3.代謝與代謝的調(diào)控醫(yī)學(xué)PPT課件.ppt
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分子細(xì)胞生物學(xué)進(jìn)展分子細(xì)胞生物學(xué)進(jìn)展Metabolic Strategies in Cancer癌癥的代謝策略癌癥的代謝策略Xuemei Tong(童雪梅童雪梅),Ph.D.April,2016Lecture Objectivesn To provide a brief summary of the history of research in cancer metabolismn To summarize the metabolic strategies in cancer cellsn To reveal genetic mechanisms behind the metabolic phenotypes in tumorsn To give an example of transcriptional regulation in cancer metabolism(our work on ChREBP)TermsGlycolysis 糖酵解糖酵解TCA cycle/Oxidative phosphorylation 三羧酸循環(huán)三羧酸循環(huán)/氧化磷酸化氧化磷酸化Macromolecules(生物)大分子(生物)大分子Anabolism 合成代謝合成代謝Catabolism 分解代謝分解代謝Isoenzyme 同工酶同工酶Warburg effect/aerobic glycolysis 有氧糖酵解有氧糖酵解FDG-PET 18F脫氧葡萄糖(脫氧葡萄糖(FDG)-正電子發(fā)射體層顯像(正電子發(fā)射體層顯像(PET)Hallmarks of cancer 癌癥的特征癌癥的特征IDH(isocitrate dehydrogenase)異檸檬酸脫氫酶異檸檬酸脫氫酶Oncometabolite 致癌代謝物致癌代謝物Metabolic syndrome 代謝綜合癥代謝綜合癥Truncated TCA cycle 截短的截短的/不完整的不完整的三羧酸循環(huán)三羧酸循環(huán)ReferencesThe Molecular Basis of Cancer(Third Edition)Copyright 2008 Elsevier Inc.All rights reserved Edited by:John Mendelsohn,MD,Peter M.Howley,MD,Mark A.Israel,MD,Joe W.Gray,PhD,and Craig B.Thompson,MD ISBN:978-1-4160-3703-3Understanding the Warburg effect:the metabolic requirements of cell proliferation.Vander Heiden MG,Cantley LC,Thompson CB.Science.2009 May 22;324(5930):1029-33.Hallmarks of cancer:the next generation.Hanahan D,Weinberg RA.Cell.2011 Mar 4;144(5):646-74.Metabolic reprogramming:a cancer hallmark even warburg did not anticipate.Ward PS,Thompson CB.Cancer Cell.2012 Mar 20;21(3):297-308.Part In To provide a brief summary of the history of research in cancer metabolismn To summarize the metabolic strategies in cancer cellsn To reveal genetic mechanisms behind the metabolic phenotypes in tumorsn To give an example of transcriptional regulation in cancer metabolism(our work on ChREBP)Otto Warburg and Warburg EffectOtto Heinrich Warburg(1883-1970)Nobel Prize in Physiology or Medicine(1931)discovery of the nature and mode of action of the respiratory enzyme.Vander Heiden et al,Science 2009葡萄糖葡萄糖丙酮酸丙酮酸乳酸乳酸氧化氧化磷酸化磷酸化無(wú)氧無(wú)氧糖酵解糖酵解有氧有氧糖酵解糖酵解FDG-PET(fluorodeoxyglucose-positron emission tomography)Vander Heiden et al,Science 2009靜脈注射18F-FDG后,18F-FDG 隨血液循環(huán)到達(dá)腫瘤所在,由于腫瘤細(xì)胞表面存在高表達(dá)的葡萄糖轉(zhuǎn)運(yùn)蛋白(Glut1和Glut3),使18F-FDG大量進(jìn)入腫瘤細(xì)胞內(nèi),并在細(xì)胞內(nèi)的已糖激酶(大多數(shù)惡性腫瘤內(nèi)已糖激酶含量明顯高于良性病變和正常組織)作用下,轉(zhuǎn)變?yōu)?-磷酸-18F-FDG,由于FDG與正常葡萄糖存在分子結(jié)構(gòu)的差異,它不參與葡萄糖的進(jìn)一步代謝而滯留在細(xì)胞。通過(guò)PET動(dòng)、靜態(tài)掃描,能準(zhǔn)確地測(cè)量腫瘤的葡萄糖代謝異常程度并對(duì)其進(jìn)行顯像。在某些腫瘤,如高分化原發(fā)性肝癌,細(xì)胞內(nèi)存在較高水平的葡萄糖-6-磷酸酶,能將存在于細(xì)胞內(nèi)的6-磷酸-18F-FDG水解成18F-FDG,后者通過(guò)自由擴(kuò)散游離出細(xì)胞,18F-FDG便不在腫瘤細(xì)胞內(nèi)聚集而出現(xiàn)假陰性。