Angiogenesis Growth Factors
Angiogenesis Growth Factors - Related Videos
09:04
A Simple Bioassay for the Evaluation of Vascular Endothelial Growth Factors
0 Views •
Cited by 7 •
2016
We describe a simple cell-based bioassay for detecting, quantifying and monitoring the activity of members of the vascular endothelial growth factor family of ligands. The assay uses chimeric receptors expressed in a factor-dependent cell line to provide a semi-quantitative or quantitative assessment of receptor binding and cross-linking by the ligand.
18:30
Rat Mesentery Angiogenesis Assay
0 Views •
Cited by 9 •
2011
Normal adult vascularized mammalian tissue that lacks physiologic angiogenesis and that has not been exposed to surgical intervention is used to study: (i) the initiation and development of angiogenesis following intraperitoneal administration of test agents; and (ii) modification of angiogenesis following systemic administration of selected test agents.
18:27
Preparing T Cell Growth Factor from Rat Splenocytes
0 Views •
Cited by 12 •
2007
We describe the preparation of T cell growth factor used for the in vitro expansion of antigen-specific rat T lymphocyte lines.
10:04
Establishment of a Human Multiple Myeloma Xenograft Model in the Chicken to Study Tumor Growth, Invasion and Angiogenesis
0 Views •
Cited by 16 •
2015
Human multiple myeloma (MM) cells require the supportive microenvironment of mesenchymal cells and extracellular matrix components for survival and proliferation. We established an in vivo chicken embryo model with engrafted human myeloma and mesenchymal cells to study effects of cancer drugs on tumor growth, invasion and angiogenesis.
10:29
Christopher Hughes: An in vitro model for the Study of Angiogenesis (Interview)
0 Views •
Cited by 1 •
2007
Christopher C.W. Hughes describes the utility of his culture system for studying angiogenesis in vitro. He explains the importance of fibroblasts that secrete a critical, yet unidentified, soluble factor that allow endothelial cells to form vessels in culture that branch, form proper lumens, and undergo anastamosis.
FAQs
Low oxygen and tissue injury act as signals that increase the need for vascular support. In this setting, factors such as VEGF engage receptors on endothelial cells and activate pathways linked to cell survival, proliferation, and migration. These responses help initiate new vessel formation where tissue growth or repair requires improved blood supply.
These signaling proteins contribute to different but coordinated aspects of vascular development. VEGF strongly promotes endothelial-cell survival, proliferation, and migration, while fibroblast growth factors provide additional regulatory input. PDGF and angiopoietins help coordinate supporting cells and vascular stability, connecting the early formation of vessels with their subsequent maturation.
Endothelial-cell proliferation and migration can start the formation of new vessels, but developing vasculature also requires stabilization. Signals involving PDGF and angiopoietins coordinate supporting cells and promote vascular stability. This distinction matters because angiogenesis is not limited to producing new vascular structures; it also includes organizing them into a more mature and stable network.
Because these factors regulate vascular growth and stability, they can be targeted in opposite therapeutic directions. Treatments may stimulate blood-vessel growth when additional vascular development is desirable, or inhibit it when excessive vascularization contributes to disease. The same signaling system therefore provides a basis for both promoting repair and limiting pathological vessel formation.
Angiogenesis growth factors are relevant to several major biological settings, including embryonic development, wound healing, tumor vascularization, and cardiovascular disease. Their effects help connect vascular regulation with tissue growth and repair, while abnormal or excessive signaling can support disease progression. Comparing these contexts shows why angiogenesis is central to both normal biology and pathology.
Studying these signals reveals how cells communicate to control endothelial-cell behavior, supporting-cell coordination, and vascular stability. It also helps explain how blood vessels respond to low oxygen or injury and how vascularization contributes to tumors and cardiovascular disease. This knowledge can guide approaches that either enhance tissue repair or restrict disease-associated vessel growth.