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Arora B, Kulkarni A, Markus MA, Ströbel P, Bohnenberger H, Alves F, Ramos-Gomes F. Label-free quantification of imaging features in the extracellular matrix of left and right-sided colon cancer tissues. Sci Rep 2024; 14:7510. [PMID: 38553551 PMCID: PMC10980747 DOI: 10.1038/s41598-024-58231-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 03/26/2024] [Indexed: 04/02/2024] Open
Abstract
The molecular pathogenesis of colorectal cancer is known to differ between the right and left side of the colon. Several previous studies have focussed on the differences in clinicopathological features, proteomic and genetic biomarkers, the composition of gut microbiota, response to therapy, and the characteristics of the tumour microenvironment. However, the morphology and density of collagen in the extracellular matrix (ECM) have not been studied intensively. In this study, we employed 2-photon laser scanning microscopy (2PLSM) to visualise the intrinsic second-harmonic generation (SHG) signal emitted by collagen fibres in the heterogeneous ECM of human colon tumour tissues. Through texture analysis of the SHG signal, we quantitatively distinguished the imaging features generated by structural differences of collagen fibres in healthy colon and cancers and found marked differences. The fibres inside of tumours exhibited a loss of organisation, particularly pronounced in right-sided colon cancer (RSCC), where the chaotic regions were significantly increased. In addition, a higher collagen content was found in left-sided colon cancer (LSCC). In future, this might aid in subclassification and therapeutic decisions or even in designing new therapy regimens by taking into account the differences between collagen fibres features between colon tumours located at different sides.
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Affiliation(s)
- B Arora
- Translational Molecular Imaging, Max-Planck-Institute for Multidisciplinary Sciences, Hermann Rein-Straße 3, 37075, Göttingen, Germany
| | - A Kulkarni
- Translational Molecular Imaging, Max-Planck-Institute for Multidisciplinary Sciences, Hermann Rein-Straße 3, 37075, Göttingen, Germany
| | - M A Markus
- Translational Molecular Imaging, Max-Planck-Institute for Multidisciplinary Sciences, Hermann Rein-Straße 3, 37075, Göttingen, Germany
| | - P Ströbel
- Institute of Pathology, University Medical Center Göttingen, Robert-Koch-Straβe 40, 37075, Göttingen, Germany
| | - H Bohnenberger
- Institute of Pathology, University Medical Center Göttingen, Robert-Koch-Straβe 40, 37075, Göttingen, Germany
| | - F Alves
- Translational Molecular Imaging, Max-Planck-Institute for Multidisciplinary Sciences, Hermann Rein-Straße 3, 37075, Göttingen, Germany
- Clinic for Haematology and Medical Oncology, Institute of Interventional and Diagnostic Radiology, University Medical Center Göttingen, Robert-Koch-Straβe 40, 37075, Göttingen, Germany
- Cluster of Excellence "Multiscale Bioimaging: from Molecular Machines to Networks of Excitable Cells" (MBExC), University of Goettingen, Göttingen, Germany
| | - F Ramos-Gomes
- Translational Molecular Imaging, Max-Planck-Institute for Multidisciplinary Sciences, Hermann Rein-Straße 3, 37075, Göttingen, Germany.
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Relvas M, Silva J, Matos AL, Alves F, Gonçalo M. Concomitant evaluation of D-dimer and C-reactive protein in chronic spontaneous urticaria may show divergent values. Eur Ann Allergy Clin Immunol 2024; 56:89-92. [PMID: 35791699 DOI: 10.23822/eurannaci.1764-1489.259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- M Relvas
- Department of Dermatology, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
| | - J Silva
- Department of Occupational Health, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
| | - A L Matos
- Department of Dermatology, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
| | - F Alves
- Department of Dermatology, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
| | - M Gonçalo
- Department of Dermatology, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
- Faculty of Medicine, University of Coimbra, Coimbra, Portugal
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Dullin C, Albers J, Tagat A, Lorenzon A, D'Amico L, Chiriotti S, Sodini N, Dreossi D, Alves F, Bergamaschi A, Tromba G. In vivo low-dose phase-contrast CT for quantification of functional and anatomical alterations in lungs of an experimental allergic airway disease mouse model. Front Med (Lausanne) 2024; 11:1338846. [PMID: 38410752 PMCID: PMC10894991 DOI: 10.3389/fmed.2024.1338846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Accepted: 01/22/2024] [Indexed: 02/28/2024] Open
Abstract
Introduction Synchrotron-based propagation-based imaging (PBI) is ideally suited for lung imaging and has successfully been applied in a variety of in vivo small animal studies. Virtually all these experiments were tailored to achieve extremely high spatial resolution close to the alveolar level while delivering high x-ray doses that would not permit longitudinal studies. However, the main rationale for performing lung imaging studies in vivo in small animal models is the ability to follow disease progression or monitor treatment response in the same animal over time. Thus, an in vivo imaging strategy should ideally allow performing longitudinal studies. Methods Here, we demonstrate our findings of using PBI-based planar and CT imaging with two different detectors-MÖNCH 0.3 direct conversion detector and a complementary metal-oxide-semiconductor (CMOS) detector (Photonics Science)-in an Ovalbumin induced experimental allergic airway disease mouse model in comparison with healthy controls. The mice were imaged free breathing under isoflurane anesthesia. Results At x-ray dose levels below those once used by commercial small animal CT devices at similar spatial resolutions, we were able to resolve structural changes at a pixel size down to 25 μm and demonstrate the reduction in elastic recoil in the asthmatic mice in cinematic planar x-ray imaging with a frame rate of up to 100 fps. Discussion Thus, we believe that our approach will permit longitudinal small animal lung disease studies, closely following the mice over longer time spans.
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Affiliation(s)
- Christian Dullin
- Institute for Diagnostic and Interventional Radiology, University Medical Center Göttingen, Göttingen, Germany
- Translational Molecular Imaging, Max-Plank-Institute for Multidisciplinary Sciences, Göttingen, Germany
- Diagnostic and Interventional Radiology, University Hospital Heidelberg, Heidelberg, Germany
| | - Jonas Albers
- Institute for Diagnostic and Interventional Radiology, University Medical Center Göttingen, Göttingen, Germany
- European Molecular Biology Laboratory, Hamburg Unit c/o Deutsches Elektronen-Synchrotron (DESY), Hamburg, Germany
| | - Aishwarya Tagat
- Department of Urology, University Hospital of Saarland, Homburg, Germany
| | | | - Lorenzo D'Amico
- Elettra-Sincrotrone Trieste S.C.p.A., Trieste, Italy
- Department of Physics, University of Trieste, Trieste, Italy
| | - Sabina Chiriotti
- PSD Detector Science and Characterization Group, Paul Scherrer Institute, Villingen, Switzerland
| | - Nicola Sodini
- Elettra-Sincrotrone Trieste S.C.p.A., Trieste, Italy
| | - Diego Dreossi
- Elettra-Sincrotrone Trieste S.C.p.A., Trieste, Italy
| | - Frauke Alves
- Institute for Diagnostic and Interventional Radiology, University Medical Center Göttingen, Göttingen, Germany
- Translational Molecular Imaging, Max-Plank-Institute for Multidisciplinary Sciences, Göttingen, Germany
- Department of Haematology and Medical Oncology, University Medical Center Göttingen, Göttingen, Germany
| | - Anna Bergamaschi
- PSD Detector Science and Characterization Group, Paul Scherrer Institute, Villingen, Switzerland
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D'Amico L, Svetlove A, Longo E, Meyer R, Senigagliesi B, Saccomano G, Nolte P, Wagner WL, Wielpütz MO, Leitz DHW, Duerr J, Mall MA, Casalis L, Köster S, Alves F, Tromba G, Dullin C. Characterization of transient and progressive pulmonary fibrosis by spatially correlated phase contrast microCT, classical histopathology and atomic force microscopy. Comput Biol Med 2024; 169:107947. [PMID: 38211385 DOI: 10.1016/j.compbiomed.2024.107947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 12/07/2023] [Accepted: 01/01/2024] [Indexed: 01/13/2024]
Abstract
Pulmonary fibrosis (PF) is a severe and progressive condition in which the lung becomes scarred over time resulting in pulmonary function impairment. Classical histopathology remains an important tool for micro-structural tissue assessment in the diagnosis of PF. A novel workflow based on spatial correlated propagation-based phase-contrast micro computed tomography (PBI-microCT), atomic force microscopy (AFM) and histopathology was developed and applied to two different preclinical mouse models of PF - the commonly used and well characterized Bleomycin-induced PF and a novel mouse model for progressive PF caused by conditional Nedd4-2 KO. The aim was to integrate structural and mechanical features from hallmarks of fibrotic lung tissue remodeling. PBI-microCT was used to assess structural alteration in whole fixed and paraffin embedded lungs, allowing for identification of fibrotic foci within the 3D context of the entire organ and facilitating targeted microtome sectioning of planes of interest for subsequent histopathology. Subsequently, these sections of interest were subjected to AFM to assess changes in the local tissue stiffness of previously identified structures of interest. 3D whole organ analysis showed clear morphological differences in 3D tissue porosity between transient and progressive PF and control lungs. By integrating the results obtained from targeted AFM analysis, it was possible to discriminate between the Bleomycin model and the novel conditional Nedd4-2 KO model using agglomerative cluster analysis. As our workflow for 3D spatial correlation of PBI, targeted histopathology and subsequent AFM is tailored around the standard procedure of formalin-fixed paraffin-embedded (FFPE) tissue specimens, it may be a powerful tool for the comprehensive tissue assessment beyond the scope of PF and preclinical research.
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Affiliation(s)
- Lorenzo D'Amico
- University of Trieste, Department of Physics, Via Alfonso Valerio 2, Trieste, 34127, Italy; Elettra Sincrotrone Trieste S.C.p.A., s.s. 14 km 163, 500 in Area Science Park, Basovizza, 34149, Italy
| | - Angelika Svetlove
- Translational Molecular Imaging, Max-Plank-Institute for Multidisciplinary Sciences, Hermann-Rein-Straße 3, Göttingen, 37075, Germany; Cluster of Excellence "Multiscale Bioimaging: from Molecular Machines to Networks of Excitable Cells" (MBExC), Robert-Koch-Str. 40, Göttingen, 37075, Germany
| | - Elena Longo
- Elettra Sincrotrone Trieste S.C.p.A., s.s. 14 km 163, 500 in Area Science Park, Basovizza, 34149, Italy
| | - Ruth Meyer
- Institute for X-ray Physics, University of Göttingen, Friedrich-Hund-Platz 1, Göttingen, 37077, Germany
| | - Beatrice Senigagliesi
- Interdisciplinary Institute for Neuroscience, University of Bordeaux-UMR 5297 and CNRS, 146 Rue Léo Saignat, Bordeaux, 33000, France
| | - Giulia Saccomano
- Elettra Sincrotrone Trieste S.C.p.A., s.s. 14 km 163, 500 in Area Science Park, Basovizza, 34149, Italy; University of Trieste, Department of Architecture and Engineering, Via Alfonso Valerio 6/1, Trieste, 34127, Italy
| | - Philipp Nolte
- Faculty of Engineering and Health, University of Applied Sciences and Arts, Göttingen, 37085, Germany; Institute for Diagnostic and Interventional Radiology, University Medical Center, Göttingen, 37075, Germany
| | - Willi L Wagner
- Diagnostic and Interventional Radiology, University Hospital Heidelberg, Heidelberg, Germany
| | - Mark O Wielpütz
- Diagnostic and Interventional Radiology, University Hospital Heidelberg, Heidelberg, Germany
| | - Dominik H W Leitz
- Department of Pediatric Respiratory Medicine, Immunology and Critical Care Medicine, Charite - University Hospital Berlin, Berlin, 13353, Germany; German Center for Lung Research (DZL), associated partner site, Berlin, Germany; Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, 10117, Germany
| | - Julia Duerr
- Department of Pediatric Respiratory Medicine, Immunology and Critical Care Medicine, Charite - University Hospital Berlin, Berlin, 13353, Germany; German Center for Lung Research (DZL), associated partner site, Berlin, Germany; Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, 10117, Germany
| | - Marcus A Mall
- Department of Pediatric Respiratory Medicine, Immunology and Critical Care Medicine, Charite - University Hospital Berlin, Berlin, 13353, Germany; German Center for Lung Research (DZL), associated partner site, Berlin, Germany; Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, 10117, Germany
| | - Loredana Casalis
- Elettra Sincrotrone Trieste S.C.p.A., s.s. 14 km 163, 500 in Area Science Park, Basovizza, 34149, Italy
| | - Sarah Köster
- Cluster of Excellence "Multiscale Bioimaging: from Molecular Machines to Networks of Excitable Cells" (MBExC), Robert-Koch-Str. 40, Göttingen, 37075, Germany; Institute for X-ray Physics, University of Göttingen, Friedrich-Hund-Platz 1, Göttingen, 37077, Germany
| | - Frauke Alves
- Translational Molecular Imaging, Max-Plank-Institute for Multidisciplinary Sciences, Hermann-Rein-Straße 3, Göttingen, 37075, Germany; Cluster of Excellence "Multiscale Bioimaging: from Molecular Machines to Networks of Excitable Cells" (MBExC), Robert-Koch-Str. 40, Göttingen, 37075, Germany; Institute for Diagnostic and Interventional Radiology, University Medical Center, Göttingen, 37075, Germany; Department for Haematology and Medical Oncology, University Medical Center, Göttingen, 37075, Germany
| | - Giuliana Tromba
- Elettra Sincrotrone Trieste S.C.p.A., s.s. 14 km 163, 500 in Area Science Park, Basovizza, 34149, Italy
| | - Christian Dullin
- Elettra Sincrotrone Trieste S.C.p.A., s.s. 14 km 163, 500 in Area Science Park, Basovizza, 34149, Italy; Translational Molecular Imaging, Max-Plank-Institute for Multidisciplinary Sciences, Hermann-Rein-Straße 3, Göttingen, 37075, Germany; Institute for Diagnostic and Interventional Radiology, University Medical Center, Göttingen, 37075, Germany; Diagnostic and Interventional Radiology, University Hospital Heidelberg, Heidelberg, Germany.
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Rudolph D, Ischyropoulou M, Pfeifer J, Napp J, Schepers U, Alves F, Feldmann C. Cocktail of lipophilic and hydrophilic chemotherapeutics in high-load core@shell nanocarriers to treat pancreatic tumours. Nanoscale Adv 2024; 6:973-984. [PMID: 38298597 PMCID: PMC10825944 DOI: 10.1039/d3na00720k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Accepted: 12/24/2023] [Indexed: 02/02/2024]
Abstract
ITC/Toc@Gd2(FLP)3 core@shell nanocarriers with a chemotherapeutic cocktail of lipophilic irinotecan (ITC) as the particle core and hydrophilic fludarabine phosphate (FLP) in the particle shell are realized. They are prepared via a microemulsion approach with ITC dissolved in tocopherol (Toc) as droplet phase and stabilized by water-insoluble Gd2(FLP)3. The synthesis can be followed by zeta-potential analysis. X-ray powder diffraction, infrared spectroscopy, elemental analysis, thermogravimetry, and photometry show a drug load of 49 μg per mL ITC and 317 μg per mL FLP at a nanocarrier concentration of 1.5 mg mL-1. Size and structure are evidenced by electron microscopy, resulting in a total diameter of 45 ± 16 nm, an inner core of 40 ± 17 nm, and a shell of 3-8 nm. In vitro studies with different cancer cell lines (i.e., human melanoma/SK-Mel-28, cervical cancer/HeLa, mouse pancreatic cancer/Panc02 and KPC as well as human pancreatic cancer/Capan-1 cells) prove efficient nanocarrier uptake and promising cytostatic efficacy. Specifically for KPC cells, ITC/Toc@Gd2(FLP)3 nanocarriers show an increased efficacy, with half maximal inhibitory concentration (IC50: 4.2 μM) > 10 times lower than the free drugs (IC50: ITC: 47.7 μM, FLP: 143 μM). This points to the synergistic effect of the ITC/FLP drug cocktail in the nanocarriers and may result in a promising strategy to treat pancreatic ductal adenocarcinoma (PDAC).
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Affiliation(s)
- David Rudolph
- Institute for Inorganic Chemistry (IAC), Karlsruhe Institute of Technology (KIT) Engesserstraße 15 76131 Karlsruhe Germany
| | - Myrto Ischyropoulou
- University Medical Center Goettingen (UMG), Institute for Diagnostic and Interventional Radiology Robert-Koch-Straße 40 37075 Göttingen Germany
- Max-Planck-Institute for Multidisciplinary Sciences (MPI-NAT), Translational Molecular Imaging Hermann-Rein-Straße 3 37075 Göttingen Germany
| | - Juliana Pfeifer
- Institute of Functional Interfaces, Karlsruhe Institute of Technology (KIT) Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
| | - Joanna Napp
- University Medical Center Goettingen (UMG), Institute for Diagnostic and Interventional Radiology Robert-Koch-Straße 40 37075 Göttingen Germany
- Max-Planck-Institute for Multidisciplinary Sciences (MPI-NAT), Translational Molecular Imaging Hermann-Rein-Straße 3 37075 Göttingen Germany
| | - Ute Schepers
- Institute of Functional Interfaces, Karlsruhe Institute of Technology (KIT) Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
| | - Frauke Alves
- University Medical Center Goettingen (UMG), Institute for Diagnostic and Interventional Radiology Robert-Koch-Straße 40 37075 Göttingen Germany
- Max-Planck-Institute for Multidisciplinary Sciences (MPI-NAT), Translational Molecular Imaging Hermann-Rein-Straße 3 37075 Göttingen Germany
- Clinic of Hematology and Medical Oncology, University Medical Center Göttingen Robert-Koch-Straße 40 37075 Göttingen Germany
| | - Claus Feldmann
- Institute for Inorganic Chemistry (IAC), Karlsruhe Institute of Technology (KIT) Engesserstraße 15 76131 Karlsruhe Germany
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Cobanoglu O, Delval L, Ferrari D, Deruyter L, Heumel S, Wolowczuk I, Hussein A, Menevse AN, Bernard D, Beckhove P, Alves F, Trottein F. Depletion of preexisting B-cell lymphoma 2-expressing senescent cells before vaccination impacts antigen-specific antitumor immune responses in old mice. Aging Cell 2023; 22:e14007. [PMID: 37997569 PMCID: PMC10726819 DOI: 10.1111/acel.14007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 09/11/2023] [Accepted: 09/26/2023] [Indexed: 11/25/2023] Open
Abstract
The age-related decline in immunity reduces the effectiveness of vaccines in older adults. Immunosenescence is associated with chronic, low-grade inflammation, and the accumulation of senescent cells. The latter express Bcl-2 family members (providing resistance to cell death) and exhibit a pro-inflammatory, senescence-associated secretory phenotype (SASP). Preexisting senescent cells cause many aging-related disorders and therapeutic means of eliminating these cells have recently gained attention. The potential consequences of senescent cell removal on vaccine efficacy in older individuals are still ignored. We used the Bcl-2 family inhibitor ABT-263 to investigate the effects of pre-vaccination senolysis on immune responses in old mice. Two different ovalbumin (OVA)-containing vaccines (containing a saponin-based or a CpG oligodeoxynucleotide adjuvant) were tested. ABT-263 depleted senescent cells (apoptosis) and ablated the basal and lipopolysaccharide-induced production of SASP-related factors in old mice. Depletion of senescent cells prior to vaccination (prime/boost) had little effect on OVA-specific antibody and T-cell responses (slightly reduced and augmented, respectively). We then used a preclinical melanoma model to test the antitumor potential of senolysis before vaccination (prime with the vaccine and OVA boost by tumor cells). Surprisingly, ABT-263 treatment abrogated the vaccine's ability to protect against B16 melanoma growth in old animals, an effect associated with reduced antigen-specific T-cell responses. Some, but not all, of the effects were age-specific, which suggests that preexisting senescent cells were partly involved. Hence, depletion of senescent cells modifies immune responses to vaccines in some settings and caution should be taken when incorporating senolytics into vaccine-based cancer therapies.
