1
|
Giacomello G, Böttcher C, Parr MK. Isotopic tracing of glucose metabolites in human monocytes to assess changes in inflammatory conditions. STAR Protoc 2022; 3:101715. [PMID: 36152304 PMCID: PMC9519621 DOI: 10.1016/j.xpro.2022.101715] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 07/06/2022] [Accepted: 08/26/2022] [Indexed: 01/26/2023] Open
Abstract
Differences in metabolic profiles can link to functional changes of immune cells in disease conditions. Here, we detail a protocol for the detection and quantitation of 19 metabolites in one analytical run. We provide the parameters for chromatographic separation and mass spectrometric analysis of isotopically labeled and unlabeled metabolites. We include steps for incubation and sample preparation of PBMCs and monocytes. This protocol overcomes the chromatographic challenges caused by the chelating properties of some metabolites.
Collapse
Affiliation(s)
- Ginevra Giacomello
- Institute of Pharmacy, Freie Universität Berlin, Königin-Luise-Str. 2+4, 14195 Berlin, Germany,Corresponding author
| | - Chotima Böttcher
- Experimental and Clinical Research Center, a cooperation between the Max Delbrück Center for Molecular Medicine in the Helmholtz Association and Charité Universitätsmedizin Berlin, Berlin, Germany,Max Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany,Department of Neuropsychiatry and Laboratory of Molecular Psychiatry, Charité – Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Maria Kristina Parr
- Institute of Pharmacy, Freie Universität Berlin, Königin-Luise-Str. 2+4, 14195 Berlin, Germany,Corresponding author
| |
Collapse
|
2
|
Tran NT, Kowalski GM, Muccini AM, Nitsos I, Hale N, Snow RJ, Walker DW, Ellery SJ. Creatine supplementation reduces the cerebral oxidative and metabolic stress responses to acute in utero hypoxia in the late-gestation fetal sheep. J Physiol 2022; 600:3193-3210. [PMID: 35587817 PMCID: PMC9542404 DOI: 10.1113/jp282840] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 04/22/2022] [Indexed: 11/24/2022] Open
Abstract
Abstract Prophylactic creatine treatment may reduce hypoxic brain injury due to its ability to sustain intracellular ATP levels thereby reducing oxidative and metabolic stress responses during oxygen deprivation. Using microdialysis, we investigated the real‐time in vivo effects of fetal creatine supplementation on cerebral metabolism following acute in utero hypoxia caused by umbilical cord occlusion (UCO). Fetal sheep (118 days’ gestational age (dGA)) were implanted with an inflatable Silastic cuff around the umbilical cord and a microdialysis probe inserted into the right cerebral hemisphere for interstitial fluid sampling. Creatine (6 mg kg−1 h−1) or saline was continuously infused intravenously from 122 dGA. At 131 dGA, a 10 min UCO was induced. Hourly microdialysis samples were obtained from −24 to 72 h post‐UCO and analysed for percentage change of hydroxyl radicals (•OH) and interstitial metabolites (lactate, pyruvate, glutamate, glycerol, glycine). Histochemical markers of protein and lipid oxidation were assessed at post‐mortem 72 h post‐UCO. Prior to UCO, creatine treatment reduced pyruvate and glycerol concentrations in the microdialysate outflow. Creatine treatment reduced interstitial cerebral •OH outflow 0 to 24 h post‐UCO. Fetuses with higher arterial creatine concentrations before UCO presented with reduced levels of hypoxaemia (PO2 and SO2) during UCO which associated with reduced interstitial cerebral pyruvate, lactate and •OH accumulation. No effects of creatine treatment on immunohistochemical markers of oxidative stress were found. In conclusion, fetal creatine treatment decreased cerebral outflow of •OH and was associated with an improvement in cerebral bioenergetics following acute hypoxia.
