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Activation of phagocytosis by immune checkpoint blockade
null
《医学前沿(英文)》 2018年 第12卷 第4期 页码 473-480 doi: 10.1007/s11684-018-0657-5
Inhibition of macrophage-mediated phagocytosis has emerged as an essential mechanism for tumor immune evasion. One mechanism inhibiting the innate response is the presence of the macrophage inhibitory molecule, signal regulatory protein-α (SIRPα), on tumor-associated macrophages (TAMs) and its cognate ligand cluster of differentiation 47 (CD47) on tumor cells in the tumor microenvironment. On the basis of a recently discovered programmed death protein 1 (PD-1) in TAMs, we discuss the potential inhibitory receptors that possess new functions beyond T cell exhaustion in this review. As more and more immune receptors are found to be expressed on TAMs, the corresponding therapies may also stimulate macrophages for phagocytosis and thereby provide extra anti-tumor benefits in cancer therapy. Therefore, identification of biomarkers and combinatorial therapeutic strategies, have the potential to improve the efficacy and safety profiles of current immunotherapies.
关键词: CD47 PD-1 PD-L1 immunotherapy TAM phagocytosis macrophage
Applications of atomic force microscopy in immunology
Jiping Li, Yuying Liu, Yidong Yuan, Bo Huang
《医学前沿(英文)》 2021年 第15卷 第1期 页码 43-52 doi: 10.1007/s11684-020-0769-6
关键词: cellular mechanics atomic force microscopy neutrophil extracellular trap macrophage phagocytosis pore formation
《医学前沿(英文)》 2023年 第17卷 第4期 页码 781-795 doi: 10.1007/s11684-023-0986-x
关键词: dry eye disease glycolytic reprogramming pyroptosis inflammation 2-DG
Jieni Fu,Xiangmei Liu,Zhaoyang Li,Yufeng Zheng,Yu Zhang,Hui Jiang,Yanqin Liang,Shengli Zhu,Zhenduo Cui,Shuilin Wu,
《工程(英文)》 doi: 10.1016/j.eng.2023.05.022
关键词: Multidrug-resistant Escherichia coli Macrophage–Fe3O4@PLGA particles Biomimetic intelligent catalysis
基于转录组学及多尺度生物测定多模态鉴定宣肺败毒方抑制巨噬细胞免疫反应的活性成分 Article
赵璐, 刘豪, 王迎超, 王书芳, 荀得金, 王毅, 程翼宇, 张伯礼
《工程(英文)》 2023年 第20卷 第1期 页码 63-76 doi: 10.1016/j.eng.2021.09.007
宣肺败毒方(XFBD)是一种临床用于治疗新型冠状病毒肺炎(COVID-19)病患的中药方剂,在临床实践中表现出了显著的疗效,但对其潜在的药理学机制尚不清楚。本研究结合网络药理学、转录组学和多模型系统生物测定等综合研究方法,研究了XFBD生物活性物质及其药理作用机制。通过高分辨质谱与分子网络相结合,对XFBD中的主要活性物质进行了分析,共鉴定或初步鉴定了104种化合物,包括黄酮类、萜类、羧酸类和其他类型的成分。基于所鉴定的XFBD化学组分,开展了网络药理学分析并将炎症相关通路确定为主要靶点。在脂多糖诱导的急性炎症小鼠模型中,XFBD明显减轻了肺部炎症,降低了血清促炎细胞因子水平。转录组学分析表明,经XFBD治疗后,与巨噬细胞功能相关的基因表达水平发生改变。在巨噬细胞细胞系和斑马鱼创伤模型中,XFBD对巨噬细胞的激活和迁移均有很强的抑制作用。最终,通过多模型系统筛选,发现XFBD中虎杖、芦根、化橘红显著下调巨噬细胞活化,虎杖苷、异甘草苷、毛蕊花糖苷为活性化合物;青蒿和麻黄显著抑制内源性巨噬细胞迁移,麻黄碱、白术内酯和山奈酚为活性化合物。综上所述,本研究通过多模态方法研究了XFBD调节炎症的活性成分以及相关药理学机制,从而为XFBD的临床疗效提供了生物学例证。
Application of StrucGP in medical immunology: site-specific -glycoproteomic analysis of macrophages
《医学前沿(英文)》 2023年 第17卷 第2期 页码 304-316 doi: 10.1007/s11684-022-0964-8
关键词: macrophage glycoproteome glycopeptides N-glycan structures PD-L1
巨噬细胞在器官移植急性排斥反应中的双重作用 Review
谭亮, 郭易难, 冯畅, 侯仰潇, 谢续标, 赵勇
《工程(英文)》 2022年 第10卷 第3期 页码 21-29 doi: 10.1016/j.eng.2021.10.015
