | - Florina Bojin
- />Department of Functional Sciences-Immunology, Victor Babes University of Medicine and Pharmacy, Pta Eftimie Murgu nr.2, 300041 Timisoara, Romania
| | - Simona Anghel
- />Department of Functional Sciences-Immunology, Victor Babes University of Medicine and Pharmacy, Pta Eftimie Murgu nr.2, 300041 Timisoara, Romania
| | - Virgil Paunescu
- />Department of Functional Sciences-Immunology, Victor Babes University of Medicine and Pharmacy, Pta Eftimie Murgu nr.2, 300041 Timisoara, Romania
| | - Octavia Vela
- />Dental Clinic Dr.Stratul, Str.Emanoil Gojdu, nr.5, 300176 Timisoara, Romania
| | - Horia Calniceanu
- />Department of Dentistry, Faculty of Medicine and Pharmacy, University of Oradea, Pta 1 Decembrie nr.10, Oradea, Romania
| | - Stefan-Ioan Stratul
- />Department of Periodontology, Victor Babes University of Medicine and Pharmacy, Bv. Revolutiei 1989, Nr. 9, 300041 Timisoara, Romania
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Bojin M, Gavriliuc O, Tatu C, Tanasie G, Panaitescu C, Tatu C, Paunescu V. 891: Cytotoxic T lymphocytes functionally active against tumor microenvironment-derived specific antigen. Eur J Cancer 2014. [DOI: 10.1016/s0959-8049(14)50791-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Paunescu V, Bojin FM, Gavriliuc OI, Taculescu EA, Ianos R, Ordodi VL, Iman VF, Tatu CA. Enucleation: a possible mechanism of cancer cell death. J Cell Mol Med 2014; 18:962-5. [PMID: 24629135 PMCID: PMC4508136 DOI: 10.1111/jcmm.12271] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2013] [Accepted: 01/30/2014] [Indexed: 01/11/2023] Open
Abstract
There are few major morphologies of cell death that have been described so far: apoptosis (type I), cell death associated with autophagy (type II), necrosis (type III) and anchorage-dependent mechanisms—anoikis. Here, we show for the first time a possibly novel mechanism inducing tumour cell death under in vitro conditions—enucleation. We pursued the influence of colloidal suspensions of Fe3O4 nanoparticles on tumour cell lines (SK-BR-3 and MCF-7 breast cancer cell lines) grown according to standard cell culture protocols. Magnetite nanoparticles were prepared by combustion synthesis and double layer coated with oleic acid. Scanning and transmission electron microscopy revealed that tumour cells developed a network of intracytoplasmic stress fibres, which induce extrusion of nuclei, and enucleated cells die. Normal adult mesenchymal stem cells, used as control, did not exhibit the same behaviour. Intact nuclei were found in culture supernatant of tumour cells, and were visualized by immunofluorescence. Enucleation as a potential mechanism of tumour cell death might open new horizons in cancer biology research and development of therapeutic agents capable of exploiting this behaviour.
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Affiliation(s)
- Virgil Paunescu
- Department of Functional Sciences, University of Medicine and Pharmacy "Victor Babes" Timisoara, Timisoara, Romania; Center for Transplant Immunology, Clinical Emergency County Hospital Timisoara, Timisoara, Romania
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Gavriliuc OI, Paunescu V, Ilie DE, Milovanov C, Tulcan C, Hutu I, Mircu C. Gene expression patterns during in vitro differentiation of bovine skeletal muscle. Curr Opin Biotechnol 2013. [DOI: 10.1016/j.copbio.2013.05.463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Pavlović NM, Maksimović V, Maksimović JD, Orem WH, Tatu CA, Lerch HE, Bunnell JE, Kostić EN, Szilagyi DN, Paunescu V. Possible health impacts of naturally occurring uptake of aristolochic acids by maize and cucumber roots: links to the etiology of endemic (Balkan) nephropathy. Environ Geochem Health 2013; 35:215-226. [PMID: 22851152 DOI: 10.1007/s10653-012-9477-8] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2012] [Accepted: 07/20/2012] [Indexed: 06/01/2023]
Abstract
Aristolochic acids (AAs) are nephrotoxic and carcinogenic derivatives found in several Aristolochia species. To date, the toxicity of AAs has been inferred only from the effects observed in patients suffering from a kidney disease called "aristolochic acid nephropathy" (AAN, formerly known as "Chinese herbs nephropathy"). More recently, the chronic poisoning with Aristolochia seeds has been considered to be the main cause of Balkan endemic nephropathy, another form of chronic renal failure resembling AAN. So far, it was assumed that AAs can enter the human food chain only through ethnobotanical use (intentional or accidental) of herbs containing self-produced AAs. We hypothesized that the roots of some crops growing in fields where Aristolochia species grew over several seasons may take up certain amounts of AAs from the soil, and thus become a secondary source of food poisoning. To verify this possibility, maize plant (Zea mays) and cucumber (Cucumis sativus) were used as a model to substantiate the possible significance of naturally occurring AAs' root uptake in food chain contamination. This study showed that the roots of maize plant and cucumber are capable of absorbing AAs from nutrient solution, consequently producing strong peaks on ultraviolet HPLC chromatograms of plant extracts. This uptake resulted in even higher concentrations of AAs in the roots compared to the nutrient solutions. To further validate the measurement of AA content in the root material, we also measured their concentrations in nutrient solutions before and after the plant treatment. Decreased concentrations of both AAI and AAII were found in nutrient solutions after plant growth. During this short-term experiment, there were much lower concentrations of AAs in the leaves than in the roots. The question is whether these plants are capable of transferring significant amounts of AAs from the roots into edible parts of the plant during prolonged experiments.
