Targeting the DNA damage response with PARP and ATR inhibition to potentiate cytotoxicity and improve efficacy of immune checkpoint blockade in IDH mutant gliomas

通过 PARP 和 ATR 抑制来靶向 DNA 损伤反应，以增强细胞毒性并提高 IDH 突变神经胶质瘤中免疫检查点阻断的功效

• 批准号: 10678850
• 负责人: JUAN C VASQUEZ
• 金额: $ 23.13万
• 依托单位: YALE UNIVERSITY
• 依托单位国家: 美国
• 财政年份: 2021
• 资助国家: 美国
• 起止时间: 2021-08-01 至 2026-07-31
• 项目状态: 未结题
• 来源: https://reporter.nih.gov/project-details/10678850
• 关键词: ATR gene; Advisory Committees; BRCA deficient; Cancer Biology; Cell Cycle Progression; Cell physiology; Cellular biology; Citric Acid Cycle; Clinical Trials Design; Computational Biology; DNA; DNA Damage; DNA Double Strand Break; DNA Repair; DNA Repair Pathway; Defect; Dioxygenases; Double Strand Break Repair; Evaluation; Family; Fumarates; Funding; Genes; Genetic; Genomic Instability; Glioblastoma; Glioma; Goals; Grant; Histones; Hypermethylation; Immune; Immune Targeting; Immune checkpoint inhibitor; Immunocompetent; Immunocompromised Host; Immunologics; Immunooncology; Immunotherapy; In Vitro; Inherited; Interferons; Isocitrate Dehydrogenase; Laboratories; Laboratory Research; Link; Literature; Lysine; Malignant Neoplasms; Mediating; Mentors; Mentorship; Methods; Methylation; Modeling; Molecular Biology; Morbidity - disease rate; Mus; Mutation; Nature; Pathway interactions; Pediatrics; Phenotype; Phosphotransferases; Physicians; Poly(ADP-ribose) Polymerase Inhibitor; Poly(ADP-ribose) Polymerases; Production; Publishing; Reporting; Research; Research Personnel; Research Project Grants; Research Training; Resources; Scientist; Series; Signal Transduction; Site; Stimulator of Interferon Genes; Succinates; T-Cell Depletion; Testing; Time; Training Programs; Translational Research; Triplet Multiple Birth; Tumor Immunity; Up-Regulation; Yale Cancer Center; anti-PD-1; anti-PD1 therapy; cancer cell; cancer therapy; carcinogenesis; checkpoint inhibition; clinical efficacy; comparative efficacy; cytotoxicity; early phase clinical trial; experience; experimental study; homologous recombination; immune activation; immune checkpoint blockade; immunogenic; immunogenic cell death; immunogenicity; immunoregulation; improved; in vivo; inhibitor; innate immune pathways; kinase inhibitor; knockout gene; medical schools; member; metaplastic cell transformation; mouse model; multidisciplinary; mutant; neoantigens; neuroimmunology; novel; pre-clinical; preclinical study; preclinical trial; professor; programmed cell death ligand 1; programs; recruit; repaired; response; skills; small molecule; success; symposium; synergism; translational medicine; tumor; tumor immunology; tumor microenvironment; tumor-immune system interactions

