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Ius T, Somma T, Pasqualetti F, Berardinelli J, Vitulli F, Caccese M, Cella E, Cenciarelli C, Pozzoli G, Sconocchia G, Zeppieri M, Gerardo C, Caffo M, Lombardi G. Local therapy in glioma: An evolving paradigm from history to horizons (Review). Oncol Lett 2024; 28:440. [PMID: 39081966 PMCID: PMC11287108 DOI: 10.3892/ol.2024.14573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Accepted: 06/14/2024] [Indexed: 08/02/2024] Open
Abstract
Despite the implementation of multimodal treatments after surgery, glioblastoma (GBM) remains an incurable disease, posing a significant challenge in neuro-oncology. In this clinical setting, local therapy (LT), a developing paradigm, has received significant interest over time due to its potential to overcome the drawbacks of conventional therapy options for GBM. The present review aimed to trace the historical development, highlight contemporary advances and provide insights into the future horizons of LT in GBM management. In compliance with the Preferred Reporting Items for Systematic Review and Meta-Analysis Protocols criteria, a systematic review of the literature on the role of LT in GBM management was conducted. A total of 2,467 potentially relevant articles were found and, after removal of duplicates, 2,007 studies were screened by title and abstract (Cohen's κ coefficient=0.92). Overall, it emerged that 15, 10 and 6 clinical studies explored the clinical efficiency of intraoperative local treatment modalities, local radiotherapy and local immunotherapy, respectively. GBM recurrences occur within 2 cm of the radiation field in 80% of cases, emphasizing the significant influence of local factors on recurrence. This highlights the urgent requirement for LT strategies. In total, three primary reasons have thus led to the development of numerous LT solutions in recent decades: i) Intratumoral implants allow the blood-brain barrier to be bypassed, resulting in limited systemic toxicity; ii) LT facilitates bridging therapy between surgery and standard treatments; and iii) given the complexity of GBM, targeting multiple components of the tumor microenvironment through ligands specific to various elements could have a synergistic effect in treatments. Considering the spatial and temporal heterogeneity of GBM, the disease prognosis could be significantly improved by a combination of therapeutic strategies in the era of precision medicine.
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Affiliation(s)
- Tamara Ius
- Unit of Neurosurgery, Head-Neck and Neurosciences Department, University Hospital of Udine, I-33100 Udine, Italy
| | - Teresa Somma
- Division of Neurosurgery, Department of Neurosciences, Reproductive and Odontostomatological Sciences, Federico II University, I-80128 Naples, Italy
| | | | - Jacopo Berardinelli
- Division of Neurosurgery, Department of Neurosciences, Reproductive and Odontostomatological Sciences, Federico II University, I-80128 Naples, Italy
| | - Francesca Vitulli
- Division of Neurosurgery, Department of Neurosciences, Reproductive and Odontostomatological Sciences, Federico II University, I-80128 Naples, Italy
| | - Mario Caccese
- Medical Oncology 1, Veneto Institute of Oncology-IRCCS, I-35128 Padua, Italy
| | - Eugenia Cella
- Medical Oncology 1, Veneto Institute of Oncology-IRCCS, I-35128 Padua, Italy
- Medical Oncology 2, San Martino Hospital-IRCCS, I-16131 Genoa Italy
| | - Carlo Cenciarelli
- Institute of Translational Pharmacology, National Research Council, I-00133 Roma, Italy
| | - Giacomo Pozzoli
- Section of Pharmacology, Department of Healthcare Surveillance and Bioethics, Catholic University Medical School, Fondazione Policlinico Universitario A. Gemelli IRCCS, I-00168 Rome, Italy
| | - Giuseppe Sconocchia
- Institute of Translational Pharmacology, National Research Council, I-00133 Roma, Italy
| | - Marco Zeppieri
- Department of Ophthalmology, University Hospital of Udine, I-33100 Udine, Italy
| | - Caruso Gerardo
- Unit of Neurosurgery, Department of Biomedical and Dental Sciences and Morphofunctional Imaging, University Hospital of Messina, I-98125 Messina, Italy
| | - Maria Caffo
- Unit of Neurosurgery, Department of Biomedical and Dental Sciences and Morphofunctional Imaging, University Hospital of Messina, I-98125 Messina, Italy
| | - Giuseppe Lombardi
- Medical Oncology 1, Veneto Institute of Oncology-IRCCS, I-35128 Padua, Italy
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Xiang X, Ji Z, Jin J. Brachytherapy is an effective and safe salvage option for re-irradiation in recurrent glioblastoma (rGBM): A systematic review. Radiother Oncol 2024; 190:110012. [PMID: 37972737 DOI: 10.1016/j.radonc.2023.110012] [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: 09/03/2023] [Revised: 10/30/2023] [Accepted: 11/01/2023] [Indexed: 11/19/2023]
Abstract
PURPOSE To evaluate the clinical efficacy and toxicity of brachytherapy as a salvage therapy for patients with recurrent glioblastoma (rGBM). METHODS AND MATERIALS We searched the PubMed, Embase, and Cochrane libraries from its inception to June 2023, for eligible studies in which patients underwent brachytherapy for rGBM. Outcomes of interest were mOS, mPFS, OS, PFS, and adverse events (AEs). For individual clinical survival outcomes and common AEs, weighted-mean descriptive statistics were calculated as a summary measure using study sample size as the weight. The calculation formula is as follows: weighted-mean = Σwx/Σw (w is the sample size and x is the outcome). RESULTS This review included 29 studies with a total of 1202 rGBM patients, including 22 retrospective and 7 prospective studies. The results showed that from the time of brachytherapy, the mOS and mPFS were 6.8 to 24.4 months and 3.7 to 11.7 months. The OS of 6 months, 1 year, 18 months, 2 years, and 3 years after brachytherapy were 58.3 % to 85.2 % (weighted-mean 76.2 %), 26 % to 66 % (weighted-mean 41.9 %), 20 % to 37 % (weighted-mean 27.6 %), 11 % to 23 % (weighted-mean 14.8 %), and 8 % to 15 % (weighted-mean 12.1 %), respectively. The PFS of 6 months and 1 year after brachytherapy were 26.7 % to 86 % (weighted-mean 53.4 %) and 14 % to 81 % (weighted-mean 24.1 %). Most patients with rGBM will experience treatment failure again during the follow-up period, mainly local (10.7 % to 79.4 %) or marginal(3.6 % to 22.2 %) recurrence, followed by distant failure (6.7 % to 57.7 %). Although therapeutic AEs had not been uniformly reported, the overall toxicity rate was considered to be low. The common AEs reported included progressive neurologic deterioration, seizures, CSF leak, brain necrosis, hemorrhage, and infection/meningitis, with a weighted-mean incidence of 1.9 %, 2.4 %, 4.1 %, 5.4 %, 2.1 %, and 3.8 %, respectively. CONCLUSIONS The evidence summarized above, albeit mostly level III, suggests that brachytherapy has acceptable safety and good post-treatment clinical efficacy for selected patients with rGBM. Well-designed, high-quality, large-sample randomized controlled and prospective studies are needed to further validate these findings.
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Affiliation(s)
- Xiaoyong Xiang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen 518116, China
| | - Zhe Ji
- Department of Radiation Oncology, Peking University Third Hospital, 49 North Garden Road, Haidian District, Beijing 100191, China
| | - Jing Jin
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen 518116, China; Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China.
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Rathi S, Griffith JI, Zhang W, Zhang W, Oh JH, Talele S, Sarkaria JN, Elmquist WF. The influence of the blood-brain barrier in the treatment of brain tumours. J Intern Med 2022; 292:3-30. [PMID: 35040235 DOI: 10.1111/joim.13440] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Brain tumours have a poor prognosis and lack effective treatments. The blood-brain barrier (BBB) represents a major hurdle to drug delivery to brain tumours. In some locations in the tumour, the BBB may be disrupted to form the blood-brain tumour barrier (BBTB). This leaky BBTB enables diagnosis of brain tumours by contrast enhanced magnetic resonance imaging; however, this disruption is heterogeneous throughout the tumour. Thus, relying on the disrupted BBTB for achieving effective drug concentrations in brain tumours has met with little clinical success. Because of this, it would be beneficial to design drugs and drug delivery strategies to overcome the 'normal' BBB to effectively treat the brain tumours. In this review, we discuss the role of BBB/BBTB in brain tumour diagnosis and treatment highlighting the heterogeneity of the BBTB. We also discuss various strategies to improve drug delivery across the BBB/BBTB to treat both primary and metastatic brain tumours. Recognizing that the BBB represents a critical determinant of drug efficacy in central nervous system tumours will allow a more rapid translation from basic science to clinical application. A more complete understanding of the factors, such as BBB-limited drug delivery, that have hindered progress in treating both primary and metastatic brain tumours, is necessary to develop more effective therapies.
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Affiliation(s)
- Sneha Rathi
- Department of Pharmaceutics, University of Minnesota, Minneapolis, MN, USA
| | - Jessica I Griffith
- Department of Pharmaceutics, University of Minnesota, Minneapolis, MN, USA
| | - Wenjuan Zhang
- Department of Pharmaceutics, University of Minnesota, Minneapolis, MN, USA
| | - Wenqiu Zhang
- Department of Pharmaceutics, University of Minnesota, Minneapolis, MN, USA
| | - Ju-Hee Oh
- Department of Pharmaceutics, University of Minnesota, Minneapolis, MN, USA
| | - Surabhi Talele
- Department of Pharmaceutics, University of Minnesota, Minneapolis, MN, USA
| | - Jann N Sarkaria
- Department of Radiation Oncology, Mayo Clinic, Rochester, MN, USA
| | - William F Elmquist
- Department of Pharmaceutics, University of Minnesota, Minneapolis, MN, USA
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Brachytherapy for central nervous system tumors. J Neurooncol 2022; 158:393-403. [PMID: 35546384 DOI: 10.1007/s11060-022-04026-3] [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: 03/14/2022] [Accepted: 04/28/2022] [Indexed: 10/18/2022]
Abstract
Radiation is a mainstay of treatment for central nervous system (CNS) tumors. Brachytherapy involves the placement of a localized/interstitial radiation source into a tumor or resection bed and has distinct advantages that can make it an attractive form of radiation when used in the appropriate setting. However, the data supporting use of brachytherapy is clouded by variability in radiation sources, techniques, delivered doses, and trial designs. The goal of this manuscript is to identify consistent themes, review the highest-level evidence and potential indications for brachytherapy in CNS tumors, as well as highlight avenues for future work. Improved understanding of the underlying biology, indications, complications, and evolving industry-academic collaborations, place brachytherapy on the brink of a resurgence.
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Jiang H, Ge R, Chen S, Huang L, Mao J, Sheng L. miRNA-204-5p acts as tumor suppressor to influence the invasion and migration of astrocytoma by targeting ezrin and is downregulated by DNA methylation. Bioengineered 2021; 12:9301-9312. [PMID: 34723710 PMCID: PMC8809991 DOI: 10.1080/21655979.2021.2000244] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 10/26/2021] [Accepted: 10/27/2021] [Indexed: 12/15/2022] Open
Abstract
microRNAs (miRNAs), through their regulation of the expression and activity of numerous proteins, are involved in almost all cellular processes. As a consequence, dysregulation of miRNA expression is closely associated with the development and progression of cancers. Recently, DNA methylation has been shown to play a key role in miRNA expression dysregulation in tumors. miRNA-204-5p commonly acts in the suppression of oncogenes in tumors. In this study, the levels of miRNA-204-5p were found to be down-regulated in the astrocytoma samples. miRNA-204-5p expression was also down-regulated in two astrocytoma cell lines (U87MG and LN382). Examination of online databases showed that the miRNA-204-5p promoter regions exist in CpG islands, which might be subjected to differential methylation. Subsequently, we showed that the miRNA-204-5p promoter region was hypermethylated in the astrocytoma tissue samples and cell lines. Then we found that ezrin expression was down-regulated with an increase in miRNA-204-5p expression in LN382 and U87MG cells after 5-aza-2'-deoxycytidine (5'AZA) treatment compared with control DMSO treatment. In addition, LN382 and U87MG cells treated with 5'AZA exhibited significantly inhibited cell invasion and migration . In a recovery experiment, cell invasion and migration returned to normal levels as miRNA-204-5p and ezrin levels were restored. Overall, our study suggests that miRNA-204-5p acts as a tumor suppressor to influence astrocytoma invasion and migration by targeting ezrin and that miRNA-204-5p expression is downregulated by DNA methylation. This study provides a new potential strategy for astrocytoma treatment.