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Affiliation(s)
- Nikola M Pavlović
- Institute for Biomedical Research, Medical Faculty, University of Nis, Nis, Serbia.
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Barbu-Tudoran L, Gavriliuc OI, Paunescu V, Mic FA. Accumulation of tissue macrophages and depletion of resident macrophages in the diabetic thymus in response to hyperglycemia-induced thymocyte apoptosis. J Diabetes Complications 2013; 27:114-22. [PMID: 23153674 DOI: 10.1016/j.jdiacomp.2012.10.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2012] [Revised: 10/08/2012] [Accepted: 10/09/2012] [Indexed: 10/27/2022]
Abstract
AIMS We investigated the dynamics and morphology of thymus macrophages in response to thymus involution caused by hyperglycemia. Thymus is an organ affected early and dramatically after the onset of diabetes, losing most of the thymocyte populations but diabetes's impact on the components of the thymus stroma is largely unknown. METHODS Rats were injected with streptozotocin and thymus weight, body weight, and glycemia were measured at various time points. The dynamics and morphology of macrophages in the diabetic thymus were investigated by histology, immunohistochemistry, qPCR, electron microscopy and flow cytometry. RESULTS In hyperglycemic animals the involuting thymus is gradually infiltrated by tissue macrophages (ED1-positive) and depleted of resident macrophages (ED2-positive). While ED1 positive macrophages are scattered in both cortex and medulla the ED2 positive ones are limited to the cortex and cortico-medullary junction. CD4+CD11b+macrophages also accumulate. The TUNEL reaction that detects the degradation of the DNA from apoptotic thymocytes in the macrophages is enhanced. The thymic macrophages enlarge and accumulate lipid vacuoles and apoptotic bodies. qPCR measurements of the expression of macrophage markers showed a persistent increase in the diabetic thymus after the injection of streptozotocin. CONCLUSIONS Thymus involutes rapidly and persistently after the onset of hyperglycemia because of the elevated apoptosis in the thymocytes. Tissue macrophages accumulate in the thymus and the resident macrophages decrease. This results in an overall increase in macrophage activity in the diabetic thymus in response to the elevated apoptosis of thymocytes produced by hyperglycemia.
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Jiga J, Hoinoiu B, Stoichitoiu T, Dornean V, Nistor A, Barac S, Miclaus G, Ionac M, Paunescu V, Ursoniu S, Jiga LP. Induction of therapeutic neoangiogenesis using in vitro-generated endothelial colony-forming cells: an autologous transplantation model in rat. J Surg Res 2012; 181:359-68. [PMID: 22818979 DOI: 10.1016/j.jss.2012.06.059] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2012] [Revised: 06/11/2012] [Accepted: 06/22/2012] [Indexed: 12/13/2022]
Abstract
BACKGROUND Accumulating evidence shows the potential of bone marrow-derived endothelial colony-forming cells (bmECFCs) as promising tools for vascular repair. However, knowledge about their in vitro expansion, characterization, and functional behavior is still controversial. We demonstrate the in vitro generation of rat bmECFCs and analyze their ability to promote tissue reperfusion in a chronic hind-limb ischemia model. METHODS Either in vitro-generated and characterized autologous bmECFCs or placebo was injected into ischemic hind limbs of Sprague-Dawley rats. Tissue perfusion was quantified by laser Doppler, in perfusion units (PU), at days 0, 15, and 30. RESULTS Rat bmECFCs acquire a typical phenotype (CD34(+)VEGFR2(+)CD133(+)CXCR4(+)CD45(-)), culture, and functional behavior (Dil-ac-LDL+) in vitro. Injection of autologous bmECFCs improves tissue perfusion in ischemic hind limbs (183.5 ± 3.29 PU(bmECFCs/day 30)versus 131 ± 3.9 PU(controls/day 30), P < 0.001). CONCLUSIONS We conclude that rat bmECFCs promote ischemic tissue reperfusion and their proangiogenic properties are a potential mechanism for this effect.
