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Torres-Rico M, García-Calvo V, Gironda-Martínez A, Pascual-Guerra J, García AG, Maneu V. Targeting calciumopathy for neuroprotection: focus on calcium channels Cav1, Orai1 and P2X7. Cell Calcium 2024; 123:102928. [PMID: 39003871 DOI: 10.1016/j.ceca.2024.102928] [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: 05/30/2024] [Revised: 07/02/2024] [Accepted: 07/05/2024] [Indexed: 07/16/2024]
Abstract
As the uncontrolled entry of calcium ions (Ca2+) through plasmalemmal calcium channels is a cell death trigger, the conjecture is here raised that mitigating such an excess of Ca2+ entry should rescue from death the vulnerable neurons in neurodegenerative diseases (NDDs). However, this supposition has failed in some clinical trials (CTs). Thus, a recent CT tested whether isradipine, a blocker of the Cav1 subtype of voltage-operated calcium channels (VOCCs), exerted a benefit in patients with Parkinson's disease (PD); however, outcomes were negative. This is one more of the hundreds of CTs done under the principle of one-drug-one-target, that have failed in Alzheimer's disease (AD) and other NDDs during the last three decades. As there are myriad calcium channels to let Ca2+ ions gain the cell cytosol, it seems reasonable to predict that blockade of Ca2+ entry through a single channel may not be capable of preventing the Ca2+ flood of cells by the uncontrolled Ca2+ entry. Furthermore, as Ca2+ signaling is involved in the regulation of myriad functions in different cell types, it seems also reasonable to guess that a therapy should be more efficient by targeting different cells with various drugs. Here, we propose to mitigate Ca2+ entry by the simultaneous partial blockade of three quite different subtypes of plasmalemmal calcium channels that is, the Cav1 subtype of VOCCs, the Orai1 store-operated calcium channel (SOCC), and the purinergic P2X7 calcium channel. All three channels are expressed in both microglia and neurons. Thus, by targeting the three channels with a combination of three drug blockers we expect favorable changes in some of the pathogenic features of NDDs, namely (i) to mitigate Ca2+ entry into microglia; (ii) to decrease the Ca2+-dependent microglia activation; (iii) to decrease the sustained neuroinflammation; (iv) to decrease the uncontrolled Ca2+ entry into neurons; (v) to rescue vulnerable neurons from death; and (vi) to delay disease progression. In this review we discuss the arguments underlying our triad hypothesis in the sense that the combination of three repositioned medicines targeting Cav1, Orai1, and P2X7 calcium channels could boost neuroprotection and delay the progression of AD and other NDDs.
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Affiliation(s)
| | | | - Adrián Gironda-Martínez
- Instituto Fundación Teófilo Hernando, Madrid, Spain; Departamento de Farmacología y Terapéutica, Universidad Autónoma de Madrid, Madrid, Spain
| | | | - Antonio G García
- Instituto Fundación Teófilo Hernando, Madrid, Spain; Departamento de Farmacología y Terapéutica, Universidad Autónoma de Madrid, Madrid, Spain; Facultad de Medicina, Instituto de Investigación Sanitaria del Hospital Universitario La Princesa, Universidad Autónoma de Madrid, Madrid, Spain.
| | - Victoria Maneu
- Departamento de Óptica, Farmacología y Anatomía, Universidad de Alicante, Alicante, Spain.
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Agosti E, Zeppieri M, Ghidoni M, Ius T, Tel A, Fontanella MM, Panciani PP. Role of glioma stem cells in promoting tumor chemo- and radioresistance: A systematic review of potential targeted treatments. World J Stem Cells 2024; 16:604-614. [PMID: 38817336 PMCID: PMC11135247 DOI: 10.4252/wjsc.v16.i5.604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Revised: 03/06/2024] [Accepted: 04/19/2024] [Indexed: 05/24/2024] Open
Abstract
BACKGROUND Gliomas pose a significant challenge to effective treatment despite advancements in chemotherapy and radiotherapy. Glioma stem cells (GSCs), a subset within tumors, contribute to resistance, tumor heterogeneity, and plasticity. Recent studies reveal GSCs' role in therapeutic resistance, driven by DNA repair mechanisms and dynamic transitions between cellular states. Resistance mechanisms can involve different cellular pathways, most of which have been recently reported in the literature. Despite progress, targeted therapeutic approaches lack consensus due to GSCs' high plasticity. AIM To analyze targeted therapies against GSC-mediated resistance to radio- and chemotherapy in gliomas, focusing on underlying mechanisms. METHODS A systematic search was conducted across major medical databases (PubMed, Embase, and Cochrane Library) up to September 30, 2023. The search strategy utilized relevant Medical Subject Heading terms and keywords related to including "glioma stem cells", "radiotherapy", "chemotherapy", "resistance", and "targeted therapies". Studies included in this review were publications focusing on targeted therapies against the molecular mechanism of GSC-mediated resistance to radiotherapy resistance (RTR). RESULTS In a comprehensive review of 66 studies on stem cell therapies for SCI, 452 papers were initially identified, with 203 chosen for full-text analysis. Among them, 201 were deemed eligible after excluding 168 for various reasons. The temporal breakdown of studies illustrates this trend: 2005-2010 (33.3%), 2011-2015 (36.4%), and 2016-2022 (30.3%). Key GSC models, particularly U87 (33.3%), U251 (15.2%), and T98G (15.2%), emerge as significant in research, reflecting their representativeness of glioma characteristics. Pathway analysis indicates a focus on phosphoinositide 3-kinase/protein kinase B/mammalian target of rapamycin (mTOR) (27.3%) and Notch (12.1%) pathways, suggesting their crucial roles in resistance development. Targeted molecules with mTOR (18.2%), CHK1/2 (15.2%), and ATP binding cassette G2 (12.1%) as frequent targets underscore their importance in overcoming GSC-mediated resistance. Various therapeutic agents, notably RNA inhibitor/short hairpin RNA (27.3%), inhibitors (e.g., LY294002, NVP-BEZ235) (24.2%), and monoclonal antibodies (e.g., cetuximab) (9.1%), demonstrate versatility in targeted therapies. among 20 studies (60.6%), the most common effect on the chemotherapy resistance response is a reduction in temozolomide resistance (51.5%), followed by reductions in carmustine resistance (9.1%) and doxorubicin resistance (3.0%), while resistance to RTR is reduced in 42.4% of studies. CONCLUSION GSCs play a complex role in mediating radioresistance and chemoresistance, emphasizing the necessity for precision therapies that consider the heterogeneity within the GSC population and the dynamic tumor microenvironment to enhance outcomes for glioblastoma patients.
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Affiliation(s)
- Edoardo Agosti
- Division of Neurosurgery, Department of Medical and Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, Brescia 25123, Italy
| | - Marco Zeppieri
- Department of Ophthalmology, University Hospital of Udine, Udine 33100, Italy.
| | - Mattia Ghidoni
- Division of Neurosurgery, Department of Medical and Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, Brescia 25123, Italy
| | - Tamara Ius
- Neurosurgery Unit, Department of Head-Neck and NeuroScience, University Hospital of Udine, Udine 33100, Italy
| | - Alessandro Tel
- Clinic of Maxillofacial Surgery, Department of Head-Neck and NeuroScience, University Hospital of Udine, Udine 33100, Italy
| | - Marco Maria Fontanella
- Division of Neurosurgery, Department of Medical and Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, Brescia 25123, Italy
| | - Pier Paolo Panciani
- Division of Neurosurgery, Department of Medical and Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, Brescia 25123, Italy
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Douglas C, Lomeli N, Vu T, Pham J, Bota DA. WITHDRAWN: LonP1 Drives Proneural Mesenchymal Transition in IDH1-R132H Diffuse Glioma. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2023.04.13.536817. [PMID: 37131765 PMCID: PMC10153221 DOI: 10.1101/2023.04.13.536817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
The authors have withdrawn their manuscript owing to massive revision and data validation. Therefore, the authors do not wish this work to be cited as reference for the project. If you have any questions, please contact the corresponding author.
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Shah S, Mansour HM, Aguilar TM, Lucke-Wold B. Advances in Anti-Cancer Drug Development: Metformin as Anti-Angiogenic Supplemental Treatment for Glioblastoma. Int J Mol Sci 2024; 25:5694. [PMID: 38891882 PMCID: PMC11171521 DOI: 10.3390/ijms25115694] [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: 04/27/2024] [Revised: 05/17/2024] [Accepted: 05/22/2024] [Indexed: 06/21/2024] Open
Abstract
According to the WHO 2016 classification, glioblastoma is the most prevalent primary tumor in the adult central nervous system (CNS) and is categorized as grade IV. With an average lifespan of about 15 months from diagnosis, glioblastoma has a poor prognosis and presents a significant treatment challenge. Aberrant angiogenesis, which promotes tumor neovascularization and is a prospective target for molecular target treatment, is one of its unique and aggressive characteristics. Recently, the existence of glioma stem cells (GSCs) within the tumor, which are tolerant to chemotherapy and radiation, has been linked to the highly aggressive form of glioblastoma. Anti-angiogenic medications have not significantly improved overall survival (OS), despite various preclinical investigations and clinical trials demonstrating encouraging results. This suggests the need to discover new treatment options. Glioblastoma is one of the numerous cancers for which metformin, an anti-hyperglycemic medication belonging to the Biguanides family, is used as first-line therapy for type 2 diabetes mellitus (T2DM), and it has shown both in vitro and in vivo anti-tumoral activity. Based on these findings, the medication has been repurposed, which has shown the inhibition of many oncopromoter mechanisms and, as a result, identified the molecular pathways involved. Metformin inhibits cancer cell growth by blocking the LKB1/AMPK/mTOR/S6K1 pathway, leading to selective cell death in GSCs and inhibiting the proliferation of CD133+ cells. It has minimal impact on differentiated glioblastoma cells and normal human stem cells. The systematic retrieval of information was performed on PubMed. A total of 106 articles were found in a search on metformin for glioblastoma. Out of these six articles were Meta-analyses, Randomized Controlled Trials, clinical trials, and Systematic Reviews. The rest were Literature review articles. These articles were from the years 2011 to 2024. Appropriate studies were isolated, and important information from each of them was understood and entered into a database from which the information was used in this article. The clinical trials on metformin use in the treatment of glioblastoma were searched on clinicaltrials.gov. In this article, we examine and evaluate metformin's possible anti-tumoral effects on glioblastoma, determining whether or not it may appropriately function as an anti-angiogenic substance and be safely added to the treatment and management of glioblastoma patients.
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Affiliation(s)
- Siddharth Shah
- Department of Neurosurgery, University of Florida, Gainesville, FL 32608, USA; (S.S.)
| | - Hadeel M. Mansour
- Department of Neurosurgery, University of Florida, Gainesville, FL 32608, USA; (S.S.)
| | - Tania M. Aguilar
- College of Medicine at Chicago, University of Illinois, Chicago, IL 60612, USA
| | - Brandon Lucke-Wold
- Department of Neurosurgery, University of Florida, Gainesville, FL 32608, USA; (S.S.)
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5
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Douglas C, Jain S, Lomeli N, Di K, Nandwana NK, Mohammed AS, Vu T, Pham J, Lepe J, Kenney MC, Das B, Bota DA. WITHDRAWN: Dual targeting of mitochondrial Lon peptidase 1 and chymotrypsin-like protease by small molecule BT317, as potential therapeutics in malignant astrocytomas. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2023.04.13.536816. [PMID: 37131786 PMCID: PMC10153114 DOI: 10.1101/2023.04.13.536816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
The authors have withdrawn their manuscript owing to massive revision and data validation. Therefore, the authors do not wish this work to be cited as reference for the project. If you have any questions, please contact the corresponding author.
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Ferreira MY, Thomaz de Assis EB, Batista S, Palavani LB, Verly G, Corrêa EM, Mitre LP, Sales de Oliveira J, Bertani R, Moreno DA, Polverini AD. Survival Impact of Combined Biguanide and Temozolomide in Glioblastoma Preclinical Models: A Systematic Review and Meta-Analysis. World Neurosurg 2024; 183:239-245.e2. [PMID: 38184227 DOI: 10.1016/j.wneu.2024.01.006] [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: 11/21/2023] [Accepted: 01/01/2024] [Indexed: 01/08/2024]
Abstract
BACKGROUND Glioblastoma (GBM) is an aggressive tumor known for its poor prognosis. Despite extensive research into its molecular and clinical aspects, the current management strategies have shown limited efficacy in improving survival rate. Despite some preclinical studies exploring the combination of temozolomide (TMZ) with biguanides such as metformin (MET) and others, the potential benefits of this combination remain uncertain. The aim of this study is to evaluate the overall survival (OS) in GBM murine-models treated with a combination of TMZ + biguanide compared to those treated with TMZ alone. METHODS We systematically searched Medline, Embase, and Lilacs databases for studies comparing TMZ + biguanide versus TMZ alone in GBM models and reporting OS data. The mean difference (MD) with 95% confidence interval and random-effects model was adopted. RESULTS Nine studies were included in this systematic review. The meta-analysis comprised 6 studies involving 85 rat-models, with 45 subjects undergoing combined-treatment. GBM-murine models treated with TMZ + biguanide exhibited notably superior OS rates compared to those who received TMZ alone, showing an MD of 21.0 days (6.9-35.0). Within the subgroup of orthotopic models, the OS was also significantly better in combination-therapy with an MD of 23.7 days (6.5-40.9). Similarly, in the subgroup where MET was used as biguanide therapy, TMZ + MET demonstrated a significant increase in OS, with an MD of 27.4 days (6.0-48.8). In immunocompromised models, the combination-therapy also exhibited higher survival rates, with an MD of 13 days (9.4-16.6). CONCLUSIONS This systematic review and meta-analysis provide compelling evidence regarding the beneficial effects of TMZ + biguanide in GBM models compared with TMZ alone, resulting in a significant improvement in OS.
