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Kogan F, Yoon D, Teeter MG, Chaudhari AJ, Hales L, Barbieri M, Gold GE, Vainberg Y, Goyal A, Watkins L. Multimodal positron emission tomography (PET) imaging in non-oncologic musculoskeletal radiology. Skeletal Radiol 2024; 53:1833-1846. [PMID: 38492029 DOI: 10.1007/s00256-024-04640-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 02/27/2024] [Accepted: 02/28/2024] [Indexed: 03/18/2024]
Abstract
Musculoskeletal (MSK) disorders are associated with large impacts on patient's pain and quality of life. Conventional morphological imaging of tissue structure is limited in its ability to detect pain generators, early MSK disease, and rapidly assess treatment efficacy. Positron emission tomography (PET), which offers unique capabilities to evaluate molecular and metabolic processes, can provide novel information about early pathophysiologic changes that occur before structural or even microstructural changes can be detected. This sensitivity not only makes it a powerful tool for detection and characterization of disease, but also a tool able to rapidly assess the efficacy of therapies. These benefits have garnered more attention to PET imaging of MSK disorders in recent years. In this narrative review, we discuss several applications of multimodal PET imaging in non-oncologic MSK diseases including arthritis, osteoporosis, and sources of pain and inflammation. We also describe technical considerations and recent advancements in technology and radiotracers as well as areas of emerging interest for future applications of multimodal PET imaging of MSK conditions. Overall, we present evidence that the incorporation of PET through multimodal imaging offers an exciting addition to the field of MSK radiology and will likely prove valuable in the transition to an era of precision medicine.
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Affiliation(s)
- Feliks Kogan
- Department of Radiology, Stanford University, Stanford, CA, USA.
| | - Daehyun Yoon
- Department of Radiology, University of California-San Francisco, San Francisco, CA, USA
| | - Matthew G Teeter
- Department of Medical Biophysics, Western University, London, ON, Canada
| | | | - Laurel Hales
- Department of Radiology, Stanford University, Stanford, CA, USA
| | - Marco Barbieri
- Department of Radiology, Stanford University, Stanford, CA, USA
| | - Garry E Gold
- Department of Radiology, Stanford University, Stanford, CA, USA
| | - Yael Vainberg
- Department of Radiology, Stanford University, Stanford, CA, USA
| | - Ananya Goyal
- Department of Radiology, Stanford University, Stanford, CA, USA
| | - Lauren Watkins
- Department of Radiology, Stanford University, Stanford, CA, USA
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Heras-Recuero E, Blázquez-Sánchez T, Landaeta-Kancev LC, Martínez de Bourio-Allona M, Torres-Roselló A, Rengifo-García F, Caraballo-Salazar C, Largo R, Castañeda S, González-Gay MÁ. Positron Emission Tomography/Computed Tomography in Polymyalgia Rheumatica: When and for What-A Critical Review. Diagnostics (Basel) 2024; 14:1539. [PMID: 39061676 PMCID: PMC11275637 DOI: 10.3390/diagnostics14141539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2024] [Revised: 07/14/2024] [Accepted: 07/15/2024] [Indexed: 07/28/2024] Open
Abstract
Polymyalgia rheumatica (PMR) is an inflammatory disease common in people aged 50 years and older. This condition is characterized by the presence of pain and stiffness involving mainly the shoulder and pelvic girdle. Besides the frequent association with giant cell arteritis (GCA), several conditions may mimic PMR or present with PMR features. Since the diagnosis is basically clinical, an adequate diagnosis of this condition is usually required. Positron emission tomography/computed tomography (PET-CT) has proved to be a useful tool for the diagnosis of PMR. The use of 18F-FDG-PET imaging appears promising as it provides detailed information on inflammatory activity that may not be evident with traditional methods. However, since PET-CT is not strictly necessary for the diagnosis of PMR, clinicians should consider several situations in which this imaging technique can be used in patients with suspected PMR.
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Affiliation(s)
- Elena Heras-Recuero
- Division of Rheumatology, IIS-Fundación Jiménez Díaz, 28040 Madrid, Spain; (E.H.-R.); (T.B.-S.); (A.T.-R.); (F.R.-G.); (C.C.-S.); (R.L.)
| | - Teresa Blázquez-Sánchez
- Division of Rheumatology, IIS-Fundación Jiménez Díaz, 28040 Madrid, Spain; (E.H.-R.); (T.B.-S.); (A.T.-R.); (F.R.-G.); (C.C.-S.); (R.L.)
| | - Laura Cristina Landaeta-Kancev
- Department of Nuclear Medicine, Fundación Jiménez Díaz University Hospital, 28040 Madrid, Spain; (L.C.L.-K.); (M.M.d.B.-A.)
| | | | - Arantxa Torres-Roselló
- Division of Rheumatology, IIS-Fundación Jiménez Díaz, 28040 Madrid, Spain; (E.H.-R.); (T.B.-S.); (A.T.-R.); (F.R.-G.); (C.C.-S.); (R.L.)
| | - Fernando Rengifo-García
- Division of Rheumatology, IIS-Fundación Jiménez Díaz, 28040 Madrid, Spain; (E.H.-R.); (T.B.-S.); (A.T.-R.); (F.R.-G.); (C.C.-S.); (R.L.)
| | - Claritza Caraballo-Salazar
- Division of Rheumatology, IIS-Fundación Jiménez Díaz, 28040 Madrid, Spain; (E.H.-R.); (T.B.-S.); (A.T.-R.); (F.R.-G.); (C.C.-S.); (R.L.)
| | - Raquel Largo
- Division of Rheumatology, IIS-Fundación Jiménez Díaz, 28040 Madrid, Spain; (E.H.-R.); (T.B.-S.); (A.T.-R.); (F.R.-G.); (C.C.-S.); (R.L.)
| | - Santos Castañeda
- Division of Rheumatology, Hospital Universitario de La Princesa, IIS-Princesa, 28006 Madrid, Spain;
| | - Miguel Ángel González-Gay
- Division of Rheumatology, IIS-Fundación Jiménez Díaz, 28040 Madrid, Spain; (E.H.-R.); (T.B.-S.); (A.T.-R.); (F.R.-G.); (C.C.-S.); (R.L.)
- Medicine and Psychiatry Department, University of Cantabria, 39008 Santander, Spain
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Chaudhari AJ, Abdelhafez YG, Nardo L, Raychaudhuri SP. EXPLORing Arthritis with Total-body Positron Emission Tomography. Semin Musculoskelet Radiol 2023; 27:632-640. [PMID: 37935209 PMCID: PMC10689025 DOI: 10.1055/s-0043-1775746] [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: 11/09/2023]
Abstract
Arthritis has significant adverse consequences on musculoskeletal tissues and often other organs of the body. Current methods for clinical evaluation of arthritis are suboptimal, and biomarkers that are objective and measurable indicators for monitoring of arthritis disease activity are in critical demand. Recently, total-body positron emission tomography (PET) has been developed that can collect imaging signals synchronously from the entire body at ultra-low doses and reduced scan times. These scanners have increased signal collection efficiency that overcomes several limitations of standard PET scanners in the evaluation of arthritis, and they may potentially provide biomarkers to assess local and systemic impact of the arthritis disease process. This article reviews current results from using total-body PET in the assessment of common arthritic conditions, and it outlines future opportunities and challenges.
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Affiliation(s)
| | - Yasser G. Abdelhafez
- Department of Radiology, University of California, Davis, Davis, California
- Nuclear Medicine Unit, South Egypt Cancer Institute, Assiut University, Assiut, Egypt
| | - Lorenzo Nardo
- Department of Radiology, University of California, Davis, Davis, California
| | - Siba P. Raychaudhuri
- Department of Internal Medicine – Rheumatology, University of California, Davis, Davis, California
- Northern California Veterans Affairs Medical Center, Mather, California
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Sun S, Shao X, Liu X, Jiang W, Zhang L, Chen J, Wang Y, Xu T, Wu M. Assessing the feasibility of SUVindex (a metric derived from FDG PET/CT) for the diagnosis of polymyalgia rheumatica. Clin Radiol 2023; 78:737-745. [PMID: 37429761 DOI: 10.1016/j.crad.2023.06.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 06/12/2023] [Accepted: 06/18/2023] [Indexed: 07/12/2023]
Abstract
AIM To evaluate the feasibility of standard uptake value (SUV) index (ratio lesional maximum SUV [SUVmax] to liver mean SUV [SUVmean]) as a metabolic parameter for diagnosing polymyalgia rheumatica (PMR). MATERIALS AND METHODS A retrospective group of patients with PMR and controls with symptoms similar to PMR but diagnosed with other diseases. Semiquantitative and qualitative analysis of 2-[18F]-fluoro-2-deoxy-d-glucose (18F-FDG) uptake at 18 sites was undertaken for all patients. The diagnostic value of positron-emission tomography/computed tomography (PET/CT) for PMR was assessed by R software using logistic regression and a generalised additive model (GAM). All images were examined independently by two nuclear medicine physicians with extensive work experience. RESULTS The characteristic sites of PMR were the ischial tuberosity, interspinous bursa, periarticular hip, and symphysis pubis enthesis. The area under the curve (AUC) of the characteristic site SUV index was 0.930, and the best cut-off value was 1.685 with a sensitivity of 84.6% and a specificity of 92.6%. After adjusting for potential confounders, the probability of PMR diagnosis increased as the characteristic site SUV index increased and there was a nonlinear correlation between the two. When the characteristic site SUV index was ≥2.56, the probability of PMR gradually reached the threshold effect, which was as high as 90% or more. CONCLUSION The characteristic site SUV index is an independent factor for diagnosing PMR, and PMR should be highly suspected when it is ≥ 1.685. Nonetheless, it is important to note that these findings are based on an initial retrospective single-centre study and require external validation and further prospective evaluation before being translated into clinical practice.
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Affiliation(s)
- S Sun
- Department of Rheumatology and Immunology, The Third Affiliated Hospital of Soochow University, Changzhou, China
| | - X Shao
- Department of Nuclear Medicine, The Third Affiliated Hospital of Soochow University, Changzhou, China
| | - X Liu
- Department of Rheumatology and Immunology, The Third Affiliated Hospital of Soochow University, Changzhou, China
| | - W Jiang
- Department of Rheumatology and Immunology, The Third Affiliated Hospital of Soochow University, Changzhou, China
| | - L Zhang
- Department of Rheumatology and Immunology, The Third Affiliated Hospital of Soochow University, Changzhou, China
| | - J Chen
- Department of Rheumatology and Immunology, The Third Affiliated Hospital of Soochow University, Changzhou, China
| | - Y Wang
- Department of Nuclear Medicine, The Third Affiliated Hospital of Soochow University, Changzhou, China
| | - T Xu
- Department of Rheumatology and Immunology, The Third Affiliated Hospital of Soochow University, Changzhou, China
| | - M Wu
- Department of Rheumatology and Immunology, The Third Affiliated Hospital of Soochow University, Changzhou, China.
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Wang D, Liu Z, Guo H, Yang L, Zhang X, Peng L, Cheng M, Jiang H. Headache attributed to giant cell arteritis complicated with rheumatic polymyalgia diagnosed with F18-fluorodeoxyglucose positron emission tomography and computed tomography: a case report. Front Neurol 2023; 14:1241676. [PMID: 37767532 PMCID: PMC10520721 DOI: 10.3389/fneur.2023.1241676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Accepted: 08/14/2023] [Indexed: 09/29/2023] Open
Abstract
Giant cell arteritis (GCA) is a kind of systemic vasculitis affecting individuals over 50 years old and is often the cause of new-onset headaches in older adults. Patients with GCA sometimes have rheumatic polymyalgia (PMR). The diagnosis of GCA generally depends on clinical manifestation, elevated erythrocyte sedimentation rate (ESR) or C-reactive protein, and positive imaging findings commonly obtained by ultrasound or temporal artery biopsy. In this study, we report a case of an 83-year-old woman with a new-onset headache and an elevated ESR. The result of the temporal artery ultrasound did not distinguish between vasculitis and atherosclerosis. The F18-fluorodeoxyglucose positron emission tomography and computed tomography (18F FDG PET-CT) were performed and suggested large vessel vasculitis with temporal artery involvement. In addition, polyarticular synovitis and bursitis were also revealed. Finally, the diagnosis of secondary headache attributed to CGA complicated with PMR was established. The patient experienced remission of symptoms after glucocorticoid therapy. PET can become a powerful tool for diagnosis and differential diagnosis when the ultrasound result is ambiguous and a biopsy is not obtained.
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Affiliation(s)
- Dong Wang
- Department of Neurology, Peking University People's Hospital, Beijing, China
| | - Zunjing Liu
- Department of Neurology, Peking University People's Hospital, Beijing, China
| | - Huailian Guo
- Department of Neurology, Peking University People's Hospital, Beijing, China
| | - Li Yang
- Department of Ultrasound, Peking University People's Hospital, Beijing, China
| | - Xinhua Zhang
- Department of Neurology, Peking University People's Hospital, Beijing, China
| | - Li Peng
- Department of Neurology, Peking University People's Hospital, Beijing, China
| | - Min Cheng
- Department of Neurology, Peking University People's Hospital, Beijing, China
| | - Hong Jiang
- Department of Neurology, Peking University People's Hospital, Beijing, China
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Mekenyan L, Karalilova R, Todorov P, Tepeliev N, Batalov A. Imaging methods in polymyalgia rheumatica: a systematic review. Rheumatol Int 2023; 43:825-840. [PMID: 36853338 DOI: 10.1007/s00296-023-05284-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 01/30/2023] [Indexed: 03/01/2023]
Abstract
Polymyalgia rheumatica (PMR) is an inflammatory joint disease in patients over 50 years of age with pain and prolonged morning stiffness in the shoulder and hip girdles and neck. The lack of specific clinical findings, laboratory signs, biomarker and established imaging methods makes it difficult to diagnose patients with this disease. The aim of the systematic review is to present the literature data on the use of imaging methods for early diagnosis, assessment of disease activity and therapeutic response in PMR. At the same time, the advantages, disadvantages and contraindications of each method are considered. A literature search was carried out in PubMed and Scopus up to June 2022. Studies were selected that met the following criteria: (1) English language publications in peer-reviewed journals, (2) cohort or case-control studies and a series of more than five clinical cases, (3) studies of newly diagnosed or suspected PMR patients according to classification criteria or expert opinion, (4) imaging evaluation of articular, extraarticular and vascular impairment in PMR. Out of a total of 1431 publications, 61 articles were selected, which differed in the imaging techniques used: radiography (5), scintigraphy (4), magnetic resonance imaging (14), PET/CT (14) and ultrasound (24). Prevalence of extraarticular involvement (tendons, entheses and bursae) was identified in patients with PMR. In a significant number of cases, subclinical vasculitis of the large vessels was found, confirming the common pathogenetic pathways of the two diseases. The diagnostic, therapeutic and prognostic potential of imaging methods in PMR has been relatively poorly studied and remains to be clarified.
