Abstract：
:In this review we discuss mucus, the viscoelastic secretion from goblet or mucous producing cells that lines the epithelial surfaces of all organs exposed to the external world. Mucus is a complex aqueous fluid that owes its viscoelastic, lubricating and hydration properties to the glycoprotein mucin combined with electrolytes, lipids and other smaller proteins. Electron microscopy of mucosal surfaces reveals a highly convoluted surface with a network of fibers and pores of varying sizes. The major structural and functional component, mucin is a complex glycoprotein coded by about 20 mucin genes which produce a protein backbone having multiple tandem repeats of Serine, Threonine (ST repeats) where oligosaccharides are covalently O-linked. The N- and C-terminals of this apoprotein contain other domains with little or no glycosylation but rich in cysteines leading to dimerization and further multimerization via SS bonds. The synthesis of this complex protein starts in the endoplasmic reticulum with the formation of the apoprotein and is further modified via glycosylation in the cis and medial Golgi and packaged into mucin granules via Ca2+ bridging of the negative charges on the oligosaccharide brush in the trans Golgi. The mucin granules fuse with the plasma membrane of the secretory cells and following activation by signaling molecules release Ca2+ and undergo a dramatic change in volume due to hydration of the highly negatively charged polymer brush leading to exocytosis from the cells and forming the mucus layer. The rheological properties of mucus and its active component mucin and its mucoadhesivity are briefly discussed in light of their importance to mucosal drug delivery.
journal_name
Adv Drug Deliv Revjournal_title
Advanced drug delivery reviewsauthors
Bansil R,Turner BSdoi
10.1016/j.addr.2017.09.023subject
Has Abstractpub_date
2018-01-15 00:00:00pages
3-15eissn
0169-409Xissn
1872-8294pii
S0169-409X(17)30204-1journal_volume
124pub_type
杂志文章,评审abstract：:Nanomaterials composed of plant viral components are finding their way into medical technology and health care, as they offer singular properties. Precisely shaped, tailored virus nanoparticles (VNPs) with multivalent protein surfaces are efficiently loaded with functional compounds such as contrast agents and drugs, ...
journal_title：Advanced drug delivery reviews
pub_type： 杂志文章,评审
doi：10.1016/j.addr.2018.08.011
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journal_title：Advanced drug delivery reviews
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journal_title：Advanced drug delivery reviews
pub_type： 杂志文章,评审
doi：10.1016/j.addr.2010.09.010
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journal_title：Advanced drug delivery reviews
pub_type： 杂志文章,评审
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journal_title：Advanced drug delivery reviews
pub_type： 杂志文章,评审
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journal_title：Advanced drug delivery reviews
pub_type： 杂志文章,评审
doi：10.1016/j.addr.2014.11.022
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journal_title：Advanced drug delivery reviews
pub_type： 杂志文章,评审
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journal_title：Advanced drug delivery reviews
pub_type： 杂志文章,评审
doi：10.1016/j.addr.2014.10.029
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journal_title：Advanced drug delivery reviews
pub_type： 杂志文章,评审
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journal_title：Advanced drug delivery reviews
pub_type： 杂志文章,评审
doi：10.1016/j.addr.2018.06.008
更新日期：2019-02-01 00:00:00
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journal_title：Advanced drug delivery reviews
pub_type： 杂志文章,评审
doi：10.1016/j.addr.2018.06.001
更新日期：2019-02-01 00:00:00
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journal_title：Advanced drug delivery reviews
pub_type： 杂志文章,评审
doi：10.1016/j.addr.2013.10.002
更新日期：2013-12-01 00:00:00
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journal_title：Advanced drug delivery reviews
pub_type： 杂志文章,评审
doi：10.1016/j.addr.2012.05.015
更新日期：2013-04-01 00:00:00
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journal_title：Advanced drug delivery reviews
pub_type： 杂志文章,评审
doi：10.1016/j.addr.2007.03.004
更新日期：2007-03-30 00:00:00
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journal_title：Advanced drug delivery reviews
pub_type： 杂志文章,评审
doi：10.1016/j.addr.2014.10.014
更新日期：2014-12-15 00:00:00
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journal_title：Advanced drug delivery reviews
pub_type： 杂志文章
doi：10.1016/s0169-409x(98)00064-7
更新日期：1999-01-04 00:00:00
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journal_title：Advanced drug delivery reviews
pub_type： 杂志文章,评审
doi：10.1016/j.addr.2018.10.008
更新日期：2018-09-01 00:00:00
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journal_title：Advanced drug delivery reviews
pub_type： 杂志文章,评审
doi：10.1016/j.addr.2017.07.016
更新日期：2017-10-01 00:00:00
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journal_title：Advanced drug delivery reviews
pub_type： 杂志文章,评审
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journal_title：Advanced drug delivery reviews
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journal_title：Advanced drug delivery reviews
pub_type： 杂志文章,评审
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journal_title：Advanced drug delivery reviews
pub_type： 杂志文章,评审
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journal_title：Advanced drug delivery reviews
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journal_title：Advanced drug delivery reviews
pub_type： 杂志文章,评审
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更新日期：2016-12-15 00:00:00
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journal_title：Advanced drug delivery reviews
pub_type： 杂志文章,评审
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更新日期：2015-04-01 00:00:00
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journal_title：Advanced drug delivery reviews
pub_type： 杂志文章
doi：10.1016/s0169-409x(98)00056-8
更新日期：1999-03-01 00:00:00
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journal_title：Advanced drug delivery reviews
pub_type： 杂志文章,评审
doi：10.1016/j.addr.2006.08.002
更新日期：2006-11-30 00:00:00
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journal_title：Advanced drug delivery reviews
pub_type： 杂志文章,评审
doi：10.1016/s0169-409x(03)00099-1
更新日期：2003-08-28 00:00:00
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journal_title：Advanced drug delivery reviews
pub_type： 杂志文章,评审
doi：10.1016/j.addr.2017.07.012
更新日期：2017-10-01 00:00:00
abstract：:Modern pharmaceutical delivery systems are intended to produce plasma drug concentration versus time profiles that result in optimum therapeutic efficacy and a minimum of drug concentration-dependent adverse effects. To accomplish this requires that the drug delivery rate and temporal profile be based on the pharmacok...
journal_title：Advanced drug delivery reviews
pub_type： 杂志文章
doi：10.1016/s0169-409x(98)00028-3
更新日期：1998-09-07 00:00:00
