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Biomarker: Tie-2

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Human K2 EDTA Plasma

Disease State:



Required Sample Volume:

50 µL/well


LLOQ: 306 pg/mL
ULOQ: 139,780 pg/mL

Biological or Clinical Significance:

The angiopoietin receptors are receptors that bind angiopoietin.

TIE-1 and TIE-2 comprise the cell-surface receptors that bind and are activated by the angiopoietins, (Ang1, Ang2, Ang3, Ang4). The angiopoietins are protein growth factors required for the formation of blood vessels (angiogenesis). Ang1 and Ang4 function as agonistic or activating ligands for Tie2, whereas Ang2 and Ang3 behave as competitive antagonists. They function by binding their physiologic receptors, Tie-1 and Tie-2. Tie-2 is capable of physiologic activation as a result of binding the angiopoietins.


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