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The positioning and segregation of apical cues during epithelial polarity establishment in Drosophila

Journal Article · · Journal of Cell Biology
 [1];  [2]
  1. Univ. of North Carolina, Chapel Hill, NC (United States). Dept. of Biology; DOE/OSTI
  2. Univ. of North Carolina, Chapel Hill, NC (United States). Dept. of Biology; Univ. of North Carolina, Chapel Hill, NC (United States). Lineberger Comprehensive Cancer Center
Cell polarity is critical for epithelial structure and function. Adherens junctions (AJs) often direct this polarity, but we previously found that Bazooka (Baz) acts upstream of AJs as epithelial polarity is first established in Drosophila. This prompted us to ask how Baz is positioned and how downstream polarity is elaborated. Surprisingly, we found that Baz localizes to an apical domain below its typical binding partners atypical protein kinase C (aPKC) and partitioning defective (PAR)-6 as the Drosophila epithelium first forms. In fact, Baz positioning is independent of aPKC and PAR-6 relying instead on cytoskeletal cues, including an apical scaffold and dynein-mediated basal-to-apical transport. AJ assembly is closely coupled to Baz positioning, whereas aPKC and PAR-6 are positioned separately. This forms a stratified apical domain with Baz and AJs localizing basal to aPKC and PAR-6, and we identify specific mechanisms that keep these proteins apart. These results reveal key steps in the assembly of the apical domain in Drosophila.
Research Organization:
Univ. of North Carolina, Chapel Hill, NC (United States)
Sponsoring Organization:
National Institutes of Health (NIH); USDOE Office of Science (SC), Biological and Environmental Research (BER). Biological Systems Science Division
OSTI ID:
1625135
Journal Information:
Journal of Cell Biology, Journal Name: Journal of Cell Biology Journal Issue: 5 Vol. 170; ISSN 0021-9525
Publisher:
Rockefeller University PressCopyright Statement
Country of Publication:
United States
Language:
English

References (50)

Crumbs, a Component of the Apical Membrane, Is Required for Zonula Adherens Formation in Primary Epithelia ofDrosophila journal July 1996
Sequential Roles of Cdc42, Par-6, aPKC, and Lgl in the Establishment of Epithelial Polarity during Drosophila Embryogenesis journal June 2004
Echinoid Is a Component of Adherens Junctions That Cooperates with DE-Cadherin to Mediate Cell Adhesion journal April 2005
The dynein microtubule motor journal March 2000
Asymmetric cell division: fly neuroblast meets worm zygote journal February 2001
Actin-dependent membrane association of a Drosophila epithelial APC protein and its effect on junctional Armadillo journal November 2000
Cell polarity: the PARty expands journal January 2001
Adaptation of core mechanisms to generate cell polarity journal April 2003
Drosophila Atypical Protein Kinase C Associates with Bazooka and Controls Polarity of Epithelia and Neuroblasts journal September 2000
Apical, Lateral, and Basal Polarization Cues Contribute to the Development of the Follicular Epithelium during Drosophila Oogenesis journal November 2000
Drosophila aPKC regulates cell polarity and cell proliferation in neuroblasts and epithelia journal December 2003
DaPKC-dependent phosphorylation of Crumbs is required for epithelial cell polarity in Drosophila journal August 2004
Biogenesis of N-Cadherin-dependent Cell-Cell Contacts in Living Fibroblasts Is a Microtubule-dependent Kinesin-driven Mechanism journal January 2002
Fractionation of the Epithelial Apical Junctional Complex: Reassessment of Protein Distributions in Different Substructures journal February 2005
Interaction of Par-6 and Crumbs complexes is essential for photoreceptor morphogenesis in Drosophila journal September 2003
The Drosophila genes crumbs and stardust are involved in the biogenesis of adherens junctions journal March 1996
Specification of the anteroposterior axis in Caenorhabditis elegans journal May 1996
Atypical protein kinase C cooperates with PAR-3 to establish embryonic polarity in Caenorhabditis elegans journal September 1998
PAR-6 is a conserved PDZ domain-containing protein that colocalizes with PAR-3 in Caenorhabditis elegans embryos journal January 1999
Mutations affecting the pattern of the larval cuticle inDrosophila melanogaster: III. Zygotic loci on the X-chromosome and fourth chromosome journal January 1984
Mutations affecting the pattern of the larval cuticle inDrosophila melanogaster: I. Zygotic loci on the second chromosome journal January 1984
Integrin-Mediated Activation of Cdc42 Controls Cell Polarity in Migrating Astrocytes through PKCζ journal August 2001
Drosophila PAR-1 and 14-3-3 Inhibit Bazooka/PAR-3 to Establish Complementary Cortical Domains in Polarized Cells journal December 2003
