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Powers M, Minchella D, Gonzalez-Acevedo M, Escutia-Plaza D, Wu J, Heger C, Milne G, Aschner M, Liu Z. Loss of hepatic manganese transporter ZIP8 disrupts serum transferrin glycosylation and the glutamate-glutamine cycle. J Trace Elem Med Biol 2023; 78:127184. [PMID: 37163821 DOI: 10.1016/j.jtemb.2023.127184] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Revised: 04/07/2023] [Accepted: 04/26/2023] [Indexed: 05/12/2023]
Abstract
BACKGROUND ZIP8, encoded by SLC39A8, is a membrane transporter that facilitates the cellular uptake of divalent biometals including zinc (Zn), manganese (Mn), and iron (Fe). The hepatic system has long been accepted as the central modulator for whole-body biometal distribution. Earlier investigations suggest the propensity of ZIP8 to prioritize Mn influx, as opposed to Fe or Zn, in hepatocytes. Hepatic ZIP8 Mn transport is crucial for maintaining homeostasis of various Mn-dependent metalloenzymes and their associated pathways. Herein, we hypothesize that a drastic decrease in systemic Mn, via the loss of hepatic ZIP8, disrupts two unique cellular pathways, post-translational glycosylation and the glutamate-glutamine cycle. METHODS ZIP8 liver-specific knockout (LSKO) mice were chosen in an attempt to substantially decrease whole-body Mn levels. To further elucidate the role of Mn in serum glycosylation, a Mn-deficient diet was adopted in conjunction with the LSKO mice to model a near-complete loss of systemic Mn. After the treatment course, transferrin sialylation profiles were determined using imaged capillary isoelectric focusing (icIEF). We also investigated the role of Mn in the glutamate-glutamine cycle; the conversion of glutamate to glutamine in F/F and LSKO mice was assessed by the glutamine/glutamate ratio in cerebrospinal fluid (CSF) via HPLC-MS. An open-field study was ultimately conducted to check if these mice displayed atypical behavior. RESULTS Two major biological pathways were found to be significantly altered due to the loss of hepatic ZIP8. We identified a disparity between F/F and LSKO transferrin sialylation profiles that were exacerbated under a Mn-deficient diet. Additionally, we discovered a neurotransmitter imbalance between the levels of glutamine and glutamate, exclusive to LSKO mice. This was characterized by the decreased glutamine/glutamate ratio in CSF. Secondary to the neurotransmitter alteration, LSKO mice exhibited an increase in locomotor activity in an open-field. CONCLUSION Our model successfully established a connection between the loss of hepatic ZIP8 and two Mn-dependent cellular pathways, namely, protein glycosylation and the glutamate-glutamine cycle.
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Affiliation(s)
- Michael Powers
- Department of Biological Sciences, Oakland University, Rochester, MI, USA
| | - Dean Minchella
- Department of Biological Sciences, Oakland University, Rochester, MI, USA
| | | | | | - Jiaqi Wu
- ProteinSimple, A Bio-Techne Brand, San Jose, CA, USA
| | - Chris Heger
- ProteinSimple, A Bio-Techne Brand, San Jose, CA, USA
| | - Ginger Milne
- Neurochemistry Core, Vanderbilt University Medical Center, Nashville, TN 37232-6602, USA
| | - Michael Aschner
- Department of Cellular Biology and Pharmacology, Albert Einstein Medical College, New York, USA
| | - Zijuan Liu
- Department of Biological Sciences, Oakland University, Rochester, MI, USA.
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Seleno-Metabolites and Their Precursors: A New Dawn for Several Illnesses? Metabolites 2022; 12:metabo12090874. [PMID: 36144278 PMCID: PMC9504997 DOI: 10.3390/metabo12090874] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 09/12/2022] [Accepted: 09/13/2022] [Indexed: 01/18/2023] Open
Abstract
Selenium (Se) is an essential element for human health as it is involved in different physiological functions. Moreover, a great number of Se compounds can be considered potential agents in the prevention and treatment of some diseases. It is widely recognized that Se activity is related to multiple factors, such as its chemical form, dose, and its metabolism. The understanding of its complex biochemistry is necessary as it has been demonstrated that the metabolites of the Se molecules used to be the ones that exert the biological activity. Therefore, the aim of this review is to summarize the recent information about its most remarkable metabolites of acknowledged biological effects: hydrogen selenide (HSe−/H2Se) and methylselenol (CH3SeH). In addition, special attention is paid to the main seleno-containing precursors of these derivatives and their role in different pathologies.
