NIR light-driven transformable liquid metal-based nanovaccines restrain postoperative colorectal cancer recurrence

NIR light-driven transformable liquid metal-based nanovaccines restrain postoperative colorectal cancer recurrence

Cancer vaccines mount specific immune memory responses and hold great potential in suppressing postoperative colorectal cancer (CRC) recurrence. However, undesired lymph node trafficking and antigen cross-presentation hamper clinical translation of nanovaccines. Here, we propose a controllable trans...

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Bibliographic Details
Main Authors: Zheng Dai, Feng Liu, Miaodeng Liu, Yuqi Song, Hongyan Zhang, Cheng Zhou, Wenyu Liu, Xiaoqiong Li, Guobin Wang, Lin Wang, Zheng Wang
Format: Article
Language:English
Published: KeAi Communications Co., Ltd. 2025-09-01
Series:Bioactive Materials
Subjects:
Colorectal cancer
Postoperative recurrence
Liquid metal
Transformable nanovaccine
Immunotherapy
Online Access:http://www.sciencedirect.com/science/article/pii/S2452199X25002737
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Summary:Cancer vaccines mount specific immune memory responses and hold great potential in suppressing postoperative colorectal cancer (CRC) recurrence. However, undesired lymph node trafficking and antigen cross-presentation hamper clinical translation of nanovaccines. Here, we propose a controllable transformable nanovaccine grounded on thermal fusion feature of liquid metal (LM) nanoparticles against postoperative CRC recurrence. After draining to lymph nodes, LM-based nanovaccines (LMVs) aggregate and transform from spheres to fusiform sharp under NIR irradiation, conducive to cytoplasmic delivery of LMVs and subsequent antigen cross-presentation. Benefitting from the morphology transformation, LMVs prolong the retention of loaded vaccine molecules in lymph nodes, resulting in satisfactory dendritic cell (DC) recognition and maturation. Such dual effects of transformable LMVs efficiently activate DCs and cytotoxic CD8+ T cells, mediating strong systemic immune responses against local recurrence. Moreover, the transformable LMVs can induce potent specific immune memory, which is pivotal for eradicating metachronous liver and lung metastasis. This study provides a newly NIR light-regulated postoperative CRC prevention approach.
ISSN:2452-199X

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