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Hyrslova I, Kana A, Nesporova V, Mrvikova I, Doulgeraki AI, Lampova B, Doskocil I, Musilova S, Kieliszek M, Krausova G. In vitro digestion and characterization of selenized Saccharomyces cerevisiae, Pichia fermentans and probiotic Saccharomyces boulardii. J Trace Elem Med Biol 2024; 83:127402. [PMID: 38310829 DOI: 10.1016/j.jtemb.2024.127402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 01/10/2024] [Accepted: 01/26/2024] [Indexed: 02/06/2024]
Abstract
BACKGROUND AND OBJECTIVE Yeasts have the remarkable capability to transform and integrate inorganic selenium into their cellular structures, thereby enhancing its bioavailability and reducing its toxicity. In recent years, yeasts have attracted attention as potential alternative sources of protein. METHODS This study explores the selenium accumulation potential of two less explored yeast strains, namely the probiotic Saccharomyces boulardii CCDM 2020 and Pichia fermentas CCDM 2012, in comparison to the extensively studied Saccharomyces cerevisiae CCDM 272. Our investigation encompassed diverse stress conditions. Subsequently, the selenized yeasts were subjected to an INFOGEST gastrointestinal model. The adherence and hydrophobicity were determined with undigested cells RESULTS: Stress conditions had an important role in influencing the quantity and size of selenium nanoparticles (SeNPs) generated by the tested yeasts. Remarkably, SeMet synthesis was limited to Pichia fermentas CCDM 2012 and S. boulardii CCDM 2020, with S. cerevisiae CCDM 272 not displaying SeMet production at all. Throughout the simulated gastrointestinal digestion, the most substantial release of SeCys2, SeMet, and SeNPs from the selenized yeasts occurred during the intestinal phase. Notably, exception was found in strain CCDM 272, where the majority of particles were released during the oral phase. CONCLUSION The utilization of both traditional and non-traditional selenized yeast types, harnessed for their noted functional attributes, holds potential for expanding the range of products available while enhancing their nutritional value and health benefits.
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Affiliation(s)
- Ivana Hyrslova
- Department of Microbiology and Technology, Dairy Research Institute Ltd., Prague 160 00, Czech Republic; Department of Microbiology, Nutrition, and Dietetics, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences, Prague 165 00, Czech Republic.
| | - Antonin Kana
- Department of Analytical Chemistry, University of Chemistry and Technology, Prague 166 28, Czech Republic
| | - Vera Nesporova
- Department of Analytical Chemistry, University of Chemistry and Technology, Prague 166 28, Czech Republic
| | - Iva Mrvikova
- Department of Microbiology and Technology, Dairy Research Institute Ltd., Prague 160 00, Czech Republic; Department of Microbiology, Nutrition, and Dietetics, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences, Prague 165 00, Czech Republic
| | - Agapi I Doulgeraki
- Laboratory of Food Microbiology and Hygiene, Department of Food Science and Technology, School of Agriculture, Aristotle University of Thessaloniki, GR-541 24 Thessaloniki, Greece
| | - Barbora Lampova
- Department of Microbiology, Nutrition, and Dietetics, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences, Prague 165 00, Czech Republic
| | - Ivo Doskocil
- Department of Microbiology, Nutrition, and Dietetics, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences, Prague 165 00, Czech Republic
| | - Sarka Musilova
- Department of Microbiology, Nutrition, and Dietetics, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences, Prague 165 00, Czech Republic
| | - Marek Kieliszek
- Department of Food Biotechnology and Microbiology, Institute of Food Sciences, Warsaw University of Life Sciences - SGGW, Nowoursynowska 159C, 02-776 Warsaw, Poland.
| | - Gabriela Krausova
- Department of Microbiology and Technology, Dairy Research Institute Ltd., Prague 160 00, Czech Republic
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Hachemi MA, Cardoso D, De Marco M, Geraert PA, Briens M. Inorganic and Organic Selenium Speciation of Seleno-Yeasts Used as Feed Additives: New Insights from Elemental Selenium Determination. Biol Trace Elem Res 2023; 201:5839-5847. [PMID: 36934195 PMCID: PMC10620252 DOI: 10.1007/s12011-023-03633-z] [Citation(s) in RCA: 1] [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: 12/06/2022] [Accepted: 03/12/2023] [Indexed: 03/20/2023]
Abstract
Seleno-Yeasts (SY) used as feed additives are known to contain different Selenium (Se) species. Seleno-Yeasts has been shown, on previous analytical methods, to contain selenomethionine (SeMet), selenocysteine (SeCys), selenate (SeIV) and selenite (SeVI), and various other organic and inorganic Se forms identified but rarely quantified. A new advanced method has allowed elemental Se (Se0), an inorganic Se species, to be quantified, thereby obtaining better insight into the proportion of inorganic Se in SY products. The study aimed to quantify the Se0 in SY products and assess the proportion of inorganic Se in SY. The Se speciation of 13 fresh commercials SY from different suppliers and batches, was assayed for the total Se, inorganic Se species (SeIV, SeVI and Se0), and organic Se species (SeMet and SeCys). Results on total Se were in line with the expected Se concentrations for all evaluated samples. The proportion of Se present as Se0 ranged from 3.6% to 51.8%. The quantity of Se0 in the SY products, added to SeIV and SeVI, indicated an average proportion of inorganic Se of 14.2% for the 13 analyzed SY products. The proportion of Se as SeMet ranged from 19.0% to 71.8%, (average of 55.8%), and a large variability in the SeMet content was observed. The SeCys content was also variable, with an average of 3.8%, relative to the total Se. In conclusion, advances in the analytical characterization have revealed that SY products can have a significantly high proportion of inorganic Se, which could affect the bioavailability of Se from SY supplements and explain their variable and lower bio-efficacy than pure SeMet supplements, such as hydroxy-selenomethionine.
