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[Calpains participate in inflammatory reaction development].
Laurent Baud1, Bruno Fouqueray, Agnès Bellocq
1Inserm U.489 et Service d'explorations fonctionnelles multidisciplinaires, Hôpital Tenon, 4, rue de la Chine, 75020 Paris, France. laurent.baud@tnn.ap-hop-paris.fr
Medecine Sciences : M/S
|July 3, 2003
Summary
Calpains, cysteine proteases, are key regulators of inflammation. Inhibiting calpains reduces inflammation by blocking nuclear factor-kappa B activation and inflammatory cell migration, offering novel therapeutic strategies.
Area of Science:
- Biochemistry
- Cell Biology
- Immunology
Context:
- Calpains are calcium-activated cysteine proteases found in mammalian cell cytosol.
- They are implicated in various cellular processes, including signaling pathways relevant to diseases like inflammation.
- Recent findings link calpain activity to the development of acute and chronic inflammatory conditions.
Purpose:
- To investigate the role of calpains in inflammatory reactions.
- To explore the therapeutic potential of calpain inhibitors in managing inflammation.
Summary:
- Calpains are crucial for activating nuclear factor-kappa B (NF-κB), a central transcription factor in inflammation.
- They regulate inflammatory cell adhesion, migration, and the release of pro-inflammatory mediators.
- Evidence suggests calpains may also function extracellularly during inflammation, presenting dual therapeutic targets.
Impact:
- Calpain inhibition demonstrates efficacy in reducing both acute and chronic inflammation.
- Understanding calpain's role in NF-κB activation and cell migration provides insights into inflammatory mechanisms.
- Targeting both intracellular and extracellular calpains offers promising therapeutic avenues for inflammatory diseases.