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Zhu G, Bai P, Wang K, Mi J, Yang J, Hu J, Ban Y, Xu R, Chen R, Wang C, Tang L, Sang Z. Design, synthesis, and evaluation of novel O-alkyl ferulamide derivatives as multifunctional ligands for treating Alzheimer's disease. J Enzyme Inhib Med Chem 2022; 37:1375-1388. [PMID: 35549612 PMCID: PMC9116242 DOI: 10.1080/14756366.2022.2073442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 04/05/2022] [Accepted: 04/28/2022] [Indexed: 11/08/2022] Open
Abstract
Herein, a series of novel O-alkyl ferulamide derivatives were designed and synthesised through the multi-target-directed ligands (MTDLs) strategy. The biological activities in vitro showed that compounds 5a, 5d, 5e, 5f, and 5h indicated significantly selective MAO-B inhibitory potency (IC50 = 0.32, 0.56, 0.54, 0.73, and 0.86 μM, respectively) and moderate antioxidant activity. Moreover, compounds 5a, 5d, 5e, 5f, and 5h showed potent anti-inflammatory properties, remarkable effects on self-induced Aβ1-42 aggregation, and potent neuroprotective effect on Aβ1-42-induced PC12 cell injury. Furthermore, compounds 5a, 5d, 5e, 5f, and 5h presented good blood-brain barrier permeation in vitro and drug-like properties. More interesting, the PET/CT images with [11C]5f demonstrated that [11C]5f could penetrate the BBB with a high brain uptake and exhibited good brain clearance kinetic property. Therefore, compound 5f would be a promising multi-functional agent for the treatment of AD.
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Affiliation(s)
- Gaofeng Zhu
- State Key Laboratory of Functions and Applications of Medicinal Plants, School of Basic Medical Sciences, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, Guiyang, China
| | - Ping Bai
- Department of Radiology, Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA, USA
| | - Keren Wang
- College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang, China
| | - Jing Mi
- College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang, China
| | - Jing Yang
- College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang, China
| | - Jiaqi Hu
- State Key Laboratory of Functions and Applications of Medicinal Plants, School of Basic Medical Sciences, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, Guiyang, China
| | - Yujuan Ban
- State Key Laboratory of Functions and Applications of Medicinal Plants, School of Basic Medical Sciences, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, Guiyang, China
| | - Ran Xu
- State Key Laboratory of Functions and Applications of Medicinal Plants, School of Basic Medical Sciences, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, Guiyang, China
| | - Rui Chen
- State Key Laboratory of Functions and Applications of Medicinal Plants, School of Basic Medical Sciences, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, Guiyang, China
| | - Changning Wang
- Department of Radiology, Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA, USA
| | - Lei Tang
- State Key Laboratory of Functions and Applications of Medicinal Plants, School of Basic Medical Sciences, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, Guiyang, China
| | - Zhipei Sang
- State Key Laboratory of Functions and Applications of Medicinal Plants, School of Basic Medical Sciences, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, Guiyang, China
- College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang, China
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Sang Z, Bai P, Ban Y, Wang K, Wu A, Mi J, Hu J, Xu R, Zhu G, Wang J, Zhang J, Wang C, Tan Z, Tang L. Novel donepezil-chalcone-rivastigmine hybrids as potential multifunctional anti-Alzheimer's agents: Design, synthesis, in vitro biological evaluation, in vivo and in silico studies. Bioorg Chem 2022; 127:106007. [PMID: 35849893 DOI: 10.1016/j.bioorg.2022.106007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 06/12/2022] [Accepted: 07/04/2022] [Indexed: 02/01/2023]
Abstract
Alzheimer's disease (AD) is a chronic, progressive brain neurodegenerative disorder. Up to now, there is no effective drug to halt or reverse the progress of AD. Given the complex pathogenesis of AD, the multi-target-directed ligands (MTDLs) strategy is considered as the promising therapy. Herein, a series of novel donepezil-chalone-rivastigmine hybrids was rationally designed and synthesized by fusing donepezil, chalone and rivastigmine. The in vitro bioactivity results displayed that compound 10c was a reversible huAChE (IC50 = 0.87 μM) and huBuChE (IC50 = 3.3 μM) inhibitor. It also presented significant anti-inflammation effects by suppressing the level of IL-6 and TNF-α production, and significantly inhibited self-mediated Aβ1-42 aggregation (60.6%) and huAChE-mediated induced Aβ1-40 aggregation (46.2%). In addition, 10c showed significant neuroprotective effect on Aβ1-42-induced PC12 cell injury and activated UPS pathway in HT22 cells to degrade tau and amyloid precursor protein (APP). Furthermore, compound 10c presented good stabilty in artificial gastrointestinal fluids and liver microsomes in vitro. The pharmacokinetic study showed that compound 10c was rapidly absorbed in rats and distributed in rat brain after intragastric administration. The PET-CT imaging demonstrated that [11C]10c could quickly enter the brain and washed out gradually in vivo. Further, compound 10c at a dose of 5 mg/kg improved scopolamine-induced memory impairment, deserving further investigations.
