Title |
A microtubule-organizing center directing intracellular transport in the early mouse embryo
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Published in |
Science, September 2017
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DOI | 10.1126/science.aam9335 |
Pubmed ID | |
Authors |
J Zenker, M D White, R M Templin, R G Parton, O Thorn-Seshold, S Bissiere, N Plachta |
Abstract |
The centrosome is the primary microtubule-organizing center (MTOC) of most animal cells; however, this organelle is absent during early mammalian development. Therefore, the mechanism by which the mammalian embryo organizes its microtubules (MTs) is unclear. We visualize MT bridges connecting pairs of cells and show that the cytokinetic bridge does not undergo stereotypical abscission after cell division. Instead, it serves as scaffold for the accumulation of the MT minus-end-stabilizing protein CAMSAP3 throughout interphase, thereby transforming this structure into a noncentrosomal MTOC. Transport of the cell adhesion molecule E-cadherin to the membrane is coordinated by this MTOC and is required to form the pluripotent inner mass. Our study reveals a noncentrosomal form of MT organization that directs intracellular transport and is essential for mammalian development. |
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Geographical breakdown
Country | Count | As % |
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United States | 13 | 27% |
Japan | 3 | 6% |
Australia | 3 | 6% |
Germany | 2 | 4% |
Spain | 2 | 4% |
Canada | 1 | 2% |
Netherlands | 1 | 2% |
France | 1 | 2% |
United Kingdom | 1 | 2% |
Other | 1 | 2% |
Unknown | 20 | 42% |
Demographic breakdown
Type | Count | As % |
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Members of the public | 33 | 69% |
Scientists | 14 | 29% |
Science communicators (journalists, bloggers, editors) | 1 | 2% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Unknown | 215 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Ph. D. Student | 44 | 20% |
Researcher | 34 | 16% |
Student > Master | 27 | 13% |
Student > Bachelor | 17 | 8% |
Student > Doctoral Student | 12 | 6% |
Other | 32 | 15% |
Unknown | 49 | 23% |
Readers by discipline | Count | As % |
---|---|---|
Agricultural and Biological Sciences | 70 | 33% |
Biochemistry, Genetics and Molecular Biology | 58 | 27% |
Engineering | 8 | 4% |
Neuroscience | 5 | 2% |
Chemistry | 5 | 2% |
Other | 18 | 8% |
Unknown | 51 | 24% |