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A Guide to Production, Crystallization, and Structure Determination of Human IKK1/α
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Receptor interacting serine/threonine kinase 2 promotes rheumatoid arthritis progression and partially regulates

Yanzheng Wang1, Meiyu Xu2, Xinxin Liu3

  • 1Department of Medical Laboratory, Yantaishan Hospital, Yantai, China.

Cytojournal
|December 31, 2024
PubMed
Abstract

Insights

Receptor-interacting serine/threonine kinase 2 (RIPK2) is highly expressed in rheumatoid arthritis (RA). Silencing RIPK2 reduces RA fibroblast-like synoviocyte proliferation and inflammation, suggesting RIPK2 as a therapeutic target.

Area of Science:

  • Immunology
  • Molecular Biology
  • Rheumatology

Background:

  • Rheumatoid arthritis (RA) is a debilitating systemic autoimmune disease with largely unknown molecular pathways.
  • Receptor-interacting serine/threonine kinase 2 (RIPK2) is implicated in inflammatory processes.

Purpose of the Study:

  • To investigate the role of RIPK2 in rheumatoid arthritis (RA) progression.
  • To elucidate the underlying molecular mechanisms of RIPK2 in RA pathogenesis.

Main Methods:

  • Quantitative PCR, immunohistochemistry, and Western blot were used to analyze RIPK2 expression in RA tissues and cells.
  • Cell counting kit-8, 5-ethynyl-2'-deoxyuridine, transwell, and wound healing assays assessed cell proliferation, invasion, and migration.
  • Flow cytometry and ELISA measured apoptosis and inflammatory factors, respectively.
  • Western blot analyzed the nuclear factor kappa B (NF-κB) pathway.

Main Results:

  • RIPK2 was significantly upregulated in RA synovial tissues and fibroblast-like synoviocytes (FLS).
  • RIPK2 silencing in RA-FLS cells inhibited proliferation, invasion, and migration, while promoting apoptosis.
  • Silencing RIPK2 suppressed inflammatory responses and partially modulated the NF-κB pathway in RA-FLS cells.

Conclusions:

  • RIPK2 plays a crucial role in the malignant behavior and inflammatory response of RA-FLS.
  • Targeting RIPK2 may offer a potential therapeutic strategy for rheumatoid arthritis by modulating the NF-κB pathway.
Keywords:
Fibroblast-like synoviocytesNuclear factor kappa B pathwayReceptor interacting serine/threonine kinase 2Rheumatoid arthritis

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