1
|
Papapetropoulos A, Topouzis S, Alexander SPH, Cortese-Krott M, Kendall DA, Martemyanov KA, Mauro C, Nagercoil N, Panettieri RA, Patel HH, Schulz R, Stefanska B, Stephens GJ, Teixeira MM, Vergnolle N, Wang X, Ferdinandy P. Novel drugs approved by the EMA, the FDA, and the MHRA in 2023: A year in review. Br J Pharmacol 2024; 181:1553-1575. [PMID: 38519837 DOI: 10.1111/bph.16337] [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: 01/27/2024] [Accepted: 01/29/2024] [Indexed: 03/25/2024] Open
Abstract
In 2023, seventy novel drugs received market authorization for the first time in either Europe (by the EMA and the MHRA) or in the United States (by the FDA). Confirming a steady recent trend, more than half of these drugs target rare diseases or intractable forms of cancer. Thirty drugs are categorized as "first-in-class" (FIC), illustrating the quality of research and innovation that drives new chemical entity discovery and development. We succinctly describe the mechanism of action of most of these FIC drugs and discuss the therapeutic areas covered, as well as the chemical category to which these drugs belong. The 2023 novel drug list also demonstrates an unabated emphasis on polypeptides (recombinant proteins and antibodies), Advanced Therapy Medicinal Products (gene and cell therapies) and RNA therapeutics, including the first-ever approval of a CRISPR-Cas9-based gene-editing cell therapy.
Collapse
Affiliation(s)
- Andreas Papapetropoulos
- Laboratory of Pharmacology, Department of Pharmacy, National and Kapodistrian University of Athens, Athens, Greece
- Clinical, Experimental Surgery and Translational Research Center, Biomedical Research Foundation of the Academy of Athens, Athens, Greece
| | - Stavros Topouzis
- Laboratory of Molecular Pharmacology Department of Pharmacy, University of Patras, Patras, Greece
| | | | - Miriam Cortese-Krott
- Myocardial Infarction Research Laboratory, Department of Cardiology, Pneumology, Angiology, Medical Faculty, Heinrich Heine University of Düsseldorf, Düsseldorf, Germany
- CARID, Cardiovascular Research Institute Düsseldorf, Düsseldorf, Germany
| | | | | | - Claudio Mauro
- Institute of Inflammation and Ageing, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
| | | | | | - Hemal H Patel
- VA San Diego Healthcare System and University of California/San Diego, San Diego, CA, USA
| | | | | | | | | | - Nathalie Vergnolle
- IRSD, Université de Toulouse, INSERM, INRAE, ENVT, UPS, Toulouse, France
| | - Xin Wang
- University of Manchester, Manchester, UK
| | - Péter Ferdinandy
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary
- Pharmahungary Group, Szeged, Hungary
| |
Collapse
|
2
|
Marosi B, Kádár B, Bruzsa A, Kocsis L, Kamotsay K, Sinkó J, Szabó BG, Lakatos B. Characteristics of Enterococcus species bloodstream infections among adults with and without onco-hematological malignancies: Experiences from the national center of Hungary. Eur J Microbiol Immunol (Bp) 2024; 14:134-142. [PMID: 38536399 PMCID: PMC11097792 DOI: 10.1556/1886.2024.00011] [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: 01/28/2024] [Accepted: 03/17/2024] [Indexed: 05/16/2024] Open
Abstract
Introduction Over the past decade, enterococcal bloodstream infection (BSI) shows increasing incidence globally among the elderly and in patients with comorbidities. In this study, we aimed to assess microbiological and clinical characteristics and long-term outcomes of BSIs caused by Enterococcus spp. in adult patients with and without active onco-hematological malignancies hospitalized at a national referral institute. Methods A prospective analysis of consecutive enterococcal BSI cases was conducted in the National Institute of Hematology and Infectious Diseases (Budapest, Hungary) between December 2019 and April 2022. We compared characteristics and outcomes at 30-days and 1 year after diagnosis among patients with and without onco-hematological malignancies. Results In total, 141 patients were included (median age 68 ± 21 years, female sex 36.9%), 37% (52/141) had active onco-hematological malignancies. The distribution of species was as follows: 50.4% Enterococcus faecalis, 46.1% Enterococcus faecium, 1.4% Enterococcus avium and Enterococcus gallinarum, and 0.7% Enterococcus raffinosus. No statistically significant differences in all-cause mortality rates were observed between patient subgroups at 30 days (32.7 vs. 28.1%; P = 0.57) and 1 year (75.0 vs. 60.7%; P = 0.09). Conclusion Enterococcal bloodstream infections yielded a relevant burden of morbidity, but with no statistical difference in long-term outcomes of adult patients with and without active onco-hematological malignancies.
Collapse
Affiliation(s)
- Bence Marosi
- South Pest Central Hospital, National Institute of Haematology and Infectious Diseases, Albert Flórián Street 5-7., H-1097, Budapest, Hungary
- School of PhD Studies, Semmelweis University, Üllői Street 26., H-1085, Budapest, Hungary
| | - Béla Kádár
- South Pest Central Hospital, National Institute of Haematology and Infectious Diseases, Albert Flórián Street 5-7., H-1097, Budapest, Hungary
| | - Anna Bruzsa
- South Pest Central Hospital, National Institute of Haematology and Infectious Diseases, Albert Flórián Street 5-7., H-1097, Budapest, Hungary
| | - Laura Kocsis
- South Pest Central Hospital, National Institute of Haematology and Infectious Diseases, Albert Flórián Street 5-7., H-1097, Budapest, Hungary
| | - Katalin Kamotsay
- South Pest Central Hospital, National Institute of Haematology and Infectious Diseases, Albert Flórián Street 5-7., H-1097, Budapest, Hungary
| | - János Sinkó
- South Pest Central Hospital, National Institute of Haematology and Infectious Diseases, Albert Flórián Street 5-7., H-1097, Budapest, Hungary
- Departmental Group of Infectious Diseases, Department of Internal Medicine and Haematology, Semmelweis University, Albert Flórián Street 5-7., H-1097, Budapest, Hungary
| | - Bálint Gergely Szabó
- South Pest Central Hospital, National Institute of Haematology and Infectious Diseases, Albert Flórián Street 5-7., H-1097, Budapest, Hungary
- School of PhD Studies, Semmelweis University, Üllői Street 26., H-1085, Budapest, Hungary
- Departmental Group of Infectious Diseases, Department of Internal Medicine and Haematology, Semmelweis University, Albert Flórián Street 5-7., H-1097, Budapest, Hungary
| | - Botond Lakatos
- South Pest Central Hospital, National Institute of Haematology and Infectious Diseases, Albert Flórián Street 5-7., H-1097, Budapest, Hungary
- School of PhD Studies, Semmelweis University, Üllői Street 26., H-1085, Budapest, Hungary
- Departmental Group of Infectious Diseases, Department of Internal Medicine and Haematology, Semmelweis University, Albert Flórián Street 5-7., H-1097, Budapest, Hungary
| |
Collapse
|
3
|
Menyhárt Á, Bálint AR, Kozák P, Bari F, Farkas E. Nimodipine accelerates the restoration of functional hyperemia during spreading oligemia. J Neurochem 2024; 168:888-898. [PMID: 36810711 DOI: 10.1111/jnc.15792] [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: 10/06/2022] [Revised: 02/14/2023] [Accepted: 02/18/2023] [Indexed: 02/24/2023]
Abstract
Spreading depolarization (SD) is assumed to be the pathophysiological correlate of migraine aura, leading to spreading depression of activity and a long-lasting vasoconstriction known as spreading oligemia. Furthermore, cerebrovascular reactivity is reversibly impaired after SD. Here, we explored the progressive restoration of impaired neurovascular coupling to somatosensory activation during spreading oligemia. Also, we evaluated whether nimodipine treatment accelerated the recovery of impaired neurovascular coupling after SD. Male, 4-9-month-old C57BL/6 mice (n = 11) were anesthetized with isoflurane (1%-1.5%), and SD was triggered with KCl through a burr hole made at the caudal parietal bone. EEG and cerebral blood flow (CBF) were recorded minimally invasively with a silver ball electrode and transcranial laser-Doppler flowmetry, rostral to SD elicitation. The L-type voltage-gated Ca2+ channel blocker nimodipine was administered i.p. (10 mg/kg). Whisker stimulation-related evoked potentials (EVPs) and functional hyperemia were assessed under isoflurane (0.1%)-medetomidine (0.1 mg/kg i.p.) anesthesia before, and repeatedly after SD, at 15-min intervals for 75 minutes. Nimodipine accelerated the recovery of CBF from spreading oligemia (time to full recovery, 52 ± 13 vs. 70 ± 8 min, nimodipine vs. control) and exhibited a tendency to shorten the duration of the SD-related EGG depression duration. The amplitudes of EVP and functional hyperemia were markedly reduced after SD, and progressively recovered over an hour post-SD. Nimodipine exerted no impact on EVP amplitude but consistently increased the absolute level of functional hyperemia from 20 min post-CSD (93 ± 11% vs. 66 ± 13%, nimodipine vs. control). A linear, positive correlation between EVP and functional hyperemia amplitude was skewed by nimodipine. In conclusion, nimodipine facilitated CBF restoration from spreading oligemia and the recovery of functional hyperemia post-SD, which were linked to a tendency of an accelerated return of spontaneous neural activity after SD. The use of nimodipine in migraine prophylaxis is suggested to be re-visited.
Collapse
Affiliation(s)
- Ákos Menyhárt
- Hungarian Centre of Excellence for Molecular Medicine-University of Szeged, Cerebral Blood Flow and Metabolism Research Group, Szeged, Hungary
- Department of Cell Biology and Molecular Medicine, Albert Szent-Györgyi Medical School and Faculty of Science and Informatics, University of Szeged, Szeged, Hungary
| | - Armand Rafael Bálint
- Department of Cell Biology and Molecular Medicine, Albert Szent-Györgyi Medical School and Faculty of Science and Informatics, University of Szeged, Szeged, Hungary
- Department of Medical Physics and Informatics, Albert Szent-Györgyi Medical School and Faculty of Science and Informatics, University of Szeged, Szeged, Hungary
| | - Péter Kozák
- Department of Cell Biology and Molecular Medicine, Albert Szent-Györgyi Medical School and Faculty of Science and Informatics, University of Szeged, Szeged, Hungary
| | - Ferenc Bari
- Department of Medical Physics and Informatics, Albert Szent-Györgyi Medical School and Faculty of Science and Informatics, University of Szeged, Szeged, Hungary
| | - Eszter Farkas
- Hungarian Centre of Excellence for Molecular Medicine-University of Szeged, Cerebral Blood Flow and Metabolism Research Group, Szeged, Hungary
- Department of Cell Biology and Molecular Medicine, Albert Szent-Györgyi Medical School and Faculty of Science and Informatics, University of Szeged, Szeged, Hungary
| |
Collapse
|
4
|
Kovács A, Fábián A, Lang RM. Unfolding the secrets of the right ventricle in three dimensions: the tale of a custom echocardiographic method. Eur Heart J Cardiovasc Imaging 2024; 25:e149-e150. [PMID: 37943800 DOI: 10.1093/ehjci/jead300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 11/04/2023] [Indexed: 11/12/2023] Open
Affiliation(s)
- Attila Kovács
- Heart and Vascular Center, Semmelweis University, 68 Városmajor street, H-1122, Budapest, Hungary
| | - Alexandra Fábián
- Heart and Vascular Center, Semmelweis University, 68 Városmajor street, H-1122, Budapest, Hungary
| | | |
Collapse
|
5
|
Biró B, Gál Z, Fekete Z, Klecska E, Hoffmann OI. Mitochondrial genome plasticity of mammalian species. BMC Genomics 2024; 25:278. [PMID: 38486136 PMCID: PMC10941376 DOI: 10.1186/s12864-024-10201-9] [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: 06/27/2023] [Accepted: 03/08/2024] [Indexed: 03/17/2024] Open
Abstract
There is an ongoing process in which mitochondrial sequences are being integrated into the nuclear genome. The importance of these sequences has already been revealed in cancer biology, forensic, phylogenetic studies and in the evolution of the eukaryotic genetic information. Human and numerous model organisms' genomes were described from those sequences point of view. Furthermore, recent studies were published on the patterns of these nuclear localised mitochondrial sequences in different taxa.However, the results of the previously released studies are difficult to compare due to the lack of standardised methods and/or using few numbers of genomes. Therefore, in this paper our primary goal is to establish a uniform mining pipeline to explore these nuclear localised mitochondrial sequences.Our results show that the frequency of several repetitive elements is higher in the flanking regions of these sequences than expected. A machine learning model reveals that the flanking regions' repetitive elements and different structural characteristics are highly influential during the integration process.In this paper, we introduce a general mining pipeline for all mammalian genomes. The workflow is publicly available and is believed to serve as a validated baseline for future research in this field. We confirm the widespread opinion, on - as to our current knowledge - the largest dataset, that structural circumstances and events corresponding to repetitive elements are highly significant. An accurate model has also been trained to predict these sequences and their corresponding flanking regions.
Collapse
Affiliation(s)
- Bálint Biró
- Agribiotechnology and Precision Breeding for Food Security National Laboratory, Department of Animal Biotechnology, Institute of Genetics and Biotechnology, Hungarian University of Agriculture and Life Sciences, Szent-Györgyi Albert str. 4, 2100, Gödöllő, Hungary.
- Group BM, Data Insights Team, _VOIS, Kerepesi str. 35, 1087, Budapest, Hungary.
| | - Zoltán Gál
- Agribiotechnology and Precision Breeding for Food Security National Laboratory, Department of Animal Biotechnology, Institute of Genetics and Biotechnology, Hungarian University of Agriculture and Life Sciences, Szent-Györgyi Albert str. 4, 2100, Gödöllő, Hungary
| | - Zsófia Fekete
- Department of Genetics and Genomics, Institute of Genetics and Biotechnology, Hungarian University of Agriculture and Life Sciences, Szent-Györgyi Albert str. 4, 2100, Gödöllő, Hungary
| | - Eszter Klecska
- FamiCord Group, Krio Institute, Kelemen László str, 1026, Budapest, Hungary
| | - Orsolya Ivett Hoffmann
- Agribiotechnology and Precision Breeding for Food Security National Laboratory, Department of Animal Biotechnology, Institute of Genetics and Biotechnology, Hungarian University of Agriculture and Life Sciences, Szent-Györgyi Albert str. 4, 2100, Gödöllő, Hungary.
| |
Collapse
|
6
|
Tóth A, Traub M, Bencsik N, Détári L, Hajnik T, Dobolyi A. Sleep- and sleep deprivation-related changes of vertex auditory evoked potentials during the estrus cycle in female rats. Sci Rep 2024; 14:5784. [PMID: 38461157 PMCID: PMC10924932 DOI: 10.1038/s41598-024-56392-9] [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: 09/28/2023] [Accepted: 03/06/2024] [Indexed: 03/11/2024] Open
Abstract
The estrus cycle in female rodents has been shown to affect a variety of physiological functions. However, little is known about its presumably thorough effect on auditory processing during the sleep-wake cycle and sleep deprivation. Vertex auditory evoked potentials (vAEPs) were evoked by single click tone stimulation and recorded during different stages of the estrus cycle and sleep deprivation performed in metestrus and proestrus in female rats. vAEPs showed a strong sleep-dependency, with the largest amplitudes present during slow wave sleep while the smallest ones during wakefulness. Higher amplitudes and longer latencies were seen in the light phase during all vigilance stages. The largest amplitudes were found during proestrus (light phase) while the shortest latencies were seen during estrus (dark phase) compared to the 2nd day diestrus baseline. High-amplitude responses without latency changes were also seen during metestrus with increased homeostatic sleep drive. More intense and faster processing of auditory information during proestrus and estrus suggesting a more effective perception of relevant environmental cues presumably in preparation for sexual receptivity. A 4-h sleep deprivation resulted in more pronounced sleep recovery in metestrus compared to proestrus without difference in delta power replacement suggesting a better tolerance of sleep deprivation in proestrus. Sleep deprivation decreased neuronal excitability and responsiveness in a similar manner both during metestrus and proestrus, suggesting that the negative consequences of sleep deprivation on auditory processing may have a limited correlation with the estrus cycle stage.
Collapse
Affiliation(s)
- Attila Tóth
- In Vivo Electrophysiology Research Group, Department of Physiology and Neurobiology, Eötvös Loránd University, Pázmány Péter sétány 1/C, Budapest, 1117, Hungary.
| | - Máté Traub
- In Vivo Electrophysiology Research Group, Department of Physiology and Neurobiology, Eötvös Loránd University, Pázmány Péter sétány 1/C, Budapest, 1117, Hungary
| | - Norbert Bencsik
- Cellular Neurobiology Research Group, Department of Physiology and Neurobiology, Eötvös Loránd University, Budapest, Hungary
| | - László Détári
- In Vivo Electrophysiology Research Group, Department of Physiology and Neurobiology, Eötvös Loránd University, Pázmány Péter sétány 1/C, Budapest, 1117, Hungary
| | - Tünde Hajnik
- In Vivo Electrophysiology Research Group, Department of Physiology and Neurobiology, Eötvös Loránd University, Pázmány Péter sétány 1/C, Budapest, 1117, Hungary
| | - Arpád Dobolyi
- Laboratory of Molecular and Systems Neurobiology, Department of Physiology and Neurobiology, Eötvös Loránd University, Budapest, Hungary
| |
Collapse
|
7
|
Radó MK, Kisfalusi D, Laverty AA, van Lenthe FJ, Been JV, Takács K. Socio-economic inequalities in smoking and drinking in adolescence: Assessment of social network dynamics. Addiction 2024; 119:488-498. [PMID: 37994195 DOI: 10.1111/add.16384] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 10/04/2023] [Indexed: 11/24/2023]
Abstract
AIMS We investigated whether (1) adolescents selected friends with a similar socio-economic status (SES), (2) smoking and alcohol consumption spread in networks and (3) the exclusion of non-smokers or non-drinkers differed between SES groups. DESIGN This was a longitudinal study using stochastic actor-oriented models to analyze complete social network data over three waves. SETTING Eight Hungarian secondary schools with socio-economically diverse classes took part. PARTICIPANTS This study comprised 232 adolescents aged between 14 and 15 years in the first wave. MEASUREMENTS Self-reported smoking behavior, alcohol consumption behavior and friendship ties were measured. SES was measured based upon entitlement to an income-tested regular child protection benefit. FINDINGS Non-low-SES adolescents were most likely to form friendships with peers from their own SES group [odds ratio (OR) = 1.07, 95% confidence interval (CI) = 1.02-1.11]. Adolescents adjusted their smoking behavior (OR = 24.05, 95% CI = 1.27-454.86) but not their alcohol consumption (OR = 1.65, 95% CI = 0.62-4.39) to follow the behavior of their friends. Smokers did not differ from non-smokers in the likelihood of receiving a friendship nomination (OR = 0.98, 95% CI = 0.87-1.10), regardless of their SES. Alcohol consumers received significantly more friendship nominations than non-consumers (OR = 1.16, 95% CI = 1.01-1.33), but this association was not significantly different according to SES. CONCLUSIONS Hungarian adolescents appear to prefer friendships within their own socio-economic status group, and smoking and alcohol consumption spread within those friendship networks. Socio-economic groups do not differ in the extent to which they encourage smoking or alcohol consumption.
Collapse
Affiliation(s)
- Márta K Radó
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Solna, Sweden
- Institute for Analytical Sociology, Department of Management and Engineering, Linköping University, Norrköping, Sweden
- Division of Neonatology, Department of Paediatrics, Erasmus MC, Sophia Children's Hospital, University Medical Centre Rotterdam, Rotterdam, the Netherlands
| | - Dorottya Kisfalusi
- HUN-REN Centre for Social Sciences, Computational Social Science-Research Center for Educational and Network Studies (CSS - RECENS), Budapest, Hungary
| | - Anthony A Laverty
- Public Health Policy Evaluation Unit, School of Public Health, Imperial College London, London, UK
| | - Frank J van Lenthe
- Department of Public Health, Erasmus MC, University Medical Centre Rotterdam, Rotterdam, the Netherlands
- Department of Human Geography and Spatial Planning, Utrecht University, Utrecht, the Netherlands
| | - Jasper V Been
- Division of Neonatology, Department of Paediatrics, Erasmus MC, Sophia Children's Hospital, University Medical Centre Rotterdam, Rotterdam, the Netherlands
- Department of Public Health, Erasmus MC, University Medical Centre Rotterdam, Rotterdam, the Netherlands
| | - Károly Takács
- Institute for Analytical Sociology, Department of Management and Engineering, Linköping University, Norrköping, Sweden
- HUN-REN Centre for Social Sciences, Computational Social Science-Research Center for Educational and Network Studies (CSS - RECENS), Budapest, Hungary
| |
Collapse
|
8
|
Kozma E, Kele P. Bioorthogonal Reactions in Bioimaging. Top Curr Chem (Cham) 2024; 382:7. [PMID: 38400853 PMCID: PMC10894152 DOI: 10.1007/s41061-024-00452-1] [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: 10/27/2023] [Accepted: 01/22/2024] [Indexed: 02/26/2024]
Abstract
Visualization of biomolecules in their native environment or imaging-aided understanding of more complex biomolecular processes are one of the focus areas of chemical biology research, which requires selective, often site-specific labeling of targets. This challenging task is effectively addressed by bioorthogonal chemistry tools in combination with advanced synthetic biology methods. Today, the smart combination of the elements of the bioorthogonal toolbox allows selective installation of multiple markers to selected targets, enabling multicolor or multimodal imaging of biomolecules. Furthermore, recent developments in bioorthogonally applicable probe design that meet the growing demands of superresolution microscopy enable more complex questions to be addressed. These novel, advanced probes enable highly sensitive, low-background, single- or multiphoton imaging of biological species and events in live organisms at resolutions comparable to the size of the biomolecule of interest. Herein, the latest developments in bioorthogonal fluorescent probe design and labeling schemes will be discussed in the context of in cellulo/in vivo (multicolor and/or superresolved) imaging schemes. The second part focuses on the importance of genetically engineered minimal bioorthogonal tags, with a particular interest in site-specific protein tagging applications to answer biological questions.
Collapse
Affiliation(s)
- Eszter Kozma
- Chemical Biology Research Group, Institute of Organic Chemistry, HUN-REN Research Centre for Natural Sciences, Magyar Tudósok Krt. 2, Budapest, 1117, Hungary
| | - Péter Kele
- Chemical Biology Research Group, Institute of Organic Chemistry, HUN-REN Research Centre for Natural Sciences, Magyar Tudósok Krt. 2, Budapest, 1117, Hungary.
| |
Collapse
|
9
|
Mahmood B, Paunkov A, Kupc M, Burián K, Nagy E, Leitsch D, Sóki J. Proteomics-Based RT-qPCR and Functional Analysis of 18 Genes in Metronidazole Resistance of Bacteroides fragilis. Antibiotics (Basel) 2024; 13:207. [PMID: 38534642 DOI: 10.3390/antibiotics13030207] [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: 01/16/2024] [Revised: 02/17/2024] [Accepted: 02/20/2024] [Indexed: 03/28/2024] Open
Abstract
Previously, we reported that metronidazole MICs are not dependent on the expression levels of nim genes in B. fragilis strains and we compared the proteomes of metronidazole-resistant laboratory B. fragilis strains to those of their susceptible parent strains. Here, we used RT-qPCR to correlate the expression levels of 18 candidate genes in a panel of selected, clinical nim gene-positive and -negative B. fragilis strains to their metronidazole MICs. Metronidazole MICs were correlated with the expression of certain tested genes. Specifically, lactate dehydrogenase expression correlated positively, whereas cytochrome fumarate reductase/succinate dehydrogenase, malate dehydrogenase, phosphoglycerate kinase redox and gat (GCN5-like acetyltransferase), and relA (stringent response) regulatory gene expressions correlated negatively with metronidazole MICs. This result provides evidence for the involvement of carbohydrate catabolic enzymes in metronidazole resistance in B. fragilis. This result was supported by direct substrate utilization tests. However, the exact roles of these genes/proteins should be determined in deletion-complementation tests. Moreover, the exact redox cofactor(s) participating in metronidazole activation need to be identified.
