The MAPK (Mitogen-Activated Protein Kinase) and PI3K/Akt (Phosphatidylinositol-3-Kinase/Protein Kinase B) pathways are key cellular signaling networks. MAPK regulates cell responses to external stimuli, including cell growth and differentiation. PI3K/Akt pathway controls cell survival and metabolism. Both pathways play critical roles in various cellular processes and have implications in health and disease.