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. 2007 Feb;28(6):1289-97.
doi: 10.1016/j.biomaterials.2006.11.007.

Antibody arrays for quantitative immunophenotyping

Koichi Kato  1 , Mitsuaki Toda, Hiroo Iwata
Affiliations

Antibody arrays for quantitative immunophenotyping

Koichi Kato et al. Biomaterials. 2007 Feb.

Abstract

Detection of multiple surface antigens expressed on living cell is an important step for cell processing and clinical diagnosis. Here we describe the preparation of antibody arrays that allow parallel detection of multiple surface antigens through affinity binding of living cells. An antibody array was fabricated by photo-assisted patterning of an alkanethiol monolayer formed on a gold-coated glass plate and subsequent immobilization of antibodies specific for cell surface antigens in an array format. We demonstrate here that rapid phenotyping can be performed on the array for both adhesion-dependent and non-dependent cells by direct cell binding assays. The density of bound cells on each antibody spot was in accordance with their contents in an original suspension. This result suggests the feasibility of the array-based method for quantitative assessment of multiple antigen expression. These findings will serve to extend the range of fundamental and clinical applications of antibody arrays.

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