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Affiliation(s)
- Marcio Yuri Ferreira
- Postgraduate Program in Translational Surgery of Federal University of São Paulo, São Paulo, São Paulo, Brazil.
| | | | - Savio Batista
- Faculty of Medicine, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Lucca B Palavani
- Faculty of Medicine, Max Planck University Center, Indaiatuba, São Paulo, Brazil
| | - Gabriel Verly
- Faculty of Medicine, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Eduardo Mendes Corrêa
- Department of Neurosurgery, Pedro Ernesto University Hospital, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Lucas Pari Mitre
- Santa Casa de São Paulo School of Medical Sciences, São Paulo, São Paulo, Brazil
| | | | - Raphael Bertani
- Department of Neurosurgery, São Paulo University, São Paulo, São Paulo, Brazil
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Ibrahim RS, Ibrahim SS, El-Naas A, Koklesová L, Kubatka P, Büsselberg D. Could Metformin and Resveratrol Support Glioblastoma Treatment? A Mechanistic View at the Cellular Level. Cancers (Basel) 2023; 15:3368. [PMID: 37444478 DOI: 10.3390/cancers15133368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 06/14/2023] [Accepted: 06/15/2023] [Indexed: 07/15/2023] Open
Abstract
Glioblastoma, a malignant brain tumor, is a common primary brain tumor in adults, with diabetes mellitus being a crucial risk factor. This review examines how the antidiabetic drug metformin and dietary supplement resveratrol can benefit the treatment of glioblastoma. Metformin and resveratrol have demonstrated action against relevant pathways in cancer cells. Metformin and resveratrol inhibit cell proliferation by downregulating the PI3K/Akt pathway, activating mTOR, and increasing AMPK phosphorylation, resulting in lower proliferation and higher apoptosis levels. Metformin and resveratrol both upregulate and inhibit different cascades in the MAPK pathway. In vivo, the drugs reduced tumor growth and volume. These actions show how metformin and resveratrol can combat cancer with both glucose-dependent and glucose-independent effects. The pre-clinical results, alongside the lack of clinical studies and the rise in novel delivery mechanisms, warrant further clinical investigations into the applications of metformin and resveratrol as both separate and as a combination complement to current glioblastoma therapies.
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Affiliation(s)
| | | | - Ahmed El-Naas
- Weill Cornell Medicine-Qatar, Education City, Qatar Foundation, Doha 24144, Qatar
| | - Lenka Koklesová
- Clinic of Obstetrics and Gynecology, Jessenius Faculty of Medicine, Comenius University in Bratislava, 036 01 Martin, Slovakia
| | - Peter Kubatka
- Department of Medical Biology, Jessenius Faculty of Medicine, Comenius University in Bratislava, 036 01 Martin, Slovakia
| | - Dietrich Büsselberg
- Weill Cornell Medicine-Qatar, Education City, Qatar Foundation, Doha 24144, Qatar
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Yoon WS, Chang JH, Kim JH, Kim YJ, Jung TY, Yoo H, Kim SH, Ko YC, Nam DH, Kim TM, Kim SH, Park SH, Lee YS, Yim HW, Hong YK, Yang SH. Efficacy and safety of metformin plus low-dose temozolomide in patients with recurrent or refractory glioblastoma: a randomized, prospective, multicenter, double-blind, controlled, phase 2 trial (KNOG-1501 study). Discov Oncol 2023; 14:90. [PMID: 37278858 DOI: 10.1007/s12672-023-00678-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Accepted: 04/28/2023] [Indexed: 06/07/2023] Open
Abstract
PURPOSE Glioblastoma (GBM) has a poor prognosis after standard treatment. Recently, metformin has been shown to have an antitumor effect on glioma cells. We performed the first randomized prospective phase II clinical trial to investigate the clinical efficacy and safety of metformin in patients with recurrent or refractory GBM treated with low-dose temozolomide. METHODS Included patients were randomly assigned to a control group [placebo plus low-dose temozolomide (50 mg/m2, daily)] or an experimental group [metformin (1000 mg, 1500 mg, and 2000 mg per day during the 1st, 2nd, and 3rd week until disease progression, respectively) plus low-dose temozolomide]. The primary endpoint was progression-free survival (PFS). Secondary endpoints were overall survival (OS), disease control rate, overall response rate, health-related quality of life, and safety. RESULTS Among the 92 patients screened, 81 were randomly assigned to the control group (43 patients) or the experimental group (38 patients). Although the control group showed a longer median PFS, the difference between the two groups was not statistically significant (2.66 versus 2.3 months, p = 0.679). The median OS was 17.22 months (95% CI 12.19-21.68 months) in the experimental group and 7.69 months (95% CI 5.16-22.67 months) in the control group, showing no significant difference by the log-rank test (HR: 0.78; 95% CI 0.39-1.58; p = 0.473). The overall response rate and disease control rate were 9.3% and 46.5% in the control group and 5.3% and 47.4% in the experimental group, respectively. CONCLUSIONS Although the metformin plus temozolomide regimen was well tolerated, it did not confer a clinical benefit in patients with recurrent or refractory GBM. Trial registration NCT03243851, registered August 4, 2017.
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Affiliation(s)
- Wan-Soo Yoon
- Department of Neurosurgery, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Jong Hee Chang
- Department of Neurosurgery, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Jeong Hoon Kim
- Department of Neurological Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Yu Jung Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - Tae-Young Jung
- Department of Neurosurgery, Chonnam National University Hwasun Hospital, Hwasun, Korea
| | - Heon Yoo
- Department of Neuro-Oncology Clinic, Center for Specific Organs Cancer, National Cancer Center Hospital, National Cancer Center, Goyang, Korea
| | - Se-Hyuk Kim
- Department of Neurosurgery, Ajou University Hospital, Ajou University School of Medicine, Suwon, Korea
| | - Young-Cho Ko
- Department of Neurosurgery, Konkuk University Medical Center, Seoul, Korea
| | - Do-Hyun Nam
- Department of Neurosurgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Tae Min Kim
- Department of Internal Medicine, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Se Hoon Kim
- Department of Pathology, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Sung-Hae Park
- Department of Pathology, Seoul National University Hospital, Seoul, Korea
| | - Youn Soo Lee
- Department of Hospital Pathology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Hyeon Woo Yim
- Department of Preventive Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Yong-Kil Hong
- Department of Neurosurgery, Hallym University Sacred Heart Hospital, The Hallym University Medical Center, 22, Gwanpyeong-ro 170 beon-gil, Dong-gu, Anyang-si, Gyeongggi-do, 14068, Korea.
| | - Seung Ho Yang
- Department of Neurosurgery, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, 93 Jungbudaero, Paldal-gu, Suwon, Seoul, 16247, Korea.
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Bernhard C, Reita D, Martin S, Entz-Werle N, Dontenwill M. Glioblastoma Metabolism: Insights and Therapeutic Strategies. Int J Mol Sci 2023; 24:ijms24119137. [PMID: 37298093 DOI: 10.3390/ijms24119137] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 05/10/2023] [Accepted: 05/18/2023] [Indexed: 06/12/2023] Open
Abstract
Tumor metabolism is emerging as a potential target for cancer therapies. This new approach holds particular promise for the treatment of glioblastoma, a highly lethal brain tumor that is resistant to conventional treatments, for which improving therapeutic strategies is a major challenge. The presence of glioma stem cells is a critical factor in therapy resistance, thus making it essential to eliminate these cells for the long-term survival of cancer patients. Recent advancements in our understanding of cancer metabolism have shown that glioblastoma metabolism is highly heterogeneous, and that cancer stem cells exhibit specific metabolic traits that support their unique functionality. The objective of this review is to examine the metabolic changes in glioblastoma and investigate the role of specific metabolic processes in tumorigenesis, as well as associated therapeutic approaches, with a particular focus on glioma stem cell populations.
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Affiliation(s)
- Chloé Bernhard
- UMR CNRS 7021, Laboratory Bioimaging and Pathologies, Tumoral Signaling and Therapeutic Targets, Faculty of Pharmacy, University of Strasbourg, 67405 lllkirch, France
| | - Damien Reita
- UMR CNRS 7021, Laboratory Bioimaging and Pathologies, Tumoral Signaling and Therapeutic Targets, Faculty of Pharmacy, University of Strasbourg, 67405 lllkirch, France
- Laboratory of Biochemistry and Molecular Biology, Department of Cancer Molecular Genetics, University Hospital of Strasbourg, 67200 Strasbourg, France
| | - Sophie Martin
- UMR CNRS 7021, Laboratory Bioimaging and Pathologies, Tumoral Signaling and Therapeutic Targets, Faculty of Pharmacy, University of Strasbourg, 67405 lllkirch, France
| | - Natacha Entz-Werle
- UMR CNRS 7021, Laboratory Bioimaging and Pathologies, Tumoral Signaling and Therapeutic Targets, Faculty of Pharmacy, University of Strasbourg, 67405 lllkirch, France
- Pediatric Onco-Hematology Unit, University Hospital of Strasbourg, 67098 Strasbourg, France
| | - Monique Dontenwill
- UMR CNRS 7021, Laboratory Bioimaging and Pathologies, Tumoral Signaling and Therapeutic Targets, Faculty of Pharmacy, University of Strasbourg, 67405 lllkirch, France
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Montiel-Dávalos A, Ayala Y, Hernández G. The dark side of mRNA translation and the translation machinery in glioblastoma. Front Cell Dev Biol 2023; 11:1086964. [PMID: 36994107 PMCID: PMC10042294 DOI: 10.3389/fcell.2023.1086964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Accepted: 03/03/2023] [Indexed: 03/14/2023] Open
Abstract
Among the different types of cancer affecting the central nervous system (CNS), glioblastoma (GB) is classified by the World Health Organization (WHO) as the most common and aggressive CNS cancer in adults. GB incidence is more frequent among persons aged 45–55 years old. GB treatments are based on tumor resection, radiation, and chemotherapies. The current development of novel molecular biomarkers (MB) has led to a more accurate prediction of GB progression. Moreover, clinical, epidemiological, and experimental studies have established genetic variants consistently associated with the risk of suffering GB. However, despite the advances in these fields, the survival expectancy of GB patients is still shorter than 2 years. Thus, fundamental processes inducing tumor onset and progression remain to be elucidated. In recent years, mRNA translation has been in the spotlight, as its dysregulation is emerging as a key cause of GB. In particular, the initiation phase of translation is most involved in this process. Among the crucial events, the machinery performing this phase undergoes a reconfiguration under the hypoxic conditions in the tumor microenvironment. In addition, ribosomal proteins (RPs) have been reported to play translation-independent roles in GB development. This review focuses on the research elucidating the tight relationship between translation initiation, the translation machinery, and GB. We also summarize the state-of-the-art drugs targeting the translation machinery to improve patients’ survival. Overall, the recent advances in this field are shedding new light on the dark side of translation in GB.
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Ion Channels in Gliomas-From Molecular Basis to Treatment. Int J Mol Sci 2023; 24:ijms24032530. [PMID: 36768856 PMCID: PMC9916861 DOI: 10.3390/ijms24032530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 01/11/2023] [Accepted: 01/17/2023] [Indexed: 01/31/2023] Open
Abstract
Ion channels provide the basis for the nervous system's intrinsic electrical activity. Neuronal excitability is a characteristic property of neurons and is critical for all functions of the nervous system. Glia cells fulfill essential supportive roles, but unlike neurons, they also retain the ability to divide. This can lead to uncontrolled growth and the formation of gliomas. Ion channels are involved in the unique biology of gliomas pertaining to peritumoral pathology and seizures, diffuse invasion, and treatment resistance. The emerging picture shows ion channels in the brain at the crossroads of neurophysiology and fundamental pathophysiological processes of specific cancer behaviors as reflected by uncontrolled proliferation, infiltration, resistance to apoptosis, metabolism, and angiogenesis. Ion channels are highly druggable, making them an enticing therapeutic target. Targeting ion channels in difficult-to-treat brain tumors such as gliomas requires an understanding of their extremely heterogenous tumor microenvironment and highly diverse molecular profiles, both representing major causes of recurrence and treatment resistance. In this review, we survey the current knowledge on ion channels with oncogenic behavior within the heterogeneous group of gliomas, review ion channel gene expression as genomic biomarkers for glioma prognosis and provide an update on therapeutic perspectives for repurposed and novel ion channel inhibitors and electrotherapy.
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Dual-drug loaded nanomedicine hydrogel as a therapeutic platform to target both residual glioblastoma and glioma stem cells. Int J Pharm 2022; 628:122341. [DOI: 10.1016/j.ijpharm.2022.122341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 10/19/2022] [Accepted: 10/22/2022] [Indexed: 11/06/2022]
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13
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Yu Z, Li H, Wang M, Luo W, Xue Y. GDNF regulates lipid metabolism and glioma growth through RET/ERK/HIF‑1/SREBP‑1. Int J Oncol 2022; 61:109. [PMID: 35894143 PMCID: PMC9436484 DOI: 10.3892/ijo.2022.5399] [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: 02/16/2022] [Accepted: 07/08/2022] [Indexed: 11/08/2022] Open
Abstract
Cancer cells rewire their metabolism to meet the demands of growth and survival and this metabolic reprogramming has been recognized as an emerging hallmark of cancer. However, the respective mechanisms remain elusive and the contribution of aberrant lipid metabolism to the malignant phenotypes of glioma are unclear. The present study demonstrated that glial-derived neurotrophic factor (GDNF) is highly expressed in glioma and associated with poor clinical outcomes. In addition, there was a significant correlation between GDNF/rearranged during transfection (RET)/ERK signaling and sterol regulatory element-binding protein-1 (SREBP-1) expression in glioma cells. Pharmacological or genetic inhibition of GDNF-induced RET/ERK activity downregulated SREBP-1 expression and SREBP-1-mediated transcription of lipogenic genes. Additionally, GDNF regulated SREBP-1 activity by promoting hypoxia-inducible factor-1α (HIF-1α) mediated glucose absorption and hexosamine biosynthetic pathway mediated SREBP cleavage-activating protein N-glycosylation. In addition, the inhibition of SREBP-1 reduced the in vitro GDNF-induced glioma cell proliferation. The results elucidated the complex relationship between GDNF/RET/ERK signaling and dysregulated glycolipid-metabolism, which shows great potential to uncover novel metabolic vulnerabilities and improve the efficacy of targeted therapies.
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Affiliation(s)
- Zhiyun Yu
- Department of Neurosurgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450000, P.R. China
| | - Hongjiang Li
- Department of Neurosurgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450000, P.R. China
| | - Meng Wang
- Department of Neurosurgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450000, P.R. China
| | - Wenzheng Luo
- Department of Neurosurgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450000, P.R. China
| | - Yake Xue
- Department of Neurosurgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450000, P.R. China
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14
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Mechanical Properties of the Extracellular Environment of Human Brain Cells Drive the Effectiveness of Drugs in Fighting Central Nervous System Cancers. Brain Sci 2022; 12:brainsci12070927. [PMID: 35884733 PMCID: PMC9313046 DOI: 10.3390/brainsci12070927] [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: 05/09/2022] [Revised: 07/11/2022] [Accepted: 07/13/2022] [Indexed: 12/04/2022] Open
Abstract
The evaluation of nanomechanical properties of tissues in health and disease is of increasing interest to scientists. It has been confirmed that these properties, determined in part by the composition of the extracellular matrix, significantly affect tissue physiology and the biological behavior of cells, mainly in terms of their adhesion, mobility, or ability to mutate. Importantly, pathophysiological changes that determine disease development within the tissue usually result in significant changes in tissue mechanics that might potentially affect the drug efficacy, which is important from the perspective of development of new therapeutics, since most of the currently used in vitro experimental models for drug testing do not account for these properties. Here, we provide a summary of the current understanding of how the mechanical properties of brain tissue change in pathological conditions, and how the activity of the therapeutic agents is linked to this mechanical state.
