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Phosphatidylserine in the Nervous System: Cytoplasmic Regulator of the AKT and PKC Signaling Pathways and Extracellular "Eat-Me" Signal in Microglial Phagocytosis. Mol Neurobiol 2023; 60:1050-1066. [PMID: 36401705 DOI: 10.1007/s12035-022-03133-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Accepted: 11/08/2022] [Indexed: 11/21/2022]
Abstract
Phosphatidylserine (PtdSer) is an important anionic phospholipid found in eukaryotic cells and has been proven to serve as a beneficial factor in the treatment of neurodegenerative diseases. PtdSer resides in the inner leaflet of the plasma membrane, where it is involved in regulating the AKT and PKC signaling pathways; however, it becomes exposed to the extracellular leaflet during neurodevelopmental processes and neurodegenerative diseases, participating in microglia-mediated synaptic and neuronal phagocytosis. In this paper, we review several characteristics of PtdSer, including the synthesis and translocation of PtdSer, the functions of cytoplasmic and exposed PtdSer, and different PtdSer-detection materials used to further understand the role of PtdSer in the nervous system.
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Effective and prolonged targeting of a nanocarrier to the inflammation site by functionalization with ZnBPMP and chitosan. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 131:112521. [PMID: 34857300 DOI: 10.1016/j.msec.2021.112521] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 10/19/2021] [Accepted: 10/22/2021] [Indexed: 02/07/2023]
Abstract
Efficient and selective targeting of inflamed tissues/organs is critical for diagnosis and therapy. Although nanomaterials themselves have an intrinsic advantage due to their size for targeting inflammation sites, additional functionalization of the nanomaterials with proper targeting moieties is desired to enhance the targeting efficiency. In this study, we aimed to improve the inflammation targeting characteristics of a pluronic-based nanocarrier, which has advantages as a nanosized delivery cargo for diverse molecules, by conjugating with chitosan and ZnBPMP (two Zn(II) ions chelated 2,6-bis[(bis(2-pyridylmethyl)amino)-methyl]-4-methylphenol) moiety. Specific and significant cellular uptake and interaction between the nanocarrier functionalized with ZnBPMP ligand and chitosan to an apoptosis-induced immune cell line were observed in vitro. An inflammation model in the mouse ear caused by skin hypersensitivity was used to evaluate the effect of functionalization with chitosan and ZnBPMP moiety by comparing with various control groups. Functionalization of the nanocarrier with chitosan greatly enhanced the in vivo circulation time of the nanocarrier, so prolonged targeting ability of the nanocarrier to the inflamed ear was achieved. Additional ZnBPMP functionalization to chitosan-functionalized nanocarrier also resulted in significantly improved initial targeting and further enhancement in the targeting until 5 days to the inflamed ear and the decreased non-specific accumulation of the nanocarrier to the remaining body. Thus, developed nanocarrier has a high potential as a drug delivery carrier as well as a diagnostic agent to the inflammation sites.
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Scott‐Hewitt N, Perrucci F, Morini R, Erreni M, Mahoney M, Witkowska A, Carey A, Faggiani E, Schuetz LT, Mason S, Tamborini M, Bizzotto M, Passoni L, Filipello F, Jahn R, Stevens B, Matteoli M. Local externalization of phosphatidylserine mediates developmental synaptic pruning by microglia. EMBO J 2020; 39:e105380. [PMID: 32657463 PMCID: PMC7429741 DOI: 10.15252/embj.2020105380] [Citation(s) in RCA: 209] [Impact Index Per Article: 52.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 06/05/2020] [Accepted: 06/15/2020] [Indexed: 12/21/2022] Open
Abstract
Neuronal circuit assembly requires the fine balance between synapse formation and elimination. Microglia, through the elimination of supernumerary synapses, have an established role in this process. While the microglial receptor TREM2 and the soluble complement proteins C1q and C3 are recognized as key players, the neuronal molecular components that specify synapses to be eliminated are still undefined. Here, we show that exposed phosphatidylserine (PS) represents a neuronal "eat-me" signal involved in microglial-mediated pruning. In hippocampal neuron and microglia co-cultures, synapse elimination can be partially prevented by blocking accessibility of exposed PS using Annexin V or through microglial loss of TREM2. In vivo, PS exposure at both hippocampal and retinogeniculate synapses and engulfment of PS-labeled material by microglia occurs during established developmental periods of microglial-mediated synapse elimination. Mice deficient in C1q, which fail to properly refine retinogeniculate connections, have elevated presynaptic PS exposure and reduced PS engulfment by microglia. These data provide mechanistic insight into microglial-mediated synapse pruning and identify a novel role of developmentally regulated neuronal PS exposure that is common among developing brain structures.