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Affiliation(s)
- Zhipei Sang
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, Guiyang 550004, China; College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang 473061, China; School of Pharmaceutical Sciences, Hainan University, Haikou, Hainan 570228, China.
| | - Ping Bai
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA
| | - Yujuan Ban
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, Guiyang 550004, China
| | - Keren Wang
- College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang 473061, China
| | - Anguo Wu
- Sichuan Key Medical Laboratory of New Drug Discovery and Drugability Evaluation, Southwest Medical University, Luzhou 646000, China
| | - Jing Mi
- College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang 473061, China
| | - Jiaqi Hu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, Guiyang 550004, China
| | - Rui Xu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, Guiyang 550004, China
| | - Gaofeng Zhu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, Guiyang 550004, China
| | - Jianta Wang
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, Guiyang 550004, China
| | - Jiquan Zhang
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, Guiyang 550004, China
| | - Changning Wang
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA.
| | - Zhenghuai Tan
- Institute of Traditional Chinese Medicine Pharmacology and Toxicology, Sichuan Academy of Chinese Medicine Sciences, Chengdu 610041, China.
| | - Lei Tang
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, Guiyang 550004, China.
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Lu X, Wu M, Wang S, Hai W, Li P. Development and preliminary evaluation of an integrin α 2β 1-targeted PET probe as a supplement and alternative of PSMA imaging for prostate cancer. Bioorg Med Chem 2021; 54:116583. [PMID: 34952297 DOI: 10.1016/j.bmc.2021.116583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 12/14/2021] [Accepted: 12/14/2021] [Indexed: 11/02/2022]
Abstract
An integrin α2β1-targeted PET probe (68Ga-IABtP) was developed to serve as a supplement and alternative of PSMA imaging for prostate cancer. 68Ga-IABtP was synthesized by labeling the precursor peptide with 68Ga with 93% labeling yield and 4.14 MBq/μg specific radioactivity. 68Ga-IABtP showed no specific uptake in LNCaP prostate cancer cell with low integrin α2β1 expression but significantly increased uptake in PC-3 prostate cancer cell with high integrin α2β1 expression, which could be specifically blocked by the integrin α2β1 monoclonal antibody. The efflux experiments demonstrated that 68Ga-IABtP could rapidly penetrate into PC-3 cell after cell binding, thereby prolonging the residence time in the tumor and allow enough time for probe clearance from the circulation and non-specific organs. The biodistribution study indicated that 68Ga-IABtP showed no specific accumulation in non-target organs and was quickly cleared from the kidney. The in vivo PET-CT imaging demonstrated that 68Ga-IABtP showed no specific uptake in LNCaP tumor but could specifically accumulate in the PC-3 tumor, and was rapidly cleared from spleen, intestine, kidney and liver, resulting in excellent contrast effect with low background signal and high target to non-target ratios.
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Affiliation(s)
- Xinmiao Lu
- Department of Nuclear Medicine, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200025, China
| | - Muyu Wu
- Department of Nuclear Medicine, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200025, China
| | - Siwen Wang
- Department of Nuclear Medicine, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200025, China
| | - Wangxi Hai
- Department of Nuclear Medicine, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200025, China.
| | - Peiyong Li
- Department of Nuclear Medicine, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200025, China.
