Abstract:
PURPOSE:The transplantation of pancreatic islets is a promising cell replacement therapy for type 1 diabetes. Subcutaneous islet transplantation is currently under investigation as a means to circumvent problems associated with standard intra-hepatic islet transplantation. As modifications are being developed to improve the efficacy of subcutaneous islet transplantation, it is important to have robust methods to assess engraftment. Experimentally, ATP-dependent bioluminescence imaging using luciferase reporter genes has been effective for non-invasively tracking engraftment. However, it was heretofore unknown if the bioluminescence of subcutaneously transplanted luciferase-expressing islet grafts correlates with diabetes reversal, a primary outcome of transplantation. PROCEDURES:A retrospective analysis was conducted using data obtained from subcutaneous islet transplantations in Lewis rats. The analysis included transplantations from our laboratory in which islet donors were transgenic rats ubiquitously expressing luciferase and recipients were wild type, streptozotocin-induced diabetic rats. Data from 79 bioluminescence scans were obtained from 27 islet transplantations during the post-transplant observation period (up to 6 weeks). The bioluminescence intensity of the subcutaneously transplanted grafts, captured after the intravenous administration of luciferin, was correlated with diabetes reversal. RESULTS:After subcutaneous transplantation, islet bioluminescence decreased over time, dropping > 50 % from 1 to 3 weeks post-transplant. Bioluminescence intensity in the early post-transplant phase (1-2 weeks) correlated with the subsequent reversal of diabetes; based on optimized bioluminescence cutoff values, the bioluminescence intensity of islets at 1 and 2 weeks predicted successful transplantations. However, intensity in the late post-transplant phase (≥ 4 weeks) did not reflect transplantation outcomes. CONCLUSIONS:Early-phase bioluminescence imaging of luciferase-expressing islets could serve as a useful tool to predict the success of subcutaneous islet transplantations by preceding changes in glucose homeostasis.
journal_name
Mol Imaging Bioljournal_title
Molecular imaging and biologyauthors
Komatsu H,Gonzalez N,Ortiz J,Rawson J,Omori K,Kandeel F,Mullen Ydoi
10.1007/s11307-020-01560-2subject
Has Abstractpub_date
2020-11-02 00:00:00eissn
1536-1632issn
1860-2002pii
10.1007/s11307-020-01560-2pub_type
杂志文章abstract:PURPOSE:Synapse loss is a hallmark of Alzheimer's disease (AD) and correlates with cognitive decline. The validation of a noninvasive in vivo imaging approach to quantify synapse would greatly facilitate our understanding of AD pathogenesis and assist drug developments for AD. As animal models of neurodegenerative and ...
journal_title:Molecular imaging and biology
pub_type: 杂志文章
doi:10.1007/s11307-020-01567-9
更新日期:2020-11-30 00:00:00
abstract:PURPOSE:The Cre-loxP system has become an important strategy for conditional gene deletion and conditional gene expression in genetically engineered mice. To evaluate Cre recombinase expression, we generated reporter mice that permit both noninvasive imaging in living animals and either ex vivo histochemical/immunohist...
journal_title:Molecular imaging and biology
pub_type: 杂志文章
doi:10.1007/s11307-010-0333-x
更新日期:2011-04-01 00:00:00
abstract:PURPOSE:This research aimed to study the use of Cerenkov luminescence imaging (CLI) for non-Hodgkin's lymphoma (NHL) using 89Zr-rituximab positron emission tomography (PET) tracer with a humanized transgenic mouse model that expresses human CD20 and the correlation of CLI with PET. PROCEDURES:Zr-rituximab (2.6 MBq) wa...
journal_title:Molecular imaging and biology
pub_type: 杂志文章
doi:10.1007/s11307-013-0624-0
更新日期:2013-08-01 00:00:00
abstract:PURPOSE:Macrophage accumulation characterizes the development of atherosclerotic plaques, and the presence of certain macrophage subsets might be an indicator of plaque phenotype and (in)stability. The macrophage mannose receptor (MMR) is expressed on alternatively activated macrophages and found at sites of intraplaqu...
