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Duraiyarasu M, Kumaran SS, Mayilmurugan R. Alkyl Chain Appended Fe(III) Catecholate Complex as a Dual-Modal T1 MRI-NIR Fluorescence Imaging Agent via Second Sphere Water Interactions. ACS Biomater Sci Eng 2023. [PMID: 37141045 DOI: 10.1021/acsbiomaterials.3c00203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
The C12-alkyl chain-conjugated Fe(III) catecholate complex [Fe(C12CAT)3]3-, Fe(C12CAT)3 [C12CAT = N-(3,4-dihydroxyphenethyl)dodecanamide], was synthesized and characterized, reported as a dual-modal T1-MRI and an optical imaging probe. The DFT-optimized structure of Fe(C12CAT)3 reveals a distorted octahedral coordination geometry around the high spin Fe(III) center. The formation constant (-log K) of Fe(C12CAT)3 was calculated as 45.4. The complex exhibited r1-relaxivity values of 2.31 ± 0.12 and 1.52 ± 0.06 mM-1 s-1 at 25 and 37 °C, respectively, on 1.41 T at pH 7.3 via second-sphere water interactions. The interaction of Fe(C12CAT)3 with human serum albumin showed concomitant enhancement of r1-relaxivity to 6.44 ± 0.15 mM-1 s-1. The MR phantom images are significantly brighter and directly correlate to the concentration of Fe(C12CAT)3. Adding an external fluorescent marker IR780 dye to Fe(C12CAT)3 leads to the formation of self-assembly by C12-alkyl chains. It resulted in the fluorescence quenching of the dye, and its critical aggregation concentration was calculated as 70 μM. The aggregated matrix of Fe(C12CAT)3 and IR780 dye is spherical, with an average hydrodynamic diameter of 189.5 nm. This self-assembled supramolecular system is found to be non-fluorescent and was "turn-on" under acidic pH via dissociation of aggregates. The r1-relaxivity is found to be unchanged during the matrix aggregation and disaggregation. The probe showed MRI ON and fluorescent OFF under physiological conditions and MRI ON and fluorescent ON under acidic pH. The cell viability experiments showed that the cells are 80% viable at 1 mM probe concentration. Fluorescence experiments and MR phantom images showed that Fe(C12CAT)3 is a potential dual model imaging probe to visualize the acidic pH environment of the cells.
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Affiliation(s)
- Maheshwaran Duraiyarasu
- Department of Chemistry, and Department of Bioscience & Biomedical Engineering, Indian Institute of Technology Bhilai, Raipur, Chattisgarh 492015, India
| | - S Senthil Kumaran
- Department of NMR, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110 029, India
| | - Ramasamy Mayilmurugan
- Department of Chemistry, and Department of Bioscience & Biomedical Engineering, Indian Institute of Technology Bhilai, Raipur, Chattisgarh 492015, India
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2
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Gawne PJ, Pinto SMA, Nielsen KM, Keeling GP, Pereira MM, T M de Rosales R. Microwave-assisted synthesis of [ 52Mn]Mn-porphyrins: Applications in cell and liposome radiolabelling. Nucl Med Biol 2022; 114-115:6-17. [PMID: 36088876 PMCID: PMC10236072 DOI: 10.1016/j.nucmedbio.2022.08.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 08/18/2022] [Accepted: 08/22/2022] [Indexed: 12/27/2022]
Abstract
BACKGROUND Manganese porphyrins have several therapeutic/imaging applications, including their use as radioprotectants (in clinical trials) and as paramagnetic MRI contrast agents. The affinity of porphyrins for lipid bilayers also makes them candidates for cell/liposome labelling. We hypothesised that metalation with the positron emission tomography (PET) radionuclide 52Mn (t1/2 = 5.6 d) would allow long-term in vivo biodistribution studies of Mn-porphyrins, as well as a method to label and track cells/liposomes, but methods for fast and efficient radiolabelling are lacking. RESULTS Several porphyrins were produced and radiolabelled by addition to neutralised [52Mn]MnCl2 and heating using a microwave (MW) synthesiser, and compared with non-MW heating. MW radiosynthesis allowed >95 % radiochemical yields (RCY) in just 1 h. Conversely, non-MW heating at 70 °C for 1 h resulted in low RCY (0-25 % RCY) and most porphyrins did not reach radiolabelling completion after 24 h. Formation of the 52Mn-complexes were confirmed with radio-HPLC by comparison with their non-radioactive 55Mn counterparts. Following this, several [52Mn]Mn-porphyrins were used to radiolabel liposomes resulting in 75-86 % labelling efficiency (LE). Two lead [52Mn]Mn-porphyrins were taken forward to label MDA-MB-231 cancer cells in vitro, achieving ca. 11 % LE. After 24 h, 32-45 % of the [52Mn]Mn-porphyrins was retained in cells. CONCLUSIONS In contrast to standard methods, MW heating allows the fast synthesis of [52Mn]Mn-porphyrins with >95 % radiochemical yields that avoid purification. [52Mn]Mn-porphyrins also show promising cell/liposome labelling properties. Our reported technique can potentially be exploited for the in vivo imaging of Mn-porphyrin therapeutics, as well as for the accurate in vivo quantification of Mn-porphyrin MRI agents.
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Affiliation(s)
- Peter J Gawne
- School of Biomedical Engineering and Imaging Sciences, King's College London, St Thomas' Hospital, London, UK
| | - Sara M A Pinto
- Department of Chemistry, University of Coimbra, 3004-535 Coimbra, Portugal
| | - Karin M Nielsen
- School of Biomedical Engineering and Imaging Sciences, King's College London, St Thomas' Hospital, London, UK
| | - George P Keeling
- School of Biomedical Engineering and Imaging Sciences, King's College London, St Thomas' Hospital, London, UK
| | - Mariette M Pereira
- Department of Chemistry, University of Coimbra, 3004-535 Coimbra, Portugal
| | - Rafael T M de Rosales
- School of Biomedical Engineering and Imaging Sciences, King's College London, St Thomas' Hospital, London, UK.
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Zheng R, Guo J, Cai X, Bin L, Lu C, Singh A, Trivedi M, Kumar A, Liu J. Manganese complexes and manganese-based metal-organic frameworks as contrast agents in MRI and chemotherapeutics agents: Applications and prospects. Colloids Surf B Biointerfaces 2022; 213:112432. [PMID: 35259704 DOI: 10.1016/j.colsurfb.2022.112432] [Citation(s) in RCA: 40] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 02/17/2022] [Accepted: 02/27/2022] [Indexed: 12/20/2022]
Abstract
Manganese-based Metal-organic Frameworks (Mn-MOFs) represents a unique sub-class of MOFs with low toxicity, oxidative ability, and biocompatibility, which plays vital role in the application of this class of MOFs in medical field. Mn-MOFs show great potential in biomedical applications, and has been extensively studied as compared to other MOFs in transition metal series. They are important in medical applications because Mn(II) possess large electron spin number and longer electron relaxation time. They display fast water exchange rate and could be employed as a potential MRI contrast agent because of their strong targeting ability. Manganese complexes with different ligands also display prospective applications in area such as carrier for drug targeting in anti-tumor and antimicrobial therapy. In the review presented herewith, the application of Mn-based complexes and Mn-MOFs have been emphasized in the area such as imaging viz. MRI, multimodal imaging, antitumor activities such as chemodynamic therapy, photodynamic therapy, sonodynamic therapy and antimicrobial applications. Also, how rational designing and syntheses of targeted Mn-based complexes and Mn-MOFs can engender desired applications.
