基于诱导多能干细胞(iPSC)的杜氏肌营养不良(DMD)疾病模型构建与心肌病变机制研究

注册号:

Registration number:

ChiCTR2600126646 

最近更新日期:

Date of Last Refreshed on:

2026-06-12 16:23:36 

注册时间:

Date of Registration:

2026-06-12 00:00:00 

注册号状态:

预注册

Registration Status:

Prospective registration

注册题目:

基于诱导多能干细胞(iPSC)的杜氏肌营养不良(DMD)疾病模型构建与心肌病变机制研究

Public title:

Construction of an Induced Pluripotent Stem Cell (iPSC)-Based Model for Duchenne Muscular Dystrophy (DMD) and Investigation of the Underlying Mechanisms of Cardiomyopathy

注册题目简写:

源于“干细胞”的DMD心脏病研究

English Acronym:

Stem Cell-Based Research into DMD Heart Disease

研究课题的正式科学名称:

基于诱导多能干细胞(iPSC)的杜氏肌营养不良(DMD)疾病模型构建与心肌病变机制研究

Scientific title:

Construction of an Induced Pluripotent Stem Cell (iPSC)-Based Model for Duchenne Muscular Dystrophy (DMD) and Investigation of the Underlying Mechanisms of Cardiomyopathy

研究课题代号(代码):

Study subject ID:

在二级注册机构或其它机构的注册号:

The registration number of the Partner Registry or other register:

申请注册联系人:

洪思琦 

研究负责人:

洪思琦 

Applicant:

SiqiHong 

Study leader:

Siqi Hong 

申请注册联系人电话:

Applicant telephone:

+86 136 4836 4615

研究负责人电话:

Study leader's
telephone:

+86 23 6362 2984

申请注册联系人传真 :

Applicant Fax:

研究负责人传真:

Study leader's fax:

申请注册联系人电子邮件:

Applicant E-mail:

siqihong@hotmail.com

研究负责人电子邮件:

Study leader's E-mail:

siqihong@cqmu.edu.cn

申请单位网址(自愿提供):

Applicant website(voluntary supply):

研究负责人网址(自愿提供):

Study leader's website(voluntary supply):

申请注册联系人通讯地址:

重庆市渝中区中山二路136号

研究负责人通讯地址:

重庆市渝中区中山二路136号

Applicant address:

No. 136, Zhongshan 2nd Road, Yuzhong District, Chongqing

Study leader's address:

No. 136, Zhongshan 2nd Road, Yuzhong District, Chongqing

申请注册联系人邮政编码:

Applicant postcode:

研究负责人邮政编码:

Study leader's postcode:

申请人所在单位:

重庆医科大学附属儿童医院

Applicant's institution:

Children's Hospital of Chongqing Medical University

研究负责人所在单位:

重庆医科大学附属儿童医院

Affiliation of the Leader:

Children's Hospital of Chongqing Medical University

是否获伦理委员会批准:

Approved by ethic committee:

Yes

伦理委员会批件文号:

Approved No. of ethic committee:

(2025)年伦审(研)第(523)号

伦理委员会批件附件:

Approved file of Ethical Committee:

查看附件View

批准本研究的伦理委员会名称:

重庆医科大学附属儿童医院医学研究伦理委员会

Name of the ethic committee:

Institutional Review Board Children's Hospital of Chongqing Medical University

伦理委员会批准日期:

Date of approved by ethic committee:

2026-01-15 00:00:00

伦理委员会联系人:

蔡诗容

Contact Name of the ethic committee:

caishirong

伦理委员会联系地址:

重庆市渝中区中山二路136号

Contact Address of the ethic committee:

No. 136, Zhongshan 2nd Road, Yuzhong District, Chongqing

伦理委员会联系人电话:

Contact phone of the ethic committee:

+86 23 6837 0035

伦理委员会联系人邮箱:

Contact email of the ethic committee:

741223671@qq.com

研究实施负责(组长)单位:

重庆医科大学附属儿童医院

Primary sponsor:

Children's Hospital of Chongqing Medical University

研究实施负责(组长)单位地址:

重庆市渝中区中山二路136号

Primary sponsor's address:

No. 136, Zhongshan 2nd Road, Yuzhong District, Chongqing

试验主办单位(项目批准或申办者):

Secondary sponsor:

国家:

中国

省(直辖市):

重庆市

市(区县):

Country:

China

Province:

Chongqing

City:

单位(医院):

重庆医科大学附属儿童医院

具体地址:

重庆市渝中区中山二路136号

Institution
hospital:

Children's Hospital of Chongqing Medical University

Address:

No. 136, Zhongshan 2nd Road, Yuzhong District, Chongqing

经费或物资来源:

自选课题(自筹)

Source(s) of funding:

Self-Determined Research Topic

研究疾病:

进行性肌营养不良、心肌受损  

Target disease:

Progressive Muscular Dystrophy and Cardiac Involvement

研究疾病代码:

Target disease code:

研究类型:

观察性研究

Study type:

Observational study

研究所处阶段:

其它 

Study phase:

N/A

研究设计:

队列研究 

Study design:

Cohort study 

研究目的:

主要目的: (1)建立DMD患儿特异性iPSC细胞库:纳入携带不同Dystrophin基因突变的DMD患儿及性别、年龄匹配的健康对照者,采集其外周血,通过非整合重编程技术,建立并鉴定多个高质量的iPSC细胞系。 (2)实现高效的心肌细胞定向分化与纯化:通过体外基础实验,优化并建立稳定的、可重复的iPSC向心肌细胞(iPSC-CMs)的分化方案,获得高纯度(>90%)的、具有自发搏动功能的心肌细胞。 (3)在体外验证DMD心肌细胞的核心疾病表型:体外基础实验,在分子、结构和功能层面,系统证实DMD-iPSC-CMs能够再现DMD的关键病理特征,包括Dystrophin蛋白缺失、钙处理能力异常以及收缩功能受损。 次要目的: (1)探究表型-基因型关联:初步分析不同Dystrophin基因突变类型(如阅读框破坏类型)与iPSC-CMs疾病表型严重程度之间的潜在关联 (2)建立初步的药效评价体系:利用建立的DMD-iPSC-CMs体外模型,科进一步对药物进行初步测试,验证该平台在药效评估中的可行性。 (3)多层次表征疾病表型:利用高通量成像、膜片钳、转录组学等技术,深入挖掘DMD心肌细胞在电生理、基因表达谱等方面的特异性改变。  

Objectives of Study:

Primary Aims:To establish a patient-specific iPSC bank for DMD: Generate and characterize multiple high-quality induced pluripotent stem cell (iPSC) lines from peripheral blood of DMD patients carrying various dystrophin mutations and from matched healthy controls, using non-integrating reprogramming methods.To achieve efficient cardiac-directed differentiation and purification: Optimize and establish a robust, reproducible protocol for differentiating iPSCs into cardiomyocytes (iPSC-CMs), yielding high-purity (>90%) populations of spontaneously beating cells.To validate core disease phenotypes in DMD cardiomyocytes in vitro: Systematically demonstrate that DMD-iPSC-CMs recapitulate key pathological features of DMD at the molecular, structural, and functional levels, including the absence of dystrophin protein, abnormal calcium handling, and impaired contractile function. Secondary Aims:To investigate genotype-phenotype correlations: Perform a preliminary analysis of potential correlations between different types of dystrophin gene mutations (e.g., reading frame-disrupting types) and the severity of disease phenotypes in iPSC-CMs.To establish a preliminary drug efficacy evaluation platform: Utilizing the established DMD-iPSC-CM model, conduct initial testing of 1-2 known or candidate drugs to validate the feasibility of this platform for pharmacodynamic assessment.To characterize disease phenotypes at multiple levels: Employ high-throughput imaging, patch-clamp e

药物成份或治疗方案详述:

 

Description for medicine or protocol of treatment in detail:

 

纳入标准:

Inclusion criteria

排除标准:

1. DMD患儿组: (1) 合并除DMD基因突变以外基因异常; (2) 合并严重系统性疾病:如严重的先天性心脏病、肝肾功能衰竭、活动性自身免疫病、血液系统疾病等; (3) 近期有严重感染性疾病; (4) 患有经血液传播的传染病,如艾滋病(HIV)、乙型肝炎(HBV-DNA阳性)、丙型肝炎(HCV-RNA阳性)等。 2. 健康对照组: (1) 合并急、慢性疾病及血液传播的传染病; (2) 近期有感染及用药; (3) 入组前3个月内有过重大外伤、手术或献血史。

Exclusion criteria:

1. DMD Patient Group: (1) Presence of genetic abnormalities other than DMD gene mutations; (2) Severe systemic diseases: such as severe congenital heart disease, liver or kidney failure, active autoimmune diseases, hematological disorders, etc.; (3) Recent severe infectious diseases; (4) Blood-transmitted infectious diseases: such as HIV/AIDS, Hepatitis B (HBV-DNA positive), Hepatitis C (HCV-RNA positive), etc. 2. Healthy Control Group: (1) Acute or chronic diseases and blood-transmitted infectious diseases; (2) Recent infections or medication use; (3) History of major trauma, surgery, or blood donation within 3 months prior to enrollment.