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Affiliation(s)
- Janina Jiga
- Stem Cells Bank, Atena Hospital, Timisoara, Romania.
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Abstract
Human skeletal muscle tissue displays specific cellular architecture easily damaged during individual existence, requiring multiple resources for regeneration. Congruent with local prerequisites, heterogeneous muscle stem cells (MuSCs) are present in the muscle interstitium. In this study, we aimed to characterize the properties of human muscle interstitial cells that had the characteristic morphology of telocytes (TCs). Immunocytochemistry and immunofluorescence showed that cells with TC morphology stained positive for c-kit/CD117 and VEGF. C-kit positive TCs were separated with magnetic-activated cell sorting, cultured in vitro and expanded for study. These cells exhibited high proliferation capacity (60% expressed endoglin/CD105 and 80% expressed nuclear Ki67). They also exhibited pluripotent capacity limited to Oct4 nuclear staining. In addition, 90% of c-kit positive TCs expressed VEGF. C-kit negative cells in the MuSCs population exhibited fibroblast-like morphology, low trilineage differential potential and negative VEGF staining. These results suggested that c-kit/CD117 positive TCs represented a unique cell type within the MuSC niche.
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Affiliation(s)
- Florina M Bojin
- Department of Physiology, University of Medicine and Pharmacy Victor Babes Timisoara, Timisoara, Romania
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Bojin FM, Gruia AT, Cristea MI, Ordodi VL, Paunescu V, Mic FA. Adipocytes differentiated in vitro from rat mesenchymal stem cells lack essential free fatty acids compared to adult adipocytes. Stem Cells Dev 2011; 21:507-12. [PMID: 22023262 DOI: 10.1089/scd.2011.0491] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Adult bone marrow mesenchymal stem cells (BMSCs) can be differentiated in vitro to become adipocyte-like cells with lipid vacuoles, similar to adipocytes derived from adult adipose tissue. Little is known regarding the composition of free fatty acids (FFAs) of the in vitro-differentiated adipocytes, or whether it resembles that of native adult adipocytes. We used gas chromatography-mass spectrometry to identify FFA species in BMSC-derived adipocytes and compared them with FFAs found in adipocytes derived from adult adipose tissue. We found that adult adipocytes contained significant percentages of saturated and monounsaturated FFAs, including palmitic acid (C16:0), stearic acid (C18:0), and oleic acid (C18:1); some polyunsaturated FFAs, such as linoleic acid (C18:2), a small percentage of arachidonic acid (C20:4), and very little linolenic acid (C18:3). In comparison, 80%-90% confluent BMSCs contained comparable percentages of palmitic and oleic acids, significantly more arachidonic and stearic acids, very little linoleic acid, and no linolenic acid. After differentiation, compared with adult adipocytes, BMSC-derived adipocytes contained a comparable percentage of palmitic acid, more stearic and arachidonic acids, less oleic acid, almost no linoleic acid, and no detectable linolenic acid. This composition was quite similar to that of undifferentiated BMSCs. The differentiation medium contained only palmitic and stearic acids, with traces of oleic acid; it did not contain the essential polyunsaturated fatty acids. Thus, the composition of FFAs in BMSC-derived adipocytes was altered compared with adult adipocytes. BMSC-derived adipocytes had an altered composition of saturated and monounsaturated FFAs and lacked essential FFAs that may directly affect signaling related to their lipolysis/lipogenesis functions.
