67 results about "Cowpox virus" patented technology

A rabbit hide containing novel bioactive material for preparing medicine and health-care product is produced through inoculating the cowpox virus in the body of rabbit, raising it until the cowpox is better developed in skin tissue, and killing the rabbit.

The invention discloses porcine reproductive and respiratory syndrome virus M protein CTL cell epitopes and application thereof. The identification of the epitopes comprises the following steps of: fusing and cloning a M protein gene of a porcine reproductive and respiratory syndrome virus CH-1a strain and a mouse ubiquitin gene to form a DNA vaccine and also form recombination viruses, expressing an M protein, of a WR strain vaccinia virus; immunizing a BALB/c mouse according to a Priming-Boosting policy, separating the mouse splenic lymphocyte, culturing and stimulating a CTL short peptide in vitro predicted and synthesized by a bioinformatic method, and using the flow cytometry and enzyme-linked immunospot technology to identify two CTL epitopes that are K93FITSRCRL and F57GYMTFVHF. The identification of the PRRSVM protein CTL cell epitopes lays a certain theoretical foundation for the PRRS cell immune mechanism and the novel epitope pepetide vaccine and has an instructing significance for the theoretical study on PRRS preventing and control technology.

The invention discloses a porcine reproductive and respiratory syndrome-Ankara vaccinia virus genetic engineering vaccine, the preparation method is that: 1. the PCR amplification of GP5 gene is carried out from the natural porcine reproductive and respiratory syndrome virus; 2. the porcine preferred codon is used for replacing the codon in the natural GP5 gene, so as to carry out GP5 gene optimization and the synthesis of the optimized sequence GP5A; 3. the epitope A in the optimized GP5A gene is replaced by the epitope B of the GP5 gene, so as to obtain the GP5-DB gene; 4. the GP5 and GP5-DB genes are respectively cloned to the expression carrier JN-2; 5. the constructed JN-2-GP5 and the JN-2-GP5-DB plasmid are recombined with Ankara vaccinia virus, so as to obtain the porcine reproductive and respiratory syndrome GP5 and GP5-DB gene Ankara vaccinia virus recombinant vaccine. Experiments confirm that the invention has excellent immune protection in BALB/c mice and pigs.

Methods of enhancing cellular responses to interferons are disclosed. These methods comprise administering to a subject a vector comprising a Stat1-CC transgene, such as an AAV5 vector comprising a reporter operably linked to a nucleic acid sequence encoding a Stat1-CC polypeptide. The methods can be used in the treatment of diseases that involve interferon responses, such as multiple sclerosis, amyotrophic lateral sclerosis, and lupus; viral infections such as infection by hepatitis C virus, influenza A virus, cowpox virus, Sendai virus or Encephalomyocarditis virus; respiratory disorders; and cancers.

The invention relates to a nucleic acid combination product, a detection kit and a micro-fluidic chip. The nucleic acid combination product comprises at least two of the following detection primer pairs: a feline parvovirus primer pair, a feline coronavirus primer pair, a feline herpesvirus type I primer pair, a feline calicivirus primer pair, a feline leukemia virus primer pair, a feline immunodeficiency virus primer pair, a feline astrovirus primer pair, a feline rotavirus primer pair, a cat vaccinia virus primer pair and a cat reovirus primer pair. The nucleic acid combination product can be used for detecting at least two feline pathogenic viruses in the sample to be detected at one time, and is good in specificity and relatively high in detection sensitivity.

The present invention discloses recombinant vaccinia virus (VV) virions that are resistant to antiviral defenses and have enhanced anti-tumor activities. In one embodiment, the recombinant VV comprise one or more variant VV proteins that have mutations at one or more neutralizing antibody epitopes, thereby conferring viral escape from the neutralizing antibodies. In another embodiment, the recombinant VV is resistant to complement-mediated neutralization due to the expression of a regulator of complement activation (e.g. CD55). In another embodiment, the recombinant VV has enhanced anti-tumor activities due to the expression of bi-specific antibodies co-targeting cancer cells and immune effector cells, or the expression of a polypeptide blocking the PD-1 pathway. The recombinant vaccinia virus virions can be used to treat cancer in a subject.

The present invention provides a method for treating or ameliorating cerebrovascular diseases in a subject by using peptides isolated from extracts from rabbit skin inflamed by vaccinia virus. The present invention also provides a peptide comprising an amino acid sequence having at least 70% identity to SEQ ID NO: 1, or variants, mutants, derivatives, or fragments thereof.

A process for preparing the modified surface glucoprotein gp160 of human acquired immune deficiency virus 1 in the cowpox virus system, the cowpox virus used to prepare the protein gp160, and the prepared protein gp160 are disclosed. Its advantages are high output and high purity.

The invention provides a genetically-modified vaccinia virus that is effective for the prevention or treatment of cancer. Specifically, the invention provides: a vaccinia virus containing two polynucleotides which are a polynucleotide that codes for IL-7 and a polynucleotide that codes for IL-12; a combination kit including two vaccinia viruses which are a vaccinia virus containing a polynucleotide that codes for IL-7 and a vaccinia virus containing a polynucleotide that codes for IL-12; and a combination use of the two vaccinia viruses.

The invention relates in various aspects to a synthetic chimeric vaccinia virus or compositions comprising such viruses, and the development and use of systems and methods for producing such synthetic chimeric vaccinia viruses. The synthetic chimeric vaccinia viruses are well suited, among others, as virus vaccines or to generate an oncolytic response and pharmaceutical formulations.

The present invention relates to the therapeutic use of extract from rabbit skin inflamed by vaccinia virus. More specifically, the present invention relates to the use of the extract for preventing or treating cancer, or the use of the extract for stimulating secretion of cytokine by somatic cells in a patient. In addition, the present invention also relates to a drug combination comprising the extract as the first anticancer agent and a second anticancer agent as well as its use for preventing or treating cancer.

The invention relates to a vaccinia virus capping enzyme mutant, a recombinant vector, a recombinant engineering bacterium and application of the vaccinia virus capping enzyme mutant. The vaccinia virus capping enzyme mutant comprises: (a) a polypeptide formed by deleting, replacing or adding one or more amino acids to an amino acid sequence as shown in SEQ ID No.2; or (b) a polypeptide having at least 90% of homology with the polypeptide composed of the amino acid sequence as shown in SEQ ID No.2. The half-life period of the vaccinia virus capping enzyme mutant at 45 DEG C is 35 min or above and is higher than that of a wild type vaccinia virus capping enzyme mutant, and when mRNA is capped at a high temperature, the vaccinia virus capping enzyme mutant still shows excellent catalytic activity and can play an important role in the fields of clinical medicine, influenza vaccines, tumor vaccines, biological pharmacy and the like.

The disclosure relates to modified vaccinia virus vectors derived from the Copenhagen strain of vaccinia virus, as well as methods of using the same for the treatment of various cancers. The disclosure provides modified Copenhagen-derived vaccinia virus vectors that exhibit various beneficial therapeutic activities, including enhanced oncolytic activity, spread of infection, immune evasion, tumorpersistence, capacity for incorporation of exogenous DNA sequences, amenability for large scale manufacturing, and safety.

An inhibiting or alleviating agent for amyloid beta (Aβ)-induced damage in hippocampus including an extract from inflamed tissues inoculated with vaccinia virus. Also relates to the use of the extract from inflamed tissues inoculated with vaccinia virus in the preparation of an agent for inhibiting or alleviating Aβ-induced damage in hippocampus.