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CARMA3: A novel scaffold protein in regulation of NF-κB activation and diseases

Jiyuan Sun1

  • 1Jiyuan Sun, Department of Neuro-Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, TX 77030, United States.

World Journal of Biological Chemistry
|May 4, 2011
PubMed

Insights

CARD-recruited membrane associated protein 3 (CARMA3) is crucial for G protein-coupled receptor signaling and NF-κB activation. This pathway is implicated in diseases like cancer and atherosclerosis, highlighting CARMA3 as a potential therapeutic target.

Area of Science:

  • Molecular Biology
  • Cell Signaling
  • Disease Pathogenesis

Background:

  • CARD-recruited membrane associated protein 3 (CARMA3) is a scaffold protein that activates nuclear factor (NF)-κB.
  • G protein-coupled receptors (GPCRs) like LPA and Ang II receptor utilize CARMA3 in NF-κB signaling.
  • Aberrant GPCR/NF-κB signaling contributes to diseases such as cancer and atherosclerosis.

Purpose of the Study:

  • To review the biology of CARMA3 and its role in the GPCR/CARMA3/NF-κB signaling axis.
  • To explore the involvement of this axis in ovarian cancer and atherogenesis.
  • To speculate on the broader implications of this pathway in other diseases and its potential as a therapeutic target.

Main Methods:

  • Literature review summarizing existing studies on CARMA3 and its signaling pathways.
  • Analysis of CARMA3's role in NF-κB activation downstream of specific GPCRs.
  • Examination of experimental evidence from cancer cell lines and animal models.

Main Results:

  • CARMA3 forms the CBM signalosome (CARMA3-Bcl10-MALT1) to trigger NF-κB activation.
  • CARMA3 is essential for LPA receptor-induced NF-κB activation and ovarian cancer invasion.
  • CARMA3 mediates Ang-II-receptor-induced NF-κB activation; Bcl10 deficiency protects against atherosclerosis and aneurysms.

Conclusions:

  • The GPCR/CARMA3/NF-κB signaling axis plays a critical role in ovarian cancer and atherogenesis.
  • CARMA3 is a key mediator linking GPCRs to NF-κB activation in disease pathogenesis.
  • CARMA3 represents a promising therapeutic target for various cancers and other diseases.
Keywords:
AtherogenesisCARD recruited membrane associated protein 3CancerG protein-coupled receptorNuclear factor-κBβ-arrestin

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