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Microbiology, 2021

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808 20 • Laboratory Analysis of the Immune Response<br />

Figure 20.4 Monoclonal antibodies (mAbs) are produced by introducing an antigen to a mouse and then fusing polyclonal B cells from the<br />

mouse’s spleen to myeloma cells. The resulting hybridoma cells are cultured and continue to produce antibodies to the antigen.<br />

Hybridomas producing the desired mAb are then grown in large numbers on a selective medium that is periodically harvested to obtain the<br />

desired mAbs.<br />

Characteristics of Polyclonal and Monoclonal Antibodies<br />

Monoclonal Antibodies<br />

Expensive production<br />

Long production time<br />

Large quantities of specific antibodies<br />

Recognize a single epitope on an antigen<br />

Polyclonal Antibodies<br />

Inexpensive production<br />

Rapid production<br />

Large quantities of nonspecific<br />

antibodies<br />

Recognize multiple epitopes on an<br />

antigen<br />

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