Actualités
Séminaires

Jeudi 07 Juillet 2022 de 15h30 à 16h30
séminaire IRCM


Jean-Emmanuel SARRY

CRCT, Toulouse

"Metabolic adaptations driving drug resistance in cancer: from basic study to clinical perspectives"  

Contact IRCM : Laurent LeCam


Vendredi 13 Mai 2022 de 14h00 à 15h00
SEMINAIRE IRCM


Luis Castro Vega

ICM, Hopital Pitié Salpétrière, Paris

"Oncometabolite signaling in the tumor microenvironment: The case of IDH-mutant gliomas"

contact: nathalie.bonnefoy@inserm.fr


Vendredi 10 Juin 2022 de 14h00 à 15h00
SÉMINAIRE IRCM


Stéphane Vincent

IGBMC, Illkirch, France

Functionality and diversity of the basal transcription machinery during development and differentiation

Contact: Priyanka.sharma@inserm.fr

The seminar in brief:

Transcription mediated by RNA polymerase II (RNA Pol II) is responsible for the expression of protein-coding genes and many non-coding RNAs in all cells of the body. Disruption of RNA Pol II activity is thus associated with many diseases. Understanding the mechanisms that control transcription is therefore of fundamental but also medical interest. Our laboratory focuses on the protein complexes that are involved in RNA Pol II transcription initiation, the first step of the transcriptional cycle, in particular on the general transcription factor (GTF) TFIID. The TFIID complex is the first GTF to interact with DNA by recognizing the promoter and allows the nucleation of the pre-initiation transcription complex (PIC). TFIID is composed of TBP (TATA-binding protein) and 13 TAFs (TBP-associated factors) in higher eukaryotes.

This somewhat simplistic view has been challenged in metazoans, because the composition of TFIID is in fact more complex. Indeed, i) some subunits are not necessarily required in certain cellular contexts, ii) some TAFs have paralogs that are associated with developmental programs and that can be integrated into TFIID and iii) there are TBP-like proteins associated with gamete differentiation but it is not clear whether these TBP-like proteins are capable of integrating a TFIID complex. All these data indicate that there is potential diversity in the mechanisms of promoter recognition and transcription initiation and that this step can be considered as a new level of regulation of gene expression. 

Our aim is to analyze the functional diversity of the protein complexes that recognize the promoters and initiate the formation of the PIC. We have identified a unique TFIID-independent basal transcription machinery during oocyte growth and analyzed the effects of deletion of genes encoding certain TAFs on TFIID composition and Pol II transcription during murine development and in embryonic stem cells.


Vendredi 15 Avril 2022 de 11h00 à 12h00
SÉMINAIRE IRCM


Lisa Brunet

INSERM U1239 (NorDic) IRIB, Université de Rouen-Normandie, Rouen

 "A new therapeutic strategy to prolong lung cancer response to EGFR inhibitors"

Contact: antonio.maraver@inserm.fr


Vendredi 20 Mai 2022 de 14h00 à 15h00
SEMINAIRE IRCM


Virginie Georget

MRI, BioCampus Montpellier, UAR 3426 CNRS - US 09 INSERM - UM

“Montpellier Ressources Imagerie: our offer, what's new, future prospects“
“Plateforme MRI, nos offres, les nouveautés et notre évolution“

contact: alexandre.djiane@inserm.fr


Mercredi 30 Mars 2022 de 14h00 à 15h00
SEMINAIRE IRCM


Patrick Jouandin

Dept of Genetics, Blavatnik Institute, Harvard Medical School, Boston, Ms., USA

Regulation of Growth during nutrient limitation

contact: alexandre.djiane@inserm.fr

Séminaire en distanciel, un lien Zoom sera diffusé la semaine précédente 


Vendredi 01 Juillet 2022 de 14h00 à 15h00
SEMINAIRE IRCM


Julien Marie

CRCL, INSERM U1052/CNRS UMR 5286, Centre Léon Bérard, Université Lyon 1

"Cooperation between Cancer cells and Tregs  to create a potent Immunosuppressive  micro-environment in tumors."

contact: nathalie.bonnefoy@inserm.fr


Vendredi 18 Février 2022 de 11h00 à 12h00
Séminaire IRCM


Marie-Caroline Dieu-Nosjean

Immune Microenvironment and Immunotherapy Lab, UMR1135 Inserm, Hopital Pitié-Salpêtriere, Paris.

"Tertiary lymphoid structures: an anti-tumor school for adaptive immune cells and an antibody factory to fight cancer "

contact: nathalie.bonnefoy@inserm.fr



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