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Affiliation(s)
- Florina Maria Bojin
- Department of Physiology and Immunology, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania
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Paunescu V, Bojin FM, Tatu CA, Gavriliuc OI, Rosca A, Gruia AT, Tanasie G, Bunu C, Crisnic D, Gherghiceanu M, Tatu FR, Tatu CS, Vermesan S. Tumour-associated fibroblasts and mesenchymal stem cells: more similarities than differences. J Cell Mol Med 2011; 15:635-46. [PMID: 20184663 PMCID: PMC3922385 DOI: 10.1111/j.1582-4934.2010.01044.x] [Citation(s) in RCA: 148] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Tumour-associated fibroblasts (TAFs) are part of the tumour stroma, providing functional and structural support for tumour progression and development. The origin and biology of TAFs are poorly understood, but within the tumour environment, TAFs become activated and secrete different paracrine and autocrine factors involved in tumorigenesis. It has been shown that bone marrow mesenchymal stem cells (MSCs) can be recruited into the tumours, where they proliferate and acquire a TAF-like phenotype. We attempted to determine to what extent TAFs characteristics in vitro juxtapose to MSCs’ definition, and we showed that TAFs and MSCs share immunophenotypic similarities, including the presence of certain cell surface molecules [human leukocyte antigen-DR subregion (HLA-DR), CD29, CD44, CD73, CD90, CD106 and CD117]; the expression of cytoskeleton and extracellular matrix proteins, such as vimentin, α-smooth muscle actin, nestin and trilineage differentiation potential (to adipocytes, chondrocytes and osteoblasts). When compared to MSCs, production of cytokines, chemokines and growth factors showed a significant increase in TAFs for vascular endothelial growth factor, transforming growth factor-β1, interleukins (IL-4, IL-10) and tumour necrosis factor α. Proliferation rate was highly increased in TAFs and fibroblast cell lines used in our study, compared to MSCs, whereas ultrastructural details differentiated the two cell types by the presence of cytoplasmic elongations, lamellar content lysosomes and intermediate filaments. Our results provide supportive evidence to the fact that TAFs derive from MSCs and could be a subset of ‘specialized’ MSCs.
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Affiliation(s)
- Virgil Paunescu
- Department of Physiology, University of Medicine and Pharmacy Victor Babes Timisoara, Timisoara, Romania.
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Gruia AT, Barbu-Tudoran L, Mic AA, Ordodi VL, Paunescu V, Mic FA. Arachidonic acid accumulates in the stromal macrophages during thymus involution in diabetes. Histochem Cell Biol 2011; 136:79-92. [PMID: 21626126 DOI: 10.1007/s00418-011-0820-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/12/2011] [Indexed: 11/28/2022]
Abstract
Diabetes is a debilitating disease with chronic evolution that affects many tissues and organs over its course. Thymus is an organ that is affected early after the onset of diabetes, gradually involuting until it loses most of its thymocyte populations. We show evidence of accumulating free fatty acids with generation of eicosanoids in the diabetic thymus and we present a possible mechanism for the involution of the organ during the disease. Young rats were injected with streptozotocin and their thymuses examined for cell death by flow cytometry and TUNEL reaction. Accumulation of lipids in the diabetic thymus was investigated by histology and electron microscopy. The identity and quantitation of accumulating lipids was done with gas chromatography-mass spectrometry and liquid chromatography. The expression and dynamics of the enzymes were monitored via immunohistochemistry. Diabetes causes thymus involution by elevating the thymocyte apoptosis. Exposure of thymocytes to elevated concentration of glucose causes apoptosis. After the onset of diabetes, there is a gradual accumulation of free fatty acids in the stromal macrophages including arachidonic acid, the substrate for eicosanoids. The eicosanoids do not cause thymocyte apoptosis but administration of a cyclooxygenase inhibitor reduces the staining for ED1, a macrophage marker whose intensity correlates with phagocytic activity. Diabetes causes thymus involution that is accompanied by accumulation of free fatty acids in the thymic macrophages. Excess glucose is able to induce thymocyte apoptosis but eicosanoids are involved in the chemoattraction of macrophage to remove the dead thymocytes.
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Affiliation(s)
- Alexandra T Gruia
- Regional Center for Immunology and Transplant, Timisoara County Hospital, Timisoara, Romania
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35
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Badiu DC, Paunescu V, Aungurenci A, Pasarica D. Proinflammatory cytokines in peritonitis. J Med Life 2011; 4:158-62. [PMID: 21776298 PMCID: PMC3124274] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2011] [Accepted: 05/06/2011] [Indexed: 10/28/2022] Open
Abstract
RATIONALE We performed this study with the purpose of revealing different aspects of the systemic inflammatory response syndrome in peritonitis. OBJECTIVES The aim of the presentation was to make a research on some of the immune response mediators in secondary peritonitis and to observe their capacity to anticipate the evolution towards septic complications. METHODS AND RESULTS We have undertaken a study on a group of 100 patients with acute diffuse peritonitis, between 2009 and 2011, in which we have accomplished the dosage of IL-1 beta, IL-6 and TNF alpha cytokines in the serum of patients, in dynamics, for 7 days by using the Elisa method. Subsequently, we have compared the results to the ones of a control group. The data obtained indicated high levels of proinflammatory cytokines in the patients who subsequently suffered an unfavorable evolution towards septic complications. DISCUSSION The study of IL-1 beta, IL-6 and TNF alpha blood dynamics, offers valuable information about the severity of a systemic inflammatory response syndrome in peritonitis. They can be valuable biomarkers in establishing the unfavorable evolution of patients, helping the physician to establish a sustained and specific treatment, even from the early phases of the illness.
