Abstract：
:Matrix metalloproteinases (MMPs) have been implicated in the pathogenesis of aortic aneurysm because the histology of thoracic aortic aneurysm (TAA) and abdominal aortic aneurysm (AAA) is characterized by the loss of smooth muscle cells in the aortic media and the destruction of extracellular matrix (ECM). Furthermore, AAA have evidence of inflammation and the cellular elements involved in inflammation such as macrophages can produce and/or activate MMPs This chapter focuses on human aortic aneurysm that are not due to specific known genetic causes because this type of aneurysm is the more common type. This chapter will also focus on MMP protein expression rather than on genetic data which may not necessarily translate to increased MMP protein expression. There are supporting data that certain MMPs are increased in the aortic wall. For TAA, it is most notably MMP-1, -9, -12, and -14 and MMP-2 when a bicuspid aortic valve is present. For AAA, it is MMP-1, -2, -3, -9, -12, and -13. The data are weaker or insufficient for the other MMPs. Several studies of gene polymorphisms support MMP-9 for TAA and MMP-3 for AAA as potentially important factors. The signaling pathways in the aorta that can lead to MMP activation include JNK, JAK/stat, osteopontin, and AMP-activated protein kinase alpha2. Substrates in the human vasculature for MMP-3, MMP-9, or MMP-14 include collagen, elastin, ECM glycoprotein, and proteoglycans. Confirmed and potential substrates for MMPs, maintain aortic size and function so that a reduction in their content relative to other components of the aortic wall may produce a failure to maintain aortic size leading to dilatation and aneurysm formation.
journal_name
Prog Mol Biol Transl Scijournal_title
Progress in molecular biology and translational scienceauthors
Rabkin SWdoi
10.1016/bs.pmbts.2017.02.002subject
Has Abstractpub_date
2017-01-01 00:00:00pages
239-265eissn
1877-1173issn
1878-0814pii
S1877-1173(17)30017-0journal_volume
147pub_type
杂志文章,评审abstract：:Experimental data accumulated during the last 10 years strongly support the existence and functional significance of oligomerization of G protein-coupled receptors (GPCRs). In this essay, we discuss the unique biochemical properties of GPCR oligomers in the frame of "allosterism" and how these properties can be used t...
journal_title：Progress in molecular biology and translational science
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更新日期：2012-01-01 00:00:00
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更新日期：2009-01-01 00:00:00
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journal_title：Progress in molecular biology and translational science
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更新日期：2012-01-01 00:00:00
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更新日期：2011-01-01 00:00:00
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journal_title：Progress in molecular biology and translational science
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更新日期：2018-01-01 00:00:00
abstract：:In today's world of genomics and large computational analyses, rapid progress has been made in identifying genes associated with human retinal diseases. Nevertheless, before significant advances toward effective therapeutic intervention is made, a clearer understanding of the molecular and cellular role of these gene ...
journal_title：Progress in molecular biology and translational science
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更新日期：2011-01-01 00:00:00
abstract：:Cannabis has been cultivated and used by humans for thousands of years. Research for decades was focused on understanding the mechanisms of an illegal/addictive drug. This led to the discovery of the vast endocannabinoid system. Research has now shifted to understanding fundamental biological questions related to one ...
journal_title：Progress in molecular biology and translational science
pub_type： 杂志文章,评审
doi：10.1016/bs.pmbts.2015.10.002
更新日期：2016-01-01 00:00:00
