Abstract:
:Epidermal growth factor receptor (EGFR) gene amplification and protein overexpression are common in several cancers. EGFR status has seldom been studied in cutaneous squamous carcinomas (SCCs), or their precursors, actinic keratoses (AKs). We evaluated the presence of EGFR genomic aberrations and EGFR protein overexpression in 25 AKs and 35 invasive SCCs by means of fluorescence in situ hybridization (FISH) and immunohistochemistry. EGFR numerical aberrations were detected in 52% of AKs and 77.1% of SCCs (P = 0.042). EGFR amplification was identified in 12% of AKs and 20% of SCCs. No differences regarding EGFR numerical aberrations were observed when AKs with high-grade dysplasia were compared with SCCs. A good correlation was observed between EGFR numerical aberrations and EGFR overexpression. Our results suggest that EGFR numerical aberrations occur in the early stages of epithelial carcinogenesis in skin, not playing a role in the progression from low-grade SCCs into more aggressive phenotypes.
journal_name
Exp Dermatoljournal_title
Experimental dermatologyauthors
Toll A,Salgado R,Yébenes M,Martín-Ezquerra G,Gilaberte M,Baró T,Solé F,Alameda F,Espinet B,Pujol RMdoi
10.1111/j.1600-0625.2009.01028.xsubject
Has Abstractpub_date
2010-02-01 00:00:00pages
151-3issue
2eissn
0906-6705issn
1600-0625pii
EXD1028journal_volume
19pub_type
信件abstract::Tissue-invasive T cells are observed in many inflammatory dermatological diseases, but in most cases, it is not known how they were attracted, what they might recognize, and to which extent they are activated. Answering these questions is surely essential for understanding pathogeneses of the diseases. In a recent iss...
journal_title:Experimental dermatology
pub_type: 评论,杂志文章
doi:10.1111/exd.12387
更新日期:2014-06-01 00:00:00
abstract::Antibodies, specific to murine DEC205, can be used to target antigens to dendritic cells. The immunodominant domain of human type XVII collagen, hNC16A, was fused to this antibody (DEC-hNC16A) and was administered as expression plasmid by gene gun transfection with the aim of inducing tolerance to human type XVII coll...
journal_title:Experimental dermatology
pub_type: 信件
doi:10.1111/j.1600-0625.2012.01474.x
更新日期:2012-05-01 00:00:00
abstract::Hair follicle central isthmus is surrounded by dense nerve endings and terminal Schwann cells (TSCs), forming a specialized sensory structure called lanceolate complexes. Extracellular matrix protein EGFL6 expressed from epidermis has been found closely associated with lanceolate complexes and important for proper ali...
journal_title:Experimental dermatology
pub_type: 杂志文章
doi:10.1111/exd.14085
更新日期:2020-04-01 00:00:00
abstract::Current gold standard lower extremity cutaneous wound management is not always effective. Cutaneous wounds generate a "current of injury" which is directly involved in wound healing processes. Application of exogenous electrical stimulation has been hypothesised to imitate the natural electric current that occurs in c...
journal_title:Experimental dermatology
pub_type: 杂志文章,评审
doi:10.1111/exd.13179
更新日期:2017-02-01 00:00:00
abstract::We have shown previously in psoriasis a very high prevalence of epidermodysplasia verruciforms-associated human papillomavirus 5 (EVHPV5) DNA and antibodies to human papillomavirus 5 (HPV5) virus-like particle (VLP) L1, and we suggested that this benign hyperproliferative disorder could be a reservoir for EVHPVs. Here...
journal_title:Experimental dermatology
pub_type: 杂志文章
doi:10.1111/j.0906-6705.2003.00125.x
更新日期:2003-12-01 00:00:00
abstract::The effects of prostaglandin (PG) I1 analog, SM-10906 (SM-6) and PGE1 on extracellular matrix formation and the release of cytokines by cultured normal human dermal fibroblasts (NDF) and hypertrophic scar fibroblasts (HSF) were compared in order to evaluate the clinical efficacy of PGs in preventing scar formation. In...
journal_title:Experimental dermatology
pub_type: 杂志文章
doi:10.1111/j.1600-0625.1997.tb00179.x
更新日期:1997-12-01 00:00:00
abstract::The reliability of the methods currently used for diagnosing hair loss is ill defined. We studied 41 subjects complaining of hair loss, including androgenetic alopecia and telogen effluvium, and compared the results obtained with the modified wash test (MWT) and TrichoScan(®) . Data were analysed statistically with th...
journal_title:Experimental dermatology
pub_type: 信件
doi:10.1111/exd.12164
更新日期:2013-07-01 00:00:00
abstract::Anthralin is a widely used topical anti-psoriatic drug that may have an immunomodulating effect on alopecia areata (AA) as it does in psoriasis. The aims of the present study were to investigate the effects of anthralin on hair growth in balding C3H/HeJ mice affected by an AA-like disease and to study the underlying m...
