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Rakonjac M, Cuturilo G, Kovacevic-Grujicic N, Simeunovic I, Kostic J, Stevanovic M, Drakulic D. Speech Sounds Production, Narrative Skills, and Verbal Memory of Children with 22q11.2 Microdeletion. Children (Basel) 2024; 11:489. [PMID: 38671706 PMCID: PMC11049265 DOI: 10.3390/children11040489] [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] [Subscribe] [Scholar Register] [Received: 02/25/2024] [Revised: 04/08/2024] [Accepted: 04/15/2024] [Indexed: 04/28/2024]
Abstract
22q11.2 deletion syndrome (22q11.2DS), the most frequent microdeletion syndrome in humans, is related to a high risk of developing neurodevelopmental disorders. About 95% of patients with 22q11.2DS have speech and language impairments. Global articulation, story generation, and verbal memory tests were applied to compare articulatory characteristics of speech sounds, spontaneous language abilities, and immediate verbal memory between four groups of Serbian-speaking children: patients with 22q11.2DS, children with clinical presentation of 22q11.2DS that do not have the microdeletion, children with non-syndromic congenital heart defects, and their peers with typical speech-sound development. The obtained results showed that children with this microdeletion have impaired articulation skills and expressive language abilities. However, we did not observe weaker receptive language skills and immediate verbal memory compared to healthy controls. Children with 22q11.2DS should be considered a risk category for the development of speech-sound pathology and expressive language abilities. Since speech intelligibility is an instrument of cognition and adequate peer socialization, and language impairment in school-aged children with 22q11DS might be an indicator of increased risk for later psychotic symptoms, patients with 22q11.2 microdeletion should be included in a program of early stimulation of speech-language development immediately after diagnosis is established.
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Affiliation(s)
- Marijana Rakonjac
- Institute for Experimental Phonetics and Speech Pathology, Jovanova 35, 11000 Belgrade, Serbia;
| | - Goran Cuturilo
- Faculty of Medicine, University of Belgrade, Dr Subotica 8, 11000 Belgrade, Serbia;
- University Children’s Hospital, Tirsova 10, 11000 Belgrade, Serbia
| | - Natasa Kovacevic-Grujicic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042 Belgrade, Serbia; (N.K.-G.); (I.S.); (J.K.); (M.S.)
| | - Ivana Simeunovic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042 Belgrade, Serbia; (N.K.-G.); (I.S.); (J.K.); (M.S.)
| | - Jovana Kostic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042 Belgrade, Serbia; (N.K.-G.); (I.S.); (J.K.); (M.S.)
| | - Milena Stevanovic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042 Belgrade, Serbia; (N.K.-G.); (I.S.); (J.K.); (M.S.)
- Faculty of Biology, University of Belgrade, Studentski trg 16, 11000 Belgrade, Serbia
- Serbian Academy of Sciences and Arts, Kneza Mihaila 35, 11000 Belgrade, Serbia
| | - Danijela Drakulic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042 Belgrade, Serbia; (N.K.-G.); (I.S.); (J.K.); (M.S.)
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2
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Balint V, Peric M, Dacic S, Stanisavljevic Ninkovic D, Marjanovic J, Popovic J, Stevanovic M, Lazic A. The Role of SOX2 and SOX9 Transcription Factors in the Reactivation-Related Functional Properties of NT2/D1-Derived Astrocytes. Biomedicines 2024; 12:796. [PMID: 38672150 PMCID: PMC11048103 DOI: 10.3390/biomedicines12040796] [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: 12/27/2023] [Revised: 03/18/2024] [Accepted: 03/26/2024] [Indexed: 04/28/2024] Open
Abstract
Astrocytes are the main homeostatic cells in the central nervous system, with the unique ability to transform from quiescent into a reactive state in response to pathological conditions by reacquiring some precursor properties. This process is known as reactive astrogliosis, a compensatory response that mediates tissue damage and recovery. Although it is well known that SOX transcription factors drive the expression of phenotype-specific genetic programs during neurodevelopment, their roles in mature astrocytes have not been studied extensively. We focused on the transcription factors SOX2 and SOX9, shown to be re-expressed in reactive astrocytes, in order to study the reactivation-related functional properties of astrocytes mediated by those proteins. We performed an initial screening of SOX2 and SOX9 expression after sensorimotor cortex ablation injury in rats and conducted gain-of-function studies in vitro using astrocytes derived from the human NT2/D1 cell line. Our results revealed the direct involvement of SOX2 in the reacquisition of proliferation in mature NT2/D1-derived astrocytes, while SOX9 overexpression increased migratory potential and glutamate uptake in these cells. Our results imply that modulation of SOX gene expression may change the functional properties of astrocytes, which holds promise for the discovery of potential therapeutic targets in the development of novel strategies for tissue regeneration and recovery.
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Affiliation(s)
- Vanda Balint
- Laboratory for Human Molecular Genetics, Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042 Belgrade, Serbia; (V.B.); (M.P.); (D.S.N.); (J.M.); (J.P.); (M.S.)
| | - Mina Peric
- Laboratory for Human Molecular Genetics, Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042 Belgrade, Serbia; (V.B.); (M.P.); (D.S.N.); (J.M.); (J.P.); (M.S.)
| | - Sanja Dacic
- Institute of Physiology and Biochemistry “Ivan Djaja”, Faculty of Biology, University of Belgrade, Studentski trg 16, 11158 Belgrade, Serbia;
| | - Danijela Stanisavljevic Ninkovic
- Laboratory for Human Molecular Genetics, Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042 Belgrade, Serbia; (V.B.); (M.P.); (D.S.N.); (J.M.); (J.P.); (M.S.)
| | - Jelena Marjanovic
- Laboratory for Human Molecular Genetics, Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042 Belgrade, Serbia; (V.B.); (M.P.); (D.S.N.); (J.M.); (J.P.); (M.S.)
| | - Jelena Popovic
- Laboratory for Human Molecular Genetics, Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042 Belgrade, Serbia; (V.B.); (M.P.); (D.S.N.); (J.M.); (J.P.); (M.S.)
| | - Milena Stevanovic
- Laboratory for Human Molecular Genetics, Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042 Belgrade, Serbia; (V.B.); (M.P.); (D.S.N.); (J.M.); (J.P.); (M.S.)
- Institute of Physiology and Biochemistry “Ivan Djaja”, Faculty of Biology, University of Belgrade, Studentski trg 16, 11158 Belgrade, Serbia;
- Serbian Academy of Sciences and Arts, Kneza Mihaila 35, 11001 Belgrade, Serbia
| | - Andrijana Lazic
- Laboratory for Human Molecular Genetics, Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042 Belgrade, Serbia; (V.B.); (M.P.); (D.S.N.); (J.M.); (J.P.); (M.S.)
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3
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Vojnovic S, Aleksic I, Ilic-Tomic T, Stevanovic M, Nikodinovic-Runic J. Bacillus and Streptomyces spp. as hosts for production of industrially relevant enzymes. Appl Microbiol Biotechnol 2024; 108:185. [PMID: 38289383 PMCID: PMC10827964 DOI: 10.1007/s00253-023-12900-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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 11/28/2023] [Accepted: 12/05/2023] [Indexed: 02/01/2024]
Abstract
The application of enzymes is expanding across diverse industries due to their nontoxic and biodegradable characteristics. Another advantage is their cost-effectiveness, reflected in reduced processing time, water, and energy consumption. Although Gram-positive bacteria, Bacillus, and Streptomyces spp. are successfully used for production of industrially relevant enzymes, they still lag far behind Escherichia coli as hosts for recombinant protein production. Generally, proteins secreted by Bacillus and Streptomyces hosts are released into the culture medium; their native conformation is preserved and easier recovery process enabled. Given the resilience of both hosts in harsh environmental conditions and their spore-forming capability, a deeper understanding and broader use of Bacillus and Streptomyces as expression hosts could significantly enhance the robustness of industrial bioprocesses. This mini-review aims to compare two expression hosts, emphasizing their specific advantages in industrial surroundings such are chemical, detergent, textile, food, animal feed, leather, and paper industries. The homologous sources, heterologous hosts, and molecular tools used for the production of recombinant proteins in these hosts are discussed. The potential to use both hosts as biocatalysts is also evaluated. Undoubtedly, Bacillus and Streptomyces spp. as production hosts possess the potential to take on a more substantial role, providing superior (bio-based) process robustness and flexibility. KEY POINTS: • Bacillus and Streptomyces spp. as robust hosts for enzyme production. • Industrially relevant enzyme groups for production in alternative hosts highlighted. • Molecular biology techniques are enabling easier utilization of both hosts.
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Affiliation(s)
- Sandra Vojnovic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042, Belgrade 152, Serbia.
| | - Ivana Aleksic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042, Belgrade 152, Serbia
| | - Tatjana Ilic-Tomic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042, Belgrade 152, Serbia
| | - Milena Stevanovic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042, Belgrade 152, Serbia
| | - Jasmina Nikodinovic-Runic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042, Belgrade 152, Serbia.
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4
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Özcan E, Vagolu SK, Gündüz MG, Stevanovic M, Kökbudak Z, Tønjum T, Nikodinovic-Runic J, Çetinkaya Y, Doğan ŞD. Novel Quinoline-Based Thiosemicarbazide Derivatives: Synthesis, DFT Calculations, and Investigation of Antitubercular, Antibacterial, and Antifungal Activities. ACS Omega 2023; 8:40140-40152. [PMID: 37929089 PMCID: PMC10620885 DOI: 10.1021/acsomega.3c03018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Accepted: 09/12/2023] [Indexed: 11/07/2023]
Abstract
The discovery of new antimicrobial agents as a means of treating drug-resistant microbial pathogens is of utmost significance to overcome their immense risk to human well-being. The current investigation involves the development, synthesis, and assessment of the antimicrobial efficacy of novel quinoline derivatives incorporating a thiosemicarbazide functionality. To design the target compounds (QST1-QST14), we applied the molecular hybridization approach to link various thiosemicarbazides to the quinoline core with a sulfonyl group. Upon the synthesis and completion of structural characterization via spectroscopic techniques (1H NMR, 13C NMR, 15N NMR, IR, and HRMS), the title molecules were extensively evaluated for their potential antitubercular, antibacterial, and antifungal activities. N-(3-Chlorophenyl)-2-(quinolin-8-ylsulfonyl)hydrazine-1-carbothioamide (QST4), the most effective compound against Mycobacterium tuberculosis H37Rv, was also tested on isoniazid-resistant clinical isolates with katG and inhA promoter mutations. Based on molecular docking studies, QST4 was also likely to demonstrate its antimycobacterial activity through inhibition of the InhA enzyme. Furthermore, three derivatives (QST3, QST4, and QST10) with preferable antimicrobial and drug-like profiles were also shown to be nontoxic against human embryonic kidney (HEK) cells. All compounds were optimized by the density functional theory method using B3LYP with the 6-31+G(d,p) basis set. Structural analysis, natural bond orbital calculations of donor-acceptor interactions, molecular electrostatic potential analysis, and frontier molecular orbital analysis were carried out. Quantum chemical descriptors and charges on the atoms were determined to compare the strengths of the intramolecular hydrogen bonds formed and their stabilities. We determined that the sulfur atom forms a stronger intramolecular hydrogen bond than the nitrogen, oxygen, and fluorine atoms in these sulfonyl thiosemicarbazide derivatives.
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Affiliation(s)
- Esma Özcan
- Department
of Chemistry, Faculty of Science, Erciyes
University, 38039 Kayseri, Turkey
- Department
of Basic Sciences, Faculty of Pharmacy, Erciyes University, 38039 Kayseri, Turkey
| | - Siva Krishna Vagolu
- Unit
for Genome Dynamics, Department of Microbiology, University of Oslo, 0316 Oslo, Norway
| | - Miyase Gözde Gündüz
- Department
of Pharmaceutical Chemistry, Faculty of Pharmacy, Hacettepe University, Sıhhiye, 06100 Ankara, Turkey
| | - Milena Stevanovic
- Institute
of Molecular Genetics and Genetic Engineering, University of Belgrade, 11000 Belgrade, Serbia
| | - Zülbiye Kökbudak
- Department
of Chemistry, Faculty of Science, Erciyes
University, 38039 Kayseri, Turkey
| | - Tone Tønjum
- Unit
for Genome Dynamics, Department of Microbiology, University of Oslo, 0316 Oslo, Norway
- Unit for
Genome Dynamics, Department of Microbiology, Oslo University Hospital, 0316 Oslo, Norway
| | - Jasmina Nikodinovic-Runic
- Institute
of Molecular Genetics and Genetic Engineering, University of Belgrade, 11000 Belgrade, Serbia
| | - Yasin Çetinkaya
- Department
of Chemistry, Faculty of Science, Atatürk
University, 25240 Erzurum, Turkey
| | - Şengül Dilem Doğan
- Department
of Basic Sciences, Faculty of Pharmacy, Erciyes University, 38039 Kayseri, Turkey
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5
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Milzarek TM, Stevanovic M, Milivojevic D, Vojnovic S, Iliasov D, Wolf D, Mascher T, Nikodinovic-Runic J, Gulder TAM. Antibiotic Potential of the Ambigol Cyanobacterial Natural Product Class and Simplified Synthetic Analogs. ACS Infect Dis 2023; 9:1941-1948. [PMID: 37655776 DOI: 10.1021/acsinfecdis.3c00232] [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] [Indexed: 09/02/2023]
Abstract
The ambigols are cyanobacterial natural products characterized by three polychlorinated aromatic building blocks connected by biaryl and biaryl ether bridges. All ambigols known to date possess promising biological activities. Most significantly, ambigol A was reported to have antibacterial activity against Gram-positive bacteria, such as Bacillus megaterium and B. subtilis. We established a diverse compound library for in-depth biological evaluation building on our previous bio- and total synthetic research on this natural product family. To explore the antimicrobial potential in detail and to determine initial structure-activity relationships of this product class, a large set of dimeric and trimeric compounds were screened against selected bacterial and Candida target strains. Our results reveal exceptional antibiotic activity of the ambigols, especially against challenging clinical isolates.
