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Corkery D, Ursu A, Lucas B, Grigalunas M, Kriegler S, Oliva R, Dec R, Koska S, Pahl A, Sievers S, Ziegler S, Winter R, Wu YW, Waldmann H. Inducin Triggers LC3-Lipidation and ESCRT-Mediated Lysosomal Membrane Repair. Chembiochem 2023; 24:e202300579. [PMID: 37869939 DOI: 10.1002/cbic.202300579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 10/16/2023] [Accepted: 10/20/2023] [Indexed: 10/24/2023]
Abstract
Lipidation of the LC3 protein has frequently been employed as a marker of autophagy. However, LC3-lipidation is also triggered by stimuli not related to canonical autophagy. Therefore, characterization of the driving parameters for LC3 lipidation is crucial to understanding the biological roles of LC3. We identified a pseudo-natural product, termed Inducin, that increases LC3 lipidation independently of canonical autophagy, impairs lysosomal function and rapidly recruits Galectin 3 to lysosomes. Inducin treatment promotes Endosomal Sorting Complex Required for Transport (ESCRT)-dependent membrane repair and transcription factor EB (TFEB)-dependent lysosome biogenesis ultimately leading to cell death.
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Affiliation(s)
- Dale Corkery
- Department of Chemistry, Umeå University, Umeå Centre for Microbial Research, Umeå, SE-90187, Sweden
| | - Andrei Ursu
- Department of Chemical Biology, Max Planck Institute of Molecular Physiology, Otto-Hahn-Strasse 11, 44227, Dortmund, Germany
| | - Belén Lucas
- Department of Chemical Biology, Max Planck Institute of Molecular Physiology, Otto-Hahn-Strasse 11, 44227, Dortmund, Germany
| | - Michael Grigalunas
- Department of Chemical Biology, Max Planck Institute of Molecular Physiology, Otto-Hahn-Strasse 11, 44227, Dortmund, Germany
| | - Simon Kriegler
- Physical Chemistry I - Biophysical Chemistry, Department of Chemistry and Chemical Biology, TU Dortmund University, Otto-Hahn-Strasse 4a, 44227 Dortmund, Germany
| | - Rosario Oliva
- Physical Chemistry I - Biophysical Chemistry, Department of Chemistry and Chemical Biology, TU Dortmund University, Otto-Hahn-Strasse 4a, 44227 Dortmund, Germany
- Present address: Department of Chemical Sciences, University of Naples Federico II, Via Cintia 4, Naples, 80126, Italy
| | - Robert Dec
- Physical Chemistry I - Biophysical Chemistry, Department of Chemistry and Chemical Biology, TU Dortmund University, Otto-Hahn-Strasse 4a, 44227 Dortmund, Germany
| | - Sandra Koska
- Department of Chemical Biology, Max Planck Institute of Molecular Physiology, Otto-Hahn-Strasse 11, 44227, Dortmund, Germany
| | - Axel Pahl
- Department of Chemical Biology, Max Planck Institute of Molecular Physiology, Otto-Hahn-Strasse 11, 44227, Dortmund, Germany
| | - Sonja Sievers
- Department of Chemical Biology, Max Planck Institute of Molecular Physiology, Otto-Hahn-Strasse 11, 44227, Dortmund, Germany
| | - Slava Ziegler
- Department of Chemical Biology, Max Planck Institute of Molecular Physiology, Otto-Hahn-Strasse 11, 44227, Dortmund, Germany
| | - Roland Winter
- Physical Chemistry I - Biophysical Chemistry, Department of Chemistry and Chemical Biology, TU Dortmund University, Otto-Hahn-Strasse 4a, 44227 Dortmund, Germany
| | - Yao-Wen Wu
- Department of Chemistry, Umeå University, Umeå Centre for Microbial Research, Umeå, SE-90187, Sweden
| | - Herbert Waldmann
- Department of Chemical Biology, Max Planck Institute of Molecular Physiology, Otto-Hahn-Strasse 11, 44227, Dortmund, Germany
- Faculty of Chemistry and Chemical Biology, Technical University Dortmund, Otto-Hahn-Strasse 6, Dortmund, 44227, Germany
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Liu J, Mallick S, Xie Y, Grassin C, Lucas B, Schölermann B, Pahl A, Scheel R, Strohmann C, Protzel C, Berg T, Merten C, Ziegler S, Waldmann H. Morphological Profiling Identifies the Motor Protein Eg5 as Cellular Target of Spirooxindoles. Angew Chem Int Ed Engl 2023; 62:e202301955. [PMID: 36929571 DOI: 10.1002/anie.202301955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 03/15/2023] [Accepted: 03/16/2023] [Indexed: 03/18/2023]
Abstract
Oxindoles and iso-oxindoles are natural product-derived scaffolds that provide inspiration for the design and synthesis of novel biologically relevant compound classes. Notably, the spirocyclic connection of oxindoles with iso-oxindoles has not been explored by nature but promises to provide structurally related compounds endowed with novel bioactivity. Therefore, methods for their efficient synthesis and the conclusive discovery of their cellular targets are highly desirable. We describe a selective RhIII -catalyzed scaffold-divergent synthesis of spirooxindole-isooxindoles and spirooxindole-oxindoles from differently protected diazooxindoles and N-pivaloyloxy aryl amides which includes a functional group-controlled Lossen rearrangement as key step. Unbiased morphological profiling of a corresponding compound collection in the Cell Painting assay efficiently identified the mitotic kinesin Eg5 as the cellular target of the spirooxindoles, defining a unique Eg5 inhibitor chemotype.
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Affiliation(s)
- Jie Liu
- Max Planck Institute of Molecular Physiology, Department of Chemical Biology, Otto-Hahn-Street 11, 44227, Dortmund, Germany
| | - Shubhadip Mallick
- Max Planck Institute of Molecular Physiology, Department of Chemical Biology, Otto-Hahn-Street 11, 44227, Dortmund, Germany
| | - Yusheng Xie
- Max Planck Institute of Molecular Physiology, Department of Chemical Biology, Otto-Hahn-Street 11, 44227, Dortmund, Germany
| | - Corentin Grassin
- Ruhr University Bochum, Faculty of Chemistry and Biochemistry, Organic Chemistry II, University-Street 150, 44801, Bochum, Germany
| | - Belén Lucas
- Max Planck Institute of Molecular Physiology, Department of Chemical Biology, Otto-Hahn-Street 11, 44227, Dortmund, Germany
| | - Beate Schölermann
- Max Planck Institute of Molecular Physiology, Department of Chemical Biology, Otto-Hahn-Street 11, 44227, Dortmund, Germany
| | - Axel Pahl
- Max Planck Institute of Molecular Physiology, Department of Chemical Biology, Otto-Hahn-Street 11, 44227, Dortmund, Germany
- Compound Management and Screening Center, Otto-Hahn-Street 11, 44227, Dortmund, Germany
| | - Rebecca Scheel
- Technical University Dortmund, Faculty of Chemistry, Inorganic Chemistry, Otto-Hahn-Street 6, 44221, Dortmund, Germany
| | - Carsten Strohmann
- Technical University Dortmund, Faculty of Chemistry, Inorganic Chemistry, Otto-Hahn-Street 6, 44221, Dortmund, Germany
| | - Christoph Protzel
- Leipzig University, Institute of Organic Chemistry, Johannisallee 29, 04103, Leipzig, Germany
| | - Thorsten Berg
- Leipzig University, Institute of Organic Chemistry, Johannisallee 29, 04103, Leipzig, Germany
| | - Christian Merten
- Ruhr University Bochum, Faculty of Chemistry and Biochemistry, Organic Chemistry II, University-Street 150, 44801, Bochum, Germany
| | - Slava Ziegler
- Max Planck Institute of Molecular Physiology, Department of Chemical Biology, Otto-Hahn-Street 11, 44227, Dortmund, Germany
| | - Herbert Waldmann
- Max Planck Institute of Molecular Physiology, Department of Chemical Biology, Otto-Hahn-Street 11, 44227, Dortmund, Germany
- Technical University Dortmund, Faculty of Chemistry, Chemical Biology, Otto-Hahn-Street 6, 44221, Dortmund, Germany
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3
