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Tsymbalyuk OV, Davydovska TL, Naumenko AM, Voiteshenko IS, Veselsky SP, Nyporko AY, Pidhaietska AY, Kozolup MS, Skryshevsky VA. Mechanisms of regulation of motility of the gastrointestinal tract and the hepatobiliary system under the chronic action of nanocolloids. Sci Rep 2023; 13:3823. [PMID: 36882506 PMCID: PMC9992515 DOI: 10.1038/s41598-023-30958-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 03/03/2023] [Indexed: 03/09/2023] Open
Abstract
Modern cutting edge technologies of chemical synthesis enable the production of unique nanostructures with excess energy and high reactivity. Uncontrolled use of such materials in the food industry and pharmacology entail a risk for the development of a nanotoxicity crisis. Using the methods of tensometry, mechanokinetic analysis, biochemical methods, and bioinformatics, the current study showed that chronic (for six months) intragastrical burdening of rats with aqueous nanocolloids (AN) ZnO and TiO2 caused violations of the pacemaker-dependent mechanisms of regulation of spontaneous and neurotransmitter-induced contractions of the gastrointestinal tract (GIT) smooth muscles (SMs), and transformed the contraction efficiency indices (AU, in Alexandria units). Under the same conditions, the fundamental principle of distribution of physiologically relevant differences in the numeric values of the mechanokinetic parameters of spontaneous SM contractions between different parts of GIT is violated, which can potentially cause its pathological changes. Using molecular docking, typical bonds in the interfaces of the interaction of these nanomaterials with myosin II, a component of the contractile apparatus of smooth muscle cells (SMC) were investigated. In this connection, the study addressed the question of possible competitive relations between ZnO and TiO2 nanoparticles and actin molecules for binding sites on the myosin II actin-interaction interface. In addition, using biochemical methods, it was shown that chronic long-term exposure to nanocolloids causes changes in the primary active ion transport systems of cell plasma membranes, the activity of marker liver enzymes and disrupts the blood plasma lipid profile, which indicates the hepatotoxic effect of these nanocolloids.
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Affiliation(s)
- Olga V Tsymbalyuk
- Institute of High Technologies, Taras Shevchenko National University of Kyiv, 64, Volodymyrska Str., Kyiv, 01033, Ukraine
| | - Tamara L Davydovska
- Institute of High Technologies, Taras Shevchenko National University of Kyiv, 64, Volodymyrska Str., Kyiv, 01033, Ukraine
| | - Anna M Naumenko
- Institute of High Technologies, Taras Shevchenko National University of Kyiv, 64, Volodymyrska Str., Kyiv, 01033, Ukraine
| | - Ivan S Voiteshenko
- Institute of High Technologies, Taras Shevchenko National University of Kyiv, 64, Volodymyrska Str., Kyiv, 01033, Ukraine
| | - Stanislav P Veselsky
- Institute of High Technologies, Taras Shevchenko National University of Kyiv, 64, Volodymyrska Str., Kyiv, 01033, Ukraine
| | - Alex Y Nyporko
- Institute of High Technologies, Taras Shevchenko National University of Kyiv, 64, Volodymyrska Str., Kyiv, 01033, Ukraine
| | - Anastasiia Y Pidhaietska
- Institute of High Technologies, Taras Shevchenko National University of Kyiv, 64, Volodymyrska Str., Kyiv, 01033, Ukraine
| | - Mariya S Kozolup
- Department of Foreign Languages for Sciences, Ivan Franko National University of Lviv, 41 Doroshenko St., Lviv, 79000, Ukraine
| | - Valeriy A Skryshevsky
- Institute of High Technologies, Taras Shevchenko National University of Kyiv, 64, Volodymyrska Str., Kyiv, 01033, Ukraine. .,Corporation Science Park, Taras Shevchenko University of Kyiv, 60, Volodymyrska Str., Kyiv, 01033, Ukraine.
