1
|
Tada T, Mizuno Y, Shibata Y, Yasui H, Kuge Y. Application of copper (I) selective ligands for PET imaging of reactive oxygen species through metabolic trapping. Nucl Med Biol 2024; 134-135:108914. [PMID: 38733873 DOI: 10.1016/j.nucmedbio.2024.108914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 03/29/2024] [Accepted: 04/24/2024] [Indexed: 05/13/2024]
Abstract
INTRODUCTION Reactive oxygen species (ROS) are attractive targets for clinical PET imaging. In this study, we hypothesized that PET imaging of ROS would be possible by using chelating ligands (L) that form stable complexes with copper (I) but not with copper (II), based on metabolic trapping. Namely, when [64Cu][CuI(L)2]+ is oxidized by ROS, the oxidized complex will release [64Cu]Cu2+. Then, the released [64Cu]Cu2+ will be trapped inside the cell, resulting in PET signal depending on the redox potential of ROS. To examine the potential of this novel molecular design for ROS imaging, we synthesized copper (I) complexes with bicinchoninic acid (BCA) disodium salt and bathocuproinedisulfonic acid (BCS) disodium salt and evaluated their reactivity with several kinds of ROS. In addition, the cellular uptake of [64Cu][CuI(BCS)2]3- and the stability of [64Cu][CuI(BCS)2]3- in a biological condition were also evaluated. METHODS [64Cu]Cu2+ was reduced to [64Cu]Cu+ by ascorbic acid and coordinated with BCA and BCS in the acetate buffer to synthesize [64Cu][CuI(BCA)2]3- and [64Cu][CuI(BCS)2]3-. The radiochemical yields were determined by thin-layer chromatography (TLC). After [64Cu][CuI(BCS)2]3- was incubated with hydroxyl radical, lipid peroxide, superoxide, and hydrogen peroxide, the percentage of released [64Cu]Cu2+ from the parent complex was evaluated by TLC. HT-1080 human fibrosarcoma cells were treated with 0.1 % Dimethyl sulfoxide (control), imidazole ketone erastin (IKE), or IKE + ferrostatin-1 (Fer-1). Then, the uptake of [64Cu][CuI(BCS)2]3- to HT-1080 cells in each group was evaluated as %Dose/mg protein. Lastly, [64Cu][CuI(BCS)2]3- was incubated in human plasma, and its intact ratio was determined by TLC. RESULTS The radiochemical yield of [64Cu][CuI(BCS)2]3- (86 ± 1 %) was higher than that of [64Cu][CuI(BCA)2]3- (44 ± 3 %). [64Cu][CuI(BCA)2]3- was unstable and partially decomposed on TLC. After [64Cu][CuI(BCS)2]3- was reacted with hydroxyl radical, lipid peroxide, and superoxide, 67 ± 2 %, 44 ± 13 %, and 22 ± 3 % of total radioactivity was detected as [64Cu]Cu2+, respectively. On the other hand, the reaction with hydrogen peroxide did not significantly increase the ratio of [64Cu]Cu2+ (4 ± 1 %). These results suggest that [64Cu][CuI(BCS)2]3- could be used for detecting high-redox-potential ROS such as hydroxyl radical and lipid peroxide with high selectivity. The cellular uptake values of [64Cu][CuI(BCS)2]3- in the control, IKE, and Fer-1 group were 42 ± 2, 54 ± 2, and 47 ± 5 %Dose/mg protein (n = 3), respectively, suggesting the ROS specific uptake of [64Cu][CuI(BCS)2]3-. On the other hand, the intact ratio after the incubation of [64Cu][CuI(BCS)2]3- in human plasma was 9 ± 5 %. CONCLUSION PET imaging of ROS would be possible by using a copper (I) selective ligand, based on metabolic trapping. Although improvement of the membrane permeability and the stability of copper (I) complexes is required, the present results pave the way for the development of novel 64Cu-labeled complexes for PET imaging of ROS.
Collapse
Affiliation(s)
- Tetsuro Tada
- Graduate School of Biomedical Science and Engineering, Hokkaido University, Hokkaido 060-0815, Japan
| | - Yuki Mizuno
- Central Institute of Isotope Science, Hokkaido University, Hokkaido 060-0815, Japan; Global Center for Biomedical Science and Engineering, Hokkaido University, Hokkaido 060-0815, Japan.