Collapse
Affiliation(s)
- Bakhtiyar Mahmood
- Institute of Medical Microbiology, Albert Szent-Györgyi Medical School, University of Szeged, 6725 Szeged, Hungary
- Department of Biology, University of Garmian, Kalar 2562, Kurdistan Region, Iraq
| | - Ana Paunkov
- Institute of Specific Prophylaxis and Tropical Medicine, Medical University of Vienna, 1090 Vienna, Austria
| | - Malgorzata Kupc
- Institute of Specific Prophylaxis and Tropical Medicine, Medical University of Vienna, 1090 Vienna, Austria
| | - Katalin Burián
- Institute of Medical Microbiology, Albert Szent-Györgyi Medical School, University of Szeged, 6725 Szeged, Hungary
| | - Elisabeth Nagy
- Institute of Medical Microbiology, Albert Szent-Györgyi Medical School, University of Szeged, 6725 Szeged, Hungary
| | - David Leitsch
- Institute of Specific Prophylaxis and Tropical Medicine, Medical University of Vienna, 1090 Vienna, Austria
| | - József Sóki
- Institute of Medical Microbiology, Albert Szent-Györgyi Medical School, University of Szeged, 6725 Szeged, Hungary
| |
Collapse
|
10
|
Krolopp Á, Fésűs L, Szipőcs G, Wikonkál N, Szipőcs R. A 20 MHz Repetition Rate, Sub-Picosecond Ti-Sapphire Laser for Fiber Delivery in Nonlinear Microscopy of the Skin. Life (Basel) 2024; 14:231. [PMID: 38398740 PMCID: PMC10889949 DOI: 10.3390/life14020231] [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: 11/24/2023] [Revised: 01/10/2024] [Accepted: 01/26/2024] [Indexed: 02/25/2024] Open
Abstract
Nonlinear microscopy (NM) enables us to investigate the morphology or monitor the physiological processes of the skin through the use of ultrafast lasers. Fiber (or fiber-coupled) lasers are of great interest because they can easily be combined with a handheld, scanning nonlinear microscope. This latter feature greatly increases the utility of NM for pre-clinical applications and in vivo tissue imaging. Here, we present a fiber-coupled, sub-ps Ti-sapphire laser system being optimized for in vivo, stain-free, 3D imaging of skin alterations with a low thermal load of the skin. The laser is pumped by a low-cost, 2.1 W, 532 nm pump laser and delivers 0.5-1 ps, high-peak-power pulses at a ~20 MHz repetition rate. The spectral bandwidth of the laser is below 2 nm, which results in a low sensitivity for dispersion during fiber delivery. The reduction in the peak intensity due to the increased pulse duration is compensated by the lower repetition rate of our laser. In our proof-of-concept imaging experiments, a ~1.8 m long, commercial hollow-core photonic bandgap fiber was used for fiber delivery. Fresh and frozen skin biopsies of different skin alterations (e.g., adult hemangioma, basal cell cancer) and an unaffected control were used for high-quality, two-photon excitation fluorescence microscopy (2PEF) and second-harmonic generation (SHG) z-stack (3D) imaging.
Collapse
Affiliation(s)
- Ádám Krolopp
- HUN-REN Wigner RCP, Institute for Solid State Physics and Optics, P.O. Box 49, H-1525 Budapest, Hungary
- R&D Ultrafast Lasers Ltd., Konkoly-Thege Street 29-33, H-1121 Budapest, Hungary
| | - Luca Fésűs
- HUN-REN Wigner RCP, Institute for Solid State Physics and Optics, P.O. Box 49, H-1525 Budapest, Hungary
- Department of Dermatology, Venereology and Dermatooncology, Semmelweis University, Mária Street 41, H-1085 Budapest, Hungary
| | - Gergely Szipőcs
- HUN-REN Wigner RCP, Institute for Solid State Physics and Optics, P.O. Box 49, H-1525 Budapest, Hungary
- R&D Ultrafast Lasers Ltd., Konkoly-Thege Street 29-33, H-1121 Budapest, Hungary
| | - Norbert Wikonkál
- HUN-REN Wigner RCP, Institute for Solid State Physics and Optics, P.O. Box 49, H-1525 Budapest, Hungary
- Department of Dermatology, Venereology and Dermatooncology, Semmelweis University, Mária Street 41, H-1085 Budapest, Hungary
| | - Róbert Szipőcs
- HUN-REN Wigner RCP, Institute for Solid State Physics and Optics, P.O. Box 49, H-1525 Budapest, Hungary
- R&D Ultrafast Lasers Ltd., Konkoly-Thege Street 29-33, H-1121 Budapest, Hungary
| |
Collapse
|
11
|
Schreckenberg R, Woitasky N, Itani N, Czech L, Ferdinandy P, Schulz R. Cardiac side effects of RNA-based SARS-CoV-2 vaccines: Hidden cardiotoxic effects of mRNA-1273 and BNT162b2 on ventricular myocyte function and structure. Br J Pharmacol 2024; 181:345-361. [PMID: 37828636 DOI: 10.1111/bph.16262] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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: 05/25/2023] [Revised: 07/16/2023] [Accepted: 08/03/2023] [Indexed: 10/14/2023] Open
Abstract
BACKGROUND AND PURPOSE To protect against SARS-CoV-2 infection, the first mRNA-based vaccines, Spikevax (mRNA-1273, Moderna) and Comirnaty (BNT162b2, Pfizer/Biontech), were approved in 2020. The structure and assembly of the immunogen-in both cases, the SARS-CoV-2 spike (S) glycoprotein-are determined by a messenger RNA sequence that is translated by endogenous ribosomes. Cardiac side-effects, which for the most part can be classified by their clinical symptoms as myo- and/or pericarditis, can be caused by both mRNA-1273 and BNT162b2. EXPERIMENTAL APPROACH As persuasive theories for the underlying pathomechanisms have yet to be developed, this study investigated the effect of mRNA-1273 and BNT162b2 on the function, structure, and viability of isolated adult rat cardiomyocytes over a 72 h period. KEY RESULTS In the first 24 h after application, both mRNA-1273 and BNT162b2 caused neither functional disturbances nor morphological abnormalities. After 48 h, expression of the encoded spike protein was detected in ventricular cardiomyocytes for both mRNAs. At this point in time, mRNA-1273 induced arrhythmic as well as completely irregular contractions associated with irregular as well as localized calcium transients, which provide indications of significant dysfunction of the cardiac ryanodine receptor (RyR2). In contrast, BNT162b2 increased cardiomyocyte contraction via significantly increased protein kinase A (PKA) activity at the cellular level. CONCLUSION AND IMPLICATIONS Here, we demonstrated for the first time, that in isolated cardiomyocytes, both mRNA-1273 and BNT162b2 induce specific dysfunctions that correlate pathophysiologically to cardiomyopathy. Both RyR2 impairment and sustained PKA activation may significantly increase the risk of acute cardiac events.
Collapse
Affiliation(s)
- Rolf Schreckenberg
- Institute of Physiology, Faculty of Medicine, Justus-Liebig University, Gießen, Germany
| | - Nadine Woitasky
- Institute of Physiology, Faculty of Medicine, Justus-Liebig University, Gießen, Germany
| | - Nadja Itani
- Institute of Physiology, Faculty of Medicine, Justus-Liebig University, Gießen, Germany
| | - Laureen Czech
- Institute of Physiology, Faculty of Medicine, Justus-Liebig University, Gießen, Germany
| | - Péter Ferdinandy
- Department of Pharmacology and Pharmacotherapy, National Heart Laboratory, Semmelweis University, Budapest, Hungary
- Pharmahungary Group, Szeged, Hungary
| | - Rainer Schulz
- Institute of Physiology, Faculty of Medicine, Justus-Liebig University, Gießen, Germany
| |
Collapse
|
12
|
Hőgye F, Farkas LB, Balogh ÁK, Szilágyi L, Alnukari S, Bajza I, Borbás A, Fehér K, Illyés TZ, Timári I. Saturation Transfer Difference NMR and Molecular Docking Interaction Study of Aralkyl-Thiodigalactosides as Potential Inhibitors of the Human-Galectin-3 Protein. Int J Mol Sci 2024; 25:1742. [PMID: 38339036 PMCID: PMC10855533 DOI: 10.3390/ijms25031742] [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: 12/31/2023] [Revised: 01/24/2024] [Accepted: 01/25/2024] [Indexed: 02/12/2024] Open
Abstract
Human Galectin-3 (hGal-3) is a protein that selectively binds to β-galactosides and holds diverse roles in both normal and pathological circumstances. Therefore, targeting hGal-3 has become a vibrant area of research in the pharmaceutical chemistry. As a step towards the development of novel hGal-3 inhibitors, we synthesized and investigated derivatives of thiodigalactoside (TDG) modified with different aromatic substituents. Specifically, we describe a high-yielding synthetic route of thiodigalactoside (TDG); an optimized procedure for the synthesis of the novel 3,3'-di-O-(quinoline-2-yl)methyl)-TDG and three other known, symmetric 3,3'-di-O-TDG derivatives ((naphthalene-2yl)methyl, benzyl, (7-methoxy-2H-1-benzopyran-2-on-4-yl)methyl). In the present study, using competition Saturation Transfer Difference (STD) NMR spectroscopy, we determined the dissociation constant (Kd) of the former three TDG derivatives produced to characterize the strength of the interaction with the target protein (hGal-3). Based on the Kd values determined, the (naphthalen-2-yl)methyl, the (quinolin-2-yl)methyl and the benzyl derivatives bind to hGal-3 94, 30 and 24 times more strongly than TDG. Then, we studied the binding modes of the derivatives in silico by molecular docking calculations. Docking poses similar to the canonical binding modes of well-known hGal-3 inhibitors have been found. However, additional binding forces, cation-π interactions between the arginine residues in the binding pocket of the protein and the aromatic groups of the ligands, have been established as significant features. Our results offer a molecular-level understanding of the varying affinities observed among the synthesized thiodigalactoside derivatives, which can be a key aspect in the future development of more effective ligands of hGal-3.
Collapse
Affiliation(s)
- Fanni Hőgye
- Department of Organic Chemistry, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary; (F.H.); (L.B.F.); (L.S.)
| | - László Bence Farkas
- Department of Organic Chemistry, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary; (F.H.); (L.B.F.); (L.S.)
- HUN-REN-UD Molecular Recognition and Interaction Research Group, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary; (Á.K.B.); (S.A.); (A.B.); (K.F.)
| | - Álex Kálmán Balogh
- HUN-REN-UD Molecular Recognition and Interaction Research Group, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary; (Á.K.B.); (S.A.); (A.B.); (K.F.)
| | - László Szilágyi
- Department of Organic Chemistry, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary; (F.H.); (L.B.F.); (L.S.)
| | - Samar Alnukari
- HUN-REN-UD Molecular Recognition and Interaction Research Group, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary; (Á.K.B.); (S.A.); (A.B.); (K.F.)
| | - István Bajza
- GlycOptim Kft., Egyetem tér 1, H-4032 Debrecen, Hungary;
| | - Anikó Borbás
- HUN-REN-UD Molecular Recognition and Interaction Research Group, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary; (Á.K.B.); (S.A.); (A.B.); (K.F.)
- Department of Pharmaceutical Chemistry, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary
| | - Krisztina Fehér
- HUN-REN-UD Molecular Recognition and Interaction Research Group, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary; (Á.K.B.); (S.A.); (A.B.); (K.F.)
| | - Tünde Zita Illyés
- Department of Organic Chemistry, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary; (F.H.); (L.B.F.); (L.S.)
| | - István Timári
- Department of Organic Chemistry, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary; (F.H.); (L.B.F.); (L.S.)
- HUN-REN-UD Molecular Recognition and Interaction Research Group, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary; (Á.K.B.); (S.A.); (A.B.); (K.F.)
| |
Collapse
|
13
|
Bozsó Z, Lapat V, Ott PG, Móricz ÁM. Disparate Effects of Two Clerodane Diterpenes of Giant Goldenrod ( Solidago gigantea Ait.) on Bacillus spizizenii. Int J Mol Sci 2024; 25:1531. [PMID: 38338810 PMCID: PMC10855248 DOI: 10.3390/ijms25031531] [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: 12/30/2023] [Revised: 01/21/2024] [Accepted: 01/22/2024] [Indexed: 02/12/2024] Open
Abstract
New substances with antimicrobial properties are needed to successfully treat emerging human, animal, or plant pathogens. Seven clerodane diterpenes, previously isolated from giant goldenrod (Solidago gigantea) root, were tested against Gram-positive Bacillus subtilis, Bacillus spizizenii and Rhodococcus fascians by measuring minimal bactericidal concentration (MBC), minimal inhibitory concentration (MIC) and half-maximal inhibitory concentration (IC50). Two of them, Sg3a (a dialdehyde) and Sg6 (solidagoic acid B), were proved to be the most effective and were selected for further study. Bacillus spizizenii was incubated with the two diterpenes for shorter (1 h) or longer (5 h) periods and then subjected to genome-wide transcriptional analyses. Only a limited number of common genes (28 genes) were differentially regulated after each treatment, and these were mainly related to the restoration of cell membrane integrity and to membrane-related transports. Changes in gene activity indicated that, among other things, K+ and Na+ homeostasis, pH and membrane electron transport processes may have been affected. Activated export systems can be involved in the removal of harmful molecules from the bacterial cells. Inhibition of bacterial chemotaxis and flagellar assembly, as well as activation of genes for the biosynthesis of secondary metabolites, were observed as a general response. Depending on the diterpenes and the duration of the treatments, down-regulation of the protein synthesis-related, oxidative phosphorylation, signal transduction and transcription factor genes was found. In other cases, up-regulation of the genes of oxidation-reduction processes, sporulation and cell wall modification could be detected. Comparison of the effect of diterpenes with the changes induced by different environmental and nutritional conditions revealed several overlapping processes with stress responses. For example, the Sg6 treatment seems to have caused a starvation-like condition. In summary, there were both common and diterpene-specific changes in the transcriptome, and these changes were also dependent on the length of treatments. The results also indicated that Sg6 exerted its effect more slowly than Sg3a, but ultimately its effect was greater.
Collapse
Affiliation(s)
| | | | | | - Ágnes M. Móricz
- Plant Protection Institute, HUN-REN Centre for Agricultural Research, Herman Ottó Str. 15, H-1022 Budapest, Hungary; (Z.B.); (P.G.O.)
| |
Collapse
|
14
|
Nagy N, Pal M, Kun J, Galik B, Urban P, Medvecz M, Fabos B, Neller A, Abdolreza A, Danis J, Szabo V, Yang Z, Fenske S, Biel M, Gyenesei A, Adam E, Szell M. Missing Heritability in Albinism: Deep Characterization of a Hungarian Albinism Cohort Raises the Possibility of the Digenic Genetic Background of the Disease. Int J Mol Sci 2024; 25:1271. [PMID: 38279271 PMCID: PMC10817051 DOI: 10.3390/ijms25021271] [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: 11/10/2023] [Revised: 01/17/2024] [Accepted: 01/18/2024] [Indexed: 01/28/2024] Open
Abstract
Albinism is characterized by a variable degree of hypopigmentation affecting the skin and the hair, and causing ophthalmologic abnormalities. Its oculocutaneous, ocular and syndromic forms follow an autosomal or X-linked recessive mode of inheritance, and 22 disease-causing genes are implicated in their development. Our aim was to clarify the genetic background of a Hungarian albinism cohort. Using a 22-gene albinism panel, the genetic background of 11 of the 17 Hungarian patients was elucidated. In patients with unidentified genetic backgrounds (n = 6), whole exome sequencing was performed. Our investigations revealed a novel, previously unreported rare variant (N687S) of the two-pore channel two gene (TPCN2). The N687S variant of the encoded TPC2 protein is carried by a 15-year-old Hungarian male albinism patient and his clinically unaffected mother. Our segregational analysis and in vitro functional experiments suggest that the detected novel rare TPCN2 variant alone is not a disease-causing variant in albinism. Deep genetic analyses of the family revealed that the patient also carries a phenotype-modifying R305W variant of the OCA2 protein, and he is the only family member harboring this genotype. Our results raise the possibility that this digenic combination might contribute to the observed differences between the patient and the mother, and found the genetic background of the disease in his case.
Collapse
Affiliation(s)
- Nikoletta Nagy
- Department of Medical Genetics, University of Szeged, 6720 Szeged, Hungary; (M.P.); (A.N.); (A.A.); (E.A.); (M.S.)
- HUN-REN-SZTE Functional Clinical Genetic Research Group, 6720 Szeged, Hungary
| | - Margit Pal
- Department of Medical Genetics, University of Szeged, 6720 Szeged, Hungary; (M.P.); (A.N.); (A.A.); (E.A.); (M.S.)
- HUN-REN-SZTE Functional Clinical Genetic Research Group, 6720 Szeged, Hungary
| | - Jozsef Kun
- Hungarian Centre for Genomics and Bioinformatics, Szentagothai Research Centre, University of Pecs, 7624 Pecs, Hungary; (J.K.); (B.G.); (P.U.); (A.G.)
| | - Bence Galik
- Hungarian Centre for Genomics and Bioinformatics, Szentagothai Research Centre, University of Pecs, 7624 Pecs, Hungary; (J.K.); (B.G.); (P.U.); (A.G.)
| | - Peter Urban
- Hungarian Centre for Genomics and Bioinformatics, Szentagothai Research Centre, University of Pecs, 7624 Pecs, Hungary; (J.K.); (B.G.); (P.U.); (A.G.)
| | - Marta Medvecz
- Department of Dermatology, Venereology and Dermatooncology, Semmelweis University, 1095 Budapest, Hungary;
- ERN-Skin Reference Centre, Semmelweis University, 1095 Budapest, Hungary
| | - Beata Fabos
- Mor Kaposi Teaching Hospital of Somogy County, 7400 Kaposvar, Hungary;
| | - Alexandra Neller
- Department of Medical Genetics, University of Szeged, 6720 Szeged, Hungary; (M.P.); (A.N.); (A.A.); (E.A.); (M.S.)
| | - Aliasgari Abdolreza
- Department of Medical Genetics, University of Szeged, 6720 Szeged, Hungary; (M.P.); (A.N.); (A.A.); (E.A.); (M.S.)
| | - Judit Danis
- HUN-REN-SZTE Dermatological Research Group, 6720 Szeged, Hungary;
- Department of Immunology, University of Szeged, 6720 Szeged, Hungary
| | - Viktoria Szabo
- Department of Ophthalmology, Semmelweis University, 1085 Budapest, Hungary
| | - Zhuo Yang
- Department of Pharmacy, Center for Drug Research, Ludwig-Maximilians-Universität München, 81377 Munich, Germany (M.B.)
| | - Stefanie Fenske
- Department of Pharmacy, Center for Drug Research, Ludwig-Maximilians-Universität München, 81377 Munich, Germany (M.B.)
| | - Martin Biel
- Department of Pharmacy, Center for Drug Research, Ludwig-Maximilians-Universität München, 81377 Munich, Germany (M.B.)
| | - Attila Gyenesei
- Hungarian Centre for Genomics and Bioinformatics, Szentagothai Research Centre, University of Pecs, 7624 Pecs, Hungary; (J.K.); (B.G.); (P.U.); (A.G.)
| | - Eva Adam
- Department of Medical Genetics, University of Szeged, 6720 Szeged, Hungary; (M.P.); (A.N.); (A.A.); (E.A.); (M.S.)
- HUN-REN-SZTE Functional Clinical Genetic Research Group, 6720 Szeged, Hungary
| | - Marta Szell
- Department of Medical Genetics, University of Szeged, 6720 Szeged, Hungary; (M.P.); (A.N.); (A.A.); (E.A.); (M.S.)
- HUN-REN-SZTE Functional Clinical Genetic Research Group, 6720 Szeged, Hungary
| |
Collapse
|
15
|
Major MM, Valicsek Z, Horváth O. Effects of Temperature, Axial Ligand, and Photoexcitation on the Structure and Spin-State of Nickel(II) Complexes with Water-Soluble 5,10,15,20-Tetrakis(1-methylpyridinium-4-yl)porphyrin. Molecules 2024; 29:310. [PMID: 38257224 PMCID: PMC10818337 DOI: 10.3390/molecules29020310] [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: 11/30/2023] [Revised: 12/29/2023] [Accepted: 01/04/2024] [Indexed: 01/24/2024] Open
Abstract
Water-soluble metalloporphyrins, depending on the metal center, possess special spectral, coordination, and photochemical features. In nickel(II) porphyrins, the Ni(II) center can occur with low-spin or high-spin electronic configuration. In aqueous solution, the cationic nickel(II) complex (Ni(II)TMPyP4+, where H2TMPyP4+ = 5,10,15,20-tetrakis(1-methylpyridinium-4-yl)porphyrin), exists in both forms in equilibrium. In this study, an equilibrium system involving the low-spin and high-spin forms of Ni(II)TMPyP4+ was investigated via application of irradiation, temperature change, and various potential axial ligands. Soret band excitation of this aqueous system, in the absence of additional axial ligands, resulted in a shift in the equilibrium toward the low-spin species due to the removal of axial solvent ligands. The kinetics and the thermodynamics of the processes were also studied via determination of the rate and equilibrium constants, as well as the ΔS, ΔH, and ΔG values. Temperature increase had a similar effect. The equilibrium of the spin isomers was also shifted by decreasing the solvent polarity (using n-propanol) as well as by the addition of a stronger coordinating axial ligand (such as ammonia). Since triethanolamine is an efficient electron donor in Ni(II)TMPyP4+-based photocatalytic systems, its interaction with this metalloporphyin was also studied. The results promote the development of efficient photocatalytic systems based on this complex.
