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Open Access 17-04-2024 | Cytokines | Research

Rebound growth of BRAF mutant pediatric glioma cells after MAPKi withdrawal is associated with MAPK reactivation and secretion of microglia-recruiting cytokines

Authors: Daniela Kocher, Lei Cao, Romain Guiho, Melanie Langhammer, Yun-Lu Lai, Pauline Becker, Hiba Hamdi, Dennis Friedel, Florian Selt, David Vonhören, Julia Zaman, Gintvile Valinciute, Sonja Herter, Daniel Picard, Johanna Rettenmeier, Kendra K. Maass, Kristian W. Pajtler, Marc Remke, Andreas von Deimling, Stefan Pusch, Stefan M. Pfister, Ina Oehme, David T.W. Jones, Sebastian Halbach, Tilman Brummer, Juan Pedro Martinez-Barbera, Olaf Witt, Till Milde, Romain Sigaud

Published in: Journal of Neuro-Oncology

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Abstract

Introduction

Patients with pediatric low-grade gliomas (pLGGs), the most common primary brain tumors in children, can often benefit from MAPK inhibitor (MAPKi) treatment. However, rapid tumor regrowth, also referred to as rebound growth, may occur once treatment is stopped, constituting a significant clinical challenge.

Methods

Four patient-derived pediatric glioma models were investigated to model rebound growth in vitro based on viable cell counts in response to MAPKi treatment and withdrawal. A multi-omics dataset (RNA sequencing and LC-MS/MS based phospho-/proteomics) was generated to investigate possible rebound-driving mechanisms. Following in vitro validation, putative rebound-driving mechanisms were validated in vivo using the BT-40 orthotopic xenograft model.

Results

Of the tested models, only a BRAFV600E-driven model (BT-40, with additional CDKN2A/Bdel) showed rebound growth upon MAPKi withdrawal. Using this model, we identified a rapid reactivation of the MAPK pathway upon MAPKi withdrawal in vitro, also confirmed in vivo. Furthermore, transient overactivation of key MAPK molecules at transcriptional (e.g. FOS) and phosphorylation (e.g. pMEK) levels, was observed in vitro. Additionally, we detected increased expression and secretion of cytokines (CCL2, CX3CL1, CXCL10 and CCL7) upon MAPKi treatment, maintained during early withdrawal. While increased cytokine expression did not have tumor cell intrinsic effects, presence of these cytokines in conditioned media led to increased attraction of microglia cells in vitro.

Conclusion

Taken together, these data indicate rapid MAPK reactivation upon MAPKi withdrawal as a tumor cell intrinsic rebound-driving mechanism. Furthermore, increased secretion of microglia-recruiting cytokines may play a role in treatment response and rebound growth upon withdrawal, warranting further evaluation.
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Literature
27.
go back to reference Ahuja D, Sáenz-Robles MT, Pipas JM (2005) SV40 large T antigen targets multiple cellular pathways to elicit cellular transformation. Oncogene 24:7729–7745CrossRefPubMed Ahuja D, Sáenz-Robles MT, Pipas JM (2005) SV40 large T antigen targets multiple cellular pathways to elicit cellular transformation. Oncogene 24:7729–7745CrossRefPubMed
29.
go back to reference Soto-Gamez A, Quax WJ, Demaria M (2019) Regulation of Survival Networks in senescent cells: from mechanisms to interventions. J Mol Biol 431:2629–2643CrossRefPubMed Soto-Gamez A, Quax WJ, Demaria M (2019) Regulation of Survival Networks in senescent cells: from mechanisms to interventions. J Mol Biol 431:2629–2643CrossRefPubMed
46.
go back to reference Xu M, Wang Y, Xia R et al (2021) Role of the CCL2-CCR2 signalling axis in cancer: mechanisms and therapeutic targeting. Cell Prolif. 54 Xu M, Wang Y, Xia R et al (2021) Role of the CCL2-CCR2 signalling axis in cancer: mechanisms and therapeutic targeting. Cell Prolif. 54
47.
go back to reference Conroy MJ, Lysaght J (2020) CX3CL1 Signaling in the Tumor Microenvironment. Advances in Experimental Medicine and Biology. Springer, pp 1–12 Conroy MJ, Lysaght J (2020) CX3CL1 Signaling in the Tumor Microenvironment. Advances in Experimental Medicine and Biology. Springer, pp 1–12
48.
go back to reference Clarner T, Janssen K, Nellessen L et al (2015) CXCL10 triggers early microglial activation in the Cuprizone Model. 194:3400–3413 Clarner T, Janssen K, Nellessen L et al (2015) CXCL10 triggers early microglial activation in the Cuprizone Model. 194:3400–3413
Metadata
Title
Rebound growth of BRAF mutant pediatric glioma cells after MAPKi withdrawal is associated with MAPK reactivation and secretion of microglia-recruiting cytokines
Authors
Daniela Kocher
Lei Cao
Romain Guiho
Melanie Langhammer
Yun-Lu Lai
Pauline Becker
Hiba Hamdi
Dennis Friedel
Florian Selt
David Vonhören
Julia Zaman
Gintvile Valinciute
Sonja Herter
Daniel Picard
Johanna Rettenmeier
Kendra K. Maass
Kristian W. Pajtler
Marc Remke
Andreas von Deimling
Stefan Pusch
Stefan M. Pfister
Ina Oehme
David T.W. Jones
Sebastian Halbach
Tilman Brummer
Juan Pedro Martinez-Barbera
Olaf Witt
Till Milde
Romain Sigaud
Publication date
17-04-2024
Publisher
Springer US
Published in
Journal of Neuro-Oncology
Print ISSN: 0167-594X
Electronic ISSN: 1573-7373
DOI
https://doi.org/10.1007/s11060-024-04672-9