Abstract:
:Mucus plays a vital role in protecting the lungs from environmental factors, but conversely, in muco-obstructive airway disease, mucus becomes pathologic. In its protective role, mucus entraps microbes and particles removing them from the lungs via the co-ordinated beating of motile cilia. This mechanism of lung defence is reliant upon a flowing mucus gel, and the major macromolecular components that determine the rheological properties of mucus are the polymeric mucins, MUC5AC and MUC5B. These large O-linked glycoproteins have direct roles in maintaining lung homeostasis. MUC5B is essential for interaction with the ciliary clearance system and MUC5AC is up-regulated in response to allergic inflammatory challenge. Mucus with abnormal biophysical properties is a feature of muco-obstructive respiratory disease and can result from many different mechanisms including alterations in mucin polymer assembly, mucin concentration and the macromolecular form in mucus, as well as changes in airway surface hydration, pH and ion composition. The abnormal mucus results in defective lung protection via compromised ciliary clearance, leading to infection and inflammation.
journal_name
Biochem Soc Transjournal_title
Biochemical Society transactionsauthors
Ridley C,Thornton DJdoi
10.1042/BST20170402subject
Has Abstractpub_date
2018-10-19 00:00:00pages
1099-1106issue
5eissn
0300-5127issn
1470-8752pii
BST20170402journal_volume
46pub_type
杂志文章,评审abstract::The vessel wall is a dynamic tissue that undergoes positive remodelling in response to altered mechanical stress. A typical example is vein graft remodelling, because veins do not develop arteriosclerosis until a vein segment is grafted on to arteries. In this process, it was observed that vascular endothelial and smo...
journal_title:Biochemical Society transactions
pub_type: 杂志文章,评审
doi:10.1042/BST0350895
更新日期:2007-11-01 00:00:00
abstract::IAPP has been postulated to have a role as a modulating factor in glucose homoeostasis and to be involved in the pathophysiology of diabetes. However, the normal physiological functions of the peptide remain obscure: exogenous IAPP acts on many experimental systems to modulate nutrient supply and metabolism but there ...
journal_title:Biochemical Society transactions
pub_type: 杂志文章,评审
doi:10.1042/bst0240594
更新日期:1996-05-01 00:00:00
abstract::BK (large conductance calcium- and voltage-activated potassium) channels are important determinants of physiological control in the nervous, endocrine and vascular systems with channel dysfunction associated with major disorders ranging from epilepsy to hypertension and obesity. Thus the mechanisms that control channe...
journal_title:Biochemical Society transactions
pub_type: 杂志文章
doi:10.1042/BST20120226
更新日期:2013-02-01 00:00:00
abstract::Rho-family GTPases regulate various aspects of cell function by controlling cytoskeletal changes; however, their spatial regulation within the cells remains largely unknown. To understand this regulation, we have studied the spatiotemporal activity of Rho-family GTPases in migrating cells and growth factor-stimulated ...
journal_title:Biochemical Society transactions
pub_type: 杂志文章,评审
doi:10.1042/BST0330631
更新日期:2005-08-01 00:00:00
abstract::In plant and metazoan, Polycomb Group (PcG) proteins play key roles in regulating developmental processes by repression of gene expression. PcG proteins function as multi-protein complexes; among them the best characterized ones are Polycomb Repressive Complex 1 (PRC1) and PRC2. PRC2 catalyzes histone H3 lysine 27 tri...
journal_title:Biochemical Society transactions
pub_type: 杂志文章,评审
doi:10.1042/BST20170576
更新日期:2018-08-20 00:00:00
abstract::There is strong evidence for an important role for increased COX (cyclo-oxygenase)-2 expression and PG (prostaglandin) E2 production in colorectal tumorigenesis. PGE(2) acts through four E-prostanoid receptors (EP1-4). COX-2 has therefore become a target for the potential chemoprevention and therapy of colorectal canc...
journal_title:Biochemical Society transactions
pub_type: 杂志文章,评审
doi:10.1042/BST0330667
更新日期:2005-08-01 00:00:00
abstract::cAMP is an essential signalling molecule whose concentration in cells is regulated by a wide range of hormones. A large number of diseases, including cancer and asthma, are linked to improper regulation of the cAMP signalling system, and manipulation of cAMP levels by pharmaceutical agents has proven therapeutic benef...
journal_title:Biochemical Society transactions
pub_type: 杂志文章,评审
doi:10.1042/BST20051327
更新日期:2005-12-01 00:00:00
abstract::PD (Parkinson's disease) is an aetiologically heterogeneous disorder characterized by a clinical phenotype consisting of resting tremor, rigidity and bradykinesia. Motor symptoms are associated with a progressive loss of dopaminergic neurons, with Lewy body inclusions within surviving neurons. Although heritability st...
journal_title:Biochemical Society transactions
pub_type: 杂志文章,评审
doi:10.1042/BST0330586
更新日期:2005-08-01 00:00:00
abstract::Cystic fibrosis, one of the major human inherited diseases, is caused by defects in the CFTR (cystic fibrosis transmembrane conductance regulator), a cell-membrane protein. CFTR acts as a chloride channel which can be opened by ATP. Low-resolution structural studies of purified recombinant human CFTR are described in ...
