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CRISPR Screen in Primary NK Cells Identifies Targets to Strengthen CAR NK Cancer Therapies

The peer-reviewed Cancer Cell study outlines a preclinical roadmap for engineering CAR NK cells that resist tumor suppression.

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Overview

  • MD Anderson researchers created PreCiSE, a genome-wide CRISPR discovery platform tailored to primary human natural killer cells.
  • The screen highlighted three validated regulators—MED12, ARIH2, and CCNC—whose disruption enhanced antitumor activity in NK and CAR NK cells.
  • Editing these targets improved metabolic fitness, increased pro-inflammatory cytokine production, and expanded cytotoxic NK subsets in models resistant to treatment.
  • Top hits were validated in vivo across multiple tumor models under defined immune-suppressive stressors, supporting translational potential.
  • Pathway analysis shows MED12 and CCNC intersect known T-cell biology while ARIH2 appears NK-specific, guiding design choices for next-generation CAR NK therapies.