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001-es BibID:BIBFORM009630
Első szerző:Hádáné Birkó Zsuzsanna (molekuláris genetikus)
Cím:Lack of A-factor production induces the expression of nutrient scavenging and stress-related proteins in Streptomyces griseus / Birkó Zsuzsanna, Swiatek Magdalena, Szájli Emília, Medzihradszky F. Katalin, Vijgenboom Erik, Penyige András, Keserű Judit, van Wezel Gilles P., Biró Sándor
ISSN:1535-9476 (Print)
Megjegyzések:The small gamma-butyrolactone A-factor is an important autoregulatory signaling molecule for the soil-inhabiting streptomycetes. Starvation is a major trigger for development,and nutrients are provided by degradation of the vegetative mycelium via a process of programmed cell death, reusing proteins, nucleic acids, and cell wall material. The A-factor regulon includes many extracellular hydrolases. Here we show via proteomics analysis that many nutrientscavenging and stress-related proteins were overexpressed in an A-factor non-producing mutant of Streptomyces griseus B-2682. Transcript analysis showed that this is primarily due to differential transcription of the target genes during early development. The targets include proteins relating to nutrient stress and environmental stress and an orthologue of the Bacillus sporulation control protein Spo0M. The enhanced expression of these proteins underlines the stress that is generated by the absence of A-factor. Wild-type developmental gene expression was restored to the A-factor non-producing mutant by the signaling protein Factor C in line with our earlier observation that Factor C triggers A-factor production.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
Streptomyces griseus
Megjelenés:Molecular and Cellular Proteomics : MCP - 8 : 10 (2009), p. 2396-2403. -
További szerzők:Swiatek, Magdalena Szájli Emília Medzihradszky-Fölkl Katalin Vijgenboom, Erik Penyige András (1954-) (molekuláris genetikus) Keserű Judit (1976-) (molekuláris genetikus) Wezel, Gilles P., van Biró Sándor (1949-) (molekuláris genetikus)
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001-es BibID:BIBFORM078520
035-os BibID:(PMID)31002856 (WoS)000466942100010 (Scopus)85064701689
Első szerző:Keserű Judit (molekuláris genetikus)
Cím:Detection of cell-free, exosomal and whole blood mitochondrial DNA copy number in plasma or whole blood of patients with serous epithelial ovarian cancer / Keserű J. S., Soltész B., Lukács J., Márton É., Szilágyi-Bónizs M., Penyige A., Póka R., Nagy B.
Megjegyzések:Ovarian tumor is one of the leading causes of cancer among women. Patients are diagnosed at an advanced stage, usually. There is a need for new specific and sensitive biomarkers. Mitochondrial DNA copy number change was observed in various cancers. Our aim was to detect mitochondrial DNA copy number in whole blood (wb-mtDNA) and in plasma (cell-free and exosome encapsulated mtDNA) in patients with serous epithelial ovarian tumor. DNA was isolated from EDTA blood and plasma obtained from 24 patients and 24 healthy controls. Exosomes were isolated from cell-free plasma, and exosome encapsulated DNA (exoDNA) was extracted. Quantitative-real-time PCR was performed with Human Mitochondrial DNA (mtDNA) Monitoring Primer Set. Kruskall?Wallis and Mann?Whitney U test were used for data analysis. Wb-mtDNA copy number was significantly different among healthy controls and patients in multiple comparison (p?=?0.0090 considering FIGO stage independently, and p?=?0.0048 considering early- and late-stage cancers). There was a significant decrease among early-stage, all advanced stage and all cancer patients (FIGO I: 32.5?±?8.3, p?=?0.0061; FIGO III?+?IV: 37.2?±?13.7 p?=?0.0139; FIGO I?+?III?+?IV: 35.6?±?12.2, p?=?0.0017) or FIGO III patients alone (32.8?±?5.6, p?=?0.00089) compared to healthy controls. We found significant increase in copy number in exosomal mtDNA in cancer patients (236.0?±?499.0, p?=?0.0155), advanced-stage cancer patients (333.0?±?575.0, p?=?0.0095), of FIGO III (362.0?±?609.2, p?=?0.0494), and FIGO IV (304.0?±?585.0, p?=?0.0393) patients alone but not in samples of FIGO I patients (10.0?±?3.5, p?=?0.3907). In multiple comparison the increase was significant considering early- and late-stage cancers (p?=?0.0253). Cell-free mtDNA copy numbers were not increased significantly. We found the highest copy number of mtDNA in exosomes, followed by plasma and peripheral blood in late-stage cancer patients. We observed significant difference in wb-mtDNA copy number between healthy controls and both early- and late-stage cancer patients.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
Cell-free mtDNA
Exosomal mtDNA
Mitochondrial DNA
Serous ovarian cancer
Megjelenés:Journal of Biotechnology. - 298 (2019), p. 76-81. -
További szerzők:Soltész Beáta (1987-) (molekuláris biológus) Lukács János (1975-) (szülész-nőgyógyász, genetikus) Márton Éva (1992-) (biológus) Szilágyi Melinda (1984-) (biológus) Penyige András (1954-) (molekuláris genetikus) Póka Róbert (1960-) (szülész-nőgyógyász, klinikai onkológus) Nagy Bálint (1956-) (molekuláris genetikus)
