1
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Beets I, Zels S, Vandewyer E, Demeulemeester J, Caers J, Baytemur E, Courtney A, Golinelli L, Hasakioğulları İ, Schafer WR, Vértes PE, Mirabeau O, Schoofs L. System-wide mapping of peptide-GPCR interactions in C. elegans. Cell Rep 2023; 42:113058. [PMID: 37656621 PMCID: PMC7615250 DOI: 10.1016/j.celrep.2023.113058] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 07/19/2023] [Accepted: 08/16/2023] [Indexed: 09/03/2023] Open
Abstract
Neuropeptides and peptide hormones are ancient, widespread signaling molecules that underpin almost all brain functions. They constitute a broad ligand-receptor network, mainly by binding to G protein-coupled receptors (GPCRs). However, the organization of the peptidergic network and roles of many peptides remain elusive, as our insight into peptide-receptor interactions is limited and many peptide GPCRs are still orphan receptors. Here we report a genome-wide peptide-GPCR interaction map in Caenorhabditis elegans. By reverse pharmacology screening of over 55,384 possible interactions, we identify 461 cognate peptide-GPCR couples that uncover a broad signaling network with specific and complex combinatorial interactions encoded across and within single peptidergic genes. These interactions provide insights into peptide functions and evolution. Combining our dataset with phylogenetic analysis supports peptide-receptor co-evolution and conservation of at least 14 bilaterian peptidergic systems in C. elegans. This resource lays a foundation for system-wide analysis of the peptidergic network.
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Affiliation(s)
- Isabel Beets
- Department of Biology, KU Leuven, 3000 Leuven, Belgium.
| | - Sven Zels
- Department of Biology, KU Leuven, 3000 Leuven, Belgium
| | | | - Jonas Demeulemeester
- The Francis Crick Institute, London NW1 1AT, UK; VIB - KU Leuven Center for Cancer Biology, 3000 Leuven, Belgium; Department of Oncology, KU Leuven, 3000 Leuven, Belgium
| | - Jelle Caers
- Department of Biology, KU Leuven, 3000 Leuven, Belgium
| | - Esra Baytemur
- Department of Biology, KU Leuven, 3000 Leuven, Belgium
| | - Amy Courtney
- Neurobiology Division, MRC Laboratory of Molecular Biology, Cambridge CB2 0QH, UK
| | | | | | - William R Schafer
- Neurobiology Division, MRC Laboratory of Molecular Biology, Cambridge CB2 0QH, UK
| | - Petra E Vértes
- Department of Psychiatry, Behavioural and Clinical Neuroscience Institute, University of Cambridge, Cambridge CB2 3EB, UK
| | - Olivier Mirabeau
- Institut Pasteur, Université Paris Cité, Bioinformatics and Biostatistics Hub, Inserm U1224, Brain-Immune Communication Lab, 75015 Paris, France
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2
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Vrancken L, Lejeune M, Pirotte M, Duray E, Köse M, Beguin Y, Caers J. [Multiple myeloma : an overview of advances in biology and treatment]. Rev Med Liege 2021; 76:482-487. [PMID: 34080384] [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] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Multiple myeloma is the second most common hematological malignancy, characterized by an uncontrollable proliferation of clonal plasma cells. Although progresses in understanding its pathobiology and its treatment are made every day, it remains incurable. Since myeloma is more and more common, especially in the elderly, we would like to propose an overview of its pathobiology, diagnostic criteria and treatment «guidelines».
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Affiliation(s)
- L Vrancken
- Service d'Hématologie, CHU Liège, Belgique ; Laboratoire d'Hématologie, GIGA-I³, ULiège, Belgique
| | - M Lejeune
- Service d'Hématologie, CHU Liège, Belgique ; Laboratoire d'Hématologie, GIGA-I³, ULiège, Belgique
| | - M Pirotte
- Service d'Hématologie, CHU Liège, Belgique ; Laboratoire d'Hématologie, GIGA-I³, ULiège, Belgique
| | - E Duray
- Service d'Hématologie, CHU Liège, Belgique ; Laboratoire d'Hématologie, GIGA-I³, ULiège, Belgique
| | - M Köse
- Service d'Hématologie, CHU Liège, Belgique ; Laboratoire d'Hématologie, GIGA-I³, ULiège, Belgique
| | - Y Beguin
- Service d'Hématologie, CHU Liège, Belgique ; Laboratoire d'Hématologie, GIGA-I³, ULiège, Belgique
| | - J Caers
- Service d'Hématologie, CHU Liège, Belgique ; Laboratoire d'Hématologie, GIGA-I³, ULiège, Belgique
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3
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Radermecker A, Bonnet C, Lutteri L, Chapelle AC, Petignot S, Lievens I, Caers J. [An illustrative case of the POEMS syndrome]. Rev Med Liege 2021; 76:156-159. [PMID: 33682383] [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] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
POEMS syndrome is a rare and invalidating entity characterized by polyneuropathy, organomegaly, endocrinopathy, monoclonal gammopathy and dermatoses. The diagnosis of this condition is often late and challenging due to the heterogeneity of clinical forms. The light chains secreted by the clonal plasmocytes cause overproduction of VEGF (Vascular Endothelial Growth Factor) responsible for the appearance of the clinical manifestations of POEMS. The diagnostic approach is based on different clinical and biological criteria. Patients with a solitary plasmacytoma are candidates for radiotherapy treatment. Patients with diffuse bone involvement or bone marrow infiltration are best treated by systemic drugs. The response to treatment may take several months before clinical and biological improvement. Early diagnosis and dedicated management limit the clinico-functional impact of POEMS.
