A Regulatory Switch Alters Chromosome Motions at the Metaphase-to-Anaphase Transition
To achieve chromosome segregation during mitosis, sister chromatids must undergo a dramatic change in their behavior to switch from balanced oscillations at the metaphase plate to directed poleward motion during anaphase. However, the factors that alter chromosome behavior at the metaphase-to-anapha...
| मुख्य लेखकों: | , , , , , |
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| अन्य लेखक: | |
| स्वरूप: | लेख |
| भाषा: | en_US |
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Elsevier
2017
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| ऑनलाइन पहुंच: | http://hdl.handle.net/1721.1/107423 https://orcid.org/0000-0002-6199-6855 https://orcid.org/0000-0001-8844-7170 https://orcid.org/0000-0002-3829-5612 |
| _version_ | 1826208956778807296 |
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| author | Su, Kuan-Chung Schweizer, Nina Maiato, Helder Bathe, Mark Barry, Zachary Thomas Cheeseman, Iain M |
| author2 | Massachusetts Institute of Technology. Department of Biological Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Biological Engineering Su, Kuan-Chung Schweizer, Nina Maiato, Helder Bathe, Mark Barry, Zachary Thomas Cheeseman, Iain M |
| author_sort | Su, Kuan-Chung |
| collection | MIT |
| description | To achieve chromosome segregation during mitosis, sister chromatids must undergo a dramatic change in their behavior to switch from balanced oscillations at the metaphase plate to directed poleward motion during anaphase. However, the factors that alter chromosome behavior at the metaphase-to-anaphase transition remain incompletely understood. Here, we perform time-lapse imaging to analyze anaphase chromosomedynamics in human cells. Using multiple directed biochemical, genetic, and physical perturbations, our results demonstrate that differences in the global phosphorylation states between metaphase and anaphase are the major determinant of chromosome motion dynamics. Indeed, causing a mitotic phosphorylation state to persist into anaphase produces dramatic metaphase-like oscillations. These induced oscillations depend on both kinetochore-derived and polar ejection forces that oppose poleward motion. Thus, our analysis of anaphase chromosome motion reveals that dephosphorylation of multiple mitotic substrates is required to suppress metaphase chromosome oscillatory motions and achieve directed poleward motion for successful chromosome segregation. |
| first_indexed | 2024-09-23T14:15:06Z |
| format | Article |
| id | mit-1721.1/107423 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T14:15:06Z |
| publishDate | 2017 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | mit-1721.1/1074232022-10-01T20:08:38Z A Regulatory Switch Alters Chromosome Motions at the Metaphase-to-Anaphase Transition Su, Kuan-Chung Schweizer, Nina Maiato, Helder Bathe, Mark Barry, Zachary Thomas Cheeseman, Iain M Massachusetts Institute of Technology. Department of Biological Engineering Massachusetts Institute of Technology. Department of Biology Bathe, Mark Barry, Zachary Thomas Cheeseman, Iain M To achieve chromosome segregation during mitosis, sister chromatids must undergo a dramatic change in their behavior to switch from balanced oscillations at the metaphase plate to directed poleward motion during anaphase. However, the factors that alter chromosome behavior at the metaphase-to-anaphase transition remain incompletely understood. Here, we perform time-lapse imaging to analyze anaphase chromosomedynamics in human cells. Using multiple directed biochemical, genetic, and physical perturbations, our results demonstrate that differences in the global phosphorylation states between metaphase and anaphase are the major determinant of chromosome motion dynamics. Indeed, causing a mitotic phosphorylation state to persist into anaphase produces dramatic metaphase-like oscillations. These induced oscillations depend on both kinetochore-derived and polar ejection forces that oppose poleward motion. Thus, our analysis of anaphase chromosome motion reveals that dephosphorylation of multiple mitotic substrates is required to suppress metaphase chromosome oscillatory motions and achieve directed poleward motion for successful chromosome segregation. National Institute of General Medical Sciences (U.S.) (GM088313) National Science Foundation (U.S.) (PoLS PHY 1305537) Leukemia & Lymphoma Society of America Marie Curie/Erwin Schrodinger Fellowship of the Austrian Science Fund (J-3478) American Cancer Society (121776) European Research Council FLAD Life Science 2020 Fondation Louis-Jeantet 2017-03-15T19:22:37Z 2017-03-15T19:22:37Z 2016-11 2016-09 Article http://purl.org/eprint/type/JournalArticle 22111247 http://hdl.handle.net/1721.1/107423 Su, Kuan-Chung, Zachary Barry, Nina Schweizer, Helder Maiato, Mark Bathe, and Iain McPherson Cheeseman. “A Regulatory Switch Alters Chromosome Motions at the Metaphase-to-Anaphase Transition.” Cell Reports 17, no. 7 (November 2016): 1728–1738. https://orcid.org/0000-0002-6199-6855 https://orcid.org/0000-0001-8844-7170 https://orcid.org/0000-0002-3829-5612 en_US http://dx.doi.org/10.1016/j.celrep.2016.10.046 Cell Reports Creative Commons Attribution-NonCommercial-NoDerivs License http://creativecommons.org/licenses/by-nc-nd/4.0/ application/pdf Elsevier Elsevier |
| spellingShingle | Su, Kuan-Chung Schweizer, Nina Maiato, Helder Bathe, Mark Barry, Zachary Thomas Cheeseman, Iain M A Regulatory Switch Alters Chromosome Motions at the Metaphase-to-Anaphase Transition |
| title | A Regulatory Switch Alters Chromosome Motions at the Metaphase-to-Anaphase Transition |
| title_full | A Regulatory Switch Alters Chromosome Motions at the Metaphase-to-Anaphase Transition |
| title_fullStr | A Regulatory Switch Alters Chromosome Motions at the Metaphase-to-Anaphase Transition |
| title_full_unstemmed | A Regulatory Switch Alters Chromosome Motions at the Metaphase-to-Anaphase Transition |
| title_short | A Regulatory Switch Alters Chromosome Motions at the Metaphase-to-Anaphase Transition |
| title_sort | regulatory switch alters chromosome motions at the metaphase to anaphase transition |
| url | http://hdl.handle.net/1721.1/107423 https://orcid.org/0000-0002-6199-6855 https://orcid.org/0000-0001-8844-7170 https://orcid.org/0000-0002-3829-5612 |
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