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001-es BibID:BIBFORM073381
035-os BibID:(cikkazonosító)E-P18.36 (WoS)000489312608202
Első szerző:Keserű Judit (molekuláris genetikus)
Cím:Determination of miR-196a Single Nucleotide Polymorphism (SNP) with melting-curve analysis in the population of patients with ovarian cancer / J. S. Keserű, J. Lukács, B. Soltész, K. Szirák, Z. Birkó, A. Penyige, B. Nagy, R. Póka
ISSN:1018-4813 1476-5438
Megjegyzések:Introduction: miRNA molecules are short, non-coding sequences regulating gene expression after transcription. They are important in the development, progression and treatability of tumours. Single Nucleotide Polymorphism (SNP) is the most frequent type of genetic polymorphism. That is true also for miRNAs and their polymorphisms can cause alterations in the gene expression profile. miR-196a was also linked to the genesis of different tumours.Aim: Search for correlation between miR-196a polymorphism and development of ovarian cancer.Materials and Methods: 75 patients with ovarian cancer and 75 healthy persons were investigated. 15-16 mL blood anticoagulated with EDTA was drawn. DNA was isolated with silica absorption method and the melting curve of PCR products generated with LightSnip kit (TibMolbiol, Berlin, Germany) developed for miR-196a (rs11614913) SNP was determined by LightCycler 96 equipment. Allele and genotype frequencies were specified and Student t-test was applied for statistical analysis of data.Results: The Tm of PCR products were 55.5?C for T allele and 62.6?C for C allele with melting-curve analysis. T allele occurred in 32.66% in population of patients and in 40.66% in control group. Genotypes among control persons were 18.66% for TT, 44.0% for TC, and 37.33% CC, while in case of patients these frequencies were 12.0%, 41.33%, and 46.66%, respectively (p=0.3815).Conclusion: miR-196a influences the expression of 684 genes, it requires further complex investigation, whether it is involved in the development of ovarian cancer.
Tárgyszavak:Orvostudományok Klinikai orvostudományok idézhető absztrakt
ovarian cancer
Megjelenés:European Journal of Human Genetics. - 26 : Suppl. (2018), p. 1. -
További szerzők:Lukács János (1975-) (szülész-nőgyógyász, genetikus) Soltész Beáta (1987-) (molekuláris biológus) Szirák Krisztina (1973-) (molekuláris genetikus) Hádáné Birkó Zsuzsanna (1971-) (molekuláris genetikus) Penyige András (1954-) (molekuláris genetikus) Nagy Bálint (1956-) (molekuláris genetikus) Póka Róbert (1960-) (szülész-nőgyógyász, klinikai onkológus)
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001-es BibID:BIBFORM039004
035-os BibID:PMID:19851727
Első szerző:Penyige András (molekuláris genetikus)
Cím:Analysis and identification of ADP-ribosylated proteins of Streptomyces coelicolor M145 / András Penyige, Judit Keseru, Ferenc Fazakas, Iván Schmelczer, Krisztina Szirák, György Barabás, Sándor Biró
Megjegyzések:Mono-ADP-ribosylation is the enzymatic transfer of ADP-ribose from NAD(+) to acceptor proteins catalyzed by ADP-ribosyltransferases. Using m-aminophenylboronate affinity chromatography, 2D-gel electrophoresis, in-gel digestion and MALDI-TOF analysis we have identified eight in vitro ADP-ribosylated proteins in Streptomyces coelicolor, which can be classified into three categories: (i) secreted proteins; (ii) metabolic enzymes using NAD(+)/NADH or NADP(+)/NADPH as coenzymes; and (iii) other proteins. The secreted proteins could be classified into two functional categories: SCO2008 and SC05477 encode members of the family of periplasmic extracellular solute-binding proteins, and SCO6108 and SC01968 are secreted hydrolases. Dehydrogenases are encoded by SC04824 and SC04771. The other targets are GlnA (glutamine synthetase I., SC02198) and SpaA (starvation-sensing protein encoded by SC07629). SCO2008 protein and GlnA had been identified as ADP-ribosylated proteins in previous studies. With these results we provided experimental support for a previous suggestion that ADP-ribosylation may regulate membrane transport and localization of periplasmic proteins. Since ADP-ribosylation results in inactivation of the target protein, ADP-ribosylation of dehydrogenases might modulate crucial primary metabolic pathways in Streptomyces. Several of the proteins identified here could provide a strong connection between protein ADP-ribosylation and the regulation of morphological differentiation in S. coelicolor.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
protein ADP-ribosylation
Streptomyces coelicolor
egyetemen (Magyarországon) készült közlemény
Megjelenés:Journal Of Microbiology. - 47 : 5 (2009), p. 549-556. -
További szerzők:Fazakas Ferenc (1969-) (molekuláris biológus) Schmelczer Iván Keserű Judit (1976-) (molekuláris genetikus) Szirák Krisztina (1973-) (molekuláris genetikus) Barabás György (1933-) (sejtbiológus, molekuláris genetikus) Biró Sándor (1949-) (molekuláris genetikus)
