Modeling and targeting tumor-immune signaling interactions in tumor microenvironment

肿瘤微环境中肿瘤免疫信号相互作用的建模和靶向

• 批准号: 10659993
• 负责人: Fuhai Li
• 金额: $ 35.06万
• 依托单位: WASHINGTON UNIVERSITY
• 依托单位国家: 美国
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-05-16 至 2027-02-28
• 项目状态: 未结题
• 来源: https://reporter.nih.gov/project-details/10659993
• 关键词: 3-Dimensional; Artificial Intelligence; Atlases; Biological Assay; CRISPR library; Cells; Chemoresistance; Coculture Techniques; Communication; Communities; Complex; Data; Data Set; Development; Diagnosis; Disease; Drug Combinations; Feedback; Fibroblasts; Genetic; Genetic Transcription; Heterogeneity; Human; Immune; Immune signaling; Immunotherapy; In Vitro; Individual; Knock-out; Knowledge; Malignant Neoplasms; Measurable; Measures; Modeling; Molecular Target; Mus; Neoplasm Metastasis; Pancreatic Ductal Adenocarcinoma; Patients; Pharmaceutical Preparations; Play; Process; Proliferating; Research; Resources; Role; Signal Pathway; Signal Transduction; Systems Biology; Technology; Time; Training; Tumor Tissue; Tumor-Associated Process; Tumor-associated macrophages; Validation; angiogenesis; cancer genetics; cell type; effective therapy; improved; in vivo; migration; mouse model; neoplastic cell; new therapeutic target; novel; pancreatic ductal adenocarcinoma model; response; restraint; single-cell RNA sequencing; success; targeted treatment; tool; treatment response; tumor; tumor growth; tumor microenvironment; tumor progression

Project Summary Tumor-stroma/immune cell signaling communications within the tumor microenvironment (TME) play important roles in tumor development and responses to targeted and immunotherapies. However, our knowledge of complex signaling communications within TME, and their roles in tumor development, drug and immunotherapy response is limited. Effective molecular targets are still missing that can inhibit the tumor- stroma signaling communications. Single cell RNA sequencing (scRNA-seq) has been being a powerful technology to capture transcriptional changes in individual tumor, stroma, immune cells within TME. While scRNA-seq datasets of human cancer are rapidly growing in number, which is leading to many basic and translational discoveries, the study of dynamic tumor-stroma signaling communications is limited. Limiting factors include: 1) static and single time-point snapshots of the complex interactions within the TME, and 2) difficulty in perturbing a large number of related signaling targets; and measuring corresponding functional effects to these perturbations in mouse or tumor tissues (to identify novel therapeutic targets and treatments). To resolve these challenges, in this study, we propose to combine the cutting-edge technologies, including novel artificial intelligence (AI) models, scRNA-seq, crispr-based single or double knockouts (CDKOs), 3D tumor-CAF-TAM co-culture assays, and genetic mouse models, in a systems biology manner. Specifically, (in Aim 1), we will develop novel network AI models using valuable large sets of scRNA-seq data of PDAC human tumors at WashU to identify static core tumor-CAF-TAM interaction (TCTi) signaling networks (multi-cell intra- /inter-cellular signaling networks of TCTi); and an initial set of anti-TCTi targets. In Aim 2, we will further develop another network AI model (M-Step) to infer the better anti-TCTi targets using the functional validation feedbacks in Aim 3; and predict synergistic drug combinations (inhibiting multiple key anti-TCTi targets). In Aim 3, the predicted targets and drugs will be efficiently evaluated using scalable 3D Tumor-CAF-TAM co-culture assays and crispr-based knockouts (E-step) with 3 measurable metrics, i.e., tumor proliferation, migration, angiogenesis. The M-step (modeling) and E-step (validation) forms an E-M process to identify key anti- TCTi targets and drugs iteratively. We will apply these AI models in Pancreatic ductal adenocarcinoma (PDAC) because 1) there have been very limited responses to immunotherapy; 2) no effective treatment; 3) nearly all patients will develop chemo-resistant and metastatic tumors within 2 years of diagnosis. Also (feasibility), 4) we have a strong cross-disciplinary team studying the PDAC TME (supported by NCI SPORE and human tumor atlas network (HTAN)), with the valuable state-of-the-art resources. The success of this study will identify novel anti-tumor-TAM-CAF targets and drug cocktails for PDAC treatment. The AI models, supporting the novel E-M systems biology, can be applied to other cancers and diseases.

项目总结