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Affiliation(s)
- Rouqiao Zheng
- The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, China
| | - Junru Guo
- The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, China
| | - Xinyi Cai
- The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, China
| | - Lianjie Bin
- Department of General Surgery, Dongguan People's Hospital, Wanjiang District, Dongguan 523000, China.
| | - Chengyu Lu
- The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, China
| | - Amita Singh
- Department of Chemistry, Dr. Ram Manohar Lohiya Awadh University, Ayodhya, India
| | - Manoj Trivedi
- Department of Chemistry, Sri Venkateswara College, University of Delhi, New Delhi 110021, India
| | - Abhinav Kumar
- Department of Chemistry, Faculty of Science, University of Lucknow, Lucknow 226007, India.
| | - Jianqiang Liu
- The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, China.
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4
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Geraldes CF, Castro MMC, Peters JA. Mn(III) porphyrins as potential MRI contrast agents for diagnosis and MRI-guided therapy. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.214069] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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5
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Liu J, Cabral H, Song B, Aoki I, Chen Z, Nishiyama N, Huang Y, Kataoka K, Mi P. Nanoprobe-Based Magnetic Resonance Imaging of Hypoxia Predicts Responses to Radiotherapy, Immunotherapy, and Sensitizing Treatments in Pancreatic Tumors. ACS NANO 2021; 15:13526-13538. [PMID: 34355882 DOI: 10.1021/acsnano.1c04263] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Accurate diagnosis of tumors and predicting the therapeutic responses are highly demanded in the clinic to improve the treatment efficacy and survival rates. Since hypoxia develops in the progression of tumors and inversely correlates with prognosis and promotes resistance to radiotherapies and immunotherapies, it is a potential marker for therapeutic prediction. Therefore, effective discrimination of tumor hypoxia for predicting therapeutic outcomes is critical. Here, a magnetic resonance imaging (MRI)-based diagnosis strategy using contrast-amplifying nanoprobes that sense tumor acidosis and real-time observation of hypoxic conditions in tumors has been developed, aiming at accurate detection of pancreatic tumors and prediction of therapeutic effects. Our approach selectively probed xenograft, allograft, and transgenic spontaneous models of intractable pancreatic cancer, which lacks standardized predictive markers to identify patients who benefit most from treatments, and effectively discriminated the intratumoral hypoxia levels. By stratification of pancreatic tumors based on quantitative MR imaging of hypoxia, it enabled prediction of the responses to radiotherapy and immune checkpoint inhibitors. Moreover, the nanoprobe-based MRI could monitor hypoxia reduction by tumor normalization treatments, which permits visualizing pancreatic tumors that will respond to immune checkpoint blockade therapy, enhancing the response rate. The results demonstrate the potential of our strategy for accurate tumor diagnosis, patient stratification, and effective therapy.
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Affiliation(s)
- Jing Liu
- Department of Radiology, Center for Medical Imaging, and State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, No. 17, South Renmin Road, Chengdu 610041, China
| | - Horacio Cabral
- Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Bin Song
- Department of Radiology, Center for Medical Imaging, and State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, No. 17, South Renmin Road, Chengdu 610041, China
| | - Ichio Aoki
- National Institute of Radiological Sciences, Japan Agency for Quantum and Radiological Science and Technology, Anagawa 4-9-1,
Inage, Chiba 263-8555, Japan
| | - Zhouyun Chen
- Department of Radiology, Center for Medical Imaging, and State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, No. 17, South Renmin Road, Chengdu 610041, China
| | - Nobuhiro Nishiyama
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, R1-11, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
| | - Yuan Huang
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy, Sichuan University, No. 17, South Renmin Road, Chengdu 610041, China
| | - Kazunori Kataoka
- Innovation Center of Nanomedicine (iCONM), Kawasaki Institute of Industrial Promotion, 3-25-14 Tonomachi, Kawasaki-ku, Kawasaki 210-0821, Japan
- Institute for Future Initiatives, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Peng Mi
- Department of Radiology, Center for Medical Imaging, and State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, No. 17, South Renmin Road, Chengdu 610041, China
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6
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Tran HP, Jiang Y, Nguyen PH, Kim JJ, Yang SG. Retinoic acid-conjugated chitosan/manganese porphyrin ionic-complex nanoparticles for improved T 1 contrast MR imaging of hepatic fibrosis. J Biomed Mater Res B Appl Biomater 2021; 110:382-391. [PMID: 34309195 DOI: 10.1002/jbm.b.34914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 05/21/2021] [Accepted: 06/27/2021] [Indexed: 11/09/2022]
Abstract
Noninvasive and precise diagnosis of hepatic fibrosis is very important for the preventive therapeutic regimen of hepatic cirrhosis and cancer. In this study, we fabricated T1 contrast Mn-porphyrin (MnTPPS4 )/retinoic acid-chitosan ionic-complex nanoparticles (MRC NPs). The functional properties of MRC NPs were evaluated via transmission electron microscopy (TEM) imaging, release study, cytotoxicity assay, hepatocyte-specific uptake assay, and magnetic resonance (MR) imaging study. TEM images confirmed the typical structure of an ionic-complex NPs with around 100-200 nm of diameter. MnTPPS4 is released from MRC NPs for up to 24 hr in controlled pattern which implies that more reliable and convenient hepatic MR imaging is possible using of MRC NPs in clinical practice. Hepatocytes uptake assay proved retinoic acid-specific targeting of MRC NPs. The same results were observed in animal pharmacokinetic studies. In vitro MR phantom study, MRC NPs showed an increased T1 relaxivity (r1 = 6.772 mM-1 s-1 ) in comparison with 3.242 mM-1 s-1 of MnTPPS4 . The result was confirmed again in vivo MR imaging studies. Taken together, MRC NPs displayed a potential for noninvasive diagnostic T1 MR imaging of hepatic fibrosis with improved target specificity and prolonged MR imaging time window.
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Affiliation(s)
- Hoa Phuong Tran
- Department of Biomedical Science, BK21 FOUR Program in Biomedical Science and Engineering, Inha University College of Medicine, Incheon, South Korea.,Inha Institute of Aerospace Medicine, Inha University College of Medicine, Incheon, South Korea
| | - Yixin Jiang
- Department of Biomedical Science, BK21 FOUR Program in Biomedical Science and Engineering, Inha University College of Medicine, Incheon, South Korea.,Inha Institute of Aerospace Medicine, Inha University College of Medicine, Incheon, South Korea
| | - Phuong Hong Nguyen
- Department of Biomedical Science, BK21 FOUR Program in Biomedical Science and Engineering, Inha University College of Medicine, Incheon, South Korea.,Inha Institute of Aerospace Medicine, Inha University College of Medicine, Incheon, South Korea.,Institute of Research and Development, Duy Tan University, Da Nang, Vietnam
| | - Jung Joo Kim
- Department of Biomedical Science, BK21 FOUR Program in Biomedical Science and Engineering, Inha University College of Medicine, Incheon, South Korea
| | - Su-Geun Yang
- Department of Biomedical Science, BK21 FOUR Program in Biomedical Science and Engineering, Inha University College of Medicine, Incheon, South Korea.,Inha Institute of Aerospace Medicine, Inha University College of Medicine, Incheon, South Korea
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7
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Light-free Generation of Singlet Oxygen through Manganese-Thiophene Nanosystems for pH-Responsive Chemiluminescence Imaging and Tumor Therapy. Chem 2020. [DOI: 10.1016/j.chempr.2020.06.024] [Citation(s) in RCA: 69] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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8
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Barandov A, Ghosh S, Li N, Bartelle BB, Daher JI, Pegis ML, Collins H, Jasanoff A. Molecular Magnetic Resonance Imaging of Nitric Oxide in Biological Systems. ACS Sens 2020; 5:1674-1682. [PMID: 32436387 DOI: 10.1021/acssensors.0c00322] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Detection of nitric oxide (NO) in biological systems is challenging due to both physicochemical properties of NO and limitations of current imaging modalities and probes. Magnetic resonance imaging (MRI) could be applied for studying NO in living tissue with high spatiotemporal resolution, but there is still a need for chemical agents that effectively sensitize MRI to biological NO production. To develop a suitable probe, we studied the interactions between NO and a library of manganese complexes with various oxidation states and molecular structures. Among this set, the manganese(III) complex with N,N'-(1,2-phenylene)bis(5-fluoro-2-hydroxybenzamide) showed favorable changes in longitudinal relaxivity upon addition of NO-releasing chemicals in vitro while also maintaining selectivity against other biologically relevant reactive nitrogen and oxygen species, making it a suitable NO-responsive contrast agent for T1-weighted MRI. When loaded with this compound, cells ectopically expressing nitric oxide synthase (NOS) isoforms showed MRI signal decreases of over 20% compared to control cells and were also responsive to NOS inhibition or calcium-dependent activation. The sensor could also detect endogenous NOS activity in antigen-stimulated macrophages and in a rat model of neuroinflammation in vivo. Given the key role of NO and associated reactive nitrogen species in numerous physiological and pathological processes, MRI approaches based on the new probe could be broadly beneficial for studies of NO-related signaling in living subjects.
