Cellular Technology Limited (CTL) specializes in cell mediated immunity. We offer automated image analyzers (ImmunoSpotR), serum -free reagents (for use in e.g. ELISPOT, measuring NK activity), and cryopreserved PBMCs. Our CLIA certified laboratory services includes: Isolation and cryopreservation of PBMC, GCP and GLP compliant testing (using e.g. ELISPOT, ELISA, FACS, killer assays etc.. ), and customized assay development/validation and testing.