![]() Key points Fetal hypoxia can cause persistent metabolic and oxidative stress responses that disturb energy homeostasis in the brain. Creatine in its phosphorylated form is an endogenous phosphagen; therefore, supplementation is a proposed prophylactic treatment for fetal hypoxia. Fetal sheep instrumented with a cerebral microdialysis probe were continuously infused with or without creatine‐monohydrate for 10 days before induction of 10 min umbilical cord occlusion (UCO; 131 days’ gestation). Cerebral interstitial fluid was collected up to 72 h following UCO. Prior to UCO, fetal creatine supplementation reduced interstitial cerebral pyruvate and glycerol concentrations. Fetal creatine supplementation reduced cerebral hydroxyl radical efflux up to 24 h post‐UCO. Fetuses with higher arterial creatine concentrations before UCO and reduced levels of systemic hypoxaemia during UCO were associated with reduced cerebral interstitial pyruvate, lactate and •OH following UCO. Creatine supplementation leads to some improvements in cerebral bioenergetics following in utero acute hypoxia.
Collapse
Affiliation(s)
- Nhi Thao Tran
- School of Health & Biomedical Sciences, RMIT University, Bundoora, Melbourne, Victoria, Australia.,The Ritchie Centre, Hudson Institute of Medical Research, Monash Medical Centre, Clayton, Melbourne, Victoria, Australia
| | - Greg M Kowalski
- Institute for Physical Activity & Nutrition, Deakin University, Burwood, School of Exercise & Nutrition Sciences, Deakin University, Geelong Melbourne, Victoria, Australia.,Metabolic Research Unit, School of Medicine, Deakin University, Geelong, Victoria, Australia
| | - Anna M Muccini
- The Ritchie Centre, Hudson Institute of Medical Research, Monash Medical Centre, Clayton, Melbourne, Victoria, Australia.,Genetic Research Services, University of Queensland, Queensland, Australia
| | - Ilias Nitsos
- The Ritchie Centre, Hudson Institute of Medical Research, Monash Medical Centre, Clayton, Melbourne, Victoria, Australia.,Department of Obstetrics & Gynecology, Monash University, Clayton, Melbourne, Victoria, Australia
| | - Nadia Hale
- School of Health & Biomedical Sciences, RMIT University, Bundoora, Melbourne, Victoria, Australia.,The Ritchie Centre, Hudson Institute of Medical Research, Monash Medical Centre, Clayton, Melbourne, Victoria, Australia
| | - Rod J Snow
- Institute for Physical Activity & Nutrition, Deakin University, Burwood, School of Exercise & Nutrition Sciences, Deakin University, Geelong Melbourne, Victoria, Australia
| | - David W Walker
- School of Health & Biomedical Sciences, RMIT University, Bundoora, Melbourne, Victoria, Australia
| | - Stacey J Ellery
- The Ritchie Centre, Hudson Institute of Medical Research, Monash Medical Centre, Clayton, Melbourne, Victoria, Australia.,Department of Obstetrics & Gynecology, Monash University, Clayton, Melbourne, Victoria, Australia
| |
Collapse
|
3
|
Geeraerts X, Fernández-Garcia J, Hartmann FJ, de Goede KE, Martens L, Elkrim Y, Debraekeleer A, Stijlemans B, Vandekeere A, Rinaldi G, De Rycke R, Planque M, Broekaert D, Meinster E, Clappaert E, Bardet P, Murgaski A, Gysemans C, Nana FA, Saeys Y, Bendall SC, Laoui D, Van den Bossche J, Fendt SM, Van Ginderachter JA. Macrophages are metabolically heterogeneous within the tumor microenvironment. Cell Rep 2021; 37:110171. [DOI: 10.1016/j.celrep.2021.110171] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 08/26/2021] [Accepted: 12/03/2021] [Indexed: 12/13/2022] Open
|
4
|
Schwörer S, Pavlova NN, Cimino FV, King B, Cai X, Sizemore GM, Thompson CB. Fibroblast pyruvate carboxylase is required for collagen production in the tumour microenvironment. Nat Metab 2021; 3:1484-1499. [PMID: 34764457 PMCID: PMC8606002 DOI: 10.1038/s42255-021-00480-x] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 09/14/2021] [Indexed: 12/27/2022]
Abstract
The aberrant production of collagen by fibroblasts is a hallmark of many solid tumours and can influence cancer progression. How the mesenchymal cells in the tumour microenvironment maintain their production of extracellular matrix proteins as the vascular delivery of glutamine and glucose becomes compromised remains unclear. Here we show that pyruvate carboxylase (PC)-mediated anaplerosis in tumour-associated fibroblasts contributes to tumour fibrosis and growth. Using cultured mesenchymal and cancer cells, as well as mouse allograft models, we provide evidence that extracellular lactate can be utilized by fibroblasts to maintain tricarboxylic acid (TCA) cycle anaplerosis and non-essential amino acid biosynthesis through PC activity. Furthermore, we show that fibroblast PC is required for collagen production in the tumour microenvironment. These results establish TCA cycle anaplerosis as a determinant of extracellular matrix collagen production, and identify PC as a potential target to inhibit tumour desmoplasia.
