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JAB1/CSN5: a new player in cell cycle control and cancer

Terry J Shackleford1, Francois X Claret

  • 1Department of Systems Biology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, Texas 77030, USA. fxclaret@mdanderson.org.

Cell Division
|October 20, 2010
PubMed

Insights

c-Jun activation domain-binding protein-1 (Jab1), also known as CSN5, regulates cell signaling, proliferation, and apoptosis. Its oncogenic functions and overexpression in cancer highlight its potential as a therapeutic target.

Area of Science:

  • Molecular Biology
  • Cell Biology
  • Oncology

Background:

  • c-Jun activation domain-binding protein-1 (Jab1) functions as a monomer or part of the constitutive photomorphogenic-9 signalosome (CSN5).
  • Jab1/CSN5 influences transcription factor activity, protein deneddylation, and molecular transport.
  • It modulates critical cellular processes including cell cycle control, apoptosis, and integrin signaling.

Purpose of the Study:

  • To review current knowledge on Jab1/CSN5 functions and signaling pathways.
  • To highlight recent discoveries regarding Jab1/CSN5's role in genomic instability and DNA repair.
  • To discuss Jab1/CSN5's regulation in cancers and its therapeutic potential.

Main Methods:

  • Literature review of existing studies on Jab1/CSN5.
  • Analysis of Jab1/CSN5's involvement in various cellular pathways.
  • Examination of Jab1/CSN5's role in cancer development and progression.

Main Results:

  • Jab1/CSN5 exhibits diverse effects on cellular signaling, proliferation, and apoptosis.
  • Jab1/CSN5 plays a significant role in maintaining genomic stability and DNA repair.
  • Its interactions are predominantly oncogenic, with overexpression linked to tumorigenesis.

Conclusions:

  • Jab1/CSN5 is a key regulator with oncogenic potential, implicated in cancer development.
  • Understanding Jab1/CSN5 signaling pathways is crucial for cancer research.
  • Jab1/CSN5 represents a promising therapeutic target for various cancers.

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