alexa Deactivation of endothelium and reduction in angiogenesis in psoriatic skin and synovium by low dose infliximab therapy in combination with stable methotrexate therapy: a prospective single-centre study.
Dermatology

Dermatology

Journal of Clinical & Experimental Dermatology Research

Author(s): Goedkoop AY, Kraan MC, Picavet DI, de Rie MA, Teunissen MB,

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Abstract Psoriasis and psoriatic arthritis are inflammatory diseases that respond well to anti-tumour necrosis factor-alpha therapy. To evaluate the effects of anti-tumour necrosis factor-alpha treatment on expression of adhesion molecules and angiogenesis in psoriatic lesional skin and synovial tissue, we performed a prospective single-centre study with infliximab therapy combined with stable methotrexate therapy. Eleven patients with both active psoriasis and psoriatic arthritis received infusions of infliximab (3 mg/kg) at baseline, and at weeks 2, 6, 14 and 22 in an open-label study. In addition, patients continued to receive stable methotrexate therapy in dosages ranging from 5 to 20 mg/week. Clinical assessments, including Psoriasis Area and Severity Index (PASI) and Disease Activity Score (DAS), were performed at baseline and every 2 weeks afterward. In addition, skin biopsies from a target psoriatic plaque and synovial tissue biopsies from a target joint were taken before treatment and at week 4. Immunohistochemical analysis was performed to detect the number of blood vessels, the expression of adhesion molecules and the presence of vascular growth factors. Stained sections were evaluated by digital image analysis. At week 16, the mean PASI was reduced from 12.3 +/- 2.4 at baseline to 1.8 +/- 0.4 (P This article was published in Arthritis Res Ther and referenced in Journal of Clinical & Experimental Dermatology Research

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