Rôle des lysophospholipides dans la physiopathologie de la polyarthrite rhumatoïde

Authors: Sardella, Anne
Abstract: Rheumatoid arthritis (RA) is an autoimmune disease affecting approximately 1% of Canadians. The many treatments available still have major disadvantages: drug resistance in the long term, and partial or no effect of the drug. Therefore it is necessary to constantly develop new therapeutic targets. In recent years, lysophosphatidic acid (LPA) and sphingosine-1-phosphate (S1P) have appeared to play a role in the chronic inflammation involved in arthritis. In synovial fluid of patients with RA, we find not only LPA but also some products of its catabolism and the enzyme that produces it. Moreover, TNF-α, present in inflammation, is capable of amplifying the effects of LPA and S1P. In our study, we try to understand the mechanisms used by these two lysophospholipids which may exacerbate the chronic inflammation associated with RA. The enzymes that produce these lysophospholipids or their receptors could be potential targets for future therapies against RA.
Document Type: Mémoire de maîtrise
Issue Date: 2010
Open Access Date: 16 April 2018
Permalink: http://hdl.handle.net/20.500.11794/21323
Grantor: Université Laval
Collection:Thèses et mémoires

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