Human FGL1/Fibrinogen Like Protein 1 ELISA Kit

Fibrinogen-like protein 1 (FGL1), also known as Hepassocin, is a hepatocyte-secreted glycoprotein that has gained prominence in tumor immunology as a major functional ligand for the LAG-3 inhibitory receptor. The Assay Genie Human FGL1 ELISA Kit provides a quantitative enzyme-linked immunosorbent assay for measuring FGL1 concentrations in human-derived research samples, advancing studies of the FGL1-LAG-3 immune checkpoint axis in hepatocellular carcinoma, chronic hepatitis, and other liver pathologies. Each kit is supplied as a complete reagent set in a microplate format, supporting high-throughput screening of clinical and experimental specimens. The assay enables correlation of circulating FGL1 levels with disease stage, treatment response, and immune cell infiltration within the tumor microenvironment, making it relevant for laboratories pursuing LAG-3-targeted immunotherapy development. Storing reagents refrigerated between uses preserves antibody activity, and aliquoting standards prevents repeated freeze-thaw cycles. Reconstituted standards should be discarded after use rather than refrozen. The kit is intended for research use only and serves investigators in oncology, hepatology, and immunotherapy programs seeking a reliable FGL1 quantification tool for biomarker discovery and mechanistic studies.