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Korszun-Karbowniczak J, Krysiak ZJ, Saluk J, Niemcewicz M, Zdanowski R. The Progress in Molecular Transport and Therapeutic Development in Human Blood-Brain Barrier Models in Neurological Disorders. Cell Mol Neurobiol 2024; 44:34. [PMID: 38627312 PMCID: PMC11021242 DOI: 10.1007/s10571-024-01473-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Accepted: 03/18/2024] [Indexed: 04/19/2024]
Abstract
The blood-brain barrier (BBB) is responsible for maintaining homeostasis within the central nervous system (CNS). Depending on its permeability, certain substances can penetrate the brain, while others are restricted in their passage. Therefore, the knowledge about BBB structure and function is essential for understanding physiological and pathological brain processes. Consequently, the functional models can serve as a key to help reveal this unknown. There are many in vitro models available to study molecular mechanisms that occur in the barrier. Brain endothelial cells grown in culture are commonly used to modeling the BBB. Current BBB platforms include: monolayer platforms, transwell, matrigel, spheroidal, and tissue-on-chip models. In this paper, the BBB structure, molecular characteristic, as well as its dysfunctions as a consequence of aging, neurodegeneration, or under hypoxia and neurotoxic conditions are presented. Furthermore, the current modelling strategies that can be used to study BBB for the purpose of further drugs development that may reach CNS are also described.
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Affiliation(s)
- Joanna Korszun-Karbowniczak
- Laboratory of Molecular Oncology and Innovative Therapies, Military Institute of Medicine National Research Institute, 128 Szaserów Street, 04-141, Warsaw, Poland
- BioMedChem Doctoral School of the University of Lodz and Lodz Institutes of the Polish Academy of Sciences, 21/23 Matejki Street, 90-237, Lodz, Poland
| | - Zuzanna Joanna Krysiak
- Laboratory of Molecular Oncology and Innovative Therapies, Military Institute of Medicine National Research Institute, 128 Szaserów Street, 04-141, Warsaw, Poland.
| | - Joanna Saluk
- Department of General Biochemistry, Faculty of Biology and Environmental Protection, Institute of Biochemistry, University of Lodz, 68 Narutowicza Street, 90-136, Lodz, Poland
| | - Marcin Niemcewicz
- Biohazard Prevention Centre, Faculty of Biology and Environmental Protection, University of Lodz, 68 Narutowicza Street, 90-136, Lodz, Poland
| | - Robert Zdanowski
- Laboratory of Molecular Oncology and Innovative Therapies, Military Institute of Medicine National Research Institute, 128 Szaserów Street, 04-141, Warsaw, Poland
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Essig YJ, Leszczyszyn OI, Almutairi N, Harrison-Smith A, Blease A, Zeitoun-Ghandour S, Webb SM, Blindauer CA, Stürzenbaum SR. Juggling cadmium detoxification and zinc homeostasis: A division of labour between the two C. elegans metallothioneins. CHEMOSPHERE 2024; 350:141021. [PMID: 38151062 PMCID: PMC11134313 DOI: 10.1016/j.chemosphere.2023.141021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 12/18/2023] [Accepted: 12/20/2023] [Indexed: 12/29/2023]
Abstract
The chemical properties of toxic cadmium and essential zinc are very similar, and organisms require intricate mechanisms that drive selective handling of metals. Previously regarded as unspecific "metal sponges", metallothioneins (MTLs) are emerging as metal selectivity filters. By utilizing C. elegans mtl-1 and mtl-2 knockout strains, metal accumulation in single worms, single copy fluorescent-tagged transgenes, isoform specific qPCR and lifespan studies it was possible to demonstrate that the handling of cadmium and zinc by the two C. elegans metallothioneins differs fundamentally: the MTL-2 protein can handle both zinc and cadmium, but when it becomes unavailable, either via a knockout or by elevated cadmium exposure, MTL-1 takes over zinc handling, leaving MTL-2 to sequester cadmium. This division of labour is reflected in the folding behaviour of the proteins: MTL-1 folded well in presence of zinc but not cadmium, the reverse was the case for MTL-2. These differences are in part mediated by a zinc-specific mononuclear His3Cys site in the C-terminal insertion of MTL-1; its removal affected the entire C-terminal domain and may shift its metal selectivity towards zinc. Overall, we uncover how metallothionein isoform-specific responses and protein properties allow C. elegans to differentiate between toxic cadmium and essential zinc.
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Affiliation(s)
- Yona J Essig
- Analytical, Environmental and Forensic Sciences Department, King's College London, London, UK
| | - Oksana I Leszczyszyn
- Analytical, Environmental and Forensic Sciences Department, King's College London, London, UK
| | - Norah Almutairi
- Analytical, Environmental and Forensic Sciences Department, King's College London, London, UK
| | | | - Alix Blease
- Analytical, Environmental and Forensic Sciences Department, King's College London, London, UK
| | | | - Sam M Webb
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA, 94025, USA
| | | | - Stephen R Stürzenbaum
- Analytical, Environmental and Forensic Sciences Department, King's College London, London, UK.
