值得一提的是，这种方法无需依赖TCR分子的三维结构信息。只需对筛选出的多个"关键按钮"进行同步 改造，即可增强TCR分子"抓住"癌细胞的能力。经改造的T细胞活化水平更高、杀伤力更强，且能精准 辨别敌我，避免误伤健康细胞。 本报记者 郜阳 在我们的人体免疫系统中，T细胞犹如一支守护健康的"特种部队"，负责执行全身细胞的"安全检查"。 而T细胞表面的T细胞受体（TCR）分子，正是执行任务的核心"安检仪"。科学家从众多的TCR分子"安 检仪"中，筛选出能精准识别癌细胞的型号，并将其"装配"到癌症患者的T细胞上，从而让免疫系统能够 精确锁定并清除癌细胞。 然而，天然TCR分子的"识别灵敏度"有限，一些狡猾的癌细胞可能成为"漏网之鱼"！针对这一难题，中 国科学院分子细胞科学卓越创新中心（生物化学与细胞生物学研究所）赵祥研究团队与合作者开发 出"组氨酸扫描法"，能快速定位TCR分子中负责识别癌细胞并启动清除程序的"关键位点"。 对这些位点进行"改造升级"后，TCR分子便能化身为高灵敏度的增强版"安检仪"，显著提升了T细胞清 除癌细胞的能力。该策略已在小鼠实验中展现出良好的抗癌效果，相关研究成果于北京时间今天在线发 表于国 ...

然而，天然的TCR分子的"识别灵敏度"有限，一些"狡猾"的癌细胞可能成为"漏网之鱼"。 中新社上海2月19日电 (记者 郑莹莹)中国科学院分子细胞科学卓越创新中心的赵祥研究团队与合作者以 小鼠为动物模型，共同开发出新方法，显著提升了T细胞清除癌细胞的能力。相关研究成果于北京时间 2月19日在线发表于国际学术期刊《细胞》(Cell)。 在人体免疫系统中，T细胞就像一支守护健康的"特种部队"，负责执行全身细胞的"安全检查"。T细胞表 面的T细胞受体(TCR)分子，正是执行任务的核心"安检仪"。科研人员从众多的TCR分子"安检仪"中筛选 出能精准识别癌细胞的型号，并将其"装配"到癌症患者的T细胞上，从而让免疫系统精确锁定并清除癌 细胞。 在科研人员对这些位点进行"改造升级"后，TCR分子便化身为高灵敏度的增强版"安检仪"，T细胞清除 癌细胞的能力因此得到显著提升。 科研团队开发出"组氨酸扫描法"，能快速定位TCR分子中负责识别癌细胞并启动相关清除程序的关键位 点。 目前，该研究已在小鼠实验中取得良好效果，为开发新一代高效、精准的癌症免疫疗法提供了新思路。 (完) ...

Core Insights - The establishment of the "Cell Preparation Quality Evaluation Innovation Center" aims to enhance the quality control of cell-based therapies and address industry challenges through innovative research and collaboration [1][2][3] Group 1: Research and Development Initiatives - The "National Key Laboratory of Drug Regulatory Science" has approved a project focusing on AI-driven dynamic rapid testing methods for stem cell preparation quality control, utilizing self-developed AI technology [1] - The project "Lens-free Digital Chip Microscopy Technology and Biomedical Applications" has been recognized as one of the top ten technological advancements in the biomedicine field in Jiangsu Province for 2024 [1] Group 2: Collaboration and Strategic Goals - The Jiangsu Provincial Drug Supervision and Inspection Research Institute emphasizes the importance of collaboration in technology support, standard formulation, and platform construction for the innovation center [2] - The center aims to bridge the gaps in the "R&D-production-regulation" chain, facilitating high-quality development in the cell therapy industry to meet urgent patient needs [2][3] Group 3: Quality Assurance and Industry Standards - The focus on quality evaluation research for cell preparations is expected to fill industry gaps and provide comprehensive testing services for cell drug developers [3] - The Jiangsu Provincial Drug Supervision and Inspection Research Institute plans to enhance its technical capabilities to ensure a robust quality control system throughout the drug lifecycle [3]

Core Viewpoint - The research published by Yale University confirms the presence of T cells in the healthy brains of mice and humans, specifically in the subfornical organ (SFO), indicating that T cells can reside in the brain under normal conditions, contrary to previous beliefs about the blood-brain barrier and immune cell isolation [3][11]. Group 1: Research Findings - The study reveals that T cells in the SFO are enriched and play a crucial role in monitoring gut and fat tissue information, which is essential for regulating feeding and behavior [3][11]. - T cells in the SFO are distinct from those in the meninges, as they express proteins like CXCR6 that allow them to remain in brain tissue and secrete immune signaling proteins such as IFNγ [8][11]. - The research indicates a relationship between dietary habits and the quantity of T cells in the brain, with high-fat diets leading to an increase in T cells in both fat tissue and the brain [8][9]. Group 2: Mechanisms of Interaction - The study demonstrates that fasting increases T cell numbers in the brain while decreasing them in fat tissue, suggesting that dietary intake can dynamically regulate T cell migration to the central nervous system [9][11]. - Antibiotic intervention to deplete gut microbiota resulted in a significant reduction of T cells in the brain, indicating that gut microbiota may influence immune cell homeostasis in the central nervous system [9][11]. - The presence of T cells in the brain is linked to feeding behavior, as T cell-deficient mice took longer to find food when hungry compared to normal mice, highlighting their role in foraging and eating behaviors [9][11].