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Affiliation(s)
- Ozmen Cobanoglu
- CNRS, INSERM, CHU Lille, Institut Pasteur de Lille, U1019 ‐ UMR 9017 ‐ CIIL ‐ Center for Infection and Immunity of LilleUniversity of LilleLilleFrance
| | - Lou Delval
- CNRS, INSERM, CHU Lille, Institut Pasteur de Lille, U1019 ‐ UMR 9017 ‐ CIIL ‐ Center for Infection and Immunity of LilleUniversity of LilleLilleFrance
| | - Daniele Ferrari
- Translational Molecular Imaging Group, Max‐Planck Institute for Multidisciplinary SciencesGöttingenGermany
| | - Lucie Deruyter
- CNRS, INSERM, CHU Lille, Institut Pasteur de Lille, U1019 ‐ UMR 9017 ‐ CIIL ‐ Center for Infection and Immunity of LilleUniversity of LilleLilleFrance
| | - Séverine Heumel
- CNRS, INSERM, CHU Lille, Institut Pasteur de Lille, U1019 ‐ UMR 9017 ‐ CIIL ‐ Center for Infection and Immunity of LilleUniversity of LilleLilleFrance
| | - Isabelle Wolowczuk
- CNRS, INSERM, CHU Lille, Institut Pasteur de Lille, U1019 ‐ UMR 9017 ‐ CIIL ‐ Center for Infection and Immunity of LilleUniversity of LilleLilleFrance
| | - Abir Hussein
- Clinic of Hematology and Medical Oncology, Institute of Interventional and Diagnostic RadiologyUniversity Medical Center GöttingenGöttingenGermany
| | - Ayse Nur Menevse
- Clinic of Hematology and Medical Oncology, Institute of Interventional and Diagnostic RadiologyUniversity Medical Center GöttingenGöttingenGermany
| | - David Bernard
- Centre de Recherche en Cancérologie de Lyon, Inserm U1052, CNRS UMR 5286, Centre Léon Bérard, Université de LyonLyonFrance
| | - Philip Beckhove
- Clinic of Hematology and Medical Oncology, Institute of Interventional and Diagnostic RadiologyUniversity Medical Center GöttingenGöttingenGermany
- Department of Internal Medicine IIIUniversity Hospital RegensburgRegensburgGermany
| | - Frauke Alves
- Translational Molecular Imaging Group, Max‐Planck Institute for Multidisciplinary SciencesGöttingenGermany
| | - François Trottein
- CNRS, INSERM, CHU Lille, Institut Pasteur de Lille, U1019 ‐ UMR 9017 ‐ CIIL ‐ Center for Infection and Immunity of LilleUniversity of LilleLilleFrance
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7
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Garnier N, Berghout J, Zygmunt A, Singh D, Huang KA, Kantz W, Blankart CR, Gillner S, Zhao J, Roettger R, Saier C, Kirschner J, Schenk J, Atkins L, Ryan N, Zarakowska K, Zschüntzsch J, Zuccolo M, Müllenborn M, Man YS, Goodman L, Trad M, Chalandon AS, Sansen S, Martinez-Fresno M, Badger S, Walther van Olden R, Rothmann R, Lehner P, Tschohl C, Baillon L, Gumus G, Gross E, Stefanov R, Iskrov G, Raycheva R, Kostadinov K, Mitova E, Einhorn M, Einhorn Y, Schepers J, Hübner M, Alves F, Iskandar R, Mayer R, Renieri A, Piperkova A, Gut I, Beltran S, Matthiesen ME, Poetz M, Hansson M, Trollmann R, Agolini E, Ottombrino S, Novelli A, Bertini E, Selvatici R, Farnè M, Fortunato F, Ferlini A. Genetic newborn screening and digital technologies: A project protocol based on a dual approach to shorten the rare diseases diagnostic path in Europe. PLoS One 2023; 18:e0293503. [PMID: 37992053 PMCID: PMC10664952 DOI: 10.1371/journal.pone.0293503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Accepted: 10/03/2023] [Indexed: 11/24/2023] Open
Abstract
Since 72% of rare diseases are genetic in origin and mostly paediatrics, genetic newborn screening represents a diagnostic "window of opportunity". Therefore, many gNBS initiatives started in different European countries. Screen4Care is a research project, which resulted of a joint effort between the European Union Commission and the European Federation of Pharmaceutical Industries and Associations. It focuses on genetic newborn screening and artificial intelligence-based tools which will be applied to a large European population of about 25.000 infants. The neonatal screening strategy will be based on targeted sequencing, while whole genome sequencing will be offered to all enrolled infants who may show early symptoms but have resulted negative at the targeted sequencing-based newborn screening. We will leverage artificial intelligence-based algorithms to identify patients using Electronic Health Records (EHR) and to build a repository "symptom checkers" for patients and healthcare providers. S4C will design an equitable, ethical, and sustainable framework for genetic newborn screening and new digital tools, corroborated by a large workout where legal, ethical, and social complexities will be addressed with the intent of making the framework highly and flexibly translatable into the diverse European health systems.
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Affiliation(s)
- Nicolas Garnier
- Pfizer Inc., Collegeville, Pennsylvania, United States of America
| | - Joanne Berghout
- Pfizer Inc., Collegeville, Pennsylvania, United States of America
| | - Aldona Zygmunt
- Pfizer Inc., Collegeville, Pennsylvania, United States of America
| | - Deependra Singh
- Pfizer Inc., Collegeville, Pennsylvania, United States of America
| | - Kui A. Huang
- Pfizer Inc., Collegeville, Pennsylvania, United States of America
| | - Waltraud Kantz
- Pfizer Inc., Collegeville, Pennsylvania, United States of America
| | - Carl Rudolf Blankart
- KPM Center for Public Management and Swiss Institute for Translational and Entrepreneurial Medicine, University of Bern, Bern, Switzerland
| | - Sandra Gillner
- KPM Center for Public Management and Swiss Institute for Translational and Entrepreneurial Medicine, University of Bern, Bern, Switzerland
| | - Jiawei Zhao
- Department of Mathematics and Computer Science, University of Southern Denmark, Odense, Denmark
| | - Richard Roettger
- Department of Mathematics and Computer Science, University of Southern Denmark, Odense, Denmark
| | - Christina Saier
- Department of Neuropediatric and Muscle Disorders, Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Jan Kirschner
- Department of Neuropediatric and Muscle Disorders, Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Joern Schenk
- Takeda Pharmaceuticals International AG, Opfikon, Switzerland
| | - Leon Atkins
- Takeda Pharmaceuticals International AG, Opfikon, Switzerland
| | - Nuala Ryan
- Takeda Pharmaceuticals International AG, Opfikon, Switzerland
| | - Kaja Zarakowska
- Takeda Pharmaceuticals International AG, Opfikon, Switzerland
| | - Jana Zschüntzsch
- Department of Neurology, University Medical Center Goettingen, Göttingen, Germany
| | | | | | - Yuen-Sum Man
- Novo Nordisk Health Care AG, Switzerland &Novo Nordisk A/S, Kloten, Denmark
| | - Liz Goodman
- University College Dublin, National University of Ireland, Dublin, Ireland
| | | | | | | | | | | | | | - Robert Rothmann
- Research Institute AG & Co KG, Digital Human Rights Center, Wien, Austria
| | - Patrick Lehner
- Research Institute AG & Co KG, Digital Human Rights Center, Wien, Austria
| | - Christof Tschohl
- Research Institute AG & Co KG, Digital Human Rights Center, Wien, Austria
| | | | | | | | - Rumen Stefanov
- Department of Social Medicine and Public Health, Faculty of Public Health, Medical University of Plovdiv, Plovdiv, Bulgaria
- Bulgarian Association for Promotion of Education and Science, Institute for Rare Disease, Plovdiv, Bulgaria
| | - Georgi Iskrov
- Department of Social Medicine and Public Health, Faculty of Public Health, Medical University of Plovdiv, Plovdiv, Bulgaria
- Bulgarian Association for Promotion of Education and Science, Institute for Rare Disease, Plovdiv, Bulgaria
| | - Ralitsa Raycheva
- Department of Social Medicine and Public Health, Faculty of Public Health, Medical University of Plovdiv, Plovdiv, Bulgaria
- Bulgarian Association for Promotion of Education and Science, Institute for Rare Disease, Plovdiv, Bulgaria
| | - Kostadin Kostadinov
- Department of Social Medicine and Public Health, Faculty of Public Health, Medical University of Plovdiv, Plovdiv, Bulgaria
- Bulgarian Association for Promotion of Education and Science, Institute for Rare Disease, Plovdiv, Bulgaria
| | - Elena Mitova
- Bulgarian Association for Promotion of Education and Science, Institute for Rare Disease, Plovdiv, Bulgaria
| | | | | | - Josef Schepers
- Berlin Institute of Health (at) Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Miriam Hübner
- Berlin Institute of Health (at) Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Frauke Alves
- Translational Molecular Imaging, Max Planck Institute for Multidisciplinary Sciences, Göttingen, Germany
- Clinic of Hematology and Medical Oncology, University Medical Center, Göttingen, Germany
- Institute for Diagnostic and Interventional Radiology, University Medical Center, Göttingen, Germany
| | - Rowan Iskandar
- Swiss Institute for Translational and Entrepreneurial Medicine (sitem-insel), Bern, Switzerland
| | | | | | - Aneta Piperkova
- Bulgarian Association for Personalized Medicine, Sofia, Bulgaria
| | - Ivo Gut
- Centro Nacional de Analisis Genomico, CNAG, Barcelona, Spain
| | - Sergi Beltran
- Centro Nacional de Analisis Genomico, CNAG, Barcelona, Spain
| | | | - Marion Poetz
- Department of Strategy and Innovation, Copenhagen Business School, Copenhagen, Denmark
| | | | | | | | | | | | | | - Rita Selvatici
- Medical Genetics, Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - Marianna Farnè
- Medical Genetics, Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - Fernanda Fortunato
- Medical Genetics, Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - Alessandra Ferlini
- Medical Genetics, Department of Medical Sciences, University of Ferrara, Ferrara, Italy
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8
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Ischyropoulou M, Sabljo K, Schneider L, Niemeyer CM, Napp J, Feldmann C, Alves F. High-Load Gemcitabine Inorganic-Organic Hybrid Nanoparticles as an Image-Guided Tumor-Selective Drug-Delivery System to Treat Pancreatic Cancer. Adv Mater 2023; 35:e2305151. [PMID: 37587542 DOI: 10.1002/adma.202305151] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 08/15/2023] [Indexed: 08/18/2023]
Abstract
Pancreatic ductal adenocarcinoma (PDAC) has a devastating prognosis without effective treatment options. Thus, there is an urgent need for more effective and safe therapies. Here, inorganic-organic hybrid nanoparticles (GMP-IOH-NPs) are presented as a novel drug-delivery system for the selective delivery of extraordinarily high concentrations of gemcitabine monophosphate (GMP), not only to the primary tumor but also to metastatic sites. GMP-IOH-NPs have a composition of [ZrO]2+ [GMP]2 - with GMP as drug anion (76% of total IOH-NP mass). Multiscale fluorescence imaging confirms an efficient uptake in tumor cells, independent of the activity of the human-equilibrative-nucleoside transporter (hENT1), being responsible for gemcitabine (GEM) transport into cells and a key factor for GEM resistance. Delivering already phosphorylated GMP via GMP-IOH-NPs into tumor cells also allows the cellular resistance induced by the downregulation of deoxycytidine kinase to be overcome. GMP-IOH-NPs show high accumulation in tumor lesions and only minor liver trapping when given intraperitoneally. GMP-IOH-NPs result in a higher antitumor efficacy compared to free GEM, which is further enhanced applying cetuximab-functionalized GMP-CTX-IOH-NPs. By maximizing the therapeutic benefits with high drug load, tumor-specific delivery, minimizing undesired side effects, overcoming mechanisms of chemoresistance, and preventing systemic GEM inactivation, GMP-IOH-NPs are anticipated to have a high chance to significantly improve current PDAC-patient outcome.
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Affiliation(s)
- Myrto Ischyropoulou
- Department of Diagnostic and Interventional Radiology, University Medical Center Goettingen (UMG), Robert-Koch-Strasse 40, 37075, Goettingen, Germany
- Max Planck Institute for Multidisciplinary Sciences (MPI-NAT), Hermann-Rein-Strasse 3, 37075, Goettingen, Germany
| | - Kristina Sabljo
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology (KIT), Engesserstrasse 15, 76131, Karlsruhe, Germany
| | - Leonie Schneider
- Institute for Biological Interfaces 1, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Christof M Niemeyer
- Institute for Biological Interfaces 1, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Joanna Napp
- Department of Diagnostic and Interventional Radiology, University Medical Center Goettingen (UMG), Robert-Koch-Strasse 40, 37075, Goettingen, Germany
- Max Planck Institute for Multidisciplinary Sciences (MPI-NAT), Hermann-Rein-Strasse 3, 37075, Goettingen, Germany
| | - Claus Feldmann
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology (KIT), Engesserstrasse 15, 76131, Karlsruhe, Germany
| | - Frauke Alves
- Department of Diagnostic and Interventional Radiology, University Medical Center Goettingen (UMG), Robert-Koch-Strasse 40, 37075, Goettingen, Germany
- Max Planck Institute for Multidisciplinary Sciences (MPI-NAT), Hermann-Rein-Strasse 3, 37075, Goettingen, Germany
- Department of Haematology and Medical Oncology, University Medical Center Goettingen (UMG), Robert-Koch-Strasse 40, 37075, Goettingen, Germany
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9
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Khan A, Markus MA, Svetlove A, Hülsmann S, Alves F, Dullin C. Longitudinal x-ray based lung function measurement for monitoring Nintedanib treatment response in a mouse model of lung fibrosis. Sci Rep 2023; 13:18637. [PMID: 37903864 PMCID: PMC10616088 DOI: 10.1038/s41598-023-45305-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 10/18/2023] [Indexed: 11/01/2023] Open
Abstract
Lung fibrosis (LF) is a chronic progressive, incurable, and debilitating condition of the lung, which is associated with different lung disease. Treatment options are still sparse. Nintedanib, an oral tyrosine kinase inhibitor, significantly slows the LF progression. However, there is a strong need of further research and the development of novel therapies. In this study, we used a correlative set-up that combines X-ray based lung function (XLF) with microCT and whole body plethysmography (WBP) for a comprehensive functional and structural evaluation of lung fibrosis (LF) as well as for monitoring response to orally administered Nintedanib in the mouse model of bleomycin induced LF. The decline in lung function as early as one week after intratracheal bleomycin instillation was reliably detected by XLF, revealing the lowest decay rate in the LF mice compared to healthy ones. Simultaneously performed microCT and WBP measurements corroborated XLF findings by exhibiting reduced lung volume [Formula: see text] and tidal volume [Formula: see text]. In LF mice XLF also revealed profound improvement in lung function one week after Nintedanib treatment. This positive response to Nintedanib therapy was further substantiated by microCT and WBP measurements which also showed significantly improved [Formula: see text] and [Formula: see text] in the Nintedanib treated mice. By comparing the XLF data to structural features assessing the extent of fibrosis obtained by ex-vivo high-resolution synchrotron radiation-based imaging and classical histology we demonstrate that: (1) a simple low dose x-ray measurement like XLF is sensitive enough to pick up treatment response, (2) Nintedanib treatment successfully improved lung function in a bleomycin induced LF mouse model and (3) differences between the fully restored lung function and the partially reduced fibrotic burden compared to healthy and untreated mice. The presented analysis pipeline underlines the importance of a combined functional and anatomical readout to reliably measure treatment response and could easily be adapted to other preclinical lung disease models.
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Affiliation(s)
- Amara Khan
- Translational Molecular Imaging, Max Planck Institute for Multidisciplinary Sciences, Göttingen, Germany
| | - M Andrea Markus
- Translational Molecular Imaging, Max Planck Institute for Multidisciplinary Sciences, Göttingen, Germany
| | - Angelika Svetlove
- Translational Molecular Imaging, Max Planck Institute for Multidisciplinary Sciences, Göttingen, Germany
- Cluster of Excellence "Multiscale Bioimaging: from Molecular Machines to Networks of Excitable Cells" (MBExC), Göttingen, Germany
| | - Swen Hülsmann
- Department of Anesthesiology, University Medical Center, Göttingen, Germany
| | - Frauke Alves
- Translational Molecular Imaging, Max Planck Institute for Multidisciplinary Sciences, Göttingen, Germany
- Cluster of Excellence "Multiscale Bioimaging: from Molecular Machines to Networks of Excitable Cells" (MBExC), Göttingen, Germany
- Clinic of Hematology and Medical Oncology, University Medical Center, Göttingen, Germany
- Institute for Diagnostic and Interventional Radiology, University Medical Center, Göttingen, Germany
| | - Christian Dullin
- Translational Molecular Imaging, Max Planck Institute for Multidisciplinary Sciences, Göttingen, Germany.
- Institute for Diagnostic and Interventional Radiology, University Medical Center, Göttingen, Germany.
- Institute for Diagnostic and Interventional Radiology, University Hospital, Heidelberg, Germany.
- Translational Lung Research Center, Heidelberg, Germany.
