β-arrestin2: an emerging player and potential therapeutic target in inflammatory immune diseases

Ping-Ping Gao1, Ling Li1, Ting-Ting Chen1

  • 1Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Anhui Collaborative Innovation Center of Anti-inflammatory and Immune Medicine, Hefei, 230032, China.

Acta Pharmacologica Sinica
|September 30, 2024
PubMed

Insights

Beta-arrestin2 is crucial in immune responses and inflammatory diseases. Targeting beta-arrestin2 presents a promising therapeutic strategy for treating various immune-related inflammatory conditions.

Area of Science:

  • Molecular Biology
  • Immunology
  • Cell Biology

Background:

  • Beta-arrestin2 (β-arrestin2) is a key protein regulating G protein-coupled receptors (GPCRs) signaling.
  • It functions in the cytoplasm, plasma membrane, and nucleus, influencing cellular processes.
  • Emerging evidence highlights its non-GPCR roles in various signaling pathways.

Purpose of the Study:

  • To review the multifaceted roles of β-arrestin2 in inflammatory immune responses.
  • To explore the pathological significance of β-arrestin2 in diverse inflammatory immune diseases.
  • To assess the therapeutic potential of modulating β-arrestin2 for disease treatment.

Main Methods:

  • Literature review of studies on β-arrestin2 function and involvement in disease.
  • Analysis of β-arrestin2's dual role in GPCR desensitization and scaffolding.
  • Examination of β-arrestin2's impact on non-GPCR pathways (NF-κB, MAPK, TGF-β).

Main Results:

  • β-arrestin2 mediates GPCR desensitization and internalization.
  • It acts as a scaffold for kinase activation and signaling pathway modulation.
  • β-arrestin2 is essential for immune cell infiltration, inflammatory factor release, and proliferation.

Conclusions:

  • β-arrestin2 is integral to the pathogenesis of inflammatory immune diseases.
  • Its involvement spans conditions like inflammatory bowel disease, sepsis, asthma, rheumatoid arthritis, fibrosis, and tumors.
  • Targeting β-arrestin2 represents a promising therapeutic avenue for inflammatory immune diseases.

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