Provecs Medical Gmbh

Universitatsklinikum Hamburg-Eppendorf

Frank Schnieders

Andrea Miegel

Carolin Biermann-Fleischhauer

Reinhard Wähler

A method of treating cancer, a viral infection and/or an immune system disorder, comprising administering to a subject in need thereof a therapeutically effective amount of a pharmaceutical composition comprising a vector, wherein the vector comprises (a) nucleic acid sequences encoding 4-1BB ligand (4-1BBL), single chain IL-12 (scIL-12) and IL-2, and (b) at least one regulatory nucleic acid sequence providing for an increased expression level of 4-1BBL as compared to the expression levels of scIL-12 and IL-2, and other related methods.

Immunostimulating vector system

Provided is a novel vector for immunostimulation and methods of using same in immunotherapy, in particular cancer immunotherapy. The novel vector comprises nucleic acid sequences encoding 4-1BB ligand (4-1BBL, CD137 ligand), single chain IL-12 (sc IL-12) and IL-2, wherein the vector provides for an increased expression of 4-1BBL as compared to the expression levels of sc IL-12 and IL-2. Specifically, the nucleic acid sequences encoding 4-1BBL, sc IL-12 and IL-2 are organized in the vector in 5' to 3&#x2032; orientation in a sequential order 1, 2, 3, with the proviso that the gene encoding sc IL-12 is not at position 1. Embodiments of the present disclosure include virus particles comprising the novel vector as well as cancer or immune cells transduced or transfected with the novel vector.

The invention relates to viral vectors comprising nucleic acid sequences coding for single chain interleukin-12 (single chain IL-12 or scIL12) and a costimulator protein, and to the use of vectors for gene therapy, especially for the treatment of tumors. The invention further relates to adenoviral vectors containing nucleic acid sequences having a sequence homology of at least 90% in relation to the sequence displayed in FIGS.and(IL-12), in FIG.(4-1BB ligand) and in FIG.(IL-2) and optionally also one of the sequences displayed in FIG.A (B7-1) orB (B7-2).

Growing community of inventors

Hamburg, Germany

Frank Schnieders