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 desquamation by modulating the activity of the desquamatory enzymes, and specifically stratum corneum chymotryptic enzyme (SCCE). Using a novel air interface in vitro desquamatory model, we demonstrated RH-dependent corneocyte release with desquamatory rates decreasing below 80% RH. Application of 10% glycerol or a glycerol-containing moisturizing lotion further increased desquamation, even in humid conditions, demonstrating that water was the rate-limiting factor in the final stages of desquamation. Furthermore, even in humid conditions desquamation was sub-maximal. In situ stratum corneum SCCE activity showed a dependence on RH: activity was significantly higher at 100% than at 44% RH. Further increases in SCCE activity were induced by applying a 10% glycerol solution. Since SCCE, a water-requiring enzyme, must function in the water-depleted outer stratum corneum, we sought to determine whether this enzyme has a tolerance to lowered water activity. Using concentrated sucrose solutions to lower water activity, we analysed the activity of recombinant SCCE and compared it to that of trypsin and chymotrypsin. SCCE activity demonstrated a tolerance to water restriction, and this may be an adaptation to maintain enzyme activity even within the water-depleted stratum corneum intercellular space. Overall these findings support the concept that in the upper stratum corneum, RH modulates desquamation by its effect upon SCCE activity, and possibly other desquamatory hydrolases. In addition, SCCE may be adapted to function in the water-restricted stratum corneum intercellular space.
journal_name
Arch Dermatol Resjournal_title
Archives of dermatological researchauthors
Watkinson A,Harding C,Moore A,Coan Pdoi
10.1007/s004030100257keywords:
subject
Has Abstractpub_date
2001-09-01 00:00:00pages
470-6issue
9eissn
0340-3696issn
1432-069Xjournal_volume
293pub_type
杂志文章abstract::The distribution of several markers of keratinocyte differentiation was studied in normal epidermis, basal cell carcinomas (BCCs), and squamous cell carcinomas (SCCs) using the immunoperoxidase technique on frozen sections of punch biopsy specimens. As markers a panel of chain-specific monoclonal antibodies (MoAbs) di...
journal_title:Archives of dermatological research
pub_type: 杂志文章
doi:10.1007/BF00426583
更新日期:1989-01-01 00:00:00
abstract::The incidence of epithelioid sarcoma among patients with malignant soft tissue tumors is small, but the rates of recurrence and metastasis of this type of sarcoma are high. To date, effective chemotherapy for advanced epithelioid sarcoma has not been established and, furthermore, epithelioid sarcoma is known to exhibi...
journal_title:Archives of dermatological research
pub_type: 杂志文章
doi:10.1007/s004030000127
更新日期:2000-06-01 00:00:00
abstract::In order to improve the characterization of human malignant melanoma cells and their variant gene expression in vitro, a search for specifically regulated genes was performed. Four melanoma cell lines (M5, MEWO, IGR39, SKMEL13) and newly cultured normal human melanocytes were included in a comparative hybridization (d...
journal_title:Archives of dermatological research
pub_type: 杂志文章
doi:10.1007/BF00373422
更新日期:1995-01-01 00:00:00
abstract::The effect of 12-O-tetradecanoylphorbol-13-acetate (TPA) and epidermal growth factor (EGF) on type-IV-procollagen (basement-membrane collagen) and laminin synthesis, turnover, and secretion was studied in human A431 squamous epidermoid carcinoma cells. Type-IV procollagen and laminin were biochemically and immunologic...
journal_title:Archives of dermatological research
pub_type: 杂志文章
doi:10.1007/BF00509237
更新日期:1985-01-01 00:00:00
abstract::Splenopentin (SP-5: Arg-Lys-Glu-Val-Tyr), a pentapeptide corresponding to the residues 32-36 of the splenic hormone splenin, increases dose-dependently the number of bone marrow colonies (M and GM colonies). Therefore, we tested the stimulatory effect of SP-5 on the recruitment of epidermal Langerhans cells in skin de...
journal_title:Archives of dermatological research
pub_type: 杂志文章
doi:10.1007/BF00412738
更新日期:1990-01-01 00:00:00
abstract::Despite the fact that polymorphous light eruption (PLE) is the most common photodermatosis, affecting 15% of healthy people in the UK, its pathogeny remains unclear. The condition is more frequent in females and begins often in young adults and in mid-adult life. The mechanism of PLE is under active research as shown ...
journal_title:Archives of dermatological research
pub_type: 信件
doi:10.1007/s00403-004-0508-x
更新日期:2004-10-01 00:00:00
abstract::Thymocyte selection-associated high-mobility group box (TOX) is aberrantly expressed in cutaneous T-cell lymphomas. In a recent study, TOX expression was noted unexpectedly in the follicle center (germinal center) B-cells of reactive lymph nodes and tonsils, used as external controls. To evaluate whether TOX is also e...
