相关实验视频

Updated: Jul 6, 2025

Experimental Melanoma Immunotherapy Model Using Tumor Vaccination with a Hematopoietic Cytokine

Experimental Melanoma Immunotherapy Model Using Tumor Vaccination with a Hematopoietic Cytokine

Published on: February 24, 2023

用高效的瘤抗原涂层设计的沙门氏菌免疫疗法建立了抗原特异性CD8+T细胞免疫力,并增加了I型干扰素联合治疗的抗瘤疗效

Suyang Wang¹, Michelle Cheng¹, Chao-Cheng Chen¹

¹Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA.

|January 3, 2024

概括

这项研究开发了沙门氏菌-9RE7 (Sal-9RE7) 细菌,用于增强癌症免疫治疗. 与蛋白-IFNβ (Alb-IFNβ) 联合治疗显著增强了瘤微环境中的抗瘤效果和免疫反应.

科学领域:

免疫学免疫学免疫学
微生物学微生物学
在瘤学瘤学.

背景情况:

基于细菌的癌症治疗利用瘤相关抗原 (TAA) 刺激针对瘤的特定免疫力.
以前的抗原递送策略在抗原呈现效率方面遇到了局限性.

研究的目的:

开发一种改进的细菌疫苗用于癌症免疫疗法,使用一种新的抗原结合方法.
评估工程沙门氏菌疫苗,沙门氏菌-9RE7 (Sal-9RE7) 的疗效,作为单疗法和与辅助剂结合使用.

主要方法:

改造沙门氏菌SL7207以在其外膜上显示聚氨酸扩展的HPV E7抗原 (9RE7),从而产生Sal-9RE7.7.
在TC-1瘤小鼠模型中,Sal-9RE7作为单疗法和与阿尔伯明-IFNβ (Alb-IFNβ) 辅助剂联合使用.
评估瘤生长,抗原特异性免疫力和瘤微环境 (TME) 内的免疫性.

主要成果:

与以前的方法相比,Sal-9RE7显示出显著改善的抗原呈现.
单一治疗Sal-9RE7有效地通过诱导E7抗原特异性免疫来降低瘤生长.
与Alb-IFNβ联合治疗显著提高了TME的抗瘤疗效和免疫性.

结论:

开发的Sal-9RE7细菌疫苗代表了TAA输送的个性化免疫疗法的重大进步.
与Alb-IFNβ的联合治疗为增强瘤微环境中的抗瘤反应提供了一个有希望的策略.

关键词:

细菌免疫疗法是一种细菌免疫疗法.在 CD8+ T 细胞中.穿透细胞的可以穿透细胞.宫癌是发生在宫癌的原因之一.沙门氏菌是一种沙门氏菌.瘤抗原是一种瘤抗原.一种类型的I型互联激素.

更多相关视频

Intralymphatic Immunotherapy and Vaccination in Mice

Intralymphatic Immunotherapy and Vaccination in Mice

Published on: February 2, 2014

Tailoring In Vivo Cytotoxicity Assays to Study Immunodominance in Tumor-specific CD8+ T Cell Responses

Tailoring In Vivo Cytotoxicity Assays to Study Immunodominance in Tumor-specific CD8+ T Cell Responses

Published on: May 6, 2019

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.

Cancer Vaccines

Cancer Vaccines

Cancer treatment vaccines are a rapidly evolving field that offers a promising approach to immunotherapy. Unlike traditional vaccines that prevent diseases, cancer treatment vaccines are designed to treat existing cancers by stimulating the immune system to recognize and attack cancer cells.
Cancer vaccines come in two categories: preventive (prophylactic) and treatment (active). Preventive vaccines, such as the Human Papillomavirus (HPV) vaccine, protect against viruses that cause certain...