Maisonpierre Peter C

TL;DR: The discovery of a negative regulator acting on Tie2 emphasizes the need for exquisite regulation of this angiogenic receptor system.

TL;DR: It is shown that mice engineered to lack Angiopoietin-1 display angiogenic deficits reminiscent of those previously seen in mice lacking TIE2, demonstrating that AngiopOietIn-1 is a primary physiologic ligand for TIE1 and that it has critical in vivo angiogenesis actions that are distinct from VEGF and that are not reflected in the classic in vitro assays used to characterize VEGf.

TL;DR: Evidence is presented here that a subset of tumors instead initially grows by coopting existing host vessels and regresses, leading to a secondarily avascular tumor and massive tumor cell loss.

TL;DR: The identification of a secreted ligand for TIE2, termed Angiopoietin-1, is reported using a novel expression cloning technique that involves intracellular trapping and detection of the ligand in COS cells.

TL;DR: The distribution of NT-3 messenger RNA and its biological activity on a variety of neuronal populations clearly distinguishNT-3 from NGF and BDNF, and provide compelling evidence that NT- 3 is an authentic neurotrophic factor that has its own characteristic role in vivo.