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15
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Kenneth K W To, Cho WCS. Drug repurposing for cancer therapy in the era of precision medicine. Curr Mol Pharmacol 2022; 15:895-903. [PMID: 35156588 DOI: 10.2174/1874467215666220214104530] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 10/15/2021] [Accepted: 11/07/2021] [Indexed: 11/22/2022]
Abstract
Drug repurposing refers to the identification of clinically approved drugs, with the known safety profiles and defined pharmacokinetic properties, to new indications. Despite the advances in oncology research, cancers are still associated with the most unmet medical needs. Drug repurposing has emerged as a useful approach for the search for effective and durable cancer treatment. It may also represent a promising strategy to facilitate precision cancer treatment and to overcome drug resistance. The repurposing of non-cancer drugs for precision oncology effectively extends the inventory of actionable molecular targets and thus increases the number of patients who may benefit from precision cancer treatment. In cancer types where genetic heterogeneity is so high that it is not feasible to identify strong repurposed drug candidates for standard treatment, the precision oncology approach offers individual patients access to novel treatment options. For repurposed candidates with low potency, a combination of multiple repurposed drugs may produce a synergistic therapeutic effect. Precautions should be taken when combining repurposed drugs with anticancer agents to avoid detrimental drug-drug interactions and unwanted side effects. New multifactorial data analysis and artificial intelligence methods are needed to untangle the complex association of molecular signatures influencing specific cancer subtypes to facilitate drug repurposing in precision oncology.
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Affiliation(s)
- Kenneth K W To
- School of Pharmacy, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - William C S Cho
- Department of Clinical Oncology, Queen Elizabeth Hospital, Hong Kong SAR, China
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16
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Barzegar Behrooz A, Talaie Z, Jusheghani F, Łos MJ, Klonisch T, Ghavami S. Wnt and PI3K/Akt/mTOR Survival Pathways as Therapeutic Targets in Glioblastoma. Int J Mol Sci 2022; 23:ijms23031353. [PMID: 35163279 PMCID: PMC8836096 DOI: 10.3390/ijms23031353] [Citation(s) in RCA: 77] [Impact Index Per Article: 38.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 01/14/2022] [Accepted: 01/17/2022] [Indexed: 02/06/2023] Open
Abstract
Glioblastoma (GBM) is a devastating type of brain tumor, and current therapeutic treatments, including surgery, chemotherapy, and radiation, are palliative at best. The design of effective and targeted chemotherapeutic strategies for the treatment of GBM require a thorough analysis of specific signaling pathways to identify those serving as drivers of GBM progression and invasion. The Wnt/β-catenin and PI3K/Akt/mTOR (PAM) signaling pathways are key regulators of important biological functions that include cell proliferation, epithelial–mesenchymal transition (EMT), metabolism, and angiogenesis. Targeting specific regulatory components of the Wnt/β-catenin and PAM pathways has the potential to disrupt critical brain tumor cell functions to achieve critical advancements in alternative GBM treatment strategies to enhance the survival rate of GBM patients. In this review, we emphasize the importance of the Wnt/β-catenin and PAM pathways for GBM invasion into brain tissue and explore their potential as therapeutic targets.
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Affiliation(s)
- Amir Barzegar Behrooz
- Brain Cancer Department, Asu vanda Gene Industrial Research Company, Tehran 1533666398, Iran; (A.B.B.); (Z.T.)
| | - Zahra Talaie
- Brain Cancer Department, Asu vanda Gene Industrial Research Company, Tehran 1533666398, Iran; (A.B.B.); (Z.T.)
| | - Fatemeh Jusheghani
- Department of Biotechnology, Asu vanda Gene Industrial Research Company, Tehran 1533666398, Iran;
| | - Marek J. Łos
- Biotechnology Center, Silesian University of Technology, 44-100 Gliwice, Poland;
| | - Thomas Klonisch
- Department of Human Anatomy and Cell Science, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, MB R3E 0V9, Canada;
- Department of Pathology, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, MB R3E 0V9, Canada
- Department of Surgery, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, MB R3E 0V9, Canada
- Department of Medical Microbiology and Infectious Diseases, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, MB R3E 0V9, Canada
- Research Institute of Oncology and Hematology, Cancer Care Manitoba, Winnipeg, MB R3E 0V9, Canada
| | - Saeid Ghavami
- Department of Human Anatomy and Cell Science, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, MB R3E 0V9, Canada;
- Research Institute of Oncology and Hematology, Cancer Care Manitoba, Winnipeg, MB R3E 0V9, Canada
- Biology of Breathing Theme, Children Hospital Research Institute of Manitoba, University of Manitoba, Winnipeg, MB R3E 0V9, Canada
- Faculty of Medicine, Katowice School of Technology, 40-555 Katowice, Poland
- Correspondence:
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17
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Frontiers in Anti-Cancer Drug Discovery: Challenges and Perspectives of Metformin as Anti-Angiogenic Add-On Therapy in Glioblastoma. Cancers (Basel) 2021; 14:cancers14010112. [PMID: 35008275 PMCID: PMC8749852 DOI: 10.3390/cancers14010112] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 12/15/2021] [Accepted: 12/19/2021] [Indexed: 12/13/2022] Open
Abstract
Simple Summary Glioblastoma is the most aggressive primary brain tumor, with the highest incidence and the worst prognosis. Life expectancy from diagnosis remains dismal, at around 15 months, despite surgical resection and treatment with radiotherapy and chemotherapy. Given the aggressiveness of the tumor and the inefficiency of the treatments adopted to date, the scientific research investigates innovative therapeutic approaches. Importantly, angiogenesis represents one of the main features of glioblastoma, becoming in the last few years a major candidate for target therapy. Metformin, a well-established therapy for type 2 diabetes, offered excellent results in preventing and fighting tumor progression, particularly against angiogenic mechanisms. Therefore, the purpose of this review is to summarize and discuss experimental evidence of metformin anti-cancer efficacy, with the aim of proposing this totally safe and tolerable drug as add-on therapy against glioblastoma. Abstract Glioblastoma is the most common primitive tumor in adult central nervous system (CNS), classified as grade IV according to WHO 2016 classification. Glioblastoma shows a poor prognosis with an average survival of approximately 15 months, representing an extreme therapeutic challenge. One of its distinctive and aggressive features is aberrant angiogenesis, which drives tumor neovascularization, representing a promising candidate for molecular target therapy. Although several pre-clinical studies and clinical trials have shown promising results, anti-angiogenic drugs have not led to a significant improvement in overall survival (OS), suggesting the necessity of identifying novel therapeutic strategies. Metformin, an anti-hyperglycemic drug of the Biguanides family, used as first line treatment in Type 2 Diabetes Mellitus (T2DM), has demonstrated in vitro and in vivo antitumoral efficacy in many different tumors, including glioblastoma. From this evidence, a process of repurposing of the drug has begun, leading to the demonstration of inhibition of various oncopromoter mechanisms and, consequently, to the identification of the molecular pathways involved. Here, we review and discuss metformin’s potential antitumoral effects on glioblastoma, inspecting if it could properly act as an anti-angiogenic compound to be considered as a safely add-on therapy in the treatment and management of glioblastoma patients.
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18
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Hvinden IC, Cadoux-Hudson T, Schofield CJ, McCullagh JS. Metabolic adaptations in cancers expressing isocitrate dehydrogenase mutations. Cell Rep Med 2021; 2:100469. [PMID: 35028610 PMCID: PMC8714851 DOI: 10.1016/j.xcrm.2021.100469] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The most frequently mutated metabolic genes in human cancer are those encoding the enzymes isocitrate dehydrogenase 1 (IDH1) and IDH2; these mutations have so far been identified in more than 20 tumor types. Since IDH mutations were first reported in glioma over a decade ago, extensive research has revealed their association with altered cellular processes. Mutations in IDH lead to a change in enzyme function, enabling efficient conversion of 2-oxoglutarate to R-2-hydroxyglutarate (R-2-HG). It is proposed that elevated cellular R-2-HG inhibits enzymes that regulate transcription and metabolism, subsequently affecting nuclear, cytoplasmic, and mitochondrial biochemistry. The significance of these biochemical changes for tumorigenesis and potential for therapeutic exploitation remains unclear. Here we comprehensively review reported direct and indirect metabolic changes linked to IDH mutations and discuss their clinical significance. We also review the metabolic effects of first-generation mutant IDH inhibitors and highlight the potential for combination treatment strategies and new metabolic targets.
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Affiliation(s)
- Ingvild Comfort Hvinden
- Chemistry Research Laboratory, 12 Mansfield Road, Department of Chemistry, University of Oxford, Oxford OX1 3TA, UK
| | - Tom Cadoux-Hudson
- Chemistry Research Laboratory, 12 Mansfield Road, Department of Chemistry, University of Oxford, Oxford OX1 3TA, UK
| | - Christopher J. Schofield
- Chemistry Research Laboratory, 12 Mansfield Road, Department of Chemistry, University of Oxford, Oxford OX1 3TA, UK
- Ineos Oxford Institute for Antimicrobial Research, 12 Mansfield Road, Department of Chemistry, University of Oxford, Oxford OX1 3TA, UK
| | - James S.O. McCullagh
- Chemistry Research Laboratory, 12 Mansfield Road, Department of Chemistry, University of Oxford, Oxford OX1 3TA, UK
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19
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ERK inhibition in glioblastoma is associated with autophagy activation and tumorigenesis suppression. J Neurooncol 2021; 156:123-137. [PMID: 34797524 DOI: 10.1007/s11060-021-03896-3] [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: 09/16/2021] [Accepted: 11/04/2021] [Indexed: 10/19/2022]
Abstract
PURPOSE Autophagy-dependent tumorigenic growth is one of the most commonly reported molecular mechanisms in glioblastoma (GBM) progression. However, the mechanistic correlation between autophagy and GBM is still largely unexplored, especially the roles of autophagy-related genes involved in GBM oncogenesis. In this study, we aimed to explore the genetic alterations that interact with both autophagic activity and GBM tumorigenesis, and to investigate the molecular mechanisms of autophagy involved in GBM cell death and survival. METHOD For this purpose, we systematically explored the alterations of autophagic molecules at the genome level in human GBM samples through deep RNA sequencing. The effect of genetic and pharmacologic inhibition of ERK on GBM growth in vitro and in vivo was researched. An image-based tracking analysis of LC3 using mCherry-eGFP-LC3 plasmid, and transmission electron microscopy were utilized to monitor autophagic flux. Immunoblot analysis was used to measure the related proteins. RESULTS MAPK ERK expression was identified as one of the most probable autophagy-related transcriptional responses during GBM growth. The genetic and pharmacologic inhibition of ERK in vivo and in vitro led to cell death, demonstrating its critical role for GBM proliferation and survival. To our surprise, autophagic activities were excessively activated and resulted in cytodestructive effects on GBM cells upon ERK inhibitor treatment. Furthermore, based on the observation of downregulation of mTOR signaling, we speculated the ERK inhibitor-induced GBM cells death might depend on mTOR-mediated pathway, leading to autophagy dysregulation. Accordingly, the in vivo and in vitro experiments revealed that the mTOR inhibitor rapamycin further increased cell mortality and exhibited enhanced antitumor effect on GBM cells when co-treated with the ERK inhibitor. CONCLUSION Our data creatively demonstrated that the autophagy-related regulator ERK maintains autophagic activity during GBM tumorigenesis via mTOR signaling pathway. The pharmacologic inhibition of both mTOR and ERK signaling exhibited synergistic therapeutic effect on GBM growth in vivo and in vitro, which has certain novelty and may provide a potential therapeutic approach for GBM treatment in the future.
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20
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Raj D, Agrawal P, Gaitsch H, Wicks E, Tyler B. Pharmacological strategies for improving the prognosis of glioblastoma. Expert Opin Pharmacother 2021; 22:2019-2031. [PMID: 34605345 PMCID: PMC8603465 DOI: 10.1080/14656566.2021.1948013] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Accepted: 06/22/2021] [Indexed: 12/13/2022]
Abstract
Introduction: Treatments for brain cancer have radically evolved in the past decade due to a better understanding of the interplay between the immune system and tumors of the central nervous system (CNS). However, glioblastoma multiforme (GBM) remains the most common and lethal CNS malignancy affecting adults.Areas covered: The authors review the literature on glioblastoma pharmacologic therapies with a focus on trials of combination chemo-/immunotherapies and drug delivery platforms from 2015 to 2021.Expert opinion: Few therapeutic advances in GBM treatment have been made since the Food and Drug Administration (FDA) approval of the BCNU-eluting wafer, Gliadel, in 1996 and oral temozolomide (TMZ) in 2005. Recent advances in our understanding of GBM have promoted a wide assortment of new therapeutic approaches including combination therapy, immunotherapy, vaccines, and Car T-cell therapy along with developments in drug delivery. Given promising preclinical data, these novel pharmacotherapies for the treatment of GBM are currently being evaluated in various stages of clinical trials.
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Affiliation(s)
- Divyaansh Raj
- Hunterian Neurosurgical Research Laboratory, Department of Neurosurgery, Johns Hopkins School of Medicine, Johns Hopkins University, Baltimore, Maryland
| | - Pranjal Agrawal
- Hunterian Neurosurgical Research Laboratory, Department of Neurosurgery, Johns Hopkins School of Medicine, Johns Hopkins University, Baltimore, Maryland
| | - Hallie Gaitsch
- Hunterian Neurosurgical Research Laboratory, Department of Neurosurgery, Johns Hopkins School of Medicine, Johns Hopkins University, Baltimore, Maryland
| | - Elizabeth Wicks
- Hunterian Neurosurgical Research Laboratory, Department of Neurosurgery, Johns Hopkins School of Medicine, Johns Hopkins University, Baltimore, Maryland
| | - Betty Tyler
- Department of Neurosurgery, Johns Hopkins University, Baltimore, Maryland
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21
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Harland A, Liu X, Ghirardello M, Galan MC, Perks CM, Kurian KM. Glioma Stem-Like Cells and Metabolism: Potential for Novel Therapeutic Strategies. Front Oncol 2021; 11:743814. [PMID: 34532295 PMCID: PMC8438230 DOI: 10.3389/fonc.2021.743814] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Accepted: 08/09/2021] [Indexed: 12/21/2022] Open
Abstract
Glioma stem-like cells (GSCs) were first described as a population which may in part be resistant to traditional chemotherapeutic therapies and responsible for tumour regrowth. Knowledge of the underlying metabolic complexity governing GSC growth and function may point to potential differences between GSCs and the tumour bulk which could be harnessed clinically. There is an increasing interest in the direct/indirect targeting or reprogramming of GSC metabolism as a potential novel therapeutic approach in the adjuvant or recurrent setting to help overcome resistance which may be mediated by GSCs. In this review we will discuss stem-like models, interaction between metabolism and GSCs, and potential current and future strategies for overcoming GSC resistance.
