Abstract:
:Contact allergens induce several accessory signals which promote the activation of antigen-specific T cells. One of these signals is the increased expression of adhesion molecules on antigen-presenting cells and endothelial cells. Epicutaneous application of non-toxic doses of 2,4-dinitrofluorobenzene (DNFB) onto the skin of non-sensitized individuals elicited progressive staining for ICAM-1 on dermal microvascular endothelial cells. To elucidate the question of whether contact allergens can act directly on endothelial cells to elevate their expression of surface structures that bind leukocytes, confluent monolayers of human umbilical vein endothelial cells were incubated with the contact allergens NiSO4, CoSO4 or DNFB. The ICAM-1, E-selectin and HLA-DR expression were quantified by immunofluorescence flow cytometric analysis. Furthermore VCAM-1, E-selectin and ICAM-1 transcription were demonstrated by Northern blot hybridization. Constitutive ICAM-1 expression on HUVEC increased similarly to that obtained after LPS (20 micrograms/ml) stimulation after 4 and 24 hours of incubation with 1 or 2 mM NiSO4 or CoSO4, respectively. Pulse-stimulation with 100 or 500 nM DNFB resulted in a modest but significant increase of ICAM-1-positive cells. E-selectin and VCAM-1 were not expressed on untreated HUVEC; 4 to 6 hours exposure to nickel sulfate and LPS resulted in a potent induction of E-selectin and VCAM-1 expression. DNFB and PMA had no significant influence on VCAM-1 expression. None of the tested contact allergens was capable of inducing HLA-DR expression on EC at 48 to 72 hours. Enhanced expression of adhesion molecules may be an important early unspecific mechanism for induction and elicitation of a contact dermatitis.
journal_name
Exp Dermatoljournal_title
Experimental dermatologyauthors
Wildner O,Lipkow T,Knop Jdoi
10.1111/j.1600-0625.1992.tb00188.xsubject
Has Abstractpub_date
1992-11-01 00:00:00pages
191-8issue
4eissn
0906-6705issn
1600-0625journal_volume
1pub_type
杂志文章abstract::SHARPIN is an important component of the linear ubiquitin chain assembly complex (LUBAC). Loss of function of SHARPIN results in eosinophilic inflammation in multiple organs including skin with Th2 -dominant cytokines and dysregulated development of lymphoid tissues in mice. The clinicopathological features are simila...
journal_title:Experimental dermatology
pub_type: 杂志文章
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abstract::Skin irritation is one of the most common adverse reactions in hydroquinone (HQ) and retinoic acid (RA). Although melanocytes have rarely been considered to be involved in skin irritation, RA and particularly HQ could induce melanocyte toxicity, resulting in depigmentation. We chose S100B as a candidate gene for melan...
journal_title:Experimental dermatology
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abstract::Opioids exert major effects not only in the central nervous system but also in immune responses. We investigated the effects of μ-opioid peptides, secreted by tumor cells, on anti-tumor immune responses. For this purpose, tumor growth was studied in wild-type and μ-opioid receptor-deficient (MOR-/-) mice injected with...
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journal_title:Experimental dermatology
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journal_title:Experimental dermatology
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doi:10.1111/j.1600-0625.2008.00713.x
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journal_title:Experimental dermatology
pub_type: 杂志文章
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journal_title:Experimental dermatology
pub_type: 杂志文章
doi:10.1111/j.1600-0625.1995.tb00219.x
更新日期:1995-02-01 00:00:00
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journal_title:Experimental dermatology
pub_type: 杂志文章
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pub_type: 评论,杂志文章
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journal_title:Experimental dermatology
pub_type: 杂志文章,多中心研究,随机对照试验
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更新日期:2016-06-01 00:00:00
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journal_title:Experimental dermatology
pub_type: 杂志文章
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journal_title:Experimental dermatology
pub_type: 杂志文章,评审
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journal_title:Experimental dermatology
pub_type: 杂志文章
doi:10.1111/j.1600-0625.2007.00623.x
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journal_title:Experimental dermatology
pub_type: 信件
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pub_type: 信件
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更新日期:2013-03-01 00:00:00
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journal_title:Experimental dermatology
pub_type: 杂志文章
doi:10.1111/exd.12253
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pub_type: 杂志文章,评审
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journal_title:Experimental dermatology
pub_type: 信件
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journal_title:Experimental dermatology
pub_type: 杂志文章
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pub_type: 杂志文章
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journal_title:Experimental dermatology
pub_type: 杂志文章
doi:10.1111/j.1600-0625.1993.tb00034.x
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journal_title:Experimental dermatology
pub_type: 杂志文章
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journal_title:Experimental dermatology
pub_type: 杂志文章
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journal_title:Experimental dermatology
pub_type: 临床试验,杂志文章
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更新日期:1992-07-01 00:00:00
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pub_type: 杂志文章
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更新日期:2016-11-01 00:00:00
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journal_title:Experimental dermatology
pub_type: 杂志文章
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journal_title:Experimental dermatology
pub_type: 杂志文章
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更新日期:2010-10-01 00:00:00
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journal_title:Experimental dermatology
pub_type: 杂志文章,评审
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更新日期:2012-04-01 00:00:00
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journal_title:Experimental dermatology
pub_type: 杂志文章
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更新日期:2021-01-01 00:00:00