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Infectious Disease: Hepatitis C

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Total 109 results found since Jan 2013.

Hepatitis C Virus Entry into Macrophages/Monocytes Mainly Depends on the Phagocytosis of Macrophages
ConclusionsHCV entry into macrophages mainly depends on phagocytosis of macrophages.
Source: Digestive Diseases and Sciences - December 10, 2018 Category: Gastroenterology Source Type: research

The Associations between Toll-Like Receptor 4 Gene Polymorphisms and Hepatitis C Virus Infection: A systematic and meta-analysis.
CONCLUSION: We demonstrated that rs4986790 and rs2149356 are associated with HCV infection. PMID: 30765614 [PubMed - as supplied by publisher]
Source: Bioscience Reports - February 14, 2019 Category: Biomedical Science Authors: Chaiwiang N, Poyomtip T Tags: Biosci Rep Source Type: research

Ribonucleotide reductase M2 promotes RNA replication of hepatitis C virus by protecting NS5B protein from hPLIC1-dependent proteasomal degradation Microbiology
Hepatitis C virus (HCV) establishes a chronic infection that can lead to cirrhosis and hepatocellular carcinoma. The HCV life cycle is closely associated with host factors that promote or restrict viral replication, the characterization of which could help to identify potential therapeutic targets. To this end, here we performed a genome-wide microarray analysis and identified ribonucleotide reductase M2 (RRM2) as a cellular factor essential for HCV replication. We found that RRM2 is up-regulated in response to HCV infection in quiescent hepatocytes from humanized chimeric mouse livers. To elucidate the molecular basis of ...
Source: Journal of Biological Chemistry - April 11, 2019 Category: Chemistry Authors: Bouchra Kitab, Masaaki Satoh, Yusuke Ohmori, Tsubasa Munakata, Masayuki Sudoh, Michinori Kohara, Kyoko Tsukiyama-Kohara Tags: Microbiology Source Type: research

Host factor prioritization for pan-viral genetic perturbation screens using random intercept models and network propagation
by Simon Dirmeier, Christopher D ächert, Martijn van Hemert, Ali Tas, Natacha S. Ogando, Frank van Kuppeveld, Ralf Bartenschlager, Lars Kaderali, Marco Binder, Niko Beerenwinkel Genetic perturbation screens using RNA interference (RNAi) have been conducted successfully to identify host factors that are essential for the life cycle of bacteria or viruses. So far, most published studies identified host factors primarily for single pathogens. Furthermore, often only a small subset of genes, e.g., genes encoding kinases, have been targeted. Identification of host factors on a pan-pathogen level, i.e., genes that are crucial ...
Source: PLoS Computational Biology - February 9, 2020 Category: Biology Authors: Simon Dirmeier Source Type: research

Viruses, Vol. 12, Pages 1189: Are Viral Vectors Any Good for RNAi Antiviral Therapy?
m RNA interference (RNAi) represents a novel approach for alternative antiviral therapy. However, issues related to RNA delivery and stability have presented serious obstacles for obtaining good therapeutic efficacy. Viral vectors are capable of efficient delivery of RNAi as short interfering RNA (siRNA), short hairpin RNA (shRNA) and micro-RNA (miRNA). Efficacy in gene silencing for therapeutic applications against viral diseases has been demonstrated in various animal models. Rotavirus (RV) miR-7 can inhibit rotavirus replication by targeting the RV nonstructural protein 5. Viral gene silencing by targeting the RNAi ...
Source: Viruses - October 20, 2020 Category: Virology Authors: Kenneth Lundstrom Tags: Editorial Source Type: research

GSE140589 Cd302 and Cr1l restrict human hepatotropic virus cross-species transmission to mice  6PMH siRNA
Contributors : Richard Brown ; Birthe Tegtmeyer ; Thomas PietschmannSeries Type : Expression profiling by high throughput sequencingOrganism : Mus musculusVirus species- and tissue-tropism is governed by host dependency and restriction factors. Hepatitis C virus (HCV) exhibits a narrow species-tropism and murine hepatocytes are refractory to infection. Using murine liver cDNA library screening we identified Cd302, a lectin, and Cr1l, a complement receptor, as pan-genotypic restrictors of HCV infection. Cd302/Cr1l interact to impede virion uptake and co-operatively induce a non-canonical transcriptional program, inhibiting ...
Source: GEO: Gene Expression Omnibus - December 1, 2020 Category: Genetics & Stem Cells Tags: Expression profiling by high throughput sequencing Mus musculus Source Type: research

