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Ha PT, Le TTH, Ung TDT, Do HD, Doan BT, Mai TTT, Pham HN, Hoang TMN, Phan KS, Bui TQ. Properties and bioeffects of magneto–near infrared nanoparticles on cancer diagnosis and treatment. NEW J CHEM 2020. [DOI: 10.1039/d0nj02848g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The developed nanosystem could be an effective cancer drug deliverer, MRI contrast enhancer and near infrared fluorescent probe.
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Affiliation(s)
- Phuong Thu Ha
- Institute of Materials Science
- Vietnam Academy of Science and Technology
- Hanoi
- Vietnam
| | - Thi Thu Huong Le
- Institute of Materials Science
- Vietnam Academy of Science and Technology
- Hanoi
- Vietnam
- Faculty of Environment, Vietnam National University of Agriculture
| | - Thi Dieu Thuy Ung
- Institute of Materials Science
- Vietnam Academy of Science and Technology
- Hanoi
- Vietnam
| | - Hai Doan Do
- Institute of Materials Science
- Vietnam Academy of Science and Technology
- Hanoi
- Vietnam
- The Unit for Chemical and Biological Technologies for Health (UTCBS) - University Paris Descartes
| | - Bich Thuy Doan
- The Unit for Chemical and Biological Technologies for Health (UTCBS) - University Paris Descartes
- Chimie ParisTech
- INSERM U1022
- CNRS UMR8258
- Paris
| | - Thi Thu Trang Mai
- Institute of Materials Science
- Vietnam Academy of Science and Technology
- Hanoi
- Vietnam
| | - Hong Nam Pham
- Institute of Materials Science
- Vietnam Academy of Science and Technology
- Hanoi
- Vietnam
| | | | - Ke Son Phan
- Institute of Materials Science
- Vietnam Academy of Science and Technology
- Hanoi
- Vietnam
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2
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Gillet B, Doan BT, Verre-Sebrie C, Fedeli O, Beloeil JC, Peres M, Barrere B, Seylaz J, Morin S, Koenig J, Sebille A. 2D NMR studies on muscle and cerebral metabolism in vivo. ACTA ACUST UNITED AC 2017. [DOI: 10.1051/jcp/1994910697] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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3
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Meme S, Calas AG, Montécot C, Richard O, Gautier H, Gefflaut T, Doan BT, Même W, Pichon J, Beloeil JC. MRI characterization of structural mouse brain changes in response to chronic exposure to the glufosinate ammonium herbicide. Toxicol Sci 2009; 111:321-30. [PMID: 19638430 DOI: 10.1093/toxsci/kfp174] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Glufosinate ammonium (GLA) is the active component of herbicides widely used in agriculture, truck farming, or public domains. GLA acts by inhibiting the plant glutamine synthetase (GlnS). It also inhibits mammalian GlnS in vitro and ex vivo. In the central nervous system this enzyme is exclusively localized in glial cells. Whereas acute neurotoxic effects of GLA are well documented, long-term effects during chronic exposure at low doses remain largely undisclosed. In the present work, C57BL/6J mice were treated intraperitoneally with 2.5, 5, and 10 mg/kg of GLA three times a week during 10 weeks. Cerebral magnetic resonance imaging (MRI) experiments were performed at high field (9.4 T) and the images were analyzed with four texture analysis (TA) methods. TA highlighted structural changes in seven brain structures after chronic GLA treatments. Changes are dose dependent and can be seen at a dose as low as 2.5 mg/kg for two areas, namely hippocampus and somatosensorial cortex. Glial fibrillary acidic protein (GFAP) expression in the same seven brain structures and GlnS activity in the hippocampus and cortex areas were also studied. The number of GFAP-positive cells is modified in six out of the seven areas examined. GlnS activity was significantly increased in the hippocampus but not in the cortex. These results indicate some kind of suffering at the cerebral level after chronic GLA treatment. Changes in TA were compared with the modification of the number of GFAP-positive astrocytes in the studied brain areas after GLA treatment. We show that the noninvasive MRI-TA is a sensitive method and we suggest that it would be a very helpful tool that can efficiently contribute to the detection of cerebral alterations in vivo during chronic exposure to xenobiotics.
