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Milcheva R, Hurníková Z, Todorova K, Dilcheva V, Petkova S, Janega P, Babál P. Down-regulation of neuronal form of Nitric oxide synthase in the Nurse cell of Trichinella spiralis. Helminthologia 2024; 61:40-45. [PMID: 38659468 PMCID: PMC11038256 DOI: 10.2478/helm-2024-0003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Accepted: 11/16/2023] [Indexed: 04/26/2024] Open
Abstract
The free radical nitric oxide (NO) and Ca2+ are critical regulators of skeletal muscle exercise performance and fatigue. The major source of NO in skeletal muscle cells is the neuronal form of the enzyme Nitric oxide synthase (nNOS). One of the most peculiar characteristics of the Nurse cell of Trichinella spiralis (T. spiralis) is the complete loss of the contractile capabilities of its derivative striated muscle fiber. The aim of the present study was to clarify the expression of nNOS protein and mRNA in striated muscles during the muscle phase of T. spiralis infection in mice. Muscle tissue samples were collected from mice at days 0, 14, 24, and 35 post infection (d.p.i.). The expression of nNOS was investigated by immunohistochemistry, and the expression levels of mRNA of mouse Nitric oxide synthase 1 (Nos1) by real-time PCR. The presence of nNOS protein was still well observable in the disintegrated sarcoplasm at the early stage of infection. The cytoplasm of the developing and mature Nurse cell showed the absence of this protein. At least at the beginning of the Nurse cell development, Trichinella uses the same repairing process of skeletal muscle cell, induced after any trauma and this corroborates very well our results concerning the nNOS expression on day 14 p.i. At a later stage, however, we could suggest that the down-regulation of nNOS in the Nurse cell of T. spiralis either serves a protective function or is an outcome of the genetic identity of the Nurse cell.
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Affiliation(s)
- R. Milcheva
- Institute of Experimental Morphology, Pathology and Anthropology with Museum, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., block 25, Sofia1113, Bulgaria
| | - Z. Hurníková
- Institute of Parasitology, Slovak Academy of Sciences, Hlinkova 3, 04 001Košice, Slovak Republic
| | - K. Todorova
- Institute of Experimental Morphology, Pathology and Anthropology with Museum, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., block 25, Sofia1113, Bulgaria
| | - V. Dilcheva
- Institute of Experimental Morphology, Pathology and Anthropology with Museum, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., block 25, Sofia1113, Bulgaria
| | - S. Petkova
- Institute of Experimental Morphology, Pathology and Anthropology with Museum, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., block 25, Sofia1113, Bulgaria
| | - P. Janega
- Department of Pathology, Faculty of Medicine, Comenius University in Bratislava, Sasinkova 4, 811 08Bratislava, Slovak Republic
| | - P. Babál
- Department of Pathology, Faculty of Medicine, Comenius University in Bratislava, Sasinkova 4, 811 08Bratislava, Slovak Republic
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Hadzega D, Babisova K, Hyblova M, Janostiakova N, Sabaka P, Janega P, Minarik G. Analysis of transcriptomics data from COVID-19 patients: a pilot research. Folia Microbiol (Praha) 2024; 69:155-164. [PMID: 38240884 PMCID: PMC10876742 DOI: 10.1007/s12223-024-01130-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: 08/30/2023] [Accepted: 01/03/2024] [Indexed: 02/21/2024]
Abstract
During SARS-CoV-2 infection, the virus transforms the infected host cell into factories that produce new viral particles. As infection progresses, the infected cells undergo numerous changes in various pathways. One of these changes is the occurrence of a cytokine storm, which leads to severe symptoms. In this study, we examined the transcriptomic changes caused by COVID-19 by analyzing RNA-seq data obtained from COVID-19-positive patients as well as COVID-19-negative donors. RNA-seq data were collected for the purpose of identification of potential biomarkers associated with a different course of the disease. We analyzed the first datasets, consisting of 96 samples to validate our methods. The objective of this publication is to report the pilot results. To explore potential biomarkers related to disease severity, we conducted a differential expression analysis of human transcriptome, focusing on COVID-19 positivity and symptom severity. Given the large number of potential biomarkers we identified, we further performed pathway enrichment analysis with terms from Kyoto Encyclopedia of Genes and Genomics (KEGG) to obtain a more profound understanding of altered pathways. Our results indicate that pathways related to immune processes, response to infection, and multiple signaling pathways were affected. These findings align with several previous studies that also reported the influence of SARS-CoV-2 infection on these pathways.
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Affiliation(s)
| | | | | | - Nikola Janostiakova
- Comenius University in Bratislava, Medical Faculty, Institute of Medical Biology, Genetics and Clinical Genetics, Špitálska 24, Bratislava, Slovakia
| | - Peter Sabaka
- Department of Infectology and Geographical Medicine, Faculty of Medicine, Comenius University in Brati-Slava, Bratislava, Slovakia
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Berecova Z, Juskanic D, Hazlinger M, Uhnak M, Janega P, Rudnay M, Hatala R. CT quantification of COVID-19 pneumonia extent to predict individualized outcome. BRATISL MED J 2024; 125:159-165. [PMID: 38385541 DOI: 10.4149/bll_2024_25] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2024]
Abstract
OBJECTIVES This study aimed to predict individual COVID-19 patient prognosis at hospital admission using artificial intelligence (AI)-based quantification of computed tomography (CT) pulmonary involvement. BACKGROUND Assessing patient prognosis in COVID-19 pneumonia is crucial for patient management and hospital and ICU organization. METHODS We retrospectively analyzed 559 patients with PCR-verified COVID-19 pneumonia referred to the hospital for a severe disease course. We correlated the CT extent of pulmonary involvement with patient outcome. We also attempted to define cut-off values of pulmonary involvement for predicting different outcomes. RESULTS CT-based disease extent quantification is an independent predictor of patient morbidity and mortality, with the prognosis being impacted also by age and cardiovascular comorbidities. With the use of explored cut-off values, we divided patients into three groups based on their extent of disease: (1) less than 28 % (sensitivity 65.4 %; specificity 89.1 %), (2) ranging from 28 % (31 %) to 47 % (sensitivity 87.1 %; specificity 62.7 %), and (3) above 47 % (sensitivity 87.1 %; specificity, 62.7 %), representing low risk, risk for oxygen therapy and invasive pulmonary ventilation, and risk of death, respectively. CONCLUSION CT quantification of pulmonary involvement using AI-based software helps predict COVID-19 patient outcomes (Tab. 4, Fig. 4, Ref. 38).
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Blasko F, Krivosikova L, Babal P, Breza J, Trebaticky B, Kuruc R, Mravec B, Janega P. Innervation density and types of nerves in prostate cancer. Neoplasma 2023; 70:787-795. [PMID: 38247335 DOI: 10.4149/neo_2023_231116n593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Accepted: 12/20/2023] [Indexed: 01/23/2024]
Abstract
Innervation of cancerous tissue represents an important pathway enabling the nervous system to influence the processes associated with the initiation, progression, and metastasis of a neoplastic process. In the context of prostate cancer, several papers report the presence of innervation and its modulating effect on the cancer prognosis. However, most of the data are experimental, with limited information on human prostate cancer innervation. Morphometric analysis of archival prostate specimen immunohistochemistry with neural markers PGP9.5 and S100 showed a significant decrease of nerve density in the prostate cancer (n=44) compared to the normal prostate tissue (n=18) and benign prostatic hyperplasia (n=28). Sympathetic nerves were detected with TH, parasympathetic with VAChT, and sensory nerves with SP and CGRP protein detection. Dual immunofluorescence revealed numerous sympathetic nerves in normal prostate and benign prostatic hyperplasia, especially in the peripheral parts. Only a few parasympathetic nerves were found between the glands and in the peripheral parts of the prostate and benign hyperplasia. Sporadic positivity for sensory innervation was present only in approximately 1/10 of nerve fibers, especially in the larger nerves. The pattern of innervation in prostate cancer was analogous to that in normal prostate gland and benign prostatic hyperplasia but there was a significantly lower amount of all nerve types, especially in high-grade carcinoma cases. Although not significant, there was a tendency of decreasing innervation density with increasing Gleason score. Regarding the low density of nerves in prostate carcinoma, the significantly lower PCNA counts in nerves of the cancer specimens cannot be ascribed to lower proliferation activity. Our data confirmed the lower nerve density in the prostate cancer compared to the benign prostate tissue. We could not approve an increased nerve proliferation activity in prostate cancer. All nerve types, most the sympathetic, less the parasympathetic, and the sensory nerves, are present in prostate cancer. The highest nerve density at the periphery of the cancer tissue implies this to be the result of an expansive tumor growth. It is evident that the results of experimental prostate cancer models can be applied to human pathology only to a certain extent. The relation between the range of innervation and the biology of prostate cancer is very complex and will require more detailed information to be applied in therapeutic solutions.
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Affiliation(s)
- Filip Blasko
- Institute of Physiology, Faculty of Medicine, Comenius University Bratislava, Bratislava, Slovakia
- Biomedical Research Center, Institute of Experimental Endocrinology, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Lucia Krivosikova
- Institute of Pathological Anatomy, Faculty of Medicine, Comenius University in Bratislava, Bratislava, Slovakia
| | - Pavel Babal
- Institute of Pathological Anatomy, Faculty of Medicine, Comenius University in Bratislava, Bratislava, Slovakia
| | - Jan Breza
- Department of Pediatric Urology, Faculty of Medicine, Comenius University in Bratislava, Bratislava, Slovakia
| | - Branislav Trebaticky
- Department of Urology, Faculty of Medicine, Comenius University in Bratislava, Bratislava, Slovakia
| | - Roman Kuruc
- Health Care Surveillance Authority of the Slovak Republic, Bratislava, Slovakia
| | - Boris Mravec
- Institute of Physiology, Faculty of Medicine, Comenius University Bratislava, Bratislava, Slovakia
- Biomedical Research Center, Institute of Experimental Endocrinology, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Pavol Janega
- Institute of Pathological Anatomy, Faculty of Medicine, Comenius University in Bratislava, Bratislava, Slovakia
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Krivosikova L, Kuracinova T, Martanovic P, Hyblova M, Kaluzay J, Uhrinova A, Janega P, Babal P. Long COVID Complicated by Fatal Cytomegalovirus and Aspergillus Infection of the Lungs: An Autopsy Case Report. Viruses 2023; 15:1810. [PMID: 37766216 PMCID: PMC10535245 DOI: 10.3390/v15091810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 08/18/2023] [Accepted: 08/23/2023] [Indexed: 09/29/2023] Open
Abstract
After the acute phase of COVID-19, some patients develop long COVID. This term is used for a variety of conditions with a complex, yet not fully elucidated etiology, likely including the prolonged persistence of the virus in the organism and progression to lung fibrosis. We present a unique autopsy case of a patient with severe COVID-19 with prolonged viral persistence who developed interstitial lung fibrosis complicated by a fatal combination of cytomegalovirus and Aspergillus infection. SARS-CoV-2 virus was detected at autopsy in the lungs more than two months after the acute infection, although tests from the nasopharynx were negative. Immune dysregulation after COVID-19 and the administration of corticoid therapy created favorable conditions for the cytomegalovirus and Aspergillus infection that were uncovered at autopsy. These pathogens may represent a risk for opportunistic infections, complicating not only the acute coronavirus infection but also long COVID, as was documented in the presented case.
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Affiliation(s)
- Lucia Krivosikova
- Institute of Pathological Anatomy, Faculty of Medicine, Comenius University in Bratislava, 814 99 Bratislava, Slovakia; (L.K.); (T.K.); (P.J.)
| | - Tereza Kuracinova
- Institute of Pathological Anatomy, Faculty of Medicine, Comenius University in Bratislava, 814 99 Bratislava, Slovakia; (L.K.); (T.K.); (P.J.)
| | - Peter Martanovic
- Health Care Surveillance Authority, 829 24 Bratislava, Slovakia;
| | | | - Jozef Kaluzay
- 4th Department of Internal Medicine, Comenius University in Bratislava, 814 99 Bratislava, Slovakia;
| | | | - Pavol Janega
- Institute of Pathological Anatomy, Faculty of Medicine, Comenius University in Bratislava, 814 99 Bratislava, Slovakia; (L.K.); (T.K.); (P.J.)
- Centre of Experimental Medicine, Institute of Normal and Pathological Physiology, Slovak Academy of Sciences, 813 71 Bratislava, Slovakia
| | - Pavel Babal
- Institute of Pathological Anatomy, Faculty of Medicine, Comenius University in Bratislava, 814 99 Bratislava, Slovakia; (L.K.); (T.K.); (P.J.)
- Medirex Group Academy, n.p.o., 949 05 Nitra, Slovakia;
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Kodada D, Hyblova M, Krumpolec P, Janostiakova N, Barath P, Grendar M, Blandova G, Petrovic O, Janega P, Repiska V, Minarik G. The Potential of Liquid Biopsy in Detection of Endometrial Cancer Biomarkers: A Pilot Study. Int J Mol Sci 2023; 24:ijms24097811. [PMID: 37175518 PMCID: PMC10178554 DOI: 10.3390/ijms24097811] [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: 04/03/2023] [Revised: 04/19/2023] [Accepted: 04/20/2023] [Indexed: 05/15/2023] Open
Abstract
Endometrial cancer belongs to the most common gynecologic cancer types globally, with increasing incidence. There are numerous ways of classifying different cases. The most recent decade has brought advances in molecular classification, which show more accurate prognostic factors and the possibility of personalised adjuvant treatment. In addition, diagnostic approaches lag behind these advances, with methods causing patients discomfort while lacking the reproducibility of tissue sampling for biopsy. Minimally invasive liquid biopsies could therefore represent an alternative screening and diagnostic approach in patients with endometrial cancer. The method could potentially detect molecular changes in this cancer type and identify patients at early stages. In this pilot study, we tested such a detection method based on circulating tumour DNA isolated from the peripheral blood plasma of 21 Slovak endometrial cancer patients. We successfully detected oncomutations in the circulating DNA of every single patient, although the prognostic value of the detected mutations failed to offer certainty. Furthermore, we detected changes associated with clonal hematopoiesis, including DNMT3A mutations, which were present in the majority of circulating tumour DNA samples.
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Affiliation(s)
- Dominik Kodada
- Medirex Group Academy, 94905 Nitra, Slovakia
- Faculty of Medicine, Comenius University in Bratislava, 84215 Bratislava, Slovakia
| | | | | | - Nikola Janostiakova
- Medirex Group Academy, 94905 Nitra, Slovakia
- Faculty of Medicine, Comenius University in Bratislava, 84215 Bratislava, Slovakia
| | | | - Marian Grendar
- Medirex Group Academy, 94905 Nitra, Slovakia
- Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, 03601 Martin, Slovakia
| | - Gabriela Blandova
- Faculty of Medicine, Comenius University in Bratislava, 84215 Bratislava, Slovakia
| | | | - Pavol Janega
- Medirex Group Academy, 94905 Nitra, Slovakia
- Faculty of Medicine, Comenius University in Bratislava, 84215 Bratislava, Slovakia
| | - Vanda Repiska
- Faculty of Medicine, Comenius University in Bratislava, 84215 Bratislava, Slovakia
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Forgacova N, Holesova Z, Hekel R, Sedlackova T, Pos Z, Krivosikova L, Janega P, Kuracinova KM, Babal P, Radvak P, Radvanszky J, Gazdarica J, Budis J, Szemes T. Evaluation and limitations of different approaches among COVID-19 fatal cases using whole-exome sequencing data. BMC Genomics 2023; 24:12. [PMID: 36627554 PMCID: PMC9830622 DOI: 10.1186/s12864-022-09084-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 12/15/2022] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND COVID-19 caused by the SARS-CoV-2 infection may result in various disease symptoms and severity, ranging from asymptomatic, through mildly symptomatic, up to very severe and even fatal cases. Although environmental, clinical, and social factors play important roles in both susceptibility to the SARS-CoV-2 infection and progress of COVID-19 disease, it is becoming evident that both pathogen and host genetic factors are important too. In this study, we report findings from whole-exome sequencing (WES) of 27 individuals who died due to COVID-19, especially focusing on frequencies of DNA variants in genes previously associated with the SARS-CoV-2 infection and the severity of COVID-19. RESULTS We selected the risk DNA variants/alleles or target genes using four different approaches: 1) aggregated GWAS results from the GWAS Catalog; 2) selected publications from PubMed; 3) the aggregated results of the Host Genetics Initiative database; and 4) a commercial DNA variant annotation/interpretation tool providing its own knowledgebase. We divided these variants/genes into those reported to influence the susceptibility to the SARS-CoV-2 infection and those influencing the severity of COVID-19. Based on the above, we compared the frequencies of alleles found in the fatal COVID-19 cases to the frequencies identified in two population control datasets (non-Finnish European population from the gnomAD database and genomic frequencies specific for the Slovak population from our own database). When compared to both control population datasets, our analyses indicated a trend of higher frequencies of severe COVID-19 associated risk alleles among fatal COVID-19 cases. This trend reached statistical significance specifically when using the HGI-derived variant list. We also analysed other approaches to WES data evaluation, demonstrating its utility as well as limitations. CONCLUSIONS Although our results proved the likely involvement of host genetic factors pointed out by previous studies looking into severity of COVID-19 disease, careful considerations of the molecular-testing strategies and the evaluated genomic positions may have a strong impact on the utility of genomic testing.
