| Assay Method Information | |
| | Cell adhesion assay to SW480 |
| Description: | The blockade of integrin alpha 5 beta 1 provides a novel target for the treatment of asthma. As shown in FIGS. 1A and 1B, delivery of ATN-161, a low affinity yet specific inhibitor of alpha5beta1, reduces the magnitude of airway narrowing in vivo in mice sensitized and challenged with ovalbumin, a widely used model of allergic asthma. In the same model, it was found that mice with a specific deletion of this integrin in smooth muscle also have reduced airway narrowing. The intracellular actin-myosin cross-bridging pathway serves as a useful target. Modulating the interactions of the cell and the extracellular matrix impairs the ability of the smooth muscle to transmit tension effectively. The blockade of integrin alpha 5 beta 1 was tested in vitro with human cell lines as well as in vivo with a mouse model of airway hyperresponsiveness. Novel compounds as described herein, and identified in Table 1, have been synthesized and tested in vitro for their ability to inhibit cell adhesion mediated by alpha5beta1 (adhesion of the colon carcinoma cell line SW480 to fibronectin, a response that is entirely dependent on binding of alpha5beta1 to fibronectin). |
| Affinity data for this assay | |
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