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001-es BibID:	BIBFORM055181
035-os BibID:	PMID: 25097723 Article ID: 976394
Első szerző:	Bányai Emese (orvos)
Cím:	Novel functional changes during podocyte differentiation : increase of oxidative resistance and H-ferritin expression / Emese Bányai, Enikő Balogh, Miklós Fagyas, Paolo Arosio, Zoltán Hendrik, Gábor Király, Gábor Nagy, Bence Tánczos, István Pócsi, György Balla, József Balla, Gáspár Bánfalvi, Viktória Jeney
Dátum:	2014
ISSN:	1942-0900 1942-0994
Megjegyzések:	Podocytes are highly specialized, arborized epithelial cells covering the outer surface of the glomerular tuft in the kidney. Terminally differentiated podocytes are unable to go through cell division and hereby they are lacking a key property for regeneration after a toxic injury. Podocytes are long-lived cells but, to date, little is known about the mechanisms that support their stress resistance. Our aim was to investigate whether the well-known morphological changes during podocyte differentiation are accompanied by changes in oxidative resistance in a manner that could support their long-term survival. We used a conditionally immortalized human podocyte cell line to study the morphological and functional changes during differentiation. We followed the differentiation process for 14 days by time-lapse microscopy. During this period nondifferentiated podocytes gradually transformed into large, nonproliferating, frequently multinucleated cells, with enlarged nuclei and opened chromatin structure. We observed that differentiated podocytes were highly resistant to oxidants such as H2O2 and heme when applied separately or in combination, whereas undifferentiated cells were prone to such challenges. Elevated oxidative resistance of differentiated podocytes was associated with increased activities of antioxidant enzymes and H-ferritin expression. Immunohistochemical analysis of normal human kidney specimens revealed that podocytes highly express H-ferritin in vivo as well.
Tárgyszavak:	Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:	Oxidative Medicine and Cellular Longevity 2014 (2014), p. 1-10. -
További szerzők:	Balogh Enikő (1987-) (molekuláris biológus) Fagyas Miklós (1984-) (orvos) Arosio, Paolo Hendrik Zoltán (1986-) (orvos) Király Gábor (1988-) (biológus) Szemán-Nagy Gábor (1975-) (biológia tanár-molekuláris biológus) Tánczos Bence (1987-) (biológus) Pócsi István (1961-) (vegyész) Balla György (1953-) (csecsemő és gyermekgyógyász, neonatológus) Balla József (1959-) (belgyógyász, nephrológus) Bánfalvi Gáspár (1943-) (sejtbiológus, gyógyszerész) Jeney Viktória (1971-) (vegyész, kémia tanár)
Pályázati támogatás:	TÁMOP-4.2.2.A-11/1/KONV-2012-0045 TÁMOP Belgyógyászat Kutatócsoport TÁMOP-4.2.4.A/2-11-1-2012-0001 TÁMOP OTKA-K83478 OTKA
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