journal_title:Experimental dermatology
pub_type: 杂志文章
doi:10.1111/j.0906-6705.2004.00098.x
更新日期:2004-01-01 00:00:00
abstract::This study was stimulated by the clinical observation of a rapid response of a chilblain lupus patient to treatment with JAK1/2-kinase inhibitor ruxolitinib. We investigated the in vivo expression of phospho-JAK2 in CLE skin samples as well as the immunomodulatory in vitro effect of ruxolitinib in cultured immortalize...
journal_title:Experimental dermatology
pub_type: 信件
doi:10.1111/exd.13253
更新日期:2017-08-01 00:00:00
abstract::We have previously demonstrated that serum of patients with pemphigus vulgaris induces reduction of desmoglein 3 (Dsg3) half-life in keratinocytes (FEBS Lett 2006: 580: 3276). This phenomenon seems to occur as a consequence of the progressive depletion of Dsg3 from desmosomes. Here we reported that reduction of full-l...
journal_title:Experimental dermatology
pub_type: 杂志文章
doi:10.1111/j.1600-0625.2008.00719.x
更新日期:2008-10-01 00:00:00
abstract::In the last decades melanoma incidence has been increasing worldwide, while mortality remained on a high level. Until now, there is no suitable therapy for metastasized melanoma, which could lead to a significant increase in overall survival. Apoptosis deficiency is supposed to be a critical factor for therapy resista...
journal_title:Experimental dermatology
pub_type: 杂志文章,评审
doi:10.1111/j.1600-0625.2007.00655.x
更新日期:2008-01-01 00:00:00
abstract::We have characterized a stereospecific transport mechanism for L-dopa into human epidermal Langerhans cells (LCs). It is different from any other amino acid transport system. It is highly concentrative, largely pH-independent, and independent of exogenous Na+, glucose and oxygen, and fuelled by a renewable intracellul...
journal_title:Experimental dermatology
pub_type: 杂志文章
doi:10.1034/j.1600-0625.2003.00019.x
更新日期:2003-10-01 00:00:00
abstract::Inter-α-trypsin inhibitors are protease inhibitors that are thought to be important regulators in various acute-phase processes. They are composed of one light chain (bikunin) and different heavy chains (ITIHs). The only function known so far of ITIHs is the covalent linkage to hyaluronan (HA). As there is virtually n...
journal_title:Experimental dermatology
pub_type: 杂志文章
doi:10.1111/exd.12704
更新日期:2015-09-01 00:00:00
abstract::Reverse transcription polymerase chain reaction (qRT-PCR) has become a mainstay in many areas of skin research. To enable quantitative analysis, it is necessary to analyse expression of reference genes (RGs) for normalization of target gene expression. The selection of reliable RGs therefore has an important impact on...
journal_title:Experimental dermatology
pub_type: 杂志文章
doi:10.1111/exd.12759
更新日期:2015-10-01 00:00:00
abstract::A number of single gene mutations in laboratory mice produce hair follicle defects resulting in deformed hair shafts. The radiation-induced (SB/LeJ-Foxq1(sa)) satin mutant mice have a satin-like sheen to their hair and dilute colouration. This sheen is due to failure of the hair shafts to develop normal medullas, whil...
journal_title:Experimental dermatology
pub_type: 信件
doi:10.1111/exd.12106
更新日期:2013-03-01 00:00:00
abstract::Dermal papilla cells (DPC) control the growth character of the hair follicle through their elaboration of mitogenic factors and extracellular matrix components. Further, the dermal papilla is a primary site of androgen action in the hair follicle. Interleukin-1alpha (IL-1alpha) is prominent in skin wounding and inflam...
journal_title:Experimental dermatology
pub_type: 杂志文章
doi:10.1111/j.1600-0625.2006.00462.x
更新日期:2006-10-01 00:00:00
abstract::Pemphigus vulgaris (PV) is an autoimmune bullous disease caused by immunoglobulin G (IgG) autoantibodies against desmoglein 3 (Dsg3). We have generated an active disease mouse model for PV by adoptive transfer of Dsg3(-/-) lymphocytes. In this study, we investigated the benefits and limitations of this model as a tool...
journal_title:Experimental dermatology
pub_type: 杂志文章
doi:10.1111/j.1600-0625.2008.00776.x
更新日期:2009-03-01 00:00:00
abstract::4-(4-Hydroxyphenyl)-2-butanol (rhododendrol, RD), a skin-whitening agent, was reported to cause skin depigmentation in some users, which is attributed to its cytotoxicity to melanocyte. It was reported that cytotoxicity to melanocyte is possibly mediated by oxidative stress in a tyrosinase activity-dependent manner. W...
journal_title:Experimental dermatology
pub_type: 杂志文章
doi:10.1111/exd.13555
更新日期:2018-07-01 00:00:00
abstract::Nilotinib (AMN), a second-generation tyrosine kinase inhibitor, induces apoptosis in various cancer cells, and our recent study showed that AMN effectively reduced the viability of human ovarian cancer cells via mitochondrion-dependent apoptosis. The effect of AMN in the melanogenesis of melanoma cells is still unclea...
