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Sguizzato M, Martini P, Ferrara F, Marvelli L, Drechsler M, Reale G, Calderoni F, Illuminati F, Porto F, Speltri G, Uccelli L, Giganti M, Boschi A, Cortesi R. Manganese-Loaded Liposomes: An In Vitro Study for Possible Diagnostic Application. Molecules 2024; 29:3407. [PMID: 39064985 PMCID: PMC11280348 DOI: 10.3390/molecules29143407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2024] [Revised: 06/27/2024] [Accepted: 07/17/2024] [Indexed: 07/28/2024] Open
Abstract
The present study investigates the possible use of manganese (Mn)-based liposomal formulations for diagnostic applications in imaging techniques such as magnetic resonance imaging (MRI), with the aim of overcoming the toxicity limitations associated with the use of free Mn2+. Specifically, anionic liposomes carrying two model Mn(II)-based compounds, MnCl2 (MC) and Mn(HMTA) (MH), were prepared and characterised in terms of morphology, size, loading capacity, and in vitro activity. Homogeneous dispersions characterised mainly by unilamellar vesicles were obtained; furthermore, no differences in size and morphology were detected between unloaded and Mn-loaded vesicles. The encapsulation efficiency of MC and MH was evaluated on extruded liposomes by means of ICP-OES analysis. The obtained results showed that both MC and MH are almost completely retained by the lipid portion of liposomes (LPs), with encapsulation efficiencies of 99.7% for MC and 98.8% for MH. The magnetic imaging properties of the produced liposomal formulations were investigated for application in a potential preclinical scenario by collecting magnetic resonance images of a phantom designed to compare the paramagnetic contrast properties of free MC and MH compounds and the corresponding manganese-containing liposome dispersions. It was found that both LP-MC and LP-MH at low concentrations (0.5 mM) show better contrast (contrast-to-noise ratios of 194 and 209, respectively) than solutions containing free Mn at the same concentrations (117 and 134, respectively) and are safe to use on human cells at the selected dose. Taken together, the results of this comparative analysis suggest that these liposome-containing Mn compounds might be suitable for diagnostic purposes.
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Affiliation(s)
- Maddalena Sguizzato
- Department of Chemical, Pharmaceutical and Agricultural Sciences (DoCPAS), University of Ferrara, 44121 Ferrara, Italy; (M.S.); (F.F.); (L.M.); (G.S.); (R.C.)
- Biotechnology Inter University Consortium (C.I.B.), Ferrara Section, University of Ferrara, 44121 Ferrara, Italy
| | - Petra Martini
- Department of Environmental and Prevention Sciences, University of Ferrara, 44121 Ferrara, Italy;
| | - Francesca Ferrara
- Department of Chemical, Pharmaceutical and Agricultural Sciences (DoCPAS), University of Ferrara, 44121 Ferrara, Italy; (M.S.); (F.F.); (L.M.); (G.S.); (R.C.)
| | - Lorenza Marvelli
- Department of Chemical, Pharmaceutical and Agricultural Sciences (DoCPAS), University of Ferrara, 44121 Ferrara, Italy; (M.S.); (F.F.); (L.M.); (G.S.); (R.C.)
| | - Markus Drechsler
- Bavarian Polymer Institute Keylab “Electron and Optical Microscopy”, University of Bayreuth, 95447 Bayreuth, Germany;
| | - Giovanni Reale
- Department of Translational Medicine, University of Ferrara, 44121 Ferrara, Italy; (G.R.); (F.P.); (L.U.); (M.G.)
| | | | | | - Francesca Porto
- Department of Translational Medicine, University of Ferrara, 44121 Ferrara, Italy; (G.R.); (F.P.); (L.U.); (M.G.)
| | - Giorgia Speltri
- Department of Chemical, Pharmaceutical and Agricultural Sciences (DoCPAS), University of Ferrara, 44121 Ferrara, Italy; (M.S.); (F.F.); (L.M.); (G.S.); (R.C.)
| | - Licia Uccelli
- Department of Translational Medicine, University of Ferrara, 44121 Ferrara, Italy; (G.R.); (F.P.); (L.U.); (M.G.)
| | - Melchiore Giganti
- Department of Translational Medicine, University of Ferrara, 44121 Ferrara, Italy; (G.R.); (F.P.); (L.U.); (M.G.)
| | - Alessandra Boschi
- Department of Chemical, Pharmaceutical and Agricultural Sciences (DoCPAS), University of Ferrara, 44121 Ferrara, Italy; (M.S.); (F.F.); (L.M.); (G.S.); (R.C.)
| | - Rita Cortesi
- Department of Chemical, Pharmaceutical and Agricultural Sciences (DoCPAS), University of Ferrara, 44121 Ferrara, Italy; (M.S.); (F.F.); (L.M.); (G.S.); (R.C.)
- Biotechnology Inter University Consortium (C.I.B.), Ferrara Section, University of Ferrara, 44121 Ferrara, Italy
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Dattani A, Joshi S, Yeo JL, Singh A, Brady EM, Parke KS, Arnold JR, Singh T, Kershaw LE, Spath NB, Reynolds RM, Forbes S, Gibb FW, Semple SI, Dweck MR, Newby DE, McCann GP, Gulsin GS. Impaired Myocardial Calcium Uptake in Patients With Diabetes Mellitus: A Manganese-Enhanced Cardiac Magnetic Resonance Study. JACC Cardiovasc Imaging 2023; 16:1623-1625. [PMID: 37389510 DOI: 10.1016/j.jcmg.2023.05.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 04/07/2023] [Accepted: 05/10/2023] [Indexed: 07/01/2023]
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Starekova J, Pirasteh A, Reeder SB. Update on Gadolinium Based Contrast Agent Safety, From the AJR Special Series on Contrast Media. AJR Am J Roentgenol 2023. [PMID: 37850581 DOI: 10.2214/ajr.23.30036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2023]
Abstract
Since its introduction 35 years ago, gadolinium-enhanced MRI has fundamentally changed medical practice. While extraordinarily safe, gadolinium-based contrast agents (GBCAs) may have side effects. Four distinct safety considerations include: acute allergic-like reactions, nephrogenic systemic fibrosis (NSF), gadolinium deposition, and symptoms associated with gadolinium exposure. Acute reactions after GBCA administration are uncommon-far less than with iodinated contrast agents-and, while rare, serious reactions can occur. NSF is a rare, but serious, scleroderma-like condition occurring in patients with kidney failure after exposure to American College of Radiology (ACR) Group 1 GBCAs. Group 2 and 3 GBCAs are considered lower risk, and, through their use, NSF has largely been eliminated. Unrelated to NSF, retention of trace amounts of gadolinium in the brain and other organs has been recognized for over a decade. Deposition occurs with all agents, although linear agents appear to deposit more than macrocyclic agents. Importantly, to date, no data demonstrate any adverse biologic or clinical effects from gadolinium deposition, even with normal kidney function. This article summarizes the latest safety evidence of commercially available GBCAs with a focus on new agents, discusses updates to the ACR NSF GBCA safety classification, and describes approaches for strengthening the evidence needed for regulatory decisions.
