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  • Title: Relationship between apical junction proteins, gene expression and cancer.
    Author: González-Mariscal L, Miranda J, Gallego-Gutiérrez H, Cano-Cortina M, Amaya E.
    Journal: Biochim Biophys Acta Biomembr; 2020 Sep 01; 1862(9):183278. PubMed ID: 32240623.
    Abstract:
    The apical junctional complex (AJC) is a cell-cell adhesion system present at the upper portion of the lateral membrane of epithelial cells integrated by the tight junction (TJ) and the adherens junction (AJ). This complex is crucial to initiate and stabilize cell-cell adhesion, to regulate the paracellular transit of ions and molecules and to maintain cell polarity. Moreover, we now consider the AJC as a hub of signal transduction that regulates cell-cell adhesion, gene transcription and cell proliferation and differentiation. The molecular components of the AJC are multiple and diverse and depending on the cellular context some of the proteins in this complex act as tumor suppressors or as promoters of cell transformation, migration and metastasis outgrowth. Here, we describe these new roles played by TJ and AJ proteins and their potential use in cancer diagnostics and as targets for therapeutic intervention.
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