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审核状态: Project audit state: |
通过审核 Successful |
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注册号: Registration number: |
ChiCTR2600126646 |
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最近更新日期: Date of Last Refreshed on: |
2026-06-12 16:23:29 |
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注册时间: Date of Registration: |
2026-06-12 00:00:00 |
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注册号状态: |
预注册 |
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Registration Status: |
Prospective registration |
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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 |
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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 |
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注册题目简写: |
源于“干细胞”的DMD心脏病研究 |
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English Acronym: |
Stem Cell-Based Research into DMD Heart Disease |
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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 |
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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 |
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研究课题代号(代码): Study subject ID: |
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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: |
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申请注册联系人: |
洪思琦 |
研究负责人: |
洪思琦 |
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Applicant: |
SiqiHong |
Study leader: |
Siqi Hong |
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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 |
+86 23 6362 2984 |
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申请注册联系人传真 : Applicant Fax: |
研究负责人传真: Study leader's fax: |
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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 |
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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): |
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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 |
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Applicant address: |
No. 136, Zhongshan 2nd Road, Yuzhong District, Chongqing |
Study leader's address: |
No. 136, Zhongshan 2nd Road, Yuzhong District, Chongqing |
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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: |
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申请人所在单位: |
重庆医科大学附属儿童医院 |
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Applicant's institution: |
Children's Hospital of Chongqing Medical University |
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研究负责人所在单位: |
重庆医科大学附属儿童医院 |
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Affiliation of the Leader: |
Children's Hospital of Chongqing Medical University |
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是否获伦理委员会批准: |
是 |
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Approved by ethic committee: |
Yes |
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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 |
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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 |
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Name of the ethic committee: |
Institutional Review Board Children's Hospital of Chongqing Medical University |
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伦理委员会批准日期: Date of approved by ethic committee: |
2026-01-15 00:00:00 | ||
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伦理委员会联系人: |
蔡诗容 |
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Contact Name of the ethic committee: |
caishirong |
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伦理委员会联系地址: |
重庆市渝中区中山二路136号 |
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Contact Address of the ethic committee: |
No. 136, Zhongshan 2nd Road, Yuzhong District, Chongqing |
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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 |
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研究实施负责(组长)单位: |
重庆医科大学附属儿童医院 |
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Primary sponsor: |
Children's Hospital of Chongqing Medical University |
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研究实施负责(组长)单位地址: |
重庆市渝中区中山二路136号 |
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Primary sponsor's address: |
No. 136, Zhongshan 2nd Road, Yuzhong District, Chongqing |
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试验主办单位(项目批准或申办者): Secondary sponsor: |
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经费或物资来源: |
自选课题(自筹) |
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Source(s) of funding: |
Self-Determined Research Topic |
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研究疾病: |
进行性肌营养不良、心肌受损 |
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Target disease: |
Progressive Muscular Dystrophy and Cardiac Involvement |
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研究疾病代码: |
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Target disease code: |
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研究类型: |
观察性研究 |
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Study type: |
Observational study |
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研究所处阶段: |
其它 | ||||||||||||||||||||||
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Study phase: |
N/A |
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研究设计: |
队列研究 |
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Study design: |
Cohort study |
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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。 |
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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 |
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药物成份或治疗方案详述: |
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Description for medicine or protocol of treatment in detail: |
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纳入标准: |
1. DMD患儿组 (1) 经临床特征和基因检测(MLPA或高通量测序等方法)明确诊断为杜氏肌营养不良(DMD)的患儿; (2) 拥有近期(过去6个月内)相对完整的临床随访记录,包括但不限于运动功能评估(如North Star门诊评估)、心脏功能评估(心脏超声、心电图)等; (3) 患儿的法定监护人完全了解研究目的、方法及可能的风险,并自愿签署书面知情同意书。 2. 健康对照组 (1) 健康状况:经病史询问及必要的体检检查,确认为健康的男性个体; (2) 年龄匹配:年龄与DMD患儿组相匹配; (3) 无肌肉疾病家族史:无神经肌肉疾病(特别是肌营养不良症)的个人史及家族史; (4) 知情同意:其法定监护人完全了解研究目的并自愿签署书面知情同意书,同时尽可能征得志愿者本人的口头同意。 |
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Inclusion criteria |
1. DMD Patient Group: (1) Diagnosis: Children diagnosed with Duchenne Muscular Dystrophy (DMD) based on clinical features and genetic testing (e.g., MLPA or high-throughput sequencing); (2) Clinical Records: Possession of relatively complete clinical follow-up records within the past six months, including but not limited to motor function assessments (e.g., North Star Ambulatory Assessment), cardiac function evaluations (echocardiography, ECG), etc.; (3) Informed Consent: Legal guardians fully understand the study's purpose, methods, and potential risks, and voluntarily sign the written informed consent form. 2. Healthy Control Group: (1) Health Status: Healthy male individuals confirmed by medical history inquiry and necessary physical examinations; (2) Age Matching: Age-matched with the DMD patient group; (3) No Family History of Muscle Diseases: No personal or family history of neuromuscular diseases (especially muscular dystrophy); (4) Informed Consent: Legal guardians fully understand the study purpose and voluntarily sign the written informed consent form, and the volunteer's oral assent is also obtained whenever possible. |
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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。 |
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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. |
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研究实施时间: Study execute time: |
从 From 2026-06-20 00:00:00至 To 2029-12-31 00:00:00 |
征募观察对象时间: Recruiting time: |
从 From 2026-06-20 00:00:00 至 To 2029-12-31 00:00:00 |
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干预措施: Interventions: |
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研究实施地点: Countries of recruitment and research settings: |
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测量指标: Outcomes: |
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采集人体标本:
Collecting sample(s)
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征募研究对象情况: Recruiting status: |
尚未开始 Not yet recruiting |
年龄范围: Participant age: |
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性别: |
男女均可 |
Gender: |
Both |
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随机方法(请说明由何人用什么方法产生随机序列): |
无 |
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Randomization Procedure (please state who generates the random number sequence and by what method): |
None |
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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 |
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盲法: |
无 |
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Blinding: |
None |
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是否共享原始数据: IPD sharing |
否No |
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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 |
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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. |
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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 |
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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. |
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数据与安全监察委员会: Data and Safety Monitoring Committee: |
有/Yes |