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Affiliation(s)
- Jitka Starekova
- Department of Radiology, University of Wisconsin, Madison, WI, USA
| | - Ali Pirasteh
- Department of Radiology, University of Wisconsin, Madison, WI, USA
- Department of Medical Physics, University of Wisconsin, Madison, WI, USA
| | - Scott B Reeder
- Department of Radiology, University of Wisconsin, Madison, WI, USA
- Department of Biomedical Engineering, University of Wisconsin, Madison, WI, USA
- Department of Medical Physics, University of Wisconsin, Madison, WI, USA
- Department of Medicine, University of Wisconsin, Madison, WI, USA
- Department of Emergency Medicine, University of Wisconsin, Madison, WI, USA
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4
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Singh T, Joshi S, Kershaw LE, Dweck MR, Semple SI, Newby DE. Manganese-Enhanced Magnetic Resonance Imaging of the Heart. J Magn Reson Imaging 2023; 57:1011-1028. [PMID: 36314991 PMCID: PMC10947173 DOI: 10.1002/jmri.28499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 10/07/2022] [Accepted: 10/11/2022] [Indexed: 02/23/2023] Open
Abstract
Manganese-based contrast media were the first in vivo paramagnetic agents to be used in magnetic resonance imaging (MRI). The uniqueness of manganese lies in its biological function as a calcium channel analog, thus behaving as an intracellular contrast agent. Manganese ions are taken up by voltage-gated calcium channels in viable tissues, such as the liver, pancreas, kidneys, and heart, in response to active calcium-dependent cellular processes. Manganese-enhanced magnetic resonance imaging (MEMRI) has therefore been used as a surrogate marker for cellular calcium handling and interest in its potential clinical applications has recently re-emerged, especially in relation to assessing cellular viability and myocardial function. Calcium homeostasis is central to myocardial contraction and dysfunction of myocardial calcium handling is present in various cardiac pathologies. Recent studies have demonstrated that MEMRI can detect the presence of abnormal myocardial calcium handling in patients with myocardial infarction, providing clear demarcation between the infarcted and viable myocardium. Furthermore, it can provide more subtle assessments of abnormal myocardial calcium handling in patients with cardiomyopathies and being excluded from areas of nonviable cardiomyocytes and severe fibrosis. As such, MEMRI offers exciting potential to improve cardiac diagnoses and provide a noninvasive measure of myocardial function and contractility. This could be an invaluable tool for the assessment of both ischemic and nonischemic cardiomyopathies as well as providing a measure of functional myocardial recovery, an accurate prediction of disease progression and a method of monitoring treatment response. EVIDENCE LEVEL: 5: TECHNICAL EFFICACY: STAGE 5.
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Affiliation(s)
- Trisha Singh
- BHF/University Centre for Cardiovascular ScienceUniversity of EdinburghUK
- Edinburgh Heart CentreRoyal Infirmary of EdinburghUK
- Edinburgh ImagingUniversity of EdinburghUK
| | - Shruti Joshi
- BHF/University Centre for Cardiovascular ScienceUniversity of EdinburghUK
- Edinburgh Heart CentreRoyal Infirmary of EdinburghUK
- Edinburgh ImagingUniversity of EdinburghUK
| | - Lucy E Kershaw
- BHF/University Centre for Cardiovascular ScienceUniversity of EdinburghUK
- Edinburgh ImagingUniversity of EdinburghUK
| | - Marc R Dweck
- BHF/University Centre for Cardiovascular ScienceUniversity of EdinburghUK
- Edinburgh Heart CentreRoyal Infirmary of EdinburghUK
- Edinburgh ImagingUniversity of EdinburghUK
| | - Scott I Semple
- BHF/University Centre for Cardiovascular ScienceUniversity of EdinburghUK
- Edinburgh ImagingUniversity of EdinburghUK
| | - David E Newby
- BHF/University Centre for Cardiovascular ScienceUniversity of EdinburghUK
- Edinburgh Heart CentreRoyal Infirmary of EdinburghUK
- Edinburgh ImagingUniversity of EdinburghUK
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Sharma VK, Assaraf YG, Gross Z. Hallmarks of anticancer and antimicrobial activities of corroles. Drug Resist Updat 2023; 67:100931. [PMID: 36739808 DOI: 10.1016/j.drup.2023.100931] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Revised: 01/06/2023] [Accepted: 01/16/2023] [Indexed: 01/22/2023]
Abstract
Corroles provide a remarkable opportunity for the development of cancer theranostic agents among other porphyrinoids. While most transition metal corrole complexes are only therapeutic, post-transition metallocorroles also find their applications in bioimaging. Moreover, corroles exhibit excellent photo-physicochemical properties, which can be harnessed for antitumor and antimicrobial interventions. Nevertheless, these intriguing, yet distinct properties of corroles, have not attained sufficient momentum in cancer research. The current review provides a comprehensive summary of various cancer-relevant features of corroles ranging from their structural and photophysical properties, chelation, protein/corrole interactions, to DNA intercalation. Another aspect of the paper deals with the studies of corroles conducted in vitro and in vivo with an emphasis on medical imaging (optical and magnetic resonance), photo/sonodynamic therapies, and photodynamic inactivation. Special attention is also given to a most recent finding that shows the development of pH-responsive phosphorus corrole as a potent antitumor drug for organelle selective antitumor cytotoxicity in preclinical studies. Another biomedical application of corroles is also highlighted, signifying the application of water-soluble and completely lipophilic corroles in the photodynamic inactivation of microorganisms. We strongly believe that future studies will offer a greater possibility of utilizing advanced corroles for selective tumor targeting and antitumor cytotoxicity. In the line with future developments, an ideal pipeline is envisioned on grounds of cancer targeting nanoparticle systems upon decoration with tumor-specific ligands. Hence, we envision that a bright future lies ahead of corrole anticancer research and therapeutics.
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Affiliation(s)
- Vinay K Sharma
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology, Haifa 3200003, Israel.
| | - Yehuda G Assaraf
- The Fred Wyszkowski Cancer Research Laboratory, Department of Biology, Technion-Israel Institute of Technology, Haifa 3200003, Israel.
| | - Zeev Gross
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology, Haifa 3200003, Israel.