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Affiliation(s)
| | - C Bonnet
- Service d'Hématologie, CHU Liège, Belgique
| | - L Lutteri
- Service de Chimie Clinique, CHU Liège, Belgique
| | | | - S Petignot
- Service d'Endocrinologie, CHU Liège, Belgique
| | - I Lievens
- Service de Neurologie, CHU Liège, Belgique
| | - J Caers
- Service d'Hématologie, CHU Liège, Belgique
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4
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Attardo GM, Abd-Alla AMM, Acosta-Serrano A, Allen JE, Bateta R, Benoit JB, Bourtzis K, Caers J, Caljon G, Christensen MB, Farrow DW, Friedrich M, Hua-Van A, Jennings EC, Larkin DM, Lawson D, Lehane MJ, Lenis VP, Lowy-Gallego E, Macharia RW, Malacrida AR, Marco HG, Masiga D, Maslen GL, Matetovici I, Meisel RP, Meki I, Michalkova V, Miller WJ, Minx P, Mireji PO, Ometto L, Parker AG, Rio R, Rose C, Rosendale AJ, Rota-Stabelli O, Savini G, Schoofs L, Scolari F, Swain MT, Takáč P, Tomlinson C, Tsiamis G, Van Den Abbeele J, Vigneron A, Wang J, Warren WC, Waterhouse RM, Weirauch MT, Weiss BL, Wilson RK, Zhao X, Aksoy S. Comparative genomic analysis of six Glossina genomes, vectors of African trypanosomes. Genome Biol 2019; 20:187. [PMID: 31477173 PMCID: PMC6721284 DOI: 10.1186/s13059-019-1768-2] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Accepted: 07/22/2019] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Tsetse flies (Glossina sp.) are the vectors of human and animal trypanosomiasis throughout sub-Saharan Africa. Tsetse flies are distinguished from other Diptera by unique adaptations, including lactation and the birthing of live young (obligate viviparity), a vertebrate blood-specific diet by both sexes, and obligate bacterial symbiosis. This work describes the comparative analysis of six Glossina genomes representing three sub-genera: Morsitans (G. morsitans morsitans, G. pallidipes, G. austeni), Palpalis (G. palpalis, G. fuscipes), and Fusca (G. brevipalpis) which represent different habitats, host preferences, and vectorial capacity. RESULTS Genomic analyses validate established evolutionary relationships and sub-genera. Syntenic analysis of Glossina relative to Drosophila melanogaster shows reduced structural conservation across the sex-linked X chromosome. Sex-linked scaffolds show increased rates of female-specific gene expression and lower evolutionary rates relative to autosome associated genes. Tsetse-specific genes are enriched in protease, odorant-binding, and helicase activities. Lactation-associated genes are conserved across all Glossina species while male seminal proteins are rapidly evolving. Olfactory and gustatory genes are reduced across the genus relative to other insects. Vision-associated Rhodopsin genes show conservation of motion detection/tracking functions and variance in the Rhodopsin detecting colors in the blue wavelength ranges. CONCLUSIONS Expanded genomic discoveries reveal the genetics underlying Glossina biology and provide a rich body of knowledge for basic science and disease control. They also provide insight into the evolutionary biology underlying novel adaptations and are relevant to applied aspects of vector control such as trap design and discovery of novel pest and disease control strategies.
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Affiliation(s)
- Geoffrey M Attardo
- Department of Entomology and Nematology, University of California, Davis, Davis, CA, USA.
| | - Adly M M Abd-Alla
- Insect Pest Control Laboratory, Joint FAO/IAEA Division of Nuclear Techniques in Food & Agriculture, Vienna, Vienna, Austria
| | - Alvaro Acosta-Serrano
- Department of Vector Biology, Liverpool School of Tropical Medicine, Merseyside, Liverpool, UK
| | - James E Allen
- VectorBase, European Molecular Biology Laboratory, European Bioinformatics Institute (EMBL-EBI), Cambridge, Cambridgeshire, UK
| | - Rosemary Bateta
- Department of Biochemistry, Biotechnology Research Institute - Kenya Agricultural and Livestock Research Organization, Kikuyu, Kenya
| | - Joshua B Benoit
- Department of Biological Sciences, University of Cincinnati, Cincinnati, OH, USA
| | - Kostas Bourtzis
- Insect Pest Control Laboratory, Joint FAO/IAEA Division of Nuclear Techniques in Food & Agriculture, Vienna, Vienna, Austria
| | - Jelle Caers
- Department of Biology - Functional Genomics and Proteomics Group, KU Leuven, Leuven, Belgium
| | - Guy Caljon
- Laboratory of Microbiology, Parasitology and Hygiene, University of Antwerp, Antwerp, Belgium
| | - Mikkel B Christensen
- VectorBase, European Molecular Biology Laboratory, European Bioinformatics Institute (EMBL-EBI), Cambridge, Cambridgeshire, UK
| | - David W Farrow
- Department of Biological Sciences, University of Cincinnati, Cincinnati, OH, USA
| | - Markus Friedrich
- Department of Biological Sciences, Wayne State University, Detroit, MI, USA
| | - Aurélie Hua-Van
- Laboratoire Evolution, Genomes, Comportement, Ecologie, CNRS, IRD, Univ. Paris-Sud, Université Paris-Saclay, Gif-sur-Yvette, France
| | - Emily C Jennings
- Department of Biological Sciences, University of Cincinnati, Cincinnati, OH, USA
| | - Denis M Larkin