Complete Polarization of Single Intestinal Epithelial Cells upon Activation of LKB1 by STRAD journal February 2004
The dynein microtubule motor journal March 2000
Asymmetric cell division: fly neuroblast meets worm zygote journal February 2001
Intercellular junctions and cellular polarity: the PAR–aPKC complex, a conserved core cassette playing fundamental roles in cell polarity journal October 2001
Actin-dependent membrane association of a Drosophila epithelial APC protein and its effect on junctional Armadillo journal November 2000
A Conserved Oligomerization Domain in Drosophila Bazooka/PAR-3 Is Important for Apical Localization and Epithelial Polarity journal August 2003
C. elegans PAR Proteins Function by Mobilizing and Stabilizing Asymmetrically Localized Protein Complexes journal May 2004
ZEN-4/MKLP1 Is Required to Polarize the Foregut Epithelium journal June 2004
Cortical Flows Powered by Asymmetrical Contraction Transport PAR Proteins to Establish and Maintain Anterior-Posterior Polarity in the Early C. elegans Embryo journal September 2004
A mammalian PAR-3–PAR-6 complex implicated in Cdc42/Rac1 and aPKC signalling and cell polarity journal July 2000
DmPAR-6 directs epithelial polarity and asymmetric cell division of neuroblasts in Drosophila journal December 2000
Dynein binds to β-catenin and may tether microtubules at adherens junctions journal September 2001
Par-3 controls tight junction assembly through the Rac exchange factor Tiam1 journal February 2005
The golgin Lava lamp mediates dynein-based Golgi movements during Drosophila cellularization journal May 2005
Interactions between the crumbs, lethal giant larvae and bazooka pathways in epithelial polarization journal December 2002
Integrated activity of PDZ protein complexes regulates epithelial polarity journal December 2002
Parsing the Polarity Code journal March 2004
Cytoplasmic Dynein Is Required for the Nuclear Attachment and Migration of Centrosomes during Mitosis in Drosophila journal August 1999
Dynein-Mediated Cargo Transport in Vivo: A Switch Controls Travel Distance journal March 2000
Myosin and the PAR proteins polarize microfilament-dependent forces that shape and position mitotic spindles in Caenorhabditis elegans journal April 2003
p120 catenin associates with kinesin and facilitates the transport of cadherin–catenin complexes to intercellular junctions journal November 2003
Adherens junction-dependent and -independent steps in the establishment of epithelial cell polarity in Drosophila journal October 2004
Composition and Formation of Intercellular Junctions in Epithelial Cells journal December 2002
Epithelial Cell Polarity and Cell Junctions in Drosophila journal December 2001
aPKC kinase activity is required for the asymmetric differentiation of the premature junctional complex during epithelial cell polarization journal September 2002
C. elegans PAR Proteins Function by Mobilizing and Stabilizing Asymmetrically Localized Protein Complexes text January 2004
Adherens junction-dependent and -independent steps in the establishment of epithelial cell polarity in Drosophila text January 2004

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Cell–Cell Contact: Cooperating Clusters of Actin and Cadherin journal August 2008
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The Drosophila afadin homologue Canoe regulates linkage of the actin cytoskeleton to adherens junctions during apical constriction journal July 2009
Dynamics of adherens junctions in epithelial establishment, maintenance, and remodeling journal March 2011
The adherens junction–associated LIM domain protein Smallish regulates epithelial morphogenesis journal January 2018
Microtubules promote intercellular contractile force transmission during tissue folding journal June 2019
Abl suppresses cell extrusion and intercalation during epithelium folding journal September 2016
Phosphorylation and dephosphorylation of Ser852 and Ser889 control clustering, localization, and function of PAR-3 posted_content January 2020
Expression of Par3 polarity protein correlates with poor prognosis in ovarian cancer journal November 2016
Microtubule-dependent apical restriction of recycling endosomes sustains adherens junctions during morphogenesis of the Drosophila tracheal system journal January 2015
Cdc42 defines apical identity and regulates epithelial morphogenesis by promoting apical recruitment of Par6-aPKC and Crumbs journal August 2019
The Drosophila MAST kinase Drop out is required to initiate membrane compartmentalisation during cellularisation and regulates dynein-based transport journal June 2014
Correction: Shot and Patronin polarise microtubules to direct membrane traffic and biogenesis of microvilli in epithelia journal July 2017
