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Sun C, Du W, Wang B, Yao Z, Liu J, Wang J, Xie W, Wu T, Fan Y, Yang H. Synthesis of a new deoxyglucose derivative modified near-infrared fluorescent probe for tumor diagnosis. Biochem Biophys Res Commun 2017; 488:340-347. [PMID: 28499871 DOI: 10.1016/j.bbrc.2017.05.046] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2017] [Accepted: 05/08/2017] [Indexed: 10/19/2022]
Abstract
Malignant neoplasms exhibit an elevated rate of glycolysis and a high demand for glucose over normal cells. This characteristic can be exploited for in vivo imaging and tumor targeting examined. In this manuscript, we describe the synthesis of near-infrared (NIR) fluorochrome IR-822-labeled 2-amino-2-deoxy-d-glucose (DG) for optical imaging of tumors in mice. NIR fluorescent dye IR-820 was subsequently conjugated with 3-Mercaptopropionic acid and 2-amino-2-deoxy-d-glucose to form IR-822-DG. The cell experiments and acute toxicity studies demonstrated the low toxicity of IR-822-DG to normal cells/tissues. The dynamic behavior and targeting ability of IR-822-DG in normal mice was investigated with a NIR fluorescence imaging system. The in vitro and in vivo tumor targeting capabilities of IR-822-DG were evaluated in tumor cells and tumor bearing mice, respectively. Results demonstrated that IR-822-DG actively and efficiently accumulated at the site of the tumor. The probe also exhibited good photostability and excellent cell membrane permeability. The study indicates the broad applicability of IR-822-DG for tumors diagnosis, especially in the glucose-related pathologies.
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Affiliation(s)
- Chunlong Sun
- Shandong Provincial Key Laboratory of Eco-environmental Science for Yellow River Delta, Binzhou University, Binzhou 256600, China; School of Bioengineering, Binzhou University, Binzhou 256600, China.
| | - Wen Du
- Shandong Provincial Key Laboratory of Eco-environmental Science for Yellow River Delta, Binzhou University, Binzhou 256600, China; School of Bioengineering, Binzhou University, Binzhou 256600, China.
| | - Baoqin Wang
- School of Bioengineering, Binzhou University, Binzhou 256600, China
| | - Zhigang Yao
- School of Bioengineering, Binzhou University, Binzhou 256600, China
| | - Junhua Liu
- Shandong Provincial Key Laboratory of Eco-environmental Science for Yellow River Delta, Binzhou University, Binzhou 256600, China
| | - Jun Wang
- School of Bioengineering, Binzhou University, Binzhou 256600, China
| | - Wenjun Xie
- School of Bioengineering, Binzhou University, Binzhou 256600, China
| | - Tao Wu
- Shandong Provincial Engineering and Technology Research Center for Wild Plant Resources Development and Application of Yellow River Delta, School of Bioengineering, Binzhou University, Binzhou 256600, China
| | - Yanhui Fan
- School of Bioengineering, Binzhou University, Binzhou 256600, China
| | - Hongjun Yang
- Shandong Provincial Key Laboratory of Eco-environmental Science for Yellow River Delta, Binzhou University, Binzhou 256600, China
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Sun C, Zhang H, Du W, Wang B, Ji M. Synthesis of a Novel IR-822-Met near-infrared probe for in vivo tumor diagnosis. Biotechnol Lett 2017; 39:491-499. [DOI: 10.1007/s10529-016-2275-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2016] [Accepted: 11/29/2016] [Indexed: 11/24/2022]
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Jin Q, Paunesku T, Lai B, Gleber SC, Chen SI, Finney L, Vine D, Vogt S, Woloschak G, Jacobsen C. Preserving elemental content in adherent mammalian cells for analysis by synchrotron-based x-ray fluorescence microscopy. J Microsc 2016; 265:81-93. [PMID: 27580164 PMCID: PMC5217071 DOI: 10.1111/jmi.12466] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Revised: 07/11/2016] [Accepted: 08/02/2016] [Indexed: 01/20/2023]
Abstract
Trace metals play important roles in biological function, and x-ray fluorescence microscopy (XFM) provides a way to quantitatively image their distribution within cells. The faithfulness of these measurements is dependent on proper sample preparation. Using mouse embryonic fibroblast NIH/3T3 cells as an example, we compare various approaches to the preparation of adherent mammalian cells for XFM imaging under ambient temperature. Direct side-by-side comparison shows that plunge-freezing-based cryoimmobilization provides more faithful preservation than conventional chemical fixation for most biologically important elements including P, S, Cl, K, Fe, Cu, Zn and possibly Ca in adherent mammalian cells. Although cells rinsed with fresh media had a great deal of extracellular background signal for Cl and Ca, this approach maintained cells at the best possible physiological status before rapid freezing and it does not interfere with XFM analysis of other elements. If chemical fixation has to be chosen, the combination of 3% paraformaldehyde and 1.5 % glutaraldehyde preserves S, Fe, Cu and Zn better than either fixative alone. When chemically fixed cells were subjected to a variety of dehydration processes, air drying was proved to be more suitable than other drying methods such as graded ethanol dehydration and freeze drying. This first detailed comparison for x-ray fluorescence microscopy shows how detailed quantitative conclusions can be affected by the choice of cell preparation method.
