SAN FRANCISCO—To date, evidence on the efficacy of blocking the cytokine tumor necrosis factor (TNF) and its receptors in autoimmune diseases has resulted in the approval by the Food and Drug Administration (FDA) of five anti-TNF agents. Less well known, according to Richard Siegel, MD, PhD, chief, Immunoregulation Section, Autoimmunity Branch, and Clinical Director, NIAMS,…
