摘要:
The present invention relates to a method for rapid generation of an infectious RNA virus that completely eliminates the need of constructing a full-length c DNA, which covers the entire viral genome, cloning and propagating such full length c DNA.
摘要:
The present invention is related to a live, attenuated virus composition comprising: one or more live, attenuated viruses; one or more albumins selected from the group consisting of lactalbumins and serum albumins, and trehalose, wherein the composition is capable of reducing the inactivation of the live, attenuated virus.
摘要:
The present invention provides a method to prepare purified enveloped (e.g., flavivirus) viral particle preparations employing ion exchange chromatography and tangential flow filtration.
摘要:
The present invention provides a method to prepare purified enveloped (e.g., flavivirus) viral particle preparations employing ion exchange chromatography and tangential flow filtration.
摘要:
The method described herein provides a novel platform utilizing yeast as a biological non-host system to express and assemble whole viruses for use as attenuated or killed vaccines.
摘要:
Disclosed herein are chimeric TBEV/DEN4 flaviviruses including a first nucleic acid molecule including a 5' non-coding region (NCR) from a DEN4 virus, a nucleic acid encoding a C protein and non-structural proteins from a DEN4 virus, and a 3' NCR from a DEN4 virus, wherein nonstructural protein NS4B includes a phenylalanine at amino acid position 112, nonstructural protein NS5 includes an alanine at amino acid position 654 and an alanine at amino acid position 655, and the 3' NCR includes a deletion of nucleotides 10478-10507. The chimeric construct also includes a second nucleic acid molecule, which is operably linked to the first nucleic acid molecule, encoding a prM protein and an E protein from a TBEV, wherein the E protein includes an amino acid substitution that differs from the wild type TBEV at amino acid position 315 and a tryptophan at amino acid position 240. Also disclosed are methods of eliciting an immune response using the disclosed TBEV/DEN4 chimeric flaviviruses and immunogenic compositions including the disclosed chimeric flaviviruses and a pharmaceutically acceptable carrier.
摘要:
Embodiments herein report methods, compositions and uses for inducing and/or accelerating viral growth. In certain embodiments, methods, compositions and uses generally related to copolymer compositions for inducing viral growth, reducing lag time and/or increasing viral plaque size. In other embodiments, methods, compositions and uses of copolymer compositions can be for inducing flaviviral growth, reducing lag in growth and/or increasing plaque size.
摘要:
The invention relates to methods for producing an active constituent of a pharmaceutical or a diagnostic agent, whereby (a) MDCK cells are infected with a virus, and (b) said MDCK cells are cultivated in a suspension culture on a technical scale and under conditions which enable viruses to multiply, the cultivation being carried out in a volume of at least 30 L. The invention also relates to methods for producing a pharmaceutical or a diagnostic agent, whereby an active constituent is produced according to one of the abovementioned methods and is mixed with a suitable adjuvant, auxiliary agent, buffer solution, diluting agent or pharmaceutical carrier.