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Rimmerman ET, Stacy MR. Applications of SPECT and PET Imaging for the Physiological Evaluation of Lower Extremity Peripheral Artery Disease. Int J Mol Sci 2024; 25:7474. [PMID: 39000580 PMCID: PMC11242786 DOI: 10.3390/ijms25137474] [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: 06/06/2024] [Revised: 07/01/2024] [Accepted: 07/04/2024] [Indexed: 07/16/2024] Open
Abstract
Peripheral artery disease (PAD) is classified as the narrowing or complete occlusion of the lower extremity arteries due to atherosclerosis. The risk of developing PAD increases with increased age and risk factors such as smoking, diabetes, hypertension, and hypercholesterolemia. Current treatment for PAD involves lifestyle and symptom management, statin and antiplatelet therapy, and/or surgical interventions to improve quality of life with varying efficacy. PAD affects approximately 5 to 6 percent of the global population, with this global burden continuing to increase. Despite the increase in disease prevalence, no gold standard functional diagnostic tool has been established for enabling early detection of the disease, appropriate medical management, and prediction of adverse outcomes for PAD patients. The visualization and quantification of the physiological consequences of PAD are possible by way of nuclear imaging: specifically, via scintigraphy, single-photon emission computed tomography (SPECT), and positron emission tomography (PET) imaging. These non-invasive modalities, when combined with targeted radionuclides, possess utility for detecting functional perfusion deficits and provide unique insight into muscle tissue- and vascular-level characteristics of PAD patients. This review discusses the past, present, and emerging applications of hybrid nuclear imaging modalities in the evaluation and monitoring of patients with PAD.
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Affiliation(s)
- Eleanor T. Rimmerman
- Interdisciplinary Biophysics Graduate Program, The Ohio State University, Columbus, OH 43210, USA
- Center for Regenerative Medicine, Research Institute at Nationwide Children’s Hospital, Columbus, OH 43215, USA
| | - Mitchel R. Stacy
- Interdisciplinary Biophysics Graduate Program, The Ohio State University, Columbus, OH 43210, USA
- Center for Regenerative Medicine, Research Institute at Nationwide Children’s Hospital, Columbus, OH 43215, USA
- Division of Vascular Diseases and Surgery, Department of Surgery, The Ohio State University College of Medicine, Columbus, OH 43210, USA
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2
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Kamel R, El Morsy EM, Elsherbiny ME, Nour-Eldin M. Chrysin promotes angiogenesis in rat hindlimb ischemia: Impact on PI3K/Akt/mTOR signaling pathway and autophagy. Drug Dev Res 2022; 83:1226-1237. [PMID: 35662099 DOI: 10.1002/ddr.21954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 05/01/2022] [Accepted: 05/17/2022] [Indexed: 11/09/2022]
Abstract
Limb ischemia occurs due to obstruction of blood perfusion to lower limbs, a manifestation that is associated with peripheral artery disease (PAD). Angiogenesis is important for adequate oxygen delivery. The present study investigated a potential role for chrysin, a naturally occurring flavonoid, in promoting angiogenesis in hindlimb ischemia (HLI) rat model. Rats were allocated into four groups: (1) sham-operated control, (2) HLI: subjected to unilateral femoral artery ligation, (3) HLI + chrysin: received 100 mg/kg, i.p. chrysin immediately after HLI, and (4) HLI + chrysin + rapamycin: received 6 mg/kg/day rapamycin i.p. for 5 days then subjected to HLI and dosed with 100 mg/kg chrysin, i.p. Rats were killed 18 h later and gastrocnemius muscles were collected and divided into parts for (1) immunohistochemistry detection of CD31 and CD105, (2) qRT-PCR analysis of eNOS and VEGFR2, (3) colorimetric analysis of NO, (4) ELISA estimation of TGF-β, VEGF, ATG5 and Beclin-1, and (5) Western blot analysis of p-PI3K, PI3K, p-Akt, Akt, p-mTOR, mTOR, and HIF-1α. Chrysin significantly enhanced microvessels growth in HLI muscles as indicated by increased CD31 and CD105 levels and decreased TGF-β. Chrysin's proangiogenic effect is potentially mediated by increased VEGF, VEGFR2 and activation of PI3K/AKT/mTOR pathway, which promoted eNOS and NO levels as it was reversed by the mTOR inhibitor, rapamycin. Chrysin also inhibited autophagy as it decreased ATG5 and Beclin-1. The current study shows that chrysin possesses a proangiogenic effect in HLI rats and might be useful in patients with PAD.
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Affiliation(s)
- Rehab Kamel
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Helwan University, Cairo, Egypt.,Department of Pharmacology and Toxicology, Faculty of Pharmacy, Ahram Canadian University, Giza, Egypt
| | - Engy M El Morsy
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Helwan University, Cairo, Egypt
| | - Marwa E Elsherbiny
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Ahram Canadian University, Giza, Egypt
| | - Mahmoud Nour-Eldin
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, University of Sadat City (USC), Menoufia, Egypt
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3
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Sier VQ, van der Vorst JR, Quax PHA, de Vries MR, Zonoobi E, Vahrmeijer AL, Dekkers IA, de Geus-Oei LF, Smits AM, Cai W, Sier CFM, Goumans MJTH, Hawinkels LJAC. Endoglin/CD105-Based Imaging of Cancer and Cardiovascular Diseases: A Systematic Review. Int J Mol Sci 2021; 22:4804. [PMID: 33946583 PMCID: PMC8124553 DOI: 10.3390/ijms22094804] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 04/27/2021] [Accepted: 04/28/2021] [Indexed: 02/07/2023] Open
Abstract
Molecular imaging of pathologic lesions can improve efficient detection of cancer and cardiovascular diseases. A shared pathophysiological feature is angiogenesis, the formation of new blood vessels. Endoglin (CD105) is a coreceptor for ligands of the Transforming Growth Factor-β (TGF-β) family and is highly expressed on angiogenic endothelial cells. Therefore, endoglin-based imaging has been explored to visualize lesions of the aforementioned diseases. This systematic review highlights the progress in endoglin-based imaging of cancer, atherosclerosis, myocardial infarction, and aortic aneurysm, focusing on positron emission tomography (PET), single-photon emission computed tomography (SPECT), magnetic resonance imaging (MRI), near-infrared fluorescence (NIRF) imaging, and ultrasound imaging. PubMed was searched combining the following subjects and their respective synonyms or relevant subterms: "Endoglin", "Imaging/Image-guided surgery". In total, 59 papers were found eligible to be included: 58 reporting about preclinical animal or in vitro models and one ex vivo study in human organs. In addition to exact data extraction of imaging modality type, tumor or cardiovascular disease model, and tracer (class), outcomes were described via a narrative synthesis. Collectively, the data identify endoglin as a suitable target for intraoperative and diagnostic imaging of the neovasculature in tumors, whereas for cardiovascular diseases, the evidence remains scarce but promising.