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Affiliation(s)
- Mohammed A Hachemi
- Adisseo France S.A.S., 10, Place du Général de Gaulle, 92160, Antony, France.
| | - Denise Cardoso
- Adisseo France S.A.S., 10, Place du Général de Gaulle, 92160, Antony, France
| | - Michele De Marco
- Adisseo France S.A.S., 10, Place du Général de Gaulle, 92160, Antony, France
| | | | - Mickael Briens
- Adisseo France S.A.S., 10, Place du Général de Gaulle, 92160, Antony, France
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Kieliszek M, Serrano Sandoval SN. The importance of selenium in food enrichment processes. A comprehensive review. J Trace Elem Med Biol 2023; 79:127260. [PMID: 37421809 DOI: 10.1016/j.jtemb.2023.127260] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Revised: 06/28/2023] [Accepted: 07/03/2023] [Indexed: 07/10/2023]
Abstract
Selenium is an essential element that determines the proper life functions of human and animal organisms. The content of selenium in food varies depending on the region and soil conditions. Therefore, the main source is a properly selected diet. However, in many countries, there are shortages of this element in the soil and local food. Too low an amount of this element in food can lead to many adverse changes in the body. The consequence of this may also be the occurrence of numerous potentially life-threatening diseases. Therefore, it is very important to properly introduce methods that condition the supplementation of the appropriate chemical form of this element, especially in areas with deficient selenium content. This review aims to summarize the published literature on the characterization of different types of selenium-enriched foods. At the same time, legal regulations and prospects for the future related to the production of food enriched with this element are presented. It should be noted that there are limitations and concerns with the production of such food due to the narrow safety range between the necessary and the toxic dose of this element. Therefore, selenium has been treated with special care for a very long time. For this reason, the presented mechanisms of production processes related to increasing the scale of selenium supplementation should be constantly monitored. Appropriate monitoring and development of the technological process for the production of selenium-enriched food is very important. Such food should ensure consumer safety and repeatability of the obtained product. Understanding the mechanisms and possibilities of selenium accumulation by plants and animals is one of the most important directions in the development of modern bromatology and the science of supplementation. This is particularly important in the case of rational nutrition and supplementing the human diet with an essential element such as selenium. Food technology is facing these challenges today.
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Affiliation(s)
- Marek Kieliszek
- Department of Food Biotechnology and Microbiology, Institute of Food Sciences, Warsaw University of Life Sciences-SGGW, Nowoursynowska 159C, 02-776 Warsaw, Poland.
| | - Sayra N Serrano Sandoval
- Tecnologico de Monterrey, Centro de Biotecnología FEMSA, Escuela de Ingeniería y Ciencias, Av. Eugenio Garza Sada 2501 Sur, C.P. 64849 Monterrey, NL, Mexico; Tecnologico de Monterrey, The Institute for Obesity Research, Monterrey, Av. Eugenio Garza Sada 2501 Sur, C.P. 64849 Monterrey, NL, Mexico
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González-Salitre L, Castañeda-Ovando A, Basilio-Cortés UA, del Carmen García-Contreras A, Rodríguez Serrano GM, Cardelle-Cobas A, Román-Gutiérrez AD, González-Olivares LG. Biogenic production of seleno-amino acids and seleno-nanoparticles by Saccharomyces boulardii. FOOD BIOSCI 2023. [DOI: 10.1016/j.fbio.2023.102552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2023]
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Fenner ED, Scapini T, da Costa Diniz M, Giehl A, Treichel H, Álvarez-Pérez S, Alves SL. Nature's Most Fruitful Threesome: The Relationship between Yeasts, Insects, and Angiosperms. J Fungi (Basel) 2022; 8:984. [PMID: 36294549 PMCID: PMC9605484 DOI: 10.3390/jof8100984] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2022] [Revised: 09/13/2022] [Accepted: 09/18/2022] [Indexed: 07/30/2023] Open
Abstract
The importance of insects for angiosperm pollination is widely recognized. In fact, approximately 90% of all plant species benefit from animal-mediated pollination. However, only recently, a third part player in this story has been properly acknowledged. Microorganisms inhabiting floral nectar, among which yeasts have a prominent role, can ferment glucose, fructose, sucrose, and/or other carbon sources in this habitat. As a result of their metabolism, nectar yeasts produce diverse volatile organic compounds (VOCs) and other valuable metabolites. Notably, some VOCs of yeast origin can influence insects' foraging behavior, e.g., by attracting them to flowers (although repelling effects have also been reported). Moreover, when insects feed on nectar, they also ingest yeast cells, which provide them with nutrients and protect them from pathogenic microorganisms. In return, insects serve yeasts as transportation and a safer habitat during winter when floral nectar is absent. From the plant's point of view, the result is flowers being pollinated. From humanity's perspective, this ecological relationship may also be highly profitable. Therefore, prospecting nectar-inhabiting yeasts for VOC production is of major biotechnological interest. Substances such as acetaldehyde, ethyl acetate, ethyl butyrate, and isobutanol have been reported in yeast volatomes, and they account for a global market of approximately USD 15 billion. In this scenario, the present review addresses the ecological, environmental, and biotechnological outlooks of this three-party mutualism, aiming to encourage researchers worldwide to dig into this field.
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Affiliation(s)
- Eduardo D. Fenner
- Graduate Program in Environment and Sustainable Technologies, Federal University of Fronteira Sul, Campus Cerro Largo, Cerro Largo 97900-000, RS, Brazil
- Laboratory of Yeast Biochemistry, Federal University of Fronteira Sul, Campus Chapecó, Chapecó 89815-899, SC, Brazil
| | - Thamarys Scapini
- Laboratory of Microbiology and Bioprocesses, Federal University of Fronteira Sul, Campus Erechim, Erechim 99700-970, RS, Brazil
| | - Mariana da Costa Diniz
- Laboratory of Yeast Biochemistry, Federal University of Fronteira Sul, Campus Chapecó, Chapecó 89815-899, SC, Brazil
| | - Anderson Giehl
- Laboratory of Yeast Biochemistry, Federal University of Fronteira Sul, Campus Chapecó, Chapecó 89815-899, SC, Brazil
| | - Helen Treichel
- Laboratory of Microbiology and Bioprocesses, Federal University of Fronteira Sul, Campus Erechim, Erechim 99700-970, RS, Brazil
| | - Sergio Álvarez-Pérez
- Department of Animal Health, Faculty of Veterinary Medicine, Complutense University of Madrid, 28040 Madrid, Spain
| | - Sérgio L. Alves
- Graduate Program in Environment and Sustainable Technologies, Federal University of Fronteira Sul, Campus Cerro Largo, Cerro Largo 97900-000, RS, Brazil
- Laboratory of Yeast Biochemistry, Federal University of Fronteira Sul, Campus Chapecó, Chapecó 89815-899, SC, Brazil
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6
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He R, Ding C, Luo Y, Guo G, Tang J, Shen H, Wang Q, Zhang X. Congener-Induced Sulfur-Related Metabolism Interference Therapy Promoted by Photothermal Sensitization for Combating Bacteria. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2104410. [PMID: 34486185 DOI: 10.1002/adma.202104410] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 08/09/2021] [Indexed: 06/13/2023]
Abstract
Metabolic homeostasis is vital for individual cells to keep alive. Stronger metabolic homeostasis allows bacteria to survive in vivo and do persistent harm to hosts, which is especially typical in implant-associated infection (IAI) with biofilm intervention. Herein, based on the competitive role of selenium (Se) and sulfur (S) in bacteria metabolism as congeners, a congener-induced sulfur-related metabolism interference therapy (SMIT) eradicating IAI is proposed by specific destruction of bacteria metabolic homeostasis. The original nanodrug manganese diselenide (MnSe2 ) is devised to generate permeable H2 Se in bacteria, triggered by the acidic microenvironment. H2 Se, the congener substitution of H2 S, as a bacteria-specific intermediate metabolite, can embed itself into the H2 S-utilization pathway and further alternatively disrupt the downstream sulfur-related metabolism state inside bacteria. A proteomic study indicates ribosome-related proteins are heavily downregulated and the basic metabolic pathways are mainly disordered after SMIT, revealing the destruction of bacteria metabolic homeostasis. The efficiency of SMIT is significantly promoted with the mild temperature sensitization provided by the photothermal treatment (PTT) of MnSe2 nanoparticles, verified by the proteomic study and the anti-IAI effect in vitro and in vivo. With the intelligent nanodrug, a PTT-promoted SMIT strategy against IAI is provided and a new insight into the interference design toward metabolic homeostasis with biochemical similarity is demonstrated.
