NFKB1-miR-612-FAIM2 pathway regulates tumorigenesis in neurofibromatosis type 1

  • Meng WangEmail author
  • Zengtao Wang
  • Xiaolei Zhu
  • Shibing Guan
  • Zhibo Liu


Neurofibromatosis type I (NF1) is a carcinoma mainly featured by malignant peripheral nerve sheath tumor (MPNST). Dysregulated microRNAs (miRNAs) play decisive roles in tumor initiation and development. Our study sought for the possible roles of miR-612 in NF1. RT-qPCR estimated the expression of nuclear factor kappa B subunit 1 (NFKB1), miR-612, and Fas apoptotic inhibitory molecule 2 (FAIM2) in NF1, separately. Cell proliferation and migration were detected by CCK-8 and transwell experiments. Cell apoptosis was measured via flow cytometry and detection of the expression and activity of caspase 3/8/9. Luciferase reporter, ChIP, and RIP assays testified the interplay between studied genes. Rescue and in vivo assays affirmed the whole mechanism of miR-612 in NF1. We indicated that miR-612 was significantly low in tumor tissues and cells. Mechanism experiments confirmed that miR-612 promotion repressed cell proliferation and migration, and induced cell apoptosis. Besides, NFKB1-regulated miR-612 targeted FAIM2. Spearman’s correlation analysis validated the correlation between each two genes. Finally, rescue and in vivo assays affirmed that miR-612 targeted FAIM2 to regulate cellular activities of NF1. The current investigation uncovered the molecular mechanism underlying miR-612 in NF1, establishing miR-612 as a novel therapeutic target for the treatment of NF1 patients.





We sincerely thank all involvers in this research.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.


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Copyright information

© The Society for In Vitro Biology 2019

Authors and Affiliations

  1. 1.Hand and Foot Surgical CenterProvincial Hospital Affiliated to Shandong UniversityJinanChina

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