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Baudou E, Peran P, Tensaouti F, Arribarat G, Pariente J, Courbieres N, Pollidoro L, Bertozzi AI, Gambart M, Sevely A, Roques M, Ducassou A, Danna J, Tallet J, Dufour C, Chaix Y, Laprie A. The long-term impact of irradiation on functional connectivity in brain circuits involved in memory processes after pediatric posterior fossa tumor. Radiother Oncol 2024; 191:110073. [PMID: 38145791 DOI: 10.1016/j.radonc.2023.110073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 10/26/2023] [Accepted: 12/20/2023] [Indexed: 12/27/2023]
Abstract
PURPOSE Memory is one of the main specific cognitive domains impaired with attention and processing speed after a pediatric brain tumor. This work explored the long-term impact of radiotherapy in children with posterior fossa tumor (PFT) on brain connectivity in neural circuits involved in memory using resting-state functional magnetic resonance imaging (rs-fMRI). METHODS A total of 20 irradiated and 15 non-irradiated PFT survivors, and 21 healthy controls, prospectively included in the IMPALA study (NCT04324450), performed memory tests assessing episodic, procedural, and working memories and were subjected to an rs-fMRI. We manually contoured main structures involved in memory to explore connectivity at rest in a seed-to-voxel analysis. The groups were compared and differences in connectivity were correlated with behavioral scores and irradiation doses. RESULTS The performance of all mnesic tasks was lower in PFT survivors with a greater alteration in working and episodic memory in irradiated patients. Irradiated survivors had atypical connectivities in all memory circuits compared to controls and in cortico-caudate and cortico-cerebellar circuits compared to non-irradiated survivors. Non-irradiated survivors had only atypical connectivities in the cortico-cerebellar circuits compared to controls. In irradiated survivors, atypical connectivities in cortico-hippocampal circuits were linked with episodic memory scores and dose of irradiation to the left hippocampus and in cortico-striatal circuits with procedural memory scores and dose of irradiation to the striatum. CONCLUSION The results of this study highlight that irradiation has a long-term impact on brain connectivity in brain circuits involved in memory after pediatric PFT with a specific radiation-dose effect in supratentorial structures.
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Affiliation(s)
- Eloïse Baudou
- Toulouse NeuroImaging Center (ToNIC), INSERM University of Toulouse Paul Sabatier, Toulouse, France; Pediatric Neurology Department, Children's Hospital, Toulouse University Hospital, Toulouse, France.
| | - Patrice Peran
- Toulouse NeuroImaging Center (ToNIC), INSERM University of Toulouse Paul Sabatier, Toulouse, France
| | - Fatima Tensaouti
- Toulouse NeuroImaging Center (ToNIC), INSERM University of Toulouse Paul Sabatier, Toulouse, France; Radiation Oncology Department, Institut Universitaire du Cancer de Toulouse-Oncopole, Toulouse, France
| | - Germain Arribarat
- Toulouse NeuroImaging Center (ToNIC), INSERM University of Toulouse Paul Sabatier, Toulouse, France
| | - Jérémie Pariente
- Toulouse NeuroImaging Center (ToNIC), INSERM University of Toulouse Paul Sabatier, Toulouse, France; Neurology Department, Toulouse University Hospital, Toulouse, France
| | - Nicolas Courbieres
- Toulouse NeuroImaging Center (ToNIC), INSERM University of Toulouse Paul Sabatier, Toulouse, France
| | - Lisa Pollidoro
- Toulouse NeuroImaging Center (ToNIC), INSERM University of Toulouse Paul Sabatier, Toulouse, France; Pediatric Neurology Department, Children's Hospital, Toulouse University Hospital, Toulouse, France
| | - Anne-Isabelle Bertozzi
