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Updated: Aug 13, 2026

Rat Mesentery Angiogenesis Assay
Published on: June 18, 2011
A putative angiogenin receptor in angiogenin-responsive human endothelial cells
G F Hu1, J F Riordan, B L Vallee
1Center for Biochemical and Biophysical Sciences and Medicine, Harvard Medical School, Boston, MA 02115, USA.
Abstract:
Angiogenin stimulates both [3H]thymidine incorporation and proliferation of human endothelial cells in sparse cultures. Under these conditions, a 170-kDa cell surface protein can be detected that binds angiogenin specifically. Angiogenin-stimulated cell growth is concentration-dependent and is completely inhibited by an anti-angiogenin monoclonal antibody, but not by a nonimmune control antibody. It is not affected by the nonangiogenic homolog, RNase A, nor by other angiogenic proteins, such as basic fibroblast growth factor and its antibody. Results suggest that under specific conditions, endothelial cells express an angiogenin receptor that may mediate angiogenin-stimulated DNA synthesis and proliferation and play an important role in angiogenin-induced angiogenesis.
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