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Waters JE, Stevens-Cullinane L, Siebenmann L, Hess J. Recent advances in the development of metal complexes as antibacterial agents with metal-specific modes of action. Curr Opin Microbiol 2023; 75:102347. [PMID: 37467616 DOI: 10.1016/j.mib.2023.102347] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 05/19/2023] [Accepted: 05/23/2023] [Indexed: 07/21/2023]
Abstract
The mounting burden of antimicrobial resistance (AMR) is one of the most concerning threats to public health worldwide. With low economic incentives and a dwindling supply of new drugs in clinical pipelines, more innovative approaches to novel drug design and development are desperately required. Metal-based compounds are rapidly emerging as an alternative to organic drugs, as they have the ability to kill pathogens via metal-specific modes of action. We herein review recent advances in metal-based antibacterial agents, including metal complexes, metal ions and catalytic metallodrugs. The review concludes with a perspective on the rational design of metal-based antibiotics, and how we can exploit their unique properties to tackle AMR.
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Affiliation(s)
- Jessica E Waters
- Biological Inorganic Chemistry Laboratory, The Francis Crick Institute, London NW1 1AT, United Kingdom; Department of Chemistry, King's College London, Britannia House, 7 Trinity Street, London SE1 1DB, United Kingdom
| | - Lars Stevens-Cullinane
- Biological Inorganic Chemistry Laboratory, The Francis Crick Institute, London NW1 1AT, United Kingdom; Department of Chemistry, King's College London, Britannia House, 7 Trinity Street, London SE1 1DB, United Kingdom
| | - Lukas Siebenmann
- Biological Inorganic Chemistry Laboratory, The Francis Crick Institute, London NW1 1AT, United Kingdom; Department of Chemistry, King's College London, Britannia House, 7 Trinity Street, London SE1 1DB, United Kingdom
| | - Jeannine Hess
- Biological Inorganic Chemistry Laboratory, The Francis Crick Institute, London NW1 1AT, United Kingdom; Department of Chemistry, King's College London, Britannia House, 7 Trinity Street, London SE1 1DB, United Kingdom.
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2
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Scorgie F, Lusambili A, Luchters S, Khaemba P, Filippi V, Nakstad B, Hess J, Birch C, Kovats S, Chersich MF. "Mothers get really exhausted!" The lived experience of pregnancy in extreme heat: Qualitative findings from Kilifi, Kenya. Soc Sci Med 2023; 335:116223. [PMID: 37725839 DOI: 10.1016/j.socscimed.2023.116223] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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: 05/19/2023] [Revised: 09/01/2023] [Accepted: 09/04/2023] [Indexed: 09/21/2023]
Abstract
Heat exposure in pregnancy is associated with a range of adverse health and wellbeing outcomes, yet research on the lived experience of pregnancy in high temperatures is lacking. We conducted qualitative research in 2021 in two communities in rural Kilifi County, Kenya, a tropical savannah area currently experiencing severe drought. Pregnant and postpartum women, their male spouses and mothers-in-law, community health volunteers, and local health and environment stakeholders were interviewed or participated in focus group discussions. Pregnant women described symptoms that are classically regarded as heat exhaustion, including dizziness, fatigue, dehydration, insomnia, and irritability. They interpreted heat-related tachycardia as signalling hypertension and reported observing more miscarriages and preterm births in the heat. Pregnancy is conceptualised locally as a 'normal' state of being, and women continue to perform physically demanding household chores in the heat, even when pregnant. Women reported little support from family members to reduce their workload at this time, reflecting their relative lack of autonomy within the household, but also potentially the 'normalisation' of heat in these communities. Climate change risk reduction strategies for pregnant women in low-resource settings need to be cognisant of local household gender dynamics that constrain women's capacity to avoid heat exposures.
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Affiliation(s)
- F Scorgie
- Wits Reproductive Health and HIV Institute (Wits RHI), Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.
| | - A Lusambili
- Institute for Human Development, Aga Khan University, Nairobi, Kenya; Environmental Center, Leadership and Governance HUB, School of Business, Africa International University, Kenya
| | - S Luchters
- Institute for Human Development, Aga Khan University, Nairobi, Kenya; Centre for Sexual Health and HIV AIDS Research (CeSHHAR), Harare, Zimbabwe; Liverpool School of Tropical Medicine (LSTM), Liverpool, UK
| | - P Khaemba
- Institute for Human Development, Aga Khan University, Nairobi, Kenya
| | - V Filippi
- The Centre for Maternal, Adolescent, Reproductive, & Child Health (MARCH), London School of Hygiene & Tropical Medicine, London, UK
| | - B Nakstad
- Division of Pediatric and Adolescent Medicine, Institute of Clinical Medicine, University of Oslo, Oslo, Norway; Department of Pediatric and Adolescent Health, University of Botswana, Gaborone, Botswana
| | - J Hess
- Emergency Medicine, Environmental & Occupational Health Sciences, and Global Health, University of Washington, USA
| | - C Birch
- School of Earth and Environment, University of Leeds, UK
| | - S Kovats
- Centre on Climate Change and Planetary Health, London School of Hygiene & Tropical Medicine, London, UK
| | - M F Chersich
- Wits Reproductive Health and HIV Institute (Wits RHI), Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
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Rees TW, Ho P, Hess J. Recent Advances in Metal Complexes for Antimicrobial Photodynamic Therapy. Chembiochem 2023; 24:e202200796. [PMID: 36917084 PMCID: PMC10947373 DOI: 10.1002/cbic.202200796] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [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: 12/29/2022] [Revised: 03/13/2023] [Accepted: 03/14/2023] [Indexed: 03/16/2023]
Abstract
Antimicrobial resistance (AMR) is a growing global problem with more than 1 million deaths due to AMR infection in 2019 alone. New and innovative therapeutics are required to overcome this challenge. Antimicrobial photodynamic therapy (aPDT) is a rapidly growing area of research poised to provide much needed help in the fight against AMR. aPDT works by administering a photosensitizer (PS) that is activated only when irradiated with light, allowing high spatiotemporal control and selectivity. The PS typically generates reactive oxygen species (ROS), which can damage a variety of key biological targets, potentially circumventing existing resistance mechanisms. Metal complexes are well known to display excellent optoelectronic properties, and recent focus has begun to shift towards their application in tackling microbial infections. Herein, we review the last five years of progress in the emerging field of small-molecule metal complex PSs for aPDT.
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Affiliation(s)
- Thomas W. Rees
- The Francis Crick Institute1 Midland RoadLondonNW1 1ATUK
| | - Po‐Yu Ho
- The Francis Crick Institute1 Midland RoadLondonNW1 1ATUK
- Department of ChemistryKing's College LondonBritannia House, 7 Trinity StreetLondonSE1 1DBUK
| | - Jeannine Hess
- The Francis Crick Institute1 Midland RoadLondonNW1 1ATUK
- Department of ChemistryKing's College LondonBritannia House, 7 Trinity StreetLondonSE1 1DBUK
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Leontidou T, Yu Z, Hess J, Geisler K, Smith AG, Coyne A, Abell C. Microfluidic preparation of composite hydrogel microparticles for the staining of microalgal cells. Colloids Surf B Biointerfaces 2022; 221:113026. [DOI: 10.1016/j.colsurfb.2022.113026] [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] [Received: 09/15/2022] [Revised: 11/07/2022] [Accepted: 11/14/2022] [Indexed: 11/17/2022]
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Schoffer AK, Bittner AK, Hess J, Kimmig R, Hoffmann O. Complications and satisfaction in transwomen receiving breast augmentation: short- and long-term outcomes. Arch Gynecol Obstet 2022; 305:1517-1524. [PMID: 35597817 PMCID: PMC9166844 DOI: 10.1007/s00404-022-06603-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Accepted: 04/27/2022] [Indexed: 11/26/2022]
Abstract
BACKGROUND To achieve long-term improvement in health care of transgender women, it is necessary to analyze all aspects of gender-confirming surgery, especially the relation of risks and benefits occurring in these procedures. While there are many studies presenting data on the urologic part of the surgery, there are just few data about complications and satisfaction with breast augmentation. METHODS This is a retrospective study using parts of the BREAST-Q Augmentation Questionnaire and additional questions for symptoms of capsular contracture and re-operations and analyzing archived patient records of all transwomen which were operated at University Hospital Essen from 2007 to 2020. RESULTS 99 of these 159 patients (62%) completed the questionnaire after a median time of 4 years after surgery. Breast augmentation led to re-operations due to complications in 5%. The rate of capsular contracture (Baker Grad III-IV) in this population was 3%. Most patients (75%) rated high scores of satisfaction with outcome (more than 70 points) and denied to have restrictions due to their implants in their everyday life. All patients reported an improvement in their quality of life owing to breast augmentation. CONCLUSION Breast augmentation by inserting silicon implants is a safe surgical procedure which takes an important part in reducing gender dysphoria.
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Affiliation(s)
- A K Schoffer
- Department of Gynecology and Obstetrics, University Hospital Essen, Hufelandstraße 55, 45147, Essen, Germany.
| | - A K Bittner
- Department of Gynecology and Obstetrics, University Hospital Essen, Hufelandstraße 55, 45147, Essen, Germany
| | - J Hess
- Department of Urology, University Hospital Essen, Essen, Germany
| | - R Kimmig
- Department of Gynecology and Obstetrics, University Hospital Essen, Hufelandstraße 55, 45147, Essen, Germany
| | - O Hoffmann
- Department of Gynecology and Obstetrics, University Hospital Essen, Hufelandstraße 55, 45147, Essen, Germany
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Thomsen A, Aldrian C, Luka B, Hornhardt S, Gomolka M, Moertl S, Hess J, Zitzelsberger H, Heider T, Schlueter N, Rau S, Monroy Ordonez B, Schäfer H, Rücker G, Henke M. Biopsy-Derived Oral Keratinocytes – a Model to Potentially Test for Oral Mucosa Radiation Sensitivity. Clin Transl Radiat Oncol 2022; 34:51-56. [PMID: 35345866 PMCID: PMC8956846 DOI: 10.1016/j.ctro.2022.03.007] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 03/13/2022] [Accepted: 03/14/2022] [Indexed: 11/29/2022] Open
Abstract
Human oral keratinocytes – the key players in radiation mucositis in head and neck cancer treatment – are established ex vivo from patient-derived micro-biopsies. Individual radiosensitivity of primary oral keratinocytes is measured by a novel assay for cellular proliferation and spreading. The keratinocyte model also supports classical functional assays such as clonogenic survival and DNA double strand repair.