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Affiliation(s)
- Tobias M Milzarek
- Chair of Technical Biochemistry, Technische Universität Dresden, Bergstraße 66, 01069 Dresden, Germany
| | - Milena Stevanovic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11000 Belgrade, Serbia
| | - Dusan Milivojevic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11000 Belgrade, Serbia
| | - Sandra Vojnovic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11000 Belgrade, Serbia
| | - Denis Iliasov
- Chair of General Microbiology, Technische Universität Dresden, Zellescher Weg 20b, 01217 Dresden, Germany
| | - Diana Wolf
- Chair of General Microbiology, Technische Universität Dresden, Zellescher Weg 20b, 01217 Dresden, Germany
| | - Thorsten Mascher
- Chair of General Microbiology, Technische Universität Dresden, Zellescher Weg 20b, 01217 Dresden, Germany
| | - Jasmina Nikodinovic-Runic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11000 Belgrade, Serbia
| | - Tobias A M Gulder
- Chair of Technical Biochemistry, Technische Universität Dresden, Bergstraße 66, 01069 Dresden, Germany
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Department of Natural Product Biotechnology, Helmholtz Centre for Infection Research (HZI), Saarland University, 66123 Saarbrücken, Germany
- Department of Pharmacy, Saarland University, 66123 Saarbrücken, Germany
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6
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Stevanovic M, Kovacevic-Grujicic N, Petrovic I, Drakulic D, Milivojevic M, Mojsin M. Crosstalk between SOX Genes and Long Non-Coding RNAs in Glioblastoma. Int J Mol Sci 2023; 24:ijms24076392. [PMID: 37047365 PMCID: PMC10094781 DOI: 10.3390/ijms24076392] [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] [Received: 01/31/2023] [Revised: 03/17/2023] [Accepted: 03/23/2023] [Indexed: 03/31/2023] Open
Abstract
Glioblastoma (GBM) continues to be the most devastating primary brain malignancy. Despite significant advancements in understanding basic GBM biology and enormous efforts in developing new therapeutic approaches, the prognosis for most GBM patients remains poor with a median survival time of 15 months. Recently, the interplay between the SOX (SRY-related HMG-box) genes and lncRNAs (long non-coding RNAs) has become the focus of GBM research. Both classes of molecules have an aberrant expression in GBM and play essential roles in tumor initiation, progression, therapy resistance, and recurrence. In GBM, SOX and lncRNAs crosstalk through numerous functional axes, some of which are part of the complex transcriptional and epigenetic regulatory mechanisms. This review provides a systematic summary of current literature data on the complex interplay between SOX genes and lncRNAs and represents an effort to underscore the effects of SOX/lncRNA crosstalk on the malignant properties of GBM cells. Furthermore, we highlight the significance of this crosstalk in searching for new biomarkers and therapeutic approaches in GBM treatment.
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7
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Velevska I, Aleksov J, Mihajloska E, Dimkovski A, Panovska-Stavridis I, Stevanovic M, Grozdanova A. Use of tocilizumab for treatment of COVID-19 from off-label to extended indication. Maced Pharm Bull 2022. [DOI: 10.33320/maced.pharm.bull.2022.68.03.277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Affiliation(s)
- Iskra Velevska
- Faculty of Pharmacy, University “Ss Cyril and Methodius”, Mother Theresa 47, 1000 Skopje, Republic of N. Macedonia
| | - Jovana Aleksov
- Faculty of Pharmacy, University “Ss Cyril and Methodius”, Mother Theresa 47, 1000 Skopje, Republic of N. Macedonia
| | - Evgenija Mihajloska
- Faculty of Pharmacy, University “Ss Cyril and Methodius”, Mother Theresa 47, 1000 Skopje, Republic of N. Macedonia
| | - Aleksandar Dimkovski
- Faculty of Pharmacy, University “Ss Cyril and Methodius”, Mother Theresa 47, 1000 Skopje, Republic of N. Macedonia
| | - Irina Panovska-Stavridis
- University Clinic of Hematology, Faculty of Medicine, Ss. Cyril and Methodius University in Skopje, Mother Tereza 47, 1000 Skopje, R.N. Macedonia
| | - Milena Stevanovic
- University Clinic of Infection Diseases and Febrile Conditions, Faculty of Medicine, Ss. Cyril and Methodius University in Skopje, Mother Tereza 47, 1000 Skopje, R.N. Macedonia
| | - Aleksandra Grozdanova
- Faculty of Pharmacy, University “Ss Cyril and Methodius”, Mother Theresa 47, 1000 Skopje, Republic of N. Macedonia
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8
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Garcia EL, Mojicevic M, Milivojevic D, Aleksic I, Vojnovic S, Stevanovic M, Murray J, Attallah OA, Devine D, Fournet MB. Enhanced Antimicrobial Activity of Biocompatible Bacterial Cellulose Films via Dual Synergistic Action of Curcumin and Triangular Silver Nanoplates. Int J Mol Sci 2022; 23:ijms232012198. [PMID: 36293056 PMCID: PMC9603523 DOI: 10.3390/ijms232012198] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 10/05/2022] [Accepted: 10/10/2022] [Indexed: 11/16/2022] Open
Abstract
Curcumin and triangular silver nanoplates (TSNP)-incorporated bacterial cellulose (BC) films present an ideal antimicrobial material for biomedical applications as they afford a complete set of requirements, including a broad range of long-lasting potency and superior efficacy antimicrobial activity, combined with low toxicity. Here, BC was produced by Komagataeibacter medellinensis ID13488 strain in the presence of curcumin in the production medium (2 and 10%). TSNP were incorporated in the produced BC/curcumin films using ex situ method (21.34 ppm) and the antimicrobial activity was evaluated against Escherichia coli ATCC95922 and Staphylococcus aureus ATCC25923 bacterial strains. Biological activity of these natural products was assessed in cytotoxicity assay against lung fibroblasts and in vivo using Caenorhabditis elegans and Danio rerio as model organisms. Derived films have shown excellent antimicrobial performance with growth inhibition up to 67% for E. coli and 95% for S. aureus. In a highly positive synergistic interaction, BC films with 10% curcumin and incorporated TSNP have shown reduced toxicity with 80% MRC5 cells survival rate. It was shown that only 100% concentrations of film extracts induce low toxicity effect on model organisms’ development. The combined and synergistic advanced anti-infective functionalities of the curcumin and TSNP incorporated in BC have a high potential for development for application within the clinical setting.
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Affiliation(s)
- Eduardo Lanzagorta Garcia
- Materials Research Institute, Technological University of the Shannon: Midlands Midwest, N37 HD68 Athlone, Ireland
| | - Marija Mojicevic
- Materials Research Institute, Technological University of the Shannon: Midlands Midwest, N37 HD68 Athlone, Ireland
- Correspondence: ; Tel.: +353-877-772-272
| | - Dusan Milivojevic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11000 Belgrade, Serbia
| | - Ivana Aleksic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11000 Belgrade, Serbia
| | - Sandra Vojnovic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11000 Belgrade, Serbia
| | - Milena Stevanovic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11000 Belgrade, Serbia
| | - James Murray
- Materials Research Institute, Technological University of the Shannon: Midlands Midwest, N37 HD68 Athlone, Ireland
| | - Olivia Adly Attallah
- Materials Research Institute, Technological University of the Shannon: Midlands Midwest, N37 HD68 Athlone, Ireland
| | - Declan Devine
- Materials Research Institute, Technological University of the Shannon: Midlands Midwest, N37 HD68 Athlone, Ireland
| | - Margaret Brennan Fournet
- Materials Research Institute, Technological University of the Shannon: Midlands Midwest, N37 HD68 Athlone, Ireland
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9
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Grubovic Rastvorceva RM, Useini S, Stevanovic M, Demiri I, Petkovic E, Franchini M, Focosi D. Efficacy and Safety of COVID-19 Convalescent Plasma in Hospitalized Patients-An Open-Label Phase II Clinical Trial. Life (Basel) 2022; 12:1565. [PMID: 36295001 PMCID: PMC9605182 DOI: 10.3390/life12101565] [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: 09/07/2022] [Revised: 09/14/2022] [Accepted: 09/27/2022] [Indexed: 01/24/2023] Open
Abstract
Background: COVID-19 convalescent plasma (CCP) is an important antiviral option for selected patients with COVID-19. Materials and Methods: In this open-label, phase 2, clinical trial conducted from 30 April 2020 till 10 May 2021 in the Republic of North Macedonia, we evaluated the efficacy and safety of CCP in hospitalized patients. Treatment was with a single unit of CCP having an anti-RBD IgG concentration higher than 5 AU/mL. Results: There were 189 patients that completed the study, of which 65 (34.4%) had WHO 8-point clinical progression scale score of 3 (requiring hospital care but not oxygen support), 65 (34.4%) had a score of 4 (hospitalized and requiring supplemental oxygen by mask or nasal prongs), and 59 (31.2%) had a score of 5 (hospitalized and requiring supplemental oxygen by non-invasive ventilation or high-flow oxygen). Mean age was 57 years (range 22−94), 78.5% were males, 80.4% had elevated body mass index, and 70.9% had comorbidity. Following CCP transfusion, we observed clinical improvement with increase rates in oxygenation-free days of 32.3% and 58.5% at 24 h and seven days after CCP transfusion, a decline in WHO scores, and reduced progression to severe disease (only one patient was admitted to ICU after CCP transfusion). Mortality in the entire cohort was 11.6% (22/189). We recorded 0% mortality in WHO score 3 (0/65) and in patients that received CCP transfusion in the first seven days of disease, 4.6% mortality in WHO score 4 (3/65), and 30.5% mortality in WHO score 5 (18/59). Mortality correlated with WHO score (Chi-square 19.3, p < 0.001) and with stay in the ICU (Chi-square 55.526, p ≤ 0.001). No severe adverse events were reported. Conclusions: This study showed that early administration of CCP to patients with moderate disease was a safe and potentially effective treatment for hospitalized COVID-19 patients. The trial was registered at clinicaltrials.gov (NCT04397523).
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Affiliation(s)
- Rada M. Grubovic Rastvorceva
- Institute for Transfusion Medicine of RNM, 1000 Skopje, North Macedonia
- Faculty of Medical Sciences, University Goce Delcev, 2000 Stip, North Macedonia
| | - Sedula Useini
- Institute for Transfusion Medicine of RNM, 1000 Skopje, North Macedonia
| | - Milena Stevanovic
- University Clinic for Infectious Diseases, 1000 Skopje, North Macedonia
| | - Ilir Demiri
- University Clinic for Infectious Diseases, 1000 Skopje, North Macedonia
| | - Elena Petkovic
- Institute for Transfusion Medicine of RNM, 1000 Skopje, North Macedonia
| | | | - Daniele Focosi
- North-Western Tuscany Blood Bank, Pisa University Hospital, 56124 Pisa, Italy
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10
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Matłosz B, Skrzat-Klapaczyńska A, Antoniak S, Balayan T, Begovac J, Dragovic G, Gusev D, Jevtovic D, Jilich D, Aimla K, Lakatos B, Matulionyte R, Panteleev A, Papadopoulos A, Rukhadze N, Sedláček D, Stevanovic M, Vassilenko A, Verhaz A, Yancheva N, Yurin O, Horban A, Kowalska JD. Chronic Kidney Disease and Nephrology Care in People Living with HIV in Central/Eastern Europe and Neighbouring Countries-Cross-Sectional Analysis from the ECEE Network. Int J Environ Res Public Health 2022; 19:12554. [PMID: 36231850 PMCID: PMC9565150 DOI: 10.3390/ijerph191912554] [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] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 09/27/2022] [Accepted: 09/27/2022] [Indexed: 06/16/2023]
Abstract
Chronic kidney disease (CKD) is a significant cause of morbidity and mortality among patients infected with human immunodeficiency virus (HIV). The Central and East Europe (CEE) region consists of countries with highly diversified HIV epidemics, health care systems and socioeconomic status. The aim of the present study was to describe variations in CKD burden and care between countries. The Euroguidelines in the CEE Network Group includes 19 countries and was initiated to improve the standard of care for HIV infection in the region. Information on kidney care in HIV-positive patients was collected through online surveys sent to all members of the Network Group. Almost all centres use regular screening for CKD in all HIV (+) patients. Basic diagnostic tests for kidney function are available in the majority of centres. The most commonly used method for eGFR calculation is the Cockcroft-Gault equation. Nephrology consultation is available in all centres. The median frequency of CKD was 5% and the main cause was comorbidity. Haemodialysis was the only modality of treatment for kidney failure available in all ECEE countries. Only 39% of centres declared that all treatment options are available for HIV+ patients. The most commonly indicated barrier in kidney care was patients' noncompliance. In the CEE region, people living with HIV have full access to screening for kidney disease but there are important limitations in treatment. The choice of dialysis modality and access to kidney transplantation are limited. The main burden of kidney disease is unrelated to HIV infection. Patient care can be significantly improved by addressing noncompliance.
