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Oz S, Saar G, Olszakier S, Heinrich R, Kompanets MO, Berlin S. Revealing the MRI-Contrast in Optically Cleared Brains. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2400316. [PMID: 38647385 DOI: 10.1002/advs.202400316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 04/10/2024] [Indexed: 04/25/2024]
Abstract
The current consensus holds that optically-cleared specimens are unsuitable for Magnetic Resonance Imaging (MRI); exhibiting absence of contrast. Prior studies combined MRI with tissue-clearing techniques relying on the latter's ability to eliminate lipids, thereby fostering the assumption that lipids constitute the primary source of ex vivo MRI-contrast. Nevertheless, these findings contradict an extensive body of literature that underscores the contribution of other features to contrast. Furthermore, it remains unknown whether non-delipidating clearing methods can produce MRI-compatible specimens or whether MRI-contrast can be re-established. These limitations hinder the development of multimodal MRI-light-microscopy (LM) imaging approaches. This study assesses the relation between MRI-contrast, and delipidation in optically-cleared whole brains following different tissue-clearing approaches. It is demonstrated that uDISCO and ECi-brains are MRI-compatible upon tissue rehydration, despite both methods' substantial delipidating-nature. It is also demonstrated that, whereas Scale-clearing preserves most lipids, Scale-cleared brain lack MRI-contrast. Furthermore, MRI-contrast is restored to lipid-free CLARITY-brains without introducing lipids. Our results thereby dissociate between the essentiality of lipids to MRI-contrast. A tight association is found between tissue expansion, hyperhydration and loss of MRI-contrast. These findings then enabled us to develop a multimodal MRI-LM-imaging approach, opening new avenues to bridge between the micro- and mesoscale for biomedical research and clinical applications.
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Affiliation(s)
- Shimrit Oz
- Department of Neuroscience, Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, 3525433, Israel
| | - Galit Saar
- Biomedical Core Facility, Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, 3525433, Israel
| | - Shunit Olszakier
- Department of Neuroscience, Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, 3525433, Israel
| | - Ronit Heinrich
- Department of Neuroscience, Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, 3525433, Israel
| | - Mykhail O Kompanets
- L.M. Litvinenko Institute of Physico-Organic Chemistry and Coal Chemistry, National Academy of Sciences of Ukraine, Kyiv, Ukraine
| | - Shai Berlin
- Department of Neuroscience, Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, 3525433, Israel
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Li Z, Kovshova T, Malinovskaya J, Knoll J, Shanehsazzadeh S, Osipova N, Chernysheva A, Melnikov P, Gelperina S, Wacker MG. Blood-Nanoparticle Interactions Create a Brain Delivery Superhighway for Doxorubicin. Int J Nanomedicine 2024; 19:2039-2056. [PMID: 38476274 PMCID: PMC10928925 DOI: 10.2147/ijn.s440598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Accepted: 01/09/2024] [Indexed: 03/14/2024] Open
Abstract
Purpose This study investigated the brain targeting mechanism of doxorubicin-loaded polybutyl cyanoacrylate (PBCA) nanoparticles, particularly their interactions with the blood-brain barrier (BBB). The BBB protects the brain from drugs in the bloodstream and represents a crucial obstacle in the treatment of brain cancer. Methods An advanced computer model analyzed the brain delivery of two distinct formulations, Doxil® and surfactant-coated PBCA nanoparticles. Computational learning was combined with in vitro release and cell interaction studies to comprehend the underlying brain delivery pathways. Results Our analysis yielded a surprising discovery regarding the brain delivery mechanism of PBCA nanoparticles. While Doxil® exhibited the expected behavior, accumulating in the brain through extravasation in tumor tissue, PBCA nanoparticles employed a unique and previously uncharacterized mechanism. They underwent cell hitchhiking, resulting in a remarkable more than 1000-fold increase in brain permeation rate compared to Doxil® (2.59 × 10-4 vs 0.32 h-1). Conclusion The nonspecific binding to blood cells facilitated and intensified interactions of surfactant-coated PBCA nanoparticles with the vascular endothelium, leading to enhanced transcytosis. Consequently, the significant increase in circulation time in the bloodstream, coupled with improved receptor interactions, contributes to this remarkable uptake of doxorubicin into the brain.
