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Geng H, Tan X, Zhao M, Ma Y, Li Y. Proteomic analysis of zearalenone toxicity on mouse thymic epithelial cells. J Appl Toxicol 2021; 42:660-670. [PMID: 34716709 DOI: 10.1002/jat.4248] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Revised: 09/15/2021] [Accepted: 09/21/2021] [Indexed: 11/07/2022]
Abstract
Zearalenone (ZEA) is one of the most major food contaminants in cereal crops worldwide, risking health of both livestock and humans. This study aimed to assess the cytotoxicity and the underlying mechanism of ZEA on thymic epithelial cells. By using proteomics analysis, we identified 596 differentially expressed proteins in MTEC1 cells upon zearalenone exposure, of which 245 were upregulated and 351 were downregulated. Gene ontology (GO) analysis suggested that differentially expressed proteins were participated in protein synthesis, oxidative phosphorylation, and ATP binding. KEGG pathway enrichment analysis showed that differentially expressed proteins were mainly related to mitochndrial metabolism, such as citrate cycle (TCA cycle) and oxidative phosphorylation. We demonstrated that ZEA treatment was able to increase the intracellular reactive oxygen species (ROS) level, to decrease ΔΨm, ATP level, and the copy number of mtDNA, leading to necrotic cell death. Moreover, we showed that ZEA treatment inhibited cell proliferation and induced G2/M phase arrest by downregulation of proliferation-associated proteins ERK, p-ERK, CDK1, and p-CHK1. Taken together, we found that the toxicity of ZEA on thymic epithelial cells is mainly caused by the inhibition of mitochondrial dysfunction and cell proliferation. Our study might open new avenues for treatment strategies.
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Affiliation(s)
- Hongrui Geng
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Xiaotong Tan
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Miao Zhao
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Yongjiang Ma
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Yugu Li
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
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Jablonska E, Li Q, Reszka E, Wieczorek E, Tarhonska K, Wang T. Therapeutic Potential of Selenium and Selenium Compounds in Cervical Cancer. Cancer Control 2021; 28:10732748211001808. [PMID: 33754876 PMCID: PMC8204638 DOI: 10.1177/10732748211001808] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Cervical cancer is a common female cancer. It is strongly associated with human papillomavirus (HPV) infection. However, HPV infection alone is not sufficient to induce cervical cancer because its development is dependent on the coexistence of several factors that enable the virus to overcome the host immune system. These include individual genetic background, environmental factors, or diet, including dietary selenium intake. Selenium is an essential trace element with antiviral properties and has been shown to exert antitumor effects. Surprisingly, the role of selenium in cervical cancer has not been studied as intensively as in other cancers. Here, we have summarized the existing experimental data on selenium and cervical cancer. It may be helpful in evaluating the role of this nutrient in treatment of the mentioned malignancy as well as in planning further studies in this area.
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Affiliation(s)
- Ewa Jablonska
- Department of Translational Research, Nofer Institute of Occupational Medicine, Lodz, Poland
| | - Qi Li
- Department of Gynecological Radiotherapy, Harbin Medical University Cancer Hospital, Harbin, China
| | - Edyta Reszka
- Department of Translational Research, Nofer Institute of Occupational Medicine, Lodz, Poland
| | - Edyta Wieczorek
- Department of Translational Research, Nofer Institute of Occupational Medicine, Lodz, Poland
| | - Kateryna Tarhonska
- Department of Translational Research, Nofer Institute of Occupational Medicine, Lodz, Poland
| | - Tong Wang
- Harbin Medical University, Institute of Keshan Disease, Chinese Center for Endemic Disease Control, Harbin Medical University, Harbin, China
