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Tsentalovich YP, Zelentsova EA, Yanshole LV, Yanshole VV, Odud IM. Most abundant metabolites in tissues of freshwater fish pike-perch (Sander lucioperca). Sci Rep 2020; 10:17128. [PMID: 33051472 PMCID: PMC7555489 DOI: 10.1038/s41598-020-73895-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Accepted: 09/21/2020] [Indexed: 01/22/2023] Open
Abstract
Quantitative metabolomic analysis was performed for eleven tissues of freshwater fish pike-perch (Sander lucioperca), including gill, heart, liver, kidney, spleen, muscle, brain, milt, lens, aqueous (AH) and vitreous (VH) humors with the use of NMR spectroscopy. The absolute values of concentrations were determined for more than 65 most abundant metabolites in every tissue. It was found that from the metabolomic viewpoint, kidney and gill are the most similar tissues, while the metabolomic compositions of ocular tissues—lens, AH, and VH significantly differ from that of other tissues. The combinations of intracellular osmolytes and antioxidants are specific for every tissue. In particular, the concentration of antioxidant ovothiol A in the lens is much higher than in any other tissue, while the brain enjoys the elevated level of ascorbate. The most abundant osmolyte in the fish spleen, muscle, and heart is taurine, and in the brain, gill, and lens—myo-inositol. Other important osmolytes specific for particular tissues are N-acetyl-histidine, N-acetyl-aspartate, betaine, threonine-phosphoethanolamine, and serine-phosphoethanolamine. The quantitative data obtained in the present work can be used as the baseline metabolite concentrations in the fish tissues to evaluate the influence of seasonal, ecological and other factors on the fish metabolism.
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Affiliation(s)
- Yuri P Tsentalovich
- International Tomography Center SB RAS, Institutskaya 3a, Novosibirsk, 630090, Russia.
| | - Ekaterina A Zelentsova
- International Tomography Center SB RAS, Institutskaya 3a, Novosibirsk, 630090, Russia.,Novosibirsk State University, Pirogova 2, Novosibirsk, 630090, Russia
| | - Lyudmila V Yanshole
- International Tomography Center SB RAS, Institutskaya 3a, Novosibirsk, 630090, Russia
| | - Vadim V Yanshole
- International Tomography Center SB RAS, Institutskaya 3a, Novosibirsk, 630090, Russia.,Novosibirsk State University, Pirogova 2, Novosibirsk, 630090, Russia
| | - Iliya M Odud
- Novosibirsk State University, Pirogova 2, Novosibirsk, 630090, Russia
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2
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Lin YN, Khan S, Song Y, Dong M, Shen Y, Tran DK, Pang C, Zhang F, Wooley KL. A Tale of Drug-Carrier Optimization: Controlling Stimuli Sensitivity via Nanoparticle Hydrophobicity through Drug Loading. NANO LETTERS 2020; 20:6563-6571. [PMID: 32787153 DOI: 10.1021/acs.nanolett.0c02319] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Interactions between drug molecules, nanocarrier components, and surrounding media influence the properties and therapeutic efficacies of nanomedicines. In this study, we investigate the role that reversible covalent loading of a hydrophobic drug exerts on intra-nanoparticle physical properties and explore the utility of this payload control strategy for tuning the access of active agents and, thereby, the stimuli sensitivity of smart nanomaterials. Glutathione sensitivity was controlled via altering the degree of hydrophobic payload loading of disulfide-linked camptothecin-conjugated sugar-based nanomaterials. Increases in degrees of camptothecin conjugation (fCPT) decreased aqueous accessibility and reduced glutathione-triggered release. Although the lowest fCPT gave the fastest camptothecin release, it resulted in the lowest camptothecin concentration. Remarkably, the highest fCPT resulted in a 5.5-fold improved selectivity against cancer vs noncancerous cells. This work represents an advancement in drug carrier design by demonstrating the importance of controlling the amount of drug loading on the overall payload and its availability.
