cDNA expression library screening for identification of novel onconeural antigens.

Paraneoplastic neurological disorders occur as a remote effect of cancer. Tumor cells expressing neuron-specific proteins elicit an autoimmune response, resulting in the production of various antibodies. The antibodies are usually associated with different syndromes, but the identity of many of the antigens is still unknown. Screening a cDNA expression library is a powerful technique that allows identification of previously uncharacterized antigens. By using patient sera containing antibodies, the antigens of interest can be isolated and further characterized.