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Affiliation(s)
- Nicole Scott‐Hewitt
- F.M. Kirby Center for NeurobiologyBoston Children's HospitalBostonMAUSA
- Stanley Center for Psychiatric ResearchThe Broad Institute of MIT and HarvardCambridgeMAUSA
| | - Fabio Perrucci
- Laboratory of Pharmacology and Brain PathologyNeurocenterHumanitas Clinical and Research Center ‐ IRCCSRozzano (MI)Italy
- Department of Biomedical SciencesHumanitas UniversityPieve Emanuele (MI)Italy
| | - Raffaella Morini
- Laboratory of Pharmacology and Brain PathologyNeurocenterHumanitas Clinical and Research Center ‐ IRCCSRozzano (MI)Italy
| | - Marco Erreni
- Unit of Advanced Optical MicroscopyHumanitas Clinical and Research Center ‐ IRCCSRozzano (MI)Italy
| | - Matthew Mahoney
- F.M. Kirby Center for NeurobiologyBoston Children's HospitalBostonMAUSA
| | - Agata Witkowska
- Laboratory of NeurobiologyMax Planck Institute for Biophysical ChemistryGöttingenGermany
- Department of Molecular Pharmacology and Cell BiologyLeibniz‐Forschungsinstitut für Molekulare Pharmakologie (FMP)BerlinGermany
| | - Alanna Carey
- F.M. Kirby Center for NeurobiologyBoston Children's HospitalBostonMAUSA
| | - Elisa Faggiani
- Laboratory of Pharmacology and Brain PathologyNeurocenterHumanitas Clinical and Research Center ‐ IRCCSRozzano (MI)Italy
| | | | - Sydney Mason
- F.M. Kirby Center for NeurobiologyBoston Children's HospitalBostonMAUSA
| | - Matteo Tamborini
- Laboratory of Pharmacology and Brain PathologyNeurocenterHumanitas Clinical and Research Center ‐ IRCCSRozzano (MI)Italy
| | - Matteo Bizzotto
- Department of Biomedical SciencesHumanitas UniversityPieve Emanuele (MI)Italy
| | - Lorena Passoni
- Laboratory of Pharmacology and Brain PathologyNeurocenterHumanitas Clinical and Research Center ‐ IRCCSRozzano (MI)Italy
| | - Fabia Filipello
- Laboratory of Pharmacology and Brain PathologyNeurocenterHumanitas Clinical and Research Center ‐ IRCCSRozzano (MI)Italy
- Department of Biomedical SciencesHumanitas UniversityPieve Emanuele (MI)Italy
- Present address:
Department of NeurologyWashington UniversitySt. LouisMOUSA
| | - Reinhard Jahn
- Laboratory of NeurobiologyMax Planck Institute for Biophysical ChemistryGöttingenGermany
- University of GöttingenGöttingenGermany
| | - Beth Stevens
- F.M. Kirby Center for NeurobiologyBoston Children's HospitalBostonMAUSA
- Stanley Center for Psychiatric ResearchThe Broad Institute of MIT and HarvardCambridgeMAUSA
- Howard Hughes Medical InstituteBoston Children's HospitalBostonMAUSA
| | - Michela Matteoli
- Laboratory of Pharmacology and Brain PathologyNeurocenterHumanitas Clinical and Research Center ‐ IRCCSRozzano (MI)Italy
- CNR Institute of NeuroscienceMilanoItaly
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4
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Zhang D, Jin Q, Jiang C, Gao M, Ni Y, Zhang J. Imaging Cell Death: Focus on Early Evaluation of Tumor Response to Therapy. Bioconjug Chem 2020; 31:1025-1051. [PMID: 32150392 DOI: 10.1021/acs.bioconjchem.0c00119] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Cell death plays a prominent role in the treatment of cancer, because most anticancer therapies act by the induction of cell death including apoptosis, necrosis, and other pathways of cell death. Imaging cell death helps to identify treatment responders from nonresponders and thus enables patient-tailored therapy, which will increase the likelihood of treatment response and ultimately lead to improved patient survival. By taking advantage of molecular probes that specifically target the biomarkers/biochemical processes of cell death, cell death imaging can be successfully achieved. In recent years, with the increased understanding of the molecular mechanism of cell death, a variety of well-defined biomarkers/biochemical processes of cell death have been identified. By targeting these established cell death biomarkers/biochemical processes, a set of molecular imaging probes have been developed and evaluated for early monitoring treatment response in tumors. In this review, we mainly present the recent advances in identifying useful biomarkers/biochemical processes for both apoptosis and necrosis imaging and in developing molecular imaging probes targeting these biomarkers/biochemical processes, with a focus on their application in early evaluation of tumor response to therapy.
