Article
ROS-generating mitochondrial DNA mutations can regulate tumor cell metastasis.
Science (New York, N.Y.) - 2 May 2008
Ishikawa Kaori, Takenaga Keizo, Akimoto Miho, Koshikawa Nobuko, Yamaguchi Aya, Imanishi Hirotake, Nakada Kazuto, Honma Yoshio, Hayashi Jun-Ichi
Abstract excerpt
Mutations in mitochondrial DNA (mtDNA) occur at high frequency in human tumors, but whether these mutations alter tumor cell behavior has been unclear. We used cytoplasmic hybrid (cybrid) technology to replace the endogenous mtDNA in a mouse tumor cell line that was poorly metastatic with mtDNA from a cell line that was highly metastatic, and vice versa. Using assays of metastasis in mice, we found that the...
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