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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: |
ChiCTR2600124564 |
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最近更新日期: Date of Last Refreshed on: |
2026-05-13 21:48:42 |
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注册时间: Date of Registration: |
2026-05-13 00:00:00 |
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注册号状态: |
补注册 |
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Registration Status: |
Retrospective registration |
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注册题目: |
TP53调控CD4+、CD8+T细胞在胃癌免疫微环境中浸润的机制研究 |
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Public title: |
Investigation into the regulatory mechanism of TP53 on the infiltration of CD4+ and CD8+ T cells in the immune microenvironment of gastric cancer |
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注册题目简写: |
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English Acronym: |
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研究课题的正式科学名称: |
TP53调控CD4+、CD8+T细胞在胃癌免疫微环境中浸润的机制研究 |
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Scientific title: |
Investigation into the regulatory mechanism of TP53 on the infiltration of CD4+ and CD8+ T cells in the immune microenvironment of gastric cancer |
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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: |
姚坤厚 |
研究负责人: |
姚坤厚 |
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Applicant: |
Yao Kunhou |
Study leader: |
Yao Kunhou |
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申请注册联系人电话: Applicant telephone: |
+86 13837811270 |
研究负责人电话: Study leader's telephone: |
+86 13837811270 |
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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: |
13837811270@126.com |
研究负责人电子邮件: Study leader's E-mail: |
yaokunhou@126.com |
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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: |
中国河南省开封市鼓楼区包公湖北路8号 |
研究负责人通讯地址: |
中国河南省开封市鼓楼区包公湖北路8号 |
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Applicant address: |
8 Baogonghu Road, Gulou District, Kaifeng, Henan, China |
Study leader's address: |
8 Baogonghu Road, Gulou District, Kaifeng, Henan, China |
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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: |
河南大学淮河医院 |
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Applicant's institution: |
Huaihe Hospital of Henan University |
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研究负责人所在单位: |
河南大学淮河医院 |
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Affiliation of the Leader: |
Huai He Hospital of Henan University |
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是否获伦理委员会批准: |
是/Yes |
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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: |
2025007 |
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: |
河南大学淮河医院临床科研伦理委员会 |
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Name of the ethic committee: |
Clinical Research Ethics Committee of Huaihe Hospital, Henan University |
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伦理委员会批准日期: Date of approved by ethic committee: |
2025-12-08 00:00:00 |
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伦理委员会联系人: |
侯婷婷 |
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Contact Name of the ethic committee: |
Hou Tingting |
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伦理委员会联系地址: |
中国河南省开封市鼓楼区包公湖北路8号 |
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Contact Address of the ethic committee: |
8 Baogonghu Road, Gulou District, Kaifeng, Henan, China |
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伦理委员会联系人电话: Contact phone of the ethic committee: |
+86 371 23906470 |
伦理委员会联系人邮箱: Contact email of the ethic committee: |
842752063@qq.com |
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研究实施负责(组长)单位: |
河南大学淮河医院 |
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Primary sponsor: |
Huai He Hospital of Henan University |
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研究实施负责(组长)单位地址: |
中国河南省开封市鼓楼区包公湖北路8号 |
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Primary sponsor's address: |
8 Baogonghu Road, Gulou District, Kaifeng, Henan, China |
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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: |
河南省卫生健康委员会联合共建项目 |
