ArticleCancer & metabolism2025
Phosphatidylinositol promoted the proliferation and invasion of pituitary adenoma cells by regulating POU1F1 expression.
Article in Cancer & metabolism, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- NR3C1 Modulates Wnt Signalling to Influence the Invasiveness and Immune Features of Nonfunctioning Invasive Pituitary Adenomas.Journal of cellular and molecular medicine · 2026Article
- GABA Enhances Growth Hormone Expression by Modulating Somatotroph Pit-1 Transcription via Activation of Calmodulin-Dependent Kinases.Nutrients · 2026Article
- Single-cell analysis of the synovium and infrapatellar fat pad identifies key pathogenic genes and drug targets in osteoarthritis.International journal of clinical and experimental pathology · 2026Article
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Authors and funding
9 authors.
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No grant is acknowledged in the PubMed record.
Abstract
Invasiveness of pituitary adenoma is the main cause of its poor prognosis, mechanism of which remains largely unknown. In this study, the differential proteins between invasive and non-invasive pituitary tumors (IPA and NIPA) were identified by TMT labeled quantitative proteomics. The differential metabolites in venous bloods from patients with IPA and NIPA were analyzed by untargeted metabolomics. Proteomic data showed that the top five up-regulated proteins were AD021, C2orf15, PLCXD3, HIST3H2BB and POU1F1, and the top five down-regulated proteins were AIPL1, CALB2, GLUD2, SLC4A10 and GTF2I. Metabolomic data showed that phosphatidylinositol (PI) was most remarkably up-regulated and melibiose was most obviously down-regulated. Further investigation demonstrated that PI stimulation increased the expression of PITPNM1, POU1F1, C2orf15 and LDHA as well as the phosphorylation of AKT and ERK, and promoted the proliferation, migration and invasion of GH3 cells, which were blocked by PITPNM1knockdown. Inhibiting AKT phosphorylation reduced the expression of POU1F1, C2orf15 and LDHA in PI-stimulated cells while activating AKT increased their expression in PITPNM1-silencing cells, which was similar to the function of ERK. POU1F1 silence suppressed the expression of LDHA and C2orf15. Luciferase report assay and ChIP assay demonstrated that POU1F1 positively regulated the transcription of LDHA and C2orf15. In addition, PI propelled the metastasis of GH3 cells in vivo, and elevated the expression of PITPNM1, POU1F1, C2orf15 and LDHA. These results suggested that elevated serum PI might contribute to the proliferation and invasion of pituitary adenoma by regulating the expression of PITPNM1/AKT/ERK/POU1F1 axis.
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