Collapse
Affiliation(s)
- Simon Schwörer
- Cancer Biology and Genetics Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Natalya N Pavlova
- Cancer Biology and Genetics Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Francesco V Cimino
- Cancer Biology and Genetics Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Bryan King
- Cancer Biology and Genetics Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Xin Cai
- Cancer Biology and Genetics Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Gina M Sizemore
- The Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
- Department of Radiation Oncology, The Ohio State University, Columbus, OH, USA
| | - Craig B Thompson
- Cancer Biology and Genetics Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
| |
Collapse
|
5
|
Wiechert W, Nöh K. Quantitative Metabolic Flux Analysis Based on Isotope Labeling. Metab Eng 2021. [DOI: 10.1002/9783527823468.ch3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
6
|
Tiedemann K, Hussein O, Komarova SV. Role of Altered Metabolic Microenvironment in Osteolytic Metastasis. Front Cell Dev Biol 2020; 8:435. [PMID: 32582711 PMCID: PMC7290111 DOI: 10.3389/fcell.2020.00435] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Accepted: 05/08/2020] [Indexed: 12/17/2022] Open
Abstract
Metastatic bone disease is generally incurable and leads to pathological fractures, pain, hypercalcemia, spinal cord compression and decreased mobility. The skeleton is the major site of bone metastases from solid cancers, including breast and prostate carcinoma. Bone metastasis is facilitated by activation of bone-resorbing osteoclasts, terminally differentiated multinucleated cells formed by fusion from monocytic precursors. Cancer cells are known to produce specific factors that stimulate osteoclast differentiation and function. Of interest, cancer cells are also known to alter their own bioenergetics increasing the use of glycolysis for their survival and function. Such change in energy utilization by cancer cells would result in altered levels of cell-permeable metabolites, including glucose, lactate, and pyruvate. Osteoclast resorption is energy-expensive, and we have previously demonstrated that during differentiation osteoclasts actively adapt to their bioenergetics microenvironment. We hypothesize that altered bioenergetics state of cancer cells will also modify the bioenergetics substrate availability for the tissue-resident bone cells, potentially creating a favorable milieu for pathological osteolysis. The goals of this review are to analyze how metastasizing cancer cells change the availability of energy substrates in bone microenvironment; and to assess how the altered bioenergetics may affect osteoclast differentiation and activity.
Collapse
Affiliation(s)
- Kerstin Tiedemann
- Faculty of Dentistry, McGill University, Montréal, QC, Canada.,Shriners Hospitals for Children - Canada, Montréal, QC, Canada
| | - Osama Hussein
- Department of Surgery, Mansoura University Cancer Center, Mansoura, Egypt
| | - Svetlana V Komarova
- Faculty of Dentistry, McGill University, Montréal, QC, Canada.,Shriners Hospitals for Children - Canada, Montréal, QC, Canada
| |
Collapse
|
7
|
Byrne FL, Olzomer EM, Marriott GR, Quek LE, Katen A, Su J, Nelson ME, Hart-Smith G, Larance M, Sebesfi VF, Cuff J, Martyn GE, Childress E, Alexopoulos SJ, Poon IK, Faux MC, Burgess AW, Reid G, McCarroll JA, Santos WL, Quinlan KG, Turner N, Fazakerley DJ, Kumar N, Hoehn KL. Phenotypic screen for oxygen consumption rate identifies an anti-cancer naphthoquinone that induces mitochondrial oxidative stress. Redox Biol 2020; 28:101374. [PMID: 31743887 PMCID: PMC6861633 DOI: 10.1016/j.redox.2019.101374] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 10/07/2019] [Accepted: 11/04/2019] [Indexed: 11/09/2022] Open
Abstract
A hallmark of cancer cells is their ability to reprogram nutrient metabolism. Thus, disruption to this phenotype is a potential avenue for anti-cancer therapy. Herein we used a phenotypic chemical library screening approach to identify molecules that disrupted nutrient metabolism (by increasing cellular oxygen consumption rate) and were toxic to cancer cells. From this screen we discovered a 1,4-Naphthoquinone (referred to as BH10) that is toxic to a broad range of cancer cell types. BH10 has improved cancer-selective toxicity compared to doxorubicin, 17-AAG, vitamin K3, and other known anti-cancer quinones. BH10 increases glucose oxidation via both mitochondrial and pentose phosphate pathways, decreases glycolysis, lowers GSH:GSSG and NAPDH/NAPD+ ratios exclusively in cancer cells, and induces necrosis. BH10 targets mitochondrial redox defence as evidenced by increased mitochondrial peroxiredoxin 3 oxidation and decreased mitochondrial aconitase activity, without changes in markers of cytosolic or nuclear damage. Over-expression of mitochondria-targeted catalase protects cells from BH10-mediated toxicity, while the thioredoxin reductase inhibitor auranofin synergistically enhances BH10-induced peroxiredoxin 3 oxidation and cytotoxicity. Overall, BH10 represents a 1,4-Naphthoquinone with an improved cancer-selective cytotoxicity profile via its mitochondrial specificity.
