PMID- 28630930 OWN - NLM STAT- MEDLINE DCOM- 20190701 LR - 20190701 IS - 2375-2548 (Electronic) IS - 2375-2548 (Linking) VI - 3 IP - 6 DP - 2017 Jun TI - Real-time quantitative analysis of metabolic flux in live cells using a hyperpolarized micromagnetic resonance spectrometer. PG - e1700341 LID - 10.1126/sciadv.1700341 [doi] LID - e1700341 AB - Metabolic reprogramming is widely considered a hallmark of cancer, and understanding metabolic dynamics described by the conversion rates or "fluxes" of metabolites can shed light onto biological processes of tumorigenesis and response to therapy. For real-time analysis of metabolic flux in intact cells or organisms, magnetic resonance (MR) spectroscopy and imaging methods have been developed in conjunction with hyperpolarization of nuclear spins. These approaches enable noninvasive monitoring of tumor progression and treatment efficacy and are being tested in multiple clinical trials. However, because of their limited sensitivity, these methods require a larger number of cells, on the order of 10(7), which is impractical for analyzing scant target cells or mass-limited samples. We present a new technology platform, a hyperpolarized micromagnetic resonance spectrometer (HMRS), that achieves real-time, 10(3)-fold more sensitive metabolic analysis on live cells. This platform enables quantification of the metabolic flux in a wide range of cell types, including leukemia stem cells, without significant changes in viability, which allows downstream molecular analyses in tandem. It also enables rapid assessment of metabolic changes by a given drug, which may direct therapeutic choices in patients. We further advanced this platform for high-throughput analysis of hyperpolarized molecules by integrating a three-dimensionally printed microfluidic system. The HMRS platform holds promise as a sensitive method for studying metabolic dynamics in mass-limited samples, including primary cancer cells, providing novel therapeutic targets and an enhanced understanding of cellular metabolism. FAU - Jeong, Sangmoo AU - Jeong S AD - Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA. AD - Molecular Pharmacology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA. FAU - Eskandari, Roozbeh AU - Eskandari R AD - Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA. AD - Molecular Pharmacology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA. FAU - Park, Sun Mi AU - Park SM AD - Molecular Pharmacology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA. AD - Center for Cell Engineering, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA. FAU - Alvarez, Julio AU - Alvarez J AD - Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA. AD - Molecular Pharmacology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA. FAU - Tee, Sui Seng AU - Tee SS AD - Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA. AD - Molecular Pharmacology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA. FAU - Weissleder, Ralph AU - Weissleder R AD - Center for Systems Biology, Massachusetts General Hospital, Boston, MA 02114, USA. AD - Department of Radiology, Harvard Medical School, Boston, MA 02114, USA. AD - Department of Systems Biology, Harvard Medical School, Boston, MA 02114, USA. FAU - Kharas, Michael G AU - Kharas MG AUID- ORCID: 0000-0002-1165-6991 AD - Molecular Pharmacology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA. AD - Center for Cell Engineering, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA. AD - Weill Cornell Medical College, New York, NY 10065, USA. FAU - Lee, Hakho AU - Lee H AUID- ORCID: 0000-0002-0087-0909 AD - Center for Systems Biology, Massachusetts General Hospital, Boston, MA 02114, USA. AD - Department of Radiology, Harvard Medical School, Boston, MA 02114, USA. FAU - Keshari, Kayvan R AU - Keshari KR AD - Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA. AD - Molecular Pharmacology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA. AD - Weill Cornell Medical College, New York, NY 10065, USA. LA - eng GR - R00 EB014328/EB/NIBIB NIH HHS/United States GR - R21 CA205322/CA/NCI NIH HHS/United States GR - P30 CA008748/CA/NCI NIH HHS/United States GR - R21 CA212958/CA/NCI NIH HHS/United States GR - R01 HL113156/HL/NHLBI NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20170616 PL - United States TA - Sci Adv JT - Science advances JID - 101653440 RN - 0 (Antineoplastic Agents) SB - IM MH - Antineoplastic Agents/pharmacology MH - Cell Line, Tumor MH - Cells, Cultured MH - *Energy Metabolism/drug effects MH - Humans MH - Magnetic Resonance Spectroscopy/*methods MH - Neoplasms/metabolism MH - Neoplastic Stem Cells/metabolism MH - Sensitivity and Specificity PMC - PMC5473678 OTO - NOTNLM OT - Cancer metabolism OT - Hyperpolarization OT - Leukemia stem cells OT - Nuclear magnetic resonance OT - metabolic flux OT - microfluidics EDAT- 2017/06/21 06:00 MHDA- 2019/07/02 06:00 PMCR- 2017/06/16 CRDT- 2017/06/21 06:00 PHST- 2017/02/01 00:00 [received] PHST- 2017/04/26 00:00 [accepted] PHST- 2017/06/21 06:00 [entrez] PHST- 2017/06/21 06:00 [pubmed] PHST- 2019/07/02 06:00 [medline] PHST- 2017/06/16 00:00 [pmc-release] AID - 1700341 [pii] AID - 10.1126/sciadv.1700341 [doi] PST - epublish SO - Sci Adv. 2017 Jun 16;3(6):e1700341. doi: 10.1126/sciadv.1700341. eCollection 2017 Jun.