 This study proposes a novel approach to treating solid tumors with large burdens. The researchers developed a new drug delivery system called PLTM at P, which combines the advantages of platelets and light, sensitive polymer particles. This system was tested in mouse models and found to be highly effective at reducing tumor size. Additionally, the researchers also used the system in combination with an immune checkpoint inhibitor, which further improved the efficacy of the treatment. This article was authored by Jun Dai, Meng Wu, Yuting Su, and others.