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Repeatability and reproducibility of cardiac manganese-enhanced magnetic resonance imaging. Sci Rep 2023; 13:3366. [PMID: 36849509 PMCID: PMC9971197 DOI: 10.1038/s41598-023-29591-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Accepted: 02/07/2023] [Indexed: 03/01/2023] Open
Abstract
Manganese-enhanced magnetic resonance imaging can provide a surrogate measure of myocardial calcium handling. Its repeatability and reproducibility are currently unknown. Sixty-eight participants: 20 healthy volunteers, 20 with acute myocardial infarction, 18 with hypertrophic and 10 with non-ischemic dilated cardiomyopathy underwent manganese-enhanced magnetic resonance imaging. Ten healthy volunteers were re-scanned at 3 months. Native T1 values and myocardial manganese uptake were assessed for intra and inter-observer repeatability. Scan-rescan reproducibility was assessed in ten healthy volunteers. Intra-observer and inter-observer correlation was excellent in healthy volunteers for mean native T1 mapping [Lin's correlation coefficient (LCC) 0.97 and 0.97 respectively] and myocardial manganese uptake (LCC: 0.99 and 0.96 respectively). Scan-rescan correlation for native T1 and myocardial manganese uptake was also excellent. Similarly, intra-observer correlations for native T1 and myocardial manganese uptake in patients with acute myocardial infarction (LCC: 0.97 and 0.97 respectively), hypertrophic (LCC: 0.98 and 0.97 respectively) and dilated cardiomyopathy (LCC: 0.99 and 0.95 respectively) were excellent. Limits of agreement were broader in patients with dilated cardiomyopathy. Manganese-enhanced magnetic resonance imaging has high repeatability and reproducibility in healthy myocardium and high repeatability in diseased myocardium. However, further study is needed to establish robustness in pathologies with diffuse myocardial fibrosis.
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Ding Z, Tan K, Alter C, Temme S, Bouvain P, Owenier C, Hänsch S, Wesselborg S, Peter C, Weidtkamp-Peters S, Flögel U, Schira-Heinen J, Stühler K, Hesse J, Kögler G, Schrader J. Cardiac injection of USSC boosts remuscularization of the infarcted heart by shaping the T-cell response. J Mol Cell Cardiol 2023; 175:29-43. [PMID: 36493853 DOI: 10.1016/j.yjmcc.2022.11.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 10/20/2022] [Accepted: 11/18/2022] [Indexed: 12/12/2022]
Abstract
Regenerating the injured heart remains one of the most vexing challenges in cardiovascular medicine. Cell therapy has shown potential for treatment of myocardial infarction, but low cell retention so far has limited its success. Here we show that intramyocardial injection of highly apoptosis-resistant unrestricted somatic stem cells (USSC) into infarcted rat hearts resulted in an unprecedented thickening of the left ventricular wall with cTnT+/BrdU+ cardiomyocytes that was paralleled by progressively restored ejection fraction. USSC induced significant T-cell enrichment in ischemic tissue with enhanced expression of T-cell related cytokines. Inhibition of T-cell activation by anti-CD28 monoclonal antibody, fully abolished the regenerative response which was restored by adoptive T-cell transfer. Secretome analysis of USSC and lineage tracing studies suggest that USSC secrete paracrine factors over an extended period of time which boosts a T-cell driven endogenous regenerative response mainly from adult cardiomyocytes.
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Affiliation(s)
- Zhaoping Ding
- Department of Molecular Cardiology, Heinrich Heine University of Duesseldorf, Duesseldorf, Germany
| | - Kezhe Tan
- Department of Anesthesiology, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Christina Alter
- Department of Molecular Cardiology, Heinrich Heine University of Duesseldorf, Duesseldorf, Germany
| | - Sebastian Temme
- Department of Molecular Cardiology, Heinrich Heine University of Duesseldorf, Duesseldorf, Germany
| | - Pascal Bouvain
- Department of Molecular Cardiology, Heinrich Heine University of Duesseldorf, Duesseldorf, Germany
| | - Christoph Owenier
- Department of Molecular Cardiology, Heinrich Heine University of Duesseldorf, Duesseldorf, Germany
| | - Sebastian Hänsch
- Center for Advanced Imaging, Heinrich-Heine University Duesseldorf, Duesseldorf, Germany
| | - Sebastian Wesselborg
- Institute of Molecular Medicine I, Heinrich Heine University of Duesseldorf, Duesseldorf, Germany
| | - Christoph Peter
- Institute of Molecular Medicine I, Heinrich Heine University of Duesseldorf, Duesseldorf, Germany
| | | | - Ulrich Flögel
- Department of Molecular Cardiology, Heinrich Heine University of Duesseldorf, Duesseldorf, Germany
| | - Jessica Schira-Heinen
- Molecular Proteomics Laboratory (MPL), Heinrich Heine University of Duesseldorf, Duesseldorf, Germany
| | - Kai Stühler
- Molecular Proteomics Laboratory (MPL), Heinrich Heine University of Duesseldorf, Duesseldorf, Germany
| | - Julia Hesse
- Department of Molecular Cardiology, Heinrich Heine University of Duesseldorf, Duesseldorf, Germany
| | - Gesine Kögler
- Jose Carreras Stem Cell Bank, Heinrich Heine University of Duesseldorf, Duesseldorf, Germany
| | - Jürgen Schrader
- Department of Molecular Cardiology, Heinrich Heine University of Duesseldorf, Duesseldorf, Germany.
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Freidel L, Li S, Choffart A, Kuebler L, Martins AF. Imaging Techniques in Pharmacological Precision Medicine. Handb Exp Pharmacol 2023; 280:213-235. [PMID: 36907970 DOI: 10.1007/164_2023_641] [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] [Indexed: 03/14/2023]
Abstract
Biomedical imaging is a powerful tool for medical diagnostics and personalized medicines. Examples of commonly used imaging modalities include Positron Emission Tomography (PET), Ultrasound (US), Single Photon Emission Computed Tomography (SPECT), and hybrid imaging. By combining these modalities, scientists can gain a comprehensive view and better understand physiology and pathology at the preclinical, clinical, and multiscale levels. This can aid in the accuracy of medical diagnoses and treatment decisions. Moreover, biomedical imaging allows for evaluating the metabolic, functional, and structural details of living tissues. This can be particularly useful for the early diagnosis of diseases such as cancer and for the application of personalized medicines. In the case of hybrid imaging, two or more modalities are combined to produce a high-resolution image with enhanced sensitivity and specificity. This can significantly improve the accuracy of diagnosis and offer more detailed treatment plans. In this book chapter, we showcase how continued advancements in biomedical imaging technology can potentially revolutionize medical diagnostics and personalized medicine.