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Affiliation(s)
- Natalia Forgacova
- grid.7634.60000000109409708Comenius University Science Park, Bratislava, 841 04 Slovakia ,grid.7634.60000000109409708Faculty of Natural Sciences, Comenius University, Bratislava, 841 04 Slovakia ,grid.419303.c0000 0001 2180 9405Institute of Clinical and Translational Research, Biomedical Research Centre, Slovak Academy of Sciences, Bratislava, 845 05 Slovakia
| | | | - Rastislav Hekel
- grid.7634.60000000109409708Comenius University Science Park, Bratislava, 841 04 Slovakia ,grid.7634.60000000109409708Faculty of Natural Sciences, Comenius University, Bratislava, 841 04 Slovakia ,grid.455020.6Geneton Ltd, Bratislava, 841 04 Slovakia ,grid.450672.20000 0001 2169 605XSlovak Centre of Scientific and Technical Information, Bratislava, 811 04 Slovakia
| | - Tatiana Sedlackova
- grid.7634.60000000109409708Comenius University Science Park, Bratislava, 841 04 Slovakia ,grid.455020.6Geneton Ltd, Bratislava, 841 04 Slovakia
| | - Zuzana Pos
- grid.7634.60000000109409708Comenius University Science Park, Bratislava, 841 04 Slovakia ,grid.419303.c0000 0001 2180 9405Institute of Clinical and Translational Research, Biomedical Research Centre, Slovak Academy of Sciences, Bratislava, 845 05 Slovakia ,grid.455020.6Geneton Ltd, Bratislava, 841 04 Slovakia
| | - Lucia Krivosikova
- grid.7634.60000000109409708Department of Pathology, Faculty of Medicine, Comenius University, Bratislava, 813 72 Slovakia
| | - Pavol Janega
- grid.7634.60000000109409708Department of Pathology, Faculty of Medicine, Comenius University, Bratislava, 813 72 Slovakia
| | - Kristina Mikus Kuracinova
- grid.7634.60000000109409708Department of Pathology, Faculty of Medicine, Comenius University, Bratislava, 813 72 Slovakia
| | - Pavel Babal
- grid.7634.60000000109409708Department of Pathology, Faculty of Medicine, Comenius University, Bratislava, 813 72 Slovakia
| | - Peter Radvak
- grid.7634.60000000109409708Comenius University Science Park, Bratislava, 841 04 Slovakia
| | - Jan Radvanszky
- grid.7634.60000000109409708Comenius University Science Park, Bratislava, 841 04 Slovakia ,grid.7634.60000000109409708Faculty of Natural Sciences, Comenius University, Bratislava, 841 04 Slovakia ,grid.419303.c0000 0001 2180 9405Institute of Clinical and Translational Research, Biomedical Research Centre, Slovak Academy of Sciences, Bratislava, 845 05 Slovakia ,grid.455020.6Geneton Ltd, Bratislava, 841 04 Slovakia
| | - Juraj Gazdarica
- grid.7634.60000000109409708Faculty of Natural Sciences, Comenius University, Bratislava, 841 04 Slovakia ,grid.455020.6Geneton Ltd, Bratislava, 841 04 Slovakia ,grid.450672.20000 0001 2169 605XSlovak Centre of Scientific and Technical Information, Bratislava, 811 04 Slovakia
| | - Jaroslav Budis
- grid.7634.60000000109409708Comenius University Science Park, Bratislava, 841 04 Slovakia ,grid.455020.6Geneton Ltd, Bratislava, 841 04 Slovakia ,grid.450672.20000 0001 2169 605XSlovak Centre of Scientific and Technical Information, Bratislava, 811 04 Slovakia
| | - Tomas Szemes
- grid.7634.60000000109409708Comenius University Science Park, Bratislava, 841 04 Slovakia ,grid.7634.60000000109409708Faculty of Natural Sciences, Comenius University, Bratislava, 841 04 Slovakia ,grid.455020.6Geneton Ltd, Bratislava, 841 04 Slovakia
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Mosna K, Vadkerti P, Papp L, Palkovic M, Janega P, Babal P. Guillain-Barré Syndrome with Lethal Outcome Following COVID-19 Vaccination - Case Report Supported by Autopsy Examination. Open Neurol J 2022. [DOI: 10.2174/1874205x-v16-e2207270] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Objective:
After the outbreak of the global pandemic caused by SARS-CoV-2 infection at the end of the year 2019, it took one year to start vaccination against this infection with products from various manufacturers. As of November 2021, more than 8 billion vaccine doses against COVID-19 have been administered, which is essentially linked to a spike in adverse events reports following these vaccinations, including a number of neurological adverse events.
Case Report:
We report a case of a 71-year-old patient with lethal fulminant onset of Guillain-Barré syndrome after the second dose of mRNA vaccine tozinameran. This is, to our best knowledge, the first case report of this adverse event supported by autopsy and histological examination. The patient presented with progressive ascending weakness and paresthesia, with typical cytoalbuminologic dissociation in cerebrospinal fluid and severe motoric and sensitive axonal-demyelinating polyneuropathy on electromyography. The patient’s history and complex diagnostic workup did not reveal any other possible causative factors. The patient did not respond to the treatment with intravenous immunoglobulins and died 10 days later due to aspiration bronchopneumonia as a complication of respiratory muscles paralysis.
Conclusion:
Most of the reported adverse reactions following COVID-19 vaccination include mild or moderate events noticed in the post-vaccination period; however, reports of possible lethal outcomes are no exception. Still, the overall incidence of GBS after vaccination does not significantly exceed its incidence in the general population. Each such report should be carefully examined by a team of specialists to prevent overestimation of lethal adverse events linked to vaccinations, especially in fatalities that happen in the post-vaccination period.
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Palacka P, Janega P, Polakova H, Slopovsky J, De Angelis V, Mego M. Pericardial malignant infiltration as the cause of sudden death of a patient with metastatic urothelial carcinoma treated with atezolizumab. BMC Urol 2022; 22:108. [PMID: 35850756 PMCID: PMC9295275 DOI: 10.1186/s12894-022-01064-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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Accepted: 07/13/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Muscle-infiltrating urothelial carcinoma of the bladder is the most common genitourinary cancer. Immunotherapeutic agents targeting protein-1 programmed death or protein-1 programmed death ligand are currently considered the standard treatment in patients with either inoperable locally advanced or metastatic urothelial carcinoma (MUC) after platinum-based chemotherapy failure. CASE PRESENTATION Here we report the case of a Caucasian male patient with metastatic urothelial carcinoma treated with second-line atezolizumab within a trial who achieved complete response by computed tomography (CT), but suddenly died due to cardiac tamponade resulting from malignant pericardial infiltration. Histopathology confirmed this as the only site of disease progression. CONCLUSIONS Cardiovascular toxicity of atezolizumab was considered within differential diagnoses, however histopathological examination revealed progression of malignancy in the pericardium as the cause of the sudden death. This is the first published case report of a patient treated with second-line atezolizumab in whom the rare disease progression of pericardial infiltration was confirmed. Despite its rarity, the clinicians should always consider the possibility of pericardial metastases.
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Affiliation(s)
- Patrik Palacka
- 2nd Department of Oncology, Faculty of Medicine, Comenius University in Bratislava, Bratislava, Slovakia. .,National Cancer Institute, Klenova 1, 833 10, Bratislava, Slovakia.
| | - Pavol Janega
- Department of Pathology, Faculty of Medicine, Comenius University in Bratislava, Bratislava, Slovakia
| | - Hana Polakova
- Department of Radiology, National Cancer Institute, Bratislava, Slovakia
| | - Jan Slopovsky
- 2nd Department of Oncology, Faculty of Medicine, Comenius University in Bratislava, Bratislava, Slovakia.,National Cancer Institute, Klenova 1, 833 10, Bratislava, Slovakia
| | - Valentina De Angelis
- 2nd Department of Oncology, Faculty of Medicine, Comenius University in Bratislava, Bratislava, Slovakia.,National Cancer Institute, Klenova 1, 833 10, Bratislava, Slovakia
| | - Michal Mego
- 2nd Department of Oncology, Faculty of Medicine, Comenius University in Bratislava, Bratislava, Slovakia.,National Cancer Institute, Klenova 1, 833 10, Bratislava, Slovakia
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Milcheva RS, Janega P, Petkova SL, Todorova KS, Ivanov DG, Babál P. Absence of ST3Gal2 and ST3Gal4 sialyltransferase expressions in the nurse cell of Trichinella spiralis. BJVM 2022. [DOI: 10.15547/bjvm.2020-0006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
This study was aimed to describe some glycosylation changes in the Nurse cell of Trichinella spiralis in mouse skeletal muscle. Tissue specimens were subjected to lectin histochemistry with Maackia amurensis lectin (MAL), Peanut agglutinin (PNA) and neuraminidase desialylation in order to verify and analyse the structure of α-2,3-sialylated glycoproteins, discovered within the affected sarcoplasm. The expressions of two sialyltransferases were examined by immunohistochemistry. It was found out that the occupied portion of skeletal muscle cell responded with synthesis of presumable sialyl-T-antigen and α-2,3-sialyllactosamine structure, that remained accumulated during the time course of Nurse cell development. The enzymes β-galactoside-α-2,3-sialyltransferases 2 and 4, which could be responsible for the sialylation of each of these structures, were however not present in the invaded muscle portions, although their expressions in the healthy surrounding tissue remained persistent. Our results contribute to the progressive understanding about the amazing abilities of Trichinella spiralis to manipulate the genetic programme of its host.
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Affiliation(s)
- R. S. Milcheva
- Institute of Experimental Morphology, Pathology and Anthropology with Museum – Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - P. Janega
- Department of Pathology, Faculty of Medicine, Comenius University in Bratislava, Bratislava, Slovakia
| | - S. L. Petkova
- Institute of Experimental Morphology, Pathology and Anthropology with Museum – Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - K. S. Todorova
- Institute of Experimental Morphology, Pathology and Anthropology with Museum – Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - D. G. Ivanov
- Institute of Experimental Morphology, Pathology and Anthropology with Museum – Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - P. Babál
- Department of Pathology, Faculty of Medicine, Comenius University in Bratislava, Bratislava, Slovakia
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11
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Barczi T, Brody P, Klein M, Varga I, Bies Pivackova L, Krenek P, Janega P, Babal P. Proapoptotic and antiapoptotic stimuli alternation in myocardial infarction experimental model. BRATISL MED J 2021; 123:22-26. [PMID: 34967654 DOI: 10.4149/bll_2022_004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Myocardial infarction is a life-threatening complication of the coronary artery disease - the leading cause of premature death worldwide. The severity of this condition is the result of cellular death following the myocardial ischaemia, which occurs via several mechanism including apoptosis. For the research of this condition, animal models are often employed. We established isoprenaline-induced rat model of myocardial infarction, focusing on the immunohistochemical analysis of the expression of antiapoptotic and proapoptotic proteins BCL-2 and BAX, respectively. Apoptosis (based on BAX-positivity) was activated in cardiac muscle cells within the first day, later on day 8 also in fibroblasts of the forming scar tissue. Antiapoptosis in cardiac muscle cells was weak to moderate on the day 1 and 2, on the day 8 macrophages were strongly positive for BCL-2. The results confirmed that programmed cell death as well as mechanisms of antiapoptosis contribute to the pathogenesis of myocardial infarction. Previous research demonstrated that by experimentally affecting proapoptotic and antiapoptotic signals, it is possible to influence various aspects of myocardial infarction including: infarction size, cardiac remodelling and prognosis of the heart failure. Future research is warranted to fully elucidate the role of this process during myocardial infarction, which will result in refined diagnostic and therapeutic strategies (Tab. 1, Fig. 1, Ref. 21). Keywords: myocardial infarction, isoprenaline, apoptosis, necrosis, BCL-2, BAX.
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Salvaras L, Kovacic T, Janega P, Liptak B, Sasvariova M, Michalikova D, Tyukos Kaprinay B, Bezek S, Sotnikova R, Knezl V, Sankovicova T, Gasparova Z. Synthetic Pyridoindole and Rutin Affect Upregulation of Endothelial Nitric Oxide Synthase and Heart Function in Rats Fed a High-Fat-Fructose Diet. Physiol Res 2021; 70:851-863. [PMID: 34717058 PMCID: PMC8815465 DOI: 10.33549/physiolres.934670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Accepted: 08/10/2021] [Indexed: 11/25/2022] Open
Abstract
Metabolic syndrome (MetS) belongs to the serious health complications expanding in cardiovascular diseases, obesity, insulin resistance, and hyperglycemia. In this study, hypertriacylglycerolemic rats fed a high-fat-fructose diet (HFFD) were used as an experimental model of MetS to explore the effect of tested compounds. Effects of a new prospective pyridoindole derivative coded SMe1EC2 and the natural polyphenol rutin were tested. Endothelial nitric oxide synthase (NOS3) and nuclear factor kappa B (NF-?B) expression were assessed in the left ventricle immunohistochemically and left ventricle activity was monitored in isolated perfused rat hearts. NOS3 activity in the left ventricle decreased markedly as a result of a HFFD. NOS3 expression was upregulated by both substances. NF-?B expression was increased in the MetS group in comparison to control rats and the expression further increased in the SMe1EC2 treatment. This compound significantly improved the coronary flow in comparison to the control group during reperfusion of the heart followed after ischemia. Further, it tended to increase left ventricular systolic pressure, heart product, rate of maximal contraction and relaxation, and coronary flow during baseline assessment. Moreover, the compound SMe1EC2 decreased the sensitivity of hearts to electrically induced ventricular fibrillation. Contrary to this rutin decreased coronary flow in reperfusion. Present results suggest that despite upregulation of NOS3 by both substances tested, pyridoindole SMe1EC2 rather than rutin could be suitable in treatment strategies of cardiovascular disorders in MetS-like conditions.