Purpose To establish stable in vitro growth of keratinocytes from very small biopsy specimens and successfully apply new test systems to determine their radiosensitivity. Materials and Methods Oral mucosa biopsies (diameter: 1.7 mm) from 15 subjects were immobilized with custom-made cups onto culture plates. Outgrowing cells were tested for cytokeratin 5/14 and Ki67, expanded, radiated at different doses, and seeded onto circumscribed areas before being allowed to spread centrifugally. In this newly developed spreading assay, cell-covered areas were measured by image analysis. For statistical analysis, a linear mixed regression model was used; additionally, results were correlated to the radiation dose applied. Colony forming efficiency (CFE) was used to validate the results. DNA damage repair was analysed by gammaH2AX and 53BP1 foci quantification using immunofluorescence microscopy 24 h and 96 h after irradiation. Results Stable keratinocyte growth continued for up to 7 weeks in 14 biopsies. Cells spread reliably from an initial 16.6 mm2 up to a median of 119.2 mm2 (range: 54.4–290). Radiated cells spread to only 100.7 mm2 (2 Gy; range: 55.3–266.7); 73.2 mm2 (4 Gy; 15–240.4); 47 mm2 (6 Gy; 2–111.9), and 22.7 mm2 (8 Gy; 0–80). Similarly, CFE decreased from 0.223 (0 Gy) to 0.0028 (8 Gy). Using an individual donor as a random factor, cell spread correlated with CFE, where radiation dose was the main driver (decrease by 0.50, adjusted for area). Upon irradiation with 6 Gy, radiation-induced DNA damage was increased after 24 h in all samples, and even after 96 h in 5 out of 7 samples, as detected by a higher number of gammaH2AX/53BP1 foci in irradiated cells (mean 3.7 for 24 h; mean 0.6 for 96 h). Conclusion In vitro propagation of keratinocytes derived from a small biopsy is feasible. Radiation impairs cellular migration and proliferation, and the newly described spreading assay allows ranking for cellular radioresistance. The keratinocyte model also supports classical functional assays such as clonogenic survival and DNA double strand repair. The clinical relevance awaits upcoming investigations.
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Affiliation(s)
- A.R. Thomsen
- Department of Radiation Oncology, University Medical Center, University of Freiburg, Freiburg/Breisgau, Germany
- German Cancer Consortium (DKTK) Partner Site Freiburg, German Cancer Research Center (dkfz), Heidelberg, Germany
- Corresponding author at: Department of Radiation Oncology, University Medical Center, University of Freiburg, Freiburg/Breisgau, Germany.
| | - C. Aldrian
- Department of Radiation Oncology, University Medical Center, University of Freiburg, Freiburg/Breisgau, Germany
- German Cancer Consortium (DKTK) Partner Site Freiburg, German Cancer Research Center (dkfz), Heidelberg, Germany
| | - B. Luka
- Division for Cariology, Department of Operative Dentistry and Periodontology, Center for Dental Medicine, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Germany
| | - S. Hornhardt
- Federal Office for Radiation Protection, Ingolstädter Landstr. 1, 85764 Oberschleißheim, Germany
| | - M. Gomolka
- Federal Office for Radiation Protection, Ingolstädter Landstr. 1, 85764 Oberschleißheim, Germany
| | - S. Moertl
- Federal Office for Radiation Protection, Ingolstädter Landstr. 1, 85764 Oberschleißheim, Germany
| | - J. Hess
- Research Unit Radiation Cytogenetics, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, Neuherberg, Germany
- Clinical Cooperation Group “Personalized Radiotherapy in Head and Neck Cancer”, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, Neuherberg, Germany
- Department of Radiation Oncology, University Hospital, LMU Munich, Munich, Germany
| | - H. Zitzelsberger
- Research Unit Radiation Cytogenetics, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, Neuherberg, Germany
| | - T. Heider
- Department of Radiation Oncology, University Hospital, LMU Munich, Munich, Germany
| | - N. Schlueter
- Division for Cariology, Department of Operative Dentistry and Periodontology, Center for Dental Medicine, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Germany
| | - S. Rau
- Division for Cariology, Department of Operative Dentistry and Periodontology, Center for Dental Medicine, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Germany
| | - B. Monroy Ordonez
- Department of Radiation Oncology, University Medical Center, University of Freiburg, Freiburg/Breisgau, Germany
- German Cancer Consortium (DKTK) Partner Site Freiburg, German Cancer Research Center (dkfz), Heidelberg, Germany
| | - H. Schäfer
- Department of Radiation Oncology, University Medical Center, University of Freiburg, Freiburg/Breisgau, Germany
- German Cancer Consortium (DKTK) Partner Site Freiburg, German Cancer Research Center (dkfz), Heidelberg, Germany
| | - G. Rücker
- Institute for Medical Biometry and Statistics, Medical Center – University of Freiburg, Germany
| | - M. Henke
- Department of Radiation Oncology, University Medical Center, University of Freiburg, Freiburg/Breisgau, Germany
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Acebrón-García-de-Eulate M, Mayol-Llinàs J, Holland MTO, Kim SY, Brown KP, Marchetti C, Hess J, Di Pietro O, Mendes V, Abell C, Floto RA, Coyne AG, Blundell TL. Discovery of Novel Inhibitors of Uridine Diphosphate- N-Acetylenolpyruvylglucosamine Reductase (MurB) from Pseudomonas aeruginosa, an Opportunistic Infectious Agent Causing Death in Cystic Fibrosis Patients. J Med Chem 2022; 65:2149-2173. [PMID: 35080396 PMCID: PMC7614804 DOI: 10.1021/acs.jmedchem.1c01684] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Pseudomonas aeruginosa is of major concern for cystic fibrosis patients where this infection can be fatal. With the emergence of drug-resistant strains, there is an urgent need to develop novel antibiotics against P. aeruginosa. MurB is a promising target for novel antibiotic development as it is involved in the cell wall biosynthesis. MurB has been shown to be essential in P. aeruginosa, and importantly, no MurB homologue exists in eukaryotic cells. A fragment-based drug discovery approach was used to target Pa MurB. This led to the identification of a number of fragments, which were shown to bind to MurB. One fragment, a phenylpyrazole scaffold, was shown by ITC to bind with an affinity of Kd = 2.88 mM (LE 0.23). Using a structure guided approach, different substitutions were synthesized and the initial fragment was optimized to obtain a small molecule with Kd = 3.57 μM (LE 0.35).
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Affiliation(s)
| | - Joan Mayol-Llinàs
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
| | - Matthew T O Holland
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
| | - So Yeon Kim
- Department of Biochemistry, University of Cambridge, Tennis Court Road, Cambridge CB2 1GA, U.K
| | - Karen P Brown
- Molecular Immunity Unit, Department of Medicine, MRC Laboratory of Molecular Biology, University of Cambridge, Francis Crick Avenue, Cambridge Biomedical Campus, Cambridge CB2 0QH, U.K.,Cambridge Centre for Lung Infection, Royal Papworth Hospital, Cambridge, CB23 3RE, UK
| | - Chiara Marchetti
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
| | - Jeannine Hess
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
| | - Ornella Di Pietro
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
| | - Vitor Mendes
- Department of Biochemistry, University of Cambridge, Tennis Court Road, Cambridge CB2 1GA, U.K
| | - Chris Abell
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
| | - R Andres Floto
- Molecular Immunity Unit, Department of Medicine, MRC Laboratory of Molecular Biology, University of Cambridge, Francis Crick Avenue, Cambridge Biomedical Campus, Cambridge CB2 0QH, U.K.,Cambridge Centre for Lung Infection, Royal Papworth Hospital, Cambridge, CB23 3RE, UK
| | - Anthony G Coyne
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
| | - Tom L Blundell
- Department of Biochemistry, University of Cambridge, Tennis Court Road, Cambridge CB2 1GA, U.K
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8
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Rubbiani R, Weil T, Tocci N, Mastrobuoni L, Jeger S, Moretto M, Ng J, Lin Y, Hess J, Ferrari S, Kaech A, Young L, Spencer J, Moore AL, Cariou K, Renga G, Pariano M, Romani L, Gasser G. In vivo active organometallic-containing antimycotic agents. RSC Chem Biol 2021; 2:1263-1273. [PMID: 34458840 PMCID: PMC8341145 DOI: 10.1039/d1cb00123j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 07/07/2021] [Indexed: 11/25/2022] Open
Abstract
Fungal infections represent a global problem, notably for immunocompromised patients in hospital, COVID-19 patient wards and care home settings, and the ever-increasing emergence of multidrug resistant fungal strains is a sword of Damocles hanging over many healthcare systems. Azoles represent the mainstay of antifungal drugs, and their mode of action involves the binding mode of these molecules to the fungal lanosterol 14α-demethylase target enzyme. In this study, we have prepared and characterized four novel organometallic derivatives of the frontline antifungal drug fluconazole (1a-4a). Very importantly, enzyme inhibition and chemogenomic profiling demonstrated that lanosterol 14α-demethylase, as for fluconazole, was the main target of the most active compound of the series, (N-(ferrocenylmethyl)-2-(2,4-difluorophenyl)-2-hydroxy-N-methyl-3-(1H-1,2,4-triazol-1-yl)propan-1-aminium chloride, 2a). Transmission electron microscopy (TEM) studies suggested that 2a induced a loss in cell wall integrity as well as intracellular features ascribable to late apoptosis or necrosis. The impressive activity of 2a was further confirmed on clinical isolates, where antimycotic potency up to 400 times higher than fluconazole was observed. Also, 2a showed activity towards azole-resistant strains. This finding is very interesting since the primary target of 2a is the same as that of fluconazole, emphasizing the role played by the organometallic moiety. In vivo experiments in a mice model of Candida infections revealed that 2a reduced the fungal growth and dissemination but also ameliorated immunopathology, a finding suggesting that 2a is active in vivo with added activity on the host innate immune response.
