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Singh I, Kumar S, Singh S, Wani MY. Overcoming resistance: Chitosan-modified liposomes as targeted drug carriers in the fight against multidrug resistant bacteria-a review. Int J Biol Macromol 2024; 278:135022. [PMID: 39182895 DOI: 10.1016/j.ijbiomac.2024.135022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2024] [Revised: 07/21/2024] [Accepted: 08/22/2024] [Indexed: 08/27/2024]
Abstract
Antimicrobial resistance (AMR) poses a significant global health threat, rendering standard antibiotics ineffective against multi-drug resistant bacteria. To tackle this urgent issue, innovative approaches are essential. Liposomes, small spherical vesicles made of a phospholipid bilayer, present a promising solution. These vesicles can encapsulate various medicines and are both biocompatible and biodegradable. Their ability to be modified for targeted tissue or cell uptake makes them an ideal drug delivery system. By delivering antibiotics directly to infection sites, liposomes minimize side effects and reduce the development of resistance. However, challenges such as poor stability and rapid drug leakage limit their biological application. Chitosan, a biocompatible polymer, enhances liposome interaction with specific tissues or cells, enabling selective drug release at infection sites. Incorporating chitosan into liposome formulations alters and diversifies their surface characteristics through electrostatic interactions, resulting in improved stability and pH-sensitive drug release. These interactions are crucial for enhancing drug retention and targeted delivery, especially in varying pH environments like tumor sites or infection areas, thereby improving therapeutic outcomes and reducing systemic side effects. This review discusses recent advancements, challenges, and the need for further research to optimize liposome formulations and enhance targeted drug delivery for effective AMR treatment. Chitosan-modified liposomes offer a promising strategy to overcome AMR and improve antimicrobial therapies.
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Affiliation(s)
- Ira Singh
- Functional Polymer Material Lab, Department of Chemistry, Harcourt Butler Technical University, Kanpur 208002, Uttar Pradesh, India
| | - Santosh Kumar
- Functional Polymer Material Lab, Department of Chemistry, Harcourt Butler Technical University, Kanpur 208002, Uttar Pradesh, India.
| | - Shalinee Singh
- Functional Polymer Material Lab, Department of Chemistry, Harcourt Butler Technical University, Kanpur 208002, Uttar Pradesh, India
| | - Mohmmad Younus Wani
- Department of Chemistry, College of Science, University of Jeddah, 21589 Jeddah, Saudi Arabia
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Lisakovska O, Labudzynskyi D, Khomenko A, Isaev D, Savotchenko A, Kasatkina L, Savosko S, Veliky M, Shymanskyi I. Brain vitamin D3-auto/paracrine system in relation to structural, neurophysiological, and behavioral disturbances associated with glucocorticoid-induced neurotoxicity. Front Cell Neurosci 2023; 17:1133400. [PMID: 37020845 PMCID: PMC10067932 DOI: 10.3389/fncel.2023.1133400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Accepted: 02/28/2023] [Indexed: 03/22/2023] Open
Abstract
IntroductionVitamin D3 (VD3) is a potent para/autocrine regulator and neurosteroid that can strongly influence nerve cell function and counteract the negative effects of glucocorticoid (GC) therapy. The aim of the study was to reveal the relationship between VD3 status and behavioral, structural-functional and molecular changes associated with GC-induced neurotoxicity.MethodsFemale Wistar rats received synthetic GC prednisolone (5 mg/kg b.w.) with or without VD3 (1000 IU/kg b.w.) for 30 days. Behavioral, histological, physiological, biochemical, molecular biological (RT-PCR, Western blotting) methods, and ELISA were used.Results and discussionThere was no difference in open field test (OFT), while forced swim test (FST) showed an increase in immobility time and a decrease in active behavior in prednisolone-treated rats, indicative of depressive changes. GC increased the perikaryon area, enlarged the size of the nuclei, and caused a slight reduction of cell density in CA1-CA3 hippocampal sections. We established a GC-induced decrease in the long-term potentiation (LTP) in CA1-CA3 hippocampal synapses, the amplitude of high K+-stimulated exocytosis, and the rate of Ca2+-dependent fusion of synaptic vesicles with synaptic plasma membranes. These changes were accompanied by an increase in nitration and poly(ADP)-ribosylation of cerebral proteins, suggesting the development of oxidative-nitrosative stress. Prednisolone upregulated the expression and phosphorylation of NF-κB p65 subunit at Ser311, whereas downregulating IκB. GC loading depleted the circulating pool of 25OHD3 in serum and CSF, elevated VDR mRNA and protein levels but had an inhibitory effect on CYP24A1 and VDBP expression. Vitamin D3 supplementation had an antidepressant-like effect, decreasing the immobility time and stimulating active behavior. VD3 caused a decrease in the size of the perikaryon and nucleus in CA1 hippocampal area. We found a recovery in depolarization-induced fusion of synaptic vesicles and long-term synaptic plasticity after VD3 treatment. VD3 diminished the intensity of oxidative-nitrosative stress, and suppressed the NF-κB activation. Its ameliorative effect on GC-induced neuroanatomical and behavioral abnormalities was accompanied by the 25OHD3 repletion and partial restoration of the VD3-auto/paracrine system.ConclusionGC-induced neurotoxicity and behavioral disturbances are associated with increased oxidative-nitrosative stress and impairments of VD3 metabolism. Thus, VD3 can be effective in preventing structural and functional abnormalities in the brain and behavior changes caused by long-term GC administration.
