[Recent Advances in the Treatment of Craniopharyngioma:A Breakthrough in Molecular Targeted Therapy]

Shingo Fujio1, Ryosuke Hanaya

  • 1Department of Neurosurgery, Graduate School of Medical and Dental Sciences, Kagoshima University.

Insights

Craniopharyngiomas, challenging sellar tumors, are better understood through molecular drivers like CTNNB1 and BRAF V600E. Targeted therapies show promise for papillary craniopharyngiomas, improving treatment strategies.

Area of Science:

  • Neuro-oncology
  • Molecular biology
  • Endocrinology

Background:

  • Craniopharyngiomas are benign tumors near critical brain structures, posing surgical and treatment challenges.
  • Recent discoveries identified specific mutations (CTNNB1, BRAF V600E) driving tumor development.
  • Understanding tumor biology is key to improving patient outcomes.

Purpose of the Study:

  • To review current understanding of craniopharyngioma biology and treatment.
  • To highlight advances in surgical and molecular therapies.
  • To discuss future directions in personalized treatment approaches.

Main Methods:

  • Review of recent molecular studies on craniopharyngioma driver mutations.
  • Analysis of advancements in endoscopic endonasal transsphenoidal surgery.
  • Evaluation of radiotherapy's role in managing residual or recurrent disease.
  • Assessment of molecular targeted therapies, including BRAF and MEK inhibitors.

Main Results:

  • CTNNB1 mutations are found in adamantinomatous craniopharyngiomas; BRAF V600E mutations in papillary craniopharyngiomas.
  • Endoscopic surgery offers improved safety and minimally invasive resection.
  • Targeted therapy with BRAF/MEK inhibitors shows significant tumor shrinkage in BRAF V600E-mutated papillary craniopharyngiomas.
  • These targeted agents are effective for recurrent/refractory disease and show potential for neoadjuvant and function-preserving treatment.

Conclusions:

  • Craniopharyngioma treatment is evolving with a deeper understanding of molecular drivers.
  • Minimally invasive surgery and targeted therapies are transforming management.
  • Future strategies will integrate molecular subtypes, patient factors, and functional outcomes for individualized care.
  • Preoperative molecular diagnostics, like liquid biopsy, may enhance targeted therapy integration.