Abstract:
BACKGROUND:Retinoic acid (RA) enhances skin-lightening capabilities of hydroquinone (HQ), at least in part, by facilitating desquamation which leads to increase penetration of HQ. The desquamation also affects skin irritation levels. The mechanism of RA-induced desquamation, however, has not been completely explored and no such data has been available for HQ uses. OBJECTIVE:To examine the role of HQ, RA, and their combination in the desquamation. METHODS:Primary cultured normal human keratinocytes, which were treated with HQ and/or RA in presence or absence of serine-specific inhibitor Kazal type5 (SPINK5)/lympho-epithelial Kazal-type-related inhibitor (LEKTI) knockdown or recombinant human SPINK5/LEKTI, and biopsied skin samples applied with HQ or RA were examined. Expression levels of corneodesmosin (CDSN), desmocollin1 (DSC1), kallikrein5 (KLK5), KLK7, and SPINK5/LEKTI, and proteolysis activity against extracted human skin epidermal protein were determined using time-course real-time PCR, Western blotting, ELISA, and immunofluorescence staining. RESULTS:HQ increased but RA decreased the synthesis of CDSN and DSC1. HQ reduced corneodesmosome degradation by the upregulation of SPINK5/LEKTI, whereas RA showed opposite results without upregulation of SPINK5/LEKTI. The combination of HQ and RA was close to the sum of the individual components. CONCLUSIONS:HQ reduced corneocyte desquamation. However, RA enhanced desquamation. The combination induced more desquamation than HQ but less than RA.
journal_name
J Dermatol Scijournal_title
Journal of dermatological scienceauthors
Cheong KA,Lee TR,Lee AYdoi
10.1016/j.jdermsci.2017.03.023subject
Has Abstractpub_date
2017-08-01 00:00:00pages
192-200issue
2eissn
0923-1811issn
1873-569Xpii
S0923-1811(16)31002-7journal_volume
87pub_type
杂志文章abstract::FK506, a new immunosuppressive agent, is effective in treating patients with psoriasis. A major feature of psoriasis vulgaris is the hyperproliferation of keratinocytes together with inflammation. To determine the effect of FK506 or cyclosporin A (CsA) on the keratinocyte cell cycle, flow cytometry and the growth fact...
journal_title:Journal of dermatological science
pub_type: 杂志文章
doi:10.1016/0923-1811(95)00480-7
更新日期:1996-09-01 00:00:00
abstract:BACKGROUND:Trichloroethylene (TCE) is an industrial solvent which can cause severe generalized dermatitis, i.e., occupational TCE hypersensitivity syndrome. Reactivation of latent human herpesvirus 6 (HHV6) can occur in such patients, which has made TCE known as a causative chemical of drug-induced hypersensitivity syn...
journal_title:Journal of dermatological science
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doi:10.1016/j.jdermsci.2013.07.003
更新日期:2013-12-01 00:00:00
abstract:BACKGROUND:Optical coherence tomography (OCT) is a promising non-invasive imaging technique that has not systematically been studied in skin cancer such as basal cell carcinoma (BCC). OBJECTIVE:We aimed, first, to describe the in vivo histologic features of BCC by using OCT, and second, to find out whether it is possi...
journal_title:Journal of dermatological science
pub_type: 临床试验,杂志文章
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更新日期:2007-03-01 00:00:00
abstract:UNLABELLED:The percutaneous absorption studies were performed using a flow-through diffusion cell system with skin specimens from 24 healthy women to assess the penetration of glycolic acid (GA). Percentages of GA, based on 14C-labelled activity, found in the skin after application of 4% GA at pH 2.0 or pH 3.8, after 2...
journal_title:Journal of dermatological science
pub_type: 杂志文章
doi:10.1016/s0923-1811(98)00039-5
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abstract::Examining damage (inactivation) of antioxidant enzymes in the cells and the pattern of recovery after a single UV exposure might be a useful method for analyzing the mechanisms of chronic UV irradiation, because chronic UV irradiation means repeated single exposures. We irradiated human skin fibroblasts with a single ...
journal_title:Journal of dermatological science
pub_type: 杂志文章
doi:10.1016/s0923-1811(96)00578-6
更新日期:1997-03-01 00:00:00
abstract::Crystalloid inclusion bodies (CIB) of the endothelial cells (EC) were investigated in blood vessels of human fetal skin and the umbilical cord by electron- and immunoelectron microscopy. They were found in up to 15% of the investigated EC in various types of vessels. Their sizes ranged from 0.2 microns to 0.6 microns ...
journal_title:Journal of dermatological science
pub_type: 杂志文章
doi:10.1016/0923-1811(91)90020-x
更新日期:1991-03-01 00:00:00
abstract:BACKGROUND:Glycolic acid (GA) is the most commonly used alpha-hydroxy acid (AHA) for dermatologic applications, and is considered as a versatile superficial peeling agent for facial rejuvenation. Its therapeutic effect includes acceleration of epidermal turnover without apparent inflammation, and its action is pH-depen...