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Affiliation(s)
- Riccardo Rubbiani
- Department of Chemistry, University of Zurich Winterthurerstrasse 190 8057 Zurich Switzerland
| | - Tobias Weil
- Department of Food Quality and Nutrition, Research and Innovation Centre, Fondazione Edmund Mach Via E. Mach 1 38010 San Michele all'Adige Italy
| | - Noemi Tocci
- Department of Food Quality and Nutrition, Research and Innovation Centre, Fondazione Edmund Mach Via E. Mach 1 38010 San Michele all'Adige Italy
| | - Luciano Mastrobuoni
- Department of Chemistry, University of Zurich Winterthurerstrasse 190 8057 Zurich Switzerland
| | - Severin Jeger
- Department of Chemistry, University of Zurich Winterthurerstrasse 190 8057 Zurich Switzerland
| | - Marco Moretto
- Unit of Computational Biology, Research and Innovation Centre, Fondazione Edmund Mach Via E. Mach 1 38010 San Michele all'Adige Italy
| | - James Ng
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, Laboratory for Inorganic Chemical Biology 75005 Paris France
| | - Yan Lin
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, Laboratory for Inorganic Chemical Biology 75005 Paris France
| | - Jeannine Hess
- Department of Chemistry, University of Zurich Winterthurerstrasse 190 8057 Zurich Switzerland
| | - Stefano Ferrari
- Institute of Molecular Cancer Research, University of Zurich Winterthurerstrasse 190 8057 Zurich Switzerland
| | - Andres Kaech
- Center for Microscopy and Image Analysis, University of Zurich Winterthurerstrasse 190 8057 Zurich Switzerland
| | - Luke Young
- Department of Chemistry, School of Life Sciences, University of Sussex Brighton BN1 9QJ UK
| | - John Spencer
- Department of Chemistry, School of Life Sciences, University of Sussex Brighton BN1 9QJ UK
| | - Anthony L Moore
- Biochemistry & Biomedicine, School of Life Sciences, University of Sussex Brighton BN1 9QG UK
| | - Kevin Cariou
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, Laboratory for Inorganic Chemical Biology 75005 Paris France
| | - Giorgia Renga
- University of Perugia, Department of Medicine and Surgery, Piazzale Lucio Severi - Polo Unico Sant'Andrea delle Fratte 06132 Perugia Italy
| | - Marilena Pariano
- University of Perugia, Department of Medicine and Surgery, Piazzale Lucio Severi - Polo Unico Sant'Andrea delle Fratte 06132 Perugia Italy
| | - Luigina Romani
- University of Perugia, Department of Medicine and Surgery, Piazzale Lucio Severi - Polo Unico Sant'Andrea delle Fratte 06132 Perugia Italy
| | - Gilles Gasser
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, Laboratory for Inorganic Chemical Biology 75005 Paris France
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Marschner S, Maihöfer C, Späth R, Kienlechner N, Schüttrumpf L, Baumeister P, Hess J, Zitzelsberger H, Friedl A, Ganswindt U, Belka C, Walter F. PO-0976 Adjuvant (chemo)radiotherapy in HNSCC patients: Outcome prediction with comorbidity risk scores. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)07427-2] [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]
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10
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Abstract
The occurrence of drug-resistant bacteria is drastically rising and new and effective antibiotic classes are urgently needed. However, most of the compounds in development are minor modifications of previously used drugs to which bacteria can easily develop resistance. The investigation of inorganic and organometallic compounds as antibiotics is an alternative approach that holds great promises due to the ability of such molecules to trigger metal-specific mechanisms of action, which results in lethal consequences for pathogens. In this review, a selection of concepts to rationally design inorganic and organometallic antibiotics is discussed, highlighting their advantages by comparing them to classical drug discovery programmes. The review concludes with a short perspective for the future of antibiotic drug development and the role metal-based compounds will play in the field.
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Affiliation(s)
- Jeannine Hess
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
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11
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Evans JC, Murugesan D, Post JM, Mendes V, Wang Z, Nahiyaan N, Lynch SL, Thompson S, Green SR, Ray PC, Hess J, Spry C, Coyne AG, Abell C, Boshoff HIM, Wyatt PG, Rhee KY, Blundell TL, Barry CE, Mizrahi V. Targeting Mycobacterium tuberculosis CoaBC through Chemical Inhibition of 4'-Phosphopantothenoyl-l-cysteine Synthetase (CoaB) Activity. ACS Infect Dis 2021; 7:1666-1679. [PMID: 33939919 PMCID: PMC8205227 DOI: 10.1021/acsinfecdis.0c00904] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Coenzyme A (CoA) is a ubiquitous cofactor present in all living cells and estimated to be required for up to 9% of intracellular enzymatic reactions. Mycobacterium tuberculosis (Mtb) relies on its own ability to biosynthesize CoA to meet the needs of the myriad enzymatic reactions that depend on this cofactor for activity. As such, the pathway to CoA biosynthesis is recognized as a potential source of novel tuberculosis drug targets. In prior work, we genetically validated CoaBC as a bactericidal drug target in Mtb in vitro and in vivo. Here, we describe the identification of compound 1f, a small molecule inhibitor of the 4'-phosphopantothenoyl-l-cysteine synthetase (PPCS; CoaB) domain of the bifunctional Mtb CoaBC, and show that this compound displays on-target activity in Mtb. Compound 1f was found to inhibit CoaBC uncompetitively with respect to 4'-phosphopantothenate, the substrate for the CoaB-catalyzed reaction. Furthermore, metabolomic profiling of wild-type Mtb H37Rv following exposure to compound 1f produced a signature consistent with perturbations in pantothenate and CoA biosynthesis. As the first report of a direct small molecule inhibitor of Mtb CoaBC displaying target-selective whole-cell activity, this study confirms the druggability of CoaBC and chemically validates this target.
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Affiliation(s)
- Joanna C. Evans
- MRC/NHLS/UCT
Molecular Mycobacteriology Research Unit & DST/NRF Centre of Excellence
for Biomedical TB Research & Wellcome Centre for Infectious Diseases
Research in Africa, Institute of Infectious Disease and Molecular
Medicine and Department of Pathology, Faculty of Health Sciences, University of Cape Town, Anzio Road, Observatory 7925, South Africa,
| | - Dinakaran Murugesan
- Drug
Discovery Unit, College of Life Sciences, University of Dundee, Dow Street, Dundee DD1
5EH, Scotland, U.K.
| | - John M. Post
- Drug
Discovery Unit, College of Life Sciences, University of Dundee, Dow Street, Dundee DD1
5EH, Scotland, U.K.
| | - Vitor Mendes
- Department
of Biochemistry, University of Cambridge, 80 Tennis Court Road, Cambridge CB2 1GA, U.K.
| | - Zhe Wang
- Department
of Microbiology and Immunology, Weill Cornell
Medical College, New York, New York 10065, United States
| | - Navid Nahiyaan
- Department
of Microbiology and Immunology, Weill Cornell
Medical College, New York, New York 10065, United States
| | - Sasha L. Lynch
- MRC/NHLS/UCT
Molecular Mycobacteriology Research Unit & DST/NRF Centre of Excellence
for Biomedical TB Research & Wellcome Centre for Infectious Diseases
Research in Africa, Institute of Infectious Disease and Molecular
Medicine and Department of Pathology, Faculty of Health Sciences, University of Cape Town, Anzio Road, Observatory 7925, South Africa
| | - Stephen Thompson
- Drug
Discovery Unit, College of Life Sciences, University of Dundee, Dow Street, Dundee DD1
5EH, Scotland, U.K.
| | - Simon R. Green
- Drug
Discovery Unit, College of Life Sciences, University of Dundee, Dow Street, Dundee DD1
5EH, Scotland, U.K.
| | - Peter C. Ray
- Drug
Discovery Unit, College of Life Sciences, University of Dundee, Dow Street, Dundee DD1
5EH, Scotland, U.K.
| | - Jeannine Hess
- Yusuf
Hamied Department of Chemistry, University
of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K.
| | - Christina Spry
- Yusuf
Hamied Department of Chemistry, University
of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K.
| | - Anthony G. Coyne
- Yusuf
Hamied Department of Chemistry, University
of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K.
| | - Chris Abell
- Yusuf
Hamied Department of Chemistry, University
of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K.
| | - Helena I. M. Boshoff
- Tuberculosis
Research Section, Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Disease,
National Institutes of Health, 9000 Rockville Pike, Bethesda, Maryland 20892, United States
| | - Paul G. Wyatt
- Drug
Discovery Unit, College of Life Sciences, University of Dundee, Dow Street, Dundee DD1
5EH, Scotland, U.K.
| | - Kyu Y. Rhee
- Department
of Microbiology and Immunology, Weill Cornell
Medical College, New York, New York 10065, United States
| | - Tom L. Blundell
- Department
of Biochemistry, University of Cambridge, 80 Tennis Court Road, Cambridge CB2 1GA, U.K.
| | - Clifton E. Barry
- MRC/NHLS/UCT
Molecular Mycobacteriology Research Unit & DST/NRF Centre of Excellence
for Biomedical TB Research & Wellcome Centre for Infectious Diseases
Research in Africa, Institute of Infectious Disease and Molecular
Medicine and Department of Pathology, Faculty of Health Sciences, University of Cape Town, Anzio Road, Observatory 7925, South Africa,Tuberculosis
Research Section, Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Disease,
National Institutes of Health, 9000 Rockville Pike, Bethesda, Maryland 20892, United States
| | - Valerie Mizrahi
- MRC/NHLS/UCT
Molecular Mycobacteriology Research Unit & DST/NRF Centre of Excellence
for Biomedical TB Research & Wellcome Centre for Infectious Diseases
Research in Africa, Institute of Infectious Disease and Molecular
Medicine and Department of Pathology, Faculty of Health Sciences, University of Cape Town, Anzio Road, Observatory 7925, South Africa,
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12
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Best S, Hess J, Souza-Fonseca Guimaraes F, Cursons J, Kersbergen A, You Y, Ng J, Davis M, Leong T, Irving L, Ritchie M, Steinfort D, Huntington N, Sutherland K. FP10.02 Investigating the Immunophenotype of Small Cell Lung Cancer to Improve Immunotherapeutic Targeting. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.124] [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: 11/17/2022]
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13
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Best S, Hess J, Souza-Fonseca Guimaraes F, Kersbergen A, Hyslop S, Rautela J, Huntington N, Sutherland K. MA13.04 Harnessing Natural Killer Cells to Treat Metastatic Small Cell Lung Cancer. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.266] [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: 10/21/2022]
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14
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Mendes V, Green SR, Evans JC, Hess J, Blaszczyk M, Spry C, Bryant O, Cory-Wright J, Chan DSH, Torres PHM, Wang Z, Nahiyaan N, O’Neill S, Damerow S, Post J, Bayliss T, Lynch SL, Coyne AG, Ray PC, Abell C, Rhee KY, Boshoff HIM, Barry CE, Mizrahi V, Wyatt PG, Blundell TL. Inhibiting Mycobacterium tuberculosis CoaBC by targeting an allosteric site. Nat Commun 2021; 12:143. [PMID: 33420031 PMCID: PMC7794376 DOI: 10.1038/s41467-020-20224-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Accepted: 11/18/2020] [Indexed: 02/02/2023] Open
Abstract
Coenzyme A (CoA) is a fundamental co-factor for all life, involved in numerous metabolic pathways and cellular processes, and its biosynthetic pathway has raised substantial interest as a drug target against multiple pathogens including Mycobacterium tuberculosis. The biosynthesis of CoA is performed in five steps, with the second and third steps being catalysed in the vast majority of prokaryotes, including M. tuberculosis, by a single bifunctional protein, CoaBC. Depletion of CoaBC was found to be bactericidal in M. tuberculosis. Here we report the first structure of a full-length CoaBC, from the model organism Mycobacterium smegmatis, describe how it is organised as a dodecamer and regulated by CoA thioesters. A high-throughput biochemical screen focusing on CoaB identified two inhibitors with different chemical scaffolds. Hit expansion led to the discovery of potent and selective inhibitors of M. tuberculosis CoaB, which we show to bind to a cryptic allosteric site within CoaB.