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Affiliation(s)
- Qiaoling Jin
- Department of Physics & Astronomy, Weinberg College of Arts and Sciences, Evanston, Illinois, U.S.A
| | - Tatjana Paunesku
- Department of Radiation Oncology, Northwestern University, Chicago, Illinois, U.S.A
| | - Barry Lai
- Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois, U.S.A
| | | | - S I Chen
- Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois, U.S.A
| | - Lydia Finney
- Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois, U.S.A
| | - David Vine
- Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois, U.S.A
| | - Stefan Vogt
- Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois, U.S.A
| | - Gayle Woloschak
- Department of Radiation Oncology, Northwestern University, Chicago, Illinois, U.S.A
| | - Chris Jacobsen
- Department of Physics & Astronomy, Weinberg College of Arts and Sciences, Evanston, Illinois, U.S.A.,Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois, U.S.A
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Colvin RA, Jin Q, Lai B, Kiedrowski L. Visualizing Metal Content and Intracellular Distribution in Primary Hippocampal Neurons with Synchrotron X-Ray Fluorescence. PLoS One 2016; 11:e0159582. [PMID: 27434052 PMCID: PMC4951041 DOI: 10.1371/journal.pone.0159582] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Accepted: 07/04/2016] [Indexed: 02/03/2023] Open
Abstract
Increasing evidence suggests that metal dyshomeostasis plays an important role in human neurodegenerative diseases. Although distinctive metal distributions are described for mature hippocampus and cortex, much less is known about metal levels and intracellular distribution in individual hippocampal neuronal somata. To solve this problem, we conducted quantitative metal analyses utilizing synchrotron radiation X-Ray fluorescence on frozen hydrated primary cultured neurons derived from rat embryonic cortex (CTX) and two regions of the hippocampus: dentate gyrus (DG) and CA1. Comparing average metal contents showed that the most abundant metals were calcium, iron, and zinc, whereas metals such as copper and manganese were less than 10% of zinc. Average metal contents were generally similar when compared across neurons cultured from CTX, DG, and CA1, except for manganese that was larger in CA1. However, each metal showed a characteristic spatial distribution in individual neuronal somata. Zinc was uniformly distributed throughout the cytosol, with no evidence for the existence of previously identified zinc-enriched organelles, zincosomes. Calcium showed a peri-nuclear distribution consistent with accumulation in endoplasmic reticulum and/or mitochondria. Iron showed 2-3 distinct highly concentrated puncta only in peri-nuclear locations. Notwithstanding the small sample size, these analyses demonstrate that primary cultured neurons show characteristic metal signatures. The iron puncta probably represent iron-accumulating organelles, siderosomes. Thus, the metal distributions observed in mature brain structures are likely the result of both intrinsic neuronal factors that control cellular metal content and extrinsic factors related to the synaptic organization, function, and contacts formed and maintained in each region.
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Affiliation(s)
- Robert A. Colvin
- Department of Biological Sciences, Interdisciplinary Graduate Program in Molecular and Cellular Biology, Neuroscience Program, Ohio University, Athens, Ohio, United States of America
| | - Qiaoling Jin
- Department of Physics & Astronomy, Northwestern University, Evanston, Illinois, United States of America
| | - Barry Lai
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Lemont, Illinois, United States of America
| | - Lech Kiedrowski
- The Psychiatric Institute, Departments of Psychiatry and Pharmacology, the University of Illinois at Chicago, Chicago, Illinois, United States of America
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Chen S, Paunesku T, Yuan Y, Jin Q, Hornberger B, Flachenecker C, Lai B, Brister K, Jacobsen C, Woloschak G, Vogt S. The Bionanoprobe: Synchrotron-based Hard X-ray Fluorescence Microscopy for 2D/3D Trace Element Mapping. MICROSCOPY TODAY 2015; 23:26-29. [PMID: 27398077 PMCID: PMC4938013 DOI: 10.1017/s1551929515000401] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Si Chen
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA
| | - Tatjana Paunesku
- Department of Radiation Oncology, Northwestern University, Chicago, IL 60611, USA
| | - Ye Yuan
- Department of Radiation Oncology, Northwestern University, Chicago, IL 60611, USA
| | - Qiaoling Jin
- Department of Physics and Astronomy, Northwestern University, Evanston, IL 60208, USA
| | | | | | - Barry Lai
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA
| | - Keith Brister
- Synchrotron Research Center, Northwestern University, Argonne, IL 60439, USA
| | - Chris Jacobsen
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA
- Department of Physics and Astronomy, Northwestern University, Evanston, IL 60208, USA
- Carl Zeiss X-ray Microscopy, Inc., Pleasanton, CA 94588, USA
- Chemistry of Life Processes Institute, Northwestern University, Evanston, IL 60208, USA
| | - Gayle Woloschak
- Department of Radiation Oncology, Northwestern University, Chicago, IL 60611, USA
| | - Stefan Vogt
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA
- Department of Physics and Astronomy, Northwestern University, Evanston, IL 60208, USA
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