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Affiliation(s)
- Haibo Jiang
- Department of Emergency Intensive Care Unit, Yijishan Hospital, First Affiliated Hospital of Wannan Medical College, Wuhu City, China
| | - Ruixiang Ge
- Department of Neurosurgery, Yijishan Hospital, First Affiliated Hospital of Wannan Medical College, Wuhu City, China
| | - Siwen Chen
- Department of Reproductive Medicine, Yijishan Hospital, First Affiliated Hospital of Wannan Medical College, Wuhu City, China
| | - Laiquan Huang
- Department of Hematology, Yijishan Hospital, First Affiliated Hospital of Wannan Medical College, Wuhu City, China
| | - Jie Mao
- Department of Neurosurgery, Shenzhen Hospital of Southern Medical University, Shenzhen City, China
| | - Lili Sheng
- Department of Oncology, Yijishan Hospital, First Affiliated Hospital of Wannan Medical College, Wuhu City, China
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Krivoshapkin A, Gaytan A, Abdullaev O, Salim N, Sergeev G, Marmazeev I, Cesnulis E, Killeen T, Tyuryn V, Kiselev R, Syomin P, Spallone A. Prospective comparative study of intraoperative balloon electronic brachytherapy versus resection with multidisciplinary adjuvant therapy for recurrent glioblastoma. Surg Neurol Int 2021; 12:517. [PMID: 34754567 PMCID: PMC8571379 DOI: 10.25259/sni_494_2021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Accepted: 08/30/2021] [Indexed: 12/16/2022] Open
Abstract
Background Intraoperative balloon electronic brachytherapy (IBEB) may provide potential benefit for local control of recurrent cerebral glioblastomas (GBMs). Methods This is a preliminary report of an open-label, prospective, comparative cohort study conducted in two neurosurgical centers with ongoing follow-up. At recurrence, patients at one center (n = 15) underwent reresection with IBEB while, at the second center (n = 15), control subjects underwent re-resection with various accepted second-line adjuvant chemoradiotherapy options. A comparative analysis of overall survival (OS) and local progression-free survival (LPFS) following re-resection was performed. Exploratory subgroup analysis based on postoperative residual contrast-enhanced volume status was also done. Results In the IBEB group, median LPFS after re-resection was significantly longer than in the control group (8.0 vs. 6.0 months; log rank χ2 = 4.93, P = 0.026, P < 0.05). In addition, the median OS after second resection in the IBEB group was also significantly longer than in the control group (11.0 vs. 8.0 months; log rank χ2 = 4.23, P = 0.04, P < 0.05). Conclusion These hypothesis-generating results from a small cohort of subjects suggest putative clinical benefit in OS and LPFS associated with maximal safe re-resection of recurrent GBM with IBEB versus re-resection and standard adjuvant therapy, a hypothesis that deserves further testing in an appropriately powered clinical trial.
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Affiliation(s)
- Aleksey Krivoshapkin
- Department of Neurosurgery, Novosibirsk State Medical University, Novosibirsk, Russian Federation
| | - Aleksey Gaytan
- Department of Neurosurgery, Peoples' Friendship University of Russia, Moscow, Russian Federation
| | - Orkhan Abdullaev
- Department of Neurosurgery, European Medical Center, Moscow, Russian Federation
| | - Nidal Salim
- Department of Neurosurgery, European Medical Center, Moscow, Russian Federation
| | - Gleb Sergeev
- Department of Neurosurgery, European Medical Center, Moscow, Russian Federation
| | - Ilya Marmazeev
- Department of Neurosurgery, European Medical Center, Moscow, Russian Federation
| | - Evaldas Cesnulis
- Department of Neurosurgery, Klinik Hirslanden, Zürich, Switzerland
| | - Tim Killeen
- Department of Neurosurgery, Klinik Hirslanden, Zürich, Switzerland
| | - Vladimir Tyuryn
- Department of Neurosurgery, Novosibirsk State Medical University, Novosibirsk, Russian Federation
| | - Roman Kiselev
- Department of Neurosurgery, Meshalkin National Medical Research Center, Novosibirsk, Russian Federation
| | - Pavel Syomin
- Department of Neurosurgery, Meshalkin National Medical Research Center, Novosibirsk, Russian Federation
| | - Aldo Spallone
- Department of Neurosurgery, European Medical Center, Moscow, Russian Federation
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Choi M, Zabramski JM. Re-Irradiation Using Brachytherapy for Recurrent Intracranial Tumors: A Systematic Review and Meta-Analysis of the Literature. Cureus 2020; 12:e9666. [PMID: 32923261 PMCID: PMC7485916 DOI: 10.7759/cureus.9666] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 08/11/2020] [Indexed: 01/08/2023] Open
Abstract
Introduction We aim to compare the efficacy and toxicity of re-irradiation using brachytherapy for patients with locally recurrent brain tumors after previous radiation therapy. Methods We performed a systematic review of the major biomedical databases from 2005 to 2020 for eligible studies where patients were treated with re-irradiation for recurrent same site tumors using brachytherapy. Tumor types included high-grade gliomas (HGG) (World Health Organization (WHO) Grades 3 and 4), meningiomas, and metastases. The outcomes of interest were median overall survival (OS) and progression-free survival (PFS) after re-irradiation, the incidence of radiation necrosis (RN), and other relevant radiation-related adverse events (AE). We used a fixed-effect meta-analysis regression moderation model to compared results of interstitial versus intracavitary therapy, treatment with low-dose-rate (LDR) versus high-dose-rate (HDR) techniques, and outcomes by tumor type. Results The search resulted in a total of 194 articles. A total of 16 articles with 695 patients fulfilled the inclusion criteria and were selected for analysis. For high-grade glioma, meningioma, and brain metastasis the pooled meta-analysis showed mean symptomatic RN rates of 3.3% (standard error (SE) = 0.8%), 17.3% (SE = 5.0%), and 22.4% (SE = 7.0%), respectively, and mean rates of RN requiring surgical intervention of 3.0% (SE = 1.0%), 11.9% (SE = 5.3%), and 10.0% (SE = 7.3%), respectively. The mean symptomatic RN rates in the meta-analysis comparing interstitial versus intracavitary therapy were 3.4% and 4.9%, respectively (p = 0.36), and for the comparison of LDR versus HDR, the rates were 2.6% and 5.7%, respectively (p = 0.046). In comparing the symptomatic RN rates in comparison to HGG versus meningioma, the means were 3.3% and 17.3%, respectively (p = 0.006), and in HGG versus metastatic tumors, the means were 3.3% and 22.4%, respectively (p = 0.007). There was no significant difference in rates of RN requiring surgery in any of these groups. Due to the small number of studies and inconsistent recording of OS and PFS, statistical analysis of these parameters could not be performed. Conclusion Published literature on the same site re-irradiation using brachytherapy for recurrent brain tumors is highly limited, with inconsistent reporting of safety and efficacy outcomes. To overcome these shortcomings, we utilized a structured meta-analysis approach to show that re-irradiation with modern brachytherapy is generally safe in terms of the risks of symptomatic RN. We also found that symptomatic RN rates for brachytherapy are significantly lower in recurrent HGG compared to recurrent meningiomas (p = 0.006) and metastatic tumors (p = 0.007). Re-irradiation with brachytherapy is a feasible option for appropriately selected patients. The availability of Cesium-131 (Cs-131) shows promise in reducing toxicity while achieving excellent local control due to its physical properties, and the recent introduction of a novel surgically targeted radiation therapy device, that makes brachytherapy less technically demanding, may allow for more widespread adoption. Prospective trials with consistent reporting of endpoints are needed to explore whether these advances improve safety and efficacy in patients with recurrent, previously irradiated tumors.
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Affiliation(s)
- Mehee Choi
- Radiation Oncology, GT Medical Technologies, Inc., Tempe, USA
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Zhang H, Qin D, Jiang Z, Zhang J. SNHG9/miR-199a-5p/Wnt2 Axis Regulates Cell Growth and Aerobic Glycolysis in Glioblastoma. J Neuropathol Exp Neurol 2020; 78:939-948. [PMID: 31504670 DOI: 10.1093/jnen/nlz078] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Aerobic glycolysis is a characteristic in cancers that is important for cancer cell proliferation. Emerging evidence shows that long non-coding RNA (LncRNA) participates in glucose metabolism and cell proliferation in cancer. This study explored the effect of LncRNA: SNHG9 in glioblastoma. The mRNA expression of SNHG9 in human glioma tissues and glioblastoma cell lines was measured by qRT-PCR. Glioblastoma cell lines (U87 and U251) were transfected with miR-199a-5p or SNHG9-expressing plasmid and cell viability as well as concentrations of glucose and lactate were measured. The extracellular acidification was evaluated by glycolysis stress test. The Wnt2 levels were determined by qRT-PCR and Western blot. Results showed that the mRNA expression of SNHG9 was elevated in glioblastoma tissues. The elevated SNHG9 expression was related to lower survival rate in patients with glioma. SNHG9 could downregulate miR-199a-5p and upregulate Wnt2 in glioblastoma cells. Overexpression of SNHG9 in glioblastoma cells promoted aerobic glycolysis and cell proliferation, which could be attenuated by miR-199a-5p. Results of this study indicated an effect of SNHG9/miR-199a-5p/Wnt2 axis in regulating cell growth and aerobic glycolysis in glioblastoma.
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Affiliation(s)
- Han Zhang
- Quanzhou 1st Hospital Affiliated to Fujian Medical University, Inpatient Department, Chendong Branch of Quanzhou 1st Hospital
| | - Danxia Qin
- Quanzhou 1st Hospital Affiliated to Fujian Medical University, Inpatient Department, Dongjie Branch of Quanzhou 1st Hospital, Quanzhou, Fujian, China
| | - Zhixian Jiang
- Quanzhou 1st Hospital Affiliated to Fujian Medical University, Inpatient Department, Chendong Branch of Quanzhou 1st Hospital
| | - Jinning Zhang
- Quanzhou 1st Hospital Affiliated to Fujian Medical University, Inpatient Department, Chendong Branch of Quanzhou 1st Hospital
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Qin K, Tian G, Chen G, Zhou D, Tang K. miR-647 inhibits glioma cell proliferation, colony formation and invasion by regulating HOXA9. J Gene Med 2020; 22:e3153. [PMID: 31881106 DOI: 10.1002/jgm.3153] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Revised: 12/11/2019] [Accepted: 12/16/2019] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND MicroRNA-647 (miR-647) has been reported to regulate tumor development, although its role in glioma remains unclear. METHODS miR-647 expression in glioma cells and normal cells was measured using a quantitative real-time polymerase chain reaction. The effects of miR-647 expression on glioma cell proliferation, cell apoptosis, colony formation and cell invasion were measured using a cell counting kit-8 assay, flow cytometry, a colony formation assay and a transwell invasion assay. Luciferase activity reporter and western blot assays were conducted to explore whether homeobox A9 (HOXA9) was a direct target of miR-647. RESULTS We found that miR-647 expression was downregulated in glioma cell lines compared to the normal cell line. Overexpression of miR-647 inhibits glioma cell proliferation, colony formation and cell invasion, although it promotes apoptosis in vitro. HOXA9 was validated a direct target of miR-647 and the overexpression of HOXA9 reversed the effects of miR-647 on glioma cell behavior. CONCLUSIONS The identification of the miR-647/HOXA9 axis will advance our understanding underlying glioma progression and provide novel therapeutic targets for glioma treatment.
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Affiliation(s)
- Kun Qin
- Department of Neurosurgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Ge Tian
- Department of Neurology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Guangzhong Chen
- Department of Neurosurgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Dong Zhou
- Department of Neurosurgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Kai Tang
- Department of Neurosurgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
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Stauffer PR, Rodrigues DB, Goldstein R, Nguyen T, Yu Y, Wan S, Woodward R, Gibbs M, Vasilchenko IL, Osintsev AM, Bar-Ad V, Leeper DB, Shi W, Judy KD, Hurwitz MD. Feasibility of removable balloon implant for simultaneous magnetic nanoparticle heating and HDR brachytherapy of brain tumor resection cavities. Int J Hyperthermia 2020; 37:1189-1201. [PMID: 33047639 PMCID: PMC7864554 DOI: 10.1080/02656736.2020.1829103] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 09/03/2020] [Accepted: 09/20/2020] [Indexed: 10/23/2022] Open
Abstract
AIM Hyperthermia (HT) has been shown to improve clinical response to radiation therapy (RT) for cancer. Synergism is dramatically enhanced if HT and RT are combined simultaneously, but appropriate technology to apply treatments together does not exist. This study investigates the feasibility of delivering HT with RT to a 5-10mm annular rim of at-risk tissue around a tumor resection cavity using a temporary thermobrachytherapy (TBT) balloon implant. METHODS A balloon catheter was designed to deliver radiation from High Dose Rate (HDR) brachytherapy concurrent with HT delivered by filling the balloon with magnetic nanoparticles (MNP) and immersing it in a radiofrequency magnetic field. Temperature distributions in brain around the TBT balloon were simulated with temperature dependent brain blood perfusion using numerical modeling. A magnetic induction system was constructed and used to produce rapid heating (>0.2°C/s) of MNP-filled balloons in brain tissue-equivalent phantoms by absorbing 0.5 W/ml from a 5.7 kA/m field at 133 kHz. RESULTS Simulated treatment plans demonstrate the ability to heat at-risk tissue around a brain tumor resection cavity between 40-48°C for 2-5cm diameter balloons. Experimental thermal dosimetry verifies the expected rapid and spherically symmetric heating of brain phantom around the MNP-filled balloon at a magnetic field strength that has proven safe in previous clinical studies. CONCLUSIONS These preclinical results demonstrate the feasibility of using a TBT balloon to deliver heat simultaneously with HDR brachytherapy to tumor bed around a brain tumor resection cavity, with significantly improved uniformity of heating over previous multi-catheter interstitial approaches. Considered along with results of previous clinical thermobrachytherapy trials, this new capability is expected to improve both survival and quality of life in patients with glioblastoma multiforme.
