Open Access

Estradiol‑enhanced osteogenesis of rat bone marrow stromal cells is associated with the JNK pathway

  • Authors:
    • Nan Song
    • Zhi‑Min Wang
    • Li‑Juan He
    • Yan Xu
    • Yan‑Ling Ren
  • View Affiliations

  • Published online on: October 3, 2017     https://doi.org/10.3892/mmr.2017.7699
  • Pages:8589-8594
  • Copyright: © Song et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

Metrics: PDF 0 views | HTML 0 views
0

Abstract

Bone marrow stromal cells (BMSCs) can differentiate into osteoblasts. The present study investigated the osteogenic effects of estradiol, as well as the role of the c‑Jun N‑terminal kinase (JNK) signaling pathway in promoting estradiol‑enhanced osteogenesis of rat (r)BMSCs. rBMSCs were treated for 7 days with or without estradiol and further treated with or without the JNK‑specific inhibitor SP600125. The role of estrogen during rBMSC osteogenesis was evaluated by alkaline phosphatase activity and mineralized nodule formation using the Gomori method and Alizarin red S staining, respectively. Subsequently, the mRNA expression levels of transforming growth factor-β1 (TGF‑β1) and core‑binding factor α1 (Cbfα1) were evaluated by reverse transcription‑quantitative polymerase chain reaction, and TGF‑β1, Cbfα1 and phosphorylated (p)‑JNK protein expression was detected by western blotting. All groups treated with SP600125 expressed low levels of TGF‑β1 and Cbfα1 mRNA and protein, and low p‑JNK protein expression. Compared with the control cells, rBMSCs cultured with estradiol exhibited a significant upregulation in the expression levels of osteogenic genes and proteins. The present study demonstrated that estradiol enhanced osteogenic differentiation of rBMSCs and that the JNK signaling pathway was involved in this process, providing insights into the molecular mechanisms involved in rBMSC osteogenesis upon estradiol stimulation.

Related Articles

Journal Cover

December 2017
Volume 16 Issue 6

Print ISSN: 1791-2997
Online ISSN:1791-3004

2016 Impact Factor: 1.692
Ranked #19/128 Medicine Research and Experimental
(total number of cites)

Sign up for eToc alerts

Recommend to Library

Copy and paste a formatted citation
APA
Song, N., Wang, Z., He, L., Xu, Y., & Ren, Y. (2017). Estradiol‑enhanced osteogenesis of rat bone marrow stromal cells is associated with the JNK pathway. Molecular Medicine Reports, 16, 8589-8594. https://doi.org/10.3892/mmr.2017.7699
MLA
Song, N., Wang, Z., He, L., Xu, Y., Ren, Y."Estradiol‑enhanced osteogenesis of rat bone marrow stromal cells is associated with the JNK pathway". Molecular Medicine Reports 16.6 (2017): 8589-8594.
Chicago
Song, N., Wang, Z., He, L., Xu, Y., Ren, Y."Estradiol‑enhanced osteogenesis of rat bone marrow stromal cells is associated with the JNK pathway". Molecular Medicine Reports 16, no. 6 (2017): 8589-8594. https://doi.org/10.3892/mmr.2017.7699