天然免疫细胞在移植免疫反应中发挥着重要作用。巨噬细胞是重要的天然免疫细胞;在发生排斥反应的同种异基因移植器官中,巨噬细胞也是浸润的众多免疫细胞之一。巨噬细胞的浸润与器官移植的短期和长期效果呈负相关。在功能方面,巨噬细胞具有异质性和可塑性。在器官移植排斥反应中,巨噬细胞可以为适应性免疫提呈同种异基因抗原以及提供共刺激信号和细胞因子,也可以直接损伤移植器官。此外,一些具有免疫调节功能的巨噬细胞亚群,可以通过抑制排斥反应和促进免疫耐受来保护移植器官。尽管目前研究人员已认识到巨噬细胞在移植器官损伤过程中的潜在作用,但他们对巨噬细胞在移植排斥反应中的不同作用关注不够。为此,本文就巨噬细胞在急性移植免疫反应中的独特作用以及免疫抑制剂对巨噬细胞的影响进行了综述和讨论。通过分析发现,对于巨噬细胞在移植免疫中的作用的相关研究中,应更多地关注其复杂性和关键功能,并应更多地致力于开发针对巨噬细胞的免疫抑制药物,并使之有利于提高移植器官的长期存活率和移植免疫耐受的建立。
《医学前沿(英文)》 2023年 第17卷 第4期 页码 699-713 doi: 10.1007/s11684-022-0972-8
关键词: anti-CD19 chimeric antigen receptor T immunotherapy diffuse large B cell lymphoma tumor microenvironment tumor-associated macrophage metabolism
Mo Chen, Yuzhou Chen, Sijia Feng, Shixian Dong, Luyi Sun, Huizhu Li, Fuchun Chen, Nguyen Thi Kim Thanh, Yunxia Li, Shiyi Chen, You Wang, Jun Chen
《工程(英文)》 doi: 10.1016/j.eng.2023.05.010
Skeletal muscle has a robust regeneration ability that is impaired by severe injury, disease, and aging, resulting in a decline in skeletal muscle function. Therefore, improving skeletal muscle regeneration is a key challenge in treating skeletal muscle-related disorders. Owing to their significant role in tissue regeneration, implantation of M2 macrophages (M2Mø) has great potential for improving skeletal muscle regeneration. Here, we present a short-wave infrared (SWIR) fluorescence imaging technique to obtain more in vivo information for an in-depth evaluation of the skeletal muscle regeneration effect after M2Mø transplantation. SWIR fluorescence imaging was employed to track implanted M2Mø in the injured skeletal muscle of mouse models. It is found that the implanted M2Mø accumulated at the injury site for two weeks. Then, SWIR fluorescence imaging of blood vessels showed that M2Mø implantation could improve the relative perfusion ratio on day 5 (1.09 ± 0.09 vs 0.85 ± 0.05; p = 0.01) and day 9 (1.38 ± 0.16 vs 0.95 ± 0.03; p = 0.01) post-injury, as well as augment the degree of skeletal muscle regeneration on day 13 post-injury. Finally, multiple linear regression analyses determined that post-injury time and relative perfusion ratio could be used as predictive indicators to evaluate skeletal muscle regeneration. These results provide more in vivo details about M2Mø in skeletal muscle regeneration and confirm that M2Mø could promote angiogenesis and improve the degree of skeletal muscle repair, which will guide the research and development of M2Mø implantation to improve skeletal muscle regeneration.
关键词: In vivo Short-wave infrared Skeletal muscle Macrophage Regeneration
标题 作者 时间 类型 操作
Applications of atomic force microscopy in immunology
Jiping Li, Yuying Liu, Yidong Yuan, Bo Huang
期刊论文
Hyperosmolarity promotes macrophage pyroptosis by driving the glycolytic reprogramming of corneal epithelial
期刊论文
Biomimetic Macrophage–Fe3O4@PLGA Particle-Triggered Intelligent Catalysis for Killing Multidrug-Resistant
Jieni Fu,Xiangmei Liu,Zhaoyang Li,Yufeng Zheng,Yu Zhang,Hui Jiang,Yanqin Liang,Shengli Zhu,Zhenduo Cui,Shuilin Wu,
期刊论文
Application of StrucGP in medical immunology: site-specific -glycoproteomic analysis of macrophages
期刊论文
Immunosuppressive tumor microenvironment contributes to tumor progression in diffuse large B-cell lymphoma upon anti-CD19 chimeric antigen receptor T therapy
期刊论文