| | - Yuki Shibata
- Central Institute of Isotope Science, Hokkaido University, Hokkaido 060-0815, Japan
| | - Hironobu Yasui
- Faculty of Veterinary Medicine, Hokkaido University, Hokkaido 060-0818, Japan; One Health Research Center, Hokkaido University, Hokkaido 060-0818, Japan
| | - Yuji Kuge
- Central Institute of Isotope Science, Hokkaido University, Hokkaido 060-0815, Japan; Global Center for Biomedical Science and Engineering, Hokkaido University, Hokkaido 060-0815, Japan
| |
Collapse
|
2
|
Kim Y, Li C, Gu C, Fang Y, Tycksen E, Puri A, Pietka TA, Sivapackiam J, Kidd K, Park SJ, Johnson BG, Kmoch S, Duffield JS, Bleyer AJ, Jackrel ME, Urano F, Sharma V, Lindahl M, Chen YM. MANF stimulates autophagy and restores mitochondrial homeostasis to treat autosomal dominant tubulointerstitial kidney disease in mice. Nat Commun 2023; 14:6493. [PMID: 37838725 PMCID: PMC10576802 DOI: 10.1038/s41467-023-42154-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Accepted: 09/25/2023] [Indexed: 10/16/2023] Open
Abstract
Misfolded protein aggregates may cause toxic proteinopathy, including autosomal dominant tubulointerstitial kidney disease due to uromodulin mutations (ADTKD-UMOD), a leading hereditary kidney disease. There are no targeted therapies. In our generated mouse model recapitulating human ADTKD-UMOD carrying a leading UMOD mutation, we show that autophagy/mitophagy and mitochondrial biogenesis are impaired, leading to cGAS-STING activation and tubular injury. Moreover, we demonstrate that inducible tubular overexpression of mesencephalic astrocyte-derived neurotrophic factor (MANF), a secreted endoplasmic reticulum protein, after the onset of disease stimulates autophagy/mitophagy, clears mutant UMOD, and promotes mitochondrial biogenesis through p-AMPK enhancement, thus protecting kidney function in our ADTKD mouse model. Conversely, genetic ablation of MANF in the mutant thick ascending limb tubular cells worsens autophagy suppression and kidney fibrosis. Together, we have discovered MANF as a biotherapeutic protein and elucidated previously unknown mechanisms of MANF in the regulation of organelle homeostasis, which may have broad therapeutic applications to treat various proteinopathies.
Collapse
Affiliation(s)
- Yeawon Kim
- Division of Nephrology, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | - Chuang Li
- Division of Nephrology, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | - Chenjian Gu
- Division of Nephrology, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | - Yili Fang
- Division of Nephrology, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | - Eric Tycksen
- Genome Technology Access Center, McDonnell Genome Institute, Washington University School of Medicine, St. Louis, MO, USA
| | - Anuradhika Puri
- Department of Chemistry, Washington University, St. Louis, MO, USA
| | - Terri A Pietka
- Nutrition and Geriatrics Division, Washington University School of Medicine, St. Louis, MO, USA
| | - Jothilingam Sivapackiam
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, MO, USA
| | - Kendrah Kidd
- Section of Nephrology, Wake Forest University School of Medicine, Winston-Salem, NC, USA
- Research Unit of Rare Diseases, Department of Pediatric and Inherited Metabolic Disorders, First Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Sun-Ji Park
- Division of Nephrology, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | - Bryce G Johnson
- Pfizer Worldwide Research and Development, Inflammation & Immunology, Cambridge, MA, USA
| | - Stanislav Kmoch
- Section of Nephrology, Wake Forest University School of Medicine, Winston-Salem, NC, USA
- Research Unit of Rare Diseases, Department of Pediatric and Inherited Metabolic Disorders, First Faculty of Medicine, Charles University, Prague, Czech Republic
| | | | - Anthony J Bleyer
- Section of Nephrology, Wake Forest University School of Medicine, Winston-Salem, NC, USA
- Research Unit of Rare Diseases, Department of Pediatric and Inherited Metabolic Disorders, First Faculty of Medicine, Charles University, Prague, Czech Republic
| | | | - Fumihiko Urano
- Division of Endocrinology, Metabolism, and Lipid Research, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | - Vijay Sharma
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, MO, USA
- Department of Neurology, Washington University School of Medicine, St. Louis, MO, USA
- Department of Biomedical Engineering, School of Engineering & Applied Science, Washington University, St. Louis, MO, USA
| | - Maria Lindahl
- Institute of Biotechnology, HiLIFE, University of Helsinki, Helsinki, Finland
| | - Ying Maggie Chen
- Division of Nephrology, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA.
- Department of Cell Biology & Physiology, Washington University School of Medicine, St. Louis, MO, USA.
| |
Collapse
|
3
|
Nie Z, Zhang K, Chen X, Wang J, Gao H, Zheng B, Wu Q, Guo Y, Liu X, Wang X. A Multifunctional Integrated Metal-Free MRI Agent for Early Diagnosis of Oxidative Stress in a Mouse Model of Diabetic Cardiomyopathy. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2206171. [PMID: 36596646 PMCID: PMC9982554 DOI: 10.1002/advs.202206171] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Revised: 12/18/2022] [Indexed: 06/17/2023]
Abstract
Reactive oxygen species (ROS) are closely associated with the progression of diabetic cardiomyopathy (DCM) and can be regarded as one of its early biomarkers. Magnetic resonance imaging (MRI) is emerging as a powerful tool for the detection of cardiac abnormalities, but the sensitive and direct ROS-response MRI probe remains to be developed. This restricts the early diagnosis of DCM and prevents timely clinical interventions, resulting in serious and irreversible pathophysiological abnormalities. Herein, a novel ROS-response contrast-enhanced MRI nanoprobe (RCMN) is developed by multi-functionalizing fluorinated carbon nanosheets (FCNs) with multi-hydroxyl and 2,2,6,6-tetramethylpiperidin-1-oxyl groups. RCMNs capture ROS and then gather in the heart provisionally, which triggers MRI signal changes to realize the in vivo detection of ROS. In contrast to the clinical MRI agents, the cardiac abnormalities of disease mice is detected 8 weeks in advance with the assistance of RCMNs, which greatly advances the diagnostic window of DCM. To the best of the knowledge, this is the first ROS-response metal-free T2 -weighted MRI probe for the early diagnosis of DCM mice model. Furthermore, RCMNs can timely scavenge excessively produced ROS to alleviate oxidative stress.
