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Fan Z, Iqbal H, Ni J, Khan NU, Irshad S, Razzaq A, Alfaifi MY, Elbehairi SEI, Shati AA, Zhou J, Cheng H. Rationalized landscape on protein-based cancer nanomedicine: Recent progress and challenges. Int J Pharm X 2024; 7:100238. [PMID: 38511068 PMCID: PMC10951516 DOI: 10.1016/j.ijpx.2024.100238] [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: 01/11/2024] [Revised: 03/07/2024] [Accepted: 03/08/2024] [Indexed: 03/22/2024] Open
Abstract
The clinical advancement of protein-based nanomedicine has revolutionized medical professionals' perspectives on cancer therapy. Protein-based nanoparticles have been exploited as attractive vehicles for cancer nanomedicine due to their unique properties derived from naturally biomacromolecules with superior biocompatibility and pharmaceutical features. Furthermore, the successful translation of Abraxane™ (paclitaxel-based albumin nanoparticles) into clinical application opened a new avenue for protein-based cancer nanomedicine. In this mini-review article, we demonstrate the rational design and recent progress of protein-based nanoparticles along with their applications in cancer diagnosis and therapy from recent literature. The current challenges and hurdles that hinder clinical application of protein-based nanoparticles are highlighted. Finally, future perspectives for translating protein-based nanoparticles into clinic are identified.
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Affiliation(s)
- Zhechen Fan
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, China Pharmaceutical University, Nanjing 210009, China
| | - Haroon Iqbal
- Eye Hospital, School of Ophthalmology and Optometry, Wenzhou Medical University, Wenzhou 325027, Zhejiang, China
| | - Jiang Ni
- Department of Pharmacy, Affiliated Hospital of Jiangnan University, Wuxi 214000, China
| | - Naveed Ullah Khan
- Department of Pharmacy, Zhejiang University of Technology, Hangzhou 310000, China
| | - Shahla Irshad
- Department of Allied Health Sciences, Faculty of Health and Medical Sciences, Mirpur University of Science and Technology (MUST), Mirpur, Azad Jammu and Kashmir 10250, Pakistan
| | - Anam Razzaq
- College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, China
| | - Mohammad Y. Alfaifi
- King Khalid University, Faculty of Science, Biology Department, Abha 9004, Saudi Arabia
| | | | - Ali A. Shati
- King Khalid University, Faculty of Science, Biology Department, Abha 9004, Saudi Arabia
| | - Jianping Zhou
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, China Pharmaceutical University, Nanjing 210009, China
| | - Hao Cheng
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, China Pharmaceutical University, Nanjing 210009, China
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Weinberger T, Denise M, Joppich M, Fischer M, Garcia Rodriguez C, Kumaraswami K, Wimmler V, Ablinger S, Räuber S, Fang J, Liu L, Liu WH, Winterhalter J, Lichti J, Thomas L, Esfandyari D, Percin G, Matin S, Hidalgo A, Waskow C, Engelhardt S, Todica A, Zimmer R, Pridans C, Gomez Perdiguero E, Schulz C. Resident and recruited macrophages differentially contribute to cardiac healing after myocardial ischemia. eLife 2024; 12:RP89377. [PMID: 38775664 PMCID: PMC11111219 DOI: 10.7554/elife.89377] [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] [Indexed: 05/24/2024] Open
Abstract
Cardiac macrophages are heterogenous in phenotype and functions, which has been associated with differences in their ontogeny. Despite extensive research, our understanding of the precise role of different subsets of macrophages in ischemia/reperfusion (I/R) injury remains incomplete. We here investigated macrophage lineages and ablated tissue macrophages in homeostasis and after I/R injury in a CSF1R-dependent manner. Genomic deletion of a fms-intronic regulatory element (FIRE) in the Csf1r locus resulted in specific absence of resident homeostatic and antigen-presenting macrophages, without affecting the recruitment of monocyte-derived macrophages to the infarcted heart. Specific absence of homeostatic, monocyte-independent macrophages altered the immune cell crosstalk in response to injury and induced proinflammatory neutrophil polarization, resulting in impaired cardiac remodeling without influencing infarct size. In contrast, continuous CSF1R inhibition led to depletion of both resident and recruited macrophage populations. This augmented adverse remodeling after I/R and led to an increased infarct size and deterioration of cardiac function. In summary, resident macrophages orchestrate inflammatory responses improving cardiac remodeling, while recruited macrophages determine infarct size after I/R injury. These findings attribute distinct beneficial effects to different macrophage populations in the context of myocardial infarction.
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Affiliation(s)
- Tobias Weinberger
- Medical Clinic I., Department of Cardiology, University Hospital, Ludwig Maximilian UniversityMunichGermany
- Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine UniversityMunichGermany
- DZHK (German Centre for Cardiovascular Research), Partner site Munich Heart AllianceMunichGermany
- Institut Pasteur, Unité Macrophages et Développement de l'Immunité, Département de Biologie du Développement et Cellules SouchesParisFrance
| | - Messerer Denise
- Medical Clinic I., Department of Cardiology, University Hospital, Ludwig Maximilian UniversityMunichGermany
- Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine UniversityMunichGermany
| | - Markus Joppich
- LFE Bioinformatik, Department of Informatics, Ludwig Maximilian UniversityMunichGermany
| | - Maximilian Fischer
- Medical Clinic I., Department of Cardiology, University Hospital, Ludwig Maximilian UniversityMunichGermany
- Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine UniversityMunichGermany
- DZHK (German Centre for Cardiovascular Research), Partner site Munich Heart AllianceMunichGermany
| | - Clarisabel Garcia Rodriguez
- Institut Pasteur, Unité Macrophages et Développement de l'Immunité, Département de Biologie du Développement et Cellules SouchesParisFrance
| | - Konda Kumaraswami
- Medical Clinic I., Department of Cardiology, University Hospital, Ludwig Maximilian UniversityMunichGermany
- Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine UniversityMunichGermany
| | - Vanessa Wimmler
- Medical Clinic I., Department of Cardiology, University Hospital, Ludwig Maximilian UniversityMunichGermany
- Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine UniversityMunichGermany
| | - Sonja Ablinger
- Medical Clinic I., Department of Cardiology, University Hospital, Ludwig Maximilian UniversityMunichGermany
- Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine UniversityMunichGermany
| | - Saskia Räuber
- Medical Clinic I., Department of Cardiology, University Hospital, Ludwig Maximilian UniversityMunichGermany
- Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine UniversityMunichGermany
- Department of Neurology, Medical Faculty, Heinrich Heine University of DüsseldorfDüsseldorfGermany
| | - Jiahui Fang
- Medical Clinic I., Department of Cardiology, University Hospital, Ludwig Maximilian UniversityMunichGermany
- Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine UniversityMunichGermany
| | - Lulu Liu
- Medical Clinic I., Department of Cardiology, University Hospital, Ludwig Maximilian UniversityMunichGermany
- Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine UniversityMunichGermany
| | - Wing Han Liu
- Medical Clinic I., Department of Cardiology, University Hospital, Ludwig Maximilian UniversityMunichGermany
| | - Julia Winterhalter
- Medical Clinic I., Department of Cardiology, University Hospital, Ludwig Maximilian UniversityMunichGermany
- Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine UniversityMunichGermany
| | - Johannes Lichti
- Medical Clinic I., Department of Cardiology, University Hospital, Ludwig Maximilian UniversityMunichGermany
| | - Lukas Thomas
- Medical Clinic I., Department of Cardiology, University Hospital, Ludwig Maximilian UniversityMunichGermany
- Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine UniversityMunichGermany
- DZHK (German Centre for Cardiovascular Research), Partner site Munich Heart AllianceMunichGermany
| | - Dena Esfandyari
- DZHK (German Centre for Cardiovascular Research), Partner site Munich Heart AllianceMunichGermany
- Institute of Pharmacology and Toxicology, Technical University MunichMunichGermany
| | - Guelce Percin
- Immunology of Aging, Leibniz-Institute on Aging - Fritz-Lipmann-Institute (FLI)JenaGermany
| | - Sandra Matin
