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001-es BibID:BIBFORM101421
035-os BibID:(cikkazonosító)4284 (scopus)85128130388 (wos)000785465100001
Első szerző:Buglyó Gergely (genetikus)
Cím:Liquid Biopsy as a Source of Nucleic Acid Biomarkers in the Diagnosis and Management of Lynch Syndrome / Gergely Buglyó, Jakub Styk, Ondrej Pös, Ádám Csók, Vanda Repiska, Beáta Soltész, Tomas Szemes, Bálint Nagy
Dátum:2022
ISSN:1661-6596 1422-0067
Megjegyzések:Lynch syndrome (LS) is an autosomal dominant inherited cancer predisposition disorder, which may manifest as colorectal cancer (CRC), endometrial cancer (EC) or other malignancies of the gastrointestinal and genitourinary tract as well as the skin and brain. Its genetic cause is a defect in one of the four key DNA mismatch repair (MMR) loci. Testing of patients at risk is currently based on the absence of MMR protein staining and detection of mutations in cancer tissue and the germline, microsatellite instability (MSI) and the hypermethylated state of the MLH1 promoter. If LS is shown to have caused CRC, lifetime follow-up with regular screening (most importantly, colonoscopy) is required. In recent years, DNA and RNA markers extracted from liquid biopsies have found some use in the clinical diagnosis of LS. They have the potential to greatly enhance the efficiency of the follow-up process by making it minimally invasive, reproducible, and time effective. Here, we review markers reported in the literature and their current clinical applications, and we comment on possible future directions.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Lynch syndrome
colorectal cancer
screening
liquid biopsy
circulating nucleic acids
biomarker
Megjelenés:International Journal Of Molecular Sciences. - 23 : 8 (2022), p. 4284. -
További szerzők:Styk, Jakub Pös, Ondrej (1990-) (biológus) Csók Ádám (1994-) (biológus) Repiska Vanda Soltész Beáta (1987-) (molekuláris biológus) Szemes, Tomas (1980-) (biológus) Nagy Bálint (1956-) (molekuláris genetikus)
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2.

001-es BibID:BIBFORM111719
035-os BibID:(cikkazonosító)8793 (WoS)000996948500001 (Scopus)85160377221
Első szerző:Csók Ádám (biológus)
Cím:Alterations of miRNA Expression in Diffuse Hyperplastic Perilobar Nephroblastomatosis : Mapping the Way to Understanding Wilms' Tumor Development and Differential Diagnosis / Csók Ádám, Micsik Tamás, Magyar Zsófia, Tornóczky Tamás, Kuthi Levente, Nishi Yumika, Szirák Krisztina, Csóka Monika, Ottóffy Gábor, Soltész Beáta, Balogh István, Buglyó Gergely
Dátum:2023
ISSN:1422-0067
Megjegyzések:Wilms' tumor (WT) is the most common renal malignancy in children. In diffuse hyperplastic perilobar nephroblastomatosis (DHPLN), nephrogenic rests result in a bulky enlargement of the kidney, a condition considered as a premalignant state before WT. Despite relevant clinical differences between WT and DHPLN, they are often challenging to distinguish based on histology. Molecular markers would improve differential diagnosis, but none are available at present. In our study, we investigated the potential of microRNAs (miRNAs) as such biomarkers, also aiming to shed light on the chronological order of expression changes. Formalin-fixed, paraffin-embedded (FFPE) samples from four DHPLN cases and adjacent healthy tissues were tested using a PCR array containing primers for 84 miRNAs implicated in genitourinary cancer. Expression in DHPLN was compared to WT data available in dbDEMC. Let-7, miR-135, miR-146a-5p, miR-182-5p, miR-183-5p, miR-20b-3p, miR-29b-3p, miR-195-5p and miR-17-5p showed potential to be used as biomarkers to distinguish WT and DHPLN in cases when traditional differential diagnosis is inconclusive. Our study also revealed miRNAs which may play a role in the initial steps of the pathogenesis (at a precancerous stage) and ones which become deregulated later in WT. More experiments are needed to confirm our observations and find new candidate markers.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Wilms' tumor
nephrogenic rest
diffuse hyperplastic perilobar nephroblastomatosis
miRNA
formalin-fixed, paraffin-embedded sample
Megjelenés:International Journal Of Molecular Sciences. - 24 : 10 (2023), p. 1-16. -
További szerzők:Micsik Tamás Magyar Zsófia Tornóczky Tamás Kuthi Levente Nishi, Yumika Szirák Krisztina (1973-) (molekuláris genetikus) Csóka Mónika Ottóffy Gábor Soltész Beáta (1987-) (molekuláris biológus) Balogh István (1972-) (molekuláris biológus, genetikus) Buglyó Gergely (1980-) (genetikus)
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Intézményi repozitóriumban (DEA) tárolt változat
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3.

