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.
Deferensiasi seluler polih panglalah saking sinyal ekstraseluler sekadi faktor pertumbuhan sané kabakta pantaraning sel sané nampek genah ipun, sané kawastanin makarya sinyal juxtracrine, utawi ring sel pisaga sané napek, sané kawastanin makarya sinyal parakrin.