溶瘤病毒
Search documents
Cell:让肿瘤“过敏”,浙江大学顾臻团队发明“肥大细胞”载药平台,增强癌症免疫治疗
生物世界· 2025-12-10 00:11
Core Viewpoint - A research team from Zhejiang University has developed a novel cancer immunotherapy platform by repurposing mast cells, traditionally involved in allergic reactions, to deliver anti-cancer drugs directly to tumor sites, enhancing the immune response against cancer [2][5]. Group 1: Research Background and Methodology - The study published in the journal Cell describes a targeted therapy platform using engineered mast cells that act as "couriers" to deliver anti-tumor drugs by utilizing tumor-associated antigens as "allergens" [2][5]. - The engineered mast cells, sensitized with IgE antibodies specific to tumor markers, can migrate to tumor sites and trigger a rapid immune response, transforming "cold tumors" into "hot tumors" that are more susceptible to immune attack [5][11]. Group 2: Drug Delivery Mechanism - The engineered IgE-MC platform can carry various therapeutic agents, including oncolytic viruses, chemotherapy drugs, immune checkpoint inhibitors, and mRNA vaccines, with a focus on delivering oncolytic viruses [7][9]. - The oncolytic viruses can selectively infect and lyse tumor cells, and the IgE-MC protects these viruses from being cleared by the immune system during intravenous administration [9][10]. Group 3: Efficacy and Safety - In mouse models, treatment with OV@IgE-MC showed significant efficacy, with 60% of mice surviving beyond 25 days in the B16F10-OVA melanoma model, compared to a control group that all died within 15 days [11][12]. - Safety assessments indicated that injected IgE-MC are cleared within two weeks without disrupting mast cell homeostasis or inducing systemic allergic reactions, and they reduced liver toxicity compared to free oncolytic viruses [16][15]. Group 4: Future Prospects - The technology allows for personalized cancer treatment by matching specific IgE antibodies to patient tumor markers, simplifying the preparation process compared to traditional CAR-T cell therapies [18][19]. - The research team plans to establish a screening process for patient-specific IgE and explore combinations with existing immunotherapies, aiming to bring this innovative "tumor allergy" therapy from the lab to clinical application [19][18].
520临床试验日:“从纸到云”时代,如何破解临床成果转化堵点
2 1 Shi Ji Jing Ji Bao Dao· 2025-05-20 10:39
Group 1: Industry Overview - The biopharmaceutical industry is a strategic emerging industry crucial to national security and public health, currently facing challenges in translating basic research into clinical applications [1] - Clinical trials are identified as a core driver for upgrading the biopharmaceutical industry, with significant room for improvement in resource integration and efficiency [1][2] - The number of IND applications for new drugs has been increasing, reaching 1,241 in 2023, a 31.7% year-on-year growth, marking a five-year high [3] Group 2: Clinical Trial Development - Clinical trials are essential for validating and commercializing research outcomes, serving as a key step for companies and hospitals to enhance their clinical research capabilities [2] - The number of new drug clinical trials in China has nearly doubled from 2018-2020 (2,758 trials) to 2021-2023 (5,216 trials), with antibody-drug conjugates and bispecific antibodies showing significant growth in trial numbers [3][4] - In 2023, China registered 270 clinical trials, surpassing the United States' 222 trials during the same period, indicating a recovery in clinical trial activity [4] Group 3: Quality Control and Regulatory Framework - The quality of clinical trials is emphasized as a critical factor, with ongoing improvements in quality management systems and regulatory standards being necessary for high-quality development [5][6] - The implementation of ICH E6 (R3) from January 2025 is expected to reshape clinical trial design and execution processes, significantly impacting industry quality systems [10] - A comprehensive quality control system is recommended to ensure data integrity and participant safety throughout the clinical trial lifecycle [6][11] Group 4: Digital Transformation in Clinical Trials - The clinical trial industry is entering a digital era, with the integration of new technologies such as artificial intelligence and digital solutions to enhance efficiency and quality [7][8] - Nearly 80% of recent studies have utilized electronic clinical outcome assessments (eCOA), indicating a shift towards more digitalized and automated clinical trials [7] - The use of electronic data capture (EDC) systems is highlighted as a core entry point for data management, improving accuracy and processing efficiency [13]