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Affiliation(s)
- L Salvaras
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Comenius University, Bratislava, Slovak Republic
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13
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Plava J, Burikova M, Cihova M, Trnkova L, Smolkova B, Babal P, Krivosikova L, Janega P, Rojikova L, Drahosova S, Bohac M, Danisovic L, Kucerova L, Miklikova S. Chemotherapy-triggered changes in stromal compartment drive tumor invasiveness and progression of breast cancer. J Exp Clin Cancer Res 2021; 40:302. [PMID: 34579743 PMCID: PMC8477536 DOI: 10.1186/s13046-021-02087-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 08/26/2021] [Indexed: 12/19/2022]
Abstract
Background Chemotherapy remains a standard treatment option for breast cancer despite its toxic effects to normal tissues. However, the long-lasting effects of chemotherapy on non-malignant cells may influence tumor cell behavior and response to treatment. Here, we have analyzed the effects of doxorubicin (DOX) and paclitaxel (PAC), commonly used chemotherapeutic agents, on the survival and cellular functions of mesenchymal stromal cells (MSC), which comprise an important part of breast tumor microenvironment. Methods Chemotherapy-exposed MSC (DOX-MSC, PAC-MSC) were co-cultured with three breast cancer cell (BCC) lines differing in molecular characteristics to study chemotherapy-triggered changes in stromal compartment of the breast tissue and its relevance to tumor progression in vitro and in vivo. Conditioned media from co-cultured cells were used to determine the cytokine content. Mixture of BCC and exposed or unexposed MSC were subcutaneously injected into the immunodeficient SCID/Beige mice to analyze invasion into the surrounding tissue and possible metastases. The same mixtures of cells were applied on the chorioallantoic membrane to study angiogenic potential. Results Therapy-educated MSC differed in cytokine production compared to un-exposed MSC and influenced proliferation and secretory phenotype of tumor cells in co-culture. Histochemical tumor xenograft analysis revealed increased invasive potential of tumor cells co-injected with DOX-MSC or PAC-MSC and also the presence of nerve fiber infiltration in tumors. Chemotherapy-exposed MSC have also influenced angiogenic potential in the model of chorioallantoic membrane. Conclusions Data presented in this study suggest that neoadjuvant chemotherapy could possibly alter otherwise healthy stroma in breast tissue into a hostile tumor-promoting and metastasis favoring niche. Understanding of the tumor microenvironment and its complex net of signals brings us closer to the ability to recognize the mechanisms that prevent failure of standard therapy and accomplish the curative purpose. Supplementary Information The online version contains supplementary material available at 10.1186/s13046-021-02087-2.
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Affiliation(s)
- Jana Plava
- Biomedical Research Center of the Slovak Academy of Sciences, Dubravska cesta 9, 845 05, Bratislava, Slovakia.
| | - Monika Burikova
- Biomedical Research Center of the Slovak Academy of Sciences, Dubravska cesta 9, 845 05, Bratislava, Slovakia
| | - Marina Cihova
- Biomedical Research Center of the Slovak Academy of Sciences, Dubravska cesta 9, 845 05, Bratislava, Slovakia
| | - Lenka Trnkova
- Biomedical Research Center of the Slovak Academy of Sciences, Dubravska cesta 9, 845 05, Bratislava, Slovakia
| | - Bozena Smolkova
- Biomedical Research Center of the Slovak Academy of Sciences, Dubravska cesta 9, 845 05, Bratislava, Slovakia
| | - Pavel Babal
- Department of Pathology, Faculty of Medicine, Comenius University in Bratislava, Sasinkova 4, 811 08, Bratislava, Slovakia
| | - Lucia Krivosikova
- Department of Pathology, Faculty of Medicine, Comenius University in Bratislava, Sasinkova 4, 811 08, Bratislava, Slovakia
| | - Pavol Janega
- Department of Pathology, Faculty of Medicine, Comenius University in Bratislava, Sasinkova 4, 811 08, Bratislava, Slovakia
| | - Lucia Rojikova
- Biomedical Research Center of the Slovak Academy of Sciences, Dubravska cesta 9, 845 05, Bratislava, Slovakia
| | - Slavka Drahosova
- Hermes LabSystems, s.r.o., Puchovska 12, 831 06, Bratislava, Slovakia
| | - Martin Bohac
- 2nd Department of Oncology, Faculty of Medicine, Comenius University, National Cancer Institute, Klenova 1, 833 10, Bratislava, Slovakia.,Department of Oncosurgery, National Cancer Institute, Klenova 1, Bratislava, Slovakia.,Regenmed Ltd, Medena 29, 811 08, Bratislava, Slovakia
| | - Lubos Danisovic
- Regenmed Ltd, Medena 29, 811 08, Bratislava, Slovakia.,Institute of Medical Biology, Genetics and Clinical Genetics, Faculty of Medicine, Comenius University in Bratislava, Sasinkova 4, 811 08, Bratislava, Slovakia
| | - Lucia Kucerova
- Biomedical Research Center of the Slovak Academy of Sciences, Dubravska cesta 9, 845 05, Bratislava, Slovakia
| | - Svetlana Miklikova
- Biomedical Research Center of the Slovak Academy of Sciences, Dubravska cesta 9, 845 05, Bratislava, Slovakia
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Jurišová S, Angelis De V, Makovník M, Hlavčák P, Janega P, Macák D, Chovanec M, Rejleková K, Pinďák D, Mardiak J, Mego M. Squamous cell carcinoma of the colon - a case report. Klin Onkol 2021; 33:380-384. [PMID: 33108883 DOI: 10.14735/amko2020380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND Primary squamous cell carcinomas (SCC) of the colon are extremely rare and occur predominantly in the fifth decade of life, with a slight prevalence in men. The most common anatomical sites are the rectum and the proximal colon. Clinical signs and common dia-gnostic methods cannot clearly distinguish SCC from adenocarcinoma. METHODS In this case report, we present a case of a 68-year-old patient with SCC of the cecum and colon ascendens, who was treated with resection and systemic gemcitabine- and cisplatin-based chemotherapy. RESULTS A 68-year-old patient underwent right-sided hemicolectomy for cecal and colon ascendens tumor, histologically poorly differentiated epidermoid carcinoma, grade 3 with an initial stage of pT4aN1aM0. Due to local recurrence at the resection site with suspected infiltration of straight and oblique abdominal muscles, he was treated with systemic gemcitabine and cisplatin based chemotherapy with partial remission. Subsequently, the postchemotherapeutic residual tumor was radically resected, achieving complete remission of the disease, which persists for 10 months after the surgery. CONCLUSION The case emphasizes the need for a multidisciplinary treatment approach of this rare disease. Early surgery plays a key role. Although the standard chemotherapy regimen is not well defined, the use of a combination of cisplatin and gemcitabine resulted in partial remission in our patient, which in turn allowed a radical resection of the relapse and subsequently achieved complete remission of the disease.
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Abstract
OBJECTIVES AND BACKGROUND Recently, a possible role of circadian system in the pathogenesis of various gastrointestinal disorders gained an attention. The association of circadian system with immune system activity and reciprocal connection with intestinal microbiota indicate possible links with inflammatory bowel diseases (IBD). METHODS The retrospective study provided a semiquantitative immunohistochemical analysis of the expression of 8 core circadian proteins (BMAL1, BMAL2, PER1, PER2, PER3, CLOCK, NPAS2 and TIMELESS) in the epithelial cells of intestinal mucosa in 24 patients with Crohn's disease (CD) and 26 patients with ulcerative colitis (UC). Samples from patients without history of IBD served as the control. The BMAL1 protein expression in intramucosal inflammatory cells was explored as well. RESULTS The expression of 5 core circadian proteins (BMAL1, PER1, PER3, TIMELESS and NAPS2) was decreased in mucosal epithelium of patients with IBD in comparison with the control samples, whereas the expression of BMAL1 and PER1 was more noticeably decreased in UC patients and PER3, TIMELESS and NPAS2 in CD patients. There was a decreased BMAL1 expression in intramucosal inflammatory cells of IBD patients. CONCLUSION Decreased core circadian proteins expression in colonic mucosa and in intramucosal inflammatory cells of IBD patients indicated a circadian rhythm deregulation as contributing factor in the development of IBD. To our knowledge, this is so far the most extensive immunohistochemical analysis performed on the samples of IBD patients evaluating the changes in circadian protein expression in the intestinal mucosa (Tab. 1, Fig. 2, Ref. 31).
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Dundr P, Němejcová K, Bártů M, Bennett RJ, Skálová H, Janega P, Stružinská I. The value of immunohistochemical methods in diagnosing endometrial carcinoma. Cesk Patol 2021; 57:73-85. [PMID: 34275317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The goal of this manuscript is to provide an overview of the significance of immunohistochemical methods in diagnosing endometrial carcinoma. The main points discussed include: the use of immunohistochemistry in the differential diagnosis of the main histological types of endometrial carcinoma, the difference between primary serous endometrial carcinoma and the involvement with high grade serous carcinoma of another primary source, the diagnosis of undifferentiated/dedifferentiated endometrial carcinoma, and diagnosing tumours with neuroendocrine differentiation. The role of p53 expression evaluation is also emphasized as a special area of interest, not only in the context of differential diagnosis, but also from the point of view of the prognosis and prediction of endometrial carcinoma as an ancillary marker for subtypization of these tumours.
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Dundr P, Cibula D, Foretová L, Macek M, Kopečková K, Petruželka L, Němejcová K, Bártů M, Hojný J, Hájková N, Jakša R, Janega P, Stružinská I. Gynecological lesions in hereditary cancer predisposition syndromes. Cesk Patol 2021; 57:96-104. [PMID: 34275319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Hereditary tumor syndromes with a possible manifestation in the female internal genital tract represent a heterogeneous group of diseases. The two most common entities are the hereditary breast and ovarian cancer syndrome, and the Lynch syndrome. The less common syndromes include the rhabdoid tumor predisposition syndrome, Cowden syndrome, tuberous sclerosis complex, DICER1 syndrome, nevoid basal cell carcinoma syndrome, Peutz-Jeghers syndrome, von Hippel-Lindau disease, and hereditary leiomyomatosis and renal cell cancer syndrome. The goal of this manuscript is to provide a comprehensive overview of those hereditary tumor syndromes which can manifest in the area of the female genital system, with an emphasis on their summary, the characteristics of the tumors which can develop in association with these syndromes, and the approach to the processing of prophylactically removed tissues and organs. The issue of Lynch syndrome screening is also discussed.
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18
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Stanko P, Baka T, Repova K, Aziriova S, Krajcirovicova K, Barta A, Janega P, Adamcova M, Paulis L, Simko F. Ivabradine Ameliorates Kidney Fibrosis in L-NAME-Induced Hypertension. Front Med (Lausanne) 2020; 7:325. [PMID: 32754607 PMCID: PMC7365878 DOI: 10.3389/fmed.2020.00325] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Accepted: 06/03/2020] [Indexed: 12/12/2022] Open
Abstract
Hypertension-induced renal injury is characterized by structural kidney alterations and function deterioration. Therapeutics for kidney protection are limited, thus novel renoprotectives in hypertension are being continuously sought out. Ivabradine, an inhibitor of the If current in the sinoatrial node reducing heart rate (HR), was shown to be of benefit in various cardiovascular pathologies. Yet, data regarding potential renoprotection by ivabradine in hypertension are sparse. Thirty-six adult male Wistar rats were divided into non-diseased controls and rats with NG-nitro-L-arginine methyl ester (L-NAME)-induced hypertension to assess ivabradine's site-specific effect on kidney fibrosis. After 4 weeks of treatment, L-NAME increased the average systolic blood pressure (SBP) (by 27%), decreased glomerular density (by 28%) and increased glomerular tuft area (by 44%). Moreover, L-NAME induced glomerular, tubulointerstitial, and vascular/perivascular fibrosis by enhancing type I collagen volume (16-, 19- and 25-fold, respectively). L-NAME also increased the glomerular type IV collagen volume and the tubular injury score (3- and 8-fold, respectively). Ivabradine decreased average SBP and HR (by 8 and 12%, respectively), increased glomerular density (by 57%) and reduced glomerular tuft area (by 30%). Importantly, ivabradine decreased type I collagen volume at all three of the investigated sites (by 33, 38, and 72%, respectively) and enhanced vascular/perivascular type III collagen volume (by 67%). Furthermore, ivabradine decreased the glomerular type IV collagen volume and the tubular injury score (by 63 and 34%, respectively). We conclude that ivabradine attenuated the alterations of glomerular density and tuft area and modified renal fibrosis in a site-specific manner in L-NAME-hypertension. It is suggested that ivabradine may be renoprotective in hypertensive kidney disease.
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Affiliation(s)
- Peter Stanko
- Institute of Pathophysiology, Faculty of Medicine, Comenius University, Bratislava, Slovakia
| | - Tomas Baka
- Institute of Pathophysiology, Faculty of Medicine, Comenius University, Bratislava, Slovakia
| | - Kristina Repova
- Institute of Pathophysiology, Faculty of Medicine, Comenius University, Bratislava, Slovakia
| | - Silvia Aziriova
- Institute of Pathophysiology, Faculty of Medicine, Comenius University, Bratislava, Slovakia
| | - Kristina Krajcirovicova
- Institute of Pathophysiology, Faculty of Medicine, Comenius University, Bratislava, Slovakia
| | - Andrej Barta
- Institute of Normal and Pathological Physiology, Centre of Experimental Medicine, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Pavol Janega
- Institute of Normal and Pathological Physiology, Centre of Experimental Medicine, Slovak Academy of Sciences, Bratislava, Slovakia.,Institute of Pathological Anatomy, Faculty of Medicine, Comenius University, Bratislava, Slovakia
| | - Michaela Adamcova
- Department of Physiology, School of Medicine, Charles University, Prague, Czechia
| | - Ludovit Paulis
- Institute of Pathophysiology, Faculty of Medicine, Comenius University, Bratislava, Slovakia.,Institute of Normal and Pathological Physiology, Centre of Experimental Medicine, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Fedor Simko
- Institute of Pathophysiology, Faculty of Medicine, Comenius University, Bratislava, Slovakia.,3rd Department of Internal Medicine, Faculty of Medicine, Comenius University, Bratislava, Slovakia.,Institute of Experimental Endocrinology, Biomedical Research Center, Slovak Academy of Sciences, Bratislava, Slovakia
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Harsany J, Haring J, Hoferica M, Mako M, Janega P, Krastev G, Klepanec A. Aspiration thrombectomy as the first-line treatment of M2 occlusions. Interv Neuroradiol 2020; 26:383-388. [PMID: 32397859 DOI: 10.1177/1591019920925678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
PURPOSE The aim of the present study was (i) to evaluate the safety and efficacy of aspiration thrombectomy in patients with M2 occlusions and (ii) to compare outcome of treatment of occlusion of different M2 segments. MATERIALS AND METHODS Between March 2016 and June 2019, 82 patients with acute ischemic stroke and isolated M2 occlusions were treated in cerebrovascular stroke center with aspiration thrombectomy as the first-line treatment. Functional outcomes of patients with different types of M2 occlusions were statistically compared. Multivariable logistic regression analysis was performed to determine the factors associated with good clinical outcome. RESULTS The mean age was 71.9 ± 13.4 years, 47.6% were men. Aspiration thrombectomy alone was utilized in 72.5% of patients, with 27.5% of patients being treated with a combination of aspiration thrombectomy and stent retriever. At the three-month follow-up, there was no statistically significant difference in functional outcome between different types of M2 occlusions (p = 0.662), however in the underpowered analysis because of the small sample size of patients, with good clinical outcome mRS 0-2 in 50% of all treated patients. Symptomatic intracranial hemorrhage was found in 6.1% of patients. Lower age (OR 0.932, 95% CI 0.878-0.988) and lower NIHSS score upon admission (OR 0.893, 95% CI 0.805-0.991) were independent predictors of good clinical outcome. CONCLUSION Aspiration thrombectomy appeared to be a safe and effective first-line treatment option for patients with M2 occlusion, being the first-line option for almost three-quarters of patients.