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Affiliation(s)
- L Mekenyan
- Department of Propedeutics of Internal Diseases, Medical University-Plovdiv, Plovdiv, Bulgaria.
- Rheumatology Clinic, University Hospital "Kaspela"-Plovdiv, Plovdiv, Bulgaria.
- Clinic of Rheumatology, Medical University of Plovdiv, University Hospital "Kaspela", 64 Sofia Str., 4001, Plovdiv, Bulgaria.
| | - R Karalilova
- Department of Propedeutics of Internal Diseases, Medical University-Plovdiv, Plovdiv, Bulgaria
- Rheumatology Clinic, University Hospital "Kaspela"-Plovdiv, Plovdiv, Bulgaria
| | - P Todorov
- Department of Propedeutics of Internal Diseases, Medical University-Plovdiv, Plovdiv, Bulgaria
- Rheumatology Clinic, University Hospital "Kaspela"-Plovdiv, Plovdiv, Bulgaria
| | - N Tepeliev
- Department of Propedeutics of Internal Diseases, Medical University-Plovdiv, Plovdiv, Bulgaria
- Rheumatology Clinic, University Hospital "Kaspela"-Plovdiv, Plovdiv, Bulgaria
| | - A Batalov
- Department of Propedeutics of Internal Diseases, Medical University-Plovdiv, Plovdiv, Bulgaria
- Rheumatology Clinic, University Hospital "Kaspela"-Plovdiv, Plovdiv, Bulgaria
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7
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Nazerani-Zemann T, Stanzel S, Gstettner C, Aigner RM, Pernthaler B. F18-FDG PET/CT in a patient with Antisynthetase Syndrome. Nuklearmedizin 2023; 62:73-74. [PMID: 36599440 PMCID: PMC10063341 DOI: 10.1055/a-1996-0157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
More prevalent in women than men, Antisynthetase Syndrome is a rare and poorly defined autoimmune disease associated with interstitial lung disease, polymyositis, and dermatomyositis. In addition to various diagnostic tools, imaging modalities are needed in certain situations. A 42-year-old woman with Anti-Jo-1-positive Antisynthetase Syndrome presented with thoracic muscular pain. She underwent whole-body Fluorodeoxyglucose positron emission tomography/computed tomography (F18-FDG PET/CT) to evaluate the total extent of the muscles affected. Depicting symptomatic symmetric myositis of the intercostal muscles, F18-FDG PET/CT additionally revealed unusually extensive fasciitis of the lower extremities.
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Affiliation(s)
- Tina Nazerani-Zemann
- Radiology, Division of Nuclear Medicine, Medizinische Universität Graz, Graz, Austria
| | - Susanne Stanzel
- Radiology, Division of Nuclear Medicine, Medizinische Universität Graz, Graz, Austria
| | - Christian Gstettner
- Radiology, Division of Nuclear Medicine, Medizinische Universität Graz, Graz, Austria
| | - Reingard Maria Aigner
- Radiology, Division of Nuclear Medicine, Medizinische Universität Graz, Graz, Austria
| | - Birgit Pernthaler
- Radiology, Division of Nuclear Medicine, Medizinische Universität Graz, Graz, Austria
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Abstract
OBJECTIVE To identify the clinical characteristics, treatment, and prognosis of relapsing polychondritis patients with airway involvement. METHODS Twenty-eight patients with relapsing polychondritis, hospitalised in the First Hospital of Shanxi Medical University between April 2011 and April 2021, were retrospectively analysed. RESULTS Fifty per cent of relapsing polychondritis patients with airway involvement had a lower risk of ear and ocular involvement. Relapsing polychondritis patients with airway involvement had a longer time-to-diagnosis (p < 0.001), a poorer outcome following glucocorticoid combined with immunosuppressant treatment (p = 0.004), and a higher recurrence rate than those without airway involvement (p = 0.004). The rates of positive findings on chest computed tomography and bronchoscopy in relapsing polychondritis patients with airway involvement were 88.9 per cent and 85.7 per cent, respectively. Laryngoscopy analysis showed that 66.7 per cent of relapsing polychondritis patients had varying degrees of mucosal lesions. CONCLUSION For relapsing polychondritis patients with airway involvement, drug treatment should be combined with local airway management.
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Pean De Ponfilly – Sotier M, Seror R, Nocturne G, Besson FL. 18F-FDG PET molecular imaging: A relevant tool to investigate chronic inflammatory rheumatisms in clinical practice? Front Med (Lausanne) 2022; 9:1070445. [PMID: 36530882 PMCID: PMC9748427 DOI: 10.3389/fmed.2022.1070445] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Accepted: 11/15/2022] [Indexed: 12/31/2023] Open
Abstract
18F-Labeled Fluorodeoxyglucose-Positron Emission Tomography (18F-FDG PET) is a molecular imaging tool commonly used in practice for the assessment of many cancers. Thanks to its properties, its use has been progressively extended to numerous inflammatory conditions, including chronic inflammatory rheumatism (CIR) such as rheumatoid arthritis (RA), spondylarthritis (SpAs) and polymyalgia rheumatica (PMR). 18F-FDG PET is currently not recommended for the diagnostic of CIRs. However, this whole-body imaging tool has emerged in clinical practice, providing a general overview of systemic involvement occurring in CIRs. Numerous studies have highlighted the capacity of 18F-FDG PET to detect articular and extra articular involvements in RA and PMR. However, the lack of specificity of 18F-FDG limits its use for diagnosis purpose. Finally, the key question is the definition of the best way to integrate this whole-body imaging tool in the patient's management workflow.
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Affiliation(s)
| | - Raphaële Seror
- Rheumatology, AP-HP. Université Paris-Saclay, Hôpital Bicêtre, Le Kremlin-Bicêtre, France
- Faculté de Médecine, Université Paris-Saclay, Le Kremlin-Bicêtre, France
- Université Paris-Saclay, INSERM, CEA, Centre de Recherche en Immunologie des Infections Virales et des Maladies Auto-immunes, Le Kremlin-Bicêtre, France
| | - Gaetane Nocturne
- Rheumatology, AP-HP. Université Paris-Saclay, Hôpital Bicêtre, Le Kremlin-Bicêtre, France
- Faculté de Médecine, Université Paris-Saclay, Le Kremlin-Bicêtre, France
- Université Paris-Saclay, INSERM, CEA, Centre de Recherche en Immunologie des Infections Virales et des Maladies Auto-immunes, Le Kremlin-Bicêtre, France
| | - Florent L. Besson
- Faculté de Médecine, Université Paris-Saclay, Le Kremlin-Bicêtre, France
- Biophysics and Nuclear Medicine-Molecular Imaging, AP-HP. Université Paris-Saclay, Hôpital Bicêtre, Le Kremlin-Bicêtre, France
- Université Paris-Saclay, CEA, CNRS, Inserm, BioMaps, Orsay, France
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Park PSU, McDonald E, Singh SB, Raynor WY, Werner TJ, Høilund-Carlsen PF, Alavi A. The effects of limb laterality and age on the inflammation and bone turnover of the acromioclavicular shoulder joint: 18 F-fluorodeoxyglucose and 18 F-sodium-fluoride-PET/computed tomography study. Nucl Med Commun 2022; 43:922-927. [PMID: 35634806 DOI: 10.1097/mnm.0000000000001588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
PURPOSE The acromioclavicular (AC) joint is a common site of injury and degenerative changes such as osteoarthritis (OA) of the shoulder. Physical manifestations of OA are preceded by molecular changes, detection of which may enhance early prophylaxis and monitoring of disease progression. In this study, we investigate the use of 18 F-FDG and 18 F-NaF-PET/CT to assess the effects of limb laterality and age on the inflammation and bone turnover of the AC shoulder joint. METHODS We analyzed FDG and NaF-PET/CT scans of 41 females (mean age of 43.9 ± 14.2 years) and 45 males (mean age of 44.5 ± 13.8 years) using a semiquantitative technique based on predefined ROI. RESULTS There was a greater NaF uptake in the right side of the AC joint compared with the left in both females (left: 2.22 ± 1.00; right: 3.08 ± 1.18; P < 0.0001) and males (left: 2.57 ± 1.49; right: 2.99 ± 1.40; P = 0.003). No consistent correlation between age and NaF or FDG uptakes were found in both females and males. There was also a positive correlation between FDG and NaF uptakes in both left ( P = 0.01; r = 0.37) and right ( P = 0.0006; r = 0.53) AC joints of male subjects. CONCLUSION Our study is the first to reveal the varying effect of right-left limb laterality and aging on FDG and NaF uptake at the AC joint. Future studies correlating the history of shoulder trauma, pain, and degenerative change with FDG and NaF-PET/CT findings will be critical in the adoption of molecular imaging in the clinical setting.
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Affiliation(s)
- Peter Sang Uk Park
- Department of Radiology, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Elysia McDonald
- Department of Radiology, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Shashi Bhushan Singh
- Department of Radiology, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - William Y Raynor
- Department of Radiology, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Thomas J Werner
- Department of Radiology, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Poul Flemming Høilund-Carlsen
- Department of Nuclear Medicine, Odense University Hospital
- Department of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - Abass Alavi
- Department of Radiology, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA
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11
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Xu Y, Chen Y, Zhang X, Ma J, Liu Y, Cui L, Wang F. Glycolysis in Innate Immune Cells Contributes to Autoimmunity. Front Immunol 2022; 13:920029. [PMID: 35844594 PMCID: PMC9284233 DOI: 10.3389/fimmu.2022.920029] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Accepted: 05/31/2022] [Indexed: 12/12/2022] Open
Abstract
Autoimmune diseases (AIDs) refer to connective tissue inflammation caused by aberrant autoantibodies resulting from dysfunctional immune surveillance. Most of the current treatments for AIDs use non-selective immunosuppressive agents. Although these therapies successfully control the disease process, patients experience significant side effects, particularly an increased risk of infection. There is a great need to study the pathogenesis of AIDs to facilitate the development of selective inhibitors for inflammatory signaling to overcome the limitations of traditional therapies. Immune cells alter their predominant metabolic profile from mitochondrial respiration to glycolysis in AIDs. This metabolic reprogramming, known to occur in adaptive immune cells, i.e., B and T lymphocytes, is critical to the pathogenesis of connective tissue inflammation. At the cellular level, this metabolic switch involves multiple signaling molecules, including serine–threonine protein kinase, mammalian target of rapamycin, and phosphoinositide 3-kinase. Although glycolysis is less efficient than mitochondrial respiration in terms of ATP production, immune cells can promote disease progression by enhancing glycolysis to satisfy cellular functions. Recent studies have shown that active glycolytic metabolism may also account for the cellular physiology of innate immune cells in AIDs. However, the mechanism by which glycolysis affects innate immunity and participates in the pathogenesis of AIDs remains to be elucidated. Therefore, we reviewed the molecular mechanisms, including key enzymes, signaling pathways, and inflammatory factors, that could explain the relationship between glycolysis and the pro-inflammatory phenotype of innate immune cells such as neutrophils, macrophages, and dendritic cells. Additionally, we summarize the impact of glycolysis on the pathophysiological processes of AIDs, including systemic lupus erythematosus, rheumatoid arthritis, vasculitis, and ankylosing spondylitis, and discuss potential therapeutic targets. The discovery that immune cell metabolism characterized by glycolysis may regulate inflammation broadens the avenues for treating AIDs by modulating immune cell metabolism.
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Affiliation(s)
- Yue Xu
- Department of Rheumatology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China
| | - Yongkang Chen
- Department of Laboratory Medicine, Peking University Third Hospital, Beijing, China
| | - Xuan Zhang
- Department of Rheumatology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China
| | - Jie Ma
- Center of Biotherapy, Beijing Hospital, National Center of Gerontology; Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China
| | - Yudong Liu
- Department of Rheumatology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China
| | - Liyan Cui
- Department of Laboratory Medicine, Peking University Third Hospital, Beijing, China
- *Correspondence: Liyan Cui, ; Fang Wang,
| | - Fang Wang
- Department of Rheumatology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China
- *Correspondence: Liyan Cui, ; Fang Wang,
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12
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Almeida LS, de Souza SPM, de Souza FVP, Reis F, Ramos CD. Multimodality Molecular Imaging in Arthropathy Associated with Multiple Myeloma. Indian J Nucl Med 2022; 37:290-292. [PMID: 36686291 PMCID: PMC9855246 DOI: 10.4103/ijnm.ijnm_205_21] [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: 12/19/2021] [Revised: 02/12/2022] [Accepted: 02/23/2022] [Indexed: 11/05/2022] Open
Abstract
We report a patient with multiple myeloma (MM) and polyarthritis of large joints. During the staging of the disease, bone marrow diffusely involved by MM was clearly demonstrated by 99mTc-2-methoxy-isobutyl-isonitrile (MIBI) single-photon emission computed tomography/computed tomography (SPECT/CT) but not by 18F-fluorodeoxyglucose (18F-FDG) positron emission tomography/CT images. On the other hand, a very intense uptake of 18F-FDG was detected in periarticular tissues of multiple joints, with nonabnormal 99mTc-MIBI accumulation. Rheumatology tests were negative. A subsequent bone scintigraphy demonstrated radiolabeled bisphosphonate accumulation in periarticular tissues, suggesting amyloid arthropathy.
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Affiliation(s)
- Ludmila Santiago Almeida
- Department of Radiology, Division of Nuclear Medicine, Faculty of Medical Sciences, University of Campinas, São Paulo, Brazil
| | | | | | - Fabiano Reis
- Department of Radiology, Faculty of Medical Sciences, University of Campinas, São Paulo, Brazil
| | - Celso Dario Ramos
- Department of Radiology, Division of Nuclear Medicine, Faculty of Medical Sciences, University of Campinas, São Paulo, Brazil
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13
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Systematic Review: Targeted Molecular Imaging of Angiogenesis and Its Mediators in Rheumatoid Arthritis. Int J Mol Sci 2022; 23:ijms23137071. [PMID: 35806074 PMCID: PMC9267012 DOI: 10.3390/ijms23137071] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 06/23/2022] [Accepted: 06/23/2022] [Indexed: 12/14/2022] Open
Abstract
Extensive angiogenesis is a characteristic feature in the synovial tissue of rheumatoid arthritis (RA) from a very early stage of the disease onward and constitutes a crucial event for the development of the proliferative synovium. This process is markedly intensified in patients with prolonged disease duration, high disease activity, disease severity, and significant inflammatory cell infiltration. Angiogenesis is therefore an interesting target for the development of new therapeutic approaches as well as disease monitoring strategies in RA. To this end, nuclear imaging modalities represent valuable non-invasive tools that can selectively target molecular markers of angiogenesis and accurately and quantitatively track molecular changes in multiple joints simultaneously. This systematic review summarizes the imaging markers used for single photon emission computed tomography (SPECT) and/or positron emission tomography (PET) approaches, targeting pathways and mediators involved in synovial neo-angiogenesis in RA.