001-es BibID:BIBFORM080605
035-os BibID:(cikkazonosító)E4119 (PMID)31450846 (scopus)85071765729 (wos)000486888400051
Első szerző:Dvorská, Dana
Cím:Aberrant Methylation Status of Tumour Suppressor Genes in Ovarian Cancer Tissue and Paired Plasma Samples / Dana Dvorská, Dušan Braný, Bálint Nagy, Marián Grendár , Robert Poka, Beáta Soltész, Marianna Jagelková, Katarína Zelinová, Zora Lasabová, Pavol Zubor, Zuzana Danková
Dátum:2019
ISSN:1661-6596 1422-0067
Megjegyzések:Ovarian cancer is a highly heterogeneous disease and its formation is affected by many epidemiological factors. It has typical lack of early signs and symptoms, and almost 70% of ovarian cancers are diagnosed in advanced stages. Robust, early and non-invasive ovarian cancer diagnosis will certainly be beneficial. Herein we analysed the regulatory sequence methylation profiles of the RASSF1, PTEN, CDH1 and PAX1 tumour suppressor genes by pyrosequencing in healthy, benign and malignant ovarian tissues, and corresponding plasma samples. We recorded statistically significant higher methylation levels (p < 0.05) in the CDH1 and PAX1 genes in malignant tissues than in controls (39.06 ? 18.78 versus 24.22 ? 6.93; 13.55 ? 10.65 versus 5.73 ? 2.19). Higher values in the CDH1 gene were also found in plasma samples (22.25 ? 14.13 versus 46.42 ? 20.91). A similar methylation pattern with positive correlation between plasma and benign lesions was noted in the CDH1 gene (r = 0.886, p = 0.019) and malignant lesions in the PAX1 gene (r = 0.771, p < 0.001). The random forest algorithm combining methylation indices of all four genes and age determined 0.932 AUC (area under the receiver operating characteristic (ROC) curve) prediction power in the model classifying malignant lesions and controls. Our study results indicate the effects of methylation changes in ovarian cancer development and suggest that the CDH1 gene is a potential candidate for non-invasive diagnosis of ovarian cancer.
Tárgyszavak:Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
liquid biopsy
pirosequencing
ovarian cancer
Megjelenés:International Journal of Molecular Sciences. - 20 : 17 (2019), p. 1-19. -
További szerzők:Braný, Dušan Nagy Bálint (1956-) (molekuláris genetikus) Grendar, Marian Póka Róbert (1960-) (szülész-nőgyógyász, klinikai onkológus) Soltész Beáta (1987-) (molekuláris biológus) Jagelková, Marianna Zelinová, Katarína Lasabova, Zora Zubor, Pavol Danková, Zuzana
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Intézményi repozitóriumban (DEA) tárolt változat
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4.

