Diagnostics using conditionally active antibodies
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United States of America Patent
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Jun 30, 2020
Grant Date -
Jul 13, 2017
app pub date -
Jan 11, 2017
filing date -
Jan 12, 2016
priority date (Note) -
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Abstract
A method of detecting tumor cells in a sample containing cells. In the method, a sample is encapsulated to produce a capsule with the sample encapsulated therein. The capsule containing the sample encapsulated therein is incubated under cell culture conditions suitable for supporting cell activity and growth of tumor cells and the encapsulated sample from the incubated capsule is contacted with a conditionally active antibody that has a higher binding affinity to a cell surface protein of a tumor cell under a first value of a condition of a tumor microenvironment, in comparison with the binding affinity of the conditionally active antibody to the same cell surface protein under a second value of the condition.
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