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Journal of Chinese Pharmaceutical Sciences ›› 2016, Vol. 25 ›› Issue (7): 535-545.DOI: 10.5246/jcps.2016.07.059

• Original articles • Previous Articles     Next Articles

Comparison of effects on bone mesenchymal stem cells differentiation between lanthanum and gadolinium under high phosphate condition

Caixia Yu, Jiao Gong, Jian Huang*, Tianlan Zhang, Kui Wang   

  1. Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, China
  • Received:2016-03-28 Revised:2016-04-25 Online:2016-07-19 Published:2016-05-17
  • Contact: Tel.: +86-010-62015584, +86-010-82801539, E-mail: jhuang@bjmu.edu.cn, yucaixia0105@163.com

Abstract:

Lanthanum (La) and gadolinium (Gd) have been used in clinical diagnosis and treatment. The application of La and Gd in medication may cause accumulation of the elements in bone. Whether the similar physicochemical properties of these two Lanthanides (Lns) will lead to similar biological effects on bone metabolism in patients with severe kidney failureare key concerns of researchers.This study compared the influences of LaCl3 and GdCl3 on in vitro differentiation of bone mesenchymal stem cells (BMSCs) in high phosphate (Pi) medium. The results showed that LaCl3 inhibited high Pi-induced BMSC differentiation at higher concentration and stimulated BMSC differentiation-related genes at lower concentration, while GdCl3 promoted high Pi-induced BMSC differentiation. The emergence of insoluble Ln-containing calcium phosphate (CaP) was implicated in the process of LaCl3 or GdCl3 mediated osteogenic differentiation.The small differences in atomic number of La and Gd causedthe more promotive effect of GdCl3on the precipitation of CaP compared with LaCl3.Moreover, the content of serum proteins coprecipitated in Gd-containing particles was decreased compared with La-containing particles, leading to larger particle size of Gd-containing particles.The study demonstrated that those distinct physicochemical propertiesof Gd-containing particlesvs. La-containing particlesplayed an important role in modulatingthe different effects of GdCl3and LaCl3on BMSC differentiation.

Key words: Lanthanum, Gadolinium, High phosphate, Differentiation

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