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Review
. 2019 Feb 19;11(2):246.
doi: 10.3390/cancers11020246.

FBXW7 in Cancer: What Has Been Unraveled Thus Far?

Affiliations
Review

FBXW7 in Cancer: What Has Been Unraveled Thus Far?

Bethsebie Lalduhsaki Sailo et al. Cancers (Basel). .

Abstract

: The FBXW7 (F-box with 7 tandem WD40) protein encoded by the gene FBXW7 is one of the crucial components of ubiquitin ligase called Skp1-Cullin1-F-box (SCF) complex that aids in the degradation of many oncoproteins via the ubiquitin-proteasome system (UPS) thus regulating cellular growth. FBXW7 is considered as a potent tumor suppressor as most of its target substrates can function as potential growth promoters, including c-Myc, Notch, cyclin E, c-JUN, and KLF5. Its regulators include p53, C/EBP-δ, Numb, microRNAs, Pin 1, Hes-5, BMI1, Ebp2. Mounting evidence has indicated the involvement of aberrant expression of FBXW7 for tumorigenesis. Moreover, numerous studies have also shown its role in cancer cell chemosensitization, thereby demonstrating the importance of FBXW7 in the development of curative cancer therapy. This comprehensive review emphasizes on the targets, functions, regulators and expression of FBXW7 in different cancers and its involvement in sensitizing cancer cells to chemotherapeutic drugs.

Keywords: FBXW7; SCF complex; cancer; chemoresistance; chemosensitization; mutations; tumor suppressor.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Mode of function of FBXW7.
Figure 2
Figure 2
Structure of FBXW7.
Figure 3
Figure 3
Regulators and targets of FBXW7 in cancer.

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