Apoptosis repressor with caspase recruitment domain (ARC) is expressed in cancer cells and localizes to nuclei

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Abstract

Apoptosis repressor with caspase recruitment domain is expressed at high levels in brain and myogenic tissues, consistent with a role to inhibit apoptosis in the terminally differentiated cells. Expression of ARC in cancers is not known. In this study, we reported that ARC was highly expressed in various non-myogenic and non-neurogenic human and rat cancer cell lines. Unexpectedly, ARC was localized almost exclusively to the nuclei of cancer cells, which was unlike the cytoplasmic localization of ARC in non-cancer cells. Furthermore, nuclear ARC in cancer cells did not co-localize with nucleolus protein of 30 kDa, an alternatively spliced ARC isoform. These findings indicate that ARC is distributed differently in cancer cells than non-cancer cells and thus might play a role in neoplastic transformation. © 2005 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.

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Wang, M., Qanungo, S., Crow, M. T., Watanabe, M., & Nieminen, A. L. (2005). Apoptosis repressor with caspase recruitment domain (ARC) is expressed in cancer cells and localizes to nuclei. FEBS Letters, 579(11), 2411–2415. https://doi.org/10.1016/j.febslet.2005.03.040

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