論文 - 詳細
| RRC ID | 86759 |
|---|---|
| 著者 | Mo ES, Cheng Q, Reshetnyak AV, Schlessinger J, Nicoli S. |
| タイトル | Alk and Ltk ligands are essential for iridophore development in zebrafish mediated by the receptor tyrosine kinase Ltk. |
| ジャーナル | Proc Natl Acad Sci U S A |
| Abstract |
Anaplastic lymphoma kinase (Alk) and leucocyte tyrosine kinase (Ltk) were identified as "orphan" receptor tyrosine kinases (RTKs) with oncogenic potential. Recently ALKAL1 and ALKAL2 (also named "augmentor-β" and "augmentor-α" or "FAM150A" and "FAM150B," respectively) were discovered as physiological ligands of Alk and Ltk. Here, we employ zebrafish as a model system to explore the physiological function and to characterize in vivo links between Alk and Ltk with their ligands. Unlike the two ligands encoded by mammalian genomes, the zebrafish genome contains three genes: aug-α1, aug-α2, and aug-β Our experiments demonstrate that these ligands play an important role in zebrafish pigment development. Deficiency in aug-α1, aug-α2, and aug-β results in strong impairment in iridophore patterning of embryonic and adult zebrafish that is phenocopied in zebrafish deficient in Ltk. We show that aug-α1 and aug-α2 are essential for embryonic iridophore development and adult body coloration. In contrast, aug-α2 and aug-β are essential for iridophore formation in the adult eye. Importantly, these processes are entirely mediated by Ltk and not by Alk. These experiments establish a physiological link between augmentor ligands and Ltk and demonstrate that particular augmentors activate Ltk in a tissue-specific context to induce iridophore differentiation from neural crest-derived cells and pigment progenitor cells. |
| 巻・号 | 114(45) |
| ページ | 12027-12032 |
| 公開日 | 2017-11-7 |
| DOI | 10.1073/pnas.1710254114 |
| PII | 1710254114 |
| PMID | 29078341 |
| PMC | PMC5692561 |
| MeSH | Amino Acid Sequence Anaplastic Lymphoma Kinase Animals Cell Differentiation / genetics Eye / metabolism Genome / genetics Ligands Neural Crest / physiology Receptor Protein-Tyrosine Kinases / genetics* Retinal Pigments / genetics Stem Cells / physiology Zebrafish / genetics* Zebrafish / physiology |
| IF | 9.412 |
| オルトメトリクス指標 |
オルトメトリクス指標項目
|
| 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 | |
| ゼブラフィッシュ | UAS:GFP |