Biological Function of NF2/Merlin and Its Role in Tumorigenesis
LI Mengyao1, JIA Zexiao1, LEI Zhaoying1, DING Xue1, YANG Shuxu2 *, YAN Qingfeng1,3,4*
NF2 (neurofibromin 2) was cloned and identified from patients with neurofibromatosis type 2. NF2 gene encodes tumor suppressor protein Merlin (Moesin-Ezrin-Radixin-like protein), which mediates cell junctions and participates in Hippo, PI3K/AKT/mTOR (phosphatidylinositol 3-kinase/protein kinase B/mammalian target of rapamycin), Wnt/β-catenin and RTKs (receptor tyrosine kinases) signaling pathways. NF2 mutation or Merlin dysfunction may cause not only neurofibromatosis type 2 with schwannoma, meningioma and ependymoma, but also liver cancer, breast cancer and many other malignant tumors. This review summarizes the structure, variation and modification of NF2/Merlin, and introduces the research progress in the biological function of NF2/Merlin and its role and mechanism in tumorigenesis in detail.