可注射的免疫调节间酶体干细胞 凝用于局部性硬化皮肤病治疗
Rui Liu1, Bin Kong1,2, Junjie Lu1
1Department of Rheumatology and Immunology, Institute of Translational Medicine, Nanjing Drum Tower Hospital, Affiliated hospital of Medical School, Nanjing University, Nanjing 210008, China.
ACS nano
|September 24, 2025
概括
这项研究开发了一种可注射的水凝,使用介质干细胞 (MSC) 和绿茶启发的多纳米酶来治疗硬化皮肤病. 新型水凝通过减少炎症和改善血管形成来促进愈合.
科学领域:
- 生物材料科学 生物材料科学
- 再生医学是一种再生医学.
- 纳米技术纳米技术
背景情况:
- 介质细胞干细胞 (MSCs) 对于结核病治疗具有前景,但它们的有效性受到当地的微环境的限制.
- 生物活性水凝是必要的,以增强MSCs治疗的抗炎,抗氧化和益血管性质,用于硬化皮肤病.
研究的目的:
- 开发一种可注射的水凝,其中包含MSC和多纳米酶,用于局部性硬皮症的治疗.
- 为了研究水凝调节免疫反应的能力,清除反应性氧物种 (ROS),并支持MSCs功能.
- 为了评估水凝的治疗潜力,在一个小鼠模型的皮质硬化症.
主要方法:
- 使用动态的希夫反应构建了一种可注射,自我愈合的水凝,结合MSC和天然多基纳米酶.
- 评估了水凝的物理化学特性,包括可注射性,自我愈合性和组织粘附性.
- 评估了水凝的生物相容性,抗氧化能力 (ROS清除),抗炎作用,以及在体外促进MSCs抗纤维化,迁移和新血管化的能力.
- 在小鼠硬化成形模型中测试了治疗功效,分析了病变恢复,炎症,纤维化和血管生成.
主要成果:
- 基于希夫反应的水凝表现出可注射性,自我愈合性和组织粘附性.
- 聚纳米酶增强了ROS清除和抗炎性质,促进了巨细胞的转化.
- 水凝为MSCs提供了一个支持性的3D环境,促进抗纤维化,血管内皮细胞迁移和新血管化.
- 在体内研究显示,小鼠的硬皮病变恢复速度加快,炎症和纤维化因素减少,血管生成增强,皮肤附属物改造改善.
结论:
- 可注射的多烯纳米酶MSCs水凝显示出治疗局部性硬皮病的巨大潜力.
- 这种生物材料策略有效调节当地的微环境,以增强MSC的治疗功能.
- 开发的水凝通过将生物材料工程与再生医学原则相结合,为结核病管理提供了一个有前途的治疗方法.
更多相关视频
11:283D Microtissues for Injectable Regenerative Therapy and High-throughput Drug Screening
Published on: October 4, 2017
10.7K
07:45Ultrasound-guided Intracardiac Injection of Human Mesenchymal Stem Cells to Increase Homing to the Intestine for Use in Murine Models of Experimental Inflammatory Bowel Diseases
Published on: September 1, 2017
12.7K
相关概念视频
Mesenchymal Stem Cells
5.5K
Mesenchymal stem cells (MSCs) are adult stem cells that can differentiate into most connective tissue cell types, except for hematopoietic cells, depending upon the source of MSCs. For example, bone-marrow-derived MSCs (BM-MSCs) can differentiate into osteocytes, hepatocytes, and pancreatic and neuronal cells. MSCs can be isolated from various sources such as bone marrow, placenta, adipose tissue, teeth, and Wharton’s jelly, a gelatinous substance in the umbilical cord. The ease of their...
5.5K
Clinical Applications of Epidermal Stem Cells
3.3K
Epidermal stem cells (EpiSCs) are mainly located at the basal layer of the epidermis. These cells repair minor injuries of the skin and replace dead skin cells. However, EpiSCs’ cannot heal severe wounds such as major burns or those from diabetes or hereditary disorders. In such cases, culturing the epidermal stem cells from the patient is possible and has yielded successful treatment options, such as laboratory-grown skin grafts. These grafts are synthesized using a patient’s own...
3.3K