PROJECT SUMMARY/ABSTRACT Candidate. Dr. Vasquez is an Assistant Professor of Pediatrics at the Yale School of Medicine and a member of the Yale Cancer Center Cancer Immunology Program and trainee in the Yale Immuno-Oncology Training Program. This proposal is focused on the link between DNA damage and tumor immunogenicity and will provide Dr. Vasquez with essential research skills, such as methods for interrogating DNA repair and immune pathways and pre-clinical studies with syngeneic mouse models. Dr. Vasquez will take advanced coursework in cancer immunology, cellular and molecular biology of cancer, computational biology, and early phase clinical trial design. He will also participate in local and national cancer biology and immunology conferences. Dr. Vasquez’s primary mentor, Dr. Ranjit Bindra, is a physician-scientist with an R01-funded research laboratory and an expert in leveraging DNA repair pathways in the treatment of cancer. Dr. Vasquez’s advisory committee includes Dr. Hideho Okada, a physician-scientist and expert in preclinical glioma immunotherapy research, Dr. Gary Kupfer, a physician-scientist with expertise in the study of genomic instability in cancer and Dr. David Hafler, a physician-scientist and pioneer in neuro-immunology. This multidisciplinary mentorship team, along with the outstanding scientific resources available at Yale, will allow Dr. Vasquez to acquire additional mentored research experience so that he may become an independently funded investigator. Research Project. Immune checkpoint inhibitors (ICi) have, thus far, been ineffective in the treatment of glioma, largely due to the immunologically “cold” microenvironment and the low number of neoantigens. Our group recently discovered that IDH1/2 mutations, which are common in gliomas, induce homologous recombination (HR) defects and confer sensitivity to DNA damage response inhibitors (DDRi), such as poly (ADP-ribose) polymerase (PARP) inhibitors and Ataxia telangiectasia and Rad3-related (ATR) kinase inhibitors. Emerging evidence shows that inherited or acquired DDR defects increase tumor immunogenicity through DNA damage-induced activation of immune recognition pathways. Therefore, the central hypothesize of my proposal is that mutant IDH1/2-induced DNA repair defects can be exploited with PARP and ATR kinase inhibition to induce host and cancer cell-intrinsic immune activation and improve ICi response in otherwise poorly immunogenic gliomas. In Aim 1, we will perform a series of in vitro and in vivo studies to test the potential efficacy of combined PARP and ATR inhibition against IDH1/2-mutant glioma and explore DNA repair mechanisms contributing to this synthetic lethality. In Aim 2, we will probe the immune-mediated mechanisms of DDRi synthetic lethality and define the tumor-intrinsic and host-dependent immunomodulatory effects of combined PARP and ATR inhibition. In Aim 3, we will determine whether PARP and ATR inhibition, alone or in combination, improves the response to anti-PD-1 in vivo.

项目概要/摘要 Vasquez 博士是耶鲁大学医学院儿科助理教授和成员。 耶鲁大学癌症中心癌症免疫学项目的博士和耶鲁大学免疫肿瘤学培训的实习生 该计划的重点是 DNA 损伤和肿瘤免疫原性之间的联系。 为 Vasquez 博士提供必要的研究技能，例如研究 DNA 修复和免疫的方法 Vasquez 博士将学习同基因小鼠模型的途径和临床前研究。 癌症免疫学、癌症细胞和分子生物学、计算生物学和早期临床 他还将参加当地和国家癌症生物学和免疫学会议。 Vasquez 的主要导师 Ranjit Bindra 博士是一位医师兼科学家，拥有 R01 资助的研究实验室 Vasquez 博士的咨询委员会是利用 DNA 修复途径治疗癌症的专家。 其中包括 Hideho Okada 博士，他是一位医师科学家，也是临床前神经胶质瘤免疫治疗研究的专家。 Gary Kupfer，一位在癌症基因组不稳定性研究方面具有专业知识的医师科学家和 David 博士 哈弗勒是一位医师科学家，也是神经免疫学领域的先驱，这个多学科的指导团队与他一起。 凭借耶鲁大学出色的科学资源，Vasquez 博士将能够获得更多 指导研究经验，使他可以成为一名独立资助的研究者。 研究项目。迄今为止，免疫检查点抑制剂（ICi）在治疗中无效。 胶质瘤，很大程度上是由于免疫学上的“冷”微环境和新抗原数量较少。 研究小组最近发现，胶质瘤中常见的 IDH1/2 突变可诱导同源性 重组 (HR) 缺陷并赋予对 DNA 损伤反应抑制剂 (DDRi) 的敏感性，例如聚 （ADP-核糖）聚合酶 (PARP) 抑制剂和共济失调毛细血管扩张症和 Rad3 相关 (ATR) 激酶 新的证据表明遗传性或获得性 DDR 缺陷会增加肿瘤免疫原性。 通过 DNA 损伤诱导免疫识别途径的激活。 我的建议是可以利用 PARP 和 ATR 激酶来利用突变 IDH1/2 诱导的 DNA 修复缺陷 抑制诱导宿主和癌细胞内在免疫激活并改善其他方面的 ICi 反应 在目标 1 中，我们将进行一系列体外和体内研究来测试。 PARP 和 ATR 联合抑制对 IDH1/2 突变神经胶质瘤的潜在功效并探索 DNA 修复 在目标 2 中，我们将探讨免疫介导的机制。 DDRi 合成致死率并定义肿瘤内在和宿主依赖性免疫调节作用 联合 PARP 和 ATR 抑制 在目标 3 中，我们将确定 PARP 和 ATR 抑制是单独抑制还是联合抑制。 组合，提高体内对抗PD-1的反应。