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Liu J, Mallick S, Xie Y, Grassin C, Lucas B, Schölermann B, Pahl A, Scheel R, Strohmann C, Protzel C, Berg T, Merten C, Ziegler S, Waldmann H. Morphological profiling identifies the motor protein Eg5 as cellular target of spirooxindoles. Angew Chem Int Ed Engl 2023. [DOI: 10.1002/ange.202301955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Affiliation(s)
- Jie Liu
- Max-Planck-Institute of Molecular Physiology: Max-Planck-Institut fur molekulare Physiologie Department of Chemical Biology GERMANY
| | - Shubhadip Mallick
- Max-Planck-Institute of Molecular Physiology: Max-Planck-Institut fur molekulare Physiologie Department of Chemical Biology GERMANY
| | - Yusheng Xie
- Max-Planck-Institute of Molecular Physiology: Max-Planck-Institut fur molekulare Physiologie Department of Chemical Biology GERMANY
| | - Corentin Grassin
- Ruhr University Bochum: Ruhr-Universitat Bochum Faculty of Chemistry and Biochemistry GERMANY
| | - Belén Lucas
- Max-Planck-Institute of Molecular Physiology: Max-Planck-Institut fur molekulare Physiologie Department of Chemical Biology GERMANY
| | - Beate Schölermann
- Max-Planck-Institute of Molecular Physiology: Max-Planck-Institut fur molekulare Physiologie Department of Chemical Biology GERMANY
| | - Axel Pahl
- Max-Planck-Institute of Molecular Physiology: Max-Planck-Institut fur molekulare Physiologie Department of Chemical Biology GERMANY
| | - Rebecca Scheel
- TU Dortmund University: Technische Universitat Dortmund Faculty of Chemistry, Chemical Biology GERMANY
| | - Carsten Strohmann
- TU Dortmund University: Technische Universitat Dortmund Faculty of Chemistry, Inorganic Chemistry GERMANY
| | - Christoph Protzel
- Leipzig University: Universitat Leipzig Institute of Organic Chemistry GERMANY
| | - Thorsten Berg
- Leipzig University: Universitat Leipzig Institute of Organic Chemistry GERMANY
| | - Christian Merten
- Ruhr University Bochum: Ruhr-Universitat Bochum Faculty of CHemistry and Biochemistry GERMANY
| | - Slava Ziegler
- Max-Planck-Institute of Molecular Physiology: Max-Planck-Institut fur molekulare Physiologie Department of Chemical Biology GERMANY
| | - Herbert Waldmann
- Max-Planck-Institute of Molecular Physiology: Max-Planck-Institut fur molekulare Physiologie Chemical Biology Otto-Hahn-Str. 11 44227 Dortmund GERMANY
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de La Motte Rouge T, Bengrine Lefevre L, Mouret-Reynier MA, Asselain B, Lucas B, Gavoille C, Cornila C, Spaeth D, Colomba E, Patsouris A, Fabbro M, Chakiba C, Toussaint P, Simon H, Berton D, Garbay D, Garnier Tixidre C, Coeffic D, Collard O, Lefeuvre-Plesse C. 823P Extended follow-up of a real-world cohort of patients (pts) with BRCA mutation (BRCAm) relapsed epithelial ovarian cancer (EOC) receiving olaparib maintenance therapy: The GINECO RETROLA study. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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5
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Sanson F, Pandey AK, Papagiannouli I, Harms F, Dovillaire G, Baynard E, Demailly J, Guilbaud O, Lucas B, Neveu O, Pittman M, Ros D, Richardson M, Johnson E, Li W, Balcou P, Kazamias S. Highly multimodal structure of high topological charge extreme ultraviolet vortex beams. Opt Lett 2020; 45:4790-4793. [PMID: 32870858 DOI: 10.1364/ol.397206] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 07/28/2020] [Indexed: 06/11/2023]
Abstract
Optical beams carrying orbital angular momentum are a very active field of research for their prospective applications, especially at short wavelengths. We consider here such beams produced through high-harmonic generation (HHG) in a rare gas and analyze the characterization of their high-charge vortex structure by an extreme ultraviolet Hartmann wavefront sensor. We show that such HHG beams are generally composed of a set of numerous vortex modes. The sensitivity of the intensity and phase of the HHG beam to the infrared laser aberrations is investigated using a deformable mirror.
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Gomes G, Romano L, Frolich D, Lucas B, Lorena L, Paixão A, Deutekom M, Krose B, Dourado V, Castro P. Tailoring digital apps to support active ageing in a low income community. J Sci Med Sport 2019. [DOI: 10.1016/j.jsams.2019.08.094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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7
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Sanson F, Pandey AK, Harms F, Dovillaire G, Baynard E, Demailly J, Guilbaud O, Lucas B, Neveu O, Pittman M, Ros D, Richardson M, Johnson E, Li W, Balcou P, Kazamias S. Hartmann wavefront sensor characterization of a high charge vortex beam in the extreme ultraviolet spectral range. Opt Lett 2018; 43:2780-2783. [PMID: 29905687 DOI: 10.1364/ol.43.002780] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Accepted: 05/02/2018] [Indexed: 06/08/2023]
Abstract
We demonstrate for the first time, to the best of our knowledge, the ability of extreme ultraviolet (XUV) Hartmann wavefront sensors to characterize high charge vortex beams produced by high-order harmonic generation up to the order of 25. We also show that phase matched absorption limited high harmonic generation is able to maintain the high charge vortex structure of the XUV beam even in a rather long (1 cm) generation medium.
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8
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Pliske G, Heide S, Lucas B, Brandstädter K, Walcher F, Kropf S, Lessig R, Piatek S. [Legal medicine specialists within the framework of acute care : Analysis of legal medicine consultations in relation to the victims' statistics of the state office of criminal investigation in Saxony-Anhalt]. Unfallchirurg 2017; 121:391-396. [PMID: 28921014 DOI: 10.1007/s00113-017-0413-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
BACKGROUND In acute medical care, there are patients who have been injured by the influence of others. The aim of this study was to analyze all cases which were presented to the Institute for Legal Medicine of the University Halle (Saale). The cases where analyzed in relation to the victims' statistics of the state office of criminal investigation in Saxony-Anhalt. MATERIALS AND METHODS The consultations of the Institute for Legal Medicine Halle-Wittenberg for 2012-2015 were evaluated with regard to the age and gender distribution, the reasons for the consultation and time until the request for consultations. These cases were statistically compared to the victims' statistics of the state office of criminal investigation in Saxony-Anhalt 2014-2015. RESULTS A total of 536 cases (55.6% male and 44.4% female patients) were evaluated. In all, 62.1% of patients were under 18 years of age; 43.5% of all consultations were requested by pediatric (surgery) clinics. The most common reasons for consultation were sexual child abuse or violence against children (50.7%). Compared to the victims' statistics, significantly more children were examined by legal medicine specialists than could have been expected (p < 0.001). In adult patients, the most common causes for consultation were acts of violence (20.4%) and domestic violence (10.1%). Among adults, significantly more women and fewer men were presented than expected (p = 0.001). CONCLUSION There were only a small number of consultations of legal medicine specialists in relation to the victims' statistics. Most of them were children and women. The temporal latency between the act of violence and the consultations was one day and more. The latency and the renunciation of the consultation of the legal medicine specialists can lead to loss of evidence.