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Affiliation(s)
- Dongjian Zhang
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, P.R. China.,Laboratories of Translational Medicine, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing 210028, P.R. China
| | - Qiaomei Jin
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, P.R. China.,Laboratories of Translational Medicine, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing 210028, P.R. China
| | - Cuihua Jiang
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, P.R. China.,Laboratories of Translational Medicine, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing 210028, P.R. China
| | - Meng Gao
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, P.R. China.,Laboratories of Translational Medicine, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing 210028, P.R. China
| | - Yicheng Ni
- Theragnostic Laboratory, Campus Gasthuisberg, KU Leuven, Leuven 3000, Belgium
| | - Jian Zhang
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, P.R. China.,Laboratories of Translational Medicine, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing 210028, P.R. China
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Li J, Gray BD, Pak KY, Ng CK. Targeting phosphatidylethanolamine and phosphatidylserine for imaging apoptosis in cancer. Nucl Med Biol 2019; 78-79:23-30. [PMID: 31678784 DOI: 10.1016/j.nucmedbio.2019.10.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Revised: 09/03/2019] [Accepted: 10/03/2019] [Indexed: 02/04/2023]
Abstract
INTRODUCTION Both phosphatidylethanolamine (PE) and phosphatidylserine (PS) can be externalized to the outer cell membrane in apoptosis. Thus the objective was to determine whether PE-targeting 18F-duramycin and PS-targeting 18F-Zn-DPA could be used for imaging apoptosis. METHODS Duramycin and Zn-DPA were labeled with either 18F-Al or 18F-SFB. U937 cells were incubated with four different concentrations of camptothecin (CPT). For assessing the effect of incubation time on uptake, 37 MBq of radiotracer was added to cells incubated for 15, 30, 60, and 120 min at 37 °C. For blocking experiments, 150 μg duramycin and 40 μg Zn-DPA were added to cells for 15 min prior to the addition of either duramycin or Zn-DPA labeled with 18F. Apoptosis was measured by flow cytometry using an annexin-V/PI kit. Cells were co-stained with Hoechst, Cy5-duramycin, and PSVue480 (FITC-Zn-DPA) to localize fluorescent dye uptake in cells. RESULTS Apoptosis in cells increased proportionally with CTP as confirmed by both flow cytometry and fluorescent staining. Both FITC-Zn-DPA and FITC-duramycin localized mainly on the cell membrane during early apoptosis and then translocated to the inside during late apoptosis. Uptake of FITC-duramycin, however, was higher than that of FITC-Zn-DPA. Cellular uptake of four different radiotracers was also proportional to the degree of apoptosis, increasing slightly over time and reaching a plateau at about 1 h. The blocking experiments demonstrated that uptake in all the control groups was predominantly non-specific, whereas the specific uptake in all the treated groups was at least 50% for both 18F labeled duramycin and Zn-DPA. CONCLUSION Both PE-targeting 18F-duramycin and PS-targeting 18F-Zn-DPA could be considered as potential radiotracers for imaging cellular apoptosis. Advances in knowledge and implications for patient care: Cellular data support the further development of radiotracers targeting either PE or PS for imaging apoptosis, which can associate with clinical outcome for cancer patients.
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Affiliation(s)
- Junling Li
- University of Louisville School of Medicine, Louisville, KY, United States of America
| | - Brian D Gray
- Molecular Targeting Technologies, Inc., West Chester, PA, United States of America
| | - Koon Y Pak
- Molecular Targeting Technologies, Inc., West Chester, PA, United States of America
| | - Chin K Ng
- University of Louisville School of Medicine, Louisville, KY, United States of America.
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Bhatnagar S, Khera E, Liao J, Eniola V, Hu Y, Smith DE, Thurber GM. Oral and Subcutaneous Administration of a Near-Infrared Fluorescent Molecular Imaging Agent Detects Inflammation in a Mouse Model of Rheumatoid Arthritis. Sci Rep 2019; 9:4661. [PMID: 30858419 PMCID: PMC6411963 DOI: 10.1038/s41598-019-38548-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Accepted: 12/31/2018] [Indexed: 12/17/2022] Open
Abstract
Rheumatoid arthritis (RA) is an inflammatory autoimmune disease that causes irreversible damage to the joints. However, effective drugs exist that can stop disease progression, leading to intense interest in early detection and treatment monitoring to improve patient outcomes. Imaging approaches have the potential for early detection, but current methods lack sensitivity and/or are time-consuming and expensive. We examined potential routes for self-administration of molecular imaging agents in the form of subcutaneous and oral delivery of an integrin binding near-infrared (NIR) fluorescent imaging agent in an animal model of RA with the long-term goal of increasing safety and patient compliance for screening. NIR imaging has relatively low cost, uses non-ionizing radiation, and provides minimally invasive spatial and molecular information. This proof-of-principle study shows significant uptake of an IRDye800CW agent in inflamed joints of a collagen antibody induced arthritis (CAIA) mouse model compared to healthy joints, irrespective of the method of administration. The imaging results were extrapolated to clinical depths in silico using a 3D COMSOL model of NIR fluorescence imaging in a human hand to examine imaging feasability. With target to background concentration ratios greater than 5.5, which are achieved in the mouse model, these probes have the potential to identify arthritic joints following oral delivery at clinically relevant depths.
