Patent ID: 9625446
Date: 2017-04-18
CPC Classifications: G01N

Claim:
1. A method comprising: immunohistochemically staining a first breast tissue or first breast cell sample from a breast cancer patient to whom a c-kit inhibitor has been administered with one or a plurality of detectably-labeled antibodies, wherein said one or plurality of detectably-labeled antibodies comprises at least one antibody that is immunologically specific for one or a plurality of biological markers selected from c-kit, SCF, pAKT, and pc-kit, wherein said detectable label is a chromogen or a fluorophore; immunohistochemically staining a second breast tissue or second breast cell sample from the breast cancer patient with the one or the plurality of detectably-labeled antibodies, wherein the detectable label is a chromogen or a fluorophore, and wherein the second breast tissue or the second breast cell sample is taken from the breast cancer patient before the c-kit inhibitor has been administered; and determining an optical density of the chromogen or fluorophore in the first tissue or first cell sample and in the second tissue or second cell sample.