- Pediatric Oncology Department, Children's Hospital, Toulouse University Hospital, Toulouse, France
| | - Marion Gambart
- Pediatric Oncology Department, Children's Hospital, Toulouse University Hospital, Toulouse, France
| | - Annick Sevely
- Radiology Department, Toulouse University Hospital, Toulouse, France
| | - Margaux Roques
- Toulouse NeuroImaging Center (ToNIC), INSERM University of Toulouse Paul Sabatier, Toulouse, France; Radiology Department, Toulouse University Hospital, Toulouse, France
| | - Anne Ducassou
- Radiation Oncology Department, Institut Universitaire du Cancer de Toulouse-Oncopole, Toulouse, France
| | - Jérémy Danna
- CLLE, Université de Toulouse, CNRS, Toulouse, France
| | - Jessica Tallet
- Toulouse NeuroImaging Center (ToNIC), INSERM University of Toulouse Paul Sabatier, Toulouse, France
| | - Christelle Dufour
- Department of Pediatric and Adolescent Oncology, Institut Gustave Roussy, University Paris-Saclay, Villejuif, France
| | - Yves Chaix
- Toulouse NeuroImaging Center (ToNIC), INSERM University of Toulouse Paul Sabatier, Toulouse, France; Pediatric Neurology Department, Children's Hospital, Toulouse University Hospital, Toulouse, France
| | - Anne Laprie
- Toulouse NeuroImaging Center (ToNIC), INSERM University of Toulouse Paul Sabatier, Toulouse, France; Radiation Oncology Department, Institut Universitaire du Cancer de Toulouse-Oncopole, Toulouse, France
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Liu C, Yang T, Cheng C, Huo J, Peng X, Zhang Y. Dauricine attenuates Oct4/sonic hedgehog co-activated stemness and induces reactive oxygen species-mediated mitochondrial apoptosis via AKT/β-catenin signaling in human neuroblastoma and glioblastoma stem-like cells. Phytother Res 2024; 38:131-146. [PMID: 37821355 DOI: 10.1002/ptr.8029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 09/02/2023] [Accepted: 09/22/2023] [Indexed: 10/13/2023]
Abstract
Neuroblastoma and glioblastoma are primary malignant tumors of the nervous system, with frequent relapse and limited clinical therapeutic drugs. The failure of their treatment is due to the tumor cells exhibiting cancer stem-like cells (CSLCs) properties. Octamer binding transcription factor 4 (Oct4) is involved in mediating CSLCs, our previous work found that Oct4-driven reprogramming of astrocytes into induced neural stem cells was potentiated with continuous sonic hedgehog (Shh) stimulation. In this study, we aimed to study the importance of Oct4 and Shh combination in the stemness properties induction of neuroblastoma and glioblastoma cells, and evaluate the anti-stemness effect of dauricine (DAU), a natural product of bis-benzylisoquinoline alkaloid. The effect of Oct4 and Shh co-activation on cancer stemness was evaluated by tumor spheres formation model and flow cytometry analysis. Then the effects of DAU on SH-SY5Y and T98-G cells were assessed by the MTT, colony formation, and tumor spheres formation model. DAU acts on Oct4 were verified using the Western blotting, MTT, and so on. Mechanistic studies were explored by siRNA transfection assay, Western blotting, and flow cytometry analysis. We identified that Shh effectively improved Oct4-mediated generation of stemness in SH-SY5Y and T98-G cells, and Oct4 and Shh co-activation promoted cell growth, the resistance of apoptosis. In addition, DAU, a natural product, was found to be able to attenuate Oct4/Shh co-activated stemness and induce cell cycle arrest and apoptosis via blocking AKT/β-catenin signaling in neuroblastoma and glioblastoma, which contributed to the neuroblastoma and glioblastoma cells growth inhibition by DAU. In summary, our results indicated that the treatment of DAU may be served as a potential therapeutic method in neuroblastoma and glioblastoma.
