ArticleThe Journal of cell biology2011
Lulu2 regulates the circumferential actomyosin tensile system in epithelial cells through p114RhoGEF.
Article in The Journal of cell biology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 59 papers.
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Who cites it
59 citing papers in PubMed, 97 citations in OpenAlex.
- Expression of p114RhoGEF predicts lymph node metastasis and poor survival of squamous-cell lung carcinoma patients.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2013Trial
- Identification of novel genes regulating the development of the palate.Developmental dynamics : an official publication of the American Association of Anatomists · 2026Article
- Single-cell transcriptomic profiling combined with Mendelian randomization illuminates molecular drivers of bladder cancer.Molecular genetics and genomics : MGG · 2026Article
- Intrinsic mechanotransduction during apical constriction licenses lineage competence in pluripotent stem cells.bioRxiv : the preprint server for biology · 2025Article
- CRB3 and NF2 orchestrate cytoskeletal dynamics to control epithelial barrier assembly.JCI insight · 2025Article
- A feedback circuitry involving γ-actin, β-actin and nonmuscle myosin-2 A controls tight junction and apical cortex mechanics.Nature communications · 2025Article
- Crb3 and NF2: A dynamic duo that controls assembly of the apical junctions and barrier function via Rho/ROCK signaling.bioRxiv : the preprint server for biology · 2025Article
- PALS1-dependent modulations of mRNA profiles in MDCK II cells grown in non-confluent monolayers and three-dimensional cysts.BMC genomic data · 2024Article
- Roles of the Dbl family of RhoGEFs in mechanotransduction - a review.Frontiers in cell and developmental biology · 2024Review
- Oncogenic Gαq activates RhoJ through PDZ-RhoGEF.International journal of molecular sciences · 2023Article
- The RhoGEF protein Plekhg5 regulates medioapical and junctional actomyosin dynamics of apical constriction duringMolecular biology of the cell · 2023Article
- Systematic analysis of RhoGEF/GAP localizations uncovers regulators of mechanosensing and junction formation during epithelial cell division.Current biology : CB · 2023Article
- Identifying key multifunctional components shared by critical cancer and normal liver pathways via SparseGMM.Cell reports methods · 2023Article
- aPKC regulates apical constriction to prevent tissue rupture in the Drosophila follicular epithelium.Current biology : CB · 2022Article
- Apical-basal polarity and the control of epithelial form and function.Nature reviews. Molecular cell biology · 2022Review
- Lmo7 recruits myosin II heavy chain to regulate actomyosin contractility and apical domain size in Xenopus ectoderm.Development (Cambridge, England) · 2022Article
- DAPLE orchestrates apical actomyosin assembly from junctional polarity complexes.The Journal of cell biology · 2022Article
- Rho and Rab Family Small GTPases in the Regulation of Membrane Polarity in Epithelial Cells.Frontiers in cell and developmental biology · 2022Review
- MRCK: a master regulator of tissue remodeling or another 'ROCK' in the epithelial block?Tissue barriers · 2021Review
- Pak1 and PP2A antagonize aPKC function to support cortical tension induced by the Crumbs-Yurt complex.eLife · 2021Article
Corrections and comments
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Myosin II-driven mechanical forces control epithelial cell shape and morphogenesis. In particular, the circumferential actomyosin belt, which is located along apical cell-cell junctions, regulates many cellular processes. Despite its importance, the molecular mechanisms regulating the belt are not fully understood. In this paper, we characterize Lulu2, a FERM (4.1 protein, ezrin, radixin, moesin) domain-containing molecule homologous to Drosophila melanogaster Yurt, as an important regulator. In epithelial cells, Lulu2 is localized along apical cell-cell boundaries, and Lulu2 depletion by ribonucleic acid interference results in disorganization of the circumferential actomyosin belt. In its regulation of the belt, Lulu2 interacts with and activates p114RhoGEF, a Rho-specific guanine nucleotide exchanging factor (GEF), at apical cell-cell junctions. This interaction is negatively regulated via phosphorylation events in the FERM-adjacent domain of Lulu2 catalyzed by atypical protein kinase C. We further found that Patj, an apical cell polarity regulator, recruits p114RhoGEF to apical cell-cell boundaries via PDZ (PSD-95/Dlg/ZO-1) domain-mediated interaction. These findings therefore reveal a novel molecular system regulating the circumferential actomyosin belt in epithelial cells.
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