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Affiliation(s)
- DC Badiu
- ‘Carol Davila’ University of Medicine and Pharmacy, BucharestRomania
,General Surgery Department, ‘Bagdasar–Arseni’ Clinical Emergency Hospital, BucharestRomania
| | - V Paunescu
- ‘Carol Davila’ University of Medicine and Pharmacy, BucharestRomania
,General Surgery Department, ‘Bagdasar–Arseni’ Clinical Emergency Hospital, BucharestRomania
| | - A Aungurenci
- ‘Carol Davila’ University of Medicine and Pharmacy, BucharestRomania
| | - D Pasarica
- ‘Carol Davila’ University of Medicine and Pharmacy, BucharestRomania
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Deak E, Göttig S, Rüster B, Paunescu V, Seifried E, Gille J, Henschler R. Bone marrow derived cells in the tumour microenvironment contain cells with primitive haematopoietic phenotype. J Cell Mol Med 2009; 14:1946-52. [PMID: 19765171 PMCID: PMC3823276 DOI: 10.1111/j.1582-4934.2009.00908.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Infiltration of bone marrow derived cells is part of the angiogenic switch required for uncontrolled tumour growth. However, the nature of the tumour-infiltrating cells from bone marrow has not been fully elucidated. To investigate the phenotype of bone marrow derived cells within a tumour, we employed the Lewis lung carcinoma (LLC) murine tumour model. We followed bone marrow derivation of tumour-infiltrating cells through transplantation of CD45.2 bone marrow cells into pre-irradiated CD45.1 mice. We found robust CD45.2 donor type chimerism in bone marrow and blood of CD45.1 recipient tumour-bearing mice. Flow cytometric analysis of LLC tumours showed, in addition to previously described pro-angiogenic CD45+VEGFR2+‘endothelial progenitor cells’ (EPC), or CD45+Tie2+‘Tie2-expressing monocytes’ (TEM), incorporation of donor type lineage marker negative (Lin−) and Lin−Sca1+ undifferentiated haematopoietic cell types. Immunohistochemical analysis confirmed the extravasal location of the primitive haematopoietic cells. Flow-cytometric sorting of bone marrow cells and subsequent analysis in haematopoietic colony-forming assays revealed that cells with a Lin−Sca1+ phenotype, which were initially negative for VEGFR2 and Tie2, gave rise to VEGFR2+ and/or Tie2+ cells. Moreover, Lin− bone marrow cells pre-labelled with the membrane dye PKH26 (a red fluorochrome) and transplanted i.v. into tumour-bearing mice were found to extravasate and incorporate into LLC tumours within 24 hrs. Thus, primitive haematopoietic precursors which are thought to be precursors of EPC and TEMs, constitute a part of the tumour microenvironment. This makes them an attractive target cell population for tumour-directed cellular therapies.
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Affiliation(s)
- Erika Deak
- Stem Cell Biology Group, DRK Institute of Transfusion Medicine and Immune Hematology, Johann Wolfgang Goethe University, Frankfurt am Main, Germany
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37
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Ordodi VL, Paunescu V, Mic FA. Optimal access to the rat heart by transverse bilateral thoracotomy with double ligature of the internal thoracic arteries. J Am Assoc Lab Anim Sci 2008; 47:44-46. [PMID: 18947170 PMCID: PMC2691538] [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] [Received: 03/31/2008] [Revised: 05/01/2008] [Accepted: 05/24/2008] [Indexed: 05/27/2023]
Abstract
Rats are used widely in ischemia-reperfusion and other heart experiments, but current protocols for thoracotomy have serious shortcomings. Median sternotomy causes bleeding from sternum itself and the internal thoracic arteries, whereas left thoracotomy requires exteriorization of the heart and its reintroduction after completion of the procedure and often is complicated by traction or torsion of the cardiopulmonary bundle and atelectasis in the left lung. Here we describe a new, terminal procedure that minimizes blood loss and allows wide access to the heart without disturbing its anatomic position. Transverse thoracotomy, preferably through the fifth intercostal space, is performed after double ligature of both internal thoracic arteries 1 intercostal space above and 1 below the incision. Blood loss is minimal and occurs mainly with dissection of deep pectoral muscles and intercostal muscles, and the animal is better ventilated than with conventional protocols. We believe that our procedure is superior to existing techniques because it minimizes blood loss during intervention, does not disturb the anatomic position of the heart, and allows wide access to the organ for experimental manipulation.