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Affiliation(s)
- Jan Harsany
- Department of Radiology, Faculty Hospital Trnava, Trnava, Slovakia
| | - Jozef Haring
- Department of Neurology, Faculty Hospital Trnava, Trnava, Slovakia
| | - Matus Hoferica
- Department of Radiology, Faculty Hospital Trnava, Trnava, Slovakia
| | - Miroslav Mako
- Department of Neurology, Faculty Hospital Trnava, Trnava, Slovakia
| | - Pavol Janega
- Faculty of Medicine, Comenius University in Bratislava, Bratislava, Slovakia
| | - Georgi Krastev
- Department of Neurology, Faculty Hospital Trnava, Trnava, Slovakia
| | - Andrej Klepanec
- Department of Radiology, Faculty Hospital Trnava, Trnava, Slovakia
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Klepanec A, Salat D, Harsany J, Hoferica M, Krastev G, Haring J, Mako M, Janega P, Janosikova L, Lehotska V. Neurointerventionalist and Patient Radiation Doses in Endovascular Treatment of Acute Ischemic Stroke. Cardiovasc Intervent Radiol 2020; 43:604-612. [PMID: 31974745 DOI: 10.1007/s00270-020-02412-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Accepted: 01/08/2020] [Indexed: 11/30/2022]
Abstract
PURPOSE To evaluate the patient and the neurointerventionalist radiation dose levels during endovascular treatment of acute ischemic stroke, and to analyze factors affecting doses. MATERIALS AND METHODS From October 2017 to January 2019, we prospectively collected patient radiation data and neurointerventionalist data from real-time dosimetry from all consecutive thrombectomies. Multivariate analysis was performed to analyze patient total dose area product (DAP) and neurointerventionalist dose variability in terms of clinical characteristics and the technical parameters of thrombectomies. Local dose reference levels (RL) were derived as the 75th percentile of the patient dose distributions. RESULTS A total of 179 patients were treated during the study period and included in this study. Local dose RL for thrombectomy was derived for total DAP to 34 Gy cm2, cumulative air kerma of 242 mGy and fluoroscopy time of 12 min. The mean neurointerventionalist dose for thrombectomy was 7.7 ± 7.4 µSv. Height (P = 0.018), weight (P = 0.004), body mass index (P = 0.015), puncture to recanalisation (P < 0.001), fluoro time (P < 0.001), number of passes (P < 0.001), thrombolysis in cerebral infarction 2b/3 recanalisation (P = 0.034) and aspiration thrombectomy (P < 0.001) were independent factors affecting patient total DAP, whereas baseline National Institutes of Health Stroke Scale (P = 0.043), puncture to recanalisation (P = 0.003), fluoroscopy time (P = 0.009) and number of passes (P = 0.009) were factors affecting the neurointerventionalist dose. CONCLUSION New reference patient doses lower than those in previously published studies were defined. However, the operator's doses were higher than those in the only available study reporting on operator's dose during cerebral interventions.
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Affiliation(s)
- Andrej Klepanec
- University Hospital Trnava, A. Zarnova 11, 917 75, Trnava, Slovakia.,University of Ss. Cyril and Methodius in Trnava, Namestie J. Herdu 2, 917 01, Trnava, Slovakia
| | - Dusan Salat
- University of Ss. Cyril and Methodius in Trnava, Namestie J. Herdu 2, 917 01, Trnava, Slovakia
| | - Jan Harsany
- University Hospital Trnava, A. Zarnova 11, 917 75, Trnava, Slovakia
| | - Matus Hoferica
- University Hospital Trnava, A. Zarnova 11, 917 75, Trnava, Slovakia
| | - Georgi Krastev
- University Hospital Trnava, A. Zarnova 11, 917 75, Trnava, Slovakia
| | - Jozef Haring
- University Hospital Trnava, A. Zarnova 11, 917 75, Trnava, Slovakia
| | - Miroslav Mako
- University Hospital Trnava, A. Zarnova 11, 917 75, Trnava, Slovakia
| | - Pavol Janega
- Faculty of Medicine, Comenius University in Bratislava, Špitálska 24, 813 72, Bratislava, Slovakia
| | - Lenka Janosikova
- University of Ss. Cyril and Methodius in Trnava, Namestie J. Herdu 2, 917 01, Trnava, Slovakia
| | - Viera Lehotska
- Faculty of Medicine, Comenius University in Bratislava, Heydukova 10, 812 50, Bratislava, Slovakia.
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21
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Pazderová N, Urbán V, Makovník M, Macák D, Janega P, Chovanec M, Rejleková K, Mardiak J, Mego M. Complete Response to Chemotherapy in Metastatic Pancreatic Carcinoma Associated with Double Heterozygous Germline Mutation in BRCA2 and CHEK2 Genes - a Case Report. Klin Onkol 2020; 33:220-225. [PMID: 32683879 DOI: 10.14735/amko2020220] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
BACKGROUND Metastatic pancreatic carcinoma is an aggressive disease with adverse prognosis. Despite slight advances in chemotherapy, complete remission of the disease is extremely rare. CASE In this article we present a case of a patient with initially metastatic pancreatic adenocarcinoma, associated with double heterozygous germline mutation in BRCA2 and CHEK2 genes, with the description of clinical, radiological and histomorphological characteristics of the disease as well as the dia-gnostic and therapeutic procedure. RESULTS The patient with initially metastatic pancreatic adenocarcinoma with multiple liver involvement achieved complete remission following first-line FOLFIRINOX chemotherapy. The treatment lasted for 12 months but due to increased neurotoxicity since the 9th cycle, oxaliplatin was excluded from the regimen. Given the family history of several malignancies (prostate cancer, seminoma), genetic testing was performed, which confirmed heterozygous germline mutations in BRCA2 and CHEK2 genes. Since the treatment has been completed, the patient remains in complete remission at 30 months. CONCLUSION Given the low incidence of complete remissions in patients with metastatic pancreatic cancer, the further therapeutic approach is not clearly established, an individual treatment is important. Universal genetic testing is recommended in patients with pancreatic cancer as it may affect the treatment strategy.
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Krivošíková L, Janega P, Babala J, Babál P. Pacinian collagenoma: A distinct form of sclerotic fibroma. J Cutan Pathol 2019; 47:291-294. [PMID: 31606915 DOI: 10.1111/cup.13595] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 10/03/2019] [Accepted: 10/07/2019] [Indexed: 11/29/2022]
Abstract
Sclerotic fibroma (storiform collagenoma) is a rare benign skin tumor. A solitary tumor, as well as multifocal lesions, are found either sporadically, or associated with Cowden syndrome. The tumor usually presents as clinically asymptomatic, slowly growing papule or nodule on the skin of the head, neck, and upper extremities. Microscopically the lesion is sharply demarcated, composed of hyalinized bands of collagen with low cellularity and a distinctive irregularly whorled or storiform pattern. We describe a case of a unique variant of this tumor in the scalp of a 33-year-old male. The tumor was microscopically composed of concentrically arranged collagen bundles with prevailing type III collagen, which resembled an enlarged Vater-Pacini corpuscle, with low density of CD34-positive and glucose transporter 1-negative spindle shaped cells. The specific microscopic appearance is suggestive of the term "Pacinian collagenoma" for this unique benign tumor.
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Affiliation(s)
- Lucia Krivošíková
- Institute of Pathological Anatomy, Comenius University in Bratislava Faculty of Medicine, Bratislava, Slovakia
| | - Pavol Janega
- Institute of Pathological Anatomy, Comenius University in Bratislava Faculty of Medicine, Bratislava, Slovakia.,Institute of Normal and Pathological Physiology, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Jozef Babala
- Department of Pediatric Surgery, Comenius University in Bratislava Faculty of Medicine, Bratislava, Slovakia
| | - Pavel Babál
- Institute of Pathological Anatomy, Comenius University in Bratislava Faculty of Medicine, Bratislava, Slovakia.,Medirex Group Academy n.o., Bratislava, Slovakia
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Kaločayová B, Kovačičová I, Radošinská J, Tóthová Ľ, Jagmaševič‐Mézešová L, Fülöp M, Slezák J, Babál P, Janega P, Vrbjar N. Alteration of renal Na,K-ATPase in rats following the mediastinal γ-irradiation. Physiol Rep 2019; 7:e13969. [PMID: 30746862 PMCID: PMC6370683 DOI: 10.14814/phy2.13969] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Revised: 11/14/2018] [Accepted: 11/17/2018] [Indexed: 11/30/2022] Open
Abstract
Na,K-ATPase represents the key enzyme that maintains the homeostasis of sodium and potassium ions in the cells. It was documented that in directly irradiated organs the activity of this enzyme is decreased. The aim of present study was to clarify the remote effect of irradiation in mediastinal area on the activity of the Na,K-ATPase in kidneys in rats. Ionizing radiation in single dose 25 Gy resulted in consequent decrease of the body weight gain as well as the size of kidneys in Wistar rats. In addition, radiation induced alterations in the oxidative status of blood plasma. Irradiation also decreased the activity of renal Na,K-ATPase. Measurements of enzyme kinetics that were dependent on the concentration of energy substrate ATP or cofactor Na+ indicated that the lowered enzyme activity is probably a consequence of decreased number of active molecules of the enzyme, as suggested by lowered Vmax values. Immunoblot analysis confirmed the lowered expression of the catalytic alpha subunit together with decreased content of the glycosylated form of beta subunit in the renal tissue of irradiated rats. The ability of the enzyme to bind the substrate ATP, as well as Na+ was not affected, as shown by unaltered values of Km and KNa . Irradiation of the body in the mediastinal area despite protection of kidneys by lead plates during application of X-ray was followed by significant decline of activity of the renal Na,K-ATPase, what may result in deteriorated homeostasis in the organism.
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Affiliation(s)
- Barbora Kaločayová
- Centre of Experimental MedicineInstitute for Heart ResearchSlovak Academy of SciencesBratislavaSlovak Republic
| | - Ivona Kovačičová
- Centre of Experimental MedicineInstitute for Heart ResearchSlovak Academy of SciencesBratislavaSlovak Republic
| | - Jana Radošinská
- Centre of Experimental MedicineInstitute for Heart ResearchSlovak Academy of SciencesBratislavaSlovak Republic
- Institute of PhysiologyFaculty of MedicineComenius University in BratislavaBratislavaSlovak Republic
| | - Ľubomíra Tóthová
- Institute of Molecular BiomedicineFaculty of MedicineComenius UniversityBratislavaSlovak Republic
| | - Lucia Jagmaševič‐Mézešová
- Centre of Experimental MedicineInstitute for Heart ResearchSlovak Academy of SciencesBratislavaSlovak Republic
| | - Marko Fülöp
- Slovak Medical UniversityBratislavaSlovak Republic
| | - Ján Slezák
- Centre of Experimental MedicineInstitute for Heart ResearchSlovak Academy of SciencesBratislavaSlovak Republic
| | - Pavel Babál
- Institute of PathologyFaculty of MedicineComenius University in BratislavaBratislavaSlovak Republic
| | - Pavol Janega
- Institute of PathologyFaculty of MedicineComenius University in BratislavaBratislavaSlovak Republic
| | - Norbert Vrbjar
- Centre of Experimental MedicineInstitute for Heart ResearchSlovak Academy of SciencesBratislavaSlovak Republic
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Uličná O, Vančová O, Kucharská J, Janega P, Waczulíková I. Rooibos tea (Aspalathus linearis) ameliorates the CCl4-induced injury to mitochondrial respiratory function and energy production in rat liver. Gen Physiol Biophys 2019; 38:15-25. [PMID: 30657457 DOI: 10.4149/gpb_2018037] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Accepted: 09/30/2018] [Indexed: 11/08/2022]
Abstract
The rooibos tea (RT) is a source of valuable dietary dihydrochalcones aspalathin, and nothofagin and other polyphenols. Many in vitro and in vivo studies have shown that RT flavonoids have strong antioxidant effect and significantly reduce oxidative stress. We investigated the antioxidant activity and protective effect of an aqueous extract of RT on the liver mitochondria oxidative phosphorylation in rats with carbon tetrachloride-induced (CCl4-induced) liver damage. Mitochondrial respiration and ATP production was determined amperometrically using a Clark-type oxygen electrode. We found significantly decreased parameters of oxidative phosphorylation in the group having received CCl4 for 10 weeks. Simultaneous administration of RT increased oxygen uptake stimulated with ADP, and the rate of ATP generation in the mitochondria of rats, both having been impaired in rats treated with CCl4 only. Treatment with RT significantly decreased CCl4-induced elevated enzyme levels, improved capacity of the respiratory chain and energy production, presumably due to its potent and direct antioxidant activity, including inhibition of mitochondrial lipid peroxidation. Improved histological features support the view of antioxidant and membrane-stabilizing activity of RT. This fact may play a significant role in the protection of the liver from injury caused by known toxins, and from subsequent development of steatosis and fibrosis..
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Affiliation(s)
- Oľga Uličná
- Pharmacobiochemical Laboratory of 3rd Department of Internal Medicine, Faculty of Medicine, Comenius University, Bratislava, Slovakia.
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25
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Milcheva R, Janega P, Celec P, Petkova S, Hurniková Z, Izrael-Vlková B, Todorova K, Babál P. Accumulation of α-2,6-sialyoglycoproteins in the Muscle Sarcoplasm Due to Trichinella Sp. Invasion. Open Life Sci 2019; 14:470-481. [PMID: 33817183 PMCID: PMC7874827 DOI: 10.1515/biol-2019-0053] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Accepted: 07/30/2019] [Indexed: 01/02/2023] Open
Abstract
The sialylation of the glycoproteins in skeletal muscle tissue is not well investigated, even though the essential role of the sialic acids for the proper muscular function has been proven by many researchers. The invasion of the parasitic nematode Trichinella spiralis in the muscles with subsequent formation of Nurse cell-parasite complex initiates increased accumulation of sialylated glycoproteins within the affected area of the muscle fiber. The aim of this study is to describe some details of the α-2,6-sialylation in invaded muscle cells. Asynchronous invasion with infectious T. spiralis larvae was experimentally induced in mice. The areas of the occupied sarcoplasm were reactive towards α-2,6-sialic acid specific Sambucus nigra agglutinin during the whole process of transformation to a Nurse cell.The cytoplasm of the developing Nurse cell reacted with Helix pomatia agglutinin, Arachis hypogea agglutinin and Vicia villosa lectin-B4 after neuraminidase pretreatment.Up-regulation of the enzyme ST6GalNAc1 and down-regulation of the enzyme ST6GalNAc3 were detected throughout the course of this study. The results from our study assumed accumulation of sialyl-Tn-Ag, 6`-sialyl lactosamine, SiA-α-2,6-Gal-β-1,3-GalNAc-α-Ser/Thr and Gal-β-1,3-GalNAc(SiA-α-2,6-)-α-1-Ser/Thr oligosaccharide structures into the occupied sarcoplasm. Further investigations in this domain will develop the understanding about the amazing adaptive capabilities of skeletal muscle tissue.
