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Novel Drugs Selectively Target Pathway Important In Rheumatoid Arthritis
Methotrexate (MTX), a folate antagonist that blocks folic acid activity, is the most widely used disease-modifying antirheumatic drug (DMARD) for rheumatoid arthritis. It enters the cell via several pathways, one of which involves folate receptor β (FRβ), which is highly specific for cells present in the joints of patients with rheumatoid arthritis (RA).