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Updated: May 22, 2026

Endoscopic Endonasal Trans-sphenoidal Approach: Minimally Invasive Surgery for Pituitary Adenomas
Published on: January 17, 2018
Pituitary adenoma pathogenesis: an update
1CellNetix Pathology and Laboratories, Seattle, Washington, USA.
Purpose Of Review:
To describe the recent efforts to understand the molecular and genetic mechanisms involved in the tumorigenesis of pituitary adenomas.
Recent Findings:
There is rapidly accumulating evidence for the roles of molecular abnormalities in pituitary adenoma tumorigenesis, including dysregulation of the cell cycle, signal transduction pathways, oncogenes and tumor suppressor genes. MicroRNAs have been identified as important participants in gene regulation and may have a role in therapy. Stem cells have also provided novel concepts for tumorigenesis and potentially treatment.
Summary:
Pituitary adenomas are relatively common neoplasms, whose pathogenesis is still poorly understood. Although considered by many as benign monoclonal proliferations, their clinical spectrum is diverse including hormone hypersecretion, and various degrees of invasiveness, suggesting multiple steps and mechanisms. This review summarizes recent development in the molecular tumorigenesis of pituitary adenomas emphasizing the dysregulation of the cell cycle components, tumor suppressor genes, oncogenes, stem cells and microRNAs.
Insights
Recent research highlights molecular and genetic factors in pituitary adenoma development. Key findings include cell cycle dysregulation, oncogenes, tumor suppressor genes, microRNAs, and stem cells in tumorigenesis.
Area of Science:
- Endocrinology
- Oncology
- Molecular Biology
Background:
- Pituitary adenomas are common neoplasms with diverse clinical presentations.
- The pathogenesis of pituitary adenomas remains incompletely understood.
- Understanding molecular mechanisms is crucial for diagnosis and treatment.
Purpose of the Study:
- To review recent advancements in understanding pituitary adenoma tumorigenesis.
- To elucidate the molecular and genetic mechanisms driving tumor development.
- To highlight key pathways and cellular components involved.
Main Methods:
- Literature review of recent studies on pituitary adenoma molecular genetics.
- Analysis of data on cell cycle regulation, oncogenes, and tumor suppressor genes.
- Investigation into the roles of microRNAs and stem cells in tumorigenesis.
Main Results:
- Accumulating evidence points to molecular abnormalities in pituitary adenoma development.
- Dysregulation of cell cycle, signal transduction, oncogenes, and tumor suppressor genes are implicated.
- MicroRNAs and stem cells emerge as significant factors in tumorigenesis and potential therapeutic targets.
Conclusions:
- Pituitary adenoma pathogenesis involves multiple steps and mechanisms.
- Recent developments emphasize the role of cell cycle components, oncogenes, tumor suppressor genes, stem cells, and microRNAs.
- Further research into these molecular aspects is essential for improved patient outcomes.
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