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Affiliation(s)
- Paul R. Stauffer
- Thomas Jefferson University, Radiation Oncology Dept., Philadelphia PA
| | | | | | - Thinh Nguyen
- Thomas Jefferson University, Radiation Oncology Dept., Philadelphia PA
- Drexel University, Biomedical Engineering Dept., Philadelphia PA
| | - Yan Yu
- Thomas Jefferson University, Radiation Oncology Dept., Philadelphia PA
| | - Shuying Wan
- Thomas Jefferson University, Radiation Oncology Dept., Philadelphia PA
| | | | | | | | | | - Voichita Bar-Ad
- Thomas Jefferson University, Radiation Oncology Dept., Philadelphia PA
| | - Dennis B. Leeper
- Thomas Jefferson University, Radiation Oncology Dept., Philadelphia PA
| | - Wenyin Shi
- Thomas Jefferson University, Radiation Oncology Dept., Philadelphia PA
| | - Kevin D. Judy
- Thomas Jefferson University, Neurosurgery Department
| | - Mark D. Hurwitz
- Thomas Jefferson University, Radiation Oncology Dept., Philadelphia PA
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Re-irradiation for recurrent glioblastoma (GBM): a systematic review and meta-analysis. J Neurooncol 2018; 142:79-90. [PMID: 30523605 DOI: 10.1007/s11060-018-03064-0] [Citation(s) in RCA: 93] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Accepted: 11/24/2018] [Indexed: 12/12/2022]
Abstract
PURPOSE To determine the efficacy and toxicity of re-irradiation for patients with recurrent GBM. MATERIALS AND METHODS We searched various biomedical databases from 1998 to 2018, for eligible studies where patients were treated with re-irradiation for recurrent GBM. Outcomes of interest were 6 and 12-month overall survival (OS-6, OS-12), 6 and 12-month progression free survival (PFS-6, PFS-12) and serious (Grade 3 +) adverse events (AE). We used the random effects model to pool outcomes across studies and compared pre-defined subgroups using interaction test. Methodological quality of each study was assessed using the Newcastle-Ottawa scoring system. RESULTS We found 50 eligible non-comparative studies including 2095 patients. Of these, 42% were of good or fair quality. The pooled results were as follows: OS-6 rate 73% (95% confidence interval (CI) 69-77%), OS-12 rate 36% (95% CI 32-40%), PFS-6 rate 43% (95% CI 35-50%), PFS-12 rate 17% (95% CI 13-20%), and Grade 3 + AE rate 7% (95% CI 4-10%). Subgroup analysis showed that prospective studies reported higher toxicity rates, and studies which utilized brachytherapy to have a longer OS-12. Within the external beam radiotherapy group, there was no dose-response [above or below 36 Gy in 2 Gy equivalent doses (EQD2)]. However, a short fractionation regimen (≤ 5 fractions) seemed to provide superior PFS-6. CONCLUSION The available evidence, albeit mostly level III, suggests that re-irradiation provides encouraging disease control and survival rates. Toxicity was not uniformly reported, but seemed to be low from the included studies. Randomized controlled trials (RCT) are needed to establish the optimal management strategy for recurrent GBM.
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12
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Zhen Y, Nan Y, Guo S, Zhang L, Li G, Yue S, Liu X. Knockdown of NEAT1 repressed the malignant progression of glioma through sponging miR-107 and inhibiting CDK14. J Cell Physiol 2018; 234:10671-10679. [PMID: 30480816 DOI: 10.1002/jcp.27727] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Accepted: 10/22/2018] [Indexed: 01/03/2023]
Abstract
Aberrant expressions of long noncoding RNAs (lncRNAs) contribute to carcinogenesis via regulating tumor suppressors or oncogenes. LncRNA nuclear paraspeckle assembly transcript 1 (NEAT1) has been recognized as an oncogene to promote tumor progression of many cancers. However, the function of NEAT1 in glioma remains poorly discovered. Currently, we focused on the role of NEAT1 in glioma. Here, we found that NEAT1 was greatly upregulated in glioma cells compared with normal human astrocytes (NHAs). Meanwhile, miR-107 was significantly downregulated in glioma cell lines. Then, we observed that knockdown of NEAT1 suppressed the growth and invasion of glioma cells including U251 and SW1783 cells. Reversely, overexpression of NEAT1 dramatically induced glioma cell survival, increased cell colony formation, and promoted cell invasion ability. Subsequently, bioinformatics analysis was performed to predict the correlation between NEAT1 and miR-107. Moreover, it was revealed that NEAT1 could modulate miR-107 via serving as an endogenous sponge of miR-107. The direct binding correlation between NEAT1 and miR-107 was validated in our study. In addition, cyclin dependent kinase 14 (CDK14) was predicted as an messenger RNA target of miR-107 and the association between them was confirmed in our research. Moreover, we implied that NEAT1 demonstrated its biological functions via regulating miR-107 and CDK14 in vivo. In summary, our findings indicated that NEAT1/miR-107/CDK14 axis participated in glioma development. NEAT1 could act as a significant prognostic biomarker in glioma progression.
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Affiliation(s)
- Yingwei Zhen
- Department of Neurosurgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yang Nan
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China
| | - Shewei Guo
- Department of Neurosurgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Longzhou Zhang
- Department of Neurosurgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Ge Li
- Department of Neurosurgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Saichao Yue
- Department of Neurosurgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Xianzhi Liu
- Department of Neurosurgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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Quivrin M, Peignaux-Casasnovas K, Martin É, Rouffiac M, Thibouw D, Chevalier C, Vulquin N, Aubignac L, Truc G, Créhange G. Salvage brachytherapy as a modern reirradiation technique for local cancer failure: The Phoenix is reborn from its ashes. Cancer Radiother 2018; 22:372-381. [DOI: 10.1016/j.canrad.2018.01.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Revised: 01/24/2018] [Accepted: 01/30/2018] [Indexed: 01/14/2023]
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Zhou Y, Tan Z, Chen K, Wu W, Zhu J, Wu G, Cao L, Zhang X, Zeng X, Li J, Zhang W. Overexpression of SHCBP1 promotes migration and invasion in gliomas by activating the NF-κB signaling pathway. Mol Carcinog 2018; 57:1181-1190. [PMID: 29745440 DOI: 10.1002/mc.22834] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2018] [Revised: 04/17/2018] [Accepted: 05/04/2018] [Indexed: 01/11/2023]
Abstract
Gliomas are common, aggressive central nervous system tumors with poor overall survival rates. Despite improvements in neurosurgery, chemotherapy, and radiotherapy, the outcomes of patients with malignant gliomas remain poor. Therefore, increased knowledge of the molecular mechanisms that regulate glioma progression is crucial to identify novel therapeutic targets. Here, we reported that SHCBP1, a member of Src homolog and collagen homolog (Shc) family, was significantly overexpressed in glioma tissues and glioma cell lines compared to the corresponding normal tissues and cells. Ectopic overexpression of SHCBP1 promoted glioma cell migration and invasion, whereas knockdown of endogenous SHCBP1 had the opposite effects. Importantly, we demonstrated that SHCBP1 promoted aggressiveness in gliomas by activating the NF-κB signaling pathway. Collectively, our study indicates that SHCBP1 plays a pivotal role to promote progression in gliomas and targeting the oncogenic effects of SHCBP1 may provide a clinical strategy to treat gliomas.
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Affiliation(s)
- Yanqing Zhou
- Neurosurgical Research Institute, The First Affiliated Hospital of Guangdong Pharmaceutics University, Guangzhou, Guangdong, China
| | - Zhanyao Tan
- Guangdong Province Key Laboratory of Brain Function and Disease, Department of Biochemistry, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Kun Chen
- Department of Neurosurgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Wenjiao Wu
- Department of Neurosurgery, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong, China
| | - Jinrong Zhu
- Guangdong Province Key Laboratory of Brain Function and Disease, Department of Biochemistry, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Geyan Wu
- Guangdong Province Key Laboratory of Brain Function and Disease, Department of Biochemistry, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Lixue Cao
- Guangdong Province Key Laboratory of Brain Function and Disease, Department of Biochemistry, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Xin Zhang
- Clinical Experimental Center, Department of Pathology (Clinical Biobanks), Jiangmen Central Hospital, Affiliated Jiangmen Hospital of Sun Yat-sen University, Jiangmen, Guangdong, China
| | - Xin Zeng
- Guangdong Province Key Laboratory of Brain Function and Disease, Department of Biochemistry, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Jun Li
- Guangdong Province Key Laboratory of Brain Function and Disease, Department of Biochemistry, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Wei Zhang
- Neurosurgical Research Institute, The First Affiliated Hospital of Guangdong Pharmaceutics University, Guangzhou, Guangdong, China
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Gobitti C, Borsatti E, Arcicasa M, Roncadin M, Franchin G, Minatel E, Skrap M, Zanotti B, Tuniz F, Cimitan M, Capra E, Drigo A, Trovò MG. Treatment of recurrent high-grade gliomas with GliaSite brachytherapy: A prospective mono-institutional Italian experience. TUMORI JOURNAL 2018; 97:614-9. [DOI: 10.1177/030089161109700513] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Aims and background The present study evaluated toxicity, local control, and survival in patients with relapsed high-grade glioma after surgery and external beam radiation therapy and treated with re-operation and GliaSite brachytherapy. Methods Between 2006 and 2008, 15 patients with recurrent high-grade glioma underwent re-operation and GliaSite brachytherapy. Ten patients were males and 5 females. Median age was 40 years (range, 20–71). Karnofsky performance status was ≥70. All patients but one received GliaSite irradiation of the surgical cavity wall at the dose of 4500 cGy at a depth of 1 cm. Results No severe acute side effects were observed during GliaSite brachytherapy. Pathologically documented, symptomatic late radiation necrosis was observed in 3 patients (20%); 2 subsequently died of further complications. Two patients were alive at a median follow-up 13 months (range, 1–30). Median overall survival after GliaSite brachytherapy was 13 months. Conclusions Patients with recurrent high-grade glioma can be treated with additional surgery and GliaSite brachytherapy, delivering 4500 cGy at 1 cm depth without significant acute side effects but with a significant rate (20%) of late radiation necrosis, resulting in 13% of treatment-related deaths. Compared with the literature, survival results in our study appear to be satisfactory, but they may be related to patient selection criteria. Re-intervention followed by GliaSite brachytherapy should not be offered as a standard treatment for recurrent high-grade glioma, because of the high rate of late complications, treatment-related deaths, and high treatment costs.
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Affiliation(s)
- Carlo Gobitti
- Radiation Oncology, Centro di Riferimento Oncologico, National Cancer Institute, Aviano
| | - Eugenio Borsatti
- Nuclear Medicine, Centro di Riferimento Oncologico, National Cancer Institute, Aviano
| | - Mauro Arcicasa
- Radiation Oncology, Centro di Riferimento Oncologico, National Cancer Institute, Aviano
| | - Mario Roncadin
- Radiation Oncology, Centro di Riferimento Oncologico, National Cancer Institute, Aviano
| | - Giovanni Franchin
- Radiation Oncology, Centro di Riferimento Oncologico, National Cancer Institute, Aviano
| | - Emilio Minatel
- Radiation Oncology, Centro di Riferimento Oncologico, National Cancer Institute, Aviano
| | - Miran Skrap
- Neurosurgery Department, University Hospital, Udine, Italy
| | - Bruno Zanotti
- Neurosurgery Department, University Hospital, Udine, Italy
| | | | - Marino Cimitan
- Nuclear Medicine, Centro di Riferimento Oncologico, National Cancer Institute, Aviano
| | - Elvira Capra
- Medical Physics Divisions, Centro di Riferimento Oncologico, National Cancer Institute, Aviano
| | - Annalisa Drigo
- Medical Physics Divisions, Centro di Riferimento Oncologico, National Cancer Institute, Aviano
| | - Mauro G Trovò
- Radiation Oncology, Centro di Riferimento Oncologico, National Cancer Institute, Aviano
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Straube C, Scherb H, Gempt J, Kirschke J, Zimmer C, Schmidt-Graf F, Meyer B, Combs SE. Adjuvant stereotactic fractionated radiotherapy to the resection cavity in recurrent glioblastoma - the GlioCave study (NOA 17 - ARO 2016/3 - DKTK ROG trial). BMC Cancer 2018; 18:15. [PMID: 29298660 PMCID: PMC5753454 DOI: 10.1186/s12885-017-3928-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Accepted: 12/15/2017] [Indexed: 12/23/2022] Open
Abstract
Background Glioblastoma relapses in the vast majority of cases within 1 year. Maximum safe resection of the recurrent glioblastoma can be offered in some cases. Re-irradiation has been established for the treatment of recurrent glioblastoma, too. In both cases, adjuvant treatment, mostly using temozolomide, can improve PFS and OS after these interventions. However, combining gross tumor resection and adjuvant re-radiotherapy to the resection cavity has not been tested so far. Methods/Design In the multicenter two-armed randomized Phase II GlioCave Study, fractionated stereotactic radiotherapy to the resection cavity, after gross tumor resection of recurrent glioblastoma, will be compared to observation. Depending on the size of the target volume, a total dose of 46 Gy in 2 Gy per fraction or a total dose if 36 Gy in 3 Gy per fraction will be applied. Progression free survival will be the primary endpoint of the study. Discussion Adjuvant treatment after gross tumor resection of recurrent glioblastoma is currently deemed to be limited to chemotherapy. However, re-irradiation has proven safety and tolerability in the treatment of macroscopic disease. Performing re-irradiation as an adjuvant measure after gross tumor resection has not been tested so far. The GlioCave Study will investigate the efficacy and the safety profile of this approach. Trial registration The trial was prospectively registered at clinicaltrials.gov (NCT02715297, registration date February 29th, 2016). The protocol presented hereby refers to the version 1.2 of the protocol (January 11th, 2017).
