Used in immunological research to quantitatively measure levels of Pentraxin 3 (PTX3) in biological samples such as serum, plasma, and tissue homogenates. This ELISA kit is particularly valuable in studies related to inflammation, infection, cardiovascular diseases, and cancer, where PTX3 serves as a biomarker. It enables researchers to assess innate immune responses and monitor disease progression or therapeutic outcomes in experimental models. The assay is widely applied in clinical research settings to investigate the role of PTX3 in acute and chronic inflammatory conditions.