Physical Disruption of Solid Tumors by Immunostimulatory Microrobots Enhances Antitumor Immunity.

ABSTRACT: The combination of immunotherapy with other forms of treatment is an emerging strategy for boosting antitumor responses. By combining multiple modes of action, these combinatorial therapies can improve clinical outcomes through unique synergisms. Here, a microrobot-based strategy that integrates tumor tissue disruption with biological stimulation is shown for cancer immunotherapy. The microrobot is fabricated by loading bacterial outer membrane vesicles onto a self-propelling micromotor, which can react with water to generate a propulsion force. When administered intratumorally to a solid tumor, the disruption of the local tumor tissue coupled with the delivery of an immunostimulatory payload leads to complete tumor regression. Additionally, treatment of the primary tumor results in the si

SUBMITTER: Zhou J 

PROVIDER: S-EPMC8975929 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature