Abstract：
:An increase in phosphodiesterase 4 (PDE4) in blood mononuclear white cells of patients with atopic dermatitis (AD) has been described. This and other skin disorders worsen during stress, during which there are increased circulating levels of adrenaline and glucocorticoids. The aim of this study was to analyse the effect of both these hormones on PDE4 in inflammatory cells. The human monocyte cell line U-937 was used as a model of blood mononuclear leucocytes. For this purpose, (1) the effect of adrenaline on PDE4 activity was determined, (2) the receptor mediating adrenaline actions was characterized, (3) the role of intracellular cAMP in PDE4 activation was investigated and (4) the effect of glucocorticoids on PDE4 activity was also ascertained. Adrenaline at a concentration of 1 micro M produced a two- to threefold selective increase in PDE4 activity in U-937 cells after 4 h of incubation with the hormone. This stimulation was reversible, as well as concentration- and time-dependent. Cycloheximide (10 micro M) induced a blockade of adrenaline-induced stimulation of PDE4. The stimulatory effect was inhibited by propranolol, but not by atenolol or phentolamine, in a concentration-dependent manner and was mimicked by salbutamol. The stimulation of PDE4 was paralleled by an increase in intracellular levels of cAMP. 8-Br-cAMP and forskolin also increased PDE4 activity. After 4 h of incubation in the presence of adrenaline, inhibition of cAMP degradation by rolipram further increased cAMP levels by about 300% and also enhanced PDE4 activity. These results suggest that adrenaline-induced stimulation of PDE4 is mediated by the beta(2)-adrenoceptor and is related to intracellular levels of cAMP, which might trigger expression and synthesis of the enzyme. The synthetic glucocorticoid dexamethasone (in the concentration range 10(-8) to 10(-6) M) showed no effect on PDE4 activity or on the cAMP accumulation induced by adrenaline, even after prolonged (24 h) incubation with the cells. Of the two stress hormones assayed, PDE4 activity was shown to be sensitive to adrenaline elevation but resistant to changes in glucocorticoid levels in the U-937 monocytic cell line.
journal_name
Arch Dermatol Resjournal_title
Archives of dermatological researchauthors
Delgado M,Fernández-Alfonso MS,Fuentes Adoi
10.1007/s00403-002-0313-3keywords:
subject
Has Abstractpub_date
2002-07-01 00:00:00pages
190-7issue
4eissn
0340-3696issn
1432-069Xjournal_volume
294pub_type
杂志文章abstract：:Immigration of neutrophils into the epidermis is a hallmark of several so-called neutrophilic dermatoses. In this study we used a frozen section adhesion assay to study the impact of different activation procedures as well as of CD11 integrins on cell-cell adhesion between neutrophils and epidermal cells. Serial secti...
journal_title：Archives of dermatological research
pub_type： 杂志文章
doi：10.1007/s004030050263
更新日期：1997-11-01 00:00:00
abstract：:The histological and ultrastructural effects following 3 weeks' topical treatment with two agents (all-trans retinoic acid and a new synthetic retinoid-like substance, CD271) were evaluated on the epidermis and the epithelial wall of the pseudocomedones in rhino mouse skin. The comedolytic effects of these drugs were ...
journal_title：Archives of dermatological research
pub_type： 杂志文章
doi：10.1007/BF00371617
更新日期：1991-01-01 00:00:00
abstract：:The effect of skin delipidization in humans on the percutaneous penetration of hydrocortisone was investigated in a cross-over trial. The delipidizing agent was 1:1:1 trichloroethane, a common industrial organic solvent. The findings do not show any significant difference in the topical absorption of hydrocortisone wi...
journal_title：Archives of dermatological research
pub_type： 杂志文章
doi：10.1007/BF00416669
更新日期：1983-01-01 00:00:00
abstract：:To have as further insight into the localizations of immune deposits in the skin the reversed passive and the passive Arthus reactions were carried out in the foot-pads skin of guinea-pigs using horseradish peroxidase as antigen. The transient localizations of immune deposits in the papillary dermis and in the epiderm...
