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Chinese Journal of Geriatric Orthopaedics and Rehabilitation(Electronic Edition) ›› 2018, Vol. 04 ›› Issue (01): 4-8. doi: 10.3877/cma.j.issn.2096-0263.2018.01.002

Special Issue:

• Osteoporosis • Previous Articles     Next Articles

Effects and optimum concentration of zoledronate on RAW264.7

Lukai Zhang1, Jianxiong Ma2, Jie Zhao2, Mingjie Kuang2, Bin Lu2, Ying Wang2, Lei Sun2, Xinlong Ma3,()   

  1. 1. Orthopedics institute of Tianjin Hospital, Tianjin 300211, China; Graduate school of Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China
    2. Orthopedics institute of Tianjin Hospital, Tianjin 300211, China
    3. Orthopedics institute of Tianjin Hospital, Tianjin 300211, China; Tianjin Hospital, Tianjin 300142, China
  • Received:2017-04-01 Online:2018-02-05 Published:2018-02-05
  • Contact: Xinlong Ma
  • About author:
    Corresponding author: Ma Xinlong, Email:

Abstract:

Objective

To further observe the concentration range of zoledronate on RAW264.7 cell toxic effect and confirm the optimum concentration in inhibition of RAW264.7 differentiation of osteoclast.

Methods

Mouse leukemia macro phage RAW264.7 was cultured as research object. RAW264.7 osteoclast toxic effect of zoledronate was detected by MTT method. Inhibition of osteoclast differentiation by different concentration of zoledronate were detected by tartrate-resistant acid phosphatase staining method.

Results

After 24 h vitro culture, Enzyme-linked immunosorbent assay absorbance indicated that 10-3 mol/L (0.511±0.920), 10-4 mol/L (0.615±0.577) concentrations of zoledronate had significantly toxic effects on cells compared with the blank control group (0.789±0.061)(F=5.880, P<0.01). TRAP staining osteoclast count indicated that 10-5 mol/L (8.333±0.817), 10-6 mol/L (10.400±1.817), 10-7 mol/L (11.250±2.750) and 10-8 mol/L (11.143±1.864) concentrations of zoledronate all significantly inhibited RAW264.7 differentiation compared with the blank control group (F=27.972, P<0.05), showing concentration dependence, 10-5 mol/L zoledronate had the highest inhabitation effect (P<0.01).

Conclusion

Zoledronate can effectively inhibit RAW264.7 differentiation, and the optimum concentration in vitro is 10-5 mol/L.

Key words: Zoledronic acid, Osteoclast, Cell differentiation, Cytotoxicity, RAW264.7

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