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Epitranscriptomics & Cancer Adaptation : A.David

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Our research work focuses on the contribution of post-transcriptional mechanisms on cancer cell adaptation, in particular RNA epigenetic & translational control.

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Group name EquipeCTCS
Item Type Journal Article
Title Cerpegin-derived furo[3,4-c]pyridine-3,4(1H,5H)-diones enhance cellular response to interferons by de novo pyrimidine biosynthesis inhibition
Creator Hayek et al.
Author Simon Hayek
Author Nicolas Pietrancosta
Author Anna A. Hovhannisyan
Author Rodolphe Alves de Sousa
Author Nassima Bekaddour
Author Laura Ermellino
Author Enzo Tramontano
Author Stéphanie Arnould
Author Claude Sardet
Author Julien Dairou
Author Olivier Diaz
Author Vincent Lotteau
Author Sébastien Nisole
Author Gagik Melikyan
Author Jean-Philippe Herbeuval
Author Pierre-Olivier Vidalain
Abstract There is an increasing interest in the field of cancer therapy for small compounds targeting pyrimidine biosynthesis, and in particular dihydroorotate dehydrogenase (DHODH), the fourth enzyme of this metabolic pathway. Three available DHODH structures, featuring three different known inhibitors, were used as templates to screen in silico an original chemical library from Erevan University. This process led to the identification of P1788, a compound chemically related to the alkaloid cerpegin, as a new class of pyrimidine biosynthesis inhibitors. In line with previous reports, we investigated the effect of P1788 on the cellular innate immune response. Here we show that pyrimidine depletion by P1788 amplifies cellular response to both type-I and type II interferons, but also induces DNA damage as assessed by ?H2AX staining. Moreover, the addition of inhibitors of the DNA damage response led to the suppression of the P1788 stimulatory effects on the interferon pathway. This demonstrates that components of the DNA damage response are bridging the inhibition of pyrimidine biosynthesis by P1788 to the interferon signaling pathway. Altogether, these results provide new insights on the mode of action of novel pyrimidine biosynthesis inhibitors and their development for cancer therapies.
Publication European Journal of Medicinal Chemistry
Volume 186
Pages 111855
Date Jan 15, 2020
Journal Abbr Eur J Med Chem
Language eng
DOI 10.1016/j.ejmech.2019.111855
ISSN 1768-3254
Library Catalog PubMed
Extra 00000 PMID: 31740051
Tags Cerpegin, DHODH, DNA damage response, Interferon, original, Pyrimidine biosynthesis
Date Added 2020/01/21 - 10:47:46
Date Modified 2020/01/21 - 11:25:19
Notes and Attachments PubMed entry (Attachment)


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