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Affiliation(s)
- Renke He
- Department of Orthopaedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Jiao Tong University, Shanghai, 200233, P. R. China
| | - Cheng Ding
- Department of Orthopaedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Jiao Tong University, Shanghai, 200233, P. R. China
| | - Yao Luo
- Department of Orthopaedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Jiao Tong University, Shanghai, 200233, P. R. China
| | - Geyong Guo
- Department of Orthopaedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Jiao Tong University, Shanghai, 200233, P. R. China
| | - Jin Tang
- Department of Clinical Laboratory, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Jiao Tong University, Shanghai, 200233, P. R. China
| | - Hao Shen
- Department of Orthopaedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Jiao Tong University, Shanghai, 200233, P. R. China
| | - Qiaojie Wang
- Department of Orthopaedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Jiao Tong University, Shanghai, 200233, P. R. China
| | - Xianlong Zhang
- Department of Orthopaedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Jiao Tong University, Shanghai, 200233, P. R. China
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Li Y, Yin Z, Zhang Y, Liu J, Cheng Y, Wang J, Pi F, Zhang Y, Sun X. Perspective of Microbe-based Minerals Fortification in Nutrition Security. FOOD REVIEWS INTERNATIONAL 2020. [DOI: 10.1080/87559129.2020.1728308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Ying Li
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, People’s Republic of China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, People’s Republic of China
- Synergetic Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi, People’s Republic of China
| | - Ziye Yin
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, People’s Republic of China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, People’s Republic of China
- Synergetic Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi, People’s Republic of China
| | - Yuanyuan Zhang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, People’s Republic of China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, People’s Republic of China
- Synergetic Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi, People’s Republic of China
| | - Jinghan Liu
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, People’s Republic of China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, People’s Republic of China
- Synergetic Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi, People’s Republic of China
| | - Yuliang Cheng
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, People’s Republic of China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, People’s Republic of China
- Synergetic Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi, People’s Republic of China
| | - Jiahua Wang
- College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, People’s Republic of China
| | - Fuwei Pi
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, People’s Republic of China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, People’s Republic of China
- Synergetic Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi, People’s Republic of China
| | - Yinzhi Zhang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, People’s Republic of China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, People’s Republic of China
- Synergetic Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi, People’s Republic of China
| | - Xiulan Sun
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, People’s Republic of China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, People’s Republic of China
- Synergetic Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi, People’s Republic of China
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Barbé F, Chevaux E, Castex M, Elcoso G, Bach A. Comparison of selenium bioavailability in milk and serum in dairy cows fed different sources of organic selenium. ANIMAL PRODUCTION SCIENCE 2020. [DOI: 10.1071/an18719] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Context
Selenium (Se) bioavailability is an important parameter to consider when supplementing trace minerals to optimise animal health and performance.
Aims
To assess the biological transfer of Se in milk and serum of three sources of organic Se in dairy cattle: two different pure selenomethionines (SM1, SM2) and Se-yeast (SY) containing selenomethionine, selenocysteine and other forms of organic Se.
Methods
Forty-five lactating Holstein dairy cows were randomly distributed in nine groups (three sources of organic Se supplemented at three doses: 0.1, 0.2 and 0.3 ppm organic Se in addition to 0.3 ppm of inorganic Se) and the Se concentrations in milk and serum were analysed at different times over 34 days of supplementation. Dry matter intake, milk yield, as well as milk fat and protein contents were recorded daily for each cow. Selenium bioavailability in milk was assessed as the ratio between amount of Se secreted in milk and amount of Se consumed.
Key results
The lowest Se dose (0.1 ppm), independent of source, did not allow detection a different pattern of transfer into milk and serum, suggesting that at this level, the Se supplied was mainly used to cover the animal needs. Supplementing SY at 0.2 and 0.3 ppm resulted in the most consistent secretion of Se into milk, whereas SM2 was most effective at increasing serum Se concentrations.
Conclusions
At the supplementing doses of 0.2 and 0.3 ppm, SY elicits an increased transfer of Se into milk concentrations compared with SM1 and SM2, whereas SM2 induces the greatest increase in Se serum concentrations.
Implications
SY is more effective than SM1 and SM2 at increasing Se transfer into milk. Supplementation of SM2 induces a pattern of Se transfer into milk and serum that differs from the other Se sources suggesting a different metabolism of this particular Se source.
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Comparative de novo transcriptomics and untargeted metabolomic analyses elucidate complicated mechanisms regulating celery (Apium graveolens L.) responses to selenium stimuli. PLoS One 2019; 14:e0226752. [PMID: 31887119 PMCID: PMC6936847 DOI: 10.1371/journal.pone.0226752] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Accepted: 12/03/2019] [Indexed: 11/30/2022] Open
Abstract
Presently, concern regarding the effects of selenium (Se) on the environment and organisms worldwide is increasing. Too much Se in the soil is harmful to plants. In this study, Illumina RNA sequencing and the untargeted metabolome of control and Se-treated celery seedlings were analyzed. In total, 297,911,046 clean reads were obtained and assembled into 150,218 transcripts (50,876 unigenes). A total of 36,287 unigenes were annotated using different databases. Additionally, 8,907 differentially expressed genes, including 5,319 up- and 3,588 downregulated genes, were identified between mock and Se-treated plants. “Phenylpropanoid biosynthesis” was the most enriched KEGG pathway. A total of 24 sulfur and selenocompound metabolic unigenes were differentially expressed. Furthermore, 1,774 metabolites and 237 significant differentially accumulated metabolites were identified using the untargeted metabolomic approach. We conducted correlation analyses of enriched KEGG pathways of differentially expressed genes and accumulated metabolites. Our findings suggested that candidate genes and metabolites involved in important biological pathways may regulate Se tolerance in celery. The results increase our understanding of the molecular mechanism responsible for celery’s adaptation to Se stress.
