The characteristic tall and elongated shape of epithelial cells requires specialized adhesive structures and a distinct organization of cytoskeletal filaments. Cytoskeletal networks coordinate a precise organization of adhesive and signalling complexes along cell-cell contacts and enable exquisite strong cohesion among epithelial cells. E-cadherin, a calcium-dependent adhesion receptor, is an essential adhesive system in epithelia and its dynamic regulation and pathways that stabilize cell-cell adhesion have been extensively studied. This review highlights the less understood mechanisms underlying how cadherin receptor signalling drives cytoskeletal rearrangements which ultimately define the epithelial cell shape. In the past two years, new insights identify specific actin-binding proteins and regulators of the epithelial cytoskeleton as a framework to support junction dynamics, plasticity and maintenance.
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http://dx.doi.org/10.1016/j.ceb.2016.07.006 | DOI Listing |
Cancers (Basel)
December 2024
Department of Oncology-Pathology, Karolinska Institutet, 171 64 Solna, Sweden.
The epithelial-to-mesenchymal transition (EMT) is a common feature in early cancer invasion. Increased vimentin is a canonical marker of the EMT; however, the role of vimentin in EMT remains unknown. To clarify this, we induced EMT in lung cancer cells with TGF-β1, followed by treatment with the vimentin-targeting drug ALD-R491, live-cell imaging, and quantitative proteomics.
View Article and Find Full Text PDFCommun Biol
January 2025
Key Laboratory of Breeding Biotechnology and Sustainable Aquaculture, Institute of Hydrobiology, Chinese Academy of Sciences, 430072, Wuhan, China.
The circadian clock genes are known important for kidney development, maturation and physiological functions. However, whether and how they play a role in renal regeneration remain elusive. Here, by using the single cell RNA-sequencing (scRNA-seq) technology, we investigated the dynamic gene expression profiles and cell states after acute kidney injury (AKI) by gentamicin treatment in zebrafish.
View Article and Find Full Text PDFPLoS One
January 2025
Department of Life Science and Medical Bioscience, Laboratory of Cytoskeletal Logistics, Graduate School of Advanced Science and Engineering, Waseda University, Shinjuku, Tokyo, Japan.
In mammalian epithelial cells, cytoplasmic microtubules are mainly non-centrosomal, through the functions of the minus-end binding proteins CAMSAP2 and CAMSAP3. When cells enter mitosis, cytoplasmic microtubules are reorganized into the spindle composed of both centrosomal and non-centrosomal microtubules. The function of the CAMSAP proteins upon spindle assembly remains unknown, as these do not exhibit evident localization to spindle microtubules.
View Article and Find Full Text PDFInt J Biol Sci
January 2025
The People's Hospital of Gaozhou, Gaozhou 525200, China.
Cyclin D3 (CCND3), a member of the cyclin D family, is known to promote cell cycle transition. In this study, we found that CCND3 was downregulated in cisplatin-resistant (-diamminedichloroplatinum, DDP) lung adenocarcinoma (LUAD) cells. The loss of CCND3 indeed impeded cell cycle transition.
View Article and Find Full Text PDFPLoS Biol
January 2025
Biochemistry and Molecular Biology and the Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, Pennsylvania, United States of America.
Microtubule nucleation is important for microtubule organization in dendrites and for neuronal injury responses. The core nucleation protein, γTubulin (γTub), is localized to dendrite branch points in Drosophila sensory neurons by Wnt receptors and scaffolding proteins on endosomes. However, whether Wnt ligands are important is unknown.
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