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Affiliation(s)
- Christoph Straube
- Klinik für RadioOnkologie und Strahlentherapie, Technische Universität München (TUM), Ismaninger Straße 22, 81675, Munich, Germany. .,Deutsches Konsortium für Translationale Krebsforschung (DKTK) - Partner Site Munich, 81675, Munich, Germany.
| | - Hagen Scherb
- Institute of Computational Biology, Helmholtz Zentrum München, Deutsches Forschungszentrum fuer Gesundheit und Umwelt (GmbH), Ingolstaedter Landstr.1, 85764, Neuherberg, Germany
| | - Jens Gempt
- Neurochirurgische Klinik und Poliklinik, Technische Universität München (TUM), Ismaninger Straße 22, 81675, Munich, Germany
| | - Jan Kirschke
- Abteilung für diagnostische und interventionelle Neuroradiologie, Technische Universität München (TUM), Ismaninger Straße 22, 81675, Munich, Germany
| | - Claus Zimmer
- Abteilung für diagnostische und interventionelle Neuroradiologie, Technische Universität München (TUM), Ismaninger Straße 22, 81675, Munich, Germany
| | - Friederike Schmidt-Graf
- Neurologische Klinik und Poliklinik, Technische Universität München (TUM), Ismaninger Straße 22, 81675, Munich, Germany
| | - Bernhard Meyer
- Neurochirurgische Klinik und Poliklinik, Technische Universität München (TUM), Ismaninger Straße 22, 81675, Munich, Germany
| | - Stephanie E Combs
- Klinik für RadioOnkologie und Strahlentherapie, Technische Universität München (TUM), Ismaninger Straße 22, 81675, Munich, Germany.,Institut für Innovative Radiotherapie (iRT), Department of Radiation Sciences (DRS), Helmholtz Zentrum München, Ingolstädter Landstraße 1, 85764, Neuherberg, Germany.,Deutsches Konsortium für Translationale Krebsforschung (DKTK) - Partner Site Munich, 81675, Munich, Germany
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Caragher SP, Sachdev S, Ahmed A. Radiotherapy and Glioma Stem Cells: Searching for Chinks in Cellular Armor. CURRENT STEM CELL REPORTS 2017; 3:348-357. [PMID: 29354390 DOI: 10.1007/s40778-017-0102-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Purpose of the review Radiation became a pillar of oncologic treatment in the last century and provided a powerful and effective locoregional treatment of solid malignancies. After achieving some of the first cures in lymphomas and skin cancers, it assumed a key role in curative treatment of epithelioid malignancies. Despite success across a variety of histologic types, glioblastoma (GBM), the most common primary brain tumor afflicting adults, remains ultimately resistant to current radiation strategies. While GBMs demonstrate an initial response, recurrence is essentially universal and fatal, and typically reoccur in the areas that received the most intense radiation. Recent Findings Glioma stem cells (GSCs), a subpopulation of tumor cells with expression profiles similar to neural stem cells and marked self-renewal capacities, have been shown to drive tumor recurrence and preclude curative radiotherapy. Recent research has shown that these cells have enhanced DNA repair capacity, elevated resistance to cytotoxic ion fluxes and escape multi-modality therapies. Summary We will analyze the current understanding of GSCs and radiation by highlighting key discoveries probing their ability to withstand radiotherapy. We then speculate on novel mechanisms by which GSC can be made sensitive to or specifically targeted by radiation therapy.
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Affiliation(s)
- Seamus P Caragher
- Department of Neurological Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Sean Sachdev
- Department of Radiation Oncology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Atique Ahmed
- Department of Neurological Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
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Srivastava S, Syed SB, Kumar V, Islam A, Ahmad F, Hassan MI. Fas-activated serine/threonine kinase: Structure and function. GENE REPORTS 2017. [DOI: 10.1016/j.genrep.2017.07.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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19
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Huo L, Bai X, Wang Y, Wang M. Betulinic acid derivative B10 inhibits glioma cell proliferation through suppression of SIRT1, acetylation of FOXO3a and upregulation of Bim/PUMA. Biomed Pharmacother 2017; 92:347-355. [PMID: 28554130 DOI: 10.1016/j.biopha.2017.05.074] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Revised: 05/09/2017] [Accepted: 05/16/2017] [Indexed: 12/27/2022] Open
Abstract
Glioma is the most common primary malignant tumor of the central nervous system. B10 is a new glycosylated derivative of betulinic acid with enhanced cytotoxic activity. The present study was designed to explore the molecular mechanism underlying the anticancer effect of B10 in glioma cells. 25-50μM B10 resulted in a significant decrease of cell viability and BrdU incorporation. 25-50mg/kg B10 significantly reduced the implanted tumor weight and volume in nude mice. Activation of apoptosis was found in glioma cells when the cells were exposed to B10, as evidenced by increased number of TUNEL-stained cells, increased caspase 3 and 9 activities, and Bax and cleaved PARP expression. B10 caused a significant decrease in mitochondrial oxygen consumption rate, mitochondrial complex I, II, III, IV, and V activities, and ATP level, and increase of mitochondrial ROS production, indicating the induction of mitochondrial dysfunction. B10 reduced the expression of sirtuin (SIRT) 1 and resulted in an increase in forkhead box O (FOXO) 3a expression and acetylation. Activation of SIRT1 by SRT-1720 and downregualtion of FOXO3a using shRNA significantly inhibited B10-induced cytotoxicity. B10 markedly increased the expression of Bim and PUMA. Downregualtion of FOXO3a or activation of SIRT1 significantly inhibited B10-induced increase of Bim and PUMA expression. Downregualtion of Bim or PUMA could suppress B10-induced increase of Bax expression. Moreover, B10-induced cytotoxicity was significantly suppressed by downregulation of Bim or PUMA. In summary, we identified B10 as a potent therapeutic candidate for glioma treatment and SIRT1-FOXO3a-Bim/PUMA axis as a novel therapeutic target.
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Affiliation(s)
- Longwei Huo
- Department of Neurosurgery, The First Affiliated Hospital of Xi'an Jiao Tong University, Xi'an 710061, Shaanxi, China; Department of Neurosurgery, Yulin First Hospital Affiliated to Xi'an Jiao Tong University, Yulin 719000, Shaanxi, China
| | - Xiaobin Bai
- Department of Neurosurgery, The First Affiliated Hospital of Xi'an Jiao Tong University, Xi'an 710061, Shaanxi, China
| | - Yafei Wang
- Department of Neurosurgery, Yulin First Hospital Affiliated to Xi'an Jiao Tong University, Yulin 719000, Shaanxi, China
| | - Maode Wang
- Department of Neurosurgery, The First Affiliated Hospital of Xi'an Jiao Tong University, Xi'an 710061, Shaanxi, China.
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Wang Q, Li Q, Zhou P, Deng D, Xue L, Shao N, Peng Y, Zhi F. Upregulation of the long non-coding RNA SNHG1 predicts poor prognosis, promotes cell proliferation and invasion, and reduces apoptosis in glioma. Biomed Pharmacother 2017; 91:906-911. [PMID: 28501778 DOI: 10.1016/j.biopha.2017.05.014] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Revised: 04/26/2017] [Accepted: 05/04/2017] [Indexed: 01/22/2023] Open
Abstract
Long non-coding RNAs (lncRNAs), which are non-coding RNAs with a length above 200 nucleotides, have emerged as novel and important gene expression modulators in carcinogenesis. Recent evidence indicates that the lncRNA small nucleolar RNA host gene 1 (SNHG1) functions as an oncogene in several types of human cancers. However, its function in the development of glioma remains unknown. The aim of this research was to investigate the clinical aspects and biological mechanisms of SNHG1 in glioma. SNHG1 expression was measured in glioma tissues and cell lines by quantitative real-time PCR (qRT-PCR). The association between SNHG1 expression in tissues and clinicopathological characteristics and prognosis in glioma patients was also explored. Gain-of-function and loss-of-function studies using SNHG1 cDNA and siRNA, respectively, were used to investigate the role of SNHG1 in cell proliferation, invasion and apoptosis in glioma. SNHG1 was highly expressed in glioma tissues, and its upregulation was closely related to old age. Kaplan-Meier analysis showed that high expression of SNHG1 was significantly associated with poor overall survival (OS). Functionally, ectopic expression of SNHG1 enhanced cell proliferation and cell invasion and reduced cell apoptosis in vitro, while SNHG1 knockdown reversed these effects. Taken together, our findings indicate that SNHG1 functions as an oncogene in glioma and may serve as a novel therapeutic target in future treatments.
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Affiliation(s)
- Qiang Wang
- Department of Neurosurgery, The First People's Hospital of Changzhou, Changzhou, Jiangsu, China
| | - Qing Li
- Department of Pathology, The First People's Hospital of Changzhou, Changzhou, Jiangsu, China
| | - Peng Zhou
- Department of Neurosurgery, The First People's Hospital of Changzhou, Changzhou, Jiangsu, China
| | - Danni Deng
- Modern Medical Research Center, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, China
| | - Lian Xue
- Modern Medical Research Center, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, China
| | - Naiyuan Shao
- Department of Neurosurgery, The First People's Hospital of Changzhou, Changzhou, Jiangsu, China.
| | - Ya Peng
- Department of Neurosurgery, The First People's Hospital of Changzhou, Changzhou, Jiangsu, China.
| | - Feng Zhi
- Department of Neurosurgery, The First People's Hospital of Changzhou, Changzhou, Jiangsu, China; Modern Medical Research Center, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, China.
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Overexpression of SMC4 activates TGFβ/Smad signaling and promotes aggressive phenotype in glioma cells. Oncogenesis 2017; 6:e301. [PMID: 28287612 PMCID: PMC5533949 DOI: 10.1038/oncsis.2017.8] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Revised: 01/21/2017] [Accepted: 01/31/2017] [Indexed: 12/18/2022] Open
Abstract
Overexpression of structural maintenance of chromosomes 4 (SMC4) has been reported to be involved in tumor cell growth, migration and invasion, and to be correlated with poor prognosis of cancer patient. However, its clinical significance and biological role in glioma remain unknown. Herein, we found that SMC4 expression at both mRNA and protein level was markedly increased in glioma cells and clinical tissues and that it correlated with poor prognosis. SMC4 overexpression markedly promoted the glioma cell proliferation rate and migration and invasive capability in vitro and in vivo, whereas SMC4 downregulation reduced it. Moreover, the transforming growth factor β (TGFβ)/Smad signaling pathway, which was activated in SMC4-transduced glioma cells and inhibited in SMC4-silenced glioma cells, contributed to SMC4-mediated glioma cell aggressiveness. Our results provide new insight into the oncofunction of SMC4 and the mechanism by which the TGFβ/Smad pathway is hyperactivated in gliomas, indicating that SMC4 is a valuable prognostic factor and a potential therapeutic target in gliomas.
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Fan W, Wang W, Mao X, Chu S, Feng J, Xiao D, Zhou J, Fan S. Elevated levels of p-Mnk1, p-eIF4E and p-p70S6K proteins are associated with tumor recurrence and poor prognosis in astrocytomas. J Neurooncol 2016; 131:485-493. [PMID: 27900644 DOI: 10.1007/s11060-016-2327-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Accepted: 11/08/2016] [Indexed: 10/20/2022]
Abstract
Malignant astrocytomas are able to invade neighboring and distant areas of the normal brain. Signaling pathway alterations play important role in the development of astrocytomas. Deregulation of eukaryotic translation initiation factor 4E (eIF4E) by MAP kinase-interacting kinases (Mnk) on Ser-209 directly or PI3K/mTOR/S6K pathway indirectly has a critical effect on promoting cellular proliferation, malignant transformation and metastasis. We examined and analyzed the correlation between expression of p-Mnk1, p-eIF4E and p-p70S6K proteins and clinicopathological features in 103 astrocytomas and 54 non-tumorous brain tissues. The results indicated that positive percentage of overexpression of p-Mnk1 and p-eIF4E proteins in astrocytomas were significantly higher than that of in the non-tumorous brain tissues (P < 0.05). Elevated p-Mnk1 and p-eIF4E and co-overexpressed three proteins were associated with tumor recurrence (P = 0.003, P = 0.006, P = 0.007, respectively). Overexpressed p-eIF4E significantly correlated with the tumor size (P = 0.019). In addition, overexpression of p-eIF4E and three proteins common expression were related to the WHO grade of astrocytomas (P = 0.001, P = 0.044 respectively). Spearman's rank correlation test further showed that the expression of p-Mnk1 was strongly positive correlated with the expression of p-eIF4E in astrocytomas (r = 0.294, P = 0.003). Besides, overexpression of p-eIF4E and co-expression of p-Mnk1, p-eIF4E and p-p70S6K proteins were inversely correlated with overall survival rates of astrocytomas. Multivariate Cox regression analysis further identified that the elevated p-eIF4E expression, three proteins common expression were correlated with unfavorable prognosis of astrocytomas regardless of ages and WHO grades. Taken together, overexpression of p-eIF4E and co-expression of p-Mnk1, p-eIF4E and p-p70S6K proteins could be used as novel independent poor prognostic biomarkers for patients with astrocytomas.
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Affiliation(s)
- Weibing Fan
- Department of Neurology, The Third Hospital of Changsha, Changsha, 410011, Hunan, China
| | - Weiyuan Wang
- Department of Pathology, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, China.
| | - Xinfa Mao
- Department of Neurology, The Third Hospital of Changsha, Changsha, 410011, Hunan, China
| | - Shuzhou Chu
- Department of Pathology, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, China
| | - Juan Feng
- Department of Pathology, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, China
| | - Desheng Xiao
- Department of Pathology, Xiangya School of Medicine, Central South University, Changsha, 410011, Hunan, China
| | - Jianhua Zhou
- Department of Pathology, Xiangya School of Medicine, Central South University, Changsha, 410011, Hunan, China
| | - Songqing Fan
- Department of Pathology, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, China.