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Affiliation(s)
- Olha Lisakovska
- Department of Biochemistry of Vitamins and Coenzymes, Palladin Institute of Biochemistry, Kyiv, Ukraine
- *Correspondence: Olha Lisakovska,
| | - Dmytro Labudzynskyi
- Department of Biochemistry of Vitamins and Coenzymes, Palladin Institute of Biochemistry, Kyiv, Ukraine
| | - Anna Khomenko
- Department of Biochemistry of Vitamins and Coenzymes, Palladin Institute of Biochemistry, Kyiv, Ukraine
| | - Dmytro Isaev
- Department of Cellular Membranology, Bogomoletz Institute of Physiology, Kyiv, Ukraine
| | - Alina Savotchenko
- Department of Cellular Membranology, Bogomoletz Institute of Physiology, Kyiv, Ukraine
| | - Ludmila Kasatkina
- Research Laboratory for Young Scientists, Palladin Institute of Biochemistry, Kyiv, Ukraine
| | - Serhii Savosko
- Department of Histology and Embryology, Bogomolets National Medical University, Kyiv, Ukraine
| | - Mykola Veliky
- Department of Biochemistry of Vitamins and Coenzymes, Palladin Institute of Biochemistry, Kyiv, Ukraine
| | - Ihor Shymanskyi
- Department of Biochemistry of Vitamins and Coenzymes, Palladin Institute of Biochemistry, Kyiv, Ukraine
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Wang Y, Jin B, Li B, Luo Y, Ma M, Chen Y, Liu H, Xie H, Yang T, Zhao X, Ding P. Cell-free protein synthesis of influenza virus hemagglutinin HA2-integrated virosomes for siRNA delivery. Int J Pharm 2022; 623:121890. [PMID: 35690307 DOI: 10.1016/j.ijpharm.2022.121890] [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: 02/21/2022] [Revised: 05/13/2022] [Accepted: 06/01/2022] [Indexed: 10/18/2022]
Abstract
It is well known that the difficulty of siRNA therapeutic application is the lack of safe and effective delivery vector. Virosome is a nano vesicle composed of lipid membrane and membrane protein. It retains fusion protein without virus genetic material, and therefore has the reduced immunogenicity compared with viral vector. Virosomes have the potential to deliver protein and nucleic acid drugs, but the traditional preparation method of virosomes is quite limited. In this study, we firstly proposed to synthesize influenza virus hemagglutinin HA2 virosomes by cell-free protein synthesis. In this study, liposomes provided the hydrophobic lipid bilayer environment for the formation of HA2 protein multimer, which inhibited the aggregation of hydrophobic HA2 and improved HA2 protein expression. Chitosan as a rigid core adsorbed siRNA and improved the encapsulation efficiency of siRNA. In conclusion, the cell-free protein synthesis was used to prepare HA2 virosomes, which paves the way for constructing a novel nano vector with high delivery efficiency and biosafety for the delivery of siRNA.
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Affiliation(s)
- Yichen Wang
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Bo Jin
- The First Hospital, China Medical University, Department of Medical Oncology, Shenyang 110001, China
| | - Bao Li
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Yucen Luo
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Mengrui Ma
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Yongfeng Chen
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Hui Liu
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Huichao Xie
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Tianzhi Yang
- Department of Basic Pharmaceutical Sciences, School of Pharmacy, Husson University, Bangor, ME 04401, USA
| | - Xiaoyun Zhao
- School of Life Science and Biopharmaceutics, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Pingtian Ding
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China; College of Pharmacy, Shenzhen Technology University, Shenzhen 518118, China.