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Affiliation(s)
- Vitor Mendes
- grid.5335.00000000121885934Department of Biochemistry, University of Cambridge, 80 Tennis Court Road, Cambridge, CB2 1GA UK
| | - Simon R. Green
- grid.8241.f0000 0004 0397 2876Drug Discovery Unit, College of Life Sciences, University of Dundee, Dow Street, Dundee, DD1 5EH Scotland UK
| | - Joanna C. Evans
- grid.7836.a0000 0004 1937 1151MRC/NHLS/UCT Molecular Mycobacteriology Research Unit & DST/NRF Centre of Excellence for Biomedical TB Research & Wellcome Centre for Infectious Diseases Research in Africa, Institute of Infectious Disease and Molecular Medicine and Department of Pathology, Faculty of Health Sciences, University of Cape Town, Anzio Road, Observatory 7925, Cape Town, South Africa
| | - Jeannine Hess
- grid.5335.00000000121885934Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW UK
| | - Michal Blaszczyk
- grid.5335.00000000121885934Department of Biochemistry, University of Cambridge, 80 Tennis Court Road, Cambridge, CB2 1GA UK
| | - Christina Spry
- grid.5335.00000000121885934Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW UK
| | - Owain Bryant
- grid.5335.00000000121885934Department of Biochemistry, University of Cambridge, 80 Tennis Court Road, Cambridge, CB2 1GA UK
| | - James Cory-Wright
- grid.5335.00000000121885934Department of Biochemistry, University of Cambridge, 80 Tennis Court Road, Cambridge, CB2 1GA UK
| | - Daniel S-H. Chan
- grid.5335.00000000121885934Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW UK
| | - Pedro H. M. Torres
- grid.5335.00000000121885934Department of Biochemistry, University of Cambridge, 80 Tennis Court Road, Cambridge, CB2 1GA UK
| | - Zhe Wang
- grid.5386.8000000041936877XDivision of Infectious Diseases, Weill Department of Medicine, Weill Cornell Medical College, New York, NY 10065 USA
| | - Navid Nahiyaan
- grid.5386.8000000041936877XDivision of Infectious Diseases, Weill Department of Medicine, Weill Cornell Medical College, New York, NY 10065 USA
| | - Sandra O’Neill
- grid.8241.f0000 0004 0397 2876Drug Discovery Unit, College of Life Sciences, University of Dundee, Dow Street, Dundee, DD1 5EH Scotland UK
| | - Sebastian Damerow
- grid.8241.f0000 0004 0397 2876Drug Discovery Unit, College of Life Sciences, University of Dundee, Dow Street, Dundee, DD1 5EH Scotland UK
| | - John Post
- grid.8241.f0000 0004 0397 2876Drug Discovery Unit, College of Life Sciences, University of Dundee, Dow Street, Dundee, DD1 5EH Scotland UK
| | - Tracy Bayliss
- grid.8241.f0000 0004 0397 2876Drug Discovery Unit, College of Life Sciences, University of Dundee, Dow Street, Dundee, DD1 5EH Scotland UK
| | - Sasha L. Lynch
- grid.7836.a0000 0004 1937 1151MRC/NHLS/UCT Molecular Mycobacteriology Research Unit & DST/NRF Centre of Excellence for Biomedical TB Research & Wellcome Centre for Infectious Diseases Research in Africa, Institute of Infectious Disease and Molecular Medicine and Department of Pathology, Faculty of Health Sciences, University of Cape Town, Anzio Road, Observatory 7925, Cape Town, South Africa
| | - Anthony G. Coyne
- grid.5335.00000000121885934Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW UK
| | - Peter C. Ray
- grid.8241.f0000 0004 0397 2876Drug Discovery Unit, College of Life Sciences, University of Dundee, Dow Street, Dundee, DD1 5EH Scotland UK
| | - Chris Abell
- grid.5335.00000000121885934Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW UK
| | - Kyu Y. Rhee
- grid.5386.8000000041936877XDivision of Infectious Diseases, Weill Department of Medicine, Weill Cornell Medical College, New York, NY 10065 USA
| | - Helena I. M. Boshoff
- grid.419681.30000 0001 2164 9667Tuberculosis Research Section, Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Disease, National Institutes of Health, 9000 Rockville Pike, Bethesda, MD 20892 USA
| | - Clifton E. Barry
- grid.7836.a0000 0004 1937 1151MRC/NHLS/UCT Molecular Mycobacteriology Research Unit & DST/NRF Centre of Excellence for Biomedical TB Research & Wellcome Centre for Infectious Diseases Research in Africa, Institute of Infectious Disease and Molecular Medicine and Department of Pathology, Faculty of Health Sciences, University of Cape Town, Anzio Road, Observatory 7925, Cape Town, South Africa ,grid.419681.30000 0001 2164 9667Tuberculosis Research Section, Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Disease, National Institutes of Health, 9000 Rockville Pike, Bethesda, MD 20892 USA
| | - Valerie Mizrahi
- grid.7836.a0000 0004 1937 1151MRC/NHLS/UCT Molecular Mycobacteriology Research Unit & DST/NRF Centre of Excellence for Biomedical TB Research & Wellcome Centre for Infectious Diseases Research in Africa, Institute of Infectious Disease and Molecular Medicine and Department of Pathology, Faculty of Health Sciences, University of Cape Town, Anzio Road, Observatory 7925, Cape Town, South Africa
| | - Paul G. Wyatt
- grid.8241.f0000 0004 0397 2876Drug Discovery Unit, College of Life Sciences, University of Dundee, Dow Street, Dundee, DD1 5EH Scotland UK
| | - Tom L. Blundell
- grid.5335.00000000121885934Department of Biochemistry, University of Cambridge, 80 Tennis Court Road, Cambridge, CB2 1GA UK
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15
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Fleischmann D, Unger K, Ruf V, Heider T, Hess J, Drexler G, Herms J, Thon N, Kreth F, Tonn J, Zitzelsberger H, Lauber K, Belka C, Niyazi M. PH-0359: Blood plasma based risk stratification of glioblastoma patients. Radiother Oncol 2020. [DOI: 10.1016/s0167-8140(21)00383-2] [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]
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16
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Krege S, Hess J, Güldenring A, Richter E, Lederbogen S, Mengel M, Seppel T, Hetkamp M, Küntscher M, Sollenböhmer K, Henkel UM, Möller B, Romer G, Löwenberg H, Riechardt S. Symposium Genderdysphorie. Urologe A 2020; 59:1320-1330. [DOI: 10.1007/s00120-020-01336-0] [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: 10/23/2022]
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17
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Zitzelsberger H, Weber P, Kuenstner A, Hess J, Marschner S, Idel C, Ribbat-Idel J, Walz C, Walch A, Perner S, Unger K, Busch H, Wollenberg B, Belka C. OC-0321: Transcriptional subtypes in primary and recurrent head and neck squamous cell carcinomas. Radiother Oncol 2020. [DOI: 10.1016/s0167-8140(21)00345-5] [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: 10/22/2022]
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18
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Schötz U, Shnayien S, Spörl S, Kinzel L, Maihöfer C, Ganswindt U, Hess J, Unger K, Zitzelsberger H, Klein D, Jendrossek V, Klinger B, Sieber A, Blüthgen N, Belka C, Unkel S, Lauber K. OC-0446: Senescence and associated cytokines are critical drivers of inherent radioresistance in HNSCC. Radiother Oncol 2020. [DOI: 10.1016/s0167-8140(21)00468-0] [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]
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19
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Affiliation(s)
- S. Braude
- Biology Department Washington University St. Louis St. Louis MO USA
| | - J. Hess
- Columbia River Inter‐tribal Fish Commission Porland OR USA
| | - C. Ingram
- San Francisco State University San Francisco CA USA
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20
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Reeves PM, Raju Paul S, Baeten L, Korek SE, Yi Y, Hess J, Sobell D, Scholzen A, Garritsen A, De Groot AS, Moise L, Brauns T, Bowen R, Sluder AE, Poznansky MC. Novel multiparameter correlates of Coxiella burnetii infection and vaccination identified by longitudinal deep immune profiling. Sci Rep 2020; 10:13311. [PMID: 32770104 PMCID: PMC7414860 DOI: 10.1038/s41598-020-69327-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Accepted: 06/05/2020] [Indexed: 12/12/2022] Open
Abstract
Q-fever is a flu-like illness caused by Coxiella burnetii (Cb), a highly infectious intracellular bacterium. There is an unmet need for a safe and effective vaccine for Q-fever. Correlates of immune protection to Cb infection are limited. We proposed that analysis by longitudinal high dimensional immune (HDI) profiling using mass cytometry combined with other measures of vaccination and protection could be used to identify novel correlates of effective vaccination and control of Cb infection. Using a vaccine-challenge model in HLA-DR transgenic mice, we demonstrated significant alterations in circulating T-cell and innate immune populations that distinguished vaccinated from naïve mice within 10 days, and persisted until at least 35 days post-vaccination. Following challenge, vaccinated mice exhibited reduced bacterial burden and splenomegaly, along with distinct effector T-cell and monocyte profiles. Correlation of HDI data to serological and pathological measurements was performed. Our data indicate a Th1-biased response to Cb, consistent with previous reports, and identify Ly6C, CD73, and T-bet expression in T-cell, NK-cell, and monocytic populations as distinguishing features between vaccinated and naïve mice. This study refines the understanding of the integrated immune response to Cb vaccine and challenge, which can inform the assessment of candidate vaccines for Cb.
