Abstract:
:There is likely general consensus within the skin research community that cell cycle control is critical to epidermal homeostasis and disease. The current predominant model proposes that keratinocytes switch off DNA replication and undergo cell cycle and cell growth arrest as they initiate terminal differentiation. However, this model cannot explain key physiological features of the skin, mainly why squamous differentiation prevails over proliferation in benign hyperproliferative disorders. In recent years, we have proposed an alternative model that involves mitotic slippage and endoreplication. This new model is controversial and has encountered resistance within the field. However, looking back at history, the epidermal cell cycle has been a matter of controversy and debate for around 100 years now. The accumulated data are confusing and contradictory. Our present model can explain and reconcile both old and new paradoxical observations. Here, we explain and discuss the endoreplicative cell cycle, the evidence for and against its existence in human epidermis and the important implications for skin homeostasis and disease. We show that regardless of the strengths or weaknesses of the Endoreplication Model, the existing evidence in support of the Cell Cycle Arrest Model is very weak.
journal_name
Exp Dermatoljournal_title
Experimental dermatologyauthors
Gandarillas A,Freije Adoi
10.1111/exd.12287subject
Has Abstractpub_date
2014-02-01 00:00:00pages
87-91issue
2eissn
0906-6705issn
1600-0625journal_volume
23pub_type
杂志文章,评审abstract::CD44 is a family of cell-surface receptors on human lymphocytes that act as co-stimulatory molecules leading to the induction of effector functions in T cells. We have analyzed primary cutaneous malignant melanomas with clinical and histologic signs of tumor regression using immunohistochemistry and observed the predo...
journal_title:Experimental dermatology
pub_type: 杂志文章
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abstract::Mast cells, eosinophils and basophils are central effector immune cells in allergic skin inflammation including atopic dermatitis (AD). Recent studies revealed that the bidirectional interaction between these three immune cell types (mast cells, eosinophils and basophils) and the nervous system is involved in the path...
journal_title:Experimental dermatology
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journal_title:Experimental dermatology
pub_type: 杂志文章
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journal_title:Experimental dermatology
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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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更新日期:1993-02-01 00:00:00
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journal_title:Experimental dermatology
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journal_title:Experimental dermatology
pub_type: 杂志文章
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journal_title:Experimental dermatology
pub_type: 信件
doi:10.1111/j.1600-0625.2012.01560.x
更新日期:2012-10-01 00:00:00
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journal_title:Experimental dermatology
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journal_title:Experimental dermatology
pub_type: 杂志文章
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更新日期:2015-06-01 00:00:00
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journal_title:Experimental dermatology
pub_type: 杂志文章
doi:10.1111/j.1600-0625.2008.00827.x
更新日期:2009-06-01 00:00:00
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journal_title:Experimental dermatology
pub_type: 杂志文章
doi:10.1111/exd.13903
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journal_title:Experimental dermatology
pub_type: 杂志文章
doi:10.1111/j.1600-0625.2007.00623.x
更新日期:2007-12-01 00:00:00
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journal_title:Experimental dermatology
pub_type: 杂志文章
doi:10.1111/j.1600-0625.2009.00965.x
更新日期:2010-01-01 00:00:00
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pub_type: 杂志文章
doi:10.1111/exd.12086
更新日期:2013-02-01 00:00:00
abstract::Interleukin (IL)-24 is the protein product of melanoma differentiation-associated gene 7 (MDA-7). Originally identified as a tumor suppressor molecule, MDA-7 was renamed IL-24 and classified as a cytokine because of its chromosomal location in the IL-10 locus, its mRNA expression in leukocytes, and its secretory seque...
journal_title:Experimental dermatology
pub_type: 杂志文章
doi:10.1111/j.1600-0625.2010.01077.x
更新日期:2010-08-01 00:00:00
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journal_title:Experimental dermatology
pub_type: 信件
doi:10.1111/j.1600-0625.2011.01378.x
更新日期:2011-12-01 00:00:00
abstract::It is not clear whether TNF-α antagonists used in the treatment of psoriasis need to act systemically, or whether local inhibition of skin-produced TNF-α would be sufficient to silence skin inflammation. To answer this question, we conducted two multicentre, double-blinded, randomized, placebo-controlled clinical tria...
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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journal_title:Experimental dermatology
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journal_title:Experimental dermatology
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journal_title:Experimental dermatology
pub_type: 杂志文章
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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
doi:10.1034/j.1600-0625.2000.009001016.x
更新日期:2000-02-01 00:00:00
abstract::Pro- and anti-apoptotic members of the Bcl-2 family are fundamental in the control of apoptosis. Among them, Bax plays a key role in apoptosis induction by mediating the release of apoptogenic factors from mitochondria to the cytosol. In this report, we investigated, by immunohistofluorescence, the in vivo distributio...
journal_title:Experimental dermatology
pub_type: 杂志文章
doi:10.1111/j.1600-0625.2007.00660.x
更新日期:2008-02-01 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:2013-10-01 00:00:00
abstract::Chronic pruritus of any origin is a frequent discomfort in daily medical practice, and its therapy is challenging. Frequently, the underlying origin may not be identified and symptomatic therapy is necessary. Conventional treatment modalities such as antihistamines often lack efficacy, and hence new therapeutic strate...
journal_title:Experimental dermatology
pub_type: 杂志文章,评审
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更新日期:2008-03-01 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:2013-01-01 00:00:00
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journal_title:Experimental dermatology
pub_type: 临床试验,杂志文章
doi:10.1111/exd.13560
更新日期:2019-08-01 00:00:00
abstract::In the area of dermatological research, the knowledge of rate and extent of substance penetration into the human skin is essential not only for evaluation of therapeutics, but also for risk assessment of chemicals and cosmetic ingredients. Recently, confocal Raman microscopy emerged as a novel analytical technique for...
journal_title:Experimental dermatology
pub_type: 信件
doi:10.1111/exd.12542
更新日期:2014-12-01 00:00:00