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Affiliation(s)
- Yen-Nan Lin
- Departments of Chemistry, Chemical Engineering, and Materials Science & Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, College Station, Texas 77842, United States
- College of Medicine, Texas A&M University, Bryan, Texas 77807, United States
| | - Sarosh Khan
- Departments of Chemistry, Chemical Engineering, and Materials Science & Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, College Station, Texas 77842, United States
| | - Yue Song
- Departments of Chemistry, Chemical Engineering, and Materials Science & Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, College Station, Texas 77842, United States
| | - Mei Dong
- Departments of Chemistry, Chemical Engineering, and Materials Science & Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, College Station, Texas 77842, United States
| | - Yidan Shen
- Departments of Chemistry, Chemical Engineering, and Materials Science & Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, College Station, Texas 77842, United States
| | - David K Tran
- Departments of Chemistry, Chemical Engineering, and Materials Science & Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, College Station, Texas 77842, United States
| | - Ching Pang
- Departments of Chemistry, Chemical Engineering, and Materials Science & Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, College Station, Texas 77842, United States
| | - Fuwu Zhang
- Departments of Chemistry, Chemical Engineering, and Materials Science & Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, College Station, Texas 77842, United States
| | - Karen L Wooley
- Departments of Chemistry, Chemical Engineering, and Materials Science & Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, College Station, Texas 77842, United States
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Species-Specific, pH-Independent, Standard Redox Potential of Selenocysteine and Selenocysteamine. Antioxidants (Basel) 2020; 9:antiox9060465. [PMID: 32492814 PMCID: PMC7346207 DOI: 10.3390/antiox9060465] [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: 04/10/2020] [Revised: 05/06/2020] [Accepted: 05/21/2020] [Indexed: 12/30/2022] Open
Abstract
Microscopic redox equilibrium constants and standard redox potential values were determined to quantify selenolate-diselenide equilibria of biological significance. The highly composite, codependent acid-base and redox equilibria of selenolates could so far be converted into pH-dependent, apparent parameters (equilibrium constants, redox potentials) only. In this work, the selenolate-diselenide redox equilibria of selenocysteamine and selenocysteine against dithiothreitol were analyzed by quantitative nuclear magnetic resonance (NMR) methods to characterize the interfering acid-base and redox equilibria. The directly obtained, pH-dependent, conditional redox equilibrium constants were then decomposed by our method into pH-independent, microscopic constants, which characterize the two-electron redox transitions of selenocysteamine and selenocysteine. The 12 different, species-specific parameter values show close correlation with the respective selenolate basicities, providing a tool to estimate otherwise inaccessible site-specific selenolate-diselenide redox potentials of related moieties in large peptides and proteins.
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Tsentalovich YP, Yanshole VV, Yanshole LV, Zelentsova EA, Melnikov AD, Sagdeev RZ. Seasonal Variations and Interspecific Differences in Metabolomes of Freshwater Fish Tissues: Quantitative Metabolomic Profiles of Lenses and Gills. Metabolites 2019; 9:E264. [PMID: 31684114 PMCID: PMC6918250 DOI: 10.3390/metabo9110264] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 10/30/2019] [Accepted: 10/31/2019] [Indexed: 02/07/2023] Open
Abstract
This work represents the first comprehensive report on quantitative metabolomic composition of tissues of pike-perch (Sander lucioperca) and Siberian roach (Rutilus rutilus lacustris). The total of 68 most abundant metabolites are identified and quantified in the fish lenses and gills by the combination of LC-MS and NMR. It is shown that the concentrations of some compounds in the lens are much higher than that in the gills; that indicates the importance of these metabolites for the adaptation to the specific living conditions and maintaining the homeostasis of the fish lens. The lens metabolome undergoes significant seasonal changes due to the variations of dissolved oxygen level and fish feeding activity. The most season-affected metabolites are osmolytes and antioxidants, and the most affected metabolic pathway is the histidine pathway. In late autumn, the major lens osmolytes are N-acetyl-histidine and threonine phosphoethanolamine (Thr-PETA), while in winter the highest concentrations were observed for serine phosphoethanolamine (Ser-PETA) and myo-inositol. The presence of Thr-PETA and Ser-PETA in fish tissues and their role in cell osmotic protection are reported for the first time. The obtained concentrations can be used as baseline levels for studying the influence of environmental factors on fish health.
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Affiliation(s)
- Yuri P Tsentalovich
- International Tomography Center SB RAS, Institutskaya 3a, Novosibirsk 630090, Russia.