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Affiliation(s)
- Bartłomiej Matłosz
- HIV Outpatient Clinic, Hospital for Infectious Diseases, Medical University of Warsaw, 02-091 Warszawa, Poland
| | - Agata Skrzat-Klapaczyńska
- Department of Adults’ Infectious Diseases, Hospital for Infectious Diseases, Medical University of Warsaw, 02-091 Warszawa, Poland
| | - Sergii Antoniak
- Viral Hepatitis and AIDS Department, Gromashevsky Institute of Epidemiology and Infectious Diseases, 01001 Kyiv, Ukraine
| | - Tatevik Balayan
- National Center for Disease Control and Prevention, Yerevan 0002, Armenia
| | - Josip Begovac
- School of Medicine, University Hospital for Infectious Diseases, University of Zagreb, 10000 Zagreb, Croatia
| | - Gordana Dragovic
- Department of Pharmacology, Clinical Pharmacology and Toxicology, School of Medicine, University of Belgrade, 11000 Belgrade, Serbia
| | - Denis Gusev
- Botkin’s Infectious Disease Hospital, First Saint-Petersburg State Medical University Named after I.P. Pavlov, 197022 Saint-Petersburg, Russia
| | - Djordje Jevtovic
- Infectious Disease Hospital, Belgrade University School of Medicine, 11000 Belgrade, Serbia
| | - David Jilich
- Department of Infectious Diseases, 1st Faculty of Medicine, Charles University in Prague and Faculty Hospital Bulovka Hospital, 18000 Prague, Czech Republic
| | - Kerstin Aimla
- West Tallinn Central Hospital, 10111 Tallinn, Estonia
| | - Botond Lakatos
- National Institute of Hematology and Infectious Diseases, South-Pest Central Hospital, National Center of HIV, 1007 Budapest, Hungary
| | - Raimonda Matulionyte
- Faculty of Medicine, Vilnius University, Vilnius University Hospital Santaros Klinikos, 08410 Vilnius, Lithuania
| | | | - Antonios Papadopoulos
- University General Hospital Attikon, Medical School, National and Kapodistrian University of Athens, 15772 Athens, Greece
| | - Nino Rukhadze
- Infectious Diseases, AIDS and Clinical Immunology Center, 112482 Tblisi, Georgia
| | - Dalibor Sedláček
- Faculty of Medicine in Plzeň, University Hospital Plzeň, Charles University, 30599 Plzen, Czech Republic
| | - Milena Stevanovic
- University Clinic for Infectious Diseases and Febrile Conditions, 1000 Skopje, North Macedonia
| | - Anna Vassilenko
- Global Fund Grant Management Department, Republican Scientific and Practical Center for Medical Technologies, 220004 Minsk, Belarus
| | - Antonija Verhaz
- Department for Infectious Diseases, Faculty of Medicine, University of Banja Luka, 78 000 Banja Luka, Republika Srpska, Bosnia and Herzegovina
| | - Nina Yancheva
- Department for AIDS, Specialized Hospital for Active Treatment of Infectious and Parasitic Disease, 1000 Sofia, Bulgaria
| | - Oleg Yurin
- Central Research Institute of Epidemiology, Federal AIDS Centre, 101000 Moscow, Russia
| | - Andrzej Horban
- Department of Adults’ Infectious Diseases, Hospital for Infectious Diseases, Medical University of Warsaw, 02-091 Warszawa, Poland
| | - Justyna D. Kowalska
- Department of Adults’ Infectious Diseases, Hospital for Infectious Diseases, Medical University of Warsaw, 02-091 Warszawa, Poland
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Stevanovic M, D'Agostino PM, Mojicevic M, Gulder TAM, Nikodinovic-Runic J, Vojnovic S. Streptomyces sp. BV410: Interspecies cross-talk for staurosporine production. J Appl Microbiol 2022; 133:2560-2568. [PMID: 35880373 DOI: 10.1111/jam.15726] [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: 05/07/2022] [Revised: 07/15/2022] [Accepted: 07/20/2022] [Indexed: 11/25/2022]
Abstract
AIMS Sequencing and genome analysis of two co-isolated streptomycetes, named BV410-1 and BV410-10, and the effect of their co-cultivation on the staurosporine production. METHODS AND RESULTS Identification of two strains through genome sequencing and their separation using different growth media was conducted. Sequence analysis revealed that the genome of BV410-1 was 9.5 Mb, whilst that of BV410-10 was 7.1 Mb. AntiSMASH analysis identified 28 biosynthetic gene clusters (BGCs) from BV410-1, including that responsible for staurosporine biosynthesis, whilst 20 BGCs were identified from BV410-10. The addition of cell-free supernatant from BV410-10 monoculture to BV410-1 fermentations improved the staurosporine yield from 8.35 mg L-1 up to 15.85 mg L-1 , whilst BV410-10 monoculture ethyl acetate extract did not have the same effect. Also, there was no improvement in staurosporine production when artificial mixed cultures were created using three different BV410-1 and BV410-10 spore ratios. CONCLUSIONS The growth of BV410-10 was inhibited when the two strains were grown together on agar plates. Culture supernatants of BV410-10 showed potential to stimulate staurosporine production in BV410-1, but overall co-cultivation attempts did not restore the previously reported yield of staurosporine produced by the original mixed isolate. SIGNIFICANCE AND IMPACT OF STUDY This work confirmed complex relations between streptomycetes in soil that are difficult to recreate under the laboratory conditions. Also, mining of streptomycetes genomes that mainly produce known bioactive compounds could still be the fruitful approach in search for novel bioactive molecules.
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Affiliation(s)
- Milena Stevanovic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, Serbia
| | - Paul M D'Agostino
- Technische Universität Dresden, Chair of Technical Biochemistry, Dresden, Germany
| | - Marija Mojicevic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, Serbia
| | - Tobias A M Gulder
- Technische Universität Dresden, Chair of Technical Biochemistry, Dresden, Germany
| | | | - Sandra Vojnovic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, Serbia
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12
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Lazic A, Balint V, Stanisavljevic Ninkovic D, Peric M, Stevanovic M. Reactive and Senescent Astroglial Phenotypes as Hallmarks of Brain Pathologies. Int J Mol Sci 2022; 23:ijms23094995. [PMID: 35563385 PMCID: PMC9100382 DOI: 10.3390/ijms23094995] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 04/23/2022] [Accepted: 04/27/2022] [Indexed: 02/06/2023] Open
Abstract
Astrocytes, as the most abundant glial cells in the central nervous system, are tightly integrated into neural networks and participate in numerous aspects of brain physiology and pathology. They are the main homeostatic cells in the central nervous system, and the loss of astrocyte physiological functions and/or gain of pro-inflammatory functions, due to their reactivation or cellular senescence, can have profound impacts on the surrounding microenvironment with pathological outcomes. Although the importance of astrocytes is generally recognized, and both senescence and reactive astrogliosis have been extensively reviewed independently, there are only a few comparative overviews of these complex processes. In this review, we summarize the latest data regarding astrocyte reactivation and senescence, and outline similarities and differences between these phenotypes from morphological, functional, and molecular points of view. A special focus has been given to neurodegenerative diseases, where these phenotypic alternations of astrocytes are significantly implicated. We also summarize current perspectives regarding new advances in model systems based on astrocytes as well as data pointing to these glial cells as potential therapeutic targets.
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Affiliation(s)
- Andrijana Lazic
- Laboratory for Human Molecular Genetics, Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042 Belgrade, Serbia; (V.B.); (D.S.N.); (M.P.); (M.S.)
- Correspondence:
| | - Vanda Balint
- Laboratory for Human Molecular Genetics, Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042 Belgrade, Serbia; (V.B.); (D.S.N.); (M.P.); (M.S.)
| | - Danijela Stanisavljevic Ninkovic
- Laboratory for Human Molecular Genetics, Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042 Belgrade, Serbia; (V.B.); (D.S.N.); (M.P.); (M.S.)
| | - Mina Peric
- Laboratory for Human Molecular Genetics, Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042 Belgrade, Serbia; (V.B.); (D.S.N.); (M.P.); (M.S.)
| | - Milena Stevanovic
- Laboratory for Human Molecular Genetics, Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042 Belgrade, Serbia; (V.B.); (D.S.N.); (M.P.); (M.S.)
- Faculty of Biology, University of Belgrade, Studentski trg 16, 11000 Belgrade, Serbia
- Serbian Academy of Sciences and Arts, Kneza Mihaila 35, 11001 Belgrade, Serbia
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13
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Stojkovic D, Drakulic D, Dias MI, Zengin G, Barros L, Ivanov M, Gašic U, Rajcevic N, Stevanovic M, Ferreira ICFR, Sokovic M. Phlomis fruticosa L. exerts in vitro antineurodegenerative and antioxidant activities and induces prooxidant effect in glioblastoma cell line. EXCLI J 2022; 21:387-399. [PMID: 35368464 PMCID: PMC8971322 DOI: 10.17179/excli2021-4487] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Accepted: 02/09/2022] [Indexed: 12/12/2022]
Abstract
Despite the significant advances in drug development we are witnessing the inability of health systems to combat both neurodegenerative diseases and cancers, especially glioblastoma. Hence, natural products are comprehensively studied in order to provide novel therapeutic options. This study aimed to explore anti-neurodegenerative and anti-glioblastoma potential of extract of Phlomis fruticosa L. using in vitro model systems. It was found that the methanol extract of P. fruticosa was able to efficiently reduce activities of enzymes linked to neurodegenerative disease including acetylcholinesterase, butyrylcholinesterase and tyrosinase. Furthermore, P. fruticosa extract has shown excellent antioxidant potential, as evidenced by six different methods. Analysis of cytotoxic effect of P. fruticosa extract on A172 glioblastoma cell line revealed that the concentration of the extract necessary for 50 % inhibition of A172 growth (IC50) was 710 μg/mL. The extract did not induce changes in proliferation and morphology of A172 glioblastoma cells. On the other side, production of ROS was increased in A172 cells treated with the extract. Observed cytotoxic effect of P. fruticosa extract might be based on increase in ROS generation upon treatment. Quantitative chemical analysis revealed the presence of twelve different polyphenols with the cis 3-O-caffeoylquinic acid being the most abundant. This study provided scientific evidence for further exploration of P. fruticosa as a promising natural anti-neurodegenerative therapeutic option.
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Affiliation(s)
- Dejan Stojkovic
- Department of Plant Physiology, Institute for Biological Research "Siniša Stankovic" - National Institute of Republic of Serbia, University of Belgrade, Bulevar despota Stefana 142, 11000 Belgrade, Serbia
| | - Danijela Drakulic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042 Belgrade 152, Serbia
| | - Maria Inês Dias
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
| | - Gokhan Zengin
- Physiology and Biochemistry Research Laboratory, Department of Biology, Science Faculty, Selcuk University, Campus, 42130, Konya, Turkey
| | - Lillian Barros
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
| | - Marija Ivanov
- Department of Plant Physiology, Institute for Biological Research "Siniša Stankovic" - National Institute of Republic of Serbia, University of Belgrade, Bulevar despota Stefana 142, 11000 Belgrade, Serbia
| | - Uroš Gašic
- Department of Plant Physiology, Institute for Biological Research "Siniša Stankovic" - National Institute of Republic of Serbia, University of Belgrade, Bulevar despota Stefana 142, 11000 Belgrade, Serbia
| | - Nemanja Rajcevic
- University of Belgrade, Faculty of Biology, Studentski trg 16, 11158 Belgrade, Serbia
| | - Milena Stevanovic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042 Belgrade 152, Serbia.,University of Belgrade, Faculty of Biology, Studentski trg 16, 11158 Belgrade, Serbia.,Serbian Academy of Sciences and Arts, Kneza Mihaila 35, 11000 Belgrade, Serbia
| | - Isabel C F R Ferreira
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
| | - Marina Sokovic
- Department of Plant Physiology, Institute for Biological Research "Siniša Stankovic" - National Institute of Republic of Serbia, University of Belgrade, Bulevar despota Stefana 142, 11000 Belgrade, Serbia
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14
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Gitarić J, Warżajtis B, Drašković NS, Stevanovic M, Ašanin DP, Skaro-Bogojevic S, Rychlewska U, Djuran MI, Glišić BĐ. Structural characterization and antimicrobial evaluation of chromium(III) and cobalt(III) complexes with 2,2-diMe-1,3-pdta: Tuning dimensionality of coordination polymer and the water content by alkyl substitution. Polyhedron 2022. [DOI: 10.1016/j.poly.2022.115864] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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15
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Krstic A, Pavic A, Avdovic E, Markovic Z, Stevanovic M, Petrovic I. Coumarin-Palladium(II) Complex Acts as a Potent and Non-Toxic Anticancer Agent against Pancreatic Carcinoma Cells. Molecules 2022; 27:2115. [PMID: 35408514 PMCID: PMC9000835 DOI: 10.3390/molecules27072115] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [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: 02/24/2022] [Revised: 03/18/2022] [Accepted: 03/19/2022] [Indexed: 12/30/2022] Open
Abstract
Pancreatic carcinoma still represents one of the most lethal malignant diseases in the world although some progress has been made in treating the disease in the past decades. Current multi-agent treatment options have improved the overall survival of patients, however, more effective treatment strategies are still needed. In this paper we have characterized the anticancer potential of coumarin-palladium(II) complex against pancreatic carcinoma cells. Cells viability, colony formation and migratory potential of pancreatic carcinoma cells were assessed in vitro, followed by evaluation of apoptosis induction and in vivo testing on zebrafish. Presented results showed remarkable reduction in pancreatic carcinoma cells growth both in vitro and in vivo, being effective at micromolar concentrations (0.5 μM). Treatments induced apoptosis, increased BAX/BCL-2 ratio and suppressed the expression of SOX9 and SOX18, genes shown to be significantly up-regulated in pancreatic ductal adenocarcinoma. Importantly, treatments of the zebrafish-pancreatic adenocarcinoma xenografts resulted in significant reduction in tumor mass, without provoking any adverse toxic effects including hepatotoxicity. Presented results indicate the great potential of the tested compound and the perspective of its further development towards pancreatic cancer therapy.