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Affiliation(s)
- Rositsa Milcheva
- Department of Pathology, IEMPAM, Bulgarian Academy of Sciences, ‘’Acad. G. Bonchev’’ Str. 25, 1113, Sofia, Bulgaria
- Institute of Experimental Morphology, Pathology and Anthropology with Museum (IEMPAM), Bulgarian Academy of Sciences, “Acad. G. Bonchev” Str. 25, 1113Sofia, Bulgaria
| | - Pavol Janega
- Department of Pathology, Faculty of Medicine, Comenius University in Bratislava, Sasinkova 4, 81372Bratislava, Slovakia
| | - Peter Celec
- Department of Molecular Biomedicine, Faculty of Medicine, Comenius University in Bratislava, Sasinkova 4, 81372Bratislava, Slovakia
| | - Svetlozara Petkova
- Institute of Experimental Morphology, Pathology and Anthropology with Museum (IEMPAM), Bulgarian Academy of Sciences, “Acad. G. Bonchev” Str. 25, 1113Sofia, Bulgaria
| | - Zuzana Hurniková
- Institute of Parasitology, Slovak Academy of Sciences, Hlinkova 3, 040 01Košice, Slovak Republic
| | - Barbora Izrael-Vlková
- Department of Molecular Biomedicine, Faculty of Medicine, Comenius University in Bratislava, Sasinkova 4, 81372Bratislava, Slovakia
| | - Katerina Todorova
- Institute of Experimental Morphology, Pathology and Anthropology with Museum (IEMPAM), Bulgarian Academy of Sciences, “Acad. G. Bonchev” Str. 25, 1113Sofia, Bulgaria
| | - Pavel Babál
- Department of Pathology, Faculty of Medicine, Comenius University in Bratislava, Sasinkova 4, 81372Bratislava, Slovakia
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Huľová S, Syčová-Milá Z, Macák D, Janega P, Chovanec M, Mardiak J, Mego M. Diagnostic Challenges and Extraordinary Treatment Response in Rare Malignant PEComa Tumor of the Kidney. Klin Onkol 2018; 31:448-452. [DOI: 10.14735/amko2018448] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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27
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Gasparova Z, Janega P, Weismann P, El Falougy H, Tyukos Kaprinay B, Liptak B, Michalikova D, Sotnikova R. Effect of metabolic syndrome on neural plasticity and morphology of the hippocampus: correlations of neurological deficits with physiological status of the rat. Gen Physiol Biophys 2018; 37:619-632. [PMID: 30338761 DOI: 10.4149/gpb_2018016] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Accepted: 05/21/2018] [Indexed: 11/08/2022]
Abstract
Fat-rich diet (FRD) triggers health complications like hypertension, dyslipidemia, hyperglycemia, insulin resistance and non-alcoholic fatty liver disease, known as the risk factors of metabolic syndrome (MetS), which may result in neurological deficits. The impact of MetS on neuronal functions and brain morphology are poorly understood. We induced MetS-like conditions by exposing hypertriacylglycerolemic (HTG) rats to FRD for eight weeks with the aim to study possible neurological dysfunctions. HTG-FRD rats were compared to HTG rats and Wistar rats on standard diet. The physiological status of the animals was monitored by body, liver and kidney weight. Morphology of the liver, vessel wall and hippocampus were investigated. Basal neurotransmission and synaptic plasticity were measured in the hippocampus ex-vivo. A marked increase of liver weight with marks of steatosis was found in the HTG-FRD group. FRD induced an increase of aortic intima-media thickness. Extracellular recording revealed FRD-induced impairment of long-term potentiation (LTP) at Cornu Ammonis (CA)3-CA1 synapse, contrary to increased presynaptic fiber volley (pV). Reduced thickness of pyramidal cell layer at the CA1 area was found morphometrically. LTP was directly associated with kidney weight and inversely associated with liver weight, pV directly correlated with liver weight, liver/body wt ratio and aortic intima-media thickness. Our results suggest correlations between altered physiological status due to MetS-like conditions and neurological deficits, which may be related with consecutive development of so-called metabolic cognitive syndrome.
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Affiliation(s)
- Zdenka Gasparova
- Institute of Experimental Pharmacology and Toxicology, Centre of Experimental Medicine, Slovak Academy of Sciences, Bratislava, Slovakia.
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Barta A, Janega P, Babál P, Murár E, Cebová M, Pechanova O. THE EFFECT OF CURCUMIN ON LIVER FIBROSIS IN THE RAT MODEL OF MICROSURGICAL CHOLESTASIS. Pathophysiology 2018. [DOI: 10.1016/j.pathophys.2018.07.156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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29
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Otrubová O, Turecký L, Uličná O, Janega P, Luha J, Muchová J. Therapeutic effects of N-acetyl-L-cysteine on liver damage induced by long-term CCl4 administration. Gen Physiol Biophys 2018; 37:23-31. [DOI: 10.4149/gpb_2017016] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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30
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Kašperová B, Jurišová S, Macúch J, Bumberová M, Janega P, Dolinský J, Mego M. Undifferentiated Carcinoma of the Pancreas - a Case Report. Klin Onkol 2018; 31:453-456. [PMID: 31035768 DOI: 10.14735/amko2018453] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND Undifferentiated carcinoma of pancreas (pancreatic cancer - PC) is a rare subtype of malignant PC. It was thought to be a sarcoma of the pancreas due to its typical morphological pattern. There are three histomorphological variants: anaplastic, sarcomatoid, and carcinosarcoma. There is also a separate category: undifferentiated pancreatic carcinoma with osteoclast-like giant cells. In contrast to ductal adenocarcinoma of the pancreas, undifferentiated carcinoma of pancreas is characterized by more aggressive behavior, other predilection localization of tumor and different predilection for localization of tumor and metastasis, a larger primary tumor, and different symptomatology at the time of diagnosis. CASE We present the case of a patient who was diagnosed with undifferentiated PC and was treated at the National Cancer Institute in Bratislava. We provide information about the clinical, radiological, and histomorphological characteristics of the disease, along with the diagnostic and therapeutic approach and a brief review of the literature. RESULTS The patient was diagnosed with inoperable locally advanced disease and was treated with first line chemotherapy comprising gemcitabine and cisplatin, followed by second line treatment with FOLFIRINOX. No response was achieved; on the contrary, we observed progression of the disease and deterioration in the patients condition. Overall survival was 4.5 months from the time of diagnosis. CONCLUSION The only appropriate therapeutic approach to this highly malignant disease is most likely “en-bloc” resection, which is possible only at the early stage of the disease. At present, no curative chemotherapy or radiotherapy regimen exists. The dominant features of undifferentiated PC described in the literature are aggressive behavior, an unfavorable prognosis, and chemo-refractoriness. Key words: pancreatic cancer - prognosis - chemotherapy The authors declare they have no potential conflicts of interest concerning drugs, products, or services used in the study. The Editorial Board declares that the manuscript met the ICMJE recommendation for biomedical papers. Submitted: 4. 6. 2018 Accepted: 25. 10. 2018.
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31
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Cierna Z, Janega P, Grochal F, Ferianec V, Braxatorisova T, Strieskova L, Malova J, Jungova P, Szemes T. The First Reported Case of Meckel-Gruber Syndrome Associated With Abnormal Karyotype Mosaic Trisomy 17. Pediatr Dev Pathol 2017; 20:449-454. [PMID: 28812468 DOI: 10.1177/1093526616689184] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Meckel-Gruber syndrome (MKS) is a rare lethal autosomal recessive disorder with typical anomalies including encephalocele, multicystic renal dysplasia, congenital liver fibrosis, and polydactyly. MKS is caused by mutations of genes localized on different chromosomes. Karyotypes of published Meckel-Gruber syndrome cases are without any aberrations. We present a male fetus with meningoencephalocele, multicystic renal dysplasia, congenital liver fibrosis, and other anomalies. Standard cytogenetic examination of cultured fetal skin and muscle fibroblasts showed mosaic trisomy 17. Homozygous deletion in CC2D2A gene was found by Sanger sequencing. This is to our knowledge the first case of genetically confirmed Meckel-Gruber syndrome with incidental cofinding of mosaic trisomy 17. Abnormal karyotype does not exclude diagnosis of MKS with risk of recurrence 25% in next pregnancy. In the case of anomalies typical for Meckel-Gruber syndrome, genetic analysis is indicated.
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Affiliation(s)
- Zuzana Cierna
- 1 Department of Pathology, Faculty of Medicine, Comenius University, Bratislava, Slovak Republic.,2 Medirex group academy, n.o., Bratislava, Slovak Republic
| | - Pavol Janega
- 1 Department of Pathology, Faculty of Medicine, Comenius University, Bratislava, Slovak Republic.,2 Medirex group academy, n.o., Bratislava, Slovak Republic.,3 Institute of Normal and Pathological Physiology, Slovak Academy of Sciences, Bratislava, Slovak Republic
| | - Frantisek Grochal
- 4 Femicare, s.r.o., Center of prenatal ultrasonographic diagnostics, Martin, Slovak republic.,5 UVN SNP Ruzomberok, Gynecological and Obstetrical Department, Faculty of Health Care, Catholic University in Ruzomberok, Ruzomberok, Slovak Republic
| | - Vladimir Ferianec
- 6 2nd Department of Gynaecology and Obstetrics, Faculty of Medicine, Comenius University, Bratislava, Slovak Republic
| | - Tatiana Braxatorisova
- 7 Institute of Medical biology, Genetics and Clinical Genetics, Faculty of Medicine, Comenius University, Bratislava, Slovak Republic
| | - Lucia Strieskova
- 8 Geneton, s.r.o., Bratislava, Slovak Republic.,9 Faculty of Natural Sciences, Comenius University, Bratislava, Slovak Republic
| | - Jana Malova
- 7 Institute of Medical biology, Genetics and Clinical Genetics, Faculty of Medicine, Comenius University, Bratislava, Slovak Republic
| | - Petra Jungova
- 7 Institute of Medical biology, Genetics and Clinical Genetics, Faculty of Medicine, Comenius University, Bratislava, Slovak Republic
| | - Tomas Szemes
- 8 Geneton, s.r.o., Bratislava, Slovak Republic.,9 Faculty of Natural Sciences, Comenius University, Bratislava, Slovak Republic.,10 Comenius University Science Park, Comenius University, Bratislava, Slovak Republic
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Bystricky B, Cierna Z, Sieberova G, Janega P, Karaba M, Minarik G, Benca J, Sedlackova T, Jurisova S, Gronesova P, Pindak D, Macuch J, Mardiak J, Mego M. Relationship Between Circulating Tumor Cells and Annexin A2 in Early Breast Cancer Patients. Anticancer Res 2017; 37:2727-2734. [PMID: 28476852 DOI: 10.21873/anticanres.11624] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Revised: 04/11/2017] [Accepted: 04/12/2017] [Indexed: 11/10/2022]
Abstract
BACKGROUND/AIM Annexin A2 (ANXA2) is a phospholipid-binding protein involved in fibrinolysis, cell proliferation, migration and metastatic dissemination. Circulating tumor cells (CTCs) are cells responsible for tumor dissemination and have a prognostic value in several types of cancers including breast cancer. Previously, we found correlation between CTCs and activation of coagulation. This study aimed to correlate CTCs with ANXA2 expression on CTCs, tumor cells and tumor associated stroma in primary breast cancer (PBC) patients. PATIENTS AND METHODS This prospective study included 101 PBC patients treated by primary surgery. CTCs were detected by quantitative real-time polymerase chain reaction (qRT-PCR) assay for the expression of epithelial (CK19) or epithelial-mesenchymal transition (EMT) genes [TWIST1, SNAI1, SNAI2, zinc finger E-box-binding homeobox 1 (ZEB1)]. ANXA2 expression on CTCs was detected by qRT-PCR, while expression of ANXA2 in tumor specimen was evaluated by immunohistochemistry and expressed by a weighted histoscore, evaluating both the percentage of positive cells and the intensity of membrane and cytoplasmic staining. Results of hormone receptors, HER2 status, B-cell lymphoma 2 (bcl-2) protein expression and protein p53 were reported as either positive or negative on histopathology report without further quantification. RESULTS CTCs were detected in 24.8% patients. Patients with epithelial CTCs had a significantly higher ANXA2 expression on CTCs than those of patients without CTCs (p=0.01). There was no association between CTCs and ANXA2 protein expression in tumor cells. However, patients, whom CTCs with EMT phenotype were detected in, had higher ANXA2 expression in tumor stroma when compared to those with absent EMT CTCs (p=0.04). Hormone-negative tumors had significantly higher ANXA2 expression in tumor cells compared to hormone-positive tumors (p=0.03). Similarly, tumors without bcl-2 protein expression had higher tumor levels of ANXA2 compared to tumor cells that were bcl-2 positive (p=0.05). CONCLUSION ANXA2 stromal expression might play a key role in aggressive tumor phenotype associated with increased EMT CTCs release, however, other factors beyond ANXA2 are responsible for coagulation activation mediated by CTCs in breast cancer patients.
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Affiliation(s)
- Branislav Bystricky
- 2nd Department of Medical Oncology, Faculty of Medicine, Comenius University, Bratislava, Slovakia.,Oncology Department Faculty Hospital Trencin, Trencin, Slovakia
| | - Zuzana Cierna
- Department of Pathology, Faculty of Medicine, Comenius University, Bratislava, Slovakia
| | | | - Pavol Janega
- Department of Pathology, Faculty of Medicine, Comenius University, Bratislava, Slovakia.,Institute of Normal and Pathological Physiology, Faculty of Medicine, Comenius University, Bratislava, Slovakia
| | - Marian Karaba
- National Cancer Institute, Bratislava, Slovakia.,Department of Surgery, Slovak Medical University, Bratislava, Slovakia
| | - Gabriel Minarik
- Institute of Molecular Biomedicine, Faculty of Medicine, Comenius University, Bratislava, Slovakia
| | - Juraj Benca
- National Cancer Institute, Bratislava, Slovakia.,Department of Surgery, Slovak Medical University, Bratislava, Slovakia.,Department of Medicine, St. Elizabeth University, Bratislava, Slovakia
| | - Tatiana Sedlackova
- Institute of Molecular Biomedicine, Faculty of Medicine, Comenius University, Bratislava, Slovakia
| | - Silvia Jurisova
- 2nd Department of Medical Oncology, Faculty of Medicine, Comenius University, Bratislava, Slovakia.,National Cancer Institute, Bratislava, Slovakia
| | - Paulina Gronesova
- Cancer Research Institute BMC, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Daniel Pindak
- National Cancer Institute, Bratislava, Slovakia.,Department of Surgery, Slovak Medical University, Bratislava, Slovakia
| | - Jan Macuch
- National Cancer Institute, Bratislava, Slovakia
| | - Jozef Mardiak
- 2nd Department of Medical Oncology, Faculty of Medicine, Comenius University, Bratislava, Slovakia.,National Cancer Institute, Bratislava, Slovakia
| | - Michal Mego
- 2nd Department of Medical Oncology, Faculty of Medicine, Comenius University, Bratislava, Slovakia .,National Cancer Institute, Bratislava, Slovakia.,Translational Research Unit, Bratislava, Slovakia
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Janegova A, Janega P, Rychly B, Kuracinova K, Babal P. The role of Epstein-Barr virus infection in the development of autoimmune thyroid diseases. Endokrynol Pol 2017; 66:132-6. [PMID: 25931043 DOI: 10.5603/ep.2015.0020] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2014] [Revised: 11/03/2014] [Accepted: 11/09/2014] [Indexed: 11/25/2022]
Abstract
INTRODUCTION Autoimmune thyroid diseases, including Graves' and Hashimoto's thyroiditis, are the most frequent autoimmune disorders. Viral infection, including Epstein-Barr virus (EBV), is one of the most frequently considered environmental factors involved in autoimmunity. Its role in the development of AITD has not been confirmed so far. MATERIAL AND METHODS Surgical specimens of Graves' and Hashimoto's diseases and nodular goitres were included in the study. The expression of EBV latent membrane protein 1 (LMP1) was analysed by immunohistochemistry, with the parallel detection of virus-encoded small nuclear non-polyadenylated RNAs (EBER) by in situ hybridisation. RESULTS In none of the Graves' disease specimens but in 34.5% of Hashimoto's thyroiditis cases the cytoplasmic expression of LMP1 was detected in follicular epithelial cells and in infiltrating lymphocytes. EBER nuclear expression was detected in 80.7% of Hashimoto's thyroiditis cases and 62.5% of Graves' disease cases, with positive correlation between LMP1 and EBER positivity in all Hashimoto's thyroiditis LMP1-positive cases. CONCLUSIONS We assume that high prevalence of EBV infection in cases of Hashimoto's and Graves' diseases imply a potential aetiological role of EBV in autoimmune thyroiditis. The initiation of autoimmune thyroiditis could start with EBV latency type III infection of follicular epithelium characterised by LMP1 expression involving the production of inflammatory mediators leading to recruitment of lymphocytes. The EBV positivity of the infiltrating lymphocytes could be only the presentation of a carrier state, but in cases with EBER+/ LMP1+ lymphocytes (transforming latent infection) it could represent a negative prognostic marker pointing to a higher risk of primary thyroid lymphoma development.