Viruses, Vol. 13, Pages 726: The Immunomodulatory CEA Cell Adhesion Molecule 6 (CEACAM6/CD66c) Is a Protein Receptor for the Influenza A Virus
Wirth Sunil K. Lal To establish a productive infection in host cells, viruses often use one or multiple host membrane glycoproteins as their receptors. For Influenza A virus (IAV) such a glycoprotein receptor has not been described, to date. Here we show that IAV is using the host membrane glycoprotein CD66c as a receptor for entry into human epithelial lung cells. Neuraminidase (NA), a viral spike protein, binds to CD66c on the cell surface during IAV entry into the host cells. Lung cells overexpressing CD66c showed an increase in virus binding and subsequent entry into the cell. Upon comparison, CD66c demonstrated...
Source: Viruses - April 21, 2021 Category: Virology Authors: Shah Kamranur Rahman Mairaj Ahmed Ansari Pratibha Gaur Imtiyaz Ahmad Chandrani Chakravarty Dileep Kumar Verma Anshika Sharma Sanjay Chhibber Naila Nehal Dagmar Wirth Sunil K. Lal Tags: Article Source Type: research

USP18 Mediates Interferon Resistance of Dengue Virus Infection
Previous studies demonstrated that dengue virus (DENV) infection developed resistance to type-I interferons (IFNα/β). The underlying mechanism remains unclear. USP18 is a negative regulator of IFNα/β signaling, and its expression level is significantly increased following DENV infection in cell lines and patients’ blood. Our previous study revealed that increased USP18 expression contributed to the IFN-α resistance of Hepatitis C Virus (HCV). However, the role of USP18 in DENV replication and resistance to IFN-α is elusive. In this current study, we aimed to explore the role of USP18 in DENV-2 replication and resis...
Source: Frontiers in Microbiology - April 30, 2021 Category: Microbiology Source Type: research

A Novel Flavivirus-based System For Production Of Hepatitis C Virus (HCV): Production Of Infectious Virions And Development Of A Novel Reporter System For Studying HCV Virion Entry.
A Novel System for Producing Infectious Hepatitis C Virus (HCV) Virions and Development of a Novel Reporter System for Studying HCV EntryDescription of Technology: HCV has infected an estimated 3% of the world population in whom viral infection persists for more than two third of the cases, often resulting in life-threatening complications. The standard of care (pegylated interferon alpha-2 plus ribavirin) is efficient in only 50% of treated patients, costly and has numerous side effects. In addition, viral resistance to newly developed drugs -- targeting viral protease or RNA polymerase -- has been described, but no vacci...
Source: NIH OTT Licensing Opportunities - June 23, 2009 Category: Research Authors: ott-admin Source Type: research

A Novel System for Producing Infectious Hepatitis C Virus (HCV) Virions and Development of a Novel Reporter System for Studying HCV Entry
HCV has infected an estimated 3% of the world population in whom viral infection persists for more than two third of the cases, often resulting in life-threatening complications. The standard of care (pegylated interferon alpha-2 plus ribavirin) is efficient in only 50% of treated patients, costly and has numerous side effects. In addition, viral resistance to newly developed drugs -- targeting viral protease or RNA polymerase -- has been described, but no vaccine is yet available. The difficulty in developing HCV vaccines is largely due to the broad sequence-diversity displayed by HCV, the frequent occurrence of viral mut...
Source: NIH OTT Licensing Opportunities - June 23, 2009 Category: Research Authors: ott-admin Source Type: research

Associations of DDX60L With the Clinical Features and Prognosis of Hepatocellular Carcinoma
ConclusionWe found that the downregulation of DDX60L expression correlated with poor prognosis in patients with HCC, which may be independent of the HCV-related pathway. Furthermore, DDX60L significantly inhibited the proliferation of Hep3B cells, migration and invasion of Hep3B and HCCLM3 cells. Therefore, DDX60L can serve as a prognostic biomarker and therapeutic target for HCC.
Source: Frontiers in Oncology - February 11, 2022 Category: Cancer & Oncology Source Type: research

Calcitriol attenuates liver fibrosis through hepatitis C virus nonstructural protein 3-transactivated protein 1-mediated TGF β1/Smad3 and NF-κB signaling pathways
CONCLUSION: Our results suggest that calcitriol may be employed as an adjuvant therapy for hepatic fibrosis and that NS3TP1 is a unique, prospective therapeutic target in hepatic fibrosis.PMID:37274069 | PMC:PMC10237113 | DOI:10.3748/wjg.v29.i18.2798
Source: World Journal of Gastroenterology : WJG - June 5, 2023 Category: Gastroenterology Authors: Liu Shi Li Zhou Ming Han Yu Zhang Yang Zhang Xiao-Xue Yuan Hong-Ping Lu Yun Wang Xue-Liang Yang Chen Liu Jun Wang Pu Liang Shun-Ai Liu Xiao-Jing Liu Jun Cheng Shu-Mei Lin Source Type: research