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Affiliation(s)
- Aleksandra Krstic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042 Belgrade, Serbia; (A.K.); (A.P.); (M.S.)
| | - Aleksandar Pavic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042 Belgrade, Serbia; (A.K.); (A.P.); (M.S.)
| | - Edina Avdovic
- Department of Science, Institute of Information Technologies, University of Kragujevac, Jovana Cvijica bb, 34000 Kragujevac, Serbia; (E.A.); (Z.M.)
| | - Zoran Markovic
- Department of Science, Institute of Information Technologies, University of Kragujevac, Jovana Cvijica bb, 34000 Kragujevac, Serbia; (E.A.); (Z.M.)
| | - Milena Stevanovic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042 Belgrade, Serbia; (A.K.); (A.P.); (M.S.)
- Faculty of Biology, University of Belgrade, Studentski trg 16, 11000 Belgrade, Serbia
- Department of Chemical and Biological Sciences, Serbian Academy of Sciences and Arts, Kneza Mihaila 35, 11000 Belgrade, Serbia
| | - Isidora Petrovic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042 Belgrade, Serbia; (A.K.); (A.P.); (M.S.)
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16
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Stevanovic M, Ninkovic D, Mojsin M, Drakulic D, Schwirtlich M. Interplay of SOX transcription factors and microRNAs in the brain under physiological and pathological conditions. Neural Regen Res 2022; 17:2325-2334. [PMID: 35535866 PMCID: PMC9120710 DOI: 10.4103/1673-5374.338990] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Precise tuning of gene expression, accomplished by regulatory networks of transcription factors, epigenetic modifiers, and microRNAs, is crucial for the proper neural development and function of the brain cells. The SOX transcription factors are involved in regulating diverse cellular processes during embryonic and adult neurogenesis, such as maintaining the cell stemness, cell proliferation, cell fate decisions, and terminal differentiation into neurons and glial cells. MicroRNAs represent a class of small non-coding RNAs that play important roles in the regulation of gene expression. Together with other gene regulatory factors, microRNAs regulate different processes during neurogenesis and orchestrate the spatial and temporal expression important for neurodevelopment. The emerging data point to a complex regulatory network between SOX transcription factors and microRNAs that govern distinct cellular activities in the developing and adult brain. Deregulated SOX/microRNA interplay in signaling pathways that influence the homeostasis and plasticity in the brain has been revealed in various brain pathologies, including neurodegenerative disorders, traumatic brain injury, and cancer. Therapeutic strategies that target SOX/microRNA interplay have emerged in recent years as a promising tool to target neural tissue regeneration and enhance neurorestoration. Numerous studies have confirmed complex interactions between microRNAs and SOX-specific mRNAs regulating key features of glioblastoma. Keeping in mind the crucial roles of SOX genes and microRNAs in neural development, we focus this review on SOX/microRNAs interplay in the brain during development and adulthood in physiological and pathological conditions. Special focus was made on their interplay in brain pathologies to summarize current knowledge and highlight potential future development of molecular therapies.
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17
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Balint V, Ninkovic DS, Anastasov N, Lazic S, Kovacevic-Grujicic N, Stevanovic M, Lazic A. Inhibition of miR-21 Promotes Cellular Senescence in NT2-Derived Astrocytes. Biochemistry (Mosc) 2021; 86:1434-1445. [PMID: 34906045 DOI: 10.1134/s0006297921110079] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 09/28/2021] [Accepted: 09/28/2021] [Indexed: 06/14/2023]
Abstract
Astrocytes are the main homeostatic cells in the central nervous system (CNS) that provide mechanical, metabolic, and trophic support to neurons. Disruption of their physiological role or acquisition of senescence-associated phenotype can contribute to the CNS dysfunction and pathology. However, molecular mechanisms underlying the complex physiology of astrocytes are explored insufficiently. Recent studies have shown that miRNAs are involved in the regulation of astrocyte function through different mechanisms. Although miR-21 has been reported as an astrocytic miRNA with an important role in astrogliosis, no link between this miRNA and cellular senescence of astrocytes has been identified. To address the role of miR-21 in astrocytes, with special focus on cellular senescence, we used NT2/A (astrocytes derived from NT2/D1 cells). Downregulation of miR-21 expression in both immature and mature NT2/A by the antisense technology induced the arrest of cell growth and premature cellular senescence, as indicated by senescence hallmarks such as increased expression of cell cycle inhibitors p21 and p53 and augmented senescence-associated β-galactosidase activity. Additionally, in silico analysis predicted many of the genes, previously shown to be upregulated in astrocytes with the irradiation-induced senescence, as miR-21 targets. Taken together, our results point to miR-21 as a potential regulator of astrocyte senescence. To the best of our knowledge, these are the first data showing the link between miR-21 and cellular senescence of astrocytes. Since senescent astrocytes are associated with different CNS pathologies, development of novel therapeutic strategies based on miRNA manipulation could prevent senescence and may improve the physiological outcome.
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Affiliation(s)
- Vanda Balint
- Laboratory for Human Molecular Genetics, Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, 11042, Serbia
| | - Danijela Stanisavljevic Ninkovic
- Laboratory for Human Molecular Genetics, Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, 11042, Serbia
| | - Natasa Anastasov
- Helmholtz Zentrum München, German Research Center for Environmental Health, Institute of Biological and Medical Imaging, Neuherberg, 85764, Germany
| | - Stefan Lazic
- Laboratory for Human Molecular Genetics, Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, 11042, Serbia
| | - Natasa Kovacevic-Grujicic
- Laboratory for Human Molecular Genetics, Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, 11042, Serbia
| | - Milena Stevanovic
- Laboratory for Human Molecular Genetics, Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, 11042, Serbia
- Faculty of Biology, University of Belgrade, Belgrade, 11158, Serbia
- Serbian Academy of Sciences and Arts, Belgrade, 11000, Serbia
| | - Andrijana Lazic
- Laboratory for Human Molecular Genetics, Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, 11042, Serbia.
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Stevanovic M, Kovacevic-Grujicic N, Mojsin M, Milivojevic M, Drakulic D. SOX transcription factors and glioma stem cells: Choosing between stemness and differentiation. World J Stem Cells 2021; 13:1417-1445. [PMID: 34786152 PMCID: PMC8567447 DOI: 10.4252/wjsc.v13.i10.1417] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 07/15/2021] [Accepted: 09/16/2021] [Indexed: 02/06/2023] Open
Abstract
Glioblastoma (GBM) is the most common, most aggressive and deadliest brain tumor. Recently, remarkable progress has been made towards understanding the cellular and molecular biology of gliomas. GBM tumor initiation, progression and relapse as well as resistance to treatments are associated with glioma stem cells (GSCs). GSCs exhibit a high proliferation rate and self-renewal capacity and the ability to differentiate into diverse cell types, generating a range of distinct cell types within the tumor, leading to cellular heterogeneity. GBM tumors may contain different subsets of GSCs, and some of them may adopt a quiescent state that protects them against chemotherapy and radiotherapy. GSCs enriched in recurrent gliomas acquire more aggressive and therapy-resistant properties, making them more malignant, able to rapidly spread. The impact of SOX transcription factors (TFs) on brain tumors has been extensively studied in the last decade. Almost all SOX genes are expressed in GBM, and their expression levels are associated with patient prognosis and survival. Numerous SOX TFs are involved in the maintenance of the stemness of GSCs or play a role in the initiation of GSC differentiation. The fine-tuning of SOX gene expression levels controls the balance between cell stemness and differentiation. Therefore, innovative therapies targeting SOX TFs are emerging as promising tools for combatting GBM. Combatting GBM has been a demanding and challenging goal for decades. The current therapeutic strategies have not yet provided a cure for GBM and have only resulted in a slight improvement in patient survival. Novel approaches will require the fine adjustment of multimodal therapeutic strategies that simultaneously target numerous hallmarks of cancer cells to win the battle against GBM.
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Affiliation(s)
- Milena Stevanovic
- Laboratory for Human Molecular Genetics, Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade 11042, Serbia
- Chair Biochemistry and Molecular Biology, Faculty of Biology, University of Belgrade, Belgrade 11158, Serbia
- Department of Chemical and Biological Sciences, Serbian Academy of Sciences and Arts, Belgrade 11000, Serbia.
| | - Natasa Kovacevic-Grujicic
- Laboratory for Human Molecular Genetics, Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade 11042, Serbia
| | - Marija Mojsin
- Laboratory for Human Molecular Genetics, Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade 11042, Serbia
| | - Milena Milivojevic
- Laboratory for Human Molecular Genetics, Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade 11042, Serbia
| | - Danijela Drakulic
- Laboratory for Human Molecular Genetics, Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade 11042, Serbia
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19
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Stevanovic M, Drakulic D, Lazic A, Ninkovic DS, Schwirtlich M, Mojsin M. SOX Transcription Factors as Important Regulators of Neuronal and Glial Differentiation During Nervous System Development and Adult Neurogenesis. Front Mol Neurosci 2021; 14:654031. [PMID: 33867936 PMCID: PMC8044450 DOI: 10.3389/fnmol.2021.654031] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [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: 01/15/2021] [Accepted: 03/11/2021] [Indexed: 12/11/2022] Open
Abstract
The SOX proteins belong to the superfamily of transcription factors (TFs) that display properties of both classical TFs and architectural components of chromatin. Since the cloning of the Sox/SOX genes, remarkable progress has been made in illuminating their roles as key players in the regulation of multiple developmental and physiological processes. SOX TFs govern diverse cellular processes during development, such as maintaining the pluripotency of stem cells, cell proliferation, cell fate decisions/germ layer formation as well as terminal cell differentiation into tissues and organs. However, their roles are not limited to development since SOX proteins influence survival, regeneration, cell death and control homeostasis in adult tissues. This review summarized current knowledge of the roles of SOX proteins in control of central nervous system development. Some SOX TFs suspend neural progenitors in proliferative, stem-like state and prevent their differentiation. SOX proteins function as pioneer factors that occupy silenced target genes and keep them in a poised state for activation at subsequent stages of differentiation. At appropriate stage of development, SOX members that maintain stemness are down-regulated in cells that are competent to differentiate, while other SOX members take over their functions and govern the process of differentiation. Distinct SOX members determine down-stream processes of neuronal and glial differentiation. Thus, sequentially acting SOX TFs orchestrate neural lineage development defining neuronal and glial phenotypes. In line with their crucial roles in the nervous system development, deregulation of specific SOX proteins activities is associated with neurodevelopmental disorders (NDDs). The overview of the current knowledge about the link between SOX gene variants and NDDs is presented. We outline the roles of SOX TFs in adult neurogenesis and brain homeostasis and discuss whether impaired adult neurogenesis, detected in neurodegenerative diseases, could be associated with deregulation of SOX proteins activities. We present the current data regarding the interaction between SOX proteins and signaling pathways and microRNAs that play roles in nervous system development. Finally, future research directions that will improve the knowledge about distinct and various roles of SOX TFs in health and diseases are presented and discussed.
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Affiliation(s)
- Milena Stevanovic
- Laboratory for Human Molecular Genetics, Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, Serbia.,Faculty of Biology, University of Belgrade, Belgrade, Serbia.,Serbian Academy of Sciences and Arts, Belgrade, Serbia
| | - Danijela Drakulic
- Laboratory for Human Molecular Genetics, Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, Serbia
| | - Andrijana Lazic
- Laboratory for Human Molecular Genetics, Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, Serbia
| | - Danijela Stanisavljevic Ninkovic
- Laboratory for Human Molecular Genetics, Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, Serbia
| | - Marija Schwirtlich
- Laboratory for Human Molecular Genetics, Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, Serbia
| | - Marija Mojsin
- Laboratory for Human Molecular Genetics, Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, Serbia
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20
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Gökengin D, Wilson-Davies E, Nazlı Zeka A, Palfreeman A, Begovac J, Dedes N, Tarashenko O, Stevanovic M, Patel R. 2021 European guideline on HIV testing in genito-urinary medicine settings. J Eur Acad Dermatol Venereol 2021; 35:1043-1057. [PMID: 33666276 DOI: 10.1111/jdv.17139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 01/14/2021] [Indexed: 11/30/2022]
Abstract
Testing for HIV is critical for early diagnosis of HIV infection, providing long-term good health for the individual and prevention of onward transmission if antiretroviral treatment is initiated early. The main purpose of the 2021 European Guideline on HIV Testing in Genito-Urinary Settings is to provide advice on testing for HIV infection in individuals aged 16 years and older who present to sexually transmitted infection, genito-urinary or dermato-venereology clinics across Europe. The guideline presents the details of best practice and offers practical guidance to clinicians and laboratories to identify and offer HIV testing to appropriate patient groups.
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Affiliation(s)
- D Gökengin
- Faculty of Medicine, Department of Clinical Microbiology and Infectious Diseases, Ege University, Izmir, Turkey.,Ege University HIV/AIDS Research and Practice Center, Izmir, Turkey
| | - E Wilson-Davies
- Southampton Specialist Virology Center, University Hospitals Southampton, Southampton, UK
| | - A Nazlı Zeka
- Faculty of Medicine, Department of Clinical Microbiology and Infectious Diseases, Dokuz Eylül University, Izmir, Turkey
| | - A Palfreeman
- Department of Infectious Diseases, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - J Begovac
- Department of Infectious Diseases, University Hospital for Infectious Diseases, University of Zagreb School of Medicine, Zagreb, Croatia
| | - N Dedes
- Positive Voice, Athens, Greece
| | - O Tarashenko
- Head Center of Hygiene and Epidemiology, Federal Medical-Biological Agency (FMBA) of Russia, Moscow, Russia
| | - M Stevanovic
- Clinic for Infectious Diseases and Febrile Conditions, Skopje, Former Yugoslav Republic of Macedonia
| | - R Patel
- Solent NHS Trust, Southampton, UK
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21
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Halimi V, Daci A, Ridova N, Panovska-Stavridis I, Stevanovic M, Filipce V, Dimovski A, Grozdanova A. The use of remdesivir outside of clinical trials during the COVID-19 pandemic. J Pharm Policy Pract 2020; 13:61. [PMID: 32968487 PMCID: PMC7503054 DOI: 10.1186/s40545-020-00258-8] [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] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Accepted: 08/18/2020] [Indexed: 12/15/2022] Open
Abstract
With a scientific background from filoviruses, paramyxoviruses, SARS-CoV, and MERS-CoV, remdesivir entered into the COVID-19 battle to become one of the favorable therapeutic candidates with potential antiviral activity in the treatment of this disease. Globally, remdesivir was accessed and investigated through clinical research (clinical trials) and clinical practice (compassionate use, expanded access, early access scheme, and emergency use). Currently, remdesivir approval status differs between states. This paper aims to review and analyze regulatory approaches for accessing and investigating remdesivir, by communicating regulatory variability between countries in terms of terminology, modalities, and protocols.
