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CAR‐NK cells from engineered pluripotent stem cells: Off‐the‐shelf therapeutics for all patients


ABSTRACT: Abstract Clinical success of adoptive cell therapy with chimeric antigen receptor (CAR) T cells for treating hematological malignancies has revolutionized the field of cellular immunotherapy. However, due to the nature of utilizing autologous T cells, affordability and availability are major hurdles, in addition to scientific challenges relating to CAR‐T therapy optimization. Natural killer (NK) cell is a specialized immune effector cell type that recognizes and kills targets without human leukocyte antigen (HLA) restriction and prior sensitization. CAR‐NK cells do not cause graft vs host disease and can be obtained from unrelated donors as well as pluripotent stem cells (PSC), representing an ideal off‐the‐shelf therapeutics readily available for patients. Furthermore, unlike cytotoxic T cells, NK cells specifically target and eliminate cancer stem cells, which are the cells causing relapse and metastasis. PSCs can be genetically manipulated and engineered with CARs at the pluripotent stage, which allows the establishment of permanent, stable, and clonal PSC‐CAR lines for the manufacture of unlimited homogenous CAR‐NK cells. Multiple master PSC‐CAR cell banks targeting a variety of antigens for cancer, viral infection, and autoimmune diseases provide inexhaustible cell sources for all patients. Development of a next‐generation 3D bioreactor platform for PSC expansion and NK cell production overcomes major barriers related to cost and scalability for CAR‐NK product. The establishment of a master pluripotent stem cell (PSC)‐CAR cell bank targeting a variety of specific antigens will provide inexhaustible cell sources for the manufacture of truly off‐the‐shelf CAR‐NK cells for all patients of cancer, infectious, and autoimmune diseases.

SUBMITTER: Lu S 

PROVIDER: S-EPMC8560199 | biostudies-literature |

REPOSITORIES: biostudies-literature

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