FDG-PET腫瘤顯像的原理腫瘤顯像的原理Sidney Weinhouse(1909-2001)isozyme in hepatomas Peter PedersenJohns Hopkins Univ.School of MedicineChi DangUniv.of PennsylvaniaSchool of MedicineGregg SemenzaJohns Hopkins Univ.School of MedicineScientists in the Field of Cancer MetabolismLewis CantleyHarvard Medical SchoolTak MakCanadaUniv.of Toronto管坤良管坤良復(fù)旦大學(xué)復(fù)旦大學(xué)UCSD熊躍熊躍復(fù)旦大學(xué)復(fù)旦大學(xué)Univ.of North CarolinaAnd many moreCraig ThompsonMemorial Sloan-Kettering Cancer Center 趙世民趙世民復(fù)旦大學(xué)復(fù)旦大學(xué)雷群英雷群英復(fù)旦大學(xué)醫(yī)學(xué)院復(fù)旦大學(xué)醫(yī)學(xué)院SU2C Dream Team ScientistsTargeting PI3K in Womens CancersLewis C.Cantley,PhD,Charles Sawyers,MD,and Gordon B.Mills,MD,PhDCutting Off the Fuel Supply:A New Approach to the Treatment of Pancreatic CancerCraig Thompson,MD,and Daniel D.von Hoff,MD,FACP Bioengineering and Clinical Applications of Circulating Tumor Cell ChipDaniel Haber,MD,PhD,and Mehmet Toner,PhDBringing Epigenetic Therapy to the Forefront of Cancer ManagementStephen Baylin,MD,and Peter A.Jones,PhDAn Integrated Approach to Targeting Breast Cancer Molecular Subtypes and Their Resistance Phenotypes Joe Gray,PhD,and Dennis Slamon,MD,PhDThe Original Six Hallmarks of CancerHanahan D and Weinberg RA,Cell.2000生長(zhǎng)信號(hào)的生長(zhǎng)信號(hào)的自給自足性自給自足性對(duì)于抑制生長(zhǎng)信號(hào)對(duì)于抑制生長(zhǎng)信號(hào)的不敏感性的不敏感性逃避細(xì)胞凋亡逃避細(xì)胞凋亡無(wú)限的復(fù)制潛力無(wú)限的復(fù)制潛力持續(xù)的血管生成持續(xù)的血管生成組織浸潤(rùn)和轉(zhuǎn)移組織浸潤(rùn)和轉(zhuǎn)移基因組不穩(wěn)定基因組不穩(wěn)定和突變和突變細(xì)胞能量異常細(xì)胞能量異常促進(jìn)腫瘤的炎癥促進(jìn)腫瘤的炎癥避免免疫摧毀避免免疫摧毀The New Ten Hallmarks of CancerHanahan D and Weinberg RA,Cell.2011n 在分子水平上抑制代謝中的關(guān)鍵酶而降低糖酵解和其它合成代謝通路活性可以減緩腫瘤細(xì)胞生長(zhǎng)。n 對(duì)癌癥病人全基因組測(cè)序找到了某些高頻率突變的代謝基因,這些基因的突變導(dǎo)致代謝中間物失調(diào)從而對(duì)于細(xì)胞表觀遺傳性狀和信號(hào)轉(zhuǎn)導(dǎo)通路產(chǎn)生重要影響。n 大規(guī)模流行病學(xué)研究表明肥胖病,糖尿病等代謝性綜合癥患者的各類(lèi)癌癥發(fā)病率明顯上升。Why is Cancer Metabolism Important?n 在分子水平上抑制代謝中的關(guān)鍵酶而降低糖酵解和其它合成代謝通路活性可以減緩腫瘤細(xì)胞生長(zhǎng)。n 對(duì)癌癥病人全基因組測(cè)序找到了某些高頻率突變的代謝基因,這些基因的突變導(dǎo)致代謝中間物失調(diào)從而對(duì)于細(xì)胞表觀遺傳性狀和信號(hào)轉(zhuǎn)導(dǎo)通路產(chǎn)生重要影響。n 大規(guī)模流行病學(xué)研究表明肥胖病,糖尿病等代謝綜合征患者的各類(lèi)癌癥發(fā)病率明顯上升。Why is Cancer Metabolism Important?GARBER K,Science 2006HK=Hexokinase,己糖激酶PDK=pyruvate dehydrogenase kinase,丙酮酸脫氫酶激酶PDH=pyruvate dehydrogenase,丙酮酸脫氫酶ACL=ATP citrate lyase,ATP-檸檬酸裂解酶PKM2,pyruvate kinase M2,丙酮酸激酶-M2PGAM,phosphoglyceromutase,磷酸甘油酸變位酶Strategies for Targeting Tumor Energy Pathways(I)Strategies for Targeting Tumor Energy Pathways(II)n Evidence for an alternative glycolytic pathway in rapidly proliferating cells.Vander Heiden MG et al,Science.2010 Sep 17;329(5998):1492-9.n The M2 splice isoform of pyruvate kinase is important for cancer metabolism and tumour growth.Christofk HR and Vander Heiden MG et al,Nature.2008 Mar 13;452(7184):230-3.n Pyruvate kinase M2 is a phosphotyrosine-binding protein.Christofk HR andVander Heiden MG et al,Nature.2008 Mar 13;452(7184):181-6.Cancer cell proliferation can be inhibited by decreasing glycolysis and anabolic metabolismGlucoseGlucoseLactateFatty acidAmino acidNucleotideTCAcycleCancer cell proliferationGlucoseGlucoseLactateFatty acidAmino acidNucleotideTCAcycleCancer cell proliferationn 在分子水平上抑制代謝中的關(guān)鍵酶而降低糖酵解和其它合成代謝通路活性可以減緩腫瘤細(xì)胞生長(zhǎng)。n 對(duì)癌癥病人全基因組測(cè)序找到了某些高頻率突變的代謝基因,這些基因的突變導(dǎo)致代謝中間物失調(diào)從而對(duì)于細(xì)胞表觀遺傳性狀和信號(hào)轉(zhuǎn)導(dǎo)通路產(chǎn)生重要影響。