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10
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Nolte P, Brettmacher M, Gröger CJ, Gellhaus T, Svetlove A, Schilling AF, Alves F, Rußmann C, Dullin C. Spatial correlation of 2D hard-tissue histology with 3D microCT scans through 3D printed phantoms. Sci Rep 2023; 13:18479. [PMID: 37898676 PMCID: PMC10613209 DOI: 10.1038/s41598-023-45518-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Accepted: 10/20/2023] [Indexed: 10/30/2023] Open
Abstract
Hard-tissue histology-the analysis of thin two-dimensional (2D) sections-is hampered by the opaque nature of most biological specimens, especially bone. Therefore, the cutting process cannot be assigned to regions of interest. In addition, the applied cutting-grinding method is characterized by significant material loss. As a result, relevant structures might be missed or destroyed, and 3D features can hardly be evaluated. Here, we present a novel workflow, based on conventual microCT scans of the specimen prior to the cutting process, to be used for the analysis of 3D structural features and for directing the sectioning process to the regions of interest. 3D printed fiducial markers, embedded together with the specimen in resin, are utilized to retrospectively register the obtained 2D histological images into the 3D anatomical context. This not only allows to identify the cutting position, but also enables the co-registration of the cell and extracellular matrix morphological analysis to local 3D information obtained from the microCT data. We have successfully applied our new approach to assess hard-tissue specimens of different species. After matching the predicted microCT cut plane with the histology image, we validated a high accuracy of the registration process by computing quality measures namely Jaccard and Dice similarity coefficients achieving an average score of 0.90 ± 0.04 and 0.95 ± 0.02, respectively. Thus, we believe that the novel, easy to implement correlative imaging approach holds great potential for improving the reliability and diagnostic power of classical hard-tissue histology.
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Affiliation(s)
- Philipp Nolte
- Faculty of Engineering and Health, University of Applied Sciences and Arts, Göttingen, Germany
- Institute for Diagnostic and Interventional Radiology, University Medical Center, Robert-Koch-Straße 40, 37075, Göttingen, Germany
| | - Marcel Brettmacher
- Faculty of Engineering and Health, University of Applied Sciences and Arts, Göttingen, Germany
| | - Chris Johann Gröger
- Faculty of Engineering and Health, University of Applied Sciences and Arts, Göttingen, Germany
| | - Tim Gellhaus
- Department of Oral and Maxillofacial Surgery, University Medical Center, Göttingen, Germany
| | - Angelika Svetlove
- Max Plank Institute for Multidisciplinary Sciences, Göttingen, Germany
| | - Arndt F Schilling
- Department of Trauma Surgery, Orthopedics and Plastic Surgery, University Medical Center, Göttingen, Germany
| | - Frauke Alves
- Institute for Diagnostic and Interventional Radiology, University Medical Center, Robert-Koch-Straße 40, 37075, Göttingen, Germany
- Max Plank Institute for Multidisciplinary Sciences, Göttingen, Germany
- Department of Haematology and Medical Oncology, University Medical Center, Göttingen, Germany
| | - Christoph Rußmann
- Faculty of Engineering and Health, University of Applied Sciences and Arts, Göttingen, Germany
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Christian Dullin
- Institute for Diagnostic and Interventional Radiology, University Medical Center, Robert-Koch-Straße 40, 37075, Göttingen, Germany.
- Max Plank Institute for Multidisciplinary Sciences, Göttingen, Germany.
- Department for Diagnostic and Interventional Radiology, University Hospital, Heidelberg, Germany.
- Translational Lung Research Center (TLRC), German Center for Lung Research (DZL), Heidelberg, Germany.
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11
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Markus MA, Ferrari DP, Alves F, Ramos-Gomes F. Effect of tissue fixation on the optical properties of structural components assessed by non-linear microscopy imaging. Biomed Opt Express 2023; 14:3988-4002. [PMID: 37799688 PMCID: PMC10549744 DOI: 10.1364/boe.488453] [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] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 04/20/2023] [Accepted: 04/25/2023] [Indexed: 10/07/2023]
Abstract
Fixation methods such as formalin are commonly used for the preservation of tissue with the aim of keeping their structure as close as possible to the native condition. However, fixatives chemically interact with tissue molecules, such as collagen in the extracellular matrix (ECM) or myosin, and may thus modify their structure. Taking advantage of the second- and third-harmonic generation (SHG and THG) emission capabilities of such components, we used nonlinear two-photon microscopy (NL2PM) to evaluate the effect that preservation methods, such as chemical fixatives, have on the nonlinear capabilities of protein components within mouse tissues. Our results show that depending on the preservation technique used, the nonlinear capabilities of collagen, lipid droplets and myosin microarchitecture are strongly affected. Parameters of collagen fibers, such as density and branch points, especially in collagen-sparse regions, e.g., in kidneys, were found to be altered upon formalin fixation. Moreover, cryo-freezing drastically reduced SHG signals from myosin. Our findings provide valuable information to select the best tissue fixation method for visualization and quantification of structural proteins, such as collagen and myosin by advanced NL2PM imaging techniques. This may advance the interpretation of the role these proteins play in disease.
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Affiliation(s)
- M. Andrea Markus
- Translational Molecular Imaging Group,
Max-Planck Institute for Multidisciplinary Sciences, Hermann-Rein-Str. 3, 37075 Göttingen, Germany
| | - Daniele P. Ferrari
- Translational Molecular Imaging Group,
Max-Planck Institute for Multidisciplinary Sciences, Hermann-Rein-Str. 3, 37075 Göttingen, Germany
| | - Frauke Alves
- Translational Molecular Imaging Group,
Max-Planck Institute for Multidisciplinary Sciences, Hermann-Rein-Str. 3, 37075 Göttingen, Germany
- Clinic of Haematology and Medical Oncology, Institute of Interventional and Diagnostic Radiology, University Medical Center Göttingen, Robert-Koch-Str. 40, 37075 Göttingen, Germany
- Cluster of Excellence “Multiscale Bioimaging: from Molecular Machines to Networks of Excitable Cells” (MBExC), Robert-Koch-Str. 40, 37075 Göttingen, Germany
| | - Fernanda Ramos-Gomes
- Translational Molecular Imaging Group,
Max-Planck Institute for Multidisciplinary Sciences, Hermann-Rein-Str. 3, 37075 Göttingen, Germany
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12
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Pinkert-Leetsch D, Frohn J, Ströbel P, Alves F, Salditt T, Missbach-Guentner J. Three-dimensional analysis of human pancreatic cancer specimens by phase-contrast based X-ray tomography - the next dimension of diagnosis. Cancer Imaging 2023; 23:43. [PMID: 37131262 PMCID: PMC10152799 DOI: 10.1186/s40644-023-00559-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Accepted: 04/19/2023] [Indexed: 05/04/2023] Open
Abstract
BACKGROUND The worldwide increase of pancreatic ductal adenocarcinoma (PDAC), which still has one of the lowest survival rates, requires novel imaging tools to improve early detection and to refine diagnosis. Therefore, the aim of this study was to assess the feasibility of propagation-based phase-contrast X-ray computed tomography of already paraffin-embedded and unlabeled human pancreatic tumor tissue to achieve a detailed three-dimensional (3D) view of the tumor sample in its entirety. METHODS Punch biopsies of areas of particular interest were taken from paraffin blocks after initial histological analysis of hematoxylin and eosin stained tumor sections. To cover the entire 3.5 mm diameter of the punch biopsy, nine individual tomograms with overlapping regions were acquired in a synchrotron parallel beam configuration and stitched together after data reconstruction. Due to the intrinsic contrast based on electron density differences of tissue components and a voxel size of 1.3 μm achieved PDAC and its precursors were clearly identified. RESULTS Characteristic tissue structures for PDAC and its precursors, such as dilated pancreatic ducts, altered ductal epithelium, diffuse immune cell infiltrations, increased occurrence of tumor stroma and perineural invasion were clearly identified. Certain structures of interest were visualized in three dimensions throughout the tissue punch. Pancreatic duct ectasia of different caliber and atypical shape as well as perineural infiltration could be contiguously traced by viewing serial tomographic slices and by applying semi-automatic segmentation. Histological validation of corresponding sections confirmed the former identified PDAC features. CONCLUSION In conclusion, virtual 3D histology via phase-contrast X-ray tomography visualizes diagnostically relevant tissue structures of PDAC in their entirety, preserving tissue integrity in label-free, paraffin embedded tissue biopsies. In the future, this will not only enable a more comprehensive diagnosis but also a possible identification of new 3D imaging tumor markers.
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Affiliation(s)
- Diana Pinkert-Leetsch
- Department of Diagnostic and Interventional Radiology, University Medical Center, Goettingen, Germany.
| | - Jasper Frohn
- Institute for X-ray Physics, Georg-August-University, Goettingen, Germany
| | - Philipp Ströbel
- Department of Pathology, University Medical Center, Goettingen, Germany
| | - Frauke Alves
- Department of Diagnostic and Interventional Radiology, University Medical Center, Goettingen, Germany
- Cluster of Excellence "Multiscale Bioimaging: from Molecular Machines to Networks of Excitable Cells" (MBExC), University of Goettingen, Goettingen, Germany
- Department of Hematology and Medical Oncology, University Medical Center, Goettingen, Germany
- Translational Molecular Imaging, Max-Planck-Institute for Multidisciplinary Sciences, Goettingen, Germany
| | - Tim Salditt
- Institute for X-ray Physics, Georg-August-University, Goettingen, Germany
- Cluster of Excellence "Multiscale Bioimaging: from Molecular Machines to Networks of Excitable Cells" (MBExC), University of Goettingen, Goettingen, Germany
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13
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Pantelaiou-Prokaki G, Reinhardt O, Georges NS, Agorku DJ, Hardt O, Prokakis E, Mieczkowska IK, Deppert W, Wegwitz F, Alves F. Basal-like mammary carcinomas stimulate cancer stem cell properties through AXL-signaling to induce chemotherapy resistance. Int J Cancer 2023; 152:1916-1932. [PMID: 36637144 DOI: 10.1002/ijc.34429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 12/16/2022] [Accepted: 12/19/2022] [Indexed: 01/14/2023]
Abstract
Basal-like breast cancer (BLBC) is the most aggressive and heterogeneous breast cancer (BC) subtype. Conventional chemotherapies represent next to surgery the most frequently employed treatment options. Unfortunately, resistant tumor phenotypes often develop, resulting in therapeutic failure. To identify the early events occurring upon the first drug application and initiating chemotherapy resistance in BLBC, we leveraged the WAP-T syngeneic mammary carcinoma mouse model and we developed a strategy combining magnetic-activated cell sorting (MACS)-based tumor cell enrichment with high-throughput transcriptome analyses. We discovered that chemotherapy induced a massive gene expression reprogramming toward stemness acquisition to tolerate and survive the cytotoxic treatment in vitro and in vivo. Retransplantation experiments revealed that one single cycle of cytotoxic drug combination therapy (Cyclophosphamide, Adriamycin and 5-Fluorouracil) suffices to induce resistant tumor cell phenotypes in vivo. We identified Axl and its ligand Pros1 as highly induced genes driving cancer stem cell (CSC) properties upon chemotherapy in vivo and in vitro. Furthermore, from our analysis of BLBC patient datasets, we found that AXL expression is also strongly correlated with CSC-gene signatures, a poor response to conventional therapies and worse survival outcomes in those patients. Finally, we demonstrate that AXL inhibition sensitized BLBC-cells to cytotoxic treatment in vitro. Together, our data support AXL as a promising therapeutic target to optimize the efficiency of conventional cytotoxic therapies in BLBC.
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Affiliation(s)
- Garyfallia Pantelaiou-Prokaki
- Max Planck Institute for Multidisciplinary Sciences, Translational Molecular Imaging, Göttingen, Germany.,Department of Gynecology and Obstetrics, University Medical Center Göttingen, Göttingen, Germany
| | - Oliver Reinhardt
- Max Planck Institute for Multidisciplinary Sciences, Translational Molecular Imaging, Göttingen, Germany
| | - Nadine S Georges
- Department of Gynecology and Obstetrics, University Medical Center Göttingen, Göttingen, Germany
| | - David J Agorku
- Miltenyi Biotec B.V. & Co. KG, R&D Reagents, Bergisch Gladbach, Germany
| | - Olaf Hardt
- Miltenyi Biotec B.V. & Co. KG, R&D Reagents, Bergisch Gladbach, Germany
| | - Evangelos Prokakis
- Department of Gynecology and Obstetrics, University Medical Center Göttingen, Göttingen, Germany
| | - Iga K Mieczkowska
- Department of General, Visceral and Pediatric Surgery, University Medical Center Göttingen, Göttingen, Germany
| | - Wolfgang Deppert
- University Medical Center Hamburg Eppendorf, Institute for Tumor Biology, University of Hamburg, Hamburg, Germany
| | - Florian Wegwitz
- Department of Gynecology and Obstetrics, University Medical Center Göttingen, Göttingen, Germany.,Department of General, Visceral and Pediatric Surgery, University Medical Center Göttingen, Göttingen, Germany
| | - Frauke Alves
- Max Planck Institute for Multidisciplinary Sciences, Translational Molecular Imaging, Göttingen, Germany.,Institute for Diagnostic and Interventional Radiology, University Medical Center Göttingen, Göttingen, Germany.,Clinic for Hematology and Medical Oncology, University Medical Center Göttingen, Göttingen, Germany
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14
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Alves F, Matos A, Cardoso JC. Papular Lesions With Blaschkoide Distribution in a 51-Year-Old Male. Actas Dermosifiliogr 2023; 114:T445-T446. [PMID: 37120074 DOI: 10.1016/j.ad.2021.08.022] [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] [Received: 06/01/2021] [Accepted: 08/09/2021] [Indexed: 05/01/2023] Open
Affiliation(s)
- F Alves
- Serviço de Dermatologia, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal.
| | - A Matos
- Serviço de Dermatologia, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
| | - J C Cardoso
- Serviço de Dermatologia, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
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15
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Albers J, Wagner WL, Fiedler MO, Rothermel A, Wünnemann F, Di Lillo F, Dreossi D, Sodini N, Baratella E, Confalonieri M, Arfelli F, Kalenka A, Lotz J, Biederer J, Wielpütz MO, Kauczor HU, Alves F, Tromba G, Dullin C. High resolution propagation-based lung imaging at clinically relevant X-ray dose levels. Sci Rep 2023; 13:4788. [PMID: 36959233 PMCID: PMC10036329 DOI: 10.1038/s41598-023-30870-y] [Citation(s) in RCA: 1] [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] [Received: 10/21/2022] [Accepted: 03/02/2023] [Indexed: 03/25/2023] Open
Abstract
Absorption-based clinical computed tomography (CT) is the current imaging method of choice in the diagnosis of lung diseases. Many pulmonary diseases are affecting microscopic structures of the lung, such as terminal bronchi, alveolar spaces, sublobular blood vessels or the pulmonary interstitial tissue. As spatial resolution in CT is limited by the clinically acceptable applied X-ray dose, a comprehensive diagnosis of conditions such as interstitial lung disease, idiopathic pulmonary fibrosis or the characterization of small pulmonary nodules is limited and may require additional validation by invasive lung biopsies. Propagation-based imaging (PBI) is a phase sensitive X-ray imaging technique capable of reaching high spatial resolutions at relatively low applied radiation dose levels. In this publication, we present technical refinements of PBI for the characterization of different artificial lung pathologies, mimicking clinically relevant patterns in ventilated fresh porcine lungs in a human-scale chest phantom. The combination of a very large propagation distance of 10.7 m and a photon counting detector with [Formula: see text] pixel size enabled high resolution PBI CT with significantly improved dose efficiency, measured by thermoluminescence detectors. Image quality was directly compared with state-of-the-art clinical CT. PBI with increased propagation distance was found to provide improved image quality at the same or even lower X-ray dose levels than clinical CT. By combining PBI with iodine k-edge subtraction imaging we further demonstrate that, the high quality of the calculated iodine concentration maps might be a potential tool for the analysis of lung perfusion in great detail. Our results indicate PBI to be of great value for accurate diagnosis of lung disease in patients as it allows to depict pathological lesions non-invasively at high resolution in 3D. This will especially benefit patients at high risk of complications from invasive lung biopsies such as in the setting of suspected idiopathic pulmonary fibrosis (IPF).
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Affiliation(s)
- Jonas Albers
- Department for Diagnostic and Interventional Radiology, University Medical Center Goettingen, Goettingen, Germany
- Biological X-ray imaging, European Molecular Biology Laboratory, Hamburg Unit c/o DESY, Hamburg, Germany
| | - Willi L Wagner
- Diagnostic and Interventional Radiology, University Hospital Heidelberg, Heidelberg, Germany
- Translational Lung Research Center (TLRC), German Center for Lung Research (DZL), University Heidelberg, Heidelberg, Germany
| | - Mascha O Fiedler
- Translational Lung Research Center (TLRC), German Center for Lung Research (DZL), University Heidelberg, Heidelberg, Germany
- Department of Anaesthesiology, Heidelberg University Hospital, Heidelberg, Germany
| | - Anne Rothermel
- Diagnostic and Interventional Radiology, University Hospital Heidelberg, Heidelberg, Germany
- Translational Lung Research Center (TLRC), German Center for Lung Research (DZL), University Heidelberg, Heidelberg, Germany
| | - Felix Wünnemann
- Diagnostic and Interventional Radiology, University Hospital Heidelberg, Heidelberg, Germany
- Translational Lung Research Center (TLRC), German Center for Lung Research (DZL), University Heidelberg, Heidelberg, Germany
| | | | - Diego Dreossi
- Elettra-Sincrotrone Trieste S.C.p.A., Trieste, Italy
| | - Nicola Sodini
- Elettra-Sincrotrone Trieste S.C.p.A., Trieste, Italy
| | - Elisa Baratella
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Trieste, Italy
| | | | - Fulvia Arfelli
- Department of Physics, University of Trieste and INFN, Trieste, Italy
| | - Armin Kalenka
- Translational Lung Research Center (TLRC), German Center for Lung Research (DZL), University Heidelberg, Heidelberg, Germany
- Department of Anaesthesiology and Intensive Care Medicine, District Hospital Bergstrasse, Heppenheim, Germany
- Faculty of Medicine, University of Heidelberg, Heidelberg, Germany
| | - Joachim Lotz
- Department for Diagnostic and Interventional Radiology, University Medical Center Goettingen, Goettingen, Germany
| | - Jürgen Biederer
- Diagnostic and Interventional Radiology, University Hospital Heidelberg, Heidelberg, Germany
- Translational Lung Research Center (TLRC), German Center for Lung Research (DZL), University Heidelberg, Heidelberg, Germany
- Faculty of Medicine, Christian-Albrechts-Universität zu Kiel, Kiel, Germany
- Faculty of Medicine, University of Latvia, Riga, Latvia
| | - Mark O Wielpütz
- Diagnostic and Interventional Radiology, University Hospital Heidelberg, Heidelberg, Germany
- Translational Lung Research Center (TLRC), German Center for Lung Research (DZL), University Heidelberg, Heidelberg, Germany
| | - Hans-Ulrich Kauczor
- Diagnostic and Interventional Radiology, University Hospital Heidelberg, Heidelberg, Germany
- Translational Lung Research Center (TLRC), German Center for Lung Research (DZL), University Heidelberg, Heidelberg, Germany
| | - Frauke Alves
- Department for Diagnostic and Interventional Radiology, University Medical Center Goettingen, Goettingen, Germany
- Department for Haematology and Medical Oncology, University Medical Center Goettingen, Goettingen, Germany
- Translational Molecular Imaging, Max-Plank-Institute for Multidisciplinary Sciences, Goettingen, Germany
| | | | - Christian Dullin
- Department for Diagnostic and Interventional Radiology, University Medical Center Goettingen, Goettingen, Germany.