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Kosmou A, Sachpekidis C, Pan L, Matsopoulos GK, Hassel JC, Dimitrakopoulou-Strauss A, Provata A. Fractal and Multifractal Analysis of PET-CT Images for Therapy Assessment of Metastatic Melanoma Patients under PD-1 Inhibitors: A Feasibility Study. Cancers (Basel) 2021; 13:5170. [PMID: 34680319 DOI: 10.3390/cancers13205170] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 09/30/2021] [Accepted: 10/08/2021] [Indexed: 11/16/2022] Open
Abstract
Longitudinal whole-body PET-CT scans with F-18-fluorodeoxyglucose (18F-FDG) in patients suffering from metastatic melanoma were analyzed and the tracer distribution in patients was compared with that of healthy controls. Nineteen patients with metastatic melanoma were scanned before, after two and after four cycles of treatment with PD-1 inhibitors (pembrolizumab, nivolumab) applied as monotherapy or as combination treatment with ipilimumab. For comparison eight healthy controls were analyzed. As quantitative measures for the comparison between controls and patients, the nonlinear fractal dimension (FD) and multifractal spectrum (MFS) were calculated from the digitized PET-CT scans. The FD and MFS measures, which capture the dispersion of the tracer in the body, decreased with disease progression, since the tracer particles tended to accumulate around metastatic sites in patients, while the measures increased when the patients' clinical condition ameliorate. The MFS measure gave better predictions and were consistent with the PET Response Evaluation Criteria for Immunotherapy (PERCIMT) in 81% of the cases, while FD agreed in 77% of all cases. These results agree, qualitatively, with a previous study of our group when treatment with ipilimumab monotherapy was considered.
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Kode J, Kovvuri J, Nagaraju B, Jadhav S, Barkume M, Sen S, Kasinathan NK, Chaudhari P, Mohanty BS, Gour J, Sigalapalli DK, Ganesh Kumar C, Pradhan T, Banerjee M, Kamal A. Synthesis, biological evaluation, and molecular docking analysis of phenstatin based indole linked chalcones as anticancer agents and tubulin polymerization inhibitors. Bioorg Chem 2020; 105:104447. [PMID: 33207276 DOI: 10.1016/j.bioorg.2020.104447] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 10/27/2020] [Accepted: 10/28/2020] [Indexed: 02/08/2023]
Abstract
A library of new phenstatin based indole linked chalcone compounds (9a-z and 9aa-ad) were designed and synthesized. Of these, compound 9a with 1-methyl, 2- and 3-methoxy substituents in the aromatic ring was efficacious against the human oral cancer cell line SCC-29B, spheroids, and in a mouse xenograft model of oral cancer AW13516. Compound 9a exhibited anti-cancer activity through disrupting cellular integrity and affecting glucose metabolism-which is a hallmark of cancer. The cellular architecture was affected by inhibition of tubulin polymerization as observed by an immunofluorescence assay on 9a-treated SCC-29B cells. An in vitro tubulin polymerization kinetics assay provided evidence of direct interaction of 9a with tubulin. This physical interaction between tubulin and compound 9a was further confirmed by Surface Plasmon Resonance (SPR) analysis. Molecular docking experiments and validations revealed that compound 9a interacts and binds at the colchicine binding site of tubulin and at active sites of key enzymes in the glucose metabolism pathway. Based on in silico modeling, biophysical interactions, and pre-clinical observations, 9a consisting of phenstatin based indole-chalcone scaffolds, can be considered as an attractive tubulin polymerization inhibitor candidate for developing anti-cancer therapeutics.
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Affiliation(s)
- Jyoti Kode
- Anti-Cancer Drug Screening Facility (ACDSF), Advanced Centre for Treatment, Research & Education in Cancer (ACTREC), Tata Memorial Centre, Kharghar, Navi Mumbai 410210, India; Tumor Immunology & Immunotherapy Group, Advanced Centre for Treatment, Research & Education in Cancer (ACTREC), Tata Memorial Centre, Kharghar, Navi Mumbai 410210, India; Homi Bhabha National Institute (HBNI), Training School Complex, Anushakti Nagar, Mumbai 400085, India.
| | - Jeshma Kovvuri
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, India; Academy of Scientific and Innovative Research (AcSIR), New Delhi 110025, India; Department of Humanities and Sciences, Vardhaman College of Engineering (Autonomous), Shamshabad, Hyderabad, Telangana 501218, India.
| | - Burri Nagaraju
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, India; Academy of Scientific and Innovative Research (AcSIR), New Delhi 110025, India.
| | - Shailesh Jadhav
- Anti-Cancer Drug Screening Facility (ACDSF), Advanced Centre for Treatment, Research & Education in Cancer (ACTREC), Tata Memorial Centre, Kharghar, Navi Mumbai 410210, India.
