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<p>Tumor-infiltrating lymphocyte (TIL) therapy is a type of personalized immunotherapy that harnesses the antitumor activity of endogenous immune cells. While TIL therapy has been in clinical investigation since the 1980s and shown promising signs of clinical activity in immunogenic solid tumors such as melanoma, more recent improvements in product manufacturing and characterization have demonstrated consistent efficacy and the feasibility of administering TIL therapy on a larger scale. Lifileucel was granted accelerated approval by the US Food and Drug Administration in February 2024 for the treatment of advanced melanoma, marking the first regulatory approval of a TIL product, and also the first approval of cellular therapy for the treatment of any solid tumor. Despite this landmark event, questions remain surrounding optimal TIL timing, sequencing with other treatment modalities, and the optimal TIL repertoire and phenotype. Innovations in cellular engineering are expected to improve the antitumor efficacy and safety profile of TIL therapy, advance our understanding of how best to deliver TIL therapy, and provide hope for paradigm-shifting approaches in the treatment of advanced melanoma as well as for other solid tumors.</p>

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Tumor-Infiltrating Lymphocyte Therapy for the Treatment of Metastatic Melanoma

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年6月23日

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  • Katy K. Tsai,
  • Krishna V. Komanduri

摘要

Tumor-infiltrating lymphocyte (TIL) therapy is a type of personalized immunotherapy that harnesses the antitumor activity of endogenous immune cells. While TIL therapy has been in clinical investigation since the 1980s and shown promising signs of clinical activity in immunogenic solid tumors such as melanoma, more recent improvements in product manufacturing and characterization have demonstrated consistent efficacy and the feasibility of administering TIL therapy on a larger scale. Lifileucel was granted accelerated approval by the US Food and Drug Administration in February 2024 for the treatment of advanced melanoma, marking the first regulatory approval of a TIL product, and also the first approval of cellular therapy for the treatment of any solid tumor. Despite this landmark event, questions remain surrounding optimal TIL timing, sequencing with other treatment modalities, and the optimal TIL repertoire and phenotype. Innovations in cellular engineering are expected to improve the antitumor efficacy and safety profile of TIL therapy, advance our understanding of how best to deliver TIL therapy, and provide hope for paradigm-shifting approaches in the treatment of advanced melanoma as well as for other solid tumors.