相关实验视频

Updated: May 5, 2026

A Proinflammatory, Degenerative Organ Culture Model to Simulate Early-Stage Intervertebral Disc Disease.

A Proinflammatory, Degenerative Organ Culture Model to Simulate Early-Stage Intervertebral Disc Disease.

Published on: February 14, 2021

布拉基尤里激活的富科伊丹水凝微球复苏退行性椎间盘微环境

Yuhao Gong^1,2, Wenxiao Shi^1,2, Xingzhu Liu³

¹Department of Orthopedics, the Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, 215006, P. R. China.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)

|June 20, 2025

概括

这项研究开发了可注射的水凝微球,可输送Brachyury (Bry) mRNA和Fucoidan (FU) 来对抗椎间盘退化 (IVDD). 治疗减少了炎症并增强了细胞外基质 (ECM) 产生,有效地逆转了大鼠模型中的IVDD.

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.
分子疗法分子疗法

背景情况:

椎间盘退化 (IVDD) 的特点是细胞外基质 (ECM) 代谢障碍和炎症.
炎症性微环境加剧了细胞核 (NP) 退化,创造了一个有害的循环.

研究的目的:

开发一种可注射生物材料系统,用于输送治疗性mRNA和抗炎药物治疗IVDD.
恢复NP细胞功能,减少炎症,并促进用于IVDD逆转的ECM合成.

主要方法:

制造可注射的GelMA/Fucoidan (FU) 水凝微球 (GF) 与表面移植的脂质纳米颗粒 (LNP) 用于mRNA输送 (BLNP@GF).
在实验室中评估FU和ECM合成促进的抗炎作用,通过Brachyury (Bry) mRNA在核细胞 (NPC) 中进行.
在鼠尾孔诱导的IVDD模型中BLNP@GF微球的体内评估.

主要成果:

GF微球表现出可注射性,多孔性和高效的LNP负载.
持续的FU释放显著降低了LPS治疗的NPCs中的炎症.
在退化的NPC中,Bry mRNA转染升级了ECM合成的调节.
BLNP@GF治疗有效地改善了ECM重塑,并在体内改善了IVDD.

结论:

装有Bry mRNA的FU功能化的GelMA水凝微球代表了IVDD治疗的有希望的策略.
这种方法有效地缓解炎症并恢复NP细胞功能,为IVDD逆转提供了潜在的治疗方法.

关键词:

在LNP中使用LNP.布拉基尤里 (Brachyury) 是一个名为布拉基尤里的人.这就是Fucoidan.水凝微球是水凝的微球.椎间盘退化椎间盘退化

更多相关视频

Optical Sectioning and Visualization of the Intervertebral Disc from Embryonic Development to Degeneration

Optical Sectioning and Visualization of the Intervertebral Disc from Embryonic Development to Degeneration

Published on: July 8, 2021

Operational and Intervention Effects of Targeted Tuina in Lumbar Intervertebral Disc Degeneration Model Rabbits

Operational and Intervention Effects of Targeted Tuina in Lumbar Intervertebral Disc Degeneration Model Rabbits

Published on: July 21, 2023

相关概念视频

Herniated Intervertebral Disc l: Introduction

Herniated Intervertebral Disc l: Introduction

Intervertebral disc herniation refers to the displacement of the nucleus pulposus (the gel-like inner core of the disc) through a tear or weakened area in the annulus fibrosus (the outer fibrous ring). The displaced disc material extends beyond the normal boundaries of the disc space and may compress or irritate nearby spinal nerve roots or, less commonly, the spinal cord.Etiology and Risk FactorsHerniation commonly results from degeneration, in which aging reduces disc hydration and...

Degenerative Disc Disease I: Introduction

Degenerative Disc Disease I: Introduction

Degenerative disc disease is a chronic condition in which intervertebral discs gradually lose structure and function. It is not infectious or autoimmune; rather, it results from age-related biochemical and mechanical changes, influenced by genetic, metabolic, and environmental factors.Structure and Function of DiscsThe spine contains 23 intervertebral discs that absorb load, distribute forces, maintain spacing, and allow flexibility. Each disc consists of a nucleus pulposus, a gel-like core...

Degenerative Disc Disease ll: Pathophysiology

Degenerative Disc Disease ll: Pathophysiology

The symptoms of degenerative disc disease arise from a combination of mechanical compression, vascular compromise, and biochemical inflammation, which together disrupt nerve function and produce pain.Mechanical CompressionDisc degeneration reduces height and elasticity, predisposing to herniation of the nucleus pulposus, a major cause of radicular pain. Herniations may be protrusion (bulging with intact annulus), extrusion (nucleus extends beyond disc but remains connected), or sequestration...