- Department of Comparative Biomedical Sciences, Royal Veterinary College, London, UK
| | - Daniel Lawson
- Department of Life Sciences, Imperial College London, London, UK
| | - Michael J Lehane
- Department of Vector Biology, Liverpool School of Tropical Medicine, Merseyside, Liverpool, UK
| | - Vasileios P Lenis
- Schools of Medicine and Dentistry, University of Plymouth, Plymouth, UK
| | - Ernesto Lowy-Gallego
- VectorBase, European Molecular Biology Laboratory, European Bioinformatics Institute (EMBL-EBI), Cambridge, Cambridgeshire, UK
| | - Rosaline W Macharia
- Molecular Biology and Bioinformatics Unit, International Center for Insect Physiology and Ecology, Nairobi, Kenya.,Centre for Biotechnology and Bioinformatics, University of Nairobi, Nairobi, Kenya
| | - Anna R Malacrida
- Department of Biology and Biotechnology, University of Pavia, Pavia, Italy
| | - Heather G Marco
- Department of Biological Sciences, University of Cape Town, Rondebosch, South Africa
| | - Daniel Masiga
- Molecular Biology and Bioinformatics Unit, International Center for Insect Physiology and Ecology, Nairobi, Kenya
| | - Gareth L Maslen
- VectorBase, European Molecular Biology Laboratory, European Bioinformatics Institute (EMBL-EBI), Cambridge, Cambridgeshire, UK
| | - Irina Matetovici
- Biomedical Sciences, Institute of Tropical Medicine, Antwerp, Belgium
| | - Richard P Meisel
- Department of Biology and Biochemistry, University of Houston, Houston, TX, USA
| | - Irene Meki
- Insect Pest Control Laboratory, Joint FAO/IAEA Division of Nuclear Techniques in Food & Agriculture, Vienna, Vienna, Austria
| | - Veronika Michalkova
- Department of Biological Sciences, Florida International University, Miami, Florida, USA.,Institute of Zoology, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Wolfgang J Miller
- Department of Cell and Developmental Biology, Medical University of Vienna, Vienna, Austria
| | - Patrick Minx
- McDonnell Genome Institute, Washington University School of Medicine, St. Louis, MO, USA
| | - Paul O Mireji
- Department of Biochemistry, Biotechnology Research Institute - Kenya Agricultural and Livestock Research Organization, Kikuyu, Kenya.,Centre for Geographic Medicine Research Coast, Kenya Medical Research Institute, Kilifi, Kenya
| | - Lino Ometto
- Department of Sustainable Ecosystems and Bioresources, Research and Innovation Centre, Fondazione Edmund Mach, San Michele all'Adige, TN, Italy.,Department of Biology and Biotechnology, University of Pavia, Pavia, Italy
| | - Andrew G Parker
- Insect Pest Control Laboratory, Joint FAO/IAEA Division of Nuclear Techniques in Food & Agriculture, Vienna, Vienna, Austria
| | - Rita Rio
- Department of Biology, West Virginia University, Morgantown, WV, USA
| | - Clair Rose
- Department of Vector Biology, Liverpool School of Tropical Medicine, Merseyside, Liverpool, UK
| | - Andrew J Rosendale
- Department of Biology, Mount St. Joseph University, Cincinnati, OH, USA.,Department of Biological Sciences, University of Cincinnati, Cincinnati, OH, USA
| | - Omar Rota-Stabelli
- Department of Sustainable Ecosystems and Bioresources, Research and Innovation Centre, Fondazione Edmund Mach, San Michele all'Adige, TN, Italy
| | - Grazia Savini
- Department of Biology and Biotechnology, University of Pavia, Pavia, Italy
| | - Liliane Schoofs
- Department of Biology - Functional Genomics and Proteomics Group, KU Leuven, Leuven, Belgium
| | - Francesca Scolari
- Department of Biology and Biotechnology, University of Pavia, Pavia, Italy
| | - Martin T Swain
- Institute of Biological, Environmental and Rural Sciences, Aberystwyth University, Aberystwyth, Ceredigion, UK
| | - Peter Takáč
- Department of Animal Systematics, Ústav zoológie SAV; Scientica, Ltd, Bratislava, Slovakia
| | - Chad Tomlinson
- McDonnell Genome Institute, Washington University School of Medicine, St. Louis, MO, USA
| | - George Tsiamis
- Department of Environmental and Natural Resources Management, University of Patras, Agrinio, Etoloakarnania, Greece
| | | | - Aurelien Vigneron
- Department of Epidemiology of Microbial Diseases, Yale School of Public Health, New Haven, CT, USA
| | - Jingwen Wang
- School of Life Sciences, Fudan University, Shanghai, China
| | - Wesley C Warren
- McDonnell Genome Institute, Washington University School of Medicine, St. Louis, MO, USA.,Bond Life Sciences Center, University of Missouri, Columbia, MO, USA
| | - Robert M Waterhouse
- Department of Ecology & Evolution, Swiss Institute of Bioinformatics, University of Lausanne, Lausanne, Switzerland
| | - Matthew T Weirauch
- Center for Autoimmune Genomics and Etiology and Divisions of Biomedical Informatics and Developmental Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Brian L Weiss
- Department of Epidemiology of Microbial Diseases, Yale School of Public Health, New Haven, CT, USA
| | - Richard K Wilson
- McDonnell Genome Institute, Washington University School of Medicine, St. Louis, MO, USA
| | - Xin Zhao
- CAS Center for Influenza Research and Early-warning (CASCIRE), Chinese Academy of Sciences, Beijing, China
| | - Serap Aksoy
- Department of Epidemiology of Microbial Diseases, Yale School of Public Health, New Haven, CT, USA.
