A transition where an epithelial cell loses apical/basolateral polarity, severs intercellular adhesive junctions, degrades basement membrane components and becomes a migratory mesenchymal cell.
mesenchymal cell development
mesenchymal cell differentiation involved in bone development
mesenchymal cell differentiation involved in lung development
mesenchymal cell differentiation involved in mammary gland development
mesenchymal cell differentiation involved in renal system development +
mesenchymal cell differentiation involved in salivary gland development