Collapse
Affiliation(s)
| | | | - Ottó Horváth
- Research Group of Environmental and Inorganic Photochemistry, Center for Natural Sciences, Faculty of Engineering, University of Pannonia, P.O. Box 1158, H-8210 Veszprém, Hungary; (M.M.M.); (Z.V.)
| |
Collapse
|
16
|
Baasan O, Freihat O, Nagy DU, Lohner S. Change over Five Years in Important Measures of Methodological Quality and Reporting in Randomized Cardiovascular Clinical Trials. J Cardiovasc Dev Dis 2023; 11:2. [PMID: 38276655 PMCID: PMC10816801 DOI: 10.3390/jcdd11010002] [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: 10/29/2023] [Revised: 12/15/2023] [Accepted: 12/18/2023] [Indexed: 01/27/2024] Open
Abstract
OBJECTIVES The aim of our current study was to analyze whether the use of important measures of methodological quality and reporting of randomized clinical trials published in the field of cardiovascular disease research haschanged over time. A furtheraim was to investigate whether there was an improvement over time in the ability of these trials to provide a good estimate of the true intervention effect. METHODS We conducted two searches in the Cochrane Central Register of Controlled Trials (CENTAL) database to identify randomized cardiovascular clinical trials published in either 2012 or 2017. Randomized clinical trials (RCTs) trials in cardiovascular disease research with adult participants were eligible to be included. We randomly selected 250 RCTs for publication years 2012 and 2017. Trial characteristics, data on measures of methodological quality, and reporting were extracted and the risk of bias for each trial was assessed. RESULTS As compared to 2012, in 2017 there were significant improvements in the reporting of the presence of a data monitoring committee (42.0% in 2017 compared to 34.4% in 2012; p < 0.001), and a positive change in registering randomized cardiovascular disease research in clinical trial registries (78.4% in 2017 compared to 68.9% in 2012; p = 0.03). We also observed that significantly more RCTs reported sample size calculation (60.4% in 2017 compared to 49.6% in 2012; p < 0.01) in 2017 as compared to 2012. RCTs in 2017 were more likely to have a low overall risk of bias (RoB) than in 2012 (29.2% in 2017 compared to 21.2% in 2012; p < 0.01). However, fewer 2017 RCTs were rated low (50.8% compared to 65.6%; p < 0.001) risk for blinding of participants and personnel, for blinding of outcome assessors (82.4% compared to 90.8%; p < 0.001), and selective outcome reporting (62.8% compared to 80.0%; <0.001). CONCLUSIONS As compared to 2012, in 2017 there were significant improvements in some, but not all, the important measures of methodological quality. Although more trials in the field of cardiovascular disease research had a lower overall RoB in 2017, the improvement over time was not consistently perceived in all RoB domains.
Collapse
Affiliation(s)
- Odgerel Baasan
- Doctoral School of Health Sciences, University of Pécs, 7621 Pécs, Hungary
- Cochrane Hungary, Clinical Centre of the University of Pécs, Medical School, University of Pécs, 7624 Pécs, Hungary
| | - Omar Freihat
- Doctoral School of Health Sciences, University of Pécs, 7621 Pécs, Hungary
| | - Dávid U. Nagy
- Cochrane Hungary, Clinical Centre of the University of Pécs, Medical School, University of Pécs, 7624 Pécs, Hungary
- Institute of Geobotany/Plant Ecology, Martin-Luther-University, 06108 Halle, Germany
| | - Szimonetta Lohner
- Doctoral School of Health Sciences, University of Pécs, 7621 Pécs, Hungary
- Cochrane Hungary, Clinical Centre of the University of Pécs, Medical School, University of Pécs, 7624 Pécs, Hungary
- Department of Public Health Medicine, Medical School, University of Pécs, 7624 Pécs, Hungary
| |
Collapse
|
17
|
Killoran PM, Capel V, D'Aloisio V, Schofield A, Aczél T, Bölcskei K, Helyes Z, von Mentzer B, Kendall DA, Coxon CR, Hutcheon GA. Novel peptide calcitonin gene-related peptide antagonists for migraine therapy. J Pharm Pharmacol 2023; 75:1581-1589. [PMID: 37742055 DOI: 10.1093/jpp/rgad081] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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: 04/19/2023] [Accepted: 08/22/2023] [Indexed: 09/25/2023]
Abstract
OBJECTIVES It has previously been shown that the peptide (34Pro,35Phe)CGRP27-37 is a potent calcitonin gene-related peptide, CGRP receptor antagonist, and in this project we aimed to improve the antagonist potency through the structural modification of truncated C-terminal CGRP peptides. METHODS Six peptide analogues were synthesized and the anti-CGRP activity confirmed using both in vitro and in vivo studies. KEY FINDINGS A 10 amino acid-containing peptide VPTDVGPFAF-NH2 (P006) was identified as a key candidate to take forward for in vivo evaluation, where it was shown to be an effective antagonist after intraperitoneal injection into mice. P006 was formulated as a preparation suitable for nasal administration by spray drying with chitosan to form mucoadhesive microcarriers (9.55 ± 0.91 mm diameter) and a loading of 0.2 mg peptide per 20 mg dose. CONCLUSIONS The project has demonstrated the potential of these novel small peptide CGRP antagonists, to undergo future preclinical evaluation as anti-migraine therapeutics.
Collapse
Affiliation(s)
- Patrick M Killoran
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool, L3 3AF, United Kingdom
| | - Vicky Capel
- NHS Health Education England, Victoria House, Fulbourn, Cambridge, CB21 5XB, United Kingdom
| | - Vera D'Aloisio
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool, L3 3AF, United Kingdom
- AmbioPharm, Inc., 1024 Dittman Court, North Augusta, SC 29842, United States
| | - Adam Schofield
- EaStCHEM School of Chemistry, The University of Edinburgh, Joseph Black Building, David, Brewster Road, Edinburgh, EH14 4AS, United Kingdom
| | - Tímea Aczél
- Department of Pharmacology and Pharmacotherapy, University of Pécs Medical School, Szigeti út 12, Pécs, Hungary
- Eötvös Lorand Research Network, Chronic Pain Research Group, University of Pécs, Szigeti út 12, Pécs, Hungary
| | - Kata Bölcskei
- Department of Pharmacology and Pharmacotherapy, University of Pécs Medical School, Szigeti út 12, Pécs, Hungary
- Eötvös Lorand Research Network, Chronic Pain Research Group, University of Pécs, Szigeti út 12, Pécs, Hungary
| | - Zsuzsanna Helyes
- Department of Pharmacology and Pharmacotherapy, University of Pécs Medical School, Szigeti út 12, Pécs, Hungary
- Eötvös Lorand Research Network, Chronic Pain Research Group, University of Pécs, Szigeti út 12, Pécs, Hungary
- PharmInVivo Ltd., Szondi Gy. u. 10. H-7629, Pécs, Hungary
- National Laboratory for Drug Research and Development, Magyar tudósok krt. 2, H-1117 Budapest, Hungary
| | - Bengt von Mentzer
- Innovipharm Limited, 2 Woodlands Lane, West Kirby, Wirral, CH48 8D, United Kingdom
| | - David A Kendall
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool, L3 3AF, United Kingdom
- Innovipharm Limited, 2 Woodlands Lane, West Kirby, Wirral, CH48 8D, United Kingdom
| | - Chris R Coxon
- EaStCHEM School of Chemistry, The University of Edinburgh, Joseph Black Building, David, Brewster Road, Edinburgh, EH14 4AS, United Kingdom
| | - Gillian A Hutcheon
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool, L3 3AF, United Kingdom
| |
Collapse
|
18
|
Nguyen Xuan T, Nguyen Thi D, Tran Thuong Q, Nguyen Ngoc T, Dang Quoc K, Molnár Z, Mukhtar S, Szabó-Bárdos E, Horváth O. Effect of Copper-Modification of g-C 3N 4 on the Visible-Light-Driven Photocatalytic Oxidation of Nitrophenols. Molecules 2023; 28:7810. [PMID: 38067540 PMCID: PMC10708227 DOI: 10.3390/molecules28237810] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 11/02/2023] [Revised: 11/22/2023] [Accepted: 11/23/2023] [Indexed: 04/07/2024] Open
Abstract
Graphitic carbon nitride (g-C3N4) has proved to be a promising heterogeneous photocatalyst in the visible range. It can be used, among others, for the oxidative conversion of environmentally harmful nitrophenols occurring in wastewater. However, its photocatalytic activity needs to be enhanced, which can be achieved by modification with various dopants. In our work, copper-modified g-C3N4 was prepared by ultrasonic impregnation of the pristine g-C3N4 synthesized from thiourea. The morphology, microstructure, and optical properties of the photocatalysts were characterized by XRD, FT-IR, DRS, SEM, XPS, and TEM. DRS analysis indicated a slight change in both the CB and the VB energies of Cu/g-C3N4 compared to those of g-C3N4. The efficiency of the photocatalysts prepared was tested by the degradation of nitrophenols. Copper modification caused a sevenfold increase in the rate of 4-nitrophenol degradation in the presence of H2O2 at pH = 3. This dramatic enhancement can be attributed to the synergistic effect of copper and H2O2 in this photocatalytic system. A minor Fenton reaction role was also detected. The reusability of the Cu/g-C3N4 catalyst was demonstrated through five cycles. Copper-modified g-C3N4 with H2O2 proved to be applicable for efficient visible-light-driven photocatalytic oxidative degradation of nitrophenols.
Collapse
Affiliation(s)
- Truong Nguyen Xuan
- School of Chemistry and Life Sciences, Hanoi University of Science and Technology, No.1 Dai Co Viet Street, Hai Ba Trung District, Hanoi 100000, Vietnam; (T.N.X.); (Q.T.T.); (T.N.N.)
| | - Dien Nguyen Thi
- Viettel Aerospace Institute, Viettel Group, Hoa Lac High-Tech Park, Thach That District, Hanoi 10000, Vietnam;
| | - Quang Tran Thuong
- School of Chemistry and Life Sciences, Hanoi University of Science and Technology, No.1 Dai Co Viet Street, Hai Ba Trung District, Hanoi 100000, Vietnam; (T.N.X.); (Q.T.T.); (T.N.N.)
| | - Tue Nguyen Ngoc
- School of Chemistry and Life Sciences, Hanoi University of Science and Technology, No.1 Dai Co Viet Street, Hai Ba Trung District, Hanoi 100000, Vietnam; (T.N.X.); (Q.T.T.); (T.N.N.)
| | - Khanh Dang Quoc
- School of Materials Science and Engineering, Hanoi University of Science and Technology, No.1 Dai Co Viet Street, Hai Ba Trung District, Hanoi 100000, Vietnam;
| | - Zsombor Molnár
- Environmental Mineralogy Research Group, Research Institute of Biomolecular and Chemical Engineering, University of Pannonia, P.O. Box 1158, H-8210 Veszprém, Hungary;
| | - Shoaib Mukhtar
- Research Group of Environmental and Inorganic Photochemistry, Center for Natural Sciences, Faculty of Engineering, University of Pannonia, P.O. Box 1158, H-8210 Veszprém, Hungary (E.S.-B.)
| | - Erzsébet Szabó-Bárdos
- Research Group of Environmental and Inorganic Photochemistry, Center for Natural Sciences, Faculty of Engineering, University of Pannonia, P.O. Box 1158, H-8210 Veszprém, Hungary (E.S.-B.)
| | - Ottó Horváth
- Research Group of Environmental and Inorganic Photochemistry, Center for Natural Sciences, Faculty of Engineering, University of Pannonia, P.O. Box 1158, H-8210 Veszprém, Hungary (E.S.-B.)
| |
Collapse
|
19
|
Lőrincz EB, Tóth G, Spolárics J, Herczeg M, Hodek J, Zupkó I, Minorics R, Ádám D, Oláh A, Zouboulis CC, Weber J, Nagy L, Ostorházi E, Bácskay I, Borbás A, Herczegh P, Bereczki I. Mannich-type modifications of (-)-cannabidiol and (-)-cannabigerol leading to new, bioactive derivatives. Sci Rep 2023; 13:19618. [PMID: 37949940 PMCID: PMC10638401 DOI: 10.1038/s41598-023-45565-7] [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: 08/16/2023] [Accepted: 10/20/2023] [Indexed: 11/12/2023] Open
Abstract
(-)-Cannabidiol (CBD) and (-)-cannabigerol (CBG) are two major non-psychotropic phytocannabinoids that have many beneficial biological properties. However, due to their low water solubility and prominent first-pass metabolism, their oral bioavailability is moderate, which is unfavorable for medicinal use. Therefore, there is a great need for appropriate chemical modifications to improve their physicochemical and biological properties. In this study, Mannich-type reaction was used for the synthetic modification of CBD and CBG for the first time, and thus fifteen new cannabinoid derivatives containing one or two tertiary amino groups were prepared. Thereafter the antiviral, antiproliferative and antibacterial properties of the derivatives and their effects on certain skin cells were investigated. Some modified CBD derivatives showed remarkable antiviral activity against SARS-CoV-2 without cytotoxic effect, while synthetic modifications on CBG resulted in a significant increase in antiproliferative activity in some cases compared to the parent compound.
Collapse
Affiliation(s)
- Eszter Boglárka Lőrincz
- Department of Pharmaceutical Chemistry, University of Debrecen, Debrecen, 4032, Hungary
- Doctoral School of Pharmaceutical Sciences, University of Debrecen, Debrecen, 4032, Hungary
| | - Gergely Tóth
- Department of Pharmaceutical Chemistry, University of Debrecen, Debrecen, 4032, Hungary
| | - Júlia Spolárics
- Department of Pharmaceutical Chemistry, University of Debrecen, Debrecen, 4032, Hungary
| | - Mihály Herczeg
- Department of Pharmaceutical Chemistry, University of Debrecen, Debrecen, 4032, Hungary
| | - Jan Hodek
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Science, Prague, 166 10, Czech Republic
| | - István Zupkó
- Institute of Pharmacodynamics and Biopharmacy, University of Szeged, Szeged, 6720, Hungary
| | - Renáta Minorics
- Institute of Pharmacodynamics and Biopharmacy, University of Szeged, Szeged, 6720, Hungary
| | - Dorottya Ádám
- Department of Physiology, Faculty of Medicine, University of Debrecen, Debrecen, 4032, Hungary
- Doctoral School of Molecular Medicine, University of Debrecen, Debrecen, 4032, Hungary
| | - Attila Oláh
- Department of Physiology, Faculty of Medicine, University of Debrecen, Debrecen, 4032, Hungary
| | - Christos C Zouboulis
- Departments of Dermatology, Venereology, Allergology and Immunology, Staedtisches Klinikum Dessau, Brandenburg Medical School Theodor Fontane and Faculty of Health Sciences Brandenburg, 06847, Dessau, Germany
| | - Jan Weber
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Science, Prague, 166 10, Czech Republic
| | - Lajos Nagy
- Department of Applied Chemistry, University of Debrecen, Debrecen, 4032, Hungary
| | - Eszter Ostorházi
- Department of Medical Microbiology, Semmelweis University, Budapest, 1089, Hungary
| | - Ildikó Bácskay
- Department of Pharmaceutical Technology, University of Debrecen, Debrecen, 4032, Hungary
| | - Anikó Borbás
- Department of Pharmaceutical Chemistry, University of Debrecen, Debrecen, 4032, Hungary.
- National Laboratory of Virology, Szentágothai Research Centre, Pécs, 7624, Hungary.
- HUN-REN-UD Molecular Recognition and Interaction Research Group, University of Debrecen, Debrecen, 4032, Hungary.
| | - Pál Herczegh
- Department of Pharmaceutical Chemistry, University of Debrecen, Debrecen, 4032, Hungary
- HUN-REN-UD Pharmamodul Research Group, University of Debrecen, Debrecen, 4032, Hungary
| | - Ilona Bereczki
- Department of Pharmaceutical Chemistry, University of Debrecen, Debrecen, 4032, Hungary.
- National Laboratory of Virology, Szentágothai Research Centre, Pécs, 7624, Hungary.
- HUN-REN-UD Pharmamodul Research Group, University of Debrecen, Debrecen, 4032, Hungary.
| |
Collapse
|
20
|
Sztankovics D, Krencz I, Moldvai D, Dankó T, Nagy Á, Nagy N, Bedics G, Rókusz A, Papp G, Tőkés AM, Pápay J, Sápi Z, Dezső K, Bödör C, Sebestyén A. Novel RICTOR amplification harbouring entities: FISH validation of RICTOR amplification in tumour tissue after next-generation sequencing. Sci Rep 2023; 13:19610. [PMID: 37949943 PMCID: PMC10638425 DOI: 10.1038/s41598-023-46927-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: 07/29/2023] [Accepted: 11/07/2023] [Indexed: 11/12/2023] Open
Abstract
Alterations in mTOR signalling molecules, including RICTOR amplification, have been previously described in many cancers, particularly associated with poor prognosis. In this study, RICTOR copy number variation (CNV) results of diagnostic next-generation sequencing (NGS) were analysed in 420 various human malignant tissues. RICTOR amplification was tested by Droplet Digital PCR (ddPCR) and validated using the "gold standard" fluorescence in situ hybridisation (FISH). Additionally, the consequences of Rictor protein expression were also studied by immunohistochemistry. RICTOR amplification was presumed in 37 cases with CNV ≥ 3 by NGS, among these, 16 cases (16/420; 3.8%) could be validated by FISH, however, ddPCR confirmed only 11 RICTOR-amplified cases with lower sensitivity. Based on these, neither NGS nor ddPCR could replace traditional FISH in proof of RICTOR amplification. However, NGS could be beneficial to highlight potential RICTOR-amplified cases. The obtained results of the 14 different tumour types with FISH-validated RICTOR amplification demonstrate the importance of RICTOR amplification in a broad spectrum of tumours. The newly described RICTOR-amplified entities could initiate further collaborative studies with larger cohorts to analyse the prevalence of RICTOR amplification in rare diseases. Finally, our and further work could help to improve and expand future therapeutic opportunities for mTOR-targeted therapies.
Collapse
Affiliation(s)
- Dániel Sztankovics
- Department of Pathology and Experimental Cancer Research, Semmelweis University, Üllői út 26, 1085, Budapest, Hungary
| | - Ildikó Krencz
- Department of Pathology and Experimental Cancer Research, Semmelweis University, Üllői út 26, 1085, Budapest, Hungary
| | - Dorottya Moldvai
- Department of Pathology and Experimental Cancer Research, Semmelweis University, Üllői út 26, 1085, Budapest, Hungary
| | - Titanilla Dankó
- Department of Pathology and Experimental Cancer Research, Semmelweis University, Üllői út 26, 1085, Budapest, Hungary
| | - Ákos Nagy
- Department of Pathology and Experimental Cancer Research, Semmelweis University, Üllői út 26, 1085, Budapest, Hungary
- HCEMM-SE Molecular Oncohematology Research Group, Department of Pathology and Experimental Cancer Research, Semmelweis University, Üllői út 26, 1085, Budapest, Hungary
| | - Noémi Nagy
- Department of Pathology and Experimental Cancer Research, Semmelweis University, Üllői út 26, 1085, Budapest, Hungary
- HCEMM-SE Molecular Oncohematology Research Group, Department of Pathology and Experimental Cancer Research, Semmelweis University, Üllői út 26, 1085, Budapest, Hungary
| | - Gábor Bedics
- Department of Pathology and Experimental Cancer Research, Semmelweis University, Üllői út 26, 1085, Budapest, Hungary
- HCEMM-SE Molecular Oncohematology Research Group, Department of Pathology and Experimental Cancer Research, Semmelweis University, Üllői út 26, 1085, Budapest, Hungary
| | - András Rókusz
- Department of Pathology and Experimental Cancer Research, Semmelweis University, Üllői út 26, 1085, Budapest, Hungary
| | - Gergő Papp
- Department of Pathology and Experimental Cancer Research, Semmelweis University, Üllői út 26, 1085, Budapest, Hungary
| | - Anna-Mária Tőkés
- Department of Pathology, Forensic and Insurance Medicine, Semmelweis University, Üllői út 93, 1091, Budapest, Hungary
| | - Judit Pápay
- Department of Pathology and Experimental Cancer Research, Semmelweis University, Üllői út 26, 1085, Budapest, Hungary
| | - Zoltán Sápi
- Department of Pathology and Experimental Cancer Research, Semmelweis University, Üllői út 26, 1085, Budapest, Hungary
| | - Katalin Dezső
- Department of Pathology and Experimental Cancer Research, Semmelweis University, Üllői út 26, 1085, Budapest, Hungary
| | - Csaba Bödör
- Department of Pathology and Experimental Cancer Research, Semmelweis University, Üllői út 26, 1085, Budapest, Hungary
- HCEMM-SE Molecular Oncohematology Research Group, Department of Pathology and Experimental Cancer Research, Semmelweis University, Üllői út 26, 1085, Budapest, Hungary
| | - Anna Sebestyén
- Department of Pathology and Experimental Cancer Research, Semmelweis University, Üllői út 26, 1085, Budapest, Hungary.
| |
Collapse
|
21
|
Plorina EV, Saulus K, Rudzitis A, Kiss N, Medvecz M, Linova T, Bliznuks D, Lihachev A, Lihacova I. Multispectral Imaging Analysis of Skin Lesions in Patients with Neurofibromatosis Type 1. J Clin Med 2023; 12:6746. [PMID: 37959212 PMCID: PMC10649204 DOI: 10.3390/jcm12216746] [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: 08/28/2023] [Revised: 10/11/2023] [Accepted: 10/20/2023] [Indexed: 11/15/2023] Open
Abstract
Neurofibromatosis type 1 (NF1) is a rare disease, affecting around 1 in 3500 individuals in the general population. The rarity of the disease contributes to the scarcity of the available diagnostic and therapeutic approaches. Multispectral imaging is a non-invasive imaging method that shows promise in the diagnosis of various skin diseases. The device utilized for the present study consisted of four sets of narrow-band LEDs, including 526 nm, 663 nm, and 964 nm for diffuse reflectance imaging and 405 nm LEDs, filtered through a 515 nm long-pass filter, for autofluorescence imaging. RGB images were captured using a CMOS camera inside of the device. This paper presents the results of this multispectral skin imaging approach to distinguish the lesions in patients with NF1 from other more common benign skin lesions. The results show that the method provides a potential novel approach to distinguish NF1 lesions from other benign skin lesions.
Collapse
Affiliation(s)
- Emilija V. Plorina
- Institute of Atomic Physics and Spectroscopy, University of Latvia, LV-1586 Riga, Latvia; (K.S.); (A.L.); (I.L.)