n 大規(guī)模流行病學(xué)研究表明肥胖病,糖尿病等代謝綜合征患者的各類(lèi)癌癥發(fā)病率明顯上升。Why is Cancer Metabolism Important?Roles of IDH1,IDH2,SDH,and Fumarase in Cellular MetabolismIDH,異檸檬酸脫氫酶異檸檬酸脫氫酶SDH,琥珀酸脫氫酶琥珀酸脫氫酶Fumarase,富馬酸酶富馬酸酶Thompson CB,N Engl J Med.2009 An integrated genomic analysis of human glioblastoma multiforme.神經(jīng)膠質(zhì)瘤Parsons DW et al,Science.2008 Sep 26;321(5897):1807-12.IDH1 and IDH2 mutations in gliomas.Yan H et al,N Engl J Med.2009 Feb 19;360(8):765-73.Glioma-derived mutations in IDH1 dominantly inhibit IDH1 catalytic activity and induce HIF-1alpha.Zhao S et al,Science.2009 Apr 10;324(5924):261-5.Cancer-associated IDH1 mutations produce 2-hydroxyglutarate.2-羥基戊二酸Dang L et al,Nature.2009 Dec 10;462(7274):739-44.Leukemic IDH1 and IDH2 mutations result in a hypermethylation phenotype,disrupt TET2 function,and impair hematopoietic differentiation.Figueroa ME et al,Cancer Cell.2010 Dec 14;18(6):553-67.Oncometabolite 2-hydroxyglutarate is a competitive inhibitor of-ketoglutarate-dependent dioxygenases.Xu W et al,Cancer Cell.2011 Jan 18;19(1):17-30.IDH mutation impairs histone demethylation and results in a block to cell differentiation.Lu C et al,Nature.2012 Feb 15;483(7390):474-8.IDH,異檸檬酸脫氫酶異檸檬酸脫氫酶Metabolic pathways provide substrates for post-translational modifications(PTMs)that influence cell signalingMetallo CM et al,Genes Dev.2010n 在分子水平上抑制代謝中的關(guān)鍵酶而降低糖酵解和其它合成代謝通路活性可以減緩腫瘤細(xì)胞生長(zhǎng)。n 對(duì)癌癥病人全基因組測(cè)序找到了某些高頻率突變的代謝基因,這些基因的突變導(dǎo)致代謝中間物失調(diào)從而對(duì)于細(xì)胞表觀遺傳性狀和信號(hào)轉(zhuǎn)導(dǎo)通路產(chǎn)生重要影響。n 大規(guī)模流行病學(xué)研究表明肥胖病,糖尿病等代謝綜合征患者的各類(lèi)癌癥發(fā)病率明顯上升。Why is Cancer Metabolism Important?中華醫(yī)學(xué)會(huì)糖尿病學(xué)分會(huì)(CDS)建議代謝綜合征的診斷標(biāo)準(zhǔn)具備以下4項(xiàng)組成成分中的3項(xiàng)或全部者:n 超重和(或)肥胖n 高血糖n 高血壓n 血脂紊亂Metabolic SyndromeOverweight,obesity and cancer:epidemiological evidence and proposed mechanisms.Calle EE,Kaaks R.Nat Rev Cancer.2004 Aug;4(8):579-91.Part IIn To provide a brief summary of the history of research in cancer metabolismn To summarize the metabolic strategies in cancer cellsn To reveal genetic mechanisms behind the metabolic phenotypes in tumorsn To give an example of transcriptional regulation in cancer metabolism(our work on ChREBP)What do Cells Need to Grow and Proliferate?Substrates for Growth(such as Glucose and Glutamine)ATP and NADH and NADPH Appropriate Regulation of Metabolic Pathways to Maximize BiosynthesisMetabolic Strategies in Cancer CellsCancer cells High nutrient uptakeHigh glycolytic rateIncreased anabolism Low activity of TCA cycleor“Truncated”TCA Cycle.Normal cells Basal nutrient uptakeBasal glycolytic rateBasal anabolism High activity of TCA cycleOtto Warburg and Warburg EffectOtto Heinrich Warburg(1883-1970)Nobel Prize in Physiology or Medicine(1931)discovery of the nature and mode of action of the respiratory enzyme.Vander Heiden et al,Science 2009葡萄糖葡萄糖丙酮酸丙酮酸乳酸乳酸氧化氧化磷酸化磷酸化無(wú)氧無(wú)氧糖酵解糖酵解有氧有氧糖酵解糖酵解Why is the Rate of Glycolysis So High in Tumor Cells?Reason 1:To Produce Sufficient Energy and Metabolic Intermediates for BiosynthesisGlycolysis Produces Energy and Metabolic