journal_title：Archives of dermatological research
pub_type： 杂志文章
doi：10.1007/BF00404457
更新日期：1980-01-01 00:00:00
abstract：:Solar ultraviolet (UV) irradiation causes damages on human skin and premature skin aging (photoaging). UV-induced reduction of type I collagen in dermis is widely considered primarily induction of wrinkled appearance of photoaging skin. Type I procollagen synthesis is reduced under UV irradiation by blocking transform...
journal_title：Archives of dermatological research
pub_type： 杂志文章
doi：10.1007/s00403-007-0805-2
更新日期：2008-04-01 00:00:00
abstract：:Tumor-associated antigens were demonstrated in phenol water extracts of human malignant melanoma by migration tests with leukocytes from melanoma patients and controls: in 25 out of 60 melanoma patients weak reactivity was observed, usually stimulation of leukocyte migration, while leukocytes from 37 controls were neg...
journal_title：Archives of dermatological research
pub_type： 杂志文章
doi：10.1007/BF00417277
更新日期：1979-02-23 00:00:00
abstract：:Staphylococcus aureus is a common wound-infecting organism which can interact with cells via the extracellular matrix protein fibronectin (FN). The aim of this study was to determine the effect of the FN-binding protein (FnBP) of S. aureus on the behaviour of a human skin keratinocytes cell line (UP). FN-coated plates...
journal_title：Archives of dermatological research
pub_type： 杂志文章
doi：10.1007/s00403-004-0515-y
更新日期：2004-11-01 00:00:00
abstract：:The expression of IL-8 in psoriasis has been clearly shown with the use of immunocytochemical, RT-PCR and in situ hybridization methods. The presence of its ligand, the IL-8 receptor, has been demonstrated by the RT-PCR technique. We report here a study of the expression of both IL-8 type A and B receptors by immunohi...
journal_title：Archives of dermatological research
pub_type： 杂志文章
doi：10.1007/s004030050218
更新日期：1997-07-01 00:00:00
abstract：:Mast cell chymase is a chymotrypsin-like serine proteinase primarily stored in secretory mast cell granules. Mast cell chymase has various effects on angiotensin, metalloproteases, lipoproteins, procollagen, neuropeptides and cytokines. Recent studies have demonstrated that chymase inhibitors inhibit skin inflammation...
journal_title：Archives of dermatological research
pub_type： 杂志文章
doi：10.1007/s00403-005-0542-3
更新日期：2005-04-01 00:00:00
abstract：:A 50-year-old male patient had three episodes of acrally located purpura within 12 years without any other symptoms. The first two episodes which lasted several months coincided with the intake of beta-blockers; the third episode developed after a respiratory infection. A cryofibrinogenemia was found without any evide...
journal_title：Archives of dermatological research
pub_type： 杂志文章
doi：10.1007/BF00585916
更新日期：1987-01-01 00:00:00
abstract：:Pathological alterations of capillaries, accelerated epidermopoesis, increased rate and extent of metabolism in the psoriatic lesion and first manifestation of psoriasis rarely in the first 20 years of life made us decide to investigate the human growth hormone (STH) in blood serum. In 70 patients suffering from psori...
journal_title：Archives of dermatological research
pub_type： 杂志文章
doi：10.1007/BF00408223
更新日期：1981-01-01 00:00:00
abstract：:Psoriasis is now recognized as an immune-mediated inflammatory dermatosis with increased risk for metabolic syndrome, its individual components, and cardiovascular disease. We quantitatively estimated malondialdehyde (MDA), lipoprotein-a (LP-a), lipoprotein ratios, comprehensive lipid tetrad index (CLTI), and atheroge...
journal_title：Archives of dermatological research
pub_type： 杂志文章
doi：10.1007/s00403-019-01896-y
更新日期：2019-05-01 00:00:00
abstract：:When determined in vitro, the SPF of certain commercial sunscreen products can be lower than the SPF indicated on the label. The study of the composition of this type of product enabled us to note that the majority contained substances reputed to have anti-inflammatory properties. This effect is shown by inhibiting th...