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Affiliation(s)
- Valentin L Ordodi
- Department of Physiology, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania
| | - Virgil Paunescu
- Department of Physiology, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania
| | - Felix A Mic
- Department of Immunology, Clinical Emergency Hospital, Timisoara, Romania
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Abstract
Blood oxygenation devices are an essential component of any cardiopulomonary bypass circuit in various species of laboratory animals. When using larger animals like dogs or pigs, the human and pediatric blood oxygenators could be easily used, but the disadvantage of these species is the scarcity of biochemical and genetic assays for experimental follow-up. However, small rodents like rats have plenty of biochemical assays, but their size requires special oxygenators adapted for their small blood volume and often primed with blood of another animal or other physiological solution. We showed the new design of a blood oxygenator with direct blood-gas contact in an open circuit, specially designed for rats in which the blood oxygenation takes place in a slowly rotating plastic tube with blood spread onto its inner walls in a thin layer. The oxygenator is simple and efficient, does not require priming with the blood of another rat, has a small dead volume, is reusable, and easy to clean and sterilize.
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Affiliation(s)
- Valentin Laurentiu Ordodi
- Department of Physiology, University of Medicine and Pharmacy Victor Babes Timisoara, Timisoara, Romania
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39
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Mic AA, Mic FA, Tatu CA, Ionac M, Ordodi VL, Paunescu V. Indomethacin inhibits thymic involution in mice with streptozotocin-induced diabetes. Comp Med 2007; 57:476-481. [PMID: 17974130] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Diabetes is chronic disease that is accompanied by a rapid thymus involution. To investigate the factors responsible for thymic involution in a model of STZ-induced diabetes, mice were injected with STZ alone or in combination with the cyclooxygenase 2 inhibitor indomethacin (INDO). Thymus weight, glycemia and serum corticosterone were measured, and apoptosis in thymus and thymocyte cultures was analyzed by flow cytometry. Although earlier studies report that streptozotocin (STZ) is toxic to lymphoid tissues, in our experiments even massive doses of STZ did not negatively affect thymocyte cultures. Cultured thymocytes also seemed unaffected by high glucose concentrations, even after 24 h of exposure. Administration of INDO concomitantly with STZ reduced thymic involution but did not prevent the onset of hyperglycemia or reduce established hyperglycemia. When INDO was given before STZ, the same degree of thymic involution occurred; however, hyperglycemia was reduced, although normoglycemia was not restored. INDO also reduced serum corticosterone. Because thymocytes are known to be sensitive to glucocorticoids, this finding suggests that cyclooxygenase 2 inhibition may retard thymic involution by reducing serum glucocorticoids. In conclusion, our results show that STZ and hyperglycemia are not toxic to thymocytes and that cyclooxygenase 2-mediated mechanisms are involved in thymic involution during diabetes.
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Affiliation(s)
- Ani A Mic
- Department of Physiology, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania
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40
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Orem W, Tatu C, Pavlovic N, Bunnell J, Lerch H, Paunescu V, Ordodi V, Flores D, Corum M, Bates A. Health effects of toxic organic substances from coal: toward "panendemic" nephropathy. Ambio 2007; 36:98-102. [PMID: 17408200 DOI: 10.1579/0044-7447(2007)36[98:heotos]2.0.co;2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Affiliation(s)
- William Orem
- U S Geological Survey, Reston, Virginia 20192, USA
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Kemeny L, Koreck A, Kis K, Kenderessy-Szabo A, Bodai L, Cimpean A, Paunescu V, Raica M, Ghyczy M. Endogenous phospholipid metabolite containing topical product inhibits ultraviolet light-induced inflammation and DNA damage in human skin. Skin Pharmacol Physiol 2007; 20:155-61. [PMID: 17230055 DOI: 10.1159/000098702] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2006] [Accepted: 11/21/2006] [Indexed: 11/19/2022]
Abstract
BACKGROUND N-palmitoylethanolamine (PEA) and organic osmolytes are endogenous components of the human epidermis and are generated from phospholipids in the stratum granulosum. PEA has been shown to exert potent antioxidant and anti-inflammatory activities. The endogenous organic osmolytes such as betaine and sarcosine control skin humidity, but have also been shown to inhibit ultraviolet (UV) light-induced oxidative stress in keratinocytes. OBJECTIVES To investigate the effect of a PEA- and organic osmolyte-containing topical product (Physiogel AI) on the development of UV light-induced erythema, thymine dimer formation and p53 tumor suppressor gene activation, as well as intercellular adhesion molecule 1 (ICAM-1) and Ki67 expression in normal human skin. METHODS The UV-induced erythema was measured by a spectrofluorometric method. Thymine dimers, p53, ICAM-1 and Ki67 were detected in skin biopsies using immunohistochemistry. RESULTS Physiogel AI cream significantly inhibited the development of UV light-induced erythema and thymine dimer formation in normal human skin, but did not alter the number of Ki67+ proliferating keratinocytes and the expression of p53 and ICAM-1. CONCLUSIONS Our results suggest that PEA and organic osmolytes might represent a new generation of compounds which suppress UV-induced photodamage.