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Tsymbalyuk OV, Davydovska TL, Naumenko AM, Liashevych AN, Lupaina IS, Voiteshenko IS, Nuryshchenko NY, Skryshevsky VA. Functional state of the myometrium of rats under chronic in vivo effect of nanostructured ZnO and ТіО2 materials. REGULATORY MECHANISMS IN BIOSYSTEMS 2021. [DOI: 10.15421/022179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
The specificities of the structure and blood supply of the uterus facilitate a considerable accumulation of nanosized xenobiotics, including nanoparticles of metal oxides, in its tissues. Numerous in vitro and in vivo experiments demonstrated that nanoparticles of metal oxides (ZnO and TiO2) have significant cytotoxic activity, caused by oxidative stress induction. However, there is no information about the impact of these nanomaterials on the functional state of the myometrium under chronic exposure on the organism. Tenzometric methods and mechanokinetic analysis were used in our work to investigate the contractile activity of the myometrium of non-pregnant rats. The contractile activity was either spontaneous or induced by oxytocin (the uterotonic hormone) and acetylcholine (the agonist of muscarinic choline receptors) under chronic peroral intake of the ZnO and TiO2 aqueous nanocolloids into the organism. It was found that after burdening of rats with ZnO and ТіО2 aqueous nanocolloids there were no changes in the pacemaker-dependent mechanisms forming the frequency of spontaneous contractions in the myometrium, but there was a considerably induced increase in the AU index of contractions. It was shown that during the oxytocin-induced excitation of the myometrium under both chronic and short-term burdening of the rats with ZnO and TiO2 aqueous nanocolloids, the mechanisms that regulate the intracellular concentration of Ca2+ ions are the target for the nanomaterials. When the rats were burdened with ZnO aqueous nanocolloids for 6 months, during cholinergic excitation there was hyperstimulation of both M3-receptor-dependent mechanisms of Са2+ ions intake via the potential-governed Са2+-channels of L-type into the smooth muscles of the myometrium, and M2-receptor-dependent mechanisms, controlling the intracellular concentration of these cations. Thus, the regularities and mechanisms of the change in the functioning of uterine smooth muscles under chronic intake of the ZnO and TiO2 aqueous nanocolloids were determined in this study.
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Tsymbalyuk O, Davydovska T, Lisnyak V, Veselsky S, Zaderko A, Voiteshenko I, Naumenko A, Skryshevsky V. ZnO and TiO 2 Nanocolloids: State of Mechanisms that Regulating the Motility of the Gastrointestinal Tract and the Hepatobiliary System. ACS OMEGA 2021; 6:23960-23976. [PMID: 34568675 PMCID: PMC8459414 DOI: 10.1021/acsomega.1c02981] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Accepted: 08/20/2021] [Indexed: 06/13/2023]
Abstract
Using the transmission electron microscopy (TEM)/high-resolution TEM (HRTEM) and selected area electron diffraction (SAED) methods, it was shown that the nanocolloids of ZnO contain hydrolyzed ZnO nanoparticles (NPs). Typically, the nanocrystalline ZnO/Zn(OH)2 core is covered by an amorphous shell of zinc hydroxides, preventing the encapsulated crystal core from dissolving. Similar studies were carried out with TiO2 nanocolloids. It was found that burdening of rats for 30 days with a ZnO aqueous nanocolloid (AN) was accompanied by a narrowing of the amplitude range, a decrease (increase) in the frequency of spontaneous contractions (SCs), and an inhibition of the efficiency indices for smooth muscles (SMs) of the antrum and cecum. Under longer (100 days) burdening of rats with AN of ZnO, there was a tendency toward restoring the above parameters. In terms of the value and the direction of changes in most parameters for SCs of SMs, the effects (30 days) of TiO2 AN differed from those for ZnO AN and were almost the same in the case of their long-term impact. It was found that mostly M2-cholinoreceptor-dependent mechanisms of regulating the intracellular concentration of Ca2+ were sensitive to the effect of ZnO and TiO2 ANs. The molecular docking demonstrated that ZnO and TiO2 NPs did not compete with acetylcholine for the site of binding to M3 and M2 cholinoreceptors but may impact the affinity of orthosteric ligands to M2 cholinoreceptors. The studies showed that burdening rats with ZnO and TiO2 ANs was also accompanied by changes in the activity state of both intracellular enzymes and the ion transport systems for Na+, K+, and Ca2+, related to the processes of bile secretion, via the plasma membrane of hepatocytes.
