Skip to main content

Or 34,00 After 66% tax deduction

I make a monthly donation I make an IFI donation
Bâtiment Institut du cerveau

BRIGHT

Heterogeneity, immunity and brain tumour therapy

Retour à la recherche
Photo de Franck BIELLE
BIELLE Franck

Project Sponsor, MD, PhD, MCU-PH, Team Leader, PI, Sorbonne Université, AP-HP

Photo de Mehdi TOUAT
TOUAT Mehdi

Project Sponsor, MD, PhD, MCU-PH, Team Leader, PI, Sorbonne Université, AP-HP

Team presentation

The laboratory aims to understand genetic alterations and changes in the tumor microenvironment during the evolution of brain tumors, and to determine how these alterations influence tumor behavior and their response to treatments, with the goal of improving therapeutic strategies. To achieve this, the laboratory uses patient samples obtained from surgery as well as numerous preclinical in vitro and in vivo models.

Our research

Our research focuses on three main areas

  • Improving the understanding of tumor heterogeneity in order to better predict patient prognosis and treatment response
  • Identifying and targeting the mechanisms underlying treatment resistance in brain tumors
  • Modulating interactions between tumor cells and the microenvironment to optimize new treatments, particularly immunotherapy
Some of the team’s flagship projects

Some of the team’s flagship projects

  • Integrated study of brain tumors heterogeneity (glioblastomas, IDH-mutant gliomas, primary central nervous system lymphomas, and rare tumors), combining multi-omics analyses (genetic, epigenetic, transcriptomic, histomic), exploration of interactions with the tumor microenvironment, and development of innovative tools in advanced imaging and artificial intelligence (Leaders: Agusti Alentorn, Franck Bielle, Francesca Branzoli, Khê Hoang-Xuan)
  • Characterization of resistance mechanisms to chemotherapy and immunotherapy and development of new therapeutic strategies, particularly in glioblastoma, aimed at improving patient prognosis, using models such as patient-derived cell lines, xenografts, tumoroids, and organoids (Leaders: Ahmed Idbaih, Isabelle Le Roux, Mehdi Touat, Maïté Verreault)
  • Study of interactions between tumor cells and their microenvironment, particularly myeloid and lymphoid cells and the vascular network, in order to identify predictive biomarkers of response and characterize therapeutic synergies (Leaders: Luis J. Castro-Vega, Ahmed Idbaih, Isabelle Le Roux, Michel Mallat, Marc Sanson, Mehdi Touat)
Main publications
Main publications

2025

  • Kacimi S et al. Survival Outcomes Associated With First-Line Procarbazine, CCNU, and Vincristine or Temozolomide in Combination With Radiotherapy in IDH-Mutant 1p/19q-Codeleted Grade 3 Oligodendroglioma. J Clin Oncol . 2025 Jan 20;43(3):329-338.
  • Nichelli L et al. Incorporation of Edited MRS into Clinical Practice May Improve Care of Patients with IDH-Mutant Glioma. AJNR Am J Neuroradiol. 2025 Jan 8;46(1):113-120. doi: 10.3174/ajnr.A8413.
  • Hernández-Verdin I et al. Gut microbiome modulates the outcome in primary central nervous system lymphoma patients undergoing chemotherapy: An ancillary study from the BLOCAGE trial. Neuro Oncol. 2025 Sep 17;27(8):2090-2104.
  • Morfouace M, Bielle Fet al. Molecular analysis of adolescent and young adult high grade gliomas in the SPECTA-AYA study: Poorly characterised tumours with frequent germline alterations. Eur J Cancer. 2025 Jun 18;223:115493. 

2024

  • Carpentier A et al. Repeated blood-brain barrier opening with a nine-emitter implantable ultrasound device in combination with carboplatin in recurrent glioblastoma: a phase I/II clinical trial. Nat Commun. 2024 Feb 23;15(1):1650.

