ArticleEndocrine2013
Different levels of various glucocorticoid-regulated genes in corticotroph adenomas.
Article in Endocrine, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 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
3 citing papers in PubMed, 6 citations in OpenAlex.
- Membranous E-Cadherin Expression in Different Subtypes of Pituitary Neuroendocrine Tumors and Its Association with Invasiveness.International journal of molecular sciences · 2026Article
- PCSK1N as a Tumor Size Marker and an ER Stress Response Protein in Corticotroph Pituitary Adenomas.The Journal of clinical endocrinology and metabolism · 2025Article
- Proopiomelanocortin, glucocorticoid, and CRH receptor expression in human ACTH-secreting pituitary adenomas.Endocrine · 2017Article
Corrections and comments
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Authors and funding
6 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Recently, correlations between corticotroph tumor dedifferentiation and both E-cadherin immunostaining and reduced mRNA expression of the E-cadherin gene (CDH1) have been demonstrated. The purpose of this study was to explore whether tumor dedifferentiation correlated with glucocorticoid resistance and whether the resistance was associated with both positively and negatively regulated genes. Tumor material from 20 patients with verified Cushing's disease or Nelson's syndrome operated on at Rikshospitalet, Oslo. Reverse transcription polymerase chain reaction analysis of genes such as E-cadherin (CDH1), proopiomelanocortin (POMC), glucocorticoid-induced leucine zipper (GILZ), and thioredoxin-interacting protein (TXNIP) was performed. The correlations between the expression of the GILZ, TXNIP, and POMC genes in different stages of corticotroph adenomas, the E-cadherin mRNA expression and staining pattern, and the preoperative 24-h cortisol excretion were examined. The GILZ and TXNIP expression levels were positively correlated to the CDH1 expression and were highest in microadenomas and in tumors with a high membranous E-cadherin reactivity. In contrast, the POMC expression was not significantly different between the groups. This divergence between the genes that were positively and negatively regulated by glucocorticoids could not be supported by other gene expression analyses. No correlations to urinary cortisol were found. The expression of the glucocorticoid-responsive genes POMC, GILZ, and TXNIP in corticotroph adenomas showed a remarkable variation. The pattern and variability of glucocorticoid resistance in corticotroph adenomas seem to correlate with a loss of the epithelial phenotype associated with corticotroph tumor dedifferentiation.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.