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RBCs with a positive DAT due to IgG coating require the use of directly agglutinating reagents or treatment with chemicals to remove sufficient IgG to permit typing of the RBCs with antisera that require use of the IAT. In this study we demonstrate that murine IgG MoAbs to human RBC antigens can be used as an alternative if the anti-mouse IgG is neutralized(More)
Red blood cells (RBC) stored without plasma in a neomycin, low ionic strength medium at 4 degrees C in excess of 24 h show alterations in antigen reactivity. There is a loss of protease-sensitive RBC antigens and a protease-type increased IgG saline agglutinability of Rh antigens that is associated with increased binding of 125I anti-D. Both the serological(More)
Previous studies have shown that RBCs with residual WBCs stored in LISS and neomycin sulfate develop characteristics associated with enzyme-treated RBCs. During a mass screening program to antigen type donor RBCs, we observed that the Fya antigens on a RBC sample from an in-house panel became non-detectable with anti-Fya after incubation overnight in(More)
Since monoclonal antibodies (Mabs) are potentially available in an unlimited volume, they can be used to screen numerous donor blood samples to identify antigen-negative donors. We have used a Mab (MIMA-9) with characteristics that allow for the simultaneous screening of RBCs of any ABO group for high-incidence antigen-negativity in the Kell and Gerbich(More)
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