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Full-Text Articles in Medicine and Health Sciences

Intracellular Monitoring By Dendritic Cells - A New Way To Stay Informed - From A Simple Scavenger To An Active Gatherer, Christopher Herbst, Larry A Harshyne, Botond Z Igyártó Oct 2022

Intracellular Monitoring By Dendritic Cells - A New Way To Stay Informed - From A Simple Scavenger To An Active Gatherer, Christopher Herbst, Larry A Harshyne, Botond Z Igyártó

Department of Microbiology and Immunology Faculty Papers

Dendritic cells (DCs) are required for the initiation of the adaptive immune response. Their ability to acquire antigens in the periphery is a critical step in this process. DCs express a wide variety of adhesion molecules and possess an extremely fluid plasma membrane that facilitates scavenging the extracellular environment and capturing material like exosomes, apoptotic bodies, and pathogens. Besides these standard routes, the acquisition of antigens by DCs can be further facilitated by tunneling nanotubes, trogocytosis, and gap junctions. However, in this article, we will argue that this is an incomplete picture, as certain observations in the literature cannot be …


Healthy Exosomes And Their Effects On Diabetic Cardiomyocytes, Miguel A. Garza, Genaro A. Ramírez-Correa, Maria Lourdes Garza-Rodríguez, Andres J. Medina Aug 2022

Healthy Exosomes And Their Effects On Diabetic Cardiomyocytes, Miguel A. Garza, Genaro A. Ramírez-Correa, Maria Lourdes Garza-Rodríguez, Andres J. Medina

MEDI 9331 Scholarly Activities Clinical Years

Extracellular Vesicles, and more specifically, exosomes, are essential for effective cell-to-cell communication in a wide variety of tissues. In the last couple of decades, these nanovesicles have been proven to be active participants and regulators in many disease processes; therefore, their therapeutic effects have been widely studied and proven in various cardiovascular diseases both, in vitro and in vivo. Thus, this study aims at assessing the effects of running healthy mice exosomes on cardiomyocyte and cardiac tissue samples obtained from diabetic mice. Here, we successfully extract exosomes from mice plasma and detect their presence through the use of anti-CD9 and …


Extracellular Vesicle-Derived Mir-144 As A Novel Mechanism For Chronic Intermittent Hypoxia-Induced Endothelial Dysfunction, Huina Zhang, Lu Peng, Yifan Wang, Wen Zhao, Wayne Bond Lau, Yajing Wang, Yu Li, Yunhui Du, Linyi Li, Yu Huang, Shaoping Nie, Yanwen Qin, Xinliang Ma, Yongxiang Wei May 2022

Extracellular Vesicle-Derived Mir-144 As A Novel Mechanism For Chronic Intermittent Hypoxia-Induced Endothelial Dysfunction, Huina Zhang, Lu Peng, Yifan Wang, Wen Zhao, Wayne Bond Lau, Yajing Wang, Yu Li, Yunhui Du, Linyi Li, Yu Huang, Shaoping Nie, Yanwen Qin, Xinliang Ma, Yongxiang Wei

Department of Emergency Medicine Faculty Papers

Rationale: Extracellular vesicles (EVs) play a significant role in cell-cell communication. However, whether and how extracellular vesicles are involved in chronic intermittent hypoxia-induced endothelial dysfunction is unknown. Methods: Comparative transcriptomics analysis and miRNA screening were used to identify the possible pathways or target molecules mediating chronic intermittent hypoxia-induced endothelial function. Serum- or erythrocyte-derived EVs were isolated through ultracentrifugation plus filtration. After in vitro or in vivo treatment with EVs, aortic rings were treated with dihydroethidium staining for superoxidative anion measurement or mounted with wire myography to measure isometric forces. Immunoblotting and qPCR were used for evaluating the molecular mechanism mediating …


Are The Functions Of Milk Exosomes Restricted To Their Protein Cargoes?, Elrashdy M. Redwan, Vladimir N. Uversky Jan 2022

Are The Functions Of Milk Exosomes Restricted To Their Protein Cargoes?, Elrashdy M. Redwan, Vladimir N. Uversky

Molecular Medicine Faculty Publications

No abstract provided.


Sars-Cov-2: A Master Of Immune Evasion, Alberto Rubio-Casillas, Elrashdy M. Redwan, Vladimir N. Uversky Jan 2022

Sars-Cov-2: A Master Of Immune Evasion, Alberto Rubio-Casillas, Elrashdy M. Redwan, Vladimir N. Uversky

Molecular Medicine Faculty Publications

Viruses and their hosts have coevolved for a long time. This coevolution places both the pathogen and the human immune system under selective pressure; on the one hand, the immune system has evolved to combat viruses and virally infected cells, while viruses have developed sophisticated mechanisms to escape recognition and destruction by the immune system. SARS-CoV-2, the pathogen that is causing the current COVID-19 pandemic, has shown a remarkable ability to escape antibody neutralization, putting vaccine efficacy at risk. One of the virus’s immune evasion strategies is mitochondrial sabotage: by causing reactive oxygen species (ROS) production, mitochondrial physiology is impaired, …