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Yakubov E, Schmid S, Hammer A, Chen D, Dahlmanns JK, Mitrovic I, Zurabashvili L, Savaskan N, Steiner HH, Dahlmanns M. Ferroptosis and PPAR-gamma in the limelight of brain tumors and edema. Front Oncol 2023; 13:1176038. [PMID: 37554158 PMCID: PMC10406130 DOI: 10.3389/fonc.2023.1176038] [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: 02/28/2023] [Accepted: 07/04/2023] [Indexed: 08/10/2023] Open
Abstract
Human malignant brain tumors such as gliomas are devastating due to the induction of cerebral edema and neurodegeneration. A major contributor to glioma-induced neurodegeneration has been identified as glutamate. Glutamate promotes cell growth and proliferation in variety of tumor types. Intriguently, glutamate is also an excitatory neurotransmitter and evokes neuronal cell death at high concentrations. Even though glutamate signaling at the receptor and its downstream effectors has been extensively investigated at the molecular level, there has been little insight into how glutamate enters the tumor microenvironment and impacts on metabolic equilibration until recently. Surprisingly, the 12 transmembrane spanning tranporter xCT (SLC7A11) appeared to be a major player in this process, mediating glutamate secretion and ferroptosis. Also, PPARγ is associated with ferroptosis in neurodegeneration, thereby destroying neurons and causing brain swelling. Although these data are intriguing, tumor-associated edema has so far been quoted as of vasogenic origin. Hence, glutamate and PPARγ biology in the process of glioma-induced brain swelling is conceptually challenging. By inhibiting xCT transporter or AMPA receptors in vivo, brain swelling and peritumoral alterations can be mitigated. This review sheds light on the role of glutamate in brain tumors presenting the conceptual challenge that xCT disruption causes ferroptosis activation in malignant brain tumors. Thus, interfering with glutamate takes center stage in forming the basis of a metabolic equilibration approach.
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Affiliation(s)
- Eduard Yakubov
- Department of Neurosurgery, Paracelsus Medical University, Nuremberg, Germany
| | - Sebastian Schmid
- Department of Trauma, Orthopaedics, Plastic and Hand Surgery, University Hospital Augsburg, Augsburg, Germany
| | - Alexander Hammer
- Department of Neurosurgery, Paracelsus Medical University, Nuremberg, Germany
- Center for Spine and Scoliosis Therapy, Malteser Waldkrankenhaus St. Marien, Erlangen, Germany
| | - Daishi Chen
- Department of Otorhinolaryngology, Shenzhen People's Hospital, Jinan University, Shenzhen, China
| | - Jana Katharina Dahlmanns
- Institute for Physiology and Pathophysiology, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Erlangen, Germany
| | - Ivana Mitrovic
- Department of Cardiac Surgery, Bogenhausen Hospital, Munich, Germany
| | | | - Nicolai Savaskan
- Department of Neurosurgery, University Medical School Hospital Universitätsklinikum Erlangen (UKER), Friedrich-Alexander Universität (FAU) Erlangen-Nürnberg, Erlangen, Germany
- Department of Public Health Neukölln, District Office Neukölln of Berlin Neukölln, Berlin, Germany
| | | | - Marc Dahlmanns
- Institute for Physiology and Pathophysiology, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Erlangen, Germany
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2
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Silver nanoparticles potentiate antitumor and oxidant actions of cisplatin via the stimulation of TRPM2 channel in glioblastoma tumor cells. Chem Biol Interact 2023; 369:110261. [PMID: 36403784 DOI: 10.1016/j.cbi.2022.110261] [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: 09/13/2022] [Revised: 10/30/2022] [Accepted: 11/10/2022] [Indexed: 11/18/2022]
Abstract
We investigated the effects of silver nanoparticle (AgNP) and cisplatin (CiSP) exposure via the activation of TRPM2 cation channels in glioblastoma (DBTRG-05MG) cell line. The cells were divided into four groups as control, AgNPs (100 μg/ml for 48 h), CiSP (25 μM for 24 h), and CiSP + AgNPs. We found that the cytotoxic, oxidant and apoptotic actions of CiSP were further stimulated through the activation of TRPM2 (via ADP-ribose and H2O2) in the cells by the treatment of AgNPs. The actions were decreased in the cells by the treatments of TRPM2 antagonists (ACA and 2APB). The apoptotic actions of AgNPs were induced by the stimulation of propidium iodide positive DBTRG-05MG rate, caspase -3, caspase -8, and caspase -9 activations, although their oxidant actions were acted by the increase of mitochondrial membrane depolarization, lipid peroxidation, mitochondrial oxygen free radicals (ROS), and cytosolic ROS, but the decrease of total antioxidant status, glutathione, and glutathione peroxidase. The accumulation of cytosolic free Ca2+ and Zn2+ into mitochondria via the activation of TRPM2 current density and activity accelerated oxidant and apoptotic actions of AgNPs in the cells. We found that the combination of AgNPs and CiSP was synergistic via the stimulation of TRPM2 for treatment of DBTRG-05MG cells. The combination of AgNPs and CiSP showed a favorable action via the stimulation of TRPM2 in the treatment of glioblastoma tumor cells.
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3
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Garbo S, Di Giacomo S, Łażewska D, Honkisz-Orzechowska E, Di Sotto A, Fioravanti R, Zwergel C, Battistelli C. Selenium-Containing Agents Acting on Cancer-A New Hope? Pharmaceutics 2022; 15:pharmaceutics15010104. [PMID: 36678733 PMCID: PMC9860877 DOI: 10.3390/pharmaceutics15010104] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 12/18/2022] [Accepted: 12/24/2022] [Indexed: 12/29/2022] Open
Abstract
Selenium-containing agents are more and more considered as an innovative potential treatment option for cancer. Light is shed not only on the considerable advancements made in understanding the complex biology and chemistry related to selenium-containing small molecules but also on Se-nanoparticles. Numerous Se-containing agents have been widely investigated in recent years in cancer therapy in relation to tumour development and dissemination, drug delivery, multidrug resistance (MDR) and immune system-related (anti)cancer effects. Despite numerous efforts, Se-agents apart from selenocysteine and selenomethionine have not yet reached clinical trials for cancer therapy. The purpose of this review is to provide a concise critical overview of the current state of the art in the development of highly potent target-specific Se-containing agents.
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Affiliation(s)
- Sabrina Garbo
- Department of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 324, 00161 Rome, Italy
| | - Silvia Di Giacomo
- Department of Physiology and Pharmacology “V. Erspamer”, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Dorota Łażewska
- Department of Technology and Biotechnology of Drugs, Faculty of Pharmacy, Jagiellonian University Medical College in Kraków, Medyczna 9, 30-688 Kraków, Poland
| | - Ewelina Honkisz-Orzechowska
- Department of Technology and Biotechnology of Drugs, Faculty of Pharmacy, Jagiellonian University Medical College in Kraków, Medyczna 9, 30-688 Kraków, Poland
| | - Antonella Di Sotto
- Department of Physiology and Pharmacology “V. Erspamer”, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Rossella Fioravanti
- Department of Drug Chemistry and Technologies, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Clemens Zwergel
- Department of Drug Chemistry and Technologies, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
- Correspondence: (C.Z.); (C.B.)
| | - Cecilia Battistelli
- Department of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 324, 00161 Rome, Italy
- Correspondence: (C.Z.); (C.B.)
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4
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Shi Y, Han L, Zhang X, Xie L, Pan P, Chen F. Selenium Alleviates Cerebral Ischemia/Reperfusion Injury by Regulating Oxidative Stress, Mitochondrial Fusion and Ferroptosis. Neurochem Res 2022; 47:2992-3002. [PMID: 35725978 PMCID: PMC9470641 DOI: 10.1007/s11064-022-03643-8] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 05/18/2022] [Accepted: 05/19/2022] [Indexed: 11/29/2022]
Abstract
To clarify the potential role of selenium (Se) on cerebral ischemia/reperfusion (I/R) injury, we utilized mouse middle cerebral artery occlusion (MCAO) followed by reperfusion as an animal model and oxygen-glucose deprivation and reoxygenation (OGD/R) to treat N2a cells as a cell model, respectively. MCAO model was established in mice and then divided into different groups with or without Se treatment. TTC staining was used to observe whether the cerebral I/R modeling was successful, and the apoptosis level was determined by TUNEL staining. The expression of GPx-4 and p22phox was assessed by western blot. In vitro experiments, the OGD/R induced oxidative stress in N2a cells was assessed by levels of GSH/GSSG, malondialdehyde, superoxide dismutase and iron content, respectively. QRT-PCR was used to detect the mRNA levels of Cox-2, Fth1, Mfn1 and mtDNA in N2a cells. JC-1 staining and flow cytometry was performed to detect the mitochondrial membrane potential. Se treatment alleviated cerebral I/R injury and improved the survival rate of mice. Additionally, Se treatment apparently attenuated oxidative stress and inhibited iron accumulation in MCAO model mice and OGD/R model of N2a cells. In terms of its mechanism, Se could up-regulate Mfn1 expression to alleviate oxidative stress and ferroptosis by promoting mitochondrial fusion in vivo and vitro. These findings suggest that Se may have great potential in alleviating cerebral I/R injury.