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Affiliation(s)
- Abigail Harland
- Brain Tumour Research Centre, Bristol Medical School, University of Bristol, Bristol, United Kingdom
| | - Xia Liu
- Brain Tumour Research Centre, Bristol Medical School, University of Bristol, Bristol, United Kingdom
| | - Mattia Ghirardello
- Galan Research Group, School of Chemistry, University of Bristol, Bristol, United Kingdom
| | - M Carmen Galan
- Galan Research Group, School of Chemistry, University of Bristol, Bristol, United Kingdom
| | - Claire M Perks
- IGFs and Metabolic Endocrinology Group, Bristol Medical School, Translational Health Sciences, Southmead Hospital, University of Bristol, Bristol, United Kingdom
| | - Kathreena M Kurian
- Brain Tumour Research Centre, Bristol Medical School, University of Bristol, Bristol, United Kingdom
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22
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Batara DCR, Choi MC, Shin HU, Kim H, Kim SH. Friend or Foe: Paradoxical Roles of Autophagy in Gliomagenesis. Cells 2021; 10:1411. [PMID: 34204169 PMCID: PMC8227518 DOI: 10.3390/cells10061411] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 05/30/2021] [Accepted: 06/03/2021] [Indexed: 02/07/2023] Open
Abstract
Glioblastoma multiforme (GBM) is the most common and aggressive type of primary brain tumor in adults, with a poor median survival of approximately 15 months after diagnosis. Despite several decades of intensive research on its cancer biology, treatment for GBM remains a challenge. Autophagy, a fundamental homeostatic mechanism, is responsible for degrading and recycling damaged or defective cellular components. It plays a paradoxical role in GBM by either promoting or suppressing tumor growth depending on the cellular context. A thorough understanding of autophagy's pleiotropic roles is needed to develop potential therapeutic strategies for GBM. In this paper, we discussed molecular mechanisms and biphasic functions of autophagy in gliomagenesis. We also provided a summary of treatments for GBM, emphasizing the importance of autophagy as a promising molecular target for treating GBM.
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Affiliation(s)
- Don Carlo Ramos Batara
- Department of Animal Science, College of Agriculture and Life Sciences, Chonnam National University, Gwangju 61186, Korea; (D.C.R.B.); (H.-U.S.)
| | - Moon-Chang Choi
- Department of Biomedical Science, Chosun University, Gwangju 61452, Korea;
| | - Hyeon-Uk Shin
- Department of Animal Science, College of Agriculture and Life Sciences, Chonnam National University, Gwangju 61186, Korea; (D.C.R.B.); (H.-U.S.)
| | - Hyunggee Kim
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Korea;
| | - Sung-Hak Kim
- Department of Animal Science, College of Agriculture and Life Sciences, Chonnam National University, Gwangju 61186, Korea; (D.C.R.B.); (H.-U.S.)
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23
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Shi J, Dong X, Li H, Wang H, Jiang Q, Liu L, Wang L, Dong J. Nicardipine sensitizes temozolomide by inhibiting autophagy and promoting cell apoptosis in glioma stem cells. Aging (Albany NY) 2021; 13:6820-6831. [PMID: 33621205 PMCID: PMC7993688 DOI: 10.18632/aging.202539] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Accepted: 12/18/2020] [Indexed: 02/07/2023]
Abstract
Glioblastoma multiforme (GBM) is the most invasive malignant central nervous system tumor with poor prognosis. Nicardipine, a dihydropyridine calcium channel antagonist, has been used as an adjuvant to enhance sensitivity to chemotherapeutic drugs. However, whether glioma stem cells (GSCs) can be sensitized to chemotherapy via combined treatment with temozolomide (TMZ) and nicardipine is unclear. In this study, surgical specimen derived GSCs SU4 and SU5 were applied to explore the sensitization effect of nicardipine on temozolomide against GSCs, and further explore the relevant molecular mechanisms. Our results showed that nicardipine can enhance the toxic effect of temozolomide against GSCs, promote apoptosis of GSCs, and inhibit autophagy of GSCs. The relevant mechanisms were related to activation of mTOR, and selective inhibition of mTOR by rapamycin could weaken the sensitization of nicardipine to temozolomide, which suggest that nicardipine can be applied as an adjuvant to inhibit autophagy in GSCs, and enhance apoptosis-promoting effect of temozolomide in GSCs as well. Nicardipine can inhibit autophagy by activating expression of mTOR, thus play tumor inhibition roles both in vitro and in vivo. Repurposing of nicardipine can help to improving therapeutic effect of TMZ against GBM, which deserves further clinical investigations.
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Affiliation(s)
- Jia Shi
- Department of Neurosurgery, Second Affiliated Hospital of Soochow University, Suzhou, China.,Department of Neurosurgery, Third Affiliated Hospital of Soochow University, Changzhou, China
| | - Xuchen Dong
- Department of Neurosurgery, Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Haoran Li
- Department of Neurosurgery, Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Haiyang Wang
- Department of Neurosurgery, Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Qianqian Jiang
- Department of Neurosurgery, Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Liang Liu
- Department of Neurosurgery, Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Liping Wang
- Department of Neurosurgery, Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Jun Dong
- Department of Neurosurgery, Second Affiliated Hospital of Soochow University, Suzhou, China
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24
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Cheng CL, Chan MH, Feng SJ, Hsiao M, Liu RS. Long-Term Near-Infrared Signal Tracking of the Therapeutic Changes of Glioblastoma Cells in Brain Tissue with Ultrasound-Guided Persistent Luminescent Nanocomposites. ACS APPLIED MATERIALS & INTERFACES 2021; 13:6099-6108. [PMID: 33507729 DOI: 10.1021/acsami.0c22489] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The blood-brain barrier (BBB) is a physical barrier that selectively prevents certain substances from entering the brain through the blood. The BBB protects the brain from germs and causes difficulty in intracranial treatment. The chemotherapy drug temozolomide (TMZ), embedded in nanobubbles (NBs) and combined with persistent luminescent nanoparticles (PLNs), has been used to treat glioblastoma (GBM) effectively through image tracking. Through ultrasound induction, NBs produce cavitation that temporarily opens the BBB. Additionally, the PLNs release near-infrared emission and afterglow, which can penetrate deep tissues and improve the signal-to-noise ratio of bioimages. In this work, the nanosystem crossed the BBB for drug delivery and image tracking over time, allowing the enhancement of the drug's therapeutic effect on GBM. We hope that this nanosystem can be applied to the treatment of different brain diseases by embedding different drugs in NBs.
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Affiliation(s)
- Chiao-Ling Cheng
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Ming-Hsien Chan
- Genomics Research Center, Academia Sinica, Taipei 11529, Taiwan
| | - Sheng-Jan Feng
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Michael Hsiao
- Genomics Research Center, Academia Sinica, Taipei 11529, Taiwan
- Department of Biochemistry, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Ru-Shi Liu
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
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25
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Bozzato E, Bastiancich C, Préat V. Nanomedicine: A Useful Tool against Glioma Stem Cells. Cancers (Basel) 2020; 13:cancers13010009. [PMID: 33375034 PMCID: PMC7792799 DOI: 10.3390/cancers13010009] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 12/17/2020] [Accepted: 12/18/2020] [Indexed: 02/06/2023] Open
Abstract
The standard of care therapy of glioblastoma (GBM) includes invasive surgical resection, followed by radiotherapy and concomitant chemotherapy. However, this therapy has limited success, and the prognosis for GBM patients is very poor. Although many factors may contribute to the failure of current treatments, one of the main causes of GBM recurrences are glioma stem cells (GSCs). This review focuses on nanomedicine strategies that have been developed to eliminate GSCs and the benefits that they have brought to the fight against cancer. The first section describes the characteristics of GSCs and the chemotherapeutic strategies that have been used to selectively kill them. The second section outlines the nano-based delivery systems that have been developed to act against GSCs by dividing them into nontargeted and targeted nanocarriers. We also highlight the advantages of nanomedicine compared to conventional chemotherapy and examine the different targeting strategies that have been employed. The results achieved thus far are encouraging for the pursuit of effective strategies for the eradication of GSCs.
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Affiliation(s)
- Elia Bozzato
- Advanced Drug Delivery and Biomaterials, Louvain Drug Research Institute, Université Catholique de Louvain, 1200 Brussels, Belgium;
| | - Chiara Bastiancich
- Institute Neurophysiopathol, INP, CNRS, Aix-Marseille University, 13005 Marseille, France;
| | - Véronique Préat
- Advanced Drug Delivery and Biomaterials, Louvain Drug Research Institute, Université Catholique de Louvain, 1200 Brussels, Belgium;
- Correspondence:
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26
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The Diagnostic and Therapeutic Role of Leptin and Its Receptor ObR in Glioblastoma Multiforme. Cancers (Basel) 2020; 12:cancers12123691. [PMID: 33316976 PMCID: PMC7764087 DOI: 10.3390/cancers12123691] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Revised: 12/02/2020] [Accepted: 12/03/2020] [Indexed: 12/27/2022] Open
Abstract
Simple Summary Despite recent advances in molecular brain tumor therapies, glioblastoma multiforme remains a diagnostic and therapeutic challenge with, in most cases, unfavorable outcome. Leptin and related mediators of immune-metabolic traffic have attracted increased recognition in the past decade in brain tumor biology, in particular potential implications in the diagnosis and treatment of recurrent and newly diagnosed high and low grade gliomas. Randomized controlled trails are on the way to elaborate the role of leptin and its receptor ObR by targeting and using antidiabetic drugs known to interact with distinct pathways associated with leptin signaling. To date, most of the findings in clinical studies remain preliminary and of heterogenous character, although experimental studies have underpinned the relevance of leptin and ObR in the pathophysiology of brain tumors in general. Abstract Leptin has been recognized as a potential tumor growth promoter in various cancers including cranial tumor pathologies such as pituitary adenomas, meningiomas and gliomas. Despite recent advances in adjunctive therapy and the established surgical resection, chemo- and radiotherapy regimen, glioblastoma multiforme remains a particular diagnostic and therapeutic challenge among the intracranial tumor pathologies, with a poor long-term prognosis. Systemic inflammation and immune-metabolic signaling through diverse pathways are thought to impact the genesis and recurrence of brain tumors, and glioblastoma multiforme in particular. Among the various circulating mediators, leptin has gained especial diagnostic and therapeutic interest, although the precise relationship between leptin and glioblastoma biology remains largely unknown. In this narrative review (MEDLINE/OVID, SCOPUS, PubMed and manual searches of the bibliographies of known primary and review articles), we discuss the current literature using the following search terms: leptin, glioblastoma multiforme, carcinogenesis, immunometabolism, biomarkers, metformin, antidiabetic medication and metabolic disorders. An increasing body of experimental evidence implicates a relationship between the development and maintenance of gliomas (and brain tumors in general) with a dysregulated central and peripheral immune-metabolic network mediated by circulating adipokines, chemokines and cellular components, and in particular the leptin adipokine. In this review, we summarize the current evidence of the role of leptin in glioblastoma pathophysiology. In addition, we describe the status of alternative diagnostic tools and adjunctive therapeutics targeting leptin, leptin-receptors, antidiabetic drugs and associated pathways. Further experimental and clinical trials are needed to elucidate the mechanism of action and the value of immune-metabolism molecular phenotyping (central and peripheral) in order to develop novel adjunctive diagnostics and therapeutics for newly diagnosed and recurrent glioblastoma patients.
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Liu F, Xu X, Li C, Li C, Li Y, Yin S, Yu S, Chen XQ. Mannose synergizes with chemoradiotherapy to cure cancer via metabolically targeting HIF-1 in a novel triple-negative glioblastoma mouse model. Clin Transl Med 2020; 10:e226. [PMID: 33252849 PMCID: PMC7648968 DOI: 10.1002/ctm2.226] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 10/18/2020] [Accepted: 10/20/2020] [Indexed: 12/23/2022] Open
Affiliation(s)
- Feng Liu
- Department of Pathophysiology, School of Basic Medicine, Tongji Medical College, Key Laboratory of Ministry of Education for Neurological Disorders, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaohong Xu
- Department of Pathophysiology, School of Basic Medicine, Tongji Medical College, Key Laboratory of Ministry of Education for Neurological Disorders, Huazhong University of Science and Technology, Wuhan, China
| | - Chunyang Li
- Department of Pathophysiology, School of Basic Medicine, Tongji Medical College, Key Laboratory of Ministry of Education for Neurological Disorders, Huazhong University of Science and Technology, Wuhan, China
| | - Chunyan Li
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Hubei Province Key Laboratory of Molecular Imaging, Huazhong University of Science and Technology, Wuhan, China
| | - Yuanjun Li
- Department of Pathophysiology, School of Basic Medicine, Tongji Medical College, Key Laboratory of Ministry of Education for Neurological Disorders, Huazhong University of Science and Technology, Wuhan, China
| | - Songlin Yin
- Department of Pathophysiology, School of Basic Medicine, Tongji Medical College, Key Laboratory of Ministry of Education for Neurological Disorders, Huazhong University of Science and Technology, Wuhan, China
| | - Shangbin Yu
- Department of Pathophysiology, School of Basic Medicine, Tongji Medical College, Key Laboratory of Ministry of Education for Neurological Disorders, Huazhong University of Science and Technology, Wuhan, China
| | - Xiao Qian Chen
- Department of Pathophysiology, School of Basic Medicine, Tongji Medical College, Key Laboratory of Ministry of Education for Neurological Disorders, Huazhong University of Science and Technology, Wuhan, China
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Griffin M, Khan R, Basu S, Smith S. Ion Channels as Therapeutic Targets in High Grade Gliomas. Cancers (Basel) 2020; 12:cancers12103068. [PMID: 33096667 PMCID: PMC7589494 DOI: 10.3390/cancers12103068] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 10/16/2020] [Accepted: 10/19/2020] [Indexed: 12/12/2022] Open
Abstract
Simple Summary Glioblastoma multiforme is an aggressive grade IV lethal brain tumour with a median survival of 14 months. Despite surgery to remove the tumour, and subsequent concurrent chemotherapy and radiotherapy, there is little in terms of effective treatment options. Because of this, exploring new treatment avenues is vital. Brain tumours are intrinsically electrically active; expressing unique patterns of ion channels, and this is a characteristic we can exploit. Ion channels are specialised proteins in the cell’s membrane that allow for the passage of positive and negatively charged ions in and out of the cell, controlling membrane potential. Membrane potential is a crucial biophysical signal in normal and cancerous cells. Research has identified that specific classes of ion channels not only move the cell through its cell cycle, thus encouraging growth and proliferation, but may also be essential in the development of brain tumours. Inhibition of sodium, potassium, calcium, and chloride channels has been shown to reduce the capacity of glioblastoma cells to grow and invade. Therefore, we propose that targeting ion channels and repurposing commercially available ion channel inhibitors may hold the key to new therapeutic avenues in high grade gliomas. Abstract Glioblastoma multiforme (GBM) is a lethal brain cancer with an average survival of 14–15 months even with exhaustive treatment. High grade gliomas (HGG) represent the leading cause of CNS cancer-related death in children and adults due to the aggressive nature of the tumour and limited treatment options. The scarcity of treatment available for GBM has opened the field to new modalities such as electrotherapy. Previous studies have identified the clinical benefit of electrotherapy in combination with chemotherapeutics, however the mechanistic action is unclear. Increasing evidence indicates that not only are ion channels key in regulating electrical signaling and membrane potential of excitable cells, they perform a crucial role in the development and neoplastic progression of brain tumours. Unlike other tissue types, neural tissue is intrinsically electrically active and reliant on ion channels and their function. Ion channels are essential in cell cycle control, invasion and migration of cancer cells and therefore present as valuable therapeutic targets. This review aims to discuss the role that ion channels hold in gliomagenesis and whether we can target and exploit these channels to provide new therapeutic targets and whether ion channels hold the mechanistic key to the newfound success of electrotherapies.