- LTD Longenesis, Dzirnavu 41A-5, LV-1010 Riga, Latvia
| | - Kristine Saulus
- Institute of Atomic Physics and Spectroscopy, University of Latvia, LV-1586 Riga, Latvia; (K.S.); (A.L.); (I.L.)
| | - Ainars Rudzitis
- Pauls Stradins Clinical University Hospital, Pilsoņu 13, LV-1002 Riga, Latvia;
| | - Norbert Kiss
- Department of Dermatology, Venereology and Dermatooncology, Semmelweis University, Maria Str. 41, H-1085 Budapest, Hungary; (N.K.); (M.M.)
| | - Márta Medvecz
- Department of Dermatology, Venereology and Dermatooncology, Semmelweis University, Maria Str. 41, H-1085 Budapest, Hungary; (N.K.); (M.M.)
| | - Tatjana Linova
- Dermatology Clinic, Health Center 4, Skanstes 50, LV-1013 Riga, Latvia;
| | - Dmitrijs Bliznuks
- Institute of Smart Computing Technologies, Riga Technical University, Zunda Krastmala 10, LV-1658 Riga, Latvia;
| | - Alexey Lihachev
- Institute of Atomic Physics and Spectroscopy, University of Latvia, LV-1586 Riga, Latvia; (K.S.); (A.L.); (I.L.)
| | - Ilze Lihacova
- Institute of Atomic Physics and Spectroscopy, University of Latvia, LV-1586 Riga, Latvia; (K.S.); (A.L.); (I.L.)
| |
Collapse
|
22
|
Wylie L, Kéri M, Udvardy A, Hollóczki O, Kirchner B. On the Rich Chemistry of Pseudo-Protic Ionic Liquid Electrolytes. ChemSusChem 2023; 16:e202300535. [PMID: 37364035 DOI: 10.1002/cssc.202300535] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Revised: 06/25/2023] [Accepted: 06/26/2023] [Indexed: 06/28/2023]
Abstract
Mixing weak acids and bases can produce highly complicated binary mixtures, called pseudo-protic ionic liquids, in which a complex network of effects determines the physicochemical properties that are currently impossible to predict. In this joint computational-experimental study, we investigated 1-methylimidazole-acetic acid mixtures through the whole concentration range. Effects of the varying ionization and excess of either components on the properties, such as density, diffusion coefficients, and overall hydrogen bonding structure were uncovered. A special emphasis was put on understanding the multiple factors that govern the conductivity of the system. In the presence of an excess of acetic acid, the 1-methylimidazolium acetate ion pairs dissociate more efficiently, resulting in a higher concentration of independently moving, conducting ions. However, the conductivity measurements showed that higher concentrations of acetic acid improve the conductivity beyond this effect, suggesting in addition to standard dilution effects the occurrence of Grotthuss diffusion in high acid-to-base ratios. The results here will potentially help designing novel electrolytes and proton conducting systems, which can be exploited in a variety of applications.
Collapse
Affiliation(s)
- Luke Wylie
- University of Bonn, Clausius Institute of Physical and Theoretical Chemistry, Mulliken Center for Theoretical Chemistry, Beringstr. 4, 53115, Bonn, Germany
| | - Mónika Kéri
- University of Debrecen, Department of Physical Chemistry, Egyetem tér 1, 4032, Debrecen, Hungary
| | - Antal Udvardy
- University of Debrecen, Department of Physical Chemistry, Egyetem tér 1, 4032, Debrecen, Hungary
| | - Oldamur Hollóczki
- University of Debrecen, Department of Physical Chemistry, Egyetem tér 1, 4032, Debrecen, Hungary
| | - Barbara Kirchner
- University of Bonn, Clausius Institute of Physical and Theoretical Chemistry, Mulliken Center for Theoretical Chemistry, Beringstr. 4, 53115, Bonn, Germany
| |
Collapse
|
23
|
Ruppert M, Korkmaz-Icöz S, Benczik B, Ágg B, Nagy D, Bálint T, Sayour AA, Oláh A, Barta BA, Benke K, Ferdinandy P, Karck M, Merkely B, Radovits T, Szabó G. Pressure overload-induced systolic heart failure is associated with characteristic myocardial microRNA expression signature and post-transcriptional gene regulation in male rats. Sci Rep 2023; 13:16122. [PMID: 37752166 PMCID: PMC10522609 DOI: 10.1038/s41598-023-43171-1] [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: 02/06/2023] [Accepted: 09/20/2023] [Indexed: 09/28/2023] Open
Abstract
Although systolic function characteristically shows gradual impairment in pressure overload (PO)-evoked left ventricular (LV) hypertrophy (LVH), rapid progression to congestive heart failure (HF) occurs in distinct cases. The molecular mechanisms for the differences in maladaptation are unknown. Here, we examined microRNA (miRNA) expression and miRNA-driven posttranscriptional gene regulation in the two forms of PO-induced LVH (with/without systolic HF). PO was induced by aortic banding (AB) in male Sprague-Dawley rats. Sham-operated animals were controls. The majority of AB animals demonstrated concentric LVH and slightly decreased systolic function (termed as ABLVH). In contrast, in some AB rats severely reduced ejection fraction, LV dilatation and increased lung weight-to-tibial length ratio was noted (referred to as ABHF). Global LV miRNA sequencing revealed fifty differentially regulated miRNAs in ABHF compared to ABLVH. Network theoretical miRNA-target analysis predicted more than three thousand genes with miRNA-driven dysregulation between the two groups. Seventeen genes with high node strength value were selected for target validation, of which five (Fmr1, Zfpm2, Wasl, Ets1, Atg16l1) showed decreased mRNA expression in ABHF by PCR. PO-evoked systolic HF is associated with unique miRNA alterations, which negatively regulate the mRNA expression of Fmr1, Zfmp2, Wasl, Ets1 and Atg16l1.
Collapse
Affiliation(s)
- Mihály Ruppert
- Experimental Research Laboratory, Heart and Vascular Center, Semmelweis University, Városmajor u. 68, 1122, Budapest, Hungary.
| | - Sevil Korkmaz-Icöz
- Department of Cardiac Surgery, University of Heidelberg, Heidelberg, Germany
- Department of Cardiac Surgery, University Hospital Halle (Saale), Halle, Germany
| | - Bettina Benczik
- Pharmahungary Group, Szeged, Hungary
- Cardiometabolic and HUN-REN-SU System Pharmacology Research Group, Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary
| | - Bence Ágg
- Pharmahungary Group, Szeged, Hungary
- Cardiometabolic and HUN-REN-SU System Pharmacology Research Group, Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary
| | - Dávid Nagy
- Experimental Research Laboratory, Heart and Vascular Center, Semmelweis University, Városmajor u. 68, 1122, Budapest, Hungary
| | - Tímea Bálint
- Experimental Research Laboratory, Heart and Vascular Center, Semmelweis University, Városmajor u. 68, 1122, Budapest, Hungary
| | - Alex Ali Sayour
- Experimental Research Laboratory, Heart and Vascular Center, Semmelweis University, Városmajor u. 68, 1122, Budapest, Hungary
| | - Attila Oláh
- Experimental Research Laboratory, Heart and Vascular Center, Semmelweis University, Városmajor u. 68, 1122, Budapest, Hungary
| | - Bálint András Barta
- Experimental Research Laboratory, Heart and Vascular Center, Semmelweis University, Városmajor u. 68, 1122, Budapest, Hungary
| | - Kálmán Benke
- Experimental Research Laboratory, Heart and Vascular Center, Semmelweis University, Városmajor u. 68, 1122, Budapest, Hungary
| | - Péter Ferdinandy
- Pharmahungary Group, Szeged, Hungary
- Cardiometabolic and HUN-REN-SU System Pharmacology Research Group, Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary
| | - Matthias Karck
- Department of Cardiac Surgery, University of Heidelberg, Heidelberg, Germany
| | - Béla Merkely
- Experimental Research Laboratory, Heart and Vascular Center, Semmelweis University, Városmajor u. 68, 1122, Budapest, Hungary
| | - Tamás Radovits
- Experimental Research Laboratory, Heart and Vascular Center, Semmelweis University, Városmajor u. 68, 1122, Budapest, Hungary
| | - Gábor Szabó
- Department of Cardiac Surgery, University of Heidelberg, Heidelberg, Germany
- Department of Cardiac Surgery, University Hospital Halle (Saale), Halle, Germany
| |
Collapse
|
24
|
Romhányi D, Szabó K, Kemény L, Groma G. Histone and Histone Acetylation-Related Alterations of Gene Expression in Uninvolved Psoriatic Skin and Their Effects on Cell Proliferation, Differentiation, and Immune Responses. Int J Mol Sci 2023; 24:14551. [PMID: 37833997 PMCID: PMC10572426 DOI: 10.3390/ijms241914551] [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: 08/24/2023] [Revised: 09/11/2023] [Accepted: 09/21/2023] [Indexed: 10/15/2023] Open
Abstract
Psoriasis is a chronic immune-mediated skin disease in which the symptom-free, uninvolved skin carries alterations in gene expression, serving as a basis for lesion formation. Histones and histone acetylation-related processes are key regulators of gene expression, controlling cell proliferation and immune responses. Dysregulation of these processes is likely to play an important role in the pathogenesis of psoriasis. To gain a complete overview of these potential alterations, we performed a meta-analysis of a psoriatic uninvolved skin dataset containing differentially expressed transcripts from nearly 300 individuals and screened for histones and histone acetylation-related molecules. We identified altered expression of the replication-dependent histones HIST2H2AA3 and HIST2H4A and the replication-independent histones H2AFY, H2AFZ, and H3F3A/B. Eight histone chaperones were also identified. Among the histone acetyltransferases, ELP3 and KAT5 and members of the ATAC, NSL, and SAGA acetyltransferase complexes are affected in uninvolved skin. Histone deacetylation-related alterations were found to affect eight HDACs and members of the NCOR/SMRT, NURD, SIN3, and SHIP HDAC complexes. In this article, we discuss how histone and histone acetylation-related expression changes may affect proliferation and differentiation, as well as innate, macrophage-mediated, and T cell-mediated pro- and anti-inflammatory responses, which are known to play a central role in the development of psoriasis.
Collapse
Affiliation(s)
- Dóra Romhányi
- Department of Dermatology and Allergology, University of Szeged, H-6720 Szeged, Hungary; (D.R.); (K.S.); (L.K.)
| | - Kornélia Szabó
- Department of Dermatology and Allergology, University of Szeged, H-6720 Szeged, Hungary; (D.R.); (K.S.); (L.K.)
- Hungarian Centre of Excellence for Molecular Medicine-University of Szeged Skin Research Group (HCEMM-USZ Skin Research Group), H-6720 Szeged, Hungary
- HUN-REN-SZTE Dermatological Research Group, H-6720 Szeged, Hungary
| | - Lajos Kemény
- Department of Dermatology and Allergology, University of Szeged, H-6720 Szeged, Hungary; (D.R.); (K.S.); (L.K.)
- Hungarian Centre of Excellence for Molecular Medicine-University of Szeged Skin Research Group (HCEMM-USZ Skin Research Group), H-6720 Szeged, Hungary
- HUN-REN-SZTE Dermatological Research Group, H-6720 Szeged, Hungary
| | - Gergely Groma
- Department of Dermatology and Allergology, University of Szeged, H-6720 Szeged, Hungary; (D.R.); (K.S.); (L.K.)
- HUN-REN-SZTE Dermatological Research Group, H-6720 Szeged, Hungary
| |
Collapse
|
25
|
Szőke K, Kajtár R, Gyöngyösi A, Czompa A, Fésüs A, Lőrincz EB, Petróczi FD, Herczegh P, Bak I, Borbás A, Bereczki I, Lekli I. Pharmacological Evaluation of Newly Synthesized Cannabidiol Derivates on H9c2 Cells. Antioxidants (Basel) 2023; 12:1714. [PMID: 37760017 PMCID: PMC10525859 DOI: 10.3390/antiox12091714] [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: 08/01/2023] [Revised: 08/25/2023] [Accepted: 08/31/2023] [Indexed: 09/29/2023] Open
Abstract
Cannabidiol (CBD) is a nonpsychoactive phytocannabinoid that can be found in Cannabis sativa and possesses numerous pharmacological effects. Due to these promising effects, CBD can be used in a wide variety of diseases, for instance cardiovascular diseases. However, CBD, like tetrahydrocannabinol (THC), has low bioavailability, poor water solubility, and a variable pharmacokinetic profile, which hinders its therapeutic use. Chemical derivatization of CBD offers us potential ways to overcome these issues. We prepared three new CBD derivatives substituted on the aromatic ring by Mannich-type reactions, which have not been described so far for the modification of cannabinoids, and studied the protective effect they have on cardiomyocytes exposed to oxidative stress and hypoxia/reoxygenation (H/R) compared to the parent compound. An MTT assay was performed to determine the viability of rat cardiomyocytes treated with test compounds. Trypan blue exclusion and lactate dehydrogenase (LDH) release assays were carried out to study the effect of the new compounds in cells exposed to H2O2 or hypoxia/reoxygenation (H/R). Direct antioxidant activity was evaluated by a total antioxidant capacity (TAC) assay. To study antioxidant protein levels, HO-1, SOD, catalase, and Western blot analysis were carried out. pIC50 (the negative log of the IC50) values were as follows: CBD1: 4.113, CBD2: 3.995, CBD3: 4.190, and CBD: 4.671. The newly synthesized CBD derivatives prevented cell death induced by H/R, especially CBD2. CBD has the largest direct antioxidant activity. The levels of antioxidant proteins were increased differently after pretreatment with synthetic CBD derivatives and CBD. Taken together, our newly synthesized CBD derivatives are able to decrease cytotoxicity during oxidative stress and H/R. The compounds have similar or better effects than CBD on H9c2 cells.
Collapse
Affiliation(s)
- Kitti Szőke
- Department of Pharmacology, Faculty of Pharmacy, University of Debrecen, 4032 Debrecen, Hungary; (K.S.); (R.K.); (A.G.); (A.C.); (A.F.); (I.B.)
- Institute of Healthcare Industry, University of Debrecen, 4032 Debrecen, Hungary
| | - Richárd Kajtár
- Department of Pharmacology, Faculty of Pharmacy, University of Debrecen, 4032 Debrecen, Hungary; (K.S.); (R.K.); (A.G.); (A.C.); (A.F.); (I.B.)
| | - Alexandra Gyöngyösi
- Department of Pharmacology, Faculty of Pharmacy, University of Debrecen, 4032 Debrecen, Hungary; (K.S.); (R.K.); (A.G.); (A.C.); (A.F.); (I.B.)
| | - Attila Czompa
- Department of Pharmacology, Faculty of Pharmacy, University of Debrecen, 4032 Debrecen, Hungary; (K.S.); (R.K.); (A.G.); (A.C.); (A.F.); (I.B.)
| | - Adina Fésüs
- Department of Pharmacology, Faculty of Pharmacy, University of Debrecen, 4032 Debrecen, Hungary; (K.S.); (R.K.); (A.G.); (A.C.); (A.F.); (I.B.)
- Institute of Healthcare Industry, University of Debrecen, 4032 Debrecen, Hungary
| | - Eszter Boglárka Lőrincz
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Debrecen, 4032 Debrecen, Hungary; (E.B.L.); (F.D.P.); (P.H.); (A.B.)
- Doctoral School of Pharmaceutical Sciences, University of Debrecen, 4032 Debrecen, Hungary
| | - Ferenc Dániel Petróczi
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Debrecen, 4032 Debrecen, Hungary; (E.B.L.); (F.D.P.); (P.H.); (A.B.)
- Doctoral School of Pharmaceutical Sciences, University of Debrecen, 4032 Debrecen, Hungary
| | - Pál Herczegh
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Debrecen, 4032 Debrecen, Hungary; (E.B.L.); (F.D.P.); (P.H.); (A.B.)
| | - István Bak
- Department of Pharmacology, Faculty of Pharmacy, University of Debrecen, 4032 Debrecen, Hungary; (K.S.); (R.K.); (A.G.); (A.C.); (A.F.); (I.B.)
| | - Anikó Borbás
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Debrecen, 4032 Debrecen, Hungary; (E.B.L.); (F.D.P.); (P.H.); (A.B.)
| | - Ilona Bereczki
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Debrecen, 4032 Debrecen, Hungary; (E.B.L.); (F.D.P.); (P.H.); (A.B.)
- National Laboratory of Virology, Szentágothai Research Centre, 7624 Pécs, Hungary
- ELKH-DE Pharmamodul Research Team, University of Debrecen, 4032 Debrecen, Hungary
| | - István Lekli
- Department of Pharmacology, Faculty of Pharmacy, University of Debrecen, 4032 Debrecen, Hungary; (K.S.); (R.K.); (A.G.); (A.C.); (A.F.); (I.B.)
| |
Collapse
|
26
|
Incze E, Mangó K, Fekete F, Kiss ÁF, Póti Á, Harkó T, Moldvay J, Szüts D, Monostory K. Potential Association of Cytochrome P450 Copy Number Alteration in Tumour with Chemotherapy Resistance in Lung Adenocarcinoma Patients. Int J Mol Sci 2023; 24:13380. [PMID: 37686184 PMCID: PMC10487787 DOI: 10.3390/ijms241713380] [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: 08/01/2023] [Revised: 08/25/2023] [Accepted: 08/26/2023] [Indexed: 09/10/2023] Open
Abstract
Resistance to anticancer agents is a major obstacle to efficacious tumour therapy and responsible for high cancer-related mortality rates. Some resistance mechanisms are associated with pharmacokinetic variability in anticancer drug exposure due to genetic polymorphisms of drug-metabolizing cytochrome P450 (CYP) enzymes, whereas variations in tumoural metabolism as a consequence of CYP copy number alterations are assumed to contribute to the selection of resistant cells. A high-throughput quantitative polymerase chain reaction (qPCR)-based method was developed for detection of CYP copy number alterations in tumours, and a scoring system improved the identification of inappropriate reference genes that underwent deletion/multiplication in tumours. The copy numbers of both the target (CYP2C8, CYP3A4) and the reference genes (ALB, B2M, BCKDHA, F5, CD36, MPO, TBP, RPPH1) established in primary lung adenocarcinoma by the qPCR-based method were congruent with those determined by next-generation sequencing (for 10 genes, slope = 0.9498, r2 = 0.72). In treatment naïve adenocarcinoma samples, the copy number multiplication of paclitaxel-metabolizing CYP2C8 and/or CYP3A4 was more prevalent in non-responder patients with progressive disease/exit than in responders with complete remission. The high-throughput qPCR-based method can become an alternative approach to next-generation sequencing in routine clinical practice, and identification of altered CYP copy numbers may provide a promising biomarker for therapy-resistant tumours.
Collapse
Affiliation(s)
- Evelyn Incze
- Institute of Enzymology, Research Centre for Natural Sciences, Magyar Tudósok 2, H-1117 Budapest, Hungary; (E.I.); (K.M.); (F.F.); (Á.F.K.); (Á.P.); (D.S.)
- Doctoral School of Pharmaceutical Sciences, Semmelweis University, Üllői 26, H-1085 Budapest, Hungary
| | - Katalin Mangó
- Institute of Enzymology, Research Centre for Natural Sciences, Magyar Tudósok 2, H-1117 Budapest, Hungary; (E.I.); (K.M.); (F.F.); (Á.F.K.); (Á.P.); (D.S.)
- Doctoral School of Pharmaceutical Sciences, Semmelweis University, Üllői 26, H-1085 Budapest, Hungary
| | - Ferenc Fekete
- Institute of Enzymology, Research Centre for Natural Sciences, Magyar Tudósok 2, H-1117 Budapest, Hungary; (E.I.); (K.M.); (F.F.); (Á.F.K.); (Á.P.); (D.S.)
| | - Ádám Ferenc Kiss
- Institute of Enzymology, Research Centre for Natural Sciences, Magyar Tudósok 2, H-1117 Budapest, Hungary; (E.I.); (K.M.); (F.F.); (Á.F.K.); (Á.P.); (D.S.)
| | - Ádám Póti
- Institute of Enzymology, Research Centre for Natural Sciences, Magyar Tudósok 2, H-1117 Budapest, Hungary; (E.I.); (K.M.); (F.F.); (Á.F.K.); (Á.P.); (D.S.)
| | - Tünde Harkó
- Department of Pathology, National Korányi Institute of Pulmonology, Pihenő 1, H-1121 Budapest, Hungary;
| | - Judit Moldvay
- 1st Department of Pulmonology, National Korányi Institute of Pulmonology, Pihenő 1, H-1121 Budapest, Hungary;
| | - Dávid Szüts
- Institute of Enzymology, Research Centre for Natural Sciences, Magyar Tudósok 2, H-1117 Budapest, Hungary; (E.I.); (K.M.); (F.F.); (Á.F.K.); (Á.P.); (D.S.)
| | - Katalin Monostory
- Institute of Enzymology, Research Centre for Natural Sciences, Magyar Tudósok 2, H-1117 Budapest, Hungary; (E.I.); (K.M.); (F.F.); (Á.F.K.); (Á.P.); (D.S.)
| |
Collapse
|
27
|
Piszter G, Bálint Z, Kertész K, Szatmári L, Sramkó G, Biró LP. Breeding Polyommatus icarus Serves as a Large-Scale and Environmentally Friendly Source of Precisely Tuned Photonic Nanoarchitectures. Insects 2023; 14:716. [PMID: 37623426 PMCID: PMC10455773 DOI: 10.3390/insects14080716] [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: 07/14/2023] [Revised: 08/11/2023] [Accepted: 08/15/2023] [Indexed: 08/26/2023]
Abstract
The colour of the butterfly wing serves as an important sexual and species-specific signal. Some species produce structural colouration by developing wing scales with photonic nanoarchitectures. These nanostructures are highly conservative, allowing only a ±10 nm peak wavelength deviation in the reflectance spectra of the blue structural colour in natural Common Blue (Polyommatus icarus) populations. They are promising templates of future artificial photonic materials and can be used in potential applications, too. In this work, we present methodology and infrastructure for breeding laboratory populations of Common Blue as a cost-effective and environmentally friendly source of nanostructures. Our technology enables the production of approximately 7500 wing samples, equivalent to 0.5-1 m2 of photonic nanoarchitecture surface within a year in a single custom-made insectarium. To ascertain the reliability of this method, we compared reflectance properties between different populations from distant geographic locations. We also provide genetic background of these populations using microsatellite genotyping. The laboratory population showed genetic erosion, but even after four generations of inbreeding, only minimal shifts in the structural colouration were observed, indicating that wild Common Blue populations may be a reliable source of raw material for photonic surfaces.
Collapse
Affiliation(s)
- Gábor Piszter
- Centre for Energy Research, Institute of Technical Physics and Materials Science, Konkoly-Thege Miklós út 29-33, H-1121 Budapest, Hungary
| | - Zsolt Bálint
- Centre for Energy Research, Institute of Technical Physics and Materials Science, Konkoly-Thege Miklós út 29-33, H-1121 Budapest, Hungary
- Hungarian Natural History Museum, Baross utca 13, H-1121 Budapest, Hungary
| | - Krisztián Kertész
- Centre for Energy Research, Institute of Technical Physics and Materials Science, Konkoly-Thege Miklós út 29-33, H-1121 Budapest, Hungary
| | - Lajos Szatmári
- Hungarian Natural History Museum, Baross utca 13, H-1121 Budapest, Hungary
- ELKH-DE Conservation Biology Research Group, Egyetem tér 1, H-4032 Debrecen, Hungary
| | - Gábor Sramkó
- ELKH-DE Conservation Biology Research Group, Egyetem tér 1, H-4032 Debrecen, Hungary
- Department of Botany, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary
| | - László Péter Biró
- Centre for Energy Research, Institute of Technical Physics and Materials Science, Konkoly-Thege Miklós út 29-33, H-1121 Budapest, Hungary
| |
Collapse
|
28
|
Mihály Z, István L, Czakó C, Benyó F, Borzsák S, Varga A, Magyar-Stang R, Banga PV, Élő Á, Debreczeni R, Kovács I, Sótonyi P. The Effect of Circle of Willis Morphology on Retinal Blood Flow in Patients with Carotid Stenosis Measured by Optical Coherence Tomography Angiography. J Clin Med 2023; 12:5335. [PMID: 37629376 PMCID: PMC10455622 DOI: 10.3390/jcm12165335] [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: 07/10/2023] [Revised: 08/11/2023] [Accepted: 08/12/2023] [Indexed: 08/27/2023] Open
Abstract
The Circle of Willis (CoW) is the main collateral system, and its morphological variants are more common in patients who have severe carotid artery stenosis. Earlier data suggest that optical coherence tomography angiography (OCTA) may help to assess the changes in cerebral vascular perfusion by imaging the retinal blood flow. In this single-center prospective clinical study, patients scheduled for carotid endarterectomy (CEA) underwent preoperative computed tomography angiography (CTA) of the extra- and intracranial cerebral circulation. OCTA imaging was performed one week before surgery and postoperatively one month later. The patients were divided into two subgroups based on CTA evaluation of CoW: compromised CoW or non-compromised CoW (containing hypoplastic and normal segments). The effect of the patient's age, OCTA scan quality (SQ), CoW morphology, laterality, and surgery on superficial capillary vessel density (VD) in the macula were assessed in multivariable regression models using linear mixed models. We found that VD significantly decreased with aging (-0.12%; 95%CI: -0.07--0.15; p < 0.001) and was significantly higher in patients with non-compromised CoW morphology (by 0.87% 95%CI (0.26-1.50); p = 0.005). After CEA, retinal blood flow significantly improved by 0.71% (95%CI: 0.18-1.25; p = 0.01). These results suggest that in the case of carotid artery occlusion, patients with non-compromised CoW have more preserved ocular blood flow than subjects with compromised CoW due to remodeling of the intra-orbital blood flow. Measuring the retinal blood flow might be used as a relevant and sensitive indicator of collateral cerebrovascular circulation.
