TY - JOUR
T1 - Affinity ranking of influenza neuraminidase mutants with monoclonal antibodies using an optocal biosensor comparison with ELISA and slot blot assays
AU - Gruen, L. C.
AU - McKimm-Breschkin, J. L.
AU - Caldwell, J. B.
AU - Nice, E. C.
PY - 1994/1/12
Y1 - 1994/1/12
N2 - A recently developed alternative to the more traditional techniques for studying antigen-antibody interactions has been examined. This method involves the use of an optical biosensor employing surface plasmon resonance detection. In this system one of the reactants is immobilized on the sensor surface and other reactants are passed over the sensor surface sequentially at a constant flow rate. Binding phenomena are detected in real time from changes in the angle at which surface plasmon resonance occurs. This is dependent, among other things, on changes in the refractive index (which is directly proportional to the mass) at or near to the sensor surface. Applications of this biosensor technique for comparing the binding of related neuraminidases, purified from escape mutants of influenza virus NWS/G70C/75 (N9), to two antibody Fab fragments, are described. These results were compared with those obtained from ELISA and slot blot assays on the same neuraminidases interacting with the same two monoclonal antibodies. The biosensor method was shown to be highly specific, permitting rapid screening of binding in such antigen-antibody systems.
AB - A recently developed alternative to the more traditional techniques for studying antigen-antibody interactions has been examined. This method involves the use of an optical biosensor employing surface plasmon resonance detection. In this system one of the reactants is immobilized on the sensor surface and other reactants are passed over the sensor surface sequentially at a constant flow rate. Binding phenomena are detected in real time from changes in the angle at which surface plasmon resonance occurs. This is dependent, among other things, on changes in the refractive index (which is directly proportional to the mass) at or near to the sensor surface. Applications of this biosensor technique for comparing the binding of related neuraminidases, purified from escape mutants of influenza virus NWS/G70C/75 (N9), to two antibody Fab fragments, are described. These results were compared with those obtained from ELISA and slot blot assays on the same neuraminidases interacting with the same two monoclonal antibodies. The biosensor method was shown to be highly specific, permitting rapid screening of binding in such antigen-antibody systems.
KW - Affinity
KW - Antigen-antibody interaction
KW - Biosensor
KW - Fab fragment
KW - Mutant
KW - Neuraminidase
KW - Surface plasmon resonance
UR - http://www.scopus.com/inward/record.url?scp=0028013109&partnerID=8YFLogxK
U2 - 10.1016/0022-1759(94)90213-5
DO - 10.1016/0022-1759(94)90213-5
M3 - Article
C2 - 8288899
AN - SCOPUS:0028013109
VL - 168
SP - 91
EP - 100
JO - Journal of Immunological Methods
JF - Journal of Immunological Methods
SN - 0022-1759
IS - 1
ER -