Natural Polyreactive IgA Antibodies Coat the Intestinal Microbiota
Summary by Dr. Katie Golden, MD Immunoglobulin A (IgA), an antibody produced by plasma cells that plays a pivotal role in adaptive immunity, is the most abundant mammalian antibody. It is often found at barrier surfaces, such as the intestinal mucosa, where it serves as a first line of defense against enteric pathogens. IgA responses […]