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Molecular Imaging and Biology OnlineFirst articles

23-10-2023 | Radiotherapy | Research Article

Toward a Nanoencapsulated EPR Imaging Agent for Clinical Use

Low oxygen (hypoxia) is a hallmark of rapidly growing solid tumors. Hypoxia has been indicated in a number of disease states, including anemia, renal failure, and cardiovascular disease, in addition to its central role in carcinogenesis. The …

Authors:
Rhia M. Martin, Samantha Diaz, Martin Poncelet, Benoit Driesschaert, Eugene Barth, Mrignayani Kotecha, Boris Epel, Gareth R. Eaton, Joshua R. Biller

11-10-2023 | Acute Respiratory Distress-Syndrome | Research Article

Imaging Reactive Oxygen Radicals in Excised Mouse Lung Trapped by Reaction with Hydroxylamine Probes Using 1 GHz Rapid Scan Electron Paramagnetic Resonance

Acute respiratory distress syndrome (ARDS), the most severe form of acute lung injury (ALI), is a principal cause of life-threatening illness in adults and children [ 1 – 3 ]. There is evidence that oxidative stress is critical in pathogenesis of …

Authors:
Hanan B. Elajaili, Lukas B. Woodcock, Tanden A. Hovey, George A. Rinard, Samuel DeGraw, Autumn Canny, Nathan M. Dee, Joseph P. Y. Kao, Eva S. Nozik, Sandra S. Eaton, Gareth R. Eaton

Open Access 02-10-2023 | Research Article

Pulse and CW EPR Oximetry Using Oxychip in Gemcitabine-Treated Murine Pancreatic Tumors

Low tissue oxygenation and hypoxic conditions, that develop during growth of solid tumors, favor the formation of an aggressive tumor phenotype, which has a negative impact on almost all anticancer therapies used to date [ 1 ]. Therefore …

Authors:
Gabriela Dziurman, Agnieszka Drzał, Aleksandra Anna Murzyn, Maciej Mikolaj Kmiec, Martyna Elas, Martyna Krzykawska-Serda

18-09-2023 | Sarcoma | Research Article

Evaluating Tumor Hypoxia Radiosensitization Via Electron Paramagnetic Resonance Oxygen Imaging (EPROI)

Tumor hypoxia is associated with worse prognosis, decreased local tumor control and more aggressive phenotypes; it also decreases radiation sensitivity by 3- to 5-fold [ 1 , 2 ]. Over the last 50+ years, researchers have attempted to ameliorate …

Authors:
Ashlyn G. Rickard, Yvonne M. Mowery, Alex Bassil, Douglas C. Rouse, Nerissa T. Williams, Theresa Charity, Rafaela Belloni, Brian Crouch, Nimmi Ramanujam, Daniel Stevenson, Rico Castillo, Stephanie Blocker, Boris Epel, Mrignayani Kotecha, Gregory M. Palmer

15-09-2023 | Research Article

Oxygen Imaging of a Rabbit Tumor Using a Human-Sized Pulse Electron Paramagnetic Resonance Imager

Cancer is a major public health problem worldwide and is the second leading cause of death in the USA [ 1 ]. According to government statistics, approximately 38.4% of men and women are diagnosed with cancer during their lifespans [ 2 ]. About …

Authors:
Boris Epel, Navin Viswakarma, Subramanian V. Sundramoorthy, Nitin J. Pawar, Mrignayani Kotecha

23-08-2023 | Breast Cancer | Research Article

In Vivo Electron Paramagnetic Resonance Molecular Profiling of Tumor Microenvironment upon Tumor Progression to Malignancy in an Animal Model of Breast Cancer

In recent decades, the tumor microenvironment (TME) has been recognized as a key factor in cancer progression and therapy [ 1 ]. TME includes both the physical components, such as extracellular matrix, and physiological molecular components such as …

Authors:
Timothy D. Eubank, Andrey A. Bobko, E. Hannah Hoblitzell, Marieta Gencheva, Benoit Driesschaert, Valery V. Khramtsov

Open Access 30-06-2023 | Melanoma | Review Article

Towards Characterization of Skin Melanoma in the Clinic by Electron Paramagnetic Resonance (EPR) Spectroscopy and Imaging of Melanin

The incidence of melanoma is continuously increasing over time. Melanoma is the most aggressive skin cancer, significantly reducing quality of life and survival rates of patients at advanced stages. Therefore, early diagnosis remains the key to …

Authors:
Mohammad Wehbi, Evelyne Harkemanne, Lionel Mignion, Nicolas Joudiou, Isabelle Tromme, Jean-François Baurain, Bernard Gallez

16-05-2023 | Acute Respiratory Distress-Syndrome | Research Article

Use of Electron Paramagnetic Resonance (EPR) to Evaluate Redox Status in a Preclinical Model of Acute Lung Injury

The most severe form of acute lung injury (ALI), acute respiratory distress syndrome (ARDS), is a principal cause of life-threatening illness in both adults and children. Prior to 2020, more than 190,000 cases of ARDS were reported annually in the …

Authors:
Hanan B. Elajaili, Nathan M. Dee, Sergey I. Dikalov, Joseph P. Y. Kao, Eva S. Nozik