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Affiliation(s)
- Lucas Freidel
- Department of Preclinical Imaging and Radiopharmacy, Werner Siemens Imaging Center, University of Tübingen, Tübingen, Germany
- Cluster of Excellence iFIT (EXC 2180) "Image-Guided and Functionally Instructed Tumor Therapies," University of Tübingen, Tübingen, Germany
| | - Sixing Li
- Department of Preclinical Imaging and Radiopharmacy, Werner Siemens Imaging Center, University of Tübingen, Tübingen, Germany
- Cluster of Excellence iFIT (EXC 2180) "Image-Guided and Functionally Instructed Tumor Therapies," University of Tübingen, Tübingen, Germany
| | - Anais Choffart
- Department of Preclinical Imaging and Radiopharmacy, Werner Siemens Imaging Center, University of Tübingen, Tübingen, Germany
- Cluster of Excellence iFIT (EXC 2180) "Image-Guided and Functionally Instructed Tumor Therapies," University of Tübingen, Tübingen, Germany
| | - Laura Kuebler
- Department of Preclinical Imaging and Radiopharmacy, Werner Siemens Imaging Center, University of Tübingen, Tübingen, Germany
- Cluster of Excellence iFIT (EXC 2180) "Image-Guided and Functionally Instructed Tumor Therapies," University of Tübingen, Tübingen, Germany
- German Cancer Consortium (DKTK), Partner Site Tübingen, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - André F Martins
- Department of Preclinical Imaging and Radiopharmacy, Werner Siemens Imaging Center, University of Tübingen, Tübingen, Germany.
- Cluster of Excellence iFIT (EXC 2180) "Image-Guided and Functionally Instructed Tumor Therapies," University of Tübingen, Tübingen, Germany.
- German Cancer Consortium (DKTK), Partner Site Tübingen, German Cancer Research Center (DKFZ), Heidelberg, Germany.
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Li B, Han L, Wang H, Zheng Y. Albumin-templated manganese carbonate nanoparticles for precise magnetic resonance imaging of acute myocardial infarction. J Biomater Appl 2022; 37:493-501. [PMID: 35574609 DOI: 10.1177/08853282221102673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Myocardial infarction (MI) is a major cause of death worldwide. Early and precise diagnosis of myocardial viability after MI is extremely important for effective treatment and prognosis evaluation. Herein, we developed the BSA-templated manganese carbonate (MnCO3@BSA) nanoparticles as an MR imaging contrast agent for accurate detection of the infarcted regions. The chemophysical features, targeting capability toward the infarct, and biocompatibility were evaluated. The nanoparticles showed superior chemical stability. In vitro study suggested that the MnCO3@BSA nanoparticles do not enter normal cardiomyocytes. MR imaging indicated that the MnCO3@BSA with a high longitudinal (r1) relaxivity of 5.84 mM-1s-1 at physiological condition specifically accumulated into the infarcted regions of myocardial ischemia/reperfusion (I/R) mice. In addition, the MnCO3@BSA nanoparticles exhibited low cytotoxicity to cardiomyocytes, no damage to organs and good hemocompatibility. Thereby, the MnCO3@BSA nanoparticles manifested great potential as an extracellular contrast agent of MR imaging for sensitive and specific detection of the infarcted regions during acute myocardial I/R injury.
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Affiliation(s)
- Bing Li
- Department of Pharmacology, School of Pharmaceutical Sciences, 12517Capital Medical University, Beijing, China
| | - Luyi Han
- School of Basic Medical Sciences, 12517Capital Medical University, Beijing, China
| | - Hao Wang
- Department of Human Anatomy, School of Basic Medical Sciences, 12517Capital Medical University, Beijing, China
| | - Yuanyuan Zheng
- Department of Pharmacology, School of Pharmaceutical Sciences, 12517Capital Medical University, Beijing, China
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Zou Q, Bao J, Yan X. Functional Nanomaterials Based on Self-Assembly of Endogenic NIR-Absorbing Pigments for Diagnostic and Therapeutic Applications. SMALL METHODS 2022; 6:e2101359. [PMID: 35142112 DOI: 10.1002/smtd.202101359] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Revised: 01/05/2022] [Indexed: 06/14/2023]
Abstract
Endogenic pigments derived from hemoglobin have been successfully applied in the clinic for both imaging and therapy based on their inherent photophysical and photochemical properties, including light absorption, fluorescence emission, and producing reactive oxygen species. However, the clinically approved endogenic pigments can be excited only by UV/vis light, restricting the penetration depth of in vivo applications. Recently, endogenic pigments with NIR-absorbing properties have been explored for constructing functional nanomaterials. Here, the overview of NIR-absorbing endogenic pigments, mainly bile pigments, and melanins, as emerging building blocks for supramolecular construction of diagnostic and therapeutic nanomaterials is provided. The endogenic origins, synthetic pathways, and structural characteristics of the NIR-absorbing endogenic pigments are described. The self-assembling approaches and noncovalent interactions in fabricating the nanomaterials are emphasized. Since bile pigments and melanins are inherently photothermal agents, the resulting nanomaterials are demonstrated as promising candidates for photoacoustic imaging and photothermal therapy. Integration of additional diagnostic and therapeutic agents by the nanomaterials through chemical conjugation or physical encapsulation toward synergetic effects is also included. Especially, the degradation behaviors of the nanomaterials in biological environments are summarized. Along with the challenges, future perspectives are discussed for accelerating the ration design and clinical translation of NIR-absorbing nanomaterials.