Collapse
Affiliation(s)
- Zsuzsanna Mihály
- Department of Vascular and Endovascular Surgery Heart and Vascular Centre, Semmelweis University, 1122 Budapest, Hungary; (Z.M.)
| | - Lilla István
- Department of Ophthalmology, Semmelweis University, 1085 Budapest, Hungary (Á.É.)
| | - Cecilia Czakó
- Department of Ophthalmology, Semmelweis University, 1085 Budapest, Hungary (Á.É.)
| | - Fruzsina Benyó
- Department of Ophthalmology, Semmelweis University, 1085 Budapest, Hungary (Á.É.)
| | - Sarolta Borzsák
- Department of Vascular and Endovascular Surgery Heart and Vascular Centre, Semmelweis University, 1122 Budapest, Hungary; (Z.M.)
| | - Andrea Varga
- Department of Vascular and Endovascular Surgery Heart and Vascular Centre, Semmelweis University, 1122 Budapest, Hungary; (Z.M.)
| | - Rita Magyar-Stang
- Department of Neurology, Semmelweis University, 1085 Budapest, Hungary (R.D.)
| | - Péter Vince Banga
- Department of Vascular and Endovascular Surgery Heart and Vascular Centre, Semmelweis University, 1122 Budapest, Hungary; (Z.M.)
| | - Ágnes Élő
- Department of Ophthalmology, Semmelweis University, 1085 Budapest, Hungary (Á.É.)
| | - Róbert Debreczeni
- Department of Neurology, Semmelweis University, 1085 Budapest, Hungary (R.D.)
| | - Illés Kovács
- Department of Ophthalmology, Semmelweis University, 1085 Budapest, Hungary (Á.É.)
- Department of Ophthalmology, Weill Cornell Medical College, New York, NY 10021, USA
- Department of Clinical Ophthalmology, Faculty of Health Sciences, Semmelweis University, 1085 Budapest, Hungary
| | - Péter Sótonyi
- Department of Vascular and Endovascular Surgery Heart and Vascular Centre, Semmelweis University, 1122 Budapest, Hungary; (Z.M.)
| |
Collapse
|
29
|
Piros K, Perge P, Salló Z, Herczeg S, Nagy VK, Osztheimer I, Merkely B, Gellér L, Szegedi N. Zero fluoroscopy ablation for atrioventricular nodal reentrant tachycardia and typical atrial flutter is equally safe and effective with EnSite NavX, Carto3, and Rhythmia mapping systems. Front Cardiovasc Med 2023; 10:1185187. [PMID: 37560116 PMCID: PMC10407085 DOI: 10.3389/fcvm.2023.1185187] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Accepted: 07/10/2023] [Indexed: 08/11/2023] Open
Abstract
PURPOSE Our purpose was to compare the procedural characteristics, success rate, and complication rate of the conventional fluoroscopic (CF) and the zero-fluoroscopic (ZF) approach in patients undergoing catheter ablation of AVNRT or typical atrial flutter (Aflu). METHODS 186 consecutive patients with an indication for AVNRT or Aflu ablation were enrolled. Based on the operator's preference, the patients were assigned to either CF or ZF group. In the ZF group EnSite NavX, Carto3, or Rhythmia EAMS were used for catheter guidance. RESULTS The median age was 56 (IQR = 42-68) years, 144 patients had AVNRT, and 42 had Aflu ablation. CF approach was chosen in 123 cases, while ZF in 63 cases. ZF approach was used more often in case of AVNRT patients [56 (39%) vs. 7 (17%), p = 0.006] and in the case of female patients [43 (68%) vs. 20 (32%), p = 0.008]. Acute procedural success was obtained in all cases. There was no difference in the complication rate (1 vs. 1, p > 0.99) between the two groups. No difference was found regarding the procedure time between the CF and ZF groups [CF: 55 (46-60) min, ZF 60 (47-65) min; p = 0.487] or in the procedure time for the different EAMS [EnSite NavX: 58 (50-63) min, Carto3: 60 (44.5-66.3) min, Rhythmia: 55 (35-69) min; p = 0.887]. A similar success rate was seen at the 3-month follow-up in the two groups [41 (100%) vs. 96 (97%); p = 0.55]. DISCUSSION The ZF approach demonstrated non-inferiority in safety and efficacy compared with CF for the AVNRT and Aflu ablations.
Collapse
|
30
|
Anker P, Fésűs L, Kiss N, Lengyel A, Pinti É, Lihacova I, Lihachev A, Plorina EV, Fekete G, Medvecz M. A Cross-Sectional Study of the Dermatological Manifestations of Patients with Fabry Disease and the Assessment of Angiokeratomas with Multimodal Imaging. Diagnostics (Basel) 2023; 13:2368. [PMID: 37510112 PMCID: PMC10378346 DOI: 10.3390/diagnostics13142368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 06/24/2023] [Accepted: 07/12/2023] [Indexed: 07/30/2023] Open
Abstract
Fabry disease (FD) is a multisystemic X-linked lysosomal storage disease that presents with angiokeratomas (AKs). Our objective was to investigate the clinical and morphologic features of AKs and to present two experimental techniques, multispectral imaging (MSI) and non-linear microscopy (NLM). A thorough dermatological examination was carried out in our 26 FD patients and dermoscopic images (n = 136) were evaluated for specific structures. MSI was used for the evaluation of AKs in seven patients. NLM was carried out to obtain histology samples of two AKs and two hemangiomas. Although AKs were the most common manifestation, the majority of patients presented an atypical distribution and appearance, which could cause a diagnostic challenge. Dermoscopy revealed lacunae (65%) and dotted vessels (56%) as the most common structures, with a whitish veil present in only 25%. Autofluorescence (405 nm) and diffuse reflectance (526 nm) images showed the underlying vasculature more prominently compared to dermoscopy. Using NLM, AKs and hemangiomas could be distinguished based on morphologic features. The clinical heterogeneity of FD can result in a diagnostic delay. Although AKs are often the first sign of FD, their presentation is diverse. A thorough dermatological examination and the evaluation of other cutaneous signs are essential for the early diagnosis of FD.
Collapse
Affiliation(s)
- Pálma Anker
- Department of Dermatology, Venereology and Dermatooncology, Semmelweis University, 1085 Budapest, Hungary
| | - Luca Fésűs
- Department of Dermatology, Venereology and Dermatooncology, Semmelweis University, 1085 Budapest, Hungary
- Institute for Solid State Physics and Optics, Wigner RCP, 1525 Budapest, Hungary
| | - Norbert Kiss
- Department of Dermatology, Venereology and Dermatooncology, Semmelweis University, 1085 Budapest, Hungary
| | - Anna Lengyel
- Pediatric Center, Semmelweis University, 1085 Budapest, Hungary
| | - Éva Pinti
- Pediatric Center, Semmelweis University, 1085 Budapest, Hungary
| | - Ilze Lihacova
- Institute of Atomic Physics and Spectroscopy, University of Latvia, 1586 Riga, Latvia
| | - Alexey Lihachev
- Institute of Atomic Physics and Spectroscopy, University of Latvia, 1586 Riga, Latvia
| | - Emilija Vija Plorina
- Institute of Atomic Physics and Spectroscopy, University of Latvia, 1586 Riga, Latvia
| | - György Fekete
- Pediatric Center, Semmelweis University, 1085 Budapest, Hungary
| | - Márta Medvecz
- Department of Dermatology, Venereology and Dermatooncology, Semmelweis University, 1085 Budapest, Hungary
| |
Collapse
|
31
|
Tamargo J, Agewall S, Borghi C, Ceconi C, Cerbai E, Dan GA, Ferdinandy P, Grove EL, Rocca B, Sulzgruber P, Semb AG, Sossalla S, Niessner A, Kaski JC, Dobrev D. New pharmacological agents and novel cardiovascular pharmacotherapy strategies in 2022. Eur Heart J Cardiovasc Pharmacother 2023; 9:pvad034. [PMID: 37169875 PMCID: PMC10236523 DOI: 10.1093/ehjcvp/pvad034] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 04/10/2023] [Accepted: 05/10/2023] [Indexed: 05/13/2023]
Abstract
Cardiovascular diseases (CVD) remain the leading cause of death worldwide and pharmacotherapy of most of them is suboptimal. Thus, there is a clear unmet clinical need to develop new pharmacological strategies with greater efficacy and better safety profiles. In this review, we summarize the most relevant advances in cardiovascular pharmacology in 2022 including the approval of first-in-class drugs that open new avenues for the treatment of obstructive hypertrophic cardiomyopathy (mavacamten), type 2 diabetes mellitus (tirzepatide), and heart failure (HF) independent of left ventricular ejection fraction (sodium-glucose cotransporter 2 inhibitors). We also dealt with fixed dose combination therapies repurposing different formulations of "old" drugs with well-known efficacy and safety for the treatment of patients with acute decompensated HF (acetazolamide plus loop diuretics), atherosclerotic cardiovascular disease (moderate-dose statin plus ezetimibe), Marfan syndrome (angiotensin receptor blockers plus β-blockers), and secondary cardiovascular prevention (i.e. low-dose aspirin, ramipril and atorvastatin), thereby filling existing gaps in knowledge, and opening new avenues for the treatment of CVD. Clinical trials confirming the role of dapagliflozin in patients with HF and mildly reduced or preserved ejection fraction, long-term evolocumab to reduce the risk of cardiovascular events, vitamin K antagonists for stroke prevention in patients with rheumatic heart disease-associated atrial fibrillation, antibiotic prophylaxis in patients at high risk for infective endocarditis before invasive dental procedures, and vutrisiran for the treatment of hereditary transthyretin-related amyloidosis with polyneuropathy were also reviewed. Finally, we briefly discuss recent clinical trials suggesting that FXIa inhibitors may have the potential to uncouple thrombosis from hemostasis and attenuate/prevent thromboembolic events with minimal disruption of hemostasis.
Collapse
Affiliation(s)
- Juan Tamargo
- Department of Pharmacology and Toxicology, School of Medicine, Universidad Complutense, Instituto de Investigación Sanitaria Gregorio Marañón, Plaza de Ramón y Cajal s/n, Madrid 28040, Spain
| | - Stefan Agewall
- Department of Cardiology, Oslo University Hospital and Institute of Clinical Medicine, Oslo University, Oslo, Norvay
| | - Claudio Borghi
- Department of Cardiovascular Medicine, University of Bologna-IRCCS AOU S. Orsola, Bologna, Italy
| | - Claudio Ceconi
- Unit of Cardiologia, ASST Garda, Desenzano del Garda, Italy
| | - Elisabetta Cerbai
- Department Neurofarba, Section of Pharmacology and Toxicology, University of Florence, Florence, Italy
| | - Gheorghe A Dan
- “Carol Davila” University of Medicine, Colentina University Hospital, Bucharest, Romania
| | - Péter Ferdinandy
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary
- Pharmahungary Group, Szeged, Hungary
| | - Erik Lerkevang Grove
- Department of Cardiology, Aarhus University Hospital, Aarhus, Denmark
- Department of Clinical Medicine, Faculty of Health, Aarhus University, Aarhus, Denmark
| | - Bianca Rocca
- Section of Pharmacology, Catholic University School of Medicine, Rome, Italy
| | - Patrick Sulzgruber
- Department of Medicine, Division of Cardiology, Medical University of Vienna, Vienna, Austria
| | - Anne Grete Semb
- Preventive Cario-Rheuma Clinic, Division of Research and Innovation, REMEDY Centre, Diakonhjemmet Hospital, Oslo, Norway
| | - Samuel Sossalla
- Department of Internal Medicine II, University Regensburg, Regensburg, Germany
| | - Alexander Niessner
- Department of Internal Medicine II, Division of Cardiology, Medical University of Vienna, Vienna, Austria
| | - Juan Carlos Kaski
- Molecular and Clinical Sciences Research Institute, St. George's, University of London, Cranmer Terrace, London SW17 0RE, UK
| | - Dobromir Dobrev
- Institute of Pharmacology, West-German Heart and Vascular Centre, University Duisburg-Essen, Essen, Germany
- Department of Medicine, Montreal Heart Institute and Université de Montréal, Montréal, Canada
- Department of Molecular Physiology & Biophysics, Baylor College of Medicine, Houston, TX, USA
| |
Collapse
|
32
|
Sótonyi P, Berczeli M, Gyánó M, Legeza P, Mihály Z, Csobay-Novák C, Pataki Á, Juhász V, Góg I, Szigeti K, Osváth S, Kiss JP, Nemes B. Radiation Exposure Reduction by Digital Variance Angiography in Lower Limb Angiography: A Randomized Controlled Trial. J Cardiovasc Dev Dis 2023; 10:jcdd10050198. [PMID: 37233165 DOI: 10.3390/jcdd10050198] [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: 03/19/2023] [Revised: 04/24/2023] [Accepted: 04/28/2023] [Indexed: 05/27/2023] Open
Abstract
BACKGROUND digital variance angiography (DVA) provides higher image quality than digital subtraction angiography (DSA). This study investigates whether the quality reserve of DVA allows for radiation dose reduction during lower limb angiography (LLA), and compares the performance of two DVA algorithms. METHODS this prospective block-randomized controlled study enrolled 114 peripheral arterial disease patients undergoing LLA into normal dose (ND, 1.2 µGy/frame, n = 57) or low-dose (LD, 0.36 µGy/frame, n = 57) groups. DSA images were generated in both groups, DVA1 and DVA2 images were generated in the LD group. Total and DSA-related radiation dose area product (DAP) were analyzed. Image quality was assessed on a 5-grade Likert scale by six readers. RESULTS the total and DSA-related DAP were reduced by 38% and 61% in the LD group. The overall visual evaluation scores (median (IQR)) of LD-DSA (3.50 (1.17)) were significantly lower than the ND-DSA scores (3.83 (1.00), p < 0.001). There was no difference between ND-DSA and LD-DVA1 (3.83 (1.17)), but the LD-DVA2 scores were significantly higher (4.00 (0.83), p < 0.01). The difference between LD-DVA2 and LD-DVA1 was also significant (p < 0.001). CONCLUSIONS DVA significantly reduced the total and DSA-related radiation dose in LLA, without affecting the image quality. LD-DVA2 images outperformed LD-DVA1, therefore DVA2 might be especially beneficial in lower limb interventions.
Collapse
Affiliation(s)
- Péter Sótonyi
- Department of Vascular and Endovascular Surgery, Heart and Vascular Center, Semmelweis University, Városmajor utca 68, 1122 Budapest, Hungary
| | - Márton Berczeli
- Department of Vascular and Endovascular Surgery, Heart and Vascular Center, Semmelweis University, Városmajor utca 68, 1122 Budapest, Hungary
- Kinepict Health Ltd., Szilágyi Erzsébet Fasor 31, 1027 Budapest, Hungary
| | - Marcell Gyánó
- Kinepict Health Ltd., Szilágyi Erzsébet Fasor 31, 1027 Budapest, Hungary
- Department of Interventional Radiology, Heart and Vascular Center, Semmelweis University, Városmajor utca 68, 1122 Budapest, Hungary
| | - Péter Legeza
- Department of Vascular and Endovascular Surgery, Heart and Vascular Center, Semmelweis University, Városmajor utca 68, 1122 Budapest, Hungary
- Kinepict Health Ltd., Szilágyi Erzsébet Fasor 31, 1027 Budapest, Hungary
| | - Zsuzsanna Mihály
- Department of Vascular and Endovascular Surgery, Heart and Vascular Center, Semmelweis University, Városmajor utca 68, 1122 Budapest, Hungary
- Kinepict Health Ltd., Szilágyi Erzsébet Fasor 31, 1027 Budapest, Hungary
| | - Csaba Csobay-Novák
- Department of Interventional Radiology, Heart and Vascular Center, Semmelweis University, Városmajor utca 68, 1122 Budapest, Hungary
| | - Ákos Pataki
- Department of Interventional Radiology, Heart and Vascular Center, Semmelweis University, Városmajor utca 68, 1122 Budapest, Hungary
| | - Viktória Juhász
- Department of Vascular and Endovascular Surgery, Heart and Vascular Center, Semmelweis University, Városmajor utca 68, 1122 Budapest, Hungary
| | - István Góg
- Kinepict Health Ltd., Szilágyi Erzsébet Fasor 31, 1027 Budapest, Hungary
- Department of Vascular Surgery, Hungarian Defence Forces Medical Centre, Róbert Károly körút 44, 1134 Budapest, Hungary
| | - Krisztián Szigeti
- Kinepict Health Ltd., Szilágyi Erzsébet Fasor 31, 1027 Budapest, Hungary
- Department of Biophysics and Radiation Biology, Semmelweis University, Tűzoltó u. 37-47, 1094 Budapest, Hungary
| | - Szabolcs Osváth
- Kinepict Health Ltd., Szilágyi Erzsébet Fasor 31, 1027 Budapest, Hungary
- Department of Biophysics and Radiation Biology, Semmelweis University, Tűzoltó u. 37-47, 1094 Budapest, Hungary
| | - János P Kiss
- Kinepict Health Ltd., Szilágyi Erzsébet Fasor 31, 1027 Budapest, Hungary
- Department of Biophysics and Radiation Biology, Semmelweis University, Tűzoltó u. 37-47, 1094 Budapest, Hungary
| | - Balázs Nemes
- Department of Interventional Radiology, Heart and Vascular Center, Semmelweis University, Városmajor utca 68, 1122 Budapest, Hungary
| |
Collapse
|
33
|
Lucatelli P, Rocco B, Ciaglia S, Teodoli L, Argirò R, Guiu B, Saba L, Vallati G, Spiliopoulos S, Patrone L, Gyánó M, Góg I, Osváth S, Szigeti K, Kiss JP, Catalano C. Possible use of Digital Variance Angiography in Liver Transarterial Chemoembolization: A Retrospective Observational Study. Cardiovasc Intervent Radiol 2023; 46:635-642. [PMID: 37076552 PMCID: PMC10156832 DOI: 10.1007/s00270-023-03420-2] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Accepted: 03/11/2023] [Indexed: 04/21/2023]
Abstract
PURPOSE Digital variance angiography (DVA), a recently developed image processing technology, provided higher contrast-to-noise ratio (CNR) and better image quality (IQ) during lower limb interventions than digital subtraction angiography (DSA). Our aim was to investigate whether this quality improvement can be observed also during liver transarterial chemoembolization (TACE). MATERIALS AND METHODS We retrospectively compared the CNR and IQ parameters of DSA and DVA images from 25 patients (65% male, mean ± SD age: 67.5 ± 11.2 years) underwent TACE intervention at our institute. CNR was calculated on 50 images. IQ of every image set was evaluated by 5 experts using 4-grade Likert scales. Both single image evaluation and paired image comparison were performed in a blinded and randomized manner. The diagnostic value was evaluated based on the possibility to identify lesions and feeding arteries. RESULTS DVA provided significantly higher CNR (mean CNRDVA/CNRDSA was 1.33). DVA images received significantly higher individual Likert score (mean ± SEM 3.34 ± 0,08 vs. 2.89 ± 0.11, Wilcoxon signed-rank p < 0.001) and proved to be superior also in paired comparisons (median comparison score 1.60 [IQR:2.40], one sample Wilcoxon p < 0.001 compared to equal quality level). DSA could not detect lesion and feeding artery in 28 and 36% of cases, and allowed clear detection only in 22% and 16%, respectively. In contrast, DVA failed only in 8 and 18% and clearly revealed lesions and feeding arteries in 32 and 26%, respectively. CONCLUSION In our study, DVA provided higher quality images and better diagnostic insight than DSA; therefore, DVA could represent a useful tool in liver TACE interventions. LEVEL OF EVIDENCE III Non-consecutive study.
Collapse
Affiliation(s)
- Pierleone Lucatelli
- University Hospital "Policlinico Umberto I, Sapienza University of Rome, Rome, Italy
| | - Bianca Rocco
- University Hospital "Policlinico Umberto I, Sapienza University of Rome, Rome, Italy.
| | - Simone Ciaglia
- University Hospital "Policlinico Umberto I, Sapienza University of Rome, Rome, Italy
| | - Leonardo Teodoli
- University Hospital "Policlinico Umberto I, Sapienza University of Rome, Rome, Italy
| | - Renato Argirò
- Department of Interventional Radiology, University of Rome Tor Vergata, Rome, Italy
| | - Boris Guiu
- Montpellier University Hospital, Montpellier, France
| | - Luca Saba
- Department of Medical Sciences, University of Cagliari, Cagliari, Italy
| | - Giulio Vallati
- Interventional Radiology Unit of "IRCCS Istituto Nazionale Tumori Regina Elena", Rome, Italy
| | - Stavros Spiliopoulos
- Department of Radiology, Interventional Radiology Unit, National and Kapodistrian University of Athens, Athens, Greece
| | - Lorenzo Patrone
- West London Vascular and Interventional Centre, Northwick Park Hospital, London, UK
| | - Marcell Gyánó
- Department of Interventional Radiology, Heart and Vascular Center, Semmelweis University, Budapest, Hungary
- Kinepict Health Ltd, Budapest, Hungary
| | - István Góg
- Department of Interventional Radiology, Heart and Vascular Center, Semmelweis University, Budapest, Hungary
- Department of Vascular and Endovascular Surgery, Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Szabolcs Osváth
- Kinepict Health Ltd, Budapest, Hungary
- Department of Biophysics and Radiation Biology, Semmelweis University, Budapest, Hungary
| | - Krisztian Szigeti
- Kinepict Health Ltd, Budapest, Hungary
- Department of Biophysics and Radiation Biology, Semmelweis University, Budapest, Hungary
| | | | - Carlo Catalano
- University Hospital "Policlinico Umberto I, Sapienza University of Rome, Rome, Italy
| |
Collapse
|
34
|
Kohler ZM, Trencsenyi G, Juhasz L, Zvara A, Szabo JP, Dux L, Puskas LG, Rovo L, Keller-Pinter A. Tilorone increases glucose uptake in vivo and in skeletal muscle cells by enhancing Akt2/AS160 signaling and glucose transporter levels. J Cell Physiol 2023; 238:1080-1094. [PMID: 37012691 DOI: 10.1002/jcp.30998] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 01/26/2023] [Accepted: 03/03/2023] [Indexed: 04/05/2023]
Abstract
Skeletal muscle plays a major role in whole-body glucose metabolism. Insulin resistance in skeletal muscle is characterized by decreased insulin-stimulated glucose uptake resulting from impaired intracellular trafficking and decreased glucose transporter 4 (GLUT4) expression. In this study, we illustrated that tilorone, a low-molecular-weight antiviral agent, improves glucose uptake in vitro and in vivo. Tilorone increased bone morphogenetic protein (BMP) signaling in C2C12 myoblasts, the transcription of multiple BMPs (BMP2, BMP4, BMP7, and BMP14), Smad4 expression, and the phosphorylation of BMP-mediated Smad1/5/8. The activation of Akt2/AS160 (TBC1D4) signaling, the critical regulator of GLUT4 translocation, was also increased, as well as the levels of GLUT4 and GLUT1, leading to enhanced uptake of the radioactively labeled glucose analog 18 F-fluoro-2-deoxyglucose (18 FDG). However, this excess glucose content did not result in increased ATP formation by mitochondrial respiration; both basal and ATP-linked respiration were diminished, thereby contributing to the induction of AMPK. In differentiated myotubes, AS160 phosphorylation and 18 FDG uptake also increased. Moreover, tilorone administration further increased insulin-stimulated phosphorylation of Akt2 and glucose uptake of myotubes indicating an insulin-sensitizing effect. Importantly, during in vivo experiments, the systemic administration of tilorone resulted in increased 18 FDG uptake of skeletal muscle, liver, and adipose tissue in C57BL/6 mice. Our results provide new perspectives for the treatment of type 2 diabetes, which has a limited number of treatments that regulate protein expression or translocation.