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Affiliation(s)
- Vincent Q. Sier
- Department of Surgery, Leiden University Medical Center, 2300 RC Leiden, The Netherlands; (V.Q.S.); (J.R.v.d.V.); (P.H.A.Q.); (M.R.d.V.); (E.Z.); (A.L.V.)
| | - Joost R. van der Vorst
- Department of Surgery, Leiden University Medical Center, 2300 RC Leiden, The Netherlands; (V.Q.S.); (J.R.v.d.V.); (P.H.A.Q.); (M.R.d.V.); (E.Z.); (A.L.V.)
| | - Paul H. A. Quax
- Department of Surgery, Leiden University Medical Center, 2300 RC Leiden, The Netherlands; (V.Q.S.); (J.R.v.d.V.); (P.H.A.Q.); (M.R.d.V.); (E.Z.); (A.L.V.)
| | - Margreet R. de Vries
- Department of Surgery, Leiden University Medical Center, 2300 RC Leiden, The Netherlands; (V.Q.S.); (J.R.v.d.V.); (P.H.A.Q.); (M.R.d.V.); (E.Z.); (A.L.V.)
| | - Elham Zonoobi
- Department of Surgery, Leiden University Medical Center, 2300 RC Leiden, The Netherlands; (V.Q.S.); (J.R.v.d.V.); (P.H.A.Q.); (M.R.d.V.); (E.Z.); (A.L.V.)
- Edinburgh Molecular Imaging Ltd. (EMI), Edinburgh EH16 4UX, UK
| | - Alexander L. Vahrmeijer
- Department of Surgery, Leiden University Medical Center, 2300 RC Leiden, The Netherlands; (V.Q.S.); (J.R.v.d.V.); (P.H.A.Q.); (M.R.d.V.); (E.Z.); (A.L.V.)
| | - Ilona A. Dekkers
- Department of Radiology, Leiden University Medical Center, 2300 RC Leiden, The Netherlands;
| | - Lioe-Fee de Geus-Oei
- Department of Radiology, Section of Nuclear Medicine, Leiden University Medical Center, 2300 RC Leiden, The Netherlands;
- Biomedical Photonic Imaging Group, University of Twente, 7500 AE Enschede, The Netherlands
| | - Anke M. Smits
- Department of Cell & Chemical Biology, Leiden University Medical Center, 2300 RC Leiden, The Netherlands; (A.M.S.); (M.J.T.H.G.)
| | - Weibo Cai
- Departments of Radiology and Medical Physics, University of Wisconsin-Madison, Madison, WI 53705, USA;
| | - Cornelis F. M. Sier
- Department of Surgery, Leiden University Medical Center, 2300 RC Leiden, The Netherlands; (V.Q.S.); (J.R.v.d.V.); (P.H.A.Q.); (M.R.d.V.); (E.Z.); (A.L.V.)
- Percuros B.V., 2333 CL Leiden, The Netherlands
| | - Marie José T. H. Goumans
- Department of Cell & Chemical Biology, Leiden University Medical Center, 2300 RC Leiden, The Netherlands; (A.M.S.); (M.J.T.H.G.)
| | - Lukas J. A. C. Hawinkels
- Department of Gastroenterology and Hepatology, Leiden University Medical Center, 2300 RC Leiden, The Netherlands;
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Chakravarty R, Rajeswari A, Shetty P, Jagadeesan KC, Ram R, Jadhav S, Sarma HD, Dash A, Chakraborty S. A simple and robust method for radiochemical separation of no-carrier-added 64Cu produced in a research reactor for radiopharmaceutical preparation. Appl Radiat Isot 2020; 165:109341. [PMID: 32745917 DOI: 10.1016/j.apradiso.2020.109341] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 06/29/2020] [Accepted: 07/13/2020] [Indexed: 12/25/2022]
Abstract
Copper-64 is an excellent theranostic radiometal that is gaining renewed attention of the clinical community in the recent times. In order to meet the increasing demand of this radiometal, we have demonstrated the viability of its production via 64Zn (n,p) 64Cu reaction in a nuclear reactor. A semi-automated radiochemical separation module based on selective extraction of 64Cu as dithizonate complex was developed. The maximum available activity at the end of irradiation was ~ 700 MBq. The overall yield of 64Cu after the separation process was >85% and it could be obtained with ~12 GBq/μg specific activity, >99.9% radionuclidic purity and >98% radiochemical purity. The separated 64Cu could be utilized for preparation of a wide variety of radiopharmaceuticals.
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Affiliation(s)
- Rubel Chakravarty
- Radiopharmaceuticals Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India; Homi Bhabha National Institute, Anushaktinagar, Mumbai, 400094, India.
| | - Ardhi Rajeswari
- Radiopharmaceuticals Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - Priyalata Shetty
- Radiopharmaceuticals Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - K C Jagadeesan
- Radiopharmaceuticals Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - Ramu Ram
- Radiopharmaceuticals Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - Sachin Jadhav
- Radiopharmaceuticals Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - Haladhar Dev Sarma
- Radiation Biology and Health Sciences Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - Ashutosh Dash
- Radiopharmaceuticals Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India; Homi Bhabha National Institute, Anushaktinagar, Mumbai, 400094, India
| | - Sudipta Chakraborty
- Radiopharmaceuticals Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India; Homi Bhabha National Institute, Anushaktinagar, Mumbai, 400094, India.
