Artemether attenuates LPS-induced inflammatory bone loss by inhibiting osteoclastogenesis and bone resorption via

Haobo Wu1,2, Bin Hu1,2, Xiaopeng Zhou1,2

  • 1Department of Orthopedic Surgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, China.

Cell Death & Disease
|April 29, 2018
PubMed

Insights

Artemether, a malaria drug, effectively suppresses osteoclast formation and bone erosion by inhibiting key signaling pathways. This natural compound shows potential for treating bone loss disorders.

Area of Science:

  • Biochemistry
  • Pharmacology
  • Osteology

Background:

  • Osteolysis involves increased osteoclast activity and bone erosion, necessitating treatments that inhibit osteoclast differentiation and function.
  • Artemether, derived from Artemisia annua L., is primarily known for its antimalarial properties.

Purpose of the Study:

  • To investigate artemether's potential to suppress osteoclastogenesis and mitigate inflammatory bone loss.
  • To elucidate the molecular mechanisms underlying artemether's effects on osteoclasts.

Main Methods:

  • Assessing artemether's impact on RANKL-induced osteoclastogenesis and marker gene expression in vitro.
  • Evaluating artemether's inhibition of osteoclastic bone resorption and MAPKs (ERK, JNK, p-38) activity.
  • Testing artemether's efficacy in a murine model of LPS-induced inflammatory bone loss.

Main Results:

  • Artemether suppressed RANKL-induced osteoclastogenesis and key osteoclast marker genes.
  • The compound inhibited osteoclastic bone resorption and attenuated RANKL-induced MAPKs activation.
  • Artemether mitigated bone erosion in a murine model of inflammatory bone loss.

Conclusions:

  • Artemether reduces inflammatory bone loss by inhibiting MAPKs activation during osteoclast differentiation.
  • Artemether demonstrates potential as a therapeutic agent for osteoclast-related bone disorders.

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