1
|
Berger M, Castille E, Gau A, Rivière S, Vanessa S, Taieb G, Sultan A, Guilpain P, Maria A. Diagnostiquer un lupus, ce n’est pas une mince affaire ! Rev Med Interne 2021. [DOI: 10.1016/j.revmed.2021.03.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
2
|
Meliani K, Castille E, Rivière B, Perrochia H, Le Quintrec-Donnette M, Jeantet G, Gau A, Partouche L, Rivière S, Maria A, Guilpain P. Atteinte hépatique d’une vascularite cryoglobulinémique compliquant un lupus masculin associé à un Sjögren secondaire. Rev Med Interne 2021. [DOI: 10.1016/j.revmed.2021.03.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
3
|
Laffont-Lozes P, Baaziz H, Litovski J, Berger M, Castille E, Hillaire-Buys D, Gau A, Maria A, Guilpain P, Rivière S. Syndrome dépressif induit par l’Anakinra : nouveau cas rapporté. Rev Med Interne 2020. [DOI: 10.1016/j.revmed.2020.10.273] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
4
|
Zhou YH, Chen Y, Hu Y, Yu L, Tran K, Giedzinski E, Ru N, Gau A, Pan F, Qiao J, Atkin N, Ly KC, Lee N, Siegel ER, Linskey ME, Wang P, Limoli C. The role of EGFR double minutes in modulating the response of malignant gliomas to radiotherapy. Oncotarget 2017; 8:80853-80868. [PMID: 29113349 PMCID: PMC5655244 DOI: 10.18632/oncotarget.20714] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Accepted: 08/04/2017] [Indexed: 01/05/2023] Open
Abstract
EGFR amplification in cells having double minute chromosomes (DM) is commonly found in glioblastoma multiforme (GBM); however, how much it contributes to the current failure to treat GBM successfully is unknown. We studied two syngeneic primary cultures derived from a GBM with and without cells carrying DM, for their differential molecular and metabolic profiles, in vivo growth patterns, and responses to irradiation (IR). Each cell line has a distinct molecular profile consistent with an invasive “go” (with DM) or angiogenic “grow” phenotype (without DM) demonstrated in vitro and in intracranial xenograft models. Cells with DM were relatively radio-resistant and used higher glycolytic respiration and lower oxidative phosphorylation in comparison to cells without them. The DM-containing cell was able to restore tumor heterogeneity by mis-segregation of the DM-chromosomes, giving rise to cell subpopulations without them. As a response to IR, DM-containing cells switched their respiration from glycolic metabolism to oxidative phosphorylation and shifted molecular profiles towards that of cells without DM. Irradiated cells with DM showed the capacity to alter their extracellular microenvironment to not only promote invasiveness of the surrounding cells, regardless of DM status, but also to create a pro-angiogenic tumor microenvironment. IR of cells without DM was found primarily to increase extracellular MMP2 activity. Overall, our data suggest that the DM-containing cells of GBM are responsible for tumor recurrence due to their high invasiveness and radio-resistance and the mis-segregation of their DM chromosomes, to give rise to fast-growing cells lacking DM chromosomes.
Collapse
Affiliation(s)
- Yi-Hong Zhou
- UC Irvine Brain Tumor Laboratory and Department of Surgery, University of California Irvine, Irvine, CA, USA
| | - Yumay Chen
- UC Irvine Diabetes Center and Department of Medicine, University of California Irvine, Irvine, CA, USA
| | - Yuanjie Hu
- UC Irvine Brain Tumor Laboratory and Department of Surgery, University of California Irvine, Irvine, CA, USA
| | - Liping Yu
- Department of Radiation Oncology, University of California Irvine, Irvine, CA, USA
| | - Katherine Tran
- Department of Radiation Oncology, University of California Irvine, Irvine, CA, USA
| | - Erich Giedzinski
- Department of Radiation Oncology, University of California Irvine, Irvine, CA, USA
| | - Ning Ru
- UC Irvine Brain Tumor Laboratory and Department of Surgery, University of California Irvine, Irvine, CA, USA
| | - Alex Gau
- UC Irvine Brain Tumor Laboratory and Department of Surgery, University of California Irvine, Irvine, CA, USA
| | - Francine Pan
- UC Irvine Brain Tumor Laboratory and Department of Surgery, University of California Irvine, Irvine, CA, USA
| | - Jiao Qiao
- UC Irvine Brain Tumor Laboratory and Department of Surgery, University of California Irvine, Irvine, CA, USA
| | - Naomi Atkin
- UC Irvine Brain Tumor Laboratory and Department of Surgery, University of California Irvine, Irvine, CA, USA
| | - Khang Chi Ly
- UC Irvine Brain Tumor Laboratory and Department of Surgery, University of California Irvine, Irvine, CA, USA
| | - Nathan Lee
- UC Irvine Brain Tumor Laboratory and Department of Surgery, University of California Irvine, Irvine, CA, USA
| | - Eric R Siegel
- Departments of Biostatistics, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Mark E Linskey
- UC Irvine Brain Tumor Laboratory and Department of Surgery, University of California Irvine, Irvine, CA, USA
| | - Ping Wang
- UC Irvine Diabetes Center and Department of Medicine, University of California Irvine, Irvine, CA, USA
| | - Charles Limoli
- Department of Radiation Oncology, University of California Irvine, Irvine, CA, USA
| |
Collapse
|