RRC ID 6848
著者 Harumoto T, Ito M, Shimada Y, Kobayashi TJ, Ueda HR, Lu B, Uemura T.
タイトル Atypical cadherins Dachsous and Fat control dynamics of noncentrosomal microtubules in planar cell polarity.
ジャーナル Dev Cell
Abstract How global organ asymmetry and individual cell polarity are connected to each other is a central question in studying planar cell polarity (PCP). In the Drosophila wing, which develops PCP along its proximal-distal (P-D) axis, we previously proposed that the core PCP mediator Frizzled redistributes distally in a microtubule (MT)-dependent manner. Here, we performed organ-wide analysis of MT dynamics by introducing quantitative in vivo imaging. We observed MTs aligning along the P-D axis at the onset of redistribution and a small but significant excess of + ends-distal MTs in the proximal region of the wing. This characteristic alignment and asymmetry of MT growth was controlled by atypical cadherins Dachsous (Ds) and Fat (Ft). Furthermore, the action of Ft was mediated in part by PAR-1. All these data support the idea that the active reorientation of MT growth adjusts cell polarity along the organ axis.
巻・号 19(3)
ページ 389-401
公開日 2010-9-14
DOI 10.1016/j.devcel.2010.08.004
PII S1534-5807(10)00379-5
PMID 20817616
PMC PMC2951474
MeSH Animals Cadherins / physiology* Cell Adhesion Molecules / physiology* Cell Polarity* Drosophila Proteins / physiology* Drosophila melanogaster / embryology* Drosophila melanogaster / genetics Gene Expression Regulation, Developmental / physiology Glycogen Synthase Kinase 3 Microtubules / metabolism* Morphogenesis Protein Serine-Threonine Kinases / physiology Signal Transduction Subcellular Fractions Wings, Animal / embryology Wings, Animal / metabolism
IF 10.092
引用数 101
WOS 分野 DEVELOPMENTAL BIOLOGY CELL BIOLOGY
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