Researchers at the National Cancer Institute (NCI) have developed an engineered storage unit for frozen tissue, that provides a permanent base on which to mount tissue frozen in OCT and an enclosure for storage. The unit provides for chain-of-custody labeling and acts as an insulating container to protect the specimen. Other elements include devices for freezing the tissue to the base, as well as a holder for the base to facilitate cryosectioning. Application of the storage system allows a frozen tissue specimen to be moved between storage and cryosectioning without loss of label, deformation of tissue, or thermal alterations.
Testing for biological activity of glucocorticoids and many other steroid endocrine-disrupting chemicals (EDCs) has not been previously performed. An automated, highly reproducible, and low cost assay detects biologically active steroidal EDCs and is suitable for wide application in testing water samples. The National Cancer Institute seeks partners for collaborative co-development research and/or licensing to move this technology into the public domain.