Collapse
Affiliation(s)
- Zoltan M Kohler
- Department of Biochemistry, Albert Szent-Gyorgyi Medical School, University of Szeged, Szeged, Hungary
| | - Gyorgy Trencsenyi
- Department of Medical Imaging, Division of Nuclear Medicine and Translational Imaging, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Laszlo Juhasz
- Institute of Surgical Research, Albert Szent-Gyorgyi Medical School, University of Szeged, Szeged, Hungary
| | - Agnes Zvara
- Laboratory of Functional Genomics, Biological Research Centre, Eotvos Lorand Research Network, Szeged, Hungary
| | - Judit P Szabo
- Department of Medical Imaging, Division of Nuclear Medicine and Translational Imaging, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Laszlo Dux
- Department of Biochemistry, Albert Szent-Gyorgyi Medical School, University of Szeged, Szeged, Hungary
| | - Laszlo G Puskas
- Laboratory of Functional Genomics, Biological Research Centre, Eotvos Lorand Research Network, Szeged, Hungary
| | - Laszlo Rovo
- Department of Oto- Rhino-Laryngology and Head and Neck Surgery, University of Szeged, Szeged, Hungary
| | - Aniko Keller-Pinter
- Department of Biochemistry, Albert Szent-Gyorgyi Medical School, University of Szeged, Szeged, Hungary
| |
Collapse
|
35
|
Heusch G, Bøtker HE, Ferdinandy P, Schulz R. Primordial non-responsiveness: a neglected obstacle to cardioprotection. Eur Heart J 2023; 44:1687-1689. [PMID: 36943315 DOI: 10.1093/eurheartj/ehad160] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 01/31/2023] [Accepted: 03/04/2022] [Indexed: 03/23/2023] Open
Affiliation(s)
- Gerd Heusch
- Institute for Pathophysiology, West German Heart and Vascular Center, University of Essen Medical School, Hufelandstr. 55, 45147 Essen, Germany
| | - Hans Erik Bøtker
- Department of Cardiology, Aarhus University Hospital, Palle Juul-Jensen Blvd. 99, 8200 Aarhus N, Denmark
- Institute of Clinical Medicine, Aarhus University, Palle Juul-Jensen Blvd. 82, 8200 Aarhus N, Denmark
| | - Péter Ferdinandy
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, Nagyvárad tér 4, 1089 Budapest, Hungary
- Pharmahungary Group, Hajnoczy u 6, 6722 Szeged, Hungary
| | - Rainer Schulz
- Institute of Physiology, Justus-Liebig-Universität, 35392 Giessen, Germany
| |
Collapse
|
36
|
Babity M, Zamodics M, Konig A, Kiss AR, Horvath M, Gregor Z, Rakoczi R, Kovacs E, Fabian A, Tokodi M, Sydo N, Csulak E, Juhasz V, Lakatos BK, Vago H, Kovacs A, Merkely B, Kiss O. Cardiopulmonary examinations of athletes returning to high-intensity sport activity following SARS-CoV-2 infection. Sci Rep 2022; 12:21686. [PMID: 36522351 PMCID: PMC9753018 DOI: 10.1038/s41598-022-24486-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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 11/16/2022] [Indexed: 12/23/2022] Open
Abstract
After SARS-CoV-2 infection, strict recommendations for return-to-sport were published. However, data are insufficient about the long-term effects on athletic performance. After suffering SARS-CoV-2 infection, and returning to maximal-intensity trainings, control examinations were performed with vita-maxima cardiopulmonary exercise testing (CPET). From various sports, 165 asymptomatic elite athletes (male: 122, age: 20y (IQR: 17-24y), training:16 h/w (IQR: 12-20 h/w), follow-up:93.5 days (IQR: 66.8-130.0 days) were examined. During CPET examinations, athletes achieved 94.7 ± 4.3% of maximal heart rate, 50.9 ± 6.0 mL/kg/min maximal oxygen uptake (V̇O2max), and 143.7 ± 30.4L/min maximal ventilation. Exercise induced arrhythmias (n = 7), significant horizontal/descending ST-depression (n = 3), ischemic heart disease (n = 1), hypertension (n = 7), slightly elevated pulmonary pressure (n = 2), and training-related hs-Troponin-T increase (n = 1) were revealed. Self-controlled CPET comparisons were performed in 62 athletes: due to intensive re-building training, exercise time, V̇O2max and ventilation increased compared to pre-COVID-19 results. However, exercise capacity decreased in 6 athletes. Further 18 athletes with ongoing minor long post-COVID symptoms, pathological ECG (ischemic ST-T changes, and arrhythmias) or laboratory findings (hsTroponin-T elevation) were controlled. Previous SARS-CoV-2-related myocarditis (n = 1), ischaemic heart disease (n = 1), anomalous coronary artery origin (n = 1), significant ventricular (n = 2) or atrial (n = 1) arrhythmias were diagnosed. Three months after SARS-CoV-2 infection, most of the athletes had satisfactory fitness levels. Some cases with SARS-CoV-2 related or not related pathologies requiring further examinations, treatment, or follow-up were revealed.
Collapse
Affiliation(s)
- Mate Babity
- Heart and Vascular Center, Semmelweis University, 68 Varosmajor Street, Budapest, 1122, Hungary
| | - Mark Zamodics
- Heart and Vascular Center, Semmelweis University, 68 Varosmajor Street, Budapest, 1122, Hungary
| | - Albert Konig
- Heart and Vascular Center, Semmelweis University, 68 Varosmajor Street, Budapest, 1122, Hungary
| | - Anna Reka Kiss
- Heart and Vascular Center, Semmelweis University, 68 Varosmajor Street, Budapest, 1122, Hungary
| | - Marton Horvath
- Heart and Vascular Center, Semmelweis University, 68 Varosmajor Street, Budapest, 1122, Hungary
| | - Zsofia Gregor
- Heart and Vascular Center, Semmelweis University, 68 Varosmajor Street, Budapest, 1122, Hungary
| | - Reka Rakoczi
- Heart and Vascular Center, Semmelweis University, 68 Varosmajor Street, Budapest, 1122, Hungary
| | - Eva Kovacs
- Heart and Vascular Center, Semmelweis University, 68 Varosmajor Street, Budapest, 1122, Hungary
| | - Alexandra Fabian
- Heart and Vascular Center, Semmelweis University, 68 Varosmajor Street, Budapest, 1122, Hungary
| | - Marton Tokodi
- Heart and Vascular Center, Semmelweis University, 68 Varosmajor Street, Budapest, 1122, Hungary
| | - Nora Sydo
- Heart and Vascular Center, Semmelweis University, 68 Varosmajor Street, Budapest, 1122, Hungary
- Department of Sports Medicine, Semmelweis University, 68 Varosmajor Street, Budapest, 1122, Hungary
| | - Emese Csulak
- Heart and Vascular Center, Semmelweis University, 68 Varosmajor Street, Budapest, 1122, Hungary
- Department of Sports Medicine, Semmelweis University, 68 Varosmajor Street, Budapest, 1122, Hungary
| | - Vencel Juhasz
- Heart and Vascular Center, Semmelweis University, 68 Varosmajor Street, Budapest, 1122, Hungary
| | - Balint Karoly Lakatos
- Heart and Vascular Center, Semmelweis University, 68 Varosmajor Street, Budapest, 1122, Hungary
| | - Hajnalka Vago
- Heart and Vascular Center, Semmelweis University, 68 Varosmajor Street, Budapest, 1122, Hungary
- Department of Sports Medicine, Semmelweis University, 68 Varosmajor Street, Budapest, 1122, Hungary
| | - Attila Kovacs
- Heart and Vascular Center, Semmelweis University, 68 Varosmajor Street, Budapest, 1122, Hungary
| | - Bela Merkely
- Heart and Vascular Center, Semmelweis University, 68 Varosmajor Street, Budapest, 1122, Hungary.
- Department of Sports Medicine, Semmelweis University, 68 Varosmajor Street, Budapest, 1122, Hungary.
| | - Orsolya Kiss
- Heart and Vascular Center, Semmelweis University, 68 Varosmajor Street, Budapest, 1122, Hungary
- Department of Sports Medicine, Semmelweis University, 68 Varosmajor Street, Budapest, 1122, Hungary
| |
Collapse
|
37
|
van der Velden J, Asselbergs FW, Bakkers J, Batkai S, Bertrand L, Bezzina CR, Bot I, Brundel BJJM, Carrier L, Chamuleau S, Ciccarelli M, Dawson D, Davidson SM, Dendorfer A, Duncker DJ, Eschenhagen T, Fabritz L, Falcão-Pires I, Ferdinandy P, Giacca M, Girao H, Gollmann-Tepeköylü C, Gyongyosi M, Guzik TJ, Hamdani N, Heymans S, Hilfiker A, Hilfiker-Kleiner D, Hoekstra AG, Hulot JS, Kuster DWD, van Laake LW, Lecour S, Leiner T, Linke WA, Lumens J, Lutgens E, Madonna R, Maegdefessel L, Mayr M, van der Meer P, Passier R, Perbellini F, Perrino C, Pesce M, Priori S, Remme CA, Rosenhahn B, Schotten U, Schulz R, Sipido KR, Sluijter JPG, van Steenbeek F, Steffens S, Terracciano CM, Tocchetti CG, Vlasman P, Yeung KK, Zacchigna S, Zwaagman D, Thum T. Animal models and animal-free innovations for cardiovascular research: current status and routes to be explored. Consensus document of the ESC Working Group on Myocardial Function and the ESC Working Group on Cellular Biology of the Heart. Cardiovasc Res 2022; 118:3016-3051. [PMID: 34999816 PMCID: PMC9732557 DOI: 10.1093/cvr/cvab370] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Accepted: 01/05/2022] [Indexed: 01/09/2023] Open
Abstract
Cardiovascular diseases represent a major cause of morbidity and mortality, necessitating research to improve diagnostics, and to discover and test novel preventive and curative therapies, all of which warrant experimental models that recapitulate human disease. The translation of basic science results to clinical practice is a challenging task, in particular for complex conditions such as cardiovascular diseases, which often result from multiple risk factors and comorbidities. This difficulty might lead some individuals to question the value of animal research, citing the translational 'valley of death', which largely reflects the fact that studies in rodents are difficult to translate to humans. This is also influenced by the fact that new, human-derived in vitro models can recapitulate aspects of disease processes. However, it would be a mistake to think that animal models do not represent a vital step in the translational pathway as they do provide important pathophysiological insights into disease mechanisms particularly on an organ and systemic level. While stem cell-derived human models have the potential to become key in testing toxicity and effectiveness of new drugs, we need to be realistic, and carefully validate all new human-like disease models. In this position paper, we highlight recent advances in trying to reduce the number of animals for cardiovascular research ranging from stem cell-derived models to in situ modelling of heart properties, bioinformatic models based on large datasets, and state-of-the-art animal models, which show clinically relevant characteristics observed in patients with a cardiovascular disease. We aim to provide a guide to help researchers in their experimental design to translate bench findings to clinical routine taking the replacement, reduction, and refinement (3R) as a guiding concept.
Collapse
Grants
- R01 HL150359 NHLBI NIH HHS
- RG/16/14/32397 British Heart Foundation
- FS/18/37/33642 British Heart Foundation
- PG/17/64/33205 British Heart Foundation
- PG/15/88/31780 British Heart Foundation
- FS/RTF/20/30009, NH/19/1/34595, PG/18/35/33786, CS/17/4/32960, PG/15/88/31780, and PG/17/64/33205 British Heart Foundation
- NC/T001488/1 National Centre for the Replacement, Refinement and Reduction of Animals in Research
- PG/18/44/33790 British Heart Foundation
- CH/16/3/32406 British Heart Foundation
- FS/RTF/20/30009 British Heart Foundation
- NWO-ZonMW
- ZonMW and Heart Foundation for the translational research program
- Dutch Cardiovascular Alliance (DCVA)
- Leducq Foundation
- Dutch Research Council
- Association of Collaborating Health Foundations (SGF)
- UCL Hospitals NIHR Biomedical Research Centre, and the DCVA
- Netherlands CardioVascular Research Initiative CVON
- Stichting Hartekind and the Dutch Research Counsel (NWO) (OCENW.GROOT.2019.029)
- National Fund for Scientific Research, Belgium and Action de Recherche Concertée de la Communauté Wallonie-Bruxelles, Belgium
- Netherlands CardioVascular Research Initiative CVON (PREDICT2 and CONCOR-genes projects), the Leducq Foundation
- ERA PerMed (PROCEED study)
- Netherlands Cardiovascular Research Initiative
- Dutch Heart Foundation
- German Centre of Cardiovascular Research (DZHH)
- Chest Heart and Stroke Scotland
- Tenovus Scotland
- Friends of Anchor and Grampian NHS-Endowments
- National Institute for Health Research University College London Hospitals Biomedical Research Centre
- German Centre for Cardiovascular Research
- European Research Council (ERC-AG IndivuHeart), the Deutsche Forschungsgemeinschaft
- European Union Horizon 2020 (REANIMA and TRAINHEART)
- German Ministry of Education and Research (BMBF)
- Centre for Cardiovascular Research (DZHK)
- European Union Horizon 2020
- DFG
- National Research, Development and Innovation Office of Hungary
- Research Excellence Program—TKP; National Heart Program
- Austrian Science Fund
- European Union Commission’s Seventh Framework programme
- CVON2016-Early HFPEF
- CVON She-PREDICTS
- CVON Arena-PRIME
- European Union’s Horizon 2020 research and innovation programme
- Deutsche Forschungsgemeinschaft
- Volkswagenstiftung
- French National Research Agency
- ERA-Net-CVD
- Fédération Française de Cardiologie, the Fondation pour la Recherche Médicale
- French PIA Project
- University Research Federation against heart failure
- Netherlands Heart Foundation
- Dekker Senior Clinical Scientist
- Health Holland TKI-LSH
- TUe/UMCU/UU Alliance Fund
- south African National Foundation
- Cancer Association of South Africa and Winetech
- Netherlands Heart Foundation/Applied & Engineering Sciences
- Dutch Technology Foundation
- Pie Medical Imaging
- Netherlands Organisation for Scientific Research
- Dr. Dekker Program
- Netherlands CardioVascular Research Initiative: the Dutch Heart Foundation
- Dutch Federation of University Medical Centres
- Netherlands Organization for Health Research and Development and the Royal Netherlands Academy of Sciences for the GENIUS-II project
- Netherlands Organization for Scientific Research (NWO) (VICI grant); the European Research Council
- Incyte s.r.l. and from Ministero dell’Istruzione, Università e Ricerca Scientifica
- German Center for Cardiovascular Research (Junior Research Group & Translational Research Project), the European Research Council (ERC Starting Grant NORVAS),
- Swedish Heart-Lung-Foundation
- Swedish Research Council
- National Institutes of Health
- Bavarian State Ministry of Health and Care through the research project DigiMed Bayern
- ERC
- ERA-CVD
- Dutch Heart Foundation, ZonMw
- the NWO Gravitation project
- Ministero dell'Istruzione, Università e Ricerca Scientifica
- Regione Lombardia
- Netherlands Organisation for Health Research and Development
- ITN Network Personalize AF: Personalized Therapies for Atrial Fibrillation: a translational network
- MAESTRIA: Machine Learning Artificial Intelligence Early Detection Stroke Atrial Fibrillation
- REPAIR: Restoring cardiac mechanical function by polymeric artificial muscular tissue
- Deutsche Forschungsgemeinschaft (DFG, German Research Foundation)
- European Union H2020 program to the project TECHNOBEAT
- EVICARE
- BRAV3
- ZonMw
- German Centre for Cardiovascular Research (DZHK)
- British Heart Foundation Centre for Cardiac Regeneration
- British Heart Foundation studentship
- NC3Rs
- Interreg ITA-AUS project InCARDIO
- Italian Association for Cancer Research
Collapse
Affiliation(s)
- Jolanda van der Velden
- Amsterdam UMC, Vrije Universiteit, Physiology, Amsterdam Cardiovascular Science, Amsterdam, The Netherlands
- Netherlands Heart Institute, Utrecht, The Netherlands
| | - Folkert W Asselbergs
- Division Heart & Lungs, Department of Cardiology, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands
- Faculty of Population Health Sciences, Institute of Cardiovascular Science and Institute of Health Informatics, University College London, London, UK
| | - Jeroen Bakkers
- Hubrecht Institute-KNAW and University Medical Centre Utrecht, Utrecht, The Netherlands
| | - Sandor Batkai
- Hannover Medical School, Institute of Molecular and Translational Therapeutic Strategies, Hannover, Germany
| | - Luc Bertrand
- Hannover Medical School, Institute of Molecular and Translational Therapeutic Strategies, Hannover, Germany
| | - Connie R Bezzina
- Université catholique de Louvain, Institut de Recherche Expérimentale et Clinique, Pole of Cardiovascular Research, Brussels, Belgium
| | - Ilze Bot
- Heart Center, Department of Experimental Cardiology, Amsterdam UMC, Location Academic Medical Center, Amsterdam Cardiovascular Sciences, University of Amsterdam, Amsterdam, The Netherlands
- Division of BioTherapeutics, Leiden Academic Centre for Drug Research, Leiden University, Leiden, The Netherlands
| | - Bianca J J M Brundel
- Amsterdam UMC, Vrije Universiteit, Physiology, Amsterdam Cardiovascular Science, Amsterdam, The Netherlands
| | - Lucie Carrier
- Institute of Experimental Pharmacology and Toxicology, University Medical Center Hamburg Eppendorf, Hamburg, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Hamburg/Kiel/Lübeck, Hamburg, Germany
| | - Steven Chamuleau
- Amsterdam UMC, Heart Center, Cardiology, Amsterdam Cardiovascular Science, Amsterdam, The Netherlands
| | - Michele Ciccarelli
- Department of Medicine, Surgery and Odontology, University of Salerno, Fisciano (SA), Italy
| | - Dana Dawson
- Department of Cardiology, Aberdeen Cardiovascular and Diabetes Centre, Aberdeen Royal Infirmary and University of Aberdeen, Aberdeen, UK
| | - Sean M Davidson
- The Hatter Cardiovascular Institute, University College London, 67 Chenies Mews, London WC1E 6HX, UK
| | - Andreas Dendorfer
- Walter-Brendel-Centre of Experimental Medicine, University Hospital, Ludwig-Maximilians-University, Munich, Germany
| | - Dirk J Duncker
- Division of Experimental Cardiology, Department of Cardiology, Thoraxcenter, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Thomas Eschenhagen
- Institute of Experimental Pharmacology and Toxicology, University Medical Center Hamburg Eppendorf, Hamburg, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Hamburg/Kiel/Lübeck, Hamburg, Germany
| | - Larissa Fabritz
- DZHK (German Centre for Cardiovascular Research), Partner Site Hamburg/Kiel/Lübeck, Hamburg, Germany
- University Center of Cardiovascular Sciences and Department of Cardiology, University Heart Center Hamburg, Germany and Institute of Cardiovascular Sciences, University of Birmingham, UK
| | - Ines Falcão-Pires
- UnIC - Cardiovascular Research and Development Centre, Department of Surgery and Physiology, Faculty of Medicine, University of Porto, Portugal
| | - Péter Ferdinandy
- Cardiometabolic Research Group and MTA-SE System Pharmacology Research Group, Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary
- Pharmahungary Group, Szeged, Hungary
| | - Mauro Giacca
- Department of Medicine, Surgery and Health Sciences and Cardiovascular Department, Centre for Translational Cardiology, Azienda Sanitaria Universitaria Integrata Trieste, Trieste, Italy
- International Center for Genetic Engineering and Biotechnology (ICGEB), Trieste, Italy
- King’s British Heart Foundation Centre, King’s College London, London, UK
| | - Henrique Girao
- Univ Coimbra, Center for Innovative Biomedicine and Biotechnology, Faculty of Medicine, Coimbra, Portugal
- Clinical Academic Centre of Coimbra, Coimbra, Portugal
| | | | - Mariann Gyongyosi
- Division of Cardiology, Department of Internal Medicine II, Medical University of Vienna, Vienna, Austria
| | - Tomasz J Guzik
- Instutute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
- Jagiellonian University, Collegium Medicum, Kraków, Poland
| | - Nazha Hamdani
- Division Cardiology, Molecular and Experimental Cardiology, Ruhr University Bochum, Bochum, Germany
- Institute of Physiology, Ruhr University Bochum, Bochum, Germany
| | - Stephane Heymans
- Department of Cardiology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Centre, Maastricht University, Maastricht, The Netherlands
- Department of Cardiovascular Sciences, University of Leuven, Leuven, Belgium
| | - Andres Hilfiker
- Department for Cardiothoracic, Transplant, and Vascular Surgery, Hannover Medical School, Hannover, Germany
| | - Denise Hilfiker-Kleiner
- Department for Cardiology and Angiology, Hannover Medical School, Hannover, Germany
- Department of Cardiovascular Complications in Pregnancy and in Oncologic Therapies, Comprehensive Cancer Centre, Philipps-Universität Marburg, Germany
| | - Alfons G Hoekstra
- Computational Science Lab, Informatics Institute, Faculty of Science, University of Amsterdam, Amsterdam, the Netherlands
| | - Jean-Sébastien Hulot
- Université de Paris, INSERM, PARCC, F-75015 Paris, France
- CIC1418 and DMU CARTE, AP-HP, Hôpital Européen Georges-Pompidou, F-75015 Paris, France
| | - Diederik W D Kuster
- Amsterdam UMC, Vrije Universiteit, Physiology, Amsterdam Cardiovascular Science, Amsterdam, The Netherlands
| | - Linda W van Laake
- Division Heart & Lungs, Department of Cardiology, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands
| | - Sandrine Lecour
- Department of Medicine, Hatter Institute for Cardiovascular Research in Africa and Cape Heart Institute, University of Cape Town, Cape Town, South Africa
| | - Tim Leiner
- Department of Radiology, Utrecht University Medical Center, Utrecht, the Netherlands
| | - Wolfgang A Linke
- Institute of Physiology II, University of Muenster, Robert-Koch-Str. 27B, 48149 Muenster, Germany
| | - Joost Lumens
- Department of Biomedical Engineering, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, the Netherlands
| | - Esther Lutgens
- Experimental Vascular Biology Division, Department of Medical Biochemistry, University of Amsterdam, Amsterdam Cardiovascular Sciences, Amsterdam University Medical Centers, Amsterdam, The Netherlands
- Institute for Cardiovascular Prevention, Ludwig-Maximilians-Universität München (LMU), Munich, Germany
- DZHK, Partner Site Munich Heart Alliance, Munich, Germany
| | - Rosalinda Madonna
- Department of Pathology, Cardiology Division, University of Pisa, 56124 Pisa, Italy
- Department of Internal Medicine, Cardiology Division, University of Texas Medical School in Houston, Houston, TX, USA
| | - Lars Maegdefessel
- DZHK, Partner Site Munich Heart Alliance, Munich, Germany
- Department for Vascular and Endovascular Surgery, Klinikum rechts der Isar, Technical University Munich, Munich, Germany
- Department of Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Manuel Mayr
- King’s British Heart Foundation Centre, King’s College London, London, UK
| | - Peter van der Meer
