Send to

Choose Destination
Genes Dis. 2018 Nov 12;6(1):25-30. doi: 10.1016/j.gendis.2018.11.001. eCollection 2019 Mar.

SKA2/FAM33A: A novel gene implicated in cell cycle, tumorigenesis, and psychiatric disorders.

Xie M1,2, Bu Y1.

Author information

Department of Biochemistry and Molecular Biology, College of Basic Medical Sciences, ChongQing Medical University, Chongqing, 400016, China.
Cancer Biology PhD Program, University of South Florida, Tampa, FL, 33612, USA.


SKA2 (spindle and KT associated 2), also referred to as FAM33A (family with sequence similarity 33, member A), is a recently identified gene involved in cell cycle regulation, and growing evidence is implicating its roles in tumorigenesis and psychiatric disorders. It has been demonstrated that SKA2, along with its coworkers SKA1 and SKA3, constitutes the SKA complex which plays a critical role in the maintenance of the metaphase plate and/or spindle checkpoint silencing during mitosis. SKA2 is over-expressed both in cancer cell lines and clinical samples including small cell lung cancer and breast cancer, whereas downregulation of SKA2 is associated with depression and suicidal ideation. The expression of SKA2 is regulated by transcription factors including NF-κΒ and CREB, miRNAs as well as DNA methylation. In this review, we provide an overview of studies that reveal SKA2 gene and protein characteristics as well as physiological function, with a special focus on its transcription regulatory mechanisms, and also provide a summary regarding the translational opportunity of the SKA2 gene as a clinical biomarker for cancers and psychiatric disorders.


Cell cycle; DNA methylation; FAM33A; Gene expression regulation; SKA2; Tumor

Supplemental Content

Full text links

Icon for Elsevier Science Icon for PubMed Central
Loading ...
Support Center