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Affiliation(s)
- Zhuoxuan Li
- National University of Singapore, Department of Pharmacy and Pharmaceutical Sciences, Faculty of Science, Singapore
| | - Tatyana Kovshova
- Dmitry Mendeleev University of Chemical Technology of Russia, Moscow, Russia
| | - Julia Malinovskaya
- Dmitry Mendeleev University of Chemical Technology of Russia, Moscow, Russia
| | - Julian Knoll
- National University of Singapore, Department of Pharmacy and Pharmaceutical Sciences, Faculty of Science, Singapore
| | - Saeed Shanehsazzadeh
- National University of Singapore, Department of Pharmacy and Pharmaceutical Sciences, Faculty of Science, Singapore
| | - Nadezhda Osipova
- Dmitry Mendeleev University of Chemical Technology of Russia, Moscow, Russia
| | - Anastasia Chernysheva
- V. Serbsky Federal Medical Research Centre of Psychiatry and Narcology of the Ministry of Health of the Russian Federation, Moscow, Russia
| | - Pavel Melnikov
- Dmitry Mendeleev University of Chemical Technology of Russia, Moscow, Russia
| | - Svetlana Gelperina
- Dmitry Mendeleev University of Chemical Technology of Russia, Moscow, Russia
| | - Matthias G Wacker
- National University of Singapore, Department of Pharmacy and Pharmaceutical Sciences, Faculty of Science, Singapore
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Thankarajan E, Oz S, Saady A, Kulbitski K, Kompanets MO, Eisen MS, Berlin S. SNAP-Tag-Targeted MRI-Fluorescent Multimodal Probes. Chembiochem 2023; 24:e202300172. [PMID: 37092744 DOI: 10.1002/cbic.202300172] [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: 03/02/2023] [Revised: 04/02/2023] [Accepted: 04/24/2023] [Indexed: 04/25/2023]
Abstract
Magnetic resonance imaging (MRI) is a powerful imaging modality, widely employed in research and clinical settings. However, MRI images suffer from low signals and a lack of target specificity. We aimed to develop a multimodal imaging probe to detect targeted cells by MRI and fluorescence microscopy. We synthesized a trifunctional imaging probe consisting of a SNAP-tag substrate for irreversible and specific labelling of cells, cyanine dyes for bright fluorescence, and a chelated GdIII molecule for enhancing MRI contrast. Our probes exhibit specific and efficient labelling of genetically defined cells (expressing SNAP-tag at their membrane), bright fluorescence and MRI signal. Our synthetic approach provides a versatile platform for the production of multimodal imaging probes, particularly for light microscopy and MRI.
