Detection of surface-associated human leukocyte elastase

Details Detection of surface-associated human leukocyte elastase Detection of surface-associated human leukocyte elastase

2006-06-13

2010-11-16

Saunders, David A. (Department: 1644)

Chemistry: molecular biology and microbiology

Measuring or testing process involving enzymes or...

Involving antigen-antibody binding, specific binding protein...

C435S007240, C435S007400, C435S962000

Reexamination Certificate

active

07833735

ABSTRACT:
In order to accurately and reliably quantitate HLE on the plasma membranes of the lymphocytes and mononuclear phagocytes, a test sample containing the lymphocytes and mononuclear phagocytes is initially treated with a first antiserum specific for CD4 receptors on the plasma membrane or with a second antiserum specific for chemokine receptors on the plasma membrane. Once the CD4 or chemokine receptors have been rendered non-reactive (competitive) relative to the HLE receptors (also “binding sites”) on the plasma membrane, the test sample is contacted with an immunoreagent specific for interaction with one or more of the HLE receptors on the plasma membranes of the lymphocytes and mononuclear phagocytes. The immunoreagent forms a complex with the HLE binding sites and produces a characteristic physical change in the lymphocytes and mononuclear phagocytes that can be monitored by anyone of a number of standard techniques, (e.g., confocal laser scanning microscopy and flow cytometry).

REFERENCES:
patent: 6858400 (2005-02-01), Bristow

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