journal_title:Journal of dermatological science
pub_type: 杂志文章
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更新日期:2010-02-01 00:00:00
abstract:BACKGROUND:Candidiasis is caused by several Candida species, of which Candida stellatoidea and C. dubliniensis are phenotypically close to C. albicans. Although current molecular biology-based techniques can distinguish between C. albicans and C. dubliniensis, a convenient tool that can distinguish C. stellatoidea from...
journal_title:Journal of dermatological science
pub_type: 杂志文章
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更新日期:2005-10-01 00:00:00
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journal_title:Journal of dermatological science
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abstract::Skin biopsies from four patients with similar clinical phenotypes of non-lethal junctional epidermolysis bullosa (JEB) were investigated by electron microscopy and immunohistochemistry. Electron microscopy revealed cleavage within the lamina lucida in each case, but in addition, there was considerable variability in t...
journal_title:Journal of dermatological science
pub_type: 杂志文章
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abstract:BACKGROUND:Atopic dermatitis (AD) is a highly pruritic, chronic inflammatory skin disease associated with hyperreactivity to environmental triggers. Among those, outdoor air pollutants such as particulate matter (PM) have been reported to aggravate pre-existing AD. However, underlying mechanisms of air pollution-induce...
journal_title:Journal of dermatological science
pub_type: 杂志文章
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abstract:BACKGROUND:Desmoglein 1 (Dsg1), the pemphigus foliaceus (PF) antigen, is produced as a precursor (preDsg1) and is transported to the cell surface as the mature form (matDsg1). Recent studies show that B cells from North American individuals without pemphigus can potentially produce anti-preDsg1 IgG antibodies, but ELIS...
journal_title:Journal of dermatological science
pub_type: 杂志文章
doi:10.1016/j.jdermsci.2013.02.002
更新日期:2013-04-01 00:00:00
abstract::We have examined the effects of four 'exogenous' growth factors, i.e. PDGF-BB (5 ng/ml), TGF-beta1 (5 ng/ml), bFGF (10 ng/ml) and EGF (10 ng/ml) on the contraction of floating collagen type I lattices populated by human normal skin (NS) and hypertrophic scar (HS) fibroblasts (FPCL). Only TGF-beta1 enhanced the contrac...
journal_title:Journal of dermatological science
pub_type: 杂志文章
doi:10.1016/s0923-1811(96)00571-3
更新日期:1997-02-01 00:00:00
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journal_title:Journal of dermatological science
pub_type: 杂志文章
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更新日期:1995-05-01 00:00:00
abstract::Two different melanocyte-specific mRNAs are studied as markers for circulating melanoma cells in vitro using the human melanoma cell line G361 and in vivo using blood samples from Japanese melanoma patients at different clinical stages. These mRNAs encode tyrosinase, the most essential enzyme for melanin synthesis, an...
journal_title:Journal of dermatological science
pub_type: 杂志文章
doi:10.1016/s0923-1811(99)00098-5
更新日期:2000-06-01 00:00:00
abstract::Large numbers of pigmented melanocytes are located in human hair follicles, predominantly around the dermal papillae, and the number of melanocytes and the melanogenic activity of the hair follicles are closely related to the hair cycle. We found that cultured human dermal papilla cells secreted a melanocyte chemoattr...
journal_title:Journal of dermatological science
pub_type: 杂志文章
doi:10.1016/s0923-1811(01)00145-1
更新日期:2002-01-01 00:00:00
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journal_title:Journal of dermatological science
pub_type: 杂志文章
doi:10.1016/j.jdermsci.2013.04.020
更新日期:2013-09-01 00:00:00
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journal_title:Journal of dermatological science
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journal_title:Journal of dermatological science
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pub_type: 杂志文章
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journal_title:Journal of dermatological science
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journal_title:Journal of dermatological science
pub_type: 杂志文章
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更新日期:2017-10-01 00:00:00
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journal_title:Journal of dermatological science
pub_type: 杂志文章
doi:10.1016/j.jdermsci.2012.05.005
更新日期:2012-08-01 00:00:00
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journal_title:Journal of dermatological science
pub_type: 杂志文章
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更新日期:2007-04-01 00:00:00
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journal_title:Journal of dermatological science
pub_type: 杂志文章,评审
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更新日期:2010-06-01 00:00:00
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journal_title:Journal of dermatological science
pub_type: 杂志文章
doi:10.1016/s0923-1811(00)00129-8
更新日期:2001-04-01 00:00:00
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journal_title:Journal of dermatological science
pub_type: 杂志文章
doi:10.1016/0923-1811(95)00486-6
更新日期:1996-10-01 00:00:00
abstract::It has recently been demonstrated that genetic defects in keratin genes cause a number of different skin disorders, including epidermolysis bullosa simplex (EBS), epidermolytic hyperkeratosis (EH), the EH form of epidermal nevi, epidermolytic and non-epidermolytic forms of palmoplantar keratoderma (EPPK and PPK) and p...
journal_title:Journal of dermatological science
pub_type:
doi:10.1016/s0923-1811(96)00568-3
更新日期:1996-12-01 00:00:00