journal_title：Archives of dermatological research
pub_type： 杂志文章
doi：10.1007/s00403-012-1257-x
更新日期：2012-12-01 00:00:00
abstract：:Artificial light at night (LAN) is a pervasive phenomenon in today's society, and the detrimental consequences of LAN exposure are becoming apparent. LAN is associated with the increased incidence of metabolic disorders, cancers, mood alterations, and immune dysfunction in mammals. Consequently, we examined the effect...
journal_title：Archives of dermatological research
pub_type： 杂志文章
doi：10.1007/s00403-019-01935-8
更新日期：2019-09-01 00:00:00
abstract：:Delayed pressure urticaria (DPU) is characterized by deep dermal wheals that appear in response to a local continuous pressure. Although it has been reported to complicate as many as 40% of cases of Caucasian patients with chronic urticaria, no definitive cases of Asian/Japanese patients have been reported in English ...
journal_title：Archives of dermatological research
pub_type： 杂志文章
doi：10.1007/s00403-010-1053-4
更新日期：2010-10-01 00:00:00
abstract：:Primary cultures of guinea pig ear keratinocytes were treated with vitamin A acid at plating, or at 14 h or 14 days after plating. The intracellular content of the cyclic nucleotides cAMP and cGMP was determined by radioimmunoassay at intervals during a period of 50 h after treatment. When added at plating, vitamin A ...
journal_title：Archives of dermatological research
pub_type： 杂志文章
doi：10.1007/BF00416918
更新日期：1980-01-01 00:00:00
abstract：:Thrombin has recently been shown not only to exert procoagulant activities, but also to induce mitogenic responses of different cell types involved in wound healing via binding to and cleavage of the thrombin receptor. In order to further explore these aspects of thrombin function, human keratinocytes (HaCaT cell line...
journal_title：Archives of dermatological research
pub_type： 杂志文章
doi：10.1007/s004030000168
更新日期：2000-10-01 00:00:00
abstract：:The safety and efficacy of imiquimod 5% cream is being evaluated for the treatment of dysplastic lesions of the epidermis (actinic keratoses, AK). The objective of this clinical study was to describe the pharmacokinetics and safety of topical imiquimod during multiple dosing of AK subjects. A total of 58 adult subject...
journal_title：Archives of dermatological research
pub_type： 临床试验,杂志文章,多中心研究
doi：10.1007/s00403-004-0465-4
更新日期：2004-06-01 00:00:00
abstract：:Patients with atopic dermatitis (AD) often present with dry skin, and the reduced secretion of sebum may be responsible for the impaired skin barrier function. A sebum check film enables the patient to self-evaluate the skin sebum content. This study compared the sebum check film with a sebumeter. The skin sebum conte...
journal_title：Archives of dermatological research
pub_type： 杂志文章
doi：10.1007/s00403-010-1076-x
更新日期：2010-11-01 00:00:00
abstract：:The aim of this study was to investigate the presence and density of the nerve fibre-marker protein gene product 9.5 (PGP 9.5), with immunohistochemistry, in skin from patients with hidradenitis suppurativa (HS). Punch biopsies were obtained from 16 patients; 10 with involvement of the groin and six with axillary dise...
journal_title：Archives of dermatological research
pub_type： 杂志文章
doi：10.1007/s00403-010-1028-5
更新日期：2010-08-01 00:00:00
abstract：:The penetration and permeation of the recombinant protein plasminogen activator inhibitor type 2 (PAI-2) in two formulations, one containing a penetration enhancer, into the psoriatic and uninvolved skin of eight patients with plaque-type psoriasis were investigated. Penetration and permeation of PAI-2 were measured b...