Collapse
Affiliation(s)
- Zhuang Nie
- College of Polymer Science and EngineeringState Key Laboratory of Polymer Material and EngineeringSichuan UniversityChengdu610065P. R. China
| | - Kun Zhang
- Department of RadiologyKey Laboratory of Birth Defects and Related Diseases of Women and Children of Ministry of EducationWest China Second University HospitalSichuan University20# South Renmin RoadChengduSichuan610041P. R. China
| | - Xinyu Chen
- College of Polymer Science and EngineeringState Key Laboratory of Polymer Material and EngineeringSichuan UniversityChengdu610065P. R. China
| | - Jingxin Wang
- Department of RadiologyKey Laboratory of Birth Defects and Related Diseases of Women and Children of Ministry of EducationWest China Second University HospitalSichuan University20# South Renmin RoadChengduSichuan610041P. R. China
| | - Huile Gao
- Key Laboratory of Drug‐Targeting and Drug Delivery System of the Education MinistrySichuan Engineering Laboratory for Plant‐Sourced Drug and Sichuan Research Center for Drug Precision Industrial TechnologyWest China School of PharmacySichuan UniversityChengdu610064P. R. China
| | - Bingwen Zheng
- Time Medical Ltd., Hong Kong Science & Technology ParkHong Kong999077P. R. China
| | - Qihong Wu
- Department of RadiologyKey Laboratory of Birth Defects and Related Diseases of Women and Children of Ministry of EducationWest China Second University HospitalSichuan University20# South Renmin RoadChengduSichuan610041P. R. China
| | - Yingkun Guo
- Department of RadiologyKey Laboratory of Birth Defects and Related Diseases of Women and Children of Ministry of EducationWest China Second University HospitalSichuan University20# South Renmin RoadChengduSichuan610041P. R. China
| | - Xiangyang Liu
- College of Polymer Science and EngineeringState Key Laboratory of Polymer Material and EngineeringSichuan UniversityChengdu610065P. R. China
| | - Xu Wang
- College of Polymer Science and EngineeringState Key Laboratory of Polymer Material and EngineeringSichuan UniversityChengdu610065P. R. China
| |
Collapse
|
4
|
Vorster M. Gallium-68 Labelled Radiopharmaceuticals for Imaging Inflammatory Disorders. Semin Nucl Med 2023; 53:199-212. [PMID: 36270829 DOI: 10.1053/j.semnuclmed.2022.08.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 08/18/2022] [Accepted: 08/22/2022] [Indexed: 12/24/2022]
Abstract
Inflammation is an important component of several chronic and debilitating diseases that result in significant morbidity and mortality. This is best evidenced within the cardiovascular system where it may manifest as atherosclerosis or myocarditis, and at the extreme end of the spectrum as myocardial infarction, ventricular remodeling, or cardiac failure. Early non-invasive detection and monitoring of inflammation in these and other settings may better guide patient management with resultant improved outcomes. Key role players in inflammation pathophysiology include chemokines, macrophages, neutrophils, fibroblasts, integrins, and reactive oxygen species, amongst others. Examples of receptor expression and over-expression include somatostatin receptors, CXCR4-, folate-, mannose-, TSPO- receptors and secretion of various vascular adhesion molecules (such as VCAM and ICAM). Gallium-68-based PET offers imaging possibilities for nearly all the major pathophysiological role players in inflammation, with mounting recent interest in macrophage differentiation, various forms of receptor expression and secretion of chemokines and vascular adhesion molecules. The advantages in terms of logistics and costs of having generator-produced PET probes available is well known, and a 68Ga-based tracer provides easily translatable theranostic possibilities to especially Lu-177. Some of the more versatile and better validated Ga-68-based inflammation probes include 68Ga-DOTA-TATE/NOC/TOC, 68Ga-NOTA-RGD, 68Ga-CXCR4, 68Ga-citrate and 68Ga-FAPI.