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Affiliation(s)
- Sandra Meme
- Centre de Biophysique Moléculaire, CNRS UPR4301, Rue Charles Sadron, 45071 Orléans Cedex, France.
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Smirnov P, Gazeau F, Beloeil JC, Doan BT, Wilhelm C, Gillet B. Single-cell detection by gradient echo 9.4 T MRI: a parametric study. Contrast Media Mol Imaging 2007; 1:165-74. [PMID: 17193693 DOI: 10.1002/cmmi.104] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Recent studies have shown that cell migration can be monitored in vivo by magnetic resonance imaging after intracellular contrast agent incorporation. This is due to the dephasing effect on proton magnetization of the local magnetic field created by a labelled cell. Anionic iron oxide nanoparticles (AMNP) are among the most efficient and non-toxic contrast agents to be spontaneously taken up by a wide variety of cells. Here we measured the iron load and magnetization of HeLa tumour cells labelled with AMNP, as a function of the external magnetic field. High-resolution gradient echo 9.4 T MRI detected individual labelled cells, whereas spin echo sequences were poorly sensitive. We then conducted a systematic study in order to determine the gradient echo sequence parameters (echo time, cell magnetization and resolution) most suitable for in vivo identification of single cells.
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Affiliation(s)
- P Smirnov
- Laboratoire Matière et Systèmes Complexes, Université Paris 7, Denis Diderot and CNRS UMR 7057, 140, rue de Lourmel, 75015 Paris, France.
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Momken I, Lechêne P, Koulmann N, Fortin D, Mateo P, Doan BT, Hoerter J, Bigard X, Veksler V, Ventura-Clapier R. Impaired voluntary running capacity of creatine kinase-deficient mice. J Physiol 2005; 565:951-64. [PMID: 15831533 PMCID: PMC1464549 DOI: 10.1113/jphysiol.2005.086397] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
The creatine kinase system (CK) is important for energy delivery in skeletal and cardiac muscles. The two main isoforms of this enzyme, cytosolic MM-CK and mitochondrial mi-CK, are expressed in a developmental and muscle-type specific manner. Mice deficient in one or both of these isoforms are viable and fertile but exhibit profound functional, metabolic and structural muscle remodelling that primarily affects fast skeletal muscles, which show an increased contribution of oxidative metabolism to contractile function. However, the consequences of these alterations in terms of physical capabilities have not yet been characterized. Consequently, we compared the voluntary exercise capacity of 9-month-old male wild-type (WT), M-CK knockout (M-CK(-/-)), and M-CK and mi-CK double knockout (CK(-/-)) mice, using cages equipped with running wheels. Exercise performance, calculated by total distance covered and by work done during the training period, was more than 10-fold lower in CK(-/-) mice than controls, with M-CK(-/-) mice exhibiting intermediate performance. Similarly, the mean distance run per activation was lower in M-CK(-/-) and even lower in CK(-/-) mice. However, the maximal running speed (V(max)) was lower only for CK(-/-) mice. This was accompanied by severe skeletal muscle mass decrease in CK(-/-) mice, with signs of histological damage that included enlarged interstitial areas, aggregations of mononuclear cells in the interstitium, heterogeneity of myofibre size and the presence of very small fibres. No overt sign of cardiac dysfunction was observed by magnetic resonance imaging during dobutamine stimulation. These results show that metabolic failure induced by CK deficiency profoundly affects the ability of mice to engage in chronic bouts of endurance running exercise and that this decrease in performance is also associated with muscle wasting.
