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Stamogiannos A, Papakyriakou A, Mauvais FX, et al. Screening Identifies Thimerosal as a Selective Inhibitor of Endoplasmic Reticulum Aminopeptidase 1. ACS Med Chem Lett. 2016;7(7):681-5doi: 10.1021/acsmedchemlett.6b00084.
Stamogiannos, A., Papakyriakou, A., Mauvais, F. X., van Endert, P., & Stratikos, E. (2016). Screening Identifies Thimerosal as a Selective Inhibitor of Endoplasmic Reticulum Aminopeptidase 1. ACS medicinal chemistry letters, 7(7), 681-5. https://doi.org/10.1021/acsmedchemlett.6b00084
Stamogiannos, Athanasios, et al. "Screening Identifies Thimerosal as a Selective Inhibitor of Endoplasmic Reticulum Aminopeptidase 1." ACS medicinal chemistry letters vol. 7,7 (2016): 681-5. doi: https://doi.org/10.1021/acsmedchemlett.6b00084
Stamogiannos A, Papakyriakou A, Mauvais FX, van Endert P, Stratikos E. Screening Identifies Thimerosal as a Selective Inhibitor of Endoplasmic Reticulum Aminopeptidase 1. ACS Med Chem Lett. 2016 May 31;7(7):681-5. doi: 10.1021/acsmedchemlett.6b00084. eCollection 2016 Jul 14. PMID: 27437077; PMCID: PMC4948014.
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ACS Med Chem Lett. 2016 May 31;7(7):681-5. doi: 10.1021/acsmedchemlett.6b00084. eCollection 2016 Jul 14.

Screening Identifies Thimerosal as a Selective Inhibitor of Endoplasmic Reticulum Aminopeptidase 1.

ACS medicinal chemistry letters

Athanasios Stamogiannos, Athanasios Papakyriakou, Francois-Xavier Mauvais, Peter van Endert, Efstratios Stratikos

Affiliations

  1. National Center for Scientific Research Demokritos , Agia Paraskevi GR-15310, Athens, Greece.
  2. Institut National de la Santé et de la Recherche Médicale, Unité1151; Université Paris Descartes, Sorbonne Paris Cité; Centre National de la Recherche Scientifique, Unité 8253 , 75015 Paris, France.

PMID: 27437077 PMCID: PMC4948014 DOI: 10.1021/acsmedchemlett.6b00084

Abstract

We employed virtual screening followed by in vitro evaluation to discover novel inhibitors of ER aminopeptidase 1, an important enzyme for the human adaptive immune response that has emerged as an attractive target for cancer immunotherapy and the control of autoimmunity. Screening hits included three structurally related compounds carrying the (E)-N'-((1H-indol-3-yl)methylene)-1H-pyrazole-5-carbohydrazide scaffold and (2-carboxylatophenyl)sulfanyl-ethylmercury as novel ERAP1 inhibitors. The latter, also known as thimerosal, a common component in vaccines, was found to inhibit ERAP1 in the submicromolar range and to present strong selectivity versus the homologous aminopeptidases ERAP2 and IRAP. Cell-based analysis indicated that thimerosal can effectively reduce ERAP1-dependent cross-presentation by dendritic cells in a dose-dependent manner.

Keywords: ERAP1; ERAP2; IRAP; aminopeptidase; antigenic peptide; docking; immune system; inhibitor

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