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Affiliation(s)
- Yuanyuan Shi
- Department of Central Laboratory, The Yancheng School of Clinical Medicine of Nanjing Medical University (Yancheng Third People’s Hospital), Yancheng, 224008 Jiangsu China
| | - Lijian Han
- Department of Neurology, The Yancheng School of Clinical Medicine of Nanjing Medical University (Yancheng Third People’s Hospital), Yancheng, 224008 Jiangsu China
| | - Xianxian Zhang
- Department of Neurology, The Yancheng School of Clinical Medicine of Nanjing Medical University (Yancheng Third People’s Hospital), Yancheng, 224008 Jiangsu China
| | - Lili Xie
- Department of Neurology, The Yancheng School of Clinical Medicine of Nanjing Medical University (Yancheng Third People’s Hospital), Yancheng, 224008 Jiangsu China
| | - Pinglei Pan
- Department of Central Laboratory, The Yancheng School of Clinical Medicine of Nanjing Medical University (Yancheng Third People’s Hospital), Yancheng, 224008 Jiangsu China
| | - Fei Chen
- Department of Central Laboratory, The Yancheng School of Clinical Medicine of Nanjing Medical University (Yancheng Third People’s Hospital), Yancheng, 224008 Jiangsu China
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5
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Al-Otaibi AM, Al-Gebaly AS, Almeer R, Albasher G, Al-Qahtani WS, Abdel Moneim AE. Potential of green-synthesized selenium nanoparticles using apigenin in human breast cancer MCF-7 cells. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:47539-47548. [PMID: 35182347 DOI: 10.1007/s11356-022-19166-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Accepted: 02/07/2022] [Indexed: 06/14/2023]
Abstract
The utilization of novel compounds as cancer treatments offers enormous potential in this field. The advantages of nanomedicine-based therapy include efficient cellular uptake and selective cell targeting. In this study, we employ selenium nanoparticles' green-synthesized by apigenin (SeNPs-apigenin) to treat breast cancer. We used various assays to show that SeNPs-apigenin can reduce MCF-7 cell viability and trigger apoptosis in vitro. Flow cytometry and PCR methods were used to detect apoptosis, while cell migration and invasion methods were used to quantify the possible effect of SeNPs-apigenin therapy on cell migration and invasion. According to cytotoxicity testing, the SeNPs-apigenin treatment can successfully limit MCF-7 cell proliferation and viability in a concentration-dependent manner. Flow cytometric and PCR analyses revealed that SeNPs-apigenin treatment induced apoptosis in MCF-7 cells, demonstrating that SeNPs-apigenin treatment could directly target Bcl-2, Bax, and caspase-3 and result in the discharge of cytochrome C from mitochondria into the cytosol, accompanied by the initiation of cell death, leading to permanent DNA damage and killing of MCF-7 cells. Furthermore, treatment with SeNPs-apigenin increased reactive oxygen species production and oxidative stress in MCF-7 cells. Our findings indicate that SeNPs-apigenin has cytotoxic potential in the treatment of breast cancer.
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Affiliation(s)
- Aljohra M Al-Otaibi
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Asma S Al-Gebaly
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Rafa Almeer
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Gadah Albasher
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Wedad S Al-Qahtani
- Department of Forensic Sciences, College of Forensic Justice, Naif Arab University for Security Sciences, Riyadh, Saudi Arabia
| | - Ahmed E Abdel Moneim
- Department of Zoology and Entomology, Faculty of Science, Helwan University, Cairo, Egypt.
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6
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Role of TRPM2 in brain tumours and potential as a drug target. Acta Pharmacol Sin 2022; 43:759-770. [PMID: 34108651 DOI: 10.1038/s41401-021-00679-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Accepted: 04/07/2021] [Indexed: 02/06/2023] Open
Abstract
Ion channels are ubiquitously expressed in almost all living cells, and are the third-largest category of drug targets, following enzymes and receptors. The transient receptor potential melastatin (TRPM) subfamily of ion channels are important to cell function and survival. Studies have shown upregulation of the TRPM family of ion channels in various brain tumours. Gliomas are the most prevalent form of primary malignant brain tumours with no effective treatment; thus, drug development is eagerly needed. TRPM2 is an essential ion channel for cell function and has important roles in oxidative stress and inflammation. In response to oxidative stress, ADP-ribose (ADPR) is produced, and in turn activates TRPM2 by binding to the NUDT9-H domain on the C-terminal. TRPM2 has been implicated in various cancers and is significantly upregulated in brain tumours. This article reviews the current understanding of TRPM2 in the context of brain tumours and overviews the effects of potential drug therapies targeting TRPM2 including hydrogen peroxide (H2O2), curcumin, docetaxel and selenium, paclitaxel and resveratrol, and botulinum toxin. It is long withstanding knowledge that gliomas are difficult to treat effectively, therefore investigating TRPM2 as a potential therapeutic target for brain tumours may be of considerable interest in the fields of ion channels and pharmacology.
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7
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Dahlmanns M, Yakubov E, Dahlmanns JK. Genetic Profiles of Ferroptosis in Malignant Brain Tumors and Off-Target Effects of Ferroptosis Induction. Front Oncol 2021; 11:783067. [PMID: 34926298 PMCID: PMC8671613 DOI: 10.3389/fonc.2021.783067] [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: 09/25/2021] [Accepted: 11/15/2021] [Indexed: 12/13/2022] Open
Abstract
Glioblastoma represents the most devastating form of human brain cancer, associated with a very poor survival rate of patients. Unfortunately, treatment options are currently limited and the gold standard pharmacological treatment with the chemotherapeutic drug temozolomide only slightly increases the survival rate. Experimental studies have shown that the efficiency of temozolomide can be improved by inducing ferroptosis – a recently discovered form of cell death, which is different from apoptosis, necrosis, or necroptosis and, which is characterized by lipid peroxidation and reactive oxygen species accumulation. Ferroptosis can also be activated to improve treatment of malignant stages of neuroblastoma, meningioma, and glioma. Due to their role in cancer treatment, ferroptosis-gene signatures have recently been evaluated for their ability to predict survival of patients. Despite positive effects during chemotherapy, the drugs used to induce ferroptosis – such as erastin and sorafenib – as well as genetic manipulation of key players in ferroptosis – such as the cystine-glutamate exchanger xCT and the glutathione peroxidase GPx4 – also impact neuronal function and cognitive capabilities. In this review, we give an update on ferroptosis in different brain tumors and summarize the impact of ferroptosis on healthy tissues.
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Affiliation(s)
- Marc Dahlmanns
- Institute for Physiology and Pathophysiology, Friedrich-Alexander-University Erlangen-Nuremberg, Erlangen, Germany
| | - Eduard Yakubov
- Department of Neurosurgery, Paracelsus Medical University, Nuremberg, Germany
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8
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Mechanisms of the Cytotoxic Effect of Selenium Nanoparticles in Different Human Cancer Cell Lines. Int J Mol Sci 2021; 22:ijms22157798. [PMID: 34360564 PMCID: PMC8346078 DOI: 10.3390/ijms22157798] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 07/17/2021] [Accepted: 07/20/2021] [Indexed: 02/06/2023] Open
Abstract
In recent decades, studies on the functional features of Se nanoparticles (SeNP) have gained great popularity due to their high biocompatibility, stability, and pronounced selectivity. A large number of works prove the anticarcinogenic effect of SeNP. In this work, the molecular mechanisms regulating the cytotoxic effects of SeNP, obtained by laser ablation, were studied by the example of four human cancer cell lines: A-172 (glioblastoma), Caco-2, (colorectal adenocarcinoma), DU-145 (prostate carcinoma), MCF-7 (breast adenocarcinoma). It was found that SeNP had different concentration-dependent effects on cancer cells of the four studied human lines. SeNP at concentrations of less than 1 μg/mL had no cytotoxic effect on the studied cancer cells, with the exception of the A-172 cell line, for which 0.5 μg/mL SeNP was the minimum concentration affecting its metabolic activity. It was shown that SeNP concentration-dependently caused cancer cell apoptosis, but not necrosis. In addition, it was found that SeNP enhanced the expression of pro-apoptotic genes in almost all cancer cell lines, with the exception of Caco-2 and activated various pathways of adaptive and pro-apoptotic signaling pathways of UPR. Different effects of SeNP on the expression of ER-resident selenoproteins and selenium-containing glutathione peroxidases and thioredoxin reductases, depending on the cell line, were established. In addition, SeNP triggered Ca2+ signals in all investigated cancer cell lines. Different sensitivity of cancer cell lines to SeNP can determine the induction of the process of apoptosis in them through regulation of the Ca2+ signaling system, mechanisms of ER stress, and activation of various expression patterns of genes encoding pro-apoptotic proteins.
