Human Surfactant Associated Protein B (SPB) ELISA Kit

Surfactant Protein B (SP-B) is a hydrophobic 79-residue mature peptide (~8 kDa) that organizes the pulmonary phospholipid film at the alveolar air-liquid interface. Loss of SP-B function is implicated in neonatal respiratory distress syndrome, hereditary surfactant deficiency, and interstitial lung disease, making quantitative monitoring valuable for pulmonary research workflows. The Assay Genie ELISA kit is built for measurement of human SP-B across multiple relevant matrices, including patient plasma or serum specimens, bronchoalveolar lavage fluid, lung tissue homogenates, cell culture supernatants, and cell lysates, supporting both in vitro airway epithelial models and ex vivo tissue studies. A standard ninety-six-assay plate configuration suits longitudinal or cohort-based experimental designs where matched controls and standard curves are run in parallel. Researchers studying SFTPB expression, surfactant biogenesis, or chronic lung conditions such as pulmonary alveolar proteinosis will find this assay format appropriate for biomarker quantification and treatment-response studies.