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Affiliation(s)
- Sumit Bhatnagar
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI, 48109, United States
| | - Eshita Khera
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI, 48109, United States
| | - Jianshan Liao
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI, 48109, United States
| | - Victoria Eniola
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI, 48109, United States
| | - Yongjun Hu
- Department of Pharmaceutical Sciences, University of Michigan, Ann Arbor, MI, 48109, United States
| | - David E Smith
- Department of Pharmaceutical Sciences, University of Michigan, Ann Arbor, MI, 48109, United States
| | - Greg M Thurber
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI, 48109, United States.
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, 48109, United States.
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Guo R, Li Z, Zhou X, Huang C, Hu Y, Geng S, Chen X, Li Q, Pan Z, Jiao X. Induction of arthritis in chickens by infection with novel virulent Salmonella Pullorum strains. Vet Microbiol 2018; 228:165-172. [PMID: 30593363 DOI: 10.1016/j.vetmic.2018.11.032] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Revised: 11/26/2018] [Accepted: 11/30/2018] [Indexed: 01/16/2023]
Abstract
Salmonella enterica subsp. enterica serovar Gallinarum biovar Pullorum (Salmonella Pullorum) is a host-specific serovar causing systemic infection with high mortality in young chicks. Pullorum disease is characterized by white diarrhea. However, arthritis has become increasingly frequent recently, particularly in southern China. The aim of the present study was to determine the pathogenesis and arthritis induction of new Salmonella Pullorum isolates. We isolated and identified five Salmonella Pullorum strains from broilers with bacterial arthritis and lameness in a commercial poultry farm. Four of five isolates were resistant to at least three classes of antibiotics and were defined as multidrug-resistant Salmonella Pullorum. All isolates had the same CRISPR sequence type and belonged to a single major cluster. The isolates exhibited high capability of biofilm formation, which may facilitate their dispersal and survival in hostile habitats, and showed high virulence based on embryo lethality and inoculation of newly hatched chicks. Tissue distribution analysis confirmed that SP1621 was more adapted to colonize the joint when compared to the white diarrhoea-causing Salmonella Pullorum reference strain S06004. Reproducible arthritis and typical joint lesions were observed in SP1621-infected chicks, and histopathological examination showed necrotic synovitis and cartilage tissue hyperplasia of the joint. Koch's postulates were confirmed when the novel Salmonella Pullorum strain was re-isolated from the joint tissues of experimentally inoculated chicks. These novel Salmonella Pullorum isolates have unique ability to induce arthritis in chickens, representing expanded pathogenic diversity in China. These results suggest the need for strict control strategies and new vaccines to prevent the disease.
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Affiliation(s)
- Rongxian Guo
- Jiangsu Key Laboratory of Zoonosis, Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou, Jiangsu, 225009, China; Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agrifood Safety and Quality, Ministry of Agriculture of China, Yangzhou University, Yangzhou, Jiangsu, 225009, China; Joint International Research Laboratory of Agriculture & Agri-Product Safety, Yangzhou University, Yangzhou, Jiangsu, 225009, China
| | - Zhuoyang Li
- Jiangsu Key Laboratory of Zoonosis, Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou, Jiangsu, 225009, China; Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agrifood Safety and Quality, Ministry of Agriculture of China, Yangzhou University, Yangzhou, Jiangsu, 225009, China
| | - Xiaohui Zhou
- Department of Pathobiology and Veterinary Science, University of Connecticut, Storrs, CT, 06269, USA
| | - Cuiying Huang
- Jiangsu Key Laboratory of Zoonosis, Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou, Jiangsu, 225009, China; Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agrifood Safety and Quality, Ministry of Agriculture of China, Yangzhou University, Yangzhou, Jiangsu, 225009, China
| | - Yachen Hu
- Jiangsu Key Laboratory of Zoonosis, Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou, Jiangsu, 225009, China; Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agrifood Safety and Quality, Ministry of Agriculture of China, Yangzhou University, Yangzhou, Jiangsu, 225009, China
| | - Shizhong Geng
- Jiangsu Key Laboratory of Zoonosis, Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou, Jiangsu, 225009, China; Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agrifood Safety and Quality, Ministry of Agriculture of China, Yangzhou University, Yangzhou, Jiangsu, 225009, China; Joint International Research Laboratory of Agriculture & Agri-Product Safety, Yangzhou University, Yangzhou, Jiangsu, 225009, China
| | - Xiang Chen
- Jiangsu Key Laboratory of Zoonosis, Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou, Jiangsu, 225009, China; Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agrifood Safety and Quality, Ministry of Agriculture of China, Yangzhou University, Yangzhou, Jiangsu, 225009, China; Joint International Research Laboratory of Agriculture & Agri-Product Safety, Yangzhou University, Yangzhou, Jiangsu, 225009, China
| | - Qiuchun Li
- Jiangsu Key Laboratory of Zoonosis, Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou, Jiangsu, 225009, China; Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agrifood Safety and Quality, Ministry of Agriculture of China, Yangzhou University, Yangzhou, Jiangsu, 225009, China; Joint International Research Laboratory of Agriculture & Agri-Product Safety, Yangzhou University, Yangzhou, Jiangsu, 225009, China
| | - Zhiming Pan
- Jiangsu Key Laboratory of Zoonosis, Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou, Jiangsu, 225009, China; Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agrifood Safety and Quality, Ministry of Agriculture of China, Yangzhou University, Yangzhou, Jiangsu, 225009, China; Joint International Research Laboratory of Agriculture & Agri-Product Safety, Yangzhou University, Yangzhou, Jiangsu, 225009, China
| | - Xinan Jiao
- Jiangsu Key Laboratory of Zoonosis, Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou, Jiangsu, 225009, China; Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agrifood Safety and Quality, Ministry of Agriculture of China, Yangzhou University, Yangzhou, Jiangsu, 225009, China; Joint International Research Laboratory of Agriculture & Agri-Product Safety, Yangzhou University, Yangzhou, Jiangsu, 225009, China.
