109 results about "Hepatitis viral c" patented technology

The invention provides a medicine composition for treating cancer. The medicine composition comprises an inhibitor for inhibiting FOXRED2 protein expression and application of Paraprevir in preparation of a medicine for treating cancer. According to the application disclosed by the invention, the new indication of the hepatitis C medicine paritaprevir for inhibiting the malignant process of the liver cancer HCC is found for the first time, the treatment field of the medicine in the liver cancer is expanded, and a theoretical basis is provided for developing a new target spot for treating the liver cancer.

Provided herein are non-naturally occurring variants of the hepatitis B virus (HBV) Core protein, the HBV polymerase N-terminal domain, and the HBV polymerase C-terminal domain, as well as immunogenic fragments thereof. Fusion proteins comprising the HBV variants fused to a herpes simplex virus (HSV) glycoprotein (gD) sequence, as well as methods of using the fusion proteins, are also provided.

Provided herein are methods of detecting sources of hepatitis B virus (HBV) surface antigens (HbsAgs) in samples. Some exemplary embodiments include amplifying HBV transcript nucleic acids in or from a sample and quantifying an amount of HBV transcript nucleic acids transcribed from HBV cccDNA and an amount of HBV transcript nucleic acids transcribed from the HBV iDNA. Related systems and other aspects are also provided.

This invention generally relates to a novel RNA / mRNA production and amplification method using viral RNA replicase and / or RNA-dependent RNA polymerase (RdRp) enzymes as well as the associated mRNAs thereof. The present invention can be used for manufacturing and amplifying all varieties of RNA / mRNA sequences carrying at least an RdRp-binding site in the 5′- or 3′-end, or both. The RNA / mRNA so obtained is useful for not only producing mRNA vaccines and / or RNA-based medicines but also for generating the mRNA-associated proteins, peptides, and / or antibodies under an in-vitro as well as in-cell translation condition. Principally, the present invention is a novel RNA replicase-mediated RNA / mRNA amplification method, namely Replicase Cycling Reaction (RCR). The RNA replicases involved in RCR include but not limited to viral and / or bacteriophage RNA-dependent RNA polymerases (RdRp), particularly coronaviral and hepatitis C viral (HCV) RdRp enzymes.

The present invention relates to a composition for detecting hepatitis C viruses HCV 4, HCV 1b, HCV 1, HCV 2 and HCV 3 and differentiating same, and the use thereof.

Described herein is a singleplex RT-LAMP-based tests using modified primer sets. Contrived whole blood samples containing HIV-1 or HCV virions were diluted in equal parts water and loaded directly into optimized RT-LAMP master mixes. To mitigate cold-chain storage dependence, RT-LAMP reactions were performed using a lyophilized master mix. The reactions were heated for, for example 30 minutes using a hand-held, battery-powered heating device for simultaneous virion lysis and amplification.

The present invention relates to a novel purine derivative compound and a composition for enhancing an immune response comprising same as an active ingredient. The compound of the present invention not only has a nanomolar EC50 value for TLR7, which is an intracellular membrane receptor of immune cells, but also has high selectivity for TLR7 compared to TLR8, which has a similar structure and is mainly distributed in the endoplasmic reticulum (ER), thereby being able to induce sustained immune activation. Therefore, the compound of the present invention can be effectively used as an efficient vaccine adjuvant composition against various RNA viruses including influenza virus, SARS-CoV-2, and hepatitis C virus.

To provide compositions and methods for inducing an adaptive immune response against Hepatitis C virus (HCV) in a subject.SOLUTION: In some embodiments, the present invention provides a composition comprising a nucleoside-modified nucleic acid molecule encoding a HCV antigen, adjuvant, or a combination thereof. For example, in some embodiments, the composition comprises a vaccine comprising a nucleoside-modified nucleic acid molecule encoding a HCV antigen, an adjuvant, or a combination thereof.SELECTED DRAWING: None

The present disclosure is concerned with substituted tetrahydrobenzothiophene and tetrahydropyridothiophene compounds, pharmaceutical compositions comprising the compounds, and methods of using the compounds in the treatment of viral infections due to a Flavi virus (e.g, yellow fever, Japanese encephalitis, dengue (DENV), West Nile virus (WNV), zika (ZIKV), tick-bome encephalitis virus. Kunjin virus. Murray Valley encephalitis, St Louis encephalitis, Omsk hemorrhagic fever virus, bovine viral diarrhea virus, Hepatitis C virus) or an Alphavirus (e.g., Venezeulan equine encephalitis virus, chikungunya virus (CHIKV), Ross River virus, Mayaro virus, Sindbis virus). This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.