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Affiliation(s)
- Michaela Griffin
- Children’s Brain Tumour Research Centre, Biodiscovery Institute, University of Nottingham, Nottingham NG7 2RD, UK;
| | - Raheela Khan
- Division of Medical Sciences and Graduate Entry Medicine, Royal Derby Hospital, University of Nottingham, Nottingham NG7 2RD, UK;
| | - Surajit Basu
- Department of Neurosurgery, Queen’s Medical Centre, Nottingham University Hospitals, Nottingham NG7 2RD, UK;
| | - Stuart Smith
- Children’s Brain Tumour Research Centre, Biodiscovery Institute, University of Nottingham, Nottingham NG7 2RD, UK;
- Correspondence:
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Yamada T, Tsuji S, Nakamura S, Egashira Y, Shimazawa M, Nakayama N, Yano H, Iwama T, Hara H. Riluzole enhances the antitumor effects of temozolomide via suppression of MGMT expression in glioblastoma. J Neurosurg 2020; 134:701-710. [PMID: 32168477 DOI: 10.3171/2019.12.jns192682] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Accepted: 12/30/2019] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Glutamatergic signaling significantly promotes proliferation, migration, and invasion in glioblastoma (GBM). Riluzole, a metabotropic glutamate receptor 1 inhibitor, reportedly suppresses GBM growth. However, the effects of combining riluzole with the primary GBM chemotherapeutic agent, temozolomide (TMZ), are unknown. This study aimed to investigate the efficacy of combinatorial therapy with TMZ/riluzole for GBM in vitro and in vivo. METHODS Three GBM cell lines, T98G (human; O6-methylguanine DNA methyltransferase [MGMT] positive), U87MG (human; MGMT negative), and GL261 (murine; MGMT positive), were treated with TMZ, riluzole, or a combination of both. The authors performed cell viability assays, followed by isobologram analysis, to evaluate the effects of combinatorial treatment for each GBM cell line. They tested the effect of riluzole on MGMT, a DNA repair enzyme causing chemoresistance to TMZ, through quantitative real-time reverse transcription polymerase chain reaction in T98G cells. Furthermore, they evaluated the efficacy of combinatorial TMZ/riluzole treatment in an orthotopic mouse allograft model of MGMT-positive GBM using C57BL/6 J mice and GL261 cells. RESULTS Riluzole displayed significant time- and dose-dependent growth-inhibitory effects on all GBM cell lines assessed independently. Riluzole enhanced the antitumor effect of TMZ synergistically in MGMT-positive but not in MGMT-negative GBM cell lines. Riluzole singularly suppressed MGMT expression, and it significantly suppressed TMZ-induced MGMT upregulation (p < 0.01). Furthermore, combinatorial TMZ/riluzole treatment significantly suppressed tumor growth in the intracranial MGMT-positive GBM model (p < 0.05). CONCLUSIONS Riluzole attenuates TMZ-induced MGMT upregulation and enhances the antitumor effect of TMZ in MGMT-positive GBMs. Therefore, combinatorial TMZ/riluzole treatment is a potentially promising novel therapeutic regimen for MGMT-positive GBMs.
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Affiliation(s)
- Tetsuya Yamada
- 1Molecular Pharmacology, Department of Biofunctional Evaluation, Gifu Pharmaceutical University; and.,2Department of Neurosurgery, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Shohei Tsuji
- 1Molecular Pharmacology, Department of Biofunctional Evaluation, Gifu Pharmaceutical University; and
| | - Shinsuke Nakamura
- 1Molecular Pharmacology, Department of Biofunctional Evaluation, Gifu Pharmaceutical University; and
| | - Yusuke Egashira
- 2Department of Neurosurgery, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Masamitsu Shimazawa
- 1Molecular Pharmacology, Department of Biofunctional Evaluation, Gifu Pharmaceutical University; and
| | - Noriyuki Nakayama
- 2Department of Neurosurgery, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Hirohito Yano
- 2Department of Neurosurgery, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Toru Iwama
- 2Department of Neurosurgery, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Hideaki Hara
- 1Molecular Pharmacology, Department of Biofunctional Evaluation, Gifu Pharmaceutical University; and
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Mazurek M, Litak J, Kamieniak P, Kulesza B, Jonak K, Baj J, Grochowski C. Metformin as Potential Therapy for High-Grade Glioma. Cancers (Basel) 2020; 12:E210. [PMID: 31952173 PMCID: PMC7016983 DOI: 10.3390/cancers12010210] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2019] [Revised: 01/09/2020] [Accepted: 01/13/2020] [Indexed: 12/15/2022] Open
Abstract
Metformin (MET), 1,1-dimethylbiguanide hydrochloride, is a biguanide drug used as the first-line medication in the treatment of type 2 diabetes. The recent years have brought many observations showing metformin in its new role. The drug, commonly used in the therapy of diabetes, may also find application in the therapy of a vast variety of tumors. Its effectiveness has been demonstrated in colon, breast, prostate, pancreatic cancer, leukemia, melanoma, lung and endometrial carcinoma, as well as in gliomas. This is especially important in light of the poor options offered to patients in the case of high-grade gliomas, which include glioblastoma (GBM). A thorough understanding of the mechanism of action of metformin can make it possible to discover new drugs that could be used in neoplasm therapy.
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Affiliation(s)
- Marek Mazurek
- Department of Neurosurgery and Pediatric Neurosurgery, Medical University of Lublin, Jaczewskiego 8, 20-954 Lublin, Poland; (M.M.); (J.L.); (P.K.); (B.K.)
| | - Jakub Litak
- Department of Neurosurgery and Pediatric Neurosurgery, Medical University of Lublin, Jaczewskiego 8, 20-954 Lublin, Poland; (M.M.); (J.L.); (P.K.); (B.K.)
- Department of Immunology, Medical University of Lublin, Jaczewskiego 8, 20-954 Lublin, Poland
| | - Piotr Kamieniak
- Department of Neurosurgery and Pediatric Neurosurgery, Medical University of Lublin, Jaczewskiego 8, 20-954 Lublin, Poland; (M.M.); (J.L.); (P.K.); (B.K.)
| | - Bartłomiej Kulesza
- Department of Neurosurgery and Pediatric Neurosurgery, Medical University of Lublin, Jaczewskiego 8, 20-954 Lublin, Poland; (M.M.); (J.L.); (P.K.); (B.K.)
| | - Katarzyna Jonak
- Department of Foregin Languages, Medical University of Lublin, Jaczewskiego 4, 20-090 Lublin, Poland;
| | - Jacek Baj
- Department of Anatomy, Medical University of Lublin, Jaczewskiego 4, 20-090 Lublin, Poland;
| | - Cezary Grochowski
- Department of Anatomy, Medical University of Lublin, Jaczewskiego 4, 20-090 Lublin, Poland;
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Current state and future perspective of drug repurposing in malignant glioma. Semin Cancer Biol 2019; 68:92-104. [PMID: 31734137 DOI: 10.1016/j.semcancer.2019.10.018] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 10/25/2019] [Accepted: 10/28/2019] [Indexed: 01/10/2023]
Abstract
Malignant gliomas are still extremely difficult to treat because complete surgical resection is biologically not feasible due to the invasive nature of these diseases and the proximity of tumors to functionally sensitive areas. Moreover, adjuvant therapies are facing a strong therapeutic resistance since the central nervous system is a highly protected environment and the tumor cells display a vast intra-tumoral genetic and epigenetic variation. As a consequence, new therapeutics are urgently needed but the process of developing novel compounds that finally reach clinical application is highly time-consuming and expensive. Drug repurposing is an approach to facilitate and accelerate the discovery of new cancer treatments. In malignant glioma, like in other cancers, pre-existing physiological pathways that regulate cell growth, cell death or cell migration are dysregulated causing malignant transformation. A wide variety of drugs are clinically used to treat non-cancerous diseases interfering with these malignancy-associated pathways. Repurposed drugs have key advantages: They already have approval for clinical use by national regulatory authorities. Moreover, they are for the most part inexpensive and their side effect and safety profiles are well characterized. In this work, we provide an overview on current repurposing strategies for the treatment of malignant glioma.
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Li W, Chaudhari K, Shetty R, Winters A, Gao X, Hu Z, Ge WP, Sumien N, Forster M, Liu R, Yang SH. Metformin Alters Locomotor and Cognitive Function and Brain Metabolism in Normoglycemic Mice. Aging Dis 2019; 10:949-963. [PMID: 31595194 PMCID: PMC6764722 DOI: 10.14336/ad.2019.0120] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Accepted: 01/20/2019] [Indexed: 12/12/2022] Open
Abstract
Metformin is currently the most effective treatment for type-2 diabetes. The beneficial actions of metformin have been found even beyond diabetes management and it has been considered as one of the most promising drugs that could potentially slow down aging. Surprisingly, the effect of metformin on brain function and metabolism has been less explored given that brain almost exclusively uses glucose as substrate for energy metabolism. We determined the effect of metformin on locomotor and cognitive function in normoglycemic mice. Metformin enhanced locomotor and balance performance, while induced anxiolytic effect and impaired cognitive function upon chronic treatment. We conducted in vitro assays and metabolomics analysis in mice to evaluate metformin’s action on the brain metabolism. Metformin decreased ATP level and activated AMPK pathway in mouse hippocampus. Metformin inhibited oxidative phosphorylation and elevated glycolysis by inhibiting mitochondrial glycerol-3-phosphate dehydrogenase (mGPDH) in vitro at therapeutic doses. In summary, our study demonstrated that chronic metformin treatment affects brain bioenergetics with compound effects on locomotor and cognitive brain function in non-diabetic mice.
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Affiliation(s)
- Wenjun Li
- 1Department of Pharmacology and Neuroscience University of North Texas Health Science Centre, Fort Worth, TX76107, USA
| | - Kiran Chaudhari
- 1Department of Pharmacology and Neuroscience University of North Texas Health Science Centre, Fort Worth, TX76107, USA
| | - Ritu Shetty
- 1Department of Pharmacology and Neuroscience University of North Texas Health Science Centre, Fort Worth, TX76107, USA
| | - Ali Winters
- 1Department of Pharmacology and Neuroscience University of North Texas Health Science Centre, Fort Worth, TX76107, USA
| | - Xiaofei Gao
- 2Children's Research Institute, Department of Paediatrics, University of Texas, Southwestern Medical Center, Dallas, TX 75390, USA
| | - Zeping Hu
- 2Children's Research Institute, Department of Paediatrics, University of Texas, Southwestern Medical Center, Dallas, TX 75390, USA
| | - Woo-Ping Ge
- 2Children's Research Institute, Department of Paediatrics, University of Texas, Southwestern Medical Center, Dallas, TX 75390, USA.,3Department of Neuroscience, Department of Neurology & Neurotherapeutics, University of Texas, Southwestern Medical Center, Dallas, TX 75390, USA
| | - Nathalie Sumien
- 1Department of Pharmacology and Neuroscience University of North Texas Health Science Centre, Fort Worth, TX76107, USA
| | - Michael Forster
- 1Department of Pharmacology and Neuroscience University of North Texas Health Science Centre, Fort Worth, TX76107, USA
| | - Ran Liu
- 1Department of Pharmacology and Neuroscience University of North Texas Health Science Centre, Fort Worth, TX76107, USA
| | - Shao-Hua Yang
- 1Department of Pharmacology and Neuroscience University of North Texas Health Science Centre, Fort Worth, TX76107, USA
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Zhao M, Tan B, Dai X, Shao Y, He Q, Yang B, Wang J, Weng Q. DHFR/TYMS are positive regulators of glioma cell growth and modulate chemo-sensitivity to temozolomide. Eur J Pharmacol 2019; 863:172665. [PMID: 31542479 DOI: 10.1016/j.ejphar.2019.172665] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2019] [Revised: 09/07/2019] [Accepted: 09/16/2019] [Indexed: 01/29/2023]
Abstract
Glioma is one of the most lethal malignancies and molecular regulators driving gliomagenesis are incompletely understood. Although temozolomide (TMZ) has been applied for malignant gliomas as a canonical chemotherapy, the treatment of glioma still remains limited due to frequently developed resistance to TMZ. Therefore, promising strategies that sensitize glioma cells to temozolomide are overwhelming to develop. Here we found that the expression of dihydrofolate reductase (DHFR) and thymidylate synthetase (TYMS), which played an essential role in folate metabolism and several types of tumors, were up-regulated in both human glioma tissues and cell lines, and overexpression of DHFR/TYMS promoted the proliferation of glioma cells. Notably, inhibition of DHFR/TYMS by pemetrexed exhibited synergistic anti-glioma activity with TMZ in both cell lines and U251 xenografts, which suggested potential combined chemotherapy for glioma. Mechanistically, the synergistic effect of inhibition of DHFR/TYMS with TMZ was due to activated AMPK and subsequently suppressed mTOR signaling pathway. Taken together, these findings identify an uncharacterized role of DHFR/TYMS in glioma growth and TMZ sensitivity mediated by AMPK-mTOR signal pathway, and provide a prospective approach for improving the anti-tumor activity of TMZ in glioma.