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Affiliation(s)
- L Kemeny
- Department of Dermatology and Allergology, University of Szeged, Szeged, Hungary.
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Abstract
Major experimental surgery on laboratory animals requires adequate anesthesia and ventilation to keep the animal alive throughout the procedure. A ventilator is a machine that helps the anesthesized animal breathe through an endotracheal tube by pumping a volume of gas (oxygen, air, or other gaseous mixtures), comparable with the normal tidal volume, into the animal's lungs. There are two main categories of ventilators for small laboratory rodents: volume-controlled and pressure-controlled ones. The volume-controlled ventilator injects a preset volume into the animal's lungs, no matter the airways' resistance (with the peak inspiratory pressure allowed to vary), while the pressure ventilator controls the inspiratory pressure and allows the inspiratory volume to vary. Here we show a rat pressure ventilator with a simple expiratory valve that allows gas delivery through electronic expiration control and offers easy pressure monitoring and frequency change during ventilation.
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Affiliation(s)
- Valentin L Ordodi
- Department of Physiology, University of Medicine and Pharmacy Victor Babes, Timisoara, Romania
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Ordodi VL, Paunescu V, Mischie S, Ignea A, Toma O, Ionac M, Mic AA, Sandesc D, Mic FA. Improved electrodes for electrical defibrillation of rats. J Am Assoc Lab Anim Sci 2006; 45:54-7. [PMID: 17089993] [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: 05/12/2023]
Abstract
Experimental induction of ventricular fibrillation in animals yields valuable information about this deadly arrhythmia. Human adult or pediatric defibrillators and their paddles can be used easily in larger animals such as dogs and pigs, but these animals are more difficult to house and handle, and available biochemical assays may be limited. In contrast, rats are easy and relatively inexpensive to house and handle, and numerous biochemical tests are available. However, in most cases, even pediatric electrodes are impractical for use in rats. Proper placement of defibrillation electrodes on the thorax requires that the electrical axis of the heart be situated between the defibrillator paddles. The most common approach to defibrillation in rats uses 2 electrodes: one is built into a board that underlies and touches the rat's back, and another is positioned manually on the anterior thorax. The aim of this study was to produce electrodes that are 1) easy to handle, 2) specifically designed for rats, 3) efficiently deliver defibrillation shocks along the electric axis of the heart, and 4) can be used for both in vivo defibrillation and on isolated heart preparations.
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Affiliation(s)
- Valentin L Ordodi
- Department of Physiology, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania
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Koreck A, Kis K, Szegedi K, Paunescu V, Cioaca R, Olariu R, Negru S, Bata-Csorgo Z, Kemeny L, Dobozy A, Szell M. TLR2 and TLR4 Polymorphisms Are Not Associated with Acne Vulgaris. Dermatology 2006; 213:267-9. [PMID: 17033191 DOI: 10.1159/000095057] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Affiliation(s)
- A Koreck
- Department of Dermatology and Allergology, University of Szeged, Szeged, Hungary.
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45
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Ordodi VL, Mic FA, Mic AA, Tanasie G, Ionac M, Sandesc D, Paunescu V. Bone marrow aspiration from rats: a minimally invasive procedure. Lab Anim (NY) 2006; 35:41-4. [PMID: 16645615 DOI: 10.1038/laban0506-41] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2006] [Accepted: 03/17/2006] [Indexed: 11/09/2022]
Affiliation(s)
- Valentin L Ordodi
- Department of Physiology, University of Medicine and Pharmacy Victor Babes, Timisoara, Romania
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46
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Cioca DP, Deak E, Cioca F, Paunescu V. Monoclonal Antibodies Targeted Against Melanoma and Ovarian Tumors Enhance Dendritic Cell-Mediated Cross-Presentation of Tumor-Associated Antigens and Efficiently Cross-Prime CD8+ T Cells. J Immunother 2006; 29:41-52. [PMID: 16365599 DOI: 10.1097/01.cji.0000175496.51594.8b] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Dendritic cells (DCs) constitute very attractive vectors for cancer immunotherapy due to their ability to efficiently capture and present tumor antigens, which initiates tumor-directed T-cell responses. Because the initiation of cytotoxic anti-tumor immune responses requires the cross-presentation mechanism, antigen targeting to DCs represents a very important step in the chain of events that constitutes the cross-priming immune process. In the current study, we explored the ability of DCs loaded with antibody-coated melanoma and ovarian carcinoma tumor cells to cross-present tumor antigens to CD8+ T cells and elicit in vitro anti-tumor immune responses. Coating melanoma and ovarian cancer cells with monoclonal antibodies against different surface antigens (CD44, ME491, LFA-3, and CD24) expressed by the tumor cells promoted the cross-presentation of the tumor-associated antigens as MART-1, gp100, tyrosinase, and NY-ESO-1 by DCs to CD8+ T. These tumor antigen-specific CD8+ T-cell populations resulting from the DC-mediated cross-priming process were identified using specific immune tetramers and were a few fold larger than the ones generated using peptide-pulsed or apoptotic tumor cell-loaded DCs. The CD8+ T cells generated by DCs loaded with monoclonal antibody-coated tumor cells were cytotoxic against the primary melanoma and ovarian carcinoma cells. Thus, targeting monoclonal antibody-coated tumor cells to DCs is a novel method that opens new perspectives for immunotherapy strategies.