Collapse
Affiliation(s)
- Mariza Vorster
- Nuclear Medicine, Department of Nuclear Medicine at Inkosi Albert Luthuli Hospital, University of KwaZulu-Natal, Berea, KwaZulu-Natal, South Africa.
| |
Collapse
|
5
|
Distelmaier F, Klopstock T. Neuroimaging in mitochondrial disease. HANDBOOK OF CLINICAL NEUROLOGY 2023; 194:173-185. [PMID: 36813312 DOI: 10.1016/b978-0-12-821751-1.00016-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
The anatomic complexity of the brain in combination with its high energy demands makes this organ specifically vulnerable to defects of mitochondrial oxidative phosphorylation. Therefore, neurodegeneration is a hallmark of mitochondrial diseases. The nervous system of affected individuals typically shows selective regional vulnerability leading to distinct patterns of tissue damage. A classic example is Leigh syndrome, which causes symmetric alterations of basal ganglia and brain stem. Leigh syndrome can be caused by different genetic defects (>75 known disease genes) with variable disease onset ranging from infancy to adulthood. Other mitochondrial diseases are characterized by focal brain lesions, which is a core feature of MELAS syndrome (mitochondrial encephalopathy, lactic acidosis, and stroke-like episodes). Apart from gray matter, also white matter can be affected by mitochondrial dysfunction. White matter lesions vary depending on the underlying genetic defect and may progress into cystic cavities. In view of the recognizable patterns of brain damage in mitochondrial diseases, neuroimaging techniques play a key role in diagnostic work-up. In the clinical setting, magnetic resonance imaging (MRI) and MR spectroscopy (MRS) are the mainstay of diagnostic work-up. Apart from visualization of brain anatomy, MRS allows the detection of metabolites such as lactate, which is of specific interest in the context of mitochondrial dysfunction. However, it is important to note that findings like symmetric basal ganglia lesions on MRI or a lactate peak on MRS are not specific, and that there is a broad range of disorders that can mimic mitochondrial diseases on neuroimaging. In this chapter, we will review the spectrum of neuroimaging findings in mitochondrial diseases and discuss important differential diagnoses. Moreover, we will give an outlook on novel biomedical imaging tools that may provide interesting insights into mitochondrial disease pathophysiology.
Collapse
Affiliation(s)
- Felix Distelmaier
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, University Children's Hospital Düsseldorf, Medical Faculty, Heinrich Heine University, Düsseldorf, Germany.
| | - Thomas Klopstock
- Department of Neurology, Friedrich-Baur-Institute, University Hospital, Ludwig-Maximilians-Universität (LMU) München, Munich, Germany; German Center for Neurodegenerative Diseases (DZNE), Munich, Germany; Munich Cluster for Systems Neurology (SyNergy), Munich, Germany; German Network for mitochondrial disorders (mitoNET), Munich, Germany
| |
Collapse
|
6
|
Kim Y, Li C, Gu C, Tycksen E, Puri A, Pietka TA, Sivapackiam J, Fang Y, Kidd K, Park SJ, Johnson BG, Kmoch S, Duffield JS, Bleyer AJ, Jackrel ME, Urano F, Sharma V, Lindahl M, Chen YM. MANF stimulates autophagy and restores mitochondrial homeostasis to treat toxic proteinopathy. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.01.10.523171. [PMID: 36711449 PMCID: PMC9882049 DOI: 10.1101/2023.01.10.523171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Misfolded protein aggregates may cause toxic proteinopathy, including autosomal dominant tubulointerstitial kidney disease due to uromodulin mutations (ADTKD- UMOD ), one of the leading hereditary kidney diseases, and Alzheimer’s disease etc. There are no targeted therapies. ADTKD is also a genetic form of renal fibrosis and chronic kidney disease, which affects 500 million people worldwide. For the first time, in our newly generated mouse model recapitulating human ADTKD- UMOD carrying a leading UMOD deletion mutation, we show that autophagy/mitophagy and mitochondrial biogenesis are severely impaired, leading to cGAS- STING activation and tubular injury. Mesencephalic astrocyte-derived neurotrophic factor (MANF) is a novel endoplasmic reticulum stress-regulated secreted protein. We provide the first study that inducible tubular overexpression of MANF after the onset of disease stimulates autophagy/mitophagy and clearance of the misfolded UMOD, and promotes mitochondrial biogenesis through p-AMPK enhancement, resulting in protection of kidney function. Conversely, genetic ablation of endogenous MANF upregulated in the mutant mouse and human tubular cells worsens autophagy suppression and kidney fibrosis. Together, we discover MANF as a novel biotherapeutic protein and elucidate previously unknown mechanisms of MANF in regulating organelle homeostasis to treat ADTKD, which may have broad therapeutic application to treat various proteinopathies.
