相关实验视频

Updated: Jun 3, 2025

Coculture Assays to Study Macrophage and Microglia Stimulation of Glioblastoma Invasion

Coculture Assays to Study Macrophage and Microglia Stimulation of Glioblastoma Invasion

Published on: October 20, 2016

与瘤相关的巨细胞纳米重编程器诱导"轮效应"来增强质母细胞瘤免疫疗法

Yang Wang^1,2, Guangzhe Li³, Jianlong Su²

¹Cancer Hospital of Dalian University of Technology, Dalian University of Technology, Shenyang, 110042, China.

Small (Weinheim an der Bergstrasse, Germany)

|January 11, 2025

概括

这项研究介绍了MG5-S-IMDQ,这是一种新的纳米疗法,可以在质母细胞瘤中重新编程免疫抑制M2-TAMs. 这种方法增强了抗瘤免疫力,并显示出治疗脑瘤的前景.

科学领域:

在瘤学瘤学.
免疫学免疫学免疫学
纳米技术纳米技术
生物医学工程生物医学工程

背景情况:

质母细胞瘤 (GBM) 是一种高度恶性脑瘤,预后不佳.
现有的免疫疗法通常对GBM无效,原因是高度免疫抑制的瘤微环境 (TME).
瘤相关的M2-表型巨细胞 (M2-TAMs) 在GBM免疫抑制中起着至关重要的作用.

研究的目的:

开发和评估一种新的纳米治疗剂,MG5-S-IMDQ,用于针对和重编程GBM中的M2-TAM.
调查MG5-S-IMDQ穿越血脑屏障 (BBB) 和调节GBM免疫微环境的能力.
评估MG5-S-IMDQ作为GBM单疗法或联合治疗的治疗潜力.

主要方法:

开发MG5-S-IMDQ通过使用曼诺和伊米达佐基诺林 (TLR 7/8激动剂) 功能化树状纳米支架.
在GBM微环境中评估BBB透率和M2-TAM的选择性向.
评估TAM表型转变,细胞活性,细胞毒性影响和抗原交叉呈现.
系统性免疫反应的分析,包括cDC1透和适应性免疫.

主要成果:

MG5-S-IMDQ证明了有效的BBB透和M2-TAM的选择性向.
用MG5-S-IMDQ治疗导致M2-TAM表型逆转和增强抗瘤功能.
纳米疗法诱导了"轮效应",促进了全身适应性免疫反应和cDC1透.
MG5-S-IMDQ成功建立了抗瘤免疫网络,显示了协同效应.

结论:

MG5-S-IMDQ是一种有前途的纳米平台,用于重编程M2-TAM并克服GBM免疫抑制.
这一策略为GBM治疗提供了一种新的免疫调节方法,具有单一治疗或组合治疗的潜力.
这些发现为推进GBM免疫疗法转化研究提供了宝贵的见解.

关键词:

一个纳米重编程程序.发细胞症 (phagocytosis) 是一种致死细胞的发生.收费类受体 7/8 的收费类受体.瘤微环境是一个微环境.与瘤相关的巨细胞.

更多相关视频

Generation of CAR T Cells for Adoptive Therapy in the Context of Glioblastoma Standard of Care

Generation of CAR T Cells for Adoptive Therapy in the Context of Glioblastoma Standard of Care

Published on: February 16, 2015

Isolation and Flow Cytometric Analysis of Glioma-infiltrating Peripheral Blood Mononuclear Cells

Isolation and Flow Cytometric Analysis of Glioma-infiltrating Peripheral Blood Mononuclear Cells

Published on: November 28, 2015

相关概念视频

Tumor Immunotherapy

Tumor Immunotherapy

Immunotherapy is a treatment that boosts or manipulates the immune system to fight diseases, including cancer. For instance, by stimulating an immune response through vaccinations against viruses that cause cancers, like hepatitis B virus and human papillomavirus, these diseases can be prevented. Nonetheless, some cancer cells can avoid the immune system due to their rapid mutation and division. The immune response to many cancers involves three phases: elimination, equilibrium, and escape.

The Tumor Microenvironment

The Tumor Microenvironment

Every normal cell or tissue is embedded in a complex local environment called stroma, consisting of different cell types, a basal membrane, and blood vessels. As normal cells mutate and develop into cancer cells, their local environment also changes to allow cancer progression. The tumor microenvironment (TME) consists of a complex cellular matrix of stromal cells and the developing tumor. The cross-talk between cancer cells and surrounding stromal cells is critical to disrupt normal tissue...