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Affiliation(s)
- G Pliske
- Klinik für Unfallchirurgie, Otto-von-Guericke Universität Magdeburg, Leipziger Str. 44, 39120, Magdeburg, Deutschland.
| | - S Heide
- Institut für Rechtsmedizin, Universitätsklinikum Halle (Saale), Halle (Saale), Deutschland
| | - B Lucas
- Klinik für Unfallchirurgie, Otto-von-Guericke Universität Magdeburg, Leipziger Str. 44, 39120, Magdeburg, Deutschland
| | - K Brandstädter
- Institut für Rechtsmedizin, Universitätsklinikum Halle (Saale), Außenstelle Magdeburg, Magdeburg, Deutschland
| | - F Walcher
- Klinik für Unfallchirurgie, Otto-von-Guericke Universität Magdeburg, Leipziger Str. 44, 39120, Magdeburg, Deutschland
| | - S Kropf
- Institut für Biometrie und Medizinische Informatik, Otto-von-Guericke Universität Magdeburg, Magdeburg, Deutschland
| | - R Lessig
- Institut für Rechtsmedizin, Universitätsklinikum Halle (Saale), Halle (Saale), Deutschland
| | - S Piatek
- Klinik für Unfallchirurgie, Otto-von-Guericke Universität Magdeburg, Leipziger Str. 44, 39120, Magdeburg, Deutschland
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Lucas B. Sécuriser le déménagement d’un service de radiothérapie : expérience toulousaine. Cancer Radiother 2015. [DOI: 10.1016/j.canrad.2015.07.141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Gonçalves A, Mailliez A, Dalenc F, You B, L'haridon T, Leheurteur M, Tredan O, Ferrero J, Del Piano F, Alliot C, Lucas B, Dohollou N, Cottu P, Dauba J, De Cremoux P, Pierga J, Orsini C, Pulido M, Macgrogan G, Bonnefoi H. A Phase Ii Trial of Abiraterone Acetate Plus Prednisone in Patients with Molecular Apocrine (Her2-Negative) Locally Advanced or Metastatic Breast Cancer: a Ucbg Study. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu329.60] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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11
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Troisgros O, Gremeaux V, Lucas B, Jacquin A, Khoumri C, Barnay JL, Aboua-Eboulé C, Bénaim C, Casillas JM, Giroud M, Bejot Y. Orientation des structures de soins après l’AVC et facteurs associés dans une étude de population : le registre dijonnais des AVC. Ann Phys Rehabil Med 2014. [DOI: 10.1016/j.rehab.2014.03.110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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12
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Remaut K, Symens N, Lucas B, Demeester J, De Smedt SC. Cell division responsive peptides for optimized plasmid DNA delivery: the mitotic window of opportunity? J Control Release 2014; 179:1-9. [PMID: 24462902 DOI: 10.1016/j.jconrel.2014.01.013] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2013] [Revised: 01/07/2014] [Accepted: 01/13/2014] [Indexed: 10/25/2022]
Abstract
The delivery of plasmid DNA remains hard to achieve, especially due to the presence of the nuclear membrane barrier. During cell division, however, the nuclear membrane is temporarily disassembled. We evaluated two different strategies to optimize plasmid DNA delivery in dividing cells: 1) phosphorylation responsive peptides that release plasmid DNA preferentially during mitosis and 2) chromatin targeting peptides to anchor plasmid DNA in newly formed nuclei upon cell division. Peptide/DNA particles alone were not efficient in penetrating cells. Upon co-delivery with lipid-based carriers, however, transfection efficiency drastically improved when compared to controls. For the phosphorylation responsive peptides, the presence of the phosphorylation sequence slightly increased transfection efficiency. For the chromatin targeting peptides, however, the chromatin targeting sequence did not seem to be the main reason for the improvement of transfection efficiency when applied in living cells. In conclusion, the pre-condensation of plasmid DNA with peptides improves lipid based delivery, but the nature of the peptides (cell responsive or not) does not seem to be the main reason for the improvement. It seems that the nuclear entry of foreign plasmid DNA is still under tight control, even during the mitotic window of opportunity.
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Affiliation(s)
- K Remaut
- Laboratory of General Biochemistry and Physical Pharmacy, Ghent University, Harelbekestraat 72, 9000 Ghent, Belgium
| | - N Symens
- Laboratory of General Biochemistry and Physical Pharmacy, Ghent University, Harelbekestraat 72, 9000 Ghent, Belgium
| | - B Lucas
- Laboratory of General Biochemistry and Physical Pharmacy, Ghent University, Harelbekestraat 72, 9000 Ghent, Belgium
| | - J Demeester
- Laboratory of General Biochemistry and Physical Pharmacy, Ghent University, Harelbekestraat 72, 9000 Ghent, Belgium
| | - S C De Smedt
- Laboratory of General Biochemistry and Physical Pharmacy, Ghent University, Harelbekestraat 72, 9000 Ghent, Belgium.
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Beloglazova NV, Shmelin PS, Speranskaya ES, Lucas B, Helmbrecht C, Knopp D, Niessner R, De Saeger S, Goryacheva IY. Quantum Dot Loaded Liposomes As Fluorescent Labels for Immunoassay. Anal Chem 2013; 85:7197-204. [DOI: 10.1021/ac401729y] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- N. V. Beloglazova
- Ghent University, Faculty of Pharmaceutical Sciences, Laboratory of Food Analysis,
9000 Ghent, Belgium
| | - P. S. Shmelin
- OJSC CSRIT Technomash, “Neuronet”, 121108 Moscow, Russia
| | - E. S. Speranskaya
- Saratov State University, Chemistry Institute, Department of General and Inorganic Chemistry,
410012 Saratov, Russia
| | - B. Lucas
- Ghent University, Faculty of Pharmaceutical
Sciences, Laboratory of General Biochemistry
and Physical Pharmacy, 9000 Ghent, Belgium
| | - C. Helmbrecht
- Technische Universität München, Institute of Hydrochemistry and Chemical Balneology & Chair of Analytical Chemistry, D-81377 München, Germany
| | - D. Knopp
- Technische Universität München, Institute of Hydrochemistry and Chemical Balneology & Chair of Analytical Chemistry, D-81377 München, Germany
| | - R. Niessner
- Technische Universität München, Institute of Hydrochemistry and Chemical Balneology & Chair of Analytical Chemistry, D-81377 München, Germany
| | - S. De Saeger
- Ghent University, Faculty of Pharmaceutical Sciences, Laboratory of Food Analysis,
9000 Ghent, Belgium
| | - I. Yu. Goryacheva
- Saratov State University, Chemistry Institute, Department of General and Inorganic Chemistry,
410012 Saratov, Russia
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Donzé C, Barbot P, Scheiber-Nogueira M, Perrin S, Lucas B, Hautecoeur P. Irrigations transanales et troubles anorectaux dans la sclérose en plaques : évaluation de l’observance et de l’efficacité. Rev Neurol (Paris) 2013. [DOI: 10.1016/j.neurol.2013.01.421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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15
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Bourgeois H, Soulié P, Lucas B, Mercier BA, Zannetti A, Delecroix V, L'haridon T, Blot E, Delaloge S, Grudé F. Abstract OT3-3-04: ALOPREV: first cooling scalp trial for prevention of persisting alopecia after docetaxel for early breast cancer patients. Cancer Res 2012. [DOI: 10.1158/0008-5472.sabcs12-ot3-3-04] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
During SABCS 2009, Western France Observatory of Cancer has presented “ALOPERS” results from more than one hundred patients with persisting alopecia or suboptimal hair regrowth after chemotherapy for early breast cancer. Docetaxel 75–100 mg/msq was concerned for majority of patients. 43% of patients experienced alopecia more than 24 months after their last chemotherapy infusion. Optimal information of patients about alopecia and persisting alopecia appears to be mandatory before treatment: 47% of patients undergo a psychological shock during hair loss. Morevover, BCIRG 001 study (TAC versus FAC) led to the conclusion that docetaxel 75 mg/msq is responsible for persisting alopecia for 3% of patients. So, by extrapolating, in France, each year, docetaxel could induce a persisting alopecia in 300 patients. To confirm this figure, “ERALOP” study is in progress to evaluate precisely the incidence of persisting alopecia after docetaxel in early breast cancer patients and then theses data will be communicated to ANSM. It must be noticed that 8% of patients refused to be treated because of the risk of persistant alopecia (Trueb et al, 2010). That's why it is a worldwide public health problem, with personal and societal implications.