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Kasatkina LA, Gumenyuk VP, Lisakovska OO, Trikash IO. Targeting hippocampal amyloidogenesis with SV2A protein modulator levetiracetam. Biochem Pharmacol 2022; 197:114927. [DOI: 10.1016/j.bcp.2022.114927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 01/12/2022] [Accepted: 01/13/2022] [Indexed: 11/24/2022]
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Meers PR. Membrane Organization Strategies in Vesicular Antibiotic Delivery. J Membr Biol 2022; 255:523-535. [PMID: 35018488 DOI: 10.1007/s00232-021-00210-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 12/06/2021] [Indexed: 01/08/2023]
Abstract
Small molecule antibiotics are often derived from microorganisms that thrive in competitive environments. Their importance as therapeutics for infectious disease in humans has been established over many years. It has now become clear that antibiotic-producing organisms use packaging and delivery in the form of vesicles in many cases. A similar strategy has evolved in recent decades in the pharmaceutical industry for formulation of antibiotic therapies. The top-down approach that has evolved over millions of years in various micro-organisms has generated complex, efficient delivery systems that we are just now beginning to understand. The bottom-up formulation approach involves simple, safe compositions, which are being continually enhanced by trying to add features of which the natural systems inform us. A comparison is made here of these paradigms. Despite the differences, there are a number of common features in the basic physical and biological requirements that must be satisfied. In this review, illustration and comparison of some of these requirements is given, demonstrating the ongoing challenges in this area of research.
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Affiliation(s)
- Paul R Meers
- Department of Plant Biology, School of Environmental and Biological Sciences, Rutgers University, New Brunswick, NJ, USA.
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6
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Guagliardo R, Herman L, Penders J, Zamborlin A, De Keersmaecker H, Van de Vyver T, Verstraeten S, Merckx P, Mingeot-Leclercq MP, Echaide M, Pérez-Gil J, Stevens MM, De Smedt SC, Raemdonck K. Surfactant Protein B Promotes Cytosolic SiRNA Delivery by Adopting a Virus-like Mechanism of Action. ACS NANO 2021; 15:8095-8109. [PMID: 33724778 DOI: 10.1021/acsnano.0c04489] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
RNA therapeutics are poised to revolutionize medicine. To unlock the full potential of RNA drugs, safe and efficient (nano)formulations to deliver them inside target cells are required. Endosomal sequestration of nanocarriers represents a major bottleneck in nucleic acid delivery. Gaining more detailed information on the intracellular behavior of RNA nanocarriers is crucial to rationally develop delivery systems with improved therapeutic efficiency. Surfactant protein B (SP-B) is a key component of pulmonary surfactant (PS), essential for mammalian breathing. In contrast to the general belief that PS should be regarded as a barrier for inhaled nanomedicines, we recently discovered the ability of SP-B to promote gene silencing by siRNA-loaded and lipid-coated nanogels. However, the mechanisms governing this process are poorly understood. The major objective of this work was to obtain mechanistic insights into the SP-B-mediated cellular delivery of siRNA. To this end, we combined siRNA knockdown experiments, confocal microscopy, and focused ion beam scanning electron microscopy imaging in an in vitro non-small-cell lung carcinoma model with lipid mixing assays on vesicles that mimic the composition of (intra)cellular membranes. Our work highlights a strong correlation between SP-B-mediated fusion with anionic endosomal membranes and cytosolic siRNA delivery, a mode of action resembling that of certain viruses and virus-derived cell-penetrating peptides. Building on these gained insights, we optimized the SP-B proteolipid composition, which dramatically improved delivery efficiency. Altogether, our work provides a mechanistic understanding of SP-B-induced perturbation of intracellular membranes, offering opportunities to fuel the rational design of SP-B-inspired RNA nanoformulations for inhalation therapy.