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Affiliation(s)
- Ali Barandov
- Department of Biological Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue Rm. 16-561, Cambridge, Massachusetts 02139, United States
| | - Souparno Ghosh
- Department of Biological Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue Rm. 16-561, Cambridge, Massachusetts 02139, United States
| | - Nan Li
- Department of Biological Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue Rm. 16-561, Cambridge, Massachusetts 02139, United States
| | - Benjamin B. Bartelle
- Department of Biological Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue Rm. 16-561, Cambridge, Massachusetts 02139, United States
| | - Jade I. Daher
- Department of Biological Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue Rm. 16-561, Cambridge, Massachusetts 02139, United States
| | - Michael L. Pegis
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue Rm. 16-561, Cambridge, Massachusetts 02139, United States
| | - Hannah Collins
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue Rm. 16-561, Cambridge, Massachusetts 02139, United States
| | - Alan Jasanoff
- Department of Biological Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue Rm. 16-561, Cambridge, Massachusetts 02139, United States
- Department of Brain & Cognitive Sciences, Massachusetts Institute of Technology, 77 Massachusetts Avenue Rm. 16-561, Cambridge, Massachusetts 02139, United States
- Department of Nuclear Science & Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue Rm. 16-561, Cambridge, Massachusetts 02139, United States
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9
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Korunur S, Zengin B, Yilmaz A. Investigation of relaxation times in 5-fluorouracil and human serum albumin mixtures. TURKISH JOURNAL OF BIOCHEMISTRY-TURK BIYOKIMYA DERGISI 2019. [DOI: 10.1515/tjb-2017-0363] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Background
Human serum albumin (HSA) is often selected as a subject of any study because albumin is the most abundant protein in human blood plasma. NMR is recognized as a valuable method to determine the structure of proteins-ligand and protein-drug complexes.
Objective – Aim of the study
In this study, protein drug interactions were investigated using 5-Fluorouracil anti-cancer drug and human serum albumin protein.
Materials and methods
In this context 400 MHz NMR spectrometry was used and NMR relaxation rates in drug-albumin complex were investigated with respect to increase albumin concentration and increase in 5-Fluorouracil (5-FU)-albumin solution temperature.
Results
The results of this study indicated that 5-FU had a weak association with albumin, and it easily dissociated from the protein to which it was attached.
Conclusion
The obtained results also gave us useful information about molecular dynamics of drug-albumin interactions.
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10
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Chaves OA, Jesus CSH, Henriques ES, Brito RMM, Serpa C. In situ ultra-fast heat deposition does not perturb the structure of serum albumin. Photochem Photobiol Sci 2018; 15:1524-1535. [PMID: 27841431 DOI: 10.1039/c6pp00209a] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
MnTPPS is a metallic water soluble porphyrin with high potential to be used as a contrast agent in photoacoustic tomography. In order to fully understand the interaction between MnTPPS and serum albumin and to investigate the effect of the light induced fast in situ heat deposition by MnTPPS in the protein, we performed several experimental studies using fluorescence and circular dichroism spectroscopies, as well as photoacoustic calorimetry. To identify the possible binding site(s) of the metalloporphyrin in serum albumin and to help interpret the spectroscopic results, a molecular docking exercise was also carried out. The fluorescence data indicate a 1 : 1 stoichiometry for the complex BSA : MnTPPS. The molecular docking results suggest one binding site at the subdomain IB of albumin, where Trp-134 is found, as the main binding site for MnTPPS. The CD data indicate no significant conformational changes of the BSA secondary structure upon MnTPPS binding and even after several minutes of laser excitation of MnTPPS. TR-PAC results show that the in situ heat deposition from MnTPPS does not cause any significant transient conformational change to the BSA structure. In conclusion, this work demonstrates that MnTPPS, in addition to the necessary physical and chemical properties to be used as a contrast agent in photoacoustic tomography, can be effectively carried by albumin and that in situ heat release following light absorption does not cause any significant damage to the protein structure.
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Affiliation(s)
- Otávio A Chaves
- ICE, Chemistry Department, Universidade Federal Rural do Rio de Janeiro, 23890-000, Seropédica-RJ, Brazil and CQC, Chemistry Department, University of Coimbra, 3004-535, Coimbra, Portugal.
| | - Catarina S H Jesus
- CQC, Chemistry Department, University of Coimbra, 3004-535, Coimbra, Portugal.
| | - Elsa S Henriques
- Center for Neuroscience and Cell Biology, University of Coimbra, 3004-535, Coimbra, Portugal
| | - Rui M M Brito
- CQC, Chemistry Department, University of Coimbra, 3004-535, Coimbra, Portugal.
| | - Carlos Serpa
- CQC, Chemistry Department, University of Coimbra, 3004-535, Coimbra, Portugal.
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11
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Jiménez HR, Arbona M. Spectroscopic studies of water-soluble superstructured iron(III) porphyrin. Interaction with the bovine serum albumin protein. J COORD CHEM 2018. [DOI: 10.1080/00958972.2018.1434624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Hermas R. Jiménez
- Facultad de Química, Departamento de Química Inorgánica, Universitat de València, Valencia, Spain
| | - María Arbona
- Conselleria de Cultura, Educació i Ciència, Generalitat Valenciana, Valencia, Spain
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12
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Bolzonello L, Albertini M, Collini E, Di Valentin M. Delocalized triplet state in porphyrin J-aggregates revealed by EPR spectroscopy. Phys Chem Chem Phys 2018; 19:27173-27177. [PMID: 28991960 DOI: 10.1039/c7cp02968c] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
In this work, the electronic structure of the triplet state of self-assembled J-aggregates of tetrakis(4-sulfonatophenyl)porphyrin (TPPS) has been characterized by means of time-resolved electron paramagnetic resonance spectroscopy. Several insights into the triplet properties of the aggregate have been gained through comparison with the corresponding monomeric unit in both free base and acidified forms. Molecular distortions in the monomeric acidified TPPS cause variation in its zero-field splitting parameters and a redirection of triplet spin sublevel activity. The aggregation process does not alter the mechanism of triplet state population compared to the acidified monomer but it is accompanied by a further reduction in the zero-field splitting parameter D, which is possibly indicative of the formation of a delocalized triplet state species. The detection of a long-lived spin-polarized radical species also proves polaron generation and movement to a trap site in the J-aggregates.