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Affiliation(s)
- Vesa Halimi
- Faculty of Pharmacy, University Ss. Cyril and Methodius University, Skopje, North Macedonia
| | - Armond Daci
- Department of Pharmacy, Faculty of Medicine, University of Prishtina, Prishtina, Kosovo
| | - Nevenka Ridova
- University Clinic of Hematology, Medical Faculty, University Ss. Cyril and Methodius University, Skopje, North Macedonia
| | - Irina Panovska-Stavridis
- University Clinic of Hematology, Medical Faculty, University Ss. Cyril and Methodius University, Skopje, North Macedonia
| | - Milena Stevanovic
- University Clinic of Infection Diseases and Febrile Conditions, Medical Faculty, University Ss. Cyril and Methodius, Skopje, North Macedonia
| | - Venko Filipce
- University Clinic for Neurosurgery, Medical Faculty, University Ss. Cyril and Methodius, Skopje, North Macedonia
| | - Aleksandar Dimovski
- Faculty of Pharmacy, University Ss. Cyril and Methodius University, Skopje, North Macedonia
| | - Aleksandra Grozdanova
- Faculty of Pharmacy, University Ss. Cyril and Methodius University, Skopje, North Macedonia
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22
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Severova-Andreevska G, Nikolov I, Trajceska L, Gjorgjievski N, Cana F, Demiri I, Stevanovic M, Rambabova-Bushljetikj I, Spasovski G. First Experience in Management of Coronavirus Disease 2019 (COVID-19) in Kidney Transplant Patient – Case Report. Open Access Maced J Med Sci 2020. [DOI: 10.3889/oamjms.2020.5037] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND: Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection has recently emerged in the world. There are limited data describing the clinical progression of COVID-19 in transplanted patients. In the general population, clinical presentation ranges from asymptomatic infection to severe pneumonia and may also develop renal failure. In kidney transplant (KT) patients, management of these patients was mainly based on anecdotal experience.
CASE REPORT: We report our first experience of KT patients with COVID-19. A 49-year-old male with KT in 2017 presented on March 20, 2020, with fever, weakness, smell loss, chest pain, and caught. On chest X-ray, he presented ground-glass opacities and bilateral pneumonia. There was a slight progression to acute hypoxic respiratory failure. We reduced immunosuppression therapy and since we suspected seasonal flu, we applied available antiviral oseltamivir till confirmation of RNA sequence of the SARS-CoV-2 virus. Moreover, we applied azithromycin and broad spectrum of antibiotics as well as an anticoagulant therapy. Graft function remained stable during 14 days of hospitalization. The patient clinically improved with decreasing oxygen requirements and manifested clinical recovery. After two negative PCR test, he was discharged and immunosuppression therapy was returned to previous.
CONCLUSION: This case highlights the importance of earlier outpatient hospitalization and testing which may improve COVID-19 outcomes among transplanted patients.
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Davidovic S, Malyarchuk B, Grzybowski T, Aleksic JM, Derenko M, Litvinov A, Rogalla-Ładniak U, Stevanovic M, Kovacevic-Grujicic N. Complete mitogenome data for the Serbian population: the contribution to high-quality forensic databases. Int J Legal Med 2020; 134:1581-1590. [PMID: 32504149 DOI: 10.1007/s00414-020-02324-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [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: 11/02/2019] [Accepted: 05/28/2020] [Indexed: 11/24/2022]
Abstract
Mitochondrial genome (mtDNA) is a valuable resource in resolving various human forensic casework. The usage of variability of complete mtDNA genomes increases their discriminatory power to the maximum and enables ultimate resolution of distinct maternal lineages. However, their wider employment in forensic casework is nowadays limited by the lack of appropriate reference database. In order to fill in the gap in the reference data, which, considering Slavic-speaking populations, currently comprises only mitogenomes of East and West Slavs, we present mitogenome data for 226 Serbians, representatives of South Slavs from the Balkan Peninsula. We found 143 (sub)haplogroups among which West Eurasian ones were dominant. The percentage of unique haplotypes was 85%, and the random match probability was as low as 0.53%. We support previous findings on both high levels of genetic diversity in the Serbian population and patterns of genetic differentiation among this and ten studied European populations. However, our high-resolution data supported more pronounced genetic differentiation among Serbians and two Slavic populations (Russians and Poles) as well as expansion of the Serbian population after the Last Glacial Maximum and during the Migration period (fourth to ninth century A.D.), as inferred from the Bayesian skyline analysis. Phylogenetic analysis of haplotypes found in Serbians contributed towards the improvement of the worldwide mtDNA phylogeny, which is essential for the interpretation of the mtDNA casework.
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Affiliation(s)
- Slobodan Davidovic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, PO Box 23, Vojvode Stepe 444a, Belgrade, 11010, Serbia.,Department of Genetics of Populations and Ecogenotoxicology, Institute for Biological Research "Siniša Stanković", National Institute of Republic of Serbia, University of Belgrade, Bulevar despota Stefana 142, Belgrade, 11060, Serbia
| | - Boris Malyarchuk
- Genetics Laboratory, Institute of Biological Problems of the North, Russian Academy of Sciences, Portovaya 18, Magadan, 685000, Russia
| | - Tomasz Grzybowski
- Department of Forensic Medicine, Division of Molecular and Forensic Genetics, Ludwik Rydygier Collegium Medicum, Faculty of Medicine, Nicolaus Copernicus University, Marii-Sklodowskiej-Curie Str. 9, 85-094, Bydgoszcz, Poland
| | - Jelena M Aleksic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, PO Box 23, Vojvode Stepe 444a, Belgrade, 11010, Serbia
| | - Miroslava Derenko
- Genetics Laboratory, Institute of Biological Problems of the North, Russian Academy of Sciences, Portovaya 18, Magadan, 685000, Russia
| | - Andrey Litvinov
- Genetics Laboratory, Institute of Biological Problems of the North, Russian Academy of Sciences, Portovaya 18, Magadan, 685000, Russia
| | - Urszula Rogalla-Ładniak
- Department of Forensic Medicine, Division of Molecular and Forensic Genetics, Ludwik Rydygier Collegium Medicum, Faculty of Medicine, Nicolaus Copernicus University, Marii-Sklodowskiej-Curie Str. 9, 85-094, Bydgoszcz, Poland
| | - Milena Stevanovic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, PO Box 23, Vojvode Stepe 444a, Belgrade, 11010, Serbia.,Faculty of Biology, University of Belgrade, Studentski Trg 16, Belgrade, 11000, Serbia.,Serbian Academy of Sciences and Arts, Kneza Mihaila 35, Belgrade, 11000, Serbia
| | - Natasa Kovacevic-Grujicic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, PO Box 23, Vojvode Stepe 444a, Belgrade, 11010, Serbia.
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Halimi V, Daci A, Stojanovska S, Panovska-Stavridis I, Stevanovic M, Filipce V, Grozdanova A. Current regulatory approaches for accessing potential COVID-19 therapies. J Pharm Policy Pract 2020; 13:16. [PMID: 32454981 PMCID: PMC7229878 DOI: 10.1186/s40545-020-00222-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Accepted: 05/01/2020] [Indexed: 12/17/2022] Open
Abstract
This commentary aims to elaborate challenges in the regulatory approaches for accessing and investigating COVID-19 potential therapies either with off-label use, compassionate use, emergency use or for clinical trials. Since no therapies have been formally approved and completely effective and safe to date, the best clinical choice is acquired only after consistent and fair communication and collaboration between licensed clinicians, researchers, regulatory authorities, manufacturers and patients.
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Affiliation(s)
- Vesa Halimi
- Faculty of Pharmacy, University Ss. Cyril and Methodius, Skopje, North Macedonia
| | - Armond Daci
- Department of Pharmacy, Faculty of Medicine, University of Prishtina, Prishtina, Kosovo
| | - Simona Stojanovska
- University Clinic of Hematology, Medical Faculty, University Ss. Cyril and Methodius, Skopje, North Macedonia
| | - Irina Panovska-Stavridis
- University Clinic of Hematology, Medical Faculty, University Ss. Cyril and Methodius, Skopje, North Macedonia
| | - Milena Stevanovic
- University Clinic of Infection diseases and febrile conditions, Medical Faculty, University Ss. Cyril and Methodius, Skopje, North Macedonia
| | - Venko Filipce
- University Clinic for Neurosurgery, Medical Faculty, University Ss. Cyril and Methodius, Skopje, North Macedonia
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Abstract
INTRODUCTION A segmental nerve defect from trauma results in significant loss of function of the extremity, and rarely occurs in isolation. Autografting of the nerve defect is the current gold standard. METHODS A review of the recent literature regarding peripheral nerve defects after trauma treated with autograft. RESULTS Identification of the zone of nerve injury is difficult and appropriate resection is critical for good outcomes. Meaningful recovery is more likely with application of excellent technique. Many of the factors affecting outcomes are not modifiable. CONCLUSION Nerve grafting for segmental nerve injuries continues to be an essential and appropriate treatment.
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Affiliation(s)
- J Geissler
- Department of Orthopaedic Surgery, University of Minnesota, Hennepin County Medical Center, 701 Park Avenue, Minneapolis, MN 55415, United States.
| | - M Stevanovic
- Department of Orthopaedic Surgery, University of Southern California, Keck School of Medicine, 1520 San Pablo St. Suite 2000, Los Angeles, CA 90033, United States.
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Stanisavljevic D, Popovic J, Petrovic I, Davidovic S, Atkinson MJ, Anastasov N, Stevanovic M. Radiation effects on early phase of NT2/D1 neural differentiation in vitro. Int J Radiat Biol 2019; 95:1627-1639. [PMID: 31509479 DOI: 10.1080/09553002.2019.1665207] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Purpose: Widespread medical use of radiation in diagnosis, imaging and treatment of different central nervous system malignancies lead to various consequences. Aim of this study was to further elucidate mechanism of cell response to radiation and possible consequence on neural differentiation.Materials and methods: NT2/D1 cells that resemble neural progenitors were used as a model system. Undifferentiated NT2/D1 cells and NT2/D1 cells in the early phase of neural differentiation were irradiated with low (0.2 Gy) and moderate (2 Gy) doses of γ radiation. The effect was analyzed on apoptosis, cell cycle, senescence, spheroid formation and the expression of genes and miRNAs involved in the regulation of pluripotency or neural differentiation.Results: Two grays of irradiation induced apoptosis, senescence and cell cycle arrest of NT2/D1 cells, accompanied with altered expression of several genes (SOX2, OCT4, SOX3, PAX6) and miRNAs (miR-219, miR-21, miR124-a). Presented results show that 2 Gy of radiation significantly affected early phase of neural differentiation in vitro.Conclusions: These results suggest that 2 Gy of radiation significantly affected early phase of neural differentiation and affect the population of neural progenitors. These findings might help in better understanding of side effects of radiotherapy in treatments of central nervous system malignancies.
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Affiliation(s)
- Danijela Stanisavljevic
- University of Belgrade, Institute of Molecular Genetics and Genetic Engineering, Belgrade, Serbia
| | - Jelena Popovic
- University of Belgrade, Institute of Molecular Genetics and Genetic Engineering, Belgrade, Serbia
| | - Isidora Petrovic
- University of Belgrade, Institute of Molecular Genetics and Genetic Engineering, Belgrade, Serbia
| | - Slobodan Davidovic
- University of Belgrade, Institute of Molecular Genetics and Genetic Engineering, Belgrade, Serbia
| | - Michael J Atkinson
- Helmholtz Zentrum München, German Research Center for Environmental Health, Institute of Radiation Biology, Neuherberg, Germany.,Chair of Radiation Biology, Technical University of Munich, Munich, Germany
| | - Nataša Anastasov
- Helmholtz Zentrum München, German Research Center for Environmental Health, Institute of Radiation Biology, Neuherberg, Germany
| | - Milena Stevanovic
- University of Belgrade, Institute of Molecular Genetics and Genetic Engineering, Belgrade, Serbia.,University of Belgrade, Faculty of Biology, Belgrade, Serbia.,Serbian Academy of Sciences and Arts, Belgrade, Serbia
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Bogavac-Stanojevic N, Stevanovic M, Zeljkovic A, Vekic J, Stefanovic A, Miljkovic M, Stjepanović Ž, Zeljkovic D, Trifunovic B, Janac J, Spasojevic-Kalimanovska V. Predictors of high molecular weight adiponectin in patients with colorectal cancer. Clin Chim Acta 2019. [DOI: 10.1016/j.cca.2019.03.278] [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: 11/24/2022]
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28
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Marjanovic Vicentic J, Drakulic D, Garcia I, Vukovic V, Aldaz P, Puskas N, Nikolic I, Tasic G, Raicevic S, Garros-Regulez L, Sampron N, Atkinson MJ, Anastasov N, Matheu A, Stevanovic M. SOX3 can promote the malignant behavior of glioblastoma cells. Cell Oncol (Dordr) 2018; 42:41-54. [PMID: 30209685 DOI: 10.1007/s13402-018-0405-5] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/28/2018] [Indexed: 12/19/2022] Open
Abstract
PURPOSE Glioblastoma is the most common and lethal adult brain tumor. Despite current therapeutic strategies, including surgery, radiation and chemotherapy, the median survival of glioblastoma patients is 15 months. The development of this tumor depends on a sub-population of glioblastoma stem cells governing tumor propagation and therapy resistance. SOX3 plays a role in both normal neural development and carcinogenesis. However, little is known about its role in glioblastoma. Thus, the aim of this work was to elucidate the role of SOX3 in glioblastoma. METHODS SOX3 expression was assessed using real-time quantitative PCR (RT-qPCR), Western blotting and immunohistochemistry. MTT, immunocytochemistry and Transwell assays were used to evaluate the effects of exogenous SOX3 overexpression on the viability, proliferation, migration and invasion of glioblastoma cells, respectively. The expression of Hedgehog signaling pathway components and autophagy markers was assessed using RT-qPCR and Western blot analyses, respectively. RESULTS Higher levels of SOX3 expression were detected in a subset of primary glioblastoma samples compared to those in non-tumoral brain tissues. Exogenous overexpression of this gene was found to increase the proliferation, viability, migration and invasion of glioblastoma cells. We also found that SOX3 up-regulation was accompanied by an enhanced activity of the Hedgehog signaling pathway and by suppression of autophagy in glioblastoma cells. Additionally, we found that SOX3 expression was elevated in patient-derived glioblastoma stem cells, as well as in oncospheres derived from glioblastoma cell lines, compared to their differentiated counterparts, implying that SOX3 expression is associated with the undifferentiated state of glioblastoma cells. CONCLUSION From our data we conclude that SOX3 can promote the malignant behavior of glioblastoma cells.