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9
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Yakubov E, Eibl T, Hammer A, Holtmannspötter M, Savaskan N, Steiner HH. Therapeutic Potential of Selenium in Glioblastoma. Front Neurosci 2021; 15:666679. [PMID: 34121995 PMCID: PMC8194316 DOI: 10.3389/fnins.2021.666679] [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: 02/10/2021] [Accepted: 05/04/2021] [Indexed: 01/06/2023] Open
Abstract
Little progress has been made in the long-term management of malignant brain tumors, leaving patients with glioblastoma, unfortunately, with a fatal prognosis. Glioblastoma remains the most aggressive primary brain cancer in adults. Similar to other cancers, glioblastoma undergoes a cellular metabolic reprogramming to form an oxidative tumor microenvironment, thereby fostering proliferation, angiogenesis and tumor cell survival. Latest investigations revealed that micronutrients, such as selenium, may have positive effects in glioblastoma treatment, providing promising chances regarding the current limitations in surgical treatment and radiochemotherapy outcomes. Selenium is an essential micronutrient with anti-oxidative and anti-cancer properties. There is additional evidence of Se deficiency in patients suffering from brain malignancies, which increases its importance as a therapeutic option for glioblastoma therapy. It is well known that selenium, through selenoproteins, modulates metabolic pathways and regulates redox homeostasis. Therefore, selenium impacts on the interaction in the tumor microenvironment between tumor cells, tumor-associated cells and immune cells. In this review we take a closer look at the current knowledge about the potential of selenium on glioblastoma, by focusing on brain edema, glioma-related angiogenesis, and cells in tumor microenvironment such as glioma-associated microglia/macrophages.
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Affiliation(s)
- Eduard Yakubov
- Department of Neurosurgery, Paracelsus Medical University, Nuremberg, Germany
| | - Thomas Eibl
- Department of Neurosurgery, Paracelsus Medical University, Nuremberg, Germany
| | - Alexander Hammer
- Department of Neurosurgery, Paracelsus Medical University, Nuremberg, Germany
| | | | - Nicolai Savaskan
- Department of Neurosurgery, University Medical School Hospital, Universitätsklinikum Erlangen (UKER), Friedrich-Alexander University Erlangen-Nürnberg (FAU), Erlangen, Germany.,BiMECON Ent., Berlin, Germany
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10
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Nazıroğlu M, Öz A, Yıldızhan K. Selenium and Neurological Diseases: Focus on Peripheral Pain and TRP Channels. Curr Neuropharmacol 2021; 18:501-517. [PMID: 31903884 PMCID: PMC7457405 DOI: 10.2174/1570159x18666200106152631] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Revised: 11/26/2019] [Accepted: 01/04/2020] [Indexed: 12/18/2022] Open
Abstract
Pain is a complex physiological process that includes many components. Growing evidence supports the idea that oxidative stress and Ca2+ signaling pathways participate in pain detection by neurons. The main source of endogenous reactive oxygen species (ROS) is mitochondrial dysfunction induced by membrane depolarization, which is in turn caused by Ca2+ influx into the cytosol of neurons. ROS are controlled by antioxidants, including selenium. Selenium plays an important role in the nervous system, including the brain, where it acts as a cofactor for glutathione peroxidase and is incorporated into selenoproteins involved in antioxidant defenses. It has neuroprotective effects through modulation of excessive ROS production, inflammation, and Ca2+ overload in several diseases, including inflammatory pain, hypersensitivity, allodynia, diabetic neuropathic pain, and nociceptive pain. Ca2+ entry across membranes is mediated by different channels, including transient receptor potential (TRP) channels, some of which (e.g., TRPA1, TRPM2, TRPV1, and TRPV4) can be activated by oxidative stress and have a role in the induction of peripheral pain. The results of recent studies indicate the modulator roles of selenium in peripheral pain through inhibition of TRP channels in the dorsal root ganglia of experimental animals. This review summarizes the protective role of selenium in TRP channel regulation, Ca2+ signaling, apoptosis, and mitochondrial oxidative stress in peripheral pain induction.
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Affiliation(s)
- Mustafa Nazıroğlu
- Neuroscience Research Center, Suleyman Demirel University, Isparta, Turkey.,Department of Biophysics, Faculty of Medicine, Suleyman Demirel University, Isparta, Turkey.,Drug Discovery Unit, BSN Health, Analysis and Innovation Ltd. Inc. Teknokent, Isparta, Turkey
| | - Ahmi Öz
- Department of Biophysics, Faculty of Medicine, Suleyman Demirel University, Isparta, Turkey
| | - Kenan Yıldızhan
- Department of Biophysics, Faculty of Medicine, Suleyman Demirel University, Isparta, Turkey
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Planeta K, Setkowicz Z, Janik-Olchawa N, Matusiak K, Ryszawy D, Drozdz A, Janeczko K, Ostachowicz B, Chwiej J. Comparison of Elemental Anomalies Following Implantation of Different Cell Lines of Glioblastoma Multiforme in the Rat Brain: A Total Reflection X-ray Fluorescence Spectroscopy Study. ACS Chem Neurosci 2020; 11:4447-4459. [PMID: 33205959 PMCID: PMC7747222 DOI: 10.1021/acschemneuro.0c00648] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Accepted: 11/09/2020] [Indexed: 12/20/2022] Open
Abstract
Glioblastoma multiforme (GBM) is a primary brain tumor with a very high degree of malignancy and is classified by WHO as a glioma IV. At present, the treatment of patients suffering from GBM is based on surgical resection of the tumor with maximal protection of surrounding tissues followed by radio- and pharmacological therapy using temozolomide as the most frequently recommended drug. This strategy, however, does not guarantee success and has devastating consequences. Testing of new substances or therapies having potential in the treatment of GBM as well as detection of their side effects cannot be done on humans. Animal models of the disease are usually used for these purposes, and one possibility is the implantation of human tumor cells into rodent brains. Such a solution was used in the present study the purpose of which was comparison of elemental anomalies appearing in the brain as a result of implantation of different glioblastoma cell lines. These were two commercially available cell lines (U87MG and T98G), as well as tumor cells taken directly from a patient diagnosed with GBM. Using total reflection X-ray fluorescence we determined the contents of P, S, K, Ca, Fe, Cu, Zn, and Se in implanted-left and intact-right brain hemispheres. The number of elemental anomalies registered for both hemispheres was positively correlated with the invasiveness of GBM cells and was the highest for animals subjected to U87MG cell implantation, which presented significant decrease of P, K, and Cu levels and an increase of Se concentration within the left hemisphere. The abnormality common for all three groups of animals subjected to glioma cell implantation was increased Fe level in the brain, which may result from higher blood supply or the presence of hemorrhaging regions. In the case of the intact hemisphere, elevated Fe concentration may also indicate higher neuronal activity caused by taking over some functions of the left hemisphere impaired as a result of tumor growth.
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Affiliation(s)
- Karolina Planeta
- AGH
University of Science and Technology, Faculty of Physics and Applied Computer Science, Krakow 30-059, Poland
| | - Zuzanna Setkowicz
- Jagiellonian
University, Institute of Zoology
and Biomedical Research, Krakow 31-007, Poland
| | - Natalia Janik-Olchawa
- AGH
University of Science and Technology, Faculty of Physics and Applied Computer Science, Krakow 30-059, Poland
| | - Katarzyna Matusiak
- AGH
University of Science and Technology, Faculty of Physics and Applied Computer Science, Krakow 30-059, Poland
| | - Damian Ryszawy
- Jagiellonian
University, Faculty of Biochemistry,
Biophysics, and Biotechnology, Krakow 31-007, Poland
| | - Agnieszka Drozdz
- AGH
University of Science and Technology, Faculty of Physics and Applied Computer Science, Krakow 30-059, Poland
| | - Krzysztof Janeczko
- Jagiellonian
University, Institute of Zoology
and Biomedical Research, Krakow 31-007, Poland
| | - Beata Ostachowicz
- AGH
University of Science and Technology, Faculty of Physics and Applied Computer Science, Krakow 30-059, Poland
| | - Joanna Chwiej
- AGH
University of Science and Technology, Faculty of Physics and Applied Computer Science, Krakow 30-059, Poland
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12
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Heydari M, Shayanfar M, Sharifi G, Saneei P, Sadeghi O, Esmaillzadeh A. The Association between Dietary Total Antioxidant Capacity and Glioma in Adults. Nutr Cancer 2020; 73:1947-1956. [PMID: 32912000 DOI: 10.1080/01635581.2020.1817954] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
OBJECTIVE We assessed the relation between dietary total antioxidant capacity (TAC) and risk of glioma among Iranian adults. Design: A hospital-based case-control study. Setting: This case-control investigation was done in 2011. Usual dietary intakes of participants during the preceding year were examined using a food frequency questionnaire. Data on dietary TAC from foods was gathered from published databases that provided the antioxidant capacity for each food item, measured by ferric reducing antioxidant power. Participants: Cases were individuals with pathologically confirmed glioma that were diagnosed during the last month (n = 128). Controls were individuals, aged between 20 and 75 years, who were hospitalized or were outpatients referred to other wards of the same hospitals (n = 256). Results: Compared with participants in the lowest quartile, those in the highest quartile of dietary TAC had a lower odds of glioma (OR: 0.28, 95%CI: 0.15-0.45). This association was strengthened when potential confounders were taken into account (OR: 0.13; 95%CI: 0.05-0.35). Such inverse association was also seen for men (OR: 0.05, 95%CI: 0.01-0.19), but not for women. Furthermore, significant inverse associations were seen between dietary intakes of vitamin C (OR for Q4 vs. Q1: 0.14, 95%CI: 0.05-0.36; P-trend < 0.01), vitamin B6 (OR for Q4 vs. Q1: 0.35, 95%CI: 0.13-0.97; P-trend = 0.02) and β-carotene (OR for Q3 vs. Q1: 0.43, 95%CI: 0.19-0.98; P-trend = 0.57) and glioma, after controlling for potential covariates. Conclusions: We found that dietary TAC as well as dietary intake of vitamin C, vitamin B6, and β-carotene was inversely associated with odds of glioma in adults.