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Affiliation(s)
- P M Reeves
- Vaccine and Immunotherapy Center, Massachusetts General Hospital, Boston, MA, USA.
| | - S Raju Paul
- Vaccine and Immunotherapy Center, Massachusetts General Hospital, Boston, MA, USA
| | - L Baeten
- Colorado State University, Fort Collins, CO, USA
| | - S E Korek
- Vaccine and Immunotherapy Center, Massachusetts General Hospital, Boston, MA, USA
| | - Y Yi
- Vaccine and Immunotherapy Center, Massachusetts General Hospital, Boston, MA, USA
| | - J Hess
- Vaccine and Immunotherapy Center, Massachusetts General Hospital, Boston, MA, USA
| | - D Sobell
- Vaccine and Immunotherapy Center, Massachusetts General Hospital, Boston, MA, USA
| | - A Scholzen
- InnatOss Laboratories B.V, Oss, The Netherlands
| | - A Garritsen
- InnatOss Laboratories B.V, Oss, The Netherlands
| | - A S De Groot
- EpiVax, Inc, Providence, RI, USA.,Center for Vaccines and Immunology, University of Georgia, Athens, GA, USA
| | - L Moise
- EpiVax, Inc, Providence, RI, USA.,Institute for Immunology and Informatics, Department of Cell and Molecular Biology, University of Rhode Island, Providence, RI, USA
| | - T Brauns
- Vaccine and Immunotherapy Center, Massachusetts General Hospital, Boston, MA, USA
| | - R Bowen
- Colorado State University, Fort Collins, CO, USA
| | - A E Sluder
- Vaccine and Immunotherapy Center, Massachusetts General Hospital, Boston, MA, USA
| | - M C Poznansky
- Vaccine and Immunotherapy Center, Massachusetts General Hospital, Boston, MA, USA.
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21
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Mutreja K, Krietsch J, Hess J, Ursich S, Berti M, Roessler FK, Zellweger R, Patra M, Gasser G, Lopes M. ATR-Mediated Global Fork Slowing and Reversal Assist Fork Traverse and Prevent Chromosomal Breakage at DNA Interstrand Cross-Links. Cell Rep 2019; 24:2629-2642.e5. [PMID: 30184498 PMCID: PMC6137818 DOI: 10.1016/j.celrep.2018.08.019] [Citation(s) in RCA: 82] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 07/26/2018] [Accepted: 08/07/2018] [Indexed: 01/02/2023] Open
Abstract
Interstrand cross-links (ICLs) are toxic DNA lesions interfering with DNA metabolism that are induced by widely used anticancer drugs. They have long been considered absolute roadblocks for replication forks, implicating complex DNA repair processes at stalled or converging replication forks. Recent evidence challenged this view, proposing that single forks traverse ICLs by yet elusive mechanisms. Combining ICL immunolabeling and single-molecule approaches in human cells, we now show that ICL induction leads to global replication fork slowing, involving forks not directly challenged by ICLs. Active fork slowing is linked to rapid recruitment of RAD51 to replicating chromatin and to RAD51/ZRANB3-mediated fork reversal. This global modulation of fork speed and architecture requires ATR activation, promotes single-fork ICL traverse—here, directly visualized by electron microscopy—and prevents chromosomal breakage by untimely ICL processing. We propose that global fork slowing by remodeling provides more time for template repair and promotes bypass of residual lesions, limiting fork-associated processing. Fork slowing and reversal are also observed at forks not directly challenged by ICLs Fork reversal assists ICL traverse and limits DSBs associated with ICL unhooking ICL traverse can be directly visualized in human cells by electron microscopy ATR mediates global fork slowing and reversal upon different genotoxic treatments
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Affiliation(s)
- Karun Mutreja
- Institute of Molecular Cancer Research, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Jana Krietsch
- Institute of Molecular Cancer Research, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Jeannine Hess
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Sebastian Ursich
- Institute of Molecular Cancer Research, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Matteo Berti
- Institute of Molecular Cancer Research, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Fabienne K Roessler
- Institute of Molecular Cancer Research, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland; Center for Microscopy and Image Analysis, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Ralph Zellweger
- Institute of Molecular Cancer Research, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Malay Patra
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Gilles Gasser
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Massimo Lopes
- Institute of Molecular Cancer Research, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland.
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22
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Abstract
Though prostate cancer usually responds to androgen deprivation therapy (ADT) in the beginning, the majority of prostate cancers will develop castration resistance over time. The androgen receptor (AR) pathway is often found to be activated in castration resistant prostate cancer (CRPC). Thus, AR signalling remains a therapeutic target upon the development of CRPC. The term M0CRPC is used when ADT leads to castration resistance and there are no metastases detectable by means of conventional imaging. Until recently, there was no therapeutic standard for this group of patients. With the PROSPER-, SPARTAN- and ARAMIS-studies three large placebo-controlled phase III trials have been published lately that showed a significant benefit in metastasis-free survival in men with M0CRPC and short PSA doubling time (PSADT). The efficacy data are very similar in these studies, meaning that the drugs' safety profiles, final analyses of overall survival and their availability will be more important to help clinicians decide which of these three drugs they use for their patients with M0CRPC.
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Affiliation(s)
- Y Hess-Busch
- Department of Medical Oncology, Kliniken Essen Mitte, Essen, Germany
| | - B Hadaschik
- Department of Urology, University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | - J Hess
- Department of Urology, University Hospital Essen, University Duisburg-Essen, Essen, Germany.
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23
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Krafft U, Tschirdewahn S, Hess J, Harke NN, Hadaschik BA, Nyirády P, Szendröi A, Szücs M, Módos O, Olah C, Székely E, Reis H, Szarvas T. STIP1 Tissue Expression Is Associated with Survival in Chemotherapy-Treated Bladder Cancer Patients. Pathol Oncol Res 2019; 26:1243-1249. [PMID: 31250373 DOI: 10.1007/s12253-019-00689-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Accepted: 06/16/2019] [Indexed: 12/23/2022]
Abstract
To optimize treatment decisions in advanced bladder cancer (BC), we aimed to assess the therapy predictive value of STIP1 with regard to cisplatin therapy. Cisplatin-based chemotherapy represents the standard first-line systemic treatment of advanced bladder cancer. Since novel immunooncologic agents are already available for cisplatin-resistant or ineligible patients, biological markers are needed for the prediction of cisplatin resistance. STIP1 expression was analyzed in paraffin-embedded bladder cancer tissue samples of 98 patients who underwent adjuvant or salvage cisplatin-based chemotherapy by using immunohistochemistry. Furthermore, pre-chemotherapy serum STIP1 concentrations were determined in 48 BC patients by ELISA. Results were correlated with the clinicopathological and follow-up data. Stronger STIP1 nuclear staining was associated with worse OS in both the whole patient group (p = 0.034) and the subgroup of patients who received at least 2 cycles of chemotherapy (p = 0.043). These correlations remained significant also in the multivariable analyses (p = 0.035 and p = 0.040). Stronger STIP1 cytoplasmatic immunostaining correlated with shorter PFS both in the whole cohort (p = 0.045) and in the subgroup of patients who received at least 2 cycles of chemotherapy (p = 0.026). Elevated STIP1 serum levels were associated with older patient's age, but we found no correlation between STIP1 serum levels and patients' outcome. Our results suggest that tissue STIP1 analysis might be used for the prediction of cisplatin-resistance in BC. In contrast, pretreatment STIP1 serum levels showed no predictive value for chemotherapy response and survival.
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Affiliation(s)
- U Krafft
- Department of Urology, West German Cancer Center, University of Duisburg-Essen, University Hospital Essen, Hufelandstr. 55, 45147, Essen, Germany
| | - S Tschirdewahn
- Department of Urology, West German Cancer Center, University of Duisburg-Essen, University Hospital Essen, Hufelandstr. 55, 45147, Essen, Germany
| | - J Hess
- Department of Urology, West German Cancer Center, University of Duisburg-Essen, University Hospital Essen, Hufelandstr. 55, 45147, Essen, Germany
| | - N N Harke
- Department of Urology, West German Cancer Center, University of Duisburg-Essen, University Hospital Essen, Hufelandstr. 55, 45147, Essen, Germany
| | - B A Hadaschik
- Department of Urology, West German Cancer Center, University of Duisburg-Essen, University Hospital Essen, Hufelandstr. 55, 45147, Essen, Germany
| | - P Nyirády
- Department of Urology, Semmelweis University, Budapest, Hungary
| | - A Szendröi
- Department of Urology, Semmelweis University, Budapest, Hungary
| | - M Szücs
- Department of Urology, Semmelweis University, Budapest, Hungary
| | - O Módos
- Department of Urology, Semmelweis University, Budapest, Hungary
| | - C Olah
- Department of Urology, Semmelweis University, Budapest, Hungary
| | - E Székely
- 2nd Department of Pathology, Semmelweis University, Budapest, Hungary
| | - H Reis
- Institute of Pathology, West German Cancer Center, University of Duisburg-Essen, University Hospital Essen, Essen, Germany
| | - Tibor Szarvas
- Department of Urology, West German Cancer Center, University of Duisburg-Essen, University Hospital Essen, Hufelandstr. 55, 45147, Essen, Germany. .,Department of Urology, Semmelweis University, Budapest, Hungary.
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24
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Meilof J, Frohn-Mulder I, Stewart P, Szatmari A, Hess J, Veldhoven C, Smeenk R, Swaak A. Maternal Autoantibodies and Congenital Heart Block: No Evidence for the Existence of a Unique Heart Block-associated Anti-Ro/SS-A Autoantibody Profile. Lupus 2019. [DOI: 10.1177/0961203393002001101] [Citation(s) in RCA: 4] [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: 11/17/2022]
Abstract
One of the rare examples of the transfer of autoimmune disease from mother to (unborn) child is the neonatal lupus syndrome. This syndrome comprises the development of fetal heart disease (congenital heart block) or neonatal skin rash and is specifically associated with maternal anti-Ro/SS-A autoantibodies. Previous studies have suggested that especially maternal autoantibody reactivity against the 52 kDa protein of the Ro/SS-A antigen and/or against the La/SS-B antigen is responsible for the development of congenital heart block (CHB). To determine the CHB-associated antibody response in more detail, we analysed the presence of autoantibodies in sera from mothers of children with isolated heart block. All 14 mothers of children with congenital heart block were positive for anti-Ro/SS-A antibodies. Remarkably, their antibody profile, including recognition of different Ro/SS-A proteins and autoantibody levels against these proteins, did not differ from anti-Ro/SS-A positive mothers of healthy children. In contrast, all 8 anti-Ro/SS-A negative mothers had children with acquired heart block. We conclude from our data that maternal anti-Ro/SS-A antibodies are essential for CHB but that fine analysis of this autoantibody response does not predict the occurrence of CHB.