- Area of Cell & Developmental Biology, Centro Nacional de Investigaciones Cardiovasculares Carlos IIIMadridSpain
| | - Andrés Hidalgo
- Area of Cell & Developmental Biology, Centro Nacional de Investigaciones Cardiovasculares Carlos IIIMadridSpain
- Vascular Biology and Therapeutics Program and Department of Immunobiology, Yale University School of MedicineNew HavenUnited States
| | - Claudia Waskow
- Immunology of Aging, Leibniz-Institute on Aging - Fritz-Lipmann-Institute (FLI)JenaGermany
- Faculty of Biological Sciences, Friedrich-Schiller-UniversityJenaGermany
| | - Stefan Engelhardt
- DZHK (German Centre for Cardiovascular Research), Partner site Munich Heart AllianceMunichGermany
- Institute of Pharmacology and Toxicology, Technical University MunichMunichGermany
| | - Andrei Todica
- Department of Nuclear Medicine, Ludwig Maximilian UniversityMunichGermany
| | - Ralf Zimmer
- LFE Bioinformatik, Department of Informatics, Ludwig Maximilian UniversityMunichGermany
| | - Clare Pridans
- Simons Initiative for the Developing Brain, Centre for Discovery Brain Sciences, University of EdinburghEdinburghUnited Kingdom
- University of Edinburgh Centre for Inflammation Research, The Queen's Medical Research InstituteEdinburghUnited Kingdom
| | - Elisa Gomez Perdiguero
- Institut Pasteur, Unité Macrophages et Développement de l'Immunité, Département de Biologie du Développement et Cellules SouchesParisFrance
| | - Christian Schulz
- Medical Clinic I., Department of Cardiology, University Hospital, Ludwig Maximilian UniversityMunichGermany
- Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine UniversityMunichGermany
- DZHK (German Centre for Cardiovascular Research), Partner site Munich Heart AllianceMunichGermany
- Department of Immunopharmacology, Mannheim Institute for Innate Immunoscience (MI3), Medical Faculty Mannheim, Heidelberg UniversityMannheimGermany
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Fischer M, Zacherl MJ, Olivier J, Lindner S, Massberg S, Bartenstein P, Grawe F, Ziegler S, Brendel M, Lehner S, Boening G, Todica A. Detection of apoptosis by [ 18F]ML-10 after cardiac ischemia-reperfusion injury in mice. Ann Nucl Med 2023; 37:34-43. [PMID: 36306025 PMCID: PMC9813199 DOI: 10.1007/s12149-022-01801-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 10/20/2022] [Indexed: 01/09/2023]
Abstract
OBJECTIVE Myocardial infarction leads to ischemic heart disease and cell death, which is still a major obstacle in western society. In vivo imaging of apoptosis, a defined cascade of cell death, could identify myocardial tissue at risk. METHODS Using 2-(5-[18F]fluoropentyl)-2-methyl-malonic acid ([18F]ML-10) in autoradiography and positron emission tomography (PET) visualized apoptosis in a mouse model of transient ligation of the left anterior descending (LAD) artery. 2-deoxy-2-[18F]fluoro-D-glucose ([18F]FDG) PET imaging indicated the defect area. Terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) histology stain indicated cardiac apoptosis. RESULTS [18F]ML-10 uptake was evident in the ischemic area after transient LAD ligation in ex vivo autoradiography and in vivo PET imaging. Detection of [18F]ML-10 is in line with the defect visualized by [18F]FDG and the histological approach of TUNEL staining. CONCLUSION The tracer [18F]ML-10 is suitable for detecting apoptosis after transient LAD ligation in mice.
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Affiliation(s)
- Maximilian Fischer
- Medizinische Klinik Und Poliklinik I, Klinikum Der Universität München, Ludwig-Maximilians-Universität, Marchioninistrasse 15, 81377, Munich, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, 80802, Munich, Germany
| | - Mathias J Zacherl
- Department of Nuclear Medicine, University Hospital, LMU Munich, Marchioninistr. 15, 81377, Munich, Germany
| | - Jessica Olivier
- Department of Nuclear Medicine, University Hospital, LMU Munich, Marchioninistr. 15, 81377, Munich, Germany
| | - Simon Lindner
- Department of Nuclear Medicine, University Hospital, LMU Munich, Marchioninistr. 15, 81377, Munich, Germany
| | - Steffen Massberg
- Medizinische Klinik Und Poliklinik I, Klinikum Der Universität München, Ludwig-Maximilians-Universität, Marchioninistrasse 15, 81377, Munich, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, 80802, Munich, Germany
| | - Peter Bartenstein
- Department of Nuclear Medicine, University Hospital, LMU Munich, Marchioninistr. 15, 81377, Munich, Germany
| | - Freba Grawe
- Department of Radiology, University Hospital, LMU Munich, Munich, Germany
| | - Sibylle Ziegler
- Department of Nuclear Medicine, University Hospital, LMU Munich, Marchioninistr. 15, 81377, Munich, Germany
| | - Matthias Brendel
- Department of Nuclear Medicine, University Hospital, LMU Munich, Marchioninistr. 15, 81377, Munich, Germany
| | - Sebastian Lehner
- Department of Nuclear Medicine, University Hospital, LMU Munich, Marchioninistr. 15, 81377, Munich, Germany
| | - Guido Boening
- Department of Nuclear Medicine, University Hospital, LMU Munich, Marchioninistr. 15, 81377, Munich, Germany
| | - Andrei Todica
- Department of Nuclear Medicine, University Hospital, LMU Munich, Marchioninistr. 15, 81377, Munich, Germany.
- Die Radiologie, Munich, Germany.
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Fischer M, Olivier J, Lindner S, Zacherl MJ, Massberg S, Bartenstein P, Ziegler S, Brendel M, Lehner S, Boening G, Todica A. Detection of cardiac apoptosis by [ 18F]ML-10 in a mouse model of permanent LAD ligation. Mol Imaging Biol 2022; 24:666-674. [PMID: 35352214 PMCID: PMC9296384 DOI: 10.1007/s11307-022-01718-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 03/06/2022] [Accepted: 03/07/2022] [Indexed: 11/26/2022]
Abstract
PURPOSE The loss of viable cardiac cells and cell death by myocardial infarction (MI) is still a significant obstacle in preventing deteriorating heart failure. Imaging of apoptosis, a defined cascade to cell death, could identify areas at risk. PROCEDURES Using 2-(5-[18F]fluoropentyl)-2-methyl-malonic acid ([18F]ML-10) in autoradiography and positron emission tomography (PET) visualized apoptosis in murine hearts after permanent ligation of the left anterior descending artery (LAD) inducing myocardial infarction (MI). 2-deoxy-2-[18F]fluoro-D-glucose ([18F]FDG) PET imaging localized the infarct area after MI. Histology by terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) staining validated apoptosis in the heart. RESULTS Accumulation of [18F]ML-10 was evident in the infarct area after permanent ligation of the LAD in autoradiography and PET imaging. Detection of apoptosis by [18F]ML-10 is in line with the defect visualized by [18F]FDG and the histological approach. CONCLUSION [18F]ML-10 could be a suitable tracer for apoptosis imaging in a mouse model of permanent LAD ligation.
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Affiliation(s)
- Maximilian Fischer
- Medizinische Klinik und Poliklinik I, Klinikum der Universität München, Ludwig-Maximilians-Universität, Marchioninistrasse 15, 81377, Munich, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, 80802, Munich, Germany
| | - Jessica Olivier
- Department of Nuclear Medicine, University Hospital, LMU Munich, Marchioninistr. 15, 81377, Munich, Germany
| | - Simon Lindner
- Department of Nuclear Medicine, University Hospital, LMU Munich, Marchioninistr. 15, 81377, Munich, Germany
| | - Mathias J Zacherl
- Department of Nuclear Medicine, University Hospital, LMU Munich, Marchioninistr. 15, 81377, Munich, Germany
| | - Steffen Massberg
- Medizinische Klinik und Poliklinik I, Klinikum der Universität München, Ludwig-Maximilians-Universität, Marchioninistrasse 15, 81377, Munich, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, 80802, Munich, Germany
| | - Peter Bartenstein
- Department of Nuclear Medicine, University Hospital, LMU Munich, Marchioninistr. 15, 81377, Munich, Germany
| | - Sibylle Ziegler
- Department of Nuclear Medicine, University Hospital, LMU Munich, Marchioninistr. 15, 81377, Munich, Germany
| | - Matthias Brendel
- Department of Nuclear Medicine, University Hospital, LMU Munich, Marchioninistr. 15, 81377, Munich, Germany
| | - Sebastian Lehner
- Department of Nuclear Medicine, University Hospital, LMU Munich, Marchioninistr. 15, 81377, Munich, Germany
- Ambulatory Healthcare Center Dr. Neumaier & Colleagues, Radiology, Nuclear Medicine, Radiation Therapy, Regensburg, Germany
| | - Guido Boening
- Department of Nuclear Medicine, University Hospital, LMU Munich, Marchioninistr. 15, 81377, Munich, Germany
| | - Andrei Todica
- Department of Nuclear Medicine, University Hospital, LMU Munich, Marchioninistr. 15, 81377, Munich, Germany.
