Photolon enhancement of ultrasound cytotoxicity

Exp Oncol. 2011 Jun;33(2):107-9.

Abstract

Objective: To evaluate the impact of Photolon on cytostatic and cytotoxic effects of therapeutic range ultrasound in C6 glioma cells.

Methods: C6 glioma cells in suspension or monolayer cell culture were exposed to ultrasound (880 kHz, 0.2-0.7 W/cm2) in the presence or absence of Photolon at the concentration of 1 μg/ml in the culture medium, and then cell viability was evaluated.

Results: Photolon increased the cytotoxic effect of ultrasound by 1.5-2.3-fold but had no effect on its cytostatic activity.

Conclusion: Photolon produces a pronounced sonosensitizing effect on glioma C6 cells and is a promising drug for sonodynamic treatment of malignant tumors.

MeSH terms

  • Animals
  • Antineoplastic Agents / pharmacology*
  • Brain Neoplasms / pathology
  • Brain Neoplasms / therapy*
  • Cell Survival
  • Chlorophyllides
  • Glioma / pathology
  • Glioma / therapy*
  • Porphyrins
  • Povidone / pharmacology*
  • Protoporphyrins / pharmacology*
  • Rats
  • Tumor Cells, Cultured
  • Ultrasonic Therapy

Substances

  • Antineoplastic Agents
  • Chlorophyllides
  • Porphyrins
  • Protoporphyrins
  • phytochlorin
  • Povidone