Project 2: Delta Stromal Ecology of NSCLC

项目2摘要 项目2将调查在收购期间肿瘤和间质隔室的变化 对ALK和KRAS靶向治疗的抵抗力，特别强调 在多个实验模型中观察到的基质壁龛。尽管越来越多的人意识到 间质对肿瘤细胞靶向治疗敏感性的影响尚无定论 概念框架和实验管道，以解释这种对进化耐药性的影响。 混淆了挑战，获得性抵抗力不能仅仅通过前后快照来理解 分析肿瘤细胞对治疗的敏感性、间质与肿瘤的比率以及间质的成分和作用 在治疗过程中会发生动态变化。为了理解获得性抵抗力的定义，我们 将对肿瘤内的时间和空间表型变化进行系统水平的表征 间质间隔，包括增殖/死亡和克隆动力学的变化。这些变化将是 通过实验和建模工具的仔细集成，在硅胶模型的形式主义中捕获。 模型的质量和实用性将通过做出实验上可检验的预测来评估。跟随 校准后，这些模型将被用于寻找优化长期联合治疗的新策略 减刑。将在ALK+NSCLC异种移植模型中进行初始模型开发和校准 这是我们最近跨学科研究的重点。随后，我们将利用管道来获得 对ALK+和ALK+的其他异种移植和同基因模型的生态进化动力学的理解 KRASG12C非小细胞肺癌。这些研究将有助于建立开发所需的强大的知识库 新颖而有影响力的翻译策略。

Project 2 abstract Project 2 will investigate the changes in neoplastic and stromal compartments during the acquisition of resistance to ALK and KRAS targeting therapies, with specific emphasis on the therapy-sheltering impact of the stromal niche, observed in multiple experimental models. Despite the growing appreciation of the potential contribution of stromal on the sensitivity of tumor cells to targeted therapies, there are no established conceptual frameworks and experimental pipelines to account for this effect on evolving resistance. Confounding the challenge, acquired resistance cannot be understood just with before-after snapshot analyses, as the sensitivity of tumor cells to therapies, stroma-tumor ratio, and stromal composition and effect are dynamically changing over the course of treatment. To understand the Decology of acquired resistance we will perform system-level characterization of temporal and spatial phenotypic changes within the tumor and stromal compartments, including changes in proliferation/death and clonal dynamics. These changes will be captured in the formalism of in silico models through careful integration of experimental and modeling tools. The quality and utility of the models will be assessed by making experimentally testable predictions. Following calibration, the models will be used to find novel strategies for combination therapies that optimize long-term remission. Initial model development and calibration will be performed in a xenograft model of ALK+ NSCLC that has been the focus of our recent interdisciplinary studies. Subsequently, we will use the pipelines to gain an understanding of the eco-evolutionary dynamics of other xenograft and syngeneic models of ALK+ and KRASG12C NSCLC. These studies will help develop the robust knowledge base required for the development of novel and impactful translational strategies.