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Affiliation(s)
- Marzieh Heydari
- Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mehdi Shayanfar
- Department of Clinical Nutrition and Dietetics, National Nutrition and Food Technology Research Institute, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Giuve Sharifi
- Department of Clinical Nutrition and Dietetics, National Nutrition and Food Technology Research Institute, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Parvane Saneei
- Food Security Research Center, Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Omid Sadeghi
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
| | - Ahmad Esmaillzadeh
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran.,Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
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13
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Özkal B, Övey İS. Selenium enhances TRPA1 channel-mediated activity of temozolomide in SH-SY5Y neuroblastoma cells. Childs Nerv Syst 2020; 36:1283-1292. [PMID: 32146544 DOI: 10.1007/s00381-020-04567-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Accepted: 02/28/2020] [Indexed: 12/24/2022]
Abstract
PURPOSE Neuroblastoma is a malignant solid tumor that originates from the sympathetic nervous system in early childhood. Temozolomide is used for treatment in high-risk groups with low treatment response of neuroblastomas. TRPA1 channels in neuroblastoma cells are calcium permeable channels that can be activated by reactive oxygen species (ROT). In this study, we aimed to evaluate the level of activity of temozolomide and selenium in neuroblastoma cells via TRPA1 channels. METHOD Seven main groups were formed using SH-SY5Y neuroblastoma cells. The control was divided into temozolomide (TMZ) (100 μM, 24 h), TMZ+SEL+AP18, SEL (sodium selenite, 100 μM, 24 h), and SEL+AP18 groups. Intergroup calcium signaling, intracellular reactive oxygen species, caspase-3 and caspase-9, and mitochondrial depolarization analyses were performed by channel activation with TRPA1 agonist cinnamaldehyde in all groups. RESULTS Cytosolic calcium concentration, apoptosis, caspase-3 and caspase-9 activation, mitochondrial membrane depolarization, and ROT levels were higher in TMZ (p < 0.001), TMZ+SEL (p < 0.001), and SEL (p < 0.05) groups than the control group. TRPA1 was lower in TTMZ+AP18, TMZ+SEL+AP18, and SEL+AP18 groups with channel blockers than respectively TMZ, TMZ+SEL, and SEL groups without channel blockers (p < 0.05). CONCLUSION The use of selenium with temozolomide increased the apoptotic efficacy of temozolomide via TRPA1 channels on tumor cells.
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Affiliation(s)
- Birol Özkal
- Department of Neurosurgery, School of Medicine, Alanya Alaaddin Keykubat University, 07400, Alanya, Antalya, Turkey.
| | - İshak Suat Övey
- Department of Pysiology, School of Medicine, Alanya Alaaddin Keykubat University, 07400, Alanya, Antalya, Turkey
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14
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Jelińska M, Skrajnowska D, Wrzosek M, Domanska K, Bielecki W, Zawistowska M, Bobrowska Korczak B. Inflammation factors and element supplementation in cancer. J Trace Elem Med Biol 2020; 59:126450. [PMID: 31931255 DOI: 10.1016/j.jtemb.2019.126450] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 12/29/2019] [Accepted: 12/30/2019] [Indexed: 12/28/2022]
Abstract
The aim of the study was to evaluate the effect of dietary supplementation with chosen minerals (Zn, Se, Fe) on expression of selected cytokines (IL-1, IL-6, TNFα) in spleen of rats and on their concentrations in rat serum under inflammatory and pathological conditions obtained by implantation of prostate cancer cells (LnCaP). Serum levels of metabolites of arachidonic, eicosapentaenoic and linoleic acids (hydroxyeicosatetraenoic, hydroxyeicosapentaenoic and hydroxyoctadecadienoic acids, respectively), as compounds involved in inflammation and cancer development, were also investigated. Male rats were randomised into dietary groups supplemented with Zn, Se or Fe. Prostate cancer cells were implanted to some rats in each group. The study demonstrated that minerals supplemented with the diet may exert various effects on an organism. Selenium, zinc and iron influence pro-inflammatory cytokine expression, what leads to stimulation of inflammation. They also affect synthesis of arachidonic and linoleic acid metabolites that exert pro-inflammatory action and enable cancer development and metastasis.
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Affiliation(s)
- Małgorzata Jelińska
- Department of Bromatology, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1, 02-097, Warsaw, Poland
| | - Dorota Skrajnowska
- Department of Bromatology, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1, 02-097, Warsaw, Poland
| | - Małgorzata Wrzosek
- Department of Biochemistry and Pharmacogenomics, Faculty of Pharmacy and Laboratory of Biochemistry and Clinical Chemistry at the Preclinical Research Center, Medical University of Warsaw, Banacha 1, 02-097, Warsaw, Poland
| | - Kamila Domanska
- Department of Bromatology, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1, 02-097, Warsaw, Poland
| | - Wojciech Bielecki
- Department of Pathology and Veterinary Diagnostics, Warsaw University of Life Sciences, Nowoursynowska 159 c, 02-776, Warsaw, Poland
| | - Marta Zawistowska
- Department of Bromatology, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1, 02-097, Warsaw, Poland
| | - Barbara Bobrowska Korczak
- Department of Bromatology, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1, 02-097, Warsaw, Poland.
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15
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Özkaya D, Nazıroğlu M. Curcumin diminishes cisplatin-induced apoptosis and mitochondrial oxidative stress through inhibition of TRPM2 channel signaling pathway in mouse optic nerve. J Recept Signal Transduct Res 2020; 40:97-108. [PMID: 32019426 DOI: 10.1080/10799893.2020.1720240] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Background: Cisplatin (CiSP), a chemotherapeutic agent, is widely used to treat several types of cancers. However, its clinical use is limited due to adverse side effects caused by excessive production of reactive oxygen species (ROS) and death of neurons. The transient receptor potential (TRP) melastatin 2 (TRPM2) cation channel is activated by ADP-ribose (ADPR) and ROS. The protective effect of curcumin (CURCU) against CiSP-induced apoptosis and mitochondrial ROS through inhibition of TRP channels in several types of neuron except optic nerve, was recently reported. The aim of the current study is to clarify the protective effect of CURCU on CiSP-induced mitochondrial oxidative injury and TRPM2 activation in the mice optic nerve and SH-SY5Y human derived neuronal cells.Material and methods: The SH-SY5Y cells and mice were divided into four groups: Control, CURCU, CiSP, and CURCU + CiSP. The mice were treated for 14 days and the cells were incubated with CiSP and CURCU for 24 h.Results: CURCU and PARP-1 inhibitor (PJ34) treatments ameliorated CiSP-induced mitochondrial membrane depolarization, mitochondrial and cytosolic ROS levels and neuronal death in the optic nerve. In the patch-clamp of SH-SY5Y cells and laser confocal microscopy experiments of optic nerve, CURCU and TRPM2 blocker treatments also decreased ADPR-induced TRPM2 currents and cytosolic free calcium ion (Ca2+) concentration, suggesting a suppression of Ca2+ influx and neuronal death.Conclusion: CURCU prevents CiSP-induced optic nerve oxidative injury and cell death by suppressing mitochondrial ROS production via regulating TRPM2 signaling pathways. CURCU may serve as a potential therapeutic target against CiSP-induced toxicity in the optic nerve of CiSP-treated patients.