- Diagnostic and Interventional Radiology, University Hospital Heidelberg, Heidelberg, Germany.
- Translational Lung Research Center (TLRC), German Center for Lung Research (DZL), University Heidelberg, Heidelberg, Germany.
- Translational Molecular Imaging, Max-Plank-Institute for Multidisciplinary Sciences, Goettingen, Germany.
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16
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Czaplinska D, Ialchina R, Andersen HB, Yao J, Stigliani A, Dannesboe J, Flinck M, Chen X, Mitrega J, Gnosa SP, Dmytriyeva O, Alves F, Napp J, Sandelin A, Pedersen SF. Crosstalk between tumor acidosis, p53 and extracellular matrix regulates pancreatic cancer aggressiveness. Int J Cancer 2023; 152:1210-1225. [PMID: 36408933 PMCID: PMC10108304 DOI: 10.1002/ijc.34367] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 04/15/2022] [Revised: 10/14/2022] [Accepted: 11/07/2022] [Indexed: 11/22/2022]
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is an extremely aggressive malignancy with minimal treatment options and a global rise in prevalence. PDAC is characterized by frequent driver mutations including KRAS and TP53 (p53), and a dense, acidic tumor microenvironment (TME). The relation between genotype and TME in PDAC development is unknown. Strikingly, when wild type (WT) Panc02 PDAC cells were adapted to growth in an acidic TME and returned to normal pH to mimic invasive cells escaping acidic regions, they displayed a strong increase of aggressive traits such as increased growth in 3-dimensional (3D) culture, adhesion-independent colony formation and invasive outgrowth. This pattern of acidosis-induced aggressiveness was observed in 3D spheroid culture as well as upon organotypic growth in matrigel, collagen-I and combination thereof, mimicking early and later stages of PDAC development. Acid-adaptation-induced gain of cancerous traits was further increased by p53 knockout (KO), but only in specific extracellular matrix (ECM) compositions. Akt- and Transforming growth factor-β (TGFβ) signaling, as well as expression of the Na+ /H+ exchanger NHE1, were increased by acid adaptation. Whereas Akt inhibition decreased spheroid growth regardless of treatment and genotype, stimulation with TGFβI increased growth of WT control spheroids, and inhibition of TGFβ signaling tended to limit growth under acidic conditions only. Our results indicate that a complex crosstalk between tumor acidosis, ECM composition and genotype contributes to PDAC development. The findings may guide future strategies for acidosis-targeted therapies.
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Affiliation(s)
- Dominika Czaplinska
- Section for Cell Biology and Physiology, Department of Biology, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
| | - Renata Ialchina
- Section for Cell Biology and Physiology, Department of Biology, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
| | - Henriette Berg Andersen
- Section for Cell Biology and Physiology, Department of Biology, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
| | - Jiayi Yao
- Section for Computational and RNA Biology, Department of Biology, Faculty of Science, University of Copenhagen, Copenhagen, Denmark.,Biotech Research and Innovation Centre (BRIC), Faculty of Health, University of Copenhagen, Copenhagen, Denmark
| | - Arnaud Stigliani
- Section for Computational and RNA Biology, Department of Biology, Faculty of Science, University of Copenhagen, Copenhagen, Denmark.,Biotech Research and Innovation Centre (BRIC), Faculty of Health, University of Copenhagen, Copenhagen, Denmark
| | - Johs Dannesboe
- Section for Cell Biology and Physiology, Department of Biology, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
| | - Mette Flinck
- Section for Cell Biology and Physiology, Department of Biology, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
| | - Xiaoming Chen
- Section for Cell Biology and Physiology, Department of Biology, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
| | - Jakub Mitrega
- Max-Planck-Institute for Multidisciplinary Sciences, Goettingen, Germany.,Institute for Diagnostic and Interventional Radiology, University Medical Center Goettingen, Goettingen, Germany
| | - Sebastian Peter Gnosa
- Biotech Research and Innovation Centre (BRIC), Faculty of Health, University of Copenhagen, Copenhagen, Denmark
| | - Oksana Dmytriyeva
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health, University of Copenhagen, Copenhagen, Denmark
| | - Frauke Alves
- Max-Planck-Institute for Multidisciplinary Sciences, Goettingen, Germany.,Institute for Diagnostic and Interventional Radiology, University Medical Center Goettingen, Goettingen, Germany.,Clinic of Haematology and Medical Oncology, University Medical Center Goettingen, Goettingen, Germany
| | - Joanna Napp
- Max-Planck-Institute for Multidisciplinary Sciences, Goettingen, Germany.,Institute for Diagnostic and Interventional Radiology, University Medical Center Goettingen, Goettingen, Germany.,Clinic of Haematology and Medical Oncology, University Medical Center Goettingen, Goettingen, Germany
| | - Albin Sandelin
- Section for Computational and RNA Biology, Department of Biology, Faculty of Science, University of Copenhagen, Copenhagen, Denmark.,Biotech Research and Innovation Centre (BRIC), Faculty of Health, University of Copenhagen, Copenhagen, Denmark
| | - Stine Falsig Pedersen
- Section for Cell Biology and Physiology, Department of Biology, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
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17
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Stojanovic D, McLennan E, Olah G, Cobden M, Heinsohn R, Manning AD, Alves F, Hogg C, Rayner L. Reproductive skew in a Vulnerable bird favors breeders that monopolize nest cavities. Anim Conserv 2023. [DOI: 10.1111/acv.12855] [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: 01/31/2023]
Affiliation(s)
- D. Stojanovic
- Fenner School of Environment and Society Australian National University Canberra Australia
| | - E. McLennan
- School of Life & Environmental Sciences The University of Sydney Sydney New South Wales Australia
| | - G. Olah
- Fenner School of Environment and Society Australian National University Canberra Australia
| | - M. Cobden
- Fenner School of Environment and Society Australian National University Canberra Australia
| | - R. Heinsohn
- Fenner School of Environment and Society Australian National University Canberra Australia
| | - A. D. Manning
- Fenner School of Environment and Society Australian National University Canberra Australia
| | - F. Alves
- Fenner School of Environment and Society Australian National University Canberra Australia
| | - C. Hogg
- School of Life & Environmental Sciences The University of Sydney Sydney New South Wales Australia
| | - L. Rayner
- ACT Parks and Conservation Service, Australian Capital Territory Government Canberra Australia
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18
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Khorenko M, Pfeifer J, Napp J, Meschkov A, Alves F, Schepers U, Feldmann C. Theranostic Inorganic-Organic Hybrid Nanoparticles with a Cocktail of Chemotherapeutic and Cytostatic Drugs. J Mater Chem B 2023; 11:3635-3649. [PMID: 37017673 DOI: 10.1039/d3tb00226h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
Abstract
Theranostic inorganic-organic hybrid nanoparticles (IOH-NPs) with a cocktail of chemotherapeutic and cytostatic drugs and a composition Gd3+2[(PMX)0.5(EMP)0.5]2–3, [Gd(OH)]2+[(PMX)0.74(AlPCS4)0.13]2–, or [Gd(OH)]2+[(PMX)0.70(TPPS4)0.15]2– (PMX: pemetrexed, EMP: estramustine phosphate, AlPCS4: aluminum(III) chlorido phthalocyanine tetrasulfonate,...
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Affiliation(s)
- Mikhail Khorenko
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology (KIT), Engesserstraße 15, 76131 Karlsruhe, Germany.
| | - Juliana Pfeifer
- Institute of Functional Interfaces, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany.
| | - Joanna Napp
- University Medical Center Goettingen (UMG), Institute for Diagnostic and Interventional Radiology, Robert Koch Str. 40, 37075 Goettingen, Germany.
- Max Planck Institute for Multidisciplinary Sciences, Translational Molecular Imaging, City campus, Hermann-Rein-Strasse 3, 37075 Göttingen, Germany
| | - Anna Meschkov
- Institute of Functional Interfaces, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany.
- Institute of Organic Chemistry, Karlsruhe Institute of Technology (KIT), Fritz-Haber Weg 6, 76131 Karlsruhe, Germany
| | - Frauke Alves
- University Medical Center Goettingen (UMG), Institute for Diagnostic and Interventional Radiology, Robert Koch Str. 40, 37075 Goettingen, Germany.
- Max Planck Institute for Multidisciplinary Sciences, Translational Molecular Imaging, City campus, Hermann-Rein-Strasse 3, 37075 Göttingen, Germany
| | - Ute Schepers
- Institute of Functional Interfaces, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany.
- Institute of Organic Chemistry, Karlsruhe Institute of Technology (KIT), Fritz-Haber Weg 6, 76131 Karlsruhe, Germany
| | - Claus Feldmann
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology (KIT), Engesserstraße 15, 76131 Karlsruhe, Germany.
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19
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Khan A, Baig FK, Gomes FR, Markus A, Brečić B, Tiburcy M, Zimmermann WH, Alves F. Label-free imaging of engineered human myocardium (EHM) overtime for comprehensive structural characterization using non-linear optical microscopy (NLOM). J Mol Cell Cardiol 2022. [DOI: 10.1016/j.yjmcc.2022.08.336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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20
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Ritschel C, Napp J, Alves F, Feldmann C. Monitoring nanoparticle dissolution via fluorescence-colour shift. Nanoscale 2022; 14:16249-16255. [PMID: 36285794 DOI: 10.1039/d2nr03078k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
[La(OH)]2+[ICG]-2 and [La(OH)]2+2[PTC]4- inorganic-organic hybrid nanoparticles (IOH-NPs) with indocyanine green (ICG) and perylene-3,4,9,10-tetracarboxylate (PTC) as fluorescent dye anions are used for emission-based monitoring of the dissolution of nanoparticles. Whereas ICG shows a deep red emission in the solid [La(OH)]2+[ICG]-2 IOH-NPs, the emission of PTC in the solid [La(OH)]2+2[PTC]4- IOH-NPs is completely quenched due to π-stacking. After nanoparticle dissolution, the emission of freely dissolved ICG is weak, whereas freely dissolved PTC shows intense green emission. We report on the synthesis of IOH-NPs and nanoparticle characterization as well as on the fluorescence properties and how to avoid undesirable energy transfer between different fluorescent dyes. The emission shift from red (intact solid nanoparticles) to green (freely dissolved dye anions), indicating nanoparticle dissolution, is shown for aqueous systems and verified in vitro. Based on this first proof-of-the-concept, the IOH-NP marker system can be interesting to monitor nanoparticle dissolution in cells and tissues of small animals and to evaluate cell processes and/or drug-delivery strategies.
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Affiliation(s)
- Christian Ritschel
- Institute for Inorganic Chemistry, Karlsruhe Institute of Technology (KIT), Engesserstrasse 15, 76131 Karlsruhe, Germany.
| | - Joanna Napp
- University Medical Center Goettingen (UMG), Institute for Diagnostic and Interventional Radiology, Robert Koch Str. 40, 37075 Goettingen, Germany
- Max Planck Institute for Multidisciplinary Sciences, Translational Molecular Imaging, Hermann-Rein-Strasse 3, 37075 Goettingen, Germany.
| | - Frauke Alves
- University Medical Center Goettingen (UMG), Institute for Diagnostic and Interventional Radiology, Robert Koch Str. 40, 37075 Goettingen, Germany
- Max Planck Institute for Multidisciplinary Sciences, Translational Molecular Imaging, Hermann-Rein-Strasse 3, 37075 Goettingen, Germany.
| | - Claus Feldmann
- Institute for Inorganic Chemistry, Karlsruhe Institute of Technology (KIT), Engesserstrasse 15, 76131 Karlsruhe, Germany.
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21
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Nolte P, Dullin C, Svetlove A, Brettmacher M, Rußmann C, Schilling AF, Alves F, Stock B. Current Approaches for Image Fusion of Histological Data with Computed Tomography and Magnetic Resonance Imaging. Radiol Res Pract 2022; 2022:6765895. [PMID: 36408297 PMCID: PMC9668453 DOI: 10.1155/2022/6765895] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 08/17/2022] [Indexed: 10/30/2023] Open
Abstract
Classical analysis of biological samples requires the destruction of the tissue's integrity by cutting or grinding it down to thin slices for (Immuno)-histochemical staining and microscopic analysis. Despite high specificity, encoded in the stained 2D section of the whole tissue, the structural information, especially 3D information, is limited. Computed tomography (CT) or magnetic resonance imaging (MRI) scans performed prior to sectioning in combination with image registration algorithms provide an opportunity to regain access to morphological characteristics as well as to relate histological findings to the 3D structure of the local tissue environment. This review provides a summary of prevalent literature addressing the problem of multimodal coregistration of hard- and soft-tissue in microscopy and tomography. Grouped according to the complexity of the dimensions, including image-to-volume (2D ⟶ 3D), image-to-image (2D ⟶ 2D), and volume-to-volume (3D ⟶ 3D), selected currently applied approaches are investigated by comparing the method accuracy with respect to the limiting resolution of the tomography. Correlation of multimodal imaging could position itself as a useful tool allowing for precise histological diagnostic and allow the a priori planning of tissue extraction like biopsies.
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Affiliation(s)
- Philipp Nolte
- Faculty of Engineering and Health, University of Applied Sciences and Arts, Goettingen 37085, Germany
- Institute for Diagnostic and Interventional Radiology, University Medical Center Goettingen, Goettingen 37075, Germany
- Department of Trauma Surgery, Orthopedics and Plastic Surgery, University Medical Center Goettingen, Gottingen 37075, Germany
| | - Christian Dullin
- Institute for Diagnostic and Interventional Radiology, University Medical Center Goettingen, Goettingen 37075, Germany
- Translational Molecular Imaging, Max-Planck Institute for Multidisciplinary Sciences, City Campus, 37075 Goettingen, Germany
- Department for Diagnostic and Interventional Radiology, University Hospital Heidelberg, Heidelberg 69120, Germany
| | - Angelika Svetlove
- Institute for Diagnostic and Interventional Radiology, University Medical Center Goettingen, Goettingen 37075, Germany
- Translational Molecular Imaging, Max-Planck Institute for Multidisciplinary Sciences, City Campus, 37075 Goettingen, Germany
| | - Marcel Brettmacher
- Faculty of Engineering and Health, University of Applied Sciences and Arts, Goettingen 37085, Germany
| | - Christoph Rußmann
- Faculty of Engineering and Health, University of Applied Sciences and Arts, Goettingen 37085, Germany
- Brigham and Women's Hospital, Harvard Medical School, Boston 02155, MA, USA
| | - Arndt F. Schilling
- Department of Trauma Surgery, Orthopedics and Plastic Surgery, University Medical Center Goettingen, Gottingen 37075, Germany
| | - Frauke Alves
- Institute for Diagnostic and Interventional Radiology, University Medical Center Goettingen, Goettingen 37075, Germany
- Translational Molecular Imaging, Max-Planck Institute for Multidisciplinary Sciences, City Campus, 37075 Goettingen, Germany
| | - Bernd Stock
- Faculty of Engineering and Health, University of Applied Sciences and Arts, Goettingen 37085, Germany
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22
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Pinkert-Leetsch D, Rost JU, Schmiedeknecht MUH, Stadelmann C, Alves F, Missbach-Guentner J. The murine male reproductive organ at a glance: Three-dimensional insights and virtual histology using label-free light sheet microcopy. Andrology 2022; 10:1660-1672. [PMID: 36082398 DOI: 10.1111/andr.13292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 08/16/2022] [Accepted: 09/05/2022] [Indexed: 11/26/2022]
Abstract
BACKGROUND The unique anatomy of the male reproductive organ reflects its complex function from sperm maturation to their storage for months until emission. Since light microscopy in two dimensions (2d) cannot sufficiently demonstrate its complex morphology, a comprehensive visualization is required to identify pathologic alterations in its entire anatomical context. OBJECTIVES Aim of this study was to use three-dimensional (3d) light sheet fluorescence microscopy (LSFM) to visualize entire murine testes in 3d, label-free and at subcellular resolution, and to assign local autofluorescence to testicular and deferent structures. MATERIALS AND METHODS Murine testes were fixed with four different fixatives and subsequently cleared with benzoic acid/benzyl benzoate. Hereafter, complete murine testes were scanned with LSFM with different fluorescence filter sets and subsequently embedded in paraffin for further conventional planar histology. RESULTS Autofluorescence signals of the murine reproductive organ allowed the unambiguous identification of the testicular anatomy from the seminiferous tubules to the vas deferens with their specific stratification independent of the used fixative. Blood vessels were visualized from the pampiniform plexus to the small capillaries of single tubules. Moreover, due to the specific intrinsic fluorescence properties of the efferent ducts and the epididymis, luminal caliber, the epithelial stratification and retronuclear cytoplasmic inclusions gave a unique insight into the interface of both morphological structures. Subsequent 2d histology confirmed the identified morphological structures. DISCUSSION LSFM analysis of the murine reproductive organ allows due to its intrinsic fluorescence a simple, label-free 3d assessment of its entire duct morphology, the epithelial composition and the associated blood supply in its anatomical relation. CONCLUSION LSFM provides the technical basis for comprehensive analyses of pathologically altered murine testes in its entirety by depicting specific autofluorescence. Thereby it facilitates mouse studies of testicular disease or their drug related alterations in more detail potentially for clinical translation assessing human testicular biopsies. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Diana Pinkert-Leetsch
- Department of Diagnostic and Interventional Radiology, University Medical Center Goettingen, Goettingen, Germany.,Translational Molecular Imaging, Max-Planck-Institute for Multidisciplinary Sciences, Goettingen, Germany
| | - John Uwe Rost
- Department of Diagnostic and Interventional Radiology, University Medical Center Goettingen, Goettingen, Germany
| | | | - Christine Stadelmann
- Department of Neuropathology, University Medical Center Goettingen, Goettingen, Germany.,Cluster of Excellence "Multiscale Bioimaging: from Molecular Machines to Networks of Excitable Cells" (MBExC), University of Goettingen, Germany
| | - Frauke Alves
- Department of Diagnostic and Interventional Radiology, University Medical Center Goettingen, Goettingen, Germany.,Translational Molecular Imaging, Max-Planck-Institute for Multidisciplinary Sciences, Goettingen, Germany.,Department of Hematology and Medical Oncology, University Medical Center Goettingen, Goettingen, Germany.,Cluster of Excellence "Multiscale Bioimaging: from Molecular Machines to Networks of Excitable Cells" (MBExC), University of Goettingen, Germany
| | - Jeannine Missbach-Guentner
- Department of Diagnostic and Interventional Radiology, University Medical Center Goettingen, Goettingen, Germany
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23
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Alves F, Matos A, Cardoso JC. Papular Lesions With Blaschkoide Distribution in a 51-Year-Old Male. Actas Dermosifiliogr 2022; 114:445-446. [PMID: 36075402 DOI: 10.1016/j.ad.2021.08.017] [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] [Received: 06/01/2021] [Revised: 07/30/2021] [Accepted: 08/09/2021] [Indexed: 04/28/2023] Open
Affiliation(s)
- F Alves
- Serviço de Dermatologia, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal.
| | - A Matos
- Serviço de Dermatologia, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
| | - J C Cardoso
- Serviço de Dermatologia, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
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24
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Werner M, Dyas A, Parfentev I, Schmidt GE, Mieczkowska IK, Müller-Kirschbaum LC, Müller C, Kalkhof S, Reinhardt O, Urlaub H, Alves F, Gallwas J, Prokakis E, Wegwitz F. ROBO3s: a novel ROBO3 short isoform promoting breast cancer aggressiveness. Cell Death Dis 2022; 13:762. [PMID: 36057630 PMCID: PMC9440919 DOI: 10.1038/s41419-022-05197-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 08/12/2022] [Accepted: 08/17/2022] [Indexed: 01/21/2023]
Abstract
Basal-like breast cancer (BLBC) is a highly aggressive breast cancer subtype frequently associated with poor prognosis. Due to the scarcity of targeted treatment options, conventional cytotoxic chemotherapies frequently remain the standard of care. Unfortunately, their efficacy is limited as BLBC malignancies rapidly develop resistant phenotypes. Using transcriptomic and proteomic approaches in human and murine BLBC cells, we aimed to elucidate the molecular mechanisms underlying the acquisition of aggressive and chemotherapy-resistant phenotypes in these mammary tumors. Specifically, we identified and characterized a novel short isoform of Roundabout Guidance Receptor 3 (ROBO3s), upregulated in BLBC in response to chemotherapy and encoding for a protein variant lacking the transmembrane domain. We established an important role for the ROBO3s isoform, mediating cancer stem cell properties by stimulating the Hippo-YAP signaling pathway, and thus driving resistance of BLBC cells to cytotoxic drugs. By uncovering the conservation of ROBO3s expression across multiple cancer types, as well as its association with reduced BLBC-patient survival, we emphasize its potential as a prognostic marker and identify a novel attractive target for anti-cancer drug development.