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Affiliation(s)
- Ebaston Thankarajan
- Department of Neuroscience, Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa, 3525422, Israel
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology, Haifa, 3200003, Israel
| | - Shimrit Oz
- Department of Neuroscience, Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa, 3525422, Israel
| | - Abed Saady
- Department of Neuroscience, Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa, 3525422, Israel
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology, Haifa, 3200003, Israel
- Present address: School of Chemistry, University of Southampton, Highfield, Southampton, SO17 1BJ, UK
| | - Kseniya Kulbitski
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology, Haifa, 3200003, Israel
| | - Mykhail O Kompanets
- L.M. Litvinenko Institute of Physico-Organic Chemistry and Coal Chemistry, National Academy of Sciences of Ukraine, Kyiv, 02660, Ukraine
| | - Moris S Eisen
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology, Haifa, 3200003, Israel
| | - Shai Berlin
- Department of Neuroscience, Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa, 3525422, Israel
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Shaik F, Milan R, Amirav L. Gold@Carbon Nitride Yolk and Core-Shell Nanohybrids. ACS APPLIED MATERIALS & INTERFACES 2022; 14:21340-21347. [PMID: 35467354 DOI: 10.1021/acsami.2c01906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Graphitic carbon nitride (g-C3N4) is a promising conjugated polymer with visible light responsiveness and numerous intriguing characteristics that make it highly beneficial for a myriad of potential applications. A novel design and universal approach for the fabrication of unique plasmonic g-C3N4 nanoscale hybrids, with well-controlled morphology, is presented. A single gold nanoprism is encapsulated within dense or hollow g-C3N4 spheres for the formation of Au@g-C3N4 core-shell and Au@g-C3N4 yolk-shell nanohybrids. Au nanoprisms were chosen duo to the strong (visible range) plasmon resonances and electromagnetic field hotspots formed at their sharp corners. The incorporation of Au nanoprisms into the g-C3N4 nanospheres results in a dramatic ∼threefold rise in the emission of plasmonic g-C3N4 yolk-shell nanohybrids and ∼3.6-fold enhancement of the photocurrent density obtained from the plasmonic g-C3N4 core-shell nanohybrids, when compared with the g-C3N4 hollow nanospheres. Hence, these hybrids can potentially benefit applications in the areas spanning from solar energy harvesting to biomedical imaging and theranostics.
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Affiliation(s)
- Firdoz Shaik
- Schulich Faculty of Chemistry, Technion─Israel Institute of Technology, Haifa 32000, Israel
| | - Riccardo Milan
- Schulich Faculty of Chemistry, Technion─Israel Institute of Technology, Haifa 32000, Israel
| | - Lilac Amirav
- Schulich Faculty of Chemistry, Technion─Israel Institute of Technology, Haifa 32000, Israel
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Bag J, Mukherjee S, Ghosh SK, Das A, Mukherjee A, Sahoo JK, Tung KS, Sahoo H, Mishra M. Fe 3O 4 coated guargum nanoparticles as non-genotoxic materials for biological application. Int J Biol Macromol 2020; 165:333-345. [PMID: 32980413 DOI: 10.1016/j.ijbiomac.2020.09.144] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 09/04/2020] [Accepted: 09/19/2020] [Indexed: 02/06/2023]
Abstract
The current study aims to check various behavioural, developmental, cytotoxic, and genotoxic effects of Fe3O4-GG nanocomposite (GGNCs) on Drosophila melanogaster. Fe3O4 nanoparticles were prepared by the chemical co-precipitation method and cross-linked with guargum nanoparticles to prepare the nanocomposites. The nanocomposites were characterized by using transmission electron microscopy (TEM), X-ray diffraction (XRD), and FTIR techniques. To investigate the biomolecular interaction, GGNCs was further tagged with Fluorescein isothiocyanate. Various concentrations of nanocomposites were mixed with the food and flies were allowed to complete the life cycle. The life cycle of the flies was studied as a function of various concentrations of GGNCs. The 1st instar larvae after hatching from the egg start eating the food mixed with GGNCs. The 3rd instar larvae were investigated for various behavioural and morphological abnormalities within the gut. The 3rd instar larva has defective crawling speed, crawling path, and more number of micronuclei within the gut. Similarly, in adult flies thermal sensitivity, climbing behaviour was found to be altered. In adult flies, a significant reduction in body weight was found which is further correlated with variation of protein, carbohydrate, triglyceride, and antioxidant enzymes. Altogether, the current study suggests GGNCs as a non-genotoxic nanoparticle for various biological applications.