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Affiliation(s)
- Dilek Özkaya
- Departmant of Ophthalmology, Faculty of Medicine, Suleyman Demirel University, Isparta, Turkey
| | - Mustafa Nazıroğlu
- Neuroscience Research Center, Suleyman Demirel University, Isparta, Turkey.,Drug Discovery Unit, BSN Health, Analyses, Innovation, Consultancy, Organization, Agriculture, Industry and Trade Limited Company, Göller Bölgesi Teknokenti, Isparta, Turkey
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16
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Kuršvietienė L, Mongirdienė A, Bernatonienė J, Šulinskienė J, Stanevičienė I. Selenium Anticancer Properties and Impact on Cellular Redox Status. Antioxidants (Basel) 2020; 9:antiox9010080. [PMID: 31963404 PMCID: PMC7023255 DOI: 10.3390/antiox9010080] [Citation(s) in RCA: 85] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 01/07/2020] [Accepted: 01/15/2020] [Indexed: 12/25/2022] Open
Abstract
(1) Background: In this review, we provide information published in recent years on the chemical forms, main biological functions and especially on antioxidant and prooxidant activities of selenium. The main focus is put on the impact of selenoproteins on maintaining cellular redox balance and anticancerogenic function. Moreover, we summarize data on chemotherapeutic application of redox active selenium compounds. (2) Methods: In the first section, main aspects of metabolism and redox activity of selenium compounds is reviewed. The second outlines multiple biological functions, asserted when selenium is incorporated into the structure of selenoproteins. The final section focuses on anticancer activity of selenium and chemotherapeutic application of redox active selenium compounds as well. (3) Results: optimal dietary level of selenium ensures its proper antioxidant and anticancer activity. We pay special attention to antioxidant activities of selenium compounds, especially selenoproteins, and their importance in antioxidant defence. It is worth noting, that data on selenium anticancer properties is still contraversive. Moreover, selenium compounds as chemotherapeutic agents usually are used at supranutritional doses. (4) Conclusions: Selenium play a vital role for many organism systems due to its incorporation into selenoproteins structure. Selenium possesses antioxidant activity at optimal doses, while at supranutritional doses, it displays prooxidant activity. Redox active selenium compounds can be used for cancer treatment; recently special attention is put to selenium containing nanoparticles.
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Affiliation(s)
- Lolita Kuršvietienė
- Department of Biochemistry, Lithuanian University of Health Sciences, LT-50161 Kaunas, Lithuania; (L.K.); (A.M.); (J.Š.)
| | - Aušra Mongirdienė
- Department of Biochemistry, Lithuanian University of Health Sciences, LT-50161 Kaunas, Lithuania; (L.K.); (A.M.); (J.Š.)
| | - Jurga Bernatonienė
- Department of Drug Technology and Social Pharmacy, Lithuanian University of Health Sciences, LT-50162 Kaunas, Lithuania;
- Institute of Pharmaceutical Technologies, Lithuanian University of Health Sciences, LT-50162 Kaunas, Lithuania
| | - Jurgita Šulinskienė
- Department of Biochemistry, Lithuanian University of Health Sciences, LT-50161 Kaunas, Lithuania; (L.K.); (A.M.); (J.Š.)
- Institute of Neurosciences, Lithuanian University of Health Sciences, LT-50161 Kaunas, Lithuania
| | - Inga Stanevičienė
- Department of Biochemistry, Lithuanian University of Health Sciences, LT-50161 Kaunas, Lithuania; (L.K.); (A.M.); (J.Š.)
- Correspondence: ; Tel.: +370-6157-4010
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17
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Guan J, Qian J, Zhan C. Preparation of Cholera Toxin Subunit B Functionalized Nanoparticles for Targeted Therapy of Glioblastoma. Methods Mol Biol 2020; 2059:207-212. [PMID: 31435923 DOI: 10.1007/978-1-4939-9798-5_10] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Cholera toxin subunit B (CTB) is the nontoxic moiety of cholera toxin. It can target the glycosphingolipid GM1 expressed in the blood-brain barrier (BBB), neovasculature, and glioblastoma cells. Thus, CTB has been utilized as a multifunctional molecule for targeted therapy of glioblastoma. Here, we describe a detailed method for preparation of CTB functionalized paclitaxel (PTX)-loaded poly (lactic-co-glycolic acid) (PLGA) nanoparticles. This unique modification can guide nanoparticles across the BBB and target glioblastoma cells. The characterization of nanoparticles such as size, zeta potential, morphology, drug loading, and encapsulation efficiency is shown in this chapter.
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Affiliation(s)
- Juan Guan
- School of Basic Medical Sciences, Fudan University, Shanghai, People's Republic of China
- State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai, People's Republic of China
- School of Pharmacy, Fudan University, Shanghai, People's Republic of China
- Key Laboratory of Smart Drug Delivery, Fudan University, Ministry of Education, Shanghai, People's Republic of China
| | - Jun Qian
- School of Pharmacy, Fudan University, Shanghai, People's Republic of China
- Key Laboratory of Smart Drug Delivery, Fudan University, Ministry of Education, Shanghai, People's Republic of China
| | - Changyou Zhan
- School of Basic Medical Sciences, Fudan University, Shanghai, People's Republic of China.
- State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai, People's Republic of China.
- Key Laboratory of Smart Drug Delivery, Fudan University, Ministry of Education, Shanghai, People's Republic of China.
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18
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Ataizi ZS, Ertilav K, Nazıroğlu M. Mitochondrial oxidative stress-induced brain and hippocampus apoptosis decrease through modulation of caspase activity, Ca 2+ influx and inflammatory cytokine molecular pathways in the docetaxel-treated mice by melatonin and selenium treatments. Metab Brain Dis 2019; 34:1077-1089. [PMID: 31197678 DOI: 10.1007/s11011-019-00428-x] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Accepted: 05/01/2019] [Indexed: 01/03/2023]
Abstract
Docetaxel (DOCE) is widely used to treat several types of glioblastoma. Adverse effects DOCE seriously limit its clinical use in several tissues. Its side effects on brain cortex and hippocampus have not been clarified yet. Limited data indicated a protective effect of melatonin (MLT) and selenium (SELEN) on DOCE-induced apoptosis, Ca2+ influx and mitochondrial reactive oxygen species (ROS) in several tissues except brain and hippocampus. The purpose of this study is to discover the protective effect of MLT and SELEN on DOCE-induced brain and hippocampus oxidative toxicity in mice. MLT and SELEN pretreatments significantly ameliorated acute DOCE-induced mitochondrial ROS production in the hippocampus and brain tissues by reducing levels of lipid peroxidation, intracellular ROS production and mitochondrial membrane depolarization, while increasing levels of total antioxidant status, glutathione, glutathione peroxidase, MLT, α-tocopherol, γ-tocopherol, vitamin A, vitamin C and β-carotene in the tissues. Furthermore, MLT and SELEN pretreatments increased cell viability and TRPM2 channel activation in the hippocampus and brain followed by decreased activations of TNF-α, IL-1β, IL-6, and caspase -3 and - 9, suggesting a suppression of calcium ion influx, apoptosis and inflammation responses. However, modulator role of SELEN on the values in the tissues is more significant than in the MLT treatment. MLT and SELEN prevent DOCE-induced hippocampus and brain injury by inhibiting mitochondrial ROS and cellular apoptosis through regulating caspase -3 and - 9 activation signaling pathways. MLT and SELEN may serve as potential therapeutic targets against DOCE-induced toxicity in the hippocampus and brain.
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Affiliation(s)
- Zeki Serdar Ataizi
- Departmant of Neurosurgery, Yunus Emre General State Hospital, Eskişehir, Turkey
| | - Kemal Ertilav
- Departmant of Neurosurgery, Faculty of Medicine, Suleyman Demirel University, Isparta, Turkey
| | - Mustafa Nazıroğlu
- Neuroscience Research Center, Suleyman Demirel University, Isparta, Turkey.
- Drug Discovery Unit, BSN Health, Analysis and Innovation Ltd. Inc. Teknokent, Isparta, Turkey.
- Süleyman Demirel Üniversitesi, Tıp Fakültesi, Biyofizik Anabilim Dalı, TR-32260, Isparta, Turkey.
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19
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Selenium Enhances the Apoptotic Efficacy of Docetaxel Through Activation of TRPM2 Channel in DBTRG Glioblastoma Cells. Neurotox Res 2019; 35:797-808. [PMID: 30796690 DOI: 10.1007/s12640-019-0009-5] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2018] [Revised: 01/26/2019] [Accepted: 01/29/2019] [Indexed: 01/01/2023]
Abstract
The rate of mitosis of cancer cells is significantly higher than normal primary cells with increased metabolic needs, which in turn enhances the generation of reactive oxygen species (ROS) production. Higher ROS production is known to increase cancer cell dependence on ROS scavenging systems to counteract the increased ROS. Therapeutic options which selectively modulate the levels of intracellular ROS in cancers are likely candidates for drug discovery. Docetaxel (DTX) has demonstrated antitumor activity in preclinical and clinical studies. It is thought that DTX induces cell death through excessive ROS production and increased Ca2+ entry. The Ca2+ permeable TRPM2 channel is activated by ROS. Selenium (Se) has been previously used to stimulate apoptosis for the treatment of glioblastoma cells resistant to DTX. However, the potential mechanism(s) of the additive effect of DTX on TRPM2 channels in cancer cells remains unclear. The aim of this study was to evaluate the effect of combination therapy of DTX and Se on activation of TRPM2 in DBTRG glioblastoma cells. DBTRG cells were divided into four treatment groups: control, DTX (10 nM for 10 h), Se (1 μM for 10 h), and DTX+Se. Our study showed that apoptosis (Annexin V and propidium iodide), mitochondrial membrane depolarization (JC1), and ROS production levels were increased in DBTRG cells following treatment with Se and DTX respectively. Cell number and viability, and the levels of apoptosis, JC1, ROS, and [Ca2+]i, induced by DTX, were further increased following addition of Se. We also observed an additive increase in the activation of the NAD-dependent DNA repair enzyme poly (ADP-ribose) polymerase-1 (PARP-1) activity, which was accompanied by a decline in its essential substrate NAD+. As well, the Se- and DTX-induced increases in intracellular Ca2+ florescence intensity were decreased following treatment with the TRPM2 antagonist N-(p-amylcinnamoyl) anthranilic acid (ACA). Therefore, combination therapy with Se and DTX may represent an effective strategy for the treatment of glioblastoma cells and may be associated with TRPM2-mediated increases in oxidative stress and [Ca2+]i.