Collapse
|
7
|
Park SJ, Kim Y, Li C, Suh J, Sivapackiam J, Goncalves TM, Jarad G, Zhao G, Urano F, Sharma V, Chen YM. Blocking CHOP-dependent TXNIP shuttling to mitochondria attenuates albuminuria and mitigates kidney injury in nephrotic syndrome. Proc Natl Acad Sci U S A 2022; 119:e2116505119. [PMID: 35994650 PMCID: PMC9436335 DOI: 10.1073/pnas.2116505119] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Accepted: 07/15/2022] [Indexed: 11/18/2022] Open
Abstract
Albuminuria is a hallmark of glomerular disease of various etiologies. It is not only a symptom of glomerular disease but also a cause leading to glomerulosclerosis, interstitial fibrosis, and eventually, a decline in kidney function. The molecular mechanism underlying albuminuria-induced kidney injury remains poorly defined. In our genetic model of nephrotic syndrome (NS), we have identified CHOP (C/EBP homologous protein)-TXNIP (thioredoxin-interacting protein) as critical molecular linkers between albuminuria-induced ER dysfunction and mitochondria dyshomeostasis. TXNIP is a ubiquitously expressed redox protein that binds to and inhibits antioxidant enzyme, cytosolic thioredoxin 1 (Trx1), and mitochondrial Trx2. However, very little is known about the regulation and function of TXNIP in NS. By utilizing Chop-/- and Txnip-/- mice as well as 68Ga-Galuminox, our molecular imaging probe for detection of mitochondrial reactive oxygen species (ROS) in vivo, we demonstrate that CHOP up-regulation induced by albuminuria drives TXNIP shuttling from nucleus to mitochondria, where it is required for the induction of mitochondrial ROS. The increased ROS accumulation in mitochondria oxidizes Trx2, thus liberating TXNIP to associate with mitochondrial nod-like receptor protein 3 (NLRP3) to activate inflammasome, as well as releasing mitochondrial apoptosis signal-regulating kinase 1 (ASK1) to induce mitochondria-dependent apoptosis. Importantly, inhibition of TXNIP translocation and mitochondrial ROS overproduction by CHOP deletion suppresses NLRP3 inflammasome activation and p-ASK1-dependent mitochondria apoptosis in NS. Thus, targeting TXNIP represents a promising therapeutic strategy for the treatment of NS.
Collapse
Affiliation(s)
- Sun-Ji Park
- Division of Nephrology, Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110
| | - Yeawon Kim
- Division of Nephrology, Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110
| | - Chuang Li
- Division of Nephrology, Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110
| | - Junwoo Suh
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH 44106
| | - Jothilingam Sivapackiam
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, MO 63110
| | - Tassia M. Goncalves
- Department of Neuroscience, Washington University School of Medicine, St. Louis, MO 63110
| | - George Jarad
- Division of Nephrology, Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110
| | - Guoyan Zhao
- Department of Neuroscience, Washington University School of Medicine, St. Louis, MO 63110
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110
| | - Fumihiko Urano
- Division of Endocrinology, Metabolism, and Lipid Research, Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110
| | - Vijay Sharma
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, MO 63110
- Department of Neurology, Washington University School of Medicine, St. Louis, MO 63110
- Department of Biomedical Engineering, School of Engineering & Applied Science, Washington University, St. Louis, MO 63105
| | - Ying Maggie Chen
- Division of Nephrology, Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110
- Department of Cell Biology & Physiology, Washington University School of Medicine, St. Louis, MO 63110
| |
Collapse
|
8
|
Noninvasive Diagnosis of the Mitochondrial Function of Doxorubicin-Induced Cardiomyopathy Using In Vivo Dynamic Nuclear Polarization-Magnetic Resonance Imaging. Antioxidants (Basel) 2022; 11:antiox11081454. [PMID: 35892655 PMCID: PMC9331045 DOI: 10.3390/antiox11081454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Revised: 07/18/2022] [Accepted: 07/25/2022] [Indexed: 02/01/2023] Open
Abstract
Doxorubicin (DOX) induces dose-dependent cardiotoxicity via oxidative stress and abnormal mitochondrial function in the myocardium. Therefore, a noninvasive in vivo imaging procedure for monitoring the redox status of the heart may aid in monitoring diseases and developing treatments. However, an appropriate technique has yet to be developed. In this study, we demonstrate a technique for detecting and visualizing the redox status of the heart using in vivo dynamic nuclear polarization–magnetic resonance imaging (DNP–MRI) with 3-carbamoyl-PROXYL (CmP) as a molecular imaging probe. Male C57BL/6N mice were administered DOX (20 mg/kg) or saline. DNP–MRI clearly showed a slower DNP signal reduction in the DOX group than in the control group. Importantly, the difference in the DNP signal reduction rate between the two groups occurred earlier than that detected by physiological examination or clinical symptoms. In an in vitro experiment, KCN (an inhibitor of complex IV in the mitochondrial electron transport chain) and DOX inhibited the electron paramagnetic resonance change in H9c2 cardiomyocytes, suggesting that the redox metabolism of CmP in the myocardium is mitochondrion-dependent. Therefore, this molecular imaging technique has the potential to monitor the dynamics of redox metabolic changes in DOX-induced cardiomyopathy and facilitate an early diagnosis of this condition.
Collapse
|
9
|
Huang L, Li Z, Zhang X. Radiotracers for Nuclear Imaging of Reactive Oxygen Species: Advances Made So Far. Bioconjug Chem 2022; 33:749-766. [PMID: 35467335 DOI: 10.1021/acs.bioconjchem.2c00050] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Reactive oxygen species (ROS) are a cluster of highly reactive and short-lived oxygen-containing molecules that lead to metabolic disorders where production exceeds catabolism in an organism. Many specific radiotracers for positron/single-photon emission tomography have been developed to reveal the discrepancy of ROS levels in normal and damaged tissues and further clarify the relationship between ROS and diseases. This review summarizes the advances achieved for the development of ROS radiotracers to date. The structure design, radiosynthesis, and imaging performance of existing radiotracers are discussed with the individual ROS-response mechanisms highlighted.
