Nerolidol induced apoptosis via PI3K/JNK regulation through cell cycle arrest in MG-63 osteosarcoma cells

Yang Yu1, Periyannan Velu2, Yulong Ma3

  • 1Department of Traumatic Joint Surgery, 3201 Hospital, Hanzhong, China.

Insights

Nerolidol effectively inhibited osteosarcoma cell growth by inducing oxidative stress and apoptosis. This natural compound also caused cell cycle arrest, showing potential as a bone cancer therapeutic.

Area of Science:

  • Biochemistry
  • Molecular Biology
  • Cancer Research

Background:

  • Osteosarcoma is a primary bone cancer with limited treatment options.
  • Natural compounds are being investigated for their anti-cancer properties.

Purpose of the Study:

  • To investigate the effects of nerolidol on osteosarcoma MG-63 cells.
  • To analyze cell proliferation, apoptosis, and cell cycle arrest mechanisms induced by nerolidol.

Main Methods:

  • Osteosarcoma MG-63 cells were treated with nerolidol (15 and 20 μM/ml).
  • Assays included MTT for proliferation, DCFH-DA for ROS, Rh-123 for mitochondrial potential, AO/EtBr, PI, DAPI staining for apoptosis, and Western blot/RT-PCR for protein/mRNA expression.
  • Cell cycle analysis was performed using flow cytometry.

Main Results:

  • Nerolidol significantly suppressed osteosarcoma cell proliferation in a dose-dependent manner.
  • Nerolidol induced oxidative stress, altered mitochondrial potential, and triggered apoptotic morphological changes.
  • Nerolidol regulated apoptosis-related proteins (Bax, Bcl-2) and kinases (ERK, P38, JNK) and arrested cells in the G0/G1 phase via the PI3K/AKT pathway.

Conclusions:

  • Nerolidol exhibits potent anti-cancer effects against osteosarcoma cells.
  • Nerolidol acts through induction of oxidative stress, apoptosis, and cell cycle arrest.
  • Nerolidol shows promise as a potential chemotherapeutic agent for bone cancer.

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