Influences of LaCl3 on the mineral phase transformation during osteoblast mineralization in vitro

Rat calvarial osteoblasts were treated with lanthanum chloride(LaCl3) to explore its effect on the mineral crystalline phase during the process of osteoblast calcification in uitro.The results confirmed that La was readily deposited in the mineral component of the matrix.Employing high-resolution tr...

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Veröffentlicht in:Journal of environmental sciences (China) 2017, Vol.51 (1), p.88-96
Hauptverfasser: Yu, Caixia, Gong, Jiao, Yin, Fu-ling, Huang, Jian, Zhang, Tian-lan, Wang, Kui
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container_issue 1
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container_title Journal of environmental sciences (China)
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creator Yu, Caixia
Gong, Jiao
Yin, Fu-ling
Huang, Jian
Zhang, Tian-lan
Wang, Kui
description Rat calvarial osteoblasts were treated with lanthanum chloride(LaCl3) to explore its effect on the mineral crystalline phase during the process of osteoblast calcification in uitro.The results confirmed that La was readily deposited in the mineral component of the matrix.Employing high-resolution transmission electron microscopy and Fourier transform infrared microspectroscopy techniques,we demonstrated that features comparable to dicalcium phosphate dihydrate(DCPD) and octacalcium phosphate,and hydroxyapatite(HAP) were detected in the mineral phases in uitro.Particularly,LaCl3 treatment retarded conversion from DCPD-like phase into HAP during mineralization.In addition,La was introduced in DCPD powder during wet chemical synthesis.When compared with that of La-free DCPD,the dissolution rate of La-incorporated DCPD was lower,thereby leading to a delayed DCPD-to-HAP phase transformation.Thus,it can be concluded that LaCl3 treatment influences the kinetics of inorganic phase transition by decreasing the dissolution rate of DCPD.
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subjects DCPD
Dicalcium phosphate dehydrate
LaCl3
Lanthanum
Mineralization
Osteoblasts
Transformation
体外
成骨细胞
氯化镧
矿化过程
矿物相变
高分辨透射电子显微镜
title Influences of LaCl3 on the mineral phase transformation during osteoblast mineralization in vitro
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