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5
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Attardo GM, Abd-Alla AMM, Acosta-Serrano A, Allen JE, Bateta R, Benoit JB, Bourtzis K, Caers J, Caljon G, Christensen MB, Farrow DW, Friedrich M, Hua-Van A, Jennings EC, Larkin DM, Lawson D, Lehane MJ, Lenis VP, Lowy-Gallego E, Macharia RW, Malacrida AR, Marco HG, Masiga D, Maslen GL, Matetovici I, Meisel RP, Meki I, Michalkova V, Miller WJ, Minx P, Mireji PO, Ometto L, Parker AG, Rio R, Rose C, Rosendale AJ, Rota-Stabelli O, Savini G, Schoofs L, Scolari F, Swain MT, Takáč P, Tomlinson C, Tsiamis G, Van Den Abbeele J, Vigneron A, Wang J, Warren WC, Waterhouse RM, Weirauch MT, Weiss BL, Wilson RK, Zhao X, Aksoy S. Comparative genomic analysis of six Glossina genomes, vectors of African trypanosomes. Genome Biol 2019; 20:187. [PMID: 31477173 DOI: 10.1101/531749] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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: 01/31/2019] [Accepted: 07/22/2019] [Indexed: 05/24/2023] Open
Abstract
BACKGROUND Tsetse flies (Glossina sp.) are the vectors of human and animal trypanosomiasis throughout sub-Saharan Africa. Tsetse flies are distinguished from other Diptera by unique adaptations, including lactation and the birthing of live young (obligate viviparity), a vertebrate blood-specific diet by both sexes, and obligate bacterial symbiosis. This work describes the comparative analysis of six Glossina genomes representing three sub-genera: Morsitans (G. morsitans morsitans, G. pallidipes, G. austeni), Palpalis (G. palpalis, G. fuscipes), and Fusca (G. brevipalpis) which represent different habitats, host preferences, and vectorial capacity. RESULTS Genomic analyses validate established evolutionary relationships and sub-genera. Syntenic analysis of Glossina relative to Drosophila melanogaster shows reduced structural conservation across the sex-linked X chromosome. Sex-linked scaffolds show increased rates of female-specific gene expression and lower evolutionary rates relative to autosome associated genes. Tsetse-specific genes are enriched in protease, odorant-binding, and helicase activities. Lactation-associated genes are conserved across all Glossina species while male seminal proteins are rapidly evolving. Olfactory and gustatory genes are reduced across the genus relative to other insects. Vision-associated Rhodopsin genes show conservation of motion detection/tracking functions and variance in the Rhodopsin detecting colors in the blue wavelength ranges. CONCLUSIONS Expanded genomic discoveries reveal the genetics underlying Glossina biology and provide a rich body of knowledge for basic science and disease control. They also provide insight into the evolutionary biology underlying novel adaptations and are relevant to applied aspects of vector control such as trap design and discovery of novel pest and disease control strategies.
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Affiliation(s)
- Geoffrey M Attardo
- Department of Entomology and Nematology, University of California, Davis, Davis, CA, USA.
| | - Adly M M Abd-Alla
- Insect Pest Control Laboratory, Joint FAO/IAEA Division of Nuclear Techniques in Food & Agriculture, Vienna, Vienna, Austria
| | - Alvaro Acosta-Serrano
- Department of Vector Biology, Liverpool School of Tropical Medicine, Merseyside, Liverpool, UK
| | - James E Allen
- VectorBase, European Molecular Biology Laboratory, European Bioinformatics Institute (EMBL-EBI), Cambridge, Cambridgeshire, UK
| | - Rosemary Bateta
- Department of Biochemistry, Biotechnology Research Institute - Kenya Agricultural and Livestock Research Organization, Kikuyu, Kenya
| | - Joshua B Benoit
- Department of Biological Sciences, University of Cincinnati, Cincinnati, OH, USA
| | - Kostas Bourtzis
- Insect Pest Control Laboratory, Joint FAO/IAEA Division of Nuclear Techniques in Food & Agriculture, Vienna, Vienna, Austria
| | - Jelle Caers
- Department of Biology - Functional Genomics and Proteomics Group, KU Leuven, Leuven, Belgium
| | - Guy Caljon
- Laboratory of Microbiology, Parasitology and Hygiene, University of Antwerp, Antwerp, Belgium
| | - Mikkel B Christensen
- VectorBase, European Molecular Biology Laboratory, European Bioinformatics Institute (EMBL-EBI), Cambridge, Cambridgeshire, UK
| | - David W Farrow
- Department of Biological Sciences, University of Cincinnati, Cincinnati, OH, USA
| | - Markus Friedrich
- Department of Biological Sciences, Wayne State University, Detroit, MI, USA
| | - Aurélie Hua-Van
- Laboratoire Evolution, Genomes, Comportement, Ecologie, CNRS, IRD, Univ. Paris-Sud, Université Paris-Saclay, Gif-sur-Yvette, France
| | - Emily C Jennings
- Department of Biological Sciences, University of Cincinnati, Cincinnati, OH, USA
| | - Denis M Larkin
- Department of Comparative Biomedical Sciences, Royal Veterinary College, London, UK
| | - Daniel Lawson
- Department of Life Sciences, Imperial College London, London, UK
| | - Michael J Lehane