Dynein Regulates Epithelial Polarity and the Apical Localization of stardust A mRNA journal January 2008
A Modifier Screen for Bazooka/PAR-3 Interacting Genes in the Drosophila Embryo Epithelium journal April 2010
The Par-PrkC Polarity Complex Is Required for Cilia Growth in Zebrafish Photoreceptors journal August 2014
Partial Functional Diversification ofDrosophila melanogasterSeptin GenesSep2andSep5 journal July 2016
LKB1 and AMPK maintain epithelial cell polarity under energetic stress text January 2007
Development and Cell Polarity of the C. elegans Intestine book April 2012
Crumbs is an essential regulator of cytoskeletal dynamics and cell-cell adhesion during dorsal closure in Drosophila journal November 2015
Dynein-mediated transport and membrane trafficking control PAR3 polarised distribution journal January 2019
Adherens Junction and E-Cadherin complex regulation by epithelial polarity journal May 2016
Redundant regulation of localization and protein stability of DmPar3 journal March 2018
Differential positioning of adherens junctions is associated with initiation of epithelial folding journal March 2012
Regulation of epithelial polarity by the E3 ubiquitin ligase Neuralized and the Bearded inhibitors in Drosophila journal April 2012
Apical domain polarization localizes actin–myosin activity to drive ratchet-like apical constriction journal July 2013
Adherens junctions: from molecules to morphogenesis journal July 2010
A homeostatic apical microtubule network shortens cells for epithelial folding via a basal polarity shift journal December 2017
The Hippo pathway and apico–basal cell polarity journal May 2011
Distinct activities of Scrib module proteins organize epithelial polarity journal May 2020
Localization and Function of Pals1-associated Tight Junction Protein in Drosophila Is Regulated by Two Distinct Apical Complexes journal May 2015
Independent cadherin–catenin and Bazooka clusters interact to assemble adherens junctions journal May 2009
Formation of a Bazooka–Stardust complex is essential for plasma membrane polarity in epithelia journal September 2010
PAR proteins diffuse freely across the anterior–posterior boundary in polarized C. elegans embryos journal April 2011
A contractile actomyosin network linked to adherens junctions by Canoe/afadin helps drive convergent extension journal July 2011
Interactions between the PDZ domains of Bazooka (Par-3) and phosphatidic acid: in vitro characterization and role in epithelial development journal September 2012
An alternative mode of epithelial polarity in the Drosophila midgut posted_content January 2018
Troponin-I localizes selected apico-basal cell polarity signals posted_content August 2018
Microtubules stabilize intercellular contractile force transmission during tissue folding posted_content January 2019
Scribble and Discs-large direct adherens junction positioning and supermolecular assembly to establish apical-basal polarity posted_content May 2019
Emergence of the subapical domain is associated with the midblastula transition posted_content June 2019
Distinct activities of Scrib module proteins organize epithelial polarity posted_content January 2019
Role for Traf4 in Polarizing Adherens Junctions as a Prerequisite for Efficient Cell Shape Changes journal October 2011
The PAR proteins: from molecular circuits to dynamic self-stabilizing cell polarity journal October 2017
FGF controls epithelial-mesenchymal transitions during gastrulation by regulating cell division and apicobasal polarity journal January 2018
Scribble and discs-large direct initial assembly and positioning of adherens junctions during establishment of apical-basal polarity journal January 2019
Development and dynamics of cell polarity at a glance journal April 2017
Shot and Patronin polarise microtubules to direct membrane traffic and biogenesis of microvilli in epithelia journal January 2016
Dynamics of cortical domains in early Drosophila development journal April 2018
Troponin-I localizes selected apico-basal cell polarity signals journal January 2019
An alternative mode of epithelial polarity in the Drosophila midgut journal October 2018
The Drosophila afadin homologue Canoe regulates linkage of the actin cytoskeleton to adherens junctions during apical constriction text January 2009
An alternative mode of epithelial polarity in the Drosophila midgut text January 2019
Src Cooperates with Oncogenic Ras in Tumourigenesis via the JNK and PI3K Pathways in Drosophila epithelial Tissue text January 2022
The contractile vacuole complex of protists – New cues to function and biogenesis journal July 2013
Src Cooperates with Oncogenic Ras in Tumourigenesis via the JNK and PI3K Pathways in Drosophila epithelial Tissue journal May 2018
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