Human Surfactant Associated Protein D (SPD) ELISA Kit

Surfactant Protein D (SP-D) is a lung collectin critical to pulmonary innate immunity and surfactant homeostasis, and this Assay Genie kit provides a quantitative immunoassay for measuring SP-D in human research samples. Researchers studying idiopathic pulmonary fibrosis, COPD, cystic fibrosis, acute respiratory distress syndrome, neonatal respiratory distress, and other pulmonary inflammatory or infectious conditions use SP-D as a biomarker for epithelial injury and disease severity. The kit is configured for 96 assays and is validated for serum or plasma specimens, tissue homogenates, cell lysates, lung lavage fluid, and cell culture supernatants, supporting diverse in vitro experimental designs from cell culture work to preclinical animal model readouts and human clinical sample analysis. Detection is performed by absorbance reading, and the procedure follows a standard ELISA workflow for research use only applications. Each kit includes the necessary reagents, microplate wells, and buffers required to complete the assay, with the protocol documented in the supplied insert. SP-D concentrations measured with this kit can be used to evaluate changes in pulmonary surfactant biology, host defense responses, and lung barrier integrity across disease models.