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001-es BibID:	BIBFORM064412
035-os BibID:	(scopus)84976324555 (wos)000381535900025
Első szerző:	Balogh Enikő (molekuláris biológus)
Cím:	Osteogenic differentiation of human lens epithelial cells might contribute to lens calcification / Enikő Balogh, Andrea Tóth, Emese Tolnai, Tímea Bodó, Emese Bányai, Dóra Júlia Szabó, Goran Petrovski, Viktória Jeney
Dátum:	2016
ISSN:	0006-3002
Megjegyzések:	Calcification of the human lens has been described in senile cataracts and in young patients with congenital cataractor chronic uveitis. Lens calcification is also a major complication of cataract surgery and plays a role in theopacification of intraocular lenses. A cell-mediated process has been suggested in the background of lens calcification,but so far the exact mechanism remained unexplored. Lens calcification shares remarkable similaritieswith vascular calcification; in both pathological processes hydroxyapatite accumulates in the soft tissue. Vascularcalcification is a regulated, cell-mediated process in which vascular cells undergo osteogenic differentiation. Ourobjective was to investigate whether human lens epithelial cells (HuLECs) can undergo osteogenic transitionin vitro, and whether this process contributes to lens calcification. We used inorganic phosphate (Pi) and Ca tostimulate osteogenic differentiation of HuLECs. Osteogenic stimuli (2.5 mmol/L Pi and 1.2 mmol/L Ca) inducedextracellular matrix mineralization and Ca deposition in HuLECswith the critical involvement of active Pi uptake.Osteogenic stimuli almost doubled mRNA expressions of osteo-/chondrogenic transcription factors Runx2 andSox9, which was accompanied by a 1.9-fold increase in Runx2 and a 5.5-fold increase in Sox9 protein expressions.Osteogenic stimuli induced mRNA and protein expressions of alkaline phosphatase and osteocalcin in HuLEC. Cacontentwas higher in human cataractous lenses, compared to non-cataractous controls (n=10). Osteocalcin, anosteoblast-specific protein, was expressed in 2 out of 10 cataractous lenses.We conclude that osteogenic stimuliinduce osteogenic differentiation of HuLECs and propose that this mechanism might play a role in lenscalcification.
Tárgyszavak:	Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk Human lens epithelial cells Osteogenic differentiation Calcification Cataract Aging disease
Megjelenés:	Biochimica et Biophysica Acta (BBA). Molecular Basis of Disease. - 1862 : 9 (2016), p. 1724-1731. -
További szerzők:	Tóth Andrea (1992-) (molekuláris biológus) Szilágyi-Tolnai Emese (1988-) (Molekuláris biológus) Bodó Timea Bányai Emese (1984-) (orvos) Szabó Dóra Júlia (1985-) (Ph.D hallgató) Petrovski, Goran (1975-) (orvos) Jeney Viktória (1971-) (vegyész, kémia tanár)
Pályázati támogatás:	K116024 OTKA RH/751-2/2015 Egyéb 4.2.2.A/2-11-1-2012-0001 TÁMOP KTIA_NAP_12-A_III/9 Egyéb
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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