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Affiliation(s)
- Olga Tsymbalyuk
- Institute
of High Technologies, Taras Shevchenko National
University of Kyiv, 64, Volodymyrska Str, 01033 Kyiv, Ukraine
| | - Tamara Davydovska
- Institute
of High Technologies, Taras Shevchenko National
University of Kyiv, 64, Volodymyrska Str, 01033 Kyiv, Ukraine
| | - Vladyslav Lisnyak
- Chemical
Faculty, Taras Shevchenko National University
of Kyiv, 64, Volodymyrska
Str., 01033 Kyiv, Ukraine
- Prešov
University in Prešov, Ul. 17. Novembra č. 1, 081 16 Prešov, Slovakia
| | - Stanislav Veselsky
- Institute
of High Technologies, Taras Shevchenko National
University of Kyiv, 64, Volodymyrska Str, 01033 Kyiv, Ukraine
| | - Alexander Zaderko
- Institute
of High Technologies, Taras Shevchenko National
University of Kyiv, 64, Volodymyrska Str, 01033 Kyiv, Ukraine
- Corporation
Science Park Taras Shevchenko University of Kyiv, 60, Volodymyrska Str., 01033 Kyiv, Ukraine
| | - Ivan Voiteshenko
- Institute
of High Technologies, Taras Shevchenko National
University of Kyiv, 64, Volodymyrska Str, 01033 Kyiv, Ukraine
| | - Anna Naumenko
- Institute
of High Technologies, Taras Shevchenko National
University of Kyiv, 64, Volodymyrska Str, 01033 Kyiv, Ukraine
| | - Valeriy Skryshevsky
- Institute
of High Technologies, Taras Shevchenko National
University of Kyiv, 64, Volodymyrska Str, 01033 Kyiv, Ukraine
- Corporation
Science Park Taras Shevchenko University of Kyiv, 60, Volodymyrska Str., 01033 Kyiv, Ukraine
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Karakhim SO, Shlykov SG, Babich LG, Sinko DV. Analysis of decay kinetics of the cytosolic calcium transient induced by oxytocin in rat myometrium smooth muscle cells. J Muscle Res Cell Motil 2021; 42:117-127. [PMID: 33590444 DOI: 10.1007/s10974-021-09598-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Accepted: 01/30/2021] [Indexed: 10/22/2022]
Abstract
The method of kinetic analysis of the relaxation phase of the mechanical response of the smooth muscle previously proposed by Burdyga and Kosterin was applied to study the dynamics of the decay of oxytocin-induced calcium transients in cytosol of the rat myometrium smooth muscle cell detected by a fluorescence signal generated by a calcium-sensitive probe fluo-4 using a laser scanning confocal microscope. The experimental data were well linearized in the coordinates ln [(Fm - F)/F] vs lnt (F and Fm are the current fluorescence intensity of the calcium probe and the fluorescence intensity at the maximum of the calcium transient, respectively, while t is the time). The empirical parameters n and τ were determined by which the maximal normalized relaxation rate Vn was calculated for five different ROIs (regions of interest) in the myocyte cytosol. It proved to be almost the same for all ROIs. The maximal normalized relaxation rate calculated from the fluorescence intensity was always lower than that calculated from the corresponding calcium concentration, i.e. the cytosolic Ca2+ concentration in the relaxation phase decreases faster than the corresponding fluorescence intensity. The value of the maximal normalized relaxation rate calculated both from the fluorescence intensity and from the force of oxytocin-induced contractions of isolated rat uterus longitudinal smooth muscles (according to Tsymbalyuk and Kosterin) was exactly the same. This indicates that in the relaxation phase, the decreasing curves of both the fluorescence intensity and the contraction forces coincide.
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Affiliation(s)
- S O Karakhim
- Palladin Institute of Biochemistry of the National Academy of Sciences of Ukraine, 9 Leontovicha Street, Kyiv, 01054, Ukraine.
| | - S G Shlykov
- Palladin Institute of Biochemistry of the National Academy of Sciences of Ukraine, 9 Leontovicha Street, Kyiv, 01054, Ukraine
| | - L G Babich
- Palladin Institute of Biochemistry of the National Academy of Sciences of Ukraine, 9 Leontovicha Street, Kyiv, 01054, Ukraine
| | - D V Sinko
- Taras Shevchenko Kyiv National University, Educational-Scientific Center "Biology and Medicine Institute", 64/13 Volodymyrska Street, Kyiv, 01601, Ukraine
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