一个由脂肪酸衍生的干细胞外体单片促进口腔粘膜伤口愈合
Dany Y Matar1,2, Chung-Jan Kang3, Adriana C Panayi4
1Department of Plastic and Reconstructive Surgery, Johns Hopkins University School of Medicine, Johns Hopkins Hospital, Baltimore, Maryland, USA.
Advances in wound care
|May 7, 2025
概括
脂肪源干细胞 (ADSC) 外体板通过促进细胞迁移和组织再生,显著加速大鼠的口腔伤口愈合. 这种新疗法增强了再上皮化,减少了炎症,为口内伤口治疗提供了有前途的方法.
科学领域:
- 再生医学是一种再生医学.
- 生物材料科学 生物材料科学
- 口腔生物学 口腔生物学
背景情况:
- 口腔粘膜伤口愈合仍然不太了解,有效的治疗选择有限.
- 脂肪衍生干细胞 (ADSCs) 在组织修复方面具有潜力,但它们在口内伤口中的应用需要进一步研究.
研究的目的:
- 在大鼠模型中研究脂肪基因干细胞 (ADSC) 外体单片在促进口内伤口愈合方面的疗效.
- 阐明ADSC外体介导伤口修复的基本机制.
主要方法:
- 在大鼠的全厚粘膜硬 palatal 伤口上涂上 ADSC 外体片,对照组只接受了带.
- 在10天内监测伤口关闭,然后对组织样本进行免疫组织化学分析.
- 在体外研究中评估了ADSC外体对口腔粘膜纤维细胞迁移速度的影响.
主要成果:
- 与对照组相比,ADSC外体治疗显著加快了伤口关闭和增强了纤维细胞迁移.
- 治疗促进了重新上皮化,扩散和新血管化,同时减少炎症和增加M2巨细胞.
- 关键的分子通路,包括TGF-β/Smad和原I,受到上调,而亡标志物受到下调.
结论:
- ADSC外体板代表了一种新且有效的治疗策略,可以加速口内伤口愈合.
- 疗效效应与炎症反应的调节和TGF-β/Smad信号通路的激活有机关联系.
- 这项研究为ADSC外体在粘膜层伤口管理中的临床应用提供了基础.
相关概念视频
01:19Clinical Applications of Epidermal Stem Cells
2.6K
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...
2.6K
01:19Mesenchymal Stem Cells
4.5K
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...
4.5K
01:12Renewal of Skin Epidermal Stem Cells
2.4K
The skin is divided into epidermis, dermis, and hypodermis, the skin's outermost, middle, and inner layers. The human epidermal layer regularly undergoes renewal, where old, dead cells are replaced by new cells. Epidermal stem cells or EpiSCs divide and differentiate to restore the lost cells. For the renewal process, some EpiSCs continuously self-renew. In contrast, few others differentiate into transit-amplifying cells, which later form prickle or spinous cells, followed by granular...
2.4K