Understanding the role of metabolism in cancer

了解代谢在癌症中的作用

基本信息

批准号：
10686279
负责人：
MATTHEW G. VANDER HEIDEN
金额：
$ 74.93万
依托单位：
MASSACHUSETTS INSTITUTE OF TECHNOLOGY
依托单位国家：
美国
项目类别：
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/10686279
关键词：
Affect Biochemical 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 Intrinsic factor Laboratories Malignant Neoplasms Mass Spectrum Analysis Metabolic Metabolic Pathway Metabolism Modeling Normal Cell Nucleotides Nutrient Nutrient availability 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

项目摘要

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.

项目概要癌细胞的代谢要求与大多数正常的非增殖细胞不同。为了增殖，癌细胞必须将可用的营养物质转化为各种大分子，这些大分子是建立一个新的细胞。每种癌症类型都是独特的，并且会运行取决于组织的代谢程序起源、遗传因素和当地环境。特定癌症如何整合这些癌细胞固有的和重新连接新陈代谢和支持癌症进展的外在因素是一个尚未解答的主要问题。我实验室的长期目标是了解癌细胞代谢如何适应肿瘤启动和进展。增殖细胞的代谢表型通常用强调能量产生或信号事件与细胞代谢之间的串扰。这有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识别限制代谢过程，考虑这些过程如何受到细胞外的限制环境，并定义如何在生理组织环境中克服代谢限制。我们的工作深入了解了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，癌细胞内在因素和环境因素决定了细胞如何克服这些因素限制。我们开发了新的工具来研究各种生理环境下的新陈代谢发现了培养物中肿瘤和癌细胞之间的代谢差异。我们已经演示了如何环境营养素和癌症谱系可以决定如何利用新陈代谢来支持增殖和确定患者对所用药物的敏感性和耐药性。我们的工作制定了新的研究方向为该领域贡献了新的想法，利用改变的新陈代谢来帮助癌症患者。我的实验室利用质谱法追踪癌症模型中的营养命运，提出了如何不同的癌症利用新陈代谢来支持细胞增殖和肿瘤生长。我们测试这些假设使用各种生化和遗传学方法来定义营养物质的可用性、代谢途径调节和组织环境限制了细胞如何利用可用材料进行增殖。我们目前的兴趣包括确定哪些代谢过程造成细胞增殖的瓶颈，确定如何不同癌症的代谢是不同的，详细检查组织类型、肿瘤遗传学和肿瘤微环境，了解饮食和全身代谢如何影响肿瘤代谢和癌症进展。我们的目标是增进对代谢途径生物化学及其关系的理解癌症和哺乳动物生理学，并确定如何最好地针对代谢进行治疗。