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Pax 4 and 6 regulate gastrointestinal endocrine cell development.

L I Larsson·L St-Onge·D M Hougaard·B Sosa-Pineda·P Gruss
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Abstract

The mechanisms behind the cell-specific and compartmentalized expression of gut and pancreatic hormones is largely unknown. We hereby report that deletion of the Pax 4 gene virtually eliminates duodenal and jejunal hormone-secreting cells, as well as serotonin and somatostatin cells of the distal stomach, while deletion of the Pax 6 gene eliminates duodenal GIP cells as well as gastrin and somatostatin cells of the distal stomach. Thus, together, these two genes regulate the differentiation of all proximal gastrointestinal endocrine cells and reflect common pathways for pancreatic and gastrointestinal endocrine cell differentiation.

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AnimalsCell DifferentiationDNA-Binding ProteinsDigestive SystemDuodenumEnteroendocrine CellsEye ProteinsGastrinsGene DeletionHomeodomain ProteinsImmunohistochemistryMiceMice, Mutant StrainsPAX6 Transcription FactorPaired Box Transcription FactorsRepressor ProteinsReverse Transcriptase Polymerase Chain ReactionSerotoninSomatostatinTranscription Factorsbeta-GalactosidaseJournal ArticleResearch Support, Non-U.S. Gov't

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L I Larsson, L St-Onge, D M Hougaard, B Sosa-Pineda, P Gruss. 1998. Pax 4 and 6 regulate gastrointestinal endocrine cell development.. https://doi.org/10.1016/s0925-4773(98)00182-8

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