Collapse
Affiliation(s)
- Frances L Byrne
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW, Australia.
| | - Ellen M Olzomer
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW, Australia
| | - Gabriella R Marriott
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW, Australia
| | - Lake-Ee Quek
- School of Mathematics and Statistics, The University of Sydney, Sydney, Australia
| | - Alice Katen
- School of Chemistry, University of New South Wales, Sydney, NSW, Australia
| | - Jacky Su
- School of Chemistry, University of New South Wales, Sydney, NSW, Australia
| | - Marin E Nelson
- Charles Perkins Centre, School of Life and Environmental Sciences, University of Sydney, Australia
| | - Gene Hart-Smith
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW, Australia
| | - Mark Larance
- Charles Perkins Centre, School of Life and Environmental Sciences, University of Sydney, Australia
| | - Veronica F Sebesfi
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW, Australia
| | - Jeff Cuff
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW, Australia
| | - Gabriella E Martyn
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW, Australia
| | - Elizabeth Childress
- Department of Chemistry and VT Center for Drug Discovery, Virginia Tech, Blacksburg, VA, USA
| | - Stephanie J Alexopoulos
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW, Australia
| | - Ivan K Poon
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, Australia
| | - Maree C Faux
- Walter and Eliza Hall Institute of Medical Research, Melbourne, VIC, Australia
| | - Antony W Burgess
- Walter and Eliza Hall Institute of Medical Research, Melbourne, VIC, Australia
| | - Glen Reid
- Concord Medical School, Asbestos Disease Research Institute, University of Sydney, Australia
| | - Joshua A McCarroll
- Children's Cancer Institute, Lowy Cancer Research Centre, University of New South Wales Sydney, New South Wales, Australia
| | - Webster L Santos
- Department of Chemistry and VT Center for Drug Discovery, Virginia Tech, Blacksburg, VA, USA
| | - Kate Gr Quinlan
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW, Australia
| | - Nigel Turner
- School of Medical Sciences, University of New South Wales, Sydney, NSW, Australia
| | - Daniel J Fazakerley
- Charles Perkins Centre, School of Life and Environmental Sciences, University of Sydney, Australia
| | - Naresh Kumar
- School of Chemistry, University of New South Wales, Sydney, NSW, Australia
| | - Kyle L Hoehn
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW, Australia.
| |
Collapse
|
8
|
Lagziel S, Lee WD, Shlomi T. Studying metabolic flux adaptations in cancer through integrated experimental-computational approaches. BMC Biol 2019; 17:51. [PMID: 31272436 PMCID: PMC6609376 DOI: 10.1186/s12915-019-0669-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Affiliation(s)
| | | | - Tomer Shlomi
- Faculty of Computer Science, Technion, Haifa, Israel. .,Faculty of Biology, Technion, Haifa, Israel. .,Lokey Center for Life Science and Engineering, Technion, Haifa, Israel.