Intermediates for Tumor Cell ProliferationMacromolecules:ProteinLipidNucleic acidProteinLipidNucleic acidWhy is the Rate of Glycolysis So High in Tumor Cells?Reason 2:To Survive Periods of Hypoxia 缺氧缺氧Reason 3:To Secret Lactate and Create a Microenvironment Favorable for Tumor GrowthTumors Use a“Truncated”Form of the TCA CycleGlutamine Oxidation Makes the Truncated TCA Cycle Possible.Part IIIn To provide a brief summary of the history of research in cancer metabolismn To summarize the metabolic strategies in cancer cellsn To reveal genetic mechanisms behind the metabolic phenotypes in tumorsn To give an example of transcriptional regulation in cancer metabolism(our work on ChREBP)TermsPI3K=Phosphatidylinositol 3-kinases Akt/PKB,a serine/threonine protein kinase P53,a transcription factorAMPK=AMP-activated protein kinase HIF=Hypoxia-inducible factor,a transcription factorMyc,a transcription factorChREBP=carbohydrate responsive element-binding protein,a transcription factor ROS=Reactive oxygen species 活性氧活性氧The phosphatidylinositol 3-kinases(PI3Ks)are members of a conserved family of intracellular lipid kinases.The PI3K PathwayEngelman JA et al,Nat Rev Genet.2006Mutations in the PI3K Pathway in CancersEngelman JA et al,Nat Rev Genet.2006 The PI3K/Akt Pathway Drives Growth MetabolismP53,a transcription factor.Nutrient Deprivation Signals to p53Vousden KH and Ryan KM.Nat Rev Cancer.2009 Regulation of Energy Production by p53Vousden KH and Ryan KM.Nat Rev Cancer.2009 Kinase LKB1 and AMPK are activated by the high AMP/ATP ratio that occurs during energy limitation.The LKB1/AMPK Pathway Allows Cells to Respond to Metabolic Stress by Engaging Catabolic MetabolismAMPK=AMP-activated protein kinase The transcription factor HIF-1 contributes to the high rate of glycolysis in tumors.Semenza GL.Curr Opin Genet Dev.2010HIF-1:Upstream and Downstream of Cancer MetabolismThe Myc proteins are a family of transcription factors that regulate cell cycle entry and metabolism.c-Myc and HIF Regulate Carbon MetabolismGordan JD et al,Cancer Cell.2007.Myc Regulates both Glucose and Glutamine Metabolic PathwaysDang CV.Cancer Res.2010.GLS=glutaminase,谷氨酰胺酶ASCT2=谷氨酰胺載體Part IVn To provide a brief summary of the history of research in cancer metabolismn To summarize the metabolic strategies in cancer cellsn To reveal genetic mechanisms behind the metabolic phenotypes in tumorsn To give an example of transcriptional regulation in cancer metabolism(our work on ChREBP)Cancer cell proliferation can be inhibited by decreasing glycolysis and anabolic metabolismGlucoseGlucoseLactateFatty acidAmino acidNucleotideTCAcycleCancer cell proliferationGlucoseGlucoseLactateFatty acidAmino acidNucleotideTCAcycleCancer cell proliferationMouse ChREBP Protein1864S196S568T666PKAAMPKPKAGlucose sensing module ChREBP(carbohydrate responsive element binding protein)binds the carbohydrate response element(ChoRE)which consists of two E-box like consensus sequences separated by five base pairs.In adults,expression of ChREBP is detectable in most tissues but is at its