ArticleInternational journal of molecular sciences2026
GDF9, NPHS1, and RET Mark Gastric Neuroendocrine Cells and Their Disruption in a PKA-Driven Gastric Preneoplasia Model.
Article in International journal of molecular sciences, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
The gastric endocrine population comprises functionally distinct cell types that exhibit both neuronal and endocrine characteristics; however, their molecular markers remain incompletely defined. Here, we identify growth differentiation factor 9 (GDF9), nephrin (NPHS1), and rearranged during transfection (RET) as novel markers of gastric endocrine cells. A co-immunofluorescence (IF) analysis demonstrated that GDF9, NPHS1, and RET are co-expressed with chromogranin A (CHGA), a well-known marker of gastrointestinal endocrine cells. Further Co-IF analysis revealed that GDF9-expressing cells were negative for ghrelin and somatostatin, whereas NPHS1 was co-expressed with both hormones. A subpopulation of RET-positive cells co-expressed ghrelin but not somatostatin. Notably, GDF9- and RET-positive cells co-expressed dopamine decarboxylase (DDC), consistent with enrichment in enterochromaffin-like (ECL) cells. Revisitation of our previous mRNA-sequencing data revealed reduced transcript levels of
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