As alopecia is universal after FEC100 regimen, the cooling scalp has been supposed to be very effective during docetaxel 1 hour infusion and to allow a better hair regrowth but with a high risk in term of tolerance. Since 2012, a prospective clinical trial “ALOPREV” has begun in Western France to evaluate tolerance of cooling scalp, after 3–4 courses of FEC100 regimen and during 3–4 courses of docetaxel 100 mg/msq, for patients treated for early breast cancer. So, ALOPREV is designed as a safety trial. First, cooling scalp major toxicities (headache, neck pain, discomfort associated with cold, sinusitis) are evaluated during each docetaxel course by the patient. Then, auto-questionnary about hair loss and regrowth, nails disorders and others toxicities due to docetaxel and questionnary about quality of life (EORTC QLQ-C30 and BR-23 scales) is completed by the patients before, during and after treatment. Patients will be followed-up 12 months and final toxicities will be reported by physicians. According to our daily practice, it will demonstrate that 60% of patients could tolerate two consecutive cooling scalps during docetaxel infusion, and with statistical considerations (alpha-beta risks and 10% of ineligibility). So 160 patients must be included during inclusion period (18 months). 10 public or private care centers have been opened (45 investigators). This trial implicates particularly nurses teams and all patients will sign an informed consent before FEC100 courses. ALOPREV started two months ago and 25 patients are already enrolled.
In conclusion, cooling scalp is known to be safe, manageable and partially effective before hair loss. ALOPREV will evaluate safety and efficacy to avoid persisting alopecia after hair loss.
Citation Information: Cancer Res 2012;72(24 Suppl):Abstract nr OT3-3-04.
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Affiliation(s)
- H Bourgeois
- Clinique Victor Hugo, Le Mans, France; Observatoire dédié au Cancer Bretagne Pays de Loire, Angers, France; Institut de Cancérologie de l'Ouest, Angers Nantes, France; CHRU Morvan, Brest, France; CHP, Saint Grégoire, France; CHD, Cholet, France; Pôle Hospitalier Mutualiste, Saint Nazaire, France; CHD, La Roche sur Yon, France; Centre Hospitalier Bretagne Atlantique, Vannes, France; Clinique Océane, Centre Saint Yves, Vannes, France; Institut Gustave Roussy, Villejuif, France
| | - P Soulié
- Clinique Victor Hugo, Le Mans, France; Observatoire dédié au Cancer Bretagne Pays de Loire, Angers, France; Institut de Cancérologie de l'Ouest, Angers Nantes, France; CHRU Morvan, Brest, France; CHP, Saint Grégoire, France; CHD, Cholet, France; Pôle Hospitalier Mutualiste, Saint Nazaire, France; CHD, La Roche sur Yon, France; Centre Hospitalier Bretagne Atlantique, Vannes, France; Clinique Océane, Centre Saint Yves, Vannes, France; Institut Gustave Roussy, Villejuif, France
| | - B Lucas
- Clinique Victor Hugo, Le Mans, France; Observatoire dédié au Cancer Bretagne Pays de Loire, Angers, France; Institut de Cancérologie de l'Ouest, Angers Nantes, France; CHRU Morvan, Brest, France; CHP, Saint Grégoire, France; CHD, Cholet, France; Pôle Hospitalier Mutualiste, Saint Nazaire, France; CHD, La Roche sur Yon, France; Centre Hospitalier Bretagne Atlantique, Vannes, France; Clinique Océane, Centre Saint Yves, Vannes, France; Institut Gustave Roussy, Villejuif, France
| | - Blas A Mercier
- Clinique Victor Hugo, Le Mans, France; Observatoire dédié au Cancer Bretagne Pays de Loire, Angers, France; Institut de Cancérologie de l'Ouest, Angers Nantes, France; CHRU Morvan, Brest, France; CHP, Saint Grégoire, France; CHD, Cholet, France; Pôle Hospitalier Mutualiste, Saint Nazaire, France; CHD, La Roche sur Yon, France; Centre Hospitalier Bretagne Atlantique, Vannes, France; Clinique Océane, Centre Saint Yves, Vannes, France; Institut Gustave Roussy, Villejuif, France
| | - A Zannetti
- Clinique Victor Hugo, Le Mans, France; Observatoire dédié au Cancer Bretagne Pays de Loire, Angers, France; Institut de Cancérologie de l'Ouest, Angers Nantes, France; CHRU Morvan, Brest, France; CHP, Saint Grégoire, France; CHD, Cholet, France; Pôle Hospitalier Mutualiste, Saint Nazaire, France; CHD, La Roche sur Yon, France; Centre Hospitalier Bretagne Atlantique, Vannes, France; Clinique Océane, Centre Saint Yves, Vannes, France; Institut Gustave Roussy, Villejuif, France
| | - V Delecroix
- Clinique Victor Hugo, Le Mans, France; Observatoire dédié au Cancer Bretagne Pays de Loire, Angers, France; Institut de Cancérologie de l'Ouest, Angers Nantes, France; CHRU Morvan, Brest, France; CHP, Saint Grégoire, France; CHD, Cholet, France; Pôle Hospitalier Mutualiste, Saint Nazaire, France; CHD, La Roche sur Yon, France; Centre Hospitalier Bretagne Atlantique, Vannes, France; Clinique Océane, Centre Saint Yves, Vannes, France; Institut Gustave Roussy, Villejuif, France
| | - T L'haridon
- Clinique Victor Hugo, Le Mans, France; Observatoire dédié au Cancer Bretagne Pays de Loire, Angers, France; Institut de Cancérologie de l'Ouest, Angers Nantes, France; CHRU Morvan, Brest, France; CHP, Saint Grégoire, France; CHD, Cholet, France; Pôle Hospitalier Mutualiste, Saint Nazaire, France; CHD, La Roche sur Yon, France; Centre Hospitalier Bretagne Atlantique, Vannes, France; Clinique Océane, Centre Saint Yves, Vannes, France; Institut Gustave Roussy, Villejuif, France
| | - E Blot
- Clinique Victor Hugo, Le Mans, France; Observatoire dédié au Cancer Bretagne Pays de Loire, Angers, France; Institut de Cancérologie de l'Ouest, Angers Nantes, France; CHRU Morvan, Brest, France; CHP, Saint Grégoire, France; CHD, Cholet, France; Pôle Hospitalier Mutualiste, Saint Nazaire, France; CHD, La Roche sur Yon, France; Centre Hospitalier Bretagne Atlantique, Vannes, France; Clinique Océane, Centre Saint Yves, Vannes, France; Institut Gustave Roussy, Villejuif, France
| | - S Delaloge
- Clinique Victor Hugo, Le Mans, France; Observatoire dédié au Cancer Bretagne Pays de Loire, Angers, France; Institut de Cancérologie de l'Ouest, Angers Nantes, France; CHRU Morvan, Brest, France; CHP, Saint Grégoire, France; CHD, Cholet, France; Pôle Hospitalier Mutualiste, Saint Nazaire, France; CHD, La Roche sur Yon, France; Centre Hospitalier Bretagne Atlantique, Vannes, France; Clinique Océane, Centre Saint Yves, Vannes, France; Institut Gustave Roussy, Villejuif, France
| | - F Grudé
- Clinique Victor Hugo, Le Mans, France; Observatoire dédié au Cancer Bretagne Pays de Loire, Angers, France; Institut de Cancérologie de l'Ouest, Angers Nantes, France; CHRU Morvan, Brest, France; CHP, Saint Grégoire, France; CHD, Cholet, France; Pôle Hospitalier Mutualiste, Saint Nazaire, France; CHD, La Roche sur Yon, France; Centre Hospitalier Bretagne Atlantique, Vannes, France; Clinique Océane, Centre Saint Yves, Vannes, France; Institut Gustave Roussy, Villejuif, France
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Lucas B, Delpuech B, Garcia J. Manipulateur d’électroradiologie médicale et radiothérapie guidée par l’image : évolution du métier. Cancer Radiother 2012. [DOI: 10.1016/j.canrad.2012.07.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Limousin N, Lucas B, Salhi H, Roubeau V, Bertrand P, Autret A. La biocéramique fait-elle mieux dormir ? Neurophysiol Clin 2012. [DOI: 10.1016/j.neucli.2012.02.116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Kumar SS, Lucas B, Soorkia S, Barat M, Fayeton JA. Cα–Cβ chromophore bond dissociation in protonated tyrosine-methionine, methionine-tyrosine, tryptophan-methionine, methionine-tryptophan and their sulfoxide analogs. Phys Chem Chem Phys 2012; 14:10225-32. [DOI: 10.1039/c2cp40773f] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Kumar SS, Pérot-Taillandier M, Lucas B, Soorkia S, Barat M, Fayeton JA. UV photodissociation dynamics of deprotonated 2'-deoxyadenosine 5'-monophosphate [5'-dAMP-H]-. J Phys Chem A 2011; 115:10383-90. [PMID: 21776981 DOI: 10.1021/jp204738q] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The UV photodissociation dynamics of deprotonated 2'-deoxyadenosine 5'-monophosphate ([5'-dAMP-H](-)) has been studied using a unique technique based on the coincident detection of the ion and the neutral fragments. The observed fragment ions are m/z 79 (PO(3)(-)), 97 (H(2)PO(4)(-)), 134 ([A-H](-)), 177 ([dAMP-H-A-H(2)O](-)), and 195 ([dAMP-H-A](-)), where "A" refers to a neutral adenine molecule. The relative abundances are comparable to that found in previous studies on [5'-dAMP-H](-) employing different excitation processes, i.e., collisions and UV photons. The fragmentation times of the major channels have been measured, and are all found to be on the microsecond time scale. The fragmentation mechanisms for all channels have been characterized using velocity correlation plots of the ion and neutral fragment(s). The findings show that none of the dissociation channels of [5'-dAMP-H](-) is UV specific and all proceed via statistical fragmentation on the ground state after internal conversion, a result similar to fragmentations induced by collisions.
