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Rossing, K.* ; Novak, N.* ; Mommert, S.* ; Pfab, F. ; Gehring, M.* ; Wedi, B.* ; Kapp, A.* ; Raap, U.*

Brain-derived neurotrophic factor is increased in serum and skin levels of patients with chronic spontaneous urticaria.

Clin. Exp. Allergy 41, 1392-1399 (2011)
DOI PMC
Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
Chronic spontaneous urticaria is triggered by many direct and indirect aggravating factors including autoreactive/autoimmune mechanisms, infections, non-allergic and pseudoallergic intolerance reactions. However, the role of neuroimmune mechanisms in chronic spontaneous urticaria so far is unclear. Thus, we wanted to address the regulation of the neurotrophin brain-derived neurotrophic factor (BDNF) in serum and inflammatory skin of patients with chronic spontaneous urticaria in comparison to subjects with healthy skin. Fifty adult patients with chronic spontaneous urticaria and 23 skin-healthy subjects were studied. Chronic spontaneous urticaria was defined as recurrent weals for more than 6 weeks. Autologous serum skin test was performed in all patients with chronic spontaneous urticaria and BDNF serum levels were analysed by enzyme immunoassay in all subjects. Furthermore, skin biopsies were taken from weals of eight patients with chronic spontaneous urticaria as well as from healthy skin of eight controls to evaluate the expression of BDNF and its receptors including tyrosine kinase (trk) B and pan-neurotrophin receptor p75(NTR) by immunohistochemistry. RESULTS: BDNF serum levels were detectable in all subjects studied. However, BDNF levels were significantly higher in patients with chronic spontaneous urticaria compared to non-atopic skin-healthy controls (P<0.001). Furthermore, epidermal and dermal expression of BDNF and epidermal expression of p75(NTR) was significantly higher in patients with chronic spontaneous urticaria compared with controls (P<0.05-0.001). There was no difference with regard to the expression of trkB between chronic spontaneous urticaria and controls and no difference in BDNF serum levels between autologous serum skin test-positive (n=23) and -negative (n=27) patients with chronic spontaneous urticaria. CONCLUSIONS AND CLINICAL RELEVANCE: This study shows that BDNF is increased in serum and diseased skin of patients with chronic spontaneous urticaria, suggesting a role for neurotrophins in the pathophysiology of this chronic inflammatory skin disease. Further studies are needed to address the functional role of BDNF on key target effector cells in chronic spontaneous urticaria to establish new therapeutic implications
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter brain-derived neurotrophic factor; chronic spontaneous urticaria; eosinophils; neurotrophins; skin inflammation
Sprache englisch
Veröffentlichungsjahr 2011
HGF-Berichtsjahr 2011
ISSN (print) / ISBN 0954-7894
e-ISSN 1365-2222
Zeitschrift Clinical & Experimental Allergy
Quellenangaben Band: 41, Heft: 10, Seiten: 1392-1399 Artikelnummer: , Supplement: ,
Verlag Wiley
Verlagsort Oxford, UK
Begutachtungsstatus Peer reviewed
Institut(e) Institute of Lung Health and Immunity (LHI)
Institute of Epidemiology (EPI)
POF Topic(s) 30202 - Environmental Health
PSP-Element(e) G-521200-001
FE 73991
PubMed ID 21676041
DOI 10.1111/j.1365-2222.2011.03795.x
Erfassungsdatum 2011-12-31
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