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Affiliation(s)
- Luca Bolzonello
- Department of Chemical Sciences, University of Padova, Via Marzolo 1, 35131 Padova, Italy.
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13
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Metal coordinated pyrrole-based macrocycles as contrast agents for magnetic resonance imaging technologies: Synthesis and applications. Coord Chem Rev 2017. [DOI: 10.1016/j.ccr.2016.11.011] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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14
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Trace Detection of Metalloporphyrin-Based Coordination Polymer Particles via Modified Surface-Enhanced Raman Scattering Assisted by Surface Metallization. Int J Anal Chem 2017; 2016:6394858. [PMID: 28115934 PMCID: PMC5220509 DOI: 10.1155/2016/6394858] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2016] [Revised: 11/21/2016] [Accepted: 12/05/2016] [Indexed: 11/17/2022] Open
Abstract
This study proposed a facile method to detect metalloporphyrin-based coordination polymer particles (Z-CPPs) in aqueous solution by modified surface-enhanced Raman scattering (SERS). The SERS-active particles are photodeposited on the surface of Z-CPPs, offering an enhanced Raman signal for the trace detection of Z-CPPs.
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15
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Mi P, Wang F, Nishiyama N, Cabral H. Molecular Cancer Imaging with Polymeric Nanoassemblies: From Tumor Detection to Theranostics. Macromol Biosci 2016; 17. [PMID: 27739631 DOI: 10.1002/mabi.201600305] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Revised: 09/06/2016] [Indexed: 02/05/2023]
Affiliation(s)
- Peng Mi
- State Key Laboratory of Biotherapy and Cancer Center and Department of Cardiovascular Surgery; West China Hospital; Sichuan University and Collaborative Innovation Center for Biotherapy; Chengdu 610041 P. R. China
| | - Fang Wang
- State Key Laboratory of Biotherapy and Cancer Center and Department of Cardiovascular Surgery; West China Hospital; Sichuan University and Collaborative Innovation Center for Biotherapy; Chengdu 610041 P. R. China
| | - Nobuhiro Nishiyama
- Laboratory for Chemistry and Life Science; Institute of Innovative Research; Tokyo Institute of Technology; R1-11, 4259 Nagatsuta Midori-ku, Yokohama 226-8503 Japan
| | - Horacio Cabral
- Department of Bioengineering; Graduate School of Engineering; The University of Tokyo; 7-3-1 Hongo Bunkyo-ku Tokyo 113-8656 Japan
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16
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Mi P, Kokuryo D, Cabral H, Wu H, Terada Y, Saga T, Aoki I, Nishiyama N, Kataoka K. A pH-activatable nanoparticle with signal-amplification capabilities for non-invasive imaging of tumour malignancy. NATURE NANOTECHNOLOGY 2016; 11:724-30. [PMID: 27183055 DOI: 10.1038/nnano.2016.72] [Citation(s) in RCA: 339] [Impact Index Per Article: 42.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2015] [Accepted: 04/05/2016] [Indexed: 05/20/2023]
Abstract
Engineered nanoparticles that respond to pathophysiological parameters, such as pH or redox potential, have been developed as contrast agents for the magnetic resonance imaging (MRI) of tumours. However, beyond anatomic assessment, contrast agents that can sense these pathological parameters and rapidly amplify their magnetic resonance signals are desirable because they could potentially be used to monitor the biological processes of tumours and improve cancer diagnosis. Here, we report an MRI contrast agent that rapidly amplifies magnetic resonance signals in response to pH. We confined Mn(2+) within pH-sensitive calcium phosphate (CaP) nanoparticles comprising a poly(ethylene glycol) shell. At a low pH, such as in solid tumours, the CaP disintegrates and releases Mn(2+) ions. Binding to proteins increases the relaxivity of Mn(2+) and enhances the contrast. We show that these nanoparticles could rapidly and selectively brighten solid tumours, identify hypoxic regions within the tumour mass and detect invisible millimetre-sized metastatic tumours in the liver.
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Affiliation(s)
- Peng Mi
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, R1-11, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
- Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- Innovation Center of Nanomedicine (iCONM), Kawasaki Institute of Industry Promotion, 3-25-14 Tonomachi, Kawasaki-ku, Kawasaki 210-0821, Japan
| | - Daisuke Kokuryo
- National Institute of Radiological Sciences, Japan Agency for Quantum and Radiological Science and Technology, Anagawa 4-9-1, Inage, Chiba 263-8555, Japan
| | - Horacio Cabral
- Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Hailiang Wu
- Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Yasuko Terada
- SPring 8, JASRI, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan
| | - Tsuneo Saga
- National Institute of Radiological Sciences, Japan Agency for Quantum and Radiological Science and Technology, Anagawa 4-9-1, Inage, Chiba 263-8555, Japan
| | - Ichio Aoki
- National Institute of Radiological Sciences, Japan Agency for Quantum and Radiological Science and Technology, Anagawa 4-9-1, Inage, Chiba 263-8555, Japan
| | - Nobuhiro Nishiyama
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, R1-11, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
- Innovation Center of Nanomedicine (iCONM), Kawasaki Institute of Industry Promotion, 3-25-14 Tonomachi, Kawasaki-ku, Kawasaki 210-0821, Japan
| | - Kazunori Kataoka
- Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- Innovation Center of Nanomedicine (iCONM), Kawasaki Institute of Industry Promotion, 3-25-14 Tonomachi, Kawasaki-ku, Kawasaki 210-0821, Japan
- Department of Materials Engineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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17
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Sun Y, Yoo B. Morphological Transformation Reactions of Photocatalytic Metalloporphyrin-Containing Coordination Polymer Particles from Seed Structures. Chemistry 2015; 4:438-42. [PMID: 26478836 PMCID: PMC4603402 DOI: 10.1002/open.201500076] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Indexed: 11/11/2022]
Abstract
Coordination polymer particles have attracted a great deal of attention due to their characteristic properties and diverse applications in the fields of gas storage, catalysis, optics, sensing, electronics, photochemistry, and biology. Herein, we investigated shape transformation reactions of zinc 5, 10, 15, 20-tetra(4-pyridyl)-21 H, 23 H-porphine (ZnTPyP)-containing coordination polymer particles (ZnTPyP-CPPs) from seed structures by delicately controlling the Gibbs energy of the self-assembly system. We obtained a morphological transformation from 1 D short nanorods to 1 D long nanorods and 3 D nano-octahedral structures, and from 3 D nano-octahedral structures to 1 D nanorod structures. We illustrated a new method to design and synthesize metalloporphyrin-containing CPPs in a controllable manner. Furthermore, photocatalytic properties of ZnTPyP-CPPs were tested, showing good catalytic abilities towards the photodegradation of methylene blue (MB) under visible light illumination.
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Affiliation(s)
- Yu Sun
- Department of Materials Engineering, Hanyang Univesity Ansan, Gyeonggi-do, 426-791, Republic of Korea
| | - Bongyoung Yoo
- Department of Materials Engineering, Hanyang Univesity Ansan, Gyeonggi-do, 426-791, Republic of Korea
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18
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Sun Y, Li X, Caravella A, Gao R. Controlled Formation of Fluorescent Metalloporphyrin-Containing Coordination Polymer Particles from Seed Structures by Designed Shape-Transformation Reactions. Chemistry 2015; 21:6682-5. [DOI: 10.1002/chem.201406532] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Indexed: 11/11/2022]
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19
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Sun Y, Yoo B. Designed two-step morphological transformation: a new strategy to synthesize uniform metalloporphyrin-containing coordination polymer particles. NEW J CHEM 2015. [DOI: 10.1039/c5nj00305a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Uniform metalloporphyrin-containing coordination polymer particles were synthesized from seed structures by designed two-step morphological transformation.
