School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China.
CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine and i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China.
Nano Lett. 2024 Mar 20;24(11):3421-3431. doi: 10.1021/acs.nanolett.4c00002. Epub 2024 Feb 20.
Natural killer (NK) cell-based adoptive immunotherapy has demonstrated encouraging therapeutic effects in clinical trials for hematological cancers. However, the effectiveness of treatment for solid tumors remains a challenge due to insufficient recruitment and infiltration of NK cells into tumor tissues. Herein, a programmed nanoremodeler (DAS@P/H/pp) is designed to remodel dense physical stromal barriers and for dysregulation of the chemokine of the tumor environment to enhance the recruitment and infiltration of NK cells in tumors. The DAS@P/H/pp is triggered by the acidic tumor environment, resulting in charge reversal and subsequent hyaluronidase (HAase) release. HAase effectively degrades the extracellular matrix, promoting the delivery of immunoregulatory molecules and chemotherapy drugs into deep tumor tissues. In mouse models of pancreatic cancer, this nanomediated strategy for the programmed remodeling of the tumor microenvironment significantly boosts the recruitment of NK92 cells and their tumor cell-killing capabilities under the supervision of multiplexed near-infrared-II fluorescence.
基于自然杀伤 (NK) 细胞的过继免疫疗法在血液系统恶性肿瘤的临床试验中显示出令人鼓舞的治疗效果。然而,由于 NK 细胞在肿瘤组织中的募集和浸润不足,其对实体瘤的治疗效果仍然是一个挑战。在此,设计了一种可编程纳米重塑剂 (DAS@P/H/pp) 来重塑致密的物理基质屏障,并调节肿瘤微环境中的趋化因子,以增强 NK 细胞在肿瘤中的募集和浸润。DAS@P/H/pp 被酸性肿瘤微环境触发,导致电荷反转和随后的透明质酸酶 (HAase) 的释放。HAase 可有效降解细胞外基质,促进免疫调节分子和化疗药物递送至深层肿瘤组织。在胰腺癌小鼠模型中,这种可编程重塑肿瘤微环境的纳米介导策略在多重近红外-II 荧光的监测下,显著增强了 NK92 细胞的募集及其对肿瘤细胞的杀伤能力。
J Immunother Cancer. 2025-7-25
J Immunother Cancer. 2025-7-23
Immunotherapy. 2025-2
J Transl Med. 2025-7-1
Front Immunol. 2025-7-1
Essays Biochem. 2025-5-26
Mol Biomed. 2024-12-16