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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 Clinical and genetic landscape of treatment naive cervical cancer: Alterations in PIK3CA and in epigenetic modulators associated with sub-optimal outcome
Creator Scholl et al.
Author Suzy Scholl
Author Marina Popovic
Author Anne de la Rochefordiere
Author Elodie Girard
Author Sylvain Dureau
Author Aljosa Mandic
Author Katarina Koprivsek
Author Nina Samet
Author Marius Craina
Author Madalin Margan
Author Sanne Samuels
Author Henry Zijlmans
Author Gemma Kenter
Author Peter Hillemanns
Author Sorin Dema
Author Alis Dema
Author Goran Malenkovic
Author Branislav Djuran
Author Anne Floquet
Author Delphine Garbay
Author Frédéric Guyon
Author Pierre Emmanuel Colombo
Author Michel Fabbro
Author Christine Kerr
Author Charlotte Ngo
Author Fabrice Lecuru
Author Eleonor Rivin Del Campo
Author Charles Coutant
Author Frédéric Marchal
Author Nathalie Mesgouez-Nebout
Author Virginie Fourchotte
Author Jean Guillaume Feron
Author Philippe Morice
Author Eric Deutsch
Author Pauline Wimberger
Author Jean-Marc Classe
Author Noreen Gleeson
Author Heiko von der Leyen
Author Mathieu Minsat
Author Coraline Dubot
Author Pierre Gestraud
Author Attila Kereszt
Author Istvan Nagy
Author Balazs Balint
Author Els Berns
Author Ekaterina Jordanova
Author Nicolas de Saint-Jorre
Author Alexia Savignoni
Author Nicolas Servant
Author Philippe Hupe
Author Leanne de Koning
Author Pierre Fumoleau
Author Roman Rouzier
Author Maud Kamal
Abstract BACKGROUND: There is a lack of information as to which molecular processes, present at diagnosis, favor tumour escape from standard-of-care treatments in cervical cancer (CC). RAIDs consortium (www.raids-fp7.eu), conducted a prospectively monitored trial, [BioRAIDs (NCT02428842)] with the objectives to generate high quality samples and molecular assessments to stratify patient populations and to identify molecular patterns associated with poor outcome. METHODS: Between 2013 and 2017, RAIDs collected a prospective CC sample and clinical dataset involving 419 participant patients from 18 centers in seven EU countries. Next Generation Sequencing has so far been carried out on a total of 182 samples from 377 evaluable (48%) patients, allowing to define dominant genetic alterations. Reverse phase protein expression arrays (RPPA) was applied to group patients into clusters. Activation of key genetic pathways and protein expression signatures were tested for associations with outcome. FINDINGS: At a median follow up (FU) of 22?months, progression-free survival rates of this FIGO stage IB1-IV population, treated predominantly (87%) by chemoradiation, were65?4% [CI95%: 60?2-71.1]. Dominant oncogenic alterations were seen in PIK3CA (40%), while dominant suppressor gene alterations were seen in KMT2D (15%) and KMT2C (16%). Cumulative frequency of loss-of-function (LOF) mutations in any epigenetic modulator gene alteration was 47% and it was associated with PIK3CA gene alterations in 32%. Patients with tumours harboring alterations in both pathways had a significantly poorer PFS. A new finding was the detection of a high frequency of gains of TLR4 gene amplifications (10%), as well as amplifications, mutations, and non-frame-shift deletions of Androgen receptor (AR) gene in 7% of patients. Finally, RPPA protein expression analysis defined three expression clusters. INTERPRETATION: Our data suggests that patient population may be stratified into four different treatment strategies based on molecular markers at the outset. FUND: European Union's Seventh Program grant agreement No 304810.
Publication EBioMedicine
Volume 43
Pages 253-260
Date May 2019
Journal Abbr EBioMedicine
Language eng
DOI 10.1016/j.ebiom.2019.03.069
ISSN 2352-3964
Short Title Clinical and genetic landscape of treatment naive cervical cancer
Library Catalog PubMed
Extra 00000 PMID: 30952619 PMCID: PMC6562019
Tags Adult, Aged, Biomarkers, Tumor, Bioraids study, Cervical cancers, Class I Phosphatidylinositol 3-Kinases, clinic, Combined Modality Therapy, Computational Biology, Epigenesis, Genetic, Epigenetics pathways, Female, Gene Expression Profiling, Humans, Middle Aged, Neoplasm Metastasis, Neoplasm Staging, Patient stratification, PI3KCA, Prognosis, Prospective database, Reverse phase protein array, Treatment Outcome, Uterine Cervical Neoplasms, Whole exome sequencing
Date Added 2020/01/21 - 10:50:06
Date Modified 2020/01/21 - 11:20:25
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