Disclosed herein are method of vaccinating or treating a subject for a hepatitis C virus. In certain embodiments, methods comprise administering to a subject a DNA plasmid encoding hepatitis C virus core, E1, E2, and / or p7 proteins. In certain embodiments, methods further comprise administering a recombinant attenuated vaccinia vector encoding hepatitis C virus non-structural NS3, NS4a, NS4b, NS5a and / or NS5b proteins. In certain embodiments, the subject is a human subject.

This disclosure provides a recombinant hepatitis C virus glycoprotein comprising heterodimers of E1 and E2 glycoproteins having at least 60% homology with SEQ ID No. 1, engineered furin protease cleavage sites, and hydrophilic amino acid linkers, wherein the E1 and E2 glycoproteins partially or completely lack their respective transmembrane domains. This document further provides nucleic acids encoding the recombinant hepatitis C virus glycoprotein, nanoparticle conjugates comprising the recombinant hepatitis C virus glycoprotein, and compositions comprising the recombinant hepatitis C virus glycoprotein, the nucleic acid, or the nanoparticle conjugate. Applications of the recombinant hepatitis C virus glycoprotein or compositions comprising the glycoprotein are also envisioned.

Disclosed herein are nucleoside phosphoramidates and their use as agents for treating viral diseases. These compounds are inhibitors of RNA-dependent RNA viral replication and are useful as inhibitors of HCV NS5B polymerase, as inhibitors of HCV replication and for treatment of hepatitis C infection in mammals.

The invention discloses a lentiviral vector and lentiviral vector particles for treating hepatitis B infection. The lentiviral vector and particles of the invention contain a nucleotide sequence coding an hepatitis B virus antigen. The large S antigen of hepatitis B virus was in particular selected as candidate and can be applied in pharmaceutical compositions or vaccines for treating and / or preventing hepatitis B virus infection or treating and / or preventing diseases caused by hepatitis B virus infection, which has excellent therapeutic and preventive effects in subjects in need thereof.

Provided is a liquid formulation of a six combined vaccine containing DPT-IPV-Hib-HBs, in which a HBs antigen is stably adsorbed and retained to an aluminum adjuvant, and PRP as a Hib antigen is stably coupled and retained to a carrier protein. A method for producing a stable liquid formulation of a six combined vaccine against diphtheria, pertussis, tetanus, polio, Haemophilus influenzae type b (Hib), and hepatitis B (HepB), the method comprising the following steps of: (1) mixing diphtheria toxoid (D) and tetanus toxoid (T) with an aluminum adjuvant to produce a DT adjuvant; (2) mixing a hepatitis B surface (HBs) antigen with the DT adjuvant obtained in step (1) to produce a DT-HBs adjuvant; (3) mixing a pertussis antigen (P) with the DT-HBs adjuvant obtained in step (2) to produce a DPT-HBs adjuvant; (4) mixing inactivated poliovirus (IPV) with the DPT-HBs adjuvant obtained in step (3) to produce a DPT-IPV-HBs adjuvant; (5) adding a succinate phosphate buffer to the DPT-IPV-HBs adjuvant obtained in step (4), and then adding PRP (PRP-T conjugate) as a Hib antigen to produce a mixture of DPT-IPV-Hib-HBs adjuvant and PRP-T conjugate; and (6) adjusting pH of the mixture of DPT-IPV-Hib-HBs adjuvant and PRP-T conjugate obtained in step (5) to 5.4 to 5.9.

This invention discloses a primer set for amplifying a novel HCV subtype 6xp and a primer set for detecting drug resistance mutations. The primer set for amplifying the novel HCV subtype 6xp includes nested PCR primers for amplifying the full length of the novel HCV subtype 6xp, while the primer set for detecting drug resistance mutations is a set of primers targeting drug resistance mutation sites in the three functional regions of NS3, NS5A, and NS5B. The primer set provided by this invention has high specificity and high amplification efficiency, enabling specific amplification of the entire genome of the novel HCV subtype 6xp and accurate detection of drug resistance mutation sites in the three functional regions. It is suitable for clinical diagnosis, antiviral treatment guidance, epidemiological surveys, and viral evolution research of this subtype, and has significant clinical application value and scientific research significance.

Compounds, specifically hepatitis B virus and / or hepatitis D virus inhibitors, more specifically compounds that inhibit HBe antigen and HBs antigen in a subject, for the treatment of viral infections, and methods of preparing and using such compounds.