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Affiliation(s)
- Roberta Guagliardo
- Ghent Research Group on Nanomedicines, Laboratory of General Biochemistry and Physical Pharmacy, Faculty of Pharmaceutical Sciences, Ghent University, Ottergemsesteenweg 460, 9000 Ghent, Belgium
| | - Lore Herman
- Ghent Research Group on Nanomedicines, Laboratory of General Biochemistry and Physical Pharmacy, Faculty of Pharmaceutical Sciences, Ghent University, Ottergemsesteenweg 460, 9000 Ghent, Belgium
| | - Jelle Penders
- Department of Materials, Department of Bioengineering and Institute of Biomedical Engineering, Imperial College London, London SW7 2AZ, U.K
| | - Agata Zamborlin
- Ghent Research Group on Nanomedicines, Laboratory of General Biochemistry and Physical Pharmacy, Faculty of Pharmaceutical Sciences, Ghent University, Ottergemsesteenweg 460, 9000 Ghent, Belgium
| | - Herlinde De Keersmaecker
- Ghent Research Group on Nanomedicines, Laboratory of General Biochemistry and Physical Pharmacy, Faculty of Pharmaceutical Sciences, Ghent University, Ottergemsesteenweg 460, 9000 Ghent, Belgium
- Centre for Advanced Light Microscopy, Ghent University, 9000 Ghent, Belgium
| | - Thijs Van de Vyver
- Ghent Research Group on Nanomedicines, Laboratory of General Biochemistry and Physical Pharmacy, Faculty of Pharmaceutical Sciences, Ghent University, Ottergemsesteenweg 460, 9000 Ghent, Belgium
| | - Sandrine Verstraeten
- Université Catholique de Louvain, Louvain Drug Research Institute, Pharmacologie Cellulaire et Moléculaire, Avenue E. Mounier 73, UCL B1.73.05, 1200 Brussels, Belgium
| | - Pieterjan Merckx
- Ghent Research Group on Nanomedicines, Laboratory of General Biochemistry and Physical Pharmacy, Faculty of Pharmaceutical Sciences, Ghent University, Ottergemsesteenweg 460, 9000 Ghent, Belgium
| | - Marie-Paule Mingeot-Leclercq
- Université Catholique de Louvain, Louvain Drug Research Institute, Pharmacologie Cellulaire et Moléculaire, Avenue E. Mounier 73, UCL B1.73.05, 1200 Brussels, Belgium
| | - Mercedes Echaide
- Departamento de Bioquímica y Biología Molecular, Facultad de Biologia, and Research Institute Hospital 12 de Octubre, Universidad Complutense, José Antonio Novais 12, 28040 Madrid, Spain
| | - Jesús Pérez-Gil
- Departamento de Bioquímica y Biología Molecular, Facultad de Biologia, and Research Institute Hospital 12 de Octubre, Universidad Complutense, José Antonio Novais 12, 28040 Madrid, Spain
| | - Molly M Stevens
- Department of Materials, Department of Bioengineering and Institute of Biomedical Engineering, Imperial College London, London SW7 2AZ, U.K
| | - Stefaan C De Smedt
- Ghent Research Group on Nanomedicines, Laboratory of General Biochemistry and Physical Pharmacy, Faculty of Pharmaceutical Sciences, Ghent University, Ottergemsesteenweg 460, 9000 Ghent, Belgium
| | - Koen Raemdonck
- Ghent Research Group on Nanomedicines, Laboratory of General Biochemistry and Physical Pharmacy, Faculty of Pharmaceutical Sciences, Ghent University, Ottergemsesteenweg 460, 9000 Ghent, Belgium
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Trikash I, Kasatkina L, Lykhmus O, Skok M. Nicotinic acetylcholine receptors regulate clustering, fusion and acidification of the rat brain synaptic vesicles. Neurochem Int 2020; 138:104779. [PMID: 32474177 PMCID: PMC7256623 DOI: 10.1016/j.neuint.2020.104779] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 05/20/2020] [Accepted: 05/25/2020] [Indexed: 11/15/2022]
Abstract
The brain nicotinic acetylcholine receptors (nAChRs) expressed in pre-synaptic nerve terminals regulate neurotransmitter release. However, there is no evidence for the expression of nAChRs in synaptic vesicles, which deliver neurotransmitter to synaptic cleft. The aim of this paper was to investigate the presence of nAChRs in synaptic vesicles purified from the rat brain and to study their possible involvement in vesicles life cycle. According to dynamic light scattering analysis, the antibody against extracellular domain (1-208) of α7 nAChR subunit inhibited synaptic vesicles clustering. Sandwich ELISA with nAChR subunit-specific antibodies demonstrated the presence of α4β2, α7 and α7β2nAChR subtypes in synaptic vesicles and showed that α7 and β2 nAChR subunits are co-localized with synaptic vesicle glycoprotein 2A (SV2A). Pre-incubation with either α7-selective agonist PNU282987 or nicotine did not affect synaptic vesicles clustering but delayed their Ca2+-dependent fusion with the plasma membranes. In contrast, nicotine but not PNU282987 stimulated acidification of isolated synaptic vesicles, indicating that α4β2 but not α7-containing nAChRs are involved in regulation of proton influx and neurotransmitter refilling. Treatment of rats with levetiracetam, a specific modulator of SV2A, increased the content of α7 nAChRs in synaptic vesicles accompanied by increased clustering but decreased Ca2+-dependent fusion. These data for the first time demonstrate the presence of nAChRs in synaptic vesicles and suggest an active involvement of cholinergic regulation in neurotransmitter release. Synaptic vesicles may be an additional target of nicotine inhaled upon smoking and of α7-specific drugs widely discussed as anti-inflammatory and pro-cognitive tools.