| | - Madan Barkume
- Anti-Cancer Drug Screening Facility (ACDSF), Advanced Centre for Treatment, Research & Education in Cancer (ACTREC), Tata Memorial Centre, Kharghar, Navi Mumbai 410210, India.
| | - Subrata Sen
- Anti-Cancer Drug Screening Facility (ACDSF), Advanced Centre for Treatment, Research & Education in Cancer (ACTREC), Tata Memorial Centre, Kharghar, Navi Mumbai 410210, India.
| | - Nirmal Kumar Kasinathan
- Anti-Cancer Drug Screening Facility (ACDSF), Advanced Centre for Treatment, Research & Education in Cancer (ACTREC), Tata Memorial Centre, Kharghar, Navi Mumbai 410210, India.
| | - Pradip Chaudhari
- Homi Bhabha National Institute (HBNI), Training School Complex, Anushakti Nagar, Mumbai 400085, India; Small Animal Imaging Facility, Advanced Centre for Treatment, Research & Education in Cancer (ACTREC), Tata Memorial Centre, Kharghar, Navi Mumbai 410210, India.
| | - Bhabani Shankar Mohanty
- Small Animal Imaging Facility, Advanced Centre for Treatment, Research & Education in Cancer (ACTREC), Tata Memorial Centre, Kharghar, Navi Mumbai 410210, India.
| | - Jitendra Gour
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India.
| | - Dilep Kumar Sigalapalli
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India.
| | - C Ganesh Kumar
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, India; Academy of Scientific and Innovative Research (AcSIR), New Delhi 110025, India.
| | - Trupti Pradhan
- Tumor Immunology & Immunotherapy Group, Advanced Centre for Treatment, Research & Education in Cancer (ACTREC), Tata Memorial Centre, Kharghar, Navi Mumbai 410210, India.
| | - Manisha Banerjee
- Homi Bhabha National Institute (HBNI), Training School Complex, Anushakti Nagar, Mumbai 400085, India; Molecular Biology Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India.
| | - Ahmed Kamal
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, India; Academy of Scientific and Innovative Research (AcSIR), New Delhi 110025, India; Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India; School of Pharmaceutical Education and Research (SPER), Jamia Hamdard, New Delhi 110062, India.
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Sharpe SA, Scott S, Taylor I, Skinner O, Clark SO, Smyth D, McIntyre A, Gleeson FV, Dennis MJ. Use of high frequency jet ventilation as a refinement for imaging macaques with respiratory disease. Lab Anim 2020; 54:386-390. [PMID: 32216534 DOI: 10.1177/0023677220913328] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Imaging is used in human medicine to diagnose disease and monitor treatment efficacy. Computed tomography (CT) positron emission tomography (PET) and magnetic resonance (MR) are applied to animal models of infectious diseases to increase data quality, enhance their relevance to the clinical situation, and to address ethical issues through reduction of numbers and refinement of study designs. The time required for collection of MR and PET-CT scans means that normal breathing produces motion artefacts that can render images unacceptable. We report, for the first time, the use of high frequency jet ventilation (HFJV) for respiratory management during imaging of macaques. HFJV enables continuous gaseous exchange, resulting in cessation of spontaneous breathing motion thus providing a motionless field without the potential stresses induced by repeated breath-hold strategies.