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Titov EA, Sosedova LM, Novikov MA, Zvereva MV, Rukavishnikov VS, Lakhman OL. The Analysis of Acute and Subacute Toxicity of Silver Selenide Nanoparticles Encapsulated in Arabinogalactan Polymer Matrix. Polymers (Basel) 2022; 14:polym14153200. [PMID: 35956714 PMCID: PMC9370907 DOI: 10.3390/polym14153200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 07/25/2022] [Accepted: 07/27/2022] [Indexed: 11/16/2022] Open
Abstract
The acute and subacute toxicity of a newly synthesized silver selenide nanoparticles encapsulated in a natural polymeric matrix of arabinogalactan study has been studied. The nanocomposite is a promising material for the design of diagnostic and therapeutic drugs. It can also be used for the preparation of fluorescent labels and in thermal oncotherapy. The employment of binary nanocomposites enables one to unveil the potential hidden in metals which constitute these composites. The study of acute toxicity, carried out by the oral administration of nanocomposites at a dose of 2000 mg/kg, has shown that the compound belongs to low-toxic substances of the 5th hazard class. With the subacute oral administration of nanocomposites at a dose of 500 μg/kg, slight changes are observed in the brain tissue and liver of experimental animals, indicating the development of compensatory–adaptive reactions. In the kidneys, the area of the Shumlyansky–Bowman chamber decreases by 40.5% relative to the control group. It is shown that the application of the protective properties of selenium, which is contained in the composite, helps to reduce the toxicity of silver.
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Affiliation(s)
- Evgeniy A. Titov
- East Siberian Institute of Medical and Ecological Research, 665827 Angarsk, Russia
- Correspondence: ; Tel.: +792-470-908-89
| | - Larisa M. Sosedova
- East Siberian Institute of Medical and Ecological Research, 665827 Angarsk, Russia
| | - Mikhail A. Novikov
- East Siberian Institute of Medical and Ecological Research, 665827 Angarsk, Russia
| | - Marina V. Zvereva
- A.E. Favorsky Irkutsk Institute of Chemistry, 664033 Irkutsk, Russia
| | | | - Oleg L. Lakhman
- East Siberian Institute of Medical and Ecological Research, 665827 Angarsk, Russia
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Ehudin MA, Golla U, Trivedi D, Potlakayala SD, Rudrabhatla SV, Desai D, Dovat S, Claxton D, Sharma A. Therapeutic Benefits of Selenium in Hematological Malignancies. Int J Mol Sci 2022; 23:ijms23147972. [PMID: 35887320 PMCID: PMC9323677 DOI: 10.3390/ijms23147972] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 07/09/2022] [Accepted: 07/12/2022] [Indexed: 12/14/2022] Open
Abstract
Supplementing chemotherapy and radiotherapy with selenium has been shown to have benefits against various cancers. This approach has also been shown to alleviate the side effects associated with standard cancer therapies and improve the quality of life in patients. In addition, selenium levels in patients have been correlated with various cancers and have served as a diagnostic marker to track the efficiency of treatments or to determine whether these selenium levels cause or are a result of the disease. This concise review presents a survey of the selenium-based literature, with a focus on hematological malignancies, to demonstrate the significant impact of selenium in different cancers. The anti-cancer mechanisms and signaling pathways regulated by selenium, which impart its efficacious properties, are discussed. An outlook into the relationship between selenium and cancer is highlighted to guide future cancer therapy development.
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Affiliation(s)
- Melanie A. Ehudin
- Division of Hematology and Oncology, Department of Pediatrics, Pennsylvania State University College of Medicine, Hershey, PA 17033, USA; (M.A.E.); (S.D.)
| | - Upendarrao Golla
- Division of Hematology and Oncology, Department of Medicine, Pennsylvania State University College of Medicine, Hershey, PA 17033, USA; (U.G.); (D.C.)
