Human LAG3 Stable Cell Line - Jurkat, Clone E6-1

Lymphocyte activation gene 3 (LAG3) is a crucial component of the human biological framework, playing a vital regulatory role under various physiological and pathological conditions. LAG3 is a cell surface molecule that acts as an immune checkpoint, negatively regulating T cell activation and proliferation. It has a higher affinity for MHC class II molecules than CD4, making it a key target for cancer immunotherapy. LAG3 is expressed on activated T cells, NK cells, and B cells; blocking LAG3 can restore the effector function of exhausted T cells in chronic viral infections and tumors. At the molecular level, LAG3 participates in complex signaling pathways and may function as a signaling molecule. Its precise regulation is essential for maintaining cellular homeostasis, metabolic flux, and the correct interpretation of environmental signals. Extensive scientific evidence indicates that abnormal LAG3 activity—whether stemming from genomic alterations, transcriptional dysregulation, or post-translational modifications—is closely associated with various human diseases, including tumorigenesis, neurodegenerative diseases, and metabolic syndrome.

The human LAG3 stable cell line—the Jurkat E6-1 clone—is a high-fidelity cell model designed to provide a stable and scalable platform for cutting-edge biomedical research and drug discovery. By stably integrating the human LAG3 transgene into the host genome, this product ensures consistent and uniform expression levels, thus avoiding the inherent limitations of transient transfection, such as large batch-to-batch variability and transfection-induced cellular stress. This phenotypic stability is crucial for executing rigorous long-term experimental protocols and establishing reproducible bioassays that meet the stringent requirements of drug development. The stable human LAG3 cell line—Jurkat E6-1 clone—is an ideal tool for high-throughput screening of various chemical and biological libraries, enabling the identification of novel regulators of LAG3 function. In addition to screening, this cell line supports a variety of functional assays, including signal transduction mapping analysis, ligand binding kinetics studies, and phenotypic analyses such as cell viability, migration, and apoptosis.