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Dong Y, Fu C, Guan H, Zhang T, Zhang Z, Zhou T, Li B. Re-irradiation alternatives for recurrent high-grade glioma. Oncol Lett 2016; 12:2261-2270. [PMID: 27703519 PMCID: PMC5038913 DOI: 10.3892/ol.2016.4926] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2015] [Accepted: 03/01/2016] [Indexed: 12/28/2022] Open
Abstract
Despite advances in the fields of surgery, chemotherapy and radiotherapy, the prognosis for high-grade glioma (HGG) remains unsatisfactory. The majority of HGG patients experience disease recurrence. To date, no standard treatments have been established for recurrent HGG. Repeat surgery and chemotherapy demonstrate moderate efficacy. As recurrent lesions are usually located within the previously irradiated field, a second course of irradiation was once considered controversial, as it was considered to exhibit unsatisfactory efficacy and radiation-related toxicities. However, an increasing number of studies have indicated that re-irradiation may present an efficacious treatment for recurrent HGG. Re-irradiation may be delivered via conventionally fractionated stereotactic radiotherapy, hypofractionated stereotactic radiation therapy, stereotactic radiosurgery and brachytherapy techniques. In the present review, the current literature regarding re-irradiation treatment for recurrent HGG is summarized with regard to survival outcome and side effects.
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Affiliation(s)
- Yuanli Dong
- Sixth Department of Radiation Oncology, Shandong Cancer Hospital, Jinan, Shandong 250117, P.R. China; School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Jinan, Shandong 250014, P.R. China
| | - Chengrui Fu
- Sixth Department of Radiation Oncology, Shandong Cancer Hospital, Jinan, Shandong 250117, P.R. China
| | - Hui Guan
- Sixth Department of Radiation Oncology, Shandong Cancer Hospital, Jinan, Shandong 250117, P.R. China; School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Jinan, Shandong 250014, P.R. China
| | - Tianyi Zhang
- Sixth Department of Radiation Oncology, Shandong Cancer Hospital, Jinan, Shandong 250117, P.R. China
| | - Zicheng Zhang
- Sixth Department of Radiation Oncology, Shandong Cancer Hospital, Jinan, Shandong 250117, P.R. China
| | - Tao Zhou
- Sixth Department of Radiation Oncology, Shandong Cancer Hospital, Jinan, Shandong 250117, P.R. China
| | - Baosheng Li
- Sixth Department of Radiation Oncology, Shandong Cancer Hospital, Jinan, Shandong 250117, P.R. China
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Deng D, Wang L, Chen Y, Li B, Xue L, Shao N, Wang Q, Xia X, Yang Y, Zhi F. MicroRNA-124-3p regulates cell proliferation, invasion, apoptosis, and bioenergetics by targeting PIM1 in astrocytoma. Cancer Sci 2016; 107:899-907. [PMID: 27088547 PMCID: PMC4946703 DOI: 10.1111/cas.12946] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2015] [Revised: 03/22/2016] [Accepted: 04/09/2016] [Indexed: 12/12/2022] Open
Abstract
The PIM1 protein is an important regulator of cell proliferation, the cell cycle, apoptosis, and metabolism in various human cancers. MicroRNAs (miRNAs) are powerful post‐transcriptional gene regulators that function through translational repression or transcript destabilization. Therefore, we aimed to identify whether a close relationship exists between PIM1 and miRNAs. PIM1 protein levels and mRNA levels were significantly upregulated in astrocytoma tissues, indicating the oncogenic role of PIM1 in astrocytoma. Further bioinformatics analysis indicated that miR‐124‐3p targeted the 3′‐UTR of PIM1. We also observed an inverse correlation between the miR‐124‐3p levels and PIM1 protein or mRNA levels in astrocytoma samples. Next, we experimentally confirmed that miR‐124‐3p directly recognizes the 3′‐UTR of the PIM1 transcript and regulates PIM1 expression at both the protein and mRNA levels. Furthermore, we examined the biological consequences of miR‐124‐3p targeting PIM1 in vitro. We showed that the repression of PIM1 in astrocytoma cancer cells by miR‐124‐3p suppressed proliferation, invasion, and aerobic glycolysis and promoted apoptosis. We observed that the restoration or inhibition of PIM1 activity resulted in effects that were similar to those induced by miR‐124‐3p inhibitors or mimics in cancer cells. Finally, overexpression of PIM1 rescued the inhibitory effects of miR‐124‐3p. In summary, these findings aid in understanding the tumor‐suppressive role of miR‐124‐3p in astrocytoma pathogenesis through the inhibition of PIM1 translation.
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Affiliation(s)
- Danni Deng
- Modern Medical Research Center, Third Affiliated Hospital of Soochow University, Changzhou, China
| | - Lei Wang
- Xuzhou Central Hospital, Affiliated Hospital of Southeast University, Xuzhou, China
| | - Yao Chen
- Biopharm Industry Service Center, Changzhou Center for Biotech Development, Changzhou, China
| | - Bowen Li
- Modern Medical Research Center, Third Affiliated Hospital of Soochow University, Changzhou, China
| | - Lian Xue
- Modern Medical Research Center, Third Affiliated Hospital of Soochow University, Changzhou, China
| | - Naiyuan Shao
- Department of Neurosurgery, Third Affiliated Hospital of Soochow University, Changzhou, China
| | - Qiang Wang
- Department of Neurosurgery, Third Affiliated Hospital of Soochow University, Changzhou, China
| | - Xiwei Xia
- Department of Neurosurgery, Third Affiliated Hospital of Soochow University, Changzhou, China
| | - Yilin Yang
- Modern Medical Research Center, Third Affiliated Hospital of Soochow University, Changzhou, China.,Department of Neurosurgery, Third Affiliated Hospital of Soochow University, Changzhou, China
| | - Feng Zhi
- Modern Medical Research Center, Third Affiliated Hospital of Soochow University, Changzhou, China
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The role of brachytherapy in the treatment of glioblastoma multiforme. Neurosurg Rev 2016; 40:195-211. [PMID: 27180560 DOI: 10.1007/s10143-016-0727-6] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2014] [Revised: 03/06/2016] [Accepted: 03/07/2016] [Indexed: 12/12/2022]
Abstract
Brachytherapy (BT) for glioblastoma multiforme (GBM) involves the use of radioactive isotopes to deliver ionizing radiation directly into the tumor bed. Its application as a means to prolong survival in GBM patients over the past few decades has come with variable success. The objective of this review is to describe the utility of BT in GBM, and to report the outcomes and adverse events associated with its use in different multimodal treatment approaches. A search of the literature was conducted using the PubMed database. The most recent search was performed in September 2015. Thirty-two series involving 1571 patients were included in our review. The longest median overall survival (MOS) following BT for newly diagnosed GBM reached 28.5 months. Overall, 1-, 2-, and 3-year survival rates were 46-89 %, 20-57 %, and 14-27 %. For recurrent GBM, the longest reported MOS after BT was 15.9 months. One-, 2- and 3-year survival rates for recurrent GBM were 10-66 %, 3-23 %, and 9-15 %. Adverse events were reported in 27 % of patients. Reoperation for radiation necrosis occurred in 4 and 27 % of patients following low- and high-dose rate BT, respectively. BT is a feasible option for extending survival in carefully selected GBM patients. As patient outcomes and overall survival improve with more aggressive radiotherapy, so does the risk of radiation-related complications. The most effective use of BT is likely as a part of multimodal treatment with other novel therapies.
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YANG JINGHUI, YANG QIWEI, YU JING, LI XIMENG, YU SHAN, ZHANG XUEWEN. SPOCK1 promotes the proliferation, migration and invasion of glioma cells through PI3K/AKT and Wnt/β-catenin signaling pathways. Oncol Rep 2016; 35:3566-76. [DOI: 10.3892/or.2016.4757] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Accepted: 01/30/2016] [Indexed: 11/05/2022] Open
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27
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Xiao B, Zhou X, Ye M, Lv S, Wu M, Liao C, Han L, Kang C, Zhu X. MicroRNA‑566 modulates vascular endothelial growth factor by targeting Von Hippel‑Landau in human glioblastoma in vitro and in vivo. Mol Med Rep 2015; 13:379-85. [PMID: 26572705 DOI: 10.3892/mmr.2015.4537] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2014] [Accepted: 09/22/2015] [Indexed: 11/05/2022] Open
Abstract
MicroRNAs (miRNAs) are able to function as either oncogenes or tumor suppressor genes in tumorigenesis, and have been proposed as novel targets for anticancer treatment. It has previously been suggested that miRNAs have important roles in the initiation and progression of glioblastoma; however, the effects of miR‑566 in glioblastoma are currently unclear. The present study aimed to demonstrate that miR-566 can modulate vascular endothelial growth factor (VEGF) by targeting Von Hippel‑Lindau (VHL) in glioblastoma in vitro and in vivo by inhibiting the expression of miR-566. Glioblastoma is a highly vascularized tumor, which exhibits increased expression of angiogenic factors, including VEGF, which are crucial in the process of glioblastoma angiogenesis. Existing research has demonstrated that VHL is a tumor suppressor gene that is associated with various tumors. In addition, VHL is able to regulate the expression of VEGF by promoting the degradation of hypoxia‑inducible factor‑1α via ubiquitination. It has been predicted, using bioinformatics, that the VHL gene is regulated by miR‑566. Therefore, the present study hypothesized that miR‑566 may regulate VEGF expression by targeting VHL during the angiogenic process of glioblastoma multiforme. The results of the present study demonstrated that inhibition of miR‑566 expression increases the expression levels of VHL, decreases the expression levels of VEGF, and inhibits the invasive and migratory abilities of glioblastoma. In addition, VHL was identified as a functional target of miR‑566.
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Affiliation(s)
- Bing Xiao
- Department of Maxillary Facial and Otorhinolaryngology Head & Neck Surgery, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Tianjin Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, P.R. China
| | - Xuan Zhou
- Department of Maxillary Facial and Otorhinolaryngology Head & Neck Surgery, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Tianjin Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, P.R. China
| | - Minhua Ye
- Department of Neurosurgery, Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Shigang Lv
- Department of Neurosurgery, Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Miaojing Wu
- Department of Neurosurgery, Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Changchun Liao
- Department of Neurosurgery, Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Lei Han
- Department of Neurosurgery, Tianjin Medical University General Hospital, Laboratory of Neuro‑Oncology, Tianjin 300052, P.R. China
| | - Chunsheng Kang
- Department of Neurosurgery, Tianjin Medical University General Hospital, Laboratory of Neuro‑Oncology, Tianjin 300052, P.R. China
| | - Xingen Zhu
- Department of Neurosurgery, Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
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miR-137 acts as a tumor suppressor in astrocytoma by targeting RASGRF1. Tumour Biol 2015; 37:3331-40. [DOI: 10.1007/s13277-015-4110-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Accepted: 09/20/2015] [Indexed: 10/23/2022] Open
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29
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CHEN XIONG, ZHANG YINGYING, SHI YINGYING, LIAN HAIWEI, TU HUILIN, HAN SONG, PENG BIWEN, LIU WANHONG, HE XIAOHUA. miR-873 acts as a novel sensitizer of glioma cells to cisplatin by targeting Bcl-2. Int J Oncol 2015; 47:1603-11. [DOI: 10.3892/ijo.2015.3143] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Accepted: 08/10/2015] [Indexed: 11/05/2022] Open
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30
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Zhi F, Wang Q, Xue L, Shao N, Wang R, Deng D, Wang S, Xia X, Yang Y. The Use of Three Long Non-Coding RNAs as Potential Prognostic Indicators of Astrocytoma. PLoS One 2015; 10:e0135242. [PMID: 26252651 PMCID: PMC4529097 DOI: 10.1371/journal.pone.0135242] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2014] [Accepted: 07/20/2015] [Indexed: 01/01/2023] Open
Abstract
Long noncoding RNAs (lncRNAs) are pervasively transcribed and play a key role in tumorigenesis. The aim of the study was to determine the lncRNA expression profile in astrocytomas and to assess its potential clinical value. We performed a three-step analysis to establish the lncRNA profile for astrocytoma: a) the lncRNA expression was examined on 3 astrocytomas as well as 3 NATs (normal adjacent tissues) using the lncRNA microarray; b) the top-hits were validated in 40 astrocytomas (WHO grade II-IV) by quantitative real time-PCR (qRT-PCR); c) the hits with significant differences were re-evaluated using qRT-PCR in 90 astrocytomas. Finally, 7 lncRNAs were found to have a significantly different expression profile in astrocytoma samples compared to the NAT samples. Unsupervised clustering analysis further revealed the potential of the 7-lncRNA profile to differentiate between tumors and NAT samples. The upregulation of ENST00000545440 and NR_002809 was associated with advanced clinical stages of astrocytoma. Using Kaplan-Meier survival analysis, we showed that the low expression of BC002811 or XLOC_010967, or the high expression of NR_002809 was significantly associated with poor patient survival. Moreover, Cox proportional hazard regression analysis revealed that this prognostic impact was independent of other clinicopathological factors. Our results indicate that the lncRNA profile may be a potential prognostic biomarker for the prediction of post-surgical outcomes.
