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An engineered adeno-associated virus mediates efficient blood-brain barrier penetration with enhanced neurotropism and reduced hepatotropism.
J Control Release
January 2025
Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, 430074 Wuhan, PR China; Shenzhen Key Laboratory of Viral Vectors for Biomedicine, Shenzhen-Hong Kong Institute of Brain Science, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, 518055 Shenzhen, PR China; Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, 430071 Wuhan, PR China; Key Laboratory of Quality Control Technology for Virus-Based Therapeutics, Guangdong Provincial Medical Products Administration, NMPA Key Laboratory for Research and Evaluation of Viral Vector Technology in Cell and Gene Therapy Medicinal Products, The Brain Cognition and Brain Disease Institute, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, 518055 Shenzhen, PR China; University of Chinese Academy of Sciences, 100049 Beijing, PR China; Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, 200031 Shanghai, PR China. Electronic address:
The blood-brain barrier (BBB) is a formidable barrier that restricts the entry of substances into the brain, complicating the study of brain function and the treatment of neurological conditions. Traditional methods of delivering genes from the periphery to the central nervous system (CNS) using adeno-associated viruses (AAVs) often require high doses, which can trigger immune responses and hepatotoxicity. Here, we developed a new AAV variant named AAVhu.
View Article and Find Full Text PDFIs tetrodotoxin intoxication the cause of "zombi voice" in Haiti?
Eur Arch Otorhinolaryngol
December 2024
School of Medicine, UFR Simone Veil, Université Versailles Saint-Quentin-en-Yvelines (Paris Saclay University), 2 Av. de la Source de la Bièvre, 78 180, Montigny-le-Bretonneux, France.
Objective: Zombification, a magical and religious process in Haiti, has been scientifically studied and remains relevant. Originating from the convergence of African, Caribbean, and Christian rites, it involves a comatose trance, transforming individuals into living dead through Voodoo practices. Haitian zombies consistently exhibit a preserved expression marked by a nasal voice, a result of nasalization-using nasal cavities as resonators during phonation.
View Article and Find Full Text PDFIntranasal Immunotherapy with M2 Macrophage Secretome Ameliorates Language Impairments and Autistic-like Behavior in Children.
J Clin Med
May 2024
Laboratory of Cellular Immunotherapy, Research Institute of Fundamental and Clinical Immunology, 630099 Novosibirsk, Russia.
: The intranasal delivery of various neurotropic substances is considered a new attractive therapeutic approach for treating neuropathologies associated with neuroinflammation and altered regeneration. Specific language impairment (SLI) that arises as a result of damage to the cortical speech zones during the developmental period is one of the most common problems in preschool children, and it is characterized by persistent difficulties in the acquisition, understanding, and use of language. This study's objective is to evaluate the efficacy and safety of intranasal immunotherapy using the M2 macrophage secretome as a rich source of immunoregulatory and neurotrophic factors for the treatment of severe language impairment in children.
View Article and Find Full Text PDFEmerging concerns of blood-brain barrier dysfunction caused by neurotropic enteroviral infections.
Virology
March 2024
Department of Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou, 450001, China. Electronic address:
Enteroviruses (EVs), comprise a genus in the Picornaviridae family, which have been shown to be neurotropic and can cause various neurological disorders or long-term neurological condition, placing a huge burden on society and families. The blood-brain barrier (BBB) is a protective barrier that prevents dangerous substances from entering the central nervous system (CNS). Recently, numerous EVs have been demonstrated to have the ability to disrupt BBB, and further lead to severe neurological damage.
View Article and Find Full Text PDFThe Effect of Original Russian Neurotropic Drugs on Organic Anion Transporting Polypeptides OATP1B1 and OATP1B3.
Bull Exp Biol Med
December 2023
Ryazan State Medical University, Ministry of Health of the Russian Federation, Ryazan, Russia.
In experiments on HepG2 cells, we studied the effect of the original domestic neurotropic drugs omberacetam, fabomotizole, and ethylmethylhydroxypyridine succinate (EMHPS) (1-500 μM) on the activity and content of organic anion transporting polypeptides OATP1B1 and OATP1B3. It was shown that omberacetam (500 μM) increased the content of OATP1B1 and OATP1B3, fabomotizole did not affect the level of both transporters, and EMHPS (500 μM) increased the content of OATP1B1 compared to the control and did not affect the level of OATP1B3. The tested substances also reduced the OATP1B1/OATP1B3 ratio, as evidenced by a decrease in the penetration of atorvastatin, a substrate of the transporters, into HepG2 cells in the presence of omberacetam (100-500 μM), fabomotizole (500 μM), and EMHPS (10-500 μM).
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