journal_title:Biochemical Society transactions
pub_type: 杂志文章
doi:10.1042/BST20050996
更新日期:2005-11-01 00:00:00
abstract::The phototrophic bacterium Rhodobacter capsulatus E1F1 assimilates nitrate under anaerobic phototrophic growth conditions. A 17 kb DNA region encoding the nitrate assimilation (nas) system of this bacterium has been cloned and sequenced. This region includes the genes coding for a putative ABC (ATP-binding cassette)-t...
journal_title:Biochemical Society transactions
pub_type: 杂志文章,评审
doi:10.1042/BST0340127
更新日期:2006-02-01 00:00:00
abstract::High glucose inhibits mitochondrial respiration, known as the 'Crabtree effect', in cancer cells and possibly other cell types. The upstream pathways regulating this phenomenon are poorly understood. In diabetes, where glucose levels are elevated, the p90(RSK) (p90 ribosomal S6 kinase) has received much attention as a...
journal_title:Biochemical Society transactions
pub_type: 杂志文章
doi:10.1042/BST20120277
更新日期:2013-02-01 00:00:00
abstract::Human heparan sulphate N-deacetylase/N-sulphotransferase 1 sulphates the NH(3) (+) group of the glucosamine moiety of the heparan chain in heparan sulphate/heparin biosynthesis. An open cleft that runs perpendicular to the sulphate donor 3'-phosphoadenosine 5'-phosphosulphate may constitute the acceptor substrate-bind...
journal_title:Biochemical Society transactions
pub_type: 杂志文章,评审
doi:10.1042/bst0310331
更新日期:2003-04-01 00:00:00
abstract::The study of regulated exocytosis uniquely allows the direct measurement of intracellular membrane fusion events in real time. We have exploited this to examine factors that regulate not only the extent but also the dynamics of single fusion/release events. The general strategy used has been to assess exocytosis in tr...
journal_title:Biochemical Society transactions
pub_type: 杂志文章,评审
doi:10.1042/bst0290467
更新日期:2001-08-01 00:00:00
abstract::Animal venoms are recognised as unique biological systems in which to study molecular evolution. Venom use has evolved numerous times among the insects, and insects today use venom to capture prey, defend themselves from predators, or to subdue and modulate host responses during parasitism. However, little is known ab...
journal_title:Biochemical Society transactions
pub_type: 杂志文章
doi:10.1042/BST20190820
更新日期:2020-08-28 00:00:00
abstract::Horses and other equids are unusual in producing protein-rich sweat for thermoregulation, a major component of which is latherin, a highly surface-active, non-glycosylated protein that is a member of the PLUNC (palate, lung and nasal epithelium clone) family. Latherin produces a significant reduction in water surface ...
journal_title:Biochemical Society transactions
pub_type: 杂志文章
doi:10.1042/BST0391017
更新日期:2011-08-01 00:00:00
abstract::Most of the effects of the signalling molecule nitric oxide (NO) are mediated by the stimulation of the NO-sensitive GC (guanylate cyclase) and the subsequent increase in cGMP formation. The enzyme contains a prosthetic haem group, which mediates NO stimulation. In addition to the physiological activator NO, NO-sensit...
journal_title:Biochemical Society transactions
pub_type: 杂志文章
doi:10.1042/BST20051119
更新日期:2005-11-01 00:00:00
abstract::ESR1 is frequently silenced by CGI (CpG island) methylation, both in human colorectal tumours and, in an age-dependent manner, in healthy mucosa. It is not clear, however, whether methylation of individual cytosines occurs randomly within the epithelial genome, or preferentially within individual cells as an 'all-or-n...
journal_title:Biochemical Society transactions
pub_type: 杂志文章
doi:10.1042/BST0330709
更新日期:2005-08-01 00:00:00
abstract::Triple-negative breast cancer (TNBC) is a heterogeneous breast cancer subtype that lacks targeted therapy due to the absence of estrogen, progesterone, and HER2 receptors. Moreover, TNBC was shown to have a poor prognosis, since it involves aggressive phenotypes that confer significant hindrance to therapeutic treatme...
journal_title:Biochemical Society transactions
pub_type: 杂志文章
doi:10.1042/BST20200666
更新日期:2020-12-01 00:00:00
abstract::The biosynthetic intermediate PRPP (phosphoribosylpyrophosphate) has a central role in cellular biochemistry since it links carbon and nitrogen metabolism. Its importance may be reflected in the fact that, in the Saccharomyces cerevisiae (yeast) genome, there are five unlinked genes, PRS1-PRS5, each of which is theore...
journal_title:Biochemical Society transactions
pub_type: 杂志文章
doi:10.1042/BST20051154
更新日期:2005-11-01 00:00:00
abstract::It has been clear for some time now that mucin glycoproteins have extensive, highly glycosylated tandem repeat domains. What is becoming increasingly apparent, however, is the diversity of unique sequences present on different mucins. Variations in mucin-unique sequences clearly result in major differences in physical...