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Affiliation(s)
- S Sunil Kumar
- Institut des Science Moléculaires d'Orsay, CNRS UMR 8214, Université Paris Sud 11, F-91405 Orsay Cedex, France
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Nagant C, Feng Y, Lucas B, Braeckmans K, Savage P, Dehaye JP. Effect of a low concentration of a cationic steroid antibiotic (CSA-13) on the formation of a biofilm by Pseudomonas aeruginosa. J Appl Microbiol 2011; 111:763-72. [PMID: 21699631 DOI: 10.1111/j.1365-2672.2011.05085.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
AIMS Cationic steroids like CSA-13 have been designed by analogy with antimicrobial cationic peptides and have bactericidal properties. The purpose of this work was to evaluate the effect of a low concentration (1 mg l(-1)) of CSA-13 on the formation of a biofilm by eight strains of Pseudomonas aeruginosa (four mucoid and four nonmucoid strains) on an inert surface. METHOD AND RESULTS The biofilm formation was measured with the Crystal Violet method. CSA-13 inhibited the formation of a biofilm by three strains. The zeta potential varied among the strains. The inhibition by the cationic steroid analogue affected the populations of bacteria with the lowest zeta potential. P. aeruginosa bound a fluorescent, more hydrophobic analogue of CSA-13 but there was no correlation between this binding and the inhibition by CSA-13 of biofilm formation. The interaction of CSA-13 with bacteria did not modify their ability to produce rhamnolipids. CONCLUSIONS A low concentration of CSA-13 inhibits the formation of a biofilm by P. aeruginosa through electrostatic interactions and without affecting the production of rhamnolipids. SIGNIFICANCE AND IMPACT OF THE STUDY A low, nontoxic concentration of CSA-13 might be beneficial for the prevention of biofilm formation.
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Affiliation(s)
- C Nagant
- Laboratoire de Chimie biologique et médicale et de Microbiologie pharmaceutique, Faculté de Pharmacie, Université libre de Bruxelles, Brussels, Belgium
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Scotte F, Herve C, Bugat R, Farsi F, Lucas B, Namer M, Tourani J, Tournigand C, Yazbek G, Oudard S, Tahiri K, Krakowski I. Supportive care organization in France: State of the art. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.e16575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Grudé F, Campone M, Lortholary A, Delva R, Soulie P, Kerbrat P, Ganem G, Bourgeois H, Van Hulst S, Vuillemin E, Hardy-Bessard AC, Goudier MJ, Simon H, Lucas B, Priou F, Riché C, Gamelin E. Étude de phase IV de pharmacovigilance portant sur la toxicité cardiaque du trastuzumab en néoadjuvant et adjuvant dans le cancer du sein. Analyse conduite par l’Observatoire des Médicaments et des Innovations Thérapeutiques de Bretagne et des Pays de la Loire (OMIT B PL). ONCOLOGIE 2010. [DOI: 10.1007/s10269-010-1888-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Remaut K, Symens N, Lucas B, Demeester J, De Smedt SC. Efficient delivery of intact phosphodiester oligonucleotides by poly-beta-amino esters. J Control Release 2010; 144:65-74. [PMID: 20114066 DOI: 10.1016/j.jconrel.2010.01.028] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2009] [Revised: 01/13/2010] [Accepted: 01/17/2010] [Indexed: 11/15/2022]
Abstract
Due to their great instability, phosphodiester antisense oligonucleotides (PO-ODNs) are rapidly degraded in the intracellular environment, which limits their biological activity. The release of PO-ODNs during a prolonged period of time could however greatly enhance their antisense effect by creating a pool of intact PO-ODNs at any time point. Poly-beta-aminoesters are biodegradable cationic polymers which show potential for the controlled release of short DNA fragments like ODNs and small interfering RNA (siRNA). In this research we evaluated biodegradable poly-beta-aminoesters as carriers for PO-ODNs and compared the antisense activity with nuclease stable phosphothioate (PS) ODNs. PBAE1 polymers were not able to generate an antisense effect with PO- or PS-ODNs, most likely due to their poor cellular uptake. When complexed to PBAE2 polymers at N/P ratio 10, both PO- and PS-ODNs downregulated the targeted protein expression with 70%. By confocal imaging we observed a high concentration of released PO-ODNs that formed nuclear bodies in the nucleoplasm. The ODNs in these nuclear bodies were still intact as could be demonstrated by Fluorescence Resonance Energy Transfer (FRET) and acceptor photobleaching. This was in clear contrast to PO-ODNs delivery by cationic liposomes where the ODNs that accumulated in the nucleus were degraded and nuclear bodies were not observed. We conclude that PBAE2 shows potential for the delivery of nuclease sensitive PO-ODNs. This occurs however not through a time controlled release profile, but rather due to the rapid delivery of a high concentration of intact PO-ODNs that form nuclear bodies in the nuclei of the cells. These nuclear bodies can most likely act as a depot of intact PO-ODNs, resulting in efficient antisense activity.
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Affiliation(s)
- K Remaut
- Laboratory of General Biochemistry and Physical Pharmacy, Ghent University, Ghent Research Group on Nanomedicines, Harelbekestraat 72, 9000 Ghent, Belgium
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Affiliation(s)
- M. Pérot
- Université Paris-Sud, Laboratoire des Collisions Atomiques et Moléculaires, UMR 8625, Bât. 351, Orsay, F-91405 France and Université. Paris-Sud, Laboratoire de Photophysique Moléculaire, UPR 3361, Bât. 210, Orsay, F-91405 France
| | - B. Lucas
- Université Paris-Sud, Laboratoire des Collisions Atomiques et Moléculaires, UMR 8625, Bât. 351, Orsay, F-91405 France, and CNRS, UMR 8625, Orsay, F-91405 France
| | - M. Barat
- Université Paris-Sud, Laboratoire des Collisions Atomiques et Moléculaires, UMR 8625, Bât. 351, Orsay, F-91405 France, and CNRS, UMR 8625, Orsay, F-91405 France
| | - J. A. Fayeton
- Université Paris-Sud, Laboratoire des Collisions Atomiques et Moléculaires, UMR 8625, Bât. 351, Orsay, F-91405 France, and CNRS, UMR 8625, Orsay, F-91405 France
| | - C. Jouvet
- Université Paris-Sud, Laboratoire de Photophysique Moléculaire, UPR 3361, Bât. 210, Orsay, F-91405 France, and CNRS, UPR 3361, Orsay, F-91405 France
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Homer L, Muller M, Dupré PF, Lucas B, Pradier O. [Uterine sarcoma associated with tamoxifen use after breast cancer: Review of the pathogenesis]. ACTA ACUST UNITED AC 2009; 38:629-33. [PMID: 19833452 DOI: 10.1016/j.jgyn.2009.09.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2008] [Revised: 09/03/2009] [Accepted: 09/14/2009] [Indexed: 11/28/2022]
Abstract
Tamoxifen is widely used in the breast cancer treatment. Its side effects on the endometrium are well-known, but more and more worse prognosis uterine sarcoma are described. Based on recent literature review, the cause and effect chain between tamoxifen and uterine sarcoma is argued, which confirms that a risk exists as from 2 years of treatment, a cumulative dose of 15 g, and that malignant mixed mesodermal tumours appear to be the most frequent.