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Affiliation(s)
- Feng Zhi
- Modern Medical Research Center, Third Affiliated Hospital of Soochow University, Changzhou, 213000, Jiangsu, China
| | - Qiang Wang
- Department of Neurosurgery, Third Affiliated Hospital of Soochow University, Changzhou, 213000, Jiangsu, China
| | - Lian Xue
- Modern Medical Research Center, Third Affiliated Hospital of Soochow University, Changzhou, 213000, Jiangsu, China
| | - Naiyuan Shao
- Department of Neurosurgery, Third Affiliated Hospital of Soochow University, Changzhou, 213000, Jiangsu, China
| | - Rong Wang
- Modern Medical Research Center, Third Affiliated Hospital of Soochow University, Changzhou, 213000, Jiangsu, China
| | - Danni Deng
- Modern Medical Research Center, Third Affiliated Hospital of Soochow University, Changzhou, 213000, Jiangsu, China
| | - Suinuan Wang
- Department of Neurosurgery, Third Affiliated Hospital of Soochow University, Changzhou, 213000, Jiangsu, China
| | - Xiwei Xia
- Department of Neurosurgery, Third Affiliated Hospital of Soochow University, Changzhou, 213000, Jiangsu, China
- * E-mail: (YY); (XX)
| | - Yilin Yang
- Modern Medical Research Center, Third Affiliated Hospital of Soochow University, Changzhou, 213000, Jiangsu, China
- * E-mail: (YY); (XX)
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31
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Kleinberg LR, Stieber V, Mikkelsen T, Judy K, Weingart J, Barnett G, Olson J, Desideri S, Ye X, Grossman S. Outcome of Adult Brain Tumor Consortium (ABTC) prospective dose-finding trials of I-125 balloon brachytherapy in high-grade gliomas: challenges in clinical trial design and technology development when MRI treatment effect and recurrence appear similar. ACTA ACUST UNITED AC 2015; 4:235-241. [PMID: 27695605 DOI: 10.1007/s13566-015-0210-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
OBJECTIVES The aim of this study is to define the maximal safe radiation dose to guide further study of the GliaSite balloon brachytherapy (GSBT) system in untreated newly diagnosed glioblastoma (NEW-GBM) and recurrent high-grade glioma (REC-HGG). GBST is a balloon placed in the resection cavity and later filled through a subcutaneous port with liquid I-125 Iotrex, providing radiation doses that diminish uniformly with distance from the balloon surface. METHODS The Adult Brain Tumor Consortium initiated prospective dose-finding studies to determine maximum tolerated dose in NEW-GBM treated before standard RT or after surgery for REC-HGG. Patients were inevaluable if there was progression before the 90-day posttreatment toxicity evaluation point. RESULTS Ten NEW-GBM patients had the balloon placed, and 2/10 reached the 90 day timepoint. Five REC-HGG enrolled and two were assessable at the 90-day evaluation endpoint. Imaging progression occurred before 90-day evaluation in 7/12 treated patients. The trials were closed as too few patients were assessable to allow dose escalation, although no dose-limiting toxicities (DLTs) were observed. Median survival from treatment was 15.3 months (95 % CI 7.1-23.6) for NEW-GBM and 12.8 months (95 % CI 4.2-20.9) for REC-HGG. CONCLUSION These trials failed to determine a maximum tolerated dose (MTD) for further testing as early imaging changes, presumed to be progression, were common and interfered with the assessment of treatment-related toxicity. The survival outcomes in these and other related studies, although based on small populations, suggest that GSBT may be worthy of further study using clinical and survival endpoints, rather than standard imaging results. The implications for local therapy development are discussed.
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Affiliation(s)
- L R Kleinberg
- Department of Radiation Oncology and Molecular Radiation Sciences, Sidney Kimmel Cancer Center, Johns Hopkins University, 401 North Broadway, Suite 1440, Baltimore, MD 21231, USA
| | - V Stieber
- Piedmont Radiation Oncology, Winston-Salem, NC, USA
| | | | - K Judy
- Thomas Jefferson University Hospital, Philadelphia, PA, USA
| | - J Weingart
- Department of Radiation Oncology and Molecular Radiation Sciences, Sidney Kimmel Cancer Center, Johns Hopkins University, 401 North Broadway, Suite 1440, Baltimore, MD 21231, USA
| | - G Barnett
- Cleveland Clinic, Cleveland, OH, USA
| | - J Olson
- Emory University, Atlanta, USA
| | - S Desideri
- Department of Radiation Oncology and Molecular Radiation Sciences, Sidney Kimmel Cancer Center, Johns Hopkins University, 401 North Broadway, Suite 1440, Baltimore, MD 21231, USA
| | - X Ye
- Department of Radiation Oncology and Molecular Radiation Sciences, Sidney Kimmel Cancer Center, Johns Hopkins University, 401 North Broadway, Suite 1440, Baltimore, MD 21231, USA
| | - S Grossman
- Department of Radiation Oncology and Molecular Radiation Sciences, Sidney Kimmel Cancer Center, Johns Hopkins University, 401 North Broadway, Suite 1440, Baltimore, MD 21231, USA
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Chen W, Qi J, Bao G, Wang T, Du CW, Wang MD. Emerging role of microRNA-27a in human malignant glioma cell survival via targeting of prohibitin. Mol Med Rep 2015; 12:1515-23. [PMID: 25777779 DOI: 10.3892/mmr.2015.3475] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2014] [Accepted: 02/05/2015] [Indexed: 11/06/2022] Open
Abstract
MicroRNAs (miRs) function as oncogenes and tumor suppressors, and have roles in most cellular processes. To date, the possible role of miR-27a, which is part of the miR-23a/27a/24-2 cluster, in malignant gliomas has remained elusive. Therefore, the present study aimed to explore the role of miR-27a in glioma and its potential target. Through transfection with miR-27a inhibitor or oligonucleotide mimics, the impact of miR-27a silencing or overexpression on the growth, apoptosis, cell cycle and invasiveness of U251 and U87MG cells was examined in vitro. The present study initially identified the potential target of miR-27a in glioma cells through a bioinformatics analysis, which was used for screening of the literature on the proteomics of gliomas. Prohibitin (PHB) was then confirmed as a target by absolute luciferase reporter assays, quantitative real-time polymerase chain reaction and western blot analysis. Treatment with miR-27a mimics oligonucleotides suppressed U251 cell proliferation, promoted apoptosis by inducing G2/M phase arrest, and impaired the invasive potential of U251 cells in vitro. In addition, miR-27a expression was downregulated in glioma tissues. A PHB-3'-untranslated region luciferase reporter assay confirmed PHB as a direct target gene of miR-27a. PHB mRNA expression was reversely correlated with levels of miR-27a in U251 cells. Overexpression of miR-27a in U251 cells at 72 h and 96 h post‑transfection with miR-27a mimics significantly decreased PHB protein expression by 17.2% and 43.9%, respectively. In conclusion, miR-27a was shown to be a significant tumor suppressor by targeting and decreasing PHB protein expression in glioma U251 cells. miR-27a targeting of PHB may be a novel potential therapeutic strategy for glioma.
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Affiliation(s)
- Wei Chen
- Department of Neurosurgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Jun Qi
- Institute of Transfusion Research, Shaanxi Blood Center, Xi'an, Shaanxi 710061, P.R. China
| | - Gang Bao
- Department of Neurosurgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Tuo Wang
- Department of Neurosurgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Chang-Wang Du
- Department of Neurosurgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Mao-De Wang
- Department of Neurosurgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
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33
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Jia G, Wang Q, Wang R, Deng D, Xue L, Shao N, Zhang Y, Xia X, Zhi F, Yang Y. Tubeimoside-1 induces glioma apoptosis through regulation of Bax/Bcl-2 and the ROS/Cytochrome C/Caspase-3 pathway. Onco Targets Ther 2015; 8:303-11. [PMID: 25674005 PMCID: PMC4321652 DOI: 10.2147/ott.s76063] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Background Tubeimoside-1 (TBMS1) is a natural compound isolated from tubeimoside, which has been widely used as a traditional Chinese herbal medicine. The purpose of the present study is to investigate the anti-tumor effect and the underling mechanism of TBMS1 on glioma cancer cells. Methods The MTT assay was performed to evaluate the effect of TBMS1 on glioma cell proliferation. The fluorescent microscopy and flow cytometry analysis were performed to evaluate the effect of TBMS1 on glioma cell apoptosis. The Western blot analysis was used to evaluate the protein change. Results TBMS1 inhibited glioma cancer cell proliferation in a dose- and time-dependent manner. Fluorescent microscopy and flow cytometry analysis demonstrated that TBMS1 induced glioma cell apoptosis in a concentration-dependent manner. Western blotting showed that TBMS1 induced apoptosis by increasing the expression of Bax and downregulating the level of Bcl-2. Furthermore, we found that TBMS1 induced apoptosis by increasing the concentration of reactive oxygen species through the release of Cytochrome C and activation of Caspase-3. Conclusion These findings indicate that TBMS1 may be developed as a possible therapeutic agent for the management of glioma.
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Affiliation(s)
- Geng Jia
- Department of Neurosurgery, Third Affiliated Hospital of Soochow University, Jiangsu, People's Republic of China
| | - Qiang Wang
- Modern Medical Research Center, Third Affiliated Hospital of Soochow University, Jiangsu, People's Republic of China
| | - Rong Wang
- Modern Medical Research Center, Third Affiliated Hospital of Soochow University, Jiangsu, People's Republic of China
| | - Danni Deng
- Modern Medical Research Center, Third Affiliated Hospital of Soochow University, Jiangsu, People's Republic of China
| | - Lian Xue
- Modern Medical Research Center, Third Affiliated Hospital of Soochow University, Jiangsu, People's Republic of China
| | - Naiyuan Shao
- Department of Neurosurgery, Third Affiliated Hospital of Soochow University, Jiangsu, People's Republic of China
| | - Yi Zhang
- Department of Neurosurgery, Third Affiliated Hospital of Soochow University, Jiangsu, People's Republic of China
| | - Xiwei Xia
- Department of Neurosurgery, Third Affiliated Hospital of Soochow University, Jiangsu, People's Republic of China
| | - Feng Zhi
- Modern Medical Research Center, Third Affiliated Hospital of Soochow University, Jiangsu, People's Republic of China
| | - Yilin Yang
- Department of Neurosurgery, Third Affiliated Hospital of Soochow University, Jiangsu, People's Republic of China ; Modern Medical Research Center, Third Affiliated Hospital of Soochow University, Jiangsu, People's Republic of China
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Dehdashti AR, Sharma S, Laperriere N, Bernstein M. Coincidence vs Cause: Cure in Three Glioblastoma Patients Treated with Brachytherapy. Can J Neurol Sci 2014; 34:339-42. [PMID: 17803034 DOI: 10.1017/s031716710000679x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Background:Very long term survival after diagnosis of malignant glioma has been described in individual case reports. Survival of more than 10 years is extremely rare, especially when identified in 3 out of 71 patients assigned to one arm of a randomized controlled trial.Patients:Three patients survived 11, 16, and 18 years following the diagnosis of glioblastoma and treatment with surgery, conventional fractionated radiation, and high-activity iodine-125 boost brachytherapy as part of a randomized controlled trial.Conclusion:Despite this apparent cause and effect relationship, statistical analysis shows no relationship between these cures and treatment with brachytherapy. Cure of glioblastoma remains rare.
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Affiliation(s)
- Amir R Dehdashti
- Division of Neurosurgery, Toronto Western Hospital, University of Toronto, Toronto, Ontario, Canada
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35
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Zhi F, Wang Q, Deng D, Shao N, Wang R, Xue L, Wang S, Xia X, Yang Y. MiR-181b-5p downregulates NOVA1 to suppress proliferation, migration and invasion and promote apoptosis in astrocytoma. PLoS One 2014; 9:e109124. [PMID: 25299073 PMCID: PMC4192361 DOI: 10.1371/journal.pone.0109124] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2014] [Accepted: 08/28/2014] [Indexed: 11/30/2022] Open
Abstract
MicroRNAs (miRNAs) are small, short noncoding RNAs that modulate the expression of numerous genes by targeting their mRNA. Numerous abnormal miRNA expression patterns are observed in various human malignancies, and certain miRNAs can act as oncogenes or tumor suppressors. Astrocytoma, the most common neuroepithelial cancer, represents the majority of malignant brain tumors in humans. In our previous studies, we found that the downregulation of miR-181b-5p in astrocytomas is associated with a poor prognosis. The aim of the present study was to investigate the functional role of miR-181b-5p and its possible target genes. miR-181b-5p was significantly downregulated in astrocytoma specimens, and the reduced expression of miR-181b-5p was inversely correlated with the clinical stage. The ectopic expression of miR-181b-5p inhibited proliferation, migration and invasion and induced apoptosis in astrocytoma cancer cells in vitro. The NOVA1 (neuro-oncological ventral antigen 1) gene was further identified as a novel direct target of miR-181b-5p. Specifically, miR-181b-5p bound directly to the 3'-untranslated region (UTR) of NOVA1 and suppressed its expression. In clinical specimens, NOVA1 was overexpressed, and its protein levels were inversely correlated with miR-181b-5p expression. Furthermore, the changing level of NOVA1 was significantly associated with a poor survival outcome. Similar to restoring miR-181b-5p expression, downregulating NOVA1 inhibited cell growth, migration and invasion. Overexpression of NOVA1 reversed the inhibitory effects of miR-181b-5p. Our results indicate that miR-181b-5p is a tumor suppressor in astrocytoma that inhibits tumor progression by targeting NOVA1. These findings suggest that miR-181b-5p may serve as a novel therapeutic target for astrocytoma.
