一种自身的,血管化的,免疫能力强的组织工程化皮肤,以突出个人间的变化,以更好地了解人类的伤口愈合
Emilie Attiogbe1,2, Elodie Mareux1,2, Sébastien Larochelle2
1Department of Surgery, Faculty of Medicine, Université Laval, Québec, Quebec, Canada.
概括
一个新的3D自身皮肤模型 (aviTES) 准确地模仿了人类的伤口愈合,并显示了特定于捐赠者的反应. 这种工具有助于了解个体的愈合变异,并推进个性化医疗,以改善皮肤再生.
科学领域:
- 生物技术是生物技术.
- 皮肤病学 皮肤病学
- 再生医学是一种再生医学.
背景情况:
- 在体外皮肤模型中缺乏血管和免疫成分,这对于伤口愈合研究至关重要.
- 了解伤口愈合的个体间变异性是有限的,阻碍了对遗传和环境因素的研究.
研究的目的:
- 开发和验证一个3D自主,血管化和免疫能力的组织工程皮肤 (aviTES) 模型.
- 使用aviTES模型调查伤口愈合过程和个人间的变异性.
- 评估血小板溶解酸治疗对自身背景下的伤口愈合的影响.
主要方法:
- 使用捐赠者特定细胞生成3D自生aviTES模型.
- 诱导了标准化的2毫米穿孔活检伤口,并监测了7天的关闭.
- 利用免疫光学分析细胞迁移,新血管生成,原和MMP分泌.
- 应用了血小板溶解剂治疗,以评估其对伤口愈合的影响.
主要成果:
- 通过aviTES模型,可以证明可重复的捐赠者内部重新表皮化,但在伤口关闭方面具有显著的捐赠者间变异性.
- 在所有捐赠者中观察到淋巴细胞迁移,在未经治疗的伤口中没有显著的CD206+细胞迁移或新血管生成.
- 血小板溶解酸治疗增强了表皮迁移,毛细血管组织,并以一种特定于供体的方式改变了原/MMP分泌.
结论:
- aviTES模型有效地复制了人类伤口愈合和个体间变异性的关键方面.
- 该模型突出显示了供体对血小板溶解酸的特异反应,支持个性化医疗方法.
- aviTES为研究伤口愈合机制和开发向治疗提供了一个新的平台.
相关概念视频
01:22Development of Immunocompetence
874
The initiation of cell-mediated immunity can be observed as early as the third month of fetal growth, with active antibody-mediated immunity following approximately one month later.
The initial cells that migrate from the fetal thymus settle within the skin and epithelial tissues lining the mouth, digestive tract, and in females, the uterus and vagina. These cells, including skin-based dendritic cells, serve as antigen-presenting cells, playing a key role in T cell activation.
Subsequent T...
The initial cells that migrate from the fetal thymus settle within the skin and epithelial tissues lining the mouth, digestive tract, and in females, the uterus and vagina. These cells, including skin-based dendritic cells, serve as antigen-presenting cells, playing a key role in T cell activation.
Subsequent T...
874
01:28Understanding the Self
286
The self is a central aspect of human identity, encompassing an individual’s beliefs, emotions, perceptions, and experiences. It is a cognitive and psychological construct that enables individuals to interpret their traits and behaviors, influencing how they perceive themselves and interact with the world. While personality consists of stable and enduring characteristics, the self is shaped by self-perception and social experiences. This distinction highlights the dynamic nature of the...
286
01:30Impact of Individuals on Individuals
381
Human behavior is intricately shaped by social influences that arise from interactions with others in diverse contexts. These influences not only mold beliefs and attitudes but also drive the regulation of behaviors through both direct communication and observational learning. The study of these processes falls within the domain of social psychology, which seeks to understand how individuals are affected by and affect those around them.Mechanisms of Social InfluenceDirect social influence...
381
03:24Seedless Vascular Plants
66.8K
Seedless Vascular Plants Were the First Tall Plants on Earth
66.8K
01:20Understanding Self-Concept
277
The self-concept encompasses individuals' beliefs about themselves, structured through cognitive frameworks known as self-schemas. These schemas function as mental representations of specific traits or behaviors, influencing how self-relevant information is perceived, processed, and remembered. For example, individuals who are schematic for body weight are more likely to interpret routine experiences—such as dining out or shopping—through the lens of that trait. Conversely, those...
277
01:14Understanding Deception
167
Deception is a pervasive aspect of human communication. Empirical studies have shown that most individuals engage in some form of deceit on a daily basis, with approximately 20% of social exchanges involving deceptive elements. Lying follows a developmental trajectory, peaking during adolescence and declining with age, possibly due to the maturation of cognitive control and social accountability.Cognitive and Social Factors in Deception DetectionDespite its prevalence, accurately detecting...
167