研究实施时间:

Study execute time:

From 2026-06-20 00:00:00 To 2029-12-31 00:00:00  

征募观察对象时间:

Recruiting time:

From 2026-06-20 00:00:00 To 2029-12-31 00:00:00

干预措施:

Interventions:

组别:

DMD患儿组

样本量:

10

Group:

the DMD patient group

Sample size:

干预措施:

干预措施代码:

Intervention:

None

Intervention code:

组别:

健康对照组

样本量:

5

Group:

healthy control group

Sample size:

干预措施:

干预措施代码:

Intervention:

None

Intervention code:

研究实施地点:

Countries of recruitment and research settings:

国家:

中国

省(直辖市):

重庆市 

市(区县):

 

Country:

China

Province:

Chongqing

City:

单位(医院):

重庆医科大学附属儿童医院 

单位级别:

三级甲等 

Institution
hospital:

Children's Hospital of Chongqing Medical University

Level of the institution:

Tertiary A

测量指标:

Outcomes:

指标中文名:

诱导性多能干细胞

指标类型:

主要指标

Outcome:

Induced Pluripotent Stem Cell

Type:

Primary indicator

测量时间点:

规律随访时采集

测量方法:

分子与结构水平指标:Dystrophin蛋白表达缺失 (1)Western Blot:DMD组iPSC-CMs中检测不到或仅有严重截短的Dystrophin蛋白条带,而对照组可见清晰条带。 (2)免疫荧光染色:DMD组iPSC-CMs的细胞膜(肌膜)上无Dystrophin蛋白信号,而对照组有清晰的膜定位。 (3)相关蛋白复合物破坏:免疫荧光或Western Blot显示DMD组iPSC-CMs中

Measure time point of outcome:

Obtained as part of the standard follow-up protocol

Measure method:

1. Molecular and Structural Level Indicators: Absence of Dystrophin Protein Expression(1) Western Blot: Dystrophin protein is undetectable or only a severely truncated band is observed in DMD group iPSC-CMs, whereas a clear band is present in the control group.(2) Immunofluorescence Staining: No dystrophin protein signal is detected at the cell membrane (sarcolemma) of DMD group iPSC-CMs, in contrast to the distinct membrane localization seen in the control group.(3) Disruption of Associated Pro

指标中文名:

iPSC建系成功率

指标类型:

次要指标

Outcome:

iPSC line establishment success rate

Type:

Secondary indicator

测量时间点:

测量方法:

Measure time point of outcome:

Measure method:

采集人体标本:

Collecting sample(s)
from participants:

标本中文名:

外周静脉血

组织:

Sample Name:

Peripheral venous blood

Tissue:

人体标本去向

使用后销毁  

说明

Fate of sample:

Destruction after use  

Note:

征募研究对象情况:

Recruiting status:

尚未开始

Not yet recruiting

年龄范围:

Participant age:

最小 Min age 0 years
最大 Max age years

性别:

男女均可

Gender:

Both

随机方法(请说明由何人用什么方法产生随机序列):

Randomization Procedure (please state who generates the random number sequence and by what method):

None

是否公开试验完成后的统计结果:

Calculated Results after the Study Completed public access:

不公开/Private

盲法:

Blinding:

None

是否共享原始数据:

IPD sharing

否No

共享原始数据的方式(说明:请填入公开原始数据日期和方式,如采用网络平台,需填该网络平台名称和网址):

在经过申请情况下可通过通讯作者分享数据集

The way of sharing IPD”(include metadata and protocol, If use web-based public database, please provide the url):

The dataset can be shared by the corresponding author upon request.

数据采集和管理(说明:数据采集和管理由两部分组成,一为病例记录表(Case Record Form, CRF),二为电子采集和管理系统(Electronic Data Capture, EDC),如ResMan即为一种基于互联网的EDC:

将通过病历记录表、电子采集和管理系统进行数据的采集和管理

Data collection and Management (A standard data collection and management system include a CRF and an electronic data capture:

Data will be prospectively collected and managed using standardized case report forms (CRFs) and an electronic data capture (EDC) system.

数据与安全监察委员会:

Data and Safety Monitoring Committee:

有/Yes

注册人:

Name of Registration:

 2026-06-12 16:23:29