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Bonfim NESMT, Baranoski A, Mantovani MS. Cytotoxicity of sodium selenite in HaCaT cells induces cell death and alters the mRNA expression of PUMA, ATR, and mTOR genes. J Trace Elem Med Biol 2020; 62:126605. [PMID: 32634766 DOI: 10.1016/j.jtemb.2020.126605] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 06/18/2020] [Accepted: 06/30/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND By identifying the molecular mechanisms underlying sodium selenite (Na2SeO3) cytotoxicity during exposure in non-tumor cells (HaCaT cells), we will improve the current understanding of its antiproliferative effects and modulation of gene expression in the main pathways related to the cell cycle, cell death, oxidative stress, and DNA damage and repair. METHODS Non-tumor HaCaT cells were treated with Na2SeO3 to induce cytotoxicity, and the effects were investigated using an MTT assay (cell viability), real-time cell analysis (profiling the cell index), flow cytometry (membrane integrity, cell cycle disruption, and apoptosis), a comet assay (genotoxicity, i.e., DNA damage), and RT-qPCR (mRNA expression of genes). RESULTS Treatment with Na2SeO3 was cytotoxic at 10 μM, producing morphological changes in cells (cytoplasmic granulations); however, it did not have a genotoxic effect. Na2SeO3 induced cell membrane damage, cell death, and cell cycle arrest in HaCaT cells. It also altered the mRNA expression levels of PUMA, ATR, and mTOR genes. However, it had no effect on the mRNA expression of caspases or PARP1, BIRC5, BECN1, and c-MYC genes, suggesting that Na2SeO3 causes PUMA-dependent apoptosis in HaCaT cells. The mRNA expression of specific genes related to oxidative stress, DNA damage and repair, and cell cycle control were unchanged by Na2SeO3. CONCLUSIONS We demonstrated the cytotoxic effect of Na2SeO3 in HaCaT cells by analyzing mRNA expression patterns, changes in cell morphology, and proliferation kinetics.
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Affiliation(s)
| | - Adrivanio Baranoski
- Departamento de Biologia Geral, Universidade Estadual de Londrina, Londrina, Paraná, Brazil
| | - Mário Sérgio Mantovani
- Departamento de Biologia Geral, Universidade Estadual de Londrina, Londrina, Paraná, Brazil.
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Moni SS, Alam MF, Safhi MM, Sultan MH, Makeen HA, Elmobark ME. Development of Formulation Methods and Physical Characterization of Injectable Sodium Selenite Nanoparticles for the Delivery of Sorafenib tosylate. Curr Pharm Biotechnol 2020; 21:659-666. [PMID: 31886748 PMCID: PMC7509770 DOI: 10.2174/1389201021666191230124041] [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: 10/09/2019] [Revised: 11/15/2019] [Accepted: 12/11/2019] [Indexed: 02/08/2023]
Abstract
Background: Sorafenib is the first oral therapeutic agent to show the activity against human hepatocellular carcinoma. Sorafenib leads to severe toxicity due to the multiple-dose regimen. Reducing the overall dose of sorafenib through injectable dosage form to release sustainably is of therapeutically more important to combat drug-induced toxicity. Objective: The purpose of this study was to formulate and evaluate the physical parameters of sorafenib-loaded Sodium Selenite Nanoparticles (SSSNP). Methods: Two different methods: chemical crosslinking and solvent evaporation were applied for the formulation of nanoparticles using various crosslinkers such as formaldehyde, magnesium sulfate, tripolyphosphate, dextran sulfate, and aluminum hydroxide. Physical characterization was performed with zeta potential analysis, polydispersity index, particle size and scanning electron microscopic studies for morphological analysis for all the formulated nanoparticles developed using the chemical crosslinking technique based ionic interaction. Results: Tripolyphosphate was selected as an ideal crosslinker and used for nanoparticle formulation with the solvent evaporation technique. Based on the physical characterization, SSSNP was formulated successfully with the solvent evaporation technique using tripolyphosphate as a cross-linker. The zeta potential of SSSNP was -37.5 mV, PDI was approximately 0.3 to 0.4, and the observed size (diameter) was in the range of 208 nm to 0.2 µm. Furthermore, the particles were smooth in morphology and appeared as crystals. Conclusion: The novel injectable sorafenib loaded sodium selenite nanoparticle dosage form will serve better than conventional oral dosage form to elicit a safe therapeutic effect.
