变构激动剂多肽ATI 2341-abs814373

一、产品概述

二、产品信息

ATI-2341 induces CXCR4- and G protein-dependent signaling, receptor internalization, and chemotaxis in CXCR4-expressing cells. It is the most potent agonist with an EC50 value of 194 ± 16 nM and an intrinsic activity of 81 ± 4%. ATI-2341 is a potent and efficacious mobilizer of bone marrow PMNs(polymorphonuclear neutrophils) and HSPCs(hematopoietic stem and progenitor cells) and could represent a previously undescribed therapeutic approach for the recruitment of HSPCs before ABMT(autologous bone marrow transplantation). ATI-2341 is able to induce chemotaxis of CCRF-CEM cells, inducing the typical bell-shaped curve observed with chemotactic agents.

Intraperitoneal (i.p.) injection of ATI-2341 in BALB/c mice results in a dose-dependent recruitment of PMNs into the peritoneum, with a maximal effect seen at 405 nmol/kg. A higher concentration of ATI-2341 results in reduced recruitment, which is reminiscent of the bell-shaped curve generally seen with chemotactic agents. Intravenous (i.v.) administration of ATI-2341 in mice results in a dose-dependent increase in PMNs in the peripheral circulation, measured 90 min after administration of compound. The effect is maximal at 0.66 μmol/kg of ATI-2341. ATI-2341 has no effect on the mobilization of lymphocytes at any dose tested.

三、背景

四、制备和贮存

五、产品特点

六、注意事项