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Affiliation(s)
- L Homer
- Service de gynécologie obstétrique et médecine de la reproduction, CHU de Brest, Brest 29200, France.
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Kadhane U, Pérot M, Lucas B, Barat M, Fayeton J, Jouvet C, Ehlerding A, Kirketerp MB, Nielsen SB, Wyer J, Zettergren H. Photodissociation of protonated tryptamine and its supramolecular complex with 18-crown-6 ether: Dissociation times and channels, absorption spectra, and excited states calculations. Chem Phys Lett 2009. [DOI: 10.1016/j.cplett.2009.08.064] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Lepère V, Picard YJ, Barat M, Fayeton JA, Lucas B, Béroff K. Photodissociation dynamics of Ar2+ and Ar3+ excited by 527 nm photons. J Chem Phys 2009; 130:194301. [DOI: 10.1063/1.3130974] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Fayazpour F, Lucas B, Huyghebaert N, Braeckmans K, Derveaux S, Vandenbroucke R, Remon J, Demeester J, Vervaet C, De Smedt S. Opportunities for digitally encoded microcarriers in pharmacy and cell-based assays. Eur J Pharm Sci 2008. [DOI: 10.1016/j.ejps.2008.02.073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Lucas B, Barat M, Fayeton J, Jouvet C, Çarçabal P, Grégoire G. Statistical versus non-statistical photo-fragmentation of protonated GWG tri-peptide induced by UV excitation. Chem Phys 2008. [DOI: 10.1016/j.chemphys.2007.09.054] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Lucas B, Barat M, Fayeton JA, Perot M, Jouvet C, Grégoire G, Brøndsted Nielsen S. Mechanisms of photoinduced CαCβ bond breakage in protonated aromatic amino acids. J Chem Phys 2008; 128:164302. [DOI: 10.1063/1.2899648] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Grigo K, Wirsing A, Lucas B, Klein-Hitpass L, Ryffel GU. HNF4 alpha orchestrates a set of 14 genes to down-regulate cell proliferation in kidney cells. Biol Chem 2008; 389:179-87. [PMID: 18163890 DOI: 10.1515/bc.2008.011] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.3] [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: 12/20/2022]
Abstract
Abstract Few genes are known to be involved in renal cell carcinoma (RCC) development and progression. The cell-specific transcription factor hepatocyte nuclear factor 4 alpha (HNF4 alpha) is down-regulated in RCC and we have shown that HNF4 alpha inhibits cell proliferation in the embryonic kidney cell line HEK293. To clarify the possible tumor suppressor activity of HNF4 alpha we analyzed the whole human expression profile in HEK293 cells upon HNF4 alpha induction. By comparing induced and uninduced cells, we identified 1411 differentially expressed genes. Using RNA interference, we screened 56 HNF4 alpha-regulated genes for their possible role in mediating inhibition of cell proliferation triggered by HNF4 alpha. We demonstrate that 14 of these regulated genes are able to contribute to the inhibitory effect of HNF4 alpha on cell proliferation, including well-known cancer genes, such as CDKN1A (p21), TGFA, MME (NEP) and ADAMTS1. In addition, the genes SEPP1, THEM2, BPHL, DSC2, ANK3, ALDH6A1, EPHX2, NELL2, EFHD1 and PROS1 are also part of the network of HNF4 alpha target genes that regulate proliferation in HEK293 cells. Therefore, we postulate that HNF4 alpha orchestrates, at least, these 14 genes to regulate cell proliferation in HEK293 cells and that down-regulation of HNF4 alpha could contribute to the progression of kidney cancer.
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Affiliation(s)
- Karen Grigo
- Institut für Zellbiologie (Tumorforschung), Universitätsklinikum Essen, Universität Duisburg-Essen, D-45122 Essen, Germany
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Jardri R, Delevoye-Turrell Y, Lucas B, Pins D, Thomas P, Delion P, Goeb J. Coupling repetitive TMS with functional MRI for the treatment of drug-resistant hallucinations in children with early onset schizophrenia. Eur Psychiatry 2008. [DOI: 10.1016/j.eurpsy.2008.01.062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Lefaucheur JP, Lucas B, Andraud F, Hogrel JY, Bellivier F, Del Cul A, Rousseva A, Leboyer M, Paillère-Martinot ML. Inter-hemispheric asymmetry of motor corticospinal excitability in major depression studied by transcranial magnetic stimulation. J Psychiatr Res 2008; 42:389-98. [PMID: 17449060 DOI: 10.1016/j.jpsychires.2007.03.001] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2005] [Revised: 01/29/2007] [Accepted: 03/05/2007] [Indexed: 11/28/2022]
Abstract
BACKGROUND Imaging and electroencephalographic studies have reported inter-hemispheric asymmetries in frontal cortical regions associated with depression. This study aimed at comparing motor corticospinal excitability assessed by methods of transcranial magnetic stimulation (TMS) between the right and left hemispheres in patients with major depression and healthy controls. METHOD Patients with major depression (n=35) and healthy controls (n=35) underwent a bilateral study of various motor corticospinal excitability parameters, including rest motor threshold (RMT), corticospinal silent period (CSP) duration and intra-cortical inhibition (ICI) and facilitation (ICF). Indexes of asymmetry were calculated, and the relationships between excitability parameters and clinical scores of depression were statistically analyzed. RESULTS Depressed patients showed a reduced excitability of both excitatory (RMT, ICF) and inhibitory (CSP, ICI) processes in the left hemisphere, compared to the right hemisphere and to healthy controls. CONCLUSION The present results confirmed the existence of inter-hemispheric asymmetries in frontal cortex activities of depressed patients in favor of a left-sided reduced excitability. This neurophysiological approach may help to guide repetitive TMS procedures in the treatment of depressive disorders.
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Affiliation(s)
- J P Lefaucheur
- Service de Physiologie - Explorations Fonctionnelles, Hôpital Henri Mondor, Assistance Publique-Hôpitaux de Paris, 94010 Creteil, France.
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Tuna T, Chabot M, Pino T, Désesquelles P, LePadellec A, Martinet G, Barat M, Lucas B, Mezdari F, Montagnon L, Van-Oanh NT, Lavergne L, Lachaize A, Carpentier Y, Béroff K. Fragmentation branching ratios of highly excited hydrocarbon molecules CnH and their cations CnH+ (n⩽4). J Chem Phys 2008; 128:124312. [DOI: 10.1063/1.2884862] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
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Lepère V, Lucas B, Barat M, Fayeton JA, Picard VJ, Jouvet C, Çarçabal P, Nielsen I, Dedonder-Lardeux C, Grégoire G, Fujii A. Comprehensive characterization of the photodissociation pathways of protonated tryptophan. J Chem Phys 2007; 127:134313. [DOI: 10.1063/1.2770458] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
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Lucas B, Jänsch K, Ebert AD, Fuhrmann U, Kaufmann-Reiche U. Factors present in peritoneal fluid of endometriosis patients inhibit drug-induced apoptosis and induce migration of endometrial and endometriotic cells. Geburtshilfe Frauenheilkd 2007. [DOI: 10.1055/s-2007-989199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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Jones M, Bennett J, Lucas B, Miller D, Gray R. Mental health nurse supplementary prescribing: experiences of mental health nurses, psychiatrists and patients. J Adv Nurs 2007; 59:488-96. [PMID: 17681079 DOI: 10.1111/j.1365-2648.2007.04332.x] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.4] [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: 11/28/2022]
Abstract
AIM This paper is a report of a study to explore the views of patients, mental health nurses and psychiatrists involved in mental health nurse supplementary prescribing. BACKGROUND Medication prescribing by mental health nurses in the United Kingdom is controversial. However, the experience of mental health patients suggests that increasing prescribing capacity could be one strategy to provide a person-centred prescribing approach. METHOD A qualitative study was carried out in 2005. Semi-structured interviews were conducted with 12 psychiatrists, 11 mental health nurses with prescribing authority, and 12 patients who had been prescribed psychiatric medication by a mental health nurse. Participants were interviewed about positive aspects of supplementary prescribing including the extent of it being evidence-based, person-centred and clinically focussed. FINDINGS Participants from all three groups had a positive reaction to nurse supplementary prescribing. Mental health nurse prescribing was viewed as evidence-based, person-centred and with an additional focus on physical health. Mental health nurses worked within their levels of competency. Barriers to the implementation of mental health nurse prescribing were nurses' lack of prescribing experience, shortfalls in supervision, insufficient focus on redesigning the service to support the role of the mental health nurse, and preparation for the role. CONCLUSION Mental health nurse prescribing seems potentially beneficial. However, more rigorous audit and evaluation are needed to confirm its safety, patient satisfaction and health outcomes. Mental health nurse prescribing will require service redesign to ensure that is becomes embedded in the service organizational culture.
