Ultrasound-Stimulated Microbubbles Cavitation (USMC) Enhances Anti-Tumor Efficacy of PD-L1 Antibody Therapy

This abstract presents a study examining the combined anti-tumor efficacy of ultrasound-stimulated microbubbles cavitation (USMC) and PD-L1 antibody therapy. The research, conducted on tumor-bearing mice, divided participants into four groups: Control, USMC, anti-PD-L1, and USMC+anti-PD-L1. The study revealed that the combined treatment yielded superior tumor growth inhibition and prolonged survival compared to the individual therapies. The synergistic mechanisms behind the combination therapy were investigated through four key aspects: increased PD-L1 antibody delivery within tumors, promotion of tumor vascular normalization, enhancement of the immune microenvironment, and reduction of tumor hypoxia. The findings indicate that the perfusion enhancement effect generated by USMC could serve as an effective approach for potentiating PD-L1 antibody-based tumor treatment. While the abstract effectively outlines the study's methods, results, and conclusion, it could benefit from a more concise and impactful presentation of its significance.