Multiplex analysis of expression of three IFNbeta-induced genes in antibody-positive MS patients.

Pachner, Andrew R; Narayan, Kavitha; Pak, Elena · Neurology · 2006

case_series · Level IV

Where this comes from

Abstract

Some interferon beta (IFNbeta)-treated patients with multiple sclerosis develop antibody-mediated decreased bioactivity with resultant loss of therapeutic effect. The authors developed real-time multiplex reverse transcriptase PCR to measure expression of three IFNbeta-inducible genes to directly assess IFNbeta bioactivity in patients with neutralizing antibodies (NAbs). The three genes responded in tandem. Correlation of NAb level with bioactivity at low/moderate NAb levels was poor, indicating that for such patients, direct measurement of IFNbeta bioactivity is most reliable.

Medical subject headings