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Affiliation(s)
- M Jones
- Surrey and Borders Partnership NHS Trust, Leatherhead, UK.
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40
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Muller M, Dupre PF, Lucas B, Simon H, Malhaire JP, Guillemet C, Dessogne P, Pradier O. Le carcinosarcome ovarien. ACTA ACUST UNITED AC 2007; 36:399-402. [PMID: 17408876 DOI: 10.1016/j.jgyn.2007.03.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2006] [Revised: 02/05/2007] [Accepted: 03/01/2007] [Indexed: 11/21/2022]
Abstract
Ovarian carcinosarcoma, also called malignant mixed mesodermal tumour, is a rare ovarian tumour representing less than two per cent of ovarian cancers. Carcinosarcoma is an aggressive tumour, which associates some epithelial elements (carcinoma) with a stromal component (sarcoma). This tumour can be found in the female genital tractus, mostly in the uterus. It can be found even more rarely on the ovaries. The initial stage of the disease at the diagnostic is considered as the only prognostic factor. There is no existing consensus concerning treatment. Nevertheless, surgical treatment is paramount for the survival of patients. Response rates to chemotherapy are about 20%.
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Affiliation(s)
- M Muller
- Institut de cancérologie et d'hématologie, CHU de Brest, 29200 Brest, France.
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41
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Remaut K, Lucas B, Raemdonck K, Braeckmans K, Demeester J, De Smedt SC. Can we better understand the intracellular behavior of DNA nanoparticles by fluorescence correlation spectroscopy? J Control Release 2007; 121:49-63. [PMID: 17509716 DOI: 10.1016/j.jconrel.2007.04.008] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2007] [Revised: 04/02/2007] [Accepted: 04/09/2007] [Indexed: 11/21/2022]
Abstract
The use of non-viral gene carriers to deliver small nucleic acids like antisense oligonucleotides (ODNs) and small interfering RNA (siRNA) remains an attractive but challenging goal in antisense therapy. Indeed, different barriers need to be overcome in the delivery process before a therapeutic effect can be obtained. One promising technique which we have been evaluating to improve our understanding of the intracellular behavior of nucleic acids/carrier complexes is Fluorescence Correlation Spectroscopy (FCS). In particular, we have used FCS for studying the protection of the nucleic acids against enzymatic degradation, and the association and dissociation of the nucleic acids with their carrier, both in buffer and in living cells. In this report, we will review our experience and findings on the use of FCS for that purpose and discuss the strengths and weaknesses of this interesting technique.
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MESH Headings
- Animals
- Buffers
- Carbocyanines/metabolism
- Cell Line, Tumor
- Cell Nucleus/metabolism
- Chlorocebus aethiops
- Cytoplasm/metabolism
- DNA/chemistry
- Dextran Sulfate/chemistry
- Fluorescein-5-isothiocyanate/metabolism
- Fluorescence Resonance Energy Transfer
- Fluorescent Dyes/metabolism
- Humans
- Liposomes/chemistry
- Models, Chemical
- Nanoparticles/chemistry
- Oligonucleotides, Antisense/administration & dosage
- Oligonucleotides, Antisense/chemistry
- Oligonucleotides, Antisense/metabolism
- RNA, Small Interfering/administration & dosage
- RNA, Small Interfering/chemistry
- Ribonuclease, Pancreatic/pharmacology
- Spectrometry, Fluorescence/instrumentation
- Spectrometry, Fluorescence/methods
- Vero Cells
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Affiliation(s)
- K Remaut
- Laboratory of General Biochemistry and Physical Pharmacy, Ghent University, Harelbekestraat 72, 9000 Ghent, Belgium
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42
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Jardri R, Lucas B, Delevoye-Turrell Y, Delmaire C, Delion P, Thomas P, Goeb JL. An 11-year-old boy with drug-resistant schizophrenia treated with temporo-parietal rTMS. Mol Psychiatry 2007; 12:320. [PMID: 17389898 DOI: 10.1038/sj.mp.4001968] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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43
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Remaut K, Lucas B, Raemdonck K, Braeckmans K, Demeester J, De Smedt SC. Protection of oligonucleotides against enzymatic degradation by pegylated and nonpegylated branched polyethyleneimine. Biomacromolecules 2007; 8:1333-40. [PMID: 17358077 DOI: 10.1021/bm0611578] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.4] [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: 11/29/2022]
Abstract
Among the cationic polymers, polyethyleneimine (PEI) is a promising candidate for delivery of oligodeoxynucleotides (ODNs). In this study, we wondered whether pegylation of PEI influences the complexation with ODNs. We especially aimed to investigate whether ODNs are differently protected against enzymatic degradation in PEI and polyethylene glycol-polyethyleneimine (PEG-PEI) polyplexes. Using fluorescence resonance energy transfer combined with fluorescence correlation spectroscopy, we found that PEI/ODN polyplexes remain to protect the ODNs they carry over a prolonged period of time while in PEG-PEI/ODN polyplexes the degradation of the ODNs slowly proceeds. We attribute this to the fact that PEI seems to compact the ODNs more firmly in the polyplexes' core than PEG-PEI, which apparently also results in a better protection against enzymatic degradation. These observations may also influence the efficiency of PEI-based ODN delivery in vivo, where pegylation is an attractive strategy to enhance the stability of the polyplexes in the blood stream.
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Affiliation(s)
- K Remaut
- Laboratory of General Biochemistry and Physical Pharmacy, Ghent University, Harelbekestraat 72, 9000 Ghent, Belgium
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44
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Haque A, Lucas B, Hober D. [Influenza A/H5N1 virus outbreaks and prepardness to avert flu pandemic]. Ann Biol Clin (Paris) 2007; 65:125-33. [PMID: 17353166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2006] [Accepted: 12/27/2006] [Indexed: 05/14/2023]
Abstract
This review emphasizes the need to improve the knowledge of the biology of H5N1 virus, a candidate for causing the next influenza pandemic. In-depth knowledge of mode of infection, mechanisms of pathogenesis and immune response will help in devising an efficient and practical control strategy against this flu virus. We have discussed limitations of currently available vaccines and proposed novel approaches for making better vaccines against H5N1 influenza virus. They include cell-culture system, reverse genetics, adjuvant development. Our review has also underscored the concept of therapeutic vaccine (anti-disease vaccine), which is aimed at diminishing 'cytokine storm' seen in acute respiratory distress syndrome and/or hemophagocytosis.
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Affiliation(s)
- A Haque
- Chercheur au CNRS, Dartmouth medical school, One Medical Center Drive, Rubin Bldg., Lebanon, NH 03756, Etats-Unis.