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Advances in electrospray mass spectrometry for the selenium speciation: Focus on Se-rich yeast. Trends Analyt Chem 2018. [DOI: 10.1016/j.trac.2017.10.008] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Vu DL, Ranglová K, Hájek J, Hrouzek P. Quantification of methionine and selenomethionine in biological samples using multiple reaction monitoring high performance liquid chromatography tandem mass spectrometry (MRM-HPLC-MS/MS). J Chromatogr B Analyt Technol Biomed Life Sci 2018; 1084:36-44. [PMID: 29558738 DOI: 10.1016/j.jchromb.2018.03.012] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Revised: 02/09/2018] [Accepted: 03/09/2018] [Indexed: 01/22/2023]
Abstract
Quantification of selenated amino-acids currently relies on methods employing inductively coupled plasma mass spectrometry (ICP-MS). Although very accurate, these methods do not allow the simultaneous determination of standard amino-acids, hampering the comparison of the content of selenated versus non-selenated species such as methionine (Met) and selenomethionine (SeMet). This paper reports two approaches for the simultaneous quantification of Met and SeMet. In the first approach, standard enzymatic hydrolysis employing Protease XIV was applied for the preparation of samples. The second approach utilized methanesulfonic acid (MA) for the hydrolysis of samples, either in a reflux system or in a microwave oven, followed by derivatization with diethyl ethoxymethylenemalonate. The prepared samples were then analyzed by multiple reaction monitoring high performance liquid chromatography tandem mass spectrometry (MRM-HPLC-MS/MS). Both approaches provided platforms for the accurate determination of selenium/sulfur substitution rate in Met. Moreover the second approach also provided accurate simultaneous quantification of Met and SeMet with a low limit of detection, low limit of quantification and wide linearity range, comparable to the commonly used gas chromatography mass spectrometry (GC-MS) method or ICP-MS. The novel method was validated using certified reference material in conjunction with the GC-MS reference method.
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Affiliation(s)
- Dai Long Vu
- Laboratory of Algal Biotechnology, Centre ALGATECH, Institute of Microbiology of the Czech Academy of Sciences, Opatovický mlýn, Novohradská 237, 379 81 Třeboň, Czech Republic
| | - Karolína Ranglová
- Laboratory of Algal Biotechnology, Centre ALGATECH, Institute of Microbiology of the Czech Academy of Sciences, Opatovický mlýn, Novohradská 237, 379 81 Třeboň, Czech Republic
| | - Jan Hájek
- Laboratory of Algal Biotechnology, Centre ALGATECH, Institute of Microbiology of the Czech Academy of Sciences, Opatovický mlýn, Novohradská 237, 379 81 Třeboň, Czech Republic
| | - Pavel Hrouzek
- Laboratory of Algal Biotechnology, Centre ALGATECH, Institute of Microbiology of the Czech Academy of Sciences, Opatovický mlýn, Novohradská 237, 379 81 Třeboň, Czech Republic.
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Bierla K, Lobinski R, Szpunar J. Determination of Proteinaceous Selenocysteine in Selenized Yeast. Int J Mol Sci 2018; 19:E543. [PMID: 29439473 PMCID: PMC5855765 DOI: 10.3390/ijms19020543] [Citation(s) in RCA: 9] [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: 12/26/2017] [Revised: 01/29/2018] [Accepted: 01/31/2018] [Indexed: 11/16/2022] Open
Abstract
A method for the quantitation of proteinaceous selenocysteine (SeCys) in Se-rich yeast was developed. The method is based on the reduction of the Se-Se and S-Se bridges with dithiotretiol, derivatization with iodoacetamide (carbamidomethylation), followed by HPLC-ICP MS. The chromatographic conditions were optimized for the total recovery of the proteinaceous selenocysteine, the minimum number of peaks in the chromatogram (reduction of derivatization products of other Se-species present) and the baseline separation. A typical chromatogram of a proteolytic digest of selenized yeast protein consisted of up to five peaks (including SeMet, carbamidomethylated (CAM)-SeCys, and Se(CAM)₂) identified by retention time matching with available standards and electrospray MS. Inorganic selenium non-specifically attached to proteins and selenomethionine could be quantified (in the form of Se(CAM)₂) along with SeCys. Selenocysteine, selenomethionine, inorganic selenium, and the water soluble-metabolite fraction accounted for the totality of selenium species in Se-rich yeast.
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Affiliation(s)
- Katarzyna Bierla
- Institute of Analytical Sciences, IPREM, UMR 5254, CNRS-UPPA, Hélioparc, 2 Avenue Angot, 64053 Pau, France.
| | - Ryszard Lobinski
- Institute of Analytical Sciences, IPREM, UMR 5254, CNRS-UPPA, Hélioparc, 2 Avenue Angot, 64053 Pau, France.
| | - Joanna Szpunar
- Institute of Analytical Sciences, IPREM, UMR 5254, CNRS-UPPA, Hélioparc, 2 Avenue Angot, 64053 Pau, France.
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Lazard M, Dauplais M, Blanquet S, Plateau P. Recent advances in the mechanism of selenoamino acids toxicity in eukaryotic cells. Biomol Concepts 2018; 8:93-104. [PMID: 28574376 DOI: 10.1515/bmc-2017-0007] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Accepted: 05/03/2017] [Indexed: 12/31/2022] Open
Abstract
Selenium is an essential trace element due to its incorporation into selenoproteins with important biological functions. However, at high doses it is toxic. Selenium toxicity is generally attributed to the induction of oxidative stress. However, it has become apparent that the mode of action of seleno-compounds varies, depending on its chemical form and speciation. Recent studies in various eukaryotic systems, in particular the model organism Saccharomyces cerevisiae, provide new insights on the cytotoxic mechanisms of selenomethionine and selenocysteine. This review first summarizes current knowledge on reactive oxygen species (ROS)-induced genotoxicity of inorganic selenium species. Then, we discuss recent advances on our understanding of the molecular mechanisms of selenocysteine and selenomethionine cytotoxicity. We present evidences indicating that both oxidative stress and ROS-independent mechanisms contribute to selenoamino acids cytotoxicity. These latter mechanisms include disruption of protein homeostasis by selenocysteine misincorporation in proteins and/or reaction of selenols with protein thiols.
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Contribution of the Yeast Saccharomyces cerevisiae Model to Understand the Mechanisms of Selenium Toxicity. MOLECULAR AND INTEGRATIVE TOXICOLOGY 2018. [DOI: 10.1007/978-3-319-95390-8_4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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15
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Imaging of Selenium by Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS) in 2-D Electrophoresis Gels and Biological Tissues. Methods Mol Biol 2018; 1661:219-227. [PMID: 28917048 DOI: 10.1007/978-1-4939-7258-6_16] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
Abstract
Selenium and selenoproteins are important components of living organisms that play a role in different biological processes. Laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) is a powerful analytical technique that has been employed to obtain distribution maps of selenium in biological tissues in a direct manner, as well as in selenoproteins, previously separated by their molecular masses and isoelectric points using two-dimensional polyacrylamide gel electrophoresis (2-D PAGE). In this chapter, we present the protocols to perform LA-ICP-MS imaging experiments, allowing the distribution visualization and determination of selenium and/or selenoproteins in biological systems.