- Department of Cardiology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Robert Passier
- Department of Applied Stem Cell Technologies, TechMed Centre, University of Twente, 7500AE Enschede, The Netherlands
- Department of Anatomy and Embryology, Leiden University Medical Centre, 2300 RC Leiden, The Netherlands
| | - Filippo Perbellini
- Hannover Medical School, Institute of Molecular and Translational Therapeutic Strategies, Hannover, Germany
| | - Cinzia Perrino
- Department of Advanced Biomedical Sciences, Federico II University, Naples, Italy
| | - Maurizio Pesce
- Unità di Ingegneria Tissutale Cardiovascolare, Centro cardiologico Monzino, IRCCS, Milan, Italy
| | - Silvia Priori
- Molecular Cardiology, Istituti Clinici Scientifici Maugeri, Pavia, Italy
- University of Pavia, Pavia, Italy
| | - Carol Ann Remme
- Université catholique de Louvain, Institut de Recherche Expérimentale et Clinique, Pole of Cardiovascular Research, Brussels, Belgium
| | - Bodo Rosenhahn
- Institute for information Processing, Leibniz University of Hanover, 30167 Hannover, Germany
| | - Ulrich Schotten
- Department of Physiology, Cardiovascular Research Institute Maastricht, Maastricht University, Maastricht, the Netherlands
| | - Rainer Schulz
- Institute of Physiology, Justus Liebig University Giessen, Giessen, Germany
| | - Karin R Sipido
- Department of Cardiovascular Sciences, KU Leuven, 3000 Leuven, Belgium
| | - Joost P G Sluijter
- Experimental Cardiology Laboratory, Department of Cardiology, Regenerative Medicine Center Utrecht, Circulatory Health Laboratory, Utrecht University, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Frank van Steenbeek
- Division Heart & Lungs, Department of Cardiology, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - Sabine Steffens
- Institute for Cardiovascular Prevention, Ludwig-Maximilians-Universität München (LMU), Munich, Germany
- DZHK, Partner Site Munich Heart Alliance, Munich, Germany
| | | | - Carlo Gabriele Tocchetti
- Cardio-Oncology Unit, Department of Translational Medical Sciences, Center for Basic and Clinical Immunology Research (CISI), Interdepartmental Center for Clinical and Translational Research (CIRCET), Interdepartmental Hypertension Research Center (CIRIAPA), Federico II University, Naples, Italy
| | - Patricia Vlasman
- Amsterdam UMC, Vrije Universiteit, Physiology, Amsterdam Cardiovascular Science, Amsterdam, The Netherlands
| | - Kak Khee Yeung
- Amsterdam UMC, Vrije Universiteit, Surgery, Amsterdam Cardiovascular Science, Amsterdam, The Netherlands
| | - Serena Zacchigna
- Department of Medicine, Surgery and Health Sciences and Cardiovascular Department, Centre for Translational Cardiology, Azienda Sanitaria Universitaria Integrata Trieste, Trieste, Italy
- International Center for Genetic Engineering and Biotechnology (ICGEB), Trieste, Italy
| | - Dayenne Zwaagman
- Amsterdam UMC, Heart Center, Cardiology, Amsterdam Cardiovascular Science, Amsterdam, The Netherlands
| | - Thomas Thum
- Hannover Medical School, Institute of Molecular and Translational Therapeutic Strategies, Hannover, Germany
- Fraunhofer Institute for Toxicology and Experimental Medicine, Hannover, Germany
| |
Collapse
|
38
|
Chabas H, Müller V, Bonhoeffer S, Regoes RR. Epidemiological and evolutionary consequences of different types of CRISPR-Cas systems. PLoS Comput Biol 2022; 18:e1010329. [PMID: 35881633 PMCID: PMC9355216 DOI: 10.1371/journal.pcbi.1010329] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 08/05/2022] [Accepted: 06/27/2022] [Indexed: 11/19/2022] Open
Abstract
Bacteria have adaptive immunity against viruses (phages) in the form of CRISPR-Cas immune systems. Currently, 6 types of CRISPR-Cas systems are known and the molecular study of three of these has revealed important molecular differences. It is unknown if and how these molecular differences change the outcome of phage infection and the evolutionary pressure the CRISPR-Cas systems faces. To determine the importance of these molecular differences, we model a phage outbreak entering a population defending exclusively with a type I/II or a type III CRISPR-Cas system. We show that for type III CRISPR-Cas systems, rapid phage extinction is driven by the probability to acquire at least one resistance spacer. However, for type I/II CRISPR-Cas systems, rapid phage extinction is characterized by an a threshold-like behaviour: any acquisition probability below this threshold leads to phage survival whereas any acquisition probability above it, results in phage extinction. We also show that in the absence of autoimmunity, high acquisition rates evolve. However, when CRISPR-Cas systems are prone to autoimmunity, intermediate levels of acquisition are optimal during a phage outbreak. As we predict an optimal probability of spacer acquisition 2 factors of magnitude above the one that has been measured, we discuss the origin of such a discrepancy. Finally, we show that in a biologically relevant parameter range, a type III CRISPR-Cas system can outcompete a type I/II CRISPR-Cas system with a slightly higher probability of acquisition. CRISPR-Cas systems are adaptive immune systems that use a complex 3-step molecular mechanism to defend prokaryotes against phages. Viral infections of populations defending themselves with CRISPR-Cas can result in rapid phage extinction or in medium-term phage maintenance. To investigate what controls the fate of the phage population, we use mathematical modeling of type I/II and type III CRISPR-Cas systems, and show that two parameters control the epidemiological short-term outcome: the type of CRISPR-Cas systems and CRISPR-Cas probability of resistance acquisition. Furthermore, the latter impacts host fitness. From this, we derive that 1) for both types, CRISPR-Cas acquisition probability is a key predictor of the efficiency and of the cost of a CRISPR-Cas system, 2) during an outbreak, there is an optimal probability of resistance acquisition balancing the cost of autoimmunity and immune efficiency and 3) type I/II CRISPR-Cas systems are likely to evolve higher acquisition probability than type III.
Collapse
Affiliation(s)
- Hélène Chabas
- Institute for Integrative Biology, ETH Zürich, Zürich, Switzerland
- * E-mail:
| | - Viktor Müller
- Institute of Biology, Eötvös Loránd University, Budapest, Hungary
| | | | - Roland R. Regoes
- Institute for Integrative Biology, ETH Zürich, Zürich, Switzerland
| |
Collapse
|
39
|
Hsu VM, Kozák E, Li Q, Bocskai M, Schlesinger N, Rosenthal A, McClure ST, Kovács L, Bálint L, Szamosi S, Szücs G, Carns M, Aren K, Goldberg I, Váradi A, Varga J. Inorganic pyrophosphate is reduced in patients with systemic sclerosis. Rheumatology (Oxford) 2022; 61:1158-1165. [PMID: 34152415 PMCID: PMC9052889 DOI: 10.1093/rheumatology/keab508] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [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: 02/18/2021] [Revised: 06/12/2021] [Indexed: 01/07/2023] Open
Abstract
OBJECTIVE The pathogenesis of calcinosis cutis, a disabling complication of SSc, is poorly understood and effective treatments are lacking. Inorganic pyrophosphate (PPi) is a key regulator of ectopic mineralization, and its deficiency has been implicated in ectopic mineralization disorders. We therefore sought to test the hypothesis that SSc may be associated with reduced circulating PPi, which might play a pathogenic role in calcinosis cutis. METHODS Subjects with SSc and age-matched controls without SSc were recruited from the outpatient rheumatology clinics at Rutgers and Northwestern Universities (US cohort), and from the Universities of Szeged and Debrecen (Hungarian cohort). Calcinosis cutis was confirmed by direct palpation, by imaging or both. Plasma PPi levels were determined in platelet-free plasma using ATP sulfurylase to convert PPi into ATP in the presence of excess adenosine 5' phosphosulfate. RESULTS Eighty-one patients with SSc (40 diffuse cutaneous, and 41 limited cutaneous SSc) in the US cohort and 45 patients with SSc (19 diffuse cutaneous and 26 limited cutaneous SSc) in the Hungarian cohort were enrolled. Calcinosis was frequently detected (40% of US and 46% of the Hungarian cohort). Plasma PPi levels were significantly reduced in both SSc cohorts with and without calcinosis (US: P = 0.003; Hungarian: P < 0.001). CONCLUSIONS Circulating PPi are significantly reduced in SSc patients with or without calcinosis. Reduced PPi may be important in the pathophysiology of calcinosis and contribute to tissue damage with chronic SSc. Administering PPi may be a therapeutic strategy and larger clinical studies are planned to confirm our findings.
Collapse
Affiliation(s)
- Vivien M Hsu
- Rheumatology Division, Department of Medicine, Rutgers-RWJ Medical School, New Brunswick, NJ, USA
| | - Eszter Kozák
- Institute of Enzymology, Research Center for Natural Sciences, Hungarian Academy of Sciences Centre of Excellence, Budapest, Hungary
| | - Qiaoli Li
- The Sidney Kimmel Medical College, The PXE International Center of Excellence in Research and Clinical Care, and Jefferson Institute of Molecular Medicine, Thomas Jefferson University, Philadelphia, PA, USA
| | - Márta Bocskai
- Department of Rheumatology and Immunology, University of Szeged, Szeged, Hungary
| | - Naomi Schlesinger
- Rheumatology Division, Department of Medicine, Rutgers-RWJ Medical School, New Brunswick, NJ, USA
| | - Ann Rosenthal
- Rheumatology Division, Department of Medicine, Medical College of Wisconsin, Milwaukee, WI
| | - Scott T McClure
- Department of Statistics, Shenandoah University, Winchester, VA
- Rebel Analytics, LLC, Laguna Hills, CA, USA
| | - László Kovács
- Department of Rheumatology and Immunology, University of Szeged, Szeged, Hungary
| | - László Bálint
- Genomic Medicine and Bioinformatic Core Facility, Department of Biochemistry and Molecular Biology, University of Debrecen, Hungary University of Szeged, Szeged
| | - Szilvia Szamosi
- Division of Rheumatology, University of Debrecen, Debrecen, Hungary
| | - Gabriella Szücs
- Division of Rheumatology, University of Debrecen, Debrecen, Hungary
| | - Mary Carns
- Divisions of Rheumatology and Pulmonary and Critical Care Medicine, Department of Medicine, Northwestern University, Chicago, IL
| | - Kathleen Aren
- Divisions of Rheumatology and Pulmonary and Critical Care Medicine, Department of Medicine, Northwestern University, Chicago, IL
| | - Isaac Goldberg
- Divisions of Rheumatology and Pulmonary and Critical Care Medicine, Department of Medicine, Northwestern University, Chicago, IL
| | - András Váradi
- Institute of Enzymology, Research Center for Natural Sciences, Hungarian Academy of Sciences Centre of Excellence, Budapest, Hungary
| | - John Varga
- Divisions of Rheumatology and Pulmonary and Critical Care Medicine, Department of Medicine, Northwestern University, Chicago, IL
- Rheumatology Division, Department of Medicine, University of Michigan, Ann Arbor, MI, USA
| |
Collapse
|
40
|
Kiss E, Forika G, Dank M, Krenacs T, Nemeth Z. Methyl Donors Reduce Cell Proliferation by Diminishing Erk-Signaling and NFkB Levels, While Increasing E-Cadherin Expression in Panc-1 Cell Line. Int J Mol Sci 2022; 23:2546. [PMID: 35269689 PMCID: PMC8910410 DOI: 10.3390/ijms23052546] [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: 01/08/2022] [Revised: 02/22/2022] [Accepted: 02/24/2022] [Indexed: 02/06/2023] Open
Abstract
Pancreatic cancer is an aggressive malignancy with high metastatic potential. There are several lifestyle-related determinants in its etiology, including diet. Methyl donors are dietary micronutrients which play an important role in fueling vital metabolic pathways, and as bioactive food components provide methyl groups as substrates and cofactors. The imbalanced nutritional status of methyl donors has recently been linked to pathological conditions. Therefore, we hypothesized that dietary methyl donors may improve the physiology of cancer patients, including those with pancreatic cancer, and could be used for intervention therapy. In this study, methyl-donor treatment (L-methionine, choline chloride, folic acid and vitamin B12) of an aggressive pancreatic adenocarcinoma cell line (Panc-1) resulted in significantly increased p21WAF1/Cip1 cyclin-dependent kinase inhibitor levels, along with apoptotic SubG1 fractions. At the same time, phospho-Erk1/2 levels and proliferation rate were significantly reduced. Though methyl-donor treatments also increased the pro-apoptotic protein Bak, Puma and Caspase-9, it failed to elevate cleaved Caspase-3 levels. In addition, the treatment significantly reduced the production of the pro-inflammatory cytokine IL-17a and the transcription factor NFkB. Similarly, a significant decrease in VEGF and SDF-1a levels were detected, which may indicate reduced metastatic potential. As expected, E-cadherin expression was inversely associated with these changes, showing elevated expression after methyl-donor treatment. In summary, we found that methyl donors may have the potential to reduce aggressive and proliferative phenotype of Panc-1 cells. This suggests a promising role of dietary methyl donors for complementing relevant cancer therapies, even in treatment-resistant pancreatic adenocarcinomas.
Collapse
Affiliation(s)
- Eva Kiss
- 1st Department of Internal Medicine and Oncology, Oncology Profile, Semmelweis University, 1083 Budapest, Hungary; (E.K.); (M.D.)
| | - Gertrud Forika
- 1st Department of Pathology and Experimental Cancer Research, Semmelweis University, 1085 Budapest, Hungary; (G.F.); (T.K.)
| | - Magdolna Dank
- 1st Department of Internal Medicine and Oncology, Oncology Profile, Semmelweis University, 1083 Budapest, Hungary; (E.K.); (M.D.)
| | - Tibor Krenacs
- 1st Department of Pathology and Experimental Cancer Research, Semmelweis University, 1085 Budapest, Hungary; (G.F.); (T.K.)
| | - Zsuzsanna Nemeth
- 1st Department of Internal Medicine and Oncology, Semmelweis University, 1083 Budapest, Hungary
| |
Collapse
|
41
|
Timári I, Balla S, Fehér K, Kövér KE, Szilágyi L. 77Se-Enriched Selenoglycoside Enables Significant Enhancement in NMR Spectroscopic Monitoring of Glycan-Protein Interactions. Pharmaceutics 2022; 14:201. [PMID: 35057096 PMCID: PMC8779653 DOI: 10.3390/pharmaceutics14010201] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 01/07/2022] [Accepted: 01/10/2022] [Indexed: 12/17/2022] Open
Abstract
Detailed investigation of ligand-protein interactions is essential for better understanding of biological processes at the molecular level. Among these binding interactions, the recognition of glycans by lectins is of particular importance in several diseases, such as cancer; therefore, inhibition of glycan-lectin/galectin interactions represents a promising perspective towards developing therapeutics controlling cancer development. The recent introduction of 77Se NMR spectroscopy for monitoring the binding of a selenoglycoside to galectins prompted interest to optimize the sensitivity by increasing the 77Se content from the natural 7.63% abundance to 99%. Here, we report a convenient synthesis of 77Se-enriched selenodigalactoside (SeDG), which is a potent ligand of the medically relevant human galectin-3 protein, and proof of the expected sensitivity gain in 2D 1H, 77Se correlation NMR experiments. Our work opens perspectives for adding isotopically enriched selenoglycans for rapid monitoring of lectin-binding of selenated as well as non-selenated ligands and for ligand screening in competition experiments.
Collapse
Affiliation(s)
- István Timári
- Department of Organic Chemistry, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary; (I.T.); (S.B.)
| | - Sára Balla
- Department of Organic Chemistry, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary; (I.T.); (S.B.)
| | - Krisztina Fehér
- Department of Inorganic and Analytical Chemistry, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary;
- Molecular Recognition and Interaction Research Group, Hungarian Academy of Sciences, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary
| | - Katalin E. Kövér
- Department of Inorganic and Analytical Chemistry, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary;
- Molecular Recognition and Interaction Research Group, Hungarian Academy of Sciences, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary
| | - László Szilágyi
- Department of Organic Chemistry, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary; (I.T.); (S.B.)
| |
Collapse
|
42
|
Chakravarty S, Csikász-Nagy A. Systematic analysis of noise reduction properties of coupled and isolated feed-forward loops. PLoS Comput Biol 2021; 17:e1009622. [PMID: 34860832 PMCID: PMC8641863 DOI: 10.1371/journal.pcbi.1009622] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 05/11/2021] [Accepted: 11/08/2021] [Indexed: 11/19/2022] Open
Abstract
Cells can maintain their homeostasis in a noisy environment since their signaling pathways can filter out noise somehow. Several network motifs have been proposed for biological noise filtering and, among these, feed-forward loops have received special attention. Specific feed-forward loops show noise reducing capabilities, but we notice that this feature comes together with a reduced signal transducing performance. In posttranslational signaling pathways feed-forward loops do not function in isolation, rather they are coupled with other motifs to serve a more complex function. Feed-forward loops are often coupled to other feed-forward loops, which could affect their noise-reducing capabilities. Here we systematically study all feed-forward loop motifs and all their pairwise coupled systems with activation-inactivation kinetics to identify which networks are capable of good noise reduction, while keeping their signal transducing performance. Our analysis shows that coupled feed-forward loops can provide better noise reduction and, at the same time, can increase the signal transduction of the system. The coupling of two coherent 1 or one coherent 1 and one incoherent 4 feed-forward loops can give the best performance in both of these measures. Cellular behavior can be affected by noise in molecular interactions. Signaling pathways should process noisy input signals and support cellular decision making by properly transducing the signals, while removing noise from them. Three component networks of feed-forward loops (FFLs) have been proposed to serve as ideal noise reducers, while linear pathways were shown to be good signal transducers. These signaling units do not work in isolation, so there is a possibility that a combination of various feed-forward loops can provide good noise reduction, while maintaining good signal transduction. To test this hypothesis, we have systematically tested the noise reducing and signal transducing capabilities of all possible combinations of feed-forward loops and compared them with the performance of individual FFLs. We built mathematical models of all these systems and compared their capabilities at reducing noise in the input signal while maintaining responses to meaningful changes in the incoming signal. We found that a combination of two copies of a special type of fully positive signaling FFLs is the best noise reducer, while a combination of two incoherent (one positive, one negative signal) FFLs can provide the best signal transduction. The combination of these two FFLs could provide good signal processing where both noise reduction and signal transduction are achieved.
Collapse
Affiliation(s)
- Suchana Chakravarty
- Faculty of Information Technology and Bionics, Pázmány Péter Catholic University, Budapest, Hungary
- * E-mail: (SC); (AC-N)
| | - Attila Csikász-Nagy
- Faculty of Information Technology and Bionics, Pázmány Péter Catholic University, Budapest, Hungary
- Randall Center for Cell and Molecular Biophysics, King’s College London, London, United Kingdom
- * E-mail: (SC); (AC-N)
| |
Collapse
|
43
|
Gregor Z, Kiss AR, Szabó LE, Tóth A, Grebur K, Horváth M, Dohy Z, Merkely B, Vágó H, Szűcs A. Sex- and age- specific normal values of left ventricular functional and myocardial mass parameters using threshold-based trabeculae quantification. PLoS One 2021; 16:e0258362. [PMID: 34637474 PMCID: PMC8509873 DOI: 10.1371/journal.pone.0258362] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 04/26/2021] [Accepted: 08/24/2021] [Indexed: 01/19/2023] Open
Abstract
Background The threshold-based (TB) trabeculated and papillary muscle mass (TPM) quantification method for cardiac MRI (CMR) calculates different values than conventional contouring techniques. We aimed to identify the sex- and age-related normal reference ranges for left ventricular (LV) myocardial mass values, volumetric and functional parameters and the correspondence of these parameters using the TB method. Methods Healthy European adults (n = 200, age: 39.4 ± 12 years, males: 100) were examined with CMR and evaluated with a TB postprocessing method. They were stratified by sex and age (Group A: 18–29, Group B: 30–39, Group C: 40–49, Group D: >50 years). The calculated parameters were indexed to body surface area (i). Results The normal reference ranges for the studied parameters were assessed in each age group. Significant biometric differences in LV parameters and mass-to-volume ratios were found between males and females, and the left ventricular compacted myocardial mass (LVCMi) and TPMi differences remained significant after stratification by age. Unlike other LV volumetric and functional parameters and mass-to-volume ratios, the TPMi, the LVCMi and the TPMi-to-LVCMi ratio did not differ among age groups in males or females. This finding was strengthened by the lack of correlation between TPMi and age. Conclusions Age- and sex-related normal reference ranges for LV volumetric and functional parameters and LVCMi and TPMi values were established using a TB postprocessing method. TPMi, LVCMi and their ratio did not change over time. The TPMi-to-LVCMi and the mass-to-volume ratios might have clinical utility in the differential diagnosis of conditions with LV hypertrabeculation.