- DIE RADIOLOGIE, Munich, Germany.
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Comparison of transient and permanent LAD ligation in mice using 18F-FDG PET imaging. Ann Nucl Med 2022; 36:533-543. [PMID: 35355159 PMCID: PMC9132804 DOI: 10.1007/s12149-022-01734-8] [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: 12/12/2021] [Accepted: 02/27/2022] [Indexed: 11/10/2022]
Abstract
Objective Animal models for myocardial injuries represent important cornerstones in cardiovascular research to monitor the pathological processes and therapeutic approaches. We investigated the association of 18F-FDG derived left ventricular metabolic volume (LVMV), defect area and cardiac function in mice after permanent or transient ligation of the left anterior descending artery (LAD). Methods Serial non-invasive ECG-gated 2-deoxy-2-[18F]fluoro-d-glucose positron emission tomography (18F-FDG PET) after permanent or transient LAD ligation enabled a longitudinal in vivo correlation of 18F-FDG derived left ventricular metabolic volume to functional parameters and myocardial defect. Results The LVMV shows a more prominent drop after permanent than transient LAD ligation and recovers after 30 days. The loss of LVMV correlates with the defect area assessed by QPS software. Cardiac function parameters (e.g., EDV, ESV, SV) by the QGS software positively correlate with LVMV after permanent and transient LAD ligation. Conclusions This study provides novel insight into 18F-FDG derived LVMV after permanent and transient LAD ligation by longitudinal in 18F-FDG PET imaging and underlines the associations of the FDG derived parameter and cardiac function. Supplementary Information The online version contains supplementary material available at 10.1007/s12149-022-01734-8.
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The Number of Frames on ECG-Gated 18F-FDG Small Animal PET Has a Significant Impact on LV Systolic and Diastolic Functional Parameters. Mol Imaging 2022; 2021:4629459. [PMID: 34987313 PMCID: PMC8694669 DOI: 10.1155/2021/4629459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Accepted: 11/17/2021] [Indexed: 11/18/2022] Open
Abstract
Objectives This study is aimed at investigating the impact of frame numbers in preclinical electrocardiogram- (ECG-) gated 18F-fluorodeoxyglucose (18F-FDG) positron emission tomography (PET) on systolic and diastolic left ventricular (LV) parameters in rats. Methods 18F-FDG PET imaging using a dedicated small animal PET system with list mode data acquisition and continuous ECG recording was performed in diabetic and control rats. The list-mode data was sorted and reconstructed with different numbers of frames (4, 8, 12, and 16) per cardiac cycle into tomographic images. Using an automatic ventricular edge detection software, left ventricular (LV) functional parameters, including ejection fraction (EF), end-diastolic (EDV), and end-systolic volume (ESV), were calculated. Diastolic variables (time to peak filling (TPF), first third mean filling rate (1/3 FR), and peak filling rate (PFR)) were also assessed. Results Significant differences in multiple parameters were observed among the reconstructions with different frames per cardiac cycle. EDV significantly increased by numbers of frames (353.8 ± 57.7 μl∗, 380.8 ± 57.2 μl∗, 398.0 ± 63.1 μl∗, and 444.8 ± 75.3 μl at 4, 8, 12, and 16 frames, respectively; ∗P < 0.0001 vs. 16 frames), while systolic (EF) and diastolic (TPF, 1/3 FR and PFR) parameters were not significantly different between 12 and 16 frames. In addition, significant differences between diabetic and control animals in 1/3 FR and PFR in 16 frames per cardiac cycle were observed (P < 0.005), but not for 4, 8, and 12 frames. Conclusions Using ECG-gated PET in rats, measurements of cardiac function are significantly affected by the frames per cardiac cycle. Therefore, if you are going to compare those functional parameters, a consistent number of frames should be used.
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Zacherl MJ, Todica A, Wängler C, Schirrmacher R, Hajebrahimi MA, Pircher J, Li X, Lindner S, Brendel M, Bartenstein P, Massberg S, Brunner S, Lehner S, Hacker M, Huber BC. Molecular imaging of cardiac CXCR4 expression in a mouse model of acute myocardial infarction using a novel 68Ga-mCXCL12 PET tracer. J Nucl Cardiol 2021; 28:2965-2975. [PMID: 32676914 PMCID: PMC8709820 DOI: 10.1007/s12350-020-02262-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Accepted: 06/08/2020] [Indexed: 01/16/2023]
Abstract
BACKGROUND The chemokine receptor CXCR4 and its ligand CXCL12 have been shown to be a possible imaging and therapeutic target after myocardial infarction (MI). The murine-based and mouse-specific 68Ga-mCXCL12 PET tracer could be suitable for serial in vivo quantification of cardiac CXCR4 expression in a murine model of MI. METHODS AND RESULTS At days 1-6 after MI, mice were intravenously injected with 68Ga-mCXCL12. Autoradiography was performed and the infarct-to-remote ratio (I/R) was determined. In vivo PET imaging with 68Ga-mCXCL12 was conducted on days 1-6 after MI and the percentage of the injected dose (%ID/g) of the tracer uptake in the infarct area was calculated. 18F-FDG-PET was performed for anatomical landmarking. Ex vivo autoradiography identified CXCR4 upregulation in the infarct region with an increasing I/R after 12 hours (1.4 ± 0.3), showing a significant increase until day 2 (4.5 ± 0.6), followed by a plateau phase (day 4) and decrease after 10 days (1.3 ± 1.0). In vivo PET imaging identified similar CXCR4 upregulation in the infarct region which peaked around day 3 post MI (9.7 ± 5.0 %ID/g) and then subsequently decreased by day 6 (2.8 ± 1.0 %ID/g). CONCLUSION Noninvasive molecular imaging of cardiac CXCR4 expression using a novel, murine-based, and specific 68Ga-mCXCL12 tracer is feasible both ex vivo and in vivo.
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Affiliation(s)
| | - Andrei Todica
- Department of Nuclear Medicine, University Hospital of Munich, LMU Munich, Munich, Germany
| | - Carmen Wängler
- Biomedical Chemistry, Department of Clinical Radiology and Nuclear Medicine, Medical Faculty Mannheim of Heidelberg University, Mannheim, Germany
| | - Ralf Schirrmacher
- Department of Oncology, Division of Oncological Imaging, University of Alberta, Edmonton, AB, Canada
| | | | - Joachim Pircher
- Department of Cardiology, University Hospital of Munich, LMU Munich, Munich, Germany
- German Centre for Cardiovascular Research (DZHK), Partner Site Munich Heart Alliance, Munich, Germany
| | - Xiang Li
- Department of Biomedical Imaging and Image-guided Therapy, Division of Nuclear Medicine, Medical University of Vienna, Währinger Gürtel 18-20, 1090, Vienna, Austria
| | - Simon Lindner
- Department of Nuclear Medicine, University Hospital of Munich, LMU Munich, Munich, Germany
| | - Matthias Brendel
- Department of Nuclear Medicine, University Hospital of Munich, LMU Munich, Munich, Germany
| | - Peter Bartenstein
- Department of Nuclear Medicine, University Hospital of Munich, LMU Munich, Munich, Germany
| | - Steffen Massberg
- Department of Cardiology, University Hospital of Munich, LMU Munich, Munich, Germany
- German Centre for Cardiovascular Research (DZHK), Partner Site Munich Heart Alliance, Munich, Germany
| | - Stefan Brunner
- Department of Cardiology, University Hospital of Munich, LMU Munich, Munich, Germany
| | - Sebastian Lehner
- Department of Nuclear Medicine, University Hospital of Munich, LMU Munich, Munich, Germany
- Ambulatory Healthcare Center Dr. Neumaier & Colleagues, Radiology, Nuclear Medicine, Radiation Therapy, Regensburg, Germany
| | - Marcus Hacker
- Department of Biomedical Imaging and Image-guided Therapy, Division of Nuclear Medicine, Medical University of Vienna, Währinger Gürtel 18-20, 1090, Vienna, Austria.