- Department of Vector Biology, Liverpool School of Tropical Medicine, Merseyside, Liverpool, UK
| | - Vasileios P Lenis
- Schools of Medicine and Dentistry, University of Plymouth, Plymouth, UK
| | - Ernesto Lowy-Gallego
- VectorBase, European Molecular Biology Laboratory, European Bioinformatics Institute (EMBL-EBI), Cambridge, Cambridgeshire, UK
| | - Rosaline W Macharia
- Molecular Biology and Bioinformatics Unit, International Center for Insect Physiology and Ecology, Nairobi, Kenya
- Centre for Biotechnology and Bioinformatics, University of Nairobi, Nairobi, Kenya
| | - Anna R Malacrida
- Department of Biology and Biotechnology, University of Pavia, Pavia, Italy
| | - Heather G Marco
- Department of Biological Sciences, University of Cape Town, Rondebosch, South Africa
| | - Daniel Masiga
- Molecular Biology and Bioinformatics Unit, International Center for Insect Physiology and Ecology, Nairobi, Kenya
| | - Gareth L Maslen
- VectorBase, European Molecular Biology Laboratory, European Bioinformatics Institute (EMBL-EBI), Cambridge, Cambridgeshire, UK
| | - Irina Matetovici
- Biomedical Sciences, Institute of Tropical Medicine, Antwerp, Belgium
| | - Richard P Meisel
- Department of Biology and Biochemistry, University of Houston, Houston, TX, USA
| | - Irene Meki
- Insect Pest Control Laboratory, Joint FAO/IAEA Division of Nuclear Techniques in Food & Agriculture, Vienna, Vienna, Austria
| | - Veronika Michalkova
- Department of Biological Sciences, Florida International University, Miami, Florida, USA
- Institute of Zoology, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Wolfgang J Miller
- Department of Cell and Developmental Biology, Medical University of Vienna, Vienna, Austria
| | - Patrick Minx
- McDonnell Genome Institute, Washington University School of Medicine, St. Louis, MO, USA
| | - Paul O Mireji
- Department of Biochemistry, Biotechnology Research Institute - Kenya Agricultural and Livestock Research Organization, Kikuyu, Kenya
- Centre for Geographic Medicine Research Coast, Kenya Medical Research Institute, Kilifi, Kenya
| | - Lino Ometto
- Department of Sustainable Ecosystems and Bioresources, Research and Innovation Centre, Fondazione Edmund Mach, San Michele all'Adige, TN, Italy
- Department of Biology and Biotechnology, University of Pavia, Pavia, Italy
| | - Andrew G Parker
- Insect Pest Control Laboratory, Joint FAO/IAEA Division of Nuclear Techniques in Food & Agriculture, Vienna, Vienna, Austria
| | - Rita Rio
- Department of Biology, West Virginia University, Morgantown, WV, USA
| | - Clair Rose
- Department of Vector Biology, Liverpool School of Tropical Medicine, Merseyside, Liverpool, UK
| | - Andrew J Rosendale
- Department of Biology, Mount St. Joseph University, Cincinnati, OH, USA
- Department of Biological Sciences, University of Cincinnati, Cincinnati, OH, USA
| | - Omar Rota-Stabelli
- Department of Sustainable Ecosystems and Bioresources, Research and Innovation Centre, Fondazione Edmund Mach, San Michele all'Adige, TN, Italy
| | - Grazia Savini
- Department of Biology and Biotechnology, University of Pavia, Pavia, Italy
| | - Liliane Schoofs
- Department of Biology - Functional Genomics and Proteomics Group, KU Leuven, Leuven, Belgium
| | - Francesca Scolari
- Department of Biology and Biotechnology, University of Pavia, Pavia, Italy
| | - Martin T Swain
- Institute of Biological, Environmental and Rural Sciences, Aberystwyth University, Aberystwyth, Ceredigion, UK
| | - Peter Takáč
- Department of Animal Systematics, Ústav zoológie SAV; Scientica, Ltd, Bratislava, Slovakia
| | - Chad Tomlinson
- McDonnell Genome Institute, Washington University School of Medicine, St. Louis, MO, USA
| | - George Tsiamis
- Department of Environmental and Natural Resources Management, University of Patras, Agrinio, Etoloakarnania, Greece
| | | | - Aurelien Vigneron
- Department of Epidemiology of Microbial Diseases, Yale School of Public Health, New Haven, CT, USA
| | - Jingwen Wang
- School of Life Sciences, Fudan University, Shanghai, China
| | - Wesley C Warren
- McDonnell Genome Institute, Washington University School of Medicine, St. Louis, MO, USA
- Bond Life Sciences Center, University of Missouri, Columbia, MO, USA
| | - Robert M Waterhouse
- Department of Ecology & Evolution, Swiss Institute of Bioinformatics, University of Lausanne, Lausanne, Switzerland
| | - Matthew T Weirauch
- Center for Autoimmune Genomics and Etiology and Divisions of Biomedical Informatics and Developmental Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Brian L Weiss
- Department of Epidemiology of Microbial Diseases, Yale School of Public Health, New Haven, CT, USA
| | - Richard K Wilson
- McDonnell Genome Institute, Washington University School of Medicine, St. Louis, MO, USA
| | - Xin Zhao
- CAS Center for Influenza Research and Early-warning (CASCIRE), Chinese Academy of Sciences, Beijing, China
| | - Serap Aksoy
- Department of Epidemiology of Microbial Diseases, Yale School of Public Health, New Haven, CT, USA.