Collapse
Affiliation(s)
- Lumei Huang
- Center for Molecular Imaging and Translational Medicine, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiang'An South Rd., Xiang'An district, Xiamen 361102, Fujian, China
| | - Zijing Li
- Center for Molecular Imaging and Translational Medicine, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiang'An South Rd., Xiang'An district, Xiamen 361102, Fujian, China
| | - Xianzhong Zhang
- Center for Molecular Imaging and Translational Medicine, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiang'An South Rd., Xiang'An district, Xiamen 361102, Fujian, China
| |
Collapse
|
10
|
Yamasaki T, Sano K, Mukai T. Redox Monitoring in Nuclear Medical Imaging. Antioxid Redox Signal 2022; 36:797-810. [PMID: 34847731 DOI: 10.1089/ars.2021.0246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Significance: The imbalance in redox homeostasis is known as oxidative stress, which is relevant to many diseases such as cancer, arteriosclerosis, and neurodegenerative disorders. Overproduction of reactive oxygen species (ROS) is one of the factors that trigger the redox state imbalance in vivo. The ROS have high reactivity and impair biomolecules, whereas antioxidants and antioxidant enzymes, such as ascorbate and glutathione, reduce the overproduction of ROS to rectify the redox imbalance. Owing to this, redox monitoring tools have been developed to understand the redox fluctuations in oxidative stress-related diseases. Recent Advances: In an attempt to monitor redox substances, including ROS and radical species, versatile modalities have been developed, such as electron spin resonance, chemiluminescence, and fluorescence. In particular, many fluorescent probes have been developed that are selective for ROS. This has significantly contributed to understanding the relevance of ROS in disease onset and progression. Critical Issues: To date, the dynamics of ROS and radical fluctuation in in vivo redox states remain unclear, and there are a few methods for the in vivo detection of redox fluctuations. Future Directions: In this review, we summarize the development of radiolabeled probes for monitoring redox-relevant species by nuclear medical imaging that is applicable in vivo. In the future, translational research is likely to be advanced through the development of highly sensitive and in vivo applicable detection methods, such as nuclear medical imaging, to clarify the underlying dynamics of ROS, radicals, and redox substances in many diseases. Antioxid. Redox Signal. 36, 797-810.
Collapse
Affiliation(s)
- Toshihide Yamasaki
- Laboratory of Biophysical Chemistry, Kobe Pharmaceutical University, Kobe, Japan
| | - Kohei Sano
- Laboratory of Biophysical Chemistry, Kobe Pharmaceutical University, Kobe, Japan
| | - Takahiro Mukai
- Laboratory of Biophysical Chemistry, Kobe Pharmaceutical University, Kobe, Japan
| |
Collapse
|
11
|
Imaging of innate immunity activation in vivo with a redox-tuned PET reporter. Nat Biotechnol 2022; 40:965-973. [DOI: 10.1038/s41587-021-01169-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Accepted: 11/19/2021] [Indexed: 12/26/2022]
|
12
|
Rodríguez-Muñiz GM, Mikroulis T, Pantelia A, Rotas G, Cuquerella MC, Vougioukalakis GC, Miranda MA. Modulation by Phosphonium Ions of the Activity of Mitotropic Agents Based on the Chemiluminescence of Luminols. Molecules 2022; 27:molecules27041245. [PMID: 35209033 PMCID: PMC8877776 DOI: 10.3390/molecules27041245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 02/08/2022] [Accepted: 02/10/2022] [Indexed: 02/04/2023] Open
Abstract
Mitochondria-targeting drugs and diagnostics are used in the monitoring and treatment of mitochondrial pathologies. In this respect, a great number of functional compounds have been made mitotropic by covalently attaching the active moiety onto a triphenylphosphonium (TPP) cation. Among these compounds, a number of molecular detectors for reactive oxygen species (ROS) are based on fluorescent and chemiluminescent probes. In this regard, luminol (probably the most widely known chemiluminescent molecule) has been employed for a number of biological applications, including ROS detection. Its oxidation under specific conditions triggers a cascade of reactions, ultimately leading to the excited 3-aminophthalate (3AP *), which emits light upon deactivation. Hence, the photophysical interaction between the light-emitting species 3AP * and TPP cations needs to be evaluated, as it can add valuable information on the design of novel emission-based mitotropic systems. We herein investigate the quenching effect of ethyltriphenylphosphonium cation onto substituted 3-aminophthalates. These were prepared in situ upon hydrolysis of the corresponding anhydrides, which were synthesized from 3-aminophthalimides. Steady-state fluorescence and time-resolved experiments were employed for the evaluation of a possible electron transfer quenching by phosphonium ions. Our experimental results confirmed such quenching, suggesting it is mainly dynamic in nature. A minor contribution of static quenching that was also detected is attributed to complex formation in the ground state. Accordingly, the chemiluminescence of luminol was indeed strongly reduced in the presence of phosphonium ions. Our results have to be taken into account during the design of new chemiluminescent mitotropic drugs or diagnostic agents of the luminol family.
