Progranulin is the precursor protein of Granulin also called as Proepithelin and PC cell-derived growth factor. Cleavage of the signal peptide produces mature Granulin. Both Granulin and smaller cleavage product of Granulin regulates cell growth. Progranulin stimulates proliferation of many epithelial cells, promotes their anchorage-independent growth and, when overexpressed, confers epithelial tumorigenicity. Progranulin/epithelin gene is multifunctional, with important constitutive roles in epithelial homeostasis, reproductive, immunological, and neuronal function. Progranulin constitutively expressed in a number of epithelia, particularly in the skin, GI tract, and reproductive system. Progranulin is expressed in immune cells in vivo and in specific neurons in the brain.
Acrogranin; CLN11; Epithelin precursor; Epithelin-1; Epithelin-2; GEP; Glycoprotein of 88 Kda; GP88; Granulin; Granulin A; Granulin B; Granulin C; Granulin D; Granulin E; Granulin F; Granulin G; Granulin precursor; Granulin-1; Granulin-2; Granulin-3; Granulin-4; Granulin-5; Granulin-6; Granulin-7; Granulin-epithelin; Paragranulin; PC Cell-derived growth factor; PCDGF; PEPI; PGRN; Proepithelin; Progranulin