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Affiliation(s)
- Jelena Marjanovic Vicentic
- Laboratory for Human Molecular Genetics, Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, Serbia
| | - Danijela Drakulic
- Laboratory for Human Molecular Genetics, Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, Serbia.
| | - Idoia Garcia
- Cellular Oncology Group, Biodonostia Health Research Institute, San Sebastian, Spain.,IKERBASQUE, Basque Foundation for Science, Bilbao, Spain.,CIBER de Fragilidad y Envejecimiento Saludable (CIBERfes), Madrid, Spain
| | - Vladanka Vukovic
- Laboratory for Human Molecular Genetics, Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, Serbia
| | - Paula Aldaz
- Cellular Oncology Group, Biodonostia Health Research Institute, San Sebastian, Spain.,CIBER de Fragilidad y Envejecimiento Saludable (CIBERfes), Madrid, Spain
| | - Nela Puskas
- Institute of Histology and Embryology "Aleksandar Ð. Kostić", School of Medicine, University of Belgrade, Belgrade, Serbia
| | - Igor Nikolic
- Clinical Center of Serbia, Clinic for Neurosurgery, Belgrade, Serbia.,Medical Faculty, University of Belgrade, Belgrade, Serbia
| | - Goran Tasic
- Clinical Center of Serbia, Clinic for Neurosurgery, Belgrade, Serbia.,Medical Faculty, University of Belgrade, Belgrade, Serbia
| | - Savo Raicevic
- Clinical Center of Serbia, Clinic for Neurosurgery, Belgrade, Serbia
| | - Laura Garros-Regulez
- Cellular Oncology Group, Biodonostia Health Research Institute, San Sebastian, Spain
| | - Nicolas Sampron
- Cellular Oncology Group, Biodonostia Health Research Institute, San Sebastian, Spain.,CIBER de Fragilidad y Envejecimiento Saludable (CIBERfes), Madrid, Spain.,Neuro-oncology Tumor Board, Donostia Hospital, San Sebastian, Spain
| | - Michael J Atkinson
- Institute of Radiation Biology, Helmholtz Center Munich, German Research Center for Environmental Health, Neuherberg, Germany.,Chair of Radiation Biology, Technical University of Munich, Munich, Germany
| | - Natasa Anastasov
- Institute of Radiation Biology, Helmholtz Center Munich, German Research Center for Environmental Health, Neuherberg, Germany
| | - Ander Matheu
- Cellular Oncology Group, Biodonostia Health Research Institute, San Sebastian, Spain.,IKERBASQUE, Basque Foundation for Science, Bilbao, Spain.,CIBER de Fragilidad y Envejecimiento Saludable (CIBERfes), Madrid, Spain.,Neuro-oncology Tumor Board, Donostia Hospital, San Sebastian, Spain
| | - Milena Stevanovic
- Laboratory for Human Molecular Genetics, Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, Serbia.,Faculty of Biology, University of Belgrade, Belgrade, Serbia.,Serbian Academy of Sciences and Arts, Belgrade, Serbia
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Paunesku T, Popovic J, Klajn A, Kovacevic-Grujicic N, Ma Q, Stevanovic M, Woloschak GE. Abstract 456: WR1065, the active metabolite of amifostine modulates chemistry and biology of cisplatin. Cancer Res 2018. [DOI: 10.1158/1538-7445.am2018-456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
WR-1065 [2-((aminopropyl)amino)ethanethiol] is metabolically active form of amifostine (also known as Ethyol, an agent used to mitigate side effects of chemo-radiotherapy in head and neck cancer). In vitro, WR-1065 was also found to decrease DNA damage caused by cisplatin. In some human studies, amifostine was found to be effective against chemotherapy-induced peripheral neuropathy (CIPN). While this effect was not dramatic in all such studies, it was notable in patients who received cisplatin alone. Because CIPN is the most common and longest lasting side effect of chemotherapy we decided to explore possible biological and chemical basis of amifostine mediated protection against platinum (II). Two human cell lines were used in this study: SK-N-SH neuroblastoma cells and NT2/D1 embryonal carcinoma cells. Importantly, their response to cisplatin treatment corresponded to their differentiation. In both cases, differentiated cells survived exposure to cisplatin better than their non-differentiated counterparts; cisplatin IC50 doses in differentiated cells were regularly two times higher. Addition of WR-1065 to cisplatin treated differentiated cells increased their viability regardless of whether that treatment was done, before, during or after cisplatin treatment. Similar approach was used to prepare samples for chemical studies using X-ray absorption near edge structure (XANES) spectroscopy. XANES can be used to investigate oxidation-reduction changes of Pt in biological samples. This was used by others to follow gradual reduction of Pt(IV) into Pt(II) inside cells. In this work, XANES was used to estimate Pt (II) to Pt (IV) ratio in samples of cisplatin treated cells and cisplatin mixed with cellular components such as DNA. Comparisons were done between such samples and their counterparts additionally exposed to WR-1065. In all cases, presence of WR-1065 changed the ratio of two forms of Pt, suggesting that chemistry of this interaction may be a possible mechanism of WR-1065 protection against cisplatin. At the moment, amifostine is not used in clinical practice in combination with platinum based chemotherapy drugs. Reasons for that may lay in the fact that there remains a concern that Amifostine could possibly protect cancer cells from therapy and not only normal tissues. This work shows that the mechanisms underlying ability of amifostine to decrease detrimental effects of platinum (II) are compatible with delayed CIPN treatment. This means that amifostine could be used to reduce CIPN symptoms significantly after cancer treatment, in patients who are cured from cancer but suffer treatment complications.
Citation Format: Tatjana Paunesku, Jelena Popovic, Andrijana Klajn, Natasa Kovacevic-Grujicic, Qing Ma, Milena Stevanovic, Gayle E. Woloschak. WR1065, the active metabolite of amifostine modulates chemistry and biology of cisplatin [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2018; 2018 Apr 14-18; Chicago, IL. Philadelphia (PA): AACR; Cancer Res 2018;78(13 Suppl):Abstract nr 456.
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Affiliation(s)
| | - Jelena Popovic
- 2Institute of Molecular Genetics and Genetic Engineering, Belgrade, Serbia
| | - Andrijana Klajn
- 2Institute of Molecular Genetics and Genetic Engineering, Belgrade, Serbia
| | | | - Qing Ma
- 1Northwestern University, Chicago, IL
| | - Milena Stevanovic
- 2Institute of Molecular Genetics and Genetic Engineering, Belgrade, Serbia
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Gokengin D, Oprea C, Begovac J, Horban A, Zeka AN, Sedlacek D, Allabergan B, Almamedova EA, Balayan T, Banhegyi D, Bukovinova P, Chkhartishvili N, Damira A, Deva E, Elenkov I, Gashi L, Gexha-Bunjaku D, Hadciosmanovic V, Harxhi A, Holban T, Jevtovic D, Jilich D, Kowalska J, Kuvatova D, Ladnaia N, Mamatkulov A, Marjanovic A, Nikolova M, Poljak M, Rüütel K, Shunnar A, Stevanovic M, Trumova Z, Yurin O. HIV care in Central and Eastern Europe: How close are we to the target? Int J Infect Dis 2018; 70:121-130. [PMID: 29550449 DOI: 10.1016/j.ijid.2018.03.007] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [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: 01/08/2018] [Revised: 03/05/2018] [Accepted: 03/09/2018] [Indexed: 02/06/2023] Open
Abstract
OBJECTIVES The aim of this survey was to describe the current status of HIV care in the countries of Central and Eastern Europe and to investigate how close the region is to achieving the UNAIDS 2020 target of 90-90-90. METHODS In 2014, data were collected from 24 Central and Eastern European countries using a 38-item questionnaire. RESULTS All countries reported mandatory screening of blood and organ donors for HIV. Other groups subjected to targeted screening included people who inject drugs (PWID) (15/24, 62.5%), men who have sex with men (MSM) (14/24, 58.3%), and sex workers (12/24, 50.0%). Only 14 of the 24 countries (58.3%) screened pregnant women. The percentages of late presentation and advanced disease were 40.3% (range 14-80%) and 25.4% (range 9-50%), respectively. There was no difference between countries categorized by income or by region in terms of the percentages of persons presenting late or with advanced disease. The availability of newer antiretroviral drugs (rilpivirine, etravirine, darunavir, maraviroc, raltegravir, dolutegravir) tended to be significantly better with a higher country income status. Ten countries reported initiating antiretroviral therapy (ART) regardless of CD4+ T cell count (41.7%), five countries (20.8%) used the threshold of <500 cells/μl, and nine countries (37.5%) used the threshold of <350cells/μl. Initiation of ART regardless of the CD4+ T cell count was significantly more common among high-income countries than among upper-middle-income and lower-middle-income countries (100% vs. 27.3% and 0%, respectively; p=0.001). Drugs were provided free of charge in all countries and mostly provided by governments. There were significant discrepancies between countries regarding the follow-up of people living with HIV. CONCLUSIONS There are major disparities in the provision of HIV care among sub-regions in Europe, which should be addressed. More attention in terms of funding, knowledge and experience sharing, and capacity building is required for the resource-limited settings of Central and Eastern Europe. The exact needs should be defined and services scaled up in order to achieve a standard level of care and provide an adequate and sustainable response to the HIV epidemic in this region.
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Affiliation(s)
- Deniz Gokengin
- Department of Infectious Diseases and Clinical Microbiology, Faculty of Medicine, Ege University Izmir, Turkey.
| | - Cristiana Oprea
- 'Victor Babes' Clinical Hospital for Infectious and Tropical Diseases, 'Carol Davila' University of Medicine and Pharmacy, Bucharest, Romania
| | - Josip Begovac
- University of Zagreb School of Medicine, University Hospital for Infectious Diseases, Zagreb, Croatia
| | - Andrzej Horban
- Hospital for Infectious Diseases in Warsaw, Medical University of Warsaw, Warsaw, Poland
| | | | - Dalibor Sedlacek
- Department of Infectious and Travellers Diseases, Charles University Medical Faculty, Pilsen, Czech Republic
| | - Bayjanov Allabergan
- Institute of Virology, Ministry of Public Health of Uzbekistan, Tashkent, Uzbekistan
| | | | - Tatevik Balayan
- National Centre for Disease Control and Prevention of Armenia, Yerevan, Armenia
| | | | - Pavlina Bukovinova
- Centre for HIV/AIDS, Clinic of Infectious Diseases, University Hospital, Bratislava, Slovakia
| | | | - Alymbaeva Damira
- Department of Infectious Diseases, Division of Medicine, Kyrgyz-Russian Slavonic University, Bishkek, Kyrgyzstan
| | - Edona Deva
- Community Development Fund, Prishtina, Kosovo
| | - Ivaylo Elenkov
- Specialized Hospital for Active Treatment of Infectious and Parasitic Diseases, Sofia, Bulgaria
| | - Luljeta Gashi
- National Institute of Public Health of Kosovo, Prishtina, Kosovo
| | | | - Vesna Hadciosmanovic
- Clinical Centre, Infectious Diseases Clinic, University of Sarajevo, Sarajevo, Bosnia and Herzegovina
| | - Arjan Harxhi
- Infectious Disease Department, Faculty of Medicine, University Hospital Centre of Tirana, Tiran, Albania
| | - Tiberiu Holban
- State Medical and Pharmaceutical University Nicolae Testemitanu, Department of Infectious Diseases and Medical Parasitology, Chisinau, Republic of Moldova
| | - Djorje Jevtovic
- University of Belgrade School of Medicine, Infectious and Tropical Diseases Hospital, Clinical Centre Serbia, HIV/AIDS Unit, Belgrade, Serbia
| | - David Jilich
- Department of Infectious and Tropical Diseases, First Faculty of Medicine, Charles University and Na Bulovce Hospital, Prague, Czech Republic
| | - Justyna Kowalska
- Hospital for Infectious Diseases in Warsaw, Medical University of Warsaw, Warsaw, Poland
| | - Djhamal Kuvatova
- Department of Infectious Diseases, Division of Medicine, Kyrgyz-Russian Slavonic University, Bishkek, Kyrgyzstan
| | - Natalya Ladnaia
- Central Scientific Research Institute of Epidemiology of Rospotrebnadzor, Russian Federal AIDS Centre, Moscow, Russian Federation
| | - Adkhamjon Mamatkulov
- Institute of Virology, Ministry of Public Health of Uzbekistan, Tashkent, Uzbekistan
| | | | - Maria Nikolova
- National Reference Laboratory of Immunology, National Centre of Infectious and Parasitic Diseases, Sofia, Bulgaria
| | - Mario Poljak
- Institute of Microbiology and Immunology, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Kristi Rüütel
- National Institute for Health Development, Tallinn, Estonia
| | - Azzaden Shunnar
- Centre for HIV/AIDS, Clinic of Infectious Diseases, University Hospital, Bratislava, Slovakia
| | - Milena Stevanovic
- Clinic for Infectious Diseases and Febrile Conditions, Skopje, Former Yugoslav Republic of Macedonia
| | - Zhanna Trumova
- Department of HIV Infection and Infection Control, Kazakh National Medical University, Almaty, Kazakhstan
| | - Oleg Yurin
- Central Scientific Research Institute of Epidemiology of Rospotrebnadzor, Russian Federal AIDS Centre, Moscow, Russian Federation
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Bosilkovski M, Stojanov A, Stevanovic M, Karadzovski Z, Krstevski K. Impact of measures to control brucellosis on disease characteristics in humans: experience from an endemic region in the Balkans. Infect Dis (Lond) 2017; 50:340-345. [PMID: 29192529 DOI: 10.1080/23744235.2017.1407037] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Abstract
AIM To analyze the impact of measures undertaken to control brucellosis in the Republic of Macedonia on demographic, epidemiological and clinical characteristics of the disease in humans. METHODS Demographic, epidemiological and clinical characteristics of 340 patients with brucellosis were retrospectively analyzed. Patients were treated at the University Clinic of Infectious Diseases in Skopje during three time periods: 1989-1990 when no national strategy for disease control existed, 2000-2001 when some activities for control were performed and 2011-2014 when an organized and financially supported strategy was accomplished. RESULTS A drastic decrease of the number of cases of human brucellosis during the last period when compared to the first two ones (3.9 and 3.3 times lower, respectively) was evident. Patients from the third period were significantly older, with median age 41 years (range 4-73) vs. 31 years (3-77) and 34 years (1-74), respectively (p = .013). There were more males (86.6 vs. 73.6% and 63.2%, respectively, p = .002) and the disease was more often acquired professionally (80.6 vs. 60.1% and 59.2%, respectively, p = .006). Fewer patients from the third period had elevated body temperature either as a symptom (50.7 vs. 73.6% and 69.6%, respectively, p = .003), or as a sign (35.8 vs. 55.4% and 56.8%, respectively, p = .011) and less often exhibited focal forms (40.3 vs. 56.8% and 64.0%, respectively, p = .007). CONCLUSION The national strategy for brucellosis control, which included vaccination of small ruminants, resulted in a decrease of human brucellosis cases in the Republic of Macedonia and there was a tendency to milder disease manifestations.