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Affiliation(s)
- Sivakumar S Moni
- Department of Pharmaceutics, College of Pharmacy, Jazan University, Jazan, Saudi Arabia
| | - Mohammad F Alam
- Department of Pharmacology and Toxicology, College of Pharmacy, Jazan University, Jazan, Saudi Arabia
| | - Mohammed M Safhi
- Department of Pharmacology and Toxicology, College of Pharmacy, Jazan University, Jazan, Saudi Arabia
| | - Muhammad H Sultan
- Department of Pharmaceutics, College of Pharmacy, Jazan University, Jazan, Saudi Arabia
| | - Hafiz A Makeen
- Pharmacy Practice Research Unit, Clinical Pharmacy Department, Faculty of Pharmacy, Jazan University, Saudi Arabia
| | - Mohamed E Elmobark
- Department of Pharmaceutics, College of Pharmacy, Jazan University, Jazan, Saudi Arabia
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Sodium selenite attenuates lung adenocarcinoma progression by repressing SOX2-mediated stemness. Cancer Chemother Pharmacol 2018; 81:885-895. [PMID: 29546459 DOI: 10.1007/s00280-018-3561-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Accepted: 03/11/2018] [Indexed: 12/18/2022]
Abstract
PURPOSE Sodium selenite (SS) has been widely reported to induce apoptosis in various cancer cell types. However, the underlying molecular mechanisms governing SS-mediated repression of lung cancer stem cells remain largely undefined. METHODS In vitro assays of cell proliferation, clonal formation, apoptosis, migration and cancer stemness cell sphere formation were performed to examine the inhibitory effects of SS on lung adenocarcinoma (LAD) cells with or without the overexpression of SRY-related high-mobility-group box 2 (SOX2). RESULTS SS significantly inhibited cell growth and induced apoptosis in LAD cells in a dose-dependent manner with marginal effects on normal epithelial cell HBEC. SS dramatically repressed expression of SOX2 and its upstream regulator GLI1 and strongly decreased stemness sphere formation in LAD cells at 10 µM. Forced expression of SOX2 significantly buffered anti-cancer effects of SS. CONCLUSIONS Our results demonstrate that SS attenuates lung adenocarcinoma progression by repressing SOX2 and its upstream regulator GLI1, which suggests that SS may be a potential therapeutic drug candidate for lung cancer patients.
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Gupta S, Gupta MK. Possible role of nanocarriers in drug delivery against cervical cancer. NANO REVIEWS & EXPERIMENTS 2017; 8:1335567. [PMID: 30410707 PMCID: PMC6167030 DOI: 10.1080/20022727.2017.1335567] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Accepted: 05/20/2017] [Indexed: 02/08/2023]
Abstract
Introduction: Cervical cancer is the second most common cancer and the largest cancer killer among women in most developing countries including India. Although, various drugs have been developed for cervical cancer, treatment with these drugs often results in a number of undesirable side effects, toxicity and multidrug resistance (MDR). Also, the outcomes for cervical cancer patients remain poor after surgery and chemo radiation. Methods: A literature search (for drugs and delivery systems against cervical cancer) was performed on PubMed and through Google. The present review discuss about various methods including its current conventional treatment with special reference to recent advances in delivery systems encapsulating various anticancer drugs and natural plant products for targeting towards cervical cancer. The role of photothermal therapy, gene therapy and radiation therapy against cervical cancer is also discussed. Results: Systemic/targeted drug delivery systems including liposomes, nanoparticles, hydrogels, dendrimers etc. and localized drug delivery systems like cervical patches, films, rings etc. are safer than the conventional chemotherapy which has further been proved by the several drug delivery systems undergoing clinical trials. Conclusion: Novel approaches for the aggressive treatment of cervical cancer will optimistically result in decreased side effects as well as toxicity, frequency of administration of existing drugs, to overcome MDR and to increase the survival rates.