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Affiliation(s)
- Sally A Sharpe
- Public Health England, National Infection Service, Porton Down, Salisbury, SP4 0JG, UK
| | - Shaun Scott
- The Churchill Hospital, Headington, Oxford, UK
| | - Irene Taylor
- Public Health England, National Infection Service, Porton Down, Salisbury, SP4 0JG, UK
| | - Oliver Skinner
- Public Health England, National Infection Service, Porton Down, Salisbury, SP4 0JG, UK
| | - Simon O Clark
- Public Health England, National Infection Service, Porton Down, Salisbury, SP4 0JG, UK
| | - Donna Smyth
- Public Health England, National Infection Service, Porton Down, Salisbury, SP4 0JG, UK
| | | | | | - Mike J Dennis
- Public Health England, National Infection Service, Porton Down, Salisbury, SP4 0JG, UK
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Pirotte M, Forte F, Lutteri L, Willems E, Duran U, Belle L, Baron F, Beguin Y, Maquet P, Bodart O, Servais S. Neuronal surface antibody-mediated encephalopathy as manifestation of chronic graft-versus-host disease after allogeneic hematopoietic stem cell transplantation. J Neuroimmunol 2018; 323:115-118. [PMID: 30189384 DOI: 10.1016/j.jneuroim.2018.08.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Revised: 08/06/2018] [Accepted: 08/06/2018] [Indexed: 12/21/2022]
Abstract
Although it remained controversial for a long time, central nervous system (CNS) involvement of graft-versus-host disease (GVHD) is now becoming recognized as a real nosological entity. Previous case reports have suggested heterogeneous clinical presentations and it is not excluded that the whole spectrum of manifestations has not yet been fully described. Here, we report the case of a 58-year-old man with chronic GVHD who developed a rapidly ingravescent encephalopathy. There was no evidence for CNS immune-mediated lesions on conventional imaging nor for cellular infiltration in the cerebrospinal fluid. Serum analyses revealed the presence of anti-neuronal antibodies directed against anti-contactin-associated protein 2 (anti-Caspr2), a protein associated with voltage-gated potassium neuronal channels. Functional imaging with 2-deoxy-2-[fluorine-18] fluoro- d-glucose integrated with computed tomography (18F-FDG PET-CT) demonstrated diffuse cortical and subcortical hypometabolism. The patient was treated with a combination of immunosuppressive agents (corticosteroids, cyclophosphamide and rituximab) and progressively recovered normal neurocognitive functions. Taken together, these data suggest that CNS-GVHD may manifest as a reversible antibody-mediated functional encephalopathy. This report suggests for the first time the interest of screening for anti-neuronal antibodies and functional imaging with brain 18F-FDG PET-CT in diagnosing this severe complication of allogeneic hematopoietic cell transplantation (alloHSCT).
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Affiliation(s)
- Michelle Pirotte
- Department of Hematology, CHU of Liège and ULiege, CHU Sart-Tilman, 4000 Liège, Belgium
| | - Florence Forte
- Department of Neurology, CHU of Liège and ULiege, CHU Sart-Tilman, 4000 Liège, Belgium
| | - Laurence Lutteri
- Department of Clinical Biology, CHU of Liège and ULiege, CHU Sart-Tilman, 4000 Liège, Belgium
| | - Evelyne Willems
- Department of Hematology, CHU of Liège and ULiege, CHU Sart-Tilman, 4000 Liège, Belgium
| | - Unal Duran
- Department of Radiology, CHU of Liège and ULiege, CHU Sart-Tilman, 4000 Liège, Belgium
| | - Ludovic Belle
- Department of Hematology, CHU of Liège and ULiege, CHU Sart-Tilman, 4000 Liège, Belgium
| | - Frédéric Baron
- Department of Hematology, CHU of Liège and ULiege, CHU Sart-Tilman, 4000 Liège, Belgium
| | - Yves Beguin
- Department of Hematology, CHU of Liège and ULiege, CHU Sart-Tilman, 4000 Liège, Belgium
| | - Pierre Maquet
- Department of Neurology, CHU of Liège and ULiege, CHU Sart-Tilman, 4000 Liège, Belgium
| | - Olivier Bodart
- Department of Neurology, CHU of Liège and ULiege, CHU Sart-Tilman, 4000 Liège, Belgium
| | - Sophie Servais
- Department of Hematology, CHU of Liège and ULiege, CHU Sart-Tilman, 4000 Liège, Belgium.