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20
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Liu W, Hou T, Shi W, Guo D, He H. Hepatoprotective effects of selenium-biofortified soybean peptides on liver fibrosis induced by tetrachloromethane. J Funct Foods 2018. [DOI: 10.1016/j.jff.2018.09.034] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
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21
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Matejczyk M, Świderski G, Świsłocka R, Rosochacki SJ, Lewandowski W. Seleno-l-methionine and l-ascorbic acid differentiate the biological activity of doxorubicin and its metal complexes as a new anticancer drugs candidate. J Trace Elem Med Biol 2018; 48:141-148. [PMID: 29773172 DOI: 10.1016/j.jtemb.2018.03.021] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Revised: 03/16/2018] [Accepted: 03/23/2018] [Indexed: 01/03/2023]
Abstract
The most important problems of anti-cancer therapy include the toxicity of the drugs applied to healthy cells and the multi-drug cells resistance to chemotherapeutics. One of the most commonly used anticancer drugs is doxorubicin (DOX) used to treat certain leukemias and non-Hodgkin's lymphomas, as well as bladder, breast, stomach, lung, ovarian, thyroid, multiple myeloma and other cancers. Preliminary studies showed that metal complex with DOX improve its cytostatic activity with changes in their molecular structure and distribution of electrons, resulting in a substantial change of its biological activity (including antitumor activity). Thus, there is a chance to receiving derivatives of DOX with low toxicity for the healthy body cells, thus increasing its therapeutic selectivity. In the present study we examined the influence of Mn, Mg, Fe, Co and Ni, seleno-l-methionine and vitamin C on biological activity of DOX in prokaryotic model - Escherichia coli RFM443, with plasmid transcriptional fusion of recA promoter and luxCDABE as a reporter gene. Cytotoxic potency of tested chemicals was calculated on the basis of the bacteria culture growth inhibition (GI%) values. Genotoxic properties were calculated on the basis of the fold increase (FI) of relative luminescence units (RLU) values compared to control. Obtained results showed that doxorubicin metal complexes particularly with Ni, Co and Fe increased the cyto- and genotoxic activities of DOX. Bacteria culture supplemented with SeMet and vitamin C differentiate the DOX and its metal complexes toxicity. It seems, that DOX-Ni, DOX-Fe and DOX-Co complexes could be potent cytostatic drug candidates. Moreover, we noticed different sensitivity of recA::luxCDABE for 3 h and 24 h cultures of bacteria strain. It suggests, that the potency of genetic construct reactivity- recA::luxCDABE in E. coli depends on the growth-phase of bacterial culture.
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Affiliation(s)
- Marzena Matejczyk
- Bialystok University of Technology, Faculty of Civil Engineering and Environmental Engineering, Division of Chemistry, Biology and Biotechnology, Wiejska 45E, 15-351, Bialystok, Poland.
| | - Grzegorz Świderski
- Bialystok University of Technology, Faculty of Civil Engineering and Environmental Engineering, Division of Chemistry, Biology and Biotechnology, Wiejska 45E, 15-351, Bialystok, Poland
| | - Renata Świsłocka
- Bialystok University of Technology, Faculty of Civil Engineering and Environmental Engineering, Division of Chemistry, Biology and Biotechnology, Wiejska 45E, 15-351, Bialystok, Poland
| | - Stanisław Józef Rosochacki
- Bialystok University of Technology, Faculty of Civil Engineering and Environmental Engineering, Division of Chemistry, Biology and Biotechnology, Wiejska 45E, 15-351, Bialystok, Poland
| | - Włodzimierz Lewandowski
- Bialystok University of Technology, Faculty of Civil Engineering and Environmental Engineering, Division of Chemistry, Biology and Biotechnology, Wiejska 45E, 15-351, Bialystok, Poland
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22
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Peeri NC, Creed JH, Anic GM, Thompson RC, Olson JJ, LaRocca RV, Chowdhary SA, Brockman JD, Gerke TA, Nabors LB, Egan KM. Toenail selenium, genetic variation in selenoenzymes and risk and outcome in glioma. Cancer Epidemiol 2018; 55:45-51. [PMID: 29777993 DOI: 10.1016/j.canep.2018.05.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Revised: 05/02/2018] [Accepted: 05/03/2018] [Indexed: 11/24/2022]
Abstract
BACKGROUND Selenium is an essential trace element obtained through diet that plays a critical role in DNA synthesis and protection from oxidative damage. Selenium intake and polymorphisms in selenoproteins have been linked to the risk of certain cancers though data for glioma are sparse. METHODS In a case-control study of glioma, we examined the associations of selenium in toenails and genetic variants in the selenoenzyme pathway with the risk of glioma and patient survival. A total of 423 genetic variants in 29 candidate genes in the selenoenzyme pathway were studied in 1547 glioma cases and 1014 healthy controls. Genetic associations were also examined in the UK Biobank cohort comprised of 313,868 persons with 322 incident glioma cases. Toenail selenium was measured in a subcohort of 300 glioma cases and 300 age-matched controls from the case-control study. RESULTS None of the 423 variants studied were consistently associated with glioma risk in the case-control and cohort studies. Moreover, toenail selenium in the case-control study had no significant association with glioma risk (p trend = 0.70) or patient survival among 254 patients with high grade tumors (p trend = 0.70). CONCLUSION The present study offers no support for the hypothesis that selenium plays a role in the onset of glioma or patient outcome.
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Affiliation(s)
- Noah C Peeri
- Department of Cancer Epidemiology, H. Lee Moffitt Cancer Center & Research Institute, Tampa FL, 33612, USA
| | - Jordan H Creed
- Department of Cancer Epidemiology, H. Lee Moffitt Cancer Center & Research Institute, Tampa FL, 33612, USA
| | - Gabriella M Anic
- Department of Cancer Epidemiology, H. Lee Moffitt Cancer Center & Research Institute, Tampa FL, 33612, USA
| | - Reid C Thompson
- Department of Neurological Surgery, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Jeffrey J Olson
- Department of Neurosurgery, Emory School of Medicine, Atlanta, GA 30322, USA
| | | | - Sajeel A Chowdhary
- Neuro-Oncology Program, Lynn Cancer Institute, 701 NW 13th Street, Boca Raton, FL 33486, USA
| | - John D Brockman
- University of Missouri Research Reactor, University of Missouri, Columbia, MO 65211, USA
| | - Travis A Gerke
- Department of Cancer Epidemiology, H. Lee Moffitt Cancer Center & Research Institute, Tampa FL, 33612, USA
| | - L Burton Nabors
- Neuro-oncology Program, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Kathleen M Egan
- Department of Cancer Epidemiology, H. Lee Moffitt Cancer Center & Research Institute, Tampa FL, 33612, USA.
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23
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Zhang M, Lu W. Enhanced glioma-targeting and stability of LGICP peptide coupled with stabilized peptide DA7R. Acta Pharm Sin B 2018; 8:106-115. [PMID: 29872627 PMCID: PMC5985625 DOI: 10.1016/j.apsb.2017.11.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Revised: 09/15/2017] [Accepted: 11/10/2017] [Indexed: 12/12/2022] Open
Abstract
Malignant glioma is usually accompanied by vigorous angiogenesis to provide essential nutrients. An effective glioma targeting moiety should include excellent tumor-cell homing ability as well as good neovasculature-targeting efficiency, and should be highly resistant to enzyme degradation in the bloodstream. The phage display-selected heptapeptide, the glioma-initiating cell peptide (GICP), was previously reported as a ligand for the VAV3 protein (a Rho-GTPase guanine nucleotide exchange factor), which is mainly expressed on glioma cells; the stabilized heptapeptide DA7R has been shown to be the ligand of both vascular endothelial growth factor receptor 2 (VEGFR2) and neuropilin-1 (NRP-1), and has demonstrated good neovasculature-targeting ability. By linking DA7R and GICP, a multi-receptor targeting molecule was obtained. The stability of these three peptides was evaluated and their targeting efficiency on tumor-related cells and models was compared. The ability of these peptides to cross the blood--tumor barrier (BTB) was also determined. The results indicate that the coupled Y-shaped peptide DA7R–GICP exhibited improved tumor and neovasculature targeting ability and had higher efficiency in crossing the BTB than either individual peptide.