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14
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Ge L, Fu Z, Wei Y, Shi D, Geng Y, Fan H, Zhang R, Zhang Y, Li S, Wang S, Shi H, Song G, Pan J, Cheng K, Wang L. Preclinical evaluation and pilot clinical study of [ 18F]AlF-NOTA-FAPI-04 for PET imaging of rheumatoid arthritis. Eur J Nucl Med Mol Imaging 2022; 49:4025-4036. [PMID: 35715613 DOI: 10.1007/s00259-022-05836-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Accepted: 05/08/2022] [Indexed: 11/04/2022]
Abstract
PURPOSE Fibroblast-like synoviocytes (FLSs) are key effector cells in the inflamed joints of patients with rheumatoid arthritis (RA). Previous studies have suggested that fibroblast activation protein (FAP) is highly expressed in RA-derived FLSs and is a specific marker of activated RA FLSs. In this study, we developed aluminum-[18F]-labeled 1,4,7-triazacyclononane-N,N',N″-triacetic acid-conjugated FAP inhibitor 04 ([18F]AlF-NOTA-FAPI-04) to image RA-FLSs in vitro and arthritic joints in collagen-induced arthritis (CIA) mice and RA patients. METHODS RA FLSs and NIH3T3 cells transfected with FAP were used to perform in vitro-binding studies. Biodistribution was conducted in normal DBA1 mice. Collagen-induced arthritis (CIA) models with different arthritis scores were subjected to [18F]AlF-NOTA-FAPI-04 and 18F-FDG PET imaging. Histological examinations were performed to evaluate FAP expression and Cy3 dye-labeled FAPI-04(Cy3-FAPI-04) uptake. Blocking studies with excess unlabeled FAPI-04 in CIA mice and NIH3T3 xenografts in immunocompromised mice were used to evaluate the binding specificity of [18F]AlF-NOTA-FAPI-04. Additionally, [18F]AlF-NOTA-FAPI-04 PET imaging was performed on two RA patients. RESULTS The binding of [18F]AlF-NOTA-FAPI-04 increased significantly in RA FLSs and NIH3T3 cells overexpressing FAP compared to their parental controls (FAP-GFP-NIH3T3 vs. GFP-NIH3T3, 2.40 ± 0.078 vs. 0.297 ± 0.05% AD/105 cells; RA FLSs vs. OA FLSs, 1.54 ± 0.064 vs. 0.343 ± 0.056% AD/105 cells). Compared to 18F-FDG imaging, [18F]AlF-NOTA-FAPI-04 showed high uptake in inflamed joints in the early stage of arthritis, which was positively correlated with the arthritic scores (Pearson r=0.834, P<0.001). In addition, the binding of [18F]AlF-NOTA-FAPI-04 to cells with high FAP expression and the uptake of [18F]AlF-NOTA-FAPI-04 in arthritic joints both could be blocked by excessive unlabeled FAPI-04. Fluorescent staining showed that the intensity of Cy3-FAPI-04 binding to FAP increased accordingly as the expression of FAP protein increased in cells and tissue sections. Furthermore, the uptake of [18F]AlF-NOTA-FAPI-04 in FAP-GFP-NIH3T3 xenografts was significantly higher than that in GFP-NIH3T3 xenograft (35.44 ± 4.27 vs 7.92 ± 1.83% ID/mL). Finally, [18F]AlF-NOTA-FAPI-04 PET/CT imaging in RA patients revealed nonphysiologically high tracer uptake in the synovium of arthritic joints. CONCLUSION [18F]AlF-NOTA-FAPI-04 is a promising radiotracer for imaging RA FLSs and could potentially complement the current noninvasive diagnostic parameters.
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Affiliation(s)
- Luna Ge
- Department of Rheumatology and Autoimmunology, The First Affiliated Hospital of Shandong First Medical University, Ji'nan, 250014, Shandong, China.,Biomedical Sciences College & Shandong Medicinal Biotechnology Centre, Shandong First Medical University & Shandong Academy of Medical Sciences; NHC Key Laboratory of Biotechnology Drugs (Shandong Academy of Medical Sciences); Key Lab for Rare & Uncommon Diseases of Shandong Province, Ji'nan, 250117, Shandong, China
| | - Zheng Fu
- Department of PET/CT Center, Shandong Cancer Hospital and Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, Ji'nan, 250117, Shandong, China
| | - Yuchun Wei
- Department of Radiology, Shandong Cancer Hospital and Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, Ji'nan, 250117, Shandong, China
| | - Dandan Shi
- Biomedical Sciences College & Shandong Medicinal Biotechnology Centre, Shandong First Medical University & Shandong Academy of Medical Sciences; NHC Key Laboratory of Biotechnology Drugs (Shandong Academy of Medical Sciences); Key Lab for Rare & Uncommon Diseases of Shandong Province, Ji'nan, 250117, Shandong, China
| | - Yun Geng
- Shandong First Medical University & Shandong Academy of Medical Sciences, Ji'nan, 250117, Shandong, China
| | - Huancai Fan
- Biomedical Sciences College & Shandong Medicinal Biotechnology Centre, Shandong First Medical University & Shandong Academy of Medical Sciences; NHC Key Laboratory of Biotechnology Drugs (Shandong Academy of Medical Sciences); Key Lab for Rare & Uncommon Diseases of Shandong Province, Ji'nan, 250117, Shandong, China
| | - Ruojia Zhang
- Biomedical Sciences College & Shandong Medicinal Biotechnology Centre, Shandong First Medical University & Shandong Academy of Medical Sciences; NHC Key Laboratory of Biotechnology Drugs (Shandong Academy of Medical Sciences); Key Lab for Rare & Uncommon Diseases of Shandong Province, Ji'nan, 250117, Shandong, China
| | - Yuang Zhang
- Department of Rheumatology and Autoimmunology, The First Affiliated Hospital of Shandong First Medical University, Ji'nan, 250014, Shandong, China.,Biomedical Sciences College & Shandong Medicinal Biotechnology Centre, Shandong First Medical University & Shandong Academy of Medical Sciences; NHC Key Laboratory of Biotechnology Drugs (Shandong Academy of Medical Sciences); Key Lab for Rare & Uncommon Diseases of Shandong Province, Ji'nan, 250117, Shandong, China
| | - Shufeng Li
- Department of Orthopedic Surgery, The First Affiliated Hospital of Shandong First Medical University, Ji'nan, 250014, Shandong, China
| | - Shijie Wang
- Department of Radiology, Shandong Cancer Hospital and Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, Ji'nan, 250117, Shandong, China
| | - Haojun Shi
- The Second Clinical Medical College, Henan University of Chinese Medicine, Zhengzhou, China
| | - Guanhua Song
- Institute of Basic Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Ji'nan, 250117, Shandong, China
| | - Jihong Pan
- Department of Rheumatology and Autoimmunology, The First Affiliated Hospital of Shandong First Medical University, Ji'nan, 250014, Shandong, China.,Biomedical Sciences College & Shandong Medicinal Biotechnology Centre, Shandong First Medical University & Shandong Academy of Medical Sciences; NHC Key Laboratory of Biotechnology Drugs (Shandong Academy of Medical Sciences); Key Lab for Rare & Uncommon Diseases of Shandong Province, Ji'nan, 250117, Shandong, China
| | - Kai Cheng
- Department of PET/CT Center, Shandong Cancer Hospital and Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, Ji'nan, 250117, Shandong, China.
| | - Lin Wang
- Department of Rheumatology and Autoimmunology, The First Affiliated Hospital of Shandong First Medical University, Ji'nan, 250014, Shandong, China. .,Biomedical Sciences College & Shandong Medicinal Biotechnology Centre, Shandong First Medical University & Shandong Academy of Medical Sciences; NHC Key Laboratory of Biotechnology Drugs (Shandong Academy of Medical Sciences); Key Lab for Rare & Uncommon Diseases of Shandong Province, Ji'nan, 250117, Shandong, China.
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15
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The Combination of 18F-Fluorodeoxyglucose Positron Emission Tomography Metabolic and Clinical Parameters Can Effectively Distinguish Rheumatoid Arthritis and Polymyalgia Rheumatic. CONTRAST MEDIA & MOLECULAR IMAGING 2022; 2022:9614678. [PMID: 35494209 PMCID: PMC9017536 DOI: 10.1155/2022/9614678] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 03/25/2022] [Indexed: 11/18/2022]
Abstract
Objective To evaluate 18F-fluorodeoxyglucose positron emission tomography (18FDG PET) and clinical parameters to differentiate rheumatoid arthritis (RA) and polymyalgia rheumatic (PMR). Patients and Methods. This retrospective study evaluated 54 patients with suspected RA (n = 23) and PMR (n = 31) who underwent 18F-FDG PET/CT before treatment. The complete diagnosis was based on each classification criterion and at least followed up for 6 months. Demographic and clinical data were also collected. Semiquantitative analysis (maximum standardized uptake value, SUVmax) of abnormal 18F-FDG uptake was undertaken at 17 musculoskeletal sites, and two scoring systems (mean reference (liver/control) scores) were evaluated. The differential diagnostic efficacy of each independent parameter was evaluated using the receiver operating characteristic (ROC) curve. Integrated discriminatory improvement (IDI) and bootstrap tests were used to evaluate the improvement in diagnostic efficacy using a combination of multiple parameters. Results The ROC curve analysis of SUVmax indicated that the interspinous ligament showed the highest discriminative diagnostic value (sensitivity, 64.5%; specificity, 78.3%; area under the curve (AUC), 0.764; positive predictive value, 0.800; negative predictive value, 0.621). The combined model with the rheumatoid factor (RF) and metabolic parameters of 18F-FDG PET resulted in the highest AUC of 0.892 and showed significant reclassification by IDI (IDI, 9.51%; 95% confidence interval: 0.021–0.175; P = 0.013). According to the bootstrap test, compared with RF alone, the combination of RF and metabolic parameters showed an improvement in ROC and was statistically significant (P = 0.017). Conclusions The combination of 18F-FDG PET metabolic and clinical parameters can further improve the differential diagnosis of RA and PMR.
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16
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Wan S. Positron emission tomography/magnetic resonance imaging in musculoskeletal benign conditions. THE QUARTERLY JOURNAL OF NUCLEAR MEDICINE AND MOLECULAR IMAGING : OFFICIAL PUBLICATION OF THE ITALIAN ASSOCIATION OF NUCLEAR MEDICINE (AIMN) [AND] THE INTERNATIONAL ASSOCIATION OF RADIOPHARMACOLOGY (IAR), [AND] SECTION OF THE SOCIETY OF... 2022; 66:31-42. [PMID: 35119250 DOI: 10.23736/s1824-4785.22.03443-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
A wide spectrum of benign musculoskeletal (orthopedic and rheumatological) conditions affect the general population. Collectively, these are common, and they can inflict significant morbidity with resultant negative impact on the quality of life of patients. For many of these conditions, there is established evidence for research and clinical use of PETCT and MRI for assessment of disease. Introduction of integrated PET/MRI around a decade ago brought optimism that combining the strength of PET and MRI techniques on a single platform could have synergistic effect to benefit imaging assessment of patients, including in the context of benign musculoskeletal conditions. This review specifically focuses on the progress that has been made. This aims to showcase clinical studies derived primarily from the integrated PET/MRI platforms for the evaluation of common orthopedic and rheumatological conditions. Despite enthusiasm and progress by early adopters of the PET/MRI technology, significant barriers are present for its wider adoption, validation, and translation to routine clinical practice. Attenuation correction is a particular challenge which affects regions close to the skeleton and impacts PET/MRI assessment of musculoskeletal disorders. Continued effort on research and validation, as well as promotion of its multimodal multiparametric capability to clinical and pharmaceutical stakeholders, and increased availability through increased adoption of PET/MRI scanners internationally, may accelerate its translation into routine clinical practice in this domain.
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Affiliation(s)
- Simon Wan
- Institute of Nuclear Medicine, University College Hospital, London, UK -
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17
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Ulijn E, den Broeder AA, Boers N, Gotthardt M, Bouman CAM, Landewé R, den Broeder N, van Herwaarden N. Extra-articular findings with FDG-PET/CT in rheumatoid arthritis patients: more harm than benefit. Rheumatol Adv Pract 2022; 6:rkac014. [PMID: 35311064 PMCID: PMC8924972 DOI: 10.1093/rap/rkac014] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 02/15/2022] [Indexed: 11/14/2022] Open
Abstract
ABSTRACT
Objective
Whole-body Positron Emission Tomography with CT-scanning using fluorine-18 fluorodeoxyglucose (18F-FDG) is occasionally used in rheumatoid arthritis (RA) patients to detect arthritis. FDG-PET/CT might also detect malignancies, but the amount of incidental findings and the number of relevant malignant disease that could be missed are currently unknown. We aimed to study the malignancy screening performance of whole-body FDG-PET/CT in longstanding RA patients with low disease activity.
Methods
FDG-PET/CT-scanning was done in the intervention arm of the Dose REduction Strategy of Subcutaneous TNF-inhibitors (DRESS) study, a randomized controlled trial on dose-tapering of biological Disease Modifying Anti-Rheumatic Drugs (bDMARDs). The reference standard was clinical diagnosis of malignancy during the 3 year follow-up of the study. Prevalence of extra-articular abnormalities, follow-up, and treatments were summarized post-hoc.
Results
121 scans were made in 79 patients. Extra-articular abnormalities were found in 59/121 (49%) scans, resulting in additional diagnostic procedures in 21/79 (26.6%) patients. Nine patients (7.4%) were suspected of malignancy, none turned out to be malignant. Six clinical malignancies that developed during follow-up were all negative on baseline FDG-PET/CT.
Conclusion
Whole-body FDG-PET/CT-scanning used in RA patients for imaging of arthritis results in frequent incidental extra-articular findings, while some who apparently had normal scans also developed malignancies.