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5
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Hedhli J, Kim M, Knox HJ, Cole JA, Huynh T, Schuelke M, Dobrucki IT, Kalinowski L, Chan J, Sinusas AJ, Insana MF, Dobrucki LW. Imaging the Landmarks of Vascular Recovery. Am J Cancer Res 2020; 10:1733-1745. [PMID: 32042333 PMCID: PMC6993245 DOI: 10.7150/thno.36022] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Accepted: 08/31/2019] [Indexed: 12/25/2022] Open
Abstract
Background: Peripheral arterial disease (PAD) is a major worldwide health concern. Since the late 1990s therapeutic angiogenesis has been investigated as an alternative to traditional PAD treatments. Although positive preclinical results abound in the literature, the outcomes of human clinical trials have been discouraging. Among the challenges the field has faced has been a lack of standardization of the timings and measures used to validate new treatment approaches. Methods: In order to study the spatiotemporal dynamics of both perfusion and neovascularization in mice subjected to surgically-induced hindlimb ischemia (n= 30), we employed three label-free imaging modalities (a novel high-sensitivity ultrasonic Power Doppler methodology, laser speckle contrast, and photoacoustic imaging), as well as a tandem of radio-labeled molecular probes, 99mTc-NC100692 and 99mTc-BRU-5921 respectively, designed to detect two key modulators of angiogenic activity, αVβ3 and HIF-1α , via scintigraphic imaging. Results: The multimodal imaging strategy reveals a set of “landmarks”—key physiological and molecular events in the healing process—that can serve as a standardized framework for describing the impact of emerging PAD treatments. These landmarks span the entire process of neovascularization, beginning with the rapid decreases in perfusion and oxygenation associated with ligation surgery, extending through pro-angiogenic changes in gene expression driven by the master regulator HIF-1α , and ultimately leading to complete functional revascularization of the affected tissues. Conclusions: This study represents an important step in the development of multimodal non-invasive imaging strategies for vascular research; the combined results offer more insight than can be gleaned through any of the individual imaging methods alone. Researchers adopting similar imaging strategies and will be better able to describe changes in the onset, duration, and strength of each of the landmarks of vascular recovery, yielding greater biological insight, and enabling more comprehensive cross-study comparisons. Perhaps most important, this study paves the road for more efficient translation of PAD research; emerging experimental treatments can be more effectively assessed and refined at the preclinical stage, ultimately leading to better next-generation therapies.
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6
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In vivo imaging of TGFβ signalling components using positron emission tomography. Drug Discov Today 2019; 24:2258-2272. [DOI: 10.1016/j.drudis.2019.08.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2019] [Revised: 08/01/2019] [Accepted: 08/28/2019] [Indexed: 12/21/2022]
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7
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Di Stefano AB, Massihnia D, Grisafi F, Castiglia M, Toia F, Montesano L, Russo A, Moschella F, Cordova A. Adipose tissue, angiogenesis and angio-MIR under physiological and pathological conditions. Eur J Cell Biol 2019; 98:53-64. [DOI: 10.1016/j.ejcb.2018.11.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2018] [Revised: 11/28/2018] [Accepted: 11/29/2018] [Indexed: 01/06/2023] Open
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8
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Evaluación de la reperfusión tras angiogénesis terapéutica con fotopletismografía en un modelo murino de isquemia de miembros inferiores. ANGIOLOGIA 2019. [DOI: 10.20960/angiologia.00002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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9
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Noukeu LC, Wolf J, Yuan B, Banerjee S, Nguyen KT. Nanoparticles for Detection and Treatment of Peripheral Arterial Disease. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:e1800644. [PMID: 29952061 DOI: 10.1002/smll.201800644] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Indexed: 06/08/2023]
Abstract
Peripheral arterial disease (PAD) is defined as a slow, progressive disorder of the lower extremity arterial vessels characterized by chronic narrowing that often results in occlusion and is associated with loss of functional capacity. Although the PAD occurrence rate is increasing in the elderly population, outcomes with current treatment strategies are suboptimal. Hence, there is an urgent need to develop new technologies that overcome limitations of traditional modalities for PAD detection and therapy. In this Review, the application of nanotechnology as a tool that bridges the gap in PAD diagnosis and therapy is in focus. Several materials including synthetic, natural, biodegradable, and biocompatible materials are used to develop nanoparticles for PAD diagnostic and/or therapeutic applications. Moreover, various recent research approaches are being explored to diagnose PAD through multimodality imaging with different nanoplatforms. Further efforts include targeted delivery of various therapeutic agents using nanostructures as carriers to treat PAD. Last, but not least, despite being a fairly new field, researchers are exploring the use of nanotheranostics for PAD detection and therapy.
