LAYERED DEVICE WITH CAPTURE REGIONS FOR CELLULES ANALYSIS

摘要

Disclosed herein are substrates having different capture regions, such as contiguous layers, wherein the different capture regions of the substrate contain different identification molecules. Components of the specimen are transfered through the capture regions under conditions which allow the components to interact with different identification molecules in the different regions of the substrate. Transfer is effected by capillary action of a solution moving through the cellular specimen or by electrophoresis. The transfer may occur in such a way as to maintain a geometric correspondence to the specimen, e.g. a correspondence to the cytoarchitecture of a cellular specimen. Example of cellular specimens include tissue sections such as tumor tissue sections. Cytostat sections cut slightly thicker than usual, i.e. 25 to 50 mu m, allow the detection of molecules of moderate and low level abundance.