The production of gene transfer vectors that have been designed as replication deficient constructs can be inefficient, thus limiting their broad use in medicine. The present invention provides a solution to this problem. It describes how the production efficiencies can be enhanced for gene transfer vectors that are produced by the transfer of DNA and RNA into production cells. The present invention lies m the use of cell cycle control in optimizing the production of gene transfer vectors. The subject of this patent is the modification of cell growth and physiology to enhance the efficiency of vector production. An example is given for the effect of certain media components on the cell cycle and production rate of a fully deleted helper virus independent adenoviral vector. Other applications of this technology are listed.

The invention relates to a recombinant adenovirus nucleic acid wherein the gene encoding protein V and/or the gene encoding protein VII is placed under control of a heterologous promoter, to a recombinant adenovirus nucleic acid wherein the adenoviral nucleotide sequence is mutated in such a way that it is no longer capable of producing one or more of the coat proteins, to cellular vesicles filled with such adenoviral material, cells provided with such adenoviral material and to methods and use thereof.

Provided is a method for preparing an adenovirus vector vaccine by means of a perfusion culture process. The method comprises a step of culturing adenovirus host cells, and in particular a step of adjusting the perfusion rate by means of at least two stages according to cell density. The method increases the single cell yield of a virus after infection and the specific activity of a virus harvest liquid while achieving high-density growth of adenovirus host cells.

The present disclosure describes methods, compositions, and kits related to the combination of a TLR7 modulating compound and an HIV vaccine. The combination can be used in a method of treating or preventing an HIV infection in a human.

Provided are a human type 55 replication defective adenovirus vector, a method for preparing the same and uses thereof. The human type 55 replication defective adenovirus vector is prepared by the following method: knocking out E1 and E3 genes from Ad55, substituting the open reading frame 6 or the open reading frames 2, 3, 4, 6, and 6/7 of E4 gene in Ad55 genome with the corresponding open reading frames of Ad5 genome. In addition, an exogenous gene expression cassette may also be integrated into the E1 gene region of Ad55.

The present invention provides a human type 14 replication defective adenovirus vector, and a preparation method for the same, the method comprising: constructing an Ad14 genome into a plasmid, with knocking out E3 and E1 genes of the Ad14 genome, and replacing open reading frames 2, 3, 4, 6, and 6/7 of an E4 gene of the Ad14 genome with corresponding reading frames of an Ad5 genome. The human type 14 replication defective adenovirus vector according to the present invention is potentially applicable in the research and development of a vaccine and a drug against human type 14 adenovirus infection, applicable as a gene vector in the research and development of other pathogen vaccines, and applicable in a biological report and trace system, etc.

The disclosure relates to the use of oncolytic adenoviruses for the treatment of pediatric brain tumors, such as, for example, diffuse intrinsic pontine glioma (DIPG).

Methods and compositions for constructing and producing recombinant adenovirus-based vector vaccines are provided. In particular aspects, there are be provided compositions and methods involving adenovirus vectors comprising genes for target antigens, such as pro state-specific antigen (PSA), pro state-specific membrane antigen (PSMA), MUC1, CEA, and/or Brachyury, and costimulatory molecules for use in treatment methods that generate highly reactive anti-tumor immune responses and that allows for multiple vaccinations in individuals with preexisting immunity to adenovirus.

Provided are a human type 55 replication defective adenovirus vector, a method for preparing the same and uses thereof. The human type 55 replication defective adenovirus vector is prepared by the following method: knocking out E1 and E3 genes from Ad55, substituting the open reading frame 6 or the open reading frames 2, 3, 4, 6, and 6/7 of E4 gene in Ad55 genome with the corresponding open reading frames of Ad5 genome. In addition, an exogenous gene expression cassette may also be integrated into the E1 gene region of Ad55.

An immunotherapeutic composition is contemplated that comprises subject-derived peripheral blood mononuclear cells (PBMC) and at least one recombinant adenovirus subtype 5 (Ad5) comprising a deletion in an E1 gene region, a deletion in an E2b gene region, and a nucleic acid sequence encoding a peptide antigen, wherein the PBMC are exposed ex-vivo to the at least one Ad5 vector. Advantageously, the same PBMC composition may also be used to prepare modified NK cells, and especially modified NK include CIML NK cells, CENK cells and mCENK cells.