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Published on: June 6, 2025

Signal transduction pathways: new targets for treating rheumatoid arthritis

Jacques Morel1, Francis Berenbaum

  • 1Immunorheumatology Department and Inserm U454, CHU Lapeyronie Hospital, 371, avenue du Doyen Gaston Giraud, 34295 Montpellier 5, France. j-morel@chu-montpellier.fr

Joint Bone Spine
|December 14, 2004
PubMed

Insights

New rheumatoid arthritis treatments are available, but some patients do not respond. Research into signal transduction pathways, like MAPK and PI3K, offers potential new targets for rheumatoid arthritis therapy.

Area of Science:

  • Rheumatology and Immunology
  • Molecular Biology
  • Pharmacology

Background:

  • Biotherapies have expanded rheumatoid arthritis (RA) treatment options.
  • Primary refractoriness and secondary escape necessitate novel therapeutic targets in RA management.

Purpose of the Study:

  • To explore signal transduction pathways as potential targets for new RA treatments.
  • To review strategies for inhibiting these pathways, including pharmacological agents and genetic approaches.

Main Methods:

  • Identification of key signal transduction molecules, including protein kinases (MAPK, PI3K) and transcription factors (NF-kappaB, AP-1, C/EBP, STAT).
  • Discussion of three main inhibition strategies: pharmacological inhibitors, antisense oligonucleotides/interfering mRNA, and overexpression of natural inhibitors.

Main Results:

  • Pharmacological inhibitors targeting pathways like p38 MAPK are in clinical trials.
  • Preliminary results for p38 MAPK inhibitors show promise.
  • Safety data for these novel inhibitors are still pending.

Conclusions:

  • Signal transduction pathways represent promising targets for RA therapy.
  • Inhibition strategies are being developed, with ongoing clinical evaluation.
  • Potential for untoward effects exists due to the role of these pathways in normal physiological processes.

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