用人类细胞构建三维骨髓组织模型

Core Insights - A research team from the University of Basel has developed a highly realistic 3D bone marrow tissue model using human cells, which replicates the complex structures found in bone marrow, providing a new platform for blood cancer research, drug testing, and reducing reliance on animal testing [1][2]. Group 1: Research and Development - The new model utilizes hydroxyapatite as a scaffold combined with induced pluripotent stem cells, allowing for the cultivation of a 3D bone marrow tissue that maintains human blood generation activity for several weeks [1]. - The model's dimensions are 8 millimeters in diameter and 4 millimeters in thickness, closely resembling the cellular composition and spatial structure of real human tissue [1]. Group 2: Implications for Medicine - This research marks a significant advancement in the field of regenerative medicine and translational research, potentially transforming disease research, high-throughput drug screening, and personalized treatment [2][3]. - The technology may enable the creation of personalized bone marrow models from patients' own cells, allowing doctors to test various therapies in advance to tailor optimal treatment plans for blood cancer patients [2]. Group 3: Ethical Considerations - The new model aligns with the ethical principles of "replacement, reduction, and refinement" in research, aiming to decrease the dependence on animal testing in blood cancer studies [1][3].