journal_title:Biochemical Society transactions
pub_type: 杂志文章,评审
doi:10.1042/bst0230795
更新日期:1995-11-01 00:00:00
abstract::AMP-activated protein kinase (AMPK) is a regulator of cellular metabolism in response to changes in the energy status of the cells. AMPK was known to shut down energy-consuming pathways in response to a fall in the ATP/AMP ratio by phosphorylating key enzymes of intermediate metabolism. Here we will discuss the recent...
journal_title:Biochemical Society transactions
pub_type: 杂志文章,评审
doi:10.1042/
更新日期:2002-04-01 00:00:00
abstract::AMPA (alpha-amino-3-hydroxy-5-methylisoxazole-4-propionic acid) receptor trafficking is a fundamental mechanism for regulating synaptic strength, and hence may underlie cellular processes involved in learning and memory. PICK1 (protein that interacts with protein C-kinase) has recently emerged as a key regulator of AM...
journal_title:Biochemical Society transactions
pub_type: 杂志文章
doi:10.1042/BST0340931
更新日期:2006-11-01 00:00:00
abstract::Glyoxalase I is part of the glyoxalase system present in the cytosol of cells. The glyoxalase system catalyses the conversion of reactive, acyclic alpha-oxoaldehydes into the corresponding alpha-hydroxyacids. Glyoxalase I catalyses the isomerization of the hemithioacetal, formed spontaneously from alpha-oxoaldehyde an...
journal_title:Biochemical Society transactions
pub_type: 杂志文章,评审
doi:10.1042/bst0311343
更新日期:2003-12-01 00:00:00
abstract::Muscles are responsible for generating the forces required for the movement of multicellular organisms. Microscopically, these forces arise as a consequence of motor proteins (myosin) pulling and sliding along actin filaments. Current knowledge states that the molecular forces between actin and myosin are linear in na...
journal_title:Biochemical Society transactions
pub_type: 杂志文章,评审
doi:10.1042/BST0320694
更新日期:2004-11-01 00:00:00
abstract::A flavorubredoxin and its associated oxidoreductase (encoded by norV and norW respectively) detoxify NO (nitric oxide) to form N2O (nitrous oxide) under anaerobic conditions in Escherichia coli. Transcription of the norVW genes is activated in response to NO by the σ54-dependent regulator and dedicated NO sensor, NorR...
journal_title:Biochemical Society transactions
pub_type: 杂志文章,评审
doi:10.1042/BST0390289
更新日期:2011-01-01 00:00:00
abstract::The mechanical function and the collagen phenotype of the disc are complex, each a hybrid of elements of ligament and cartilage. In detail, the collagen properties are unique. Collagens I and II provide the bulk of the tissue fabric interwoven in opposing radial concentration gradients. From analysis of isolated cross...
journal_title:Biochemical Society transactions
pub_type: 杂志文章,评审
doi:10.1042/bst0300844
更新日期:2002-11-01 00:00:00
abstract::Large single crystals (up to 1 mm in each dimension) of the B800-850 antenna complex from Rhodopseudomonas acidophila strain 10050 have been grown in the presence of beta-octyl-glucoside. These crystals have the space group R32 and unit cell dimensions of a = b = 119.9 A and c = 297.0 A. Recently we have improved our ...
journal_title:Biochemical Society transactions
pub_type: 杂志文章
doi:10.1042/bst0210039
更新日期:1993-02-01 00:00:00
abstract::RNA degradation is a vital post-transcriptional process which ensures that transcripts are maintained at the correct level within the cell. DIS3L2 and XRN1 are conserved exoribonucleases that are critical for the degradation of cytoplasmic RNAs. Although the molecular mechanisms of RNA degradation by DIS3L2 and XRN1 h...
journal_title:Biochemical Society transactions
pub_type: 杂志文章,评审
doi:10.1042/BST20160107
更新日期:2016-10-15 00:00:00
abstract::Frequent subversion of the PI3K (phosphoinositide 3-kinase) pathway during neoplastic transformation contributes to several hallmarks of cancer that result in a competitive advantage for cancer cells. Deregulation of this pathway can be the result of genomic alterations such as PIK3CA mutation, PTEN (phosphatase and t...
journal_title:Biochemical Society transactions
pub_type: 杂志文章,评审
doi:10.1042/BST20140034
更新日期:2014-08-01 00:00:00
abstract::Mouse ES (embryonic stem) cells maintain pluripotency with robust proliferation in vitro. ES cells share some similarities with cancer cells, such as anchorage-independent growth, loss of contact inhibition and tumour formation. After differentiation, ES cells lose pluripotency and tumorigenicity. Recent studies showe...
journal_title:Biochemical Society transactions
pub_type: 杂志文章,评审
doi:10.1042/BST20051522
更新日期:2005-12-01 00:00:00