| |
Collapse
|
9
|
Snail-Overexpression Induces Epithelial-mesenchymal Transition and Metabolic Reprogramming in Human Pancreatic Ductal Adenocarcinoma and Non-tumorigenic Ductal Cells. J Clin Med 2019; 8:jcm8060822. [PMID: 31181802 PMCID: PMC6617272 DOI: 10.3390/jcm8060822] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 06/05/2019] [Accepted: 06/05/2019] [Indexed: 12/30/2022] Open
Abstract
The zinc finger transcription factor Snail is a known effector of epithelial-to-mesenchymal transition (EMT), a process that underlies the enhanced invasiveness and chemoresistance of common to cancerous cells. Induction of Snail-driven EMT has also been shown to drive a range of pro-survival metabolic adaptations in different cancers. In the present study, we sought to determine the specific role that Snail has in driving EMT and adaptive metabolic programming in pancreatic ductal adenocarcinoma (PDAC) by overexpressing Snail in a PDAC cell line, Panc1, and in immortalized, non-tumorigenic human pancreatic ductal epithelial (HPDE) cells. Snail overexpression was able to induce EMT in both pancreatic cell lines through suppression of epithelial markers and upregulation of mesenchymal markers alongside changes in cell morphology and enhanced migratory capacity. Snail-overexpressed pancreatic cells additionally displayed increased glucose uptake and lactate production with concomitant reduction in oxidative metabolism measurements. Snail overexpression reduced maximal respiration in both Panc1 and HPDE cells, with further reductions seen in ATP production, spare respiratory capacity and non-mitochondrial respiration in Snail overexpressing Panc1 cells. Accordingly, lower expression of mitochondrial electron transport chain proteins was observed with Snail overexpression, particularly within Panc1 cells. Modelling of 13C metabolite flux within both cell lines revealed decreased carbon flux from glucose in the TCA cycle in snai1-overexpressing Panc1 cells only. This work further highlights the role that Snail plays in EMT and demonstrates its specific effects on metabolic reprogramming of glucose metabolism in PDAC.
Collapse
|
10
|
Quek LE, Turner N. Using the Human Genome-Scale Metabolic Model Recon 2 for Steady-State Flux Analysis of Cancer Cell Metabolism. Methods Mol Biol 2019; 1928:479-489. [PMID: 30725471 DOI: 10.1007/978-1-4939-9027-6_25] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Flux analysis is performed to infer intracellular metabolic activity using measured rates. By applying the highly curated human metabolic reconstruction Recon 2 as the reference model, the investigation of cancer cell metabolic fluxes can encompass the full metabolic potential of a human cell. But in its full form, Recon 2 is unsuitable for conventional metabolic flux analysis due to a large number of redundant elements. Here, we describe a procedure to reduce Recon 2 to an appropriate scale for cancer cell flux analysis such that calculated flux intervals are still informative, without compromising the opportunity to explore alternative pathways encoded in Recon 2 that may reveal novel metabolic features.
Collapse
Affiliation(s)
- Lake-Ee Quek
- School of Mathematics and Statistics, The University of Sydney, Sydney, NSW, Australia.
| | - Nigel Turner
- Department of Pharmacology, School of Medical Sciences, UNSW Australia, Sydney, NSW, Australia.
| |
Collapse
|
11
|
Muir A, Danai LV, Vander Heiden MG. Microenvironmental regulation of cancer cell metabolism: implications for experimental design and translational studies. Dis Model Mech 2018; 11:dmm035758. [PMID: 30104199 PMCID: PMC6124553 DOI: 10.1242/dmm.035758] [Citation(s) in RCA: 81] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Cancers have an altered metabolism, and there is interest in understanding precisely how oncogenic transformation alters cellular metabolism and how these metabolic alterations can translate into therapeutic opportunities. Researchers are developing increasingly powerful experimental techniques to study cellular metabolism, and these techniques have allowed for the analysis of cancer cell metabolism, both in tumors and in ex vivo cancer models. These analyses show that, while factors intrinsic to cancer cells such as oncogenic mutations, alter cellular metabolism, cell-extrinsic microenvironmental factors also substantially contribute to the metabolic phenotype of cancer cells. These findings highlight that microenvironmental factors within the tumor, such as nutrient availability, physical properties of the extracellular matrix, and interactions with stromal cells, can influence the metabolic phenotype of cancer cells and might ultimately dictate the response to metabolically targeted therapies. In an effort to better understand and target cancer metabolism, this Review focuses on the experimental evidence that microenvironmental factors regulate tumor metabolism, and on the implications of these findings for choosing appropriate model systems and experimental approaches.