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Affiliation(s)
- Mengting Zhao
- Institute of Pharmacology and Toxicology, Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Biqin Tan
- Department of Pharmacy, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China
| | - Xiaoyang Dai
- Institute of Pharmacology and Toxicology, Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Yanfei Shao
- Department of Pharmacy, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, Zhejiang, 310014, China
| | - Qiaojun He
- Institute of Pharmacology and Toxicology, Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Bo Yang
- Institute of Pharmacology and Toxicology, Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Jincheng Wang
- Institute of Pharmacology and Toxicology, Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, China.
| | - Qinjie Weng
- Institute of Pharmacology and Toxicology, Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, China.
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Xiong ZS, Gong SF, Si W, Jiang T, Li QL, Wang TJ, Wang WJ, Wu RY, Jiang K. Effect of metformin on cell proliferation, apoptosis, migration and invasion in A172 glioma cells and its mechanisms. Mol Med Rep 2019; 20:887-894. [PMID: 31173255 PMCID: PMC6625203 DOI: 10.3892/mmr.2019.10369] [Citation(s) in RCA: 10] [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: 12/07/2017] [Accepted: 10/24/2018] [Indexed: 12/17/2022] Open
Abstract
The purpose of the present study was to determine the effects of metformin on the inhibition of proliferation, apoptosis, invasion and migration of A172 human glioma cells in vitro and determine the underlying mechanism. The effects of metformin at different concentrations (0, 0.1, 1 and 10 mmol/l) on the inhibition of A172 cell proliferation were detected using a 3‑(4,5‑dimethylthiazol‑2‑yl)‑2,5‑diphenyltetrazolium bromide assay. Cell apoptosis was detected by flow cytometry. Caspase‑3 activity was analyzed by spectrophotometry. The invasion and migration of cells were detected by Transwell assays. The levels of Bcl‑2‑associated X protein (Bax), B‑cell lymphoma 2 (Bcl‑2), AMP‑activated protein kinase (AMPK), phosphorylated‑(p)AMPK and mechanistic target of rapamycin (mTOR) protein expression were detected by western blot analysis, and changes in the malondialdehyde (MDA) content and activity of superoxide dismutase (SOD) were determined. Compared with the control group, metformin significantly increased the inhibition of proliferation and apoptosis, and significantly reduced the invasion and migration of A172 cells in dose‑ and time‑dependent manners (P<0.05). In addition, compared with the control group, metformin significantly enhanced the activity of caspase‑3, increased the expression of AMPK/pAMPK/Bax proteins and reduced the expression of mTOR/Bcl‑2 proteins (P<0.05). Metformin increased the MDA content and reduced the activity of SOD in a dose‑dependent manner (P<0.05). Metformin may inhibit glioma cell proliferation, migration and invasion, and promote its apoptosis; the effects may be associated with the AMPK/mTOR signaling pathway and oxidative stress.
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Affiliation(s)
- Zhang Sheng Xiong
- Department of Neurosurgery, Longhua District Central Hospital of Shenzhen, Shenzhen, Guangdong 518110, P.R. China
| | - Song Feng Gong
- Department of Neurosurgery, The Second People's Hospital of Shenzhen, Shenzhen, Guangdong 518000, P.R. China
| | - Wen Si
- Department of Neurosurgery, Longhua District Central Hospital of Shenzhen, Shenzhen, Guangdong 518110, P.R. China
| | - Taipeng Jiang
- Department of Neurosurgery, The Second People's Hospital of Shenzhen, Shenzhen, Guangdong 518000, P.R. China
| | - Qing Long Li
- Department of Neurosurgery, Longhua District Central Hospital of Shenzhen, Shenzhen, Guangdong 518110, P.R. China
| | - Tie Jun Wang
- Department of Neurosurgery, Longhua District Central Hospital of Shenzhen, Shenzhen, Guangdong 518110, P.R. China
| | - Wen Jie Wang
- Department of Neurosurgery, Longhua District Central Hospital of Shenzhen, Shenzhen, Guangdong 518110, P.R. China
| | - Rui Yue Wu
- Department of Neurosurgery, Longhua District Central Hospital of Shenzhen, Shenzhen, Guangdong 518110, P.R. China
| | - Kun Jiang
- Department of Neurosurgery, Longhua District Central Hospital of Shenzhen, Shenzhen, Guangdong 518110, P.R. China
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Yang C, Zhao N, Li D, Zou G, Chen Y. Metformin improves the sensitivity of ovarian cancer cells to chemotherapeutic agents. Oncol Lett 2019; 18:2404-2411. [PMID: 31402943 PMCID: PMC6676676 DOI: 10.3892/ol.2019.10564] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Accepted: 06/11/2019] [Indexed: 01/22/2023] Open
Abstract
Ovarian cancer is a common tumor of the reproductive system, and primarily responds to cytoreductive surgery and cisplatin (DDP)-based chemotherapy. However, chemoresistance results in high ovarian cancer mortality. Therefore, the aim of the present study was to investigate the effects of metformin on the apoptosis and autophagy of ovarian cancer drug-resistant SKOV3/DDP cells. To do so, MTT assay, flow cytometry, electron microscopy and western blotting were used in the present study. Metformin could inhibit the growth of SKOV3 and SKOV3/DDP cells in a concentration- and time-dependent manner (P<0.05). The half-inhibitory concentration (IC50) values of DDP and methotrexate (MTX) were 14.35 and 4.21 µg/ml for SKOV3 cells, and 70.26 and 15.27 µg/ml for SKOV3/DDP cells, respectively. In addition, the resistance index of SKOV3/DDP for DDP and MTX was 4.89 and 3.62, respectively. After combining metformin with DDP and MTX, the IC50 values for SKOV3 cells were 11.20 and 2.80 µg/ml, and 6.21 and 2.74 µg/ml for SKOV3/DDP cells, respectively. Metformin decreased the IC50 of DDP and MTX in drug-resistant cancer cells SKOV3/DDP by 11.31- and 6.18-fold. This indicated that cell proliferation was inhibited when treated with the combination of metformin and chemotherapeutic agents, compared with chemotherapeutic agents alone. In addition, autophagy was not observed in SKOV3 and SKOV3/DDP cells; however, it was observed in SKOV3/DDP cells following incubation with 10 mmol/l metformin for 48 h. Furthermore, the expression levels of microtubule-associated protein 1 light chain 3-II protein in SKOV3/DDP cells were upregulated compared with in SKOV3 cells (P<0.05). These results demonstrated that metformin can sensitize drug-resistant ovarian cancer cells to chemotherapeutic agents, and that it may be associated with the induction of autophagy.
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Affiliation(s)
- Chen Yang
- School of Medicine, Tsinghua University, Beijing 100084, P.R. China
| | - Nanan Zhao
- Department of Obstetrics and Gynecology, North China University of Science and Technology Affiliated Hospital, Tangshan, Hebei 063000, P.R. China
| | - Dandan Li
- Department of Obstetrics and Gynecology, North China University of Science and Technology Affiliated Hospital, Tangshan, Hebei 063000, P.R. China
| | - Ge Zou
- Department of Obstetrics and Gynecology, North China University of Science and Technology Affiliated Hospital, Tangshan, Hebei 063000, P.R. China
| | - Yan Chen
- Department of Obstetrics and Gynecology, North China University of Science and Technology Affiliated Hospital, Tangshan, Hebei 063000, P.R. China
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Punganuru SR, Madala HR, Arutla V, Srivenugopal KS. Selective killing of human breast cancer cells by the styryl lactone (R)-goniothalamin is mediated by glutathione conjugation, induction of oxidative stress and marked reactivation of the R175H mutant p53 protein. Carcinogenesis 2019; 39:1399-1410. [PMID: 30010803 DOI: 10.1093/carcin/bgy093] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Accepted: 06/21/2018] [Indexed: 01/01/2023] Open
Abstract
The molecular basis of anticancer and apoptotic effects of R-goniothalamin (GON), a plant secondary metabolite was studied. We show that induction of oxidative stress and reactivation of mutant p53 underlie the strong cytotoxic effects of GON against the breast cancer cells. While GON was not toxic to the MCF10a breast epithelial cells, the SKBR3 breast cancer cells harboring an R175H mutant p53 were highly sensitive (IC50 = 7.3 µM). Flow cytometry and other pertinent assays showed that GON-induced abundant reactive oxygen species (ROS), glutathione depletion, protein glutathionylation and activation of apoptotic markers. GON was found to conjugate with glutathione both in vitro and in cells and the product was characterized by mass spectrometry. We hypothesized that the redox imbalance induced by GON may affect the structure of the R175H mutant p53 protein, and account for greater cytotoxicity. Using the SKBR3 breast cancer and p53-null H1299 lung cancer cells stably expressing the R175H p53 mutant protein, we demonstrated that GON triggers the appearance of a wild-type-like p53 protein by using conformation-specific antibodies, immunoprecipitation, DNA-binding assays and target gene expression. p53 restoration was associated with a G2/M arrest, senescence, reduced cell migration, invasion and increased cell death. GON elicited a highly synergistic cytotoxicity with cisplatin in SKBR3 cells. In SKBR3 xenografts developed in nude mice, there was a marked tumor growth delay by GON alone and GON + cisplatin combination. Our studies highlight the impact of tumor redox-stress generated by GON in activating the mutant p53 protein for greater antitumor efficacy.
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Affiliation(s)
- Surendra R Punganuru
- Department of Pharmaceutical Sciences, School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX, USA
| | - Hanumantha Rao Madala
- Department of Pharmaceutical Sciences, School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX, USA
| | - Viswanath Arutla
- Department of Pharmaceutical Sciences, School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX, USA
| | - Kalkunte S Srivenugopal
- Department of Pharmaceutical Sciences, School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX, USA
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Seliger C, Genbrugge E, Gorlia T, Chinot O, Stupp R, Nabors B, Weller M, Hau P. Use of metformin and outcome of patients with newly diagnosed glioblastoma: Pooled analysis. Int J Cancer 2019; 146:803-809. [PMID: 30980539 DOI: 10.1002/ijc.32337] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 03/11/2019] [Accepted: 03/18/2019] [Indexed: 01/03/2023]
Abstract
Metformin has been linked to improve survival of patients with various cancers. There is little information on survival of glioblastoma patients after use of metformin. We assessed the association between metformin use and survival in a pooled analysis of patient data from 1,731 individuals from the randomized AVAglio, CENTRIC and CORE trials. We performed multivariate Cox analyses for overall survival (OS) and progression-free survival (PFS) comparing patients' use of metformin at baseline and/or during concomitant radiochemotherapy (TMZ/RT). Further exploratory analyses investigated the effect of metformin with a history of diabetes and nonfasting glucose levels in relation to OS or PFS of glioblastoma patients. Metformin alone or in any combination was not significantly associated with OS or PFS (at baseline, hazard ratio [HR] for OS = 0.87; 95% confidence interval [CI] = 0.65-1.16; HR for PFS = 0.84; 95% CI = 0.64-1.10; during TMZ/RT HR for OS = 0.97; 95% CI = 0.68-1.38; HR for PFS = 1.02; 95% CI = 0.74-1.41). We found a statistically nonsignificant association of metformin monotherapy with glioblastoma survival at baseline (HR for OS = 0.68; 95% CI = 0.42-1.10; HR for PFS = 0.57; 95% CI = 0.36-0.91), but not during the TMZ/RT period (HR for OS = 0.90; 95% CI = 0.51-1.56; HR for PFS = 1.05; 95% CI = 0.64-1.73). Diabetes mellitus or increased nonfasting glucose levels were not associated with a difference in OS or PFS in our selected study population. Metformin did not prolong survival of patients with newly diagnosed glioblastoma in our analysis. Additional studies may identify patients with specific tumor characteristics that are associated with potential benefit from treatment with metformin, possibly due to metabolic vulnerabilities.
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Affiliation(s)
- Corinna Seliger
- Department of Neurology and Wilhelm Sander-NeuroOncology Unit, Regensburg University Hospital, Regensburg, Germany
| | | | | | - Olivier Chinot
- Aix-Marseille University, APHM, CNRS, INP, Institute of Neurophysiopathology, CHU Timone, Service de Neuro-Oncologie, Marseille, France
| | - Roger Stupp
- Malnati Brain Tumor Institute of the Lurie Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Burt Nabors
- Department of Neurology and Cancer Center, University of Alabama at Birmingham, Birmingham, Alabama
| | - Michael Weller
- Department of Neurology, University Hospital and University of Zurich, Zurich, Switzerland
| | - Peter Hau
- Department of Neurology and Wilhelm Sander-NeuroOncology Unit, Regensburg University Hospital, Regensburg, Germany
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Alarcón S, Niechi I, Toledo F, Sobrevia L, Quezada C. Glioma progression in diabesity. Mol Aspects Med 2019; 66:62-70. [DOI: 10.1016/j.mam.2019.02.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Revised: 02/12/2019] [Accepted: 02/19/2019] [Indexed: 12/29/2022]
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Sugimori M, Hayakawa Y, Tamura R, Kuroda S. The combined efficacy of OTS964 and temozolomide for reducing the size of power-law coded heterogeneous glioma stem cell populations. Oncotarget 2019; 10:2397-2415. [PMID: 31040930 PMCID: PMC6481323 DOI: 10.18632/oncotarget.26800] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2019] [Accepted: 03/04/2019] [Indexed: 01/06/2023] Open
Abstract
Glioblastoma resists chemotherapy then recurs as a fatal space-occupying lesion. To improve the prognosis, the issues of chemoresistance and tumor size should be addressed. Glioma stem cell (GSC) populations, a heterogeneous power-law coded population in glioblastoma, are believed to be responsible for the recurrence and progressive expansion of tumors. Thus, we propose a therapeutic strategy of reducing the initial size and controlling the regrowth of GSC populations which directly facilitates initial and long-term control of glioblastoma recurrence. In this study, we administered an anti-glioma/GSC drug temozolomide (TMZ) and OTS964, an inhibitor for T-Lak cell originated protein kinase, in combination (T&O), investigating whether together they efficiently and substantially shrink the initial size of power-law coded GSC populations and slow the long-term re-growth of drug-resistant GSC populations. We employed a detailed quantitative approach using clonal glioma sphere (GS) cultures, measuring sphere survivability and changes to growth during the self-renewal. T&O eliminated self-renewing GS clones and suppressed their growth. We also addressed whether T&O reduced the size of self-renewed GS populations. T&O quickly reduced the size of GS populations via efficient elimination of GS clones. The growth of the surviving T&O-resistant GS populations was continuously disturbed, leading to substantial long-term shrinkage of the self-renewed GS populations. Thus, T&O reduced the initial size of GS populations and suppressed their later regrowth. A combination therapy of TMZ and OTS964 would represent a novel therapeutic paradigm with the potential for long-term control of glioblastoma recurrence via immediate and sustained shrinkage of power-law coded heterogeneous GSC populations.