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Affiliation(s)
- Mile Bosilkovski
- a University clinic for infectious diseases and febrile conditions, Medical Faculty , Ss. Cyril and Methodius University , Skopje , Republic of Macedonia
| | | | - Milena Stevanovic
- a University clinic for infectious diseases and febrile conditions, Medical Faculty , Ss. Cyril and Methodius University , Skopje , Republic of Macedonia
| | | | - Kiril Krstevski
- d Faculty of Veterinary Medicine , Ss. Cyril and Methodius University , Skopje , Republic of Macedonia
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Stanisavljevic D, Petrovic I, Vukovic V, Schwirtlich M, Gredic M, Stevanovic M, Popovic J. SOX14 activates the p53 signaling pathway and induces apoptosis in a cervical carcinoma cell line. PLoS One 2017; 12:e0184686. [PMID: 28926586 PMCID: PMC5604970 DOI: 10.1371/journal.pone.0184686] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Accepted: 08/29/2017] [Indexed: 12/28/2022] Open
Abstract
SOX14 is a member of the SOX family of transcription factors mainly involved in the regulation of neural development. Recently, it became evident that SOX14 is one of four hypermethylated genes in cervical carcinoma, considered as a tumor suppressor candidate in this type of malignancy. In this paper we elucidated the role of SOX14 in the regulation of malignant properties of cervical carcinoma cells in vitro. Functional analysis performed in HeLa cells revealed that SOX14 overexpression decreased viability and promoted apoptosis through altering the expression of apoptosis related genes. Our results demonstrated that overexpression of SOX14 initiated accumulation of p53, demonstrating potential cross-talk between SOX14 and the p53 signaling pathway. Further analysis unambiguously showed that SOX14 triggered posttranslational modification of p53 protein, as detected by the significantly increased level of phospho-p53 (Ser-15) in SOX14-overexpressing HeLa cells. Moreover, the obtained results revealed that SOX14 activated p53 protein, which was confirmed by elevated p21Waf1/Cip1, a well known target gene of p53. This study advances our understanding about the role of SOX14 and might explain the molecular mechanism by which this transcription factor could exert tumor suppressor properties in cervical carcinoma.
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Affiliation(s)
- Danijela Stanisavljevic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, Serbia
| | - Isidora Petrovic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, Serbia
| | - Vladanka Vukovic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, Serbia
| | - Marija Schwirtlich
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, Serbia
| | - Marija Gredic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, Serbia
| | - Milena Stevanovic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, Serbia
- University of Belgrade, Faculty of Biology, Belgrade, Serbia
- Serbian Academy of Sciences and Arts, Belgrade, Serbia
| | - Jelena Popovic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, Serbia
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Topalovic V, Krstic A, Schwirtlich M, Dolfini D, Mantovani R, Stevanovic M, Mojsin M. Epigenetic regulation of human SOX3 gene expression during early phases of neural differentiation of NT2/D1 cells. PLoS One 2017; 12:e0184099. [PMID: 28886103 PMCID: PMC5590877 DOI: 10.1371/journal.pone.0184099] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Accepted: 08/17/2017] [Indexed: 01/09/2023] Open
Abstract
Sox3/SOX3 is one of the earliest neural markers in vertebrates. Together with the Sox1/SOX1 and Sox2/SOX2 genes it is implicated in the regulation of stem cell identity. In the present study, we performed the first analysis of epigenetic mechanisms (DNA methylation and histone marks) involved in the regulation of the human SOX3 gene expression during RA-induced neural differentiation of NT2/D1 cells. We show that the promoter of the human SOX3 gene is extremely hypomethylated both in undifferentiated NT2/D1 cells and during the early phases of RA-induced neural differentiation. By employing chromatin immunoprecipitation, we analyze several histone modifications across different regions of the SOX3 gene and their dynamics following initiation of differentiation. In the same timeframe we investigate profiles of selected histone marks on the promoters of human SOX1 and SOX2 genes. We demonstrate differences in histone signatures of SOX1, SOX2 and SOX3 genes. Considering the importance of SOXB1 genes in the process of neural differentiation, the present study contributes to a better understanding of epigenetic mechanisms implicated in the regulation of pluripotency maintenance and commitment towards the neural lineage.
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Affiliation(s)
- Vladanka Topalovic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, Serbia
| | | | - Marija Schwirtlich
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, Serbia
| | - Diletta Dolfini
- Department of Biosciences, University of Milan, Milan, Italy
| | | | - Milena Stevanovic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, Serbia
- Faculty of Biology, University of Belgrade, Belgrade, Serbia
- Serbian Academy of Sciences and Arts, Belgrade, Serbia
| | - Marija Mojsin
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, Serbia
- * E-mail:
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Zivkovic I, Milasinovic D, Dobras J, Zaharijev S, Mehmedbegovic Z, Pavlovic A, Radomirovic M, Stevanovic M, Matic D, Tesic M, Ristic A, Seferovic P, Vukcevic V, Asanin M, Stankovic G. P4665Impact of the combined anemia and impaired left ventricular function on long-term outcome in STEMI patients undergoing primary PC. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.p4665] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Milosevic A, Milasinovic D, Dobras J, Zaharijev S, Stevanovic M, Radomirovic M, Pavlovic A, Mehmedbegovic Z, Dedovic V, Asanin M, Stankovic S, Vukcevic V, Stankovic G. P5590Association of older age with 30-day and 3-year mortality in patients undergoing primary PCI for STEMI. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx493.p5590] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Zivkovic I, Milasinovic D, Dobras J, Zaharijev S, Mehmedbegovic Z, Pavlovic A, Radomirovic M, Stevanovic M, Matic D, Dedovic V, Ristic A, Seferovic P, Vukcevic V, Asanin M, Stankovic G. P3266Differential impact of impaired renal function and acute heart failure on short- and long-term mortality in patients undergoing primary PCI for STEMI. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.p3266] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Zaharijev S, Milasinovic D, Dobras J, Mehmedbegovic Z, Pavlovic A, Zivkovic I, Radomirovic M, Stevanovic M, Stankovic S, Asanin M, Vukcevic V, Stankovic G. P5586Association of admission anemia and renal failure on short- and long-term outcomes in patients undergoing primary percutaneous coronary intervention. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx493.p5586] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Milasinovic D, Zaharijev S, Dobras J, Pavlovic A, Mehmedbegovic Z, Dedovic V, Radomirovic M, Stevanovic M, Stankovic S, Asanin M, Vukcevic V, Stankovic G. P2291Impact of chronic total occlusion in non-culprit coronary artery on short- and long-term mortality in STEMI patients treated with primary PCI. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p2291] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Mehmedbegovic Z, Milasinovic D, Zaharijev S, Dobras J, Stevanovic M, Radomirovic M, Pavlovic A, Zivkovic M, Dedovic V, Tesic M, Stankovic S, Vukcevic V, Asanin M, Stankovic G. P2746Can we identify with validated risk scores a low-to-intermediate risk patients that could benefit from early discharge after primary PCI? Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p2746] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Mehmedbegovic Z, Milasinovic D, Zaharijev S, Dobras J, Radomirovic S, Stevanovic M, Zivkovic I, Pavlovic A, Dedovic V, Zivkovic M, Stankovic S, Vukcevic V, Asanin M, Stankovic G. P6076Impact of circumflex as a culprit artery on periprocedural and long-term clinical outcome in patients with acute myocardial infarction. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx493.p6076] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Dobras J, Milasinovic D, Mehmedbegovic Z, Zaharijev S, Pavlovic A, Zivkovic I, Zivkovic M, Stankovic S, Stevanovic M, Asanin M, Vukcevic V, Stankovic G. P1401Impact of contrast-induced acute kidney injury on short and long-term mortality in patients with renal failure undergoing primary PCI for STEMI. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p1401] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Pavlovic A, Milasinovic D, Mehmedbegovic Z, Dobras J, Zaharijev S, Stevanovic M, Radomirovic M, Zivkovic I, Ristic A, Vukcevic V, Stankovic S, Asanin M, Stankovic G. P5124Impact of admission hyperglycemia on 3-year mortality in diabetic versus non-diabetic patients undergoing primary PCI for STEMI. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx493.p5124] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Topalovic V, Schwirtlich M, Stevanovic M, Mojsin M. Histone modifications on the promoters of human OCT4 and NANOG genes at the onset of neural differentiation of NT2/D1 cells. Biochemistry Moscow 2017; 82:715-722. [DOI: 10.1134/s0006297917060086] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Smiljkovic M, Stanisavljevic D, Stojkovic D, Petrovic I, Marjanovic Vicentic J, Popovic J, Golic Grdadolnik S, Markovic D, Sankovic-Babice S, Glamoclija J, Stevanovic M, Sokovic M. Apigenin-7-O-glucoside versus apigenin: Insight into the modes of anticandidal and cytotoxic actions. EXCLI J 2017; 16:795-807. [PMID: 28827996 PMCID: PMC5547395 DOI: 10.17179/excli2017-300] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Accepted: 05/18/2017] [Indexed: 12/31/2022]
Abstract
Bioactive potential of apigenin derivative apigenin-7-O-glucoside related to its antifungal activity on Candida spp. and cytotoxic effect on colon cancer cells was studied and compared with bioactive potential of apigenin. Antifungal activity was tested on 14 different isolates of Candida spp. using membrane permeability assay, measuring inhibition of reactive oxidative species and inhibition of CYP51 C. albicans enzyme. Cytotoxic potential of apigenin-7-O-glucoside was tested on colon cancer HCT116 cells by measuring cell viability, apoptosis rate and apoptosis- and colon cancer-related gene expression. Obtained results indicated considerable antifungal activity of apigenin-7-O-glucoside towards all Candida isolates. Breakdown of C. albicans plasma membrane was achieved upon treatment with apigenin-7-O-glucoside for shorter period of time then with apigenin. Reduction of intra- and extracellular reactive oxidative species was achieved with minimum inhibitory concentrations of both compounds, suggesting that reactive oxidative species inhibition could be a mechanism of antifungal action. None of the compounds exhibited binding affinity to C. albicans CYP51 protein. Besides, apigenin-7-O-glucoside was more effective compared to apigenin in reduction of cell's viability and induction of cell death of HCT116 cells. Treatment with both compounds resulted in chromatin condensation, apoptotic bodies formation and apoptotic genes expression in HCT116 cells, but the apigenin-7-O-glucoside required a lower concentration to achieve the same effect. Compounds apigenin-7-O-glucoside and apigenin displayed prominent antifungal potential and cytotoxic effect on HCT116 cells. However, our results showed that apigenin-7-O-glucoside has more potent activity compared to apigenin in all assays that we used.