- Novosibirsk State University, Pirogova 2, Novosibirsk 630090, Russia.
| | - Vadim V Yanshole
- International Tomography Center SB RAS, Institutskaya 3a, Novosibirsk 630090, Russia.
- Novosibirsk State University, Pirogova 2, Novosibirsk 630090, Russia.
| | - Lyudmila V Yanshole
- International Tomography Center SB RAS, Institutskaya 3a, Novosibirsk 630090, Russia.
- Novosibirsk State University, Pirogova 2, Novosibirsk 630090, Russia.
| | - Ekaterina A Zelentsova
- International Tomography Center SB RAS, Institutskaya 3a, Novosibirsk 630090, Russia.
- Novosibirsk State University, Pirogova 2, Novosibirsk 630090, Russia.
| | - Arsenty D Melnikov
- International Tomography Center SB RAS, Institutskaya 3a, Novosibirsk 630090, Russia.
- Novosibirsk State University, Pirogova 2, Novosibirsk 630090, Russia.
| | - Renad Z Sagdeev
- International Tomography Center SB RAS, Institutskaya 3a, Novosibirsk 630090, Russia.
- Novosibirsk State University, Pirogova 2, Novosibirsk 630090, Russia.
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Yanshole VV, Yanshole LV, Zelentsova EA, Tsentalovich YP. Ovothiol A is the Main Antioxidant in Fish Lens. Metabolites 2019; 9:E95. [PMID: 31083459 PMCID: PMC6572425 DOI: 10.3390/metabo9050095] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Revised: 05/08/2019] [Accepted: 05/08/2019] [Indexed: 11/16/2022] Open
Abstract
Tissue protection from oxidative stress by antioxidants is of vital importance for cellular metabolism. The lens mostly consists of fiber cells lacking nuclei and organelles, having minimal metabolic activity; therefore, the defense of the lens tissue from the oxidative stress strongly relies on metabolites. Protein-free extracts from lenses and gills of freshwater fish, Sander lucioperca and Rutilus rutilus lacustris, were subjected to analysis using high-field 1H NMR spectroscopy and HPLC with optical and high-resolution mass spectrometric detection. It was found that the eye lenses of freshwater fish contain high concentrations of ovothiol A (OSH), i.e., one of the most powerful antioxidants exciting in nature. OSH was identified and quantified in millimolar concentrations. The concentration of OSH in the lens and gills depends on the fish genus and on the season. A possible mechanism of the reactive oxygen species deactivation in fish lenses is discussed. This work is the first to report on the presence of OSH in vertebrates. The presence of ovothiol in the fish tissue implies that it may be a significantly more common antioxidant in freshwater and marine animals than was previously thought.
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Affiliation(s)
- Vadim V Yanshole
- International Tomography Center SB RAS, Institutskaya 3a, 630090 Novosibirsk, Russia.
- Novosibirsk State University, Pirogova 2, 630090 Novosibirsk, Russia.
| | - Lyudmila V Yanshole
- International Tomography Center SB RAS, Institutskaya 3a, 630090 Novosibirsk, Russia.
- Novosibirsk State University, Pirogova 2, 630090 Novosibirsk, Russia.
| | - Ekaterina A Zelentsova
- International Tomography Center SB RAS, Institutskaya 3a, 630090 Novosibirsk, Russia.
- Novosibirsk State University, Pirogova 2, 630090 Novosibirsk, Russia.
| | - Yuri P Tsentalovich
- International Tomography Center SB RAS, Institutskaya 3a, 630090 Novosibirsk, Russia.
- Novosibirsk State University, Pirogova 2, 630090 Novosibirsk, Russia.
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Grenács Á, Lihi N, Sóvágó I, Várnagy K. The influence of penicillamine/cysteine mutation on the metal complexes of peptides. Dalton Trans 2017; 46:13472-13481. [DOI: 10.1039/c7dt02703f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Penicillamine in the internal position of a peptide sequence is an effective anchor for the deprotonation and metal ion coordination of amide groups.