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Affiliation(s)
- Iman Momken
- Cellular and Molecular Cardiology, INSERM U-446, Pharmacy Faculty, Paris South University, Châtenay-Malabry, France
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Méric P, Autret G, Doan BT, Gillet B, Sébrié C, Beloeil JC. In vivo 2D magnetic resonance spectroscopy of small animals. MAGMA 2004; 17:317-38. [PMID: 15625585 DOI: 10.1007/s10334-004-0084-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2004] [Revised: 11/02/2004] [Accepted: 11/02/2004] [Indexed: 01/05/2023]
Abstract
Localized in vivo NMR spectroscopy, chemical shift imaging or multi-voxel spectroscopy are potentially useful tools in small animals that are complementary to MRI, adding biochemical information to the mainly anatomical data provided by imaging of water protons. However the contribution of such methods remains hampered by the low spectral resolution of the in vivo 1D spectra. Two-dimensional methods widely developed for in vitro studies have been proposed as suitable approaches to overcome these limitations in resolution. The different homonuclear and heteronuclear sequences adapted to in vivo studies are reviewed. Their specific contributions to the spectral resolution of spectroscopic data and their limitations for in vivo investigations are discussed. The applications to experimental models of pathological processes or pharmacological treatment in mainly brain and muscle are presented. According to their combined sensitivity, acquisition duration and spatial resolution, the heteronuclear 2D experiments, which are mainly used for 1H detected-13C spectroscopy after administration of 13C-labeled compounds, appear to be less efficient than 1H detected-13C 1D methods at high field. However, the applications of 2D proton homonuclear methods show that they remain the best tools for in vivo studies when an improved resolution is required.
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Affiliation(s)
- P Méric
- Laboratoire de RMN Biologique, ICSN-CNRS, Avenue de la Terrasse, 91198, Gif sur Yvette, France.
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Abstract
Two-year stability coefficients were computed for several measures of borderline personality disorder within a nonclinical sample (n = 65) that included individuals with significant borderline features. Overall, the stability coefficients were modest (r ranging from .28 to .62; intraclass correlations ranging from .26 to .62). Stability values for each of the self-report measures under study were higher than those for the interview-based measure of BPD features, and, in some cases, these values varied as a function of the prototypicality of the subsamples examined. Analyses conducted to identify moderator effects provided no evidence that the stability of BPD scores was moderated by change in personal distress level; however, changes in BPD self-report scores were related to changes in level of negative affectivity.
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Affiliation(s)
- T J Trull
- Department of Psychology, University of Missouri-Columbia 65211, USA
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Ducrocq C, Dendane M, Laprévote O, Serani L, Das BC, Bouchemal-Chibani N, Doan BT, Gillet B, Karim A, Carayon A, Payen D. Chemical modifications of the vasoconstrictor peptide angiotensin II by nitrogen oxides (NO, HNO2, HOONO)--evaluation by mass spectrometry. Eur J Biochem 1998; 253:146-53. [PMID: 9578472 DOI: 10.1046/j.1432-1327.1998.2530146.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Nitric oxide (NO) and angiotensin II are natural regulators of blood pressure. Under aerobic conditions, NO is transformed into its higher oxides (N2O4, NO2, NO/NO2 or N2O3) and oxoperoxonitrate (currently named peroxynitrite) by coupling with superoxide. Previous studies have shown that these reactive nitrogen species should be involved in vivo in the transformation of cysteine and tyrosine into the corresponding nitrosothiol and 3-nitrotyrosine. In the present study, attention has been focused on the relative reactivities of HNO2, peroxynitrite, and NO in the presence of dioxygen, towards the arginine and tyrosine residues of the peptide angiotensin II. Nitration of the tyrosine residue is clearly the main reaction with peroxynitrite. By contrast, besides 20% of nitration of the tyrosine residue, NO in the presence of dioxygen leads to nitrosation reactions with the arginine residue similar to those observed with HNO2 at pH 5, possibly through the intermediate N2O3 reactive species. Angiotensin II is converted for the most part to peptides having lost either a terminal amine function or the whole guanido group, leading respectively to citrulline-containing angiotensin II or to a diene derivative. Identification established mainly by tandem mass spectrometry of peptidic by-products allows us to propose a cascade of nitrosations of all the amine functions of the arginine residue. Further in vivo studies show that transformations of the arginine residue in angiotensin II do not alter its vasoconstrictive properties, whereas nitration of the tyrosine residue totally inhibits them.
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Affiliation(s)
- C Ducrocq
- Institut de Chimie des Substances Naturelles, CNRS, Gif-sur-Yvette, France.