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Affiliation(s)
- Linda C Noukeu
- Department of Bioengineering, University of Texas at Arlington, Arlington, TX, 76010, USA
- Joint Biomedical Engineering Program, University of Texas Southwestern, Dallas, TX, 75235, USA
| | - Joseph Wolf
- Department of Bioengineering, University of Texas at Arlington, Arlington, TX, 76010, USA
- Joint Biomedical Engineering Program, University of Texas Southwestern, Dallas, TX, 75235, USA
| | - Baohong Yuan
- Department of Bioengineering, University of Texas at Arlington, Arlington, TX, 76010, USA
- Joint Biomedical Engineering Program, University of Texas Southwestern, Dallas, TX, 75235, USA
| | - Subhash Banerjee
- Division of Cardiology, University of Texas Southwestern Medical Center, Dallas, TX, 75235, USA
| | - Kytai T Nguyen
- Department of Bioengineering, University of Texas at Arlington, Arlington, TX, 76010, USA
- Joint Biomedical Engineering Program, University of Texas Southwestern, Dallas, TX, 75235, USA
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10
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Ferreira CA, Hernandez R, Yang Y, Valdovinos HF, Engle JW, Cai W. ImmunoPET of CD146 in a Murine Hindlimb Ischemia Model. Mol Pharm 2018; 15:3434-3441. [PMID: 29889530 DOI: 10.1021/acs.molpharmaceut.8b00424] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Peripheral arterial disease (PAD) consists of a persistent obstruction of lower-extremity arteries further from the aortic bifurcation attributable to atherosclerosis. PAD is correlated with an elevated risk of morbidity and mortality as well as of deterioration of the quality of life with claudication and chronic leg ischemia being the most frequent complications. Therapeutic angiogenesis is a promising therapeutic strategy that aims to restore the blood flow to the ischemic limb. In this context, assessing the efficacy of pro-angiogenic treatment using a reliable noninvasive imaging technique would greatly benefit the implementation of this therapeutic approach. Herein, we describe the angiogenesis and perfusion recovery characteristics of a mouse model of PAD via in vivo positron emission tomography (PET) imaging of CD146 expression. For that, ischemia was generated by ligation and excision of the right femoral artery of Balb/C mice and confirmed through laser Doppler imaging. The angiogenic process, induced by ischemia, was noninvasively monitored and quantified through PET imaging of CD146 expression in the injured leg using a 64Cu-labeled anti-CD146 monoclonal antibody, 64Cu-NOTA-YY146, at post-operative days 3, 10, and 17. The CD146-specific character of 64Cu-NOTA-YY146 was verified via a blocking study performed in another cohort at day 10 after surgery. Tracer uptake was correlated with in situ CD146 expression by histological analysis. PET scan results indicated that 64Cu-NOTA-YY146 uptake in the injured leg was significantly higher, with the highest uptake with a value of 14.1 ± 2.0 %ID/g at post-operative day 3, compared to the normal contralateral hindlimb, at all time points (maximum uptake of 2.2 ± 0.2 %ID/g). The pre-injection of a blocking dose resulted in a significantly lower tracer uptake in the ischemic hindlimb on day 10 after surgery, confirming tracer specificity. CD146/CD31 immunofluorescent co-staining showed an excellent correlation between the high uptake of the tracer with in situ CD146 expression levels and a marked co-localization of CD146 and CD31 signals. In conclusion, persistent and CD146-specific tracer accumulation in the ischemic hindlimb was observed, confirming the feasibility of 64Cu-NOTA-YY146 to be used as an imaging agent to monitor the progression of angiogenesis and recovery in future PAD research.
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Affiliation(s)
- Carolina A Ferreira
- Department of Biomedical Engineering , University of Wisconsin-Madison , Madison , Wisconsin , 53706 , United States
| | - Reinier Hernandez
- Department of Radiology , University of Wisconsin-Madison , Madison , Wisconsin , 53792 , United States
| | - Yunan Yang
- Department of Radiology , University of Wisconsin-Madison , Madison , Wisconsin , 53792 , United States
| | - Hector F Valdovinos
- Department of Medical Physics , University of Wisconsin-Madison , Madison , Wisconsin , 53705 , United States
| | - Jonathan W Engle
- Department of Medical Physics , University of Wisconsin-Madison , Madison , Wisconsin , 53705 , United States
| | - Weibo Cai
- Department of Biomedical Engineering , University of Wisconsin-Madison , Madison , Wisconsin , 53706 , United States.,Department of Radiology , University of Wisconsin-Madison , Madison , Wisconsin , 53792 , United States.,Department of Medical Physics , University of Wisconsin-Madison , Madison , Wisconsin , 53705 , United States.,University of Wisconsin Carbone Cancer Center , Madison , Wisconsin , 53792 , United States
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11
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Cai W, Guang H, Cai C, Luo J. Effects of temperature on multiparametric evaluation of hindlimb ischemia with dynamic fluorescence imaging. JOURNAL OF BIOPHOTONICS 2017; 10:811-820. [PMID: 27925417 DOI: 10.1002/jbio.201600235] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Revised: 10/31/2016] [Accepted: 11/22/2016] [Indexed: 05/09/2023]
Abstract
Quantitative evaluation of hindlimb ischemia is essential for early diagnosis and therapy of peripheral arterial disease (PAD). Dynamic imaging using near-infrared (NIR) fluorophore indocyanine green (ICG) is a noninvasive and effective tool to monitor multiple vascular parameters including perfusion rate (PR), perfusion vascular density (PVD) and hemodynamics. It has been previously demonstrated that temperature changes could lead to significant variations of blood flow rate and vascular perfusion. In this paper, multiparametric evaluation of hindlimb ischemia was performed at different temperatures. Five different parameters were extracted from dynamic fluorescence imaging, including PR, PVD, rising time (Trise ), blood flow index (BFI) and mean fluorescence intensity (MFI). Temperatures varied from 15 °C to 40 °C were set on a mouse model of hindlimb ischemia. The aforementioned five parameters were obtained at each temperature. The results suggest that PVD, BFI and MFI could be effective indicators to distinguish ischemic tissues from normal tissues in mouse hindlimb at different temperatures. In contrast, PR is effective only when the temperature is higher than 25 °C, while Trise is effective only when the temperature is lower than 35 °C. The parameters of PVD, BFI and MFI could provide quantitative and comprehensive evaluation for PAD at different temperatures. (A) Bright-field image of the normal (left) and ischemic (right) hindlimbs. (B-D) Parametric images of perfusion vascular density, blood flow index and mean fluorescence intensity.
