Antiproliferative effect of α-mangostin on canine osteosarcoma cells

Aungkana Krajarng1, Sirinun Nilwarankoon, Sunit Suksamrarn

  • 1Department of Biochemistry, Faculty of Medicine, Srinakharinwirot University, Bangkok, Thailand.

Insights

Alpha-mangostin, a compound from mangosteen, effectively inhibits canine osteosarcoma cell growth. This natural compound induces apoptosis, offering a potential cost-effective and less toxic treatment for canine bone cancer.

Area of Science:

  • Veterinary Oncology
  • Pharmacology
  • Natural Product Chemistry

Background:

  • Osteosarcoma is the most common primary bone tumor in dogs.
  • Current chemotherapeutics for canine osteosarcoma are limited by high cost and severe toxicity.
  • There is a need for cost-effective and less toxic therapeutic options.

Purpose of the Study:

  • To investigate the anti-cancer effects of alpha-mangostin, a xanthone derivative from Garcinia mangostana Linn. (mangosteen).
  • To evaluate the potential of alpha-mangostin as a therapeutic agent for canine osteosarcoma.

Main Methods:

  • The study utilized the D-17 cell line, a canine osteosarcoma model.
  • Assays included antiproliferation (IC50 determination), Hoechst 33342 nuclear staining, DNA-gel electrophoresis, cell cycle analysis, phosphatidylserine flipping assay, and mitochondrial membrane potential assessment.

Main Results:

  • Alpha-mangostin demonstrated significant antiproliferative effects against D-17 cells with an IC50 of 15 μg/ml.
  • Morphological and biochemical analyses indicated that alpha-mangostin induces apoptosis, characterized by nuclear condensation, fragmentation, and a sub-G1 cell cycle peak.
  • The compound also induced phosphatidylserine externalization and loss of mitochondrial membrane potential, further supporting apoptotic cell death.

Conclusions:

  • Alpha-mangostin effectively induces apoptotic cell death in canine osteosarcoma D-17 cells.
  • Alpha-mangostin shows promise as a potential candidate for preventive and therapeutic applications in treating canine bone cancer.
  • Further research into alpha-mangostin could lead to novel, cost-effective, and safer treatments for canine osteosarcoma.

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