Hyperpolarized NMR for Studies of Cancer Therapies Targeting the Warburg Effect

超极化核磁共振用于针对 Warburg 效应的癌症治疗研究

• 批准号: 8502084
• 负责人: Aaron Keith Grant
• 金额: $ 36.11万
• 依托单位: BETH ISRAEL DEACONESS MEDICAL CENTER
• 依托单位国家: 美国
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-04-19 至 2018-03-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/8502084
• 关键词: Accounting; Acute; Affect; Bicarbonates; Cancer Etiology; Cancer Patient; Cancer cell line; Cause of Death; Cell Line; Cell Respiration; Cells; Cessation of life; Characteristics; Cisplatin; Citric Acid Cycle; Clinical; Combined Modality Therapy; Development; Dichloroacetate; Disease; Dose; Drug Combinations; Drug Targeting; Effectiveness; Emerging Technologies; Environment; Enzymes; Epidermal Growth Factor Receptor; Exhibits; Glucose; Heart Diseases; Hypoxia; In Vitro; Intervention; Lactate Dehydrogenase; Lactic acid; Long-Term Effects; Lung; Magnetic Resonance Imaging; Malignant Neoplasms; Malignant neoplasm of lung; Measurement; Measures; Metabolic; Metabolic Pathway; Metabolism; Methods; Molecular Target; Monitor; Mutation; Neoplasm Metastasis; Normal tissue morphology; Oxygen; Patients; Pharmaceutical Preparations; Phenotype; Platinum; Positron-Emission Tomography; Production; Pyruvate; Reliance; Signal Transduction; Spectrum Analysis; Staining method; Stains; Techniques; Testing; Time; Tissues; Translations; Vascular Endothelial Growth Factors; Warburg Effect; Work; Xenograft Model; cancer cell; cancer prevention; cancer therapy; cancer type; clinical practice; design; fluorodeoxyglucose positron emission tomography; glucose uptake; improved; in vitro Assay; inhibitor/antagonist; interest; lactate dehydrogenase A; neoplastic cell; new technology; patient population; public health relevance; pyruvate dehydrogenase; response; tool; treatment response; tumor; tumor growth; tumor metabolism; tumorigenesis; uptake

DESCRIPTION (provided by applicant): There is a pressing need for improved therapies for many types of cancer. Here we propose to investigate cancer metabolism as a target for therapy. Many types of cancer exhibit the Warburg effect, taking up large quantities of glucose and metabolizing it into lactate rather than oxidizing it in the Krebs cycle. The Warburg effect may confer a survival advantage on cancer cells. By inhibiting specific enzymes that are involved in lactate production, it may be possible to reverse the Warburg effect and thereby selectively harm cancer cells. We will study several drugs that accomplish this by inhibiting lactate dehydrogenase or by up-regulating the activity of pyruvate dehydrogenase. A second major focus of the work is the use of hyperpolarized 13C NMR of pyruvate and its metabolites to non-invasively monitor tumor metabolism. Hyperpolarized NMR will be employed to assess the effects of different interventions, and to design a combination of drugs that brings about a maximal reversal of the Warburg effect. We will investigate the utility of hyperpolarized NMR as a technique for assessing the 'on-target' effects of various metabolic interventions, and determine whether shifts in metabolism measured with hyperpolarization can provide an early predictor of tumor response to therapy. In addition, we will investigate the use of metabolic therapies in conjunction with cisplatin, and compare the utility of hyperpolarized NMR and FDG PET in assessing tumor response.

描述（由申请人提供）：迫切需要改进多种癌症的治疗方法。 在这里，我们建议研究癌症代谢作为治疗目标。 许多类型的癌症都表现出瓦伯格效应，吸收大量葡萄糖并将其代谢为乳酸，而不是在克雷布斯循环中将其氧化。瓦尔堡效应可能赋予癌细胞生存优势。 通过抑制参与乳酸生成的特定酶，有可能逆转瓦尔堡效应，从而选择性地伤害癌细胞。我们将研究几种通过抑制乳酸脱氢酶或上调丙酮酸脱氢酶活性来实现这一目标的药物。该工作的第二个主要重点是使用丙酮酸及其代谢物的超极化 13C NMR 来非侵入性监测肿瘤代谢。 超极化核磁共振将用于评估不同干预措施的效果，并设计药物组合以最大程度地逆转瓦尔堡效应。 我们将研究超极化核磁共振作为评估各种代谢干预的“目标”效果的技术的实用性，并确定用超极化测量的代谢变化是否可以提供肿瘤对治疗反应的早期预测。此外，我们将研究代谢疗法与顺铂联合使用，并比较超极化 NMR 和 FDG PET 在评估肿瘤反应中的效用。