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Abstract
The structure of two selective inhibitors, Ac-Tyr-Ile-Arg-Ile-Pro-NH2 and Ac-(4-Amino-Phe)-(Cyclohexyl-Gly)-Arg-NH2, in the active site of the blood clotting enzyme factor Xa was determined by using transferred nuclear Overhauser effect nuclear magnetic resonance (NMR) spectroscopy. They represent a family of peptidic inhibitors obtained by the screening of a vast combinatorial library. Each structure was first calculated by using standard computational procedures (distance geometry, simulated annealing, energy minimization) and then further refined by systematic search of the conformation of the inhibitor docked in the active site and repeating the simulated annealing and energy minimization. The final structure was optimized by molecular dynamics simulations of the inhibitor-complex in water. The NMR restraints were kept throughout the refinement. The inhibitors assume a compact, very well defined conformation, embedded into the substrate binding site not in the same way as a substrate, blocking thus the catalysis. The model allows to explain the mode of action, affinity, and specificity of the peptides and to map the active site.
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Affiliation(s)
- F Fraternali
- Marion Merrell Research Institute, HMR, Strasbourg, France
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Trull TJ, Useda JD, Conforti K, Doan BT. Borderline personality disorder features in nonclinical young adults: 2. Two-year outcome. J Abnorm Psychol 1997. [PMID: 9131850 DOI: 10.1037//0021-843x.106.2.307] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Borderline personality disorder (BPD) is thought to develop by early adulthood, and it is characterized by lack of control of anger, intense and frequent mood changes, impulsive acts, disturbed interpersonal relationships, and life-threatening behaviors. We describe data from a 2-year follow-up study of nonclinical young adults who, at study entry, exhibited a significant number of BPD features. Individuals with borderline features were more likely to have academic difficulties over the succeeding 2 years, and these participants were more likely to meet lifetime criteria for a mood disorder and to experience interpersonal dysfunction than their peers at the 2-year follow-up assessment. These findings indicate that BPD features are associated with poorer outcome even within a nonclinical population.
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Affiliation(s)
- T J Trull
- Department of Psychology, University of Missouri, Columbia 65211, USA
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Abstract
Borderline personality disorder (BPD) is thought to develop by early adulthood, and it is characterized by lack of control of anger, intense and frequent mood changes, impulsive acts, disturbed interpersonal relationships, and life-threatening behaviors. We describe data from a 2-year follow-up study of nonclinical young adults who, at study entry, exhibited a significant number of BPD features. Individuals with borderline features were more likely to have academic difficulties over the succeeding 2 years, and these participants were more likely to meet lifetime criteria for a mood disorder and to experience interpersonal dysfunction than their peers at the 2-year follow-up assessment. These findings indicate that BPD features are associated with poorer outcome even within a nonclinical population.
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Affiliation(s)
- T J Trull
- Department of Psychology, University of Missouri, Columbia 65211, USA
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Abstract
This report describes the first 1H-1H phased spectrum obtained in vivo from the hind-leg muscles of an intact mouse. TOCSY correlations can follow the complete spin system and give a more detailed graph of each molecule than can COSY. TOCSY is also better suited than COSY for studying long fatty-acid chains. All the peaks are in phase in a TOCSY experiment and the intensities of the cross-correlation peaks are less sensitive to low digitalization in the t1 domain than are those of COSY. The improvement in sensitivity was estimated by measuring the volumes of the cross-correlation peaks in COSY and TOCSY spectra.
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Affiliation(s)
- B Gillet
- Laboratoire de RMN biologique, ICSN-CNRS, Gif Sur Yvette, France
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Gillet B, Doan BT, Verre-Serrie C, Barbere B, Berenger G, Morin S, Koenig J, Peres M, Sebille A, Beloeil JC. In vivo 2D 1H NMR of mdx mouse muscle and myoblast cells during fusion: evidence for a characteristic signal of long chain fatty acids. Neuromuscul Disord 1993; 3:433-8. [PMID: 8186688 DOI: 10.1016/0960-8966(93)90091-w] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
We have previously demonstrated that 2D 1H NMR is suitable for studying cerebral metabolism. The same technique was used to study the hind leg muscle of normal (C57BL10) and dystrophic (mdx) mice. The results were compared to preliminary results for cultured muscle cells to determine the origin of fatty acid signals.
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Affiliation(s)
- B Gillet
- Laboratoire de RMN Biologique, ICSN-CNRS, Gif-sur-Yvette, France
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