Genomics Inform.  2014 Mar;12(1):12-20. 10.5808/GI.2014.12.1.12.

Membrane Proteins Involved in Epithelial-Mesenchymal Transition and Tumor Invasion: Studies on TMPRSS4 and TM4SF5

Affiliations
  • 1Immunotherapy Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 305-806, Korea.
  • 2Department of Pharmacy, College of Pharmacy, Seoul National University, Seoul 151-742, Korea.

Abstract

The epithelial-mesenchymal transition (EMT) is one mechanism by which cells with mesenchymal features can be generated and is a fundamental event in morphogenesis. Recently, invasion and metastasis of cancer cells from the primary tumor are now thought to be initiated by the developmental process termed the EMT, whereby epithelial cells lose cell polarity and cell-cell interactions, and gain mesenchymal phenotypes with increased migratory and invasive properties. The EMT is believed to be an important step in metastasis and is implicated in cancer progression, although the influence of the EMT in clinical specimens has been debated. This review presents the recent results of two cell surface proteins, the functions and underlying mechanisms of which have recently begun to be demonstrated, as novel regulators of the molecular networks that induce the EMT and cancer progression.

Keyword

epithelial-mesenchymal transition; invasion; membrane proteins; TM4SF5; TMPRSS4

MeSH Terms

Cell Polarity
Epithelial Cells
Epithelial-Mesenchymal Transition*
Membrane Proteins*
Membranes*
Morphogenesis
Neoplasm Metastasis
Phenotype
Membrane Proteins
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