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SETD7 Promotes Cell Proliferation and Migration via Methylation-mediated TAF7 in Clear Cell Renal Cell Carcinoma

Jinyuan Zhang1, Baojun Duan1,2, Fang Li1

  • 1Institute of Genetics and Development Biology, Translational Medcine Institute, Xi'an Jiaotong University, Xi'an 710301, China.

International Journal of Biological Sciences
|June 21, 2024
PubMed

Insights

SET domain containing 7 (SETD7) promotes clear cell renal cell carcinoma (ccRCC) progression by methylating TAF7, stabilizing it, and increasing CCNA2 expression. This SETD7-TAF7-CCNA2 axis offers potential therapeutic targets for ccRCC.

Area of Science:

  • Oncology
  • Molecular Biology
  • Epigenetics

Background:

  • SET domain containing 7 (SETD7), a histone methyltransferase, shows abnormal expression in various cancers.
  • The role and mechanism of SETD7 in clear cell renal cell carcinoma (ccRCC) are not well understood.

Purpose of the Study:

  • To investigate the biological effects of the SETD7-TAF7-CCNA2 axis on ccRCC proliferation and metastasis.
  • To elucidate the molecular mechanism by which SETD7 influences ccRCC progression.

Main Methods:

  • Analysis of SETD7 and TAF7 expression and correlation in ccRCC tissues.
  • Investigation of SETD7's methylation of TAF7 at specific sites (K5, K300) and its effect on TAF7 stability.
  • Assessment of TAF7's role in regulating CCNA2 expression and its impact on ccRCC cell proliferation and migration.

Main Results:

  • SETD7 and TAF7 were upregulated in ccRCC and promoted cell proliferation and migration.
  • SETD7 directly methylates TAF7 at K5 and K300, leading to TAF7 deubiquitination and stabilization.
  • TAF7 transcriptionally activates CCNA2, and SETD7-mediated TAF7 methylation enhances this activity, promoting ccRCC.
  • Restoring TAF7 partially rescued the inhibitory effects of SETD7 knockdown on ccRCC cells.

Conclusions:

  • SETD7-mediated methylation of TAF7 is a key mechanism regulating CCNA2 transcription in ccRCC.
  • The SETD7-TAF7-CCNA2 axis plays a crucial role in ccRCC formation and progression.
  • Targeting the SETD7-TAF7-CCNA2 axis presents a potential therapeutic strategy for ccRCC.
Keywords:
SETD7TAF7clear cell renal cell carcinomalysine methylationoncogene

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