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Affiliation(s)
- Feng Zhi
- Modern Medical Research Center, Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, China
| | - Qiang Wang
- Department of Neurosurgery, Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, China
| | - Danni Deng
- Modern Medical Research Center, Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, China
| | - Naiyuan Shao
- Department of Neurosurgery, Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, China
| | - Rong Wang
- Modern Medical Research Center, Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, China
| | - Lian Xue
- Modern Medical Research Center, Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, China
| | - Suinuan Wang
- Department of Neurosurgery, Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, China
| | - Xiwei Xia
- Department of Neurosurgery, Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, China
| | - Yilin Yang
- Modern Medical Research Center, Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, China
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de la Puente P, Azab AK. Delivery systems for brachytherapy. J Control Release 2014; 192:19-28. [DOI: 10.1016/j.jconrel.2014.06.057] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2014] [Revised: 06/26/2014] [Accepted: 06/27/2014] [Indexed: 11/29/2022]
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Zhi F, Shao N, Wang R, Deng D, Xue L, Wang Q, Zhang Y, Shi Y, Xia X, Wang S, Lan Q, Yang Y. Identification of 9 serum microRNAs as potential noninvasive biomarkers of human astrocytoma. Neuro Oncol 2014; 17:383-91. [PMID: 25140035 DOI: 10.1093/neuonc/nou169] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2013] [Accepted: 07/14/2014] [Indexed: 01/18/2023] Open
Abstract
BACKGROUND Circulating microRNAs (miRNAs) are emerging as promising biomarkers for human cancer. In the current study, we investigated the potential use of serum miRNAs as biomarkers for diagnosis and prognosis in a cohort of Chinese astrocytoma patients. METHODS An initial screening of the circulating miRNA expression profile was performed on pooled serum samples from 10 preoperative patients and 10 healthy controls using a TaqMan low-density array. The selected serum miRNAs were then validated in 90 preoperative patients and 110 healthy controls who were randomly divided into a training set and a validation set. An additional double-blind test was performed in 50 astrocytomas and 50 controls to assess the serum miRNA-based biomarker accuracy in predicting astrocytoma. The differentially expressed miRNAs were evaluated in paired preoperative and postoperative serum samples from 73 astrocytoma patients. The correlation of the miRNA levels with survival in astrocytoma samples was estimated. RESULTS Nine serum miRNAs were significantly increased in the astrocytoma patients. The biomarker composed of these 9 miRNAs had high sensitivity, specificity, and accuracy. These 9 miRNAs were markedly decreased in the serum after operation. The upregulation of miR-20a-5p, miR-106a-5p, and miR-181b-5p was associated with advanced clinical stages of astrocytoma. Kaplan-Meier survival analysis showed that the high expression of miR-19a-3p, miR-106a-5p, and miR-181b-5p was significantly associated with poor patient survival. Finally, the combined 3-miRNAs panel was an important prognostic predictor, independent of other clinicopathological factors. CONCLUSIONS The results indicated the potential of serum miRNAs as novel diagnostic and prognostic biomarkers for human astrocytoma.
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Affiliation(s)
- Feng Zhi
- Modern Medical Research Center, Third Affiliated Hospital of Soochow University, Changzhou, China (F.Z., D.D., L.X., Y.Y.); Department of Neurosurgery, Third Affiliated Hospital of Soochow University, Changzhou, China (N.S., R.W., Q.W., Y.Z., Y.S., X.X., S.W.); Department of Neurosurgery, Second Affiliated Hospital of Soochow University, Suzhou, China (N.S., Q.L.)
| | - Naiyuan Shao
- Modern Medical Research Center, Third Affiliated Hospital of Soochow University, Changzhou, China (F.Z., D.D., L.X., Y.Y.); Department of Neurosurgery, Third Affiliated Hospital of Soochow University, Changzhou, China (N.S., R.W., Q.W., Y.Z., Y.S., X.X., S.W.); Department of Neurosurgery, Second Affiliated Hospital of Soochow University, Suzhou, China (N.S., Q.L.)
| | - Rong Wang
- Modern Medical Research Center, Third Affiliated Hospital of Soochow University, Changzhou, China (F.Z., D.D., L.X., Y.Y.); Department of Neurosurgery, Third Affiliated Hospital of Soochow University, Changzhou, China (N.S., R.W., Q.W., Y.Z., Y.S., X.X., S.W.); Department of Neurosurgery, Second Affiliated Hospital of Soochow University, Suzhou, China (N.S., Q.L.)
| | - Danni Deng
- Modern Medical Research Center, Third Affiliated Hospital of Soochow University, Changzhou, China (F.Z., D.D., L.X., Y.Y.); Department of Neurosurgery, Third Affiliated Hospital of Soochow University, Changzhou, China (N.S., R.W., Q.W., Y.Z., Y.S., X.X., S.W.); Department of Neurosurgery, Second Affiliated Hospital of Soochow University, Suzhou, China (N.S., Q.L.)
| | - Lian Xue
- Modern Medical Research Center, Third Affiliated Hospital of Soochow University, Changzhou, China (F.Z., D.D., L.X., Y.Y.); Department of Neurosurgery, Third Affiliated Hospital of Soochow University, Changzhou, China (N.S., R.W., Q.W., Y.Z., Y.S., X.X., S.W.); Department of Neurosurgery, Second Affiliated Hospital of Soochow University, Suzhou, China (N.S., Q.L.)
| | - Qiang Wang
- Modern Medical Research Center, Third Affiliated Hospital of Soochow University, Changzhou, China (F.Z., D.D., L.X., Y.Y.); Department of Neurosurgery, Third Affiliated Hospital of Soochow University, Changzhou, China (N.S., R.W., Q.W., Y.Z., Y.S., X.X., S.W.); Department of Neurosurgery, Second Affiliated Hospital of Soochow University, Suzhou, China (N.S., Q.L.)
| | - Yi Zhang
- Modern Medical Research Center, Third Affiliated Hospital of Soochow University, Changzhou, China (F.Z., D.D., L.X., Y.Y.); Department of Neurosurgery, Third Affiliated Hospital of Soochow University, Changzhou, China (N.S., R.W., Q.W., Y.Z., Y.S., X.X., S.W.); Department of Neurosurgery, Second Affiliated Hospital of Soochow University, Suzhou, China (N.S., Q.L.)
| | - Yimin Shi
- Modern Medical Research Center, Third Affiliated Hospital of Soochow University, Changzhou, China (F.Z., D.D., L.X., Y.Y.); Department of Neurosurgery, Third Affiliated Hospital of Soochow University, Changzhou, China (N.S., R.W., Q.W., Y.Z., Y.S., X.X., S.W.); Department of Neurosurgery, Second Affiliated Hospital of Soochow University, Suzhou, China (N.S., Q.L.)
| | - Xiwei Xia
- Modern Medical Research Center, Third Affiliated Hospital of Soochow University, Changzhou, China (F.Z., D.D., L.X., Y.Y.); Department of Neurosurgery, Third Affiliated Hospital of Soochow University, Changzhou, China (N.S., R.W., Q.W., Y.Z., Y.S., X.X., S.W.); Department of Neurosurgery, Second Affiliated Hospital of Soochow University, Suzhou, China (N.S., Q.L.)
| | - Suinuan Wang
- Modern Medical Research Center, Third Affiliated Hospital of Soochow University, Changzhou, China (F.Z., D.D., L.X., Y.Y.); Department of Neurosurgery, Third Affiliated Hospital of Soochow University, Changzhou, China (N.S., R.W., Q.W., Y.Z., Y.S., X.X., S.W.); Department of Neurosurgery, Second Affiliated Hospital of Soochow University, Suzhou, China (N.S., Q.L.)
| | - Qing Lan
- Modern Medical Research Center, Third Affiliated Hospital of Soochow University, Changzhou, China (F.Z., D.D., L.X., Y.Y.); Department of Neurosurgery, Third Affiliated Hospital of Soochow University, Changzhou, China (N.S., R.W., Q.W., Y.Z., Y.S., X.X., S.W.); Department of Neurosurgery, Second Affiliated Hospital of Soochow University, Suzhou, China (N.S., Q.L.)
| | - Yilin Yang
- Modern Medical Research Center, Third Affiliated Hospital of Soochow University, Changzhou, China (F.Z., D.D., L.X., Y.Y.); Department of Neurosurgery, Third Affiliated Hospital of Soochow University, Changzhou, China (N.S., R.W., Q.W., Y.Z., Y.S., X.X., S.W.); Department of Neurosurgery, Second Affiliated Hospital of Soochow University, Suzhou, China (N.S., Q.L.)
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The Clinical Utility of Matrix Metalloproteinase 9 in Evaluating Pathological Grade and Prognosis of Glioma Patients: A Meta-Analysis. Mol Neurobiol 2014; 52:38-44. [PMID: 25108671 DOI: 10.1007/s12035-014-8850-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2014] [Accepted: 07/31/2014] [Indexed: 12/14/2022]
Abstract
In the recent years, matrix metalloproteinase 9 (MMP-9) has been focused on as an indicator of glioma grade and prognosis, especially in China. However, all results resulted in many conflicts. So, it is necessary to conduct a meta-analysis to secure a convincing correlation between MMP-9 and grade and prognosis. Eligible studies were included via multiple searches, and then odds ratios (ORs) and hazard ratios (HRs) with 95% confidence intervals (95% CIs) were estimated. Funnel plots were available for evaluation of publication bias. In addition, heterogeneity and sensitivity were also analyzed. In the present meta-analysis, 23 articles were allowed for inclusion with total 1,635 patients. Coincidentally, all studies were conducted in Chinese populations. High MMP-9 expression in gliomas was closely associated with high WHO grade (III+IV) (n = 22, OR = 5.25, 95% CI = 4.09-6.73; p = 0.000), while MMP-9 expression did not correlate to age (n = 4, OR = 1.02, 95 % CI = 0.67-1.54; p = 0.929) and gender (n = 5, OR = 0.91, 95% CI = 0.63-1.33; p = 0.632). Besides, overall survival analysis from two articles revealed MMP-9 expression significantly predicted 5-year-OS (HR = 6.44, 95% CI = 3.88-10.70; p = 0.000) in glioma patients. No heterogeneity and publication bias were observed across all studies. To conclude, this meta-analysis suggests MMP-9 is potently associated with high grade and poor 5 years prognosis, and MMP-9 test of glioma tissues should be established in department of pathology as a routine in clinical practice.
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Murphy M, Parney IF. Clinical trials in neurosurgical oncology. J Neurooncol 2014; 119:569-76. [PMID: 25106866 DOI: 10.1007/s11060-014-1569-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2014] [Accepted: 07/23/2014] [Indexed: 10/24/2022]
Abstract
Brain tumors such as diffuse infiltrating gliomas continue to represent a major clinical challenge. Overall survival for patients diagnosed with glioblastoma, the most common primary brain tumor, remains less than 2 years despite intensive multimodal therapy with surgery, radiation, and chemotherapy. However, advances have been made in standard therapies and novel treatments that are showing great potential. These advances reflect careful study performed in the context of clinical trials. Neurosurgeons have played and will continue to play key parts in these studies. In this manuscript, we review clinical trials in neuro-oncology from a neurosurgical point of view and discuss potential roles for neurosurgeons in advancing glioma therapy in the future.
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Affiliation(s)
- Meghan Murphy
- Department of Neurological Surgery, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
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Woodworth GF, Dunn GP, Nance EA, Hanes J, Brem H. Emerging insights into barriers to effective brain tumor therapeutics. Front Oncol 2014; 4:126. [PMID: 25101239 PMCID: PMC4104487 DOI: 10.3389/fonc.2014.00126] [Citation(s) in RCA: 107] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2014] [Accepted: 05/13/2014] [Indexed: 12/27/2022] Open
Abstract
There is great promise that ongoing advances in the delivery of therapeutics to the central nervous system (CNS) combined with rapidly expanding knowledge of brain tumor patho-biology will provide new, more effective therapies. Brain tumors that form from brain cells, as opposed to those that come from other parts of the body, rarely metastasize outside of the CNS. Instead, the tumor cells invade deep into the brain itself, causing disruption in brain circuits, blood vessel and blood flow changes, and tissue swelling. Patients with the most common and deadly form, glioblastoma (GBM) rarely live more than 2 years even with the most aggressive treatments and often with devastating neurological consequences. Current treatments include maximal safe surgical removal or biopsy followed by radiation and chemotherapy to address the residual tumor mass and invading tumor cells. However, delivering effective and sustained treatments to these invading cells without damaging healthy brain tissue is a major challenge and focus of the emerging fields of nanomedicine and viral and cell-based therapies. New treatment strategies, particularly those directed against the invasive component of this devastating CNS disease, are sorely needed. In this review, we (1) discuss the history and evolution of treatments for GBM, (2) define and explore three critical barriers to improving therapeutic delivery to invasive brain tumors, specifically, the neuro-vascular unit as it relates to the blood brain barrier, the extra-cellular space in regard to the brain penetration barrier, and the tumor genetic heterogeneity and instability in association with the treatment efficacy barrier, and (3) identify promising new therapeutic delivery approaches that have the potential to address these barriers and create sustained, meaningful efficacy against GBM.