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Affiliation(s)
- Michiya Sugimori
- Department of Integrative Neuroscience, University of Toyama, Toyama, Toyama 930-0194, Japan
| | - Yumiko Hayakawa
- Department of Neurosurgery, University of Toyama, Toyama, Toyama 930-0194, Japan
| | - Ryoi Tamura
- Department of Integrative Neuroscience, University of Toyama, Toyama, Toyama 930-0194, Japan
| | - Satoshi Kuroda
- Department of Neurosurgery, University of Toyama, Toyama, Toyama 930-0194, Japan
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Barbieri F, Verduci I, Carlini V, Zona G, Pagano A, Mazzanti M, Florio T. Repurposed Biguanide Drugs in Glioblastoma Exert Antiproliferative Effects via the Inhibition of Intracellular Chloride Channel 1 Activity. Front Oncol 2019; 9:135. [PMID: 30918838 PMCID: PMC6424887 DOI: 10.3389/fonc.2019.00135] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Accepted: 02/14/2019] [Indexed: 12/12/2022] Open
Abstract
The lack of in-depth knowledge about the molecular determinants of glioblastoma (GBM) occurrence and progression, combined with few effective and BBB crossing-targeted compounds represents a major challenge for the discovery of novel and efficacious drugs for GBM. Among relevant molecular factors controlling the aggressive behavior of GBM, chloride intracellular channel 1 (CLIC1) represents an emerging prognostic and predictive biomarker, as well as a promising therapeutic target. CLIC1 is a metamorphic protein, co-existing as both soluble cytoplasmic and membrane-associated conformers, with the latter acting as chloride selective ion channel. CLIC1 is involved in several physiological cell functions and its abnormal expression triggers tumor development, favoring tumor cell proliferation, invasion, and metastasis. CLIC1 overexpression is associated with aggressive features of various human solid tumors, including GBM, in which its expression level is correlated with poor prognosis. Moreover, increasing evidence shows that modification of microglia ion channel activity, and CLIC1 in particular, contributes to the development of different neuropathological states and brain tumors. Intriguingly, CLIC1 is constitutively active within cancer stem cells (CSCs), while it seems less relevant for the survival of non-CSC GBM subpopulations and for normal cells. CSCs represent GBM development and progression driving force, being endowed with stem cell-like properties (self-renewal and differentiation), ability to survive therapies, to expand and differentiate, causing tumor recurrence. Downregulation of CLIC1 results in drastic inhibition of GBM CSC proliferation in vitro and in vivo, making the control of the activity this of channel a possible innovative pharmacological target. Recently, drugs belonging to the biguanide class (including metformin) were reported to selectively inhibit CLIC1 activity in CSCs, impairing their viability and invasiveness, but sparing normal stem cells, thus representing potential novel antitumor drugs with a safe toxicological profile. On these premises, we review the most recent insights into the biological role of CLIC1 as a potential selective pharmacological target in GBM. Moreover, we examine old and new drugs able to functionally target CLIC1 activity, discussing the challenges and potential development of CLIC1-targeted therapies.
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Affiliation(s)
- Federica Barbieri
- Sezione di Farmacologia, Dipartimento di Medicina Interna & Centro di Eccellenza per la Ricerca Biomedica, Università di Genoa, Genoa, Italy
| | - Ivan Verduci
- Dipartimento di Biotecnologie Mediche e Medicina Traslazionale, Università degli Studi di Milano, Milan, Italy
| | - Valentina Carlini
- Dipartimento di Biotecnologie Mediche e Medicina Traslazionale, Università degli Studi di Milano, Milan, Italy
| | - Gianluigi Zona
- Dipartimento di Neuroscienze, Riabilitazione, Oftalmologia, Genetica e Scienze Materno-Infantili, Università di Genoa, Genoa, Italy.,IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - Aldo Pagano
- IRCCS Ospedale Policlinico San Martino, Genoa, Italy.,Dipartimento di Medicina Sperimentale, Università di Genoa, Genoa, Italy
| | - Michele Mazzanti
- Dipartimento di Biotecnologie Mediche e Medicina Traslazionale, Università degli Studi di Milano, Milan, Italy
| | - Tullio Florio
- Sezione di Farmacologia, Dipartimento di Medicina Interna & Centro di Eccellenza per la Ricerca Biomedica, Università di Genoa, Genoa, Italy.,IRCCS Ospedale Policlinico San Martino, Genoa, Italy
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Xin M, Wang Y, Ren Q, Guo Y. Formononetin and metformin act synergistically to inhibit growth of MCF-7 breast cancer cells in vitro. Biomed Pharmacother 2018; 109:2084-2089. [PMID: 30551465 DOI: 10.1016/j.biopha.2018.09.033] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Revised: 09/02/2018] [Accepted: 09/05/2018] [Indexed: 01/29/2023] Open
Abstract
Many breast cancer patients suffer from obvious side effects induced by chemotherapy. Formononetin (FM), one kind ingredient of Chinese herbal medicine, has been suggested to inhibit MCF-7 breast cancer cells. And recently metformin (MET) has gained more attention as a potential anti-cancer drug. The aim of this study was to investigate the synergistic effects of FM and MET on the proliferation of MCF-7 cells and to clarify the possible molecular mechanism involved. MCF-7 cells were treated with various concentrations of FM (40 and 80 μM) or FM (40 and 80 μM) combined with MET (150 μM) for 48 h. Cell proliferation was tested by an methyl tetrazolium (MTT) (3-(4, 5-dimethylthiazol-2-yl)-2, 5-diphenyl tetrazolium bromide) assay. The percentage of apoptotic cells was measured by flow cytometry. The expression level of b-cell lymphoma/leukemia-2 (bcl-2) mRNA was examined by RT-PCR, while the expression levels of phosphorylated extracellular signal-regulated kinases (p-ERK1/2) and bcl-2 protein were detected by Western blotting. Compared with untreated cells, 40 μM and 80 μM FM efficiently inhibited proliferation and increased apoptosis in MCF-7 cells. Additionally, 40 μM and 80 μM FM greatly downregulated bcl-2 mRNA expression when compared with untreated cells. Furthermore, the protein expression of bcl-2 and p-ERK1/2 was significantly reduced by 40 μM and 80 μM FM. The cytotoxic effect of FM was more remarkable when 150 μM MET was added. Taken together, the combinational use of FM and MET enhanced cell growth inhibition, and the induction of apoptosis in MCF-7 cells mediated by the ERK1/2 signaling pathway.
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Affiliation(s)
- Min Xin
- Department of Physiology, Guilin Medical University, Guilin 541004, PR China
| | - Yong Wang
- Department of Physiology, Guilin Medical University, Guilin 541004, PR China; Key Laboratory of Tumor Immunology and Microenvironmental Regulation, Guilin Medical University, Guilin 541004, PR China
| | - Qianyao Ren
- Key Laboratory of Tumor Immunology and Microenvironmental Regulation, Guilin Medical University, Guilin 541004, PR China
| | - Yanhong Guo
- Department of Physiology, Guilin Medical University, Guilin 541004, PR China.
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43
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Seliger C, Luber C, Gerken M, Schaertl J, Proescholdt M, Riemenschneider MJ, Meier CR, Bogdahn U, Leitzmann MF, Klinkhammer-Schalke M, Hau P. Use of metformin and survival of patients with high-grade glioma. Int J Cancer 2018; 144:273-280. [PMID: 30091464 DOI: 10.1002/ijc.31783] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Revised: 07/03/2018] [Accepted: 07/25/2018] [Indexed: 12/12/2022]
Abstract
High-grade glioma (HGG) is associated with poor prognosis. Drug repurposing evolves as new modality to improve standard therapy. The antidiabetic drug metformin has been found to inhibit glioma cell growth in vitro and in vivo. The aim of the present retrospective cohort study was to evaluate the survival of patients with HGG with or without treatment with metformin, based on a large cohort of a cancer registry. The analysis included 1,093 patients with HGG diagnosed between 1998 and 2013 from the population-based clinical cancer registry Regensburg (Germany), which covers 2.1 Mio inhabitants and 98% of all cancer diagnoses. We performed multivariable adjusted Cox-regression analyses. Hazard Ratios (HRs) with 95% Confidence Intervals (CIs) for overall survival (OS) and progression-free survival (PFS) of patients with HGG with or without treatment with metformin were obtained. Use of metformin was associated with a significantly better overall and progression-free survival of patients with WHO grade III glioma (HR for OS = 0.30; 95% CI = 0.11-0.81, HR for PFS = 0.29; 95% CI = 0.11-0.78), while there were no significant relations with OS (HR = 0.83; 95% CI = 0.57-1.20) or PFS (HR = 0.85; 95% CI = 0.59-1.22) in patients with WHO grade IV glioma. In conclusion, use of metformin is associated with better overall and progression-free survival of patients with WHO grade III. Possible underlying mechanisms include the higher prevalence of IDH mutations in WHO grade III glioma, which might sensitize to the metabolic drug metformin.
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Affiliation(s)
- Corinna Seliger
- Department of Neurology and Wilhelm Sander-NeuroOncology Unit, Regensburg University Hospital, Regensburg, Germany
| | - Christian Luber
- Department of Neurology and Wilhelm Sander-NeuroOncology Unit, Regensburg University Hospital, Regensburg, Germany
| | - Michael Gerken
- Institute for Quality Assurance and Health Services Research, University of Regensburg, Regensburg, Germany
| | - Julia Schaertl
- Department of Neurology and Wilhelm Sander-NeuroOncology Unit, Regensburg University Hospital, Regensburg, Germany
| | - Martin Proescholdt
- Department of Neurosurgery, Regensburg University Hospital, Regensburg, Germany
| | | | - Christoph R Meier
- Basel Pharmacoepidemiology Unit, Division of CIinical Pharmacy and Epidemiology, Department of Pharmaceutical Sciences, University of Basel, Switzerland.,Boston Collaborative Drug Surveillance Program, Boston University School of Public Health, Boston University, USA.,Department of Pharmaceutical Sciences, Hospital Pharmacy, University Hospital Basel, Switzerland
| | - Ulrich Bogdahn
- Department of Neurology and Wilhelm Sander-NeuroOncology Unit, Regensburg University Hospital, Regensburg, Germany
| | - Michael F Leitzmann
- Department of Epidemiology and Preventive Medicine, Institute of Epidemiology and Preventive Medicine, University of Regensburg, Regensburg, Germany
| | - Monika Klinkhammer-Schalke
- Institute for Quality Assurance and Health Services Research, University of Regensburg, Regensburg, Germany
| | - Peter Hau
- Department of Neurology and Wilhelm Sander-NeuroOncology Unit, Regensburg University Hospital, Regensburg, Germany
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44
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Harder BG, Blomquist MR, Wang J, Kim AJ, Woodworth GF, Winkles JA, Loftus JC, Tran NL. Developments in Blood-Brain Barrier Penetrance and Drug Repurposing for Improved Treatment of Glioblastoma. Front Oncol 2018; 8:462. [PMID: 30406029 PMCID: PMC6206841 DOI: 10.3389/fonc.2018.00462] [Citation(s) in RCA: 94] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Accepted: 10/01/2018] [Indexed: 12/26/2022] Open
Abstract
Glioblastoma (GBM) is one of the most common, deadly, and difficult-to-treat adult brain tumors. Surgical removal of the tumor, followed by radiotherapy (RT) and temozolomide (TMZ) administration, is the current treatment modality, but this regimen only modestly improves overall patient survival. Invasion of cells into the surrounding healthy brain tissue prevents complete surgical resection and complicates treatment strategies with the goal of preserving neurological function. Despite significant efforts to increase our understanding of GBM, there have been relatively few therapeutic advances since 2005 and even fewer treatments designed to effectively treat recurrent tumors that are resistant to therapy. Thus, while there is a pressing need to move new treatments into the clinic, emerging evidence suggests that key features unique to GBM location and biology, the blood-brain barrier (BBB) and intratumoral molecular heterogeneity, respectively, stand as critical unresolved hurdles to effective therapy. Notably, genomic analyses of GBM tissues has led to the identification of numerous gene alterations that govern cell growth, invasion and survival signaling pathways; however, the drugs that show pre-clinical potential against signaling pathways mediated by these gene alterations cannot achieve effective concentrations at the tumor site. As a result, identifying BBB-penetrating drugs and utilizing new and safer methods to enhance drug delivery past the BBB has become an area of intensive research. Repurposing and combining FDA-approved drugs with evidence of penetration into the central nervous system (CNS) has also seen new interest for the treatment of both primary and recurrent GBM. In this review, we discuss emerging methods to strategically enhance drug delivery to GBM and repurpose currently-approved and previously-studied drugs using rational combination strategies.