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Ward G, Ramasamy S, Sykes JR, Prestwich R, Chowdhury F, Scarsbrook A, Murray P, Harris K, Crellin A, Hatfield P, Sebag-Montefiore D, Spezi E, Crosby T, Radhakrishna G. Superiority of Deformable Image Co-registration in the Integration of Diagnostic Positron Emission Tomography-Computed Tomography to the Radiotherapy Treatment Planning Pathway for Oesophageal Carcinoma. Clin Oncol (R Coll Radiol) 2016; 28:655-62. [PMID: 27266819 DOI: 10.1016/j.clon.2016.05.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2015] [Revised: 05/02/2016] [Accepted: 05/04/2016] [Indexed: 11/26/2022]
Abstract
AIMS To investigate the use of image co-registration in incorporating diagnostic positron emission tomography-computed tomography (PET-CT) directly into the radiotherapy treatment planning pathway, and to describe the pattern of local recurrence relative to the PET-avid volume. MATERIALS AND METHODS Fourteen patients were retrospectively identified, six of whom had local recurrence. The accuracy of deformable image registration (DIR) and rigid registration of the diagnostic PET-CT and recurrence CT, to the planning CT, were quantitatively assessed by comparing co-registration of oesophagus, trachea and aorta contours. DIR was used to examine the correlation between PET-avid volumes, dosimetry and site of recurrence. RESULTS Positional metrics including the dice similarity coefficient (DSC) and conformity index (CI), showed DIR to be superior to rigid registration in the co-registration of diagnostic and recurrence imaging to the planning CT. For diagnostic PET-CT, DIR was superior to rigid registration in the transfer of oesophagus (DSC=0.75 versus 0.65, P<0.009 and CI=0.59 versus 0.48, P<0.003), trachea (DSC=0.88 versus 0.65, P<0.004 and CI=0.78 versus 0.51, P<0.0001) and aorta structures (DSC=0.93 versus 0.86, P<0.006 and CI=0.86 versus 0.76, P<0.006). For recurrence imaging, DIR was superior to rigid registration in the transfer of trachea (DSC=0.91 versus 0.66, P<0.03 and CI=0.83 versus 0.51, P<0.02) and oesophagus structures (DSC=0.74 versus 0.51, P<0.004 and CI=0.61 versus 0.37, P<0.006) with a non-significant trend for the aorta (DSC=0.91 versus 0.75, P<0.08 and CI=0.83 versus 0.63, P<0.06) structure. A mean inclusivity index of 0.93 (range 0.79-1) showed that the relapse volume was within the planning target volume (PTVPET-CT); all relapses occurred within the high dose region. CONCLUSION DIR is superior to rigid registration in the co-registration of PET-CT and recurrence CT to the planning CT, and can be considered in the direct integration of PET-CT to the treatment planning process. Local recurrences occur within the PTVPET-CT, suggesting that this is a suitable target for dose-escalation strategies.
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Affiliation(s)
- G Ward
- Medical Physics and Engineering, Leeds Cancer Centre, Leeds Teaching Hospitals NHS Trust, Leeds, UK.
| | - S Ramasamy
- Radiation Oncology, Leeds Cancer Centre, Leeds Teaching Hospitals NHS Trust, Leeds, UK
| | - J R Sykes
- Radiation Oncology and Medical Physics, Blacktown Hospital, Blacktown, Australia
| | - R Prestwich
- Radiation Oncology, Leeds Cancer Centre, Leeds Teaching Hospitals NHS Trust, Leeds, UK
| | - F Chowdhury
- Clinical Radiology and Nuclear Medicine, Leeds Cancer Centre, Leeds Teaching Hospitals NHS Trust, Leeds, UK
| | - A Scarsbrook
- Clinical Radiology and Nuclear Medicine, Leeds Cancer Centre, Leeds Teaching Hospitals NHS Trust, Leeds, UK
| | - P Murray
- Radiation Oncology, Leeds Cancer Centre, Leeds Teaching Hospitals NHS Trust, Leeds, UK
| | - K Harris
- Radiation Oncology, Leeds Cancer Centre, Leeds Teaching Hospitals NHS Trust, Leeds, UK
| | - A Crellin
- Radiation Oncology, Leeds Cancer Centre, Leeds Teaching Hospitals NHS Trust, Leeds, UK
| | - P Hatfield
- Radiation Oncology, Leeds Cancer Centre, Leeds Teaching Hospitals NHS Trust, Leeds, UK
| | - D Sebag-Montefiore
- Radiation Oncology, Leeds Cancer Centre, Leeds Teaching Hospitals NHS Trust, Leeds, UK
| | - E Spezi
- Biomedical Engineering Research Group, School of Engineering, Cardiff University, Cardiff, UK
| | - T Crosby
- Velindre Cancer Centre, Velindre Hospital, Cardiff, UK
| | - G Radhakrishna
- Radiation Oncology, Leeds Cancer Centre, Leeds Teaching Hospitals NHS Trust, Leeds, UK
