为治疗应用优化工程心脏组织作为代用心脏肌肉的治疗应用
Hiroshi Naito1, Ivan Melnychenko, Michael Didié
1Institute of Experimental and Clinical Pharmacology and Toxicology, University Medical Center Hamburg-Eppendorf, Martinistr. 5, 20246 Hamburg, Germany.
Circulation
|July 6, 2006
概括
使用混合细胞种群和无血清条件的工程心脏组织 (EHT) 显示出功能和血管化的改善. EHTs的融合为心脏再生创造了更大的结构.
科学领域:
- 生物医学工程 生物医学工程
- 再生医学是一种再生医学.
- 心血管研究研究心血管研究
背景情况:
- 心脏组织工程旨在再生心肌.
- 目前用于工程心脏组织 (EHT) 的方法可以得到改进.
- 假设:通过混合细胞种群,定义培养和融合来增强EHT.
研究的目的:
- 改善工程心脏组织 (EHT) 功能和血管化.
- 为EHTs开发无血清和无Matrigel培养条件.
- 能够将EHT融合到更大,多个单位的结构中.
主要方法:
- 使用本地和肌细胞丰富的心脏细胞种群构建的EHT.
- 开发的增长因子补充,无血清介质.
- 使用三甲氨酸和胰岛素来消除Matrigel.
- 将单个单元的 EHT 融合到多个单元的结构中.
主要成果:
- 原生细胞群EHTs表现出优越的收缩性能和血管化.
- 没有血清的条件维持了收缩性EHTs.
- 马特里格尔成功地从溶解混合物中提取出来.
- 具有可变几何形状的多单元EHTs是通过融合形成的.
结论:
- 模拟本地心脏细胞环境可以增强EHT功能和毛细血管形成.
- 在EHT中原始毛细血管可以形成体外血管床,以改善移植.
- 没有血清和Matrigel的条件会降低EHT的免疫性.
- 通过EHT融合,可以生产用于心脏再生的大型结构.
相关概念视频
Myocarditis III: Medical Management
Myocarditis: Comprehensive Medical ManagementMyocarditis, the heart muscle inflammation, requires a comprehensive medical management strategy that addresses the underlying cause, provides supportive care, manages symptoms, and reduces cardiac workload.Infections and Autoimmune CausesAdminister appropriate antimicrobial therapy when an infectious agent causes myocarditis. For instance, penicillin treats infections caused by Group A Streptococcus. In cases where autoimmune processes are...
Heart Failure V: Medical Management
Medical Management of Acute Decompensated Heart Failure (ADHF)The primary goals of therapy for patients hospitalized with acute decompensated heart failure (ADHF) include:Relieving symptomsOptimizing volume statusSupporting oxygenation and ventilationMaintaining cardiac output (CO) and end-organ perfusionIdentifying and addressing the cause of ADHFPreventing complicationsProviding patient education on factors precipitating HF exacerbationPlanning for dischargeOngoing monitoring and assessment...
Heart Failure VI: Adjunct Therapies
Additional therapies for treating patients with heart failure (HF) may include procedural interventions, supplemental oxygen, the management of sleep disorders, and nutritional therapy.Procedural InterventionsImplantable Cardioverter-Defibrillator: For patients at risk of life-threatening arrhythmias due to severe left ventricular dysfunction, an Implantable Cardioverter-Defibrillator (ICD) can detect and terminate these arrhythmias, preventing sudden cardiac death and improving survival rates.
Cardiomyopathy II: Dilated Cardiomyopathy
Dilated cardiomyopathy, or DCM, is a progressive myocardial disorder characterized by ventricular chamber dilation and contractile dysfunction.EtiologyVarious factors can cause DCM, including hypertension and heavy alcohol intake, which contribute to the weakening and enlargement of the heart muscle. Viral infections, such as Coxsackievirus B, adenoviruses, and influenza, can lead to DCM by causing inflammation and damage to heart tissue. Certain chemotherapeutic agents, including daunorubicin,...
Cardiomyopathy III: Hypertrophic Cardiomyopathy
Hypertrophic cardiomyopathy, or HCM, is an autosomal dominant genetic disorder characterized by asymmetric left ventricular hypertrophy without ventricular dilation. It is more common in men and is typically diagnosed in young, athletic adults.EtiologyHCM is primarily genetic and is caused by mutations in genes encoding sarcomeric proteins. Researchers have identified over 1400 mutations across at least 11 different genes. Among these, the most frequently occurring mutations are found in the...
Cardiomyopathy V: Interprofessional Care
Managing cardiomyopathy involves addressing underlying or precipitating causes, treating heart failure with medications, and implementing dietary changes and a balanced exercise and rest regimen.Lifestyle ModificationsCardiomyopathy patients should adopt a low-sodium diet to reduce fluid retention and manage heart failure. A personalized exercise and rest plan helps maintain physical fitness without overstraining the heart. Avoiding alcohol and tobacco is essential to prevent further damage to...


