Abstract: Provided are screening assays for identifying and evaluating compounds with antioxidant and/or antiproliferative activities.

Abstract: Provided are combinations and methods for enhancing ligand binding to neurotensin receptor (NTR). Such combinations and methods are useful for applications such as (a) assessing NTR expression, NTR coupling, and NTR function in vitro, (b) assessing NTR expression or NTR function in vivo, (c) imaging tumors; and (d) targeting therapeutics to NTR expressing cells.

Abstract: Disclosed is a method for preparing a photosensitive peptide which is capable of being activated or deactivated in a biological system, including the steps of: (a) providing an amino acid including a photolabile molecule; and (b) incorporating the amino acid into a peptide during synthesis, wherein incorporation of the amino acid into the peptide produces a photosensitive peptide. Also disclosed is a method of introducing a photosensitive cleavage site into a synthetic peptide, including synthesizing a synthetic peptide having at least one photolabile amino acid, wherein the photolabile amino acid is positioned within the synthetic peptide so that upon irradiation the synthetic peptide is cleaved.