journal_title：Archives of dermatological research
pub_type： 临床试验,杂志文章
doi：10.1007/s00403-003-0425-4
更新日期：2003-11-01 00:00:00
abstract：:An animal experiment is presented in which two groups of pigmented hairless mice were exposed daily to suberythemal doses of UVA to study tumourigenesis. The aim of the study was to estimate the carcinogenic risks of tanning by UVA. The pigmented hairless mice, Skh-hr2, were separated by selective breeding into two gr...
journal_title：Archives of dermatological research
pub_type： 杂志文章
doi：10.1007/BF00375721
更新日期：1990-01-01 00:00:00
abstract：:Fingernail growth was studied in 28 patients who were receiving systemic treatment with the aromatic retinoid, Ro 10-9359 known as Tigason (etretinate; AR). A group of 15 patients with psoriasis was compared with a group of 13 patients with other dermatoses which are known to have a good response to AR therapy. In the...
journal_title：Archives of dermatological research
pub_type： 杂志文章
doi：10.1007/BF00414112
更新日期：1985-01-01 00:00:00
abstract：:The effects of acidic and basic fibroblast growth factors (aFGF and bFGF, respectively) on proliferation and differentiation of cultured hair apparatus cells were examined using bovine pituitary extract (BPE)-free media. The importance of FGFs as growth factors in BPE was also examined. Both FGFs and BPE stimulated ce...
journal_title：Archives of dermatological research
pub_type： 杂志文章
doi：10.1007/BF00371577
更新日期：1994-01-01 00:00:00
abstract：:Hydroperoxides of d-limonene were shown to be potent contact allergens when studied in guinea-pigs. Limonene-2-hydroperoxide (2-hydroperoxy-p-mentha-6,8-diene, a mixture of trans and cis isomers) was synthesized for the first time. The ratio between the trans and cis forms was 3:1. These two hydroperoxides were identi...
journal_title：Archives of dermatological research
pub_type： 杂志文章
doi：10.1007/BF00370734
更新日期：1994-01-01 00:00:00
abstract：:Melanoma incidence in Australia remains the highest in the world; hence understanding its causation is paramount for future therapeutic developments. Multiple primary melanomas are also common occurrences among the Australian population with identified risk factors such as personal and family history of melanoma, fair...
journal_title：Archives of dermatological research
pub_type： 杂志文章
doi：10.1007/s00403-015-1582-y
更新日期：2015-10-01 00:00:00
abstract：:Exposure to a dry environment leads to depletion of water from the peripheral stratum corneum layers in a process dependent on the relative humidity (RH) and the intrinsic properties of the tissue. We hypothesized that by modulating the water content of the stratum corneum in the surface layers, RH effects the rate of...
journal_title：Archives of dermatological research
pub_type： 杂志文章
doi：10.1007/s004030100257
更新日期：2001-09-01 00:00:00
abstract：:Interleukin-17 (IL-17) has been implicated in the pathogenesis of a large number of inflammatory and autoimmune conditions, including skin disorders such as psoriasis. Recently, much data have accumulated on the possible role of IL-17 in the pathogenesis of alopecia areata (AA). In this review, the available informati...
journal_title：Archives of dermatological research
pub_type： 杂志文章,评审
doi：10.1007/s00403-018-1823-y
更新日期：2018-07-01 00:00:00
abstract：:Genetic differences are involved in the development of lupus erythematosus (LE). Skin lesions are influenced by environmental triggers such as ultraviolet light, temperature, and chemical stresses, and the patterns of skin lesion are variable in cutaneous LE such as systemic LE (SLE), chronic discoid LE (CDLE), subacu...
journal_title：Archives of dermatological research
pub_type： 杂志文章,评审
doi：10.1007/s00403-008-0897-3
更新日期：2009-01-01 00:00:00
abstract：:Exposure of hairless mice to the light of a germicidal lamp (254 nm) under conditions which are known to induce epidermal DNA synthesis, cell proliferation, and polyamine metabolism produced a marked increase of polyamine excretion in the urine which lasted for many days. The increase was about the same for free and a...
journal_title：Archives of dermatological research
pub_type： 杂志文章
doi：10.1007/BF00417146
更新日期：1981-01-01 00:00:00