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45
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Erdmann S, Senkel S, Arndt T, Lucas B, Lausen J, Klein-Hitpass L, Ryffel GU, Thomas H. Tissue-specific transcription factor HNF4alpha inhibits cell proliferation and induces apoptosis in the pancreatic INS-1 beta-cell line. Biol Chem 2007; 388:91-106. [PMID: 17214554 DOI: 10.1515/bc.2007.011] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [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: 12/19/2022]
Abstract
Hepatocyte nuclear factor 4alpha (HNF4alpha) is a tissue-specific transcription factor expressed in many cell types, including pancreatic beta-cells. Mutations in the HNF4alpha gene in humans give rise to maturity-onset diabetes of the young (MODY1) characterized by defective insulin secretion by beta-cells. To elucidate the mechanism underlying this disease, we introduced the splice form HNF4alpha2 or HNF4alpha8 into the rat beta-cell line INS-1. Upon tetracycline-induced expression, both HNF4alpha isoforms caused distinct changes in cell morphology and a massive loss of cell numbers that was correlated with reduced proliferation and induced apoptosis. This differential activity was reflected in oligonucleotide microarray analysis that identified more genes affected by HNF4alpha2 compared to HNF4alpha8, and suggests that both isoforms regulate largely the same set of genes, with HNF4alpha2 being a stronger transactivator. We verified the induction of selected transcripts by real-time RT-PCR, including KAI1 and AIF, both known to have apoptotic potential. By establishing cell lines with inducible expression of these target genes, we deduce that both factors are insufficient to induce apoptosis. We propose that the anti-proliferative and apoptotic properties of HNF4alpha may be an essential feature impaired in MODY1 and possibly also in type 2 diabetes.
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Affiliation(s)
- Silke Erdmann
- Universitätsklinikum Essen, Institut für Zellbiologie, D-45122 Essen, Germany
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46
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Lepère V, Lucas B, Barat M, Fayeton JA, Picard YJ, Jouvet C, Carçabal P, Nielsen I, Dedonder-Lardeux C, Grégoire G, Fujii A. Characterization of neutral fragments issued from the photodissociation of protonated tryptophane. Phys Chem Chem Phys 2007; 9:5330-4. [PMID: 17914468 DOI: 10.1039/b708814k] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [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: 01/31/2023]
Abstract
New information on the photo-fragmentation of biomolecules is obtained from the detection of neutral and ionic fragments using a time and position resolved coincidence technique that reveals whether an ionic photofragment is associated with one or more neutral fragments. In the case of a sequential dissociation, both fragmentation channels are identified as well as their time ordering.
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Affiliation(s)
- V Lepère
- Laboratoire des Collisions Atomiques et Moléculaires, (CNRS UMR C8625), Bât. 351, Université Paris-Sud, 91405, Orsay Cedex, France
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47
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Remaut K, Lucas B, Braeckmans K, Demeester J, De Smedt SC. Pegylation of liposomes favours the endosomal degradation of the delivered phosphodiester oligonucleotides. J Control Release 2006; 117:256-66. [PMID: 17188777 DOI: 10.1016/j.jconrel.2006.10.029] [Citation(s) in RCA: 103] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2006] [Revised: 10/18/2006] [Accepted: 10/24/2006] [Indexed: 11/19/2022]
Abstract
Liposomal vesicles have been widely investigated as carriers for the intracellular delivery of oligonucleotides (ONs). To avoid unspecific uptake by the reticulo endothelial system, 'pegylation' of the liposomes, by incorporating polyethyleneglycol (PEG) at the surface, has been an attractive strategy. While pegylation has a clear benefit on the systemic level, one could wonder if pegylation also benefits the delivery efficacy of liposomes at the intracellular level. We compared the intracellular distribution of non-pegylated and pegylated liposomes, with special attention to the integrity of the oligonucleotides they are carrying. After uptake in the cells, the non-pegylated liposomes efficiently escaped from the endosomes thereby releasing phosphodiester oligonucleotides (PO-ONs) in the cytoplasm of the cells. The PO-ONs were however rapidly degraded in the intracellular environment. In contrast to non-pegylated liposomes, pegylated liposomes failed in protecting the PO-ONs they were carrying, leading to rapid degradation of the PO-ONs in the endosomal compartment. Furthermore, the PEG chains inhibited the endosomal escape of the degraded ONs. These intracellular findings explain why pegylated liposomes failed in establishing an antisense effect.
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Affiliation(s)
- K Remaut
- Laboratory of General Biochemistry and Physical Pharmacy, Ghent University, Harelbekestraat 72, 9000 Ghent, Belgium
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48
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Moliton A, Lucas B, Moreau C, Friend RH, François B. Ion implantation in conjugated polymers: Mechanisms for generation of charge carriers. ACTA ACUST UNITED AC 2006. [DOI: 10.1080/01418639408240186] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- A. Moliton
- a Laboratoire d'Electronique de Polymères Sons Faiseaux Ioniques, Faculté des Sciences , Université de Limoges , 123 avenue Albert Thomas, 87060 , Limoges Cedex , France
| | - B. Lucas
- a Laboratoire d'Electronique de Polymères Sons Faiseaux Ioniques, Faculté des Sciences , Université de Limoges , 123 avenue Albert Thomas, 87060 , Limoges Cedex , France
| | - C. Moreau
- a Laboratoire d'Electronique de Polymères Sons Faiseaux Ioniques, Faculté des Sciences , Université de Limoges , 123 avenue Albert Thomas, 87060 , Limoges Cedex , France
| | - R. H. Friend
- b Cavendish Laboratory , Madingley Road, Cambridge , CB3 0HE , England
| | - B. François
- c Institut Charles-Sandron (CRM-EAHP) (CNRS) , 6 rue Boussinguault, 67083 , Strasbourg Cedex , France
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49
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Remaut K, Lucas B, Braeckmans K, Sanders NN, Demeester J, De Smedt SC. Delivery of phosphodiester oligonucleotides: can DOTAP/DOPE liposomes do the trick? Biochemistry 2006; 45:1755-64. [PMID: 16460022 DOI: 10.1021/bi0519755] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [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: 11/28/2022]
Abstract
Delivering phosphodiester ONs (PO-ONs) remains an attractive but challenging goal in antisense therapy. Both in the literature and in our experiments, most cationic liposomes fail in generating an antisense effect with PO-ONs, while they succeed with chemically modified ONs such as phosphothioate ONs (PS-ONs). This work aims to explain the biological activity of PO- and PS-ONs delivered by DOTAP/DOPE liposomes based on a detailed understanding of their cell biological behavior by means of fluorescence correlation spectroscopy and confocal laser scanning microscopy. We conclude that DOTAP/DOPE liposomes are not suited to deliver PO-ONs due to the release of naked PO-ONs in the cytosol at the time of the endosomal escape of the liposomes and the subsequent rapid degradation of the naked PO-ONs. Carriers that would not release the PO-ONs upon endosomal escape but would continue to carry the PO-ONs until they arrive at the target mRNA could therefore be better suited to delivering PO-ONs. In the case of PS-ONs, the ONs are not degraded upon release at the time of the endosomal escape of the liposomes, creating a pool of intact, biologically active PS-ONs and thus making DOTAP/DOPE liposomes mainly suitable for delivering nuclease resistant ONs. However, the cells seemed to display an export pathway for removing intact PS-ONs from the cells, limiting the presence of naked PS-ONs in the nucleus to approximately 8 h following the delivery.
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Affiliation(s)
- K Remaut
- Laboratory of General Biochemistry and Physical Pharmacy, Ghent University, Harelbekestraat 72, 9000 Ghent, Belgium
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50
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Jones M, Bennett J, Gray R, Arya P, Lucas B. Pharmacological management of akathisia in combination with psychological interventions by a mental health nurse consultant. J Psychiatr Ment Health Nurs 2006; 13:26-32. [PMID: 16441390 DOI: 10.1111/j.1365-2850.2006.00908.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The article describes the management of akathisia by a mental health nurse (MHN) prescriber, working in partnership with the patient. A single-case design was used to evaluate this. It highlights three features: first, MHN can safely prescribe psychiatric medication in combination with concordance therapy. Second, the value base underpinning prescribing practice is partnership, honesty and choice for the patient. Finally, the pharmacological mechanism of antipsychotic medication, which contributes towards akathisia, requires further analysis.
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Affiliation(s)
- M Jones
- Hillingdon Primary Care Trust and Buckinghamshire and Chilterns University, Riverside Centre, Uxbridge, UK.
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