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Surai PF, Kochish II, Fisinin VI, Velichko OA. Selenium in Poultry Nutrition: from Sodium Selenite to Organic Selenium Sources. J Poult Sci 2017; 55:79-93. [PMID: 32055160 PMCID: PMC6756489 DOI: 10.2141/jpsa.0170132] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2017] [Accepted: 11/07/2017] [Indexed: 12/24/2022] Open
Abstract
Selenium (Se) is an essential element in poultry nutrition and its bio-efficacy depends on its chemical form. A growing body of research proves that organic forms of Se, mainly selenomethionine (SeMet), in poultry diets have a range of important advantages over traditional sodium selenite. In fact, the organic Se concept considers SeMet as a storage form of Se in the chicken body. As chickens are not able to synthesize SeMet, its provision through diet is a key strategy to fight commercially relevant stresses. Indeed, in stress conditions, when increased selenoprotein expression requires additional Se, while its provision via feed usually decreases due to a reduction in feed consumption, Se reserves in the body (mainly in the muscles) could help maintain an effective antioxidant defense and prevent detrimental consequences of stresses. The poultry industry is looking for the most effective sources of organic Se for commercial use. In this review, advantages and disadvantages of main organic Se sources for poultry (Se-yeast, SeMet, and OH-SeMet) are analyzed, and future directions for the development of new Se sources are identified.
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Affiliation(s)
- Peter F. Surai
- Department of Microbiology and Biochemistry, Faculty of Veterinary Medicine, Trakia University, Stara Zagora 6000, Bulgaria
- Moscow State Academy of Veterinary Medicine and Biotechnology named after K.I. Skryabin, Moscow, 109472, Russia
- Department of Animal Nutrition, Faculty of Agricultural and Environmental Sciences, Szent Istvan University, Gödöllo H-2103, Hungary
| | - Ivan I. Kochish
- Moscow State Academy of Veterinary Medicine and Biotechnology named after K.I. Skryabin, Moscow, 109472, Russia
| | | | - Oksana A. Velichko
- Department of Ecology and Genetics, Tyumen State University, Tyumen, 625003, Russia
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Exposure to selenomethionine causes selenocysteine misincorporation and protein aggregation in Saccharomyces cerevisiae. Sci Rep 2017; 7:44761. [PMID: 28303947 PMCID: PMC5355996 DOI: 10.1038/srep44761] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Accepted: 02/13/2017] [Indexed: 12/23/2022] Open
Abstract
Selenomethionine, a dietary supplement with beneficial health effects, becomes toxic if taken in excess. To gain insight into the mechanisms of action of selenomethionine, we screened a collection of ≈5900 Saccharomyces cerevisiae mutants for sensitivity or resistance to growth-limiting amounts of the compound. Genes involved in protein degradation and synthesis were enriched in the obtained datasets, suggesting that selenomethionine causes a proteotoxic stress. We demonstrate that selenomethionine induces an accumulation of protein aggregates by a mechanism that requires de novo protein synthesis. Reduction of translation rates was accompanied by a decrease of protein aggregation and of selenomethionine toxicity. Protein aggregation was supressed in a ∆cys3 mutant unable to synthetize selenocysteine, suggesting that aggregation results from the metabolization of selenomethionine to selenocysteine followed by translational incorporation in the place of cysteine. In support of this mechanism, we were able to detect random substitutions of cysteinyl residues by selenocysteine in a reporter protein. Our results reveal a novel mechanism of toxicity that may have implications in higher eukaryotes.
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Adaba RI, Mann G, Raab A, Houssen WE, McEwan AR, Thomas L, Tabudravu J, Naismith JH, Jaspars M. Accurate quantification of modified cyclic peptides without the need for authentic standards. Tetrahedron 2016; 72:8603-8609. [PMID: 32818002 PMCID: PMC7115945 DOI: 10.1016/j.tet.2016.11.040] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
There is a growing interest in the use of cyclic peptides as therapeutics, but their efficient production is often the bottleneck in taking them forward in the development pipeline. We have recently developed a method to synthesise azole-containing cyclic peptides using enzymes derived from different cyanobactin biosynthetic pathways. Accurate quantification is crucial for calculation of the reaction yield and for the downstream biological testing of the products. In this study, we demonstrate the development and validation of two methods to accurately quantify these compounds in the reaction mixture and after purification. The first method involves the use of a HPLC coupled in parallel to an ESMS and an ICPMS, hence correlating the calculated sulfur content to the amount of cyclic peptide. The second method is an NMR ERETIC method for quantifying the solution concentration of cyclic peptides. These methods make the quantification of new compounds much easier as there is no need for the use of authentic standards when they are not available.
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Affiliation(s)
- Rosemary I. Adaba
- Marine Biodiscovery Centre, Department of Chemistry, University of Aberdeen, Meston Walk, Aberdeen. AB24 3UE, UK
| | - Greg Mann
- Biomedical Sciences Research Complex, University of St Andrews, North Haugh, St Andrews, Fife KY16 9ST, UK
| | - Andrea Raab
- TESLA, Department of Chemistry, University of Aberdeen, UK
| | - Wael E. Houssen
- Marine Biodiscovery Centre, Department of Chemistry, University of Aberdeen, Meston Walk, Aberdeen. AB24 3UE, UK
- Institute of Medical Sciences, University of Aberdeen, Aberdeen AB25 2ZD, UK
- Pharmacognosy Department, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
| | - Andrew R. McEwan
- Marine Biodiscovery Centre, Department of Chemistry, University of Aberdeen, Meston Walk, Aberdeen. AB24 3UE, UK
- Institute of Medical Sciences, University of Aberdeen, Aberdeen AB25 2ZD, UK
| | - Louise Thomas
- Marine Biodiscovery Centre, Department of Chemistry, University of Aberdeen, Meston Walk, Aberdeen. AB24 3UE, UK
- Institute of Medical Sciences, University of Aberdeen, Aberdeen AB25 2ZD, UK
| | - Jioji Tabudravu
- Marine Biodiscovery Centre, Department of Chemistry, University of Aberdeen, Meston Walk, Aberdeen. AB24 3UE, UK
| | - James H. Naismith
- Biomedical Sciences Research Complex, University of St Andrews, North Haugh, St Andrews, Fife KY16 9ST, UK
| | - Marcel Jaspars
- Marine Biodiscovery Centre, Department of Chemistry, University of Aberdeen, Meston Walk, Aberdeen. AB24 3UE, UK
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Brooks J, Lefebvre DD. Optimization of conditions for cadmium selenide quantum dot biosynthesis in Saccharomyces cerevisiae. Appl Microbiol Biotechnol 2016; 101:2735-2745. [DOI: 10.1007/s00253-016-8056-9] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Revised: 12/04/2016] [Accepted: 12/07/2016] [Indexed: 02/01/2023]
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20
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Cupp-Sutton KA, Ashby MT. Biological Chemistry of Hydrogen Selenide. Antioxidants (Basel) 2016; 5:E42. [PMID: 27879667 PMCID: PMC5187540 DOI: 10.3390/antiox5040042] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Revised: 11/04/2016] [Accepted: 11/08/2016] [Indexed: 12/13/2022] Open
Abstract
There are no two main-group elements that exhibit more similar physical and chemical properties than sulfur and selenium. Nonetheless, Nature has deemed both essential for life and has found a way to exploit the subtle unique properties of selenium to include it in biochemistry despite its congener sulfur being 10,000 times more abundant. Selenium is more easily oxidized and it is kinetically more labile, so all selenium compounds could be considered to be "Reactive Selenium Compounds" relative to their sulfur analogues. What is furthermore remarkable is that one of the most reactive forms of selenium, hydrogen selenide (HSe- at physiologic pH), is proposed to be the starting point for the biosynthesis of selenium-containing molecules. This review contrasts the chemical properties of sulfur and selenium and critically assesses the role of hydrogen selenide in biological chemistry.
