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ISSN: 2168-9547

Molecular Biology: Open Access
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Review Article

DNA Damage Induced by Ultrasound and Cellular Responses

Yukihiro Furusawa1,2* and Takashi Kondo1

1Department of Radiological Sciences, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Japan

2Department of Liberal Arts and Sciences, Toyama Prefectural University Toyama, Japan

*Corresponding Author:
Yukihiro Furusawa
Department of Liberal Arts and Sciences
Toyama Prefectural University, 5180, Kurokawa
Toyama 939-0398, Japan
Tel: +81-766-56-7500
Fax: +81-766-56-6117
E-mail: [email protected]

Received date: February 20, 2017; Accepted date: March 03, 2017; Published date: March 10, 2017

Citation: Furusawa Y, Kondo T (2017) DNA Damage Induced by Ultrasound and Cellular Responses. Mol Biol 6:188. doi:10.4172/2168-9547.1000188

Copyright: © 2017 Furusawa Y, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

Ultrasonic technologies pervade the medical field as a long established imaging modality in clinical diagnostics and, with the emergence of targeted high-intensity focused ultrasound, as a means of thermally ablating tumors. Ultrasound (US) causes multiple thermal and non-thermal effects, such as mechanical and chemical stresses, that can result in damage to the cellular membrane and nucleus, leading to transient membrane pores, alterations in gene expression, and cell death, including apoptosis. On the basis of its biological effects US has been proposed as a new drug delivery and molecular targeting tool for cancer therapy. However, the molecular mechanisms involved in USinduced cell killing are not yet fully understood. Recently, we have reported that the mechanical effects of US elicit DNA single strand as well as double strand breaking- the most cytotoxic form of DNA damage, which initiates subsequent DNA damage response associated with DNA repair, cell cycle arrest, and cell death. Here in the present study we have focused on one of the most significant biological effects of US, i.e., DNA damage and discussed the underlying mechanisms and a unique cellular response. In addition, we have described the characteristic DNA damage response induced by heat stress, which could have caused by the thermal effects of US. Moreover, the study will enrich the literature relevant to furthering our understanding of US for future applications in cancer therapy.

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