Collapse
Affiliation(s)
- Gemma M. Rodríguez-Muñiz
- Instituto de Tecnología Química UPV-CSIC, Universitat Politècnica de València, Camino de Vera s/n, 46022 València, Spain; (G.M.R.-M.); (M.-C.C.)
| | - Theodoros Mikroulis
- Laboratory of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis, 15771 Athens, Greece; (T.M.); (A.P.); (G.R.)
| | - Anna Pantelia
- Laboratory of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis, 15771 Athens, Greece; (T.M.); (A.P.); (G.R.)
| | - Georgios Rotas
- Laboratory of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis, 15771 Athens, Greece; (T.M.); (A.P.); (G.R.)
| | - Maria-Consuelo Cuquerella
- Instituto de Tecnología Química UPV-CSIC, Universitat Politècnica de València, Camino de Vera s/n, 46022 València, Spain; (G.M.R.-M.); (M.-C.C.)
| | - Georgios C. Vougioukalakis
- Laboratory of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis, 15771 Athens, Greece; (T.M.); (A.P.); (G.R.)
- Correspondence: (G.C.V.); (M.A.M.); Tel.: +30-210-727-4230 (G.C.V.); +34-963877-807 (M.A.M.); Fax: +30-210-727-4761 (G.C.V.); +34-963-879-444 (M.A.M.)
| | - Miguel A. Miranda
- Instituto de Tecnología Química UPV-CSIC, Universitat Politècnica de València, Camino de Vera s/n, 46022 València, Spain; (G.M.R.-M.); (M.-C.C.)
- Correspondence: (G.C.V.); (M.A.M.); Tel.: +30-210-727-4230 (G.C.V.); +34-963877-807 (M.A.M.); Fax: +30-210-727-4761 (G.C.V.); +34-963-879-444 (M.A.M.)
| |
Collapse
|
13
|
Greenwood HE, Witney TH. Latest Advances in Imaging Oxidative Stress in Cancer. J Nucl Med 2021; 62:1506-1510. [PMID: 34353871 PMCID: PMC7611938 DOI: 10.2967/jnumed.120.256974] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Accepted: 07/15/2021] [Indexed: 11/16/2022] Open
Abstract
Oxidative stress is the imbalance of harmful reactive oxygen species (ROS) and the action of neutralizing antioxidant mechanisms. If left unchecked, the deleterious effects of oxidative stress result in damage to DNA, proteins, and membranes, ultimately leading to cell death. Tumors are highly proliferative and consequently generate high levels of mitochondrial ROS. To compensate for this and maintain redox homeostasis, cancer cells upregulate protective antioxidant pathways, which are further amplified in drug-resistant tumors. This review provides an overview of the latest molecular imaging techniques designed to image oxidative stress in cancer. New probes can now assess heterogeneous ROS and antioxidant production within tumors and across lesions. Together, the noninvasive imaging of these dynamic processes holds great promise for monitoring response to treatment and predicting drug resistance and may provide insight into the metastatic potential of tumors.
Collapse
Affiliation(s)
- Hannah E Greenwood
- School of Biomedical Engineering and Imaging Sciences, King's College London, London, United Kingdom
| | - Timothy H Witney
- School of Biomedical Engineering and Imaging Sciences, King's College London, London, United Kingdom
| |
Collapse
|
14
|
Fox GC, Su X, Davis JL, Xu Y, Kwakwa KA, Ross MH, Fontana F, Xiang J, Esser AK, Cordell E, Pagliai K, Dang HX, Sivapackiam J, Stewart SA, Maher CA, Bakewell SJ, Fitzpatrick JAJ, Sharma V, Achilefu S, Veis DJ, Lanza GM, Weilbaecher KN. Targeted Therapy to β3 Integrin Reduces Chemoresistance in Breast Cancer Bone Metastases. Mol Cancer Ther 2021; 20:1183-1198. [PMID: 33785647 DOI: 10.1158/1535-7163.mct-20-0931] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 02/04/2021] [Accepted: 03/11/2021] [Indexed: 11/16/2022]
Abstract
Breast cancer bone metastases are common and incurable. Tumoral integrin β3 (β3) expression is induced through interaction with the bone microenvironment. Although β3 is known to promote bone colonization, its functional role during therapy of established bone metastases is not known. We found increased numbers of β3+ tumor cells in murine bone metastases after docetaxel chemotherapy. β3+ tumor cells were present in 97% of post-neoadjuvant chemotherapy triple-negative breast cancer patient samples (n = 38). High tumoral β3 expression was associated with worse outcomes in both pre- and postchemotherapy triple-negative breast cancer groups. Genetic deletion of tumoral β3 had minimal effect in vitro, but significantly enhanced in vivo docetaxel activity, particularly in the bone. Rescue experiments confirmed that this effect required intact β3 signaling. Ultrastructural, transcriptomic, and functional analyses revealed an alternative metabolic response to chemotherapy in β3-expressing cells characterized by enhanced oxygen consumption, reactive oxygen species generation, and protein production. We identified mTORC1 as a candidate for therapeutic targeting of this β3-mediated, chemotherapy-induced metabolic response. mTORC1 inhibition in combination with docetaxel synergistically attenuated murine bone metastases. Furthermore, micelle nanoparticle delivery of mTORC1 inhibitor to cells expressing activated αvβ3 integrins enhanced docetaxel efficacy in bone metastases. Taken together, we show that β3 integrin induction by the bone microenvironment promotes resistance to chemotherapy through an altered metabolic response that can be defused by combination with αvβ3-targeted mTORC1 inhibitor nanotherapy. Our work demonstrates the importance of the metastatic microenvironment when designing treatments and presents new, bone-specific strategies for enhancing chemotherapeutic efficacy.