Collapse
Affiliation(s)
- Zsófia Gregor
- Heart and Vascular Center of Semmelweis University, Budapest, Hungary
| | - Anna Réka Kiss
- Heart and Vascular Center of Semmelweis University, Budapest, Hungary
| | | | - Attila Tóth
- Heart and Vascular Center of Semmelweis University, Budapest, Hungary
| | - Kinga Grebur
- Heart and Vascular Center of Semmelweis University, Budapest, Hungary
| | - Márton Horváth
- Heart and Vascular Center of Semmelweis University, Budapest, Hungary
| | - Zsófia Dohy
- Heart and Vascular Center of Semmelweis University, Budapest, Hungary
| | - Béla Merkely
- Heart and Vascular Center of Semmelweis University, Budapest, Hungary
- Department of Sports Medicine, Semmelweis University, Budapest, Hungary
| | - Hajnalka Vágó
- Heart and Vascular Center of Semmelweis University, Budapest, Hungary
- Department of Sports Medicine, Semmelweis University, Budapest, Hungary
| | - Andrea Szűcs
- Heart and Vascular Center of Semmelweis University, Budapest, Hungary
- * E-mail:
| |
Collapse
|
44
|
Szabó JE, Nyíri K, Andrási D, Matejka J, Ozohanics O, Vértessy B. Redox status of cysteines does not alter functional properties of human dUTPase but the Y54C mutation involved in monogenic diabetes decreases protein stability. Sci Rep 2021; 11:19197. [PMID: 34584184 PMCID: PMC8478915 DOI: 10.1038/s41598-021-98790-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Accepted: 09/13/2021] [Indexed: 02/08/2023] Open
Abstract
Recently it was proposed that the redox status of cysteines acts as a redox switch to regulate both the oligomeric status and the activity of human dUTPase. In a separate report, a human dUTPase point mutation, resulting in a tyrosine to cysteine substitution (Y54C) was identified as the monogenic cause of a rare syndrome associated with diabetes and bone marrow failure. These issues prompt a critical investigation about the potential regulatory role of cysteines in the enzyme. Here we show on the one hand that independently of the redox status of wild-type cysteines, human dUTPase retains its characteristic trimeric assembly and its catalytic activity. On the other hand, the Y54C mutation did not compromise the substrate binding and the catalytic properties of the enzyme at room temperature. The thermal stability of the mutant protein was found to be decreased, which resulted in the loss of 67% of its activity after 90 min incubation at the physiological temperature in contrast to the wild-type enzyme. In addition, the presence or absence of reducing agents had no effect on hDUTY54C activity and stability, although it was confirmed that the introduced cysteine contains a solvent accessible thiol group.
Collapse
Affiliation(s)
- Judit Eszter Szabó
- Institute of Enzymology, RCNS, Eötvös Loránd Research Network, Budapest, Hungary.
- Department of Applied Biotechnology and Food Sciences, Budapest University of Technology and Economics, Budapest, Hungary.
| | - Kinga Nyíri
- Institute of Enzymology, RCNS, Eötvös Loránd Research Network, Budapest, Hungary
- Department of Applied Biotechnology and Food Sciences, Budapest University of Technology and Economics, Budapest, Hungary
| | - Dániel Andrási
- Department of Applied Biotechnology and Food Sciences, Budapest University of Technology and Economics, Budapest, Hungary
| | - Judit Matejka
- Institute of Enzymology, RCNS, Eötvös Loránd Research Network, Budapest, Hungary
- Department of Applied Biotechnology and Food Sciences, Budapest University of Technology and Economics, Budapest, Hungary
| | - Olivér Ozohanics
- Department of Biochemistry, Institute of Biochemistry and Molecular Biology, Semmelweis University, Budapest, Hungary
| | - Beáta Vértessy
- Institute of Enzymology, RCNS, Eötvös Loránd Research Network, Budapest, Hungary.
- Department of Applied Biotechnology and Food Sciences, Budapest University of Technology and Economics, Budapest, Hungary.
| |
Collapse
|
45
|
Szegedi N, Salló Z, Perge P, Piros K, Nagy VK, Osztheimer I, Merkely B, Gellér L. The role of local impedance drop in the acute lesion efficacy during pulmonary vein isolation performed with a new contact force sensing catheter-A pilot study. PLoS One 2021; 16:e0257050. [PMID: 34529678 PMCID: PMC8445471 DOI: 10.1371/journal.pone.0257050] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [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: 04/13/2021] [Accepted: 08/22/2021] [Indexed: 11/24/2022] Open
Abstract
Introduction Our pilot study aimed to evaluate the role of local impedance drop in lesion formation during pulmonary vein isolation with a novel contact force sensing ablation catheter that records local impedance as well and to find a local impedance cut-off value that predicts successful lesion formation. Materials and methods After completing point-by-point radiofrequency pulmonary vein isolation, the success of the applications was evaluated by pacing along the ablation line at 10 mA, 2 ms pulse width. Lesions were considered successful if loss of local capture was achieved. Results Out of 645 applications, 561 were successful and 84 were unsuccessful. Compared to the unsuccessful ablation points, the successful applications were shorter (p = 0.0429) and had a larger local impedance drop (p<0.0001). There was no difference between successful and unsuccessful applications in terms of mean contact force (p = 0.8571), force-time integral (p = 0.0699) and contact force range (p = 0.0519). The optimal cut-point for the local impedance drop indicating successful lesion formation was 21.80 Ohms on the anterior wall [AUC = 0.80 (0.75–0.86), p<0.0001], and 18.30 Ohms on the posterior wall [AUC = 0.77 (0.72–0.83), p<0.0001]. A local impedance drop larger than 21.80 Ohms on the anterior wall and 18.30 Ohms on the posterior wall was associated with an increased probability of effective lesion creation [OR = 11.21, 95%CI 4.22–29.81, p<0.0001; and OR = 7.91, 95%CI 3.77–16.57, p<0.0001, respectively]. Conclusion The measurement of the local impedance may predict optimal lesion formation. A local impedance drop > 21.80 Ohms on the anterior wall and > 18.30 Ohms on the posterior wall significantly increases the probability of creating a successful lesion.
Collapse
Affiliation(s)
- Nándor Szegedi
- Heart and Vascular Center, Semmelweis University, Budapest, Hungary
- * E-mail:
| | - Zoltán Salló
- Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Péter Perge
- Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Katalin Piros
- Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | | | | | - Béla Merkely
- Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - László Gellér
- Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| |
Collapse
|
46
|
Lecour S, Andreadou I, Bøtker HE, Davidson SM, Heusch G, Ruiz-Meana M, Schulz R, Zuurbier CJ, Ferdinandy P, Hausenloy DJ. IMproving Preclinical Assessment of Cardioprotective Therapies (IMPACT) criteria: guidelines of the EU-CARDIOPROTECTION COST Action. Basic Res Cardiol 2021; 116:52. [PMID: 34515837 PMCID: PMC8437922 DOI: 10.1007/s00395-021-00893-5] [Citation(s) in RCA: 64] [Impact Index Per Article: 21.3] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 09/05/2021] [Accepted: 09/06/2021] [Indexed: 12/28/2022]
Abstract
Acute myocardial infarction (AMI) and the heart failure (HF) which may follow are among the leading causes of death and disability worldwide. As such, new therapeutic interventions are still needed to protect the heart against acute ischemia/reperfusion injury to reduce myocardial infarct size and prevent the onset of HF in patients presenting with AMI. However, the clinical translation of cardioprotective interventions that have proven to be beneficial in preclinical animal studies, has been challenging. One likely major reason for this failure to translate cardioprotection into patient benefit is the lack of rigorous and systematic in vivo preclinical assessment of the efficacy of promising cardioprotective interventions prior to their clinical evaluation. To address this, we propose an in vivo set of step-by-step criteria for IMproving Preclinical Assessment of Cardioprotective Therapies ('IMPACT'), for investigators to consider adopting before embarking on clinical studies, the aim of which is to improve the likelihood of translating novel cardioprotective interventions into the clinical setting for patient benefit.
Collapse
Affiliation(s)
- Sandrine Lecour
- Department of Medicine, Hatter Institute for Cardiovascular Research in Africa, University of Cape Town, Cape Town, South Africa
| | - Ioanna Andreadou
- Laboratory of Pharmacology, Faculty of Pharmacy, National and Kapodistrian University of Athens, Athens, Greece
| | - Hans Erik Bøtker
- Department of Cardiology, Aarhus University Hospital, Aarhus N, Denmark
| | - Sean M Davidson
- The Hatter Cardiovascular Institute, University College London, London, UK
| | - Gerd Heusch
- Institute for Pathophysiology, West German Heart and Vascular Center, University of Duisburg-Essen, Essen, Germany
| | - Marisol Ruiz-Meana
- Cardiovascular Diseases Research Group, Vall d'Hebron Institut de Recerca (VHIR), Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain
| | - Rainer Schulz
- Institute for Physiology, Justus-Liebig University Giessen, Giessen, Germany
| | - Coert J Zuurbier
- Laboratory of Experimental Intensive Care Anesthesiology, Department Anesthesiology, Amsterdam Cardiovascular Sciences, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Péter Ferdinandy
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary
- Pharmahungary Group, Szeged, Hungary
| | - Derek J Hausenloy
- The Hatter Cardiovascular Institute, University College London, London, UK.
- Cardiovascular & Metabolic Disorders Program, Duke-National University of Singapore Medical School, 8 College Road, Singapore, 169857, Singapore.
- National Heart Research Institute Singapore, National Heart Centre, Singapore, Singapore.
- Yong Loo Lin School of Medicine, National University Singapore, Singapore, Singapore.
- Cardiovascular Research Center, College of Medical and Health Sciences, Asia University, Taichung, Taiwan.
| |
Collapse
|
47
|
Naszályi Nagy L, Dhaene E, Van Zele M, Mihály J, Klébert S, Varga Z, Kövér KE, De Buysser K, Van Driessche I, Martins JC, Fehér K. Silica@zirconia Core@shell Nanoparticles for Nucleic Acid Building Block Sorption. Nanomaterials (Basel) 2021; 11:2166. [PMID: 34578482 PMCID: PMC8468278 DOI: 10.3390/nano11092166] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 08/02/2021] [Accepted: 08/13/2021] [Indexed: 12/27/2022]
Abstract
The development of delivery systems for the immobilization of nucleic acid cargo molecules is of prime importance due to the need for safe administration of DNA or RNA type of antigens and adjuvants in vaccines. Nanoparticles (NP) in the size range of 20-200 nm have attractive properties as vaccine carriers because they achieve passive targeting of immune cells and can enhance the immune response of a weakly immunogenic antigen via their size. We prepared high capacity 50 nm diameter silica@zirconia NPs with monoclinic/cubic zirconia shell by a green, cheap and up-scalable sol-gel method. We studied the behavior of the particles upon water dialysis and found that the ageing of the zirconia shell is a major determinant of the colloidal stability after transfer into the water due to physisorption of the zirconia starting material on the surface. We determined the optimum conditions for adsorption of DNA building blocks, deoxynucleoside monophosphates (dNMP), the colloidal stability of the resulting NPs and its time dependence. The ligand adsorption was favored by acidic pH, while colloidal stability required neutral-alkaline pH; thus, the optimal pH for the preparation of nucleic acid-modified particles is between 7.0-7.5. The developed silica@zirconia NPs bind as high as 207 mg dNMPs on 1 g of nanocarrier at neutral-physiological pH while maintaining good colloidal stability. We studied the influence of biological buffers and found that while phosphate buffers decrease the loading dramatically, other commonly used buffers, such as HEPES, are compatible with the nanoplatform. We propose the prepared silica@zirconia NPs as promising carriers for nucleic acid-type drug cargos.
Collapse
Affiliation(s)
- Livia Naszályi Nagy
- NMR and Structure Analysis Research Group, Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 S4, B-9000 Ghent, Belgium; (L.N.N.); (J.C.M.)
| | - Evert Dhaene
- Sol-Gel Centre for Research on Inorganic Powders and Thin Films Synthesis, Department of Chemistry, Ghent University, Krijgslaan 281 S3, B-9000 Ghent, Belgium; (E.D.); (M.V.Z.); (K.D.B.); (I.V.D.)
| | - Matthias Van Zele
- Sol-Gel Centre for Research on Inorganic Powders and Thin Films Synthesis, Department of Chemistry, Ghent University, Krijgslaan 281 S3, B-9000 Ghent, Belgium; (E.D.); (M.V.Z.); (K.D.B.); (I.V.D.)
| | - Judith Mihály
- Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Eötvös Loránd Research Network (IMEC RCNS ELKH), Magyar Tudósok Körútja 2, H-1117 Budapest, Hungary; (J.M.); (S.K.); (Z.V.)
| | - Szilvia Klébert
- Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Eötvös Loránd Research Network (IMEC RCNS ELKH), Magyar Tudósok Körútja 2, H-1117 Budapest, Hungary; (J.M.); (S.K.); (Z.V.)
| | - Zoltán Varga
- Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Eötvös Loránd Research Network (IMEC RCNS ELKH), Magyar Tudósok Körútja 2, H-1117 Budapest, Hungary; (J.M.); (S.K.); (Z.V.)
| | - Katalin E. Kövér
- Department of Inorganic and Analytical Chemistry, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary;
| | - Klaartje De Buysser
- Sol-Gel Centre for Research on Inorganic Powders and Thin Films Synthesis, Department of Chemistry, Ghent University, Krijgslaan 281 S3, B-9000 Ghent, Belgium; (E.D.); (M.V.Z.); (K.D.B.); (I.V.D.)
| | - Isabel Van Driessche
- Sol-Gel Centre for Research on Inorganic Powders and Thin Films Synthesis, Department of Chemistry, Ghent University, Krijgslaan 281 S3, B-9000 Ghent, Belgium; (E.D.); (M.V.Z.); (K.D.B.); (I.V.D.)
| | - José C. Martins
- NMR and Structure Analysis Research Group, Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 S4, B-9000 Ghent, Belgium; (L.N.N.); (J.C.M.)
| | - Krisztina Fehér
- Molecular Recognition and Interaction Research Group, Hungarian Academy of Sciences-Eötvös Loránd Research Network at University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary
| |
Collapse
|
48
|
Badimon L, Robinson EL, Jusic A, Carpusca I, deWindt LJ, Emanueli C, Ferdinandy P, Gu W, Gyöngyösi M, Hackl M, Karaduzovic-Hadziabdic K, Lustrek M, Martelli F, Nham E, Potočnjak I, Satagopam V, Schneider R, Thum T, Devaux Y. Cardiovascular RNA markers and artificial intelligence may improve COVID-19 outcome: a position paper from the EU-CardioRNA COST Action CA17129. Cardiovasc Res 2021; 117:1823-1840. [PMID: 33839767 PMCID: PMC8083253 DOI: 10.1093/cvr/cvab094] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Accepted: 04/08/2021] [Indexed: 02/06/2023] Open
Abstract
The coronavirus disease 2019 (COVID-19) pandemic has been as unprecedented as unexpected, affecting more than 105 million people worldwide as of 8 February 2020 and causing more than 2.3 million deaths according to the World Health Organization (WHO). Not only affecting the lungs but also provoking acute respiratory distress, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is able to infect multiple cell types including cardiac and vascular cells. Hence a significant proportion of infected patients develop cardiac events, such as arrhythmias and heart failure. Patients with cardiovascular comorbidities are at highest risk of cardiac death. To face the pandemic and limit its burden, health authorities have launched several fast-track calls for research projects aiming to develop rapid strategies to combat the disease, as well as longer-term projects to prepare for the future. Biomarkers have the possibility to aid in clinical decision-making and tailoring healthcare in order to improve patient quality of life. The biomarker potential of circulating RNAs has been recognized in several disease conditions, including cardiovascular disease. RNA biomarkers may be useful in the current COVID-19 situation. The discovery, validation, and marketing of novel biomarkers, including RNA biomarkers, require multi-centre studies by large and interdisciplinary collaborative networks, involving both the academia and the industry. Here, members of the EU-CardioRNA COST Action CA17129 summarize the current knowledge about the strain that COVID-19 places on the cardiovascular system and discuss how RNA biomarkers can aid to limit this burden. They present the benefits and challenges of the discovery of novel RNA biomarkers, the need for networking efforts, and the added value of artificial intelligence to achieve reliable advances.
Collapse
Affiliation(s)
- Lina Badimon
- Cardiovascular Science Program-ICCC, IR-Hospital de la Santa Creu i Santa Pau, Ciber CV, Autonomous University of Barcelona, Barcelona, Spain
| | - Emma L Robinson
- Department of Cardiology, School for Cardiovascular Diseases, Faculty of Health, Medicine and Life Sciences, Maastricht University, Maastricht, the Netherlands
- Division of Cardiology, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Amela Jusic
- Cardiovascular Research Unit, Department of Population Health, Luxembourg Institute of Health, 1A-B rue Edison, L-1445 Strassen, Luxembourg
| | - Irina Carpusca
- Cardiovascular Research Unit, Department of Population Health, Luxembourg Institute of Health, 1A-B rue Edison, L-1445 Strassen, Luxembourg
| | - Leon J deWindt
- Department of Molecular Genetics, Faculty of Science and Engineering, Faculty of Health, Medicine and Life Sciences, Maastricht University, Maastricht, the Netherlands
| | - Costanza Emanueli
- National Heart & Lung Institute, Faculty of Medicine, Imperial College London, London, UK
| | - Péter Ferdinandy
- Cardiometabolic Research Group and MTA-SE System Pharmacology Research Group, Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest,Hungary
- Pharmahungary Group, Szeged, Hungary
| | - Wei Gu
- Luxembourg Center for Systems Biomedicine, University of Luxembourg, Esch sur Alzette, Luxembourg
| | - Mariann Gyöngyösi
- Department of Cardiology, Medical University of Vienna, Vienna, Austria
| | | | | | - Mitja Lustrek
- Department of Intelligent Systems, Jozef Stefan Institute, Ljubljana, Slovenia
| | - Fabio Martelli
- Molecular Cardiology Laboratory, IRCCS Policlinico San Donato, San Donato Milanese, Milan 20097, Italy
| | - Eric Nham
- University of Zagreb School of Medicine, Zagreb, Croatia
| | - Ines Potočnjak
- Institute for Clinical Medical Research and Education, University Hospital Centre Sisters of Charity, Zagreb, Croatia
| | - Venkata Satagopam
- Luxembourg Center for Systems Biomedicine, University of Luxembourg, Esch sur Alzette, Luxembourg
| | - Reinhard Schneider
- Luxembourg Center for Systems Biomedicine, University of Luxembourg, Esch sur Alzette, Luxembourg
| | - Thomas Thum
- Institute of Molecular and Translational Therapeutic Strategies (IMTTS), Fraunhofer Institute for Toxicology and Experimental Medicine, Hannover,Germany
- REBIRTH Center for Translational Regenerative Medicine, Hannover Medical School, Hannover, Germany
| | - Yvan Devaux
- Cardiovascular Research Unit, Department of Population Health, Luxembourg Institute of Health, 1A-B rue Edison, L-1445 Strassen, Luxembourg
| |
Collapse
|
49
|
Kovacs B, Kraft FA, Szabo Z, Nazirizadeh Y, Gerken M, Horvath R. Near cut-off wavelength operation of resonant waveguide grating biosensors. Sci Rep 2021; 11:13091. [PMID: 34158570 PMCID: PMC8219702 DOI: 10.1038/s41598-021-92327-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 06/07/2021] [Indexed: 02/05/2023] Open
Abstract
Numerical simulations and analytical calculations are performed to support the design of grating-coupled planar optical waveguides for biological sensing. Near cut-off and far from cut-off modes are investigated, and their characteristics and suitability for sensing are compared. The numerical simulations reveal the high sensitivity of the guided mode intensity near the cut-off wavelength for any refractive index change along the waveguide. Consequently, it is sufficient to monitor the intensity change of the near cut-off sensing mode, which leads to a simpler sensor design compared to those setups where the resonant wavelength shift of the guided mode is monitored with high precision. The operating wavelength and the sensitivity of the proposed device can be tuned by varying the geometrical parameters of the corrugated waveguide. These results may lead to the development of highly sensitive integrated sensors, which have a simple design and therefore are cost-effective for a wide range of applications. These numerical findings are supported with experimental results, where the cut-off sensing mode was identified.
Collapse
Affiliation(s)
- Balint Kovacs
- Nanobiosensorics Laboratory, ELKH EK MFA, Budapest, Hungary.
- Division of Medical Image Computing (MIC), German Cancer Research Center (DKFZ), Heidelberg, Germany.
- Medical Faculty Heidelberg, Heidelberg University, Heidelberg, Germany.
| | - Fabio Aldo Kraft
- Institute of Electrical Engineering and Information Technology, Kiel University, Kiel, Germany
| | - Zsolt Szabo
- Faculty of Information Technology and Bionics, Pázmány Péter Catholic University, Budapest, Hungary
| | | | - Martina Gerken
- Institute of Electrical Engineering and Information Technology, Kiel University, Kiel, Germany
| | - Robert Horvath
- Nanobiosensorics Laboratory, ELKH EK MFA, Budapest, Hungary
| |
Collapse
|
50
|
Ackroyd AJ, Holló G, Mundoor H, Zhang H, Gang O, Smalyukh II, Lagzi I, Kumacheva E. Self-organization of nanoparticles and molecules in periodic Liesegang-type structures. Sci Adv 2021; 7:eabe3801. [PMID: 33863721 PMCID: PMC8051880 DOI: 10.1126/sciadv.abe3801] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Accepted: 03/02/2021] [Indexed: 05/31/2023]
Abstract
Chemical organization in reaction-diffusion systems offers a strategy for the generation of materials with ordered morphologies and structural hierarchy. Periodic structures are formed by either molecules or nanoparticles. On the premise of new directing factors and materials, an emerging frontier is the design of systems in which the precipitation partners are nanoparticles and molecules. We show that solvent evaporation from a suspension of cellulose nanocrystals (CNCs) and l-(+)-tartaric acid [l-(+)-TA] causes phase separation and precipitation, which, being coupled with a reaction/diffusion, results in rhythmic alternation of CNC-rich and l-(+)-TA-rich rings. The CNC-rich regions have a cholesteric structure, while the l-(+)-TA-rich bands are formed by radially aligned elongated bundles. The moving edge of the pattern propagates with a finite constant velocity, which enables control of periodicity by varying film preparation conditions. This work expands knowledge about self-organizing reaction-diffusion systems and offers a strategy for the design of self-organizing materials.
Collapse
Affiliation(s)
- Amanda J Ackroyd
- Department of Chemistry, University of Toronto, Toronto, ON M5S 3H6, Canada
| | - Gábor Holló
- BME-MTA Condensed Matter Physics Research Group, Budapest H-1111, Hungary
| | - Haridas Mundoor
- Department of Physics, Materials Science and Engineering and Renewable and Sustainable Energy Institute (RASEI), University of Colorado, Boulder, CO 80309, USA
| | - Honghu Zhang
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - Oleg Gang
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY 11973, USA
- Departments of Chemical Engineering and Applied Physics and Applied Mathematics, Columbia University, New York, NY 10027, USA
| | - Ivan I Smalyukh
- Department of Physics, Materials Science and Engineering and Renewable and Sustainable Energy Institute (RASEI), University of Colorado, Boulder, CO 80309, USA
| | - István Lagzi
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY 11973, USA.
- Department of Physics, Budapest University of Technology and Economics, Budapest H-1111, Hungary
| | - Eugenia Kumacheva
- Department of Chemistry, University of Toronto, Toronto, ON M5S 3H6, Canada.
- Department of Chemistry, Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, ON M5S 3H6, Canada
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, ON M5S 3H6, Canada
| |
Collapse
|