Quantitative colorimetric assay. The Human TSLP ELISA is capable of recognizing both recombinant and naturally produced Human TSLP proteins. The antigens listed below were tested at 50 ng/ml and did not exhibit significant cross reactivity or interference. ? Human: IL-2, IL-4, IL-5, IL-7, IL-9, IL-10, IL-13, IL-15, IFN-gamma, MDC (69 aa), SCF, TARC, TNF-alpha? Murine: IL-7? Rat: IL-7. Sample types: cell lysates, plasma, serum. Range: 16 - 2000 pg/ml.