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Affiliation(s)
- Marija Smiljkovic
- Department of Plant Physiology, Institute for Biological Research "Siniša Stankovic", University of Belgrade, Bulevar Despota Stefana 142, 11000 Belgrade, Serbia
| | - Danijela Stanisavljevic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, PO Box 23, 11010 Belgrade, Serbia
| | - Dejan Stojkovic
- Department of Plant Physiology, Institute for Biological Research "Siniša Stankovic", University of Belgrade, Bulevar Despota Stefana 142, 11000 Belgrade, Serbia
| | - Isidora Petrovic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, PO Box 23, 11010 Belgrade, Serbia
| | - Jelena Marjanovic Vicentic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, PO Box 23, 11010 Belgrade, Serbia
| | - Jelena Popovic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, PO Box 23, 11010 Belgrade, Serbia
| | - Simona Golic Grdadolnik
- Laboratory of Biomolecular Structure, National Institute of Chemistry, Hajdrihova 19, 1000 Ljubljana, Slovenia
| | - Dejan Markovic
- Clinic for Pediatric and Preventative Dentistry, Faculty of Dental Medicine, Rankeova 4, Belgrade
| | | | - Jasmina Glamoclija
- Department of Plant Physiology, Institute for Biological Research "Siniša Stankovic", University of Belgrade, Bulevar Despota Stefana 142, 11000 Belgrade, Serbia
| | - Milena Stevanovic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, PO Box 23, 11010 Belgrade, Serbia
| | - Marina Sokovic
- Department of Plant Physiology, Institute for Biological Research "Siniša Stankovic", University of Belgrade, Bulevar Despota Stefana 142, 11000 Belgrade, Serbia
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Davidovic S, Malyarchuk B, Aleksic J, Derenko M, Topalovic V, Litvinov A, Skonieczna K, Rogalla U, Grzybowski T, Stevanovic M, Kovacevic-Grujicic N. Mitochondrial super-haplogroup U diversity in Serbians. Ann Hum Biol 2017; 44:408-418. [PMID: 28140657 DOI: 10.1080/03014460.2017.1287954] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
BACKGROUND Available mitochondrial (mtDNA) data demonstrate genetic differentiation among South Slavs inhabiting the Balkan Peninsula. However, their resolution is insufficient to elucidate the female-specific aspects of the genetic history of South Slavs, including the genetic impact of various migrations which were rather common within the Balkans, a region having a turbulent demographic history. AIM The aim was to thoroughly study complete mitogenomes of Serbians, a population linking westward and eastward South Slavs. SUBJECTS AND METHODS Forty-six predominantly Serbian super-haplogroup U complete mitogenomes were analysed phylogenetically against ∼4000 available complete mtDNAs of modern and ancient Western Eurasians. RESULTS Serbians share a number of U mtDNA lineages with Southern, Eastern-Central and North-Western Europeans. Putative Balkan-specific lineages (e.g. U1a1c2, U4c1b1, U5b3j, K1a4l and K1a13a1) and lineages shared among Serbians (South Slavs) and West and East Slavs were detected (e.g. U2e1b1, U2e2a1d, U4a2a, U4a2c, U4a2g1, U4d2b and U5b1a1). CONCLUSION The exceptional diversity of maternal lineages found in Serbians may be associated with the genetic impact of both autochthonous pre-Slavic Balkan populations whose mtDNA gene pool was affected by migrations of various populations over time (e.g. Bronze Age pastoralists) and Slavic and Germanic newcomers in the early Middle Ages.
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Affiliation(s)
- Slobodan Davidovic
- a Institute of Molecular Genetics and Genetic Engineering , University of Belgrade , Belgrade , Serbia
| | - Boris Malyarchuk
- b Genetics Laboratory, Institute of Biological Problems of the North , Russian Academy of Sciences , Magadan , Russia
| | - Jelena Aleksic
- a Institute of Molecular Genetics and Genetic Engineering , University of Belgrade , Belgrade , Serbia
| | - Miroslava Derenko
- b Genetics Laboratory, Institute of Biological Problems of the North , Russian Academy of Sciences , Magadan , Russia
| | - Vladanka Topalovic
- a Institute of Molecular Genetics and Genetic Engineering , University of Belgrade , Belgrade , Serbia
| | - Andrey Litvinov
- b Genetics Laboratory, Institute of Biological Problems of the North , Russian Academy of Sciences , Magadan , Russia
| | - Katarzyna Skonieczna
- c Department of Forensic Medicine, Division of Molecular and Forensic Genetics, Ludwik Rydygier Collegium Medicum, Faculty of Medicine , Nicolaus Copernicus University , Bydgoszcz , Poland
| | - Urszula Rogalla
- c Department of Forensic Medicine, Division of Molecular and Forensic Genetics, Ludwik Rydygier Collegium Medicum, Faculty of Medicine , Nicolaus Copernicus University , Bydgoszcz , Poland
| | - Tomasz Grzybowski
- c Department of Forensic Medicine, Division of Molecular and Forensic Genetics, Ludwik Rydygier Collegium Medicum, Faculty of Medicine , Nicolaus Copernicus University , Bydgoszcz , Poland
| | - Milena Stevanovic
- a Institute of Molecular Genetics and Genetic Engineering , University of Belgrade , Belgrade , Serbia
| | - Natasa Kovacevic-Grujicic
- a Institute of Molecular Genetics and Genetic Engineering , University of Belgrade , Belgrade , Serbia
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Stevanovic M, Allacker K, Vermeulen S. Hospital Building Sustainability: The Experience in using Qualitative Tools and Steps Towards the Life Cycle Approach. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.proenv.2017.03.135] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Rakonjac M, Cuturilo G, Stevanovic M, Jelicic L, Subotic M, Jovanovic I, Drakulic D. Differences in speech and language abilities between children with 22q11.2 deletion syndrome and children with phenotypic features of 22q11.2 deletion syndrome but without microdeletion. Res Dev Disabil 2016; 55:322-329. [PMID: 27235769 DOI: 10.1016/j.ridd.2016.05.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [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: 12/06/2015] [Revised: 05/07/2016] [Accepted: 05/09/2016] [Indexed: 06/05/2023]
Abstract
BACKGROUND 22q11.2DS is the most common microdeletion syndrome in humans, usually associated with speech and language delay (SLD). Approximately 75% of children with 22q11.2 microdeletion have congenital heart malformations (CHM) which after infant open-heart surgery might lead to SLD. AIMS The purpose of this study was to determine whether factors associated with microdeletion contribute to SLD in children with 22q11.2DS. METHODS AND PROCEDURES We compared speech and language abilities of two groups of school-aged children: those with 22q11.2 microdeletion (E1) and those with the phenotype resembling 22q11.2DS but without the microdeletion (E2). An age-matched group of typically developing children was also tested. OUTCOMES AND RESULTS The obtained results revealed that children from group E1 have lower level of speech and language abilities compared to children from group E2 and control group. Additionally, mild to moderate SLD was detected in children from group E2 compared to children from the control group. CONCLUSIONS AND IMPLICATIONS The obtained results imply that both CHM after infant open-heart surgery and other factors associated with 22q11.2 microdeletion, contribute to SLD in patients with 22q11.2 microdeletion. Based on this, we could postulate that there is/are some potential candidate gene(s), located in the 22q11.2 region, whose function could be important for speech and language development.
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Affiliation(s)
- Marijana Rakonjac
- Institute for Experimental Phonetics and Speech Pathology, Jovanova 35, Belgrade, Serbia; Life Activities Advancement Center, Jovanova 35, Belgrade, Serbia.
| | - Goran Cuturilo
- Faculty of Medicine, University of Belgrade, Dr Subotica 8, 11000 Belgrade, Serbia; University Children's Hospital, Tirsova 10, 11000 Belgrade, Serbia.
| | - Milena Stevanovic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11010 Belgrade, Serbia.
| | - Ljiljana Jelicic
- Institute for Experimental Phonetics and Speech Pathology, Jovanova 35, Belgrade, Serbia; Life Activities Advancement Center, Jovanova 35, Belgrade, Serbia.
| | - Misko Subotic
- Institute for Experimental Phonetics and Speech Pathology, Jovanova 35, Belgrade, Serbia; Life Activities Advancement Center, Jovanova 35, Belgrade, Serbia.
| | - Ida Jovanovic
- Faculty of Medicine, University of Belgrade, Dr Subotica 8, 11000 Belgrade, Serbia; University Children's Hospital, Tirsova 10, 11000 Belgrade, Serbia.
| | - Danijela Drakulic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11010 Belgrade, Serbia.
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Petrovic I, Milivojevic M, Popovic J, Schwirtlich M, Rankovic B, Stevanovic M. SOX18 Is a Novel Target Gene of Hedgehog Signaling in Cervical Carcinoma Cell Lines. PLoS One 2015; 10:e0143591. [PMID: 26588701 PMCID: PMC4654472 DOI: 10.1371/journal.pone.0143591] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2015] [Accepted: 11/06/2015] [Indexed: 02/08/2023] Open
Abstract
Although there is much evidence showing functional relationship between Hedgehog pathway, in particular Sonic hedgehog, and SOX transcription factors during embryonic development, scarce data are available regarding their crosstalk in cancer cells. SOX18 protein plays an important role in promoting tumor angiogenesis and therefore emerged as a promising potential target in antiangiogenic tumor therapy. Recently it became evident that expression of SOX18 gene in tumors is not restricted to endothelium of accompanying blood and lymphatic vessels, but in tumor cells as well.In this paper we have identified human SOX18 gene as a novel target gene of Hedgehog signaling in cervical carcinoma cell lines. We have presented data showing that expression of SOX18 gene is regulated by GLI1 and GLI2 transcription factors, final effectors of Hedgehog signaling, and that modulation of Hedgehog signaling activity in considerably influence SOX18 expression. We consider important that Hedgehog pathway inhibitors reduced SOX18 expression, thus showing, for the first time, possibility for manipulationwith SOX18 gene expression. In addition, we analyzed the role of SOX18 in malignant potential of cervical carcinoma cell line, and showed that its overexpression has no influence on cells proliferation and viability, but substantially promotes migration and invasion of cells in vitro. Pro-migratory effect of SOX18 suggests its role in promoting malignant spreading, possibly in response to Hedgehog activation.
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Affiliation(s)
- Isidora Petrovic
- Laboratory for Human Molecular Genetics, Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, P.O.BOX 23, 11000 Belgrade, Serbia
- * E-mail:
| | - Milena Milivojevic
- Laboratory for Human Molecular Genetics, Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, P.O.BOX 23, 11000 Belgrade, Serbia
| | - Jelena Popovic
- Laboratory for Human Molecular Genetics, Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, P.O.BOX 23, 11000 Belgrade, Serbia
| | - Marija Schwirtlich
- Laboratory for Human Molecular Genetics, Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, P.O.BOX 23, 11000 Belgrade, Serbia
| | - Branislava Rankovic
- Laboratory for Human Molecular Genetics, Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, P.O.BOX 23, 11000 Belgrade, Serbia
| | - Milena Stevanovic
- Laboratory for Human Molecular Genetics, Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, P.O.BOX 23, 11000 Belgrade, Serbia
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Mojsin M, Topalovic V, Marjanovic Vicentic J, Stevanovic M. Transcription factor NF-Y inhibits cell growth and decreases SOX2 expression in human embryonal carcinoma cell line NT2/D1. Biochemistry (Mosc) 2015; 80:202-7. [PMID: 25756534 DOI: 10.1134/s0006297915020066] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Transcription factor NF-Y belongs to the embryonic stem cell transcription factor circuitry due to its role in the regulation of cell proliferation. We investigated the role of NF-Y in pluripotency maintenance using NT2/D1 cells as one of the best-characterized human embryonal carcinoma cell line. We investigated the efficiency of protein transduction and analyzed the effects of forced expression of short isoform of NF-Y A-subunit (NF-YAs) on NT2/D1 cell growth and expression of SOX2. We found that protein transduction is an efficient method for NF-Y overexpression in NT2/D1 cells. Next, we analyzed the effect of NF-YAs overexpression on NT2/D1 cell viability and detected significant reduction in cell growth. The negative effect of NF-YAs overexpression on NT2/D1 cell pluripotency maintenance was confirmed by the decrease in the level of the pluripotency marker SOX2. Finally, we checked the p53 status and determined that the NF-Y-induced inhibition of NT2/D1 cell growth is p53-independent.
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Affiliation(s)
- M Mojsin
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, 11010, Serbia.
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Klajn A, Drakulic D, Tosic M, Pavkovic Z, Schwirtlich M, Stevanovic M. SOX2 overexpression affects neural differentiation of human pluripotent NT2/D1 cells. Biochemistry (Mosc) 2015; 79:1172-82. [PMID: 25540002 DOI: 10.1134/s0006297914110042] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
SOX2 is one of the key transcription factors involved in maintenance of neural progenitor identity. However, its function during the process of neural differentiation, including phases of lineage-specification and terminal differentiation, is still poorly understood. Considering growing evidence indicating that SOX2 expression level must be tightly controlled for proper neural development, the aim of this research was to analyze the effects of constitutive SOX2 overexpression on outcome of retinoic acid-induced neural differentiation of pluripotent NT2/D1 cells. We demonstrated that in spite of constitutive SOX2 overexpression, NT2/D1 cells were able to reach final phases of neural differentiation yielding both neuronal and glial cells. However, SOX2 overexpression reduced the number of mature MAP2-positive neurons while no difference in the number of GFAP-positive astrocytes was detected. In-depth analysis at single-cell level showed that SOX2 downregulation was in correlation with both neuronal and glial phenotype acquisitions. Interestingly, while in mature neurons SOX2 was completely downregulated, astrocytes with low level of SOX2 expression were detected. Nevertheless, cells with high level of SOX2 expression were incapable of entering in either of two differentiation pathways, neurogenesis or gliogenesis. Accordingly, our results indicate that fine balance between undifferentiated state and neural differentiation depends on SOX2 expression level. Unlike neurons, astrocytes could maintain low level of SOX2 expression after they acquired glial fate. Further studies are needed to determine whether differences in the level of SOX2 expression in GFAP-positive astrocytes are in correlation with their self-renewal capacity, differentiation status, and/or their phenotypic characteristics.
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Affiliation(s)
- A Klajn
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, 11010, Serbia.
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