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Affiliation(s)
- Yu Sun
- Department of Materials Engineering
- Hanyang University
- Ansan
- Republic of Korea
| | - Bongyoung Yoo
- Department of Materials Engineering
- Hanyang University
- Ansan
- Republic of Korea
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20
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Sun Y, Yoo B. Monitoring the length-controlled synthesis of one-dimensional metalloporphyrin-containing coordination polymer particles and their photocatalytic properties. NEW J CHEM 2015. [DOI: 10.1039/c5nj00403a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We investigated the length-controlled synthesis of 1D metalloporphyrin coordination polymer particles and achieved the formation of nanorod and nanowire structures, which showed good photocatalytic ability towards methylene blue decomposition.
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Affiliation(s)
- Yu Sun
- Department of Materials Engineering
- Hanyang University
- Ansan
- Republic of Korea
| | - Bongyoung Yoo
- Department of Materials Engineering
- Hanyang University
- Ansan
- Republic of Korea
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21
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Jo H, Patterson V, Stoessel S, Kuan CY, Hoh J. Protoporphyrins enhance oligomerization and enzymatic activity of HtrA1 serine protease. PLoS One 2014; 9:e115362. [PMID: 25506911 PMCID: PMC4266670 DOI: 10.1371/journal.pone.0115362] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2014] [Accepted: 11/22/2014] [Indexed: 01/31/2023] Open
Abstract
High temperature requirement protein A1 (HtrA1), a secreted serine protease of the HtrA family, is associated with a multitude of human diseases. However, the exact functions of HtrA1 in these diseases remain poorly understood. We seek to unravel the mechanisms of HtrA1 by elucidating its interactions with chemical or biological modulators. To this end, we screened a small molecule library of 500 bioactive compounds to identify those that alter the formation of extracellular HtrA1 complexes in the cell culture medium. An initial characterization of two novel hits from this screen showed that protoporphyrin IX (PPP-IX), a precursor in the heme biosynthetic pathway, and its metalloporphyrin (MPP) derivatives fostered the oligomerization of HtrA1 by binding to the protease domain. As a result of the interaction with MPPs, the proteolytic activity of HtrA1 against Fibulin-5, a specific HtrA1 substrate in age-related macular degeneration (AMD), was increased. This physical interaction could be abolished by the missense mutations of HtrA1 found in patients with cerebral autosomal recessive arteriopathy with subcortical infarcts and leukoencephalopathy (CARASIL). Furthermore, knockdown of HtrA1 attenuated apoptosis induced by PPP-IX. These results suggest that PPP-IX, or its derivatives, and HtrA1 may function as co-factors whereby porphyrins enhance oligomerization and the protease activity of HtrA1, while active HtrA1 elevates the pro-apoptotic actions of porphyrin derivatives. Further analysis of this interplay may shed insights into the pathogenesis of diseases such as AMD, CARASIL and protoporphyria, as well as effective therapeutic development.
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Affiliation(s)
- Hakryul Jo
- Department of Environmental Health Science, Yale University School of Public Health, New Haven, Connecticut, United States of America
- Department of Ophthalmology and Visual Sciences, Yale University School of Medicine, New Haven, Connecticut, United States of America
| | - Victoria Patterson
- Department of Environmental Health Science, Yale University School of Public Health, New Haven, Connecticut, United States of America
- Department of Ophthalmology and Visual Sciences, Yale University School of Medicine, New Haven, Connecticut, United States of America
| | - Sean Stoessel
- Department of Environmental Health Science, Yale University School of Public Health, New Haven, Connecticut, United States of America
- Department of Ophthalmology and Visual Sciences, Yale University School of Medicine, New Haven, Connecticut, United States of America
| | - Chia-Yi Kuan
- Department of Pediatrics, Emory University School of Medicine and Children’s Healthcare of Atlanta, Atlanta, Georgia, United States of America
| | - Josephine Hoh
- Department of Environmental Health Science, Yale University School of Public Health, New Haven, Connecticut, United States of America
- Department of Ophthalmology and Visual Sciences, Yale University School of Medicine, New Haven, Connecticut, United States of America
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22
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Hitomi Y, Ekawa T, Kodera M. Water Proton Relaxivity, Superoxide Dismutase-like Activity, and Cytotoxicity of a Manganese(III) Porphyrin Having Four Poly(ethylene glycol) Tails. CHEM LETT 2014. [DOI: 10.1246/cl.140029] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Yutaka Hitomi
- Department of Applied Chemistry, Graduate School of Science and Engineering, Doshisha University
| | - Tomoyuki Ekawa
- Department of Applied Chemistry, Graduate School of Science and Engineering, Doshisha University
| | - Masahito Kodera
- Department of Applied Chemistry, Graduate School of Science and Engineering, Doshisha University
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23
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Sun Y, Yoo B. Homogenous four-petal flower structure formation from metalloporphyrin self-assembly and its reversible transformation into an octahedron structure. CrystEngComm 2014. [DOI: 10.1039/c4ce01262c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
For the first time, a uniform four-petal flower structure has been fabricated and its reversible transformation to an octahedron structure has been discovered.
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Affiliation(s)
- Yu Sun
- Department of Materials Engineering
- Hanyang University
- Ansan, Republic of Korea
| | - Bongyoung Yoo
- Department of Materials Engineering
- Hanyang University
- Ansan, Republic of Korea
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Hao Y, Moriya A, Ohmukai Y, Matsuyama H, Maruyama T. Effect of metal ions on the protein fouling of hollow-fiber ultrafiltration membranes. Sep Purif Technol 2013. [DOI: 10.1016/j.seppur.2013.03.037] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Yu M, Beyers RJ, Gorden JD, Cross JN, Goldsmith CR. A Magnetic Resonance Imaging Contrast Agent Capable of Detecting Hydrogen Peroxide. Inorg Chem 2012; 51:9153-5. [DOI: 10.1021/ic3012603] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Meng Yu
- Department of Chemistry
and Biochemistry, Auburn University, Auburn, Alabama 36849, United States
| | - Ronald J. Beyers
- Auburn University Magnetic Resonance Imaging Research Center, Auburn,
Alabama 36849, United States
| | - John D. Gorden
- Department of Chemistry
and Biochemistry, Auburn University, Auburn, Alabama 36849, United States
| | - Justin N. Cross
- Department of Chemistry
and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Christian R. Goldsmith
- Department of Chemistry
and Biochemistry, Auburn University, Auburn, Alabama 36849, United States
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26
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Kazemi SY, Abedirad SM. Effect of human and bovine serum albumin on kinetic chemiluminescence of Mn (III)-Tetrakis (4-sulfonatophenyl) porphyrin-luminol-hydrogen peroxide system. ScientificWorldJournal 2012; 2012:913412. [PMID: 22645466 PMCID: PMC3356729 DOI: 10.1100/2012/913412] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2011] [Accepted: 12/22/2011] [Indexed: 12/02/2022] Open
Abstract
The present work deals with an attempt to study the effect of human and bovine serum albumin on kinetic parameters of chemiluminescence of luminol-hydrogen peroxide system catalyzed by manganese tetrasulfonatophenyl porphyrin (MnTSPP). The investigated parameters involved pseudo-first-order rise and fall rate constant for the chemiluminescence burst, maximum level intensity, time to reach maximum intensity, total light yield, and values of the intensity at maximum CL which were evaluated by nonlinear least square program KINFIT. Because of interaction of metalloporphyrin with proteins, the CL parameters are drastically affected. The systems resulted in Stern-Volmer plots with kQ values of 3.17 × 105 and 3.7 × 105 M−1 in the quencher concentration range of 1.5 × 10−6 to 1.5 × 10−5 M for human serum albumin (HSA) and bovine serum albumin (BSA), respectively.
