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Avaren-Fc, A Novel Immunotherapeutic, Recruits Nk Cells In B16f10 Melanoma Tumor Tissue, Sreevatsa Vemuri, Katarina Mayer, Nobuyuki Matoba Jan 2024

Avaren-Fc, A Novel Immunotherapeutic, Recruits Nk Cells In B16f10 Melanoma Tumor Tissue, Sreevatsa Vemuri, Katarina Mayer, Nobuyuki Matoba

Posters-at-the-Capitol

Melanoma is the fifth most common cancer in the US, with limited effective immunotherapeutic options available for patients. Avaren-Fc (AvFc) is a novel experimental immunotherapeutic agent with a unique “lectibody” property. It is capable of targeting cancer cells through the selective recognition of high mannose glycans, which are aberrantly overrepresented on the surface of malignant cells. AvFc can interact with circulating effector immune cells equipped with Fc receptors, such as natural killer (NK) cells to induce antibody-dependent cell-mediated cytotoxicity (ADCC) and kill cancer cells. Previous work has shown that AvFc effectively induces ADCC activity against B16F10 cancer cells in vitro …


Uncovering The Role Of Cancer Associated Fibroblasts In Tumor Immunosuppression, Kamal Amirneni, Kavitha Yaddanapudi Jan 2023

Uncovering The Role Of Cancer Associated Fibroblasts In Tumor Immunosuppression, Kamal Amirneni, Kavitha Yaddanapudi

Posters-at-the-Capitol

Current advances in cancer immunotherapy are hindered by the immunosuppressive nature of the tumor microenvironment (TME). Cancer-associated fibroblasts (CAFs) are a key component of the TME that contribute to suppressing the immune response. Chemokines and cytokines released by CAFs, such as IL-6, attract circulating monocytes which are converted into myeloid-derived suppressor cells (MDSCs). MDSCs suppress T-cells and natural killer cell proliferation which inactivates the immune response and deters immunotherapy. Both Prostaglandin E2 (PGE2) and granulocyte-macrophage colony-stimulating factor (GM-CSF) have been implicated in the CAF immunosuppressive pathway, but a causal link has yet to be established. We hypothesized …