Study of influence of catechins on bystander responses in alpha-particle radiobiological experiments using thin PADC films

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

6 Scopus Citations
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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)1069-1072
Journal / PublicationRadiation Measurements
Volume44
Issue number9-10
Publication statusPublished - Oct 2009

Abstract

In this study, Chinese hamster ovary (CHO) cells were cultured in custom-made petri dishes with thin PADC films as substrates. Alpha particles with energies of 5 MeV were then irradiated from the bottom of PADC films. The DNA strand breaks in the bystander cells induced by irradiation were quantified with the use of terminal dUTP transferase-mediated nick end-labeling (TUNEL) assay. To study the influence of catechins on the bystander responses, catechins were added into the medium before alpha-particle irradiation of the cells. Fewer DNA strand breaks in the bystander cells were observed. As catechins are ROS (reactive oxygen species)-scavengers, the studied bystander cells might have been protected from radiation through scavenging of ROS by catechins. © 2009 Elsevier Ltd. All rights reserved.

Research Area(s)

  • Alpha-particle, Bystander effect, Catechins, TUNEL