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Affiliation(s)
- Marcel Werner
- grid.411984.10000 0001 0482 5331Department of General, Visceral and Pediatric Surgery, University Medical Center Göttingen, Göttingen, Germany ,grid.4567.00000 0004 0483 2525Chromosome Dynamics and Genome Stability, Institute of Epigenetics and Stem Cells, Helmholtz Zentrum München, Munich, Germany
| | - Anna Dyas
- grid.411984.10000 0001 0482 5331Department of General, Visceral and Pediatric Surgery, University Medical Center Göttingen, Göttingen, Germany ,grid.4372.20000 0001 2105 1091International Max-Planck Research School for Molecular Biology, Göttingen, Germany ,Early Cancer Institute, University of Cambridge, Department of Oncology, Hutchison Research Centre, Box 197 Cambridge Biomedical Campus, Cambridge, Germany
| | - Iwan Parfentev
- grid.4372.20000 0001 2105 1091Bioanalytical Mass Spectrometry group, Max Planck Institute for Multidisciplinary Sciences, Göttingen, Germany
| | - Geske E. Schmidt
- grid.411984.10000 0001 0482 5331Department of Gastroenterology, Gastrointestinal Oncology and Endocrinology, University Medical Center Göttingen, Göttingen, Germany
| | - Iga K. Mieczkowska
- grid.411984.10000 0001 0482 5331Department of General, Visceral and Pediatric Surgery, University Medical Center Göttingen, Göttingen, Germany
| | - Lukas C. Müller-Kirschbaum
- grid.411984.10000 0001 0482 5331Department of General, Visceral and Pediatric Surgery, University Medical Center Göttingen, Göttingen, Germany
| | - Claudia Müller
- grid.418008.50000 0004 0494 3022Department of Preclinical Development and Validation, Fraunhofer Institute for Cell Therapy and Immunology, Leipzig, Germany
| | - Stefan Kalkhof
- grid.418008.50000 0004 0494 3022Department of Preclinical Development and Validation, Fraunhofer Institute for Cell Therapy and Immunology, Leipzig, Germany
| | - Oliver Reinhardt
- grid.4372.20000 0001 2105 1091Translational Molecular Imaging, Max-Planck Institute for Multidisciplinary Sciences, Göttingen, Germany
| | - Henning Urlaub
- grid.4372.20000 0001 2105 1091Bioanalytical Mass Spectrometry group, Max Planck Institute for Multidisciplinary Sciences, Göttingen, Germany ,grid.411984.10000 0001 0482 5331Bioanalytics, Institute of Clinical Chemistry, University Medical Center Göttingen, Göttingen, Germany
| | - Frauke Alves
- grid.4372.20000 0001 2105 1091Translational Molecular Imaging, Max-Planck Institute for Multidisciplinary Sciences, Göttingen, Germany ,grid.411984.10000 0001 0482 5331Department of Hematology and Medical Oncology, University Medicine Goettingen, Göttingen, Germany
| | - Julia Gallwas
- grid.411984.10000 0001 0482 5331Department of Gynecology and Obstetrics, University Medical Center Göttingen, Göttingen, Germany
| | - Evangelos Prokakis
- grid.411984.10000 0001 0482 5331Department of Gynecology and Obstetrics, University Medical Center Göttingen, Göttingen, Germany
| | - Florian Wegwitz
- grid.411984.10000 0001 0482 5331Department of Gynecology and Obstetrics, University Medical Center Göttingen, Göttingen, Germany
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25
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Braz GF, Heinemann MB, Reis JKP, Teixeira BM, Cruz JCM, Rajão DS, Oliveira FG, Alves F, Castro RS, Leite RC, Valas S. Genetic and antigenic characterization of Brazilian SRLV strains: Natural small ruminant interspecies transmission from mixed herds. Infect Genet Evol 2022; 103:105322. [PMID: 35753623 DOI: 10.1016/j.meegid.2022.105322] [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] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 03/27/2022] [Accepted: 06/20/2022] [Indexed: 06/15/2023]
Abstract
Cross-species transmission events and mixed infection of small ruminant lentiviruses (SRLVs) were studied in seven goats and two sheep from three small ruminant mixed flocks from Northeast and Southeast Brazil. Genetic and antigenic analyses with gag/env genes and ELISA multiepitope SU1/SU5 recombinant antigens were carried out, respectively. The genetic analysis of gag and env sequences showed high viral diversity in both species, MVV-like (subtype A1) and CAEV-like B1 in goats, and CAEV-like (subtype B1) in sheep, revealing SRLV interspecies transmission from sheep to goats and vice versa in Brazilian farms. Two Brazilian caprine lentiviruses were segregated in two new genetic clades based on gag analyses, which suggests a new classification into heterogenic genotype A. Furthermore, goat isolates were grouped into subtype A1 and B1 clusters. Cross-reactive antibodies were detected in goats using ELISA with a recombinant antigen carrying SU1 and SU5 immunodominant epitopes; the results showed anti-CAEV and MVV antibodies in goats and anti-CAEV antibodies in sheep. This result can be associated with the high divergence in the V4 region due to SRLV variability. All results confirm cross-species infection of SRLV in Brazilian mixed herds.
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Affiliation(s)
- G F Braz
- Curso de Medicina Veterinária, Centro Universitário INTA-UNINTA, Brazil.
| | - M B Heinemann
- Departamento de Medicina Veterinária Preventiva e Saúde Animal, Faculdade de Medicina Veterinária e Zootecnia, USP, Brazil.
| | - J K P Reis
- Laboratório de Retroviroses, Departamento de Medicina Veterinária Preventiva, Escola de Veterinária, UFMG, Brazil.
| | - B M Teixeira
- Curso de Medicina Veterinária, Centro Universitário INTA-UNINTA, Brazil
| | - J C M Cruz
- Curso de Medicina Veterinária, Centro Universitário INTA-UNINTA, Brazil
| | - D S Rajão
- Virus and Prion Research Unit, National Animal Disease Center, USDA-ARS, United States.
| | | | - F Alves
- Departamento de Fisiologia e Biofísica - ICB, UFMG, Brazil.
| | - R S Castro
- Departamento de Medicina Veterinária, UFRPE, Brazil.
| | - R C Leite
- Laboratório de Retroviroses, Departamento de Medicina Veterinária Preventiva, Escola de Veterinária, UFMG, Brazil
| | - S Valas
- Agence Française de Sécurité Sanitaire des Aliments - ANSES, Niort Laboratory, France
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Dullin C, Svetlove A, Zschüntzsch J, Alves F. Simultaneous assessment of lung morphology and respiratory motion in retrospectively gated in-vivo microCT of free breathing anesthetized mice. Sci Rep 2022; 12:13299. [PMID: 35918439 PMCID: PMC9345384 DOI: 10.1038/s41598-022-17335-4] [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: 02/26/2022] [Accepted: 07/25/2022] [Indexed: 11/26/2022] Open
Abstract
Retrospective gating (RG) is a well established technique in preclinical computed tomography (CT) to assess 3D morphology of the lung. In RG additional angular projections are recorded typically by performing multiple rotations. Consequently, the projections are sorted according to the expansion state of the chest and those sets are then reconstructed separately. Thus, the breathing motion artefacts are suppressed at a cost of strongly elevated X-ray dose levels. Here we propose to use the entire raw data to assess respiratory motion in addition to retrospectively gated 3D reconstruction that visualize anatomical structures of the lung. Using this RG based X-ray respiratory motion measurement approach, which will be referred to as RG based X-ray lung function measurement (rgXLF) on the example of the mdx mouse model of Duchenne muscle dystrophy (mdx) we accurately obtained both the 3D anatomical morphology of the lung and the thoracic bones as well as functional temporal parameters of the lung. Thus, rgXLF will remove the necessity for separate acquisition procedures by being able to reproduce comparable results to the previously established planar X-ray based lung function measurement approach in a single low dose CT scan.
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Affiliation(s)
- Christian Dullin
- Institute for Diagnostic and Interventional Radiology, University Medical Center Goettingen, Goettingen, Germany. .,Max-Plank-Institute for Multidisciplinary Sciences, Translational Molecular Imaging, Goettingen, Germany. .,Institute for Diagnostic and Interventional Radiology, University Hospital Heidelberg, Heidelberg, Germany.
| | - Angelika Svetlove
- Max-Plank-Institute for Multidisciplinary Sciences, Translational Molecular Imaging, Goettingen, Germany
| | - Jana Zschüntzsch
- Clinic for Neurology, University Medical Center Goettingen, Göettingen, Germany
| | - Frauke Alves
- Institute for Diagnostic and Interventional Radiology, University Medical Center Goettingen, Goettingen, Germany.,Max-Plank-Institute for Multidisciplinary Sciences, Translational Molecular Imaging, Goettingen, Germany.,Clinic for Haematology and Medical Oncology, University Medical Center Goettingen, Goettingen, Germany.,Cluster of Excellence "Multiscale Bioimaging: from Molecular Machines to Networks of Excitable Cells" (MBExC), University of Goettingen, Goettingen, Germany
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Pfeifer R, Henze J, Wittich K, Gosselink A, Kinkhabwala A, Gremse F, Bleilevens C, Bigott K, Jungblut M, Hardt O, Alves F, Al Rawashdeh W. A multimodal imaging workflow for monitoring CAR T cell therapy against solid tumor from whole-body to single-cell level. Am J Cancer Res 2022; 12:4834-4850. [PMID: 35836798 PMCID: PMC9274742 DOI: 10.7150/thno.68966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Accepted: 05/19/2022] [Indexed: 01/12/2023] Open
Abstract
CAR T cell research in solid tumors often lacks spatiotemporal information and therefore, there is a need for a molecular tomography to facilitate high-throughput preclinical monitoring of CAR T cells. Furthermore, a gap exists between macro- and microlevel imaging data to better assess intratumor infiltration of therapeutic cells. We addressed this challenge by combining 3D µComputer tomography bioluminescence tomography (µCT/BLT), light-sheet fluorescence microscopy (LSFM) and cyclic immunofluorescence (IF) staining. Methods: NSG mice with subcutaneous AsPC1 xenograft tumors were treated with EGFR CAR T cell (± IL-2) or control BDCA-2 CAR T cell (± IL-2) (n = 7 each). Therapeutic T cells were genetically modified to co-express the CAR of interest and the luciferase CBR2opt. IL-2 was administered s.c. under the xenograft tumor on days 1, 3, 5 and 7 post-therapy-initiation at a dose of 25,000 IU/mouse. CAR T cell distribution was measured in 2D BLI and 3D µCT/BLT every 3-4 days. On day 6, 4 tumors were excised for cyclic IF where tumor sections were stained with a panel of 25 antibodies. On day 6 and 13, 8 tumors were excised from rhodamine lectin-preinjected mice, permeabilized, stained for CD3 and imaged by LSFM. Results: 3D µCT/BLT revealed that CAR T cells pharmacokinetics is affected by antigen recognition, where CAR T cell tumor accumulation based on target-dependent infiltration was significantly increased in comparison to target-independent infiltration, and spleen accumulation was delayed. LSFM supported these findings and revealed higher T cell accumulation in target-positive groups at day 6, which also infiltrated the tumor deeper. Interestingly, LSFM showed that most CAR T cells accumulate at the tumor periphery and around vessels. Surprisingly, LSFM and cyclic IF revealed that local IL-2 application resulted in early-phase increased proliferation, but long-term overstimulation of CAR T cells, which halted the early added therapeutic effect. Conclusion: Overall, we demonstrated that 3D µCT/BLT is a valuable non-isotope-based technology for whole-body cell therapy monitoring and investigating CAR T cell pharmacokinetics. We also presented combining LSFM and MICS for ex vivo 3D- and 2D-microscopy tissue analysis to assess intratumoral therapeutic cell distribution and status.
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Affiliation(s)
- Rita Pfeifer
- Miltenyi Biotec B.V. & Co. KG, R&D Reagents, Bergisch Gladbach, North Rhine-Westphalia, Germany
| | - Janina Henze
- Miltenyi Biotec B.V. & Co. KG, R&D Reagents, Bergisch Gladbach, North Rhine-Westphalia, Germany.,University Medical Center Göttingen, Translational Molecular Imaging, Institute for Diagnostic and Interventional Radiology & Clinic for Haematology and Medical Oncology, Göttingen, Lower Saxony, Germany
| | - Katharina Wittich
- Miltenyi Biotec B.V. & Co. KG, R&D Reagents, Bergisch Gladbach, North Rhine-Westphalia, Germany
| | - Andre Gosselink
- Miltenyi Biotec B.V. & Co. KG, R&D Reagents, Bergisch Gladbach, North Rhine-Westphalia, Germany.,Institute of Medical Statistics and Computational Biology, University of Cologne, Cologne, North Rhine-Westphalia, Germany
| | - Ali Kinkhabwala
- Miltenyi Biotec B.V. & Co. KG, R&D Reagents, Bergisch Gladbach, North Rhine-Westphalia, Germany
| | - Felix Gremse
- Gremse-IT GmbH, Aachen, North Rhine-Westphalia, Germany
| | - Cathrin Bleilevens
- Miltenyi Biotec B.V. & Co. KG, R&D Reagents, Bergisch Gladbach, North Rhine-Westphalia, Germany
| | - Kevin Bigott
- Miltenyi Biotec B.V. & Co. KG, R&D Reagents, Bergisch Gladbach, North Rhine-Westphalia, Germany
| | - Melanie Jungblut
- Miltenyi Biotec B.V. & Co. KG, R&D Reagents, Bergisch Gladbach, North Rhine-Westphalia, Germany
| | - Olaf Hardt
- Miltenyi Biotec B.V. & Co. KG, R&D Reagents, Bergisch Gladbach, North Rhine-Westphalia, Germany
| | - Frauke Alves
- University Medical Center Göttingen, Translational Molecular Imaging, Institute for Diagnostic and Interventional Radiology & Clinic for Haematology and Medical Oncology, Göttingen, Lower Saxony, Germany.,Max-Planck-Institute for Multidisciplinary Science, Translational Molecular Imaging, Göttingen, Lower Saxony, Germany
| | - Wa'el Al Rawashdeh
- Miltenyi Biotec B.V. & Co. KG, R&D Reagents, Bergisch Gladbach, North Rhine-Westphalia, Germany.,Ossium Health Inc, Indianapolis, Indiana, United States of America.,✉ Corresponding author: E-mail: (W.A.)
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28
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Alves F, Calado R, Relvas M, Gomes T, Gonçalo M. Short courses of ciclosporin can induce long remissions in chronic spontaneous urticaria. J Eur Acad Dermatol Venereol 2022; 36:e645-e646. [PMID: 35344624 DOI: 10.1111/jdv.18107] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Revised: 12/20/2021] [Accepted: 01/18/2022] [Indexed: 11/30/2022]
Affiliation(s)
- F Alves
- Dermatology Department, Coimbra Hospital and University Center
| | - R Calado
- Dermatology Department, Coimbra Hospital and University Center
| | - M Relvas
- Dermatology Department, Coimbra Hospital and University Center
| | - T Gomes
- Dermatology Department, Leiria Hospital
| | - M Gonçalo
- Dermatology Department, Coimbra Hospital and University Center.,Faculty of Medicine, University of Coimbra
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Svetlove A, Albers J, Hülsmann S, Markus MA, Zschüntzsch J, Alves F, Dullin C. Non-Invasive Optical Motion Tracking Allows Monitoring of Respiratory Dynamics in Dystrophin-Deficient Mice. Cells 2022; 11:cells11050918. [PMID: 35269540 PMCID: PMC8909479 DOI: 10.3390/cells11050918] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 03/02/2022] [Accepted: 03/03/2022] [Indexed: 02/08/2023] Open
Abstract
Duchenne muscular dystrophy (DMD) is the most common x-chromosomal inherited dystrophinopathy which leads to progressive muscle weakness and a premature death due to cardiorespiratory dysfunction. The mdx mouse lacks functional dystrophin protein and has a comparatively human-like diaphragm phenotype. To date, diaphragm function can only be inadequately mapped in preclinical studies and a simple reliable translatable method of tracking the severity of the disease still lacks. We aimed to establish a sensitive, reliable, harmless and easy way to assess the effects of respiratory muscle weakness and subsequent irregularity in breathing pattern. Optical respiratory dynamics tracking (ORDT) was developed utilising a camera to track the movement of paper markers placed on the thoracic-abdominal region of the mouse. ORDT successfully distinguished diseased mdx phenotype from healthy controls by measuring significantly higher expiration constants (k) in mdx mice compared to wildtype (wt), which were also observed in the established X-ray based lung function (XLF). In contrast to XLF, with ORDT we were able to distinguish distinct fast and slow expiratory phases. In mdx mice, a larger part of the expiratory marker displacement was achieved in this initial fast phase as compared to wt mice. This phenomenon could not be observed in the XLF measurements. We further validated the simplicity and reliability of our approach by demonstrating that it can be performed using free-hand smartphone acquisition. We conclude that ORDT has a great preclinical potential to monitor DMD and other neuromuscular diseases based on changes in the breathing patterns with the future possibility to track therapy response.
