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Selective PDE4 inhibitors as potent anti-inflammatory drugs for the treatment of airway diseases.

Abstract
Phosphodiesterases (PDEs) are responsible for the breakdown of intracellular cyclic nucleotides, from which PDE4 are the major cyclic AMP metabolizing isoenzymes found in inflammatory and immune cells. This generated greatest interest on PDE4 as a potential target to treat lung inflammatory diseases. For example, cigarette smoke-induced neutrophilia in BAL was dose and time dependently reduced by cilomilast. Beside the undesired side effects associated with the first generation of PDE4 inhibitors, the second generation of selective inhibitors such as cilomilast and roflumilast showed clinical efficacy in asthma and chronic obstructive pulmonary diseases trials, thus re-enhancing the interest on these classes of compounds. However, the ability of PDE4 inhibitors to prevent or modulate the airway remodelling remains relatively unexplored. We demonstrated that selective PDE4 inhibitor RP 73-401 reduced matrix metalloproteinase (MMP)-9 activity and TGF-beta1 release during LPS-induced lung injury in mice and that CI-1044 inhibited the production of MMP-1 and MMP-2 from human lung fibroblasts stimulated by pro-inflammatory cytokines. Since inflammatory diseases of the bronchial airways are associated with destruction of normal tissue structure, our data suggest a therapeutic benefit for PDE4 inhibitors in tissue remodelling associated with chronic lung diseases.
AuthorsVincent Lagente, Corinne Martin-Chouly, Elisabeth Boichot, Marco A Martins, Patrica M R Silva
JournalMemoĢrias do Instituto Oswaldo Cruz (Mem Inst Oswaldo Cruz) Vol. 100 Suppl 1 Pg. 131-6 (Mar 2005) ISSN: 0074-0276 [Print] Brazil
PMID15962112 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't, Review)
Chemical References
  • Anti-Inflammatory Agents
  • Phosphodiesterase Inhibitors
  • 3',5'-Cyclic-AMP Phosphodiesterases
  • Cyclic Nucleotide Phosphodiesterases, Type 4
Topics
  • 3',5'-Cyclic-AMP Phosphodiesterases (antagonists & inhibitors)
  • Anti-Inflammatory Agents (therapeutic use)
  • Asthma (drug therapy)
  • Cyclic Nucleotide Phosphodiesterases, Type 4
  • Humans
  • Phosphodiesterase Inhibitors (therapeutic use)
  • Pulmonary Disease, Chronic Obstructive (drug therapy)

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