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6
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Bringhen S, Milan A, D'Agostino M, Ferri C, Wäsch R, Gay F, Larocca A, Offidani M, Zweegman S, Terpos E, Goldschmidt H, Cavo M, Ludwig H, Driessen C, Auner HW, Caers J, Gramatzki M, Dimopoulos MA, Boccadoro M, Einsele H, Sonneveld P, Engelhardt M. Prevention, monitoring and treatment of cardiovascular adverse events in myeloma patients receiving carfilzomib A consensus paper by the European Myeloma Network and the Italian Society of Arterial Hypertension. J Intern Med 2019; 286:63-74. [PMID: 30725503 DOI: 10.1111/joim.12882] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND The novel proteasome inhibitor carfilzomib alone or in combination with other agents is already one of the standard therapies for relapsed and/or refractory multiple myeloma (MM) patients and produces impressive response rates in newly diagnosed MM as well. However, carfilzomib-related cardiovascular adverse events (CVAEs) - including hypertension (all grades: 12.2%; grade ≥3: 4.3%), heart failure (all grades: 4.1%; grade ≥3: 2.5%) and ischemic heart disease (all grades: 1.8%; grade ≥3: 0.8%) - may lead to treatment suspensions. At present, there are neither prospective studies nor expert consensus on the prevention, monitoring and treatment of CVAEs in myeloma patients treated with carfilzomib. METHODS An expert panel of the European Myeloma Network in collaboration with the Italian Society of Arterial Hypertension and with the endorsement of the European Hematology Association aimed to provide recommendations to support health professionals in selecting the best management strategies for patients, considering the impact on outcome and the risk-benefit ratio of diagnostic and therapeutic tools, thereby achieving myeloma response with novel combination approaches whilst preventing CVAEs. RESULTS Patients scheduled to receive carfilzomib need a careful cardiovascular evaluation before treatment and an accurate follow-up during treatment. CONCLUSIONS A detailed clinical assessment before starting carfilzomib treatment is essential to identify patients at risk for CVAEs, and accurate monitoring of blood pressure and of early signs and symptoms suggestive of cardiac dysfunction remains pivotal to safely administer carfilzomib without treatment interruptions or dose reductions.
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Affiliation(s)
- S Bringhen
- Myeloma Unit, Division of Hematology, University of Torino, Azienda Ospedaliero-Universitaria Città della Salute e della Scienza di Torino, University of Torino, Torino, Italy
| | - A Milan
- Department of Medical Sciences, Internal Medicine and Hypertension Division, AOU Città della Salute e della Scienza di Torino, Rete Oncologica Piemontese, University of Torino, Torino, Italy
| | - M D'Agostino
- Myeloma Unit, Division of Hematology, University of Torino, Azienda Ospedaliero-Universitaria Città della Salute e della Scienza di Torino, University of Torino, Torino, Italy
| | - C Ferri
- University of L'Aquila, MeSVA Department - San Salvatore Hospital, Division of Internal Medicine & Nephrology, Coppito, Italy
| | - R Wäsch
- Department of Medicine I, Hematology, Oncology & Stem Cell Transplantation, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - F Gay
- Myeloma Unit, Division of Hematology, University of Torino, Azienda Ospedaliero-Universitaria Città della Salute e della Scienza di Torino, University of Torino, Torino, Italy
| | - A Larocca
- Myeloma Unit, Division of Hematology, University of Torino, Azienda Ospedaliero-Universitaria Città della Salute e della Scienza di Torino, University of Torino, Torino, Italy
| | - M Offidani
- Clinica di Ematologia, AOU Ospedali Riuniti di Ancona, Ancona, Italy
| | - S Zweegman
- Amsterdam UMC, Vrije Universiteit Amsterdam, VU University Medical Center, Department of Hematology, Cancer Center Amsterdam, Amsterdam, the Netherlands
| | - E Terpos
- Department of Clinical Therapeutics, National and Kapodistrian University of Athens, School of Medicine, Athens, Greece
| | - H Goldschmidt
- University Clinic Heidelberg, Internal Medicine V and National Center for Tumor Diseases (NCT), Heidelberg, Germany
| | - M Cavo
- 'Seràgnoli' Institute of Hematology and Medical Oncology, University of Bologna, Bologna, Italy
| | - H Ludwig
- 1. Medical Department and Oncology, Wilhelminenspital Wien, Vienna, Austria
| | - C Driessen
- Department of Oncology and Hematology, Kantonsspital St. Gallen, St. Gallen, Switzerland
| | - H W Auner
- Faculty of Medicine, Department of Medicine, Imperial College London, London, UK
| | - J Caers
- Department of Hematology, Domaine University Liege, Liege, Belgium
| | - M Gramatzki
- Division of Stem Cell Transplantation and Immunotherapy, University of Kiel, Kiel, Germany
| | - M A Dimopoulos
- Department of Clinical Therapeutics, National and Kapodistrian University of Athens, School of Medicine, Athens, Greece
| | - M Boccadoro
- Myeloma Unit, Division of Hematology, University of Torino, Azienda Ospedaliero-Universitaria Città della Salute e della Scienza di Torino, University of Torino, Torino, Italy
| | - H Einsele
- Department of Internal Medicine II, University Hospital Würzburg, Würzburg, Germany
| | - P Sonneveld
- Department of Hematology, Erasmus Medical Center, Rotterdam, the Netherlands
| | - M Engelhardt
- Department of Medicine I, Hematology, Oncology & Stem Cell Transplantation, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
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7
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Caers J, Paiva B, Zamagni E, Leleu X, Bladé J, Kristinsson SY, Touzeau C, Abildgaard N, Terpos E, Heusschen R, Ocio E, Delforge M, Sezer O, Beksac M, Ludwig H, Merlini G, Moreau P, Zweegman S, Engelhardt M, Rosiñol L. Diagnosis, treatment, and response assessment in solitary plasmacytoma: updated recommendations from a European Expert Panel. J Hematol Oncol 2018; 11:10. [PMID: 29338789 PMCID: PMC5771205 DOI: 10.1186/s13045-017-0549-1] [Citation(s) in RCA: 153] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Accepted: 12/26/2017] [Indexed: 02/07/2023] Open
Abstract
Solitary plasmacytoma is an infrequent form of plasma cell dyscrasia that presents as a single mass of monoclonal plasma cells, located either extramedullary or intraosseous. In some patients, a bone marrow aspiration can detect a low monoclonal plasma cell infiltration which indicates a high risk of early progression to an overt myeloma disease. Before treatment initiation, whole body positron emission tomography-computed tomography or magnetic resonance imaging should be performed to exclude the presence of additional malignant lesions. For decades, treatment has been based on high-dose radiation, but studies exploring the potential benefit of systemic therapies for high-risk patients are urgently needed. In this review, a panel of expert European hematologists updates the recommendations on the diagnosis and management of patients with solitary plasmacytoma.
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Affiliation(s)
- J. Caers
- Department of Hematology, CHU de Liège, Liège, Belgium
| | - B. Paiva
- Clinica Universidad de Navarra, Centro de Investigacion Medica Aplicadas (CIMA); Instituto de Investigación Sanitaria de Navarra (IDISNA), CIBERONC, Pamplona, Spain
| | - E. Zamagni
- Seràgnoli Institute of Hematology, Bologna University School of Medicine, Bologna, Italy
| | - X. Leleu
- Hopital La Miletrie, University Hospital of Poitiers, Poitiers, France
| | - J. Bladé
- Department of Hematology, Hospital Clínic de Barcelona, IDIBAPS, Barcelona, Spain
| | - S. Y. Kristinsson
- Department of Hematology, Landspitali National University Hospital, Reykjavik, Iceland
| | - C. Touzeau
- Department of Hematology, University Hospital Hôtel-Dieu, Nantes, France
| | - N. Abildgaard
- Department of Hematology, Odense University Hospital, Odense, Denmark
| | - E. Terpos
- Department of Clinical Therapeutics, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - R. Heusschen
- Department of Hematology, CHU de Liège, Liège, Belgium
| | - E. Ocio
- Instituto de Investigacion Biomedica de Salamanca, Centro de Investigación del Cancer, Hospital Universitario de Salamanca, Salamanca, Spain
| | - M. Delforge
- Department of Hematology, University Hospital Leuven, Leuven, Belgium
| | - O. Sezer
- Department of Haematology, Oncology, and Bone Marrow Transplantation, Universitaetsklinikum Eppendorf, Hamburg, Germany
| | - M. Beksac
- Department of Hematology, University of Ankara, Ankara, Turkey
| | - H. Ludwig
- Department of Medicine I, Wilhelminen Hospital, Vienna, Austria
| | - G. Merlini
- Department of Molecular Medicine, Amyloidosis Research and Treatment Center, Foundation ‘Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Policlinico San Matteo’, University of Pavia, Pavia, Italy
| | - P. Moreau
- Department of Hematology, University Hospital Hôtel-Dieu, Nantes, France
| | - S. Zweegman
- Department of Hematology, VU University Medical Center, Amsterdam, the Netherlands
| | - M. Engelhardt
- Department of Hematology and Oncology, University of Freiburg Medical Center, Freiburg, Germany
| | - L. Rosiñol
- Department of Hematology, Hospital Clínic de Barcelona, IDIBAPS, Barcelona, Spain
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8
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Ludwig H, Delforge M, Facon T, Einsele H, Gay F, Moreau P, Avet-Loiseau H, Boccadoro M, Hajek R, Mohty M, Cavo M, Dimopoulos MA, San-Miguel JF, Terpos E, Zweegman S, Garderet L, Mateos MV, Cook G, Leleu X, Goldschmidt H, Jackson G, Kaiser M, Weisel K, van de Donk NWCJ, Waage A, Beksac M, Mellqvist UH, Engelhardt M, Caers J, Driessen C, Sonneveld P. Prevention and management of adverse events of Novel agents in multiple myeloma: A consensus of the european myeloma network. Leukemia 2017:leu2017353. [PMID: 29251284 DOI: 10.1038/leu.2017.353] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Revised: 11/23/2017] [Accepted: 11/30/2017] [Indexed: 11/08/2022]
Abstract
During the last few years, several new drugs have been introduced for treatment of patients with multiple myeloma, which have significantly improved treatment outcome. All of these novel substances differ at least in part in their mode of action from similar drugs of the same drug class, or are representatives of new drugs classes, and as such present with very specific side effect profiles. In this review, we summarize these adverse events, provide information on their prevention, and give practical guidance for monitoring of patients and for management of adverse events.Leukemia accepted article preview online, 18 December 2017. doi:10.1038/leu.2017.353.