Trial registration
Netherlands Trial Register, www.trialregister.nl, NL6771
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Affiliation(s)
- Evy Ulijn
- Department of Rheumatology, Sint Maartenskliniek, Nijmegen, the Netherlands
| | - Alfons A den Broeder
- Department of Rheumatology, Sint Maartenskliniek, Nijmegen, the Netherlands
- Department of Rheumatology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Nadine Boers
- Department of Rheumatology, Sint Maartenskliniek, Nijmegen, the Netherlands
| | - Martin Gotthardt
- Radiology Nuclear Medicine, Radboud Institute for Molecular Life Sciences, Nijmegen, the Netherlands
| | - Chantal A M Bouman
- Department of Rheumatology, Sint Maartenskliniek, Nijmegen, the Netherlands
- Department of Rheumatology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Robert Landewé
- Department of Rheumatology and Clinical immunology, Amsterdam Medical Center, Amsterdam, the Netherlands
| | - Nathan den Broeder
- Department of Rheumatology, Sint Maartenskliniek, Nijmegen, the Netherlands
| | - Noortje van Herwaarden
- Department of Rheumatology, Sint Maartenskliniek, Nijmegen, the Netherlands
- Department of Pharmacology-Toxicology, Radboud University Medical Center, Nijmegen, The Netherlands
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18
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Wang S, Hou Y, Li X, Meng X, Zhang Y, Wang X. Practical Implementation of Artificial Intelligence-Based Deep Learning and Cloud Computing on the Application of Traditional Medicine and Western Medicine in the Diagnosis and Treatment of Rheumatoid Arthritis. Front Pharmacol 2022; 12:765435. [PMID: 35002704 PMCID: PMC8733656 DOI: 10.3389/fphar.2021.765435] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Accepted: 12/09/2021] [Indexed: 12/23/2022] Open
Abstract
Rheumatoid arthritis (RA), an autoimmune disease of unknown etiology, is a serious threat to the health of middle-aged and elderly people. Although western medicine, traditional medicine such as traditional Chinese medicine, Tibetan medicine and other ethnic medicine have shown certain advantages in the diagnosis and treatment of RA, there are still some practical shortcomings, such as delayed diagnosis, improper treatment scheme and unclear drug mechanism. At present, the applications of artificial intelligence (AI)-based deep learning and cloud computing has aroused wide attention in the medical and health field, especially in screening potential active ingredients, targets and action pathways of single drugs or prescriptions in traditional medicine and optimizing disease diagnosis and treatment models. Integrated information and analysis of RA patients based on AI and medical big data will unquestionably benefit more RA patients worldwide. In this review, we mainly elaborated the application status and prospect of AI-assisted deep learning and cloud computation-oriented western medicine and traditional medicine on the diagnosis and treatment of RA in different stages. It can be predicted that with the help of AI, more pharmacological mechanisms of effective ethnic drugs against RA will be elucidated and more accurate solutions will be provided for the treatment and diagnosis of RA in the future.
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Affiliation(s)
- Shaohui Wang
- School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Ya Hou
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xuanhao Li
- Chengdu Second People's Hospital, Chengdu, China
| | - Xianli Meng
- State Key Laboratory of Southwestern Chinese Medicine Resources, Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yi Zhang
- School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xiaobo Wang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
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19
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Signore A, Catalano OA, Esfahani SA, Lauri C. PET Imaging of Autoimmune Diseases and Inflammatory Bowel Diseases. Nucl Med Mol Imaging 2022. [DOI: 10.1016/b978-0-12-822960-6.00112-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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20
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Putative Association between Low Baseline Gene Expression in the Peripheral Blood and Clinical Remission in Rheumatoid Arthritis Patients Treated with Tofacitinib. Life (Basel) 2021; 11:life11121385. [PMID: 34947916 PMCID: PMC8705250 DOI: 10.3390/life11121385] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 12/06/2021] [Accepted: 12/08/2021] [Indexed: 12/24/2022] Open
Abstract
We investigated the importance of the baseline expression of genes involved in energy generation, as prognostic biomarkers of the treatment response to tofacitinib in patients with rheumatoid arthritis (RA). Peripheral blood samples were obtained from 28 patients with RA who received 3 months of tofacitinib therapy from 26 healthy controls. Clinical response was evaluated based on the disease activity score, the erythrocyte sedimentation rate (DAS28-ESR), and the serum levels of ACPA, RF, CRP, and ESR. Clinical remission was assessed based on DAS28 score <2.6. Protein concentrations were measured using ELISA. Total RNA isolated from whole blood was used for gene expression analysis using quantitative RT-PCR. All patients were diagnosed with Steinbrocker’s radiographic stage II-III at baseline, and most showed erosive arthritis with ACPA and RF positivity. Tofacitinib treatment significantly decreased the disease activity. Upon study completion, seven patients showed remission. Before and after TOFA therapy, a significantly higher expression of succinate dehydrogenase and pyruvate kinase genes was observed in all the examined patients compared to healthy subjects. However, the pre-therapy expression of these genes and corresponding proteins was significantly (p ≤ 0.05) lower in patients who showed remission than in other patients with RA. Moreover, we observed that, during follow-up, patients who developed remission showed an increasing trend in the expression of the examined genes, whereas the others showed some decreases in gene expression, although this was not statistically significant. We concluded that, compared with RA patients maintaining persistent moderate or high disease activity, those with clinical remission following tofacitinib treatment showed a significantly lower baseline expression of genes involved in energy generation.
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Fukuda K, Mizobuchi T, Nakajima I, Kishimoto T, Miura Y, Taniguchi Y. Ocular Involvement in Relapsing Polychondritis. J Clin Med 2021; 10:jcm10214970. [PMID: 34768492 PMCID: PMC8584789 DOI: 10.3390/jcm10214970] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 10/15/2021] [Accepted: 10/21/2021] [Indexed: 01/17/2023] Open
Abstract
Relapsing polychondritis (RPC) is a rare systemic immune-mediated disease characterized by recurrent inflammation of cartilaginous and proteoglycan-rich tissues throughout the body. Auricular, nasal, tracheal, and articular chondritis and arthritis are common systemic symptoms in patients with RPC. Ocular tissues are also targets of inflammation in RPC, and a variety of ocular symptoms are observed in approximately half of the patients with RPC. Scleritis/episcleritis, uveitis, and conjunctivitis are common symptoms associated with RPC. Less frequently, keratitis, retinopathy, optic neuropathy, muscle palsy, and orbital inflammation are also observed. Ocular inflammation could also be the first manifestation of RPC. Although RPC is a potentially fatal and sight-threatening disease, the rarity of the disease and its protean clinical presentation may lead to delayed diagnosis or misdiagnosis. Given the high prevalence of ocular involvement in RPC, to avoid misdiagnosis, physicians should be suspicious of RPC when they see patients with recurrent ocular inflammatory conditions and various systemic symptoms. In this article, we provide a comprehensive review of ocular manifestations associated with RPC.
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Affiliation(s)
- Ken Fukuda
- Department of Ophthalmology and Visual Science, Kochi Medical School, Kochi University, Nankoku, Kochi 783-8505, Japan; (T.M.); (I.N.); (T.K.); (Y.M.)
- Correspondence: ; Tel.: +81-88880-2391
| | - Tomoka Mizobuchi
- Department of Ophthalmology and Visual Science, Kochi Medical School, Kochi University, Nankoku, Kochi 783-8505, Japan; (T.M.); (I.N.); (T.K.); (Y.M.)
| | - Isana Nakajima
- Department of Ophthalmology and Visual Science, Kochi Medical School, Kochi University, Nankoku, Kochi 783-8505, Japan; (T.M.); (I.N.); (T.K.); (Y.M.)
| | - Tatsuma Kishimoto
- Department of Ophthalmology and Visual Science, Kochi Medical School, Kochi University, Nankoku, Kochi 783-8505, Japan; (T.M.); (I.N.); (T.K.); (Y.M.)
| | - Yusaku Miura
- Department of Ophthalmology and Visual Science, Kochi Medical School, Kochi University, Nankoku, Kochi 783-8505, Japan; (T.M.); (I.N.); (T.K.); (Y.M.)
| | - Yoshinori Taniguchi
- Department of Endocrinology, Metabolism, Nephrology and Rheumatology, Kochi Medical School Hospital, Kochi University, Nankoku, Kochi 783-8505, Japan;
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22
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de Pablo P, Dinnes J, Berhane S, Osman A, Lim Z, Coombe A, Raza K, Filer A, Deeks JJ. Systematic review of imaging tests to predict the development of rheumatoid arthritis in people with unclassified arthritis. Semin Arthritis Rheum 2021; 52:151919. [PMID: 34782180 DOI: 10.1016/j.semarthrit.2021.10.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2021] [Revised: 09/16/2021] [Accepted: 10/18/2021] [Indexed: 11/19/2022]
Abstract
OBJECTIVE To estimate and compare the diagnostic accuracy of magnetic resonance imaging (MRI) and ultrasound, for the prediction of rheumatoid arthritis (RA) in unclassified arthritis (UA). METHODS MEDLINE, Embase and BIOSIS were searched from 1987 to May 2019. Studies evaluating any imaging test in participants with UA were eligible. Reference standards were RA classification criteria or methotrexate initiation. Two authors independently extracted data and assessed validity using QUADAS-2. Sensitivities and specificities were calculated for each imaging characteristic and joint area. Summary estimates with 95% confidence intervals (CI) were estimated where possible. RESULTS Nineteen studies were included; 13 evaluated MRI (n=1,143; 454 with RA) and 6 evaluated ultrasound (n=531; 205 with RA). Studies were limited by unclear recruitment procedures, inclusion of patients with RA at baseline, differential verification, lack of blinding and consensus grading. Study heterogeneity largely precluded meta-analysis, however summary sensitivity and specificity for MRI synovitis in at least one joint were 93% (95% CI 88%, 96%) and 25% (95% CI 13%, 41%) (3 studies). Specificities may be higher for other MRI characteristics but data are limited. Ultrasound results were difficult to synthesise due to different diagnostic thresholds and reference standards. CONCLUSION The evidence for MRI or ultrasound as single tests for predicting RA in people with UA is heterogeneous and of variable methodological quality. Larger studies using consensus grading and consistently defined RA diagnosis are needed to identify whether combinations of imaging characteristics, either alone or in combination with other clinical findings, can better predict RA in this population.
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Affiliation(s)
- Paola de Pablo
- Institute of Inflammation and Ageing, College of Medical & Dental Sciences, University of Birmingham, Birmingham, UK; Sandwell and West Birmingham Hospitals NHS Trust, Birmingham, UK; NIHR Birmingham Biomedical Research Centre, University Hospitals Birmingham NHS Foundation Trust and University of Birmingham, Birmingham, UK
| | - Jacqueline Dinnes
- NIHR Birmingham Biomedical Research Centre, University Hospitals Birmingham NHS Foundation Trust and University of Birmingham, Birmingham, UK; Test Evaluation Research Group, Institute of Applied Health Research, University of Birmingham, Birmingham, UK.
| | - Sarah Berhane
- NIHR Birmingham Biomedical Research Centre, University Hospitals Birmingham NHS Foundation Trust and University of Birmingham, Birmingham, UK; Test Evaluation Research Group, Institute of Applied Health Research, University of Birmingham, Birmingham, UK
| | - Aya Osman
- Institute of Inflammation and Ageing, College of Medical & Dental Sciences, University of Birmingham, Birmingham, UK
| | - Zhia Lim
- Institute of Inflammation and Ageing, College of Medical & Dental Sciences, University of Birmingham, Birmingham, UK
| | - April Coombe
- Test Evaluation Research Group, Institute of Applied Health Research, University of Birmingham, Birmingham, UK
| | - Karim Raza
- Institute of Inflammation and Ageing, College of Medical & Dental Sciences, University of Birmingham, Birmingham, UK; Sandwell and West Birmingham Hospitals NHS Trust, Birmingham, UK; NIHR Birmingham Biomedical Research Centre, University Hospitals Birmingham NHS Foundation Trust and University of Birmingham, Birmingham, UK
| | - Andrew Filer
- Institute of Inflammation and Ageing, College of Medical & Dental Sciences, University of Birmingham, Birmingham, UK; NIHR Birmingham Biomedical Research Centre, University Hospitals Birmingham NHS Foundation Trust and University of Birmingham, Birmingham, UK
| | - Jonathan J Deeks
- NIHR Birmingham Biomedical Research Centre, University Hospitals Birmingham NHS Foundation Trust and University of Birmingham, Birmingham, UK; Test Evaluation Research Group, Institute of Applied Health Research, University of Birmingham, Birmingham, UK
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Chen Z, Li Y, Wang Q, Weng S, Zhou Y, Zhu J. Fluorine-18 labeled fluorodeoxyglucose positron emission tomography/computed tomography used in diagnosing connective tissue diseases in fever of unknown origin/inflammatory of unknown origin patients. Clin Rheumatol 2021; 41:839-846. [PMID: 34674082 DOI: 10.1007/s10067-021-05965-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 09/25/2021] [Accepted: 10/11/2021] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To explore the significance of Fluorine-18 labeled fluorodeoxyglucose (FDG) positron emission tomography/computed tomography (PET/CT) in diagnosing connective tissue diseases (CTDs) in fever of unknown origin (FUO) or inflammation of unknown origin (IUO) patients. METHODS Clinical and image data of 242 consecutive FUO/IUO patients who underwent PET/CT examination and eventually diagnosed CTDs were retrospectively analyzed, including distribution of diseases, clinical characteristics, and PET/CT imaging findings. The role of FDG PET/CT in differential diagnosis of CTDs was evaluated through clinical questionnaire survey. RESULTS Patients diagnosed as CTDs accounted for 48.1% of FUO/IUO patients. Among them, adult-onset Still's disease was most frequently diagnosed. Other common diseases included systemic vasculitis, undifferentiated connective tissue disease, rheumatoid arthritis, idiopathic inflammatory myopathy, systemic lupus erythematosus, and polymyalgia rheumatica. On FDG PET/CT examination, 97.9% of the patients had positive findings. Inflammatory lesions were detected in 66.5% and non-specific abnormal uptakes were found in 31.4%. Detected lesions distributed consistently with corresponding susceptible organs and tissues in various diseases. Clinical questionnaire results shown that FDG PET/CT excluded malignant tumors, focal infections, or other typical CTDs in 45.5% of the patients; indicated important diagnostic clues or appropriate biopsy sites in 20.6% of patients; and directly suggested the diagnosis of a CTD in 33.1% of patients. CONCLUSION FDG PET/CT could reveal inflammatory lesions in organs and tissues that reflect the clinical characteristics in different CTDs, thus providing an objective evidence for differential diagnosis, classification, and treatment decision of these diseases. Key Points • FDG PET/CT is a useful tool for differential diagnosing connective tissue diseases among patients with fever of unknown origin/inflammatory of unknown origin.
