Prolactin and insulin are targeted to the regulated pathway in GH4C1 cells, but their storage is differentially regulated.
Reaves B, Van Itallie C, Moore H, Dannies P. Prolactin and insulin are targeted to the regulated pathway in GH4C1 cells, but their storage is differentially regulated. Endocrinology 1990, 4: 1017-26. PMID: 2284004, DOI: 10.1210/mend-4-7-1017.Peer-Reviewed Original ResearchConceptsGH4C1 cellsEpidermal growth factorPRL synthesisGrowth factorPreferential increaseCombination of estradiolRegulated pathwayRat pituitary tumor cellsIntracellular PRLPituitary tumor cellsBasal releasePRL releaseIntracellular proinsulinSame time courseHormone treatmentPRL storageTumor cellsProinsulin immunoreactivityMRNA levelsPRLInsulinSame peak heightHormoneProinsulinTreatment