Overview of Strategies to Improve Therapy against Tumors Using Natural Killer Cell

Figure 3

Strategies to improve NK cell infiltration in target sites. (a) Focused ultrasound improved NK cell infiltration in tumor sites. (b) Transcatheter intra-arterial local delivery of chemoattractant encapsulated in polymeric microspheres (reproduced from Ref. [93]). (c) Using magnets can attract NK cells which has uptake Fe₃O₄@PDA nanoparticles.

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