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Affiliation(s)
- Angelika Svetlove
- Translational Molecular Imaging, Max-Planck Institute for Multidisciplinary Sciences, City Campus, 37075 Göttingen, Germany; (A.S.); (M.A.M.); (F.A.)
| | - Jonas Albers
- X-ray Based Preclinical Imaging Technologies, Institute for Diagnostic and Interventional Radiology, University Medical Center, 37075 Göttingen, Germany;
| | - Swen Hülsmann
- Central Breathing Control, Clinic for Anesthesiology, University Medical Center, 37075 Göttingen, Germany;
| | - Marietta Andrea Markus
- Translational Molecular Imaging, Max-Planck Institute for Multidisciplinary Sciences, City Campus, 37075 Göttingen, Germany; (A.S.); (M.A.M.); (F.A.)
| | - Jana Zschüntzsch
- Neuromuscular Disease Research, Clinic for Neurology, University Medical Center, 37075 Göttingen, Germany;
| | - Frauke Alves
- Translational Molecular Imaging, Max-Planck Institute for Multidisciplinary Sciences, City Campus, 37075 Göttingen, Germany; (A.S.); (M.A.M.); (F.A.)
- X-ray Based Preclinical Imaging Technologies, Institute for Diagnostic and Interventional Radiology, University Medical Center, 37075 Göttingen, Germany;
- Clinic for Haematology and Medical Oncology, University Medical Center, 37075 Göttingen, Germany
- Multiscale Bioimaging—From Molecular Machines to Networks of Excitable Cells, Cluster of Excellence (MBExC), 37075 Göttingen, Germany
| | - Christian Dullin
- X-ray Based Preclinical Imaging Technologies, Institute for Diagnostic and Interventional Radiology, University Medical Center, 37075 Göttingen, Germany;
- Institute for Diagnostic and Interventional Radiology, University Hospital, 69120 Heidelberg, Germany
- Correspondence:
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30
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Tinoco EM, Vasconcelos A, Alves F, Duarte R. Impact of COVID-19 on extrapulmonary TB and the benefit of decentralised TB services. Int J Tuberc Lung Dis 2022; 26:178-180. [PMID: 35086634 DOI: 10.5588/ijtld.21.0675] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- E M Tinoco
- Serviço de Pneumologia, Centro Hospitalar de Vila Nova de Gaia/Espinho, Vila Nova de Gaia, Portugal
| | - A Vasconcelos
- Serviço de Pneumologia, Centro Hospitalar Baixo Vouga, Aveiro, Portugal
| | - F Alves
- Unidade de Investigação Clínica da Administração Regional de Saúde do Norte, Porto
| | - R Duarte
- Serviço de Pneumologia, Centro Hospitalar de Vila Nova de Gaia/Espinho, Vila Nova de Gaia, Portugal, Unidade de Investigação Clínica da Administração Regional de Saúde do Norte, Porto, Centro de Diagnóstico Pneumológico, Vila Nova de Gaia, Portugal, EPIUnit, Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal, Faculdade de Medicina, Universidade do Porto, Porto, Portugal
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31
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Hermasch MA, Janning H, Perera RP, Schnabel V, Rostam N, Ramos-Gomes F, Muschalek W, Bennemann A, Alves F, Ralser DJ, Betz RC, Schön MP, Dosch R, Frank J. Evolutionary distinct roles of γ-secretase subunit nicastrin in zebrafish and humans. J Dermatol Sci 2022; 105:80-87. [PMID: 35016821 DOI: 10.1016/j.jdermsci.2022.01.001] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 12/20/2021] [Accepted: 01/03/2022] [Indexed: 12/15/2022]
Abstract
BACKGROUND Mutations in the genes that encode the human γ-secretase subunits Presenilin-1, Presenilin Enhancer Protein 2, and Nicastrin (NCSTN) are associated with familial hidradenitis suppurativa (HS); and, regarding Presenilin Enhancer Protein 2, also with comorbidity for the hereditary pigmentation disorder Dowling-Degos disease. OBJECTIVE Here, the consequences of targeted inactivation of ncstn, the zebrafish homologue of human NCSTN, were studied. METHODS After morpholino (MO)-mediated ncstn-knockdown, the possibilities of phenotype rescue through co-injection of ncstn-MO with wildtype zebrafish ncstn or human NCSTN mRNA were investigated. Further, the effects of the co-injection of a human missense, nonsense, splice-site, and frameshift mutation were studied. RESULTS MO-mediated ncstn-knockdown resulted in a significant reduction in melanophore morphology, size and number; and alterations in their patterns of migration and distribution. This phenotype was rescued by co-injection of zebrafish ncstn RNA, human NCSTN RNA, or a construct encoding the human NCSTN missense mutation p.P211R. CONCLUSION Human NCSTN mutations encoding null alleles confer loss-of-function regarding pigmentation homeostasis in zebrafisch. In contrast, the human missense mutation p.P211R was less harmful, asserting sufficient residual ncstn activity to maintain pigmentation in zebrafish. Since fish lack the anatomical structures affected by HS, our data suggest that the zebrafish ncstn gene and the human NCSTN gene have probably acquired different functions during evolution. In fish, one major role of ncstn is the maintenance of pigmentation homeostasis. In contrast, one of the roles of NCSTN in humans is the prevention of inflammatory processes in the adnexal structures of the skin, as seen in familial HS.
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Affiliation(s)
- Matthias Andreas Hermasch
- Department of Dermatology, Venereology and Allergology, University Medical Center Göttingen, Göttingen, Germany
| | - Helena Janning
- Department of Dermatology, Venereology and Allergology, University Medical Center Göttingen, Göttingen, Germany
| | | | - Viktor Schnabel
- Department of Dermatology, Venereology and Allergology, University Medical Center Göttingen, Göttingen, Germany
| | - Nadia Rostam
- Department of Developmental Biochemistry, University Medical Center Göttingen, Göttingen, Germany
| | - Fernanda Ramos-Gomes
- Max Planck Institute for Experimental Medicine, Translational Molecular Imaging, Göttingen, Germany
| | - Wiebke Muschalek
- Department of Dermatology, Venereology and Allergology, University Medical Center Göttingen, Göttingen, Germany
| | - Anette Bennemann
- Department of Dermatology, Venereology and Allergology, University Medical Center Göttingen, Göttingen, Germany
| | - Frauke Alves
- Max Planck Institute for Experimental Medicine, Translational Molecular Imaging, Göttingen, Germany; Clinic of Hematology and Oncology, University Medical Center Göttingen, Germany; Institute of Interventional and Diagnostic Radiology, University Medical Center Göttingen, Germany
| | | | - Regina Christine Betz
- Institute of Human Genetics, University of Bonn, Medical Faculty and University Hospital Bonn, Bonn, Germany
| | - Michael Peter Schön
- Department of Dermatology, Venereology and Allergology, University Medical Center Göttingen, Göttingen, Germany; Lower Saxony Institute of Occupational Dermatology, University Medical Center Göttingen, Göttingen, Germany
| | - Roland Dosch
- Department of Developmental Biochemistry, University Medical Center Göttingen, Göttingen, Germany
| | - Jorge Frank
- Department of Dermatology, Venereology and Allergology, University Medical Center Göttingen, Göttingen, Germany.
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32
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Ramos-Gomes F, Ferreira N, Alves F, Markus M. An Alternative Technique for Monitoring the Live Interaction of Monocytes and Tumor Cells with Nanoparticles in the Mouse Lung. Bio Protoc 2022; 12:e4293. [DOI: 10.21769/bioprotoc.4293] [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: 09/02/2021] [Revised: 10/27/2021] [Accepted: 11/05/2021] [Indexed: 11/02/2022] Open
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33
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Sabljo K, Napp J, Alves F, Feldmann C. pH-Dependent Fluorescence of [La(OH)2]+[ARS]– Hybrid Nanoparticles for Intracellular pH-Sensing. Chem Commun (Camb) 2022; 58:9417-9420. [DOI: 10.1039/d2cc01507b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Saline inorganic-organic hybrid nanoparticles (IOH-NPs) [La(OH)2]+[ARS]– (ARS: alizarin red S) are prepared in water as a new compound (particle size: 47±7 nm, ARS load: 65 wt-%). The IOH-NPs not only...
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Mieczkowska IK, Pantelaiou-Prokaki G, Prokakis E, Schmidt GE, Müller-Kirschbaum LC, Werner M, Sen M, Velychko T, Jannasch K, Dullin C, Napp J, Pantel K, Wikman H, Wiese M, Kramm CM, Alves F, Wegwitz F. Decreased PRC2 activity supports the survival of basal-like breast cancer cells to cytotoxic treatments. Cell Death Dis 2021; 12:1118. [PMID: 34845197 PMCID: PMC8630036 DOI: 10.1038/s41419-021-04407-y] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 11/01/2021] [Accepted: 11/09/2021] [Indexed: 12/12/2022]
Abstract
Breast cancer (BC) is the most common cancer occurring in women but also rarely develops in men. Recent advances in early diagnosis and development of targeted therapies have greatly improved the survival rate of BC patients. However, the basal-like BC subtype (BLBC), largely overlapping with the triple-negative BC subtype (TNBC), lacks such drug targets and conventional cytotoxic chemotherapies often remain the only treatment option. Thus, the development of resistance to cytotoxic therapies has fatal consequences. To assess the involvement of epigenetic mechanisms and their therapeutic potential increasing cytotoxic drug efficiency, we combined high-throughput RNA- and ChIP-sequencing analyses in BLBC cells. Tumor cells surviving chemotherapy upregulated transcriptional programs of epithelial-to-mesenchymal transition (EMT) and stemness. To our surprise, the same cells showed a pronounced reduction of polycomb repressive complex 2 (PRC2) activity via downregulation of its subunits Ezh2, Suz12, Rbbp7 and Mtf2. Mechanistically, loss of PRC2 activity leads to the de-repression of a set of genes through an epigenetic switch from repressive H3K27me3 to activating H3K27ac mark at regulatory regions. We identified Nfatc1 as an upregulated gene upon loss of PRC2 activity and directly implicated in the transcriptional changes happening upon survival to chemotherapy. Blocking NFATc1 activation reduced epithelial-to-mesenchymal transition, aggressiveness, and therapy resistance of BLBC cells. Our data demonstrate a previously unknown function of PRC2 maintaining low Nfatc1 expression levels and thereby repressing aggressiveness and therapy resistance in BLBC.
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Affiliation(s)
- Iga K. Mieczkowska
- grid.411984.10000 0001 0482 5331Department of General, Visceral and Pediatric Surgery, University Medical Center Göttingen, Göttingen, Germany
| | - Garyfallia Pantelaiou-Prokaki
- grid.411984.10000 0001 0482 5331Department of Gynecology and Obstetrics, University Medical Center Göttingen, Göttingen, Germany ,grid.419522.90000 0001 0668 6902Translational Molecular Imaging, Max Planck Institute for Experimental Medicine, Göttingen, Germany
| | - Evangelos Prokakis
- grid.411984.10000 0001 0482 5331Department of Gynecology and Obstetrics, University Medical Center Göttingen, Göttingen, Germany
| | - Geske E. Schmidt
- grid.411984.10000 0001 0482 5331Department of Gastroenterology, GI-Oncology and Endocrinology, University Medical Center Göttingen, Göttingen, Germany
| | - Lukas C. Müller-Kirschbaum
- grid.411984.10000 0001 0482 5331Department of General, Visceral and Pediatric Surgery, University Medical Center Göttingen, Göttingen, Germany
| | - Marcel Werner
- grid.411984.10000 0001 0482 5331Department of General, Visceral and Pediatric Surgery, University Medical Center Göttingen, Göttingen, Germany
| | - Madhobi Sen
- grid.411984.10000 0001 0482 5331Department of General, Visceral and Pediatric Surgery, University Medical Center Göttingen, Göttingen, Germany
| | - Taras Velychko
- grid.411984.10000 0001 0482 5331Department of General, Visceral and Pediatric Surgery, University Medical Center Göttingen, Göttingen, Germany
| | - Katharina Jannasch
- grid.411984.10000 0001 0482 5331Clinic for Haematology and Medical Oncology, University Medical Center Göttingen, Göttingen, Germany
| | - Christian Dullin
- grid.419522.90000 0001 0668 6902Translational Molecular Imaging, Max Planck Institute for Experimental Medicine, Göttingen, Germany ,grid.411984.10000 0001 0482 5331Clinic for Haematology and Medical Oncology, University Medical Center Göttingen, Göttingen, Germany ,grid.411984.10000 0001 0482 5331Institute for Diagnostic and Interventional Radiology, University Medical Center Göttingen, Göttingen, Germany
| | - Joanna Napp
- grid.419522.90000 0001 0668 6902Translational Molecular Imaging, Max Planck Institute for Experimental Medicine, Göttingen, Germany ,grid.411984.10000 0001 0482 5331Institute for Diagnostic and Interventional Radiology, University Medical Center Göttingen, Göttingen, Germany
| | - Klaus Pantel
- grid.13648.380000 0001 2180 3484Institute of Tumor Biology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Harriet Wikman
- grid.13648.380000 0001 2180 3484Institute of Tumor Biology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Maria Wiese
- grid.411984.10000 0001 0482 5331Department of Pediatrics and Adolescent Medicine, Division of Pediatric Hematology and Oncology, University Medical Center Göttingen, Göttingen, Germany
| | - Christof M. Kramm
- grid.411984.10000 0001 0482 5331Department of Pediatrics and Adolescent Medicine, Division of Pediatric Hematology and Oncology, University Medical Center Göttingen, Göttingen, Germany
| | - Frauke Alves
- grid.419522.90000 0001 0668 6902Translational Molecular Imaging, Max Planck Institute for Experimental Medicine, Göttingen, Germany ,grid.411984.10000 0001 0482 5331Clinic for Haematology and Medical Oncology, University Medical Center Göttingen, Göttingen, Germany ,grid.411984.10000 0001 0482 5331Institute for Diagnostic and Interventional Radiology, University Medical Center Göttingen, Göttingen, Germany
| | - Florian Wegwitz
- Department of General, Visceral and Pediatric Surgery, University Medical Center Göttingen, Göttingen, Germany. .,Department of Gynecology and Obstetrics, University Medical Center Göttingen, Göttingen, Germany.
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Sousa A, Alves F, Arranz P, Dinis A, Fernandez M, González García L, Morales M, Lettrich M, Encarnação Coelho R, Costa H, Capela Lourenço T, Azevedo NMJ, Frazão Santos C. Climate change vulnerability of cetaceans in Macaronesia: Insights from a trait-based assessment. Sci Total Environ 2021; 795:148652. [PMID: 34247086 DOI: 10.1016/j.scitotenv.2021.148652] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Revised: 05/28/2021] [Accepted: 06/20/2021] [Indexed: 06/13/2023]
Abstract
Over the last decades global warming has caused an increase in ocean temperature, acidification and oxygen loss which has led to changes in nutrient cycling and primary production affecting marine species at multiple trophic levels. While knowledge about the impacts of climate change in cetacean's species is still scarce, practitioners and policymakers need information about the species at risk to guide the implementation of conservation measures. To assess cetacean's vulnerability to climate change in the biogeographic region of Macaronesia, we adapted the Marine Mammal Climate Vulnerability Assessment (MMCVA) method and applied it to 21 species management units using an expert elicitation approach. Results showed that over half (62%) of the units assessed presented Very High (5 units) or High (8 units) vulnerability scores. Very High vulnerability scores were found in archipelago associated units of short-finned pilot whales (Globicephala macrorhynchus) and common bottlenose dolphins (Tursiops truncatus), namely in the Canary Islands and Madeira, as well as Risso's dolphins (Grampus griseus) in the Canary Islands. Overall, certainty scores ranged from Very High to Moderate for 67% of units. Over 50% of units showed a high potential for distribution, abundance and phenology changes as a response to climate change. With this study we target current and future information needs of conservation managers in the region, and guide research and monitoring efforts, while contributing to the improvement and validation of trait-based vulnerability approaches under a changing climate.
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Affiliation(s)
- A Sousa
- Centre for Ecology, Evolution and Environmental Changes (cE3c), Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal.
| | - F Alves
- MARE - Marine and Environmental Sciences Centre/ARDITI, Portugal; Oceanic Observatory of Madeira, Funchal, Portugal.
| | - P Arranz
- BIOECOMAC, Research group on Biodiversity, Marine Ecology and Conservation, University of La Laguna, Tenerife, Spain.
| | - A Dinis
- MARE - Marine and Environmental Sciences Centre/ARDITI, Portugal; Oceanic Observatory of Madeira, Funchal, Portugal.
| | - M Fernandez
- MARE - Marine and Environmental Sciences Centre/ARDITI, Portugal; Oceanic Observatory of Madeira, Funchal, Portugal; Azores Biodiversity Group and Centre for Ecology, Evolution and Environmental Changes (CE3C), University of the Azores, Rua Mãe de Deus, 9500-321 Ponta Delgada, Portugal
| | - L González García
- Azores Biodiversity Group and Centre for Ecology, Evolution and Environmental Changes (CE3C), University of the Azores, Rua Mãe de Deus, 9500-321 Ponta Delgada, Portugal; Futurismo Azores Adventures, Portas do Mar, loja 24-26, 9500-771, Ponta Delgada, São Miguel, Azores, Portugal
| | - M Morales
- Biosean Whale Watching & Marine Science, Marina Del Sur, Las Galletas, 38631 Tenerife, Spain.
| | - M Lettrich
- ECS, NOAA Fisheries Office of Science and Technology, United States of America.
| | - R Encarnação Coelho
- Centre for Ecology, Evolution and Environmental Changes (cE3c), Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal.
| | - H Costa
- Centre for Ecology, Evolution and Environmental Changes (cE3c), Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal.
| | - T Capela Lourenço
- Centre for Ecology, Evolution and Environmental Changes (cE3c), Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal.
| | - N M J Azevedo
- Azores Biodiversity Group and Centre for Ecology, Evolution and Environmental Changes (CE3C), University of the Azores, Rua Mãe de Deus, 9500-321 Ponta Delgada, Portugal.
| | - C Frazão Santos
- Marine and Environmental Sciences Centre, Faculdade de Ciências, Universidade de Lisboa, Avenida Nossa Senhora do Cabo 939, 2750-374 Cascais, Portugal; Environmental Economics Knowledge Center, Nova School of Business and Economics, New University of Lisbon, Rua da Holanda 1, 2775-405 Carcavelos, Portugal.