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Source(s) of funding: |
The collaborative project of Henan Provincial Health Commission |
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Target disease: |
Gastric cancer |
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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: |
病例对照研究 |
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Study design: |
Case-Control study |
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研究目的: |
胃癌作为消化系统常见肿瘤,是世界第五大恶性肿瘤,同时也是第三大癌症死亡原因,目前的治疗手段仍然很局限,治疗方式包括手术、放疗和化疗。由于胃癌临床症状不典型,起病隐匿,大部分患者确诊时已处于晚期, 5年总体生存率较低。随着医学技术的进步,靶向治疗以及免疫治疗已成为传统治疗之外的新型治疗方式。近年来,越来越多的证据支持免疫检查点抑制剂在晚期胃癌中的应用价值。浸润在肿瘤周围的淋巴细胞不仅有效应性CD8+T细胞或CD4+T细胞,而且含有大量的调节性T细胞,主要是CD4+CD25+T细胞。免疫检查点通过阻碍 T 细胞活化抑制抗肿瘤免疫反应,免疫检查治疗阻断了配体和受体相互作用,从而解除对 T 细胞的激活抑制, 增强了微环境抗肿瘤效应。细胞毒性 T 淋巴细胞相关抗原 4 和程序性死亡因子 1 是两种常用于免疫治疗的免疫检查点靶向分子。针对CTLA4或者PD1/PDL1的抗体已经在包括胃癌、膀胱癌、黑色素瘤、肺癌等多个肿瘤中证实有效。但是,在胃癌中,传统的免疫治疗似乎对这两种免疫检查点抑制剂的效果并不明显。我们预实验表明CD8+T、CD4+T细胞及巨噬细胞在胃癌中丰度明显高于正常组织,并且CD4+T 细胞高浸润组的无疾病生存明显高于低水平组。因此,探索调控胃癌免疫微环境中CD8+T、CD4+T 免疫细胞的相关分子作用机制具有重要的临床价值。肿瘤抑制基因P53,位于 17 号染色体,作为一个重要的抑癌基因,一直是肿瘤分子生物学领域的研究热点,它在细胞周期的阻滞、细胞的衰老、凋亡、分化及代谢过程中起着重要的作用,超过 50%的肿瘤中存在 TP53 基因的改变。TP53突变或缺失将导致细胞周期紊乱,细胞凋亡抑制,更重要的是将影响DNA损伤修复功能从而导致基因组不稳定,且与肿瘤免疫调节有关,如TP53激活可增强抗肿瘤免疫反应。同时,研究发现TP53突变的肿瘤显著增加PD-L1的表达,这些特点提示TP53突变肿瘤可能更容易进行免疫逃避。有研究发现 TP53突变状态与肿瘤微环境有关。TP53 突变的免疫原性是由复杂的动力学驱动,可能包括人类白细胞抗原在肿瘤或抗原提呈细胞上的表达、T细胞抗原受体的亲和性、T 细胞向肿瘤微环境的转运等。TMB是免疫检查点抑制剂疗效和预后的重要指标,我们预实验发现TP53基因表达与胃癌的TMB评分(肿瘤突变评分)呈正相关,并且TP53高表达的总体生存(OS)明显高于低表达组,这说明TP53是胃癌免疫治疗预后较好的重要标志物,并且可能在胃癌进展中扮演着重要作用。有趣的是,TP53的表达水平与CD8+T细胞、CD4+T 细胞细胞浸润水平呈显著正相关。这说明TP53调控CD8+T细胞、CD4+T 细胞在胃癌中的免疫浸润。综上所述,本项目提出假设:TP53通过调控CD8+T、CD4+T 细胞在胃癌免疫微环境中的免疫浸润的机制。本课题将从基因、细胞及动物模型层次研究TP53对肿瘤微环境CD8+T、CD4+T 细胞浸润的调控作用,并在人类胃癌组织标本中进行验证。本课题有助于揭示胃癌免疫微环境中CD8+T、CD4+T 细胞调控机制,亦可为胃癌免疫治疗提供新的靶点。本课题的完成将对充分了解胃癌免疫微环境中的具体调控机制及对寻找免疫治疗新策略具有重要的临床价值。 |
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Objectives of Study: |
This project proposed the hypothesis that TP53 regulates the immune infiltration of CD8+T and CD4+T cells in the immune microenvironment of gastric cancer. In this study, the regulation of TP53 on the infiltration of CD8+T and CD4+T cells in tumor microenvironment was studied from the level of gene, cell and animal model, and verified in human gastric cancer tissue specimens. This study helps to reveal the regulatory mechanism of CD8+T and CD4+T cells in the immune microenvironment of gastric cancer, and also provides a new target for immunotherapy of gastric cancer. The completion of this project will have important clinical value for fully understanding the specific regulatory mechanisms in the immune microenvironment of gastric cancer and searching for new strategies of immunotherapy. |
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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.行胃癌根治术患者; |
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Inclusion criteria |
1.Patients undergoing radical gastrectomy; |
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排除标准: |
1.新辅助放化疗者; |
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Exclusion criteria: |
1.Neoadjuvant radiotherapy and chemotherapy; |
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研究实施时间: Study execute time: |
从 From 2024-01-01 00:00:00至 To 2025-12-31 00:00:00 |
征募观察对象时间: Recruiting time: |
从From 2024-01-16 00:00:00 至 To 2024-10-08 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: |
结束 /Completed |
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 |
Yes |
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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): |
研究结束后半年;国家生物信息中心(https://www.cncb.ac.cn/) |
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The way of sharing IPD”(include metadata and protocol, If use web-based public database, please provide the url): |
Six months after the completion of the research; China National Center for Bioinformation (https://www.cncb.ac.cn/) |
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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: |
病理记录表,电子采集和管理系统 |
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Data collection and Management (A standard data collection and management system include a CRF and an electronic data capture: |
Pathology records table, electronic collection and management system |
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数据与安全监察委员会: Data and Safety Monitoring Committee: |
有/Yes |