title: Homogeneous reporter system enables quantitative functional assessment of multiple transcription factors.
abstract: We developed a high-content reporter system that allows quantitative assessment of activities of multiple transcription factors (TFs) in a eukaryotic cell. The system comprises a library of reporter constructs that are evaluated according to their transcription rates. All reporters produce essentially identical messages that are subjected to 'processing', which generates a spectrum of distinguishable fragments that are analyzed quantitatively. The homogeneity of the reporter library afforded inherently uniform detection conditions for all reporters and provided repeatability, accuracy and robustness of assessment. We showed that this technology can be used to identify pathways transmitting cell responses to inducers, and that the profile of TF activities generated using this system represents a stable and sustained cell signature that clearly distinguishes different cell types and pathological conditions. This technology provides a framework for functional characterization of signal transduction networks through profiling activities of multiple TFs.
authors.affiliation: Attagene Inc., P.O. Box 12054, Research Triangle Park, North Carolina 27709, USA.
authors.forename: Sergei
authors.initials: S
authors.lastname: Romanov
authors.forename: Alexander
authors.initials: A
authors.lastname: Medvedev
authors.forename: Maria
authors.initials: M
authors.lastname: Gambarian
authors.forename: Natalia
authors.initials: N
authors.lastname: Poltoratskaya
authors.forename: Matt
authors.initials: M
authors.lastname: Moeser
authors.forename: Liubov
authors.initials: L
authors.lastname: Medvedeva
authors.forename: Mikhail
authors.initials: M
authors.lastname: Gambarian
authors.forename: Luda
authors.initials: L
authors.lastname: Diatchenko
authors.forename: Sergei
authors.initials: S
authors.lastname: Makarov
mesh_terms: D000818:Animals; D002227:Carbazoles / Q000494:pharmacology; D045744:Cell Line, Tumor; D005576:Colforsin / Q000494:pharmacology; D020869:Gene Expression Profiling / Q000379:methods*; D015723:Gene Library; D017930:Genes, Reporter / Q000502:physiology*; D006801:Humans; D007211:Indoles / Q000494:pharmacology; D020411:Oligonucleotide Array Sequence Analysis / Q000379:methods; D016133:Polymerase Chain Reaction; D051381:Rats; D018336:Receptors, Aryl Hydrocarbon / Q000187:drug effects; D015203:Reproducibility of Results; D014157:Transcription Factors / Q000235:genetics*; D014162:Transfection / Q000379:methods; D016212:Transforming Growth Factor beta / Q000494:pharmacology
chemical_list: C111855:6-formylindolo(3,2-b)carbazole; D002227:Carbazoles; D007211:Indoles; D018336:Receptors, Aryl Hydrocarbon; D014157:Transcription Factors; D016212:Transforming Growth Factor beta; D005576:Colforsin