| | - Bruno C Huber
- Department of Cardiology, University Hospital of Munich, LMU Munich, Munich, Germany
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8
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Fischer M, Zacherl MJ, Weckbach L, Paintmayer L, Weinberger T, Stark K, Massberg S, Bartenstein P, Lehner S, Schulz C, Todica A. Cardiac 18F-FDG Positron Emission Tomography: An Accurate Tool to Monitor In vivo Metabolic and Functional Alterations in Murine Myocardial Infarction. Front Cardiovasc Med 2021; 8:656742. [PMID: 34113662 PMCID: PMC8185215 DOI: 10.3389/fcvm.2021.656742] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 05/04/2021] [Indexed: 12/28/2022] Open
Abstract
Cardiac monitoring after murine myocardial infarction, using serial non-invasive cardiac 18F-FDG positron emissions tomography (PET) represents a suitable and accurate tool for in vivo studies. Cardiac PET imaging enables tracking metabolic alterations, heart function parameters and provides correlations of the infarct size to histology. ECG-gated 18F-FDG PET scans using a dedicated small-animal PET scanner were performed in mice at baseline, 3, 14, and 30 days after myocardial infarct (MI) by permanent ligation of the left anterior descending (LAD) artery. The percentage of the injected dose per gram (%ID/g) in the heart, left ventricular metabolic volume (LVMV), myocardial defect, and left ventricular function parameters: end-diastolic volume (EDV), end-systolic volume (ESV), stroke volume (SV), and the ejection fraction (EF%) were estimated. PET assessment of the defect positively correlates with post-infarct histology at 3 and 30 days. Infarcted murine hearts show an immediate decrease in LVMV and an increase in %ID/g early after infarction, diminishing in the remodeling process. This study of serial cardiac PET scans provides insight for murine myocardial infarction models by novel infarct surrogate parameters. It depicts that serial PET imaging is a valid, accurate, and multimodal non-invasive assessment.
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Affiliation(s)
- Maximilian Fischer
- Medizinische Klinik und Poliklinik I, Klinikum der Universität München, Ludwig-Maximilians-Universität, Munich, Germany.,DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany
| | - Mathias J Zacherl
- Department of Nuclear Medicine, University Hospital, Ludwig-Maximilians-Universität (LMU) Munich, Munich, Germany
| | - Ludwig Weckbach
- Medizinische Klinik und Poliklinik I, Klinikum der Universität München, Ludwig-Maximilians-Universität, Munich, Germany.,DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany
| | - Lisa Paintmayer
- Department of Nuclear Medicine, University Hospital, Ludwig-Maximilians-Universität (LMU) Munich, Munich, Germany
| | - Tobias Weinberger
- Medizinische Klinik und Poliklinik I, Klinikum der Universität München, Ludwig-Maximilians-Universität, Munich, Germany.,DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany
| | - Konstantin Stark
- Medizinische Klinik und Poliklinik I, Klinikum der Universität München, Ludwig-Maximilians-Universität, Munich, Germany.,DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany
| | - Steffen Massberg
- Medizinische Klinik und Poliklinik I, Klinikum der Universität München, Ludwig-Maximilians-Universität, Munich, Germany.,DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany
| | - Peter Bartenstein
- Department of Nuclear Medicine, University Hospital, Ludwig-Maximilians-Universität (LMU) Munich, Munich, Germany
| | - Sebastian Lehner
- Department of Nuclear Medicine, University Hospital, Ludwig-Maximilians-Universität (LMU) Munich, Munich, Germany.,Ambulatory Healthcare Center Dr. Neumaier & Colleagues, Radiology, Nuclear Medicine, Radiation Therapy, Regensburg, Germany
| | - Christian Schulz
- Medizinische Klinik und Poliklinik I, Klinikum der Universität München, Ludwig-Maximilians-Universität, Munich, Germany.,DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany
| | - Andrei Todica
- Department of Nuclear Medicine, University Hospital, Ludwig-Maximilians-Universität (LMU) Munich, Munich, Germany
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9
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Fischer M, Zacherl MJ, Weinberger T, Weckbach L, Huber B, Schulz C, Massberg S, Bartenstein P, Lehner S, Todica A. Comparison of metabolic and functional parameters using cardiac 18F-FDG-PET in early to mid-adulthood male and female mice. EJNMMI Res 2021; 11:7. [PMID: 33464447 PMCID: PMC7815863 DOI: 10.1186/s13550-021-00748-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Accepted: 01/05/2021] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND In this descriptive study of male and female mice at different weeks of age, we use serial non-invasive cardiac 18F-FDG-PET scans to follow up on metabolic alterations, heart function parameters, and the ECG of both sexes in early to mid-adulthood. METHODS ECG-gated 18F-FDG-PET scans were performed in mice on 10, 14, and 18 weeks of age, using a dedicated small-animal PET scanner. The percentage of the injected activity per gram (%IA/g) in the heart, left ventricular metabolic volume (LVMV), myocardial viability and left ventricular function parameters: end-diastolic (EDV), end-systolic (ESV), stroke volume (SV), and the ejection fraction (EF%) were estimated. RESULTS Compared to their age-matched female counterpart, male mice showed a constant increase in LVMV and ventricular volume during the follow-up. In contrast, female mice remain stable after ten weeks of age. Furthermore, male mice showed lower heart rates, positive correlation with cardiac %IA/g, and negative correlation with LVMV. CONCLUSION In this study of serial cardiac PET scans, we provide insight for basic murine research models, showing that mice gender and age show distinct cardiac metabolisms. These physiologic alterations need to be considered when planning in vivo injury models to avoid potential pitfalls.
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Affiliation(s)
- Maximilian Fischer
- Medizinische Klinik und Poliklinik I, Klinikum der Universität München, Ludwig-Maximilians-Universität, Marchioninistrasse 15, 81377, Munich, Germany
| | - Mathias J Zacherl
- Department of Nuclear Medicine, University Hospital, LMU Munich, Marchioninistr. 15, 81377, Munich, Germany
| | - Tobias Weinberger
- Medizinische Klinik und Poliklinik I, Klinikum der Universität München, Ludwig-Maximilians-Universität, Marchioninistrasse 15, 81377, Munich, Germany
| | - Ludwig Weckbach
- Medizinische Klinik und Poliklinik I, Klinikum der Universität München, Ludwig-Maximilians-Universität, Marchioninistrasse 15, 81377, Munich, Germany
| | - Bruno Huber
- Medizinische Klinik und Poliklinik I, Klinikum der Universität München, Ludwig-Maximilians-Universität, Marchioninistrasse 15, 81377, Munich, Germany
| | - Christian Schulz
- Medizinische Klinik und Poliklinik I, Klinikum der Universität München, Ludwig-Maximilians-Universität, Marchioninistrasse 15, 81377, Munich, Germany
| | - Steffen Massberg
- Medizinische Klinik und Poliklinik I, Klinikum der Universität München, Ludwig-Maximilians-Universität, Marchioninistrasse 15, 81377, Munich, Germany
| | - Peter Bartenstein
- Department of Nuclear Medicine, University Hospital, LMU Munich, Marchioninistr. 15, 81377, Munich, Germany
| | - Sebastian Lehner
- Department of Nuclear Medicine, University Hospital, LMU Munich, Marchioninistr. 15, 81377, Munich, Germany.,Ambulatory Healthcare Center Dr. Neumaier & Colleagues, Radiology, Nuclear Medicine, Radiation Therapy, Regensburg, Germany
| | - Andrei Todica
- Department of Nuclear Medicine, University Hospital, LMU Munich, Marchioninistr. 15, 81377, Munich, Germany.