- Penn State Cancer Institute, Pennsylvania State University College of Medicine, Hershey, PA 17033, USA; (D.T.); (D.D.)
| | - Devnah Trivedi
- Penn State Cancer Institute, Pennsylvania State University College of Medicine, Hershey, PA 17033, USA; (D.T.); (D.D.)
| | - Shobha D. Potlakayala
- Department of Biological Sciences, School of Science Engineering and Technology, Penn State Harrisburg, Middletown, PA 17057, USA; (S.D.P.); (S.V.R.)
| | - Sairam V. Rudrabhatla
- Department of Biological Sciences, School of Science Engineering and Technology, Penn State Harrisburg, Middletown, PA 17057, USA; (S.D.P.); (S.V.R.)
| | - Dhimant Desai
- Penn State Cancer Institute, Pennsylvania State University College of Medicine, Hershey, PA 17033, USA; (D.T.); (D.D.)
- Department of Pharmacology, Pennsylvania State University College of Medicine, Hershey, PA 17033, USA
| | - Sinisa Dovat
- Division of Hematology and Oncology, Department of Pediatrics, Pennsylvania State University College of Medicine, Hershey, PA 17033, USA; (M.A.E.); (S.D.)
| | - David Claxton
- Division of Hematology and Oncology, Department of Medicine, Pennsylvania State University College of Medicine, Hershey, PA 17033, USA; (U.G.); (D.C.)
- Penn State Cancer Institute, Pennsylvania State University College of Medicine, Hershey, PA 17033, USA; (D.T.); (D.D.)
| | - Arati Sharma
- Division of Hematology and Oncology, Department of Medicine, Pennsylvania State University College of Medicine, Hershey, PA 17033, USA; (U.G.); (D.C.)
- Penn State Cancer Institute, Pennsylvania State University College of Medicine, Hershey, PA 17033, USA; (D.T.); (D.D.)
- Department of Pharmacology, Pennsylvania State University College of Medicine, Hershey, PA 17033, USA
- Correspondence:
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Morphofunctional changes in the tissue of the brain, liver and kidneys of white rats under the influence of selenium nanocomposite encapsulated in the polymer matrix of arabinogalactan. ACTA BIOMEDICA SCIENTIFICA 2021. [DOI: 10.29413/abs.2021-6.5.9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Introduction. Due to their high biocompatibility, substances based on nanosized selenium particles, encapsulated in natural or synthetic polymer matrices, are promising materials for the creation of biomedical preparations of diagnostic and therapeutic value. Selenium nanoparticles are successfully used in the diagnosis of various types of cancer. In addition to the diagnostic value, selenium nanoparticles have their own prophylactic and oncological effect. This paper presents the results of a study of the toxicity of the Se nanocomposite encapsulated in the polymer matrix of arabinogalactan (SeAG). The emergence and development of the pathological process in the tissue of the brain, liver and kidneys during subacute administration of this nanocomposite was studied.Materials and methods. Twenty white outbred male rats weighing 200–220 g were used in the work. Animals were orally administered a solution of the selenium nanocomposite at a dose of 500 μg per kilogram of animal body weight for 10 days. Then, using the methods of histological analysis, the severity of the biological response of the organism to the introduction of this nanocomposite was assessed. An analysis of the state of the tissue of the liver, kidneys and the sensorimotor cortex of the brain was carried out.Results. With the intragastric administration of this drug, there is stasis of blood in the portal tracts, a pronounced macrophage reaction and diapedesis of leukocytes in the liver tissue. There is a decrease in the number of normal neurons per unit area, a decrease in the number of astroglia cells and an increase in the number of degeneratively altered neurons in the tissue of the sensorimotor cortex. There is also an increase in connective tissue in the cortex of the kidney, with the formation of fibrosis and a decrease in the area of the Shumlyansky – Bowman capsule.Conclusion. The effect of the investigated nanocomposite is characterized by the development of a pronounced pathological process in the central nervous and hepatorenal systems of the body.
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