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Affiliation(s)
- Ziwei Chen
- Department of Nuclear Medicine, Peking University People's Hospital, No.11 Xizhimen South Street, Xicheng District, Beijing, 100044, China
| | - Yuan Li
- Department of Nuclear Medicine, Peking University People's Hospital, No.11 Xizhimen South Street, Xicheng District, Beijing, 100044, China
| | - Qian Wang
- Department of Nuclear Medicine, Peking University People's Hospital, No.11 Xizhimen South Street, Xicheng District, Beijing, 100044, China.
| | - Shijia Weng
- Department of Nuclear Medicine, Peking University People's Hospital, No.11 Xizhimen South Street, Xicheng District, Beijing, 100044, China
| | - Yunshan Zhou
- Department of Rheumatology and Immunology, Peking University People's Hospital, No.11 Xizhimen South Street, Xicheng District, Beijing, 100044, China
| | - Jihong Zhu
- Department of Emergency, Peking University People's Hospital, No.11 Xizhimen South Street, Xicheng District, Beijing, 100044, China
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TNF induces glycolytic shift in fibroblast like synoviocytes via GLUT1 and HIF1A. Sci Rep 2021; 11:19385. [PMID: 34588517 PMCID: PMC8481345 DOI: 10.1038/s41598-021-98651-z] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 09/09/2021] [Indexed: 12/02/2022] Open
Abstract
TNF is a central cytokine in the pathogenesis of rheumatoid arthritis (RA). Elevated level of TNF causes local inflammation that affects immune cells and fibroblast-like synoviocytes (FLS). Nowadays, only 20–30% of patients experience remission after the standard of care therapy—antibodies against TNF. Interestingly, responders show reduced levels of GLUT1 and GAPDH, highlighting a potential link to cellular metabolism. The aim of the study was to investigate whether TNF directly affects the metabolic phenotype of FLS. Real-time respirometry displayed TNF-induced upregulation of glycolysis along with a modest increase of oxidative phosphorylation in FLS from healthy donors. In addition, TNF stimulation enhanced HIF1A and GLUT1 expression. The upregulation of HIF1A and GLUT1 reflects their enriched level in FLS from RA patients (RA-FLS). The inhibition of TAK1, HIF1a and hexokinase deciphered the importance of TNF/TAK1/HIF1A/glycolysis signaling axis. To prove that inhibition of glycolysis reduced the pathogenic phenotype, we showed that 2-deoxyglucose, a hexokinase inhibitor, partially decreased secretion of RA biomarkers. In summary, we identified a direct role of TNF on glycolytic reprogramming of FLS and confirmed the potency of immunometabolism for RA. Further studies are needed to evaluate the therapeutic impact especially regarding non-responder data.
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25
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Pijl JP, Nienhuis PH, Kwee TC, Glaudemans AWJM, Slart RHJA, Gormsen LC. Limitations and Pitfalls of FDG-PET/CT in Infection and Inflammation. Semin Nucl Med 2021; 51:633-645. [PMID: 34246448 DOI: 10.1053/j.semnuclmed.2021.06.008] [Citation(s) in RCA: 57] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
White blood cells activated by either a pathogen or as part of a systemic inflammatory disease are characterized by high energy consumption and are therefore taking up the glucose analogue PET tracer FDG avidly. It is therefore not surprising that a steadily growing body of research and clinical reports now supports the use of FDG PET/CT to diagnose a wide range of patients with non-oncological diseases. However, using FDG PET/CT in patients with infectious or inflammatory diseases has some limitations and potential pitfalls that are not necessarily as pronounced in oncology FDG PET/CT. Some of these limitations are of a general nature and related to the laborious acquisition of PET images in patients that are often acutely ill, whereas others are more disease-specific and related to the particular metabolism in some of the organs most commonly affected by infections or inflammatory disease. Both inflammatory and infectious diseases are characterized by a more diffuse and less pathognomonic pattern of FDG uptake than oncology FDG PET/CT and the affected organs also typically have some physiological FDG uptake. In addition, patients referred to PET/CT with suspected infection or inflammation are rarely treatment naïve and may have received varying doses of antibiotics, corticosteroids or other immune-modulating drugs at the time of their examination. Combined, this results in a higher rate of false positive FDG findings and also in some cases a lower sensitivity to detect active disease. In this review, we therefore discuss the limitations and pitfalls of FDG PET/CT to diagnose infections and inflammation taking these issues into consideration. Our review encompasses the most commonly encountered inflammatory and infectious diseases in head and neck, in the cardiovascular system, in the abdominal organs and in the musculoskeletal system. Finally, new developments in the field of PET/CT that may help overcome some of these limitations are briefly highlighted.
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Affiliation(s)
- Jordy P Pijl
- Medical Imaging Center, Departments of Radiology, Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, Groningen
| | - Pieter H Nienhuis
- Medical Imaging Center, Departments of Radiology, Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, Groningen
| | - Thomas C Kwee
- Medical Imaging Center, Departments of Radiology, Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, Groningen
| | - Andor W J M Glaudemans
- Medical Imaging Center, Departments of Radiology, Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, Groningen
| | - Riemer H J A Slart
- Medical Imaging Center, Departments of Radiology, Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, Groningen; Faculty of Science and Technology, Department of Biomedical Photonic Imaging, University of Twente, Enschede
| | - Lars C Gormsen
- Department of Nuclear Medicine & PET Center, Aarhus University Hospital, Aarhus N.
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Characteristics and Clinical Value of 18F-FDG PET/CT in the Management of Adult-Onset Still's Disease: 35 Cases. J Clin Med 2021; 10:jcm10112489. [PMID: 34199846 PMCID: PMC8200084 DOI: 10.3390/jcm10112489] [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: 04/16/2021] [Revised: 05/31/2021] [Accepted: 06/02/2021] [Indexed: 12/11/2022] Open
Abstract
While the diagnosis of adult-onset Still’s disease (AOSD) involves the exclusion of differential diagnoses, the characteristics and value of 18F-Fluorodeoxyglucose (18F-FDG) Positron Emission Tomography coupled with CT (PET/CT) in the management of AOSD remain poorly known. Our retrospective study included patients from four centers, fulfilling Yamaguchi or Fautrel criteria, who underwent a PET/CT during an active AOSD. Thirty-five patients were included. At the time of PET/CT, the Yamaguchi criteria were met in 23 of 29 evaluable cases. PET/CT showed bone marrow (74.3%), lymph node (74.3%), and splenic (48.6%) FDG uptake. Despite arthralgia or arthritis in most patients, joints were rarely the sites of 18F-FDG accumulation. The spatial distribution of 18F-FDG uptake was nonspecific, and its intensity could be similar to malignant disease. Lymph node or bone marrow biopsy was performed after PET/CT in 20 patients (57.1%). The intensity of bone marrow; splenic and lymph node hypermetabolism appeared to be correlated with disease activity. Abnormal PET/CT in the cervical lymph nodes and age ≥ 60 years seemed to be predictive factors for monocyclic evolution. The clinical value of PET/CT is not in direct diagnosis; but as an aid in excluding differential diagnoses by searching for their scintigraphic features and guiding biopsy.
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Flaus A, Amat J, Prevot N, Olagne L, Descamps L, Bouvet C, Barres B, Valla C, Mathieu S, Andre M, Soubrier M, Merlin C, Kelly A, Chanchou M, Cachin F. Decision Tree With Only Two Musculoskeletal Sites to Diagnose Polymyalgia Rheumatica Using [ 18F]FDG PET-CT. Front Med (Lausanne) 2021; 8:646974. [PMID: 33681267 PMCID: PMC7928279 DOI: 10.3389/fmed.2021.646974] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Accepted: 01/28/2021] [Indexed: 12/25/2022] Open
Abstract
Introduction: The aim of this study was to find the best ordered combination of two FDG positive musculoskeletal sites with a machine learning algorithm to diagnose polymyalgia rheumatica (PMR) vs. other rheumatisms in a cohort of patients with inflammatory rheumatisms. Methods: This retrospective study included 140 patients who underwent [18F]FDG PET-CT and whose final diagnosis was inflammatory rheumatism. The cohort was randomized, stratified on the final diagnosis into a training and a validation cohort. FDG uptake of 17 musculoskeletal sites was evaluated visually and set positive if uptake was at least equal to that of the liver. A decision tree classifier was trained and validated to find the best combination of two positives sites to diagnose PMR. Diagnosis performances were measured first, for each musculoskeletal site, secondly for combination of two positive sites and thirdly using the decision tree created with machine learning. Results: 55 patients with PMR and 85 patients with other inflammatory rheumatisms were included. Musculoskeletal sites, used either individually or in combination of two, were highly imbalanced to diagnose PMR with a high specificity and a low sensitivity. The machine learning algorithm identified an optimal ordered combination of two sites to diagnose PMR. This required a positive interspinous bursa or, if negative, a positive trochanteric bursa. Following the decision tree, sensitivity and specificity to diagnose PMR were respectively 73.2 and 87.5% in the training cohort and 78.6 and 80.1% in the validation cohort. Conclusion: Ordered combination of two visually positive sites leads to PMR diagnosis with an accurate sensitivity and specificity vs. other rheumatisms in a large cohort of patients with inflammatory rheumatisms.
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Affiliation(s)
- Anthime Flaus
- Department of Nuclear Medicine, Saint-Etienne University Hospital, University of Saint-Etienne, Saint-Etienne, France
| | - Julie Amat
- Department of Nuclear Medicine, Jean Perrin Oncology Institute of Clermont-Ferrand, Clermont-Ferrand, France
| | - Nathalie Prevot
- Department of Nuclear Medicine, Saint-Etienne University Hospital, University of Saint-Etienne, Saint-Etienne, France.,Institut national de la santé et de la recherche médicale, U 1059 Sainbiose, Université Jean Monnet, Saint-Etienne, France
| | - Louis Olagne
- Department of Internal Medicine, Gabriel Montpied University Hospital, University of Clermont-Ferrand, Clermont-Ferrand, France
| | - Lucie Descamps
- Department of Rheumatology, Gabriel Montpied University Hospital, University of Clermont-Ferrand, Clermont-Ferrand, France
| | - Clément Bouvet
- Department of Nuclear Medicine, Jean Perrin Oncology Institute of Clermont-Ferrand, Clermont-Ferrand, France
| | - Bertrand Barres
- Department of Nuclear Medicine, Jean Perrin Oncology Institute of Clermont-Ferrand, Clermont-Ferrand, France
| | - Clémence Valla
- Department of Nuclear Medicine, Jean Perrin Oncology Institute of Clermont-Ferrand, Clermont-Ferrand, France
| | - Sylvain Mathieu
- Department of Rheumatology, Gabriel Montpied University Hospital, University of Clermont-Ferrand, Clermont-Ferrand, France
| | - Marc Andre
- Department of Internal Medicine, Gabriel Montpied University Hospital, University of Clermont-Ferrand, Clermont-Ferrand, France
| | - Martin Soubrier
- Department of Rheumatology, Gabriel Montpied University Hospital, University of Clermont-Ferrand, Clermont-Ferrand, France
| | - Charles Merlin
- Department of Nuclear Medicine, Jean Perrin Oncology Institute of Clermont-Ferrand, Clermont-Ferrand, France
| | - Antony Kelly
- Department of Nuclear Medicine, Jean Perrin Oncology Institute of Clermont-Ferrand, Clermont-Ferrand, France
| | - Marion Chanchou
- Department of Nuclear Medicine, Jean Perrin Oncology Institute of Clermont-Ferrand, Clermont-Ferrand, France
| | - Florent Cachin
- Department of Nuclear Medicine, Jean Perrin Oncology Institute of Clermont-Ferrand, Clermont-Ferrand, France
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Hotta M, Minamimoto R, Kaneko H, Yamashita H. Fluorodeoxyglucose PET/CT of Arthritis in Rheumatic Diseases: A Pictorial Review. Radiographics 2021; 40:223-240. [PMID: 31917663 DOI: 10.1148/rg.2020190047] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Rheumatic diseases are various painful conditions that affect joints, bones, cartilage, tendons, ligaments, and muscles. Arthritis is a typical condition of rheumatic disease. Although rheumatoid arthritis is a representative rheumatic disease, various diseases other than rheumatoid arthritis can also affect joints, and differential diagnosis of rheumatic diseases is often difficult owing to the similar clinical manifestations. However, accurate diagnosis is crucial for an appropriate treatment strategy. The utility of fluorine 18 fluorodeoxyglucose (FDG) PET/CT has been established, and it is widely used for assessing malignancies. In addition to accumulating in tumor cells, FDG also accumulates in inflammatory tissue, allowing FDG PET/CT to demonstrate arthritis. PET/CT allows evaluation of whole-body articular and extra-articular lesions in one examination, representing a key advantage over US and MRI, which allow assessment of only a few regions because of their limited field of view. Although FDG PET/CT is sensitive for detecting inflammatory lesions, the uptake itself is nonspecific; therefore, knowledge of characteristic uptake patterns is necessary to narrow the differential diagnosis in rheumatic disease. Furthermore, pathognomonic extra-articular findings such as vasculitis, skin lesions, lymphadenopathy, and chondritis play an important role in achieving accurate diagnosis. The authors present the FDG PET/CT appearances of (a) rheumatoid arthritis and allied disorders (polymyalgia rheumatica, remitting seronegative symmetrical synovitis with pitting edema, adult-onset Still disease), (b) spondyloarthritis (ankylosing spondylitis, psoriatic arthritis, reactive arthritis, inflammatory bowel disease arthritis, SAPHO [synovitis, acne, pustulosis, hyperostosis, and osteitis] syndrome, chronic recurrent multifocal osteomyelitis), and (c) miscellaneous systemic disorders with arthropathy (relapsing polychondritis, multicentric reticulohistiocytosis, amyloidosis, sarcoidosis, hemophilia). ©RSNA, 2020.