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Vlaming MLH, Läppchen T, Jansen HT, Kivits S, van Driel A, van de Steeg E, van der Hoorn JW, Sio CF, Steinbach OC, DeGroot J. PET-CT imaging with [(18)F]-gefitinib to measure Abcb1a/1b (P-gp) and Abcg2 (Bcrp1) mediated drug-drug interactions at the murine blood-brain barrier. Nucl Med Biol 2015; 42:833-41. [PMID: 26264927 DOI: 10.1016/j.nucmedbio.2015.07.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2015] [Revised: 06/10/2015] [Accepted: 07/12/2015] [Indexed: 11/15/2022]
Abstract
INTRODUCTION The efflux transporters P-glycoprotein (P-gp, ABCB1) and breast cancer resistance protein (BCRP, ABCG2) are expressed at the blood-brain barrier (BBB), and can limit the access of a wide range of drugs to the brain. In this study we developed a PET-CT imaging method for non-invasive, quantitative analysis of the effect of ABCB1 and ABCG2 on brain penetration of the anti-cancer drug gefitinib, and demonstrated the applicability of this method for identification and quantification of potential modulators of ABCB1 and ABCB2 using the dual inhibitor elacridar. METHODS In vitro cellular accumulation studies with [(14)C]-gefitinib were conducted in LLC-PK1, MDCKII, and the corresponding ABCB1/Abcb1a and ABCG2/Abcg2 overexpressing cell lines. Subsequently, in vivo brain penetration of [(18)F]-gefitinib was quantified by PET-CT imaging studies in wild-type, Abcg2(-/-), Abcb1a/1b(-/-), and Abcb1a/1b;Abcg2(-/-) mice. RESULTS In vitro studies showed that [(14)C]-gefitinib is a substrate of the human ABCB1 and ABCG2 transporters. After i.v. administration of [(18)F]-gefitinib (1mg/kg), PET-CT imaging showed 2.3-fold increased brain levels of [(18)F]-gefitinib in Abcb1a/1b;Abcg2(-/-) mice, compared to wild-type. Levels in single knockout animals were not different from wild-type, showing that Abcb1a/1b and Abcg2 together limit access of [(18)F]-gefitinib to the brain. Furthermore, enhanced brain accumulation of [(18)F]-gefitinib after administration of the ABCB1 and ABCG2 inhibitor elacridar (10 mg/kg) could be quantified with PET-CT imaging. CONCLUSIONS PET-CT imaging with [(18)F]-gefitinib is a powerful tool to non-invasively assess potential ABCB1- and ABCG2-mediated drug-drug interactions (DDIs) in vivo. ADVANCES IN KNOWLEDGE AND IMPLICATIONS FOR PATIENT CARE This minimally-invasive, [(18)F]-based PET-CT imaging method shows the interplay of ABCB1 and ABCG2 at the BBB in vivo. The method may be applied in the future to assess ABCB1 and ABCG2 activity at the BBB in humans, and for personalized treatment with drugs that are substrates of ABCB1 and/or ABCG2.
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Affiliation(s)
| | - Tilman Läppchen
- Philips Research, Department Biomolecular Engineering, The Netherlands
| | | | - Suzanne Kivits
- Philips Research, Life Science Facilities, HTC 11, Eindhoven, The Netherlands
| | - Andy van Driel
- Philips Research, Life Science Facilities, HTC 11, Eindhoven, The Netherlands
| | | | | | - Charles F Sio
- Philips Research, Department Biomolecular Engineering, The Netherlands
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Barešić M, Sreter KB, Brčić L, Hećimović A, Janevski Z, Anić B. Solitary pulmonary amyloidoma mimicking lung cancer on 18F-FDG PET-CT scan in systemic lupus erythematosus patient. Lupus 2015; 24:1546-51. [PMID: 26085598 DOI: 10.1177/0961203315591025] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2014] [Accepted: 05/18/2015] [Indexed: 11/15/2022]
Abstract
Localized amyloid deposits (tumoral amyloidosis or amyloidoma) are uncommon form of amyloidosis and nodular pulmonary amyloidomas are rarely found. This incidental finding can mimic a bronchopulmonary neoplasm and may occur secondarily to an infectious, inflammatory or lymphoproliferative disease. We report a case of a 62-year-old female with long-standing systemic lupus erythematosus (SLE) with low compliance who presented with radiologically-verified solitary pulmonary nodule. Work-up included positron emission tomography-computed tomography (PET-CT) scan, which revealed hypermetabolic uptake of (18)F-fluorodeoxyglucose, and lobectomy was performed. Staining of the tissue was positive for Congo red and was green birefringent under polarized light. Immunohistochemical methods excluded lymphoproliferative disease and confirmed amyloidoma. SLE was controlled with antimalarials and glucocorticoids. Pulmonary amyloidoma should be considered in the differential diagnosis of solitary lung nodules.