The invention relates to the technical field of medical examination, in particular to a rapid extraction-free hepatitis C virus detection kit and method. According to the invention, the material carrier is used for providing carrier support for reagent freeze-drying, and during use, the remelting buffer solution is used for remelting, so that the use effect before freeze-drying is achieved. The kit provided by the invention is used as a freeze-drying reagent, and solves the problem of cold-chain transportation of nucleic acid detection kits. The product simulates storage under different temperature conditions, detection results show that the product changes within 15 months, the storage period exceeds that of a control kit, and a new direction is laid for development and exploration of a later nucleic acid detection kit (pcr method). The kit disclosed by the invention lays a foundation for market occupation and long-term development by utilizing storage stability and transportation stability of the kit.

The application provides an RT-RAP primer probe set and kit for detecting blood viruses, and belongs to the technical field of molecular biology. The primer probe set comprises a primer probe set for detecting hepatitis B virus, and / or a primer probe set for detecting hepatitis C virus, and / or a primer probe set for detecting human immunodeficiency virus. The application adopts the detection means of RT-RAA and qPCR in sequence, and can simultaneously and rapidly detect hepatitis B virus, hepatitis C virus and human immunodeficiency virus in combination with the specific primer probe set, has higher sensitivity than ordinary qPCR, greatly shortens the reaction time, and has good specificity.

The invention discloses a digital PCR nucleic acid detection kit, and relates to the technical field of in vitro diagnosis detection, the kit comprises primers, probes, a reaction liquid and a quality control liquid, the kit is used for simultaneously detecting hepatitis A virus, hepatitis B virus, hepatitis C virus, hepatitis D virus and hepatitis E virus, the reaction liquid comprises Master Mix and sterile enzyme-free water, and the quality control liquid is used for simultaneously detecting the hepatitis A virus, the hepatitis B virus, the hepatitis C virus, the hepatitis D virus and the hepatitis E virus. The quality control liquid comprises a negative quality control product and a positive quality control product. Through cooperation of sample collection, sample treatment, digital PCR reaction system preparation, digital PCR amplification and result analysis, nucleic acid detection based on the PCR technology shortens the window period by 50-70% through direct detection of virus genetic materials, becomes a key means for early diagnosis, and adopts the technical principle of digital PCR to realize rapid detection of the virus genetic materials. Compared with a traditional fluorescent quantitative PCR and immunological detection method and a qPCR method, the detection sensitivity is improved by 10-100 times, and absolute quantification can be achieved.

The present invention relates to novel macrocyclic compounds and methods of use thereof. The present invention further relates to pharmaceutical compositions comprising the compounds of the present invention, or pharmaceutically acceptable salts, esters, or prodrugs thereof, in combination with a pharmaceutically acceptable carrier or excipient.

The present disclosure provides methods and compositions for treating a disease or condition involving inflammation and / or fibrosis in the liver, e.g., metabolic dysfunction-associated steatohepatitis (MASH), metabolic dysfunction-associated steatotic liver disease (MASLD), primary biliary cholangitis, primary sclerosing cholangitis, alcoholic cirrhosis, hepatitis cirrhosis, cholestasis, autoimmune hepatitis, viral hepatitis B, viral hepatitis C, hemochromatosis, Wilson's disease, or alcoholic steatohepatitis, with a therapeutic dose of an anti-TNF-like ligand 1A (TL1A) antibody.

The present invention relates to a film-coated swallowable tablet comprising eltrombopag bis(monoethanolamine) and pharmaceutically acceptable excipients comprising calcium silicate as diluent. The invention further relates to the use of said tablet as a medicament, particularly in the treatment of immune thrombocytopenia (ITP), thrombocytopenia in patients with chronic hepatitis C virus (HCV) and severe aplastic anaemia (SAA).

The present disclosure provides immunogenic compositions comprising one or more T-cell epitope polypeptides, or a fusion polypeptide comprising two or more T-cell epitope polypeptides. The present disclosure provides a method for inducing an immune response to hepatitis C virus in an individual, the method comprising administering to the individual an immunogenic composition of the present disclosure.

The invention features lentiviral transfer vectors that include heterologous nucleic acids to be introduced into a cell. The lentiviral transfer vector may be characterized by the following features: (a) including a cytomegalovirus (CMV) promoter; (b) including a polynucleotide encoding a partial gag protein that includes a mutated INS1 inhibitory sequence that reduces restriction of nuclear export of RNA; (c) not including a polynucleotide encoding the INS2, INS3, and INS4 inhibitory sequences of gag; (d) not including an SV40 origin of replication and / or an f1 origin of replication; (e) including a cPPT sequence that contains splice site; (f) including an EF1 alpha promoter with intact splice donor and acceptor sites; and (g) including hepatitis B PRE with mutation in start codon of X protein ORF.