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Affiliation(s)
- Janmejaya Bag
- Neural Developmental Biology Lab, Department of Life Science, NIT Rourkela, Rourkela, Odisha 769008, India
| | - Sumit Mukherjee
- Neural Developmental Biology Lab, Department of Life Science, NIT Rourkela, Rourkela, Odisha 769008, India
| | - Sumanta Kumar Ghosh
- Division of Pharmaceutical and Fine Chemical Technology, Department of Chemical Technology, University of Calcutta, West Bengal 700009, India
| | - Aatrayee Das
- Division of Pharmaceutical and Fine Chemical Technology, Department of Chemical Technology, University of Calcutta, West Bengal 700009, India
| | - Arup Mukherjee
- Division of Pharmaceutical and Fine Chemical Technology, Department of Chemical Technology, University of Calcutta, West Bengal 700009, India; Department of Biotechnology, MaulanaAbulKalam Azad University of Technology, West Bengal 741249, India.
| | - Jitendra Kumar Sahoo
- Department of Chemistry, NIT Rourkela, Rourkela, Odisha 769008, India; Department of Basic Science and Humanities, GIET University, Gunupur, Odisha 765022, India
| | - Kshyama Subhadarsini Tung
- Neural Developmental Biology Lab, Department of Life Science, NIT Rourkela, Rourkela, Odisha 769008, India
| | - Harekrushna Sahoo
- Department of Chemistry, NIT Rourkela, Rourkela, Odisha 769008, India; Centre for Nanomaterials, NIT Rourkela, Rourkela, Odisha 769008, India
| | - Monalisa Mishra
- Neural Developmental Biology Lab, Department of Life Science, NIT Rourkela, Rourkela, Odisha 769008, India; Centre for Nanomaterials, NIT Rourkela, Rourkela, Odisha 769008, India.
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Teleanu DM, Chircov C, Grumezescu AM, Volceanov A, Teleanu RI. Contrast Agents Delivery: An Up-to-Date Review of Nanodiagnostics in Neuroimaging. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E542. [PMID: 30987211 PMCID: PMC6523665 DOI: 10.3390/nano9040542] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 03/28/2019] [Accepted: 03/29/2019] [Indexed: 12/14/2022]
Abstract
Neuroimaging is a highly important field of neuroscience, with direct implications for the early diagnosis and progression monitoring of brain-associated diseases. Neuroimaging techniques are categorized into structural, functional and molecular neuroimaging, each possessing advantages and disadvantages in terms of resolution, invasiveness, toxicity of contrast agents and costs. Nanotechnology-based approaches for neuroimaging mostly involve the development of nanocarriers for incorporating contrast agents or the use of nanomaterials as imaging agents. Inorganic and organic nanoparticles, liposomes, micelles, nanobodies and quantum dots are some of the most studied candidates for the delivery of contrast agents for neuroimaging. This paper focuses on describing the conventional modalities used for imaging and the applications of nanotechnology for developing novel strategies for neuroimaging. The aim is to highlight the roles of nanocarriers for enhancing and/or overcome the limitations associated with the most commonly utilized neuroimaging modalities. For future directions, several techniques that could benefit from the increased contrast induced by using imaging probes are presented.
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Affiliation(s)
- Daniel Mihai Teleanu
- Emergency University Hospital, "Carol Davila" University of Medicine and Pharmacy, 050474 Bucharest, Romania.
| | - Cristina Chircov
- Faculty of Engineering in Foreign Languages, Politehnica University of Bucharest, 060042 Bucharest, Romania.
- Faculty of Applied Chemistry and Materials Science, Politehnica University of Bucharest, 011061 Bucharest, Romania.
| | - Alexandru Mihai Grumezescu
- Faculty of Applied Chemistry and Materials Science, Politehnica University of Bucharest, 011061 Bucharest, Romania.
- ICUB - Research Institute of University of Bucharest, University of Bucharest, 36-46 M. Kogalniceanu Blvd., Bucharest 050107, Romania.
| | - Adrian Volceanov
- Faculty of Applied Chemistry and Materials Science, Politehnica University of Bucharest, 011061 Bucharest, Romania.
| | - Raluca Ioana Teleanu
- "Victor Gomoiu" Clinical Children's Hospital, "Carol Davila" University of Medicine and Pharmacy, 050474 Bucharest, Romania.
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