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Li CX, Talukder M, Xu YR, Zhu SY, Zhao YX, Li JL. Cadmium aggravates the blood-brain barrier disruption via inhibition of the Wnt7A/β-catenin signaling axis. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 324:121400. [PMID: 36878275 DOI: 10.1016/j.envpol.2023.121400] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 03/01/2023] [Accepted: 03/03/2023] [Indexed: 06/18/2023]
Abstract
Cadmium (Cd) is a non-biodegradable widespread environmental pollutant, which can cross the blood-brain barrier (BBB) and cause cerebral toxicity. However, the effect of Cd on the BBB is still unclear. In this study, a total of 80 (1-day-old) Hy-Line white variety chicks (20 chickens/group) were selected and randomly divided into four (4) groups: the control group (Con group) (fed with a basic diet, n = 20), the Cd 35 group (basic diet with 35 mg/kg CdCl2, n = 20), the Cd 70 group (basic diet with 70 mg/kg CdCl2, n = 20) and the Cd 140 group (basic diet with 140 mg/kg CdCl2, n = 20), and fed for 90 days. The pathological changes, factors associated with the BBB, oxidation level and the levels of Wingless-type MMTV integration site family, member 7 A (Wnt7A)/Wnt receptor Frizzled 4 (FZD4)/β-catenin signaling axis-related proteins in brain tissue were detected. Cd exposure induced capillary damage and neuronal swelling, degeneration and loss of neurons. Gene Set Enrichment Analysis (GSEA) showed the weakened Wnt/β-catenin signaling axis. The protein expression of the Wnt7A, FZD4, and β-catenin was decreased by Cd expusure. Inflammation generation and BBB dysfunction were induced by Cd, as manifested by impaired tight junctions (TJs) and adherens junctions (AJs) formation. These findings underscore that Cd induced BBB dysfunction via disturbing Wnt7A/FZD4/β-catenin signaling axis.
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Affiliation(s)
- Chen-Xi Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China
| | - Milton Talukder
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China; Department of Physiology and Pharmacology, Faculty of Animal Science and Veterinary Medicine, Patuakhali Science and Technology University, Barishal, 8210, Bangladesh
| | - Ya-Ru Xu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China
| | - Shi-Yong Zhu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China
| | - Ying-Xin Zhao
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China
| | - Jin-Long Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China; Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Northeast Agricultural University, Harbin, 150030, PR China; Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Northeast Agricultural University, Harbin, 150030, PR China.
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Zhang C, Zheng J, Chen W, Yang W, Tan X, Fan X, Shen G, Qu L, Chen Z, Shi C. Mitochondrial-targeting fluorescent small molecule IR-780 alleviates radiation-induced brain injury. Brain Res 2023; 1805:148285. [PMID: 36801209 DOI: 10.1016/j.brainres.2023.148285] [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: 09/23/2022] [Revised: 01/12/2023] [Accepted: 02/13/2023] [Indexed: 02/17/2023]
Abstract
Radiation-induced brain injury (RIBI) is a common complication of radiation therapy for brain tumors. Vascular damage is one of the key factors closely related to the severity of the RIBI. However, effective vascular target treatment strategies are lacking. Previously, we have identified a fluorescent small molecule dye, IR-780, which shows the properties of injury tissue targeting and provided protection against various injuries by modulating oxidative stress. This study aims to validate the therapeutic effect of IR-780 on RIBI. The effectiveness of IR-780 against RIBI has been comprehensively evaluated through techniques such as behavior, immunofluorescence staining, quantitative real-time polymerase chain reaction, Evans Blue leakage experiments, electron microscopy, and flow cytometry. Results show that IR-780 improves cognitive dysfunction, reduces neuroinflammation, restores the expression of tight junction proteins in the blood-brain barrier (BBB), and promotes the recovery of BBB function after whole brain irradiation. IR-780 also accumulates in injured cerebral microvascular endothelial cells, and its subcellular location is in the mitochondria. More importantly, IR-780 can reduce the levels of cellular reactive oxygen species and apoptosis. Moreover, IR-780 has no significant toxic side effects. IR-780 alleviates RIBI by protecting vascular endothelial cells from oxidative stress, reducing neuroinflammation, and restoring BBB function, suggesting IR-780 as a promising treatment candidate for RIBI therapy.
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Affiliation(s)
- Can Zhang
- Institute of Rocket Force Medicine, State Key Laboratory of Trauma, Burns and Combined Injury, Army Medical University, 400038 Chongqing, China
| | - Jiancheng Zheng
- Institute of Rocket Force Medicine, State Key Laboratory of Trauma, Burns and Combined Injury, Army Medical University, 400038 Chongqing, China
| | - Wanchao Chen
- Institute of Rocket Force Medicine, State Key Laboratory of Trauma, Burns and Combined Injury, Army Medical University, 400038 Chongqing, China
| | - Wei Yang
- Institute of Rocket Force Medicine, State Key Laboratory of Trauma, Burns and Combined Injury, Army Medical University, 400038 Chongqing, China; Department of Oncology, The Affiliated Hospital of Southwest Medical University, 646000 Luzhou, China
| | - Xu Tan
- Institute of Rocket Force Medicine, State Key Laboratory of Trauma, Burns and Combined Injury, Army Medical University, 400038 Chongqing, China
| | - Xiaotang Fan
- Department of Military Cognitive Psychology, School of Psychology, Army Medical University, 400038 Chongqing, China
| | - Gufang Shen
- Institute of Rocket Force Medicine, State Key Laboratory of Trauma, Burns and Combined Injury, Army Medical University, 400038 Chongqing, China
| | - Langfan Qu
- Institute of Rocket Force Medicine, State Key Laboratory of Trauma, Burns and Combined Injury, Army Medical University, 400038 Chongqing, China
| | - Zelin Chen
- Institute of Rocket Force Medicine, State Key Laboratory of Trauma, Burns and Combined Injury, Army Medical University, 400038 Chongqing, China.