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Affiliation(s)
- Irene Trikash
- Palladin Institute of Biochemistry, NAS of Ukraine, Kyiv, Ukraine
| | | | - Olena Lykhmus
- Palladin Institute of Biochemistry, NAS of Ukraine, Kyiv, Ukraine
| | - Maryna Skok
- Palladin Institute of Biochemistry, NAS of Ukraine, Kyiv, Ukraine.
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Where does the cargo go?: Solutions to provide experimental support for the "extracellular vesicle cargo transfer hypothesis". J Cell Commun Signal 2020; 14:135-146. [PMID: 32060725 DOI: 10.1007/s12079-020-00552-9] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Accepted: 02/10/2020] [Indexed: 12/16/2022] Open
Abstract
It is widely believed that extracellular vesicles (EVs) mediate intercellular communications by functioning as messengers. EVs contain various biomolecules, including nucleic acids and proteins, as cargo in the internal space. Thus, it has been postulated that this cargo can be transferred from donor cells to recipient cells, leading to phenotypic changes in the recipient cells. However, there is a lack of experimental evidence for the aforementioned hypothesis, that EVs function as messengers. This is presumably because of a lack of rigorous methodologies for EV research. Although cells usually incorporate nanoparticles (NPs) from the extracellular space via endocytosis, these NPs are processed through the endo/lysosomal system and do not escape to the cytoplasm unless they disrupt or fuse with the endo/lysosomal membrane. Whether EVs actually are capable of escaping endo/lysosomes is still debatable. In contrast, viruses have evolved to efficiently deliver their cargo (viral proteins and genetic material) into the cytoplasm of host (recipient) cells by circumventing endo/lysosomal degradation. Thus, it may be helpful to compare EVs to viruses in terms of cargo delivery. The present technological issues that hinder obtaining support for the "EV cargo transfer hypothesis" are summarized and potential solutions for EV research are proposed.
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Kasatkina LA, Tarasenko AS, Krupko OO, Kuchmerovska TM, Lisakovska OO, Trikash IO. Vitamin D deficiency induces the excitation/inhibition brain imbalance and the proinflammatory shift. Int J Biochem Cell Biol 2019; 119:105665. [PMID: 31821883 DOI: 10.1016/j.biocel.2019.105665] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Revised: 11/25/2019] [Accepted: 12/05/2019] [Indexed: 12/16/2022]
Abstract
Vitamin D3 is among the major neurosteroids whose role in developing and adult brain is intensively studied now. Its active form 1,25(OH)2D3 regulates the expression and functioning of a range of brain-specific proteins, which orchestrate the neurotransmitter turnover, neurogenesis and neuroplasticity. Despite numerous studies of the vitamin D role in normal and pathological brain function, there is little evidence on the mechanisms of alterations in excitatory and inhibitory neurotransmission under vitamin D deficiency (VDD). Using the animal model we characterized the dysfunction of excitatory and inhibitory neurotransmission under alimentary VDD. The shift between unstimulated and evoked GABA release under VDD was largely reversed after treatment of VDD, whereas the impairments in glutamatergic system were only partially recovered after 1-month vitamin D3 supplementation. The increase of the external glutamate level and unstimulated GABA release in brain nerve terminals was associated with intensified ROS production and higher [Ca2+]i in presynapse. The negative allosteric modulation of presynaptic mGlu7 receptors significantly enhanced exocytotic GABA release, which was decreased under VDD, thereby suggesting the neuroprotective effect of such modulation of inhibitory neurotransmission. Synaptic plasma membranes and cytosolic proteins contribute to the decreased stimulated release of neurotransmitter, by being the crucial components, whose functional state is impaired under VDD. The critical changes with synaptic vesicles occurred at the docking step of the process, whereas malfunctioning of synaptic cytosolic proteins impacted the fusion event foremost. The decreased amplitude of exocytosis was inherent for non-excitable cells as well, as evidenced by lower platelet degranulation. Our data suggest the presynaptic dysfunction and proinflammatory shift as the early events in the pathogenesis of VDD-associated disorders and provide evidences for the neuroprotective role of vitamin D3.