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Affiliation(s)
- M Barešić
- Division of Clinical Immunology and Rheumatology, Department of Internal Medicine, University of Zagreb, School of Medicine, University Hospital Center Zagreb, Kišpatićeva 12, 10000 Zagreb, Croatia
| | - K B Sreter
- Department of Clinical Immunology, Pulmonology, and Rheumatology, University Hospital Centre "Sestre Milosrdnice", Vinogradska cesta 17, 10000 Zagreb
| | - L Brčić
- Department of Pathology, University of Zagreb, School of Medicine, Universitiy Hospital Center Zagreb, Kišpatićeva 12, 10000 Zagreb, Croatia
| | - A Hećimović
- Department of Interstitial Diseases, Clinic for Respiratory Diseases "Jordanovac", University of Zagreb, School of Medicine, University Hospital Center Zagreb, Jordanovac 104, 10000 Zagreb, Croatia
| | - Z Janevski
- Department of Thoracic Surgery, Clinic for Respiratory Diseases "Jordanovac", University of Zagreb, School of Medicine, University Hospital Center Zagreb, Jordanovac 104, 10000 Zagreb, Croatia
| | - B Anić
- Division of Clinical Immunology and Rheumatology, Department of Internal Medicine, University of Zagreb, School of Medicine, University Hospital Center Zagreb, Kišpatićeva 12, 10000 Zagreb, Croatia
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Abstract
Positron emission tomography (PET) in combination with computed tomography (PET-CT) is commonly used to identify malignant lesion in the lung. Despite there being only a few reports in literature, PET-CT imaging may have many advantages in the study of sarcoidosis, being useful in the diagnosis as well as in monitoring the response to treatment. The object of this case report is to highlight the clinical utility of integrated PET-CT imaging for evaluation of patients with systemic sarcoidosis and for comparing baseline findings to follow-up readings.
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Affiliation(s)
- Roberto G Carbone
- Respiratory Unit, Department of Internal Medicine Regional Hospital Aosta, and University of Genoa, Genoa, Italy
| | | | - Robert P Baughman
- Department of Internal Medicine, University of Cincinnati, Cincinnati, Ohio, USA
| | - Elyse E Lower
- Department of Internal Medicine, University of Cincinnati, Cincinnati, Ohio, USA
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Perrone MG, Malerba P, Uddin J, Vitale P, Panella A, Crews BC, Daniel CK, Ghebreselasie K, Nickels M, Tantawy MN, Manning HC, Marnett LJ, Scilimati A. PET radiotracer [¹⁸F]-P6 selectively targeting COX-1 as a novel biomarker in ovarian cancer: preliminary investigation. Eur J Med Chem 2014; 80:562-8. [PMID: 24832612 DOI: 10.1016/j.ejmech.2014.04.074] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2013] [Revised: 04/23/2014] [Accepted: 04/25/2014] [Indexed: 02/06/2023]
Abstract
Cyclooxygenase-1 (COX-1), but not COX-2, is expressed at high levels in the early stages of human epithelial ovarian cancer where it seems to play a key role in cancer onset and progression. As a consequence, COX-1 is an ideal biomarker for early ovarian cancer detection. A series of novel fluorinated COX-1-targeted imaging agents derived from P6 was developed by using a highly selective COX-1 inhibitor as a lead compound. Among these new compounds, designed by structural modification of P6, 3-(5-chlorofuran-2-yl)-5-(fluoromethyl)-4-phenylisoxazole ([(18/19)F]-P6) is the most promising derivative [IC50 = 2.0 μM (purified oCOX-1) and 1.37 μM (hOVCAR-3 cell COX-1)]. Its tosylate precursor was also prepared and, a method for radio[(18)F]chemistry was developed and optimized. The radiochemistry was carried out using a carrier-free K(18)F/Kryptofix 2.2.2 complex, that afforded [(18)F]-P6 in good radiochemical yield (18%) and high purity (>95%). In vivo PET/CT imaging data showed that the radiotracer [(18)F]-P6 was selectively taken up by COX-1-expressing ovarian carcinoma (OVCAR 3) tumor xenografts as compared with the normal leg muscle. Our results suggest that [(18)F]-P6 might be an useful radiotracer in preclinical and clinical settings for in vivo PET-CT imaging of tissues that express elevated levels of COX-1.
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