Collapse
Affiliation(s)
- Alexander Muir
- Koch Institute for Integrative Cancer Research, Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Laura V Danai
- Department of Biochemistry and Molecular Biology, University of Massachusetts Amherst, Amherst, MA 01003, USA
| | - Matthew G Vander Heiden
- Koch Institute for Integrative Cancer Research, Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Department of Biochemistry and Molecular Biology, University of Massachusetts Amherst, Amherst, MA 01003, USA
- Dana-Farber Cancer Institute, Boston, MA 02115, USA
| |
Collapse
|
12
|
van Geldermalsen M, Quek LE, Turner N, Freidman N, Pang A, Guan YF, Krycer JR, Ryan R, Wang Q, Holst J. Benzylserine inhibits breast cancer cell growth by disrupting intracellular amino acid homeostasis and triggering amino acid response pathways. BMC Cancer 2018; 18:689. [PMID: 29940911 PMCID: PMC6019833 DOI: 10.1186/s12885-018-4599-8] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Accepted: 06/15/2018] [Indexed: 01/22/2023] Open
Abstract
Background Cancer cells require increased levels of nutrients such as amino acids to sustain their rapid growth. In particular, leucine and glutamine have been shown to be important for growth and proliferation of some breast cancers, and therefore targeting the primary cell-surface transporters that mediate their uptake, L-type amino acid transporter 1 (LAT1) and alanine, serine, cysteine-preferring transporter 2 (ASCT2), is a potential therapeutic strategy. Methods The ASCT2 inhibitor, benzylserine (BenSer), is also able to block LAT1 activity, thus inhibiting both leucine and glutamine uptake. We therefore aimed to investigate the effects of BenSer in breast cancer cell lines to determine whether combined LAT1 and ASCT2 inhibition could inhibit cell growth and proliferation. Results BenSer treatment significantly inhibited both leucine and glutamine uptake in MCF-7, HCC1806 and MDA-MB-231 breast cancer cells, causing decreased cell viability and cell cycle progression. These effects were not primarily leucine-mediated, as BenSer was more cytostatic than the LAT family inhibitor, BCH. Oocyte uptake assays with ectopically expressed amino acid transporters identified four additional targets of BenSer, and gas chromatography-mass spectrometry (GCMS) analysis of intracellular amino acid concentrations revealed that this BenSer-mediated inhibition of amino acid uptake was sufficient to disrupt multiple pathways of amino acid metabolism, causing reduced lactate production and activation of an amino acid response (AAR) through activating transcription factor 4 (ATF4). Conclusions Together these data showed that BenSer blockade inhibited breast cancer cell growth and viability through disruption of intracellular amino acid homeostasis and inhibition of downstream metabolic and growth pathways. Electronic supplementary material The online version of this article (10.1186/s12885-018-4599-8) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Michelle van Geldermalsen
- Origins of Cancer Program, Centenary Institute, University of Sydney, Locked Bag 6, Newtown, NSW, 2042, Australia.,Sydney Medical School, University of Sydney, Sydney, Australia
| | - Lake-Ee Quek
- School of Mathematics and Statistics, University of Sydney, Sydney, Australia
| | - Nigel Turner
- School of Medical Sciences, University of New South Wales, Sydney, Australia
| | - Natasha Freidman
- Transporter Biology Group, Discipline of Pharmacology, Faculty of Medicine and Health, University of Sydney, Sydney, Australia
| | - Angel Pang
- Origins of Cancer Program, Centenary Institute, University of Sydney, Locked Bag 6, Newtown, NSW, 2042, Australia.,Sydney Medical School, University of Sydney, Sydney, Australia
| | - Yi Fang Guan
- Origins of Cancer Program, Centenary Institute, University of Sydney, Locked Bag 6, Newtown, NSW, 2042, Australia.,Sydney Medical School, University of Sydney, Sydney, Australia
| | - James R Krycer
- School of Life and Environmental Sciences, University of Sydney, Sydney, Australia.,Charles Perkins Centre, University of Sydney, Sydney, Australia
| | - Renae Ryan
- Transporter Biology Group, Discipline of Pharmacology, Faculty of Medicine and Health, University of Sydney, Sydney, Australia
| | - Qian Wang
- Origins of Cancer Program, Centenary Institute, University of Sydney, Locked Bag 6, Newtown, NSW, 2042, Australia.,Sydney Medical School, University of Sydney, Sydney, Australia
| | - Jeff Holst
- Origins of Cancer Program, Centenary Institute, University of Sydney, Locked Bag 6, Newtown, NSW, 2042, Australia. .,Sydney Medical School, University of Sydney, Sydney, Australia.