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Affiliation(s)
- Qianli Zou
- School of Pharmacy, Anhui Medical University, Hefei, 230032, P. R. China
| | - Jianwei Bao
- School of Pharmacy, Anhui Medical University, Hefei, 230032, P. R. China
| | - Xuehai Yan
- School of Pharmacy, Anhui Medical University, Hefei, 230032, P. R. China
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China
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Tiwari A, Elgrably B, Saar G, Vandoorne K. Multi-Scale Imaging of Vascular Pathologies in Cardiovascular Disease. Front Med (Lausanne) 2022; 8:754369. [PMID: 35071257 PMCID: PMC8766766 DOI: 10.3389/fmed.2021.754369] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Accepted: 12/13/2021] [Indexed: 12/28/2022] Open
Abstract
Cardiovascular disease entails systemic changes in the vasculature. The endothelial cells lining the blood vessels are crucial in the pathogenesis of cardiovascular disease. Healthy endothelial cells direct the blood flow to tissues as vasodilators and act as the systemic interface between the blood and tissues, supplying nutrients for vital organs, and regulating the smooth traffic of leukocytes into tissues. In cardiovascular diseases, when inflammation is sensed, endothelial cells adjust to the local or systemic inflammatory state. As the inflamed vasculature adjusts, changes in the endothelial cells lead to endothelial dysfunction, altered blood flow and permeability, expression of adhesion molecules, vessel wall inflammation, thrombosis, angiogenic processes, and extracellular matrix production at the endothelial cell level. Preclinical multi-scale imaging of these endothelial changes using optical, acoustic, nuclear, MRI, and multimodal techniques has progressed, due to technical advances and enhanced biological understanding on the interaction between immune and endothelial cells. While this review highlights biological processes that are related to changes in the cardiac vasculature during cardiovascular diseases, it also summarizes state-of-the-art vascular imaging techniques. The advantages and disadvantages of the different imaging techniques are highlighted, as well as their principles, methodologies, and preclinical and clinical applications with potential future directions. These multi-scale approaches of vascular imaging carry great potential to further expand our understanding of basic vascular biology, to enable early diagnosis of vascular changes and to provide sensitive diagnostic imaging techniques in the management of cardiovascular disease.
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Affiliation(s)
- Ashish Tiwari
- Faculty of Biomedical Engineering, Technion-Israel Institute of Technology, Haifa, Israel
| | - Betsalel Elgrably
- Faculty of Biomedical Engineering, Technion-Israel Institute of Technology, Haifa, Israel
| | - Galit Saar
- Biomedical Core Facility, Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel
| | - Katrien Vandoorne
- Faculty of Biomedical Engineering, Technion-Israel Institute of Technology, Haifa, Israel
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12
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Duatti A. Matched pairs of radioactive and paramagnetic isotopes. Nucl Med Mol Imaging 2022. [DOI: 10.1016/b978-0-12-822960-6.00138-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Kalkowski L, Golubczyk D, Kwiatkowska J, Holak P, Milewska K, Janowski M, Oliveira JM, Walczak P, Malysz-Cymborska I. Two in One: Use of Divalent Manganese Ions as Both Cross-Linking and MRI Contrast Agent for Intrathecal Injection of Hydrogel-Embedded Stem Cells. Pharmaceutics 2021; 13:pharmaceutics13071076. [PMID: 34371767 PMCID: PMC8309201 DOI: 10.3390/pharmaceutics13071076] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 07/02/2021] [Accepted: 07/08/2021] [Indexed: 12/04/2022] Open
Abstract
Cell therapy is a promising tool for treating central nervous system (CNS) disorders; though, the translational efforts are plagued by ineffective delivery methods. Due to the large contact surface with CNS and relatively easy access, the intrathecal route of administration is attractive in extensive or global diseases such as stroke or amyotrophic lateral sclerosis (ALS). However, the precision and efficacy of this approach are still a challenge. Hydrogels were introduced to minimize cell sedimentation and improve cell viability. At the same time, contrast agents were integrated to allow image-guided injection. Here, we report using manganese ions (Mn2+) as a dual agent for cross-linking alginate-based hydrogels and magnetic resonance imaging (MRI). We performed in vitro studies to test the Mn2+ alginate hydrogel formulations for biocompatibility, injectability, MRI signal retention time, and effect on cell viability. The selected formulation was injected intrathecally into pigs under MRI control. The biocompatibility test showed a lack of immune response, and cells suspended in the hydrogel showed greater viability than monolayer culture. Moreover, Mn2+-labeled hydrogel produced a strong T1 MRI signal, which enabled MRI-guided procedure. We confirmed the utility of Mn2+ alginate hydrogel as a carrier for cells in large animals and a contrast agent at the same time.
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Affiliation(s)
- Lukasz Kalkowski
- Department of Neurosurgery, School of Medicine, Collegium Medicum, University of Warmia and Mazury, 10-082 Olsztyn, Poland; (L.K.); (D.G.); (J.K.); (K.M.)
| | - Dominika Golubczyk
- Department of Neurosurgery, School of Medicine, Collegium Medicum, University of Warmia and Mazury, 10-082 Olsztyn, Poland; (L.K.); (D.G.); (J.K.); (K.M.)
| | - Joanna Kwiatkowska
- Department of Neurosurgery, School of Medicine, Collegium Medicum, University of Warmia and Mazury, 10-082 Olsztyn, Poland; (L.K.); (D.G.); (J.K.); (K.M.)
| | - Piotr Holak
- Department of Surgery and Radiology, Faculty of Veterinary Medicine, University of Warmia and Mazury, 10-719 Olsztyn, Poland;
| | - Kamila Milewska
- Department of Neurosurgery, School of Medicine, Collegium Medicum, University of Warmia and Mazury, 10-082 Olsztyn, Poland; (L.K.); (D.G.); (J.K.); (K.M.)
| | - Miroslaw Janowski
- Center for Advanced Imaging Research, Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine, Baltimore, MD 21201, USA; (M.J.); (P.W.)
| | - Joaquim Miguel Oliveira
- a3B’s Research Group, I3Bs—Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Avepark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Guimarães, Portugal;
- ICVS/3B’s—PT Government Associate Laboratory, 4806-909 Guimarães, Portugal
| | - Piotr Walczak
- Center for Advanced Imaging Research, Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine, Baltimore, MD 21201, USA; (M.J.); (P.W.)
| | - Izabela Malysz-Cymborska
- Department of Neurosurgery, School of Medicine, Collegium Medicum, University of Warmia and Mazury, 10-082 Olsztyn, Poland; (L.K.); (D.G.); (J.K.); (K.M.)
- Correspondence: ; Tel.: +48-605118887
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Tian M, He X, Jin C, He X, Wu S, Zhou R, Zhang X, Zhang K, Gu W, Wang J, Zhang H. Transpathology: molecular imaging-based pathology. Eur J Nucl Med Mol Imaging 2021; 48:2338-2350. [PMID: 33585964 PMCID: PMC8241651 DOI: 10.1007/s00259-021-05234-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Accepted: 02/01/2021] [Indexed: 12/27/2022]
Abstract
Pathology is the medical specialty concerned with the study of the disease nature and causes, playing a key role in bridging basic researches and clinical medicine. In the course of development, pathology has significantly expanded our understanding of disease, and exerted enormous impact on the management of patients. However, challenges facing pathology, the inherent invasiveness of pathological practice and the persistent concerns on the sample representativeness, constitute its limitations. Molecular imaging is a noninvasive technique to visualize, characterize, and measure biological processes at the molecular level in living subjects. With the continuous development of equipment and probes, molecular imaging has enabled an increasingly precise evaluation of pathophysiological changes. A new pathophysiology visualization system based on molecular imaging is forming and shows the great potential to reform the pathological practice. Several improvements in "trans-," including trans-scale, transparency, and translation, would be driven by this new kind of pathological practice. Pathological changes could be evaluated in a trans-scale imaging mode; tissues could be transparentized to better present the underlying pathophysiological information; and the translational processes of basic research to the clinical practice would be better facilitated. Thus, transpathology would greatly facilitate in deciphering the pathophysiological events in a multiscale perspective, and supporting the precision medicine in the future.
