Immunological modulation in health and disease

摘要

The immune system is a complex network of cells,tissues,and organs that protect the body from pathogens and diseases.It consists of two interconnected branches:the innate immune response and the adaptive immune response.The innate immune response is the body’s first line of defense against pathogens and acts promptly upon encountering them.It consists of physical barriers such as skin and mucous membranes and innate immune cells such as neutrophils,macrophages,and natural killer cells.These cells recognize pathogen-associated molecular patterns shared by pathogens and initiate an immune response to eliminate them[1].