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miR-133 inhibits pituitary tumor cell migration and invasion via down-regulating FOXC1 expression

D S Wang1, H Q Zhang1, B Zhang1

  • 1Department of Neurosurgery, Second Affiliated Hospital of Dalian Medical University, Dalian, China.

Genetics and Molecular Research : GMR
|April 7, 2016
PubMed

Insights

MicroRNA-133 acts as a tumor suppressor by inhibiting pituitary adenoma cell migration and invasion. It targets FOXC1, suggesting potential therapeutic applications for invasive pituitary tumors.

Area of Science:

  • Endocrinology
  • Molecular Biology
  • Oncology

Background:

  • MicroRNA (miR)-133 is recognized as a tumor suppressor in various metastatic cancers.
  • The role of miR-133 in pituitary tumor malignancy remains largely unexplored.

Purpose of the Study:

  • To investigate the function of miR-133 in pituitary tumor cell migration and invasion.
  • To elucidate the molecular mechanisms underlying miR-133's effects on pituitary tumors.

Main Methods:

  • Utilized pituitary adenoma cell lines to study miR-133's effects.
  • Investigated the direct targeting of forkhead box C1 (FOXC1) by miR-133.
  • Analyzed the correlation between FOXC1 and miR-133 expression in cancerous versus normal tissues.

Main Results:

  • miR-133 directly targets and negatively regulates FOXC1 expression in pituitary adenoma cells.
  • miR-133 significantly inhibits pituitary adenoma cell migration and invasion.
  • miR-133 can induce epithelial-to-mesenchymal transition.
  • A negative correlation between FOXC1 and miR-133 expression was observed in clinical tissues.

Conclusions:

  • miR-133 suppresses pituitary adenoma cell migration and invasion by targeting FOXC1.
  • miR-133 holds potential as a therapeutic target for invasive pituitary adenoma.

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