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Affiliation(s)
- Kellye A Cupp-Sutton
- Department of Chemistry and Biochemistry, University of Oklahoma, Norman, OK 73019, USA.
| | - Michael T Ashby
- Department of Chemistry and Biochemistry, University of Oklahoma, Norman, OK 73019, USA.
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Ochsenkühn-Petropoulou M, Tsopelas F, Ruzik L, Bierła K, Szpunar J. Selenium and Selenium Species. Metallomics 2016. [DOI: 10.1002/9783527694907.ch6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Maria Ochsenkühn-Petropoulou
- National Technical University of Athens, School of Chemical Engineering; Laboratory of Inorganic and Analytical Chemistry; Iroon Polytechneiou 9, Zografou Campus 157 80 Athens Greece
| | - Fotios Tsopelas
- Warsaw University of Technology; Noakowskiego 3 00-664 Warsaw Poland
| | - Lena Ruzik
- National Technical University of Athens, School of Chemical Engineering; Laboratory of Inorganic and Analytical Chemistry; Iroon Polytechneiou 9, Zografou Campus 157 80 Athens Greece
| | - Katarzyna Bierła
- Warsaw University of Technology; Noakowskiego 3 00-664 Warsaw Poland
| | - Joanna Szpunar
- CNRS-UPPA IPREM; , Laboratory of Bioinorganic Analytical and Environmental Chemistry, UMR 5254; 2, Avenue Président Angot 64053 Pau France
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22
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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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24
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XU M, YANG LM, WANG QQ. Se-Hg Dual-element Labeling Strategy for Selectively Recognizing Selenoprotein and Selenopeptide. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2015. [DOI: 10.1016/s1872-2040(15)60852-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Fagan S, Owens R, Ward P, Connolly C, Doyle S, Murphy R. Biochemical Comparison of Commercial Selenium Yeast Preparations. Biol Trace Elem Res 2015; 166:245-59. [PMID: 25855372 DOI: 10.1007/s12011-015-0242-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2014] [Accepted: 01/18/2015] [Indexed: 02/02/2023]
Abstract
The trace mineral selenium (Se) is an essential element for human and animal nutrition. The addition of Se to the diet through dietary supplements or fortified food/feed is increasingly common owing to the often sub-optimal content of standard diets of many countries. Se supplements commercially available include the inorganic mineral salts such as sodium selenite or selenate, and organic forms such as Se-enriched yeast. Today, Se yeast is produced by several manufacturers and has become the most widely used source of Se for human supplementation and is also widely employed in animal nutrition where approval in all species has been granted by regulatory bodies such as the European Food Safety Authority (EFSA). Characterisation and comparison of Se-enriched yeast products has traditionally been made by quantifying total selenomethionine (SeMet) content. A disadvantage of this approach, however, is that it does not consider the effects of Se deposition on subsequent digestive availability. In this study, an assessment was made of the water-soluble extracts of commercially available Se-enriched yeast samples for free, peptide-bound and total water-soluble SeMet. Using LC-MS/MS, a total of 62 Se-containing proteins were identified across four Se yeast products, displaying quantitative/qualitative changes in abundance relative to the certified reference material, SELM-1 (P value <0.05; fold change ≥2). Overall, the study indicates that significant differences exist between Se yeast products in terms of SeMet content, Se-containing protein abundance and associated metabolic pathways.
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Affiliation(s)
- Sheena Fagan
- Alltech Biotechnology Centre, Dunboyne, County Meath, Ireland,
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Evaluation of sodium selenite effects on the potential probiotic Saccharomyces cerevisiae UFMG A-905: A physiological and proteomic analysis. J Funct Foods 2015. [DOI: 10.1016/j.jff.2015.06.048] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Seyhan D, Jehmlich N, von Bergen M, Fersch J, Rother M. Selenocysteine-independent suppression of UGA codons in the archaeon Methanococcus maripaludis. Biochim Biophys Acta Gen Subj 2015. [PMID: 26215786 DOI: 10.1016/j.bbagen.2015.07.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
BACKGROUND Proteins containing selenocysteine (sec) are found in Bacteria, Eukarya, and Archaea. While selenium-dependence of methanogenesis from H(2)+CO(2) in the archaeon Methanococcus maripaludis JJ is compensated by induction of a set of cysteine-containing homologs, growth on formate is abrogated in the absence of sec due to the dependence of formate dehydrogenase (Fdh) on selenium. Despite this dependence, formate-dependent growth occurs after prolonged incubation of M. maripaludis mutants lacking sec. METHODS To study this phenomenon, a M. maripaludis strain with only one Fdh isoform and an FdhA selenoprotein C-terminally tagged for affinity enrichment was constructed. Factors required for sec synthesis were deleted in this strain and translation of UGA in fdhA was analyzed physiologically, enzymatically, immunologically, and via mass spectrometry. RESULTS M. maripaludis JJ mutants lacking sec synthesis grew at least five times more slowly than the wild type on formate due to a 20-35-fold reduction of Fdh activity. The enzyme in the mutant strains lacked sec but was still produced as a full-length protein. Peptide mass spectrometry revealed that both cysteine (cys) and tryptophan (trp) were inserted at the UGA encoding sec without apparent mutations in tRNA(cys) or tRNA(trp), respectively. CONCLUSIONS We demonstrate that M. maripaludis has the inherent capacity to translate UGA with cys and trp; other mechanisms to replace sec with cys in the absence of selenium could thereby be ruled out. GENERAL SIGNIFICANCE This study exemplifies how an organism uses the inherent flexibility in its canonical protein synthesis machinery to recover some activity of an essential selenium-dependent enzyme in the absence of sec.
