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Rev. chil. dermatol ; 24(4): 286-297, 2008. tab
Article in Spanish | LILACS | ID: lil-523690

ABSTRACT

La psoriasis es una enfermedad inflamatoria crónica, mediada por los linfocitos T, que afecta a 1 por ciento-3 por ciento de la población mundial. Afectando primordialmente la piel y las articulaciones (artritis psoriática), también está asociada con otras condiciones inflamatorias, como son la enfermedad intestinal inflamatoria y patología coronaria, entre otras. El tratamiento de la psoriasis viene dado según su extensión y severidad, variando desde modalidades locales (tópicas e intralesionales), fototerapia, hasta regímenes sistémicos. Estos últimos generalmente conllevan efectos secundarios cuando son utilizados a largo plazo. Hoy en día, gracias a los últimos avances científicos, se ha logrado profundizar el entendimiento de la patogénesis de la psoriasis, dando lugar a terapias específicamente dirigidas conocidas como “biológicos”. A continuación se discutirán los principales biológicos utilizados en el tratamiento de la psoriasis en placa moderada a severa: efalizumab, alefacept, etanercept, infliximab, adalimumab e inhibidores de la interleuquina (IL) 12/23.


Psoriasis is a chronic T cell-mediated inflammatory disease that mainly affects the skin and joints, and is present in 1 percent-3 percent of world population. It is also associated to other inflammatory conditions such as inflammatory intestinal disease and coronary pathologies, among others. Conventional treatments for moderate to severe psoriasis are associated to broad band immunosuppression and/or organ-toxicities which can be problematic when used in a long-term. Advances in the understanding of psoriasis pathogenesis have led to targeted therapy in the form of biologics. These agents have gained popularity as safe, effective and convenient alternatives for the treatment of chronic moderate to severe plaque psoriasis. This review focuses on the main biologics used in the treatment of moderate to severe plaque psoriasis: efalizumab, alefacept, etanercept, infliximab, adalimumab and interleukin inhibitors (IL) 12/23. Mechanisms of action, guidelines for usage, efficacy data, and safety concerns will be discussed for each biologic. In addition, the new Th17 biologics and their role in psoriasis pathogenesis will also be examined.


Subject(s)
Humans , Dermatologic Agents/therapeutic use , Antibodies, Monoclonal/therapeutic use , Psoriasis/drug therapy , Receptors, Tumor Necrosis Factor/therapeutic use , Dermatologic Agents/pharmacology , Antibodies, Monoclonal/pharmacology , Psoriasis/etiology , Receptors, Tumor Necrosis Factor/administration & dosage
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