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Affiliation(s)
- Ludmila A Kasatkina
- The Department of Neurochemistry, Palladin Institute of Biochemistry, NAS of Ukraine, 9, Leontovycha Street, Kyiv, 01030, Ukraine
| | - Alla S Tarasenko
- The Department of Neurochemistry, Palladin Institute of Biochemistry, NAS of Ukraine, 9, Leontovycha Street, Kyiv, 01030, Ukraine
| | - Olga O Krupko
- The Department of Neurochemistry, Palladin Institute of Biochemistry, NAS of Ukraine, 9, Leontovycha Street, Kyiv, 01030, Ukraine
| | - Tamara M Kuchmerovska
- The Department of Biochemistry of Vitamins and Coenzymes, Palladin Institute of Biochemistry, NAS of Ukraine, 9, Leontovycha Street, Kyiv, 01030 Ukraine
| | - Olha O Lisakovska
- The Department of Biochemistry of Vitamins and Coenzymes, Palladin Institute of Biochemistry, NAS of Ukraine, 9, Leontovycha Street, Kyiv, 01030 Ukraine
| | - Irene O Trikash
- The Department of Neurochemistry, Palladin Institute of Biochemistry, NAS of Ukraine, 9, Leontovycha Street, Kyiv, 01030, Ukraine.
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Gi Protein Modulation of the Potassium Channel TASK-2 Mediates Vesicle Osmotic Swelling to Facilitate the Fusion of Aquaporin-2 Water Channel Containing Vesicles. Cells 2018; 7:cells7120276. [PMID: 30572630 PMCID: PMC6315517 DOI: 10.3390/cells7120276] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 12/13/2018] [Accepted: 12/13/2018] [Indexed: 11/17/2022] Open
Abstract
Vesicle fusion is a fundamental cell biological process similar from yeasts to humans. For secretory vesicles, swelling is considered a step required for the expulsion of intravesicular content. Here this concept is revisited providing evidence that it may instead represent a general mechanism. We report the first example that non-secretory vesicles, committed to insert the Aquaporin-2 water channel into the plasma membrane, swell and this phenomenon is required for fusion to plasma membrane. Through an interdisciplinary approach, using atomic force microscope (AFM), a fluorescence-based assay of vesicle volume changes and NMR spectroscopy to measure water self-diffusion coefficient, we provide evidence that Gi protein modulation of potassium channel TASK-2 localized in AQP2 vesicles, is required for vesicle swelling. Estimated intravesicular K⁺ concentration in AQP2 vesicles, as measured by inductively coupled plasma mass spectrometry, was 5.3 mM, demonstrating the existence of an inwardly K⁺ chemical gradient likely generating an osmotic gradient causing vesicle swelling upon TASK-2 gating. Of note, abrogation of K⁺ gradient significantly impaired fusion between vesicles and plasma membrane. We conclude that vesicle swelling is a potentially important prerequisite for vesicle fusion to the plasma membrane and may be required also for other non-secretory vesicles, depicting a general mechanism for vesicle fusion.
