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001-es BibID:	BIBFORM095934
Első szerző:	Buglyó Gergely (genetikus)
Cím:	miRNA Profiling of Hungarian Regressive Wilms' Tumor Formalin-Fixed Paraffin-Embedded (FFPE) Samples by Quantitative Real-Time Polymerase Chain Reaction (RT-PCR) / Gergely Buglyó, Zsófia Magyar, Éva Romicsné Görbe, Rita Bánusz, Monika Csóka, Tamás Micsik, Márta Mezei, Jaxi Ayman Shawky Yani, Péter Varga, Zoltán Sápi, Bálint Nagy
Dátum:	2021
ISSN:	1643-3750
Megjegyzések:	Background: Wilms' tumor is a common renal malignancy of early childhood with a generally favorable prognosis depending upon histological subtype. It is becoming increasingly clear that differences in miRNA (microRNA) expression signature represent important clues helping us predict a tumor's response to chemotherapy. In our study, we aimed to reveal miRNAs deregulated in regressive Wilms' tumors from FFPE (formalin-fixed, paraffin-embedded) samples, also showing whether such samples are reliable miRNA sources in Wilms' tumor. Material/Methods: Samples from 8 Hungarian patients (3 males, 5 females, aged 1 to 7 years) were analyzed by qRT-PCR (quantitative real-time PCR). A PCR array was used in a pilot experiment, and selected miRNAs (miR-128-3p, miR-184, miR-194-5p, miR-203a) were studied in the rest of the samples using individual primers. Results: miR-194-5p was underexpressed in all tumor samples. miR-184 and miR-203a were underexpressed in 7 cases, the exception being a case with a high ratio of necrotic blastemal tissue. Results obtained with miR-1283p are difficult to interpret due to varying directions of expression changes. Conclusions: We conclude that a downregulation of miR-184, miR-194-5p, and miR-203a expression is observed in both regressive and blastemal tumors, but larger-scale studies are needed to confirm whether the degree of their underexpression correlates with the number of blastemal elements in a sample. In most of our FFPE samples aged up to 9 years, RNA extraction provided miRNA with quantity and quality sufficient for qRT-PCR-based analysis, emphasizing the relevance of pathological archives as miRNA sources in future studies.
Tárgyszavak:	Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk MIRN184 microRNA Human MIRN194 microRNAHuman MIRN203 Human microRNA Real-Time Polymerase Chain Reaction Wilms Tumor
Megjelenés:	Medical Science Monitor. - 27 (2021), p. e932731-1-e932731-9. -
További szerzők:	Magyar Zsófia Görbe Éva Bánusz Rita Csóka Mónika Micsik Tamás Mezei Márta Yani, Jaxi Ayman Shawky Varga Péter (szülész-nőgyógyász) Sápi Zoltán Nagy Bálint (1956-) (molekuláris genetikus)
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001-es BibID:	BIBFORM065209
Első szerző:	Magyar Zsófia
Cím:	Expression of VEGF in Neonatal Urinary Obstruction : does Expression of VEGF Predict Hydronephrosis? / Zsófia Magyar, Julianna Schönleber, Miklós Romics, Ervin Hruby, Bálint Nagy, Bálint Sulya F., Artúr Beke, Ágnes Harmath, Judit Jeager, János Rigó jr., Éva Görbe
Dátum:	2015
ISSN:	1234-1010
Megjegyzések:	In animal studies, the inhibition of VEGF activity results in high mortality and impaired renal and glomerular development. Mechanical stimuli, like mechanical stretch in respiratory and circulatory systems, results in an elevated expression of VEGF. In animal models, the experimental urinary obstruction is associated with stretching of tubular cells and activations of the renin-angiotensin system. This results in the upregulation of vascular endothelial growth factor (VEGF) and TNF-alfa.Material/Methods:Tissue samples from urinary tract obstruction were collected and immunohistochemistry was performed in 14 patients (average age: 7.1?4.1 years). The control histology group consisted of ureteropelvic junction tissue from 10 fetuses after midtrimester artificial abortion. The fetuses did not have any failure at ultrasound screening and pathological examination. The mean gestational age was 20.6 weeks of gestation (?2.2SD). Expression of VEGF was detected with immunohistochemistry method.Results:Expression of VEGF was found in varying intensity in the submucosa and subserosa layers, but only in the test tissue (placental tissue). The tissue of the patients with urinary obstruction and the tissue of the fetal ureteropelvic junction without urinary obstruction were negative for expression of VEGF. The repeated examination showed negative cells and no color staining.Conclusions:The pressure due to congenital urogenital obstruction resulting in mechanical stress in cells did not increase the expression of VEGF in young children in our study. To find a correlation between urogenital tract obstruction and increased expression of VEGF, we need to perform more examinations because the connection may be of therapeutic significance.
Tárgyszavak:	Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban endothelial growth factor urinary tract Hydronephros
Megjelenés:	Medical Science Monitor 21 (2015), p. 1319-1323. -
További szerzők:	Schönléber J. Romics Miklós Hruby Ervin Nagy Bálint (1956-) (molekuláris genetikus) Sulya Bálint F. Beke Artúr (szülész-nőgyógyász) Harmath Ágnes Jeager Judit Rigó János (1958-) (szülész-nőgyógyász) Görbe Éva
Internet cím:	Intézményi repozitóriumban (DEA) tárolt változat
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