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Journal of Chinese Pharmaceutical Sciences ›› 2014, Vol. 23 ›› Issue (11): 772-777.DOI: 10.5246/jcps.2014.11.098

• Original articles • Previous Articles     Next Articles

The involvement of signaling activation of protein kinase C in gadolinium chloride-induced cell survival and cell cycle progression in NIH3T3 cells

Min Feng, Jinxia Li, Xiaojie Ma,Yunzhou Fan, Jingxuan Wu, Qun Zeng, Xiaogai Yang*   

  1. Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, China
  • Received:2014-05-20 Revised:2014-05-29 Online:2014-11-24 Published:2014-06-06
  • Contact: Tel.: 86-10-82805956
  • Supported by:
    National Natural Science Foundation of China (Grant No. 21277006 and 20637010).

Abstract:

In the present study, we investigated the activation of protein kinase C (PKC) family in mouse embryonic fibroblast NIH3T3 cells using gadolinium chloride as a representative lanthanide ion. With live cell imaging system and confocal laser scanning microscopy, we found that the treatment of 50 μM GdCl3 promoted cell survival under the condition of serum-starvation. Moreover, better cell attachment and cytoskeleton reorganization were also observed. Additionally, GdCl3 treatment resulted in the phosphorylation of PKC family at different time points. Furthermore, bisindolylmaleimide (a PKCpan inhibitor) could efficiently reduce the level of phosphorylated PKCpan (βIISer660), alleviating ERK activation induced by GdCl3. This finding indicated that the PKC activation was involved in GdCl3-induced MAPK/ERK signaling and thus might contribute to GdCl3-induced cell cycle progression and cell survival.

Key words: Gadolinium chloride, Cell cycle, Protein kinase C, Cytoskeleton, ERK, NIH3T3 cells

CLC Number: 

Supporting: