Effect of radiation on the expression of osteoclast marker genes in RAW264.7 cells

  • Authors:
    • Bing Yang
    • Hui Zhou
    • Xiao-Dong Zhang
    • Zheng Liu
    • Fei-Yue Fan
    • Yuan-Ming Sun
  • View Affiliations

  • Published online on: January 25, 2012     https://doi.org/10.3892/mmr.2012.765
  • Pages: 955-958
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Abstract

Cancer radiation therapy can cause skeletal complications, such as osteopenia and osteoporosis. To understand the mechanism responsible for the skeletal complications, the expression profiles of osteoclast marker genes in RAW264.7 cells were observed. Osteoclast formation was established by RAW264.7 cells that were treated with the receptor activator of nuclear factor (NF)-κB ligand (RANKL) and detected using immunochemistry and morphological observations. Quantitative real-time polymerase chain reaction was used to assess the expression of a panel of osteoclast markers, including the receptor activator of NF-κB (RANK), tartrate-resistant acid phosphatase (TRAP), integrin β3 and the calcitonin receptor (CTR). RANKL-induced osteoclasts were TRAP-positive and multinucleated, and displayed a distinct morphology. RANKL-induced osteoclast precursor cells had increased TRAP and RANK expression and decreased CTR expression compared to the control cells not treated with RANKL. RAW264.7 cells irradiated with 2-Gy γ-rays had upregulated integrin β3 and RANK expression and downregulated CTR expression compared to the control RAW264.7 cells. The effect of radiation on RANKL-induced osteoclast differentiation enhanced the expression of CTR and inhibited the expression of RANK and TRAP. Therefore, radiation damage from 2-Gy γ-rays can promote the activities of osteoclast precursor cells, but not those of osteoclasts.
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April 2012
Volume 5 Issue 4

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

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Spandidos Publications style
Yang B, Zhou H, Zhang X, Liu Z, Fan F and Sun Y: Effect of radiation on the expression of osteoclast marker genes in RAW264.7 cells. Mol Med Rep 5: 955-958, 2012.
APA
Yang, B., Zhou, H., Zhang, X., Liu, Z., Fan, F., & Sun, Y. (2012). Effect of radiation on the expression of osteoclast marker genes in RAW264.7 cells. Molecular Medicine Reports, 5, 955-958. https://doi.org/10.3892/mmr.2012.765
MLA
Yang, B., Zhou, H., Zhang, X., Liu, Z., Fan, F., Sun, Y."Effect of radiation on the expression of osteoclast marker genes in RAW264.7 cells". Molecular Medicine Reports 5.4 (2012): 955-958.
Chicago
Yang, B., Zhou, H., Zhang, X., Liu, Z., Fan, F., Sun, Y."Effect of radiation on the expression of osteoclast marker genes in RAW264.7 cells". Molecular Medicine Reports 5, no. 4 (2012): 955-958. https://doi.org/10.3892/mmr.2012.765