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Affiliation(s)
- Graeme F Woodworth
- Department of Neurosurgery, University of Maryland School of Medicine , Baltimore, MD , USA ; Department of Anatomy and Neurobiology, University of Maryland School of Medicine , Baltimore, MD , USA
| | - Gavin P Dunn
- Department of Neurosurgery, Pathology and Immunology, Center for Human Immunology and Immunotherapy Programs, Washington University School of Medicine , St. Louis, MO , USA
| | - Elizabeth A Nance
- Center for Nanomedicine, Johns Hopkins University School of Medicine , Baltimore, MD , USA
| | - Justin Hanes
- Center for Nanomedicine, Johns Hopkins University School of Medicine , Baltimore, MD , USA ; Department of Ophthalmology, Johns Hopkins University School of Medicine , Baltimore, MD , USA ; Department of Neurosurgery, Johns Hopkins University School of Medicine , Baltimore, MD , USA
| | - Henry Brem
- Department of Neurosurgery, Johns Hopkins University School of Medicine , Baltimore, MD , USA
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Hadziahmetovic M, Lo SS, Clarke JW, Farace E, Cavaliere R. Palliative treatment of poor prognosis patients with malignant gliomas. Expert Rev Anticancer Ther 2014; 8:125-32. [DOI: 10.1586/14737140.8.1.125] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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42
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Na A, Haghigi N, Drummond KJ. Cerebral radiation necrosis. Asia Pac J Clin Oncol 2013; 10:11-21. [PMID: 24175987 DOI: 10.1111/ajco.12124] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/26/2013] [Indexed: 11/26/2022]
Abstract
Cerebral radiation-induced injury ranges from acute reversible edema to late irreversible radiation necrosis (RN). Cerebral RN is poorly responsive to treatment, is associated with permanent neurological deficits and occasionally progresses to death. We review the literature regarding cerebral RN after radiotherapy for various brain and head and neck lesions and discuss its clinical features, imaging characteristics, pathophysiology and treatment. For new enhancing lesions on computed tomography or magnetic resonance imaging, apart from tumor progression or recurrence, RN needs to be considered in the differential diagnosis. Further studies are required to design chemoradiotherapy protocols that are effective in treating tumors while minimizing risk of RN. Current available treatments for RN, steroid and surgery, only relieve the mass effect. None of the experimental treatments to date have consistently been shown to reverse the pathologic process of RN.
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Affiliation(s)
- Angelika Na
- Department of Neurosurgery, The Royal Melbourne Hospital, Melbourne, Victoria, Australia
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Zhi F, Zhou G, Shao N, Xia X, Shi Y, Wang Q, Zhang Y, Wang R, Xue L, Wang S, Wu S, Peng Y, Yang Y. miR-106a-5p inhibits the proliferation and migration of astrocytoma cells and promotes apoptosis by targeting FASTK. PLoS One 2013; 8:e72390. [PMID: 24013584 PMCID: PMC3754986 DOI: 10.1371/journal.pone.0072390] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2013] [Accepted: 07/09/2013] [Indexed: 01/11/2023] Open
Abstract
Astrocytomas are common malignant intracranial tumors that comprise the majority of adult primary central nervous system tumors. MicroRNAs (miRNAs) are small, non-coding RNAs (20–24 nucleotides) that post-transcriptionally modulate gene expression by negatively regulating the stability or translational efficiency of their target mRNAs. In our previous studies, we found that the downregulation of miR-106a-5p in astrocytomas is associated with poor prognosis. However, its specific gene target(s) and underlying functional mechanism(s) in astrocytomas remain unclear. In this study, we used mRNA microarray experiments to measure global mRNA expression in the presence of increased or decreased miR-106a-5p levels. We then performed bioinformatics analysis based on multiple target prediction algorithms to obtain candidate target genes that were further validated by computational predictions, western blot analysis, quantitative real-time PCR, and the luciferase reporter assay. Fas-activated serine/threonine kinase (FASTK) was identified as a direct target of miR-106a-5p. In human astrocytomas, miR-106a-5p is downregulated and negatively associated with clinical staging, whereas FASTK is upregulated and positively associated with advanced clinical stages, at both the protein and mRNA levels. Furthermore, Kaplan-Meier analysis revealed that the reduced expression of miR-106a-5p or the increased expression of FASTK is significantly associated with poor survival outcome. These results further supported the finding that FASTK is a direct target gene of miR-106a-5p. Next, we explored the function of miR-106a-5p and FASTK during astrocytoma progression. Through gain-of-function and loss-of-function studies, we demonstrated that miR-106a-5p can significantly inhibit cell proliferation and migration and can promote cell apoptosis in vitro. The knockdown of FASTK induced similar effects on astrocytoma cells as those induced by the overexpression of miR-106a-5p. These observations suggest that miR-106a-5p functions as a tumor suppressor during the development of astrocytomas by targeting FASTK.
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Affiliation(s)
- Feng Zhi
- Modern Medical Research Center, Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, China
| | - Guangxin Zhou
- Department of Orthopedics, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, Jiangsu, China
| | - Naiyuan Shao
- Department of Neurosurgery, Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, China
| | - Xiwei Xia
- Department of Neurosurgery, Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, China
| | - Yimin Shi
- Department of Neurosurgery, Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, China
| | - Qiang Wang
- Department of Neurosurgery, Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, China
| | - Yi Zhang
- Department of Neurosurgery, Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, China
| | - Rong Wang
- Modern Medical Research Center, Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, China
| | - Lian Xue
- Modern Medical Research Center, Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, China
| | - Suinuan Wang
- Department of Neurosurgery, Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, China
| | - Sujia Wu
- Department of Orthopedics, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, Jiangsu, China
- * E-mail: (YY); (YP); (SW)
| | - Ya Peng
- Department of Neurosurgery, Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, China
- * E-mail: (YY); (YP); (SW)
| | - Yilin Yang
- Modern Medical Research Center, Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, China
- * E-mail: (YY); (YP); (SW)
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Waters JD, Rose B, Gonda DD, Scanderbeg DJ, Russell M, Alksne JF, Murphy K, Carter BS, Lawson J, Chen CC. Immediate post-operative brachytherapy prior to irradiation and temozolomide for newly diagnosed glioblastoma. J Neurooncol 2013; 113:467-77. [PMID: 23673513 DOI: 10.1007/s11060-013-1139-x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2012] [Accepted: 04/27/2013] [Indexed: 10/26/2022]
Abstract
To determine whether immediate post-operative brachytherapy can be safely applied to newly diagnosed glioblastomas to retard tumor progression prior to initiation of external beam radiation therapy (EBRT) and temozolomide. Between 1996 and 2011, eleven patients underwent implantation of GliaSite (n = 9) or MammoSite (n = 2) at the time of surgical resection. Brachytherapy was carried out on post-operative day 2-3, with 45-60 Gy delivered to a 1 cm margin. All patients underwent subsequent standard radiation/temozolomide treatment 4-5 weeks post-irradiation. There were no wound related complications. Toxicity was observed in two patients (2/11 or 18 %), including one post-operative seizure and one case of cerebral edema that resolved after a course of steroid treatment. Immediate post-operative and pre-irradiation/temozolomide magnetic resonance imaging assessment was available for 9 of the 11 patients. Two of these nine patients (22 %) developed new regions of contrast enhancement prior to irradiation/temozolomide. This compares favorably to historical data where 53 % of patient suffer such tumor progression. While there was a trend toward improved 6 month progression free survival in the brachytherapy/temozolomide/radiation treated patients, the overall survival of these patients were comparable to historical controls. This case series demonstrates the safety of immediate post-operative brachytherapy when applied prior to EBRT and temozolomide in the treatment of newly diagnosed glioblastomas.
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Affiliation(s)
- J Dawn Waters
- Division of Neurosurgery, Center for Theoretic and Applied Neuro-Oncology, University of California, San Diego, 3855 Health Science Drive #0987, La Jolla, CA 92093-0987, USA
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Nicholas S, Mathios D, Ruzevick J, Jackson C, Yang I, Lim M. Current trends in glioblastoma multiforme treatment: radiation therapy and immune checkpoint inhibitors. Brain Tumor Res Treat 2013; 1:2-8. [PMID: 24904882 PMCID: PMC4027120 DOI: 10.14791/btrt.2013.1.1.2] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2013] [Revised: 03/20/2013] [Accepted: 04/05/2013] [Indexed: 12/27/2022] Open
Abstract
Glioblastoma multiforme (GBM) is the most common primary brain cancer. Even with aggressive combination therapy, the median life expectancy for patients with GBM remains approximately 14 months. In order to improve the outcomes of patients with GBM, the development of newer treatments is critical. The concept of using the immune system as a therapeutic option has been suggested for several decades; by harnessing the body's adaptive immune mechanisms, immunotherapy could provide a durable and targeted treatment against cancer. However, many cancers, including GBM, have developed mechanisms that protect tumor cells from being recognized and eliminated by the immune system. For new immunotherapeutic regimens to be successful, overcoming immunosuppression via immune checkpoint signaling should be taken into consideration.
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Affiliation(s)
- Sarah Nicholas
- Department of Neurosurgery, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Dimitris Mathios
- Department of Neurosurgery, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Jacob Ruzevick
- Department of Neurosurgery, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Christopher Jackson
- Department of Neurosurgery, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Isaac Yang
- Department of Neurosurgery, David Geffen School of Medicine at UCLA, University of California Los Angeles, Los Angeles, CA, USA
| | - Michael Lim
- Department of Neurosurgery, The Johns Hopkins University School of Medicine, Baltimore, MD, USA. ; Department of Oncology, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
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Li Q, Shen K, Zhao Y, He X, Ma C, Wang L, Wang B, Liu J, Ma J. MicroRNA-222 promotes tumorigenesis via targeting DKK2 and activating the Wnt/β-catenin signaling pathway. FEBS Lett 2013; 587:1742-8. [PMID: 23587485 DOI: 10.1016/j.febslet.2013.04.002] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2013] [Accepted: 04/03/2013] [Indexed: 11/30/2022]
Abstract
MiR-222 in glioma can regulate cell cycle progression and apoptosis. However, the relationship between miR-222 and Wnt/β-catenin signaling pathway in glioma remains unknown. Here, we found that the Dickkopf-2 gene (DKK2) was a direct target of miR-222 by target prediction analysis and dual luciferase reporter assay. RNA interference silencing of DKK2 proved that miR-222 overexpression led to constitutive activation of β-catenin through inhibition of DKK2 expression in glioma cells. Furthermore, miR-222 siRNA significantly inhibited tumorigenesis in vivo. Finally, Western blot analysis showed that miR-222 could regulate the expression of β-catenin and the downstream genes of Wnt/β-catenin signaling pathway. Taken together, our findings reveal a new regulatory mechanism of miR-222 and suggest that miR-222 might be a potential target in glioma therapy.
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Affiliation(s)
- Qifeng Li
- Department of Pediatric Neurosurgery, Xinhua Hospital, Shanghai Jiaotong University, School of Medicine, Shanghai 200092, PR China
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He Z, Cen D, Luo X, Li D, Li P, Liang L, Meng Z. Downregulation of miR-383 promotes glioma cell invasion by targeting insulin-like growth factor 1 receptor. Med Oncol 2013; 30:557. [DOI: 10.1007/s12032-013-0557-0] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2013] [Accepted: 03/21/2013] [Indexed: 10/27/2022]
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Lu S, Niu N, Guo H, Tang J, Guo W, Liu Z, Shi L, Sun T, Zhou F, Li H, Zhang J, Zhang B. ARK5 promotes glioma cell invasion, and its elevated expression is correlated with poor clinical outcome. Eur J Cancer 2013; 49:752-63. [DOI: 10.1016/j.ejca.2012.09.018] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2012] [Revised: 09/17/2012] [Accepted: 09/17/2012] [Indexed: 12/30/2022]
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Wang Z, Sun J, Li X, Yang S, Yue S, Zhang J, Yang X, Zhu T, Jiang R, Yang W. Downregulation of Src enhances the cytotoxic effect of temozolomide through AKT in glioma. Oncol Rep 2013; 29:1395-8. [PMID: 23338526 DOI: 10.3892/or.2013.2240] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2012] [Accepted: 12/04/2012] [Indexed: 11/06/2022] Open
Abstract
Src is an attractive target since it is overexpressed in a number of malignancies, including glioma. However, the mechanism of Src signaling as well as its silencing effect on temozolomide in glioma is not well known. We hypothesized that downregulation of Src may enhance the cytotoxic effect of temozolomide on glioma. As expected, Src was overexpressed in glioblastoma multiforme (GBM) compared with normal brain tissues. Src silencing suppressed tumor proliferation and induced apoptosis in glioma. In addition, Src silencing combined with temozolomide treatment resulted in significant inhibition of tumor growth. These effects may be mediated by AKT which is a downstream effector of Src, since downregulation of AKT exhibited a similar effect as Src siRNA when combined with temozolomide. Finally, we demonstrated that overexpression of AKT suppressed the enhanced cytotoxic effect of temozolomide mediated by Src silencing. Thus, the present study demonstrated that Src plays a biologically significant role in tumor proliferation and apoptosis and enhances the cytotoxic effect of temozolomide through AKT supression in glioma.
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Affiliation(s)
- Zengguang Wang
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin 300052, PR China
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Katsoulakis E, Beal K, Yamada Y. Image guidance in malignant gliomas: a focused strategy. CNS Oncol 2012; 1:131-6. [PMID: 25057863 DOI: 10.2217/cns.12.21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The standard of care for malignant gliomas is maximal surgical cytoreduction followed by concurrent chemoradiation and adjuvant chemotherapy with temozolomide. Chemotherapy adds a modest improvement in overall survival. Unfortunately, tumor recurrence is the rule and typically occurs at the initial site of disease. Salvage reirradiation may be a useful approach in selected patients with recurrent glioblastoma. Image-guided technology coupled with highly conformal treatment planning techniques have allowed the safe delivery of high-dose radiotherapy in the setting of tumor recurrence. Defining the optimal combination of hypofractionated stereotactic radiotherapy with chemotherapy is under investigation. In this perspective, we examine the role of image guidance in malignant gliomas.
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Affiliation(s)
- Evangelia Katsoulakis
- Department of Radiation Oncology, Memorial Sloan-Kettering Cancer Center, 1275 York Avenue, New York, NY 10065, USA
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