Establishing and maintaining cell polarity with mRNA localization in Drosophila

被引:11
作者
Barr, Justinn [1 ]
Yakovlev, Konstantin V. [2 ,3 ]
Shidlovskii, Yulii [2 ]
Schedl, Paul [1 ,2 ]
机构
[1] Princeton Univ, Dept Mol Biol, Princeton, NJ 08544 USA
[2] RAS, Inst Gene Biol, Lab Gene Express Regulat Dev, Moscow 117901, Russia
[3] RAS, FEB, Lab Cytotechnol, AV Zhirmunsky Inst Marine Biol, Vladivostok, Russia
关键词
aPKC; mRNA localization; orb2; Par proteins; polarity; spermatogenesis; stardust; C-ELEGANS EMBRYOS; PDZ-DOMAIN PROTEIN; EPITHELIAL POLARITY; APICAL LOCALIZATION; CAENORHABDITIS-ELEGANS; ANTERIOR-POSTERIOR; MICROTUBULE ORGANIZATION; CYTOPLASMIC LOCALIZATION; ASYMMETRIC LOCALIZATION; LOCAL TRANSLATION;
D O I
10.1002/bies.201500088
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
How cell polarity is established and maintained is an important question in diverse biological contexts. Molecular mechanisms used to localize polarity proteins to distinct domains are likely context-dependent and provide a feedback loop in order to maintain polarity. One such mechanism is the localized translation of mRNAs encoding polarity proteins, which will be the focus of this review and may play a more important role in the establishment and maintenance of polarity than is currently known. Localized translation of mRNAs encoding polarity proteins can be used to establish polarity in response to an external signal, and to maintain polarity by local production of polarity determinants. The importance of this mechanism is illustrated by recent findings, including orb2-dependent localized translation of aPKC mRNA at the apical end of elongating spermatid tails in the Drosophila testis, and the apical localization of stardust A mRNA in Drosophila follicle and embryonic epithelia.
引用
收藏
页码:244 / 253
页数:10
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