Abstract：
BACKGROUND:Psoriasis is hallmarked by vascular dysfunction, arterial hypertension, and an increased risk for cardiovascular diseases. We have shown recently that skin-driven interleukin (IL)-17A expression promotes psoriasis-like disease in mice, and this is associated with vascular inflammation, vascular dysfunction, and hypertension. As an intensive risk-factor reduction is recommended for psoriasis patients, we aimed to elucidate the impact of the angiotensin II receptor type 1 (AT1) antagonist telmisartan in a mouse model of severe psoriasis-like skin disease. METHODS AND RESULTS:Elevated blood pressure measured by tail-cuff plethysmography in mice with keratinocyte-specific IL-17A overexpression (K14-IL-17Aind/+ mice) was significantly reduced in response to telmisartan. Importantly, vascular dysfunction, as assessed by isometric tension studies of isolated aortic rings, vascular inflammation measured by flow cytometry analysis of CD45+CD11b+ immune cells, as well as the increased peripheral oxidative stress levels assessed by L-012-enhanced chemiluminescence were not attenuated by telmisartan treatment of K14-IL-17Aind/+ mice, nor was the persisting skin inflammation. CONCLUSION:We provide first evidence for an effective antihypertensive treatment in experimental psoriasis by AT1 blockade, but without any impact on vascular inflammation and dysfunction in our mouse model of severe psoriasis-like skin disease. This suggests that vascular function and inflammation in psoriasis might not be attenuated as long as skin inflammation persists.
journal_name
Int J Mol Scijournal_title
International journal of molecular sciencesauthors
Wild J,Schüler R,Knopp T,Molitor M,Kossmann S,Münzel T,Daiber A,Waisman A,Wenzel P,Karbach SHdoi
10.3390/ijms20174261subject
Has Abstractpub_date
2019-08-30 00:00:00issue
17issn
1422-0067pii
ijms20174261journal_volume
20pub_type
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