Mesenchymal stem cells protect from hypoxia-induced alveolar epithelial-mesenchymal transition

Mesenchymal stem cells protect from hypoxia-induced alveolar epithelial-mesenchymal transition.

Administration of bone marrow-derived human mesenchymal stem cells (hMSC) reduces lung inflammation, fibrosis, and mortality in animal models of lung injury, by a mechanism not completely understood. We investigated whether hMSC would prevent epithelial-mesenchymal transition (EMT) induced by hypoxia in primary rat alveolar epithelial cell (AEC). In AEC cultured on semipermeable filters, prolon...

Mesenchymal Stem Cells Trigger Epithelial to Mesenchymal Transition in the HT-29 Colorectal Cancer Cell Line

Background and Objective: Mesenchymal stem cells (MSCs) promote metastasis in colorectal cancer; however, the mechanism underlying this process is not fully understood. Epithelial to mesenchymal transition (EMT) is a key step in tumor acquisition of metastatic phenotype. We aimed to investigate the effect of MSCs on the expression of EMT markers, as well as cancer stem cell markers in HT-29 col...

Hypoxia-induced alveolar epithelial-mesenchymal transition requires mitochondrial ROS and hypoxia-inducible factor 1.

Patients with acute lung injury develop hypoxia, which may lead to lung dysfunction and aberrant tissue repair. Recent studies have suggested that epithelial-mesenchymal transition (EMT) contributes to pulmonary fibrosis. We sought to determine whether hypoxia induces EMT in alveolar epithelial cells (AEC). We found that hypoxia induced the expression of alpha-smooth muscle actin (alpha-SMA) an...

[Epithelial-mesenchymal transition and cancer stem cells].

Epithelial-Mesenchymal Transition and Cancer Stem Cells

The epithelial to mesenchymal transition (EMT) is a highly coordinated process and a multistep event during which epithelial cells lose numerous epithelial characteristics and assume properties that are typical of mesenchymal cells, which requires complex changes in cell architecture and behavior. The conversion of epithelial cells to mesenchymal cells is critical for the formation of the body ...