Human CCR8 Stable Cell Line - HEK293T

CCR8, also known as C-C motif chemokine receptor 8, is a seven-transmembrane G protein-coupled receptor encoded by the CCR8 gene located on chromosome 3p22.1. This receptor is a member of the beta chemokine receptor family and interacts primarily with its endogenous ligand CCL1 (I-309), as well as CCL17 and CCL4 to a lesser extent. CCR8 is preferentially expressed in the thymus and on certain immune cell populations, including regulatory T cells, Th2 cells, and tissue-resident memory T cells, where it plays a role in cell migration, chemotaxis, and immune regulation. The Human CCR8 Stable Cell Line - HEK293T is a recombinant cell line generated by stable transfection of the human CCR8 gene into the HEK293T background, enabling consistent and high-level surface expression of the functional receptor. This well-characterized cell line provides a reliable in vitro system for studying CCR8-mediated signaling pathways without the interference of endogenous receptor expression.

This cell line is widely used in drug discovery and preclinical research, particularly for screening and characterizing small molecule antagonists, neutralizing antibodies, and other therapeutic candidates targeting CCR8. With the growing interest in CCR8 as a checkpoint target in immuno-oncology, given its selective expression on tumor-infiltrating regulatory T cells, this stable cell line serves as a valuable tool for evaluating compound potency, binding affinity, and selectivity in a cellular context. It supports a range of functional assays, including calcium flux measurements, GPCR signaling studies via cAMP or beta-arrestin recruitment, flow cytometry-based binding analysis, and internalization assays. The line also facilitates the development of cell-based assays for high-throughput screening campaigns and can be used for investigating receptor-ligand interactions, epitope mapping of anti-CCR8 antibodies, and assessing the pharmacological properties of drug candidates aimed at modulating CCR8 activity in inflammation, autoimmune diseases, and cancer.