OBJECTIVES/GOALS: Natural killer (NK) cells are a potential cancer therapeutic but expanding NK cells efficiently in vitro is difficult. Natural killer cell deficiency (NKD). a primary immune deficiency affecting only NK cells. is caused by defects in several DNA replication proteins. https://www.ngetikin.com/flash-choice-1-Gallon-Roll-Cote-High-Performance-Moisture-Vapor-Barrier-Coating-and-Primer-limited-super/