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Affiliation(s)
- Swati Gupta
- B. S. Anangpuria Institute of Pharmacy, Pt B. D. Sharma University of Health Sciences, Faridabad, India
| | - Manish K. Gupta
- TERI-Deakin Nano Biotechnology Centre, The Energy and Resources Institute, Gurugram, India
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Rahn J, Lennicke C, Kipp AP, Müller AS, Wessjohann LA, Lichtenfels R, Seliger B. Altered protein expression pattern in colon tissue of mice upon supplementation with distinct selenium compounds. Proteomics 2017; 17. [DOI: 10.1002/pmic.201600486] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2016] [Revised: 03/16/2017] [Accepted: 04/11/2017] [Indexed: 12/19/2022]
Affiliation(s)
- Jette Rahn
- Institute of Medical Immunology; Martin Luther University Halle-Wittenberg; Halle (Saale) Germany
| | - Claudia Lennicke
- Institute of Medical Immunology; Martin Luther University Halle-Wittenberg; Halle (Saale) Germany
| | - Anna P. Kipp
- German Institute of Human Nutrition; Potsdam-Rehbrücke; Nuthetal Germany
| | - Andreas S. Müller
- Institute of Agricultural and Nutritional Sciences; Martin Luther University Halle-Wittenberg; Halle (Saale) Germany
- Delacon Biotechnik GmbH; Steyregg Austria
| | | | - Rudolf Lichtenfels
- Institute of Medical Immunology; Martin Luther University Halle-Wittenberg; Halle (Saale) Germany
| | - Barbara Seliger
- Institute of Medical Immunology; Martin Luther University Halle-Wittenberg; Halle (Saale) Germany
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The Combination of α-Tocopheryl Succinate and Sodium Selenite on Breast Cancer: A Merit or a Demerit? OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2016; 2016:4741694. [PMID: 27127548 PMCID: PMC4834195 DOI: 10.1155/2016/4741694] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Revised: 02/05/2016] [Accepted: 02/07/2016] [Indexed: 01/11/2023]
Abstract
α-Tocopheryl succinate (α-TOS), a mitochondria-targeting agent, induces apoptosis in malignant cells in vitro and in vivo. Selenite is a nutritional supplement that has been shown to stimulate apoptosis in cancer cells. This study was designed to investigate the cytotoxic effect of combined treatment of α-TOS and sodium selenite (SSe) in vitro and in vivo and to explore their effect on apoptosis and autophagy in breast cancer. The type of interaction between α-TOS and SSe was evaluated and levels of oxidative stress and apoptotic and autophagic markers were determined. SSe alone showed varying degrees of cytotoxicity on all the tested cell lines. Its combination with α-TOS was antagonistic in vitro in MCF7 and in vivo in mice bearing Ehrlich tumor compared to α-TOS-treated one. Combination of TOS with 2 μM of SSe increased the level of glutathione without changes in antiapoptotic markers Bcl-2 and Mcl-1 at 16 and 48 hrs. SSe decreased caspase 3 activity and protein level of caspases 7 and 9, while it increased autophagic markers beclin-1 and LC3B protein levels of MCF7 cells treated with α-TOS. In conclusion, SSe antagonizes α-TOS-induced apoptosis via inhibition of oxidative stress and promoting prosurvival machinery of autophagy.
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Guo L, Zhang C, Zhu J, Yang Y, Lan J, Su G, Xie X. Proteomic identification of predictive tissue biomarkers of sensitive to neoadjuvant chemotherapy in squamous cervical cancer. Life Sci 2016; 151:102-108. [PMID: 26947588 DOI: 10.1016/j.lfs.2016.03.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Revised: 03/01/2016] [Accepted: 03/02/2016] [Indexed: 02/07/2023]
Abstract
AIMS The regimens of neoadjuvant chemotherapy (NAC) in squamous cervical cancer (SCC) frequently use cisplatin combined with paclitaxel. Unfortunately, some cervical cancers show resistance to the principal chemotherapeutic agents in the treatment, decreasing the effectiveness of this therapy. The objective of this study was to search for predictive markers of response to NAC in patients with SCC. MAIN METHODS Two-dimensional gel electrophoresis (2-DE) accompanied by matrix-assisted laser desorption ionization time-of-flight tandem mass spectrometry (MALDI-TOF-MS) was used to analyze and identify differentially expressed proteins in ten cases of advanced cervical cancer patients receiving cisplatin-based NAC. Each of these patients received more than two cycles of NAC. Cell proliferation rate in cisplatin resistant human cervical cancer cell Hela/DDP and its parent cell Hela after treatment with Hsp70 inhibitor and/or cisplatin were tested by MTT assay. KEY FINDINGS Twelve protein spots changed in abundance, quantitative comparison of spot volumes showed that seven protein spots were up-regulated and five spots were down-regulated in the NAC non-responders compared to the NAC responders. These proteins are involved in various cellular processes essential for cell metabolism, migration and apoptotic signal transduction. The high-fold changes proteins of stathmin1, Hsp70 and pyruvate kinase isoform M2 were validated by Western blot analysis. Over-expression of Hsp70 inhibits the efficacy of cisplatin. Hsp70 inhibitor enhanced the sensitivity to cisplatin in both Hela and Hela/DDP cells. SIGNIFICANCE The study found many candidate proteins involved in chemotherapy resistance/sensitivity, among them Hsp70 might be potential biomarkers to predict the efficacy of chemotherapy for SCC patients.