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Wu H, Wu H, He Y, Gan Z, Xu Z, Zhou M, Liu S, Liu H. Synovitis in mice with inflammatory arthritis monitored with quantitative analysis of dynamic contrast-enhanced NIR fluorescence imaging using iRGD-targeted liposomes as fluorescence probes. Int J Nanomedicine 2018; 13:1841-1850. [PMID: 29615837 PMCID: PMC5870656 DOI: 10.2147/ijn.s155475] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND Rheumatoid arthritis (RA) is a common inflammatory disorder characterized primarily by synovitis and pannus formation in multiple joints, causing joints destruction and irreversible disability in most cases. Early diagnosis and effective therapy monitoring of RA are of importance for achieving the favorable prognosis. METHODS We first prepared the targeted fluorescence probes, and then explored the feasibility of near-infrared (NIR) fluorescence molecular imaging to detect and evaluate the RA via the targeted fluorescence probes by quantitative analysis in this study. RESULTS The targeted fluorescence probes (indocyanine green-liposomes decorated with iRGD peptide [iLPs]) was successfully prepared. The quantitative analysis found that strong fluorescence signal was detected in inflamed paws and the fluorescence signal in iLPs group was 3.03-fold higher than that in non-targeted (indocyanine green-liposomes decorated without iRGD peptide [LPs]) group (P<0.01) at 15 min after injection, whereas the fluorescence signal from iLPs signal can almost not be observed in the non-inflamed paws, showing the high sensitivity and accuracy for arthritis by the NIR fluorescence imaging based on iLPs. CONCLUSION The NIR fluorescence imaging by iLPs may facilitate improved arthritis diagnosis and early assessment of the disease progression by providing an in vivo characterization of angiogenesis in inflammatory joint diseases.
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Affiliation(s)
- Hao Wu
- Department of Ultrasonography, Guangdong Second Provincial General Hospital Affiliated to Southern Medical University, Guangzhou, China
- Department of Ultrasonography, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China
| | - Haohan Wu
- Department of Ultrasonography, Guangdong Second Provincial General Hospital Affiliated to Southern Medical University, Guangzhou, China
- Department of Ultrasonography, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China
| | - Yanni He
- Department of Ultrasonography, Guangdong Second Provincial General Hospital Affiliated to Southern Medical University, Guangzhou, China
| | - Zhen Gan
- Department of Ultrasonography, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China
| | - Zhili Xu
- Department of Ultrasonography, Guangdong Second Provincial General Hospital Affiliated to Southern Medical University, Guangzhou, China
- Department of Ultrasonography, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China
| | - Meijun Zhou
- Department of Ultrasonography, Guangdong Second Provincial General Hospital Affiliated to Southern Medical University, Guangzhou, China
- Department of Ultrasonography, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China
| | - Sai Liu
- Department of Ultrasonography, Guangdong Second Provincial General Hospital Affiliated to Southern Medical University, Guangzhou, China
- Department of Ultrasonography, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China
| | - Hongmei Liu
- Department of Ultrasonography, Guangdong Second Provincial General Hospital Affiliated to Southern Medical University, Guangzhou, China
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9
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Jiang L, Qin Y, Lei F, Chen X, Zhou Z. Retinoic acid receptors α and γ are involved in antioxidative protection in renal tubular epithelial cells injury induced by hypoxia/reoxygenation. Free Radic Res 2017; 51:873-885. [PMID: 29096559 DOI: 10.1080/10715762.2017.1387655] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Renal interstitial fibrosis (RIF) is a common outcome in various chronic kidney diseases. Injury to renal tubular epithelial cell (RTEC) is major link in RIF. Hypoxia is one of the common factors for RTEC damage. Retinoic acid receptors (RARs), RARα, RARβ and RARγ, are evolutionary conserved and pleiotropic proteins that have been involved in various cellular functions, including proliferation, differentiation, apoptosis, and transcription. Recently, we discovered that aberrant expression of RARs was involved in the development of RIF in rats. Here, we investigated the role of RARs in the hypoxia/reoxygenation (HR) damage model in RTEC with virus-based delivery vectors to knockdown or overexpress RARs. Relevant indicators were detected. Our results showed that HR inhibited RARα and RARγ expressions in a time-dependent manner in RTECs; however, the expression of RARβ was not changed obviously. RARα and RARγ overexpression could protect cells from oxidative stress-induced injury by inhibiting HR-induced intracellular superoxide anion (O2-) generation, cell viability and mitochondria membrane potential (MMP) decrease and transforming growth factor β1 (TGF-β1) expression and promoting endogenous antioxidant defense components, superoxide dismutase (SOD) and glutathione (GSH). Meanwhile, inhibition of RARα and RARγ expressions by small interference RNAs (siRNA) resulted in a less resistance of RTEC to HR as shown in increased O2- production and TGF-β1 expression and decreased cell viability, MMP, SOD and GSH levels. These data indicates that RARα and RARγ act as positive regulators to offset oxidative damage and profibrosis cytokine accumulation and therefore has an antioxidative effect.
