The invention provides in part methods of treating cancers of a specific organ or tissue by administering a composition that is antigenically specific for one or more microbes that are pathogenic in the specific organ or tissue in which the cancer is situated.

The invention provides compositions and methods for treating or preventing hearing loss in a subject. The method comprises administering to the subject in need thereof, at least Myc or an agent that increases the expression of Myc in an inner ear organ, or associated neural structures, of the subject so as to treat or prevent the hearing loss.

A fast and accurate three-plasmid oncolytic adenovirus recombinant packaging system Ad5MixPlus and an application thereof are provided. The system is composed of three adenovirus recombinant plasmids. The core technology of the system is that two sets of different site recombination sequences are skillfully loaded on a first 5-type adenovirus right arm backbone plasmid large vector, then two small shuttle plasmids respectively provide a right arm-modified Hexon/E3/Fiber sequence and an E1a expression cassette controlled by a left arm tumor-specific promoter, and the difficulties and obstacles to the modification of the adenovirus backbone large vector are overcome. After two rounds of site-specific recombination, the ideal oncolytic adenovirus is packaged accurately and quickly.

Provided is an oncolytic virus expressing a PD-1 binding protein, i.e., an oncolytic adenovirus comprising a fusion protein expressing a PD-1 single-chain antibody.

Modified E1a regulatory sequences are provided, wherein at least one Pea3 binding site, or a functional portion thereof, is deleted. Also provided are modified E1a sequences that selectively express particular isoforms. Also provided is an E1b-19K clone insertion site. These modified sequences can be used individually, or in combination with one another, to provide tumor-selective expression of proteins.

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.

The present invention relates to a composition for enhancing oncolytic virus activity which comprises nc886, and a composition for enhancing virus production which comprises the same.

A method of treating a human patient comprising systemically administering multiple doses of a parenteral formulation of a replication capable oncolytic adenovirus of subgroup B in a single treatment cycle, wherein the total dose given in each dose is in the range of 1×10.sup.10 to 1×10.sup.14 viral particles, and wherein each dose of virus is administered over a period of 1 to 90 minutes, for example at a rate of viral particle delivery in the range of 2×10.sup.10 particles per minute to 2×10.sup.12 particles per minute. Also provided are formulations of the oncolytic adenoviruses and combination therapies of the viruses and formulations with other therapeutic agents.

The present invention relates to a pH-sensitive and bioreducible polymer-virus complex which can destroy tumor cells more effectively by increasing the efficiency of virus transduction, to a pH-sensitive and bioreducible polymer, and to a pharmaceutical composition containing the polymer-virus complex.

Provided herein are AAV8 mutant capsids and rAAV comprising the same. In one embodiment, vectors employing the AAV8 mutant capsid show increased transduction in a selected tissue as compared to AAV8.