| | - Chunmeng Shi
- Institute of Rocket Force Medicine, State Key Laboratory of Trauma, Burns and Combined Injury, Army Medical University, 400038 Chongqing, China.
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Petrova E, Pashkunova-Martic I, Schaier M, Gluhcheva Y, Pavlova E, Helbich TH, Keppler B, Ivanova J. Effects of subacute cadmium exposure and subsequent deferiprone treatment on cadmium accumulation and on the homeostasis of essential elements in the mouse brain. J Trace Elem Med Biol 2022; 74:127062. [PMID: 35985070 DOI: 10.1016/j.jtemb.2022.127062] [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: 05/10/2022] [Revised: 07/30/2022] [Accepted: 08/10/2022] [Indexed: 12/31/2022]
Abstract
INTRODUCTION Cadmium (Cd) is а hazardous multi-organ toxin. In this study, we provide the first results about the effect of oral administration of deferiprone (DFP) on Cd accumulation and on the homeostasis of essential elements in the brain of Cd-exposed mice. METHODS Adult Institute of Cancer Research (ICR) male mice were randomized into four experimental groups: untreated controls - administered distilled water for 28 days; Cd-exposed group - exposed to 18 mg/kg body weight (b.w.) Cd(II) acetate for 14 days followed by the administration of distilled water for two weeks; Cd + DFP (low dose) - Cd-intoxicated mice subsequently treated with 19 mg/kg b.w. DFP for two weeks; and Cd + DFP (high dose) - Cd-exposed mice administered high-dose DFP (135 mg/kg b.w.) for 14 days. Brains were subjected to inductively coupled plasma-mass spectrometry (ICP-MS) and histological analysis. RESULTS The results revealed that exposure of mice to Cd for 14 days significantly increased Cd concentration and significantly decreased magnesium (Mg), phosphorus (P), and zinc (Zn) contents in the brain compared to untreated controls. This effect was accompanied by necrotic-degenerative changes in both the cerebrum and cerebellum. Oral administration of low-dose DFP to Cd-exposed mice decreased the concentration of the toxic metal in the brain by 16.37% and restored the concentration of the essential elements to normal control values. Histological analysis revealed substantially improved cerebral and cerebellar histoarchitectures. In contrast, oral administration of high-dose DFP increased Cd content and significantly decreased selenium (Se) concentration in the brain. Necrotic neurons and Purkinje cells were still observed in the cerebral and cerebellar cortices. CONCLUSION The results demonstrated that oral administration of DFP at low doses has a better therapeutic potential for the treatment of Cd-induced brain damage compared to high doses.
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Affiliation(s)
- Emilia Petrova
- Institute of Experimental Morphology, Pathology and Anthropology with Museum, Bulgarian Academy of Sciences, Acad. Georgi Bonchev Street, Bl. 25, 1113 Sofia, Bulgaria.
| | - Irena Pashkunova-Martic
- Department of Biomedical Imaging and Image-guided Therapy, Division of Molecular and Structural Preclinical Imaging, Medical University of Vienna and General Hospital of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria.
| | - Martin Schaier
- Institute of Analytical Chemistry, University of Vienna, Waehringer Strasse 38, 1090 Vienna, Austria; Vienna Doctoral School in Chemistry (DoSChem), University of Vienna, Währinger Strasse 42, 1090 Vienna, Austria.
| | - Yordanka Gluhcheva
- Institute of Experimental Morphology, Pathology and Anthropology with Museum, Bulgarian Academy of Sciences, Acad. Georgi Bonchev Street, Bl. 25, 1113 Sofia, Bulgaria.
| | - Ekaterina Pavlova
- Institute of Experimental Morphology, Pathology and Anthropology with Museum, Bulgarian Academy of Sciences, Acad. Georgi Bonchev Street, Bl. 25, 1113 Sofia, Bulgaria.
| | - Thomas H Helbich
- Department of Biomedical Imaging and Image-guided Therapy, Division of Molecular and Structural Preclinical Imaging, Medical University of Vienna and General Hospital of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria.
| | - Bernhard Keppler
- Institute of Inorganic Chemistry, University of Vienna, Waehringer Strasse 42, 1090 Vienna, Austria.
| | - Juliana Ivanova
- Faculty of Medicine, Sofia University "St. Kliment Ohridski", Kozjak Street 1, 1407 Sofia, Bulgaria.
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