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Affiliation(s)
- Ling Jiang
- a Department of Pediatrics , The First Affiliated Hospital of Guangxi Medical University , Nanning , PR China
| | - Yuanhan Qin
- a Department of Pediatrics , The First Affiliated Hospital of Guangxi Medical University , Nanning , PR China
| | - Fengying Lei
- a Department of Pediatrics , The First Affiliated Hospital of Guangxi Medical University , Nanning , PR China
| | - Xiuping Chen
- a Department of Pediatrics , The First Affiliated Hospital of Guangxi Medical University , Nanning , PR China
| | - Zhiqiang Zhou
- a Department of Pediatrics , The First Affiliated Hospital of Guangxi Medical University , Nanning , PR China
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10
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Li M, Hao M, Jiang D, Chen Y, Wang W. In Vivo Tracking of Human Adipose-derived Mesenchymal Stem Cells in a Rat Knee Osteoarthritis Model with Fluorescent Lipophilic Membrane Dye. J Vis Exp 2017. [PMID: 29053693 DOI: 10.3791/56273] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
In order to support the clinical application of human adipose-derived mesenchymal stem cell (haMSC) therapy for knee osteoarthritis (KOA), we examined the efficacy of cell persistence and biodistribution of haMSCs in animal models. We demonstrated a method to label the cell membrane of haMSCs with lipophilic fluorescent dye. Subsequently, intra-articular injection of the labeled cells in rats with surgically induced KOA was monitored dynamically by an in vivo imaging system. We employed the lipophilic carbocyanines DiD (DilC18 (5)), a far-red fluorescent Dil (dialkylcarbocyanines) analog, which utilized a red laser to avoid excitation of the natural green autofluorescence from surrounding tissues. Furthermore, the red-shifted emission spectra of DiD allowed deep-tissue imaging in live animals and the labeling procedure caused no cytotoxic effects or functional damage to haMSCs. This approach has been shown to be an efficient tracking method for haMSCs in a rat KOA model. The application of this method could also be used to determine the optimal administration route and dosage of MSCs from other sources in pre-clinical studies.
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Affiliation(s)
- Meng Li
- Cellular Biomedicine Group, China; Cellular Biomedicine Group, California
| | - Ming Hao
- Cellular Biomedicine Group, China; Cellular Biomedicine Group, California
| | - Dong Jiang
- Department of Orthopedics, Shanghai TCM-Integrated Hospital
| | - Yanxi Chen
- Department of Orthopedics, Shanghai East Hospital, Tongji University
| | - Wen Wang
- Cellular Biomedicine Group, China; Cellular Biomedicine Group, California;
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11
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Albumin-based nanoparticles as methylprednisolone carriers for targeted delivery towards the neonatal Fc receptor in glomerular podocytes. Int J Mol Med 2017; 39:851-860. [PMID: 28259932 PMCID: PMC5360426 DOI: 10.3892/ijmm.2017.2902] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Accepted: 02/16/2017] [Indexed: 01/08/2023] Open
Abstract
Glucocorticoids (GCs) are commonly used in the treatment of nephrotic syndrome. However, high doses and long periods of GC therapy can result in severe side effects. The present study aimed to selectively deliver albumin-methylprednisolone (MP) nanoparticles towards glomerular podocytes, which highly express the specific neonatal Fc receptor (FcRn) of albumin. Bovine serum albumin (BSA) was labeled with a fluorescent dye and linked with modified MP via an amide bond. The outcome nanoparticle named BSA633-MP showed a uniform size with a diameter of approximately 10 nm and contained 12 drug molecules on average. The nanoconjugates were found to be stable at pH 7.4 and acid-sensitive at pH 4.0, with approximately 72% release of the MP drug after 48 h of incubation. The nanoparticle demonstrated a 36-fold uptake in receptor-specific cellular delivery in the FcRn-expressing human podocytes compared to the uptake in the non-FcRn-expressing control cells. Co-localization further confirmed that uptake of the nanoconjugates involved receptor-mediated endocytosis followed by lysosome associated transportation. In vitro cellular experiments indicated that the BSA633-MP ameliorated puromycin aminonucleoside-induced podocyte apoptosis. Moreover, in vivo fluorescence molecular imaging showed that BSA633-MP was mainly accumulated in the liver and kidney after intravenous dosing for 24 h. Collectively, this study may provide an approach for the effective and safe therapy of nephrotic syndrome.