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Affiliation(s)
- J.F. Meilof
- Department of Autoimmune Diseases, Central Laboratory of the Netherlands Red Cross Blood Transfusion Service, Amsterdam
| | | | - P.A. Stewart
- Department of Gynaecology and Obstetrics, University Hospital, Rotterdam
| | - A. Szatmari
- Department of Cardiology, Sophia Kinderziekenhuis, Rotterdam
| | - J. Hess
- Department of Cardiology, Sophia Kinderziekenhuis, Rotterdam
| | - C.H.A. Veldhoven
- Department of Autoimmune Diseases, Central Laboratory of the Netherlands Red Cross Blood Transfusion Service, Amsterdam
| | - R.J.T. Smeenk
- Department of Autoimmune Diseases, Central Laboratory of the Netherlands Red Cross Blood Transfusion Service, Amsterdam
| | - A.J.G. Swaak
- Department of Rheumatology, Daniel den Hoed Clinic, Rotterdam, The Netherlands
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Hood JE, Behrends CN, Irwin A, Schackman BR, Chan D, Hartfield K, Hess J, Banta-Green C, Whiteside L, Finegood B, Duchin J. The projected costs and benefits of a supervised injection facility in Seattle, WA, USA. Int J Drug Policy 2019; 67:9-18. [PMID: 30802842 DOI: 10.1016/j.drugpo.2018.12.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [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: 05/22/2018] [Revised: 12/06/2018] [Accepted: 12/30/2018] [Indexed: 12/30/2022]
Abstract
BACKGROUND As one strategy to improve the health and survival of people who inject drugs, the King County Heroin & Opioid Addiction Task Force recommended the establishment of supervised injection facilities (SIF) where people can inject drugs in a safe and hygienic environment with clinical supervision. Analyses for other sites have found them to be cost-effective, but it is not clear whether these findings are transferable to other settings. METHODS We utilized local estimates and other data sources deemed appropriate for our setting to implement a mathematical model that assesses the impact of a hypothetical SIF on overdose deaths, non-fatal overdose health service utilization, skin and soft tissue infections, bacterial infections, viral infections, and enrollment in medication assisted treatment (MAT). We estimated the costs and savings that would occur on an annual basis for a small-scale pilot site given current overdose rates, as well as three other scenarios of varying scale and underlying overdose rates. RESULTS Assuming current overdose rates, a hypothetical Seattle SIF in a pilot phase is projected to annually reverse 167 overdoses and prevent 6 overdose deaths, 45 hospitalizations, 90 emergency department visits, and 92 emergency medical service deployments. Additionally, the site would facilitate the enrollment of 41 SIF clients in medication assisted treatment programs. These health benefits correspond to a monetary value of $5,156,019. The annual estimated cost of running the SIF is $1,222,332. The corresponding cost-benefit ratio suggests that the pilot SIF would generate $4.22 for every dollar spent on SIF operational costs. The pilot SIF is projected to save the healthcare system $534,453. If Seattle experienced elevated overdose rates and Seattle SIF program were scaled up, the health benefits and financial value would be considerably greater. CONCLUSION This analysis suggests that a SIF program in Seattle would save lives and result in considerable health benefits and cost savings.
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Affiliation(s)
- J E Hood
- Public Health - Seattle & King County, 401 Fifth Avenue, Suite 1250, Seattle, WA, United States.
| | - C N Behrends
- Weill Cornell Medical College, 1300 York Ave. Box 65, New York, NY, 10065, United States
| | - A Irwin
- Law Enforcement Action Partnership, Silver Spring, MD, United States
| | - B R Schackman
- Weill Cornell Medical College, 1300 York Ave. Box 65, New York, NY, 10065, United States
| | - D Chan
- King County Department of Community and Health Services, 401 Fifth Avenue, Suite 500, Seattle, WA, United States; University of Washington, School of Public Health, 1959 NE Pacific St, Seattle, WA, 98195, United States
| | - K Hartfield
- Public Health - Seattle & King County, 401 Fifth Avenue, Suite 1250, Seattle, WA, United States
| | - J Hess
- University of Washington, School of Medicine, 1959 NE Pacific St, Seattle, WA, 98195, United States
| | - C Banta-Green
- University of Washington, School of Public Health, 1959 NE Pacific St, Seattle, WA, 98195, United States
| | - L Whiteside
- University of Washington, School of Medicine, 1959 NE Pacific St, Seattle, WA, 98195, United States
| | - B Finegood
- King County Department of Community and Health Services, 401 Fifth Avenue, Suite 500, Seattle, WA, United States
| | - J Duchin
- Public Health - Seattle & King County, 401 Fifth Avenue, Suite 1250, Seattle, WA, United States; University of Washington, School of Public Health, 1959 NE Pacific St, Seattle, WA, 98195, United States; University of Washington, School of Medicine, 1959 NE Pacific St, Seattle, WA, 98195, United States
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Buchter V, Hess J, Gasser G, Keiser J. Assessment of tegumental damage to Schistosoma mansoni and S. haematobium after in vitro exposure to ferrocenyl, ruthenocenyl and benzyl derivatives of oxamniquine using scanning electron microscopy. Parasit Vectors 2018; 11:580. [PMID: 30400935 PMCID: PMC6219169 DOI: 10.1186/s13071-018-3132-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Accepted: 10/02/2018] [Indexed: 12/30/2022] Open
Abstract
Background Schistosomiasis is one of the most harmful parasitic diseases worldwide, praziquantel being the only drug in widespread use to treat it. We recently demonstrated that ferrocenyl, ruthenocenyl and benzyl derivatives of oxamniquine (Fc-OXA, Rc-OXA and Bn-OXA) are promising antischistosomal drug candidates. Methods In this study we assessed the tegumental damage of these three derivatives of oxamniquine using scanning electron microscopy. Adult Schistosoma mansoni and S. haematobium were exposed to a concentration of 100 μM of each drug and incubated for 4–120 h, according to their onset of action and activity. Results While on S. mansoni the fastest acting compound was Fc-OXA, which revealed high activity after 4 h of incubation, on S. haematobium, Rc-OXA revealed the quickest onset, being lethal on all males within 24 h. In both species studied, the three derivatives showed the same patterns of tegumental damage consisting of blebs, sloughing and tegument rupturing all over the body. Additionally, on S. mansoni distinct patterns of tegumental damage were observed for each of the compounds: tissue ruptures in the gynaecophoric canal for Fc-OXA, loss of spines for Rc-OXA and oral sucker rupture for Bn-OXA. Conclusions Our study confirmed that Fc-OXA, Rc-OXA and Bn-OXA are promising broad spectrum antischistosomal drug candidates. All derivatives show fast in vitro activity against S. mansoni and S. haematobium while validating the previous finding that the parent drug oxamniquine is less active in vitro under the conditions described. This work sets the base for further studies on the identification of a lead oxamniquine derivative, with the aim of identifying a molecule with the potential to become a new drug for human use.
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Affiliation(s)
- Valentin Buchter
- Department of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health institute, Socinstrasse 57, 4051, Basel, CH, Switzerland.,University of Basel, P.O. Box, 4003, Basel, CH, Switzerland
| | - Jeannine Hess
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, 8057, Zurich, CH, Switzerland
| | - Gilles Gasser
- Chimie ParisTech, PSL University, Laboratory of Inorganic Chemical Biology, F-75005, Paris, France
| | - Jennifer Keiser
- Department of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health institute, Socinstrasse 57, 4051, Basel, CH, Switzerland. .,University of Basel, P.O. Box, 4003, Basel, CH, Switzerland.
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d'Orchymont F, Hess J, Panic G, Jakubaszek M, Gemperle L, Keiser J, Gasser G. Synthesis, characterization and biological activity of organometallic derivatives of the antimalarial drug mefloquine as new antischistosomal drug candidates. Medchemcomm 2018; 9:1905-1909. [PMID: 30568758 PMCID: PMC6256353 DOI: 10.1039/c8md00396c] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Accepted: 10/04/2018] [Indexed: 12/22/2022]
Abstract
We present the design, synthesis, characterization and biological evaluation of new ferrocenyl and ruthenocenyl derivatives of the organic antimalarial mefloquine, a drug also known for its antischistosomal activity. The two metallocenyl derivatives prepared (3 and 4) demonstrated comparable activity to mefloquine against adult-stage Schistosoma mansoni in vitro. Importantly, both compounds were found to have lower toxicity in all cell lines than mefloquine itself. Administration of a 200 mg kg-1 oral dose of 3 and 4 to S. mansoni-infected mice did not significantly reduce worm burden, contrary to mefloquine.
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Affiliation(s)
- Faustine d'Orchymont
- Department of Chemistry , University of Zurich , Winterthurerstrasse 190 , CH-8057 Zurich , Switzerland
| | - Jeannine Hess
- Department of Chemistry , University of Zurich , Winterthurerstrasse 190 , CH-8057 Zurich , Switzerland
| | - Gordana Panic
- Department of Medical Parasitology and Infection Biology , Swiss Tropical and Public Health Institute , CH-4051 , Basel , Switzerland .
- University of Basel , P.O. Box , CH-4003 Basel , Switzerland
| | - Marta Jakubaszek
- Laboratory for Inorganic Chemical Biology , Chimie ParisTech , PSL University , F-75005 Paris , France .
| | - Lea Gemperle
- Department of Chemistry , University of Zurich , Winterthurerstrasse 190 , CH-8057 Zurich , Switzerland
| | - Jennifer Keiser
- Department of Medical Parasitology and Infection Biology , Swiss Tropical and Public Health Institute , CH-4051 , Basel , Switzerland .
- University of Basel , P.O. Box , CH-4003 Basel , Switzerland
| | - Gilles Gasser
- Laboratory for Inorganic Chemical Biology , Chimie ParisTech , PSL University , F-75005 Paris , France .
