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Article Dans Une Revue Biochimie Année : 2009

The membrane-bound mucins: From cell signalling to transcriptional regulation and expression in epithelial cancers

Résumé

The membrane-bound mucins belong to an ever-increasing family of O-glycoproteins. Based on their structure and localization at the cell surface they are thought to play important biological roles in cell-cell and cell-matrix interactions, in cell signalling and in modulating biological properties of cancer cells. Among them, MUC1 and MUC4 mucins are best characterized. Their altered expression in cancer (overexpression in the respiratory, gastro-intestinal, urogenital and hepato-biliary tracts) indicates an important role for these membrane-bound mucins in tumour progression, metastasis, cancer cell resistance to chemotherapeutics drugs and as specific markers of epithelial cancer cells. Some mechanisms responsible for MUC1 and MUC4 role in tumour cell properties have been deciphered recently. However, much remains to be done in order to understand the molecular mechanisms and signalling pathways that control the expression of membrane-bound mucins during the different steps of tumour progression toward adenocarcinoma and evaluate their potential as prognostic/diagnostic markers and as therapeutic tools. In this review we focus on the molecular mechanisms and signalling pathways known to control the expression of membrane-bound mucins in cancer. We will discuss the mechanisms of regulation at the promoter level (including genetic and epigenetic modifications) that may be responsible for the mucin altered pattern of expression in epithelial cancers.
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Dates et versions

hal-02905696 , version 1 (30-09-2020)

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Nicolas Jonckheere, Isabelle van Seuningen. The membrane-bound mucins: From cell signalling to transcriptional regulation and expression in epithelial cancers. Biochimie, 2009, ⟨10.1016/j.biochi.2009.09.018⟩. ⟨hal-02905696⟩

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