001-es BibID:BIBFORM080828
035-os BibID:(cikkazonosító)4533 (scopus)85072531584 (wos)000489100500212
Első szerző:Penyige András (molekuláris genetikus)
Cím:Circulating miRNA Profiling in Plasma Samples of Ovarian Cancer Patients / András Penyige, Éva Márton, Beáta Soltész, Melinda Szilágyi-Bónizs, Róbert Póka, János Lukács, Lajos Széles, Bálint Nagy
Dátum:2019
ISSN:1661-6596 1422-0067
Megjegyzések:Ovarian cancer is one of the most common cancer types in women characterized by a high mortality rate due to lack of early diagnosis. Circulating miRNAs besides being important regulators of cancer development could be potential biomarkers to aid diagnosis. We performed the circulating miRNA expression analysis in plasma samples obtained from ovarian cancer patients stratified into FIGO I, FIGO III, and FIGO IV stages and from healthy females using the NanoString quantitative assay. Forty-five miRNAs were di erentially expressed, out of these 17 miRNAs showed significantly di erent expression between controls and patients, 28 were expressed only in patients, among them 19 were expressed only in FIGO I patients. Di erentially expressed miRNAs were ranked by the network-based analysis to assess their importance. Target genes of the di erentially expressed miRNAs were identified then functional annotation of the target genes by the GO and KEGG-based enrichment analysis was carried out. A general and an ovary-specific protein?protein interaction network was constructed from target genes. Results of our network and the functional enrichment analysis suggest that besides HSP90AA1, MYC, SP1, BRCA1, RB1, CFTR, STAT3, E2F1, ERBB2, EZH2, and MET genes, additional genes which are enriched in cell cycle regulation, FOXO, TP53, PI-3AKT, AMPK, TGF , ERBB signaling pathways and in the regulation of gene expression, proliferation, cellular response to hypoxia, and negative regulation of the apoptotic process, the GO terms have central importance in ovarian cancer development. The aberrantly expressed miRNAs might be considered as potential biomarkers for the diagnosis of ovarian cancer after validation of these results in a larger cohort of ovarian cancer patients.
Tárgyszavak:Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
ovarian cancer
circulating miRNA
blood plasma
NanoString
network analysis
bimarker
Megjelenés:International Journal Of Molecular Sciences. - 20 : 18 (2019), p. E4533. -
További szerzők:Márton Éva (1992-) (biológus) Soltész Beáta (1987-) (molekuláris biológus) Szilágyi Melinda (1984-) (biológus) Póka Róbert (1960-) (szülész-nőgyógyász, klinikai onkológus) Lukács János (1975-) (szülész-nőgyógyász, genetikus) Széles Lajos (1971-) (molekuláris biológus) Nagy Bálint (1956-) (molekuláris genetikus)
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Intézményi repozitóriumban (DEA) tárolt változat
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5.

001-es BibID:BIBFORM099574
035-os BibID:(cikkazonosító)8 (scopus)85121366077 (wos)000751087400001
Első szerző:Soltész Beáta (molekuláris biológus)
Cím:The Role of Exosomes in Cancer Progression / Soltész Beáta, Buglyó Gergely, Németh Nikolett, Szilágyi Melinda, Pös Ondrej, Szemes Tomas, Balogh István, Nagy Bálint
Dátum:2022
ISSN:1661-6596 1422-0067
Megjegyzések:Early detection, characterization and monitoring of cancer are possible by using extracellular vesicles (EVs) isolated from non-invasively obtained liquid biopsy samples. They play a role in intercellular communication contributing to cell growth, differentiation and survival, thereby affecting the formation of tumor microenvironments and causing metastases. EVs were discovered more than seventy years ago. They have been tested recently as tools of drug delivery to treat cancer. Here we give a brief review on extracellular vesicles, exosomes, microvesicles and apoptotic bodies. Exosomes play an important role by carrying extracellular nucleic acids (DNA, RNA) in cell-to-cell communication causing tumor and metastasis development. We discuss the role of extracellular vesicles in the pathogenesis of cancer and their practical application in the early diagnosis, follow up, and next-generation treatment of cancer patients.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:International Journal Of Molecular Sciences. - 23 : 1 (2022), p. 1-19. -
További szerzők:Buglyó Gergely (1980-) (genetikus) Németh Nikolett (1995-) (biológus) Szilágyi Melinda (1984-) (biológus) Pös, Ondrej (1990-) (biológus) Szemes, Tomas (1980-) (biológus) Balogh István (1972-) (molekuláris biológus, genetikus) Nagy Bálint (1956-) (molekuláris genetikus)
Pályázati támogatás:Operational Programme Integrated Infrastructure for the project ITMS2014+
Egyéb
313011V446 European Regional Development Fund
Egyéb
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6.

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
Dátum:2020
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
folyóiratcikk
cell-free nucleic acids
nDNA
mtDNA
miRNA
lncRNA
circRNA
exosomes
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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