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Cancer Cell:张泽民院士等通过单细胞筛选发现癌症免疫治疗新靶点——ADAM12
生物世界· 2026-01-16 00:18
Core Insights - The article discusses the challenges in clinical trials targeting cancer-associated fibroblasts (CAFs), which are crucial tumor-promoting factors, due to their inherent functional plasticity and the opaque regulatory circuits behind their heterogeneous phenotypes [2] Group 1: Research Findings - A study published in Cancer Cell identified ADAM12 as a fibroblast checkpoint that impedes anti-tumor immunity, with its deletion delaying tumor progression and making tumors more sensitive to immunotherapy [3] - The research team developed a systematic screening method based on complementary CRISPR interference (CRISPRi) and CRISPR activation (CRISPRa) to screen patient-derived fibroblasts [5] - The study found that the I-type interferon (IFN-I) response program is a primary antagonistic axis against TGF-β-driven tumor-promoting myofibroblast activation, with ADAM12 mediating this relationship [5] Group 2: Implications for Treatment - Deletion of ADAM12 triggers the IFN-I response program, reconfiguring the myofibroblast population into progenitor-like states, revitalizing T-cell-based immune responses, and inducing tumor rejection in various mouse models [5] - The research positions ADAM12 as a potential target for therapeutic interventions, paving the way for future treatment strategies [5][7] - The study emphasizes the conversion of TGF-β dependent myCAF programs into IFN-I response states to exert anti-tumor activity, enhancing T-cell infiltration and sensitivity to immunotherapy [7]
杨世辉教授团队与青岛能源所合作开发数字化克隆挑选平台,助力优质菌株筛选
Core Insights - The article discusses the development of an AI-driven digital cloning selection platform (Digital Colony Picker, DCP) for high-throughput single-cell screening, which addresses the challenges in microbial strain selection and industrial application [2][4]. Group 1: Technology Development - The DCP system utilizes three major technological innovations: micro-chamber separation culture, AI-assisted image recognition, and non-contact laser single-clone picking, enabling precise high-throughput screening of microbial multi-dimensional phenotypes [4][5]. - The DCP platform can independently culture individual microbial cells using a microfluidic chip with thousands of micro-chambers, allowing real-time monitoring of cell growth dynamics, metabolic activity, and morphological characteristics [5][6]. Group 2: Application and Results - In application validation, researchers successfully isolated a "super strain" of Zymomonas mobilis, which showed a 19.6% increase in lactic acid production and a 75.9% improvement in growth rate under 30 g/L lactic acid stress conditions [5]. - The superior phenotype of the isolated strain is linked to mutations and overexpression of the outer membrane transporter gene ZMOp39x027, enhancing lactic acid transmembrane transport capacity [5]. Group 3: Future Prospects - The DCP platform is expected to significantly accelerate the discovery of superior strains, providing strong technical support for metabolic engineering, environmental microbial resource exploration, and industrial strain optimization [5]. - The DCP platform works synergistically with the FlowRACS system, which excels in instantaneous snapshot/sorting capabilities, creating a comprehensive solution for functional strain discovery [6].