immune disorders
Innate Immunity
Basophils
Basophils do not ingest foreign cells. They contain granules filled with histamine, a substance involved in allergic reactions. When basophils encounter allergens (antigens that cause allergic reactions), they release histamine. Histamine increases blood flow to damaged tissues, resulting in swelling and Molecules . Basophils also produce substances that attract neutrophils and eosinophils to a trouble spot. 