“NantKwest’s transition from preclinical to clinical studies continues
to make significant progress,” said
Intra-Tumor Injection of CAR-Engineered NK Cells Induces Tumor Regression and Protection Against Tumor Re-Challenge
- Abstract #466, https://ash.confex.com/ash/2016/webprogram/Paper95676.html
Laurent Boissel, PhD, NantKwest, Woburn, MA
Sunday, December 4, 2016, 5:15 PM, Room 5AB
This poster will review the potential use of CD19.taNK cells to effectively kill cancer cells. In vivo preclinical studies of direct tumor injection of CD19.taNK cells induces significant tumor regression and significantly improved survival, with 75% of the mice showing complete tumor regression at day 32 (p<0.05). Upon re-challenge with A20 lymphoma cells, >80% mice remained free of tumor after 14 days.
NantKwest’s unique NK cell-based platform, with the capacity to grow active killer cells as a biological cancer therapy, has been designed to induce cell death against cancer or infected cells by three different modes of action: (1) Direct killing using activated NK cells (aNK) that release toxic granules directly into the cell through cell to cell contact; (2) Antibody-mediated killing using haNKs, which are NK cells engineered to incorporate a high affinity receptor that binds to an administered antibody, enhancing the cancer cell killing effect of that antibody; and (3) Targeted activated killing using taNKs, which are NK cells engineered to incorporate chimeric antigen receptors (CARs) to target tumor-specific antigens found on the surface of cancer cells.
Our aNK, haNK and taNK platform addresses certain limitations of T cell
therapies, including the reduction of risk of serious "cytokine storms"
reported after T cell therapy. As an “off-the-shelf” therapy,
By leveraging an integrated and extensive genomics and transcriptomics
discovery and development engine, together with a pipeline of multiple,
clinical-stage, immuno-oncology programs that include a Phase 2 trial
for a rare form of melanoma and the planned initiation of a clinical
trial of NK cells targeted to breast cancer, we believe
Jen Hodson, 562-397-3639