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12
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Chen R, Schwander M, Barbe MF, Chan MM. Ossicular Bone Damage and Hearing Loss in Rheumatoid Arthritis: A Correlated Functional and High Resolution Morphometric Study in Collagen-Induced Arthritic Mice. PLoS One 2016; 11:e0164078. [PMID: 27690307 PMCID: PMC5045188 DOI: 10.1371/journal.pone.0164078] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Accepted: 09/19/2016] [Indexed: 01/13/2023] Open
Abstract
Globally, a body of comparative case-control studies suggests that rheumatoid arthritis (RA) patients are more prone to developing hearing loss (HL). However, experimental evidence that supports this hypothesis is still lacking because the human auditory organ is not readily accessible. The aim of this study was to determine the association between bone damage to the ossicles of the middle ear and HL, using a widely accepted murine model of collagen-induced arthritis (RA mice). Diarthrodial joints in the middle ear were examined with microcomputer tomography (microCT), and hearing function was assessed by auditory brainstem response (ABR). RA mice exhibited significantly decreased hearing sensitivity compared to age-matched controls. Additionally, a significant narrowing of the incudostapedial joint space and an increase in the porosity of the stapes were observed. The absolute latencies of all ABR waves were prolonged, but mean interpeak latencies were not statistically different. The observed bone defects in the middle ear that were accompanied by changes in ABR responses were consistent with conductive HL. This combination suggests that conductive impairment is at least part of the etiology of RA-induced HL in a murine model. Whether the inner ear sustains bone erosion or other pathology, and whether the cochlear nerve sustains pathology await subsequent studies. Considering the fact that certain anti-inflammatories are ototoxic in high doses, monitoring RA patients’ auditory function is advisable as part of the effort to ensure their well-being.
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Affiliation(s)
- Rensa Chen
- Department of Microbiology and Immunology, Lewis Katz School of Medicine-Temple University, Philadelphia, PA, 19140, United States of America
| | - Martin Schwander
- Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ, 08854, United States of America
| | - Mary F. Barbe
- Department of Anatomy, Lewis Katz School of Medicine-Temple University, Philadelphia, PA, 19140, United States of America
| | - Marion M. Chan
- Department of Microbiology and Immunology, Lewis Katz School of Medicine-Temple University, Philadelphia, PA, 19140, United States of America
- * E-mail:
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13
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Rice DR, Clear KJ, Smith BD. Imaging and therapeutic applications of zinc(ii)-dipicolylamine molecular probes for anionic biomembranes. Chem Commun (Camb) 2016; 52:8787-801. [PMID: 27302091 PMCID: PMC4949593 DOI: 10.1039/c6cc03669d] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
This feature article describes the development of synthetic zinc(ii)-dipicolylamine (ZnDPA) receptors as selective targeting agents for anionic membranes in cell culture and living subjects. There is a strong connection between anionic cell surface charge and disease, and ZnDPA probes have been employed extensively for molecular imaging and targeted therapeutics. Fluorescence and nuclear imaging applications include detection of diseases such as cancer, neurodegeneration, arthritis, and microbial infection, and also quantification of cell death caused by therapy. Therapeutic applications include selective targeting of cytotoxic agents and drug delivery systems, photodynamic inactivation, and modulation of the immune system. The article concludes with a summary of expected future directions.
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Affiliation(s)
- Douglas R Rice
- Department of Chemistry and Biochemistry, 236 Nieuwland Science Hall, University of Notre Dame, Notre Dame, 46556 IN, USA.
| | - Kasey J Clear
- Department of Chemistry and Biochemistry, 236 Nieuwland Science Hall, University of Notre Dame, Notre Dame, 46556 IN, USA.
| | - Bradley D Smith
- Department of Chemistry and Biochemistry, 236 Nieuwland Science Hall, University of Notre Dame, Notre Dame, 46556 IN, USA.
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14
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Cho H, Bhatti FUR, Yoon TW, Hasty KA, Stuart JM, Yi AK. Non-invasive dual fluorescence in vivo imaging for detection of macrophage infiltration and matrix metalloproteinase (MMP) activity in inflammatory arthritic joints. BIOMEDICAL OPTICS EXPRESS 2016; 7:1842-1852. [PMID: 27231625 PMCID: PMC4871085 DOI: 10.1364/boe.7.001842] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Revised: 03/29/2016] [Accepted: 03/31/2016] [Indexed: 06/05/2023]
Abstract
Detection and intervention at an early stage is a critical factor to impede arthritis progress. Here we present a non-invasive method to detect inflammatory changes in joints of arthritic mice. Inflammation was monitored by dual fluorescence optical imaging for near-infrared fluorescent (750F) matrix-metalloproteinase activatable agent and allophycocyanin-conjugated anti-mouse CD11b. Increased intensity of allophycocyanin (indication of macrophage accumulation) and 750F (indication of matrix-metalloproteinase activity) showed a biological relationship with the arthritis severity score and the histopathology score of arthritic joints. Our results demonstrate that this method can be used to detect early stages of arthritis with minimum intervention in small animal models.
