The present invention is related to the use of a virus, preferably an adenovirus for reversing resistance in cells.

The invention provides methods of reducing or decreasing a size of a tumor or eliminating a tumor or inhibiting, decreasing, or reducing neo-vascularization or angiogenesis in a tumor in a patient by administering an adenovirus comprising a nucleic acid construct comprising a FAS-chimera gene operably linked to an endothelial cell-specific promoter. Also provided is a homogeneous population of an adenovirus comprising a FAS-chimera gene operably linked to an endothelial cell-specific promoter and its uses thereof.

The present disclosure provides therapeutic agents comprising oncolytic vaccinia viruses and NK cells, and uses thereof for preparation of drugs for treatment of tumors and/or cancers. The active ingredients of the therapeutic agents comprise an oncolytic vaccinia virus and NK cells, wherein the oncolytic vaccinia virus can selectively replicate in tumor cells.

The present invention provides methods for treating an individual having bladder cancer comprising intravesically administering to the individual an oncolytic virus. Also provided are pharmaceutical compositions and kits for treating bladder cancer.

Disclosed is a nanoparticle comprising an inner core comprising a virus; and an outer surface comprising a cellular membrane derived from a cell, and process of making thereof. The virus is an oncolytic virus and cellular membrane is derived from for example red blood cells.

The present disclosure relates to a group B adenovirus comprising a sequence of formula (I): 5′ITR-B1-BA-B2-BX-BB-BY-B3-3′ITR wherein: B1 is bond or comprises: E1A, E1B or E1A-E1B; BA comprises-E2B-L1-L2-L3-E2A-L4; B2 is a bond or comprises: E3; BX is a bond or a DNA sequence comprising: a restriction site, one or more transgenes or both; BB comprises L5; BY is a bond or a DNA sequence comprising: a restriction site, one or more transgenes or both; B3 is a bond or comprises: E4; wherein at least one of BX or BY is not a bond, pharmaceutical compositions comprising the same and use of the viruses and compositions in treatment, particularly in the treatment of cancer. The disclosure also extends to plasmids and processes employed to prepare the said viruses.

The present invention provides methods for treating an individual having bladder cancer comprising intravesically administering to the individual an oncolytic virus. Also provided are pharmaceutical compositions and kits for treating bladder cancer.

Novel nucleic acid sequences, vectors and adenoviral genomes are provided herein. Corresponding novel adenoviruses and genotypes and compositions are also provided. The novel nucleic acid sequences, vectors, genomes, adenoviruses, genotypes and compositions are useful in therapy. The novel nucleic acid sequences, vectors, genomes, adenoviruses, genotypes and compositions are particularly useful in treating or preventing cancer.

The present disclosure provides therapeutic agents and uses thereof for drugs for treatment of tumors and/or cancers. The active ingredients of the therapeutic agents comprise an oncolytic virus that selectively replicate in tumor cells and comprise NK cells.

The present invention relates to: a virus-containing pharmaceutical composition, which comprises, as an active ingredient, a virus for treating or preventing disease; and a preparation method therefor.