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Affiliation(s)
- Wenjuan Cai
- Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing, 100084, China
| | - Huizhi Guang
- Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing, 100084, China
| | - Chuangjian Cai
- Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing, 100084, China
| | - Jianwen Luo
- Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing, 100084, China
- Center for Biomedical Imaging Research, Tsinghua University, Beijing, 100084, China
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12
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England CG, Im HJ, Feng L, Chen F, Graves SA, Hernandez R, Orbay H, Xu C, Cho SY, Nickles RJ, Liu Z, Lee DS, Cai W. Re-assessing the enhanced permeability and retention effect in peripheral arterial disease using radiolabeled long circulating nanoparticles. Biomaterials 2016; 100:101-9. [PMID: 27254470 DOI: 10.1016/j.biomaterials.2016.05.018] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Revised: 05/08/2016] [Accepted: 05/17/2016] [Indexed: 10/21/2022]
Abstract
As peripheral arterial disease (PAD) results in muscle ischemia and neovascularization, it has been claimed that nanoparticles can passively accumulate in ischemic tissues through the enhanced permeability and retention (EPR) effect. At this time, a quantitative evaluation of the passive targeting capabilities of nanoparticles has not been reported in PAD. Using a murine model of hindlimb ischemia, we quantitatively assessed the passive targeting capabilities of (64)Cu-labeled PEGylated reduced graphene oxide - iron oxide nanoparticles ((64)Cu-RGO-IONP-PEG) through the EPR effect using positron emission tomography (PET) imaging. Serial laser Doppler imaging was performed to monitor changes in blood perfusion upon surgical induction of ischemia. Nanoparticle accumulation was assessed at 3, 10, and 17 days post-surgery and found to be highest at 3 days post-surgery, with the ischemic hindlimb displaying an accumulation of 14.7 ± 0.5% injected dose per gram (%ID/g). Accumulation of (64)Cu-RGO-IONP-PEG was lowest at 17 days post-surgery, with the ischemic hindlimb displaying only 5.1 ± 0.5%ID/g. Furthermore, nanoparticle accumulation was confirmed by photoacoustic imaging (PA). The combination of PET and serial Doppler imaging showed that nanoparticle accumulation in the ischemic hindlimb negatively correlated with blood perfusion. Thus, we quantitatively confirmed that (64)Cu-RGO-IONP-PEG passively accumulated in ischemic tissue via the EPR effect, which is reduced as the perfusion normalizes. As (64)Cu-RGO-IONP-PEG displayed substantial accumulation in the ischemic tissue, this nanoparticle platform may function as a future theranostic agent, providing both imaging and therapeutic applications.
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Affiliation(s)
- Christopher G England
- Department of Medical Physics, University of Wisconsin - Madison, Madison, WI 53705, USA
| | - Hyung-Jun Im
- Department of Radiology, University of Wisconsin - Madison, WI 53705, USA; Department of Molecular Medicine and Biopharmaceutical Sciences, Department of Nuclear Medicine, Seoul National University, Seoul 110-744, South Korea
| | - Liangzhu Feng
- Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices Laboratory, Soochow University Suzhou, Jiangsu 215123, China
| | - Feng Chen
- Department of Radiology, University of Wisconsin - Madison, WI 53705, USA
| | - Stephen A Graves
- Department of Medical Physics, University of Wisconsin - Madison, Madison, WI 53705, USA
| | - Reinier Hernandez
- Department of Medical Physics, University of Wisconsin - Madison, Madison, WI 53705, USA
| | - Hakan Orbay
- Department of Surgery, University of California-Davis, Sacramento, CA 95817, USA
| | - Cheng Xu
- Department of Radiology, University of Wisconsin - Madison, WI 53705, USA
| | - Steve Y Cho
- Department of Radiology, University of Wisconsin - Madison, WI 53705, USA
| | - Robert J Nickles
- Department of Medical Physics, University of Wisconsin - Madison, Madison, WI 53705, USA
| | - Zhuang Liu
- Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices Laboratory, Soochow University Suzhou, Jiangsu 215123, China
| | - Dong Soo Lee
- Department of Molecular Medicine and Biopharmaceutical Sciences, Department of Nuclear Medicine, Seoul National University, Seoul 110-744, South Korea
| | - Weibo Cai
- Department of Medical Physics, University of Wisconsin - Madison, Madison, WI 53705, USA; Department of Radiology, University of Wisconsin - Madison, WI 53705, USA; University of Wisconsin Carbone Cancer Center, Madison, WI 53705, USA.
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13
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Abstract
Peripheral vascular disease (PVD) is a progressive atherosclerotic disease that leads to stenosis or occlusion of blood vessels supplying the lower extremities. Current diagnostic imaging techniques commonly focus on evaluation of anatomy or blood flow at the macrovascular level and do not permit assessment of the underlying pathophysiology associated with disease progression or treatment response. Molecular imaging with radionuclide-based approaches can offer novel insight into PVD by providing noninvasive assessment of biological processes such as angiogenesis and atherosclerosis. This article discusses emerging radionuclide-based imaging approaches that have potential clinical applications in the evaluation of PVD progression and treatment.
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Affiliation(s)
- Mitchel R Stacy
- Department of Internal Medicine, Yale University School of Medicine, PO Box 208017, Dana-3, New Haven, CT 06520, USA.
| | - Albert J Sinusas
- Department of Internal Medicine, Yale University School of Medicine, PO Box 208017, Dana-3, New Haven, CT 06520, USA; Department of Diagnostic Radiology, Yale University School of Medicine, PO Box 208042, New Haven, CT 06520, USA
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14
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Tao H, Han Z, Han ZC, Li Z. Proangiogenic Features of Mesenchymal Stem Cells and Their Therapeutic Applications. Stem Cells Int 2016; 2016:1314709. [PMID: 26880933 PMCID: PMC4736816 DOI: 10.1155/2016/1314709] [Citation(s) in RCA: 171] [Impact Index Per Article: 21.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Revised: 11/04/2015] [Accepted: 11/29/2015] [Indexed: 12/20/2022] Open
Abstract
Mesenchymal stem cells (MSCs) have shown their therapeutic potency for treatment of cardiovascular diseases owing to their low immunogenicity, ease of isolation and expansion, and multipotency. As multipotent progenitors, MSCs have revealed their ability to differentiate into various cell types and could promote endogenous angiogenesis via microenvironmental modulation. Studies on cardiovascular diseases have demonstrated that transplanted MSCs could engraft at the injured sites and differentiate into cardiomyocytes and endothelial cells as well. Accordingly, several clinical trials using MSCs have been performed and revealed that MSCs may improve relevant clinical parameters in patients with vascular diseases. To fully comprehend the characteristics of MSCs, understanding their intrinsic property and associated modulations in tuning their behaviors as well as functions is indispensable for future clinical translation of MSC therapy. This review will focus on recent progresses on endothelial differentiation and potential clinical application of MSCs, with emphasis on therapeutic angiogenesis for treatment of cardiovascular diseases.