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Affiliation(s)
- Sayed Yahya Kazemi
- Department of Basic Sciences, Sari Agricultural Sciences and Natural Resources University, PO Box 578, Sari 4818168984, Iran
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27
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Zhang Z, Guo QN, Lu YG, Jia T, Yan K, Li ZY. Interaction between novel porphyrin-dextran nanoparticles and human serum albumin. J PORPHYR PHTHALOCYA 2012. [DOI: 10.1142/s1088424610001969] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
A novel porphyrin-dextran coated Fe3O4 nanoparticle (5) was designed and synthesized. The structure of 5 was confirmed by IR, UV-vis and inductively coupled plasma atomic emission spectrometry, and dynamic laser scattering (DLS); magnetic property was measured by a vibrating sample magnetometer (VSM). The interaction between compound 5 and human serum albumin (HSA) was investigated through UV-vis absorbance spectra and fluorospectrophotometer, compared with the 5-(4-aminophenyl)-10,15,20-tris-(4-sulfonatophenyl)porphyrin, trisodium salt (3). The results showed compound 5 containing porphyrin moiety and 3 could interact with HSA. The quenching constant (Ksv) was 4.739 × 105 M-1 for 3, and 2.846 × 105 M-1 for 5; the apparent affinity binding constant (KA) was 8.562 × 103 M-1 for 3, and 4.978 × 104 M-1 for 5.
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Affiliation(s)
- Zhi Zhang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P.R. China
| | - Qian-ni Guo
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P.R. China
| | - Yun-guo Lu
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P.R. China
| | - Tao Jia
- College of Pharmacy, Wuhan University, Wuhan 430072, P.R. China
| | - Kun Yan
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P.R. China
| | - Zao-ying Li
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P.R. China
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28
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Noordin S, Winalski CS, Shortkroff S, Mulkern RV. Factors affecting paramagnetic contrast enhancement in synovial fluid: effects of electrolytes, protein concentrations, and temperature on water proton relaxivities from Mn ions and Gd chelated contrast agents. Osteoarthritis Cartilage 2010; 18:964-70. [PMID: 20417287 DOI: 10.1016/j.joca.2010.03.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2009] [Revised: 01/29/2010] [Accepted: 03/26/2010] [Indexed: 02/02/2023]
Abstract
INTRODUCTION Protein and electrolyte concentration of synovial fluid (SF) varies with the type of underlying arthritis. These characteristics can be utilized by magnetic resonance technology to provide a potentially significant diagnostic modality through quantitative assessments of inherent water relaxation rates and their response to contrast agents. METHODS We evaluated the effect of a classic "in vitro" contrast agent, the Mn ion, and a common "in vivo" gadolinium based contrast agent, gadopentetate dimeglumine, on the water relaxation times of solutions with biochemical compositions simulating different types of arthritis along with similar studies of SF obtained from patients. RESULTS The results demonstrate how protein and electrolyte concentrations play a significant role in the response of water relaxation to the Mn ion but much less so to chelated gadolinium contrast agents used clinically. DISCUSSION A major challenge remains to develop paramagnetic agents with less toxicity than the Mn ion but with similar properties that can then serve as a tool to determine protein concentrations through imaging and thereby assist in the diagnosis of inflammatory arthrides and evaluation of therapeutic regimens.
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Affiliation(s)
- S Noordin
- Department of Orthopaedic Surgery, Brigham & Women's Hospital, Harvard Medical School, Boston, MA, USA
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29
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Giovannetti R, Alibabaei L, Petetta L. Aggregation behaviour of a tetracarboxylic porphyrin in aqueous solution. J Photochem Photobiol A Chem 2010. [DOI: 10.1016/j.jphotochem.2010.02.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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30
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Budimir A, Kalmár J, Fábián I, Lente G, Bányai I, Batinić-Haberle I, Birus M. Water exchange rates of water-soluble manganese(III) porphyrins of therapeutical potential. Dalton Trans 2010; 39:4405-10. [PMID: 20422097 DOI: 10.1039/b926522h] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The activation parameters and the rate constants of the water-exchange reactions of Mn(III)TE-2-PyP(5+) (meso-tetrakis(N-ethylpyridinium-2-yl)porphyrin) as cationic, Mn(III)TnHex-2-PyP(5+) (meso-tetrakis(N-n-hexylpyridinium-2-yl)porphyrin) as sterically shielded cationic, and Mn(III)TSPP(3-) (meso-tetrakis(4-sulfonatophenyl)porphyrin) as anionic manganese(iii) porphyrins were determined from the temperature dependence of (17)O NMR relaxation rates. The rate constants at 298 K were obtained as 4.12 x 10(6) s(-1), 5.73 x 10(6) s(-1), and 2.74 x 10(7) s(-1), respectively. On the basis of the determined entropies of activation, an interchange-dissociative mechanism (I(d)) was proposed for the cationic complexes (DeltaS(double dagger) = approximately 0 J mol(-1) K(-1)) whereas a limiting dissociative mechanism (D) was proposed for Mn(III)TSPP(3-) complex (DeltaS(double dagger) = +79 J mol(-1) K(-1)). The obtained water exchange rate of Mn(III)TSPP(3-) corresponded well to the previously assumed value used by Koenig et al. (S. H. Koenig, R. D. Brown and M. Spiller, Magn. Reson. Med., 1987, 4, 52-260) to simulate the (1)H NMRD curves, therefore the measured value supports the theory developed for explaining the anomalous relaxivity of Mn(III)TSPP(3-) complex. A magnitude of the obtained water-exchange rate constants further confirms the suggested inner sphere electron transfer mechanism for the reactions of the two positively charged Mn(iii) porphyrins with the various biologically important oxygen and nitrogen reactive species. Due to the high biological and clinical relevance of the reactions that occur at the metal site of the studied Mn(iii) porphyrins, the determination of water exchange rates advanced our insight into their efficacy and mechanism of action, and in turn should impact their further development for both diagnostic (imaging) and therapeutic purposes.
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Affiliation(s)
- Ana Budimir
- Faculty of Pharmacy and Biochemistry, University of Zagreb, Ante Kovacića 1, 10000, Zagreb, Croatia
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31
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Gonçalves PJ, De Boni L, Borissevitch IE, Zílio SC. Excited state dynamics of meso-tetra(sulphonatophenyl) metalloporphyrins. J Phys Chem A 2008; 112:6522-6. [PMID: 18588273 DOI: 10.1021/jp800589j] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The excited state dynamics of Zn2+, Fe3+, and Mn3+ meso-tetra(sulfonatophenyl) porphyrin complexes were investigated with a Z-scan technique at 532 nm using 70 ps and 120 fs single pulses and 200 ns pulse trains of a Q-switched and mode locked laser. We determined the characteristic interconversion and intersystem crossing times, quantum yields of the excited S1 state, and S1 --> Sn and T1 --> Tn transition cross-sections. The ground state cross-sections were obtained using UV-vis absorption spectroscopy, and a five-energy-level diagram was used to yield the photophysical parameters mentioned previously.
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Affiliation(s)
- P J Gonçalves
- Instituto de Física de São Carlos, Universidade de São Paulo, Caixa Postal 369, São Carlos, Brazil.