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Affiliation(s)
| | - Pavol Janega
- Department of Pathology, Faculty of Medicine, Comenius University, Bratislava, Slovak Republic; Institute of Normal and Pathological Physiology, Slovak Academy of Sciences, Bratislava, Slovak Republic.
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Kubisova K, Martanovic P, Sisovsky V, Tomleinova Z, Steno A, Janega P, Rychly B, Babal P. Dominant neurologic symptomatology in intravascular large B-cell lymphoma. ACTA ACUST UNITED AC 2017; 117:308-11. [PMID: 27546361 DOI: 10.4149/bll_2016_061] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Intravascular large B-cell lymphoma (IVLBCL) is a rare variant of extranodal large B-cell lymphoma and it is characterized by selective intravascular proliferation of malignant cells. Typical features of the disease include aggressive behavior, rapid and frequently fatal course. Clinical picture is non-specific and heterogeneous, depending on the affected organ. It is not uncommon that this unique type of lymphoma is diagnosed post mortem. Herein, we report two cases of IVLBCL with neurologic symptomatology. In our clinical study patient 1 was an 80-year-old male with mixed paraparesis of lower extremities and difficulties with sphincter control. Patient 2 (56-year-old male) had vision malfunction, mental status changes and defect in phatic and motor functions. In both cases definite diagnosis was established by histological examination of necroptic material. We propose to include IVLBCL in differential diagnostic considerations in patients presenting with gradually impairing neurological status and spinal cord damage of unknown etiology (Fig. 2, Ref. 9).
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35
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Skalická K, Hrčková G, Vaská A, Baranyaiová A, Janega P, Žilinská Z, Daniš D, Kovács L. Pilot Study of the Occurrence of Somatic Mutations in Ciliary Signalling Pathways as a Contribution Factor to Autosomal Dominant Polycystic Kidney Development. Folia Biol (Praha) 2017; 63:174-181. [PMID: 29687770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Autosomal-dominant polycystic kidney disease (ADPKD) is an inherited disease that results in multiple kidney cysts, and it is a common cause of end-stage renal disease. Recent studies have shown that disease progression can be slowed by simultaneous disruption of the primary cilium and polycystins. The exact genetic mechanism of this process is still unknown. The aim of the present study was to characterize the mutation profile of ciliary signalling pathways in the renal epithelial cells of ADPKD patients. In our study, we performed an analysis of 110 genes encoding the components of Sonic Hedgehog, Hippo, Notch, Wnt and planar cell polarity signalling (PCP) by targeted next-generation sequencing. We analysed 10 formalin-fixed, paraffinembedded (FFPE) tissue samples of patients with ADPKD. We identified a unique mutation profile in each of the analysed ADPKD samples, which was characterized by the presence of pathogenic variants in eight to 11 genes involved in different signalling pathways. Despite the significant genetic heterogeneity of ADPKD, we detected five genes whose genetic variants affected most ADPKD samples. The pathogenic variants in NCOR2 and LRP2 genes were present in all analysed samples of ADPKD. In addition, eight out of 10 samples showed a pathogenic variant in the MAML2 and FAT4 genes, and six out of 10 samples in the CELSR1 gene. In our study, we identified the signalling molecules that may contribute to the cystogenesis and may represent potential targets for the development of new ADPKD treatments.
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Affiliation(s)
- K Skalická
- Laboratory of Clinical and Molecular Genetics, Department of Paediatrics, Faculty of Medicine, Comenius University and University Children's Hospital, Bratislava, Slovakia
| | - G Hrčková
- Laboratory of Clinical and Molecular Genetics, Department of Paediatrics, Faculty of Medicine, Comenius University and University Children's Hospital, Bratislava, Slovakia
| | - A Vaská
- Laboratory of Clinical and Molecular Genetics, Department of Paediatrics, Faculty of Medicine, Comenius University and University Children's Hospital, Bratislava, Slovakia
| | - A Baranyaiová
- Laboratory of Clinical and Molecular Genetics, Department of Paediatrics, Faculty of Medicine, Comenius University and University Children's Hospital, Bratislava, Slovakia
| | - P Janega
- Institute of Pathological Anatomy, Faculty of Medicine, Comenius University, Bratislava, Slovakia
| | - Z Žilinská
- Urology Clinic with the Centre for Kidney Transplantation, University Hospital Bratislava, Slovakia
| | - D Daniš
- Cytopathos laboratory, Bratislava, Slovakia
| | - L Kovács
- Laboratory of Clinical and Molecular Genetics, Department of Paediatrics, Faculty of Medicine, Comenius University and University Children's Hospital, Bratislava, Slovakia
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Janegova A, Janega P, Kovac O, Dragun J, Zakutansky A, Mihalova R, Marinova P, Babal P. Plantar subcutaneous sarcoidosis - a rare form of skin sarcoidosis: unusual plantar aponeurosis location of sarcoidosis as primary manifestation of asymptomatic systemic disease. J Cutan Pathol 2016; 43:475-7. [PMID: 26865475 DOI: 10.1111/cup.12662] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Revised: 11/02/2015] [Accepted: 12/06/2015] [Indexed: 11/28/2022]
Affiliation(s)
- Andrea Janegova
- Faculty of Medicine, Institute of Pathology, Comenius University, Bratislava, Slovakia
| | - Pavol Janega
- Faculty of Medicine, Institute of Pathology, Comenius University, Bratislava, Slovakia. .,Institute of Normal and Pathological Physiology, Slovak Academy of Science, Bratislava, Slovakia. .,Medirex Group Academy, Bratislava, Slovakia.
| | - Ondrej Kovac
- Faculty Hospital with Polyclinic, Skalica, Slovakia
| | - Juraj Dragun
- Faculty Hospital with Polyclinic, Skalica, Slovakia
| | | | | | - Petya Marinova
- Division of Pathology, Alpha Medical Patologia, Ltd, Bratislava, Slovakia
| | - Pavel Babal
- Faculty of Medicine, Institute of Pathology, Comenius University, Bratislava, Slovakia.,Medirex Group Academy, Bratislava, Slovakia.,Faculty Hospital with Polyclinic, Skalica, Slovakia
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Mego M, Cierna Z, Janega P, Karaba M, Minarik G, Benca J, Sedlácková T, Sieberova G, Gronesova P, Manasova D, Pindak D, Sufliarsky J, Danihel L, Reuben JM, Mardiak J. Relationship between circulating tumor cells and epithelial to mesenchymal transition in early breast cancer. BMC Cancer 2015; 15:533. [PMID: 26194471 PMCID: PMC4509773 DOI: 10.1186/s12885-015-1548-7] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2015] [Accepted: 07/14/2015] [Indexed: 02/17/2023] Open
Abstract
BACKGROUND Circulating tumor cells (CTCs) play a crucial role in tumor dissemination and are an independent survival predictor in breast cancer (BC) patients. Epithelial to mesenchymal transition (EMT) is involved in cancer invasion and metastasis. The aim of this study was to assess correlation between CTCs and expression of EMT transcription factors TWIST1 and SLUG in breast tumor tissue. METHODS This study included 102 early BC patients treated by primary surgery. Peripheral blood mononuclear cells (PBMC) were depleted of hematopoietic cells using RossetteSep™ negative selection kit. RNA extracted from CD45-depleted PBMC was interrogated for expression of EMT (TWIST1, SNAIL1, SLUG, FOXC2 and ZEB1) and epithelial (KRT19) gene transcripts by qRT-PCR. Expression of TWIST1 and SLUG in surgical specimens was evaluated by immunohistochemistry and quantified by multiplicative score. RESULTS CTCs were detected in 24.5 % patients. CTCs exhibiting only epithelial markers were present in 8.8 % patients, whereas CTCs with only EMT markers were observed in 12.8 % of pts and CTCs co-expressing both markers were detected in 2.9 % pts. We observed lack of correlation between CTCs and expression of TWIST1 and SLUG in breast cancer cells or cancer associated stroma. Lack of correlation was observed for epithelial CTCs as well as for CTCs with EMT. CONCLUSIONS In this translational study, we showed a lack of association between CTCs and expression of EMT-inducing transcription factors, TWIST1 and SLUG, in breast tumor tissue. Despite the fact that EMT is involved in cancer invasion and metastasis our results suggest, that expression of EMT proteins in unselected tumor tissue is not surrogate marker of CTCs with either mesenchymal or epithelial features.
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Affiliation(s)
- M Mego
- 2nd Department of Oncology, Faculty of Medicine, Comenius University and National Cancer Institute, Klenova 1, 833 10, Bratislava, Slovak Republic. .,Translational Research Unit, Bratislava, Slovakia. .,National Cancer Institute, Bratislava, Slovakia.
| | - Z Cierna
- Department of Pathology, Bratislava, Slovakia.
| | - P Janega
- Department of Pathology, Bratislava, Slovakia. .,Institute of Normal and Pathological Physiology, Bratislava, Slovakia.
| | - M Karaba
- National Cancer Institute, Bratislava, Slovakia.
| | - G Minarik
- Institute of Molecular Biomedicine, Faculty of Medicine, Comenius University, Bratislava, Slovakia.
| | - J Benca
- National Cancer Institute, Bratislava, Slovakia.
| | - T Sedlácková
- Institute of Molecular Biomedicine, Faculty of Medicine, Comenius University, Bratislava, Slovakia.
| | - G Sieberova
- National Cancer Institute, Bratislava, Slovakia.
| | - P Gronesova
- Cancer Research Institute, Slovak Academy of Sciences, Bratislava, Slovakia.
| | - D Manasova
- Translational Research Unit, Bratislava, Slovakia.
| | - D Pindak
- National Cancer Institute, Bratislava, Slovakia. .,Slovak Medical University, Bratislava, Slovakia.
| | - J Sufliarsky
- 2nd Department of Oncology, Faculty of Medicine, Comenius University and National Cancer Institute, Klenova 1, 833 10, Bratislava, Slovak Republic. .,National Cancer Institute, Bratislava, Slovakia.
| | - L Danihel
- Department of Pathology, Bratislava, Slovakia.
| | - J M Reuben
- Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
| | - J Mardiak
- 2nd Department of Oncology, Faculty of Medicine, Comenius University and National Cancer Institute, Klenova 1, 833 10, Bratislava, Slovak Republic. .,National Cancer Institute, Bratislava, Slovakia.
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Mego M, Cingelova S, Cierna Z, Cholujova D, Janega P, Karaba M, Gronesova P, Benca J, Minarik T, Labudova V, Pindak D, Sufliarsky J, Mardiak J. Correlation between CD3+ tumor infiltrating lymphocytes and plasma cytokines in primary breast cancer patients. J Clin Oncol 2015. [DOI: 10.1200/jco.2015.33.15_suppl.e22103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Michal Mego
- Second Department of Oncology, Faculty of Medicine, Comenius University in Bratislava and National Cancer Institute, Bratislava, Slovakia
| | | | - Zuzana Cierna
- Department of Pathology, Faculty of Medicine, Comenius University, Bratislava, Slovakia
| | | | - Pavol Janega
- Faculty of Medicine, Comenius University, Bratislava, Slovakia
| | | | | | - Juraj Benca
- National Cancer Institute, Bratislava, Slovakia
| | | | - Viera Labudova
- University of Economics in Bratislava, Faculty of Economic Informatics, Bratislava, Slovakia
| | | | - Jozef Sufliarsky
- 2nd Department of Oncology, Faculty of Medicine, Comenius University, National Cancer Institute, Bratislava, Slovakia
| | - Jozef Mardiak
- Second Department of Oncology, Faculty of Medicine, Comenius University in Bratislava and National Cancer Institute, Bratislava, Slovakia
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Kralova E, Doka G, Pivackova L, Srankova J, Kuracinova K, Janega P, Babal P, Klimas J, Krenek P. l-Arginine Attenuates Cardiac Dysfunction, But Further Down-Regulates α-Myosin Heavy Chain Expression in Isoproterenol-Induced Cardiomyopathy. Basic Clin Pharmacol Toxicol 2015; 117:251-60. [DOI: 10.1111/bcpt.12405] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2014] [Accepted: 03/26/2015] [Indexed: 12/15/2022]
Affiliation(s)
- Eva Kralova
- Department of Pharmacology and Toxicology; Faculty of Pharmacy; Comenius University in Bratislava; Bratislava Slovak Republic
| | - Gabriel Doka
- Department of Pharmacology and Toxicology; Faculty of Pharmacy; Comenius University in Bratislava; Bratislava Slovak Republic
| | - Lenka Pivackova
- Department of Pharmacology and Toxicology; Faculty of Pharmacy; Comenius University in Bratislava; Bratislava Slovak Republic
| | - Jasna Srankova
- Department of Pharmacology and Toxicology; Faculty of Pharmacy; Comenius University in Bratislava; Bratislava Slovak Republic
| | - Kristina Kuracinova
- Department of Pathology; Faculty of Medicine; Comenius University in Bratislava; Bratislava Slovak Republic
| | - Pavol Janega
- Department of Pathology; Faculty of Medicine; Comenius University in Bratislava; Bratislava Slovak Republic
- Slovak Academy of Sciences; Institute of Normal and Pathological Anatomy; Bratislava Slovak Republic
| | - Pavel Babal
- Department of Pathology; Faculty of Medicine; Comenius University in Bratislava; Bratislava Slovak Republic
| | - Jan Klimas
- Department of Pharmacology and Toxicology; Faculty of Pharmacy; Comenius University in Bratislava; Bratislava Slovak Republic
| | - Peter Krenek
- Department of Pharmacology and Toxicology; Faculty of Pharmacy; Comenius University in Bratislava; Bratislava Slovak Republic
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Janega P, Klimentová J, Barta A, Kovácsová M, Vranková S, Cebová M, Čierna Z, Matúsková Z, Jakovljevic V, Pechánová O. Red wine extract decreases pro-inflammatory markers, nuclear factor-κB and inducible NOS, in experimental metabolic syndrome. Food Funct 2015; 5:2202-7. [PMID: 25051230 DOI: 10.1039/c4fo00097h] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We aimed to analyse the effects of alcohol-free Alibernet red wine extract (AWE) on nitric oxide synthase (NOS) activity and pro-inflammatory markers such as nuclear factor-κB (NFκB) and inducible NOS (iNOS) protein expression in experimental metabolic syndrome. Young 6 week-old male Wistar Kyoto (WKY) and obese, spontaneously hypertensive rats (SHR/N-cp) were divided into control groups and groups treated with AWE (24.2 mg per kg per day) for 3 weeks (n = 6 in each group). Total NOS activity and endothelial NOS (eNOS), iNOS and NFκB (p65) protein expressions were determined in the heart left ventricle and aorta by Western blot and immunohistochemical analysis. All parameters investigated significantly increased in the aorta of SHR/N-cp rats. Pro-inflammatory markers such as NFκB and iNOS were increased in the left ventricle as well. AWE treatment did not affect total NOS activity and eNOS expression in the aorta; however, it was able to decrease NFκB and iNOS protein expression in both the left ventricle and aorta. In conclusion, in the cardiovascular system, Alibernet red wine extract decreased NFκB and iNOS protein expressions elevated as a consequence of developed metabolic syndrome. This effect may represent one of the protective, anti-inflammatory properties of Alibernet red wine polyphenols on cardiovascular risk factors related to metabolic syndrome.
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Affiliation(s)
- Pavol Janega
- Institute of Normal and Pathological Physiology and Centre of Excellence for Regulatory Role of Nitric Oxide in Civilization Diseases, Slovak Academy of Sciences, Bratislava, Slovak Republic.
