Understanding the role of metabolism in cancer

了解新陈代谢在癌症中的作用

• 批准号: 9815749
• 负责人: MATTHEW G. VANDER HEIDEN
• 金额: $ 80.3万
• 依托单位: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
• 依托单位国家: 美国
• 财政年份: 2019
• 资助国家: 美国
• 起止时间: 2019-09-10 至 2026-08-31
• 项目状态: 未结题
• 来源: https://reporter.nih.gov/project-details/9815749
• 关键词: Affect; Biochemical Genetics; Biochemistry; Biomass; Cancer Model; Cancer Patient; Cell Culture Techniques; Cell Proliferation; Cells; Cellular Metabolic Process; Diet; Drug resistance; Drug usage; Environment; Environmental Risk Factor; Event; Generations; Genetic; Goals; Laboratories; Malignant Neoplasms; Mass Spectrum Analysis; Metabolic; Metabolic Pathway; Metabolism; Modeling; Normal Cell; Nucleotides; Nutrient; Oxides; Patients; Physiological; Physiology; Production; Proliferating; Regulation; Research; Role; Running; Signal Transduction; Supporting Cell; Technology; Testing; Tissues; Trace Elements Nutrition; Work; cancer cell; cancer genetics; cancer therapy; cancer type; extracellular; genetic approach; glucose metabolism; insight; interest; macromolecule; metabolic abnormality assessment; metabolic phenotype; mouse model; neoplastic cell; novel; programs; tool; tumor; tumor growth; tumor initiation; tumor metabolism; tumor microenvironment; tumor progression

Project Summary Cancer cells have metabolic requirements that differ from most normal, non-proliferating cells. To proliferate, cancer cells must transform available nutrients into the varied array of macromolecules that are needed to build a new cell. Each cancer type is unique and will run a metabolic program that depends on the tissue-of- origin, genetic factors, and the local environment. How specific cancers integrate these cancer cell-intrinsic and extrinsic factors to rewire metabolism and support cancer progression is a major unanswered question. My laboratory's long-term goal is to understand how cancer cell metabolism is adapted to support tumor initiation and progression. The metabolic phenotypes of proliferating cells are typically interpreted with an emphasis on either energy generation or the crosstalk between signaling events and cell metabolism. This has led many to focus on how cancer genetics influences metabolic pathway use. We take a different approach that identifies limiting metabolic processes, considers how these are constrained by the extracellular environment, and defines how metabolic limitations are overcome within a physiological tissue context. Our work has provided insight into understanding how glucose metabolism affects cell proliferation. We found that production of nucleotides and oxidized biomass can be metabolic limitations of cell proliferation and tumor growth, and that both cancer cell-intrinsic and environmental factors determine how cells overcome these limitations. We have developed novel tools to study metabolism in various physiological contexts and uncovered metabolic differences between tumors and cancer cells in culture. We have demonstrated how environmental nutrients and cancer lineage can dictate how metabolism is used to support proliferation and determine sensitivity and resistance to drugs used in patients. Our work has charted new research directions for the field and contributed new ideas to exploit altered metabolism to help cancer patients. Using mass spectrometry to trace nutrient fate in cancer models, my laboratory generates hypotheses for how different cancers use metabolism to support cell proliferation and tumor growth. We test these hypotheses using a variety of biochemical and genetic approaches to define how nutrient availability, metabolic pathway regulation, and tissue context constrain how cells use available materials to proliferate. Our current interests include identifying which metabolic processes create bottlenecks for cell proliferation, determining how metabolism is different in different cancers, examining in detail the influence of tissue type, tumor genetics, and tumor microenvironment, and understanding how diet and whole body metabolism influence tumor metabolism and cancer progression. We aim to advance understanding of metabolic pathway biochemistry, its relationship to cancer and mammalian physiology, and identify how best to target metabolism for therapy.

项目摘要 癌细胞具有不同于大多数正常非增殖细胞的代谢要求。为了扩散， 癌细胞必须将可用的营养物质转化为所需的各种大分子， 建立一个新的细胞。每种癌症类型都是独特的，并将运行一个代谢程序，这取决于组织的- 起源，遗传因素和当地环境。特定的癌症如何整合这些癌细胞-内在的和 重建代谢和支持癌症进展的外在因素是一个主要的未回答的问题。 我的实验室的长期目标是了解癌细胞的新陈代谢是如何适应支持肿瘤生长的。 启动和进展。增殖细胞的代谢表型通常用代谢表型来解释。 强调能量产生或信号事件与细胞代谢之间的串扰。这 导致许多人关注癌症遗传学如何影响代谢途径的使用。我们采取不同的方法 确定限制代谢过程，考虑这些是如何受到细胞外 环境，并定义了如何在生理组织背景下克服代谢限制。 我们的工作提供了深入了解葡萄糖代谢如何影响细胞增殖。我们发现 核苷酸和氧化生物质的产生可能是细胞增殖和肿瘤的代谢限制， 生长，以及癌细胞内在和环境因素决定细胞如何克服这些因素。 局限性。我们已经开发了新的工具来研究各种生理背景下的代谢， 揭示了培养中肿瘤和癌细胞之间的代谢差异。我们已经展示了 环境营养素和癌症谱系可以决定代谢如何用于支持增殖， 确定患者对所用药物的敏感性和耐药性。我们的工作为新的研究方向指明了方向 并为利用改变新陈代谢来帮助癌症患者贡献了新的想法。 使用质谱法追踪癌症模型中的营养命运，我的实验室产生了关于如何 不同的癌症利用代谢来支持细胞增殖和肿瘤生长。我们测试这些假设 利用各种生物化学和遗传学方法来确定养分的有效性、代谢途径 调控和组织环境限制了细胞如何使用可用的材料来增殖。我们当前的利益 包括确定哪些代谢过程为细胞增殖创造了瓶颈，确定如何 代谢在不同的癌症中是不同的，详细检查了组织类型，肿瘤遗传学， 肿瘤微环境，了解饮食和全身代谢如何影响肿瘤代谢 和癌症进展。我们的目标是促进对代谢途径生物化学的理解， 癌症和哺乳动物生理学，并确定如何最好地靶向治疗代谢。