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Affiliation(s)
- Ágnes Grenács
- Department of Inorganic and Analytical Chemistry
- University of Debrecen
- H-4032 Debrecen
- Hungary
| | - Norbert Lihi
- MTA-DE Redox and Homogeneous Catalytic Reaction Mechanisms Research Group
- University of Debrecen
- 4032 Debrecen
- Hungary
| | - Imre Sóvágó
- Department of Inorganic and Analytical Chemistry
- University of Debrecen
- H-4032 Debrecen
- Hungary
| | - Katalin Várnagy
- Department of Inorganic and Analytical Chemistry
- University of Debrecen
- H-4032 Debrecen
- Hungary
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Mirzahosseini A, Noszál B. Species-Specific Standard Redox Potential of Thiol-Disulfide Systems: A Key Parameter to Develop Agents against Oxidative Stress. Sci Rep 2016; 6:37596. [PMID: 27869189 PMCID: PMC5116634 DOI: 10.1038/srep37596] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Accepted: 10/27/2016] [Indexed: 11/13/2022] Open
Abstract
Microscopic standard redox potential, a new physico-chemical parameter was introduced and determined to quantify thiol-disulfide equilibria of biological significance. The highly composite, codependent acid-base and redox equilibria of thiols could so far be converted into pH-dependent, apparent redox potentials (E’°) only. Since the formation of stable metal-thiolate complexes precludes the direct thiol-disulfide redox potential measurements by usual electrochemical techniques, an indirect method had to be elaborated. In this work, the species-specific, pH-independent standard redox potentials of glutathione were determined primarily by comparing it to 1-methylnicotinamide, the simplest NAD+ analogue. Secondarily, the species-specific standard redox potentials of the two-electron redox transitions of cysteamine, cysteine, homocysteine, penicillamine, and ovothiol were determined using their microscopic redox equilibrium constants with glutathione. The 30 different, microscopic standard redox potential values show close correlation with the respective thiolate basicities and provide sound means for the development of potent agents against oxidative stress.
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Affiliation(s)
- Arash Mirzahosseini
- Department of Pharmaceutical Chemistry, Semmelweis University, Budapest, Hungary
| | - Béla Noszál
- Research Group of Drugs of Abuse and Doping Agents, Hungarian Academy of Sciences, Hungary
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Mazák K, Noszál B. Advances in microspeciation of drugs and biomolecules: Species-specific concentrations, acid-base properties and related parameters. J Pharm Biomed Anal 2016; 130:390-403. [PMID: 27066736 DOI: 10.1016/j.jpba.2016.03.053] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2016] [Revised: 03/24/2016] [Accepted: 03/25/2016] [Indexed: 01/14/2023]
Abstract
The pharmacokinetic and pharmacodynamic behaviour of drugs and the interacting biomolecules are highly influenced by their species-specific physico-chemical properties. The first of such bio-relevant, structure-dependent properties were the species-specific acid-base constants and the co-dependent concentrations, but the past decade brought significant advances to previously uncharted territories, including the experimental determination of species-specific partition coefficients, solubilities and redox equilibrium constants. This review gives an overview of the types and definitions of species-specific physico-chemical and analytical properties. We survey the pertinent literature, the fundamental relationships, and summarize some of our recent work that enabled the determination of species-specific partition coefficients for coexisting, inseparable protonation isomers and pH-independent, microscopic redox equilibrium constants. The thorough insight provided by these species-specific properties improves our understanding of the submolecular mechanism of pharmacokinetic processes. As a result, there are some pieces of clear-cut evidence of practical significance. A few of them are as follows: - passive diffusion into lipophilic media is not necessarily predominated by the non-charged species, contrary to the widespread misbelief. - the reactive microspecies in structure-controlled, highly specific biochemical reactions is not necessarily the major one. - a preventive defence system against oxidative stress can be based upon thiol-disulfide equilibria of custom-tailored redox potentials.
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Affiliation(s)
- Károly Mazák
- Semmelweis University, Department of Pharmaceutical Chemistry, Research Group of Drugs of Abuse and Doping Agents, Hungarian Academy of Sciences Hőgyes E. u. 9., H-1092 Budapest, Hungary
| | - Béla Noszál
- Semmelweis University, Department of Pharmaceutical Chemistry, Research Group of Drugs of Abuse and Doping Agents, Hungarian Academy of Sciences Hőgyes E. u. 9., H-1092 Budapest, Hungary.
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