Open Access

Calcium chelator BAPTA‑AM protects against iron overload‑induced chondrocyte mitochondrial dysfunction and cartilage degeneration

  • Authors:
    • Xingzhi Jing
    • Qiang Wang
    • Ting Du
    • Weimin Zhang
    • Xiaoyang Liu
    • Qiang Liu
    • Tao Li
    • Guodong Wang
    • Feifei Chen
    • Xingang Cui
  • View Affiliations

  • Published online on: August 31, 2021     https://doi.org/10.3892/ijmm.2021.5029
  • Article Number: 196
  • Copyright: © Jing et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

Metrics: Total Views: 0 (Spandidos Publications: | PMC Statistics: )
Total PDF Downloads: 0 (Spandidos Publications: | PMC Statistics: )


Abstract

Osteoarthritis (OA) is a common joint disease that is characterized by cartilage degradation. Iron deposition in the joints is common during the pathogenic progression of OA and recent studies have indicated that iron overload is an important contributor to OA progression. Calcium chelators have been reported to inhibit iron influx via modulating transferrin receptor protein 1 internalization, and they have been identified as a potential approach to the treatment of iron overload‑induced diseases. The aim of the present study was to investigate the effect of calcium chelators on the progression of iron overload‑induced OA. Primary chondrocytes were treated with various concentrations of ferric ammonium citrate (FAC) to mimic iron overload in vitro, followed by co‑treatment with the calcium chelator BAPTA acetoxymethyl ester (BAPTA‑AM). Subsequently, intracellular iron levels, cell viability, reactive oxygen species (ROS) levels, mitochondrial function and morphological changes, as well as MMP levels, were detected using commercial kits. It was demonstrated that FAC treatment significantly promoted chondrocyte apoptosis and the expression of MMPs, and these effects were reversed by co‑treatment with BAPTA‑AM. Moreover, BAPTA‑AM suppressed iron influx into chondrocytes and inhibited iron overload‑induced ROS production and mitochondrial dysfunction. These results indicated that calcium chelators may be of value in the treatment of iron metabolism‑related diseases and iron overload‑induced OA progression.
View Figures
View References

Related Articles

Journal Cover

October-2021
Volume 48 Issue 4

Print ISSN: 1107-3756
Online ISSN:1791-244X

Sign up for eToc alerts

Recommend to Library

Copy and paste a formatted citation
x
Spandidos Publications style
Jing X, Wang Q, Du T, Zhang W, Liu X, Liu Q, Li T, Wang G, Chen F, Cui X, Cui X, et al: Calcium chelator BAPTA‑AM protects against iron overload‑induced chondrocyte mitochondrial dysfunction and cartilage degeneration. Int J Mol Med 48: 196, 2021
APA
Jing, X., Wang, Q., Du, T., Zhang, W., Liu, X., Liu, Q. ... Cui, X. (2021). Calcium chelator BAPTA‑AM protects against iron overload‑induced chondrocyte mitochondrial dysfunction and cartilage degeneration. International Journal of Molecular Medicine, 48, 196. https://doi.org/10.3892/ijmm.2021.5029
MLA
Jing, X., Wang, Q., Du, T., Zhang, W., Liu, X., Liu, Q., Li, T., Wang, G., Chen, F., Cui, X."Calcium chelator BAPTA‑AM protects against iron overload‑induced chondrocyte mitochondrial dysfunction and cartilage degeneration". International Journal of Molecular Medicine 48.4 (2021): 196.
Chicago
Jing, X., Wang, Q., Du, T., Zhang, W., Liu, X., Liu, Q., Li, T., Wang, G., Chen, F., Cui, X."Calcium chelator BAPTA‑AM protects against iron overload‑induced chondrocyte mitochondrial dysfunction and cartilage degeneration". International Journal of Molecular Medicine 48, no. 4 (2021): 196. https://doi.org/10.3892/ijmm.2021.5029