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Affiliation(s)
- Deniz Seyhan
- Institute of Molecular Biosciences, Johann Wolfgang Goethe Universität Frankfurt, Marie-Curie-Str. 9, 60439 Frankfurt am Main, Germany
| | - Nico Jehmlich
- Department of Proteomics, Helmholtz Centre for Environmental Research, Permoserstr. 15, 04318 Leipzig, Germany
| | - Martin von Bergen
- Department of Proteomics, Helmholtz Centre for Environmental Research, Permoserstr. 15, 04318 Leipzig, Germany; Department of Metabolomics, Helmholtz Centre for Environmental Research, Permoserstr. 15, 04318 Leipzig, Germany; Center for Microbial Communities, Department of Chemistry and Bioscience, Aalborg University, Fredrik Bajers Vej 7, 9220 Aalborg, Denmark
| | - Julia Fersch
- Institute of Microbiology, Technische Universität Dresden, 01062 Dresden, Germany
| | - Michael Rother
- Institute of Molecular Biosciences, Johann Wolfgang Goethe Universität Frankfurt, Marie-Curie-Str. 9, 60439 Frankfurt am Main, Germany; Institute of Microbiology, Technische Universität Dresden, 01062 Dresden, Germany.
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28
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Park M, Lee SH, Pak YN. Analysis of selenoaminoacids and selenoproteins in blood serum of sows fed by selenium fortified feed. ANALYTICAL SCIENCE AND TECHNOLOGY 2015. [DOI: 10.5806/ast.2015.28.3.196] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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29
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Surai PF, Fisinin VI. Selenium in pig nutrition and reproduction: boars and semen quality-a review. ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES 2015; 28:730-46. [PMID: 25924964 PMCID: PMC4413004 DOI: 10.5713/ajas.14.0593] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/01/2014] [Revised: 10/14/2014] [Accepted: 11/23/2014] [Indexed: 01/01/2023]
Abstract
Selenium plays an important role in boar nutrition via participating in selenoprotein synthesis. It seems likely that selenoproteins are central for antioxidant system regulation in the body. Se-dependent enzyme glutathione peroxidase (GSH-Px) is the most studied selenoprotein in swine production. However, roles of other selenoproteins in boar semen production and maintenance of semen quality also need to be studied. Boar semen is characterised by a high proportion of easily oxidized long chain polyunsaturated fatty acids and requires an effective antioxidant defense. The requirement of swine for selenium varies depending on many environmental and other conditions and, in general, is considered to be 0.15 to 0.30 mg/kg feed. It seems likely that reproducing sows and boars are especially sensitive to Se deficiency, and meeting their requirements is an important challenge for pig nutritionists. In fact, in many countries there are legal limits as to how much Se may be included into the diet and this restricts flexibility in terms of addressing the Se needs of the developing and reproducing swine. The analysis of data of various boar trials with different Se sources indicates that in some cases when background Se levels were low, there were advantages of Se dietary supplementation. It is necessary to take into account that only an optimal Se status of animals is associated with the best antioxidant protection and could have positive effects on boar semen production and its quality. However, in many cases, background Se levels were not determined and therefore, it is difficult to judge if the basic diets were deficient in Se. It can also be suggested that, because of higher efficacy of assimilation from the diet, and possibilities of building Se reserves in the body, organic selenium in the form of selenomethionine (SeMet) provided by a range of products, including Se-Yeast and SeMet preparations is an important source of Se to better meet the needs of modern pig genotypes in commercial conditions of intensive pig production.
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Affiliation(s)
- Peter F Surai
- Department of Animal Nutrition, Faculty of Agricultural and Environmental Sciences, Szent Istvan University, Gödöllo H-2103, Hungary ; Department of Microbiology and Biochemistry, Faculty of Veterinary Medicine, Trakia University, Stara Zagora 6000, Bulgaria . ; Department of Veterinary Expertise and Microbiology, Faculty of Veterinary Medicine, Sumy National Agrarian University, Sumy, 40021, Ukraine . ; Odessa National Academy of Food Technologies, Odessa 65039, Ukraine
| | - Vladimir I Fisinin
- All-Russian Institute of Poultry Husbandry, Sergiev Posad, 141311, Russia
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Chahrour O, Cobice D, Malone J. Stable isotope labelling methods in mass spectrometry-based quantitative proteomics. J Pharm Biomed Anal 2015; 113:2-20. [PMID: 25956803 DOI: 10.1016/j.jpba.2015.04.013] [Citation(s) in RCA: 189] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2015] [Revised: 04/05/2015] [Accepted: 04/08/2015] [Indexed: 02/04/2023]
Abstract
Mass-spectrometry based proteomics has evolved as a promising technology over the last decade and is undergoing a dramatic development in a number of different areas, such as; mass spectrometric instrumentation, peptide identification algorithms and bioinformatic computational data analysis. The improved methodology allows quantitative measurement of relative or absolute protein amounts, which is essential for gaining insights into their functions and dynamics in biological systems. Several different strategies involving stable isotopes label (ICAT, ICPL, IDBEST, iTRAQ, TMT, IPTL, SILAC), label-free statistical assessment approaches (MRM, SWATH) and absolute quantification methods (AQUA) are possible, each having specific strengths and weaknesses. Inductively coupled plasma mass spectrometry (ICP-MS), which is still widely recognised as elemental detector, has recently emerged as a complementary technique to the previous methods. The new application area for ICP-MS is targeting the fast growing field of proteomics related research, allowing absolute protein quantification using suitable elemental based tags. This document describes the different stable isotope labelling methods which incorporate metabolic labelling in live cells, ICP-MS based detection and post-harvest chemical label tagging for protein quantification, in addition to summarising their pros and cons.