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Mego M, Karaba M, Minarik G, Benca J, Sedlácková T, Tothova L, Vlkova B, Cierna Z, Janega P, Luha J, Gronesova P, Pindak D, Fridrichova I, Celec P, Reuben JM, Cristofanilli M, Mardiak J. Relationship between circulating tumor cells, blood coagulation, and urokinase-plasminogen-activator system in early breast cancer patients. Breast J 2015; 21:155-60. [PMID: 25623304 DOI: 10.1111/tbj.12388] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Cancer is a risk factor for venous thromboembolism (VTE) and plasma d-dimer (DD) and tissue factor (TF) are established VTE associated markers. Circulating tumor cells (CTCs) are associated with the risk of VTE in metastatic breast cancer. This study aimed to correlate CTCs, blood coagulation and the urokinase plasminogen activator (uPA) system in primary breast cancer (PBC) patients. This prospective study included 116 PBC patients treated by primary surgery. CTCs were detected by quantitative RT-PCR assay for expression of epithelial (CK19) or epithelial-mesenchymal transition (EMT) genes (TWIST1, SNAIL1, SLUG, ZEB1, FOXC2). Plasma DD, TF, uPA system proteins were detected by enzyme-linked immunosorbent assays, while expressions of uPA system in surgical specimens were evaluated by immunohistochemistry. CTCs were detected in 27.6% patients. Patients with CTCs had a significantly higher mean plasma DD (ng/mL) than those of patients without CTCs (632.4 versus 365.4, p = 0.000004). There was no association between plasma TF and CTCs. Epithelial CTCs exhibit higher expression of uPA system genes compared to EMT_CTCs. Patients with CTCs had higher plasma uPA proteins than those of patients without CTCs; there was no correlation between tissue expression of uPA system, CTCs, DD or TF levels. In multivariate analysis CTCs and patients age were independent factors associated with plasma DD. We found association between plasma DD and CTCs indicating a potential role for activation of the coagulation cascade in the early metastatic process. CTCs could be directly involved in coagulation activation or increased CTCs could be marker of aggressive disease and increased VTE risk.
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Affiliation(s)
- Michal Mego
- 2nd Department of Medical Oncology, Faculty of Medicine, Comenius University, Bratislava, Slovakia; Translational Research Unit, Faculty of Medicine, Comenius University, Bratislava, Slovakia; National Cancer Institute, Bratislava, Slovakia
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Bábíčková J, Borbélyová V, Tóthová L, Kubišová K, Janega P, Hodosy J, Celec P. The renal effects of prenatal testosterone in rats. J Urol 2015; 193:1700-8. [PMID: 25577974 DOI: 10.1016/j.juro.2014.12.093] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/30/2014] [Indexed: 12/15/2022]
Abstract
PURPOSE Previous studies have shown that prenatal testosterone affects the development of not only reproductive organs but also the brain and even glucose metabolism. Whether prenatal testosterone influences the kidney development is largely unknown. We analyzed whether testosterone modulation during prenatal development would affect renal function and the number of nephrons in adult offspring. MATERIALS AND METHODS Pregnant rats were treated with olive oil, testosterone (2 mg/kg), the androgen receptor blocker flutamide (5 mg/kg) or testosterone plus flutamide via daily intramuscular injections from gestation day 14 until delivery. Renal histology and functional parameters were assessed in male and female adult offspring. Macerated kidneys were used for nephron counting. RESULTS Prenatal testosterone administration increased proteinuria in male rats by 256%. A similar 134% effect in female rats was not statistically significant. This effect was prevented when flutamide was co-administered. In male rats prenatal testosterone increased blood urea nitrogen. In female rats flutamide increased creatinine clearance. In male rats prenatal testosterone and flutamide led to higher and lower, respectively, interstitial collagen deposition in adulthood. CONCLUSIONS Prenatal testosterone induces proteinuria in adulthood. This effect is mediated via androgen receptor. Additional effects seem to be sex specific. Further studies should focus on the timing and dosing of testosterone as well as the applicability to human development.
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Affiliation(s)
- Janka Bábíčková
- Institute of Molecular Biomedicine, Faculty of Medicine, Comenius University, Bratislava, Slovakia; Center for Molecular Medicine, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Veronika Borbélyová
- Institute of Molecular Biomedicine, Faculty of Medicine, Comenius University, Bratislava, Slovakia
| | - L'ubomíra Tóthová
- Institute of Molecular Biomedicine, Faculty of Medicine, Comenius University, Bratislava, Slovakia; Center for Molecular Medicine, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Katarína Kubišová
- Institute of Pathology, Faculty of Medicine, Comenius University, Bratislava, Slovakia
| | - Pavol Janega
- Institute of Pathology, Faculty of Medicine, Comenius University, Bratislava, Slovakia
| | - Július Hodosy
- Institute of Molecular Biomedicine, Faculty of Medicine, Comenius University, Bratislava, Slovakia; Institute of Physiology, Comenius University, Bratislava, Slovakia; Center for Molecular Medicine, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Peter Celec
- Institute of Molecular Biomedicine, Faculty of Medicine, Comenius University, Bratislava, Slovakia; Institute of Pathophysiology, Faculty of Medicine, Comenius University, Bratislava, Slovakia; Department of Molecular Biology, Faculty of Natural Sciences, Comenius University, Bratislava, Slovakia; Center for Molecular Medicine, Slovak Academy of Sciences, Bratislava, Slovakia.
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Barta A, Janega P, Babál P, Murár E, Cebová M, Pechánová O. The effect of curcumin on liver fibrosis in the rat model of microsurgical cholestasis. Food Funct 2015; 6:2187-93. [DOI: 10.1039/c5fo00176e] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
We aimed to determine the effects of curcumin on liver fibrosis and to clarify the role of nuclear factor-κB (NF-κB) and inducible nitric oxide synthase (iNOS) in a model of microsurgical cholestasis in the early stage of extrahepatic biliary atresia.
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Affiliation(s)
- Andrej Barta
- Institute of Normal and Pathological Physiology and Centre of excellence for regulatory role of nitric oxide in civilization diseases
- Slovak Academy of Sciences
- Bratislava
- Slovak Republic
| | - Pavol Janega
- Institute of Normal and Pathological Physiology and Centre of excellence for regulatory role of nitric oxide in civilization diseases
- Slovak Academy of Sciences
- Bratislava
- Slovak Republic
- Department of Pathological Anatomy
| | - Pavel Babál
- Department of Pathological Anatomy
- Faculty of Medicine
- Comenius University
- Bratislava
- Slovak Republic
| | - Erich Murár
- Pediatric Surgery Department
- Children's University Hospital
- Slovak Medical University
- Banská Bystrica
- Slovak Republic
| | - Martina Cebová
- Institute of Normal and Pathological Physiology and Centre of excellence for regulatory role of nitric oxide in civilization diseases
- Slovak Academy of Sciences
- Bratislava
- Slovak Republic
| | - Olga Pechánová
- Institute of Normal and Pathological Physiology and Centre of excellence for regulatory role of nitric oxide in civilization diseases
- Slovak Academy of Sciences
- Bratislava
- Slovak Republic
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Cierna Z, Mego M, Janega P, Karaba M, Minarik G, Benca J, Sedlácková T, Cingelova S, Gronesova P, Manasova D, Pindak D, Sufliarsky J, Danihel L, Reuben JM, Mardiak J. Matrix metalloproteinase 1 and circulating tumor cells in early breast cancer. BMC Cancer 2014; 14:472. [PMID: 24972610 PMCID: PMC4079912 DOI: 10.1186/1471-2407-14-472] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2014] [Accepted: 06/25/2014] [Indexed: 11/20/2022] Open
Abstract
Background Matrix metalloproteinases (MMPs) are involved in cancer invasion and metastasis. Circulating tumor cells (CTCs) play role in tumor dissemination and are an independent survival predictor in breast cancer (BC) patients. The aim of this study was to assess correlation between CTCs and tumor MMP1 in BC. Methods Study included 149 primary BC patients treated by surgery from March 2012 to March 2013. Peripheral blood mononuclear cells (PBMC) were depleted of hematopoietic cells using RossetteSepTM selection kit. RNA extracted from CD45-depleted PBMC was interrogated for expression of EMT (TWIST1, SNAIL1, SLUG, ZEB1) and epithelial (CK19) gene transcripts by qRT-PCR. Patient samples with higher epithelial and/or mesenchymal gene transcripts than those of healthy donors (n = 60) were considered as CTC positive. Expression of MMP1 in surgical specimens was evaluated by immunohistochemistry. Results CTCs were detected in 24.2% patients. CTCs exhibiting only epithelial markers were present in 8.7% patients, whereas CTCs with epithelial-mesenchymal transition (EMT) markers (CTC_EMT) were observed in 13.4% of patients and CTCs co-expressing both markers were detected in 2.0% patients. Patients with CTC_EMT in peripheral blood had significantly increased expression of MMP1 in tumor cells (p = 0.02) and tumor associated stroma (p = 0.05) than those of patients without CTC_EMT. In multivariate analysis, CTC_EMT and tumor grade were independently associated with MMP1 expression in cancer cells, while CTC_EMT and Ki67 were independently associated with MMP1 expression in cancer associated stroma. Conclusion Our data suggest link between MMP1 and CTCs with EMT phenotype and support role of MMPs and EMT in tumor dissemination.
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Affiliation(s)
| | - Michal Mego
- Translational Research Unit, Comenius University, Bratislava, Slovakia.
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Gasparova Z, Stara V, Janega P, Navarova J, Sedlackova N, Mach M, Ujhazy E. Pyridoindole antioxidant-induced preservation of rat hippocampal pyramidal cell number linked with reduction of oxidative stress yet without influence on cognitive deterioration in Alzheimer-like neurodegeneration. Neuro Endocrinol Lett 2014; 35:454-462. [PMID: 25433849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 05/08/2014] [Accepted: 09/10/2014] [Indexed: 06/04/2023]
Abstract
BACKGROUND The idea of antioxidant therapy attenuating Alzheimer disease (AD) neuropathology starts to be attractive. Animal models are often used in these studies. An AD-like model of trimethyltin (TMT)-induced neurodegeneration, targeting the hippocampus, involves neuronal cell death and cognitive impairment. OBJECTIVES Effect of the pyridoindole SMe1EC2 (3×50 mg/kg) and vitamin C (3×50mg/kg) was analyzed in the model of TMT-induced (8 mg/kg) neurodegeneration. METHODS The study was focused on the effect of the antioxidants tested on learning performance in the Morris water maze (MWM) on days 21-25 after TMT administration, on biochemical variables - malondyaldehyde (MDA) and lysosomal enzyme NAGA in brain cortex and blood serum, and on pyramidal cell number in the CA1 area of the hippocampus on day 31 after TMT administration in adult male Wistar rats (n=32). RESULTS Critical deterioration of learning performance was observed due to the TMT administration in the MWM. Further, apparent reduction of pyramidal cell number to 21% in the CA1 area of the hippocampus, increased MDA and NAGA activity in serum and increased NAGA activity in the cortex were determined contrary to controls. In serum, an increase of MDA level was prevented by both antioxidants tested without any effect on NAGA activity. SMe1EC2 apparently preserved pyramidal cell viability in the CA1 area. Both substances tested failed to ameliorate the detrimental effect of TMT on spatial memory. CONCLUSION The biochemical and morphometrical findings suggest that reduction of oxidative stress may play a role in AD-like neurodegeneration. Different doses and timing of SMe1EC2 administration might bring improvement in next learning performance.
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Affiliation(s)
- Zdenka Gasparova
- Institute of Experimental Pharmacology and Toxicology, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Veronika Stara
- Institute of Experimental Pharmacology and Toxicology, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Pavol Janega
- Department of Pathology, Faculty of Medicine, Comenius University, Bratislava, Slovakia
| | - Jana Navarova
- Institute of Experimental Pharmacology and Toxicology, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Natalia Sedlackova
- Institute of Experimental Pharmacology and Toxicology, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Mojmir Mach
- Institute of Experimental Pharmacology and Toxicology, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Eduard Ujhazy
- Institute of Experimental Pharmacology and Toxicology, Slovak Academy of Sciences, Bratislava, Slovakia
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Mego M, Karaba M, Minarik G, Benca J, Sedlackova T, Tothova L, Vlkova B, Cierna Z, Janega P, Manasova D, Luha J, Gronesova P, Pechan J, Fridrichova I, Celec P, Reuben JM, Cristofanilli M, Mardiak J. Abstract P1-04-02: Correlation between blood markers of hemostasis and circulating tumor cells (CTCs) in early breast cancer patients. Cancer Res 2013. [DOI: 10.1158/0008-5472.sabcs13-p1-04-02] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Cancer is a risk factor for venous thromboembolism (VTE) and plasma D-dimer (DD) and tissue factor (TF) are established blood markers associated with VTE. CTCs are an independent predictor of survival in early and metastatic breast cancer (BC) patients (pts) and CTCs are associated with the risk of VTE in metastatic BC pts. In this study, we hypothesized correlation between plasma DD and TF with presence of CTCs. Moreover, we hypothesized, that activation of urokinase plasminogen activator system (uPA) could be involved in CTCs released into peripheral blood (PB) as well as coagulation activation.
Methods: This prospective study included 119 early BC patients treated by primary surgery followed by systemic therapies when indicated, at the NCI in Slovakia from March to December 2012. Isolated peripheral blood mononuclear cells (PBMC) were depleted of hematopoietic cells (CD45+) using RossetteSepTM negative selection kit. RNA extracted from CD45-depleted PBMC was interrogated for expression of EMT-inducing transcription factors (TWIST1, SNAIL1, SLUG, ZEB1) and epithelial (CK19) gene transcripts by qRT-PCR. Expressions of gene transcripts in CD45- PBMC of pts and healthy donors (HD) were compared. Patient samples with higher epithelial and/or mesenchymal gene transcripts than those of HD (n = 60) were considered as CTC positive. Plasma DD, TF, uPA (urokinase-type plasminogen activator) and PAI-1 (plasminogen activator inhibitor) levels were detected by ELISA, while expressions of TF and uPA system in surgical specimens were evaluated by immunohistochemistry.
Results: CTCs were detected in 27.7% pts. The majority of CTCs exhibited either epithelial differentiation (13.5% pts) or mesenchymal phenotype (EMT markers in 15.1% of pts). A small fraction of CTCs showed co-expression of both markers (0.8%). Pts with any CTCs in PB had significantly higher mean ± SEM plasma DD levels (ng/mL) than those of pts without CTCs (632.4 ± 75.9 vs. 365.4 ± 47.0, p = 0.00002). This association was observed for both, epithelial CTCs (688.4 ± 110.4 vs. 400.7 ± 43.5 (p = 0.026) and mesenchymal CTCs (573.1 ± 105.8 vs. 415.6 ± 44.7, p = 0.0007). There was no association between plasma TF levels or breast tumor TF expression and CTCs. Patients with any CTCs had higher mean ± SEM plasma uPA (ng/mL) (374.6 ± 32.6 vs. 307.1 ± 20.3, p = 0.02) and PAI-1 (pg/mL) levels (5.3 ± 0.7 vs. 4.4 ± 0.4, p = 0.28), than those of patients without CTCs, however, there was no correlation between plasma uPA system activation and DD or TF levels. In multivariate analysis CTCs, patients age and tumor grade were independent factors associated with plasma DD levels.
Conclusion: This prospective study showed for the first time a positive association between plasma D-dimer levels and CTCs indicating a potential role for activation of the coagulation cascade in the early metastatic process. We hypothesize that CTCs could be directly involved in coagulation activation in breast cancer patients, or alternatively an increased CTCs count could be a marker of more aggressive disease and increased risk of VTE. Future studies will need to address the prognostic implications of these observations with the potential for therapeutic interventions for the metastatic process.
Citation Information: Cancer Res 2013;73(24 Suppl): Abstract nr P1-04-02.