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Affiliation(s)
- Masatoshi Hotta
- From the Division of Nuclear Medicine, Department of Radiology (M.H., R.M.), and Division of Rheumatic Diseases (H.K., H.Y.), National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku-ku, Tokyo 162-8655, Japan
| | - Ryogo Minamimoto
- From the Division of Nuclear Medicine, Department of Radiology (M.H., R.M.), and Division of Rheumatic Diseases (H.K., H.Y.), National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku-ku, Tokyo 162-8655, Japan
| | - Hiroshi Kaneko
- From the Division of Nuclear Medicine, Department of Radiology (M.H., R.M.), and Division of Rheumatic Diseases (H.K., H.Y.), National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku-ku, Tokyo 162-8655, Japan
| | - Hiroyuki Yamashita
- From the Division of Nuclear Medicine, Department of Radiology (M.H., R.M.), and Division of Rheumatic Diseases (H.K., H.Y.), National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku-ku, Tokyo 162-8655, Japan
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Jones MA, MacCuaig WM, Frickenstein AN, Camalan S, Gurcan MN, Holter-Chakrabarty J, Morris KT, McNally MW, Booth KK, Carter S, Grizzle WE, McNally LR. Molecular Imaging of Inflammatory Disease. Biomedicines 2021; 9:152. [PMID: 33557374 PMCID: PMC7914540 DOI: 10.3390/biomedicines9020152] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 01/25/2021] [Accepted: 01/31/2021] [Indexed: 02/06/2023] Open
Abstract
Inflammatory diseases include a wide variety of highly prevalent conditions with high mortality rates in severe cases ranging from cardiovascular disease, to rheumatoid arthritis, to chronic obstructive pulmonary disease, to graft vs. host disease, to a number of gastrointestinal disorders. Many diseases that are not considered inflammatory per se are associated with varying levels of inflammation. Imaging of the immune system and inflammatory response is of interest as it can give insight into disease progression and severity. Clinical imaging technologies such as computed tomography (CT) and magnetic resonance imaging (MRI) are traditionally limited to the visualization of anatomical information; then, the presence or absence of an inflammatory state must be inferred from the structural abnormalities. Improvement in available contrast agents has made it possible to obtain functional information as well as anatomical. In vivo imaging of inflammation ultimately facilitates an improved accuracy of diagnostics and monitoring of patients to allow for better patient care. Highly specific molecular imaging of inflammatory biomarkers allows for earlier diagnosis to prevent irreversible damage. Advancements in imaging instruments, targeted tracers, and contrast agents represent a rapidly growing area of preclinical research with the hopes of quick translation to the clinic.
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Affiliation(s)
- Meredith A. Jones
- Stephenson School of Biomedical Engineering, University of Oklahoma, Norman, OK 73019, USA; (M.A.J.); (W.M.M.); (A.N.F.)
- Stephenson Cancer Center, University of Oklahoma, Oklahoma City, OK 73104, USA; (J.H.-C.); (K.T.M.); (M.W.M.); (K.K.B.); (S.C.)
| | - William M. MacCuaig
- Stephenson School of Biomedical Engineering, University of Oklahoma, Norman, OK 73019, USA; (M.A.J.); (W.M.M.); (A.N.F.)
- Stephenson Cancer Center, University of Oklahoma, Oklahoma City, OK 73104, USA; (J.H.-C.); (K.T.M.); (M.W.M.); (K.K.B.); (S.C.)
| | - Alex N. Frickenstein
- Stephenson School of Biomedical Engineering, University of Oklahoma, Norman, OK 73019, USA; (M.A.J.); (W.M.M.); (A.N.F.)
- Stephenson Cancer Center, University of Oklahoma, Oklahoma City, OK 73104, USA; (J.H.-C.); (K.T.M.); (M.W.M.); (K.K.B.); (S.C.)
| | - Seda Camalan
- Department of Internal Medicine, Wake Forest Baptist Health, Winston-Salem, NC 27157, USA; (S.C.); (M.N.G.)
| | - Metin N. Gurcan
- Department of Internal Medicine, Wake Forest Baptist Health, Winston-Salem, NC 27157, USA; (S.C.); (M.N.G.)
| | - Jennifer Holter-Chakrabarty
- Stephenson Cancer Center, University of Oklahoma, Oklahoma City, OK 73104, USA; (J.H.-C.); (K.T.M.); (M.W.M.); (K.K.B.); (S.C.)
- Department of Medicine, University of Oklahoma, Oklahoma City, OK 73104, USA
| | - Katherine T. Morris
- Stephenson Cancer Center, University of Oklahoma, Oklahoma City, OK 73104, USA; (J.H.-C.); (K.T.M.); (M.W.M.); (K.K.B.); (S.C.)
- Department of Surgery, University of Oklahoma, Oklahoma City, OK 73104, USA
| | - Molly W. McNally
- Stephenson Cancer Center, University of Oklahoma, Oklahoma City, OK 73104, USA; (J.H.-C.); (K.T.M.); (M.W.M.); (K.K.B.); (S.C.)
| | - Kristina K. Booth
- Stephenson Cancer Center, University of Oklahoma, Oklahoma City, OK 73104, USA; (J.H.-C.); (K.T.M.); (M.W.M.); (K.K.B.); (S.C.)
- Department of Surgery, University of Oklahoma, Oklahoma City, OK 73104, USA
| | - Steven Carter
- Stephenson Cancer Center, University of Oklahoma, Oklahoma City, OK 73104, USA; (J.H.-C.); (K.T.M.); (M.W.M.); (K.K.B.); (S.C.)
- Department of Surgery, University of Oklahoma, Oklahoma City, OK 73104, USA
| | - William E. Grizzle
- Department of Pathology, University of Alabama at Birmingham, Birmingham, AL 35294, USA;
| | - Lacey R. McNally
- Stephenson Cancer Center, University of Oklahoma, Oklahoma City, OK 73104, USA; (J.H.-C.); (K.T.M.); (M.W.M.); (K.K.B.); (S.C.)
- Department of Surgery, University of Oklahoma, Oklahoma City, OK 73104, USA
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Ramon A, Guillibert-Karras C, Milas-Julien L, Garrot JF, Maillefert JF, Ornetti P. The frequency of occult solid malignancy in patients with polymyalgia rheumatica-like symptoms. Ther Adv Musculoskelet Dis 2021; 13:1759720X20984275. [PMID: 33552239 PMCID: PMC7844447 DOI: 10.1177/1759720x20984275] [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: 09/10/2020] [Accepted: 12/04/2020] [Indexed: 11/25/2022] Open
Abstract
Aims: We aim to evaluate the clinical usefulness of systematic screening for occult cancer in patients with polymyalgia rheumatic (PMR)-like symptoms in real-life practice. Methods: All patients seen by rheumatologists in Burgundy, France, between March 2016 and December 2018 for new-onset PMR that met the 2012 ACR/EULAR classification criteria were prospectively included. Patients underwent systematic screening including determination of the erythrocyte sedimentation rate, serum C-reactive protein levels, thoracic, abdominal and pelvic computed tomography (CT-TAP) and, in men, serum prostate-specific antigen. The standardized incidence ratio (SIR) for cancers was calculated using 2012 national estimates of cancer incidence. Potential predictive factors for the diagnosis of cancer were then evaluated using univariate and multivariate analyses. Results: Among the 118 patients included, nine cases of cancer were confirmed and diagnosed with CT-TAP: kidney carcinoma (n = 4), lung cancer (n = 2), pancreatic, colon, and ampullary carcinoma (n = 1 each). Among these cancers, five were localized (four kidney, and one ampullary carcinoma) and were treated with complete surgical resection. The expected incidence of cancer in the general population was 1.95, leading to an overall SIR of 4.6 (95% CI 2.4–8.9, p < 0.0001). An additional analysis was performed for the kidney carcinoma, and it showed a highly significant increase in SIR: 80.8 (95% CI 30.3–215.4). In 80% of patients, the PMR-like syndrome regressed during cancer treatment. No other predictive factors for cancer were found. Conclusion: Systematic screening for cancer including CT-TAP in real-life practice revealed occult solid malignancy, mostly early-stage cancer, in a relevant proportion of patients presenting PMR-like symptoms. The high proportion of kidney cancer (40%) is worth highlighting, especially considering that it is not one of the most frequent cancers after 50 years of age.
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Affiliation(s)
- André Ramon
- Department of Rheumatology, Dijon University Hospital, Dijon, France
| | | | | | | | | | - Paul Ornetti
- Department of Rheumatology, INSERM, CIC 1432, Module Plurithématique, Plateforme d'Investigation Technologique, Dijon University Hospital, Dijon, France
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The role of 18F-FDG PET/CT in the diagnosis of frozen shoulder. Knee Surg Sports Traumatol Arthrosc 2021; 29:210-215. [PMID: 32170356 DOI: 10.1007/s00167-020-05937-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Accepted: 02/28/2020] [Indexed: 10/24/2022]
Abstract
PURPOSE Frozen shoulder is characterized by pain and reduced passive movement capability, and the diagnose is made clinically. However, pain is the major symptom in the first stage before stiffness occurs, and the condition can be mistaken for subacromial impingement. This study explored the possibility to use positron emission tomography/computed tomography (PET/CT) with a 18F Flour-Deoxy-Glucose (FDG) tracer in the diagnostic process. METHODS Eleven patients with frozen shoulder and 9 patients with subacromial impingement received a 18F-FDG PET/CT scan before being treated surgically. During arthroscopy, the diagnoses were confirmed. Images were blindly analyzed visually by two nuclear medicine physicians. Also, semi-quantified analysis applying a set of standard regions was performed, and standard uptake value in both shoulder regions was recorded. RESULTS Both the visual description of the pictures and the semi-quantified analysis generally showed increased FDG uptake in the affected shoulder regions of patients that had frozen shoulder and no uptake in patients with subacromial impingement. Kappa for interobserver agreement in the visual assessments was 0.74. Sensitivity was 92% and specificity 93% of the visual assessment, 77% and 93%, respectively, of the semi-quantified analyses, and by combining the two types of analyses sensitivity was 100% and specificity was 93% for the distinction between frozen shoulders and subacromial impingement/unaffected shoulders. CONCLUSION 18F-FDG PET/CT seems to be a valid method to diagnose frozen shoulder. This is clinically relevant in diagnostically challenging cases, for instance in the first phase of frozen shoulder, which can be difficult to distinguish from subacromial impingement. LEVEL OF EVIDENCE II.
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32
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Filippi L, Caruso G, Bagni O, Ciacciarelli M, Polidoro A, Iuliano L. Rheumatoid arthritis with generalized lymphadenopathy mimicking lymphoma on positron emission tomography/computed tomography with 18F-fluorodeoxyglucose. Indian J Nucl Med 2021; 36:449-450. [PMID: 35125770 PMCID: PMC8771054 DOI: 10.4103/ijnm.ijnm_57_21] [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: 04/29/2021] [Accepted: 05/29/2021] [Indexed: 11/04/2022] Open
Abstract
A 42-year-old male presented with weight loss and progressively increasing pain and swelling in joints over the past 3 months. Contrast-enhanced computed tomography (CT) demonstrated pleuropulmonary opacities and supra/infradiaphragmatic lymph nodes enlargement. Positron emission tomography (PET/CT) with 18F-fluorodeoxyglucose showed intensely increased tracer uptake in joints, in pulmonary opacities, as well as in thoracic, iliac, and inguinal nodes. On suspicion of lymphoma with synovial involvement, he was submitted to lymph node and synovial biopsy, which revealed reactive follicular lymphadenopathy and synovium inflammatory changes, respectively. Rheumatoid factor resulted increased, and thus, diagnosis of rheumatoid arthritis with related lung and lymph node involvement was made.
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Chaudhari AJ, Raynor WY, Gholamrezanezhad A, Werner TJ, Rajapakse CS, Alavi A. Total-Body PET Imaging of Musculoskeletal Disorders. PET Clin 2021; 16:99-117. [PMID: 33218607 PMCID: PMC7684980 DOI: 10.1016/j.cpet.2020.09.012] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Imaging of musculoskeletal disorders, including arthritis, infection, osteoporosis, sarcopenia, and malignancies, is often limited when using conventional modalities such as radiography, computed tomography (CT), and MR imaging. As a result of recent advances in Positron Emission Tomography (PET) instrumentation, total-body PET/CT offers a longer axial field-of-view, higher geometric sensitivity, and higher spatial resolution compared with standard PET systems. This article discusses the potential applications of total-body PET/CT imaging in the assessment of musculoskeletal disorders.
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Affiliation(s)
- Abhijit J Chaudhari
- Department of Radiology, University of California Davis, 4860 Y Street, Sacramento, CA 95825, USA.
| | - William Y Raynor
- Department of Radiology, University of Pennsylvania, 3400 Spruce Street, Philadelphia, PA 19104, USA; Drexel University College of Medicine, 2900 West Queen Lane, Philadelphia, PA 19129, USA
| | - Ali Gholamrezanezhad
- Keck School of Medicine, University of Southern California, 1520 San Pablo Street, Los Angeles, CA 90033, USA
| | - Thomas J Werner
- Department of Radiology, University of Pennsylvania, 3400 Spruce Street, Philadelphia, PA 19104, USA
| | - Chamith S Rajapakse
- Department of Radiology, University of Pennsylvania, 3400 Spruce Street, Philadelphia, PA 19104, USA
| | - Abass Alavi
- Department of Radiology, University of Pennsylvania, 3400 Spruce Street, Philadelphia, PA 19104, USA
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van der Geest KSM, Treglia G, Glaudemans AWJM, Brouwer E, Jamar F, Slart RHJA, Gheysens O. Diagnostic value of [18F]FDG-PET/CT in polymyalgia rheumatica: a systematic review and meta-analysis. Eur J Nucl Med Mol Imaging 2020; 48:1876-1889. [PMID: 33372248 PMCID: PMC8113217 DOI: 10.1007/s00259-020-05162-6] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 12/08/2020] [Indexed: 02/01/2023]
Abstract
Purpose Polymyalgia rheumatica (PMR) can be difficult to diagnose. Whole-body [18F]FDG-PET/CT allows for a comprehensive evaluation of all relevant articular and extra-articular structures affected by PMR. We aimed to summarize current evidence on the diagnostic value of [18F]FDG-PET/CT for a diagnosis of PMR. Methods PubMed/MEDLINE and the Cochrane Library database were searched from inception through May 31, 2020. Studies containing patients with PMR who underwent [18F]FDG-PET/CT were included. Screening and full-text review were performed by 3 investigators and data extraction by 2 investigators. Risk of bias was examined with the QUADAS-2 tool. Diagnostic test meta-analysis was performed with a bivariate model. Results Twenty studies were included in the systematic review, of which 9 studies (n = 636 patients) were eligible for meta-analysis. [18F]FDG positivity at the following sites was associated with a diagnosis of PMR: interspinous bursae (positive likelihood ratio (LR+) 4.00; 95% CI 1.84–8.71), hips (LR+ 2.91; 95% CI 2.09–4.05), ischial tuberosities (LR+ 2.86; 95% CI 1.91–4.28), shoulders (LR+ 2.57; 95% CI 1.24–5.32) and sternoclavicular joints (LR+ 2.31; 95% CI 1.33–4.02). Negative likelihood ratios (LR−) for these sites, as well as the greater trochanters, were all less than 0.50. Composite [18F]FDG-PET/CT scores, as reported in 3 studies, provided a pooled LR+ of 3.91 (95% CI 2.42–6.32) and LR− of 0.19 (95% CI 0.10–0.36). Moderate to high heterogeneity was observed across the studies, mainly due to differences in patient selection, scanning procedures and/or interpretation criteria. Conclusion Significant [18F]FDG uptake at a combination of anatomic sites is informative for a diagnosis of PMR. [18F]FDG-PET/CT might be an important diagnostic tool in patients with suspected PMR. This study also highlights the need for adherence to published procedural recommendations and standardized interpretation criteria for the use of [18F]FDG-PET/CT in PMR. Supplementary Information The online version contains supplementary material available at 10.1007/s00259-020-05162-6.