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Affiliation(s)
- Mei Tian
- Department of Nuclear Medicine and PET Center, The Second Affiliated Hospital of Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China.
- Institute of Nuclear Medicine and Molecular Imaging of Zhejiang University, Hangzhou, China.
- Key Laboratory of Medical Molecular Imaging of Zhejiang Province, Hangzhou, China.
| | - Xuexin He
- Department of Medical Oncology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Chentao Jin
- Department of Nuclear Medicine and PET Center, The Second Affiliated Hospital of Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China
- Institute of Nuclear Medicine and Molecular Imaging of Zhejiang University, Hangzhou, China
- Key Laboratory of Medical Molecular Imaging of Zhejiang Province, Hangzhou, China
| | - Xiao He
- Department of Nuclear Medicine and PET Center, The Second Affiliated Hospital of Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China
- Institute of Nuclear Medicine and Molecular Imaging of Zhejiang University, Hangzhou, China
- Key Laboratory of Medical Molecular Imaging of Zhejiang Province, Hangzhou, China
| | - Shuang Wu
- Department of Nuclear Medicine and PET Center, The Second Affiliated Hospital of Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China
- Institute of Nuclear Medicine and Molecular Imaging of Zhejiang University, Hangzhou, China
- Key Laboratory of Medical Molecular Imaging of Zhejiang Province, Hangzhou, China
| | - Rui Zhou
- Department of Nuclear Medicine and PET Center, The Second Affiliated Hospital of Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China
- Institute of Nuclear Medicine and Molecular Imaging of Zhejiang University, Hangzhou, China
- Key Laboratory of Medical Molecular Imaging of Zhejiang Province, Hangzhou, China
| | - Xiaohui Zhang
- Department of Nuclear Medicine and PET Center, The Second Affiliated Hospital of Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China
- Institute of Nuclear Medicine and Molecular Imaging of Zhejiang University, Hangzhou, China
- Key Laboratory of Medical Molecular Imaging of Zhejiang Province, Hangzhou, China
| | - Kai Zhang
- Laboratory for Pathophysiological and Health Science, RIKEN Center for Biosystems Dynamics Research, Kobe, Hyogo, Japan
| | - Weizhong Gu
- Department of Pathology, Children's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Jing Wang
- Department of Nuclear Medicine and PET Center, The Second Affiliated Hospital of Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China
- Institute of Nuclear Medicine and Molecular Imaging of Zhejiang University, Hangzhou, China
- Key Laboratory of Medical Molecular Imaging of Zhejiang Province, Hangzhou, China
| | - Hong Zhang
- Department of Nuclear Medicine and PET Center, The Second Affiliated Hospital of Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China.
- Institute of Nuclear Medicine and Molecular Imaging of Zhejiang University, Hangzhou, China.
- Key Laboratory of Medical Molecular Imaging of Zhejiang Province, Hangzhou, China.
- College of Biomedical Engineering & Instrument Science, Zhejiang University, Hangzhou, China.
- Key Laboratory for Biomedical Engineering of Ministry of Education, Zhejiang University, Hangzhou, China.
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15
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Spath NB, Singh T, Papanastasiou G, Baker A, Janiczek RJ, McCann GP, Dweck MR, Kershaw L, Newby DE, Semple S. Assessment of stunned and viable myocardium using manganese-enhanced MRI. Open Heart 2021; 8:openhrt-2021-001646. [PMID: 34099530 PMCID: PMC8186753 DOI: 10.1136/openhrt-2021-001646] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 05/14/2021] [Indexed: 12/23/2022] Open
Abstract
OBJECTIVE In a proof-of-concept study, to quantify myocardial viability in patients with acute myocardial infarction using manganese-enhanced MRI (MEMRI), a measure of intracellular calcium handling. METHODS Healthy volunteers (n=20) and patients with ST-elevation myocardial infarction (n=20) underwent late gadolinium enhancement (LGE) using gadobutrol and MEMRI using manganese dipyridoxyl diphosphate. Patients were scanned ≤7 days after reperfusion and rescanned after 3 months. Differential manganese uptake was described using a two-compartment model. RESULTS After manganese administration, healthy control and remote non-infarcted myocardium showed a sustained 25% reduction in T1 values (mean reductions, 288±34 and 281±12 ms). Infarcted myocardium demonstrated less T1 shortening than healthy control or remote myocardium (1157±74 vs 859±36 and 835±28 ms; both p<0.0001) with intermediate T1 values (1007±31 ms) in peri-infarct regions. Compared with LGE, MEMRI was more sensitive in detecting dysfunctional myocardium (dysfunctional fraction 40.5±11.9 vs 34.9%±13.9%; p=0.02) and tracked more closely with abnormal wall motion (r2=0.72 vs 0.55; p<0.0001). Kinetic modelling showed reduced myocardial manganese influx between remote, peri-infarct and infarct regions, enabling absolute discrimination of infarcted myocardium. After 3 months, manganese uptake increased in peri-infarct regions (16.5±3.5 vs 22.8±3.5 mL/100 g/min, p<0.0001), but not the remote (23.3±2.8 vs 23.0±3.2 mL/100 g/min, p=0.8) or infarcted (11.5±3.7 vs 14.0±1.2 mL/100 g/min, p>0.1) myocardium. CONCLUSIONS Through visualisation of intracellular calcium handling, MEMRI accurately differentiates infarcted, stunned and viable myocardium, and correlates with myocardial dysfunction better than LGE. MEMRI holds major promise in directly assessing myocardial viability, function and calcium handling across a range of cardiac diseases. TRIAL REGISTRATION NUMBERS NCT03607669; EudraCT number 2016-003782-25.
