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Applied Materials Today · 2020 · IF 8.352

Water powered and anti-CD3 loaded mg micromotor for t cell activation

Zhen Wang,Shuanghu Wang,Kun Liu,Dongmei Fu,Yicheng Ye,Junbin Gao,Lu Liu,Daniela A. Wilson,Yingfeng Tu,Fei Peng

Here we present an anti-CD3 loaded PLGA/ALG/CHI Mg micromotor systems, with degradable constituents and Mg-water reaction propulsion, thus ensuring a superior biocompatibility. Porous hydrogel formed by ALG/CHI offers high capacity of antigen loading, along with biocompatibility. By efficient loading of anti-human CD3 as an antigen and activating the calcium ion channel of Jurkat T cell, vital for immunotherapy, the motor system extends the application scope of micro/nanomotor systems from cargo (drug) delivery to interaction with the biointerface and immune activity modulation.

研究领域: 生物医学工程 · 免疫学 · 材料科学

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Small · 2025 · IF 12.1

RNA-Seq Reveals the Mechanism of Synergistic Hydrogen-Chemotherapy Based on Active Magnesium Micromotors for Inhibiting Glioblastoma Recurrence by Modulating Tumor Microenvironment

Ruotian Zhang,Yanzhen Song,Jiawei Yao,Hanfeng Qin,Yicheng Ye,Junbin Gao,Cheng Zhang,Dayong Han,Ming Gao,Hao Chen,Xin Chen,Shiguang Zhao,Kun Liu,Yingfeng Tu,Zhili Xu

Postoperative recurrence of glioblastoma (GBM) is a key contributing factor to the unfavorable prognosis of patients. Chemotherapy has been extensively employed as a postoperative treatment for GBM; however, the produced drug resistance significantly undermines the chemotherapeutic efficacy. Herein, a multifunctional system based on magnesium micromotor (Mg-Motor-DOX) is designed and fabricated that can generate hydrogen gas in situ and actively deliver the chemotherapeutic drug doxorubicin (DOX). Utilizing a temperature-sensitive hydrogel, Mg-Motor-DOX is administrated in situ to the residual cavity of the tumor after subtotal GBM resection. The produced H 2 by the Mg-water reaction not only propels the motion of motors but also functions as an antioxidant to effectively alleviate the neuroinflammation caused by GBM resection. The H 2 bubbles create a pronounced vortex flow in situ, greatly enhancing the DOX penetration and the sensitivity of GBM cells to DOX. Therefore, synergistic hydrogen-chemotherapy significantly inhibits the recurrence of the in situ GBM model. RNA-Seq technology further elucidates the role of the strategy in modulating the tumor immune microenvironment via converting cold tumors into hot tumors, thereby establishing a theoretical foundation for the clinical implementation of synergistic hydrogen-chemotherapy.

研究领域: 生物医学工程 · 肿瘤学 · 分子生物学

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Water powered and anti-CD3 loaded mg micromotor for t cell activation

RNA-Seq Reveals the Mechanism of Synergistic Hydrogen-Chemotherapy Based on Active Magnesium Micromotors for Inhibiting Glioblastoma Recurrence by Modulating Tumor Microenvironment