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Affiliation(s)
- Lu Guo
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou City 730000, Gansu Province, China
| | - Caixia Zhang
- The First Hospital of Lanzhou University, Lanzhou City 730000, Gansu Province, China
| | - Jinghong Zhu
- The First Hospital of Lanzhou University, Lanzhou City 730000, Gansu Province, China
| | - Yuqin Yang
- Gansu Provincial Hospital, Lanzhou City 730000, Gansu Province, China
| | - Jianfa Lan
- First Affiliated Hospital of Xiamen University, Xiamen City 361003, Fujian Province, China
| | - Gang Su
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou City 730000, Gansu Province, China
| | - Xiaodong Xie
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou City 730000, Gansu Province, China.
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Fernandes AP, Gandin V. Selenium compounds as therapeutic agents in cancer. Biochim Biophys Acta Gen Subj 2014; 1850:1642-60. [PMID: 25459512 DOI: 10.1016/j.bbagen.2014.10.008] [Citation(s) in RCA: 272] [Impact Index Per Article: 27.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2014] [Revised: 10/06/2014] [Accepted: 10/08/2014] [Indexed: 11/24/2022]
Abstract
BACKGROUND With cancer cells encompassing consistently higher production of reactive oxygen species (ROS) and with an induced antioxidant defense to counteract the increased basal ROS production, tumors have a limited reserve capacity resulting in an increased vulnerability of some cancer cells to ROS. Based on this, oxidative stress has been recognized as a tumor-specific target for the rational design of new anticancer agents. Among redox modulating compounds, selenium compounds have gained substantial attention due to their promising chemotherapeutic potential. SCOPE OF REVIEW This review aims in summarizing and providing the recent developments of our understanding of the molecular mechanisms that underlie the potential anticancer effects of selenium compounds. MAJOR CONCLUSIONS It is well established that selenium at higher doses readily can turn into a prooxidant and thereby exert its potential anticancer properties. However, the biological activity of selenium compounds and the mechanism behind these effects are highly dependent on its speciation and the specific metabolic pathways of cells and tissues. Conversely, the chemical properties and the main molecular mechanisms of the most relevant inorganic and organic selenium compounds as well as selenium-based nanoparticles must be taken into account and are discussed herein. GENERAL SIGNIFICANCE Elucidating and deepening our mechanistic knowledge of selenium compounds will help in designing and optimizing compounds with more specific antitumor properties for possible future application of selenium compounds in the treatment of cancer. This article is part of a Special Issue entitled Redox regulation of differentiation and de-differentiation.
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Affiliation(s)
- Aristi P Fernandes
- Division of Biochemistry, Department of Medical Biochemistry and Biophysics (MBB), Karolinska Institutet, SE-171 77 Stockholm, Sweden.
| | - Valentina Gandin
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Via Marzolo 5, 35131 Padova, Italy
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Arntzen MØ, Bull VH, Thiede B. Cell death proteomics database: consolidating proteomics data on cell death. J Proteome Res 2013; 12:2206-13. [PMID: 23537399 DOI: 10.1021/pr4000703] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Programmed cell death is a ubiquitous process of utmost importance for the development and maintenance of multicellular organisms. More than 10 different types of programmed cell death forms have been discovered. Several proteomics analyses have been performed to gain insight in proteins involved in the different forms of programmed cell death. To consolidate these studies, we have developed the cell death proteomics (CDP) database, which comprehends data from apoptosis, autophagy, cytotoxic granule-mediated cell death, excitotoxicity, mitotic catastrophe, paraptosis, pyroptosis, and Wallerian degeneration. The CDP database is available as a web-based database to compare protein identifications and quantitative information across different experimental setups. The proteomics data of 73 publications were integrated and unified with protein annotations from UniProt-KB and gene ontology (GO). Currently, more than 6,500 records of more than 3,700 proteins are included in the CDP. Comparing apoptosis and autophagy using overrepresentation analysis of GO terms, the majority of enriched processes were found in both, but also some clear differences were perceived. Furthermore, the analysis revealed differences and similarities of the proteome between autophagosomal and overall autophagy. The CDP database represents a useful tool to consolidate data from proteome analyses of programmed cell death and is available at http://celldeathproteomics.uio.no.
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Affiliation(s)
- Magnus Ø Arntzen
- The Biotechnology Centre of Oslo, University of Oslo, 0317 Oslo, Norway.
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Chen P, Wang L, Li N, Liu Q, Ni J. Comparative proteomics analysis of sodium selenite-induced apoptosis in human prostate cancer cells. Metallomics 2013; 5:541-50. [DOI: 10.1039/c3mt00002h] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Seng HL, Tiekink ERT. Anti-cancer potential of selenium- and tellurium-containing species: opportunities abound! Appl Organomet Chem 2012. [DOI: 10.1002/aoc.2928] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Hoi-Ling Seng
- Department of Chemistry; University of Malaya; 50603 Kuala Lumpur Malaysia
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Park SH, Kim JH, Chi GY, Kim GY, Chang YC, Moon SK, Nam SW, Kim WJ, Yoo YH, Choi YH. Induction of apoptosis and autophagy by sodium selenite in A549 human lung carcinoma cells through generation of reactive oxygen species. Toxicol Lett 2012; 212:252-61. [DOI: 10.1016/j.toxlet.2012.06.007] [Citation(s) in RCA: 93] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2012] [Revised: 06/06/2012] [Accepted: 06/11/2012] [Indexed: 01/21/2023]
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15
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Current World Literature. Curr Opin Oncol 2012; 24:454-60. [DOI: 10.1097/cco.0b013e328355876c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Merk M, Mitchell RA, Endres S, Bucala R. D-dopachrome tautomerase (D-DT or MIF-2): doubling the MIF cytokine family. Cytokine 2012; 59:10-7. [PMID: 22507380 PMCID: PMC3367028 DOI: 10.1016/j.cyto.2012.03.014] [Citation(s) in RCA: 120] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2012] [Revised: 03/09/2012] [Accepted: 03/16/2012] [Indexed: 12/12/2022]
Abstract
D-dopachrome tautomerase (D-DT) is a newly described cytokine and a member of the macrophage migration inhibitory factor (MIF) protein superfamily. MIF is a broadly expressed pro-inflammatory cytokine that regulates both the innate and the adaptive immune response. MIF activates the MAP kinase cascade, modulates cell migration, and counter-acts the immunosuppressive effects of glucocorticoids. For many cell types, MIF also acts as an important survival or anti-apoptotic factor. Circulating MIF levels are elevated in the serum in different infectious and autoimmune diseases, and neutralization of the MIF protein via antibodies or small molecule antagonists improves the outcome in numerous animal models of human disease. Recently, a detailed investigation of the biological role of the closely homologous protein D-DT, which is encoded by a gene adjacent to MIF, revealed an overlapping functional spectrum with MIF. The D-DT protein also is present in most tissues and circulates in serum at similar concentrations as MIF. D-DT binds the MIF cell surface receptor complex, CD74/CD44, with high affinity and induces similar cell signaling and effector functions. Furthermore, an analysis of the signaling properties of the two proteins showed that they work cooperatively, and that neutralization of D-DT in vivo significantly decreases inflammation. In this review, we highlight the similarities and differences between MIF and D-DT, which we propose to designate "MIF-2", and discuss the implication of D-DT/MIF-2 expression for MIF-based therapies.
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Affiliation(s)
- Melanie Merk
- Center of Integrated Protein Science Munich, Division of Clinical Pharmacology, LMU Munich, Germany
| | | | - Stefan Endres
- Center of Integrated Protein Science Munich, Division of Clinical Pharmacology, LMU Munich, Germany
| | - Richard Bucala
- Internal Medicine Yale University School of Medicine, New Haven, CT, 06520
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