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Affiliation(s)
- Hongyan Tao
- Department of Pathophysiology, Nankai University School of Medicine, Tianjin 300071, China
- The Key Laboratory of Bioactive Materials, Ministry of Education, Nankai University College of Life Science, Tianjin 300071, China
| | - Zhibo Han
- State Key Lab of Experimental Hematology, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences, Tianjin 300020, China
| | - Zhong Chao Han
- State Key Lab of Experimental Hematology, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences, Tianjin 300020, China
| | - Zongjin Li
- Department of Pathophysiology, Nankai University School of Medicine, Tianjin 300071, China
- The Key Laboratory of Bioactive Materials, Ministry of Education, Nankai University College of Life Science, Tianjin 300071, China
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15
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Lin JB, Phillips EH, Riggins TE, Sangha GS, Chakraborty S, Lee JY, Lycke RJ, Hernandez CL, Soepriatna AH, Thorne BRH, Yrineo AA, Goergen CJ. Imaging of small animal peripheral artery disease models: recent advancements and translational potential. Int J Mol Sci 2015; 16:11131-77. [PMID: 25993289 PMCID: PMC4463694 DOI: 10.3390/ijms160511131] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2015] [Accepted: 03/10/2015] [Indexed: 12/11/2022] Open
Abstract
Peripheral artery disease (PAD) is a broad disorder encompassing multiple forms of arterial disease outside of the heart. As such, PAD development is a multifactorial process with a variety of manifestations. For example, aneurysms are pathological expansions of an artery that can lead to rupture, while ischemic atherosclerosis reduces blood flow, increasing the risk of claudication, poor wound healing, limb amputation, and stroke. Current PAD treatment is often ineffective or associated with serious risks, largely because these disorders are commonly undiagnosed or misdiagnosed. Active areas of research are focused on detecting and characterizing deleterious arterial changes at early stages using non-invasive imaging strategies, such as ultrasound, as well as emerging technologies like photoacoustic imaging. Earlier disease detection and characterization could improve interventional strategies, leading to better prognosis in PAD patients. While rodents are being used to investigate PAD pathophysiology, imaging of these animal models has been underutilized. This review focuses on structural and molecular information and disease progression revealed by recent imaging efforts of aortic, cerebral, and peripheral vascular disease models in mice, rats, and rabbits. Effective translation to humans involves better understanding of underlying PAD pathophysiology to develop novel therapeutics and apply non-invasive imaging techniques in the clinic.
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Affiliation(s)
- Jenny B Lin
- Weldon School of Biomedical Engineering, Purdue University, 206 S. Martin Jischke Drive, Room 3025, West Lafayette, IN 47907, USA.
| | - Evan H Phillips
- Weldon School of Biomedical Engineering, Purdue University, 206 S. Martin Jischke Drive, Room 3025, West Lafayette, IN 47907, USA.
| | - Ti'Air E Riggins
- Weldon School of Biomedical Engineering, Purdue University, 206 S. Martin Jischke Drive, Room 3025, West Lafayette, IN 47907, USA.
| | - Gurneet S Sangha
- Weldon School of Biomedical Engineering, Purdue University, 206 S. Martin Jischke Drive, Room 3025, West Lafayette, IN 47907, USA.
| | - Sreyashi Chakraborty
- School of Mechanical Engineering, Purdue University, West Lafayette, IN 47907, USA.
| | - Janice Y Lee
- Psychological Sciences, Purdue University, West Lafayette, IN 47907, USA.
| | - Roy J Lycke
- Weldon School of Biomedical Engineering, Purdue University, 206 S. Martin Jischke Drive, Room 3025, West Lafayette, IN 47907, USA.
| | - Clarissa L Hernandez
- Weldon School of Biomedical Engineering, Purdue University, 206 S. Martin Jischke Drive, Room 3025, West Lafayette, IN 47907, USA.
| | - Arvin H Soepriatna
- Weldon School of Biomedical Engineering, Purdue University, 206 S. Martin Jischke Drive, Room 3025, West Lafayette, IN 47907, USA.
| | - Bradford R H Thorne
- School of Sciences, Neuroscience, Purdue University, West Lafayette, IN 47907, USA.
| | - Alexa A Yrineo
- Weldon School of Biomedical Engineering, Purdue University, 206 S. Martin Jischke Drive, Room 3025, West Lafayette, IN 47907, USA.
| | - Craig J Goergen
- Weldon School of Biomedical Engineering, Purdue University, 206 S. Martin Jischke Drive, Room 3025, West Lafayette, IN 47907, USA.
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16
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Shi S, Hong H, Orbay H, Graves SA, Yang Y, Ohman JD, Liu B, Nickles RJ, Wong HC, Cai W. ImmunoPET of tissue factor expression in triple-negative breast cancer with a radiolabeled antibody Fab fragment. Eur J Nucl Med Mol Imaging 2015; 42:1295-303. [PMID: 25801992 DOI: 10.1007/s00259-015-3038-1] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2014] [Accepted: 03/05/2015] [Indexed: 01/20/2023]
Abstract
PURPOSE To date, there is no effective therapy for triple-negative breast cancer (TNBC), which has a dismal clinical outcome. Upregulation of tissue factor (TF) expression leads to increased patient morbidity and mortality in many solid tumor types, including TNBC. Our goal was to employ the Fab fragment of ALT-836, a chimeric anti-human TF mAb, for PET imaging of TNBC, which can be used to guide future TNBC therapy. METHODS ALT-836-Fab was generated by enzymatic papain digestion. SDS-PAGE and FACS studies were performed to evaluate the integrity and TF binding affinity of ALT-836-Fab before NOTA conjugation and (64)Cu-labeling. Serial PET imaging and biodistribution studies were carried out to evaluate the tumor targeting efficacy and pharmacokinetics in the MDA-MB-231 TNBC model, which expresses high levels of TF on the tumor cells. Blocking studies, histological assessment, as well as RT-PCR were performed to confirm TF specificity of (64)Cu-NOTA-ALT-836-Fab. RESULTS ALT-836-Fab was produced with high purity, which exhibited superb TF binding affinity and specificity. Serial PET imaging revealed rapid and persistent tumor uptake of (64)Cu-NOTA-ALT-836-Fab (5.1 ± 0.5 %ID/g at 24 h post-injection; n = 4) and high tumor/muscle ratio (7.0 ± 1.2 at 24 h post-injection; n = 4), several-fold higher than that of the blocking group and tumor models that do not express significant level of TF, which was confirmed by biodistribution studies. TF specificity of the tracer was also validated by histology and RT-PCR. CONCLUSION (64)Cu-NOTA-ALT-836-Fab exhibited prominent tissue factor targeting efficiency in MDA-MB-231 TNBC model. The use of a Fab fragment led to fast tumor uptake and good tissue/muscle ratio, which may be translated into same-day immunoPET imaging in the clinical setting to improve TNBC patient management.