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Kasatkina LA, Gumenyuk VP, Sturm EM, Heinemann A, Bernas T, Trikash IO. Modulation of neurosecretion and approaches for its multistep analysis. Biochim Biophys Acta Gen Subj 2018; 1862:2701-2713. [PMID: 30251660 DOI: 10.1016/j.bbagen.2018.08.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Revised: 08/01/2018] [Accepted: 08/02/2018] [Indexed: 12/19/2022]
Abstract
BACKGROUND Neurosecretion is the multistep process occurring in separate spatial and temporal cellular boundaries which complicates its comprehensive analysis. Most of the research are focused on one distinct stage of synaptic vesicle recycling. Here, we describe approaches for complex analysis of synaptic vesicle (SV) endocytosis and separate steps of exocytosis at the level of presynaptic bouton and highly purified SVs. METHODS Proposed fluorescence-based strategies and analysis of neurotransmitter transport provided the advantages in studies of exocytosis steps. We evaluated SV docking/tethering, their Ca2+-dependent fusion and release of neurotransmitters gamma-aminobutyric acid (GABA) and glutamate in two animal models. RESULTS Approaches enabled us to study: 1) endocytosis/Ca2+-dependent release of fluorescent carbon nanodots (CNDs) during stimulation of nerve terminals; 2) the action of levetiracetam, modulator of SV glycoprotein SV2, on fusion competence of SVs and stimulated release of GABA and glutamate; 3) impairments of several steps of neurosecretion under vitamin D3 deficiency. CONCLUSIONS Our algorithm enabled us to verify the method validity for multidimensional analysis of SV turnover. By increasing SV docking and the size of readily releasable pool (RRP), levetiracetam is able to selectively enhance the stimulated GABA secretion in hippocampal neurons. Findings suggest that SV2 regulates RRP through impact on the number of docked/primed SVs. GENERAL SIGNIFICANCE Methodology can be widely applied to study the stimulated neurosecretion in presynapse, regulation of SV docking, their Ca2+-dependent fusion with target membranes, quantitative analysis of expression of neuron-specific proteins, as well as for testing the efficiency of pre-selected designed neuroactive substances.
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Affiliation(s)
- Ludmila A Kasatkina
- The Department of Neurochemistry, Palladin Institute of Biochemistry, NAS of Ukraine, 9 Leontovycha Street, 01030 Kyiv, Ukraine
| | - Vitaliy P Gumenyuk
- The Department of Neurochemistry, Palladin Institute of Biochemistry, NAS of Ukraine, 9 Leontovycha Street, 01030 Kyiv, Ukraine
| | - Eva M Sturm
- Otto-Loewi Research Center, Pharmacology Section, Medical University of Graz, Universitätsplatz 4, 8010 Graz, Austria
| | - Akos Heinemann
- Otto-Loewi Research Center, Pharmacology Section, Medical University of Graz, Universitätsplatz 4, 8010 Graz, Austria
| | - Tytus Bernas
- Nencki Institute of Experimental Biology, Laboratory of Imaging Tissue Structure and Function, 3 Pasteur Street, 02-093 Warsaw, Poland
| | - Irene O Trikash
- The Department of Neurochemistry, Palladin Institute of Biochemistry, NAS of Ukraine, 9 Leontovycha Street, 01030 Kyiv, Ukraine.
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12
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Wang Z, Ma Y, Khalil H, Wang R, Lu T, Zhao W, Zhang Y, Chen J, Chen T. Fusion between fluid liposomes and intact bacteria: study of driving parameters and in vitro bactericidal efficacy. Int J Nanomedicine 2016; 11:4025-36. [PMID: 27574430 PMCID: PMC4993285 DOI: 10.2147/ijn.s55807] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Background Pseudomonas aeruginosa represents a good model of antibiotic resistance. These organisms have an outer membrane with a low level of permeability to drugs that is often combined with multidrug efflux pumps, enzymatic inactivation of the drug, or alteration of its molecular target. The acute and growing problem of antibiotic resistance of bacteria to conventional antibiotics made it imperative to develop new liposome formulations for antibiotics, and investigate the fusion between liposome and bacterium. Methods In this study, the factors involved in fluid liposome interaction with bacteria have been investigated. We also demonstrated a mechanism of fusion between liposomes (1,2-dipa lmitoyl-sn-glycero-3-phosphocholine [DPPC]/dimyristoylphosphatidylglycerol [DMPG] 9:1, mol/mol) in a fluid state, and intact bacterial cells, by lipid mixing assay. Results The observed fusion process is shown to be mainly dependent on several key factors. Perturbation of liposome fluidity by addition of cholesterol dramatically decreased the degree of fusion with P. aeruginosa from 44% to 5%. It was observed that fusion between fluid liposomes and bacteria and also the bactericidal activities were strongly dependent upon the properties of the bacteria themselves. The level of fusion detected when fluid liposomes were mixed with Escherichia coli (66%) or P. aeruginosa (44%) seems to be correlated to their outer membrane phosphatidylethanolamine (PE) phospholipids composition (91% and 71%, respectively). Divalent cations increased the degree of fusion in the sequence Fe2+ > Mg2+ > Ca2+ > Ba2+ whereas temperatures lower than the phase transition temperature of DPPC/DMPG (9:1) vesicles decreased their fusion capacity. Acidic as well as basic pHs conferred higher degrees of fusion (54% and 45%, respectively) when compared to neutral pH (35%). Conclusion Based on the results of this study, a possible mechanism involving cationic bridging between bacterial negatively charged lipopolysaccharide and fluid liposomes DMPG phospholipids was outlined. Furthermore, the fluid liposomal-encapsulated tobramycin was prepared, and the in vitro bactericidal effects were also investigated.