journal_title:Experimental dermatology
pub_type: 杂志文章
doi:10.1111/exd.13797
更新日期:2018-12-01 00:00:00
abstract::Irradiation with ultraviolet (UV) B light results in the formation of apoptotic keratinocytes called sunburn cells (SC). Although generation of SC appears to be one of the most characteristic features of UV-induced skin damage and has been a well-known phenomenon for a long time, the mechanisms involved are not quite ...
journal_title:Experimental dermatology
pub_type: 杂志文章
doi:10.1111/j.1600-0625.1997.tb00138.x
更新日期:1997-02-01 00:00:00
abstract::Pemphigus vulgaris (PV) is a severe autoimmune blistering disease of the skin and mucous membranes. As autoantibodies play an essential role in the disease pathogenesis, the serological detection of anti-desmoglein 3 IgG represents a central tool in the diagnosis of the disease. In this study, we show the validation o...
journal_title:Experimental dermatology
pub_type: 杂志文章
doi:10.1111/exd.13488
更新日期:2018-03-01 00:00:00
abstract::Antimicrobial peptides and proteins (AMP) are highly active molecules with a broad-spectrum of microbicidal activity. Human beta-defensins (hBD)-2 and hBD-3 were initially isolated from psoriatic-scale extracts, and other AMP have been identified in high concentrations in psoriatic skin explaining the uncommonness of ...
journal_title:Experimental dermatology
pub_type: 信件
doi:10.1111/exd.12538
更新日期:2014-11-01 00:00:00
abstract::Chemical haptens induce a variety of allergic immune reactions by induction of hapten-specific T cells. Contact sensitizers such as the hapten trinitrochlorobenzene (TNCB) elicit an allergic response, which is confined to the area of antigen exposure. Despite this localized allergic response, we show here that the tri...
journal_title:Experimental dermatology
pub_type: 杂志文章
doi:10.1034/j.1600-0625.2003.120110.x
更新日期:2003-02-01 00:00:00
abstract::The best characterized signalling pathway employed by transforming growth factor-beta (TGF-β) is the Smad pathway. We focused on Smad4, because it is essential for the activation of Smad-dependent target genes. We aimed to explore the possibility of inhibiting scar formation after wounding by blocking TGF-β signalling...
journal_title:Experimental dermatology
pub_type: 杂志文章
doi:10.1111/j.1600-0625.2010.01186.x
更新日期:2011-02-01 00:00:00
abstract::All species have evolved mechanisms of repair to restore tissue function following injury. Skin scarring is an inevitable and permanent endpoint for many postnatal organisms except for non-amniote vertebrates such as amphibians, which are capable of tissue regeneration. Furthermore, mammalian foetuses through mid-gest...
journal_title:Experimental dermatology
pub_type: 杂志文章,评审
doi:10.1111/exd.12457
更新日期:2014-09-01 00:00:00
abstract::Epidermal keratinocytes undergo a continuous process of terminal differentiation, which is accompanied by a dramatic change in the expression and composition of keratins. This complex and carefully orchestrated process is regulated by a large number of signal transduction events and transcriptional factors as well as ...
journal_title:Experimental dermatology
pub_type: 评论,杂志文章
doi:10.1111/exd.12434
更新日期:2014-09-01 00:00:00
abstract::In recent years, hyaluronan (HA) has become an increasingly attractive substance as a non-immunogenic filler and scaffolding material in cosmetic dermatology. Despite its wide use for skin augmentation and rejuvenation, relatively little is known about the molecular structures and interacting proteins of HA in normal ...
journal_title:Experimental dermatology
pub_type: 杂志文章,评审
doi:10.1111/exd.12370
更新日期:2014-05-01 00:00:00
abstract::Ultra-violet B (UVB)-induced oxidative stress crucially perturbs the epidermal homeostasis, and the skin is endowed with protective mechanisms to take action against such damage. Here, we show the possible involvement of t-SNARE protein syntaxin3, a membrane fusion mediator of cytoplasmic vesicles, and which is releas...
journal_title:Experimental dermatology
pub_type: 信件
doi:10.1111/exd.12278
更新日期:2013-12-01 00:00:00
abstract::Recent advances in the molecular biology of the dermo-epidermal basement membrane zone have contributed greatly to our understanding of the etiopathogenetic pathways underlying mechanobullous disorders. Genetic linkage was established between the keratin gene clusters and epidermolysis bullosa simplex, and keratin mut...
journal_title:Experimental dermatology
pub_type: 杂志文章,评审
doi:10.1111/j.1600-0625.1992.tb00001.x
更新日期:1992-10-01 00:00:00
abstract::The aim of the present study was to evaluate experimentally whether administration of recombinant (rh) vascular endothelial growth factor (VEGF) can protect skin flaps from necrosis and to study the optimum mode of rh-VEGF administration. We used rats to study the effects of local or systemic administration of rh-VEGF...
journal_title:Experimental dermatology
pub_type: 杂志文章
doi:10.1111/j.0906-6705.2004.00220.x
更新日期:2004-11-01 00:00:00