相关实验视频

Updated: Feb 13, 2026

Measurements of Motor Function and Other Clinical Outcome Parameters in Ambulant Children with Duchenne Muscular Dystrophy

Measurements of Motor Function and Other Clinical Outcome Parameters in Ambulant Children with Duchenne Muscular Dystrophy

Published on: January 12, 2019

来自患者的3D生物打印心脏器官构造揭示了杜申肌肉衰竭的关键病理特征

Vittoria Marini¹, Margalida Campaner Socias¹, Andreas Dimopoulos^2,3

¹Translational Cardiology Laboratory, Stem Cell & Developmental Biology Unit, Department of Development & Regeneration, KU Leuven, Leuven, Belgium.

Advanced healthcare materials

|February 12, 2026

概括

研究人员从杜氏肌肉发育不良 (DMD) 患者细胞创建了3D心脏器官 (COs) 和生物打印心脏结构 (bCOs). 这些模型精确地模仿了DMD心肌病,为疾病研究和药物开发提供了新的工具.

科学领域:

心血管研究研究心血管研究
再生医学是一种再生医学.
遗传学遗传学是一个

背景情况:

杜氏肌肉衰竭 (DMD) 导致肌肉逐渐退化,心肌病是主要的死亡原因.
目前的模型在阐明DMD心肌病的确切病原机制方面缺乏可靠性.
关键的特征包括调节失调,纤维化和脂肪沉积,但潜在的过程尚不清楚.

研究的目的:

从DMD患者衍生的诱导多能干细胞 (DMD-hiPSCs) 开发和验证3D心脏器官 (COs) 和生物打印心脏结构 (bCOs).
调查这些模型在回顾DMD相关心肌病的实用性.
建立先进的工具来研究DMD心肌病,并促进药物查.

主要方法:

从DMD-hiPSCs,同位素对照 (DMD-Iso-hiPSCs) 和健康对照 (HC-hiPSCs) 来生成3D心脏器官 (COs).
根据疾病特征对心脏的区分和COs的表征.
使用酸盐-凝,将COs生物打印成水凝结构 (bCOs).
对细胞死亡,基因表达和心脏和纤维病理学标记物的bCOs的评估.

主要成果:

与对照组相比,DMD-COs表现出细胞死亡增加,ROS升高和信号缺陷.
生物打印构造物 (bCOs) 显示细胞间通信增强,NKX2.5水平降低.
DMD-bCOs重述了DMD心肌病的关键特征,包括细胞死亡增加和心脏/纤维细胞标志物的失调.

结论:

来自DMD-hiPSC的3D心脏器官和生物打印结构是DMD心肌病的可靠模型.
这些先进的模型为了解疾病机制提供了巨大的潜力.
开发的COs和bCOs可以推进DMD的药物查和治疗开发.

关键词:

杜申尼肌肉发育不良症杜申尼肌肉发育不良症酸是一种酸.生物打印是一种生物打印技术.这是心脏器官的器官.心肌病心脏病变的发生.这是一种凝凝.

更多相关视频

Purification and Transplantation of Myogenic Progenitor Cell Derived Exosomes to Improve Cardiac Function in Duchenne Muscular Dystrophic Mice

Purification and Transplantation of Myogenic Progenitor Cell Derived Exosomes to Improve Cardiac Function in Duchenne Muscular Dystrophic Mice

Published on: April 10, 2019

A Simple and Low-cost Assay for Measuring Ambulation in Mouse Models of Muscular Dystrophy

A Simple and Low-cost Assay for Measuring Ambulation in Mouse Models of Muscular Dystrophy

Published on: December 29, 2017

相关概念视频

Satellite Stem Cells and Muscular Dystrophy

Satellite Stem Cells and Muscular Dystrophy

Satellite stem cells or myosatellite cells are quiescent stem cells that Alexander Mauro first identified in 1961. These cells are located between the sarcolemma, the plasma membrane of muscle fibers, and the basal lamina, the connective tissue sheath covering it. These mononucleated cells are activated in response to muscle injury, can transform into myoblasts, and may form or repair muscle fibers. Myosatellite cells can provide additional myonuclei for muscle regeneration or return to a...

The Muscular System

The Muscular System

The muscular system is essential to the body's overall structure and function, playing a crucial role in movement, stability, and internal processes. It consists of three distinct types of muscle tissue: the skeletal, the smooth, and the cardiac muscles.

Key Elements for Plant Nutrition

Key Elements for Plant Nutrition

Like all living organisms, plants require organic and inorganic nutrients to survive, reproduce, grow and maintain homeostasis. To identify nutrients that are essential for plant functioning, researchers have leveraged a technique called hydroponics. In hydroponic culture systems, plants are grown—without soil—in water-based solutions containing nutrients. At least 17 nutrients have been identified as essential elements required by plants. Plants acquire these elements from the...

Key Techniques in Microbiology

Key Techniques in Microbiology

Aseptic techniques prevent contamination, ensure experimental accuracy, and protect researchers and microbial cultures. These techniques are essential in clinical, industrial, and research settings where sterility is required.Maintaining Sterility in Laboratory PracticesScientists maintain sterility by sterilizing tools with heat or chemicals, disinfecting work surfaces, and handling cultures in controlled environments. Working near an open flame or within a laminar flow hood reduces the risk...

Toxidromes: Clinical Features

Toxidromes: Clinical Features

Toxidromes are specific patterns of symptoms resulting from toxic substance exposure. They help in the identification and treatment of poisoning. The symptoms of each toxidrome group indicate poisoning by a certain class of chemicals or drugs.1. Sympathomimetic: Stimulates the sympathetic nervous system. Symptoms include agitation, increased heart rate (HR), blood pressure (BP), respiratory rate (RR), temperature, and pupil size. Drugs like cocaine and amphetamines, along with tremors and...

COPD: Pathogenesis and Clinical Features

COPD: Pathogenesis and Clinical Features

Chronic obstructive pulmonary disease (COPD) is a group of lung conditions that progressively worsen over time, including chronic bronchitis and emphysema. This cluster of diseases collectively leads to a gradual and irreversible decline in lung function over time.
The primary cause for the onset of COPD is cigarette smoking and exposure to air pollution. These hazardous factors initiate a chain reaction within the lungs, resulting in chronic inflammation, damage to the airways, and a...