Expansion strategies for Vδ2 γδT cells in cancer immunotherapy: Activation, cytokines, and culture conditions

The γδT cells are an emerging class of immune effectors with potent antitumor activity, bridging innate and adaptive immunity. Their unique ability to recognise stress-induced ligands independently of major histocompatibility complex restriction makes them attractive candidates for cancer immunotherapy. However, the clinical application of γδT cells requires efficient <i>in vitro</i> expansion strategies to generate large numbers of functional cells. This mini-review explores the latest advancements in γδT cell expansion protocols, focusing on key activation stimuli, cytokine support, and culture conditions that optimise proliferation and cytotoxicity.