highest levels in liver and adipose tissue.ChREBP null mice show decreased glycolysis and lipogenesis as well as intolerance to dietary carbohydrate.Loss of ChREBP in leptin null ob/ob mice results in alleviation of obesity.NES NLSPro-richbHLH/ZIPZIP likeRoles of LXR,ChREBP,and SREBP-1c in the Transcriptional Control of Triglyceride Synthesis in LiverDenechaud PD et al,JCI 2008Hormone/nutrient-mediated Regulation of ChREBP Activity in HepatocytesUyeda K et al,Cell metabolism 2006The Role of ChREBP in Glycolysis and Lipogenesis in HepatocytesUyeda K et al,Cell metabolism 2006The question:What is the Role of ChREBP in Cancer Cells?Proliferative Cells Depend on ChREBP to Maintain Proliferative Expansion(HCT116 Colorectal Cancer Cells)Tong et al,Proc Natl Acad Sci U S A.2009 Proliferative Cells Depend on ChREBP to Maintain Proliferative Expansion(HepG2 Cells)Suppression of ChREBP Leads to a Metabolic Switch from Aerobic Glycolysis to Mitochondrial Respiration(HCT116 Colorectal Cancer Cells)Warburg EffectVander Heiden et al,Science 2009Suppression of ChREBP Leads to Decreased Lipid and Nucleotide Biosynthesis(HCT116 Cells)DeBerardinis RJ et al,Proc Natl Acad Sci U S A.2007Effect of ChREBP Knockdown on Labeling in Acid Soluble Metabolites from 1,6-13C2Glucose(HCT116 Cells)ControlChREBP knockdownpro-4lac-3ala-3glut-4glth-4glut-3glut-2Glycolytic Intermediatesasp-3HHHHHHgn-2gn-4gn-3pro-4lac-3glut-4glut-3glut-2Glycolytic Intermediatesasp-3HHHHHHglut-2/glut-4=0.230.04glut-2/glut-4=0.370.07Suppression of ChREBP Induces p53 Activation(HCT116 Cells)Suppression of ChREBP Induces Cell Cycle Arrest(HCT116 Cells)Nutrient Deprivation Signals to p53Vousden KH and Ryan KM.Nat Rev Cancer.2009 Suppression of ChREBP Does not Activate AMPKMurphy,Biochemical Journal 2009Overview of Mitochondrial ROS ProductionIncreased ROS Level and Decreased Cellular Glutathione Level in ChREBP-deficient Cells Compared with Control Cells(HCT116 Cells)Antioxidant N-acetylcysteine(NAC)Reduces ChREBP Knockdown-induced p53 Activation(HCT116 Cells)Suppression of ChREBP Leads to a p53-dependent Reduction in Tumor Growth ChREBP is highly expressed in liver and colorectal cancer cells and critical for cancer cell proliferationGlucoseGlucoseLactateFatty acidAmino acidNucleotideTCAcycleHigh ChREBP expressioncancer cell proliferationGlucoseGlucoseLactateFatty acidAmino acidNucleotideTCAcycleLow ChREBP expressioncancer cell proliferationNutrients(glucose,amino acid,fatty acid,lactate,etc.)ChREBPMondoAMondo familyGlycolysis,anabolic metabolism and proliferation in colorectal and liver cancer cellsOur group studies transcriptional regulation in cancer cell metabolismCancer cell linesMouse modelsClinical samplesLecture Objectivesn To provide a brief summary of the history of research in cancer metabolismn To summarize the metabolic strategies in cancer cellsn To reveal genetic mechanisms behind the metabolic phenotypes in tumorsn To give an example of transcriptional regulation in cancer metabolism(our work on ChREBP)
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