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Affiliation(s)
- Sixiang Shi
- Materials Science Program, University of Wisconsin, Madison, WI, USA
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17
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Stacy MR, Paeng JC, Sinusas AJ. The role of molecular imaging in the evaluation of myocardial and peripheral angiogenesis. Ann Nucl Med 2015; 29:217-23. [PMID: 25750124 PMCID: PMC4661208 DOI: 10.1007/s12149-015-0961-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Accepted: 02/26/2015] [Indexed: 11/28/2022]
Abstract
Angiogenesis, or the formation of new microvasculature, is a physiological process that may occur in the setting of chronic tissue ischemia and can play an important role in improving tissue perfusion and blood flow following myocardial infarction or in the presence of peripheral vascular disease (PVD). Molecular imaging of angiogenesis within the cardiovascular system is a developing field of study. Targeted imaging of angiogenesis has the potential for non-invasive assessment of the underlying molecular signaling events associated with the angiogenic process and, when applied in conjunction with physiological perfusion imaging, may be utilized to predict and evaluate clinical outcomes in the setting of ischemic heart disease or PVD. This review discusses the developing radiotracer-based imaging techniques and technology currently in use that possess potential for clinical translation, with specific focus on PET and SPECT imaging of myocardial and peripheral angiogenesis.
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Affiliation(s)
- Mitchel R Stacy
- Department of Internal Medicine, Section of Cardiovascular Medicine, Yale University School of Medicine, Dana-3, P.O. Box 208017, New Haven, CT, 06520, USA
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18
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Chen F, Hong H, Goel S, Graves SA, Orbay H, Ehlerding EB, Shi S, Theuer CP, Nickles RJ, Cai W. In Vivo Tumor Vasculature Targeting of CuS@MSN Based Theranostic Nanomedicine. ACS NANO 2015; 9:3926-34. [PMID: 25843647 PMCID: PMC4414921 DOI: 10.1021/nn507241v] [Citation(s) in RCA: 127] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Actively targeted theranostic nanomedicine may be the key for future personalized cancer management. Although numerous types of theranostic nanoparticles have been developed in the past decade for cancer treatment, challenges still exist in the engineering of biocompatible theranostic nanoparticles with highly specific in vivo tumor targeting capabilities. Here, we report the design, synthesis, surface engineering, and in vivo active vasculature targeting of a new category of theranostic nanoparticle for future cancer management. Water-soluble photothermally sensitive copper sulfide nanoparticles were encapsulated in biocompatible mesoporous silica shells, followed by multistep surface engineering to form the final theranostic nanoparticles. Systematic in vitro targeting, an in vivo long-term toxicity study, photothermal ablation evaluation, in vivo vasculature targeted imaging, biodistribution and histology studies were performed to fully explore the potential of as-developed new theranostic nanoparticles.
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Affiliation(s)
- Feng Chen
- †Department of Radiology, University of Wisconsin - Madison, Wisconsin 53705, United States
| | - Hao Hong
- †Department of Radiology, University of Wisconsin - Madison, Wisconsin 53705, United States
| | - Shreya Goel
- ‡Materials Science Program, University of Wisconsin - Madison, Wisconsin 53705, United States
| | - Stephen A Graves
- §Department of Medical Physics, University of Wisconsin - Madison, Wisconsin 53705, United States
| | - Hakan Orbay
- †Department of Radiology, University of Wisconsin - Madison, Wisconsin 53705, United States
| | - Emily B Ehlerding
- §Department of Medical Physics, University of Wisconsin - Madison, Wisconsin 53705, United States
| | - Sixiang Shi
- ‡Materials Science Program, University of Wisconsin - Madison, Wisconsin 53705, United States
| | - Charles P Theuer
- ⊥TRACON Pharmaceuticals, Inc., San Diego, California 92122, United States
| | - Robert J Nickles
- §Department of Medical Physics, University of Wisconsin - Madison, Wisconsin 53705, United States
| | - Weibo Cai
- †Department of Radiology, University of Wisconsin - Madison, Wisconsin 53705, United States
- ‡Materials Science Program, University of Wisconsin - Madison, Wisconsin 53705, United States
- §Department of Medical Physics, University of Wisconsin - Madison, Wisconsin 53705, United States
- ∥University of Wisconsin Carbone Cancer Center, Madison, Wisconsin 53705, United States
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19
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Hong H, Chen F, Zhang Y, Cai W. New radiotracers for imaging of vascular targets in angiogenesis-related diseases. Adv Drug Deliv Rev 2014; 76:2-20. [PMID: 25086372 DOI: 10.1016/j.addr.2014.07.011] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2014] [Revised: 07/14/2014] [Accepted: 07/22/2014] [Indexed: 01/03/2023]
Abstract
Tremendous advances over the last several decades in positron emission tomography (PET) and single photon emission computed tomography (SPECT) allow for targeted imaging of molecular and cellular events in the living systems. Angiogenesis, a multistep process regulated by the network of different angiogenic factors, has attracted world-wide interests, due to its pivotal role in the formation and progression of different diseases including cancer, cardiovascular diseases (CVD), and inflammation. In this review article, we will summarize the recent progress in PET or SPECT imaging of a wide variety of vascular targets in three major angiogenesis-related diseases: cancer, cardiovascular diseases, and inflammation. Faster drug development and patient stratification for a specific therapy will become possible with the facilitation of PET or SPECT imaging and it will be critical for the maximum benefit of patients.
