PubMed · 14800360
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G FRONTALI. 1950. [The endothelial constitution].. https://pubmed.ncbi.nlm.nih.gov/14800360/
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Following arterial occlusion, blood vessels respond by sprouting new capillaries (i.e. angiogenesis) and by growing and remodelling pre-existing arterioles into physiologically relevant arteries (i.e. arteriogenesis). The importance of nitric oxide (NO) in ischemia-induced angiogenesis is supported by 4 main findings: (i) the ischemic limb shows an increase in endothelial nitric oxide synthase (eNOS) mRNA, protein expression and NO synthesis; (ii) the absence of the NO pathway (by either pharmacological inhibition or gene disruption of eNOS) abolishes ischemia-induced angiogenesis; (iii) supplementation of NO by the use of exogenous sources restores ischemia-induced angiogenesis; and (iv) cardiovascular diseases associated with decreased NO synthesis show impaired ischemia-induced angiogenesis. Thus, impairment of the NO metabolic pathway could be one of the main contributing factors for the development of peripheral arterial occlusive disease. The restoration of normal NO levels in diseased arteries is therefore a major therapeutic goal; this could be achieved by supplementation with exogenous NO or by strategies designed to increase the concentration of endogenous NO.
Pre-eclampsia is a common and potentially dangerous disorder of human pregnancy. The maternal syndrome of hypertension, proteinuria and oedema is part of a severe systemic inflammatory response that includes leukocyte and endothelial cell activation. Although the origins of pre-eclampsia remain unclear, a major cause is the failure to develop an adequate blood supply to the placenta, leading to placental oxidative stress. This results in the excess release of placental factors, such as syncytiotrophoblast debris or soluble fms-like tyrosine kinase-1 (sFlt-1), the soluble receptor for vascular endothelial growth factor (VEGF), into the maternal circulation, where they trigger an inflammatory response and endothelial dysfunction. Alternatively, pre-eclampsia can develop in the presence of a normal placenta in women that are susceptible to systemic inflammation, such as with chronic cardiovascular disease or diabetes. While clinical management of pre-eclampsia does not currently include anti-inflammatory agents, current research is focusing on ways to reduce inflammation and oxidative stress.
BacterioMatch Two-Hybrid System (Stratagene) was applied in order to identify potential human TIMAP interaction proteins in the lung. TIMAP highly expressed in endothelial cells and may be involved in endothelial cytoskeletal and barrier regulation. Seven TIMAP interacting partner proteins were identified. Four of identified proteins: cystein and glycine-rich protein 1, eukaryotic translation elongation factor 2, U5 snRNP-specific protein 116 kD, and solute carrier family 3 member 2 are involved in actin cytoskeleton organization, cell adhesion or translation and transcriptional regulation.