journal_title:Archives of dermatological research
pub_type: 杂志文章
doi:10.1007/s00403-016-1654-7
更新日期:2016-08-01 00:00:00
abstract::Interleukin-6 (IL-6) is a multifunctional cytokine which has been suggested to function as an autocrine mitogen in psoriatic epidermis. We report here the results of several experiments designed to further examine this hypothesis. Blot hybridization was unable to detect 1.3 kb IL-6 transcripts in RNA extracted from no...
journal_title:Archives of dermatological research
pub_type: 杂志文章
doi:10.1007/BF00372034
更新日期:1992-01-01 00:00:00
abstract::The topical application of a mixture of sugar and povidone--iodine (PI) has been reported to accelerate the healing of cutaneous wounds and ulcers by promoting re-epithelialization and granulation tissue formation as well as having an anti-microbial effect. To clarify the mechanisms accounting for the efficacy of a 70...
journal_title:Archives of dermatological research
pub_type: 杂志文章
doi:10.1007/s00403-006-0683-z
更新日期:2006-09-01 00:00:00
abstract::Psoriasis, a chronic inflammatory skin disease, is associated with oxidative stress of serum lipoproteins. In psoriatic children we evaluated the activity and levels of myeloperoxidase, the activity of paraoxonase-1 (PON1) and biochemical markers of lipid peroxidation, to investigate wether an unbalance between oxidan...
journal_title:Archives of dermatological research
pub_type: 杂志文章
doi:10.1007/s00403-019-01976-z
更新日期:2020-01-01 00:00:00
abstract::Previous studies showed an association between various dermatological diseases and epicardial fat thickness (EFT). However, EFT, which has been accepted as a cardiometabolic risk factor in recent years, has not been studied in the context of hidradenitis suppurativa (HS). Therefore, we aimed to determine whether EFT i...
journal_title:Archives of dermatological research
pub_type: 杂志文章
doi:10.1007/s00403-019-02032-6
更新日期:2020-09-01 00:00:00
abstract::Interferon-alpha combined with retinoid or PUVA is used for the treatment of cutaneous T-cell lymphoma. Anti-IFN-alpha antibodies (IFN ab) occur regularly during IFN-alpha treatment. We investigated the incidence of neutralizing and binding IFN ab and analysed their relationship with clinical and immunological paramet...
journal_title:Archives of dermatological research
pub_type: 杂志文章
doi:10.1007/BF02505252
更新日期:1996-08-01 00:00:00
abstract::Sphingosylphosphorylcholine (SPC) has been reported to stimulate wound healing by its potent mitogenic effect. Fibronectin (FN) is a cell-adhesion protein that plays an important role in cell migration and collagen deposition during wound healing. In order to elucidate further the mechanism involved in the accelerated...
journal_title:Archives of dermatological research
pub_type: 杂志文章
doi:10.1007/s00403-002-0357-4
更新日期:2003-01-01 00:00:00
abstract::Topical vitamin D3 has relatively recently been introduced for the treatment of psoriasis. Synthetic vitamin D3 analogues with a high potential for inducing differentiation of cells, but with a low hypercalcemic effect have recently been developed. One such synthetic analogue of 1,25-dihydroxyvitamin D3 (calcitriol), ...
journal_title:Archives of dermatological research
pub_type: 杂志文章
doi:10.1007/s004030050444
更新日期:1999-09-01 00:00:00
abstract::Treatment of murine skin grafts in vitro with 8-methoxypsoralen and longwave ultraviolet radiation prolonged their subsequent survival on allogeneic recipients, but not in cases where the recipients had been presensitized by a former skin graft of the same donor strain. In contrast to normal skin, grafts pretreated wi...
journal_title:Archives of dermatological research
pub_type: 杂志文章
doi:10.1007/BF00511060
更新日期:1984-01-01 00:00:00
abstract::A novel point mutation in a patient with vascular type Ehlers-Danlos syndrome is herein reported. The patient experienced pneumothorax and multiple arterial troubles during the past 10 years. The patient's hand skin was atrophic, and a paper-like atrophic scar was seen. The collagen microfibrils from the patient's ski...
journal_title:Archives of dermatological research
pub_type: 杂志文章
doi:10.1007/s00403-008-0884-8
更新日期:2008-10-01 00:00:00
abstract::Tympanic (Tty), esophageal (Tes), forehead, and hand skin temperatures, as well as the forehead evaporation rate were recorded in six men (four suffering from rosacea and two healthy controls) before, during, and after 1 h of warm bath (38 degrees-39 degrees C). During the last 30 min of the bath, the subject's face w...