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Affiliation(s)
- Mingfei Zhang
- Department of Pharmaceutics, School of Pharmacy, and Key Laboratory of Smart Drug Delivery (Fudan University), Ministry of Education, Shanghai 201203, China
- State Key Laboratory of Medical Neurobiology, and Collaborative Innovation Center for Brain Science, Fudan University, Shanghai 200032, China
| | - Weiyue Lu
- Department of Pharmaceutics, School of Pharmacy, and Key Laboratory of Smart Drug Delivery (Fudan University), Ministry of Education, Shanghai 201203, China
- State Key Laboratory of Medical Neurobiology, and Collaborative Innovation Center for Brain Science, Fudan University, Shanghai 200032, China
- Minhang Branch, Zhongshan Hospital and Institute of Fudan-Minghang Academic Health System, Minghang Hospital, Fudan University, Shanghai 201199, China
- Institutes of Integrative Medicine of Fudan University, Shanghai 200040, China
- Corresponding author at: Department of Pharmaceutics, School of Pharmacy, and Key Laboratory of Smart Drug Delivery (Fudan University), Ministry of Education, Shanghai 201203, China. Tel.: +86 21 51980006; fax: +86 21 51980090.
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24
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Zhang M, Chen X, Ying M, Gao J, Zhan C, Lu W. Glioma-Targeted Drug Delivery Enabled by a Multifunctional Peptide. Bioconjug Chem 2016; 28:775-781. [PMID: 27966896 DOI: 10.1021/acs.bioconjchem.6b00617] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The rapid proliferation of glioma relies on vigorous angiogenesis for the supply of essential nutrients; thus, a radical method of antiglioma therapy should include blocking tumor neovasculature formation. A phage display selected heptapeptide, the glioma-initiating cell peptide GICP, was previously reported as a ligand of VAV3 protein (a Rho GTPase guanine nucleotide exchange factor), which is overexpressed on glioma cells and tumor neovasculature. Therefore, GICP holds potential for the multifunctional targeting of glioma (tumor cells and neovasculature). We developed GICP-modified micelle-based paclitaxel delivery systems for antiglioma therapy in vitro and in vivo. GICP and GICP-modified PEG-PLA micelles (GICP-PEG-PLA) could be significantly taken up by U87MG cells, a human cell line derived from malignant gliomas and human umbilical vein endothelial cells (HUVECs). Furthermore, GICP-PEG-PLA micelles demonstrated enhanced penetration in a tumor spheroid model in vitro in comparison to unmodified micelles. In vivo, DiR-loaded GICP-PEG-PLA micelles exhibited superior accumulation in the tumor region by targeting neovasculature and glioma cells in nude mice bearing subcutaneous glioma. When loaded with paclitaxel, GICP-PEG-PLA micelles could more effectively suppress tumor growth and neovasculature formation than unmodified micelles in vivo. Our results indicated that GICP could serve as a promising multifunctional ligand for glioma targeting.
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Affiliation(s)
- Mingfei Zhang
- Department of Pharmaceutics, School of Pharmacy, Fudan University and Key Laboratory of Smart Drug Delivery , Ministry of Education, 826 Zhangheng Road, Shanghai 201203, China
| | - Xishan Chen
- Department of Pharmaceutics, School of Pharmacy, Fudan University and Key Laboratory of Smart Drug Delivery , Ministry of Education, 826 Zhangheng Road, Shanghai 201203, China
| | - Man Ying
- Department of Pharmaceutics, School of Pharmacy, Fudan University and Key Laboratory of Smart Drug Delivery , Ministry of Education, 826 Zhangheng Road, Shanghai 201203, China
| | - Jie Gao
- Department of Pharmaceutics, School of Pharmacy, Fudan University and Key Laboratory of Smart Drug Delivery , Ministry of Education, 826 Zhangheng Road, Shanghai 201203, China
| | | | - Weiyue Lu
- Department of Pharmaceutics, School of Pharmacy, Fudan University and Key Laboratory of Smart Drug Delivery , Ministry of Education, 826 Zhangheng Road, Shanghai 201203, China
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25
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Ellwanger JH, Franke SIR, Bordin DL, Prá D, Henriques JAP. Biological functions of selenium and its potential influence on Parkinson's disease. AN ACAD BRAS CIENC 2016; 88:1655-1674. [PMID: 27556332 DOI: 10.1590/0001-3765201620150595] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Accepted: 09/28/2015] [Indexed: 03/01/2023] Open
Abstract
Parkinson's disease is characterized by the death of dopaminergic neurons, mainly in the substantia nigra, and causes serious locomotor dysfunctions. It is likely that the oxidative damage to cellular biomolecules is among the leading causes of neurodegeneration that occurs in the disease. Selenium is an essential mineral for proper functioning of the brain, and mainly due to its antioxidant activity, it is possible to exert a special role in the prevention and in the nutritional management of Parkinson's disease. Currently, few researchers have investigated the effects of selenium on Parkinson´s disease. However, it is known that very high or very low body levels of selenium can (possibly) contribute to the pathogenesis of Parkinson's disease, because this imbalance results in increased levels of oxidative stress. Therefore, the aim of this work is to review and discuss studies that have addressed these topics and to finally associate the information obtained from them so that these data and associations serve as input to new research.
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Affiliation(s)
- Joel H Ellwanger
- Programa de Pós-Graduação em Biologia Celular e Molecular, Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul/UFRGS, Campus do Vale, Prédio 43421, Av. Bento Gonçalves, 9500, 91501-970 Porto Alegre, RS, Brasil
| | - Silvia I R Franke
- Programa de Pós-Graduação em Promoção da Saúde, Universidade de Santa Cruz do Sul/UNISC, Bloco 42, sala 4206, Av. Independência, 2293, Universitário, 96815-900 Santa Cruz do Sul, RS, Brasil
| | - Diana L Bordin
- Programa de Pós-Graduação em Biologia Celular e Molecular, Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul/UFRGS, Campus do Vale, Prédio 43421, Av. Bento Gonçalves, 9500, 91501-970 Porto Alegre, RS, Brasil
| | - Daniel Prá
- Programa de Pós-Graduação em Promoção da Saúde, Universidade de Santa Cruz do Sul/UNISC, Bloco 42, sala 4206, Av. Independência, 2293, Universitário, 96815-900 Santa Cruz do Sul, RS, Brasil.,Departamento de Biologia e Farmácia, Universidade de Santa Cruz do Sul/UNISC, Bloco 12, sala 1206, Av. Independência, 2293, Universitário, 96815-900 Santa Cruz do Sul, RS, Brasil
| | - João A P Henriques
- Programa de Pós-Graduação em Biologia Celular e Molecular, Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul/UFRGS, Campus do Vale, Prédio 43421, Av. Bento Gonçalves, 9500, 91501-970 Porto Alegre, RS, Brasil.,Instituto de Biotecnologia, Universidade de Caxias do Sul/UCS, Rua Francisco Getúlio Vargas, 1130, 95070-560 Caxias do Sul, RS, Brasil
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26
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Huang W, Wu H, Li X, Chen T. Facile One-Pot Synthesis of Tellurium Nanorods as Antioxidant and Anticancer Agents. Chem Asian J 2016; 11:2301-11. [PMID: 27325381 DOI: 10.1002/asia.201600757] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2016] [Indexed: 11/09/2022]
Abstract
Nanorods have been utilized in targeted therapy, controlled release, molecular diagnosis, and molecule imaging owing to their large surface area and optical, magnetic, electronic, and structural properties. However, low stability and complex synthetic methods have substantially limited the application of tellurium nanorods for use as antioxidant and anticancer agents. Herein, a facile one-pot synthesis of functionalized tellurium nanorods (PTNRs) by using a hydrothermal synthetic system with a polysaccharide-protein complex (PTR), which was extracted from Pleurotus tuber-regium, as a capping agent is described. PTNRs remained stable in water and in phosphate-buffered saline and exhibited high hemocompatibility. Interestingly, these nanorods possessed strong antioxidant activity for scavenging 2,2'-azinobis-(3-ethylbenzothiazoline-6-sulfonic acid radical cation (ABTS(.+) ) and 2,2-diphenyl-1-picrylhydrazylhydrate (DPPH) free radicals and demonstrated novel anticancer activities. However, these nanorods exhibited low cytotoxicity toward normal human cells. In addition, the PTNRs effectively induced a decrease in the mitochondrial membrane potential in a dose-dependent manner, which indicated that mitochondrial dysfunction might play an important role in PTNR-induced apoptosis. Therefore, this study provides a one-pot strategy for the facile synthesis of tellurium nanorods with novel antioxidant and anticancer application potentials.
