Abstract:
:Several lines of defense maintain the surface integrity of the delicate airway epithelium which is regularly subjected to severe trauma. These defense mechanisms include protection by the mucus layer, rapid repair by restitution (cell migration) and regeneration via proliferation and differentiation. Luminal surveillance peptides such as epidermal growth factor (EGF) and trefoil factor family (TFF) peptides support synergistically these processes. TFFs are well known particularly for their key role in mucosal restitution and there is an increasing body of evidence that TFFs also support mucosal differentiation processes. Mucus overproduction during inflammatory and obstructive airway diseases is a partial consequence of an increase in the number of goblet cells due to cell division (goblet cell hyperplasia) or differentiation (goblet cell metaplasia). Particularly the latter process reflects the plasticity of the airway epithelium and causes intense airway remodeling. Goblet cells are derived, at least in part, from Clara cells, which trans-differentiate from a serous into a mucous phenotype. This process is critically dependent upon IL-13. In a recent report (Kouznetsova et al. AJRCMB 36:286-297, 2007) using a murine asthma model it was shown that trans-differentiating Clara cells specifically express Tff1 which is stored in a specific subset of secretory granules. This points to a role for Tff1 as an autocrine factor for the trans-differentiation of Clara cells toward goblet cells. Such a role of TFFs for differentiation processes of the airways is supported by another recent study (LeSimple et al. AJRCMB 36:296-303, 2007) where induction of TFF3 synthesis was shown with differentiation in in vivo humanized tracheal xenograft and in vitro air-liquid interface culture models. Furthermore, exogenous TFF3 promoted differentiation of ciliated cells in an EGF receptor-dependent manner. Taken together, both studies imply that TFFs may play key roles for various differentiation processes of the airways and they could be promising novel targets in order to treat severe chronic and acute airway diseases.
journal_name
Curr Med Chemjournal_title
Current medicinal chemistryauthors
Hoffmann Wdoi
10.2174/092986707782023226subject
Has Abstractpub_date
2007-01-01 00:00:00pages
2716-9issue
25eissn
0929-8673issn
1875-533Xjournal_volume
14pub_type
杂志文章,评审abstract:BACKGROUND:Nonalcoholic fatty liver disease (NAFLD), the most common chronic liver disease, is the leading cause of cryptogenic cirrhosis and has consistently been implicated in related metabolic disorders, such as dyslipidemia and type 2 diabetes (T2D). However, the pathogenesis of NAFLD remains to be elucidated, and ...
journal_title:Current medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/0929867324666170404142450
更新日期:2018-01-01 00:00:00
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journal_title:Current medicinal chemistry
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更新日期:2010-01-01 00:00:00
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更新日期:2014-01-01 00:00:00
abstract::High-resolution nuclear magnetic resonance (NMR) spectroscopy is a universal analytical tool. It can provide detailed information on chemical shifts, J coupling constants, multiplet patterns, and relative peak areas. It plays an important role in the fields of chemistry, biology, medicine, and pharmacy. A highly homog...
journal_title:Current medicinal chemistry
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更新日期:2019-01-01 00:00:00
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更新日期:2008-01-01 00:00:00
abstract::Correct QSAR analysis requires reliable measured or calculated logP values, being logP the most frequently utilized and most important physico-chemical parameter in such studies. Since the publication of theoretical fundamentals of logP prediction, many commercial software solutions are available. These programs are a...
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更新日期:2002-10-01 00:00:00
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abstract::Fourier-transform infrared (FT-IR) based mapping and imaging is a fast emerging technology which is being increasingly applied to investigate tissues in the high-throughput mode. The high resolution close to the cellular level, the possibility to determine the bio-distribution of molecules of interest (proteins, pepti...
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abstract::Currently, the long-term usage of non-nucleoside reverse transcriptase inhibitors (NNRTIs) in HIVAIDS patients eventually leads to the development of drug resistance and severe side effect. Therefore, it is imperative to look for the novel NNRTIs with potent and broad spectrum anti-mutant activity that are also safe a...
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abstract:BACKGROUND:Histone deacetylases (HDAC) are an important class of enzymes that play a pivotal role in epigenetic regulation of gene expression that modifies the terminal of core histones leading to remodelling of chromatin topology and thereby controlling gene expression. HDAC inhibitors (HDACi) counter this action and ...
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更新日期:2004-05-01 00:00:00
abstract::The resin of Pistacia lentiscus (L.) var. chia (Duham), an evergreen shrub belonging to the family Anacardiaceae and uniquely cultivated in southern Chios, is known as mastic. It has been used for more than 2500 years in traditional Greek medicine for treating several diseases such as gastralgia and peptic ulcers, whi...
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更新日期:2012-01-01 00:00:00
abstract::Apoptotic cell death has been reported in human oocytes and preimplantation embryos under in vivo and in vitro conditions. BCL-2 family proteins comprise both anti- and pro-apoptotic members, which are likely to play a key role in controlling oocyte and early embryo survival. However, very limited data are available o...
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abstract::With the increasing production of engineered nanomaterials (ENMs) exploited in many consumer products, a wider number of people is expected to be exposed to such materials in the near future, both in occupational and environmental settings. This has raised concerns about the possible implications on public health. In ...
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更新日期:2012-01-01 00:00:00
abstract::The alphavbeta3 receptor, which are members of the group of the cellular adhesion molecules (CAM), are heterodimeric transmembrane glycoprotein receptors involved in processes such as cell-cell and cell-matrix adhesion, cell migration and signaling. Integrin alphavbeta3 receptor is expressed on almost all cells origin...
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更新日期:2005-01-01 00:00:00
abstract::Microcin J25 (MccJ25) is a plasmid-encoded peptide of 21 L-amino acids (G1-G-A-G-H5-V-P-E-Y-F10-V-G-I-G-T15-P-I-S-F-Y20-G), excreted to the medium by an Escherichia coli strain. MccJ25 is active on Gram-negative bacteria related to the producer strain, including some pathogenic strains. The four-plasmid genes mcjABCD,...
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abstract::Osteoporosis is a pathological loss of bone mass due to an imbalance in bone remodeling where osteoclast-mediated bone resorption exceeds osteoblast-mediated bone formation resulting in skeletal fragility and fractures. Anti-resorptive agents such as bisphosphonates and SERMs, and anabolic drugs that stimulate bone fo...
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更新日期:2020-03-30 00:00:00
abstract::Advances in combinatorial chemistry, high-throughput screening, and molecular modeling have revolutionized the process of drug discovery in the pharmaceutical industry. Drug discovery efforts for the primary protozoal parasitic diseases of the developing world, malaria, leishmaniasis, and trypanosomiasis, have also be...
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更新日期:2000-08-01 00:00:00