相关实验视频

Updated: Aug 16, 2026

In vivo Near Infrared Fluorescence NIRF Intravascular Molecular Imaging of Inflammatory Plaque, a Multimodal Approach to Imaging of Atherosclerosis

In vivo Near Infrared Fluorescence NIRF Intravascular Molecular Imaging of Inflammatory Plaque, a Multimodal Approach to Imaging of Atherosclerosis

Published on: August 4, 2011

一个新的治疗心肌梗塞的策略,通过中和内源性SO2使用一个光探针准内等质网膜

Yunhan Jiang¹, Pingxian Liu¹, Huidong Li²

¹Department of Cardiovascular Surgery, and Laboratory of Human Diseases and Immunotherapies, West China Hospital, Sichuan University, Chengdu, 610041, China; Institute of Immunology and Inflammation, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, 610041, China.

European journal of medicinal chemistry

|August 16, 2024

概括

研究人员开发了一种新的光探测器,TPA-HI-SO2,用于检测氧化物 (SO2) 在内分泌网膜. 这种探测表明,中和SO2为心肌梗塞 (MI) 提供了有前途的治疗策略.

科学领域:

生物医学工程生物医学工程
心血管研究研究心血管研究
化学生物学化学生物学

背景情况:

心肌梗塞 (MI) 是全球主要的死亡原因,需要更好的理解和治疗.
二氧化硫 (SO2) 在细胞内膜网膜中起到关键作用在心血管疾病,但其功能在MI仍然不清楚.

研究的目的:

开发第一个光剂,用于成像二氧化硫衍生物.
在心肌梗塞的背景下,阐明内源性SO2在内质网膜中的作用.
为了研究中和内源性SO2治疗心脏病的治疗潜力.

主要方法:

开发TPA-HI-SO2,一个针对内质网膜的比度光探针.
在体外和体外评估TPA-HI-SO2对SO2衍生物的敏感性,选择性和反应时间.
评估TPA-HI-SO2对H9C2细胞和小鼠MI模型中的SO2度的影响.
对TPA-HI-SO2对H2O2诱导的亡和体内心肌梗塞的保护作用的评估.

主要成果:

TPA-HI-SO2对SO2衍生物具有很高的敏感性和选择性,反应时间很快.
探测器成功降低了H2O2处理的H9C2细胞和MI小鼠模型中的SO2度.
TPA-HI-SO2在H9C2细胞中提供了对H2O2诱导的亡的保护,并且在体内显著减少了心肌梗塞.
在心肌梗塞小鼠模型中观察到内源性SO2度的增加.

结论:

TPA-HI-SO2是第一个针对内源SO2的ER定位比度光探针,具有出色的生物相容性,选择性和灵敏性.
这项研究显示,心肌梗塞时内源性SO2度增加,这表明其病理作用.
在内分泌网膜中对内源性SO2进行中和,为心肌梗塞提供了一个有前途的治疗策略.

关键词:

内源性 SO2 的能准内细胞网膜的目标细胞.光探测器探测器可以发光.心肌梗塞的心脏病发作接近红外的近红外.

更多相关视频

Direct Imaging of ER Calcium with Targeted-Esterase Induced Dye Loading TED

Direct Imaging of ER Calcium with Targeted-Esterase Induced Dye Loading TED

Published on: May 7, 2013

Minimal Invasive Surgical Procedure of Inducing Myocardial Infarction in Mice

Minimal Invasive Surgical Procedure of Inducing Myocardial Infarction in Mice

Published on: May 4, 2015

相关概念视频

Mitral Stenosis III: Medical Management

Mitral Stenosis III: Medical Management

Mitral stenosis, a condition marked by the narrowing of the mitral valve, necessitates an integrated approach for effective management. This approach includes preventative measures, medical therapy, and surgical interventions to reduce symptoms and prevent complications.PreventionPrevention of mitral stenosis primarily focuses on reducing the incidence of bacterial infections, particularly streptococcal infections, which can lead to rheumatic fever and subsequent valvular damage. Timely...

Myocarditis III: Medical Management

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...

Peripheral Artery Disease III: Interprofessional Care

Peripheral Artery Disease III: Interprofessional Care

Peripheral Artery Disease (PAD) is characterized by narrowed arteries that diminish blood flow to the extremities. Effective management of PAD requires an interprofessional approach involving various healthcare professionals. The critical aspects of interprofessional care for PAD patients focus on risk factor modification, drug therapy, exercise therapy, nutrition therapy, critical limb ischemia care, and interventional radiology and surgical procedures.The primary treatment goal for PAD...