2023

  • Di Stefano AL et al. In Vivo 2-Hydroxyglutarate Monitoring With Edited MR Spectroscopy for the Follow-up of IDH-Mutant Diffuse Gliomas: The IDASPE Prospective Study. Neurology. 2023 Jan 3;100(1):e94-e106. doi: 10.1212/
  • Salam R et al. Cellular senescence in malignant cells promotes tumor progression in mouse and patient Glioblastoma. Nat Commun. 2023 Jan 27;14(1):441. doi: 10.1038/s41467-023-36124-9.
  • Hernández-Verdin I et al. Molecular and clinical diversity in primary central nervous system lymphoma. Ann Oncol. 2023 Feb;34(2):186-199.
  • Lerond J, Mathon B, et al., Navarro V, Bielle F. Hippocampal and neocortical BRAF mutant non-expansive lesions in focal epilepsies. Neuropathol Appl Neurobiol. 2023 Oct;49(5):e12937.

2022

  • Verreault M et al. Identification of growth hormone receptor as a relevant target for precision medicine in low-EGFR expressing glioblastoma. Clin Transl Med. 2022 Jul;12(7):e939.

2020

  • Touat M et al. Mechanisms and therapeutic implications of hypermutation in gliomas. Nature. 2020 Apr;580(7804):517-523

2018

Team members

Photo de Franck BIELLE
BIELLE Franck

Project Sponsor, MD, PhD, MCU-PH, Team Leader, PI, Sorbonne Université, AP-HP

Photo de Mehdi TOUAT
TOUAT Mehdi

Project Sponsor, MD, PhD, MCU-PH, Team Leader, PI, Sorbonne Université, AP-HP

Photo de AGUSTI ALENTORN
ALENTORN Agusti

Clinician, MD, PhD, PH, PI, AP-HP

Photo de Francesca BRANZOLI
BRANZOLI Francesca

Research Officer (CRCN), PI, INSERM

Photo de Khe HOANG-XUAN
HOANG-XUAN Khe

Clinician, MD, PhD, PU-PH, PI, Sorbonne Université, AP-HP

Photo d'Ahmed IDBAIH
IDBAIH Ahmed

Project Sponsor, MD, PhD, MCU-PH, PI, Sorbonne Université, AP-HP

Photo d'Isabelle LEROUX
LEROUX Isabelle

Project Sponsor, PhD, CRCN, PI, INSERM

Photo de Michel MALLAT
MALLAT Michel

Director of Research, PI, INSERM

MATHON Bertrand
MATHON Bertrand

Clinician (MD, PhD), PI, Sorbonne Université, AP-HP

Marc SANSON
SANSON Marc

MD, PhD, Pr (PU-PH), PI, Sorbonne Université, AP-HP

News from the team

1.	Mehdi Touat, François Henrot, Serge Weinberg, Natacha Polony, Gérard Saillant, Stéphanie Debette, Rebecca-Lamarche-Vadel, Oliver Beer
Art-Science Breakfast 2025: The Brain Challenge Campaign Unveiled
With the support of the Art Basel Paris Contemporary Art Fair, the 14th edition of the Art-Science Breakfast was held on 22 October 2025 at the Grand Café du Grand Palais (Paris).
10.28.2025 Support
image
GAB1, a good biomarker for Hedgehog-activated anterior skull base meningiomas
A study conducted by Julien Boetto and Franck Bielle (Sorbonne University. AP-HP) of the " Genetics and Development of Nervous System Tumours" team at the Paris Brain Institute highlights the potential of GAB1 as a new biomarker for Hedgehog...
06.14.2021 Research, science & health
Visuel d'un organoide
Cellular senescence plays a significant role in cerebral tumors
Glioblastomas are the most common malignant tumors of the adult brain. They resist conventional treatment, including surgery, followed by radiation therapy and chemotherapy. Despite thisarmamentarium, glioblastomas inexorably recur. In a new study...
02.24.2023 Research, science & health
Gliome malin
Molecular characterization of primary lymphomas of the central nervous system towards a better prediction of evolution and personalized treatments
Researchers and clinicians from the research team co-directed by Prof. Marc SANSON and Emmanuelle HUILLARD at the Paris Brain Institute have just identified four molecular profiles of primary central nervous system lymphoma (PCNSL) that could predict...
12.07.2022 Research, science & health
See all our news