Unknown,Transcriptomics,Genomics,Proteomics

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Tryptamine Serves As a Proligand of the AhR Transcriptional Pathway, and the Activation Is Dependent of Monoamine Oxidases


ABSTRACT: In this study we show that physiological concentrations of tryptamine (TA) lead to induction of cytochrome P4501A1 transcription through an AhR-dependent mechanism. In addition, we show that activation of the AhR by TA requires a functional monoamino oxidase system, suggesting that TA acts as an AhR proligand possibly by converting to a high-affinity AhR ligand. RNA seq was performed from Hepa cells treated with FICZ or TA by SciLifelabs.

ORGANISM(S): Mus musculus

SUBMITTER: Bernward Klocke 

PROVIDER: E-GEOD-39812 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Tryptamine serves as a proligand of the AhR transcriptional pathway whose activation is dependent of monoamine oxidases.

Vikström Bergander Linda L   Cai Wen W   Klocke Bernward B   Seifert Martin M   Pongratz Ingemar I  

Molecular endocrinology (Baltimore, Md.) 20120803 9


The function of the aryl hydrocarbon receptor (AhR) in mediating the biological effect to environmental pollutants is well established. However, accumulated evidence indicates a wide range of physiological and pathological functions mediated by the AhR, suggesting the existence of endogenous AhR ligand(s). The nature of an AhR ligand remain elusive; however, it is known that the AhR is activated by several compounds, such as 2,3,7,8-tetrachlorodibenzo-p-dioxin or the tryptophan photoproduct 6-fo  ...[more]

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