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10
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Todica A, Beetz NL, Günther L, Zacherl MJ, Grabmaier U, Huber B, Bartenstein P, Brunner S, Lehner S. Monitoring of Cardiac Remodeling in a Mouse Model of Pressure-Overload Left Ventricular Hypertrophy with [ 18F]FDG MicroPET. Mol Imaging Biol 2019; 20:268-274. [PMID: 28852941 DOI: 10.1007/s11307-017-1114-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
PURPOSE This study aims to analyze the left ventricular function parameters, scar load, and hypertrophy in a mouse model of pressure-overload left ventricular (LV) hypertrophy over the course of 8 weeks using 2-deoxy-2-[18F]fluoro-D-glucose ([18F]FDG) micro-positron emission tomography (microPET) imaging. PROCEDURES LV hypertrophy was induced in C57BL/6 mice by transverse aortic constriction (TAC). Myocardial hypertrophy developed after 2-4 weeks. ECG-gated microPET scans with [18F]FDG were performed 4 and 8 weeks after surgery. The extent of fibrosis was measured by histopathologic analysis. LV function parameters and scar load were calculated using QGS®/QPS®. LV metabolic volume (LVMV) and percentage injected dose per gram were estimated by threshold-based analysis. RESULTS The fibrotic tissue volume increased significantly from 4 to 8 weeks after TAC (1.67 vs. 3.91 mm3; P = 0.044). There was a significant increase of the EDV (4 weeks: 54 ± 15 μl, 8 weeks: 79 ± 32 μl, P < 0.01) and LVMV (4 weeks: 222 ± 24 μl, 8 weeks: 276 ± 52 μl, P < 0.01) as well as a significant decrease of the LVEF (4 weeks: 56 ± 17 %, 8 weeks: 44 ± 20 %, P < 0.01). The increase of LVMV had a high predictive value regarding the amount of ex vivo measured fibrotic tissue (R = 0.905, P < 0.001). The myocardial metabolic defects increased within 4 weeks (P = 0.055) but only moderately correlated with the fibrosis volume (R = 0.502, P = 0.021). The increase in end-diastolic volume showed a positive correlation with the fibrosis at 8 weeks (R = 0.763, P = 0.017). CONCLUSIONS [18F]FDG-PET is applicable for serial in vivo monitoring of the TAC mouse model. Myocardial hypertrophy, the dilation of the left ventricle, and the decrease in LVEF could be reliably quantified over time, as well as the developing localized scar. The increase in volume over time is predictive of a high fibrosis load.
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Affiliation(s)
- Andrei Todica
- Department of Nuclear Medicine, University Hospital, LMU Munich, Munich, Germany.
| | - Nick L Beetz
- Medical Department I-Cardiology, University Hospital, LMU Munich, Munich, Germany
| | - Lisa Günther
- Department of Nuclear Medicine, University Hospital, LMU Munich, Munich, Germany
| | - Mathias J Zacherl
- Department of Nuclear Medicine, University Hospital, LMU Munich, Munich, Germany
| | - Ulrich Grabmaier
- Medical Department I-Cardiology, University Hospital, LMU Munich, Munich, Germany
| | - Bruno Huber
- Medical Department I-Cardiology, University Hospital, LMU Munich, Munich, Germany
| | - Peter Bartenstein
- Department of Nuclear Medicine, University Hospital, LMU Munich, Munich, Germany
| | - Stefan Brunner
- Medical Department I-Cardiology, University Hospital, LMU Munich, Munich, Germany
| | - Sebastian Lehner
- Department of Nuclear Medicine, University Hospital, LMU Munich, Munich, Germany.,Ambulatory Healthcare Center Dr. Neumaier & Colleagues, Radiology, Nuclear Medicine, Radiation Therapy, Regensburg, Germany
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11
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Lijuan S, Shu L, Yonghua Z, Qingmin X, Chungang Z, Lan L. Effect of Shenqi Yangxin decoction on high mobility group box 1 and inflammatory signal pathway in a rat model of dilated cardiomyopathy. J TRADIT CHIN MED 2018. [DOI: 10.1016/s0254-6272(18)30985-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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12
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Shen LJ, Lu S, Zhou YH, Li L, Xing QM, Xu YL. Developing a rat model of dilated cardiomyopathy with improved survival. J Zhejiang Univ Sci B 2017; 17:975-983. [PMID: 27921402 DOI: 10.1631/jzus.b1600257] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
To compare the continuous infusion and intermittent bolus injection administration protocols of doxorubicin (Dox) under the same cumulative dose (12 mg/kg), and establish a rat dilated cardiomyopathy model with improved survival, a total of 150 Sprague-Dawley (SD) rats were divided into three groups: a control group, administered with normal saline; a Dox 1 group, administration twice a week at 1 mg/kg; a Dox 2, administration once a week at 2 mg/kg. Mortality rates in the Dox 1 and Dox 2 groups were 22% and 48%, respectively (P<0.05). As shown by echocardiography, both Dox groups exhibited significant chamber dilatation and reduced cardiac function (all P<0.05 vs. control). Plasma brain natriuretic peptide and C-reactive protein concentrations were significantly increased (P<0.05) with both Dox regimens. The concentrations of Caspase-3 in myocardial tissues of rats significantly increased in both doxorubicin regimens. Myocardial metabolism imaging by histology and 18F-fluoro-deoxyglucose-positron emission tomography (18FDG-PET) both revealed decreased myocardial viability and necrosis, and even interstitial fibrosis, in left ventricles (LVs) in both Dox groups. Serum creatinine and aspartate aminotransferase concentrations were significantly higher in the Dox 2 model than in the Dox 1 model. Doxorubicin given at both regimens induced dilated cardiomyopathy, while its administration at lower doses with more frequent infusions reduced the mortality rate.
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Affiliation(s)
- Li-Juan Shen
- Wuxi Hospital of Traditional Chinese Medicine, Wuxi Hospital Affiliated to Nanjing University of Chinese Medicine, Wuxi 214071, China
| | - Shu Lu
- Wuxi Hospital of Traditional Chinese Medicine, Wuxi Hospital Affiliated to Nanjing University of Chinese Medicine, Wuxi 214071, China
| | - Yong-Hua Zhou
- Jiangsu Institute of Parasitic Diseases, Key Laboratory on Technology for Parasitic Disease Prevention and Control, Ministry of Health, Jiangsu Provincial Key Laboratory on Molecular Biology of Parasites, Jiangsu Provincial Key Subject on Parasitic Diseases, Wuxi 214064, China
| | - Lan Li
- Department of Ultrasonography, Wuxi Hospital of Traditional Chinese Medicine, Wuxi Hospital Affiliated to Nanjing University of Chinese Medicine, Wuxi 214071, China
| | - Qing-Min Xing
- Wuxi Hospital of Traditional Chinese Medicine, Wuxi Hospital Affiliated to Nanjing University of Chinese Medicine, Wuxi 214071, China
| | - Yong-Liang Xu
- Jiangsu Institute of Parasitic Diseases, Key Laboratory on Technology for Parasitic Disease Prevention and Control, Ministry of Health, Jiangsu Provincial Key Laboratory on Molecular Biology of Parasites, Jiangsu Provincial Key Subject on Parasitic Diseases, Wuxi 214064, China
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13
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Helluy X, Sauter M, Ye YX, Lykowsky G, Kreutner J, Yilmaz A, Jahns R, Boivin V, Kandolf R, Jakob PM, Hiller KH, Klingel K. In vivo T2* weighted MRI visualizes cardiac lesions in murine models of acute and chronic viral myocarditis. PLoS One 2017; 12:e0172084. [PMID: 28264039 PMCID: PMC5338786 DOI: 10.1371/journal.pone.0172084] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2015] [Accepted: 01/31/2017] [Indexed: 12/13/2022] Open
Abstract
Objective Acute and chronic forms of myocarditis are mainly induced by virus infections. As a consequence of myocardial damage and inflammation dilated cardiomyopathy and chronic heart failure may develop. The gold standard for the diagnosis of myocarditis is endomyocardial biopsies which are required to determine the etiopathogenesis of cardiac inflammatory processes. However, new non-invasive MRI techniques hold great potential in visualizing cardiac non-ischemic inflammatory lesions at high spatial resolution, which could improve the investigation of the pathophysiology of viral myocarditis. Results Here we present the discovery of a novel endogenous T2* MRI contrast of myocardial lesions in murine models of acute and chronic CVB3 myocarditis. The evaluation of infected hearts ex vivo and in vivo by 3D T2w and T2*w MRI allowed direct localization of virus-induced myocardial lesions without any MRI tracer or contrast agent. T2*w weighted MRI is able to detect both small cardiac lesions of acute myocarditis and larger necrotic areas at later stages of chronic myocarditis, which was confirmed by spatial correlation of MRI hypointensity in myocardium with myocardial lesions histologically. Additional in vivo and ex vivo MRI analysis proved that the contrast mechanism was due to a strong paramagnetic tissue alteration in the vicinity of myocardial lesions, effectively pointing towards iron deposits as the primary contributor of contrast. The evaluation of the biological origin of the MR contrast by specific histological staining and transmission electron microscopy revealed that impaired iron metabolism primarily in mitochondria caused iron deposits within necrotic myocytes, which induces strong magnetic susceptibility in myocardial lesions and results in strong T2* contrast. Conclusion This T2*w MRI technique provides a fast and sensitive diagnostic tool to determine the patterns and the severity of acute and chronic enteroviral myocarditis and the precise localization of tissue damage free of MR contrast agents.