journal_title:Archives of dermatological research
pub_type: 杂志文章
doi:10.1007/BF00424276
更新日期:1989-01-01 00:00:00
abstract::To find novel depigmenting agents, a new synthetic compound, N-adamantyl-3,4-dihydroxybenzamide (NADB) was produced and the effects on melanogenesis were investigated. Our results showed that NADB reduced melanin synthesis in a dose-dependent manner in melan-a cells. Tyrosinase activity was also reduced by NADB treatm...
journal_title:Archives of dermatological research
pub_type: 杂志文章
doi:10.1007/s00403-010-1079-7
更新日期:2011-04-01 00:00:00
abstract::The stimulation or inhibition of adenylate cyclase by hormones and chemicals is mediated by the stimulatory or inhibitory guanine nucleotide-binding proteins, Gs and Gi respectively. Although the presence of these G-proteins in the epidermis has been suggested, no direct information regarding their nature has been ava...
journal_title:Archives of dermatological research
pub_type: 杂志文章
doi:10.1007/BF00372090
更新日期:1990-01-01 00:00:00
abstract::The goal of this study is to investigate commercially available cosmetics (foundations, skin care creams) which also claim to include a sun protection factor (SPF). Are these products, which are not considered sunscreen products, helpful or could they be harmful? Using an in vitro method, we tested the effectiveness o...
journal_title:Archives of dermatological research
pub_type: 杂志文章
doi:10.1007/s00403-009-0974-2
更新日期:2009-09-01 00:00:00
abstract::This study was designed to investigate the proliferative activity of the buccal mucosa in healthy adult persons with regard to individual age. Punch biopsy specimens were taken from the buccal mucosa of 19 individuals (10 females, 9 males) ranging in age from 24 to 80 years, and were then examined autoradiographically...
journal_title:Archives of dermatological research
pub_type: 杂志文章
doi:10.1007/BF00407881
更新日期:1979-06-25 00:00:00
abstract::Costimulation of anti-CD3-triggered proliferative T-cell responses by type I and type IV collagen and fibronectin was studied in 25 patients with psoriasis and 12 healthy subjects. The stimulation index of anti-CD3-mediated responses in the presence of type I collagen was about half that in the controls. Although the ...
journal_title:Archives of dermatological research
pub_type: 杂志文章
doi:10.1007/BF01262328
更新日期:1995-01-01 00:00:00
abstract::Tranilast is used clinically as a drug for hypertrophic scars or keloids. Recently, the roles of keratinocytes in the pathogenesis of those conditions have been noted. Therefore, we first examined the effect of tranilast on the cell growth of normal human keratinocytes. A cell growth assay demonstrated that the cell n...
journal_title:Archives of dermatological research
pub_type: 杂志文章
doi:10.1007/s00403-012-1291-8
更新日期:2012-11-01 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::Accumulating evidence shows that tight junctions (TJs) in the granular layer contribute to the epidermal barrier, suggesting that the regulation of TJ assembly in keratinocytes may provide a clue to understanding the role of barrier formation in epidermis. In this study, we investigated the behavior of TJ-related mole...
journal_title:Archives of dermatological research
pub_type: 杂志文章
doi:10.1007/s00403-008-0868-8
更新日期:2008-10-01 00:00:00
abstract::Stratum corneum forms the UV barrier. The effect of ultraviolet B (UVB) on normal skin was extensively studied; however, its effect on barrier perturbed skin remains undefined. Both barrier perturbation and UVB irradiation induce endoplasmic reticulum (ER) stress and unfolded protein response (UPR) in keratinocytes. M...
journal_title:Archives of dermatological research
pub_type: 杂志文章
doi:10.1007/s00403-017-1753-0
更新日期:2017-09-01 00:00:00
abstract::Primary hyperhidrosis is a condition characterized by excessive sweating. The estimated prevalence is between 0.6 and 4.4%, and it can have economic, psychological, and social consequences for affected individuals. Family and genetic studies have suggested a genetic component in the inheritance of the disease. In this...
journal_title:Archives of dermatological research
pub_type: 杂志文章,评审
doi:10.1007/s00403-019-01966-1
更新日期:2019-12-01 00:00:00
abstract::Atopic dermatitis (AD) can be exacerbated by various factors, including emotional stress, scratching and sweating. The aim of the present study was to evaluate the hypothesis that the inflammatory reaction in AD is also neurogenic. For this purpose, the levels of vasoactive intestinal polypeptide were measured radioim...
journal_title:Archives of dermatological research
pub_type: 杂志文章
doi:10.1007/BF01106107
更新日期:1991-01-01 00:00:00
abstract::The dermal papilla plays pivotal roles in hair follicle cycle and dermal papilla cells (DPCs) with aggregative behavior have more obviously inductive ability. In the present study, the suppression subtractive hybridization method was employed to identify the differentially expressed genes in dermal papillae cells with...
journal_title:Archives of dermatological research
pub_type: 杂志文章
doi:10.1007/s00403-005-0583-7
更新日期:2005-09-01 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