journal_title:Molecular imaging and biology
pub_type: 杂志文章
doi:10.1007/s11307-017-1117-3
更新日期:2018-04-01 00:00:00
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journal_title:Molecular imaging and biology
pub_type: 杂志文章
doi:10.1007/s11307-014-0757-9
更新日期:2014-12-01 00:00:00
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journal_title:Molecular imaging and biology
pub_type: 杂志文章
doi:10.1007/s11307-018-1247-2
更新日期:2019-04-01 00:00:00
abstract:PURPOSE:Construction of antibody-based, molecular-targeted optical imaging probes requires the labeling of an antibody with a fluorophore. The most common method for doing this involves non-specifically conjugating a fluorophore to an antibody, resulting in poorly defined, heterogeneous imaging probes that often have s...
journal_title:Molecular imaging and biology
pub_type: 杂志文章
doi:10.1007/s11307-018-1222-y
更新日期:2019-02-01 00:00:00
abstract::The article "Pre-therapy Somatostatin Receptor-Based Heterogeneity Predicts Overall Survival in Pancreatic Neuroendocrine Tumor Patients Undergoing Peptide Receptor Radionuclide Therapy," was originally published electronically on the publisher's internet portal without open access. ...
journal_title:Molecular imaging and biology
pub_type: 杂志文章,已发布勘误
doi:10.1007/s11307-018-1261-4
更新日期:2018-12-01 00:00:00
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journal_title:Molecular imaging and biology
pub_type: 杂志文章
doi:10.1007/s11307-006-0042-7
更新日期:2006-07-01 00:00:00
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journal_title:Molecular imaging and biology
pub_type: 杂志文章
doi:10.1007/s11307-020-01556-y
更新日期:2020-11-17 00:00:00
abstract::The Commercial Innovation of the Year Award went to Emile Beaulieu of Photon etc. for their work. ...
journal_title:Molecular imaging and biology
pub_type: 已发布勘误
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更新日期:2020-02-01 00:00:00
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journal_title:Molecular imaging and biology
pub_type: 杂志文章
doi:10.1007/s11307-018-1291-y
更新日期:2019-08-01 00:00:00
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journal_title:Molecular imaging and biology
pub_type: 杂志文章
doi:10.1016/s1095-0397(01)00071-1
更新日期:2002-01-01 00:00:00
abstract:PURPOSE:Transplantation of a regenerative cell population derived from human subcutaneous adipose tissue (hASCs) for cardiac regeneration represents a promising therapy due to the capacity of these cells for proliferation and differentiation. Understanding the fate of injected hASCs would help to understand how hASCs w...
journal_title:Molecular imaging and biology
pub_type: 杂志文章
doi:10.1007/s11307-010-0392-z
更新日期:2011-08-01 00:00:00
abstract:PURPOSE:To evaluate the utility of three-dimensional (3D) amide proton transfer-weighted (APTw) imaging for differentiation of endometrial adenocarcinoma and uterine benign lesions. PROCEDURES:This prospective study enrolled 22 normal volunteers and 113 patients with suspicious uterine lesions, including endometrial a...
journal_title:Molecular imaging and biology
pub_type: 杂志文章
doi:10.1007/s11307-020-01565-x
更新日期:2020-11-13 00:00:00
abstract:PURPOSE:Recent studies have shown rapid accumulation of nanobodies (NBs) in tumors and fast clearance of the unbound fraction, making NBs exceptional tracers for cancer imaging. In this study, we investigate the combination of in vitro imaging of tumor spheroids, in vivo dual-isotope single-photon emission computed tom...
journal_title:Molecular imaging and biology
pub_type: 杂志文章
doi:10.1007/s11307-019-01320-x
更新日期:2019-12-01 00:00:00
abstract::Fluorescence molecular imaging (MI) is an important concept in preclinical research that focuses on the visualization of cellular and biological function in a non-invasive fashion to better understand in vivo disease processes and treatment effects. MI differs fundamentally from traditional preclinical imaging strateg...