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Davis N, Cunnane E, Mooney R, Hess J, Walsh M. Characterisation of human urethral rupture thresholds for urinary catheter inflation related injuries. J Mech Behav Biomed Mater 2018; 83:102-107. [DOI: 10.1016/j.jmbbm.2018.04.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Revised: 04/17/2018] [Accepted: 04/17/2018] [Indexed: 10/17/2022]
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Gerards MG, Haraszti B, Hess J, Houpert ACD, Idel PD, Klaeren FN, Krause J, Coburn M. Kommentar zu: Zeitpunkt der operativen Versorgung hüftgelenknaher Frakturen. Anaesthesist 2018; 67:458-460. [DOI: 10.1007/s00101-018-0449-y] [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: 10/17/2022]
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Schötz U, Orth M, Selmansberger M, Schuster J, Stegen B, Hess J, Unger K, Zitzelsberger H, Belka C, Engenhart-Cabillic R, Lauber K. OC-0488: Prognostic biomarkers and targets for personalization of radiotherapy of HNSCC: CD44v6. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)30798-9] [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: 11/17/2022]
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Hess J, Breidenstein A, Henkel A, Tschirdewahn S, Rehme C, Teufel M, Tagay S, Hadaschik B. Satisfaction, quality of life and psychosocial resources of male to female transgender after gender reassignment surgery. ACTA ACUST UNITED AC 2018. [DOI: 10.1016/s1569-9056(18)32062-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Taylor W, Reitz A, Coplin M, Cardell A, KC D, Pitts S, Wu D, Hess J. 77 Patterns of Emergency Department High Utilizers at Grady Memorial Hospital. Ann Emerg Med 2017. [DOI: 10.1016/j.annemergmed.2017.07.102] [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: 11/17/2022]
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Hess J, Panic G, Patra M, Mastrobuoni L, Spingler B, Roy S, Keiser J, Gasser G. Ferrocenyl, Ruthenocenyl, and Benzyl Oxamniquine Derivatives with Cross-Species Activity against Schistosoma mansoni and Schistosoma haematobium. ACS Infect Dis 2017; 3:645-652. [PMID: 28686009 DOI: 10.1021/acsinfecdis.7b00054] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [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: 12/30/2022]
Abstract
Schistosomiasis is a parasitic disease that affects more than 250 million people annually, mostly children in poor, tropical, rural areas. Only one treatment (praziquantel) is available, putting control efforts at risk should resistance occur. In pursuit of treatment alternatives, we derivatized an old antischistosomal agent, oxamniquine (OXA). Four organometallic derivatives of OXA were synthesized and tested against Schistosoma mansoni in vitro and in vivo. Of these, a ferrocenyl derivative, 1, killed larval and adult worms 24 h postexposure in vitro, in contrast to OXA, which lacks in vitro activity against adult worms. A dose of 200 mg/kg of 1 completely eliminated the worm burden in mice. Subsequently, a ruthenocenyl (5) and a benzyl derivative (6) of OXA were synthesized to probe the importance of the ferrocenyl group in 1. Compounds 1, 5, and 6 were lethal to both S. mansoni and S. haematobium adults in vitro. In vivo, at 100 mg/kg, all three compounds revealed S. mansoni worm burden reductions of 76 to 93%, commensurate with OXA. Our findings present three compounds with activity against S. mansoni in vitro, comparable activity in vivo, and high activity against S. haematobium in vitro. These compounds may possess a different binding mode or mode of action compared to OXA and present excellent starting points for further SAR studies.
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Affiliation(s)
- Jeannine Hess
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Gordana Panic
- Department
of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, Basel, Switzerland
- University of Basel, P.O. Box, CH-4003 Basel, Switzerland
| | - Malay Patra
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Luciano Mastrobuoni
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Bernhard Spingler
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Saonli Roy
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Jennifer Keiser
- Department
of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, Basel, Switzerland
- University of Basel, P.O. Box, CH-4003 Basel, Switzerland
| | - Gilles Gasser
- Chimie ParisTech, PSL Research University, Laboratory for Inorganic Chemical Biology, F-75005 Paris, France
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Hess J, Huang H, Kaiser A, Pierroz V, Blacque O, Chao H, Gasser G. Evaluation of the Medicinal Potential of Two Ruthenium(II) Polypyridine Complexes as One- and Two-Photon Photodynamic Therapy Photosensitizers. Chemistry 2017; 23:9888-9896. [DOI: 10.1002/chem.201701392] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Indexed: 01/16/2023]
Affiliation(s)
- Jeannine Hess
- Department of Chemistry; University of Zurich; Winterthurerstrasse 190 8057 Zurich Switzerland
| | - Huaiyi Huang
- Department of Chemistry; University of Zurich; Winterthurerstrasse 190 8057 Zurich Switzerland
- School of Chemistry; Sun Yat-Sen University; Guangzhou 510275 P. R. China
| | - Adrian Kaiser
- Department of Chemistry; University of Zurich; Winterthurerstrasse 190 8057 Zurich Switzerland
| | - Vanessa Pierroz
- Department of Chemistry; University of Zurich; Winterthurerstrasse 190 8057 Zurich Switzerland
| | - Olivier Blacque
- Department of Chemistry; University of Zurich; Winterthurerstrasse 190 8057 Zurich Switzerland
| | - Hui Chao
- School of Chemistry; Sun Yat-Sen University; Guangzhou 510275 P. R. China
| | - Gilles Gasser
- Chimie ParisTech; PSL Research University; Laboratory for Inorganic Chemical Biology; 75005 Paris France
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Affolter A, Hess J. [Preclinical models in head and neck tumors : Evaluation of cellular and molecular resistance mechanisms in the tumor microenvironment]. HNO 2017; 64:860-869. [PMID: 27837212 DOI: 10.1007/s00106-016-0276-x] [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: 02/07/2023]
Abstract
Because head and neck squamous cell carcinomas (HNSCC) are characterized by a distinct intertumorigenic and intratumorigenic heterogeneity, they often show substantial differences in the response to established therapy strategies. At present, a multitude of biologics and new pharmacological compounds for targeted therapies are available that allow more efficient and less toxic treatment. There is increasing pressure to establish predictive assays not only for ex ante analysis of the individual patient response to combined chemoradiotherapy and targeted therapies but also for investigation of the efficacy of new drugs. In this respect it is essential to maintain the pathophysiological tissue composition as it is known that paracrine tumor-stroma cell interactions may influence tumor reactivity to treatment. More complex models for individualized sensitivity testing have recently been described and the results are promising to pave the way for personalized cancer therapy. This review article focuses on different systems for maintaining the tumor microenvironment and hence the individual cellular composition, such as 3D organotypic models, organotypic multicellular spheroids, patient-derived xenografts and ex vivo tissue cultures and discusses the advantages and disadvantages in terms of translation into clinical application.
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Affiliation(s)
- A Affolter
- Hals-Nasen-Ohren-Klinik des Universitätsklinikums Heidelberg, Im Neuenheimer Feld 400, 69120, Heidelberg, Deutschland.
| | - J Hess
- Hals-Nasen-Ohren-Klinik des Universitätsklinikums Heidelberg, Im Neuenheimer Feld 400, 69120, Heidelberg, Deutschland
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Hess J, Patra M, Rangasamy L, Konatschnig S, Blacque O, Jabbar A, Mac P, Jorgensen EM, Gasser RB, Gasser G. Organometallic Derivatization of the Nematocidal Drug Monepantel Leads to Promising Antiparasitic Drug Candidates. Chemistry 2016; 22:16602-16612. [DOI: 10.1002/chem.201602851] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Indexed: 12/20/2022]
Affiliation(s)
- Jeannine Hess
- Department of Chemistry University of Zurich Winterthurerstrasse 190 8057 Zurich Switzerland
| | - Malay Patra
- Department of Chemistry University of Zurich Winterthurerstrasse 190 8057 Zurich Switzerland
| | - Loganathan Rangasamy
- Department of Chemistry University of Zurich Winterthurerstrasse 190 8057 Zurich Switzerland
| | - Sandro Konatschnig
- Department of Chemistry University of Zurich Winterthurerstrasse 190 8057 Zurich Switzerland
| | - Olivier Blacque
- Department of Chemistry University of Zurich Winterthurerstrasse 190 8057 Zurich Switzerland
| | - Abdul Jabbar
- Faculty of Veterinary and Agricultural Sciences The University of Melbourne Parkville, Victoria 3010 Australia
| | - Patrick Mac
- Howard Hughes Medical Institute Department of Biology University of Utah Salt Lake City UT 84112-0840 USA
| | - Erik M. Jorgensen
- Howard Hughes Medical Institute Department of Biology University of Utah Salt Lake City UT 84112-0840 USA
| | - Robin B. Gasser
- Faculty of Veterinary and Agricultural Sciences The University of Melbourne Parkville, Victoria 3010 Australia
| | - Gilles Gasser
- Department of Chemistry University of Zurich Winterthurerstrasse 190 8057 Zurich Switzerland
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Badie C, Hess J, Zitzelsberger H, Kulka U. Established and Emerging Biomarkers of Radiation Exposure. Clin Oncol (R Coll Radiol) 2016; 28:619-21. [DOI: 10.1016/j.clon.2016.06.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2016] [Accepted: 06/02/2016] [Indexed: 10/21/2022]
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Coplin M, Cardell A, Lall M, Siegelman J, Demestihas M, Hess J. 34 Time-motion Study of Attending Physician Teaching Activities and Interruptions at a Large Academic Emergency Department. Ann Emerg Med 2016. [DOI: 10.1016/j.annemergmed.2016.08.044] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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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Hess J, Patra M, Pierroz V, Spingler B, Jabbar A, Ferrari S, Gasser RB, Gasser G. Synthesis, Characterization, and Biological Activity of Ferrocenyl Analogues of the Anthelmintic Drug Monepantel. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00577] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jeannine Hess
- Department
of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Malay Patra
- Department
of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Vanessa Pierroz
- Department
of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
- Institute
of Molecular Cancer Research, University of Zurich, Winterthurerstrasse
190, CH-8057 Zurich, Switzerland
| | - Bernhard Spingler
- Department
of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Abdul Jabbar
- Faculty
of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Stefano Ferrari
- Institute
of Molecular Cancer Research, University of Zurich, Winterthurerstrasse
190, CH-8057 Zurich, Switzerland
| | - Robin B. Gasser
- Faculty
of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Gilles Gasser
- Department
of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
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Maegele M, Inaba K, Rizoli S, Veigas P, Callum J, Davenport R, Fröhlich M, Hess J. [Early viscoelasticity-based coagulation therapy for severely injured bleeding patients: Report of the consensus group on the consensus conference 2014 for formulation of S2k guidelines]. Anaesthesist 2016; 64:778-94. [PMID: 26136120 DOI: 10.1007/s00101-015-0040-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [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: 01/13/2023]
Abstract
Although there is increasing interest in the use of a viscoelastic test procedure (ROTEM/TEG) for diagnostics and therapy guidance of severely injured and bleeding patients, currently no uniformly accepted guidelines exist for how this technology should be integrated into clinical treatment. In September 2014 an international multidisciplinary group of opinion leaders in the field of trauma-induced coagulopathy and other disciplines involved in the treatment of severely injured patients were assembled for a 2-day consensus conference in Philadelphia (USA). This panel included trauma/accident surgeons, general/abdominal surgeons, vascular surgeons, emergency/intensive care surgeons, hematologists, transfusion specialists, anesthesiologists, laboratory physicians, pathobiologists/pathophysiologists and the lay public. A total of nine questions regarding the impact of viscoelastic testing in the early treatment of trauma patients were developed prior to the conference by a panel consensus. Early use was defined as baseline viscoelastic test result thresholds obtained within the first minutes of hospital arrival, when conventional laboratory results are not yet available. The available data for each question were then reviewed in person using standardized presentations by the expert panel. A consensus summary document was then developed and reviewed by the panel in an open forum. Finally, a 2-round Delphi poll was administered to the panel of experts regarding viscoelastic thresholds for triggering the initiation of specific treatments including fibrinogen (concentrates), platelet concentrates, blood plasma products and prothrombin complex concentrates (PCC). This report summarizes the findings and recommendations of this consensus conference, which correspond to a S2k guideline according to the system of the Association of the Scientific Medical Societies in Germany (AWMF) and taking formal consensus findings including Delphi methods into consideration.
