ArticleEndocrine pathology2001
Immunocytochemical localization of prohormone convertase 1/3 and 2 in gastrointestinal carcinoids.
Article in Endocrine pathology, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
2 citing papers in PubMed, 6 citations in OpenAlex.
- PCSK2 expression in neuroendocrine tumors points to a midgut, pulmonary, or pheochromocytoma-paraganglioma origin.APMIS : acta pathologica, microbiologica, et immunologica Scandinavica · 2020Article
- Genetics of the first seven proprotein convertase enzymes in health and disease.Current genomics · 2013Article
Corrections and comments
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Authors and funding
1 author at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Gastrointestinal carcinoids are derived from the diffuse intestinal endocrine system and may produce amines and many peptides, including serotonin, chromogranin A (CGA), and tachykinins. Most peptide hormones are synthesized as bigger prohormones, which are processed to smaller active hormones by prohormone convertases (PCs). A total of 35 cases of gastrointestinal carcinoids, including gastric, duodenal, small intestinal, appendiceal, and large intestinal carcinoids, were immunocytochemically stained for serotonin, CGA, and PC 1/3 and 2, in order to colocalize CGA and PCs in the carcinoids. All carcinoids were positive for CGA and PCs. Carcinoids that stained strongly for CGA were generally weakly stained for PCs and those weakly staining for CGA were more strongly stained for PCs in the majority of the small and large intestinal tumors. Gastrointestinal carcinoids were positive for CGA and PCs, and the presence of PCs may suggest that the conversion of peptide prohormones to smaller peptide hormones occurs in gastrointestinal carcinoids. PCs immunocytochemistry may be added as a new phenotypic characterization for gastrointestinal carcinoids.
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