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32
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Makarska-Bialokoz M, Pratviel G, Radzki S. The influence of solvent polarity on spectroscopic properties of 5-[4-(5-carboxy-1-butoxy)-phenyl]-10,15,20-tris(4-N-methylpyridiniumyl)porphyrin and its complexes with Fe(III) and Mn(III) ions. J Mol Struct 2008. [DOI: 10.1016/j.molstruc.2007.05.026] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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33
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Mody TD, Sessler JL. Porphyrin- and Expanded Porphyrin-Based Diagnostic and Therapeutic Agents. ACTA ACUST UNITED AC 2007. [DOI: 10.1002/9780470511497.ch7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/25/2023]
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34
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Tauskela JS, Brunette E, Kiedrowski L, Lortie K, Hewitt M, Morley P. Unconventional neuroprotection against Ca2+ -dependent insults by metalloporphyrin catalytic antioxidants. J Neurochem 2006; 98:1324-42. [PMID: 16895586 DOI: 10.1111/j.1471-4159.2006.03973.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
We evaluated whether both inert and catalytically active metalloporphyrin antioxidants, meso-substituted with either phenyl-based or N-alkylpyridinium-based groups, suppress Ca(2+)-dependent neurotoxicity in cell culture models of relevance to cerebral ischemia. Representatives from both metalloporphyrin classes, regardless of antioxidant strength, protected cultured cortical neurons or PC-12 cultures against the Ca(2+) ionophores ionomycin or A23187, by suppressing neurotoxic Ca(2+) influx. Some metalloporphyrins suppressed excitotoxic Ca(2+) influx indirectly induced by the Ca(2+) ionophores in cortical neurons. Metalloporphyrins did not quench intracellular fluorescence, suggesting localization to the plasma membrane interface and/or interference with Ca(2+) ionophores. Metalloporphyrins suppressed ionomycin-induced Mn(2+) influx, but did not protect cortical neurons against pyrithione, a Zn(2+) ionophore. In other Ca(2+)-dependent paradigms, Ca(2+) influx via plasma membrane depolarization, but not through reversal of plasmalemmal Na(+)/Ca(2+) exchangers, was modestly suppressed by Mn(III)meso-tetrakis(4-benzoic acid)porphyrin (Mn(III)TBAP) or by an inert analog, Zn(II)TBAP. Mn(III)TBAP and Zn(II)TBAP potently protected cortical neurons against long-duration oxygen-glucose deprivation (OGD), performed in the presence of antagonists of NMDA, alpha-amino-3-hydroxy-5-methylisoxazole-4-propionate and L-type voltage-gated Ca(2+) channels, raising the possibility of an unconventional mode of blockade of transient receptor protein melastatin 7 channels by a metalloTBAP family of metalloporphyrins. The present study extends the range of Ca(2+)-dependent insults for which metalloporphyrins demonstrate unconventional neuroprotection. MetalloTBAPs appear capable of targeting an OGD temporal continuum.
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Affiliation(s)
- Joseph S Tauskela
- National Research Council, Institute for Biological Sciences, Synaptic Pathophysiology Group, Ottawa, Ontario, Canada.
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35
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Aggarwal LPF, Borissevitch IE. On the dynamics of the TPPS4 aggregation in aqueous solutions: successive formation of H and J aggregates. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2006; 63:227-33. [PMID: 15955725 DOI: 10.1016/j.saa.2005.05.009] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2005] [Revised: 05/06/2005] [Accepted: 05/10/2005] [Indexed: 05/03/2023]
Abstract
The dynamics of aggregation of meso-tetrakis (p-sulfonatofenyl) porphyrin (TPPS4) in function of its concentration, pH and ionic strength was studied by optical absorption, fluorescence and resonance light scattering (RLS) techniques. In the region of pH, where TPPS4 exists in biprotonated form, the addition of NaCl induces the TPPS4 aggregation due to the formation of the "cloud" of counter ions around the TPPS4 molecule thus reducing electrostatic repulsion between the porphyrin molecules. The formation of this "cloud" shifts the pKa value to acid region (from 5.0 in the absence of salt to 4.5 at [NaCl] = 0.4 M), reduces the TPPS4 absorption in all spectral range and quantum yield and lifetime of fluorescence (from 0.27 to 0.17 and from 4.00+/-0.04 to 3.00+/-0.03 ns in the absence of salt and in the presence of NaCl, respectively). The aggregation process involves two successive stages: initially H aggregates are formed, which in time are transformed in J ones. The existence of these two stages was confirmed by the fluorescence and RLS data. The kinetics of the formation of J aggregates is characterized by the induction time t1 and the average growth time t2, which depend on both TPPS4 and salt concentrations. The induction period t1 appears as a result of initial formation of H aggregates and their successive transformation in J ones. At very high TPPS4 concentrations, the J aggregates are united in more complex structures such as hollow cylinders or helixes.
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Affiliation(s)
- Lucimara P F Aggarwal
- Departamento de Física e Matemática, Faculdade de Filosofia Ciência e Letras de Ribeirão Preto, Universidade de São Paulo, Av. Bandeirantes 3900, CEP 14040-901, Ribeirão Preto, SP, Brazil
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Klein ATJ, Rösch F, Coenen HH, Qaim SM. Labelling of manganese-based magnetic resonance imaging (MRI) contrast agents with the positron emitter 51Mn, as exemplified by manganese-tetraphenyl-porphin-sulfonate (MnTPPS4). Appl Radiat Isot 2005; 62:711-20. [PMID: 15763477 DOI: 10.1016/j.apradiso.2004.09.009] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2004] [Revised: 09/25/2004] [Accepted: 09/27/2004] [Indexed: 10/26/2022]
Abstract
The potential tumor seeking MRI contrast agent MnTPPS(4) was labelled with the positron emitting nuclide (51)Mn in no-carrier-added (n.c.a.) form. The complex formation kinetics were investigated and the apparent rate constants were determined under pseudo-first-order conditions. The derived bimolecular rate constants gave the Arrhenius parameters E(A)=84 kJ mol(-1) and A=2 x 10(12)s(-1)M(-1). Optimum labelling conditions were derived (radiochemical yields >99% possible, effective yields about 32%). Separation and purification of n.c.a. (51)MnTPPS(4) were performed for potential human use. All impurities were <1%.
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Affiliation(s)
- A T J Klein
- Institut für Nuklearchemie, Forschungszentrum Jülich GmbH, D-52425 Jülich, Germany
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Magnetic resonance imaging contrast agents: Theory and the role of dendrimers. ACTA ACUST UNITED AC 2002. [DOI: 10.1016/s1874-5229(02)80006-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/11/2023]
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Relaxometric Investigation of Functional Group Placement on MnTPP Derivatives Supports the Role of the Molecular Electrostatic Potential Maps as a Tool to Design New Metalloporphyrins with Larger Relaxivities. Int J Mol Sci 2001. [DOI: 10.3390/i2030140] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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41
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Yushmanov VE. Aggregation of Fe(III)TPPS(4) on Biological Structures Is pH-Dependent, Suggesting Oxo-Bridging in the Aggregates. Inorg Chem 1999; 38:1713-1718. [PMID: 11670938 DOI: 10.1021/ic980377u] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Interaction of the Fe(III) derivative of tetra(4-sulfonatophenyl)porphyrin (TPPS(4)), and diamagnetic ZnTPPS(4) and metal-free TPPS(4), with the simplest models for membranes and protein reaction centers, aqueous (AM) and reversed (RM) ionic micelles, was studied by high-resolution (1)H NMR and proton magnetic relaxation measurements. AM were much more sensitive than RM to the bulky porphyrins, seemingly, because of the more restricted motion of surfactant chains in AM. TPPS(4) and its derivatives were incorporated into the AM of cationic cetyltrimethylammonium chloride (CTAC) or zwitterionic lysophosphatidylcholine (LPC) near the terminal part of their hydrocarbon chains, as evidenced by a strong upfield shift of the corresponding peaks. At a FeTPPS(4)/CTAC molar ratio greater than 0.05 and a pH > 4, FeTPPS(4) partly formed nonparamagnetic aggregates, which dissociated into monomers at pH < 4. In CTAC RM, FeTPPS(4) was predominantly aggregated, the transition to the monomer form occurring upon acidification of the water RM interior to about pH -1. No similar pH dependencies were found for ZnTPPS(4) and TPPS(4). It is supposed that charged porphyrins may interact with cellular membranes. Characteristic pH dependence of the FeTPPS(4) aggregation in micelles suggests that aggregated units are bound through a &mgr;-oxo-bridge. Similar mechanisms may be operative in other systems, such as porphyrin-protein.
