Adjuvant polyarthritis I: incorporation of quantitative measurements of humoral and cellular immune response.

A modified model of adjuvant arthritis is described that permits simultaneous quantitative measurement of the humoral and the cellular immune response to a secondary immunogen (el4 cells) in the arthritic rat. Application of the new model system to mechanism studies is illustrated with cyclophosphamide. The drug is shown to suppress adjuvant arthritis by a combined anti-inflammatory and immunosuppressive action.