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Affiliation(s)
- Xavier Helluy
- Department of Experimental Physics V, Institute of Physics, University of Wuerzburg, Wuerzburg, Germany
| | - Martina Sauter
- Department of Molecular Pathology, Institute for Pathology and Neuropathology, University Hospital Tuebingen, Tuebingen, Germany
| | - Yu-Xiang Ye
- Department of Experimental Physics V, Institute of Physics, University of Wuerzburg, Wuerzburg, Germany
- Center for Systems Biology, Massachusetts General Hospital and Harvard Medical School, Boston, United States of America
| | - Gunthard Lykowsky
- Research Center Magnetic-Resonance-Bavaria (MRB), Wuerzburg, Germany
| | - Jakob Kreutner
- Research Center Magnetic-Resonance-Bavaria (MRB), Wuerzburg, Germany
| | - Ali Yilmaz
- Department of Cardiology and Angiology, University Hospital Münster, Münster, Germany
| | - Roland Jahns
- Comprehensive Heart Failure Centre (CHFC) and Interdisziplinary Bank of Biomaterials and Data (ibdw), University Hospital of Würzburg, Würzburg, Germany
| | - Valerie Boivin
- Institute of Pharmacology and Toxicology, University of Würzburg, Würzburg, Germany
| | - Reinhard Kandolf
- Department of Molecular Pathology, Institute for Pathology and Neuropathology, University Hospital Tuebingen, Tuebingen, Germany
| | - Peter M. Jakob
- Research Center Magnetic-Resonance-Bavaria (MRB), Wuerzburg, Germany
| | - Karl-Heinz Hiller
- Research Center Magnetic-Resonance-Bavaria (MRB), Wuerzburg, Germany
- Fraunhofer Institute for Integrated Circuits, Magnetic Resonance and X-Ray Imaging Department, Würzburg, Germany
| | - Karin Klingel
- Department of Molecular Pathology, Institute for Pathology and Neuropathology, University Hospital Tuebingen, Tuebingen, Germany
- * E-mail:
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14
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Zou M, Wang F, Gao R, Wu J, Ou Y, Chen X, Wang T, Zhou X, Zhu W, Li P, Qi LW, Jiang T, Wang W, Li C, Chen J, He Q, Chen Y. Autophagy inhibition of hsa-miR-19a-3p/19b-3p by targeting TGF-β R II during TGF-β1-induced fibrogenesis in human cardiac fibroblasts. Sci Rep 2016; 6:24747. [PMID: 27098600 PMCID: PMC4838850 DOI: 10.1038/srep24747] [Citation(s) in RCA: 77] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2015] [Accepted: 03/31/2016] [Indexed: 02/08/2023] Open
Abstract
Transforming growth factor-β1 (TGF-β1) plays an important role on fibrogenesis in heart disease. MicroRNAs have exhibited as crucial regulators of cardiac homeostasis and remodeling in various heart diseases. MiR-19a-3p/19b-3p expresses with low levels in the plasma of heart failure patients. The purpose of our study is to determine the role of MiR-19a-3p/19b-3p in regulating autophagy-mediated fibrosis of human cardiac fibroblasts. We elucidate our hypothesis in clinical samples and human cardiac fibroblasts (HCF) to provide valuable basic information. TGF-β1 promotes collagen I α2 and fibronectin synthesis in HCF and that is paralleled by autophagic activation in these cells. Pharmacological inhibition of autophagy by 3-methyladenine decreases the fibrotic response, while autophagy induction of rapamycin increases the response. BECN1 knockdown and Atg5 over-expression either inhibits or enhances the fibrotic effect of TGF-β1 in experimental HCF. Furthermore, miR-19a-3p/19b-3p mimics inhibit epithelial mesenchymal transition (EMT) and extracellular matrix (ECM) prodution and invasion of HCF. Functional studies suggest that miR-19a-3p/19b-3p inhibits autophagy of HCF through targeting TGF-β R II mRNA. Moreover, enhancement of autophagy rescues inhibition effect of miR-19a-3p/19b-3p on Smad 2 and Akt phosphorylation through TGF-β R II signaling. Our study uncovers a novel mechanism that miR-19a-3p/19b-3p inhibits autophagy-mediated fibrogenesis by targeting TGF-β R II.
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Affiliation(s)
- Meijuan Zou
- Department of Pharmacology, School of Basic Medical Sciences, Nanjing Medical University, 140 Hanzhong Road, Nanjing 210029, P.R. China
| | - Fang Wang
- Department of Cardiology, First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing 210029, P.R. China
| | - Rui Gao
- Department of Pharmacology, School of Basic Medical Sciences, Nanjing Medical University, 140 Hanzhong Road, Nanjing 210029, P.R. China
| | - Jingjing Wu
- Department Of Nephrology, First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing 210029, P.R. China
| | - Yingwei Ou
- Department of Pharmacology, School of Basic Medical Sciences, Nanjing Medical University, 140 Hanzhong Road, Nanjing 210029, P.R. China
| | - Xuguan Chen
- Department of Pharmacology, School of Basic Medical Sciences, Nanjing Medical University, 140 Hanzhong Road, Nanjing 210029, P.R. China
| | - Tongshan Wang
- Department of Oncology, First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing 210029, P.R. China
| | - Xin Zhou
- Department of Oncology, First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing 210029, P.R. China
| | - Wei Zhu
- Department of Oncology, First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing 210029, P.R. China
| | - Ping Li
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China
| | - Lian-Wen Qi
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China
| | - Ting Jiang
- Emergency Center, First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing 210029, P.R. China
| | - Weiwei Wang
- Emergency Center, First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing 210029, P.R. China
| | - Chunyu Li
- Emergency Center, First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing 210029, P.R. China
| | - Jun Chen
- Emergency Center, First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing 210029, P.R. China
| | - Qifang He
- Emergency Center, First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing 210029, P.R. China
| | - Yan Chen
- Emergency Center, First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing 210029, P.R. China
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15
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Gross L, Paintmayer L, Lehner S, Brandl L, Brenner C, Grabmaier U, Huber B, Bartenstein P, Theiss HD, Franz WM, Massberg S, Todica A, Brunner S. FDG-PET reveals improved cardiac regeneration and attenuated adverse remodelling following Sitagliptin + G-CSF therapy after acute myocardial infarction. Eur Heart J Cardiovasc Imaging 2015; 17:136-45. [PMID: 26420287 DOI: 10.1093/ehjci/jev237] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Accepted: 08/31/2015] [Indexed: 12/31/2022] Open
Abstract
AIMS Dual therapy comprising G-CSF for mobilization of bone marrow-derived progenitor cells (BMPCs), with simultaneous pharmacological inhibition of dipeptidylpeptidase-IV for enhanced myocardial recruitment of circulating BMPC via the SDF-1α/CXCR4-axis, has been shown to improve survival after acute myocardial infarction (AMI). Using an innovative method to provide non-invasive serial in vivo measurements and information on metabolic processes, we aimed to substantiate the possible effects of this therapeutic concept on cardiac remodelling after AMI using 2-deoxy-2-[18F]fluoro-d-glucose positron emission tomography (FDG-PET). METHODS AND RESULTS AMI was induced in C57BL/6 mice by performing surgical ligation of the left anterior descending artery in these mice. Animals were then treated with granulocyte-colony stimulating factor + Sitagliptin (GS) or placebo for a duration of 5 days following AMI. From serial PET scans, we verified that the infarct size in GS-treated mice (n = 13) was significantly reduced at Day 30 after AMI when compared with the mice receiving placebo (n = 10). Analyses showed a normalized FDG uptake on Day 6 in GS-treated mice, indicating an attenuation of the cardiac inflammatory response to AMI in treated animals. Furthermore, flow cytometry showed a significant increase in the anti-inflammatory M2-macrophages subpopulation in GS-treated animals. In comparing GS treated with placebo animals, those receiving GS-therapy showed a reduction in myocardial hypertrophy and left ventricular dilatation, which indicates the beneficial effect of GS treatment on cardiac remodelling. Remarkably, flow cytometry and immunohistochemistry showed an increase of myocardial c-kit positive cells in treated mice (n = 12 in both groups). CONCLUSION Using the innovative method of micro-PET for non-invasive serial in vivo measurements of metabolic myocardial processes in mice, we were able to provide mechanistic evidence that GS therapy improves cardiac regeneration and reduces adverse remodelling after AMI.