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20
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Orbay H, Zhang Y, Valdovinos HF, Song G, Hernandez R, Theuer CP, Hacker TA, Nickles RJ, Cai W. Positron emission tomography imaging of CD105 expression in a rat myocardial infarction model with (64)Cu-NOTA-TRC105. AMERICAN JOURNAL OF NUCLEAR MEDICINE AND MOLECULAR IMAGING 2013; 4:1-9. [PMID: 24380040 PMCID: PMC3867724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Received: 10/26/2013] [Accepted: 11/17/2013] [Indexed: 06/03/2023]
Abstract
Biological changes following myocardial infarction (MI) lead to increased secretion of angiogenic factors that subsequently stimulate the formation of new blood vessels as a compensatory mechanism to reverse ischemia. The goal of this study was to assess the role of CD105 expression during MI-induced angiogenesis by positron emission tomography (PET) imaging using (64)Cu-labeled TRC105, an anti-CD105 monoclonal antibody. MI was induced by ligation of the left anterior descending (LAD) artery in female rats. Echocardiography and (18)F-fluoro-2-deoxy-D-glucose ((18)F-FDG) PET scans were performed on post-operative day 3 to confirm the presence of MI in the infarct group and intact heart in the sham group, respectively. Ischemia-induced angiogenesis was non-invasively monitored with (64)Cu-NOTA-TRC105 (an extensively validated PET tracer in our previous studies) PET on post-operative days 3, 10, and 17. Tracer uptake in the infarct zone was highest on day 3 following MI, which was significantly higher than that in the sham group (1.41 ± 0.45 %ID/g vs 0.57 ± 0.07 %ID/g; n=3, p<0.05). Subsequently, tracer uptake in the infarct zone decreased over time to the background level on day 17, whereas tracer uptake in the heart of sham rats remained low at all time points examined. Histopathology documented increased CD105 expression following MI, which corroborated in vivo findings. This study indicated that PET imaging of CD105 can be a useful tool for MI-related research, which can potentially improve MI patient management in the future upon clinical translation of the optimized PET tracers.
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Affiliation(s)
- Hakan Orbay
- Department of Radiology, University of Wisconsin - MadisonWI, USA
| | - Yin Zhang
- Department of Medical Physics, University of Wisconsin - MadisonWI, USA
| | | | - Guoqing Song
- Department of Medicine, Division of Cardiovascular Medicine, University of Wisconsin - MadisonWI, USA
| | - Reinier Hernandez
- Department of Medical Physics, University of Wisconsin - MadisonWI, USA
| | | | - Timothy A Hacker
- Department of Medicine, Division of Cardiovascular Medicine, University of Wisconsin - MadisonWI, USA
| | - Robert J Nickles
- Department of Medical Physics, University of Wisconsin - MadisonWI, USA
| | - Weibo Cai
- Department of Radiology, University of Wisconsin - MadisonWI, USA
- Department of Medical Physics, University of Wisconsin - MadisonWI, USA
- University of Wisconsin Carbone Cancer CenterMadison, WI, USA
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21
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Orbay H, Hong H, Koch JM, Valdovinos HF, Hacker TA, Theuer CP, Barnhart TE, Cai W. Pravastatin stimulates angiogenesis in a murine hindlimb ischemia model: a positron emission tomography imaging study with (64)Cu-NOTA-TRC105. Am J Transl Res 2013; 6:54-63. [PMID: 24349621 PMCID: PMC3853424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2013] [Accepted: 10/18/2013] [Indexed: 06/03/2023]
Abstract
In this study, (64)Cu-NOTA-TRC105 (TRC105 is an anti-CD105 monoclonal antibody that binds to both human and murine CD105) positron emission tomography (PET) was used to assess the response to pravastatin treatment in a murine model of peripheral artery disease (PAD). Hindlimb ischemia was induced by ligation of the right femoral arteries in BALB/c mice under anesthesia, and the left hindlimb served as an internal control. Mice in the treatment group were given intraperitoneal pravastatin daily until the end of the study, whereas the animals in the control group were injected with 0.9% sodium chloride solution. Laser Doppler imaging showed that blood flow in the ischemic hindlimb plummeted to ~20% of the normal level after surgery, and gradually recovered to near normal level on day 10 in the treatment group and on day 20 in the control group. Angiogenesis was non-invasively monitored and quantified with (64)Cu-NOTA-TRC105 PET on postoperative days 3, 10, 17, and 24. Tracer uptake at 48 h post-injection in the ischemic hindlimb in the treatment group was significantly higher than that of the control group on day 10 (20.5 ± 1.9 %ID/g vs 11.4 ± 1.5 %ID/g), suggesting increased CD105 expression and higher level of angiogenesis upon pravastatin treatment, and gradually decreased to background levels in both groups (4.9 ± 0.8 %ID/g vs 3.4 ± 1.9 %ID/g on day 24). The in vivo PET data correlated well with ex vivo biodistribution studies performed on day 24. Increased CD105 expression on days 3 and 10 following ischemia was further confirmed by immunofluorescence staining. Taken together, our results indicated that (64)Cu-NOTA-TRC105 PET is a suitable and non-invasive method to monitor the angiogenesis and therapeutic response in PAD, which can also be utilized for non-invasive evaluation of other pro-angiogenic/anti-angiogenic drugs in other cardiovascular diseases and cancer.
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Affiliation(s)
- Hakan Orbay
- Department of Radiology, University of Wisconsin - MadisonWI, USA
| | - Hao Hong
- Department of Radiology, University of Wisconsin - MadisonWI, USA
| | - Jill M Koch
- Department of Medicine, University of Wisconsin - MadisonWI, USA
| | | | - Timothy A Hacker
- Department of Medicine, University of Wisconsin - MadisonWI, USA
| | | | - Todd E Barnhart
- Department of Medical Physics, University of Wisconsin - MadisonWI, USA
| | - Weibo Cai
- Department of Radiology, University of Wisconsin - MadisonWI, USA
- Department of Medical Physics, University of Wisconsin - MadisonWI, USA
- University of Wisconsin Carbone Cancer CenterMadison, WI, USA
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22
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Huang CC, Chen DY, Wei HJ, Lin KJ, Wu CT, Lee TY, Hu HY, Hwang SM, Chang Y, Sung HW. Hypoxia-induced therapeutic neovascularization in a mouse model of an ischemic limb using cell aggregates composed of HUVECs and cbMSCs. Biomaterials 2013; 34:9441-50. [DOI: 10.1016/j.biomaterials.2013.09.010] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2013] [Accepted: 09/04/2013] [Indexed: 12/12/2022]
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