The invention relates to the technical field of biomedicine, and provides a new target, a new small nucleic acid drug and application of the new small nucleic acid drug in preparation of drugs for prevention or treatment for resisting infection of three viruses of Zika virus (ZIKV), dengue virus (DENV) and hepatitis C virus (HCV). According to the invention, the specific nucleotide sequences of the target lipid droplet coating protein (Perilipin), which are shown as SEQ ID NO.1 to SEQ ID NO.3, are obtained through screening. Experiments discover that Perilipin plays an important role in flavivirus infected target cells, expression and replication of the three virus proteins and genome RNA in the target cells can be effectively blocked by down-regulating expression of Perilipin, and therefore it is proved that Perilipin can serve as a new target spot for resisting infection of the three flaviviruses, and the application of Perilipin in resisting flavivirus infection is proven to be a new target spot for resisting infection of the three flaviviruses. Specific small nucleic acid can be used as an antiviral drug for the three flaviviruses.

A synergistic pharmaceutical combination of Compound 1 or a pharmaceutically acceptable salt thereof (e.g., Compound 1-A) and Compound 2 or a pharmaceutically acceptable salt thereof, as well as its uses to treat hepatitis C or a condition related to hepatitis C, as well as methods for the manufacture of the pharmaceutical combination:

Methods of identifying virus antigens are provided. In particular the antigens induce broadly neutralizing antibodies in Hepatitis C virus infections. Compositions for inducing an immune response are identified by the methods described herein.

The present disclosure provides heterodimeric polypeptides comprising: 1) a variant hepatitis C virus (HCV) E2 polypeptide and an HCV E1 polypeptide; 2) a variant HCV E1 polypeptide and an HCV E2 polypeptide; or 3) a variant HCV E1 polypeptide and a variant HCV E2 polypeptide, where the variant HCV E2 polypeptide and / or the HCV E1 polypeptide comprises one or more T cell epitopes, present in an HCV polypeptide other than an HCV E1 polypeptide or an HCV E2 polypeptide. The present disclosure provides nucleic acids encoding a polyprotein that includes E1 and variant E2, E2 and variant E1, or variant E2 and variant E1. The present disclosure provides a method of producing an E1 / E2 heterodimer of the present disclosure. The present disclosure provides a method of inducing an immune response in an individual. The present disclosure provides variant E2 polypeptides and variant E1 polypeptides; and nucleic acids encoding same.

A method for the extraction and enrichment of Hepatitis C Virus (HCV) antigens by conjugating specific antibodies targeting Envelope 1, Envelope 2, NS3, and NS4 antigens to a temperature-responsive smart polymer (NIPAAm-Co-HIPAAm-Co-SAKIPAAm). The application also relates to a detection kit for HCV antigens, comprising the smart polymer conjugated to specific antibodies, colloidal gold nanoparticles conjugated to specific antibodies, and instructions for detecting HCV antigens in serum, plasma, or whole blood samples.

Described herein are methods and compositions relating to inhibition of bile salt hydrolase (BSH) and uses thereof. Provided herein are methods for treating metabolic disorders (e.g., diabetes, obesity), gastrointestinal diseases (e.g., gastrointestinal infections; inflammatory bowel disease (IBD); appendicitis; crohn's disease (CD); ulcerative colitis (UC); gastritis; enteritis; esophagitis; pancreatitis; diabetes; hepatitis; a liver disease (e.g., non-alcoholic fatty liver disease (NAFLD); non-alcoholic steatohepatitis (NASH); hepatitis A; hepatitis B; hepatitis C; autoimmune hepatitis; and cirrhosis), gastroesophageal reflux disease (GERD); celiac disease; diverticulosis; food intolerance; ulcer; infectious colitis; irritable bowel syndrome; intestinal leakage; the present invention relates to a method for treating a cancer (e.g., digestive cancer, liver cancer), a cancer (e.g., digestive cancer, liver cancer), or an inflammatory disease (e.g., Crohn's disease, inflammatory bowel disease, ulcerative colitis, pancreatitis, hepatitis, appendicitis, gastritis, diverticulitis, celiac disease, food intolerance, enteritis, ulcer, gastroesophageal reflux disease (GERD), psoriatic arthritis, psoriasis, and rheumatoid arthritis). The method comprises administering to the subject a compound of Formula (I)-(XVIII).