The polarity protein Dlg5 regulates collective cell migration during Drosophila oogenesis

The polarity protein Dlg5 regulates collective cell migration during Drosophila oogenesis
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极性蛋白 Dlg5 调节果蝇卵子发生过程中的集体细胞迁移

DOI:
10.1371/journal.pone.0226061
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发表时间:
2019-12
期刊:
影响因子:
3.7
通讯作者:
Chen Jiong
Chen Jiong
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Luo Jun;Zhou Ping;Guo Xuan;Wang Dou;Chen Jiong

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集体迁移在动物发育、生理事件和癌症转移中起着关键作用。然而,集体细胞迁移的分子机制还不是很清楚。果蝇边缘细胞是研究细胞集体迁移和寻找新的细胞迁移调控基因的良好体内遗传模型。利用镶嵌分析和可抑制细胞标记(MARCM)系统,我们筛选了240个P元件插入系,以确定与边界细胞迁移有关的必需基因。发现了两个基因,包括dlg5(Diss Large 5)和CG31689。进一步的分析表明,Dlg5调节边缘细胞簇的顶基极性和簇的完整性。Dlg5在边缘细胞和中央极细胞之间的侧面丰富,但在边缘细胞之间也显示点状定位。我们发现Dlg5在边界细胞团中的分布受Armadillo的调节。结构-功能分析表明,Dlg5的N端螺旋线圈结构域和C端PDZ3-PDZ4-SH3-GUK结构域是BC迁移所必需的,而PDZ1-PDZ2结构域不是BC迁移所必需的。螺旋线圈结构域和PDZ4-SH3-GUK结构域对于Dlg5‘S细胞在边缘细胞团中的表面定位是至关重要的。
Collective migration plays critical roles in animal development, physiological events, and cancer metastasis. However, the molecular mechanisms of collective cell migration are not well understood. Drosophila border cells represent an excellent in vivo genetic model to study collective cell migration and identify novel regulatory genes for cell migration. Using the Mosaic Analysis with a Repressible Cell Marker (MARCM) system, we screened 240 P-element insertion lines to identify essential genes for border cell migration. Two genes were uncovered, including dlg5 (discs large 5) and CG31689. Further analysis showed that Dlg5 regulates the apical-basal polarity and cluster integrity in border cell clusters. Dlg5 is enriched in lateral surfaces between border cells and central polar cells but also shows punctate localization between border cells. We found that the distribution of Dlg5 in border cell clusters is regulated by Armadillo. Structure-function analysis revealed that the N-terminal Coiled-coil domain and the C-terminal PDZ3-PDZ4-SH3-GUK domains but not the PDZ1-PDZ2 domains of Dlg5 are required for BC migration. The Coiled-coil domain and the PDZ4-SH3-GUK domains are critical for Dlg5’s cell surface localization in border cell clusters.
DOI: 10.1101/gad.252676.114
发表时间: 2015-02-01
影响因子: 10.5
作者:
Chong YC;Mann RK;Zhao C;Kato M;Beachy PA
通讯作者: Beachy PA
DOI: 10.1016/j.cub.2008.03.029
发表时间: 2008-04-08
期刊: CURRENT BIOLOGY
影响因子: 9.2
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影响因子: 10.5
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DOI: 10.1387/ijdb.12141438
发表时间: 2002
期刊: The International journal of developmental biology
影响因子: --
作者:
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通讯作者: G. Caruana
DOI: 10.1080/19336934.2019.1664363
发表时间: 2019-04
期刊: bioRxiv
影响因子: --
作者:
Lauren J Putnam;Ashley M Willes;Brooke E. Kalata;Nathaniel D. Disher;Douglas J. Brusich
通讯作者: Lauren J Putnam;Ashley M Willes;Brooke E. Kalata;Nathaniel D. Disher;Douglas J. Brusich