Cellular differentiation is influenced by extracellular signals such as growth factors that are exchanged to adjacent cells, which is called juxtracrine signaling, or to neighboring cells over short distances, which is called paracrine signaling.
Anmizlay n izirwan ornan ti ichamolan chund marsalan n adawal t imuti nen s izirwan iffarnen s ismawan nasan juxtracrine singaling meɣ izirwan ahanen edes san s ihandagan madroynen s ismawan nasan paracine singaling