相关实验视频
Updated: Feb 13, 2026

09:46
Accessing the Cytotoxicity and Cell Response to Biomaterials
Published on: July 8, 2021
4.6K
组织损伤和生物材料治疗调节瘤生长和对免疫疗法的反应
bioRxiv : the preprint server for biology
|February 12, 2026
概括
创伤性肌肉损伤加速瘤生长,并通过损害T细胞恶化免疫治疗反应. 用生物材料增强伤口愈合改善了接受免疫检查点阻塞 (ICB) 的患者的治疗结果和生存率.
科学领域:
- 在瘤学瘤学.
- 免疫学 免疫学 免疫学
- 再生医学是一种再生医学.
背景情况:
- 免疫疗法,包括免疫检查点阻塞 (ICB),已经彻底改变了癌症治疗.
- 对ICB的治疗反应因瘤内在和外在因素而有显著差异.
- 组织损伤对ICB疗效的影响在很大程度上仍未被探索.
研究的目的:
- 在小鼠模型中研究远端创伤性肌肉损伤对瘤进展和ICB反应的影响.
- 阐明损伤引起的癌症影响背后的免疫机制.
- 评估再生生物材料在减轻损伤对癌症结果和ICB反应的不良影响方面的潜力.
主要方法:
- 我们使用了远端创伤性肌肉损伤和多个瘤的小鼠模型.
- 流细胞计和免疫组织化学评估了内CD8+T细胞种群和表型.
- 研究了通过排水淋巴结的传播途径.
- 生物支架被用来增强伤害修复.
- 对接受ICB和生物支架植入术后乳腺切除术的乳腺癌患者进行了回顾性分析.
主要成果:
- 距离创伤性肌肉损伤加速了小鼠的瘤进展和损害了辅助ICB反应.
- 损伤导致瘤内CD8+T细胞密度和效应器功能下降,由淋巴结沟通介导.
- 用生物支架增强伤害修复逆转了瘤的加速生长和改善了ICB反应,依赖于互白素-4.
- 在乳腺癌患者中,乳房切除术后的支架植入与ICB治疗期间改善的整体存活率相关.
结论:
- 远程创伤损伤可以诱导免疫功能障碍,促进癌症的进展和ICB耐药性.
- 通过亲再生生物材料促进伤口愈合,通过介导interleukin-4的增强可以抵消受伤引起的免疫抑制.
- 再生生物材料是改善癌症结局的有希望的策略,特别是在接受辅助或新辅助ICB的患者中.
- 准伤口愈合过程可能对优化癌症免疫治疗疗效至关重要.
更多相关视频
08:29Ex Vivo Treatment Response of Primary Tumors and/or Associated Metastases for Preclinical and Clinical Development of Therapeutics
Published on: October 2, 2014
15.2K
09:15Experimental Melanoma Immunotherapy Model Using Tumor Vaccination with a Hematopoietic Cytokine
Published on: February 24, 2023
4.0K
相关概念视频
Tumor Immunotherapy
2.0K
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.
2.0K
Growth of Cartilage and Bone Tissue
4.3K
Chondrocytes form a temporary cartilaginous model by dividing and secreting a thick gel-like extracellular matrix. Once the chondrocytes undergo programmed cell death, osteoblasts enter the site of the cartilaginous model. The process of replacing the temporary cartilaginous model with bone in an ordered manner is called endochondral ossification. In endochondral ossification, not all of the cartilage is replaced by bone tissue. Some cartilage that performs a protective and supportive function...
4.3K
Elastin is Responsible for Tissue Elasticity
3.2K
Elastic fiber contains the protein elastin along with lesser amounts of other proteins and glycoproteins. The main property of elastin is that it will return to its original shape after being stretched or compressed. Elastic fibers are prominent in elastic tissues found in skin and the elastic ligaments of the vertebral column.
Ligaments and tendons are made of dense regular connective tissue, but in ligaments not all fibers are parallel. Dense regular elastic tissue contains elastin fibers and...
Ligaments and tendons are made of dense regular connective tissue, but in ligaments not all fibers are parallel. Dense regular elastic tissue contains elastin fibers and...
3.2K
Inflammatory Response II: Inflammatory Exudate and Tissue Repair
8.0K
The immune system's inflammatory response destroys the invading pathogen, permitting the tissue to heal. The changes during the cellular and vascular stages allow exudate formation at the site of inflammation. The inflammatory exudate released from the wound has high protein content and a specific gravity above 1.020.
The typical wound exudate is odorless, transparent, straw-colored, thin, and watery. Exudate, however, can differ depending on the state of wound healing. Likewise, the...
The typical wound exudate is odorless, transparent, straw-colored, thin, and watery. Exudate, however, can differ depending on the state of wound healing. Likewise, the...
8.0K
Meristems and Plant Growth
49.7K
Plants grow throughout their lives; this is called indeterminate growth, and it distinguishes plants from most animals. Although certain parts of plants stop growing (e.g., leaves and flowers), others grow continuously—like roots and stems.
49.7K
Population Growth
28.7K
Population size is dynamic, increasing with birth rates and immigration, and decreasing with death rates and emigration. In ideal conditions with unlimited resources, populations can increase exponentially, which plots as a J-shaped growth rate curve of population size against time. This type of curve is characteristic of newly-introduced invasive species, or populations that have suffered catastrophic declines and are rebounding.
28.7K