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001-es BibID:BIBFORM068987
Első szerző:Soltész Beáta (molekuláris biológus)
Cím:A miR-193b két egynukleotidos polimorfizmusának meghatározása ováriumtumoros betegek mintáiban / Soltész Beáta, Lukács János, Keserű Judit, Szentesiné Szirák Krisztina, Penyige András, Póka Róbert, Nagy Bálint
Tárgyszavak:Orvostudományok Klinikai orvostudományok magyar nyelvű folyóiratközlemény hazai lapban
Megjelenés:Magyar Nőorvosok Lapja. - 80 : 3 (2017), p. 116-120. -
További szerzők:Lukács János (1975-) (szülész-nőgyógyász, genetikus) Keserű Judit (1976-) (molekuláris genetikus) Szirák Krisztina (1973-) (molekuláris genetikus) Penyige András (1954-) (molekuláris genetikus) Póka Róbert (1960-) (szülész-nőgyógyász, klinikai onkológus) Nagy Bálint (1956-) (molekuláris genetikus)
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001-es BibID:bibEBI00026276
035-os BibID:(cikkazonosító)6827 (scopus)85091140313 (wos)000579918800001
Első szerző:Szilágyi Melinda (biológus)
Cím:Circulating cell-free nucleic acids : main characteristics and clinical application / Melinda Szilágyi, Ondrej Pös, Éva Márton, Gergely Buglyó, Beáta Soltész, Judit Keserű, András Penyige, Tomas Szemes, Bálint Nagy
ISSN:1661-6596 1422-0067
Megjegyzések:Liquid biopsy recently became a very promising diagnostic method that has several advantages over conventional invasive methods. Liquid biopsy may serve as a source of several important biomarkers including cell-free nucleic acids (cf-NAs). Cf-DNA is widely used in prenatal testing in order to characterize fetal genetic disorders. Analysis of cf-DNA may provide information about the mutation profile of tumor cells, while cell-free non-coding RNAs are promising biomarker candidates in the diagnosis and prognosis of cancer. Many of these markers have the potential to help clinicians in therapy selection and in the follow-up of patients. Thus, cf-NA-based diagnostics represent a new path in personalized medicine. Although several reviews are available in the field, most of them focus on a limited number of cf-NA types. In this review, we give an overview about all known cf-NAs including cf-DNA, cf-mtDNA and cell-free non-coding RNA (miRNA, lncRNA, circRNA, piRNA, YRNA, and vtRNA) by discussing their biogenesis, biological function and potential as biomarker candidates in liquid biopsy. We also outline possible future directions in the field.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
cell-free nucleic acids
biological fluids
liquid biopsy
Megjelenés:International Journal of Molecular Sciences. - 21 : 18 (2020), p. 1-20. -
További szerzők:Pös, Ondrej (1990-) (biológus) Márton Éva (1992-) (biológus) Buglyó Gergely (1980-) (genetikus) Soltész Beáta (1987-) (molekuláris biológus) Keserű Judit (1976-) (molekuláris genetikus) Penyige András (1954-) (molekuláris genetikus) Szemes, Tomas (1980-) (biológus) Nagy Bálint (1956-) (molekuláris genetikus)
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001-es BibID:BIBFORM039003
035-os BibID:PMID:22752904
Első szerző:Szirák Krisztina (molekuláris genetikus)
Cím:Disruption of SCO5461 gene coding for a mono-ADP-ribosyltransferase enzyme produces a conditional pleiotropic phenotype affecting morphological differentiation and antibiotic production in Streptomyces coelicolor / Krisztina Szirák, Judit Keserű, Sándor Biró, Iván Schmelczer, György Barabás, András Penyige
Megjegyzések:The SCO5461 gene of Streptomyces coelicolor A3(2) codes for an ADP-ribosyltransferase enzyme that is predicted to be a transmembrane protein with an extracellular catalytic domain. PCR-targeted disruption of the gene resulted in a mutant that differentiated normally on complex SFM medium; however, morphological differentiation in minimal medium was significantly delayed and this phenotype was even more pronounced on osmotically enhanced minimal medium. The mutant did not sporulate when it was grown on R5 medium, however the normal morphological differentiation was restored when the strain was cultivated beside the wild-type S. coelicolor M145 strain. Comparison of the pattern of ADP-ribosylated proteins showed a difference between the mutant and the wild type, fewer modified proteins were present in the cellular crude extract of the mutant strain. These results support our previous suggestions that protein ADP-ribosylation is involved in the regulation of differentiation and antibiotic production and secretion in Streptomyces.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
egyetemen (Magyarországon) készült közlemény
protein ADP-ribosylation
morphological differentiation
actinorhodin production and secretion
Megjelenés:Journal of Microbiology. - 50 : 3 (2012), p. 409-418. -
További szerzők:Schmelczer Iván Keserű Judit (1976-) (molekuláris genetikus) Biró Sándor (1949-) (molekuláris genetikus) Barabás György (1933-) (sejtbiológus, molekuláris genetikus) Penyige András (1954-) (molekuláris genetikus)
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