Ultrasound-induced apoptosis in the presence of Sonazoid and associated alterations in gene expression levels: A possible therapeutic application

Yukihiro Furusawa, Qing Li Zhao, Mariame Ali Hassan, Yoshiaki Tabuchi, Ichiro Takasaki, Shigehito Wada, Takashi Kondo

研究成果: Article査読

36 被引用数 (Scopus)

抄録

Ultrasound (US) has been shown to induce apoptosis and cell lysis in cancer cells. In this study, we report on the potential of using Sonazoid, a new echo-contrast agent, that is chemically more stable and US-resistant in combination with US in cancer therapy. The biological effects and their mechanisms in the presence or absence of ultrasonic exposure in vitro were investigated. In addition, the impact of the agent on the expression levels of genes responsive to US was studied using global-scale microarrays and computational gene expression analysis tools. Our results show that the combination led to enhanced cell killing in the presence of 1 MHz acoustic field. The apoptosis induction was shown to be mediated by the mitochondrial pathway. The occurrence of US-induced DNA damage was also observed. Despite these findings, the agent at concentrations similar to those clinically used can be considered as well tolerated. Furthermore, Sonazoid enhanced expression of genes that related to apoptosis and are responsive to US, although it alone had almost no effect. These results indicate the potential of Sonazoid for US contrast enhancement as well as the possibility of its use in US-aided therapies.

本文言語English
ページ(範囲)107-115
ページ数9
ジャーナルCancer Letters
288
1
DOI
出版ステータスPublished - 2010 2月 1
外部発表はい

ASJC Scopus subject areas

  • 腫瘍学
  • 癌研究

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