Engineering personalized micro-tumor ecosystems

设计个性化微肿瘤生态系统

• 批准号: 9981696
• 负责人: Ali Khademhosseini
• 金额: $ 74.21万
• 依托单位: BRIGHAM AND WOMEN'S HOSPITAL
• 依托单位国家: 美国
• 财政年份: 2017
• 资助国家: 美国
• 起止时间: 2017-09-21 至 2022-07-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/9981696
• 关键词: 3-Dimensional; Accounting; Achievement; Address; Algorithms; Antibiotics; Antineoplastic Agents; Area; Autologous; Biocompatible Materials; Biological; Biological Assay; Biological Markers; Biomimetics; Biopsy; Bioreactors; Cancer Patient; Cause of Death; Cessation of life; Cetuximab; Characteristics; Clinical; Clinical Data; Colorectal Cancer; Complex; Consensus; Data; Development; Drug Combinations; Ecosystem; Engineering; Future; Glucose; Head and Neck Squamous Cell Carcinoma; Heterogeneity; Human; Hydrogels; In Vitro; Individual; KRAS2 gene; Lab-On-A-Chips; Liquid substance; Malignant Neoplasms; Metabolic; Microfluidics; Miniaturization; Modeling; Molecular Profiling; Nature; Needle biopsy procedure; Neoadjuvant Therapy; Outcome; Parents; Pathologic; Patient-Focused Outcomes; Patients; Pharmaceutical Preparations; Phenotype; Physiological; Prediction of Response to Therapy; Proteins; Publishing; Quality of life; Regimen; Rest; Screening for cancer; Serum; Specificity; Supplementation; System; Testing; Therapeutic; Therapeutic Agents; Training; Translating; Treatment Cost; Treatment Protocols; Tumor Tissue; Tumor stage; Tumor-Derived; United States; Variant; Work; Xenograft Model; base; cancer therapy; chemotherapy; cytokine; design; effective therapy; fluid flow; genetic profiling; genetic testing; humanized mouse; improved; in vivo; large scale data; machine learning algorithm; malignant breast neoplasm; miniaturize; novel; outcome prediction; patient response; personalized medicine; personalized screening; precision medicine; prevent; response; side effect; survival outcome; triple-negative invasive breast carcinoma; tumor; tumor heterogeneity; tumor microenvironment; tumor xenograft

Abstract Cancer is one of the leading causes of death in the United States, accounting for near 1 in every 4 deaths. However, despite the recent development of subtype-specific personalized therapy based on achievements in the fields of molecular and genetic profiling, many cancer treatments still have low efficacy which mostly arise from the limited ability to predict the patient tumor responses to therapeutic agents. The major reason that current therapeutics often cannot translate into a successful clinical outcomes is because of the complex tumor microenvironment and heterogeneity that limit the predictive power of the biomarker-guided strategies for chemotherapy. Therefore, the successful engineering of personalized three-dimensional (3D) tumor ecosystem that can recapitulate the tumor microenvironment and heterogeneity in vitro is strongly desired to accurately predict patients’ responses to anti-cancer drugs and thus further improve patient outcome. Here we propose to develop a personalized breast-cancer-ecosystem-on-a-chip platform for personalized screening of cancer chemotherapeutics with high accuracy by utilizing patient-derived tumor explant, defined tumor grade-matched biomaterial matrices and autologous patient serum to mimic patient-specific tumor hallmarks. The proposed cancer-ecosystem-on-a-chip will also be tightly regulated under physiological fluid dynamics. In this project, we have hypothesized that 1) the use of tumor explant will embrace the critical components of the tumor heterogeneity of the patient, 2) the combination of defined tumor grade-matched matrix, autologous patient serum, and a microfluidic bioreactor will prevent the phenotype alteration of the tumor explant, and 3) the integration of a machine-learning algorithm with the cancer-ecosystem-on-a-chip platform will provide more accurate, unbiased prediction of the patient responses to chemotherapeutics based on the data gathered from the engineered tumor model. Our preliminary results show that the combination of tumor explant culture and tumor-derived matrix constituents had predicted therapeutic responses with 100% sensitivity. Our preliminary results show high specificity throughout a range of cancers including breast cancer, colorectal cancer, and head and neck squamous cell carcinoma, and thus the findings can have broad applications, and can emerge as a paradigm shift in the management of cancer.

抽象的 癌症是美国的主要原因之一，占死亡人数的近四分之一。 然而，尽管最近基于以下成就开发了亚型特异性个性化治疗： 在分子和基因分析领域，许多癌症治疗方法仍然疗效较低，这主要是由于 由于预测患者肿瘤对治疗药物的反应的能力有限。目前的主要原因 由于肿瘤的复杂性，治疗通常无法转化为成功的临床结果 微环境和异质性限制了生物标志物引导策略的预测能力 化疗。因此，个性化三维（3D）肿瘤生态系统的成功工程 强烈需要能够准确地概括体外肿瘤微环境和异质性 预测患者对抗癌药物的反应，从而进一步改善患者的治疗效果。在此我们建议 开发个性化乳腺癌生态系统芯片平台，用于癌症的个性化筛查 利用患者来源的肿瘤外植体进行高精度化疗，确定肿瘤等级匹配 生物材料基质和自体患者血清来模拟患者特定的肿瘤标志。拟议的 芯片上的癌症生态系统也将在生理流体动力学下受到严格调节。在这个项目中，我们 假设 1) 肿瘤外植体的使用将包含肿瘤的关键成分 患者的异质性，2）定义的肿瘤分级匹配基质的组合，自体患者 血清和微流体生物反应器将防止肿瘤外植体的表型改变，3） 机器学习算法与癌症生态系统芯片平台的集成将提供更多 根据收集的数据准确、公正地预测患者对化疗的反应 工程肿瘤模型。我们的初步结果表明，肿瘤外植体培养与 肿瘤来源的基质成分以 100% 的灵敏度预测了治疗反应。我们的初步 结果显示，对包括乳腺癌、结直肠癌和头颅癌在内的一系列癌症具有高度特异性。 和颈部鳞状细胞癌，因此这些发现可以具有广泛的应用，并且可以作为 癌症治疗的范式转变。