Collapse
Affiliation(s)
- Gregory C Fox
- Department of Medicine, Division of Molecular Oncology, Washington University School of Medicine, St. Louis, Missouri
| | - Xinming Su
- Department of Medicine, Division of Molecular Oncology, Washington University School of Medicine, St. Louis, Missouri
| | - Jennifer L Davis
- Department of Medicine, Division of Molecular Oncology, Washington University School of Medicine, St. Louis, Missouri
| | - Yalin Xu
- Department of Medicine, Division of Molecular Oncology, Washington University School of Medicine, St. Louis, Missouri
| | - Kristin A Kwakwa
- Department of Medicine, Division of Molecular Oncology, Washington University School of Medicine, St. Louis, Missouri
| | - Michael H Ross
- Department of Medicine, Division of Molecular Oncology, Washington University School of Medicine, St. Louis, Missouri
| | - Francesca Fontana
- Department of Medicine, Division of Molecular Oncology, Washington University School of Medicine, St. Louis, Missouri.,Department of Medicine, Division of Cardiology, Washington University School of Medicine, St. Louis, Missouri
| | - Jingyu Xiang
- Department of Medicine, Division of Molecular Oncology, Washington University School of Medicine, St. Louis, Missouri
| | - Alison K Esser
- Department of Medicine, Division of Molecular Oncology, Washington University School of Medicine, St. Louis, Missouri
| | - Elizabeth Cordell
- Department of Medicine, Division of Molecular Oncology, Washington University School of Medicine, St. Louis, Missouri
| | - Kristen Pagliai
- Department of Medicine, Division of Molecular Oncology, Washington University School of Medicine, St. Louis, Missouri
| | - Ha X Dang
- Department of Medicine, Division of Molecular Oncology, Washington University School of Medicine, St. Louis, Missouri.,Siteman Cancer Center, Washington University School of Medicine, St. Louis, Missouri.,McDonnell Genome Institute, Washington University School of Medicine, St. Louis, Missouri
| | - Jothilingam Sivapackiam
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, Missouri.,ICCE Institute, Washington University School of Medicine, St. Louis, Missouri
| | - Sheila A Stewart
- Siteman Cancer Center, Washington University School of Medicine, St. Louis, Missouri.,ICCE Institute, Washington University School of Medicine, St. Louis, Missouri.,Department of Medicine, Washington University School of Medicine, St. Louis, Missouri.,Department of Cell Biology and Physiology, Washington University School of Medicine, St. Louis, Missouri
| | - Christopher A Maher
- Department of Medicine, Division of Molecular Oncology, Washington University School of Medicine, St. Louis, Missouri.,Siteman Cancer Center, Washington University School of Medicine, St. Louis, Missouri.,McDonnell Genome Institute, Washington University School of Medicine, St. Louis, Missouri.,Department of Biomedical Engineering, Washington University School of Medicine, St. Louis, Missouri
| | - Suzanne J Bakewell
- Department of Medicine, Division of Molecular Oncology, Washington University School of Medicine, St. Louis, Missouri
| | - James A J Fitzpatrick
- Department of Cell Biology and Physiology, Washington University School of Medicine, St. Louis, Missouri.,Department of Biomedical Engineering, Washington University School of Medicine, St. Louis, Missouri.,Department of Neuroscience, Washington University School of Medicine, St. Louis, Missouri
| | - Vijay Sharma
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, Missouri.,ICCE Institute, Washington University School of Medicine, St. Louis, Missouri.,Department of Biomedical Engineering, Washington University School of Medicine, St. Louis, Missouri.,Deparment of Neurology, Washington University School of Medicine, St. Louis, Missouri
| | - Samuel Achilefu
- Siteman Cancer Center, Washington University School of Medicine, St. Louis, Missouri.,Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, Missouri.,Department of Medicine, Washington University School of Medicine, St. Louis, Missouri
| | - Deborah J Veis
- Department of Medicine, Washington University School of Medicine, St. Louis, Missouri.,Musculoskeletal Research Center, Histology and Morphometry Core, Washington University School of Medicine, St. Louis, Missouri.,Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, Missouri
| | - Gregory M Lanza
- Department of Medicine, Division of Cardiology, Washington University School of Medicine, St. Louis, Missouri
| | - Katherine N Weilbaecher
- Department of Medicine, Division of Molecular Oncology, Washington University School of Medicine, St. Louis, Missouri. .,Siteman Cancer Center, Washington University School of Medicine, St. Louis, Missouri.,Department of Cell Biology and Physiology, Washington University School of Medicine, St. Louis, Missouri.,Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, Missouri
| |
Collapse
|
15
|
Gropler RJ. Imaging Myocardial Metabolism. Mol Imaging 2021. [DOI: 10.1016/b978-0-12-816386-3.00083-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|