Cytokines are hormone like molecules that can control reactions between cells. They activate immune-system cells, such as lymphocytes and macrophages. Cytokine bioassay services are offered by many organization. The organization offers to the scientific community a unique service, Cytokine bioassays including, proliferation & neutralization, in vitro cytotoxicity, complement dependent cytotoxicity (CDCC), agonist & Antagonist screening, as well as Cytokine release assay. They assure strict confidentiality and superior execution which will be delivered on a timely basis & cost effective manner. The expected turnover time per assay is less than two weeks, and a written report including methods, results & conclusions will be issued. The organization is determined to maintain the highest standards & deliver the highest quality products and services. Most of the bioassays are based on a colorimetric method of measuring cell activity using a non-radioactive substrate. This assay has been proven to be equivalent to the [3H]thymidine incorporated assay (cell signaling applications guide, Promega Corporation). The compound and the standard (if required) are reconstituted, serial diluted & incubated with the cells over a 20 to 96 hour period