Non-neutralizing antibodies increase endogenous circulating Ang1 levels.

Abstract:

:Ang1 is a soluble ligand to receptor Tie2, and increasing the circulating Ang1 level may improve vascular stabilization under certain disease conditions. Here, we found that the circulating Ang1 level was significantly increased in cynomolgus monkeys treated with non-neutralizing anti-Ang1 antibodies. Improving the antibodies' pharmacokinetic properties by IgG Fc mutations further increased the circulating Ang1 level. However, the mutations decreased the thermal stability of the molecules, which may limit their use as therapeutic antibodies. Nevertheless, we showed that non-neutralizing antibodies may have therapeutic potential by increasing the level of a target molecule in the circulation.

journal_name

MAbs

journal_title

mAbs

authors

Zheng C,Toth J,Bigwarfe T,MacDougall M,Jerath K,Bovat K,Smith J,Sun P,Hayes D,Fryer R,Singh S,Kroe-Barrett R

doi

10.1080/19420862.2018.1521130

subject

Has Abstract

pub_date

2018-11-01 00:00:00

pages

1260-1268

issue

8

eissn

1942-0862

issn

1942-0870

journal_volume

10

pub_type

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