| |
Collapse
|
13
|
Smith TB, Patel K, Munford H, Peet A, Tennant DA, Jeeves M, Ludwig C. High-Speed Tracer Analysis of Metabolism (HS-TrAM). Wellcome Open Res 2018. [DOI: 10.12688/wellcomeopenres.13387.1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Tracing the fate of stable isotopically-enriched nutrients is a sophisticated method of describing and quantifying the activity of metabolic pathways. Nuclear Magnetic Resonance (NMR) offers high resolution data, yet is under-utilised due to length of time required to collect the data, quantification requiring multiple samples and complicated analysis. Here we present two techniques, quantitative spectral filters and enhancement of the splitting due to J-coupling in 1H,13C-HSQC NMR spectra, which allow the rapid collection of NMR data in a quantitative manner on a single sample. The reduced duration of HSQC spectra data acquisition opens up the possibility of real-time tracing of metabolism including the study of metabolic pathways in vivo. We show how these novel techniques can be used to trace the fate of labelled nutrients in a whole organ model of kidney preservation prior to transplantation using a porcine kidney as a model organ, and also show how the use of multiple nutrients, differentially labelled with 13C and 15N, can be used to provide additional information with which to profile metabolic pathways.
Collapse
|
14
|
Smith TB, Patel K, Munford H, Peet A, Tennant DA, Jeeves M, Ludwig C. High-Speed Tracer Analysis of Metabolism (HS-TrAM). Wellcome Open Res 2018; 3:5. [PMID: 29503875 PMCID: PMC5811808 DOI: 10.12688/wellcomeopenres.13387.2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/03/2018] [Indexed: 12/29/2022] Open
Abstract
Tracing the fate of stable isotopically-enriched nutrients is a sophisticated method of describing and quantifying the activity of metabolic pathways. Nuclear Magnetic Resonance (NMR) spectroscopy offers high resolution data in terms of resolving metabolic pathway utilisation. Despite this, NMR spectroscopy is under-utilised due to length of time required to collect the data, quantification requiring multiple samples and complicated analysis. Here we present two techniques, quantitative spectral filters and enhancement of the splitting of
13C signals due to homonuclear
13C,
13C or heteronuclear
13C,
15N J-coupling in
1H,
13C-HSQC NMR spectra. Together, these allow the rapid collection of NMR spectroscopy data in a quantitative manner on a single sample. The reduced duration of HSQC spectra data acquisition opens up the possibility of real-time tracing of metabolism including the study of metabolic pathways
in vivo. We show how these techniques can be used to trace the fate of labelled nutrients in a whole organ model of kidney preservation prior to transplantation using a porcine kidney as a model organ. In addition, we show how the use of multiple nutrients, differentially labelled with
13C and
15N, can be used to provide additional information with which to profile metabolic pathways.
Collapse
Affiliation(s)
- Thomas Brendan Smith
- Institute of Metabolism and Systems Research, University of Birmingham, West Midlands, UK
| | - Kamlesh Patel
- Institute of Metabolism and Systems Research, University of Birmingham, West Midlands, UK
| | - Haydn Munford
- Institute of Metabolism and Systems Research, University of Birmingham, West Midlands, UK
| | - Andrew Peet
- Institute of Cancer and Genomic Sciences, University of Birmingham, West Midlands, UK.,Birmingham Children's Hospital NHS Foundation Trust, West Midlands, UK
| | - Daniel A Tennant
- Institute of Metabolism and Systems Research, University of Birmingham, West Midlands, UK
| | - Mark Jeeves
- Institute of Cancer and Genomic Sciences, University of Birmingham, West Midlands, UK
| | - Christian Ludwig
- Institute of Metabolism and Systems Research, University of Birmingham, West Midlands, UK
| |
Collapse
|