Patents Assigned to Vigene Biosciences, Inc.
  • Patent number: 11129890
    Abstract: The present invention is directed to recombinant lentiviral particles that array the SARS-CoV-2 spike (S) protein on their surface (“SARS-CoV-2 S Protein Lentiviral Particles”), and that optionally comprise an additional copy of a polynucleotide encoding the SARS-CoV-2 spike (S) protein in their viral genome, and to methods for the production of such lentiviral particles. The invention particularly pertains to such SARS-CoV-2 S Protein Lentiviral Particles that have been engineered to be incapable of mediating the integration of their lentiviral genome into the chromosomes of infected cells and/or to be incapable of mediating the reverse transcription of their lentiviral genome. The present invention is also directed to “SARS-CoV-2 S Protein Lentiviral Vaccine” pharmaceutical compositions that comprise such SARS-CoV-2 S Protein Lentiviral Particles.
    Type: Grant
    Filed: May 19, 2020
    Date of Patent: September 28, 2021
    Assignee: Vigene Biosciences, Inc.
    Inventor: Zairen Sun
  • Patent number: 11001859
    Abstract: The present invention is directed to recombinantly-modified adeno-associated virus (AAV) helper vectors that are capable of increasing the packaging efficiency of recombinantly-modified adeno-associated virus (rAAV) and their use to improve the packaging efficiency of such rAAV. The present invention is particularly directed to recombinantly-modified adeno-associated virus (AAV) helper vectors that have been further modified to replace (or augment) the P5 and/or P40 promoter sequences that are natively associated with the Rep proteins encoded by such rAAV with AAV P5 and/or P40 promoters that are associated with the Rep proteins of an rAAV of different serotype. The use of such substitute or additional promoter sequences causes increased production of recombinantly-modified adeno-associated virus.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: May 11, 2021
    Assignee: Vigene Biosciences, Inc.
    Inventor: Qizhao Wang
  • Publication number: 20210017538
    Abstract: The present invention is directed to recombinantly-modified adeno-associated virus (AAV) helper vectors that are capable of increasing the packaging efficiency of recombinantly-modified adeno-associated virus (rAAV) and their use to improve the packaging efficiency of such rAAV. The present invention is particularly directed to recombinantly-modified adeno-associated virus (AAV) helper vectors that have been further modified to replace (or augment) the P5 and/or P40 promoter sequences that are natively associated with the Rep proteins encoded by such rAAV with AAV P5 and/or P40 promoters that are associated with the Rep proteins of an rAAV of different serotype. The use of such substitute or additional promoter sequences causes increased production of recombinantly-modified adeno-associated virus.
    Type: Application
    Filed: December 6, 2019
    Publication date: January 21, 2021
    Applicant: Vigene Biosciences Inc.
    Inventor: Qizhao Wang
  • Patent number: 10801042
    Abstract: The present invention is directed to methods for increasing the efficiencies with which recombinant adeno-associated virus (rAAV) are packaged, so as to increase their production titers. More specifically, the invention relates to a method for increasing the production titer of rAAV by transfected cells by increasing the ionic strength of the cell culture media through the administration of additional ions.
    Type: Grant
    Filed: July 15, 2019
    Date of Patent: October 13, 2020
    Assignee: Vigene Biosciences, Inc.
    Inventor: Qizhao Wang
  • Patent number: 10653731
    Abstract: The present invention is directed to recombinantly-modified adeno-associated virus (rAAV) having improved packaging efficiency, pharmaceutical compositions comprising such rAAV, and methods for their production and use. The present invention is particularly directed to recombinantly-modified adeno-associated virus (rAAV) that have been further modified to comprise Cis-Elements, including replication origins, promoters and enhancers, that are capable of regulating the replication of an rAAV genome and that improve rAAV replication. Preferably, such Cis-Elements are provided within domains of the rAAV that precede and/or follow the 5? and/or 3? inverted terminal repeated sequences (ITR) of an rAAV.
    Type: Grant
    Filed: July 15, 2019
    Date of Patent: May 19, 2020
    Assignee: Vigene Biosciences Inc.
    Inventor: Qizhao Wang
  • Patent number: 10557149
    Abstract: The present invention is directed to recombinantly-modified adeno-associated virus (AAV) helper vectors that are capable of increasing the packaging efficiency of recombinantly-modified adeno-associated virus (rAAV) and their use to improve the packaging efficiency of such rAAV. The present invention is particularly directed to recombinantly-modified adeno-associated virus (AAV) helper vectors that have been further modified to replace (or augment) the P5 and/or P40 promoter sequences that are natively associated with the Rep proteins encoded by such rAAV with AAV P5 and/or P40 promoters that are associated with the Rep proteins of an rAAV of different serotype. The use of such substitute or additional promoter sequences causes increased production of recombinantly-modified adeno-associated virus.
    Type: Grant
    Filed: July 15, 2019
    Date of Patent: February 11, 2020
    Assignee: Vigene Biosciences, Inc.
    Inventor: Qizhao Wang
  • Publication number: 20140142045
    Abstract: The present invention provides the use of a peptide comprising an amino acid sequence of SEQ ID NO:3, or the encoding nucleic acid thereof, for manufacturing medicament for treatment of diseases associated with increased NF-?B activity. The peptide can interact with IKB and influence phosphorylation of IKB in the tyrosine at position 42, thereby inhibiting the signal pathway of NF-?B.
    Type: Application
    Filed: April 25, 2011
    Publication date: May 22, 2014
    Applicant: Shandong Vigene Biosciences, Inc.
    Inventor: Wenbo Li