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Affiliation(s)
- Victor E. Yushmanov
- Instituto de Química de São Carlos, Universidade de São Paulo, São Carlos 13560-970, SP, Brazil
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Hofmann B, Bogdanov A, Marecos E, Ebert W, Semmler W, Weissleder R. Mechanism of gadophrin-2 accumulation in tumor necrosis. J Magn Reson Imaging 1999; 9:336-41. [PMID: 10077034 DOI: 10.1002/(sici)1522-2586(199902)9:2<336::aid-jmri28>3.0.co;2-3] [Citation(s) in RCA: 45] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
The molecular mechanism by which gadophrin-2 targets necrotic tumor tissue was investigated. Biodistribution studies and magnetic resonance imaging (MRI) and histologic/autoradiographic correlation were performed in xenograft mouse models bearing human tumors (HT 29, WiDr, LX 1). Binding of gadophrin-2 to DNA, lipids, or proteins was determined by fluorescence spectrophotometry. Protein binding was determined by dialysis and gel electrophoresis. Accumulation of gadophrin-2 was low (<0.7% injected dose/g tissue at 24 hours after injection) in viable tumor but higher in necrotic tumor regions and was readily detectable by MRI. Within a given tumor, the agent preferentially localized in the periphery of necrotic areas. Within these regions gadophrin-2 was bound to interstitial albumin and not other proteins, lipids, or DNA. Tumoral accumulation of gadophrin-2 most likely occurs through its binding to plasma albumin and subsequent slow extravasation into the tumor interstitium.
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Affiliation(s)
- B Hofmann
- Center for Molecular Imaging Research, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Charlestown 02129, USA
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Gandini SC, Yushmanov VE, Perussi JR, Tabak M, Borissevitch IE. Binding of the Mn(III) complex of meso-tetrakis (4-N-methyl-pyridiniumyl) porphyrin to DNA. Effect of ionic strength. J Inorg Biochem 1999; 73:35-40. [PMID: 10212993 DOI: 10.1016/s0162-0134(98)10088-0] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Interactions of the water-soluble Mn(III) complex of meso-tetrakis (4-N-methyl-pyridiniumyl) porphyrin (Mn(III)TMPyP) with DNA in aqueous solutions at low (0.01 M) and high (0.2 M) ionic strengths have been studied by optical absorption, resonance light scattering (RLS) and 1H NMR spectroscopies. Optical absorption and RLS measurements have demonstrated that in DNA solutions at low ionic strength the Mn(III)TMPyP form aggregates, which are decomposed at DNA excess. At high ionic strength the aggregation was not observed. We explain this effect by assuming that upon increase in ionic strength, Mn(III) TMPyP dislocates from the DNA sites, which produces better conditions for the porphyrin aggregation, to sites where the aggregation is hindered. The 1H NMR data demonstrated that the aggregation observed at low ionic strength reduces the paramagnetism of Mn(III)TMPyP. This phenomenon was not observed at the high ionic strength in the absence of aggregation.
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Affiliation(s)
- S C Gandini
- Instituto de Química de São Carlos, Universidade de São Paulo, Brazil
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Mercier GA. Enhancing the relaxivity of paramagnetic coordination complexes through the optimization of the molecular electrostatic potential. Magn Reson Imaging 1998; 16:811-28. [PMID: 9811146 DOI: 10.1016/s0730-725x(98)00087-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
The low relaxivity of paramagnetic coordination complexes limits their use as contrast agents in magnetic resonance imaging (MRI). To address this problem, we study the relationship between the molecular structure of these complexes and their relaxivity. While others have investigated the vibrational modes as molecular determinants of the electronic spin relaxation time, we focus on the analysis of the molecular electrostatic potential (MEP) of the paramagnetic coordination complex. Electrostatic forces dominate the interaction between the coordination complex and water. Hence, in addition to steric forces, the molecular electrostatic potential should be a determinant of the lifetime of the water-metal link (tm), the internuclear distance between the water hydrogens and the metal (R), and the number of water molecules attached to the metal in the inner and outer spheres of coordination. We compute the molecular electrostatic potential for a series of model metalloporphyrins because their physical and biologic properties are well known, and they are putative magnetic resonance imaging contrast agents with affinity to neoplastic tissue. Replacing the sulfonato groups in MnTPPS4 with carboxylate groups in the ortho position of the phenyl rings attached to the meso carbons results in an electrostatic focusing field that should reduce R and increase tm. Similar substitutions involving polar groups, including one modeled after a well-known picket-fence porphyrin, are not strong enough to generate a focusing field. Instead, these polar groups should modulate the water-metal interactions through steric interactions. Molecular dynamic simulations show a large outer sphere of coordination around the paramagnet that extends almost three times the distance of the inner sphere of coordination.
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Affiliation(s)
- G A Mercier
- Department of Radiology, Hospital of The University of Pennsylvania, Philadelphia 19104, USA.
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New non-ionic water-soluble porphyrins: evaluation of manganese(III) polyhydroxylamide porphyrins as MRI contrast agents. Inorganica Chim Acta 1998. [DOI: 10.1016/s0020-1693(97)06110-0] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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46
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Borissevitch IE, Tominaga TT, Imasato H, Tabak M. Resonance light scattering study of aggregation of two water soluble porphyrins due to their interaction with bovine serum albumin. Anal Chim Acta 1997. [DOI: 10.1016/s0003-2670(97)00038-x] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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47
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Tominaga TT, Yushmanov VE, Borissevitch IE, Imasato H, Tabak M. Aggregation phenomena in the complexes of iron tetraphenylporphine sulfonate with bovine serum albumin. J Inorg Biochem 1997; 65:235-44. [PMID: 9046105 DOI: 10.1016/s0162-0134(96)00137-7] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Binding of Fe(III) meso-tetrakis(p-sulfonatophenyl)-porphyrin (FeTPPS4) to bovine serum albumin (BSA) was studied by UV-VIS absorption, fluorescence quenching, circular dichroism, 1H NMR, and ESR. At excess of BSA, the bound form of FeTPPS4 is a high-spin monomer exhibiting a Soret band at 417 nm, a broad NMR peak at 10.3 ppm, an ESR signal at g = 5.7-5.9, and a strong enhancement of magnetic relaxation of water protons. In the intermediate concentration range, a formation of nonparamagnetic bound aggregates of FeTPPS4 occurs (up to 10-15 molecules at pH 6.0) with a Soret band at 414 nm and NMR peaks at 7.0, 8.1, and 12.7 ppm. In the physiologic pH range, BSA binds the monomeric form of FeTPPS4 with an association constant of about 10(8) M-1, the affinity to oxo-dimers in solution being much lower. BSA itself is also subject to aggregation with an average aggregation number of 4-8 in the physiological pH range. It is assumed that aggregation phenomena may play an important role, both in the relaxation efficiency of metalloporphyrins as MRI contrast agents and in the blood transport of porphyrin drugs by albumins.
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Affiliation(s)
- T T Tominaga
- Instituto de Química de São Carlos, Universidade de São Paulo, Brazil
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