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Affiliation(s)
- M Maegele
- Klinik für Orthopädie, Unfallchirurgie und Sporttraumatologie, Kliniken der Stadt Köln-Merheim, Institut für Forschung in der Operativen Medizin (IFOM), Private Universität Witten/Herdecke (UW/H), Ostmerheimerstr. 200, 51109, Köln, Deutschland.
| | - K Inaba
- Division of Trauma and Surgical Critical Care, University of Southern California, Los Angeles, California, USA
| | - S Rizoli
- Departments of Surgery & Critical Care Medicine, St. Michael's Hospital and University of Toronto, Toronto, Ontario, Kanada
| | - P Veigas
- Department of Surgery, Sunnybrook Health Sciences Center and Institute of Medical Science, University of Toronto, Toronto, Ontario, Kanada
| | - J Callum
- Department of Clinical Pathology, Sunnybrook Health Sciences Center Toronto, Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Kanada
| | - R Davenport
- Centre for Trauma Sciences, Blizard Institute, Bart's and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - M Fröhlich
- Klinik für Orthopädie, Unfallchirurgie und Sporttraumatologie, Kliniken der Stadt Köln-Merheim, Institut für Forschung in der Operativen Medizin (IFOM), Private Universität Witten/Herdecke (UW/H), Ostmerheimerstr. 200, 51109, Köln, Deutschland
| | - J Hess
- Department of Laboratory Medicine, School of Medicine, University of Washington, Seattle, WA, USA
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Zaoui K, Hess J. Konzepte zur Verbesserung gängiger Therapieschemata bei Kopf-Hals-Tumoren. HNO 2016; 64:448-9. [DOI: 10.1007/s00106-016-0179-x] [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]
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Clède S, Cowan N, Lambert F, Bertrand HC, Rubbiani R, Patra M, Hess J, Sandt C, Trcera N, Gasser G, Keiser J, Policar C. Bimodal X-ray and Infrared Imaging of an Organometallic Derivative of Praziquantel inSchistosoma mansoni. Chembiochem 2016; 17:1004-7. [DOI: 10.1002/cbic.201500688] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Indexed: 12/22/2022]
Affiliation(s)
- Sylvain Clède
- École Normale Supérieure; PSL Research University; Département de Chimie; 24 rue Lhomond 75005 Paris France
- Sorbonne Universités; UPMC Univ Paris 06; LBM; 4 place Jussieu 75005 Paris France
- Centre National de la Recherche Scientifique (CNRS); UMR 7203 LBM; 75005 Paris France
| | - Noemi Cowan
- Department of Medical Parasitology and Infection Biology; Swiss Tropical and Public Health Institute Basel, Switzerland; University of Basel; P. O. Box 4003 Basel Switzerland
| | - François Lambert
- École Normale Supérieure; PSL Research University; Département de Chimie; 24 rue Lhomond 75005 Paris France
- Sorbonne Universités; UPMC Univ Paris 06; LBM; 4 place Jussieu 75005 Paris France
- Centre National de la Recherche Scientifique (CNRS); UMR 7203 LBM; 75005 Paris France
| | - Hélène C. Bertrand
- École Normale Supérieure; PSL Research University; Département de Chimie; 24 rue Lhomond 75005 Paris France
- Sorbonne Universités; UPMC Univ Paris 06; LBM; 4 place Jussieu 75005 Paris France
- Centre National de la Recherche Scientifique (CNRS); UMR 7203 LBM; 75005 Paris France
| | - Riccardo Rubbiani
- Department of Chemistry; University of Zürich; Winterthurerstrasse 190 8057 Zürich Switzerland
| | - Malay Patra
- Department of Chemistry; University of Zürich; Winterthurerstrasse 190 8057 Zürich Switzerland
| | - Jeannine Hess
- Department of Chemistry; University of Zürich; Winterthurerstrasse 190 8057 Zürich Switzerland
| | - Christophe Sandt
- Synchrotron SOLEIL; L'Orme des Merisiers, Saint Aubin B. P. 48 91192 Gif-sur-Yvette France
| | - Nicolas Trcera
- Synchrotron SOLEIL; L'Orme des Merisiers, Saint Aubin B. P. 48 91192 Gif-sur-Yvette France
| | - Gilles Gasser
- Department of Chemistry; University of Zürich; Winterthurerstrasse 190 8057 Zürich Switzerland
| | - Jennifer Keiser
- Department of Medical Parasitology and Infection Biology; Swiss Tropical and Public Health Institute Basel, Switzerland; University of Basel; P. O. Box 4003 Basel Switzerland
| | - Clotilde Policar
- École Normale Supérieure; PSL Research University; Département de Chimie; 24 rue Lhomond 75005 Paris France
- Sorbonne Universités; UPMC Univ Paris 06; LBM; 4 place Jussieu 75005 Paris France
- Centre National de la Recherche Scientifique (CNRS); UMR 7203 LBM; 75005 Paris France
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Hess J, Gimenez Aznar I, Michna A, Klein D, Schötz U, Orth M, Schneider L, Braselmann H, Schüttrumpf L, Jendrossek V, Belka C, Zangen V, Unger K, Zitzelsberger H, Lauber K. OC-0441: Genomic amplification of FancA in HNSCC: mechanisms of radioresistance and clinical relevance. Radiother Oncol 2016. [DOI: 10.1016/s0167-8140(16)31690-5] [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: 10/21/2022]
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Hess J, Patra M, Jabbar A, Pierroz V, Konatschnig S, Spingler B, Ferrari S, Gasser RB, Gasser G. Assessment of the nematocidal activity of metallocenyl analogues of monepantel. Dalton Trans 2016; 45:17662-17671. [DOI: 10.1039/c6dt03376h] [Citation(s) in RCA: 9] [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: 12/31/2022]
Abstract
Ferrocenyl and ruthenocenyl analogues of the nematocidal drug monepantel show organometallic-dependent activity against Haemonchus contortus and Trichostrongylus colubriformis.
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Affiliation(s)
- Jeannine Hess
- Department of Chemistry
- University of Zurich
- CH-8057 Zurich
- Switzerland
| | - Malay Patra
- Department of Chemistry
- University of Zurich
- CH-8057 Zurich
- Switzerland
| | - Abdul Jabbar
- Faculty of Veterinary and Agricultural Sciences
- The University of Melbourne
- Parkville
- Australia
| | - Vanessa Pierroz
- Department of Chemistry
- University of Zurich
- CH-8057 Zurich
- Switzerland
- Institute of Molecular Cancer Research
| | | | - Bernhard Spingler
- Department of Chemistry
- University of Zurich
- CH-8057 Zurich
- Switzerland
| | - Stefano Ferrari
- Institute of Molecular Cancer Research
- University of Zurich
- CH-8057 Zurich
- Switzerland
| | - Robin B. Gasser
- Faculty of Veterinary and Agricultural Sciences
- The University of Melbourne
- Parkville
- Australia
| | - Gilles Gasser
- Department of Chemistry
- University of Zurich
- CH-8057 Zurich
- Switzerland
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Hess J. Systemische Tumortherapie bei älteren Patienten. Urologe A 2015; 54:1758-64. [DOI: 10.1007/s00120-015-4009-7] [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: 10/22/2022]
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Maegele M, Inaba K, Rizoli S, Veigas P, Callum J, Davenport R, Fröhlich M, Hess J. Frühe viskoelastizitätsbasierte Gerinnungstherapie bei blutenden Schwerverletzten. Notf Rett Med 2015. [DOI: 10.1007/s10049-015-0071-3] [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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Selmansberger M, Feuchtinger A, Zurnadzhy L, Michna A, Kaiser JC, Abend M, Brenner A, Bogdanova T, Walch A, Unger K, Zitzelsberger H, Hess J. CLIP2 as radiation biomarker in papillary thyroid carcinoma. Oncogene 2014; 34:3917-25. [DOI: 10.1038/onc.2014.311] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2014] [Revised: 07/16/2014] [Accepted: 08/09/2014] [Indexed: 12/16/2022]
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Hauser M, Eicken A, Kühn A, Hess J, Fratz S, Ewert P, Kaemmerer H. Der rechtsventrikuläre Ausflusstrakt bei korrigierter Fallotʼscher Tetralogie: Hämodynamik, Diagnostik und Therapie. Aktuel Kardiol 2014. [DOI: 10.1055/s-0033-1357979] [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: 10/24/2022]
Affiliation(s)
- M. Hauser
- Praxis für Kinderkardiologie, München
| | - A. Eicken
- Klinik für Kinderkardiologie und angeborene Herzfehler, Deutsches Herzzentrum München, München
| | - A. Kühn
- Klinik für Kinderkardiologie und angeborene Herzfehler, Deutsches Herzzentrum München, München
| | - J. Hess
- Klinik für Kinderkardiologie und angeborene Herzfehler, Deutsches Herzzentrum München, München
| | - S. Fratz
- Klinik für Kinderkardiologie und angeborene Herzfehler, Deutsches Herzzentrum München, München
| | - P. Ewert
- Klinik für Kinderkardiologie und angeborene Herzfehler, Deutsches Herzzentrum München, München
| | - H. Kaemmerer
- Klinik für Kinderkardiologie und angeborene Herzfehler, Deutsches Herzzentrum München, München
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Mebus S, Kügel J, Zachoval R, Braun S, Haverkämper G, Opgen-Rhein B, Berger F, Horster S, Salvador C, Kappler S, Bauer U, Hess J, Ewert P, Kaemmerer H. Noninvasive assessment of liver function in adults with congenital heart disease (ACHD) by transient elastography (Fibroscan), Acoustic Radiation Force Impulse Imaging (ARFI) and biochemical markers. Thorac Cardiovasc Surg 2014. [DOI: 10.1055/s-0034-1394042] [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: 10/24/2022]
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50
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Mari C, Pierroz V, Rubbiani R, Patra M, Hess J, Spingler B, Oehninger L, Schur J, Ott I, Salassa L, Ferrari S, Gasser G. DNA Intercalating RuIIPolypyridyl Complexes as Effective Photosensitizers in Photodynamic Therapy. Chemistry 2014; 20:14421-36. [DOI: 10.1002/chem.201402796] [Citation(s) in RCA: 151] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2014] [Revised: 07/10/2014] [Indexed: 12/22/2022]
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