Bead assay for detection of viral infection

From: Tony Schountz (tschount@mesastate.edu)
Date: Fri Apr 12 2002 - 17:26:43 EST


I'd like opinions on developing a bead assay for detecting antibody
responses by flow cytometry. This assay would be used for assessing
immune status of mice immunized with hantaviral nucleocapsid antigen,
and eventually we'd like to get it going for humans as well. Right now,
the turnaround time for the current test (ELISA) in humans is 2 days,
and by that time the patient is either dead or on the road to recovery.

I'm planning to coat polystyrene beads from Bangs Labs with recombinant
nucleocapsid antigen, then testing serum samples for antibody responses
by detecting with anti-IgG-FITC and anti-IgM-PE. My concern lies
primarily with coating the beads with the antigens. I was hoping that if
anyone on the group has experience with this approach that they might
share some of their insights.

Thanks,

Tony
--
Tony Schountz, Ph.D.
Dept. of Biology
Mesa State College



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