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Affiliation(s)
- Bryan G Harder
- Departments of Cancer Biology and Neurosurgery, Mayo Clinic Arizona, Scottsdale, AZ, United States
| | - Mylan R Blomquist
- Departments of Cancer Biology and Neurosurgery, Mayo Clinic Arizona, Scottsdale, AZ, United States
| | - Junwen Wang
- Department of Health Sciences Research, Center for Individualized Medicine, Mayo Clinic Arizona, Scottsdale, AZ, United States
| | - Anthony J Kim
- Department of Neurosurgery, University of Maryland School of Medicine, Baltimore, MD, United States
| | - Graeme F Woodworth
- Department of Neurosurgery, University of Maryland School of Medicine, Baltimore, MD, United States
| | - Jeffrey A Winkles
- Department of Surgery, University of Maryland School of Medicine, Baltimore, MD, United States
| | - Joseph C Loftus
- Department of Biochemistry and Molecular Biology, Mayo Clinic Arizona, Scottsdale, AZ, United States
| | - Nhan L Tran
- Departments of Cancer Biology and Neurosurgery, Mayo Clinic Arizona, Scottsdale, AZ, United States
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Bi Y, Li H, Yi D, Sun Y, Bai Y, Zhong S, Song Y, Zhao G, Chen Y. Cordycepin Augments the Chemosensitivity of Human Glioma Cells to Temozolomide by Activating AMPK and Inhibiting the AKT Signaling Pathway. Mol Pharm 2018; 15:4912-4925. [PMID: 30336060 DOI: 10.1021/acs.molpharmaceut.8b00551] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Glioblastoma multiforme (GBM) is the most commonly encountered subtype of deadly brain cancer in human adults. It has a high recurrence rate and shows aggressive proliferation. The novel cytotoxic agent temozolomide (TMZ) is now frequently applied as the first-line chemotherapeutic treatment for GBM; however, a considerable number of patients treated with TMZ turn out to be refractory to this drug. Hence, a more effective therapeutic approach is urgently required to overcome this critical issue. Accumulating evidence has shown that both AMPK and AKT are activated by TMZ, while only AMPK contributes to apoptosis via mammalian target of rapamycin (mTOR) inhibition. Accordingly, AKT increases the tumorigenicity and chemoresistance of various tumor cells. In addition, AKT overexpression increases the resistance of glioma cells to TMZ. Cordycepin, a major bioactive component in Cordyceps militaris, exhibits immunomodulatory, anticancer, antioxidant, and anti-inflammatory activities, among other therapeutic effects. To date, whether GBM sensitivity to TMZ can be enhanced by cordycepin largely remains unknown. In the present study, we evaluated the effect of the combined use of cordycepin and TMZ in the treatment of GBM and explored the molecular mechanisms. Notably, we found that treatment with cordycepin led to inhibition of cellular proliferation, migration, and invasion as well as cellular apoptosis and cell cycle arrest in glioma cell lines in vitro. Likewise, the combined treatment with both cordycepin and TMZ synergistically resulted in inhibition of cellular growth, migration, and tumor metastasis as well as induction of cellular apoptosis and cell cycle arrest. Moreover, we also demonstrated that cordycepin effectively enhanced the activation of AMPK and suppressed the activity of AKT, whose activation was only induced by TMZ. Furthermore, there was an apparent reduction in the expression levels of p-mTOR, p-p70S6K, matrix metalloproteinase (MMP)-2, and MMP-9 in the group treated with both cordycepin and TMZ, in comparison with those in the groups treated with either cordycepin or TMZ alone. In vivo, the combination therapy also obviously reduced the tumor volume as well as prolonged the median survival time of xenograft models. In brief, our results suggested that cordycepin augments TMZ sensitivity in human glioma cells at least partially through activation of AMPK and suppression of the AKT signaling pathway. Overall, the combination therapy of cordycepin and TMZ potentially provides a novel option for a better prognosis of patients with GBM in clinical practice.
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Affiliation(s)
- Yiming Bi
- Department of Neurosurgery , The First Hospital of Jilin University , 130000 Changchun , China
| | - Han Li
- Department of Respiratory Medicine , The Second Hospital of Jilin University , 130000 Changchun , China
| | - Dazhuang Yi
- Department of Neurosurgery , The First Hospital of Jilin University , 130000 Changchun , China
| | - Yuxue Sun
- Department of Neurosurgery , The First Hospital of Jilin University , 130000 Changchun , China
| | - Yang Bai
- Department of Neurosurgery , The First Hospital of Jilin University , 130000 Changchun , China
| | - Sheng Zhong
- Department of Neurosurgery , The First Hospital of Jilin University , 130000 Changchun , China
| | - Yang Song
- Department of Neurosurgery , The First Hospital of Jilin University , 130000 Changchun , China
| | - Gang Zhao
- Department of Neurosurgery , The First Hospital of Jilin University , 130000 Changchun , China
| | - Yong Chen
- Department of Neurosurgery , The First Hospital of Jilin University , 130000 Changchun , China
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JIAPAER S, FURUTA T, TANAKA S, KITABAYASHI T, NAKADA M. Potential Strategies Overcoming the Temozolomide Resistance for Glioblastoma. Neurol Med Chir (Tokyo) 2018; 58:405-421. [PMID: 30249919 PMCID: PMC6186761 DOI: 10.2176/nmc.ra.2018-0141] [Citation(s) in RCA: 192] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Accepted: 07/31/2018] [Indexed: 12/14/2022] Open
Abstract
Glioblastoma (GBM) is a highly malignant type of primary brain tumor with a high mortality rate. Although the current standard therapy consists of surgery followed by radiation and temozolomide (TMZ), chemotherapy can extend patient's post-operative survival but most cases eventually demonstrate resistance to TMZ. O6-methylguanine-DNA methyltransferase (MGMT) repairs the main cytotoxic lesion, as O6-methylguanine, generated by TMZ, can be the main mechanism of the drug resistance. In addition, mismatch repair and BER also contribute to TMZ resistance. TMZ treatment can induce self-protective autophagy, a mechanism by which tumor cells resist TMZ treatment. Emerging evidence also demonstrated that a small population of cells expressing stem cell markers, also identified as GBM stem cells (GSCs), contributes to drug resistance and tumor recurrence owing to their ability for self-renewal and invasion into neighboring tissue. Some molecules maintain stem cell properties. Other molecules or signaling pathways regulate stemness and influence MGMT activity, making these GCSs attractive therapeutic targets. Treatments targeting these molecules and pathways result in suppression of GSCs stemness and, in highly resistant cases, a decrease in MGMT activity. Recently, some novel therapeutic strategies, targeted molecules, immunotherapies, and microRNAs have provided new potential treatments for highly resistant GBM cases. In this review, we summarize the current knowledge of different resistance mechanisms, novel strategies for enhancing the effect of TMZ, and emerging therapeutic approaches to eliminate GSCs, all with the aim to produce a successful GBM treatment and discuss future directions for basic and clinical research to achieve this end.
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Affiliation(s)
| | - Takuya FURUTA
- Department of Pathology, Kurume University, Kurume, Fukuoka, Japan
| | - Shingo TANAKA
- Department of Neurosurgery, Kanazawa University, Kanazawa, Ishikawa, Japan
| | | | - Mitsutoshi NAKADA
- Department of Neurosurgery, Kanazawa University, Kanazawa, Ishikawa, Japan
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Drug Repurposing of Metabolic Agents in Malignant Glioma. Int J Mol Sci 2018; 19:ijms19092768. [PMID: 30223473 PMCID: PMC6164672 DOI: 10.3390/ijms19092768] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Revised: 09/10/2018] [Accepted: 09/11/2018] [Indexed: 12/21/2022] Open
Abstract
Gliomas are highly invasive brain tumors with short patient survival. One major pathogenic factor is aberrant tumor metabolism, which may be targeted with different specific and unspecific agents. Drug repurposing is of increasing interest in glioma research. Drugs interfering with the patient’s metabolism may also influence glioma metabolism. In this review, we outline definitions and methods for drug repurposing. Furthermore, we give insights into important candidates for a metabolic drug repurposing, namely metformin, statins, non-steroidal anti-inflammatory drugs, disulfiram and lonidamine. Advantages and pitfalls of drug repurposing will finally be discussed.
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Bai Y, Chen Y, Hong X, Liu X, Su X, Li S, Dong X, Zhao G, Li Y. Newcastle disease virus enhances the growth-inhibiting and proapoptotic effects of temozolomide on glioblastoma cells in vitro and in vivo. Sci Rep 2018; 8:11470. [PMID: 30065314 PMCID: PMC6068118 DOI: 10.1038/s41598-018-29929-y] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Accepted: 07/09/2018] [Indexed: 12/21/2022] Open
Abstract
Glioblastoma (GBM) is the most serious and most common brain tumor in humans. Despite recent advances in the diagnosis of GBM and the development of new treatments, the prognosis of patients has not improved. Multidrug resistance, particularly resistance to temozolomide (TMZ), is a challenge in combating glioma, and more effective therapies are needed. Complementary treatment with the LaSota strain of the naturally oncolytic Newcastle disease virus (NDV-LaSota) is an innovation. In our experiments, the combination therapy of NDV-LaSota and temozolomide (TMZ) was more effective than either treatment alone in inducing apoptosis in glioma cells. NDV can function as a tumor cell selective approach to inhibit AKT and activate AMPK. Consequently, mTOR, 4EBP1 and S6K were also suppressed. The combination therapy of NDV and TMZ also significantly extended survival in a rat xenograft tumor model. In conclusion, NDV suppress AKT signaling and enhances antitumor effects of TMZ. Our study provides one of the theoretical basis for the use of a combined therapy of TMZ and NDV, which could benefit GBM patients.
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Affiliation(s)
- Yang Bai
- Department of Neurosurgery, First Hospital of Jilin University, Changchun, China
| | - Yong Chen
- Department of Neurosurgery, First Hospital of Jilin University, Changchun, China
| | - Xinyu Hong
- Department of Neurosurgery, First Hospital of Jilin University, Changchun, China
| | - Xinrui Liu
- Department of Neurosurgery, First Hospital of Jilin University, Changchun, China
| | - Xing Su
- Laboratory of Cancer Precision Medicine, First Hospital of Jilin University, Changchun, China
| | - Shanji Li
- Department of Neurosurgery, First Hospital of Jilin University, Changchun, China
| | - Xuechao Dong
- Department of Neurosurgery, First Hospital of Jilin University, Changchun, China
| | - Gang Zhao
- Department of Neurosurgery, First Hospital of Jilin University, Changchun, China.
| | - Yunqian Li
- Department of Neurosurgery, First Hospital of Jilin University, Changchun, China.
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Al Hassan M, Fakhoury I, El Masri Z, Ghazale N, Dennaoui R, El Atat O, Kanaan A, El-Sibai M. Metformin Treatment Inhibits Motility and Invasion of Glioblastoma Cancer Cells. Anal Cell Pathol (Amst) 2018; 2018:5917470. [PMID: 30046513 PMCID: PMC6038689 DOI: 10.1155/2018/5917470] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Revised: 04/07/2018] [Accepted: 04/18/2018] [Indexed: 01/08/2023] Open
Abstract
Glioblastoma multiforme (GBM) is one of the most common and deadliest cancers of the central nervous system (CNS). GBMs high ability to infiltrate healthy brain tissues makes it difficult to remove surgically and account for its fatal outcomes. To improve the chances of survival, it is critical to screen for GBM-targeted anticancer agents with anti-invasive and antimigratory potential. Metformin, a commonly used drug for the treatment of diabetes, has recently emerged as a promising anticancer molecule. This prompted us, to investigate the anticancer potential of metformin against GBMs, specifically its effects on cell motility and invasion. The results show a significant decrease in the survival of SF268 cancer cells in response to treatment with metformin. Furthermore, metformin's efficiency in inhibiting 2D cell motility and cell invasion in addition to increasing cellular adhesion was also demonstrated in SF268 and U87 cells. Finally, AKT inactivation by downregulation of the phosphorylation level upon metformin treatment was also evidenced. In conclusion, this study provides insights into the anti-invasive antimetastatic potential of metformin as well as its underlying mechanism of action.
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Affiliation(s)
- Marwa Al Hassan
- Department of Natural Sciences, School of Arts and Sciences, Lebanese American University, Beirut, Lebanon
| | - Isabelle Fakhoury
- Department of Natural Sciences, School of Arts and Sciences, Lebanese American University, Beirut, Lebanon
| | - Zeinab El Masri
- Department of Natural Sciences, School of Arts and Sciences, Lebanese American University, Beirut, Lebanon
| | - Noura Ghazale
- Department of Natural Sciences, School of Arts and Sciences, Lebanese American University, Beirut, Lebanon
| | - Rayane Dennaoui
- Department of Natural Sciences, School of Arts and Sciences, Lebanese American University, Beirut, Lebanon
| | - Oula El Atat
- Department of Natural Sciences, School of Arts and Sciences, Lebanese American University, Beirut, Lebanon
| | - Amjad Kanaan
- Department of Biomedical Sciences, Faculty of Medicine and Medical Sciences, University of Balamand, El-Kurah, Lebanon
| | - Mirvat El-Sibai
- Department of Natural Sciences, School of Arts and Sciences, Lebanese American University, Beirut, Lebanon
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50
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Yu Z, Chen Y, Wang S, Li P, Zhou G, Yuan Y. Inhibition of NF-κB results in anti-glioma activity and reduces temozolomide-induced chemoresistance by down-regulating MGMT gene expression. Cancer Lett 2018; 428:77-89. [PMID: 29705182 DOI: 10.1016/j.canlet.2018.04.033] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Revised: 04/23/2018] [Accepted: 04/23/2018] [Indexed: 12/21/2022]
Abstract
The introduction of temozolomide (TMZ) has improved chemotherapy for malignant gliomas. However, many gliomas are refractory to TMZ, so there is a pressing need for more effective therapeutic options. Here we demonstrated that glioma specimens and cell lines have constitutively high levels of nuclear factor κB (NF-κB) activity. Notably, the expression levels of this transcription factor correlated with malignant grades in glioblastoma multiforme (GBM) and inversely correlated with overall survival. Conversely, knockdown of NF-κB inhibits glioma cell proliferation and treating a panel of established glioma cell lines with pharmacological NF-κB inhibitors markedly decreased glioma viability, led to S cell cycle arrest, and induced apoptosis. We also found a significant correlation between NF-κB expression and O6-methylguanine-DNA methyltransferase (MGMT) expression in gliomas with different origins, and immunohistochemistry confirmed these findings. Genetic or pharmacological (especially parthenolide) inhibition of NF-κB activity down-regulated MGMT gene expression and substantially restored TMZ chemosensitivity in vitro and in vivo. Importantly, the TMZ sensitizing effect of siNF-κB(p65) or parthenolide were rescued by MGMT cDNA expression. These findings suggest that NF-κB is a potential target for inducing cell death in gliomas. A targeted combination strategy in which the response to TMZ is synergistically enhanced by the addition of parthenolide which may be useful, especially in chemoresistant gliomas with high MGMT expression.
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Affiliation(s)
- Zhiyun Yu
- Department of Neurosurgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
| | - Yong Chen
- Department of Neurosurgery, The First Hospital of Jilin University, Changchun, China
| | - Shiqiang Wang
- Chongqing Key Laboratory of Translational Research for Cancer Metastasis and Individualized Treatment, Chongqing University Cancer Hospital & Chongqing Cancer Institute & Chongqing Cancer Hospital, Chongqing, 400030, China
| | - Pengliang Li
- Department of Neurosurgery, The First Hospital of Jilin University, Changchun, China
| | - Guangtong Zhou
- Department of Neurosurgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yongjie Yuan
- Department of Interventional Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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