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Affiliation(s)
- Lisa Gross
- Department of Cardiology, Ludwig-Maximilians-University, Marchioninistrasse 15, Munich 81377, Germany
| | - Lisa Paintmayer
- Department of Cardiology, Ludwig-Maximilians-University, Marchioninistrasse 15, Munich 81377, Germany
| | - Sebastian Lehner
- Department of Nuclear Medicine, Ludwig-Maximilians-University, Munich, Germany
| | - Lydia Brandl
- Institute of Pathology, Ludwig-Maximilians-University, Munich, Germany
| | - Christoph Brenner
- Department of Internal Medicine III, Medical University of Innsbruck, Innsbruck, Austria
| | - Ulrich Grabmaier
- Department of Cardiology, Ludwig-Maximilians-University, Marchioninistrasse 15, Munich 81377, Germany
| | - Bruno Huber
- Department of Cardiology, Ludwig-Maximilians-University, Marchioninistrasse 15, Munich 81377, Germany
| | - Peter Bartenstein
- Department of Nuclear Medicine, Ludwig-Maximilians-University, Munich, Germany
| | - Hans-Diogenes Theiss
- Department of Cardiology, Ludwig-Maximilians-University, Marchioninistrasse 15, Munich 81377, Germany
| | - Wolfgang-Michael Franz
- Department of Internal Medicine III, Medical University of Innsbruck, Innsbruck, Austria
| | - Steffen Massberg
- Department of Cardiology, Ludwig-Maximilians-University, Marchioninistrasse 15, Munich 81377, Germany
| | - Andrei Todica
- Department of Nuclear Medicine, Ludwig-Maximilians-University, Munich, Germany
| | - Stefan Brunner
- Department of Cardiology, Ludwig-Maximilians-University, Marchioninistrasse 15, Munich 81377, Germany
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16
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Lehner S, Todica A, Vanchev Y, Uebleis C, Wang H, Herrler T, Wängler C, Cumming P, Böning G, Franz WM, Bartenstein P, Hacker M, Brunner S. In vivo monitoring of parathyroid hormone treatment after myocardial infarction in mice with [68Ga]annexin A5 and [18F]fluorodeoxyglucose positron emission tomography. Mol Imaging 2015; 13. [PMID: 25249170 DOI: 10.2310/7290.2014.00035] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
[68Ga]Annexin A5 positron emission tomography (PET) reveals the externalization of phosphatidylserine as a surrogate marker for apoptosis. We tested this technique for therapy monitoring in a murine model of myocardial infarction (MI) including parathyroid hormone (PTH) treatment. MI was induced in mice, and they were assigned to the saline or the PTH group. On day 2, they received [68Ga]annexin A5 PET or histofluorescence TUNEL staining. Mice had 2-deoxy-2-[18F]fluoro-d-glucose (FDG)-PET examinations on days 6 and 30 for calculation of the left ventricular ejection fraction and infarct area. [68Ga]Annexin A5 uptake was 7.4 ± 1.3 %ID/g within the infarction for the controls and 4.5 ± 1.9 %ID/g for the PTH group (p = .013). TUNEL staining revealed significantly more apoptotic cells in the infarct area on day 2 in the controls (64 ± 9%) compared to the treatment group (52 ± 4%; p = .045). FDG-PET revealed a significant decrease in infarct size in the treatment group and an increase in the controls. Examinations of left ventricular ejection fraction on days 6 and 30 did not reveal treatment effects. [68Ga]Annexin A5 PET can detect the effects of PTH treatment as a marker of apoptosis 2 days after MI; ex vivo examination confirmed significant rescue of myocardiocytes. FDG-PET showed a small but significant reduction in infarct size but no functional improvement.
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17
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Todica A, Zacherl MJ, Wang H, Böning G, Jansen NL, Wängler C, Bartenstein P, Kreissl MC, Hacker M, Brunner S, Lehner S. In-vivo monitoring of erythropoietin treatment after myocardial infarction in mice with [⁶⁸Ga]Annexin A5 and [¹⁸F]FDG PET. J Nucl Cardiol 2014; 21:1191-9. [PMID: 25189144 DOI: 10.1007/s12350-014-9987-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2014] [Accepted: 08/13/2014] [Indexed: 12/15/2022]
Abstract
BACKGROUND Several studies substantiate the cardioprotective effects of erythropoietin (EPO). Our goal was to quantify the effects of EPO treatment on the early expression of the apoptosis marker phosphatidylserine as well as on the left ventricular volumes and function by means of small animal PET. METHODS AND RESULTS Myocardial infarction (MI) was induced in C57BL/6 mice. Animals were assigned to saline or EPO groups and underwent Annexin PET (day 2) and gated FDG PET (days 6 and 30). Annexin uptake was significantly higher in the infarction than in remote myocardium, with no differences between treatment groups. Infarct size showed a slight decrease in the EPO group and a slight increase in the controls, which did not reach statistical significance. Follow-up analyses revealed a significant increase of end-diastolic and end-systolic volumes in the EPO group, in which a stable left ventricular ejection fraction (LVEF) was maintained. CONCLUSION We find that deleterious effects of EPO can outweigh cardioprotective effects. The present EPO treatment did not significantly reduce apoptosis after MI, but seemingly provoked significant myocardial dilation while maintaining a stable LVEF. Molecular mechanisms of EPO treatment may need further elucidation to optimize therapy regimens.
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Affiliation(s)
- Andrei Todica
- Department of Nuclear Medicine, Klinikum Grosshadern, Ludwig-Maximilians-University, Munich, Germany
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18
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Grabmaier U, Theiss HD, Keithahn A, Kreiner J, Brenner C, Huber B, von der Helm C, Gross L, Klingel K, Franz WM, Brunner S. The role of 1.5 tesla MRI and anesthetic regimen concerning cardiac analysis in mice with cardiomyopathy. PLoS One 2014; 9:e94615. [PMID: 24747816 PMCID: PMC3991627 DOI: 10.1371/journal.pone.0094615] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2013] [Accepted: 03/18/2014] [Indexed: 02/07/2023] Open
Abstract
Accurate assessment of left ventricular function in rodent models is essential for the evaluation of new therapeutic approaches for cardiac diseases. In our study, we provide new insights regarding the role of a 1.5 Tesla (T) magnetic resonance imaging (MRI) device and different anesthetic regimens on data validity. As dedicated small animal MRI and echocardiographic devices are not broadly available, we evaluated whether monitoring cardiac function in small rodents with a clinical 1.5 T MRI device is feasible. On a clinical electrocardiogram (ECG) synchronized 1.5 T MRI scanner we therefore studied cardiac function parameters of mice with chronic virus-induced cardiomyopathy. Thus, reduced left ventricular ejection fraction (LVEF) could be verified compared to healthy controls. However, our results showed a high variability. First, anesthesia with medetomidine, midazolam and fentanyl (MMF) led to depressed cardiac function parameters and more variability than isoflurane gas inhalation anesthesia, especially at high concentrations. Furthermore, calculation of an average ejection fraction value from sequenced scans significantly reduced the variance of the results. To sum up, we introduce the clinical 1.5 T MRI device as a new tool for effective analysis of left ventricular function in mice with cardiomyopathy. Besides, we suggest isoflurane gas inhalation anesthesia at high concentrations for variance reduction and recommend calculation of an average ejection fraction value from multiple sequenced MRI scans to provide valid data and a solid basis for further clinical testing.
