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Updated: May 9, 2026
09:45
Photodynamic Therapy with Blended Conducting Polymer/Fullerene Nanoparticle Photosensitizers
Published on: October 28, 2015
Sonodynamically-induced anticancer effects by functionalized fullerenes.
Nagahiko Yumita1, Yumiko Iwase, Takahiro Imaizumi
1Yokohama College of Pharmacy, 601, Matano-cho, Totsuka-ku, Yokohama, Kanagawa 245-0066, Japan. n.yumita@hamayaku.ac.jp
Anticancer Research
|July 31, 2013
Summary
Polyhydroxy fullerenes (PHF) enhance ultrasound therapy by generating reactive oxygen species, leading to significant tumor destruction. This study shows PHF is a promising sonosensitizer for treating solid tumors.
Area of Science:
- Biomedical Engineering
- Nanomedicine
- Cancer Therapy
Background:
- Functionalized fullerenes, like polyhydroxy fullerenes (PHF), are water-soluble carbon nanomaterials with potential in tumor imaging and therapy.
- PHF's unique properties make it a candidate for novel cancer treatment strategies.
Purpose of the Study:
- To investigate the sonodynamically-induced antitumor effect of polyhydroxy fullerenes (PHF).
- To evaluate PHF as a potential sonosensitizer for cancer therapy.
Main Methods:
- Investigated sonodynamically-induced antitumor effects of PHF combined with ultrasound.
- Utilized isolated sarcoma 180 cells and solid tumors from colon 26 carcinoma cells for experiments.
- Assessed cell damage and tumor growth inhibition.
Main Results:
- PHF (80 μM) enhanced sonication-induced cell damage twofold, an effect inhibited by histidine, suggesting reactive oxygen species (ROS) mediation.
- Combined ultrasound and PHF treatment suppressed colon 26 tumor growth.
- Significant tumor tissue destruction was observed with combined treatment, unlike monotherapy.
Conclusions:
- Polyhydroxy fullerenes (PHF) act as effective sonosensitizers.
- PHF combined with ultrasound shows potential for sonodynamic cancer therapy of solid tumors.
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