Thymic Stromal Lymphopoietin (TSLP) is a hematopoietic cytokine, produced in several tissues including heart, liver and prostate. TSLP sends signals through a heterodimeric receptor complex, containingthe TSLP-R and the IL-7R alpha chain to induce the release of T cell-attracting chemokines from monocytes. Recombinant TSLP is a non-glycosylated Protein, containing 132 amino acids, with a molecular weight of 15 kDa.