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Salaud C, Alvarez-Arenas A, Geraldo F, Belmonte-Beitia J, Calvo GF, Gratas C, Pecqueur C, Garnier D, Pérez-Garcià V, Vallette FM, Oliver L. Mitochondria transfer from tumor-activated stromal cells (TASC) to primary Glioblastoma cells. Biochem Biophys Res Commun 2020; 533:139-147. [PMID: 32943183 DOI: 10.1016/j.bbrc.2020.08.101] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Accepted: 08/26/2020] [Indexed: 12/19/2022]
Abstract
The tumor microenvironment (TME) controls many aspects of cancer development but little is known about its effect in Glioblastoma (GBM), the main brain tumor in adults. Tumor-activated stromal cell (TASC) population, a component of TME in GBM, was induced in vitro by incubation of MSCs with culture media conditioned by primary cultures of GBM under 3D/organoid conditions. We observed mitochondrial transfer by Tunneling Nanotubes (TNT), extracellular vesicles (EV) and cannibalism from the TASC to GBM and analyzed its effect on both proliferation and survival. We created primary cultures of GBM or TASC in which we have eliminated mitochondrial DNA [Rho 0 (ρ0) cells]. We found that TASC, as described in other cancers, increased GBM proliferation and resistance to standard treatments (radiotherapy and chemotherapy). We analyzed the incorporation of purified mitochondria by ρ0 and ρ+ cells and a derived mathematical model taught us that ρ+ cells incorporate more rapidly pure mitochondria than ρ0 cells.
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Affiliation(s)
- Céline Salaud
- Université de Nantes, INSERM, CRCINA, Nantes, 44007, France; CHU de Nantes, Department of Neurosurgery, Nantes, 44007, France
| | - Arturo Alvarez-Arenas
- Department of Mathematics & MOLAB-Mathematical Oncology Laboratory, University of Castilla-La Mancha, 13071, Ciudad Real, Spain
| | - Fanny Geraldo
- Université de Nantes, INSERM, CRCINA, Nantes, 44007, France
| | - Juan Belmonte-Beitia
- Department of Mathematics & MOLAB-Mathematical Oncology Laboratory, University of Castilla-La Mancha, 13071, Ciudad Real, Spain
| | - Gabriel F Calvo
- Department of Mathematics & MOLAB-Mathematical Oncology Laboratory, University of Castilla-La Mancha, 13071, Ciudad Real, Spain
| | - Catherine Gratas
- Université de Nantes, INSERM, CRCINA, Nantes, 44007, France; CHU de Nantes, Department of Neurosurgery, Nantes, 44007, France
| | | | - Delphine Garnier
- Université de Nantes, INSERM, CRCINA, Nantes, 44007, France; ICO, Laboratoire de Biologie Du Cancer et Théranostics, St Herblain, 44805, France
| | - Victor Pérez-Garcià
- Department of Mathematics & MOLAB-Mathematical Oncology Laboratory, University of Castilla-La Mancha, 13071, Ciudad Real, Spain
| | - François M Vallette
- Université de Nantes, INSERM, CRCINA, Nantes, 44007, France; ICO, Laboratoire de Biologie Du Cancer et Théranostics, St Herblain, 44805, France.
| | - Lisa Oliver
- Université de Nantes, INSERM, CRCINA, Nantes, 44007, France; CHU de Nantes, Department of Neurosurgery, Nantes, 44007, France.
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