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Affiliation(s)
- Hongsik Cho
- Departments of Orthopedics and Biomedical Engineering, University of Tennessee Health Science Center-Campbell Clinic, Memphis, 38104, USA
- Veterans Affairs Medical Center-Memphis, TN, 38104, USA
| | - Fazal-Ur-Rehman Bhatti
- Departments of Orthopedics and Biomedical Engineering, University of Tennessee Health Science Center-Campbell Clinic, Memphis, 38104, USA
| | - Tae Won Yoon
- Departments of Microbiology, Immunology and Biochemistry, University of Tennessee Health Science Center, Memphis, 38104, USA
| | - Karen A. Hasty
- Departments of Orthopedics and Biomedical Engineering, University of Tennessee Health Science Center-Campbell Clinic, Memphis, 38104, USA
- Veterans Affairs Medical Center-Memphis, TN, 38104, USA
| | - John M. Stuart
- Veterans Affairs Medical Center-Memphis, TN, 38104, USA
- Department of Medicine, University of Tennessee Health Science Center, Memphis, USA
| | - Ae-Kyung Yi
- Department of Medicine, University of Tennessee Health Science Center, Memphis, USA
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15
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Marenzana M, Vande Velde G. Refine, reduce, replace: Imaging of fibrosis and arthritis in animal models. Best Pract Res Clin Rheumatol 2015; 29:715-40. [DOI: 10.1016/j.berh.2016.02.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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16
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Scales HE, Ierna M, Smith KM, Ross K, Meiklejohn GR, Patterson-Kane JC, McInnes IB, Brewer JM, Garside P, Maffia P. Assessment of murine collagen-induced arthritis by longitudinal non-invasive duplexed molecular optical imaging. Rheumatology (Oxford) 2015; 55:564-72. [PMID: 26475798 DOI: 10.1093/rheumatology/kev361] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2015] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE In the present study we evaluated the use of four commercially available fluorescent probes to monitor disease activity in murine CIA and its suppression during glucocorticoid therapy. METHODS Arthritis was induced in male DBA/1 mice by immunization with type II collagen in Complete Freund's Adjuvant, followed by a boost of collagen in PBS. Four fluorescent probes from PerkinElmer in combination [ProSense 750 fluorescent activatable sensor technology (FAST) with Neutrophil Elastase 680 FAST and MMPSense 750 FAST with CatK 680 FAST] were used to monitor disease development from day 5 through to day 40 post-immunization. Fluorescence generated in vivo by the probes was correlated with clinical and histological score and paw measurements. RESULTS The fluorescence intensity emitted by each probe was shown to correlate with the conventional measurements of disease. The highest degree of correlation was observed with ProSense 750 FAST in combination with Neutrophil Elastase 680 FAST; these probes were then used to successfully assess CIA suppression during dexamethasone treatment. CONCLUSION We have demonstrated that longitudinal non-invasive duplexed optical fluorescence imaging provides a simple assessment of arthritic disease activity within the joints of mice following the induction of CIA and may represent a powerful tool to monitor the efficacy of drug treatments in preclinical studies.
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Affiliation(s)
- Hannah E Scales
- Centre for Immunobiology, Institute of Infection, Immunity and Inflammation, College of Medical, Veterinary and Life Sciences, University of Glasgow, MD Biosciences
| | | | | | - Kirsty Ross
- Strathclyde Institute of Pharmacy & Biomedical Sciences, University of Strathclyde, Glasgow, UK and
| | | | - Janet C Patterson-Kane
- Centre for Immunobiology, Institute of Infection, Immunity and Inflammation, College of Medical, Veterinary and Life Sciences, University of Glasgow
| | - Iain B McInnes
- Centre for Immunobiology, Institute of Infection, Immunity and Inflammation, College of Medical, Veterinary and Life Sciences, University of Glasgow
| | - James M Brewer
- Centre for Immunobiology, Institute of Infection, Immunity and Inflammation, College of Medical, Veterinary and Life Sciences, University of Glasgow
| | - Paul Garside
- Centre for Immunobiology, Institute of Infection, Immunity and Inflammation, College of Medical, Veterinary and Life Sciences, University of Glasgow
| | - Pasquale Maffia
- Centre for Immunobiology, Institute of Infection, Immunity and Inflammation, College of Medical, Veterinary and Life Sciences, University of Glasgow, Department of Pharmacy, University of Naples Federico II, Naples, Italy
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