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Affiliation(s)
- Daniel Petru Cioca
- Immunology Department, Timisoara Medical University, Timisoara, Romania.
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Abstract
Endotracheal intubation of rats is often necessary for lengthy survival surgeries, but the animal's small size and the lack of suitable equipment may complicate the procedure. The authors describe the construction and use of a simple device for the easy intubation of rats, requiring no expensive, specialized equipment.
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Affiliation(s)
- Valentin L Ordodi
- Department of Physiology, University of Medicine and Pharmacy Victor Babes, Timisoara, 2 Eftimie Murgu Square, Romania
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48
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Paunescu V, Suciu E, Tatu C, Plesa A, Herman D, Siska IR, Suciu C, Crisnic D, Nistor D, Tanasie G, Bunu C, Raica M. Endothelial cells from hematopoietic stem cells are functionally different from those of human umbilical vein. J Cell Mol Med 2004; 7:455-60. [PMID: 14754514 PMCID: PMC6740313 DOI: 10.1111/j.1582-4934.2003.tb00248.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Hematopoietic stem cells have a remarkable plastic capacity, which allows them to differentiate into various cells, such as immune cells, nervous cells, muscle cells, bone and cartilaginous cells. The aim of this study was to show the capacity of stem cells to differentiate into endothelial cells, in culture, after addition of endothelial cells growth supplement (ECGS). We also compared the behavior of these cells with that of endothelial cells obtained from human umbilical vein (HUVEC). CD34+ cells obtained by immunomagnetic separation from human umbilical cord and placental blood were used. After 12-15 days of culture in a medium containing ECGS, the cells showed morphological changes characteristic to endothelial cells and immunocytochemical analysis revealed the presence of CD31 surface antigen and von Willebrand factor. The flow-cytometric analysis of endothelial cells adhesion molecules (ECAM) showed that endothelial cells derived from CD34+ cells expressed CD54/ICAM-1 9.65+/-0.2% and CD106/VCAM 7.73+/-0.3%, values similar to those expressed by HUVECs. After TNF incubation, ECAM expression increased only in HUVECs. These data demonstrate that a fraction of circulating CD34+ cells may develop some endothelial cell characteristics when cultured with ECGS, but they are functionally different from HUVECs.
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Affiliation(s)
- V Paunescu
- Department of Physiology and Immunology, "Victor Babes" University of Medicine and Pharmacy, Timisoara, Romania.
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49
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Crisnic D, Ordodi V, Hadaruga D, Todea A, Paunescu V, Negru S. Doxorubicin Depuration in Oncological Wastewaters Using an Electrochemical Method. Rev Chim 2001. [DOI: 10.37358/rc.20.3.7984] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Doxorubicin is a powerful antineoplastic antibiotic used in modern oncological treatments, constitute noteworthy environmental hazards with a great long-term impact on human health. This paper introduces an electrochemical method with aasymmetric current density laboratory reactor specifically designed to neutralize cytostatic agents from wastewaters. The reactor is based on the principle of anodic electrooxidationand on chemical oxidation via anode-generated chlorine reactive species. The design of this electrochemical reactor facilitates very good (approx. 99%) neutralization yields for the substance used in this study.
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Abstract
We previously reported the detection of an increased subpopulation of cytotoxic T lymphocytes in patients with Balkan (endemic) nephropathy (BEN) and in area controls (individuals free of clinical syndrome but born in a BEN endemic area and having a family history of BEN). Extending the flow-cytometric analyses to other populations of peripheral blood leucocytes, we found a decrease in the proportion of B lymphocyte subset and an increased proportion of eosinophils in BEN patients and in area controls. Although these numerical alterations cannot be categorically linked to the aetiopathogeny of the disease, it is presumed that they can be induced by the same factor(s) causing the kidney damage, through a direct haemato- and lymphotoxic effect.
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Affiliation(s)
- C A Tatu
- Forslys Group, Timisoara, Romania
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