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Affiliation(s)
- Ulrich Grabmaier
- Department of Internal Medicine I, Ludwig-Maximilians-University, Campus Grosshadern, Munich, Germany
| | - Hans D. Theiss
- Department of Internal Medicine I, Ludwig-Maximilians-University, Campus Grosshadern, Munich, Germany
| | - Alexandra Keithahn
- Department of Nuclear Medicine, Klinikum Rechts der Isar, Munich, Germany
| | - Julia Kreiner
- Department of Internal Medicine I, Ludwig-Maximilians-University, Campus Grosshadern, Munich, Germany
| | - Christoph Brenner
- Department of Internal Medicine I, Ludwig-Maximilians-University, Campus Grosshadern, Munich, Germany
| | - Bruno Huber
- Department of Internal Medicine I, Ludwig-Maximilians-University, Campus Grosshadern, Munich, Germany
| | | | - Lisa Gross
- Department of Internal Medicine I, Ludwig-Maximilians-University, Campus Grosshadern, Munich, Germany
| | - Karin Klingel
- Department of Molecular Pathology, University of Tübingen, Tübingen, Germany
| | - Wolfgang-M. Franz
- Department of Internal Medicine I, Ludwig-Maximilians-University, Campus Grosshadern, Munich, Germany
| | - Stefan Brunner
- Department of Internal Medicine I, Ludwig-Maximilians-University, Campus Grosshadern, Munich, Germany
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Todica A, Brunner S, Böning G, Lehner S, Nekolla SG, Wildgruber M, Übleis C, Wängler C, Sauter M, Klingel K, Cumming P, Bartenstein P, Schirrmacher R, Franz WM, Hacker M. [68Ga]-albumin-PET in the monitoring of left ventricular function in murine models of ischemic and dilated cardiomyopathy: comparison with cardiac MRI. Mol Imaging Biol 2014; 15:441-9. [PMID: 23408338 DOI: 10.1007/s11307-013-0618-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
PURPOSE The purpose of this study is to evaluate left ventricular functional parameters in healthy mice and in different murine models of cardiomyopathy with the novel blood pool (BP) positron emission tomography (PET) tracer [68Ga]-albumin. PROCEDURES ECG-gated microPET examinations were obtained in healthy mice, and mice with dilative (DCM) and ischemic cardiomyopathy (ICM) using the novel BP tracer [68Ga]-albumin (AlbBP), as well as [18F]-FDG microPET. Cine-magnetic resonance imaging (MRI) examination performed on a clinical 1.5-T MRI provided the reference standard measurements. RESULTS When considering the combined group of healthy controls, DCM and ICM AlbBP-PET significantly overestimated the magnitudes of EDV (AlbBP, 181±86 μl; cine-MRI, 125±80 μl; P<0.001) and ESV (AlbBP, 136±92 μl; cine-MRI, 96±77 μl; P<0.001), whereas the EF (AlbBP, 31±16%; cine-MRI, 33±21%; P=0.910) matched closely to cine-MRI results, as did findings with [18F]-FDG. High correlations were found between the measured cardiac parameters (EDV: R=0.978, ESV: R=0.989, and LVEF: R=0.992). CONCLUSIONS Measuring left ventricular function in mice with [68Ga]-albumin BP PET is feasible and showed a high correlation compared to cine-MRI, which was used as a reference standard.
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Affiliation(s)
- Andrei Todica
- Department of Nuclear Medicine, Ludwig-Maximilians-University, Klinikum Grosshadern, Munich, Germany
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Böning G, Todica A, Vai A, Lehner S, Xiong G, Mille E, Ilhan H, la Fougère C, Bartenstein P, Hacker M. Erroneous cardiac ECG-gated PET list-mode trigger events can be retrospectively identified and replaced by an offline reprocessing approach: first results in rodents. Phys Med Biol 2013; 58:7937-59. [PMID: 24165267 DOI: 10.1088/0031-9155/58/22/7937] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The assessment of left ventricular function, wall motion and myocardial viability using electrocardiogram (ECG)-gated [(18)F]-FDG positron emission tomography (PET) is widely accepted in human and in preclinical small animal studies. The nonterminal and noninvasive approach permits repeated in vivo evaluations of the same animal, facilitating the assessment of temporal changes in disease or therapy response. Although well established, gated small animal PET studies can contain erroneous gating information, which may yield to blurred images and false estimation of functional parameters. In this work, we present quantitative and visual quality control (QC) methods to evaluate the accuracy of trigger events in PET list-mode and physiological data. Left ventricular functional analysis is performed to quantify the effect of gating errors on the end-systolic and end-diastolic volumes, and on the ejection fraction (EF). We aim to recover the cardiac functional parameters by the application of the commonly established heart rate filter approach using fixed ranges based on a standardized population. In addition, we propose a fully reprocessing approach which retrospectively replaces the gating information of the PET list-mode file with appropriate list-mode decoding and encoding software. The signal of a simultaneously acquired ECG is processed using standard MATLAB vector functions, which can be individually adapted to reliably detect the R-peaks. Finally, the new trigger events are inserted into the PET list-mode file. A population of 30 mice with various health statuses was analyzed and standard cardiac parameters such as mean heart rate (119 ms ± 11.8 ms) and mean heart rate variability (1.7 ms ± 3.4 ms) derived. These standard parameter ranges were taken into account in the QC methods to select a group of nine optimal gated and a group of eight sub-optimal gated [(18)F]-FDG PET scans of mice from our archive. From the list-mode files of the optimal gated group, we randomly deleted various fractions (5% to 60%) of contained trigger events to generate a corrupted group. The filter approach was capable to correct the corrupted group and yield functional parameters with no significant difference to the optimal gated group. We successfully demonstrated the potential of the fully reprocessing approach by applying it to the sub-optimal group, where the functional parameters were significantly improved after reprocessing (mean EF from 41% ± 16% to 60% ± 13%). When applied to the optimal gated group the fully reprocessing approach did not alter the functional parameters significantly (mean EF from 64% ± 8% to 64 ± 7%). This work presents methods to determine and quantify erroneous gating in small animal gated [(18)F]-FDG PET scans. We demonstrate the importance of a quality check for cardiac triggering contained in PET list-mode data and the benefit of optionally reprocessing the fully recorded physiological information to retrospectively modify or fully replace the cardiac triggering in PET list-mode data. We aim to provide a preliminary guideline of how to proceed in the presence of errors and demonstrate that offline reprocessing by filtering erroneous trigger events and retrospective gating by ECG processing is feasible. Future work will focus on the extension by additional QC methods, which may exploit the amplitude of trigger events and ECG signal by means of pattern recognition. Furthermore, we aim to transfer the proposed QC methods and the fully reprocessing approach to human myocardial PET/CT.
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Affiliation(s)
- Guido Böning
- Department of Nuclear Medicine, Ludwig-Maximilians University of Munich, Munich, Germany
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21
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Todica A, Böning G, Lehner S, Weidl E, Cumming P, Wängler C, Nekolla SG, Schwaiger M, Bartenstein P, Schirrmacher R, Hacker M. Positron emission tomography in the assessment of left ventricular function in healthy rats: a comparison of four imaging methods. J Nucl Cardiol 2013; 20:262-74. [PMID: 23255241 DOI: 10.1007/s12350-012-9663-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2012] [Accepted: 11/30/2012] [Indexed: 11/28/2022]
Abstract
OBJECTIVE To measure left ventricular (LV) function parameters in heart of healthy rats by three different positron emission tomography (PET) imaging techniques and by magnetic resonance imaging (MRI). METHODS ECG-gated microPET examinations were obtained in seven healthy rats with 2-deoxy-2-[(18)F]fluoro-D-glucose (FDG) for calculation of LV-function from the blood-pool phase of the dynamic recording (FDGBP), and also from the later myocardial uptake (FDGMyo). On subsequent days, we re-measured LV-function using the novel blood-pool tracer (68)Ga-albumin (AlbBP) and again by FDG (FDGMyo2) in one setting. Cine-MRI examination provided the reference standard measurement. RESULTS The mean LV ejection fractions (LVEF) were 56 ± 3 (FDGBP), 55 ± 3 (FDGMyo), 56 ± 3 (FDGMyo2), 57 ± 3 (AlbBP), and 57 ± 2 (MRI). There were good to excellent correlations found between the LVEF-values as compared to MRI reference standard for FDGBP (r = 0.71), FDGMyo (r = 0.86) and AlbBP (r = 0.88). Both of the blood-pool methods significantly overestimated the magnitudes of end-diastolic-volume and end-systolic-volume, whereas FDGMyo matched closely to the MRI reference standard. There was no significant bias for both blood-pool methods and a minor negative bias for FDGMyo regarding the LV ejection fraction (LVEF) when compared to cine-MRI results. There was no significant difference between the means of FDGMyo and FDGMyo2 (P = .50). CONCLUSIONS Relative to reference standard MRI measurements of LVEF, there was excellent agreement between PET-based measurements, notably for the novel blood-pool tracer (68)Ga-albumin.
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Affiliation(s)
- Andrei Todica
- Department of Nuclear Medicine, University of Munich, Marchioninistr. 15, 81377, Munich, Germany
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