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Affiliation(s)
- M Mego
- Faculty of Medicine, Comenius University, Bratislava, Slovakia (Slovak Republic); National Cancer Institute, Bratislava, Slovakia (Slovak Republic); Cancer Research Institute, Bratislava, Slovakia (Slovak Republic); Institute of Normal and Pathological Physiology, Bratislava, Slovakia (Slovak Republic); University of Texas, MD Anderson Cancer Center, Houston, TX; Thomas Jefferson University-Kimmel Cancer Center, Philadelphia, PA
| | - M Karaba
- Faculty of Medicine, Comenius University, Bratislava, Slovakia (Slovak Republic); National Cancer Institute, Bratislava, Slovakia (Slovak Republic); Cancer Research Institute, Bratislava, Slovakia (Slovak Republic); Institute of Normal and Pathological Physiology, Bratislava, Slovakia (Slovak Republic); University of Texas, MD Anderson Cancer Center, Houston, TX; Thomas Jefferson University-Kimmel Cancer Center, Philadelphia, PA
| | - G Minarik
- Faculty of Medicine, Comenius University, Bratislava, Slovakia (Slovak Republic); National Cancer Institute, Bratislava, Slovakia (Slovak Republic); Cancer Research Institute, Bratislava, Slovakia (Slovak Republic); Institute of Normal and Pathological Physiology, Bratislava, Slovakia (Slovak Republic); University of Texas, MD Anderson Cancer Center, Houston, TX; Thomas Jefferson University-Kimmel Cancer Center, Philadelphia, PA
| | - J Benca
- Faculty of Medicine, Comenius University, Bratislava, Slovakia (Slovak Republic); National Cancer Institute, Bratislava, Slovakia (Slovak Republic); Cancer Research Institute, Bratislava, Slovakia (Slovak Republic); Institute of Normal and Pathological Physiology, Bratislava, Slovakia (Slovak Republic); University of Texas, MD Anderson Cancer Center, Houston, TX; Thomas Jefferson University-Kimmel Cancer Center, Philadelphia, PA
| | - T Sedlackova
- Faculty of Medicine, Comenius University, Bratislava, Slovakia (Slovak Republic); National Cancer Institute, Bratislava, Slovakia (Slovak Republic); Cancer Research Institute, Bratislava, Slovakia (Slovak Republic); Institute of Normal and Pathological Physiology, Bratislava, Slovakia (Slovak Republic); University of Texas, MD Anderson Cancer Center, Houston, TX; Thomas Jefferson University-Kimmel Cancer Center, Philadelphia, PA
| | - L Tothova
- Faculty of Medicine, Comenius University, Bratislava, Slovakia (Slovak Republic); National Cancer Institute, Bratislava, Slovakia (Slovak Republic); Cancer Research Institute, Bratislava, Slovakia (Slovak Republic); Institute of Normal and Pathological Physiology, Bratislava, Slovakia (Slovak Republic); University of Texas, MD Anderson Cancer Center, Houston, TX; Thomas Jefferson University-Kimmel Cancer Center, Philadelphia, PA
| | - B Vlkova
- Faculty of Medicine, Comenius University, Bratislava, Slovakia (Slovak Republic); National Cancer Institute, Bratislava, Slovakia (Slovak Republic); Cancer Research Institute, Bratislava, Slovakia (Slovak Republic); Institute of Normal and Pathological Physiology, Bratislava, Slovakia (Slovak Republic); University of Texas, MD Anderson Cancer Center, Houston, TX; Thomas Jefferson University-Kimmel Cancer Center, Philadelphia, PA
| | - Z Cierna
- Faculty of Medicine, Comenius University, Bratislava, Slovakia (Slovak Republic); National Cancer Institute, Bratislava, Slovakia (Slovak Republic); Cancer Research Institute, Bratislava, Slovakia (Slovak Republic); Institute of Normal and Pathological Physiology, Bratislava, Slovakia (Slovak Republic); University of Texas, MD Anderson Cancer Center, Houston, TX; Thomas Jefferson University-Kimmel Cancer Center, Philadelphia, PA
| | - P Janega
- Faculty of Medicine, Comenius University, Bratislava, Slovakia (Slovak Republic); National Cancer Institute, Bratislava, Slovakia (Slovak Republic); Cancer Research Institute, Bratislava, Slovakia (Slovak Republic); Institute of Normal and Pathological Physiology, Bratislava, Slovakia (Slovak Republic); University of Texas, MD Anderson Cancer Center, Houston, TX; Thomas Jefferson University-Kimmel Cancer Center, Philadelphia, PA
| | - D Manasova
- Faculty of Medicine, Comenius University, Bratislava, Slovakia (Slovak Republic); National Cancer Institute, Bratislava, Slovakia (Slovak Republic); Cancer Research Institute, Bratislava, Slovakia (Slovak Republic); Institute of Normal and Pathological Physiology, Bratislava, Slovakia (Slovak Republic); University of Texas, MD Anderson Cancer Center, Houston, TX; Thomas Jefferson University-Kimmel Cancer Center, Philadelphia, PA
| | - J Luha
- Faculty of Medicine, Comenius University, Bratislava, Slovakia (Slovak Republic); National Cancer Institute, Bratislava, Slovakia (Slovak Republic); Cancer Research Institute, Bratislava, Slovakia (Slovak Republic); Institute of Normal and Pathological Physiology, Bratislava, Slovakia (Slovak Republic); University of Texas, MD Anderson Cancer Center, Houston, TX; Thomas Jefferson University-Kimmel Cancer Center, Philadelphia, PA
| | - P Gronesova
- Faculty of Medicine, Comenius University, Bratislava, Slovakia (Slovak Republic); National Cancer Institute, Bratislava, Slovakia (Slovak Republic); Cancer Research Institute, Bratislava, Slovakia (Slovak Republic); Institute of Normal and Pathological Physiology, Bratislava, Slovakia (Slovak Republic); University of Texas, MD Anderson Cancer Center, Houston, TX; Thomas Jefferson University-Kimmel Cancer Center, Philadelphia, PA
| | - J Pechan
- Faculty of Medicine, Comenius University, Bratislava, Slovakia (Slovak Republic); National Cancer Institute, Bratislava, Slovakia (Slovak Republic); Cancer Research Institute, Bratislava, Slovakia (Slovak Republic); Institute of Normal and Pathological Physiology, Bratislava, Slovakia (Slovak Republic); University of Texas, MD Anderson Cancer Center, Houston, TX; Thomas Jefferson University-Kimmel Cancer Center, Philadelphia, PA
| | - I Fridrichova
- Faculty of Medicine, Comenius University, Bratislava, Slovakia (Slovak Republic); National Cancer Institute, Bratislava, Slovakia (Slovak Republic); Cancer Research Institute, Bratislava, Slovakia (Slovak Republic); Institute of Normal and Pathological Physiology, Bratislava, Slovakia (Slovak Republic); University of Texas, MD Anderson Cancer Center, Houston, TX; Thomas Jefferson University-Kimmel Cancer Center, Philadelphia, PA
| | - P Celec
- Faculty of Medicine, Comenius University, Bratislava, Slovakia (Slovak Republic); National Cancer Institute, Bratislava, Slovakia (Slovak Republic); Cancer Research Institute, Bratislava, Slovakia (Slovak Republic); Institute of Normal and Pathological Physiology, Bratislava, Slovakia (Slovak Republic); University of Texas, MD Anderson Cancer Center, Houston, TX; Thomas Jefferson University-Kimmel Cancer Center, Philadelphia, PA
| | - JM Reuben
- Faculty of Medicine, Comenius University, Bratislava, Slovakia (Slovak Republic); National Cancer Institute, Bratislava, Slovakia (Slovak Republic); Cancer Research Institute, Bratislava, Slovakia (Slovak Republic); Institute of Normal and Pathological Physiology, Bratislava, Slovakia (Slovak Republic); University of Texas, MD Anderson Cancer Center, Houston, TX; Thomas Jefferson University-Kimmel Cancer Center, Philadelphia, PA
| | - M Cristofanilli
- Faculty of Medicine, Comenius University, Bratislava, Slovakia (Slovak Republic); National Cancer Institute, Bratislava, Slovakia (Slovak Republic); Cancer Research Institute, Bratislava, Slovakia (Slovak Republic); Institute of Normal and Pathological Physiology, Bratislava, Slovakia (Slovak Republic); University of Texas, MD Anderson Cancer Center, Houston, TX; Thomas Jefferson University-Kimmel Cancer Center, Philadelphia, PA
| | - J Mardiak
- Faculty of Medicine, Comenius University, Bratislava, Slovakia (Slovak Republic); National Cancer Institute, Bratislava, Slovakia (Slovak Republic); Cancer Research Institute, Bratislava, Slovakia (Slovak Republic); Institute of Normal and Pathological Physiology, Bratislava, Slovakia (Slovak Republic); University of Texas, MD Anderson Cancer Center, Houston, TX; Thomas Jefferson University-Kimmel Cancer Center, Philadelphia, PA
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Milcheva R, Petkova S, Hurniková Z, Janega P, Babál P. The occupation of intestinal epithelium by Trichinella spiralis in BALB/C mice is not associated with local manifestation of apoptosis related factors. Parasitol Res 2013; 112:3917-24. [DOI: 10.1007/s00436-013-3582-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2012] [Accepted: 08/13/2013] [Indexed: 11/25/2022]
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Mego M, Gronesova P, Miskovska V, Obertova J, Palacka P, Rajec J, Sycova-Mila Z, Vertakova-Krakovska B, Chovanec M, Janega P, Svetlovska D, Usakova V, Bujdak P, Spanik S, Ondrus D, Mardiak J. Expression profiling of peripheral blood (PB) enriched for circulating tumor cells (CTCs) in testicular germ cell tumors (TGCTs). J Clin Oncol 2013. [DOI: 10.1200/jco.2013.31.15_suppl.4556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
4556 Background: CTCs are prognostic in several types of tumors and are easily accessible for repeat examination. TGCTs represent a model for the cure of cancer. Nonetheless, a small proportion of patients develop disease recurrence. We investigated expression profiling of PB enriched for CTCs in TGCTs aimed to identify expression signature associated with treatment resistance. Methods: This prospective study included 30 patients (pt) treated with first line (27 pt) or salvage (3 pt) chemotherapy. CD45- peripheral mononuclear cells (PBMCs) were isolated from 10mL of PB on day 1 and on day 22 of first cycle of chemotherapy. Isolated PBMC were depleted of cells of hematopoietic origin (CD45+) using RossetteSep kit negative selection with anti-CD45 antibody. CD45-depleted PBMC represent compartment enriched for CTCs, as showed previously. RNA was extracted from CD45-PBMCs and the expression profiles were obtained using Roche NimbleGen microarrays. Data analysis was processed in R using a limma package followed by GO analysis and MetaCore pathway analysis. Results: Six patients achieved unfavorable response to chemotherapy (other than CR or PR with negative serum markers). We identified 1,506 and 211 genes that were expressed at significantly different levels (FDR<0.05) on day 1 and day 22 of chemotherapy, respectively, with 108 overlapping genes. Cluster analysis using principal component analysis showed, that 5 of 6 samples from patients with unfavourable response to chemotherapy form clearly defined cluster opposed to samples from patients with favourable response. Based on pretreatment expression profiling using MetaCore pathway analysis software, we further identified 758 genes, belonging to several critical functional groups such as immune response, signal transduction, cell proliferation, cell cycle progression, or apoptosis, to be significantly differentially expressed in patients with favourable vs. unfavourable response. Conclusions: Our data suggests that expression profiling of PB enriched for CTCs in TGCTs is feasible, and show great promise in identifying new therapeutic targets and gene expression signature associated with treatment resistance.
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Affiliation(s)
- Michal Mego
- Faculty of Medicine, Comenius University and National Cancer Institute, Bratislava, Slovakia
| | | | - Vera Miskovska
- 1st Department of Oncology, Comenius University, Faculty of Medicine and St. Elisabeth Cancer Institute, Bratislava, Slovakia
| | - Jana Obertova
- Faculty of Medicine, Comenius University and National Cancer Institute, Bratislava, Slovakia
| | - Patrik Palacka
- Faculty of Medicine, Comenius University and National Cancer Institute, Bratislava, Slovakia
| | - Jan Rajec
- Faculty of Medicine, Comenius University and National Cancer Institute, Bratislava, Slovakia
| | | | | | - Michal Chovanec
- Faculty of Medicine, Comenius University and National Cancer Institute, Bratislava, Slovakia
| | - Pavol Janega
- Faculty of Medicine, Comenius University, Bratislava, Slovakia
| | - Daniela Svetlovska
- Faculty of Medicine, Comenius University and National Cancer Institute, Bratislava, Slovakia
| | - Vanda Usakova
- St. Elizabeth Cancer Institute, Bratislava, Slovakia
| | - Peter Bujdak
- Department of Urology, Slovak Medical University, Bratislava, Slovakia
| | | | - Dalibor Ondrus
- 1st Department of Oncology, Faculty of Medicine, Comenius University and St.Elisabeth Cancer Institute, Bratislava, Slovakia
| | - Jozef Mardiak
- 2nd Oncology Department, Comenius University, Medical School and National Cancer Institute, Bratislava, Slovakia
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Milcheva R, Janega P, Celec P, Russev R, Babál P. Alcohol based fixatives provide excellent tissue morphology, protein immunoreactivity and RNA integrity in paraffin embedded tissue specimens. Acta Histochem 2013; 115:279-89. [PMID: 22921675 DOI: 10.1016/j.acthis.2012.08.002] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2012] [Revised: 08/03/2012] [Accepted: 08/05/2012] [Indexed: 11/24/2022]
Abstract
Fixation techniques preserving morphological fidelity, protein antigenicity and integrity of nucleic acids can have a high impact on both basic and applied biomedical sciences and diagnostic pathology. Different types of mouse tissues were fixed with neutral buffered formalin, ethanol supplemented with acetic acid and modified methacarn (methanol-Carnoy) fixative. The alcohol-fixed samples were processed in an Autotechnicon tissue processor or in an incubator. The preservation of tissue morphology was assessed in all specimens and the immunoreactivity was evaluated with antibodies specific for proteins with nuclear, membrane or cytoplasmic localization. RNA was extracted from all groups of fixed hind limb skeletal muscle specimens and was assessed versus unfixed tissue for preservation of its quantity and quality by amplification of gene-specific fragments of different lengths. Both alcohol-based fixatives preserved the tissue architecture and the specificity of immunoreactivity in excellent quality; the trimming approach did not result in detectable differences. Oligonucleotide fragments of length between 108 and 577 base pairs were amplified from all groups of alcohol-fixed skeletal muscle specimens in amounts comparative to the unfixed muscle tissue. We conclude that both alcohol-based fixatives are an excellent tool for storage of tissue samples designed for immunohistochemical and mRNA expression studies when the access to fresh samples is limited.
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Kucerova L, Feketeova L, Matuskova M, Kozovska Z, Janega P, Babal P, Poturnajova M. Local bystander effect induces dormancy in human medullary thyroid carcinoma model in vivo. Cancer Lett 2013; 335:299-305. [PMID: 23485727 DOI: 10.1016/j.canlet.2013.02.040] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2012] [Revised: 12/21/2012] [Accepted: 02/18/2013] [Indexed: 10/27/2022]
Abstract
The extent of local bystander effect induced by fusion yeast cytosine deaminase::uracil phosphoribosyltransferase (yCD) in combination with 5-fluorocytosine (5FC) was evaluated in xenogeneic model of human medullary thyroid carcinoma (MTC). This approach to gene-directed enzyme/prodrug therapy (GDEPT) induces strong bystander cytotoxicity. Effector yCD-TT mixed with target EGFP-TT cells in a ratio 2:9 could achieve significant tumor regression and 14-fold decrease in serum marker calcitonin upon 5FC administration. Histopathological analysis unraveled that antitumor effect resulted in tumor dormancy and proliferation arrest of remaining tumor cell clusters in vivo. yCD/5FC combination represents another GDEPT approach to achieve tumor growth control in MTC.
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Affiliation(s)
- Lucia Kucerova
- Laboratory of Molecular Oncology, Cancer Research Institute, Slovak Academy of Sciences, Vlarska 7, 833 91 Bratislava, Slovakia.
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