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Affiliation(s)
- K S M van der Geest
- Department of Rheumatology and Clinical Immunology, University of Groningen, University Medical Center Groningen, Hanzeplein 1, 9700RB, Groningen, the Netherlands.
| | - G Treglia
- Clinic of Nuclear Medicine and PET/CT Center, Imaging Institute of Southern Switzerland, Ente Ospedaliero Cantonale, Bellinzona, Switzerland.,Clinic of Nuclear Medicine and PET/CT Center, Imaging Institute of Southern Switzerland, Ente Ospedaliero Cantonale, Lugano, Switzerland.,Department of Nuclear Medicine and Molecular Imaging, Lausanne University Hospital, University of Lausanne, Lausanne, Switzerland.,Health Technology Assessment Unit, Academic Education, Research and Innovation Area, Ente Ospedaliero Cantonale, Bellinzona, Switzerland
| | - A W J M Glaudemans
- Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - E Brouwer
- Department of Rheumatology and Clinical Immunology, University of Groningen, University Medical Center Groningen, Hanzeplein 1, 9700RB, Groningen, the Netherlands
| | - F Jamar
- Department of Nuclear Medicine, Cliniques Universitaires Saint-Luc and Institute of Clinical and Experimental Research (IREC), Université Catholique de Louvain (UCLouvain), Brussels, Belgium
| | - R H J A Slart
- Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.,Department of Biomedical Photonic Imaging, Faculty of Science and Technology, University of Twente, Enschede, The Netherlands
| | - O Gheysens
- Department of Nuclear Medicine, Cliniques Universitaires Saint-Luc and Institute of Clinical and Experimental Research (IREC), Université Catholique de Louvain (UCLouvain), Brussels, Belgium
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Wang T, Jiao Y, Zhang X. Immunometabolic Pathways and Its Therapeutic Implication in Autoimmune Diseases. Clin Rev Allergy Immunol 2020; 60:55-67. [PMID: 33179144 DOI: 10.1007/s12016-020-08821-6] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/02/2020] [Indexed: 02/08/2023]
Abstract
Autoimmune diseases (AIDs) are characterized with aberrant immune responses and their respective signaling pathways controlling cell differentiation, death, and survival. Cell metabolism is also an indispensable biochemical process that provides the very fundamental energy and materials. Accumulating evidences implicate that metabolism pathways have critical roles in determining the function of different immune subsets. Mechanisms of how immunometabolism participate in the pathogenesis of AIDs were also under intensive exploration. Here, in this review, we summarize the metabolic features of immune cells in AIDs and also the individual function of immunometabolism pathways, including glucose metabolism and tricarboxylic acid (TCA) cycle, in the setting of AIDs, mainly focusing on the potential targets for intervention. We also review studies that explore the intervention strategies targeting key molecules of metabolic pathways, such as mammalian target of rapamycin (mTOR), AMP-activated protein kinase (AMPK), and hypoxia-inducible factor 1a (HIF1a), in systemic lupus erythematosus (SLE) and rheumatoid arthritis (RA). The highlight of this review is to provide a comprehensive summary of the status quo of immunometabolism studies in AIDs and the potential translatable drug targets.
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Affiliation(s)
- Tingting Wang
- Department of Medical Research Center, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, 100730, China.,Clinical Immunology Centre, Medical Epigenetics Research Centre, State Key Laboratory of Difficult and Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing , 100730, China.,State Key Laboratory of Difficult, Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing , 100730, China
| | - Yuhao Jiao
- Clinical Immunology Centre, Medical Epigenetics Research Centre, State Key Laboratory of Difficult and Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing , 100730, China.,Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College; The Ministry of Education Key Laboratory, Beijing , 100730, China
| | - Xuan Zhang
- Clinical Immunology Centre, Medical Epigenetics Research Centre, State Key Laboratory of Difficult and Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing , 100730, China. .,Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College; The Ministry of Education Key Laboratory, Beijing , 100730, China. .,State Key Laboratory of Difficult, Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing , 100730, China.
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Bernotiene E, Bagdonas E, Kirdaite G, Bernotas P, Kalvaityte U, Uzieliene I, Thudium CS, Hannula H, Lorite GS, Dvir-Ginzberg M, Guermazi A, Mobasheri A. Emerging Technologies and Platforms for the Immunodetection of Multiple Biochemical Markers in Osteoarthritis Research and Therapy. Front Med (Lausanne) 2020; 7:572977. [PMID: 33195320 PMCID: PMC7609858 DOI: 10.3389/fmed.2020.572977] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 08/31/2020] [Indexed: 12/12/2022] Open
Abstract
Biomarkers, especially biochemical markers, are important in osteoarthritis (OA) research, clinical trials, and drug development and have potential for more extensive use in therapeutic monitoring. However, they have not yet had any significant impact on disease diagnosis and follow-up in a clinical context. Nevertheless, the development of immunoassays for the detection and measurement of biochemical markers in OA research and therapy is an active area of research and development. The evaluation of biochemical markers representing low-grade inflammation or extracellular matrix turnover may permit OA prognosis and expedite the development of personalized treatment tailored to fit particular disease severities. However, currently detection methods have failed to overcome specific hurdles such as low biochemical marker concentrations, patient-specific variation, and limited utility of single biochemical markers for definitive characterization of disease status. These challenges require new and innovative approaches for development of detection and quantification systems that incorporate clinically relevant biochemical marker panels. Emerging platforms and technologies that are already on the way to implementation in routine diagnostics and monitoring of other diseases could potentially serve as good technological and strategic examples for better assessment of OA. State-of-the-art technologies such as advanced multiplex assays, enhanced immunoassays, and biosensors ensure simultaneous screening of a range of biochemical marker targets, the expansion of detection limits, low costs, and rapid analysis. This paper explores the implementation of such technologies in OA research and therapy. Application of novel immunoassay-based technologies may shed light on poorly understood mechanisms in disease pathogenesis and lead to the development of clinically relevant biochemical marker panels. More sensitive and specific biochemical marker immunodetection will complement imaging biomarkers and ensure evidence-based comparisons of intervention efficacy. We discuss the challenges hindering the development, testing, and implementation of new OA biochemical marker assays utilizing emerging multiplexing technologies and biosensors.
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Affiliation(s)
- Eiva Bernotiene
- Department of Regenerative Medicine, State Research Institute Centre for Innovative Medicine, Vilnius, Lithuania
| | - Edvardas Bagdonas
- Department of Regenerative Medicine, State Research Institute Centre for Innovative Medicine, Vilnius, Lithuania
| | - Gailute Kirdaite
- Department of Experimental, Preventive and Clinical Medicine, State Research Institute Centre for Innovative Medicine, Vilnius, Lithuania
| | - Paulius Bernotas
- Department of Regenerative Medicine, State Research Institute Centre for Innovative Medicine, Vilnius, Lithuania
| | - Ursule Kalvaityte
- Department of Regenerative Medicine, State Research Institute Centre for Innovative Medicine, Vilnius, Lithuania
| | - Ilona Uzieliene
- Department of Regenerative Medicine, State Research Institute Centre for Innovative Medicine, Vilnius, Lithuania
| | | | - Heidi Hannula
- Microelectronics Research Unit, Faculty of Information Technology and Electrical Engineering, University of Oulu, Oulu, Finland
| | - Gabriela S. Lorite
- Microelectronics Research Unit, Faculty of Information Technology and Electrical Engineering, University of Oulu, Oulu, Finland
| | - Mona Dvir-Ginzberg
- Laboratory of Cartilage Biology, Institute of Dental Sciences, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Ali Guermazi
- Department of Radiology, Veterans Affairs Boston Healthcare System, Boston University School of Medicine, Boston, MA, United States
| | - Ali Mobasheri
- Department of Regenerative Medicine, State Research Institute Centre for Innovative Medicine, Vilnius, Lithuania
- Research Unit of Medical Imaging, Physics and Technology, Faculty of Medicine, University of Oulu, Oulu, Finland
- Departments of Orthopedics, Rheumatology and Clinical Immunology, University Medical Center Utrecht, Utrecht, Netherlands
- Centre for Sport, Exercise and Osteoarthritis Versus Arthritis, Queen's Medical Centre, Nottingham, United Kingdom
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Masoumi M, Mehrabzadeh M, Mahmoudzehi S, Mousavi MJ, Jamalzehi S, Sahebkar A, Karami J. Role of glucose metabolism in aggressive phenotype of fibroblast-like synoviocytes: Latest evidence and therapeutic approaches in rheumatoid arthritis. Int Immunopharmacol 2020; 89:107064. [PMID: 33039953 DOI: 10.1016/j.intimp.2020.107064] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 09/10/2020] [Accepted: 09/30/2020] [Indexed: 12/12/2022]
Abstract
Glucose metabolism is considerably increased in inflamed joints of rheumatoid arthritis (RA) patients at early stages. Fibroblast-like synoviocytes (FLSs) activation and subsequent joint damage are linked with metabolic alterations, especially glucose metabolism. It has been shown that glucose metabolism is elevated in aggressive phenotype of FLS cells. In this regard, glycolytic blockers are able to reduce aggressiveness of the FLS cells resulting in decreased joint damage in various arthritis models. Besides, metabolic changes in immune and non-immune cells such as FLS can provide important targets for therapeutic intervention. Glycolytic enzymes such as hexokinase 2 (HK2), phosphofructo-2-kinase/fructose-2,6-bisphosphatase (PFKFB), and phosphoglycerate kinase (PGK) play essential roles in aggressive behavior of FLS cells. It has been documented that the HK2 enzyme is significantly upregulated in RA FLS cells, compared with osteoarthritis (OA) FLS cells. The HK2 is expressed in a few tissues and upregulated in the inflamed synovium of RA patients that makes it a potential target for RA treatment. Furthermore, HK2 has different roles in each cellular compartment, which offers another level of specificity and provides a specific target to reduce deleterious effects of inhibiting the enzyme in RA without affecting glycolysis in normal cells. Thus, targeting the HK2 enzyme might be an attractive potential selective target for arthritis therapy and safer than global glycolysis inhibition. Therefore, this review was aimed to summarize the current knowledge about glucose metabolism of FLS cells and suggest novel biomarkers, which are potential candidates for RA treatment.
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Affiliation(s)
- Maryam Masoumi
- Clinical Research Development Center, Shahid Beheshti Hospital, Qom University of Medical Sciences, Qom, Iran
| | - Mohsen Mehrabzadeh
- Department of Medical Biochemistry, Tehran University of Medical Sciences, Tehran, Iran
| | - Salman Mahmoudzehi
- Department of Medical Laboratory Sciences, Iranshahr University of Medical Sciences, Iranshahr, Iran
| | - Mohammad Javad Mousavi
- Department of Hematology, Faculty of Allied Medicine, Bushehr University of Medical Sciences, Bushehr, Iran; Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Sirous Jamalzehi
- Department of Medical Laboratory Sciences, Iranshahr University of Medical Sciences, Iranshahr, Iran
| | - Amirhossein Sahebkar
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Neurogenic Inflammation Research Center, Mashhad University of Medical Sciences, Mashhad, Iran; Polish Mother's Memorial Hospital Research Institute (PMMHRI), Lodz, Poland; Halal Research Center of IRI, FDA, Tehran, Iran.
| | - Jafar Karami
- Department of Laboratory Sciences, Khomein University of Medical Sciences, Khomein, Iran; Department of Immunology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
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PET Imaging of l-Type Amino Acid Transporter (LAT1) and Cystine-Glutamate Antiporter (xc−) with [18F]FDOPA and [18F]FSPG in Breast Cancer Models. Mol Imaging Biol 2020; 22:1562-1571. [DOI: 10.1007/s11307-020-01529-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 08/05/2020] [Accepted: 08/06/2020] [Indexed: 02/07/2023]
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Abstract
Purpose of Review The main goal of the article is to familiarize the reader with commonly and uncommonly used nuclear medicine procedures that can significantly contribute to improved patient care. The article presents examples of specific modality utilization in the chest including assessment of lung ventilation and perfusion, imaging options for broad range of infectious and inflammatory processes, and selected aspects of oncologic imaging. In addition, rapidly developing new techniques utilizing molecular imaging are discussed. Recent Findings The article describes nuclear medicine imaging modalities including gamma camera, SPECT, PET, and hybrid imaging (SPECT/CT, PET/CT, and PET/MR) in the context of established and emerging clinical applications. Areas of potential future development in nuclear medicine are discussed with emphasis on molecular imaging and implementation of new targeted tracers used in diagnostics and therapeutics (theranostics). Summary Nuclear medicine and molecular imaging provide many unique and novel options for the diagnosis and treatment of pulmonary diseases. This article reviews current applications for nuclear medicine and molecular imaging and selected future applications for radiopharmaceuticals and targeted molecular imaging techniques.
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Zhou X, Li Y, Wang Q. FDG PET/CT used in identifying adult-onset Still's disease in connective tissue diseases. Clin Rheumatol 2020; 39:2735-2742. [PMID: 32180040 DOI: 10.1007/s10067-020-05041-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 02/24/2020] [Accepted: 03/10/2020] [Indexed: 11/28/2022]
Abstract
PURPOSE To explore the 18F-fluoro-dexoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) imaging characteristics of adult-onset Still's disease (AOSD) and its significance in differential diagnosis from other connective tissue diseases (CTDs). METHODS FDG PET/CT images of 54 patients with AOSD and 66 with other CTD from patients suffering from fever of unknown origin (FUO) were retrospectively studied and compared with 40 healthy controls. Clinical and PET/CT characteristics of AOSD and other CTDs were compared, and SUVmax (maximum standardized uptake value) was used to analyze the differences of FDG uptake in the blood pool, liver, spleen, bone marrow, and hyperplastic lymph nodes between the AOSD and other CTDs. The SUVmax ratios of the spleen, bone marrow, and lymph nodes to the liver were used to establish the diagnostic criteria for differential diagnosis of AOSD, and its diagnostic efficiency was evaluated. RESULTS Positive findings are presented in 53/54 (98.1%) AOSD patients and 61/66 (92.4%) other CTD patients in PET/CT imaging. AOSD manifested as diffusely increased FDG uptake in the spleen and bone marrow, and multiple reactive hyperplasia lymph nodes are symmetrically distributed mainly in the neck and axilla, while other organs were seldom involved. Although these abnormalities could be seen in other CTDs, its incidence and uptake value were both higher in AOSD. If two or more of the following three standard were met, the sensitivity, specificity, and accuracy of diagnosing AOSD could reach 90.7%, 92.4%, and 91.7%, respectively: ① spleen SUVmax/liver SUVmax ≥ 1.2 and/or bone marrow SUVmax/liver SUVmax ≥ 1.4; ②symmetrically distributed reactive hyperplastic lymph nodes mainly in the neck and axilla with a lymph node SUVmax/liver SUVmax ≥ 1.8; and ③ no other abnormal uptake found in other organs. CONCLUSION Characteristic manifestations in AOSD were found on FDG PET/CT. These findings could help to identify AOSD from the other CTDs, especially in cases of fever of unknown origin, where it can assist in identifying the cause. Key Points • Image characteristics of FDG PET/CT in adult-onset Still's disease were described. • FDG PET/CT helps in identifying adult-onset Still's disease from the other connective tissue diseases. • FDG PET/CT imaging standard for diagnosing adult-onset Still's disease were established.