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36
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Khan A, Ramos-Gomes F, Markus A, Mietsch M, Hinkel R, Alves F. Label-free imaging of age-related cardiac structural changes in non-human primates using multiphoton nonlinear microscopy. Biomed Opt Express 2021; 12:7009-7023. [PMID: 34858695 PMCID: PMC8606147 DOI: 10.1364/boe.432102] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 08/26/2021] [Accepted: 08/26/2021] [Indexed: 06/13/2023]
Abstract
Heart failure is one of the most common causes of morbidity and mortality. Both maturational abnormalities and age-associated cardiac pathologies contribute to heart failure. Imaging-based assessment to discern detailed cardiac structure at various maturational stages is imperative for understanding mechanisms behind cardiac growth and aging. Using multiphoton nonlinear optical microscopy (NLOM) based label-free imaging, we investigated cardiac structural composition in a human-relevant aging model, the common marmoset monkey (Callithrix jacchus). Animals were divided into three different age groups including neonatal, young adult and old. By devising a unique strategy for segregating collagen and myosin emitted second harmonic generation (SHG) signals, we performed a volumetric assessment of collagen and total scattering tissue (collagen + myosin). Aged marmoset hearts exhibited an increase in collagen and total scattering tissue volume at the sites of severe tissue remodelling indicating age-related cardiac fibrosis. Significantly low scattering tissue volume in neonatal marmoset hearts was attributed to a lack of binding between the myofibrils in maturing cardiac tissue. Comprehensive quantitative assessment of structural composition during maturation and aging of marmoset hearts revealed significant differences in myofibril length, alignment, curvature and angular distribution. In conclusion, label-free high-resolution NLOM facilitates visualization and quantification of subcellular structural features for understanding vital age-related morphological alterations in the marmoset heart.
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Affiliation(s)
- Amara Khan
- Max-Planck-Institute for Experimental Medicine, Translational Molecular Imaging, Göttingen, Germany
- DZHK (German Center for Cardiovascular Research), Partner site Göttingen, 37077 Göttingen, Germany
| | - Fernanda Ramos-Gomes
- Max-Planck-Institute for Experimental Medicine, Translational Molecular Imaging, Göttingen, Germany
| | - Andrea Markus
- Max-Planck-Institute for Experimental Medicine, Translational Molecular Imaging, Göttingen, Germany
| | - Matthias Mietsch
- DZHK (German Center for Cardiovascular Research), Partner site Göttingen, 37077 Göttingen, Germany
- Laboratory Animal Science Unit, German Primate Center, Leibniz Institute for Primate Research, Göttingen, Germany
| | - Rabea Hinkel
- DZHK (German Center for Cardiovascular Research), Partner site Göttingen, 37077 Göttingen, Germany
- Laboratory Animal Science Unit, German Primate Center, Leibniz Institute for Primate Research, Göttingen, Germany
- Stiftung Tierärztliche Hochschule Hannover, Hannover, Germany
| | - Frauke Alves
- Max-Planck-Institute for Experimental Medicine, Translational Molecular Imaging, Göttingen, Germany
- DZHK (German Center for Cardiovascular Research), Partner site Göttingen, 37077 Göttingen, Germany
- University Medical Center Göttingen, Institute for Diagnostic and Interventional Radiology & Clinic for Hematology and Medical Oncology, Göttingen, Germany
- Cluster of Excellence “Multiscale Bioimaging: from Molecular Machines to Networks of Excitable Cells,” Göttingen, Germany
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37
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Relvas M, Silva J, Alves F, Matos A, Bizjak M, Gonçalo M. Localized cold urticaria: an unusual form of cold urticaria. J Eur Acad Dermatol Venereol 2021; 36:e133-e135. [PMID: 34551454 DOI: 10.1111/jdv.17697] [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: 11/27/2022]
Affiliation(s)
- M Relvas
- Dermatology Department, Coimbra University Hospital Center, Coimbra, Portugal
| | - J Silva
- Occupational Health Department, Coimbra University Hospital Center, Coimbra, Portugal
| | - F Alves
- Dermatology Department, Coimbra University Hospital Center, Coimbra, Portugal
| | - A Matos
- Dermatology Department, Coimbra University Hospital Center, Coimbra, Portugal
| | - M Bizjak
- Division of Allergy, University Clinic of Respiratory and Allergic Diseases Golnik, Golnik, Slovenia
| | - M Gonçalo
- Dermatology Department, Coimbra University Hospital Center, Coimbra, Portugal.,Dermatology Department, Faculty of Medicine, University of Coimbra, Portugal
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38
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Dragicevic E, Juhasz K, Reinhardt O, Thomas U, Johannssen T, Nörenberg A, Ziller M, Fertig N, Alves F, Stölzle-Feix S. High-content multi-frequency impedance cell monitoring for label-free and time-resolved cell toxicity analysis of various cell types. Toxicol Lett 2021. [DOI: 10.1016/s0378-4274(21)00483-5] [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: 12/01/2022]
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39
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Aguiar A, Pinto M, Alves F, Barbosa P, Monteiro H, Bigotte J, Santos M, Felgueiras Ó, Dara M, Duarte R. A roadmap for lifting restrictive measures for COVID-19. Int J Tuberc Lung Dis 2021; 25:687-690. [PMID: 34802487 DOI: 10.5588/ijtld.21.0248] [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: 11/10/2022] Open
Affiliation(s)
- A Aguiar
- EPIUnit, Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal, Laboratório para a Investigação Integrativa e Translacional em Saúde Populacional (ITR), Porto, Portugal
| | - M Pinto
- Unidade de Investigação Clínica da ARS Norte, Porto, Portugal, Faculdade de Psicologia e Ciências da Educação, Universidade do Porto, Porto, Portugal
| | - F Alves
- Unidade de Investigação Clínica da ARS Norte, Porto, Portugal
| | - P Barbosa
- Faculdade de Psicologia e Ciências da Educação, Universidade do Porto, Porto, Portugal
| | - H Monteiro
- Departamento de Estudos e Planeamento da Administração Regional de Saúde do Norte, Porto, Portugal
| | - J Bigotte
- Faculdade de Psicologia e Ciências da Educação, Universidade do Porto, Porto, Portugal
| | - M Santos
- Faculdade de Psicologia e Ciências da Educação, Universidade do Porto, Porto, Portugal
| | - Ó Felgueiras
- Unidade de Investigação Clínica da ARS Norte, Porto, Portugal, Departamento de Matemática, Faculdade de Ciências, Universidade do Porto, Porto, Portugal, Centro de Matemática da Universidade do Porto, Porto, Portugal
| | - M Dara
- World Health Organization Regional Office for Europe, Copenhagen, Denmark
| | - R Duarte
- EPIUnit, Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal, Laboratório para a Investigação Integrativa e Translacional em Saúde Populacional (ITR), Porto, Portugal, Unidade de Investigação Clínica da ARS Norte, Porto, Portugal, Departamento de Ciências de Saúde Pública, Ciências Forenses e Educação Médica, Universidade do Porto, Porto, Portugal, Serviço de Pneumologia, Centro Hospitalar de Vila Nova de Gaia/Espinho, Vila Nova de Gaia, Portugal
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40
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Lopes M, Ventura T, Mateus J, Khouri L, Serra T, Alves F, Alves P. PO-1482 Harmonizing the nomenclature in a radiotherapy department: a quality improvement project. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)07933-0] [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: 11/27/2022]
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41
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Clarke S, Alves F, Martins N, Ahmed M, Sanchez L, Donovan J, Kouranos V, Wechalekar K. Blood ketone measurement as a test for dietary compliance in cardiac sarcoid patients undergoing 18f-fluorodeoxyglucose positron emission tomography. Eur Heart J Cardiovasc Imaging 2021. [DOI: 10.1093/ehjci/jeab111.074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
Background
Imaging with 18F-fluorodeoxyglucose (18F-FDG) positron emission tomography (PET) is used as part of diagnosis and monitoring response to therapy in patients with cardiac sarcoidosis. In order to supress myocardial uptake of 18F-FDG patients prepare with a low carbohydrate diet followed by an 18-hour overnight fast. Failure to comply with the protocol results in diffuse myocardial 18F-FDG uptake which confounds diagnostic interpretation.
Purpose
To assess if point of care blood ketones could be used as a marker of dietary compliance and association with suppression of myocardial 18F-FDG uptake on PET scan.
Method
Patients (n = 26, 57 ± 4 years, 65% Male) from a single centre were instructed to follow standard preparation protocol prior to 18F-FDG PET/CT. After confirmation of dietary compliance, blood glucose and blood ketones were recorded using point of care devices. Images were graded based on the pattern of myocardial 18F-FDG uptake.
Results
There was no clear correlation between blood ketones in relation to dietary compliance or myocardial 18F-fluorodeoxyglucose uptake. In those with myocardial 18F-FDG uptake maximum standardized uptake value (SUV max) within the myocardium ranged from 2.3 to 9.8 (Mean 5.3) and ketone from 0.1 – 0.7 (normal <0.6).
Non-diabetic patients and those on steroids achieved adequate fasting glucose without significant rise in blood ketones. 60% of diabetic patients demonstrated mildly elevated ketones between 0.6-1.5mmol/L.
Conclusion
Current protocol with low carbohydrate diet and 18-hour fast achieves adequate quality of images in majority of patients, without significant change in blood ketones. Therefore, blood ketones cannot be used to confirm dietary compliance. Diabetic patients on insulin may benefit from ketone measurement due to risk of diabetic ketoacidosis.
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Affiliation(s)
- S Clarke
- Royal Brompton and Harefield Hospital, Nuclear Medicine, London, United Kingdom of Great Britain & Northern Ireland
| | - F Alves
- Royal Brompton and Harefield Hospital, Nuclear Medicine, London, United Kingdom of Great Britain & Northern Ireland
| | - N Martins
- Royal Brompton and Harefield Hospital, Nuclear Medicine, London, United Kingdom of Great Britain & Northern Ireland
| | - M Ahmed
- Royal Brompton and Harefield Hospital, Nuclear Medicine, London, United Kingdom of Great Britain & Northern Ireland
| | - L Sanchez
- Royal Brompton and Harefield Hospital, Nuclear Medicine, London, United Kingdom of Great Britain & Northern Ireland
| | - J Donovan
- Royal Brompton and Harefield Hospital, Clinical Biochemistry, London, United Kingdom of Great Britain & Northern Ireland
| | - V Kouranos
- Royal Brompton and Harefield Hospital, Interstitial Lung Disease Unit, London, United Kingdom of Great Britain & Northern Ireland
| | - K Wechalekar
- Royal Brompton and Harefield Hospital, Nuclear Medicine, London, United Kingdom of Great Britain & Northern Ireland
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42
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Matos AL, Figueiredo C, Alves F, Pereira N, Gonçalo M. Mucocutaneous leishmaniasis complicating systemic lupus erythematosus and responding to high dose amphotericin B. J Eur Acad Dermatol Venereol 2021; 35:e756-e758. [PMID: 34057771 DOI: 10.1111/jdv.17423] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Accepted: 05/27/2021] [Indexed: 11/29/2022]
Affiliation(s)
- A L Matos
- Dermatology Department, Coimbra University Hospital Centre, Coimbra, Portugal
| | - C Figueiredo
- Dermatology Department, Coimbra University Hospital Centre, Coimbra, Portugal
| | - F Alves
- Dermatology Department, Coimbra University Hospital Centre, Coimbra, Portugal
| | - N Pereira
- Dermatology Department, Cova da Beira University Hospital Centre, Covilhã, Portugal
| | - M Gonçalo
- Dermatology Department, Coimbra University Hospital Centre, Coimbra, Portugal.,Dermatology Department, Faculty of Medicine, University of Coimbra, Coimbra, Portugal
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43
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Albers J, Svetlove A, Alves J, Kraupner A, di Lillo F, Markus MA, Tromba G, Alves F, Dullin C. Elastic transformation of histological slices allows precise co-registration with microCT data sets for a refined virtual histology approach. Sci Rep 2021; 11:10846. [PMID: 34035350 PMCID: PMC8149420 DOI: 10.1038/s41598-021-89841-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [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: 02/04/2021] [Accepted: 04/16/2021] [Indexed: 11/24/2022] Open
Abstract
Although X-ray based 3D virtual histology is an emerging tool for the analysis of biological tissue, it falls short in terms of specificity when compared to conventional histology. Thus, the aim was to establish a novel approach that combines 3D information provided by microCT with high specificity that only (immuno-)histochemistry can offer. For this purpose, we developed a software frontend, which utilises an elastic transformation technique to accurately co-register various histological and immunohistochemical stainings with free propagation phase contrast synchrotron radiation microCT. We demonstrate that the precision of the overlay of both imaging modalities is significantly improved by performing our elastic registration workflow, as evidenced by calculation of the displacement index. To illustrate the need for an elastic co-registration approach we examined specimens from a mouse model of breast cancer with injected metal-based nanoparticles. Using the elastic transformation pipeline, we were able to co-localise the nanoparticles to specifically stained cells or tissue structures into their three-dimensional anatomical context. Additionally, we performed a semi-automated tissue structure and cell classification. This workflow provides new insights on histopathological analysis by combining CT specific three-dimensional information with cell/tissue specific information provided by classical histology.
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Affiliation(s)
- Jonas Albers
- Institute for Diagnostic and Interventional Radiology, University Medical Center Göttingen, Göttingen, Germany.
| | - Angelika Svetlove
- Institute for Diagnostic and Interventional Radiology, University Medical Center Göttingen, Göttingen, Germany.,Translational Molecular Imaging, Max-Planck-Institute for Experimental Medicine, Göttingen, Germany
| | - Justus Alves
- Institute for Diagnostic and Interventional Radiology, University Medical Center Göttingen, Göttingen, Germany
| | | | | | - M Andrea Markus
- Translational Molecular Imaging, Max-Planck-Institute for Experimental Medicine, Göttingen, Germany
| | | | - Frauke Alves
- Institute for Diagnostic and Interventional Radiology, University Medical Center Göttingen, Göttingen, Germany.,Translational Molecular Imaging, Max-Planck-Institute for Experimental Medicine, Göttingen, Germany.,Clinic for Hematology and Medical Oncology, University Medical Center Göttingen, Göttingen, Germany
| | - Christian Dullin
- Institute for Diagnostic and Interventional Radiology, University Medical Center Göttingen, Göttingen, Germany
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44
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Alves F, Pinho A, Cardoso J. Isolated Bullae of the Scrotum in an 87 Year-Old-Man. Actas Dermo-Sifiliográficas (English Edition) 2021. [DOI: 10.1016/j.adengl.2021.01.006] [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: 11/24/2022] Open
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45
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Stojanovic D, McEvoy J, Alves F, Rayner L, Heinsohn R, Saunders D, Webb M. Parental care does not compensate for the effects of bad years on reproductive success of a vagile bird. J Zool (1987) 2021. [DOI: 10.1111/jzo.12888] [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: 11/28/2022]
Affiliation(s)
- D. Stojanovic
- Fenner School of Environment and Society Australian National University Canberra ACT Australia
| | - J. McEvoy
- Smithsonian Conservation Biology Institute National Zoological Park Front Royal VA USA
| | - F. Alves
- Fenner School of Environment and Society Australian National University Canberra ACT Australia
| | - L. Rayner
- Fenner School of Environment and Society Australian National University Canberra ACT Australia
| | - R. Heinsohn
- Fenner School of Environment and Society Australian National University Canberra ACT Australia
| | - D. Saunders
- Fenner School of Environment and Society Australian National University Canberra ACT Australia
| | - M. Webb
- Fenner School of Environment and Society Australian National University Canberra ACT Australia
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46
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Götze T, Soto-Bernardini MC, Zhang M, Mießner H, Linhoff L, Brzózka MM, Velanac V, Dullin C, Ramos-Gomes F, Peng M, Husseini H, Schifferdecker E, Fledrich R, Sereda MW, Willig K, Alves F, Rossner MJ, Nave KA, Zhang W, Schwab MH. Hyperactivity is a Core Endophenotype of Elevated Neuregulin-1 Signaling in Embryonic Glutamatergic Networks. Schizophr Bull 2021; 47:1409-1420. [PMID: 33871014 PMCID: PMC8379540 DOI: 10.1093/schbul/sbab027] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
The neuregulin 1 (NRG1) ErbB4 module is at the core of an "at risk" signaling pathway in schizophrenia. Several human studies suggest hyperstimulation of NRG1-ErbB4 signaling as a plausible pathomechanism; however, little is known about the significance of stage-, brain area-, or neural cell type-specific NRG1-ErbB4 hyperactivity for disease-relevant brain endophenotypes. To address these spatiotemporal aspects, we generated transgenic mice for Cre recombinase-mediated overexpression of cystein-rich domain (CRD) NRG1, the most prominent NRG1 isoform in the brain. A comparison of "brain-wide" vs cell type-specific CRD-NRG1 overexpressing mice revealed that pathogenic CRD-NRG1 signals for ventricular enlargement and neuroinflammation originate outside glutamatergic neurons and suggests a subcortical function of CRD-NRG1 in the control of body weight. Embryonic onset of CRD-NRG1 in glutamatergic cortical networks resulted in reduced inhibitory neurotransmission and locomotor hyperactivity. Our findings identify ventricular enlargement and locomotor hyperactivity, 2 main endophenotypes of schizophrenia, as specific consequences of spatiotemporally distinct expression profiles of hyperactivated CRD-NRG1 signaling.
