MODULATION OF TUMOR MICROENVIRONMENT TO AUGMENT EFFICACY OF IMMUNOTHERAPY

    公开(公告)号:US20240165204A1

    公开(公告)日:2024-05-23

    申请号:US18516884

    申请日:2023-11-21

    摘要: Disclosed are compositions of matter and therapeutic means for increasing efficacy of immunotherapy such as Tumor Infiltrating Lymphocytes (TILs), Chimeric Antigen Receptor (CAR)-T cells, and other cellular therapies in solid tumors. In one embodiment agents capable of increasing tumor immunogenicity and/or antigen presentation by modulation of tumor stromal cells such as monocytes and pericytes are administered prior to providing immunotherapy in a patient. In some embodiments administration of interleukin-33 together with one or more antioxidants is provided as a means of stimulating expression of HLA and TAP proteins without inducing significant inflammatory response and myeloid derived suppressor cell activation in cancer associated monocytes. In other embodiments the use of histone deacetylase (HDAC) inhibitors together with interferon alpha is disclosed as a means of stimulating the expression of immunogenic molecules on monocytes to increase immunotherapy cell activity.

    ANTIGEN SPECIFIC MRNA CELLULAR CANCER VACCINES

    公开(公告)号:US20170246207A1

    公开(公告)日:2017-08-31

    申请号:US15162370

    申请日:2016-05-23

    IPC分类号: A61K35/15

    CPC分类号: A61K35/15 A61K38/10 A61K38/16

    摘要: Disclosed are antigen specific cancer vaccines in which immunogenic epitopes are produced intracellularly by administration of modified mRNA encoding said immunogenic epitopes. In one embodiment of the invention, said modified mRNA encodes peptides derived from the protein survivin. By directly inducing gene expression of the antigens to which an immune response is desired, immunogenic peptides are generated intracellularly, thus allowing for a wider repertoire of epitopes to be presented to the adaptive immune system, which augments likelihood of successful induction of immunity.

    DUAL CHECKPOINT INHIBITOR APTAMER BASED THERAPEUTICS

    公开(公告)号:US20240093205A1

    公开(公告)日:2024-03-21

    申请号:US18470300

    申请日:2023-09-19

    IPC分类号: C12N15/115

    摘要: Disclosed are aptamers designed to bind immunological checkpoint molecules while concurrently suppressing tumor associated gene expression through delivery of DNA molecules encoding short hairpin DNA. In one embodiment the invention provides an aptamer capable of binding PD-1 and/or PD-1 ligand while concurrently possessing ability to induce RNA interference to one more multiple other immune inhibitory and/or oncogenesis related genes. In one embodiment such a dual-targeting aptamer is utilized to induce systemic tumor abscopal effect.

    AUGMENTATION OF SURVIVIN MODIFIED MRNA VACCINE EFFICACY USING DENDRITIC CELLS

    公开(公告)号:US20240024443A1

    公开(公告)日:2024-01-25

    申请号:US18358432

    申请日:2023-07-25

    IPC分类号: A61K39/00

    摘要: Disclosed are methods, and compositions useful for stimulation of immunity towards cancer by utilizing dendritic cells and products therefrom that have been stimulated and/or incorporated mRNA encoding survivin and/or related gene sequences, defined herein as “survivin modified mRNA”. In one embodiment dendritic cells generated from allogeneic “off the shelf” sources are transfected with survivin modified mRNA and the cells are administered in an immunogenic manner. In some embodiments transfected dendritic cells are induced to undergo immunogenic cell death ex vivo subsequently to which they are used as immunogenic stimuli. In other embodiments preparation of the injection site is performed prior to administration of dendritic cells that have been transfected with survivin modified mRNA by pre-administration of agents increasing the number of local dendritic cells in the skin. In embodiments in vivo, transfection of survivin modified mRNA is performed by administration of dendritic cell accumulating agents followed by in vivo transfection.