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Affiliation(s)
- Wei Huang
- Department of Chemistry, Jinan University, Guangzhou, 510631, P.R China
| | - Hualian Wu
- Department of Chemistry, Jinan University, Guangzhou, 510631, P.R China
| | - Xiaoling Li
- Department of Chemistry, Jinan University, Guangzhou, 510631, P.R China.
| | - Tianfeng Chen
- Department of Chemistry, Jinan University, Guangzhou, 510631, P.R China.
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27
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Wrobel JK, Wolff G, Xiao R, Power RF, Toborek M. Dietary Selenium Supplementation Modulates Growth of Brain Metastatic Tumors and Changes the Expression of Adhesion Molecules in Brain Microvessels. Biol Trace Elem Res 2016; 172:395-407. [PMID: 26706037 PMCID: PMC4930949 DOI: 10.1007/s12011-015-0595-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2015] [Accepted: 12/14/2015] [Indexed: 12/26/2022]
Abstract
Various dietary agents can modulate tumor invasiveness. The current study explored whether selenoglycoproteins (SeGPs) extracted from selenium-enriched yeast affect tumor cell homing and growth in the brain. Mice were fed diets enriched with specific SeGPs (SeGP40 or SeGP65, 1 mg/kg Se each), glycoproteins (GP40 or GP65, 0.2-0.3 mg/kg Se each) or a control diet (0.2-0.3 mg/kg Se) for 12 weeks. Then, murine Lewis lung carcinoma cells were infused into the brain circulation. Analyses were performed at early (48 h) and late stages (3 weeks) post tumor cell infusion. Imaging of tumor progression in the brain revealed that mice fed SeGP65-enriched diet displayed diminished metastatic tumor growth, fewer extravasating tumor cells and smaller metastatic lesions. While administration of tumor cells resulted in a significant upregulation of adhesion molecules in the early stage of tumor progression, overexpression of VCAM-1 (vascular call adhesion molecule-1) and ALCAM (activated leukocyte cell adhesion molecule) messenger RNA (mRNA) was diminished in SeGP65 supplemented mice. Additionally, mice fed SeGP65 showed decreased expression of acetylated NF-κB p65, 48 h post tumor cell infusion. The results indicate that tumor progression in the brain can be modulated by specific SeGPs. Selenium-containing compounds were more effective than their glycoprotein controls, implicating selenium as a potential negative regulator of metastatic process.
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Affiliation(s)
- Jagoda K Wrobel
- Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, Miami, FL, 33136, USA
| | - Gretchen Wolff
- Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, Miami, FL, 33136, USA
| | - Rijin Xiao
- Nutrigenomics Research Center, Alltech, Nicholasville, KY, 40356, USA
| | - Ronan F Power
- Nutrigenomics Research Center, Alltech, Nicholasville, KY, 40356, USA
| | - Michal Toborek
- Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, Miami, FL, 33136, USA.
- Jerzy Kukuczka Academy of Physical Education, Katowice, 40-065, Poland.
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28
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Liu Y, Li W, Guo M, Li C, Qiu C. Protective Role of Selenium Compounds on the Proliferation, Apoptosis, and Angiogenesis of a Canine Breast Cancer Cell Line. Biol Trace Elem Res 2016; 169:86-93. [PMID: 26051789 DOI: 10.1007/s12011-015-0387-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2015] [Accepted: 05/26/2015] [Indexed: 12/27/2022]
Abstract
We herein examined the effects of different doses, forms, and compatibilities of selenium on a canine mammary gland tumor cell line, CTM1211, and explored the related mechanisms. Three selenium compounds, sodium selenite (SSE), methylseleninic acid (MSA), and methylselenocysteine (MSC), were selected for these experiments, and cyclophosphamide (CTX) served as a positive control. In the cell viability assay, the cell viability of each group at 48/72 h decreased significantly compared with the control group (p < 0.05), and the cell viability of the CTX + MSA group was lower than that of CTX and MSA groups (p < 0.05). Moreover, the inhibitory effect of selenium on cell proliferation was time-dependent but not concentration-dependent. In the cell apoptosis assay, the apoptosis values of each group increased significantly compared with the control group, and the apoptosis values of the CTX + MSA group increased the most significantly (p < 0.01). The protein and mRNA expression levels of vascular endothelial growth factor-alpha (VEGF-alpha), angiopoietin-2 (Ang-2), and hypoxia inducible factor-1 alpha (HIF-1 alpha) were downregulated in each group, while that of phosphatase and tensin homolog (PTEN) were upregulated (p < 0.05). In conclusion, these three selenium compounds, especially MSA, could significantly inhibit the viability and growth of the CTM1211 cell line, which is partly due to the induction of apoptosis and regulation of tumor angiogenesis.
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Affiliation(s)
- Yuzhi Liu
- Huazhong Agricultural University, Wuhan, China.
| | - Wenyu Li
- Huazhong Agricultural University, Wuhan, China
| | - Mengyao Guo
- Huazhong Agricultural University, Wuhan, China
| | - Chengye Li
- Huazhong Agricultural University, Wuhan, China
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29
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Wrobel JK, Power R, Toborek M. Biological activity of selenium: Revisited. IUBMB Life 2015; 68:97-105. [PMID: 26714931 DOI: 10.1002/iub.1466] [Citation(s) in RCA: 131] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Accepted: 12/05/2015] [Indexed: 12/22/2022]
Abstract
Selenium (Se) is an essential micronutrient that exerts multiple and complex effects on human health. Se is essential for human well-being largely due to its potent antioxidant, anti-inflammatory, and antiviral properties. The physiological functions of Se are carried out by selenoproteins, in which Se is specifically incorporated as the amino acid, selenocysteine. Importantly, both beneficial and toxic effects of Se have been reported suggesting that the mode of action of Se is strictly chemical form and concentration dependent. Additionally, there is a relatively narrow window between Se deficiency and toxicity and growing evidence suggests that Se health effects depend greatly on the baseline level of this micronutrient. Thus, Se supplementation is not an easy task and requires an individualized approach. It is essential that we continue to explore and better characterize Se containing compounds and mechanisms of action, which could be crucial for disease prevention and treatment.
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Affiliation(s)
- Jagoda K Wrobel
- Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Ronan Power
- Nutrigenomics Research Center, Alltech, Nicholasville, KY, USA
| | - Michal Toborek
- Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, Miami, FL, USA.,Jerzy Kukuczka Academy of Physical Education, Katowice, Poland
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30
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Solovyev ND. Importance of selenium and selenoprotein for brain function: From antioxidant protection to neuronal signalling. J Inorg Biochem 2015; 153:1-12. [PMID: 26398431 DOI: 10.1016/j.jinorgbio.2015.09.003] [Citation(s) in RCA: 164] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2015] [Revised: 09/03/2015] [Accepted: 09/09/2015] [Indexed: 12/21/2022]
Abstract
Multiple biological functions of selenium manifest themselves mainly via 25 selenoproteins that have selenocysteine at their active centre. Selenium is vital for the brain and seems to participate in the pathology of disorders such as Alzheimer's disease, Parkinson's disease, amyotrophic lateral sclerosis and epilepsy. Since selenium was shown to be involved in diverse functions of the central nervous system, such as motor performance, coordination, memory and cognition, a possible role of selenium and selenoproteins in brain signalling pathways may be assumed. The aim of the present review is to analyse possible relations between selenium and neurotransmission. Selenoproteins seem to be of special importance in the development and functioning of GABAergic (GABA, γ-aminobutyric acid) parvalbumin positive interneurons of the cerebral cortex and hippocampus. Dopamine pathway might be also selenium dependent as selenium shows neuroprotection in the nigrostriatal pathway and also exerts toxicity towards dopaminergic neurons under higher concentrations. Recent findings also point to acetylcholine neurotransmission involvement. The role of selenium and selenoproteins in neurotransmission might not only be limited to their antioxidant properties but also to inflammation, influencing protein phosphorylation and ion channels, alteration of calcium homeostasis and brain cholesterol metabolism. Moreover, a direct signalling function was proposed for selenoprotein P through interaction with post-synaptic apoliprotein E receptors 2 (ApoER2).
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Affiliation(s)
- Nikolay D Solovyev
- Institute of Chemistry, St. Petersburg State University, St. Petersburg 198504, Russian Federation.
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31
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Romero-Hernández LL, Merino-Montiel P, Montiel-Smith S, Meza-Reyes S, Vega-Báez JL, Abasolo I, Schwartz S, López Ó, Fernández-Bolaños JG. Diosgenin-based thio(seleno)ureas and triazolyl glycoconjugates as hybrid drugs. Antioxidant and antiproliferative profile. Eur J Med Chem 2015; 99:67-81. [DOI: 10.1016/j.ejmech.2015.05.018] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2015] [Revised: 04/02/2015] [Accepted: 05/11/2015] [Indexed: 01/12/2023]
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