iScience (Jan 2023)

Centrosomal protein 120 promotes centrosome amplification and gastric cancer progression via USP54-mediated deubiquitination of PLK4

  • Chenggang Zhang,
  • Xianxiong Ma,
  • Guanxin Wei,
  • Xiuxian Zhu,
  • Peng Hu,
  • Xiang Chen,
  • Dianshi Wang,
  • Yuan Li,
  • Tuo Ruan,
  • Weikang Zhang,
  • Kaixiong Tao,
  • Chuanqing Wu

Journal volume & issue
Vol. 26, no. 1
p. 105745

Abstract

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Summary: Centrosomal protein 120 (CEP120) is a 120 kDa centrosome protein that plays an important role in centrosome replication. Overexpression of CEP120 can lead to centrosome duplicate abnormality, which is closely associated with tumorigenesis and development. However, there are no reports on the relationship between CEP120 and tumors. In our study, overexpression of CEP120 promoted centrosome amplification in gastric cancer (GC), and the role of CEP120 in promoting GC progression was demonstrated in vitro and in vivo. We demonstrated that CEP120 promotes centrosome amplification and GC progression by promoting the expression and centrosome aggregation of the deubiquitinating enzyme USP54, maintaining the stability of PLK4 and reducing its ubiquitination degradation. In conclusion, the CEP120-USP54-PLK4 axis may play an important role in promoting centrosome amplification and GC progression, thus providing a potential therapeutic target for GC.

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