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Affiliation(s)
- Cuicui Liu
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, People's Republic of China
- Department of Science and Education, Hong Hui Hospital, Xi'an Jiaotong University, Xi'an, People's Republic of China
| | - Tianfeng Yang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, People's Republic of China
- State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an, People's Republic of China
| | - Cheng Cheng
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, People's Republic of China
- State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an, People's Republic of China
| | - Jian Huo
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, People's Republic of China
- State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an, People's Republic of China
| | - Xiuhong Peng
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, People's Republic of China
- State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an, People's Republic of China
| | - Yanmin Zhang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, People's Republic of China
- State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an, People's Republic of China
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Zhang C, Zheng J, Chen W, Yang W, Tan X, Fan X, Shen G, Qu L, Chen Z, Shi C. Mitochondrial-targeting fluorescent small molecule IR-780 alleviates radiation-induced brain injury. Brain Res 2023; 1805:148285. [PMID: 36801209 DOI: 10.1016/j.brainres.2023.148285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 01/12/2023] [Accepted: 02/13/2023] [Indexed: 02/17/2023]
Abstract
Radiation-induced brain injury (RIBI) is a common complication of radiation therapy for brain tumors. Vascular damage is one of the key factors closely related to the severity of the RIBI. However, effective vascular target treatment strategies are lacking. Previously, we have identified a fluorescent small molecule dye, IR-780, which shows the properties of injury tissue targeting and provided protection against various injuries by modulating oxidative stress. This study aims to validate the therapeutic effect of IR-780 on RIBI. The effectiveness of IR-780 against RIBI has been comprehensively evaluated through techniques such as behavior, immunofluorescence staining, quantitative real-time polymerase chain reaction, Evans Blue leakage experiments, electron microscopy, and flow cytometry. Results show that IR-780 improves cognitive dysfunction, reduces neuroinflammation, restores the expression of tight junction proteins in the blood-brain barrier (BBB), and promotes the recovery of BBB function after whole brain irradiation. IR-780 also accumulates in injured cerebral microvascular endothelial cells, and its subcellular location is in the mitochondria. More importantly, IR-780 can reduce the levels of cellular reactive oxygen species and apoptosis. Moreover, IR-780 has no significant toxic side effects. IR-780 alleviates RIBI by protecting vascular endothelial cells from oxidative stress, reducing neuroinflammation, and restoring BBB function, suggesting IR-780 as a promising treatment candidate for RIBI therapy.
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Affiliation(s)
- Can Zhang
- Institute of Rocket Force Medicine, State Key Laboratory of Trauma, Burns and Combined Injury, Army Medical University, 400038 Chongqing, China
| | - Jiancheng Zheng
- Institute of Rocket Force Medicine, State Key Laboratory of Trauma, Burns and Combined Injury, Army Medical University, 400038 Chongqing, China
| | - Wanchao Chen
- Institute of Rocket Force Medicine, State Key Laboratory of Trauma, Burns and Combined Injury, Army Medical University, 400038 Chongqing, China
| | - Wei Yang
- Institute of Rocket Force Medicine, State Key Laboratory of Trauma, Burns and Combined Injury, Army Medical University, 400038 Chongqing, China; Department of Oncology, The Affiliated Hospital of Southwest Medical University, 646000 Luzhou, China
| | - Xu Tan
- Institute of Rocket Force Medicine, State Key Laboratory of Trauma, Burns and Combined Injury, Army Medical University, 400038 Chongqing, China
| | - Xiaotang Fan
- Department of Military Cognitive Psychology, School of Psychology, Army Medical University, 400038 Chongqing, China
| | - Gufang Shen
- Institute of Rocket Force Medicine, State Key Laboratory of Trauma, Burns and Combined Injury, Army Medical University, 400038 Chongqing, China
| | - Langfan Qu
- Institute of Rocket Force Medicine, State Key Laboratory of Trauma, Burns and Combined Injury, Army Medical University, 400038 Chongqing, China
| | - Zelin Chen
- Institute of Rocket Force Medicine, State Key Laboratory of Trauma, Burns and Combined Injury, Army Medical University, 400038 Chongqing, China.
| | - Chunmeng Shi
- Institute of Rocket Force Medicine, State Key Laboratory of Trauma, Burns and Combined Injury, Army Medical University, 400038 Chongqing, China.
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