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Affiliation(s)
- Nick B Spath
- Centre for Cardiovascular Science, The University of Edinburgh, Edinburgh, UK
| | - Trisha Singh
- Centre for Cardiovascular Science, The University of Edinburgh, Edinburgh, UK
| | | | - Andrew Baker
- Centre for Cardiovascular Science, The University of Edinburgh, Edinburgh, UK
| | | | - Gerry P McCann
- Department of Cardiovascular Sciences, University of Leicester, Leicester, UK
| | - Marc R Dweck
- Centre for Cardiovascular Science, The University of Edinburgh, Edinburgh, UK
| | - Lucy Kershaw
- Centre for Cardiovascular Science, The University of Edinburgh, Edinburgh, UK
| | - David E Newby
- Centre for Cardiovascular Science, The University of Edinburgh, Edinburgh, UK
| | - Scott Semple
- Centre for Cardiovascular Science, The University of Edinburgh, Edinburgh, UK
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Jasmin NH, Thin MZ, Johnson RD, Jackson LH, Roberts TA, David AL, Lythgoe MF, Yang PC, Davidson SM, Camelliti P, Stuckey DJ. Myocardial Viability Imaging using Manganese-Enhanced MRI in the First Hours after Myocardial Infarction. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:e2003987. [PMID: 34105284 PMCID: PMC8188227 DOI: 10.1002/advs.202003987] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Revised: 02/08/2021] [Indexed: 05/19/2023]
Abstract
Early measurements of tissue viability after myocardial infarction (MI) are essential for accurate diagnosis and treatment planning but are challenging to obtain. Here, manganese, a calcium analogue and clinically approved magnetic resonance imaging (MRI) contrast agent, is used as an imaging biomarker of myocardial viability in the first hours after experimental MI. Safe Mn2+ dosing is confirmed by measuring in vitro beating rates, calcium transients, and action potentials in cardiomyocytes, and in vivo heart rates and cardiac contractility in mice. Quantitative T1 mapping-manganese-enhanced MRI (MEMRI) reveals elevated and increasing Mn2+ uptake in viable myocardium remote from the infarct, suggesting MEMRI offers a quantitative biomarker of cardiac inotropy. MEMRI evaluation of infarct size at 1 h, 1 and 14 days after MI quantifies myocardial viability earlier than the current gold-standard technique, late-gadolinium-enhanced MRI. These data, coupled with the re-emergence of clinical Mn2+ -based contrast agents open the possibility of using MEMRI for direct evaluation of myocardial viability early after ischemic onset in patients.
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Affiliation(s)
- Nur Hayati Jasmin
- UCL Centre for Advanced Biomedical ImagingDivision of MedicineUniversity College LondonLondonWC1E 6DDUK
- School of Medical ImagingFaculty of Health SciencesUniversiti Sultan Zainal AbidinKuala Terengganu21300Malaysia
| | - May Zaw Thin
- UCL Centre for Advanced Biomedical ImagingDivision of MedicineUniversity College LondonLondonWC1E 6DDUK
| | - Robert D. Johnson
- School of Biosciences and MedicineUniversity of SurreyGuildfordGU2 7XHUK
| | - Laurence H. Jackson
- School of Biomedical Engineering & Imaging SciencesKing's College LondonLondonSE1 7EHUK
| | - Thomas A. Roberts
- School of Biomedical Engineering & Imaging SciencesKing's College LondonLondonSE1 7EHUK
| | - Anna L. David
- UCL Elizabeth Garrett Anderson Institute for Women's HealthLondonWC1E 6BTUK
| | - Mark F. Lythgoe
- UCL Centre for Advanced Biomedical ImagingDivision of MedicineUniversity College LondonLondonWC1E 6DDUK
| | - Philip C. Yang
- Division of Cardiovascular MedicineDepartment of MedicineStanford UniversityStanfordCA94305USA
| | - Sean M. Davidson
- The Hatter Cardiovascular InstituteUniversity College London67 Chenies MewsLondonWC1E 6HXUK
| | - Patrizia Camelliti
- School of Biosciences and MedicineUniversity of SurreyGuildfordGU2 7XHUK
| | - Daniel J. Stuckey
- UCL Centre for Advanced Biomedical ImagingDivision of MedicineUniversity College LondonLondonWC1E 6DDUK
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Vallet N, Boissel N, Elefant E, Chevillon F, Pasquer H, Calvo C, Dhedin N, Poirot C. Can Some Anticancer Treatments Preserve the Ovarian Reserve? Oncologist 2021; 26:492-503. [PMID: 33458904 DOI: 10.1002/onco.13675] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Accepted: 12/21/2020] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Preventing premature ovarian failure (POF) is a major challenge in oncology. With conventional regimens, cytotoxicity-associated POF involves primordial follicles (PF) pool depletion by apoptosis or overactivation mechanisms, notably mediated by the ABL/TAp63 and PI3K/Akt/mTOR pathways. New anticancer treatments have been designed to target pathways implicated in tumor growth. Although concerns regarding fertility arise with these targeted therapies, we hypothesized that targeted therapies may exert off-tumor effects on PF that might delay POF. We provide an overview of evidence concerning these off-tumor effects on PF. Limitations and future potential implications of these findings are discussed. DESIGN PubMed was searched by combining Boolean operators with the following keywords: fertility, ovarian, follicle, anti-tumoral, cancer, targeted, cytotoxic, and chemotherapy. RESULTS Cisplatin-related PF apoptosis via the ABL/TAp63 pathway was targeted with a tyrosine kinase inhibitor, imatinib, in mice, but effects were recently challenged by findings on human ovarian xenografts in mice. In cyclophosphamide-treated mice, PI3K/Akt/mTOR pathway inhibition with mTOR inhibitors and AS101 preserved the PF pool. Proteasome and GSK3 inhibitors were evaluated for direct and indirect follicle DNA damage prevention. Surprisingly, evidence for cytotoxic drug association with PF pool preservation was found. We also describe selected non-anticancer molecules that may minimize gonadotoxicity. CONCLUSION Not all anticancer treatments are associated with POF, particularly since the advent of targeted therapies. The feasibility of associating a protective drug targeting PF exhaustion mechanisms with cytotoxic treatments should be evaluated, as a way of decreasing the need for conventional fertility preservation techniques. Further evaluations are required for transfer into clinical practice. IMPLICATIONS FOR PRACTICE Anticancer therapies are associated with infertility in 10%-70% of patients, which is the result of primordial follicles pool depletion. Alone or associated with gonadotoxic treatments, some targeted therapies may exert favorable off-targets effects on the primordial follicle pool by slowing down their exhaustion. Current evidence of these effects relies on murine models or human in vitro models. Evaluation of these protective strategies in humans is challenging; however, if these results are confirmed with clinical and biological data, it not only could be a new approach to female fertility preservation but also would change standard fertility strategies.
