Lysophosphatidic Acid Enhances Stromal Cell-Directed Angiogenesis
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Lysophosphatidic Acid Enhances Stromal Cell-Directed Angiogenesis
Ischemic diseases such as peripheral vascular disease (PVD) affect more than 15% of the general population and in severe cases result in ulcers, necrosis, and limb loss. While the therapeutic delivery of growth factors to promote angiogenesis has been widely investigated, large-scale implementation is limited by strategies to effectively deliver costly recombinant proteins. Multipotent adipose-...
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Lysophosphatidic acid (LPA) as a bioactive phospholipid signaling mediator is emerging as an important regulator of endothelial cell functions and angiogenesis. Many studies have shown that LPA is an active player in regulating the processes of endothelial cell migration, proliferation, and differentiation, all essential in angiogenesis. Through modulating angiogenesis associated gene expressio...
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A new primitive hematopoietic cell line (THS119), exhibiting Lin(-)/Sca-1(+)/c-Kit(+) a surface phenotype, grew and survived underneath stromal cells (TBR59). The ability of the THS119 cells to invade these stromal cell layers was dependent on the inclusion of serum in the culture medium. This was apparently due to a requirement for lipids contained in serum. Their invasion of the stromal cell ...
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1-Oleoyl lysophosphatidic acid (LPA) enhanced binding of 125I-labeled fibronectin by cultured MG-63 osteosarcoma cells and human fibroblasts in monolayer cultures up to threefold over control levels. For osteosarcoma cells, LPA was minimally active at 0.1 ng/mL (0.2 nmol/L) and reached maximal activity at 10 ng/mL (20 nmol/L). Increased binding was evident within 10 minutes of treatment of cycl...
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The effects of the simple phospholipid mediator lysophosphatidic acid (LPA) on the contractile responsiveness of isolated tracheal rings from rabbits and cats were assessed. In both species, LPA increased the contractile response to the muscarinic agonist methacholine, but LPA did not induce contraction on its own. Conversely, LPA decreased the relaxation response to the beta-adrenergic-agonist...
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ژورنال
عنوان ژورنال: PLoS ONE
سال: 2013
ISSN: 1932-6203
DOI: 10.1371/journal.pone.0082134