Open Access. Powered by Scholars. Published by Universities.®
Biochemistry, Biophysics, and Structural Biology Commons™
Open Access. Powered by Scholars. Published by Universities.®
- Keyword
-
- Humans (2)
- MicroRNAs (2)
- *Cell Culture Techniques (1)
- *Drug Toxicity (1)
- APC (1)
-
- Antigen-presenting cell (1)
- Apoptosis (1)
- Biomarkers (1)
- CD206 (1)
- COL (1)
- Cell Separation (1)
- Cells, Cultured (1)
- Collagen (1)
- Cytokines (1)
- Dendritic Cells (1)
- Dose-Response Relationship, Drug (1)
- Electrophoretic Mobility Shift Assay (1)
- Endoplasmic reticulum stress (ER stress) (1)
- Ethanol (1)
- FITC (1)
- Fibrocytes (1)
- Fibrosis (1)
- Fluorescein isothiocyanate (1)
- Gene Expression Profiling (1)
- Genomics (1)
- HCV (1)
- HSC (1)
- Hepatic stellate cell (1)
- Hepatitis C virus (1)
- Huh7.5 cells infected with JFH-1 (HCV) (1)
- File Type
Articles 1 - 5 of 5
Full-Text Articles in Biochemistry, Biophysics, and Structural Biology
Hepatitis C Virus-Induced Monocyte Differentiation Into Polarized M2 Macrophages Promotes Stellate Cell Activation Via Tgf-Beta, Banishree Saha, Karen Kodys, Gyongyi Szabo
Hepatitis C Virus-Induced Monocyte Differentiation Into Polarized M2 Macrophages Promotes Stellate Cell Activation Via Tgf-Beta, Banishree Saha, Karen Kodys, Gyongyi Szabo
Gyongyi Szabo
BACKGROUND and AIMS: Monocyte and macrophage (MPhi) activation contributes to the pathogenesis of chronic hepatitis C virus (HCV) infection. Disease pathogenesis is regulated by both liver-resident MPhis and monocytes recruited as precursors of MPhis into the damaged liver. Monocytes differentiate into M1 (classic/proinflammatory) or M2 (alternative/anti-inflammatory) polarized MPhis in response to tissue microenvironment. We hypothesized that HCV-infected hepatoma cells (infected with Japanese fulminant hepatitis-1 [Huh7.5/JFH-1]) induce monocyte differentiation into polarized MPhis. METHODS: Healthy human monocytes were co-cultured with Huh7.5/JFH-1 cells or cell-free virus for 7 days and analyzed for MPhi markers and cytokine levels. A similar analysis was performed on …
Endoplasmic Reticulum Stress-Induced Hepatocellular Death Pathways Mediate Liver Injury And Fibrosis Via Stimulator Of Interferon Genes., Arvin Iracheta-Vellve, Jan Petrasek, Benedek Gyongyosi, Abhishek Satishchandran, Patrick Lowe, Karen Kodys, Donna Catalano, Charles D. Calenda, Evelyn A. Kurt-Jones, Kate A. Fitzgerald, Gyongyi Szabo
Endoplasmic Reticulum Stress-Induced Hepatocellular Death Pathways Mediate Liver Injury And Fibrosis Via Stimulator Of Interferon Genes., Arvin Iracheta-Vellve, Jan Petrasek, Benedek Gyongyosi, Abhishek Satishchandran, Patrick Lowe, Karen Kodys, Donna Catalano, Charles D. Calenda, Evelyn A. Kurt-Jones, Kate A. Fitzgerald, Gyongyi Szabo
Gyongyi Szabo
Fibrosis, driven by inflammation, marks the transition from benign to progressive stages of chronic liver diseases. Although inflammation promotes fibrogenesis, it is not known whether other events, such as hepatocyte death, are required for the development of fibrosis. Interferon Regulatory Factor 3 (IRF3) regulates hepatocyte apoptosis and production of Type-I interferons (IFNs). In the liver, IRF3 is activated via Toll-like receptor 4 (TLR4) signaling or the ER adapter, Stimulator of Interferon Genes (STING). We hypothesized that IRF3-mediated hepatocyte death is an independent determinant of chemically-induced liver fibrogenesis. To test this, we performed acute or chronic carbontetrachloride (CCl4) administration to WT, …
Biodistribution And Function Of Extracellular Mirna-155 In Mice, Shashi Bala, Timea Csak, Fatemeh Momen-Heravi, Dora Lippai, Karen Kodys, Donna Catalano, Abhishek Satishchandran, Victor R. Ambros, Gyongyi Szabo
Biodistribution And Function Of Extracellular Mirna-155 In Mice, Shashi Bala, Timea Csak, Fatemeh Momen-Heravi, Dora Lippai, Karen Kodys, Donna Catalano, Abhishek Satishchandran, Victor R. Ambros, Gyongyi Szabo
Gyongyi Szabo
Circulating miRNAs can be found in extracellular vesicles (EV) and could be involved in intercellular communication. Here, we report the biodistribution of EV associated miR-155 using miR-155 KO mouse model. Administration of exosomes loaded with synthetic miR-155 mimic into miR-155 KO mice resulted in a rapid accumulation and clearance of miR-155 in the plasma with subsequent distribution in the liver, adipose tissue, lung, muscle and kidney (highest to lowest, respectively). miR-155 expression was detected in isolated hepatocytes and liver mononuclear cells of recipient KO mice suggesting its cellular uptake. In vitro, exosome-mediated restoration of miR-155 in Kupffer cells from miR-155 …
Advanced Molecular Biologic Techniques In Toxicologic Disease, Jeanine Ward, Gyongyi Szabo, David Mcmanus, Edward Boyer
Advanced Molecular Biologic Techniques In Toxicologic Disease, Jeanine Ward, Gyongyi Szabo, David Mcmanus, Edward Boyer
Gyongyi Szabo
The advancement of molecular biologic techniques and their capabilities to answer questions pertaining to mechanisms of pathophysiologic events have greatly expanded over the past few years. In particular, these opportunities have provided researchers and clinicians alike the framework from with which to answer clinical questions not amenable for elucidation using previous, more antiquated methods. Utilizing extremely small molecules, namely microRNA, DNA, protein, and nanoparticles, we discuss the background and utility of these approaches to the progressive, practicing physician. Finally, we consider the application of these tools employed as future bedside point of care tests, aiding in the ultimate goal of …
Human Monocytes, Macrophages, And Dendritic Cells: Alcohol Treatment Methods, Gyongyi Szabo, Pranoti Mandrekar
Human Monocytes, Macrophages, And Dendritic Cells: Alcohol Treatment Methods, Gyongyi Szabo, Pranoti Mandrekar
Gyongyi Szabo
Both acute and chronic alcohol consumption have significant immunomodulatory effects of which alterations in innate immune functions contribute to impaired antimicrobial defense and inflammatory responses. Blood monocytes, macrophages, and dendritic cells play a central role in innate immune recognition as these cells recognize pathogens, respond with inflammatory cytokine production, and induce antigen-specific T-lymphocyte activation. All of these innate immune cell functions are affected in humans by alcohol intake. Here, we summarize the different effects of acute and chronic alcohol on monocyte, macrophage, and dendritic cell functions in humans and describe methods for separation and functional evaluation of these cell types.