Abstract

Natural Killer (NK) cells, long recognized as pivotal components of the innate immune system, have recently emerged as versatile and adaptive players in the immune landscape. Traditionally considered devoid of memory-like features, recent research challenges this notion, uncovering the adaptive capabilities of NK cells. This abstract explores the multifaceted nature of NK cells, highlighting their diverse functions and adaptability in different immunological contexts. The basis of NK cell functionality lies in their rapid identification and elimination of infected or abnormal cells, constituting the frontline defense against diverse threats. Contrary to conventional belief, recent studies reveal that NK cells exhibit memory-like responses, suggesting a level of adaptability previously associated with the adaptive immune system. This newfound aspect adds an intriguing layer to the traditional understanding of NK cells as innate immune effectors.