Disconnected circadian and cell cycles in a tumor-driven cell line

Cell division occurs at a specific time of day in numerous species, suggesting that the circadian and cell cycles are coupled in vivo. By measuring the cell cycle rhythm in real-time, we recently showed that the circadian and cell cycles are not coupled in immortalized fibroblasts, resulting in a ra...

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Main Authors: Julie S. Pendergast, Mijung Yeom, Bryan A. Reyes, Yoshihiro Ohmiya, Shin Yamazaki
Format: Article
Language:English
Published: Taylor & Francis Group 2010-11-01
Series:Communicative & Integrative Biology
Online Access:https://www.tandfonline.com/doi/10.4161/cib.3.6.12841
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author Julie S. Pendergast
Mijung Yeom
Bryan A. Reyes
Yoshihiro Ohmiya
Shin Yamazaki
author_facet Julie S. Pendergast
Mijung Yeom
Bryan A. Reyes
Yoshihiro Ohmiya
Shin Yamazaki
author_sort Julie S. Pendergast
collection DOAJ
description Cell division occurs at a specific time of day in numerous species, suggesting that the circadian and cell cycles are coupled in vivo. By measuring the cell cycle rhythm in real-time, we recently showed that the circadian and cell cycles are not coupled in immortalized fibroblasts, resulting in a rapid rate of cell division even though the circadian rhythm is normal in these cells. Here we report that tumor-driven Lewis Lung Carcinoma (LLC) cells have perfectly temperature compensated circadian clocks, but the periods of their cell cycle gene expression rhythms are temperature-dependent, suggesting that their circadian and cell cycles are not connected. These data support our hypothesis that decoupling of the circadian and cell cycles may underlie aberrant cell division in tumor cells.
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spelling doaj.art-1d11b6c5b0b34b91b306c384c04657c22023-09-15T13:06:45ZengTaylor & Francis GroupCommunicative & Integrative Biology1942-08892010-11-013653653910.4161/cib.3.6.12841Disconnected circadian and cell cycles in a tumor-driven cell lineJulie S. Pendergast0Mijung Yeom1Bryan A. Reyes2Yoshihiro Ohmiya3Shin Yamazaki4Department of Biological Sciences, Vanderbilt University, Nashville, TN USADepartment of Biological Sciences, Vanderbilt University, Nashville, TN USADepartment of Biological Sciences, Vanderbilt University, Nashville, TN USABioproduction Research Institute, National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki JapanDepartment of Biological Sciences, Vanderbilt University, Nashville, TN USACell division occurs at a specific time of day in numerous species, suggesting that the circadian and cell cycles are coupled in vivo. By measuring the cell cycle rhythm in real-time, we recently showed that the circadian and cell cycles are not coupled in immortalized fibroblasts, resulting in a rapid rate of cell division even though the circadian rhythm is normal in these cells. Here we report that tumor-driven Lewis Lung Carcinoma (LLC) cells have perfectly temperature compensated circadian clocks, but the periods of their cell cycle gene expression rhythms are temperature-dependent, suggesting that their circadian and cell cycles are not connected. These data support our hypothesis that decoupling of the circadian and cell cycles may underlie aberrant cell division in tumor cells.https://www.tandfonline.com/doi/10.4161/cib.3.6.12841
spellingShingle Julie S. Pendergast
Mijung Yeom
Bryan A. Reyes
Yoshihiro Ohmiya
Shin Yamazaki
Disconnected circadian and cell cycles in a tumor-driven cell line
Communicative & Integrative Biology
title Disconnected circadian and cell cycles in a tumor-driven cell line
title_full Disconnected circadian and cell cycles in a tumor-driven cell line
title_fullStr Disconnected circadian and cell cycles in a tumor-driven cell line
title_full_unstemmed Disconnected circadian and cell cycles in a tumor-driven cell line
title_short Disconnected circadian and cell cycles in a tumor-driven cell line
title_sort disconnected circadian and cell cycles in a tumor driven cell line
url https://www.tandfonline.com/doi/10.4161/cib.3.6.12841
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