論文 - 詳細
| RRC ID | 88194 |
|---|---|
| 著者 | O'Neill AK, Kindberg AA, Niethamer TK, Larson AR, Ho HH, Greenberg ME, Bush JO. |
| タイトル | Unidirectional Eph/ephrin signaling creates a cortical actomyosin differential to drive cell segregation. |
| ジャーナル | J Cell Biol |
| Abstract |
Cell segregation is the process by which cells self-organize to establish developmental boundaries, an essential step in tissue formation. Cell segregation is a common outcome of Eph/ephrin signaling, but the mechanisms remain unclear. In craniofrontonasal syndrome, X-linked mosaicism for ephrin-B1 expression has been hypothesized to lead to aberrant Eph/ephrin-mediated cell segregation. Here, we use mouse genetics to exploit mosaicism to study cell segregation in the mammalian embryo and integrate live-cell imaging to examine the underlying cellular and molecular mechanisms. Our data demonstrate that dramatic ephrin-B1-mediated cell segregation occurs in the early neuroepithelium. In contrast to the paradigm that repulsive bidirectional signaling drives cell segregation, unidirectional EphB kinase signaling leads to cell sorting by the Rho kinase-dependent generation of a cortical actin differential between ephrin-B1- and EphB-expressing cells. These results define mechanisms of Eph/ephrin-mediated cell segregation, implicating unidirectional regulation of cortical actomyosin contractility as a key effector of this fundamental process. |
| 巻・号 | 215(2) |
| ページ | 217-229 |
| 公開日 | 2016-10-24 |
| DOI | 10.1083/jcb.201604097 |
| PII | jcb.201604097 |
| PMID | 27810913 |
| PMC | PMC5084648 |
| MeSH | Actins / metabolism Actomyosin / metabolism* Animals Cell Count Cell Differentiation* Embryo, Mammalian / cytology Embryo, Mammalian / metabolism Ephrin-B1 / metabolism* Green Fluorescent Proteins / metabolism HEK293 Cells Humans Mice Models, Biological Neuroepithelial Cells / cytology* Neuroepithelial Cells / metabolism Receptors, Eph Family / metabolism* Signal Transduction* rho-Associated Kinases / metabolism |
| IF | 8.811 |
| オルトメトリクス指標 |
オルトメトリクス指標項目
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| 最多言及媒体 | X(Twitter) |
| 各媒体での言及数の合計 | 10 |
| 過去6か月間でのオルトメトリクス指標の変動値 | 0.0 |
| リソース情報 | |
| 実験動物マウス | RBRC01294 |