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Affiliation(s)
- Tilmann Götze
- Department of Neurogenetics, Max-Planck-Institute of Experimental Medicine, Goettingen, Germany,Cellular Neurophysiology, Hannover Medical School, Hannover, Germany
| | - Maria Clara Soto-Bernardini
- Department of Neurogenetics, Max-Planck-Institute of Experimental Medicine, Goettingen, Germany,Present address: Center for Research in Biotechnology (CIB)/Costa Rica Institute of Technology (TEC), Cartago, Costa Rica
| | - Mingyue Zhang
- Laboratory of Molecular Psychiatry, Department of Mental Health, Westfälische Wilhelm-University of Münster, Münster, Germany
| | - Hendrik Mießner
- Cellular Neurophysiology, Hannover Medical School, Hannover, Germany,Present address: Department of Pharmacology, University of Cambridge, Cambridge, UK
| | - Lisa Linhoff
- Department of Neurogenetics, Max-Planck-Institute of Experimental Medicine, Goettingen, Germany,Department of Neurology, University Medicine Göttingen (UMG), Göttingen, Germany
| | - Magdalena M Brzózka
- Department of Psychiatry, Ludwig-Maximilian-University Munich, Munich, Germany
| | - Viktorija Velanac
- Department of Neurogenetics, Max-Planck-Institute of Experimental Medicine, Goettingen, Germany
| | - Christian Dullin
- Institute for Diagnostic and Interventional Radiology, University Medical Center, Goettingen, Germany,Translational Molecular Imaging, Max-Planck-Institute of Experimental Medicine, Goettingen, Germany,Italian Synchrotron “Elettra,"Trieste, Italy
| | - Fernanda Ramos-Gomes
- Translational Molecular Imaging, Max-Planck-Institute of Experimental Medicine, Goettingen, Germany
| | - Maja Peng
- Laboratory of Molecular Psychiatry, Department of Mental Health, Westfälische Wilhelm-University of Münster, Münster, Germany
| | - Hümeyra Husseini
- Laboratory of Molecular Psychiatry, Department of Mental Health, Westfälische Wilhelm-University of Münster, Münster, Germany
| | - Eva Schifferdecker
- Laboratory of Molecular Psychiatry, Department of Mental Health, Westfälische Wilhelm-University of Münster, Münster, Germany
| | - Robert Fledrich
- Institute of Anatomy, University of Leipzig, Leipzig, Germany
| | - Michael W Sereda
- Department of Neurogenetics, Max-Planck-Institute of Experimental Medicine, Goettingen, Germany,Department of Neurology, University Medicine Göttingen (UMG), Göttingen, Germany
| | - Katrin Willig
- Center for Nanoscale Microscopy and Molecular Physiology of the Brain, University Medical Center Göttingen, Göttingen, Germany,Max Planck Institute of Experimental Medicine, Göttingen, Germany
| | - Frauke Alves
- Institute for Diagnostic and Interventional Radiology, University Medical Center, Goettingen, Germany,Translational Molecular Imaging, Max-Planck-Institute of Experimental Medicine, Goettingen, Germany
| | - Moritz J Rossner
- Department of Psychiatry, Ludwig-Maximilian-University Munich, Munich, Germany
| | - Klaus-Armin Nave
- Department of Neurogenetics, Max-Planck-Institute of Experimental Medicine, Goettingen, Germany
| | - Weiqi Zhang
- Laboratory of Molecular Psychiatry, Department of Mental Health, Westfälische Wilhelm-University of Münster, Münster, Germany
| | - Markus H Schwab
- Department of Neurogenetics, Max-Planck-Institute of Experimental Medicine, Goettingen, Germany,Cellular Neurophysiology, Hannover Medical School, Hannover, Germany,Department of Neuropathology, University Hospital Leipzig, Leipzig, Germany,To whom correspondence should be addressed; tel: +49-341-97-25677; fax: +49-341-97-15049, e-mail:
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Schäfer D, Tomiuk S, Küster LN, Rawashdeh WA, Henze J, Tischler-Höhle G, Agorku DJ, Brauner J, Linnartz C, Lock D, Kaiser A, Herbel C, Eckardt D, Lamorte M, Lenhard D, Schüler J, Ströbel P, Missbach-Guentner J, Pinkert-Leetsch D, Alves F, Bosio A, Hardt O. Identification of CD318, TSPAN8 and CD66c as target candidates for CAR T cell based immunotherapy of pancreatic adenocarcinoma. Nat Commun 2021; 12:1453. [PMID: 33674603 PMCID: PMC7935963 DOI: 10.1038/s41467-021-21774-4] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Accepted: 02/09/2021] [Indexed: 12/17/2022] Open
Abstract
A major roadblock prohibiting effective cellular immunotherapy of pancreatic ductal adenocarcinoma (PDAC) is the lack of suitable tumor-specific antigens. To address this challenge, here we combine flow cytometry screenings, bioinformatic expression analyses and a cyclic immunofluorescence platform. We identify CLA, CD66c, CD318 and TSPAN8 as target candidates among 371 antigens and generate 32 CARs specific for these molecules. CAR T cell activity is evaluated in vitro based on target cell lysis, T cell activation and cytokine release. Promising constructs are evaluated in vivo. CAR T cells specific for CD66c, CD318 and TSPAN8 demonstrate efficacies ranging from stabilized disease to complete tumor eradication with CD318 followed by TSPAN8 being the most promising candidates for clinical translation based on functionality and predicted safety profiles. This study reveals potential target candidates for CAR T cell based immunotherapy of PDAC together with a functional set of CAR constructs specific for these molecules.
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Affiliation(s)
- Daniel Schäfer
- Miltenyi Biotec GmbH, R&D, Bergisch Gladbach, North Rhine-Westphalia, Germany
- University Medical Center Göttingen, Clinic for Hematology and Medical Oncology, Göttingen, Lower Saxony, Germany
- University Medical Center Göttingen, Institute for Diagnostic and Interventional Radiology, Göttingen, Lower Saxony, Germany
| | - Stefan Tomiuk
- Miltenyi Biotec GmbH, R&D, Bergisch Gladbach, North Rhine-Westphalia, Germany
| | - Laura N Küster
- Miltenyi Biotec GmbH, R&D, Bergisch Gladbach, North Rhine-Westphalia, Germany
| | - Wa'el Al Rawashdeh
- Miltenyi Biotec GmbH, R&D, Bergisch Gladbach, North Rhine-Westphalia, Germany
| | - Janina Henze
- Miltenyi Biotec GmbH, R&D, Bergisch Gladbach, North Rhine-Westphalia, Germany
- University Medical Center Göttingen, Clinic for Hematology and Medical Oncology, Göttingen, Lower Saxony, Germany
- University Medical Center Göttingen, Institute for Diagnostic and Interventional Radiology, Göttingen, Lower Saxony, Germany
| | | | - David J Agorku
- Miltenyi Biotec GmbH, R&D, Bergisch Gladbach, North Rhine-Westphalia, Germany
| | - Janina Brauner
- Miltenyi Biotec GmbH, R&D, Bergisch Gladbach, North Rhine-Westphalia, Germany
| | - Cathrin Linnartz
- Miltenyi Biotec GmbH, R&D, Bergisch Gladbach, North Rhine-Westphalia, Germany
| | - Dominik Lock
- Miltenyi Biotec GmbH, R&D, Bergisch Gladbach, North Rhine-Westphalia, Germany
| | - Andrew Kaiser
- Miltenyi Biotec GmbH, R&D, Bergisch Gladbach, North Rhine-Westphalia, Germany
| | - Christoph Herbel
- Miltenyi Biotec GmbH, R&D, Bergisch Gladbach, North Rhine-Westphalia, Germany
| | - Dominik Eckardt
- Miltenyi Biotec GmbH, R&D, Bergisch Gladbach, North Rhine-Westphalia, Germany
| | - Melina Lamorte
- Charles River Discovery Research Services GmbH, Freiburg, Baden-Wuerttemberg, Germany
| | - Dorothee Lenhard
- Charles River Discovery Research Services GmbH, Freiburg, Baden-Wuerttemberg, Germany
| | - Julia Schüler
- Charles River Discovery Research Services GmbH, Freiburg, Baden-Wuerttemberg, Germany
| | - Philipp Ströbel
- University Medical Center Göttingen, Institute for Pathology, Göttingen, Lower Saxony, Germany
| | - Jeannine Missbach-Guentner
- University Medical Center Göttingen, Institute for Diagnostic and Interventional Radiology, Göttingen, Lower Saxony, Germany
| | - Diana Pinkert-Leetsch
- University Medical Center Göttingen, Institute for Diagnostic and Interventional Radiology, Göttingen, Lower Saxony, Germany
- Max Planck Institute for Experimental Medicine, Translational Molecular Imaging, Göttingen, Lower Saxony, Germany
| | - Frauke Alves
- University Medical Center Göttingen, Clinic for Hematology and Medical Oncology, Göttingen, Lower Saxony, Germany
- University Medical Center Göttingen, Institute for Diagnostic and Interventional Radiology, Göttingen, Lower Saxony, Germany
- Max Planck Institute for Experimental Medicine, Translational Molecular Imaging, Göttingen, Lower Saxony, Germany
| | - Andreas Bosio
- Miltenyi Biotec GmbH, R&D, Bergisch Gladbach, North Rhine-Westphalia, Germany
| | - Olaf Hardt
- Miltenyi Biotec GmbH, R&D, Bergisch Gladbach, North Rhine-Westphalia, Germany.
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Khan A, Markus A, Rittmann T, Albers J, Alves F, Hülsmann S, Dullin C. Simple low dose radiography allows precise lung volume assessment in mice. Sci Rep 2021; 11:4163. [PMID: 33602964 PMCID: PMC7893164 DOI: 10.1038/s41598-021-83319-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [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: 11/09/2020] [Accepted: 01/08/2021] [Indexed: 02/07/2023] Open
Abstract
X-ray based lung function (XLF) as a planar method uses dramatically less X-ray dose than computed tomography (CT) but so far lacked the ability to relate its parameters to pulmonary air volume. The purpose of this study was to calibrate the functional constituents of XLF that are biomedically decipherable and directly comparable to that of micro-CT and whole-body plethysmography (WBP). Here, we developed a unique set-up for simultaneous assessment of lung function and volume using XLF, micro-CT and WBP on healthy mice. Our results reveal a strong correlation of lung volumes obtained from radiographic XLF and micro-CT and demonstrate that XLF is superior to WBP in sensitivity and precision to assess lung volumes. Importantly, XLF measurement uses only a fraction of the radiation dose and acquisition time required for CT. Therefore, the redefined XLF approach is a promising tool for preclinical longitudinal studies with a substantial potential of clinical translation.
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Affiliation(s)
- Amara Khan
- Translational Molecular Imaging, Max-Planck-Institute for Experimental Medicine, Hermann-Rein-Straße 3, 37075, Göttingen, Germany
| | - Andrea Markus
- Translational Molecular Imaging, Max-Planck-Institute for Experimental Medicine, Hermann-Rein-Straße 3, 37075, Göttingen, Germany
| | - Thomas Rittmann
- 4th Physical Institute - Solids and Nanostructures, University of Göttingen, Friedrich-Hund-Platz 1, 37077, Göttingen, Germany
| | - Jonas Albers
- Translational Molecular Imaging, Max-Planck-Institute for Experimental Medicine, Hermann-Rein-Straße 3, 37075, Göttingen, Germany
- Institute for Diagnostic and Interventional Radiology, University Medical Center Göttingen, Robert-Koch-Straße 40, 37075, Göttingen, Germany
| | - Frauke Alves
- Translational Molecular Imaging, Max-Planck-Institute for Experimental Medicine, Hermann-Rein-Straße 3, 37075, Göttingen, Germany
- Institute for Diagnostic and Interventional Radiology, University Medical Center Göttingen, Robert-Koch-Straße 40, 37075, Göttingen, Germany
- Clinic for Hematology and Medical Oncology, University Medical Center Göttingen, Robert-Koch-Str. 40, 37075, Göttingen, Germany
| | - Swen Hülsmann
- Clinic for Anesthesiology, University Medical Center Göttingen, Humboldtallee 23, 37073, Göttingen, Germany
| | - Christian Dullin
- Translational Molecular Imaging, Max-Planck-Institute for Experimental Medicine, Hermann-Rein-Straße 3, 37075, Göttingen, Germany.
- Institute for Diagnostic and Interventional Radiology, University Medical Center Göttingen, Robert-Koch-Straße 40, 37075, Göttingen, Germany.
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49
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Sier VQ, de Vries MR, van der Vorst JR, Vahrmeijer AL, van Kooten C, Cruz LJ, de Geus-Oei LF, Ferreira V, Sier CFM, Alves F, Muthana M. Cell-Based Tracers as Trojan Horses for Image-Guided Surgery. Int J Mol Sci 2021; 22:E755. [PMID: 33451116 PMCID: PMC7828607 DOI: 10.3390/ijms22020755] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 12/29/2020] [Accepted: 12/30/2020] [Indexed: 12/14/2022] Open
Abstract
Surgeons rely almost completely on their own vision and palpation to recognize affected tissues during surgery. Consequently, they are often unable to distinguish between different cells and tissue types. This makes accurate and complete resection cumbersome. Targeted image-guided surgery (IGS) provides a solution by enabling real-time tissue recognition. Most current targeting agents (tracers) consist of antibodies or peptides equipped with a radiolabel for Positron Emission Tomography (PET) and Single Photon Emission Computed Tomography (SPECT), magnetic resonance imaging (MRI) labels, or a near-infrared fluorescent (NIRF) dye. These tracers are preoperatively administered to patients, home in on targeted cells or tissues, and are visualized in the operating room via dedicated imaging systems. Instead of using these 'passive' tracers, there are other, more 'active' approaches of probe delivery conceivable by using living cells (macrophages/monocytes, neutrophils, T cells, mesenchymal stromal cells), cell(-derived) fragments (platelets, extracellular vesicles (exosomes)), and microorganisms (bacteria, viruses) or, alternatively, 'humanized' nanoparticles. Compared with current tracers, these active contrast agents might be more efficient for the specific targeting of tumors or other pathological tissues (e.g., atherosclerotic plaques). This review provides an overview of the arsenal of possibilities applicable for the concept of cell-based tracers for IGS.
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Affiliation(s)
- Vincent Q. Sier
- Department of Surgery, Leiden University Medical Center, 2300 RC Leiden, The Netherlands; (V.Q.S.); (M.R.d.V.); (J.R.v.d.V.); (A.L.V.)
| | - Margreet R. de Vries
- Department of Surgery, Leiden University Medical Center, 2300 RC Leiden, The Netherlands; (V.Q.S.); (M.R.d.V.); (J.R.v.d.V.); (A.L.V.)
| | - Joost R. van der Vorst
- Department of Surgery, Leiden University Medical Center, 2300 RC Leiden, The Netherlands; (V.Q.S.); (M.R.d.V.); (J.R.v.d.V.); (A.L.V.)
| | - Alexander L. Vahrmeijer
- Department of Surgery, Leiden University Medical Center, 2300 RC Leiden, The Netherlands; (V.Q.S.); (M.R.d.V.); (J.R.v.d.V.); (A.L.V.)
| | - Cornelis van Kooten
- Department of Nephrology, Leiden University Medical Center, 2300 RC Leiden, The Netherlands;
| | - Luis J. Cruz
- Department of Radiology, Translational Nanomaterials and Imaging Group, Leiden University Medical Center, 2300 RC Leiden, The Netherlands;
| | - Lioe-Fee de Geus-Oei
- Department of Radiology, Section of Nuclear Medicine, Leiden University Medical Center, 2300 RC Leiden, The Netherlands;
- Biomedical Photonic Imaging Group, University of Twente, 7522 NB Enschede, The Netherlands
| | - Valerie Ferreira
- Department of Research and Development, UniQure, 1100 DA Amsterdam, The Netherlands;
| | - Cornelis F. M. Sier
- Department of Surgery, Leiden University Medical Center, 2300 RC Leiden, The Netherlands; (V.Q.S.); (M.R.d.V.); (J.R.v.d.V.); (A.L.V.)
- Percuros B.V. Leiden, 2333 CL Leiden, The Netherlands
| | - Frauke Alves
- Translational Molecular Imaging, Clinic of Hematology and Medical Oncology, Institute of Diagnostic and Interventional Radiology, University Medicine Center Göttingen and Max-Planck-Institute for Experimental Medicine, 37075 Göttingen, Germany;
| | - Munitta Muthana
- Department of Infection and Immunity, University of Sheffield, Sheffield S10 2RX, UK;
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50
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Nicolas JD, Khan A, Markus A, Mohamed BA, Toischer K, Alves F, Salditt T. X-ray diffraction and second harmonic imaging reveal new insights into structural alterations caused by pressure-overload in murine hearts. Sci Rep 2020; 10:19317. [PMID: 33168890 PMCID: PMC7653033 DOI: 10.1038/s41598-020-76163-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [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: 05/07/2020] [Accepted: 10/13/2020] [Indexed: 12/28/2022] Open
Abstract
We demonstrate a label-free imaging approach to study cardiac remodeling of fibrotic and hypertrophic hearts, bridging scales from the whole organ down to the molecular level. To this end, we have used mice subjected to transverse aortic constriction and imaged adjacent cardiac tissue sections by microfocus X-ray diffraction and second harmonic generation (SHG) imaging. In this way, the acto-myosin structure was probed in a spatially resolved manner for entire heart sections. From the recorded diffraction data, spatial maps of diffraction intensity, anisotropy and orientation were obtained, and fully automated analysis depicted the acto-myosin filament spacing and direction. X-ray diffraction presented an overview of entire heart sections and revealed that in regions of severe cardiac remodeling the muscle mass is partly replaced by connective tissue and the acto-myosin lattice spacing is increased at these regions. SHG imaging revealed sub-cellular structure of cardiac tissue and complemented the findings from X-ray diffraction by revealing micro-level distortion of myofibrils, immune cell infiltration at regions of cardiac remodeling and the development of fibrosis down to the scale of a single collagen fibril. Overall, our results show that both X-ray diffraction and SHG imaging can be used for label-free and high-resolution visualization of cardiac remodeling and fibrosis progression at different stages in a cardiac pressure-overload mouse model that cannot be achieved by conventional histology.
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Affiliation(s)
- Jan-David Nicolas
- Institute for X-Ray Physics, Georg-August-Universität Göttingen, Friedrich-Hund-Platz 1, 37077, Göttingen, Germany
| | - Amara Khan
- Translational Molecular Imaging, Max-Planck-Institute for Experimental Medicine, Hermann-Rein-Straße 3, 37075, Göttingen, Germany
| | - Andrea Markus
- Translational Molecular Imaging, Max-Planck-Institute for Experimental Medicine, Hermann-Rein-Straße 3, 37075, Göttingen, Germany
| | - Belal A Mohamed
- Clinic for Cardiology and Pneumology, University Medical Center Göttingen, Robert-Koch-Straße 40, 37075, Göttingen, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Göttingen, 37075, Göttingen, Germany
| | - Karl Toischer
- Clinic for Cardiology and Pneumology, University Medical Center Göttingen, Robert-Koch-Straße 40, 37075, Göttingen, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Göttingen, 37075, Göttingen, Germany
| | - Frauke Alves
- Translational Molecular Imaging, Max-Planck-Institute for Experimental Medicine, Hermann-Rein-Straße 3, 37075, Göttingen, Germany.
- Clinic for Hematology and Medical Oncology, Institute for Diagnostic and Interventional Radiology, University Medical Center Göttingen, Robert-Koch-Straße 40, 37075, Göttingen, Germany.
| | - Tim Salditt
- Institute for X-Ray Physics, Georg-August-Universität Göttingen, Friedrich-Hund-Platz 1, 37077, Göttingen, Germany.
- Cluster of Excellence "Multiscale Bioimaging: from Molecular Machines to Networks of Excitable Cells", University Medical Center Göttingen, Robert-Koch-Straße 40, 37075, Göttingen, Germany.
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