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Affiliation(s)
- Xin Zhou
- Department of Nuclear Medicine, Peking University People's Hospital, No.11 Xizhimen South Avenue, Xicheng District, Beijing, 100044, China
| | - Yuan Li
- Department of Nuclear Medicine, Peking University People's Hospital, No.11 Xizhimen South Avenue, Xicheng District, Beijing, 100044, China
| | - Qian Wang
- Department of Nuclear Medicine, Peking University People's Hospital, No.11 Xizhimen South Avenue, Xicheng District, Beijing, 100044, China.
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41
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Expert Consensus on clinical application of FDG PET/CT in infection and inflammation. Ann Nucl Med 2020; 34:369-376. [DOI: 10.1007/s12149-020-01449-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Accepted: 02/09/2020] [Indexed: 12/12/2022]
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Zezina E, Sercan‐Alp O, Herrmann M, Biesemann N. Glucose transporter 1 in rheumatoid arthritis and autoimmunity. WILEY INTERDISCIPLINARY REVIEWS-SYSTEMS BIOLOGY AND MEDICINE 2020; 12:e1483. [DOI: 10.1002/wsbm.1483] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 01/28/2020] [Accepted: 01/29/2020] [Indexed: 12/21/2022]
Affiliation(s)
- Ekaterina Zezina
- Sanofi R&D Immunology and Inflammation Therapeutic Area Type 1/17 Inflammation and Arthritis Cluster, Industriepark Hoechst Frankfurt am Main Germany
| | - Oezen Sercan‐Alp
- Sanofi R&D Immunology and Inflammation Therapeutic Area Type 1/17 Inflammation and Arthritis Cluster, Industriepark Hoechst Frankfurt am Main Germany
| | - Matthias Herrmann
- Sanofi R&D Immunology and Inflammation Therapeutic Area Type 1/17 Inflammation and Arthritis Cluster, Industriepark Hoechst Frankfurt am Main Germany
| | - Nadine Biesemann
- Sanofi R&D Immunology and Inflammation Therapeutic Area Type 1/17 Inflammation and Arthritis Cluster, Industriepark Hoechst Frankfurt am Main Germany
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Korekawa A, Nakajima K, Nakano H, Sawamura D. Pedunculated aneurysmal fibrous histiocytoma with increased 18 F-fluorodeoxyglucose uptake on positron emission tomography/computed tomography. J Dermatol 2020; 47:e100-e102. [PMID: 31953877 DOI: 10.1111/1346-8138.15237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ayumi Korekawa
- Department of Dermatology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Koji Nakajima
- Department of Dermatology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Hajime Nakano
- Department of Dermatology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Daisuke Sawamura
- Department of Dermatology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
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Guo M, Qi L, Zhang Y, Shang D, Yu J, Yue J. 18F-Fluorodeoxyglucose positron emission tomography may not visualize radiation pneumonitis. EJNMMI Res 2019; 9:112. [PMID: 31858307 PMCID: PMC6923299 DOI: 10.1186/s13550-019-0571-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Accepted: 11/04/2019] [Indexed: 12/29/2022] Open
Abstract
Background Radiation pneumonitis is a common and potentially fatal complication of radiotherapy (RT). Some patients with radiation pneumonitis show increases in uptake of fluorodeoxyglucose (FDG) on positron emission tomography (PET), but others do not. The exact relationship between radiation pneumonitis and 18F-FDG PET findings remains controversial. Methods We used an animal model of radiation pneumonitis involving both radiation and simulated bacterial infection in Wistar rats. Treatment groups (10 rats/group) were as follows: control, RT-only, lipopolysaccharide (LPS)-only, and RT+LPS. All rats had micro-PET scans at 7 weeks after RT (or sham). Histologic, immunohistochemical, and biochemical analyses were performed to evaluate potential mechanisms. Results Irradiated rats had developed radiation pneumonitis at 7 weeks after RT based on pathology and CT scans. Maximum and mean standardized uptake values (SUVmax and SUVmean) at that time were significantly increased in the LPS group (P < 0.001 for both) and the RT+LPS group (P < 0.001 for both) relative to control, but were not different in the RT-only group (P = 0.156 SUVmax and P = 0.304 SUVmean). The combination of RT and LPS increased the expression of the aerobic glycolysis enzyme PKM2 (P < 0.001) and the glucose transporter GLUT1 (P = 0.004) in lung tissues. LPS alone increased the expression of PKM2 (P = 0.018), but RT alone did not affect PKM2 (P = 0.270) or GLUT1 (P = 0.989). Conclusions Aseptic radiation pneumonitis could not be accurately assessed by 18F-FDG PET, but was visualized after simulated bacterial infection via LPS. The underlying mechanism of the model of bacterial infection causing increased FDG uptake may be the Warburg effect.
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Affiliation(s)
- Meiying Guo
- School of Medicine, Shandong University, Jinan, 250012, China.,Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, No. 440, Ji Yan Road, Jinan, 250117, China
| | - Liang Qi
- Equipment and material Department, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, 250117, China
| | - Yun Zhang
- Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, No. 440, Ji Yan Road, Jinan, 250117, China
| | - Dongping Shang
- Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, No. 440, Ji Yan Road, Jinan, 250117, China
| | - Jinming Yu
- Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, No. 440, Ji Yan Road, Jinan, 250117, China
| | - Jinbo Yue
- Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, No. 440, Ji Yan Road, Jinan, 250117, China.
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Krys D, Hamann I, Wuest M, Wuest F. Effect of hypoxia on human equilibrative nucleoside transporters hENT1 and hENT2 in breast cancer. FASEB J 2019; 33:13837-13851. [PMID: 31601121 DOI: 10.1096/fj.201900870rr] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Elevated proliferation rates in cancer can be visualized with positron emission tomography (PET) using 3'-deoxy-3'-l-[18F]fluorothymidine ([18F]FLT). This study investigates whether [18F]FLT transport proteins are regulated through hypoxia. Expression and function of human equilibrative nucleoside transporter (hENT)-1, hENT2, and thymidine kinase 1 (TK1) were studied under normoxic and hypoxic conditions, and assessed with [18F]FLT-PET in estrogen receptor positive (ER+)-MCF7, triple-negative MDA-MB231 breast cancer (BC) cells, and MCF10A cells (human mammary epithelial cells). Functional involvement of hENT2 [18F]FLT transport was demonstrated in all cell lines. In vitro [18F]FLT uptake was higher in MDA-MB231 than in MCF7: 242 ± 9 vs. 147 ± 18% radioactivity/mg protein after 60 min under normoxia. Hypoxia showed no significant change in radiotracer uptake. Protein analysis revealed increased hENT1 (P < 0.0963) in MDA-MB231. Hypoxia did not change expression of either hENT1, hENT2, or TK1. In vitro inhibition experiments suggested involvement of hENT1, hENT2, and human concentrative nucleoside transporters during [18F]FLT uptake into all cell lines. In vivo PET imaging revealed comparable tumor uptake in MCF7 and MDA-MB231 tumors over 60 min, reaching standardized uptake values of 0.96 ± 0.05 vs. 0.89 ± 0.08 (n = 3). Higher hENT1 expression in MDA-MB231 seems to drive nucleoside transport, whereas TK1 expression in MCF7 seems responsible for comparable [18F]FLT retention in ER+ tumors. Our study demonstrates that hypoxia does not significantly affect nucleoside transport as tested with [18F]FLT in BC.-Krys, D., Hamann, I., Wuest, M., Wuest, F. Effect of hypoxia on human equilibrative nucleoside transporters hENT1 and hENT2 in breast cancer.
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Affiliation(s)
- Daniel Krys
- Department of Oncology, University of Alberta, Edmonton, Alberta, Canada
| | - Ingrit Hamann
- Department of Oncology, University of Alberta, Edmonton, Alberta, Canada
| | - Melinda Wuest
- Department of Oncology, University of Alberta, Edmonton, Alberta, Canada.,Cancer Research Institute of Northern Alberta, University of Alberta, Edmonton, Alberta, Canada
| | - Frank Wuest
- Department of Oncology, University of Alberta, Edmonton, Alberta, Canada.,Cancer Research Institute of Northern Alberta, University of Alberta, Edmonton, Alberta, Canada
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Cheema R, Chang-Miller A, Aslam F. Myalgia with Elevated Inflammatory Markers in an Obese Young Female: Fibromyalgia or Polymyalgia Rheumatica? AMERICAN JOURNAL OF CASE REPORTS 2019; 20:659-663. [PMID: 31064976 PMCID: PMC6524750 DOI: 10.12659/ajcr.915564] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Patient: Female, 38 Final Diagnosis: Fibromyalgia Symptoms: Myalgia • pain Medication: — Clinical Procedure: — Specialty: Rheumatology
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Affiliation(s)
- Rabia Cheema
- Department of Medicine, St. Mary's Hospital, Waterbury, CT, USA.,Department of Medicine, Frank H. Netter MD School of Medicine, North Haven, CT, USA
| | | | - Fawad Aslam
- Division of Rheumatology, Mayo Clinic, Scottsdale, AZ, USA
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Advanced PET imaging in oncology: status and developments with current and future relevance to lung cancer care. Curr Opin Oncol 2019; 30:77-83. [PMID: 29251666 DOI: 10.1097/cco.0000000000000430] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
PURPOSE OF REVIEW This review highlights the status and developments of PET imaging in oncology, with particular emphasis on lung cancer. We discuss the significance of PET for diagnosis, staging, decision-making, monitoring of treatment response, and drug development. The PET key advantage, the noninvasive assessment of functional and molecular tumor characteristics including tumor heterogeneity, as well as PET trends relevant to cancer care are exemplified. RECENT FINDINGS Advances of PET and radiotracer technology are encouraging for multiple fields of oncological research and clinical application, including in-depth assessment of PET images by texture analysis (radiomics). Whole body PET imaging and novel PET tracers allow assessing characteristics of most types of cancer. However, only few PET tracers in addition to F-fluorodeoxyglucose have sufficiently been validated, approved, and are reimbursed for a limited number of indications. Therefore, validation and standardization of PET parameters including tracer dosage, image acquisition, post processing, and reading are required to expand PET imaging as clinically applicable approach. SUMMARY Considering the potential of PET imaging for precision medicine and drug development in lung and other types of cancer, increasing efforts are warranted to standardize PET technology and to provide evidence for PET imaging as a guiding biomarker in nearly all areas of cancer treatment.
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Comparative Evaluation of 68Ga-Citrate PET/CT and 18F-FDG PET/CT in the Diagnosis of Type II Collagen-Induced Arthritis in Rats. CONTRAST MEDIA & MOLECULAR IMAGING 2019; 2019:2353658. [PMID: 31015824 PMCID: PMC6444231 DOI: 10.1155/2019/2353658] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Accepted: 02/27/2019] [Indexed: 01/05/2023]
Abstract
Rheumatoid arthritis (RA) is a chronic autoimmune disease characterized by systemic, symmetrical, and erosive synovitis. RA is one of the most common disabling diseases in the clinic. The main clinical intervention strategies are early diagnosis and early treatment. This study aims to predict the diagnostic value of 68Ga-citrate and 18F-FDG PET/CT in RA by comparing and analyzing the value of 68Ga-citrate and 18F-FDG PET/CT for diagnosing type II collagen-induced arthritis (CIA) in rats. Some CIA models were established. Normal rats were selected as the control group, and 23 days and 40 days were selected as the early and late time points of arthritis, respectively. The semiquantitative analysis of CIA rats was carried out with 68Ga-citrate PET/CT and 18F-FDG PET/CT, and the ratio of the maximum standardized uptake (SUVmax) values in the regions of interest (ROIs) of the hind foot ankle joint and thigh muscle was calculated and statistically analyzed. The distribution of CIA rats in vivo at the 68Ga-citrate 90 min time point was studied, and the ankle tissues were evaluated with hematoxylin and eosin (HE) staining. 68Ga-citrate PET/CT is obviously superior to 18F-FDG PET/CT for CIA imaging, and the statistical results show that the difference between the two examination methods is statistically significant (P < 0.001). The uptake of these two radiopharmaceuticals showed the same trend in arthritis rats with different scores. The distribution of 68Ga-citrate at 90 min is consistent with the trend shown by 68Ga-citrate PET/CT. 68Ga-citrate PET/CT can reflect the inflammatory activity of affected joints in CIA rats earlier and more sensitively than 18F-FDG PET/CT, and this imaging advantage continues until the later stage of inflammation. Therefore, 68Ga-citrate PET/CT is worthy of further promotion and application in the clinical diagnosis of RA.
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Abstract
PURPOSE OF REVIEW This review aims to discuss the use of fluorodeoxyglucose (FDG) positron emission tomography (PET/CT) for diagnosis and management of patients with large-vessel vasculitis (LVV). RECENT FINDINGS Incidence of LVV is likely underestimated, in part due to its non-specific symptoms. Nevertheless, early diagnosis of LVV is essential to initiate timely therapy in order to prevent vascular complications, such as stenoses and aneurysms. FDG PET/CT imaging has the ability to detect LVV during the acute phase, prior to edema and other vascular structural changes, with its high sensitivity for inflammatory activity. FDG PET/CT was shown to be a powerful prognostic marker by allowing identification of patients at risk of vascular complications. Additionally, preliminary data support the use of FDG PET/CT to follow therapy efficacy. FDG PET/CT allows early detection of inflammation, before morphological and irreversible vascular changes can be observed, allowing prompt diagnosis and treatment of LVV.
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Affiliation(s)
- Matthieu Pelletier-Galarneau
- Department of Medical Imaging, Institut de Cardiologie de Montréal, Université de Montréal, Montréal, Québec, Canada.,Gordon Center for Medical Imaging, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Terrence D Ruddy
- Division of Cardiology, Department of Medicine, University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa, ON, K1Y 4W7, Canada.
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