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NF2/Merlin Inactivation and Potential Therapeutic Targets in Mesothelioma

Tatsuhiro Sato1, Yoshitaka Sekido2,3

  • 1Division of Molecular Oncology, Aichi Cancer Center Research Institute, 1-1 Kanokoden, Chikusa-ku, Nagoya 464-8681, Japan. satot@aichi-cc.jp.

International Journal of Molecular Sciences
|March 29, 2018
PubMed

Insights

Neurofibromatosis type 2 (NF2) gene inactivation disrupts merlin, a tumor suppressor. This impacts signaling pathways crucial for malignant mesothelioma development and progression.

Area of Science:

  • Oncology
  • Molecular Biology
  • Genetics

Background:

  • The neurofibromatosis type 2 (NF2) gene encodes merlin, a tumor suppressor protein.
  • Merlin's structural similarity to ERM proteins suggests a role in cytoskeletal regulation and signal transduction.
  • Merlin inactivation is common in schwannoma, meningioma, and malignant mesothelioma (MM).

Purpose of the Study:

  • To review the molecular events following NF2/merlin inactivation in cancer development.
  • To explore the role of merlin in regulating cellular processes like transcription, translation, and signaling pathways (Hippo, mTOR).
  • To discuss potential therapeutic targets for merlin-deficient mesotheliomas.

Main Methods:

  • Literature review summarizing current knowledge on NF2/merlin function and inactivation.
  • Analysis of the molecular consequences of merlin loss in cancer.
  • Identification of therapeutic strategies for merlin-deficient tumors.

Main Results:

  • Merlin's closed conformation and intramolecular interactions are key to its function.
  • Merlin regulates diverse cellular events, including transcription, translation, ubiquitination, and miRNA biosynthesis.
  • NF2 inactivation is implicated in approximately 40% of malignant mesothelioma cases.

Conclusions:

  • NF2/merlin inactivation is a critical driver in the development and progression of malignant mesothelioma.
  • Understanding merlin's regulatory roles provides insights into cancer pathogenesis.
  • Targeting merlin-deficient pathways offers potential therapeutic avenues for mesothelioma.
Keywords:
Hippo signaling pathwayPI3K/AKT/mTOR signaling pathwaymalignant mesotheliomamerlinneurofibromatosis type 2 (NF2)

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