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Affiliation(s)
| | - Diego Cobice
- Spectroscopy Group, Analytical Services, Almac, UK
| | - John Malone
- Spectroscopy Group, Analytical Services, Almac, UK
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31
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Lazard M, Dauplais M, Blanquet S, Plateau P. Trans-sulfuration Pathway Seleno-amino Acids Are Mediators of Selenomethionine Toxicity in Saccharomyces cerevisiae. J Biol Chem 2015; 290:10741-50. [PMID: 25745108 DOI: 10.1074/jbc.m115.640375] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Indexed: 12/29/2022] Open
Abstract
Toxicity of selenomethionine, an organic derivative of selenium widely used as supplement in human diets, was studied in the model organism Saccharomyces cerevisiae. Several DNA repair-deficient strains hypersensitive to selenide displayed wild-type growth rate properties in the presence of selenomethionine indicating that selenide and selenomethionine exert their toxicity via distinct mechanisms. Cytotoxicity of selenomethionine decreased when the extracellular concentration of methionine or S-adenosylmethionine was increased. This protection resulted from competition between the S- and Se-compounds along the downstream metabolic pathways inside the cell. By comparing the sensitivity to selenomethionine of mutants impaired in the sulfur amino acid pathway, we excluded a toxic effect of Se-adenosylmethionine, Se-adenosylhomocysteine, or of any compound in the methionine salvage pathway. Instead, we found that selenomethionine toxicity is mediated by the trans-sulfuration pathway amino acids selenohomocysteine and/or selenocysteine. Involvement of superoxide radicals in selenomethionine toxicity in vivo is suggested by the hypersensitivity of a Δsod1 mutant strain, increased resistance afforded by the superoxide scavenger manganese, and inactivation of aconitase. In parallel, we showed that, in vitro, the complete oxidation of the selenol function of selenocysteine or selenohomocysteine by dioxygen is achieved within a few minutes at neutral pH and produces superoxide radicals. These results establish a link between superoxide production and trans-sulfuration pathway seleno-amino acids and emphasize the importance of the selenol function in the mechanism of organic selenium toxicity.
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Affiliation(s)
- Myriam Lazard
- From the Ecole Polytechnique, Laboratoire de Biochimie, CNRS, 91128 Palaiseau Cedex, France
| | - Marc Dauplais
- From the Ecole Polytechnique, Laboratoire de Biochimie, CNRS, 91128 Palaiseau Cedex, France
| | - Sylvain Blanquet
- From the Ecole Polytechnique, Laboratoire de Biochimie, CNRS, 91128 Palaiseau Cedex, France
| | - Pierre Plateau
- From the Ecole Polytechnique, Laboratoire de Biochimie, CNRS, 91128 Palaiseau Cedex, France
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Németh A, Dernovics M. Effective selenium detoxification in the seed proteins of a hyperaccumulator plant: the analysis of selenium-containing proteins of monkeypot nut (Lecythis minor) seeds. J Biol Inorg Chem 2015; 20:23-33. [PMID: 25373701 DOI: 10.1007/s00775-014-1206-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2014] [Accepted: 10/13/2014] [Indexed: 01/12/2023]
Abstract
A shotgun proteomic approach was applied to characterize the selenium (Se)-containing proteins of the selenium hyperaccumulator monkeypot nut (Lecythis minor) seeds. The exceptionally high Se content (>4,000 mg kg(-1)) of the sample enabled a straightforward procedure without the need for multiple preconcentration and fractionation steps. The proteins identified were sulfur-rich seed proteins, namely, 11S globulin (Q84ND2), 2S albumin (B6EU54), 2S sulfur-rich seed storage proteins (P04403 and P0C8Y8) and a 11S globulin-like protein (A0EM48). Database directed search for theoretically selenium-containing peptides was assisted by manual spectra evaluation to achieve around 25% coverage on sulfur analogues. Remarkable detoxification mechanisms on the proteome level were revealed in the form of multiple selenomethionine-methionine substitution and the lack of selenocysteine residues. The degree of selenomethionine substitution could be characterized by an exponential function that implies the inhibition of protein elongation by selenomethionine. Our results contribute to the deeper understanding of selenium detoxification procedures in hyperaccumulator plants.
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Affiliation(s)
- Anikó Németh
- Department of Applied Chemistry, Faculty of Food Science, Corvinus University of Budapest, Villányi út 29-33, Budapest, 1118, Hungary
| | - Mihály Dernovics
- Department of Applied Chemistry, Faculty of Food Science, Corvinus University of Budapest, Villányi út 29-33, Budapest, 1118, Hungary.
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Wrobel JK, Choi JJ, Xiao R, Eum SY, Kwiatkowski S, Wolff G, Spangler L, Power RF, Toborek M. Selenoglycoproteins attenuate adhesion of tumor cells to the brain microvascular endothelium via a process involving NF-κB activation. J Nutr Biochem 2014; 26:120-9. [PMID: 25465156 DOI: 10.1016/j.jnutbio.2014.09.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2014] [Revised: 09/09/2014] [Accepted: 09/16/2014] [Indexed: 01/05/2023]
Abstract
Selenium-containing compounds and selenized yeast have anticancer properties. In order to address possible mechanisms involved in these effects, selenoglycoproteins (SGPs) were extracted from selenium-enriched yeast at pH 4.0 and 6.5 (the fractions are called SGP40 and SGP65, respectively), followed by evaluation of their impact on the interactions of lung and breast tumor cells with human brain microvascular endothelial cells (HBMECs). Extracted SGPs, especially SGP40, significantly inhibited adhesion of tumor cells to HBMECs and their transendothelial migration. Because the active components of SGPs are unknown, small selenium-containing compounds [leucyl-valyl-selenomethionyl-arginine (LVSe-MR) and methylselenoadenosine (M-Se-A)], which are normally present in selenized yeast, were introduced as additional treatment groups. Treatment of HBMECs with SGP40, LVSe-MR and M-Se-A induced changes in gene signatures, which suggested a central involvement of nuclear factor (NF)-κB-dependent pathway. These observations were confirmed in the subsequent analysis of NF-κB DNA binding activity, quantitative measurements of the expression of selected genes and proteins, and tumor cell adhesion assay with a specific NF-κB inhibitor as the additional treatment factor. These findings indicate that specific organic selenium-containing compounds have the ability to inhibit tumor cell adhesion to brain endothelial cells via down-regulation of NF-κB. SGPs appear to be more effective than small selenium-containing compounds, suggesting the role of not only selenium but also the glycoprotein component in the observed protective impact.
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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
| | - Jeong June Choi
- 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
| | - Sung Yong Eum
- 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
| | - Leya Spangler
- 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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Vogiatzis C, Zachariadis G. Tandem mass spectrometry in metallomics and the involving role of ICP-MS detection: A review. Anal Chim Acta 2014; 819:1-14. [DOI: 10.1016/j.aca.2014.01.029] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2013] [Revised: 01/05/2014] [Accepted: 01/10/2014] [Indexed: 01/02/2023]
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Shao S, Mi X, Ouerdane L, Lobinski R, García-Reyes JF, Molina-Díaz A, Vass A, Dernovics M. Quantification of Se-Methylselenocysteine and Its γ-Glutamyl Derivative from Naturally Se-Enriched Green Bean (Phaseolus vulgaris vulgaris) After HPLC-ESI-TOF-MS and Orbitrap MS n -Based Identification. FOOD ANAL METHOD 2013. [DOI: 10.1007/s12161-013-9728-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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