journal_title:Molecular imaging and biology
pub_type: 杂志文章,评审
doi:10.1007/s11307-018-1273-0
更新日期:2019-08-01 00:00:00
abstract:PURPOSE:The purpose of this study was to determine the most useful parameter of dual-time-point 2-deoxy-2-[¹⁸F]fluoro-D: -glucose positron emission tomography/computed tomography (PET/CT) for detection of hepatic metastases in patients with colorectal cancer. PROCEDURES:Thirty-nine patients had undergone a dual-time-p...
journal_title:Molecular imaging and biology
pub_type: 杂志文章
doi:10.1007/s11307-010-0394-x
更新日期:2011-06-01 00:00:00
abstract:PURPOSE:The mTOR kinase inhibitor AZD8055 inhibits both mTORC1 and mTORC2 leading to disruption of glucose metabolism and proliferation pathways. This study assessed the impact of single and multiple doses of AZD8055 on the uptake of the glucose metabolism marker 2-deoxy-2-[(18) F]fluoro-D-glucose ([(18) F]FDG) and the...
journal_title:Molecular imaging and biology
pub_type: 杂志文章
doi:10.1007/s11307-013-0705-0
更新日期:2014-06-01 00:00:00
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pub_type: 杂志文章
doi:10.1007/s11307-012-0608-5
更新日期:2013-08-01 00:00:00
abstract:PURPOSE:2-[18F]Fluoropropionic acid (RS-[18F]FPA) has shown potential value as a short-chain fatty acid positron emission tomography (PET) tracer for the detection of liver cancer. However, RS-[18F]FPA is a mixture of 2-R-[18F]fluoropropionic acid (R-[18F]FPA) and 2-S-[18F]fluoropropionic acid (S-[18F]FPA). The aim of ...
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pub_type: 杂志文章
doi:10.1007/s11307-019-01346-1
更新日期:2019-12-01 00:00:00
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journal_title:Molecular imaging and biology
pub_type: 杂志文章
doi:10.1007/s11307-013-0617-z
更新日期:2013-08-01 00:00:00
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journal_title:Molecular imaging and biology
pub_type: 杂志文章
doi:10.1007/s11307-014-0721-8
更新日期:2014-08-01 00:00:00
abstract:PURPOSE:To assess a novel radiotracer aluminum [18F]fluoride-1,4,7-triazacyclononane-triacetic acid-pegylated dimeric RGD ([18F]ALF-NOTA-PRGD2, denoted as [18F]Alfatide) for positron emission tomography (PET)/X-ray computed tomography (CT) and explore the relationships between clinicopathological characteristics and ma...
journal_title:Molecular imaging and biology
pub_type: 杂志文章
doi:10.1007/s11307-018-1216-9
更新日期:2019-02-01 00:00:00
abstract:PURPOSE:Many radioligands have been explored for imaging the 18-kDa translocator protein (TSPO), a diagnostic and therapeutic target for inflammation and cancer. Here, we investigated the TSPO radioligand [(18)F]DPA-714 for positron emission tomography (PET) imaging of cancer and inflammation. PROCEDURES:[(18)F]DPA-71...
journal_title:Molecular imaging and biology
pub_type: 杂志文章
doi:10.1007/s11307-015-0877-x
更新日期:2016-02-01 00:00:00
abstract:PURPOSE:Negative surgical margins (NSMs) have favorable prognostic implications in breast tumor resection surgery. Fluorescence image-guided surgery (FIGS) has the ability to delineate surgical margins in real time, potentially improving the completeness of tumor resection. We have recently developed indocyanine green ...
journal_title:Molecular imaging and biology
pub_type: 杂志文章
doi:10.1007/s11307-019-01462-y
更新日期:2020-08-01 00:00:00
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journal_title:Molecular imaging and biology
pub_type: 杂志文章
doi:10.1007/s11307-010-0312-2
更新日期:2010-10-01 00:00:00
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journal_title:Molecular imaging and biology
pub_type: 杂志文章
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更新日期:2014-04-01 00:00:00
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journal_title:Molecular imaging and biology
pub_type: 杂志文章
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更新日期:2014-06-01 00:00:00
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pub_type: 杂志文章
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更新日期:2009-11-01 00:00:00