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Affiliation(s)
- Nicolas Vallet
- Department of Hematology and Cellular Therapy, Tours University Hospital, Tours, France
| | - Nicolas Boissel
- Department of Hematology, Adolescent and Young Adults Unit, Fertility Preservation, Saint Louis Hospital, AP-, HP, Paris, France.,Paris University, Paris, France
| | - Elisabeth Elefant
- Centre de Référence sur les Agents Tératogènes (CRAT), Armand Trousseau Hospital, AP-, HP, Paris, France.,Faculty of Medicine, Sorbonne University, Paris, France
| | - Florian Chevillon
- Department of Hematology, Adolescent and Young Adults Unit, Fertility Preservation, Saint Louis Hospital, AP-, HP, Paris, France
| | - Hélène Pasquer
- Department of Hematology, Adolescent and Young Adults Unit, Fertility Preservation, Saint Louis Hospital, AP-, HP, Paris, France
| | - Charlotte Calvo
- Pediatric Hematology Department, Robert Debré Hospital, AP-, HP, Paris, France
| | - Nathalie Dhedin
- Department of Hematology, Adolescent and Young Adults Unit, Fertility Preservation, Saint Louis Hospital, AP-, HP, Paris, France
| | - Catherine Poirot
- Department of Hematology, Adolescent and Young Adults Unit, Fertility Preservation, Saint Louis Hospital, AP-, HP, Paris, France.,Faculty of Medicine, Sorbonne University, Paris, France
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Spath NB, Singh T, Papanastasiou G, Kershaw L, Baker AH, Janiczek RL, Gulsin GS, Dweck MR, McCann G, Newby DE, Semple SI. Manganese-enhanced magnetic resonance imaging in dilated cardiomyopathy and hypertrophic cardiomyopathy. Eur Heart J Cardiovasc Imaging 2020:jeaa273. [PMID: 33200175 DOI: 10.1093/ehjci/jeaa273] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Accepted: 09/17/2020] [Indexed: 01/07/2023] Open
Abstract
AIMS The aim of this study is to quantify altered myocardial calcium handling in non-ischaemic cardiomyopathy using magnetic resonance imaging. METHODS AND RESULTS Patients with dilated cardiomyopathy (n = 10) or hypertrophic cardiomyopathy (n = 17) underwent both gadolinium and manganese contrast-enhanced magnetic resonance imaging and were compared with healthy volunteers (n = 20). Differential manganese uptake (Ki) was assessed using a two-compartment Patlak model. Compared with healthy volunteers, reduction in T1 with manganese-enhanced magnetic resonance imaging was lower in patients with dilated cardiomyopathy [mean reduction 257 ± 45 (21%) vs. 288 ± 34 (26%) ms, P < 0.001], with higher T1 at 40 min (948 ± 57 vs. 834 ± 28 ms, P < 0.0001). In patients with hypertrophic cardiomyopathy, reductions in T1 were less than healthy volunteers [mean reduction 251 ± 86 (18%) and 277 ± 34 (23%) vs. 288 ± 34 (26%) ms, with and without fibrosis respectively, P < 0.001]. Myocardial manganese uptake was modelled, rate of uptake was reduced in both dilated and hypertrophic cardiomyopathy in comparison with healthy volunteers (mean Ki 19 ± 4, 19 ± 3, and 23 ± 4 mL/100 g/min, respectively; P = 0.0068). In patients with dilated cardiomyopathy, manganese uptake rate correlated with left ventricular ejection fraction (r2 = 0.61, P = 0.009). Rate of myocardial manganese uptake demonstrated stepwise reductions across healthy myocardium, hypertrophic cardiomyopathy without fibrosis and hypertrophic cardiomyopathy with fibrosis providing absolute discrimination between the healthy myocardium and fibrosed myocardium (mean Ki 23 ± 4, 19 ± 3, and 13 ± 4 mL/100 g/min, respectively; P < 0.0001). CONCLUSION The rate of manganese uptake in both dilated and hypertrophic cardiomyopathy provides a measure of altered myocardial calcium handling. This holds major promise for the detection and monitoring of dysfunctional myocardium, with the potential for early intervention and prognostication.
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Affiliation(s)
- N B Spath
- BHF/University Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, EH16 4SA, UK
- Edinburgh Heart Centre, Royal Infirmary of Edinburgh, Edinburgh, EH16 4SB, UK
- Edinburgh Imaging, University of Edinburgh, Edinburgh, EH16 4TJ, UK
| | - T Singh
- BHF/University Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, EH16 4SA, UK
- Edinburgh Heart Centre, Royal Infirmary of Edinburgh, Edinburgh, EH16 4SB, UK
- Edinburgh Imaging, University of Edinburgh, Edinburgh, EH16 4TJ, UK
| | - G Papanastasiou
- BHF/University Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, EH16 4SA, UK
- Edinburgh Imaging, University of Edinburgh, Edinburgh, EH16 4TJ, UK
| | - L Kershaw
- Edinburgh Imaging, University of Edinburgh, Edinburgh, EH16 4TJ, UK
- Centre for Inflammation Research, University of Edinburgh, Edinburgh, EH16 4TJ, UK
| | - A H Baker
- BHF/University Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, EH16 4SA, UK
| | - R L Janiczek
- Department of Clinical Imaging, GlaxoSmithKline, Gunnels Wood Road, Stevenage, Hertfordshire, SG1 2NY, UK
| | - G S Gulsin
- Department of Cardiovascular Sciences, University of Leicester, NIHR Leicester Biomedical Research Centre, Glenfield Hospital, Leicester, LE3 9QP, UK
| | - M R Dweck
- BHF/University Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, EH16 4SA, UK
- Edinburgh Heart Centre, Royal Infirmary of Edinburgh, Edinburgh, EH16 4SB, UK
- Edinburgh Imaging, University of Edinburgh, Edinburgh, EH16 4TJ, UK
| | - G McCann
- Department of Cardiovascular Sciences, University of Leicester, NIHR Leicester Biomedical Research Centre, Glenfield Hospital, Leicester, LE3 9QP, UK
| | - D E Newby
- BHF/University Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, EH16 4SA, UK
- Edinburgh Heart Centre, Royal Infirmary of Edinburgh, Edinburgh, EH16 4SB, UK
- Edinburgh Imaging, University of Edinburgh, Edinburgh, EH16 4TJ, UK
| | - S I Semple
- BHF/University Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, EH16 4SA, UK
- Edinburgh Imaging, University of Edinburgh, Edinburgh, EH16 4TJ, UK
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