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Affiliation(s)
- Zhao Wang
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi; Shaanxi Liposome Research Center, Xi'an, Shaanxi
| | - Yufan Ma
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi; Xi'an Libang Pharmaceuticals Co, Ltd, Xi'an; School of Medicine, Xi'an Jiaotong University, Xi'an, People's Republic of China
| | - Hayssam Khalil
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi
| | - Rutao Wang
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi; Shaanxi Liposome Research Center, Xi'an, Shaanxi; Xi'an Libang Pharmaceuticals Co, Ltd, Xi'an
| | - Tingli Lu
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi
| | - Wen Zhao
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi
| | - Yang Zhang
- Xi'an Libang Pharmaceuticals Co, Ltd, Xi'an
| | - Jamin Chen
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi; Shaanxi Liposome Research Center, Xi'an, Shaanxi
| | - Tao Chen
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi; Shaanxi Liposome Research Center, Xi'an, Shaanxi; Xi'an Libang Pharmaceuticals Co, Ltd, Xi'an
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Trikash I, Gumenyuk V, Kuchmerovska T. Diabetes-Induced Impairments of the Exocytosis Process and the Effect of Gabapentin: The Link with Cholesterol Level in Neuronal Plasma Membranes. Neurochem Res 2015; 40:723-32. [DOI: 10.1007/s11064-015-1520-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2014] [Revised: 09/24/2014] [Accepted: 01/13/2015] [Indexed: 10/24/2022]
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14
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Effects of Levetiracetam on Aggregation and Fusion of Membranes of Synaptic Vesicles in a Cell-Free Exocytosis Model. NEUROPHYSIOLOGY+ 2014. [DOI: 10.1007/s11062-014-9416-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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15
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Krisanova N, Sivko R, Kasatkina L, Borisova T. Neuroprotection by lowering cholesterol: A decrease in membrane cholesterol content reduces transporter-mediated glutamate release from brain nerve terminals. Biochim Biophys Acta Mol Basis Dis 2012; 1822:1553-61. [DOI: 10.1016/j.bbadis.2012.06.005] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2012] [Revised: 05/22/2012] [Accepted: 06/11/2012] [Indexed: 01/05/2023]
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16
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Lorin A, Noël M, Provencher MÈ, Turcotte V, Masson C, Cardinal S, Lagüe P, Voyer N, Auger M. Revisiting peptide amphiphilicity for membrane pore formation. Biochemistry 2011; 50:9409-20. [PMID: 21942823 DOI: 10.1021/bi201335t] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
It has previously been shown that an amphipathic de novo designed peptide made of 10 leucines and four phenylalanines substituted with crown ethers induces vesicle leakage without selectivity. To gain selectivity against negatively charged dimyristoylphosphatidylglycerol (DMPG) bilayers, one or two leucines of the peptide were substituted with positively charged residues at each position. All peptides induce significant calcein leakage of DMPG vesicles. However, some peptides do not induce significant leakage of zwitterionic dimyristoylphosphatidylcholine vesicles and are thus active against only bacterial model membranes. The intravesicular leakage is induced by pore formation instead of membrane micellization. Nonselective peptides are mostly helical, while selective peptides mainly adopt an intermolecular β-sheet structure. This study therefore demonstrates that the position of the lysine residues significantly influences the secondary structure and bilayer selectivity of an amphipathic 14-mer peptide, with β-sheet peptides being more selective than helical peptides.
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Affiliation(s)
- Aurélien Lorin
- Département de chimie, Regroupement québécois de recherche sur la fonction, la structure et l'ingénierie des protéines, Centre de recherche sur les matériaux avancés, Université Laval, Québec, Québec, Canada G1V 0A6
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