Cytokines are signaling molecules that play critical roles in many biological processes such as cellular growth, differentiation, gene expression, migration, immunity, and inflammation. Cytokines that are secreted from cells bind to cell-surface receptors, initiate the activation of signal transduction pathways, and mediate cell to cell communication. The malfunction of cytokine signaling leads to many diseases, including arthritis, acute and chronic liver disease, inflammatory bowel disease, cardiac-related diseases, and cancers. Since cytokines are often involved in biological and disease processes, analyzing the expression pattern of a variety of cytokines may help us better understand how abnormalities in cytokine function give rise to various diseases. Signosis� Mouse Cytokine ELISA Plate Array I is a biochemical detection assay that can measure the abundance of 24 mouse cytokines simultaneously. This fast and sensitive assay can quantitatively compare the expression levels of these cytokines between different samples.