Abstract:
:Since life in a terrestrial environment threatens mammals continuously with desiccation, the structural, cellular, biochemical, and regulatory mechanisms that sustain permeability barrier homeostasis have justifiably comprised a major thrust of prior and recent research on epidermal barrier function. Yet, the epidermis mediates a broad set of protective 'barrier' functions that includes defense against pathogen challenges. Permeability and antimicrobial function are both co-regulated and interdependent, overlapping through the dual activities of their lipid/protein constituents. Most of the defensive (barrier) functions of the epidermis localize to the stratum corneum (SC), which limits pathogen colonization through its low water content, acidic pH, resident (normal) microflora, and surface-deposited antimicrobial lipids (1 degree free fatty acid). These various barrier functions are largely mediated by either the corneocyte or the extracellular matrix, and it is both the localization and the organization of secreted hydrophobic lipids into characteristic lamellar bilayers that is critical not only for permeability barrier function, but also for antimicrobial function through its contribution to the maintenance of SC integrity. Low constitutive levels of antimicrobial peptides under basal conditions emphasize the key role of epithelial structure in antimicrobial defense. But antimicrobial peptide synthesis and delivery to the SC interstices accelerates after external insults to the barrier.
journal_name
Semin Immunopatholjournal_title
Seminars in immunopathologyauthors
Elias PMdoi
10.1007/s00281-007-0060-9subject
Has Abstractpub_date
2007-04-01 00:00:00pages
3-14issue
1eissn
1863-2297issn
1863-2300journal_volume
29pub_type
杂志文章,评审abstract::Originally identified as a response to starvation in yeast, autophagy is now understood to fulfill a variety of roles in higher eukaryotes, from the maintenance of cellular homeostasis to the cellular response to stress, starvation, and infection. Although genetics and biochemical studies in yeast have identified many...
journal_title:Seminars in immunopathology
pub_type: 杂志文章,评审
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abstract::Crohn's disease (CD) is characterized by chronic inflammation of the gastrointestinal tract and represents one of the main inflammatory bowel disease (IBD) forms. The infiltration of immune cells into the mucosa and uncontrolled production of pro-inflammatory cytokines and other mediators trigger the chronic inflammat...
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journal_title:Seminars in immunopathology
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journal_title:Seminars in immunopathology
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journal_title:Seminars in immunopathology
pub_type: 杂志文章,评审
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journal_title:Seminars in immunopathology
pub_type: 杂志文章,评审
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journal_title:Seminars in immunopathology
pub_type: 杂志文章,评审
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更新日期:2014-01-01 00:00:00
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journal_title:Seminars in immunopathology
pub_type: 杂志文章,评审
doi:10.1007/s00281-020-00831-y
更新日期:2021-01-07 00:00:00
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journal_title:Seminars in immunopathology
pub_type: 杂志文章,评审
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更新日期:2012-05-01 00:00:00
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journal_title:Seminars in immunopathology
pub_type: 杂志文章,评审
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更新日期:2016-05-01 00:00:00
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pub_type: 杂志文章,评审
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journal_title:Seminars in immunopathology
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journal_title:Seminars in immunopathology
pub_type: 杂志文章,评审
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更新日期:2016-01-01 00:00:00
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journal_title:Seminars in immunopathology
pub_type: 杂志文章,评审
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更新日期:2011-03-01 00:00:00
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journal_title:Seminars in immunopathology
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更新日期:2019-03-01 00:00:00
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journal_title:Seminars in immunopathology
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更新日期:2016-03-01 00:00:00
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journal_title:Seminars in immunopathology
pub_type: 杂志文章,评审
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journal_title:Seminars in immunopathology
pub_type: 杂志文章,评审
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更新日期:2013-11-01 00:00:00
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journal_title:Seminars in immunopathology
pub_type: 杂志文章,评审
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更新日期:2015-01-01 00:00:00
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journal_title:Seminars in immunopathology
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doi:10.1007/s00281-015-0511-7
更新日期:2015-09-01 00:00:00
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journal_title:Seminars in immunopathology
pub_type: 杂志文章,评审
doi:10.1007/s00281-011-0297-1
更新日期:2012-03-01 00:00:00
abstract::The intestine is normally colonized by a large and diverse commensal microbiota and is occasionally exposed to a variety of potential pathogens. In recent years, there has been substantial progress made in identifying molecular mechanisms that normally serve to protect the intestine from such enteric bacteria and whic...
journal_title:Seminars in immunopathology
pub_type: 杂志文章,评审
doi:10.1007/s00281-007-0100-5
更新日期:2008-02-01 00:00:00
abstract::Food allergy is a harmful immune reaction driven by uncontrolled type 2 immune responses. Considerable evidence demonstrates the key roles of mast cells, IgE, and TH2 cytokines in mediating food allergy. However, this evidence provides limited insight into why only some, rather than all, food allergic individuals are ...
journal_title:Seminars in immunopathology
pub_type: 杂志文章,评审
doi:10.1007/s00281-016-0605-x
更新日期:2017-01-01 00:00:00
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journal_title:Seminars in immunopathology
pub_type: 杂志文章,评审
doi:10.1007/s00281-010-0201-4
更新日期:2010-06-01 00:00:00
abstract::The cryopyrin-associated periodic syndrome (CAPS) is a severity spectrum of rare diseases. CAPS comprises the three conditions previously described as familial cold autoinflammatory syndrome (FCAS), Muckle-Wells syndrome (MWS), and neonatal-onset multisystem inflammatory disorder (NOMID), also known as chronic infanti...
journal_title:Seminars in immunopathology
pub_type: 杂志文章,评审
doi:10.1007/s00281-015-0491-7
更新日期:2015-07-01 00:00:00
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journal_title:Seminars in immunopathology
pub_type: 杂志文章,评审
doi:10.1007/s00281-014-0463-3
更新日期:2015-03-01 00:00:00