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Affiliation(s)
- H Ludwig
- Wilhelminen Cancer Research Institute, Vienna, Austria
| | - M Delforge
- Stem Cell Biology and Embryology Unit, Department of Development and Regeneration, Catholic University Leuven, Leuven, Belgium
| | - T Facon
- Department of Hematology, Lille University Hospital, Lille, France
| | - H Einsele
- Department of Internal Medicine II, University Hospital of Wuerzburg, Wuerzburg, Germany
| | - F Gay
- Myeloma Unit, Division of Hematology, Azienda Ospedaliero-Universitaria Città della Salute e della Scienza di Torino, University of Torino, Torino, Italy
| | - P Moreau
- Department of Hematology, University Hospital, University of Nantes, Nantes, France
| | - H Avet-Loiseau
- Centre de Recherches en Cancerologie de Toulouse CRCT, Institut National de la Sante et de la Recherche Medicale, Université Toulouse, Toulouse, France
| | - M Boccadoro
- Division of Hematology, Citta della Salute e della Scienza, University of Torino, Torino, Italy
| | - R Hajek
- Faculty of Medicine, University Hospital Ostrava, University of Ostrava, Ostrava, Czech Republic
| | - M Mohty
- Department of Haematology, Saint Antoine Hospital, University Pierre and Marie Curie, and INSERM UMRs 938, Paris, France
| | - M Cavo
- a 'Seràgnoli' Institute of Hematology, Bologna University School of Medicine, Bologna, Italy
| | - M A Dimopoulos
- Department of Clinical Therapeutics, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - J F San-Miguel
- Department of Hematology, Clinica Universidad de Navarra, Centro de Investigación Médica Aplicada (CIMA), IDISNA, CIBERONC, Pamplona, Spain
| | - E Terpos
- Department of Clinical Therapeutics, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - S Zweegman
- Department of Hematology, VU University Medical Center, Amsterdam, Netherlands
| | - L Garderet
- Department of Haematology, Saint Antoine Hospital, University Pierre and Marie Curie, and INSERM UMRs 938, Paris, France
| | - M-V Mateos
- Hospital Universitario de Salamanca, Instituto Biosanitario de Salamanca (IBSAL), Salamanca, Spain
| | - G Cook
- Leeds Institute of Cancer and Pathology, University of Leeds, Leeds, UK
| | - X Leleu
- Service d'Hématologie et Thérapie Cellulaire, PRC, and Inserm CIC1402, Hospital de la Miléterie, Poitiers, France
| | - H Goldschmidt
- National Center for Tumor Diseases, Heidelberg Medical University, Heidelberg, Germany
| | - G Jackson
- Department of Hematology, Newcastle University, Newcastle, UK
| | - M Kaiser
- Myeloma Group, The Institute of Cancer Research ICR, London, UK
| | - K Weisel
- Department of Hematology and Oncology, University of Tuebingen, Tuebingen, Germany
| | - N W C J van de Donk
- Department of Hematology, VU University Medical Center, Amsterdam, Netherlands
| | - A Waage
- Department of Hematology, St Olavs Hospital, and IKOM, NTNU, Trondheim, Norway
| | - M Beksac
- Department of Medicine, Ankara University, Ankara, Turkey
| | - U H Mellqvist
- Department of Hematology Sahlgrenska Hospital, Gothenburg, Sweden
| | - M Engelhardt
- Department of Hematology and Oncology, University of Freiburg Medical Center, Freiburg, Germany
| | - J Caers
- Department of Hematology, University Hospital of Liège, Liège, Belgium
| | - C Driessen
- Department of Oncology and Hematology, Cantonal Hospital St. Gallen, St. Gallen, Switzerland
| | - P Sonneveld
- Department of Hematology, Erasmus MC Cancer Institute, Rotterdam, Netherlands
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9
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Caers J, Van Hiel MB, Peymen K, Zels S, Van Rompay L, Van Den Abbeele J, Schoofs L, Beets I. Characterization of a neuropeptide F receptor in the tsetse fly, Glossina morsitans morsitans. J Insect Physiol 2016; 93-94:105-111. [PMID: 27677695 DOI: 10.1016/j.jinsphys.2016.09.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [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: 05/06/2016] [Revised: 09/21/2016] [Accepted: 09/22/2016] [Indexed: 06/06/2023]
Abstract
Neuropeptides related to mammalian neuropeptide Y (NPY) and insect neuropeptide F (NPF) are conserved throughout Metazoa and intimately involved in a wide range of biological processes. In insects NPF is involved in regulating feeding, learning, stress and reproductive behavior. Here we identified and characterized an NPF receptor of the tsetse fly, Glossina morsitans morsitans, the sole transmitter of Trypanosoma parasites causing sleeping sickness. We isolated cDNA sequences encoding tsetse NPF (Glomo-NPF) and its receptor (Glomo-NPFR), and examined their spatial and temporal expression patterns using quantitative PCR. In tsetse flies, npfr transcripts are expressed throughout development and most abundantly in the central nervous system, whereas low expression is found in the flight muscles and posterior midgut. Expression of npf, by contrast, shows low transcript levels during development but is strongly expressed in the posterior midgut and brain of adult flies. Expression of Glomo-npf and its receptor in the brain and digestive system suggests that NPF may have conserved neuromodulatory or hormonal functions in tsetse flies, such as in the regulation of feeding behavior. Cell-based activity studies of the Glomo-NPFR showed that Glomo-NPF activates the receptor up to nanomolar concentrations. The molecular data of Glomo-NPF and Glomo-NPFR paves the way for further investigation of its functions in tsetse flies.
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Affiliation(s)
- Jelle Caers
- Functional Genomics and Proteomics, Department of Biology, KU Leuven, Leuven, Belgium.
| | - Matthias B Van Hiel
- Functional Genomics and Proteomics, Department of Biology, KU Leuven, Leuven, Belgium.
| | - Katleen Peymen
- Functional Genomics and Proteomics, Department of Biology, KU Leuven, Leuven, Belgium.
| | - Sven Zels
- Functional Genomics and Proteomics, Department of Biology, KU Leuven, Leuven, Belgium.
| | - Liesbeth Van Rompay
- Functional Genomics and Proteomics, Department of Biology, KU Leuven, Leuven, Belgium.
| | - Jan Van Den Abbeele
- Unit of Veterinary Protozoology, Department of Biomedical Sciences, Institute of Tropical Medicine, Antwerp, Belgium; Laboratory of Zoophysiology, Department of Physiology, University of Ghent, Krijgslaan 281, 9000 Ghent, Belgium.
| | - Liliane Schoofs
- Functional Genomics and Proteomics, Department of Biology, KU Leuven, Leuven, Belgium.
| | - Isabel Beets
- Functional Genomics and Proteomics, Department of Biology, KU Leuven, Leuven, Belgium.
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10
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Caers J, Peymen K, Van Hiel MB, Van Rompay L, Van Den Abbeele J, Schoofs L, Beets I. Molecular characterization of a short neuropeptide F signaling system in the tsetse fly, Glossina morsitans morsitans. Gen Comp Endocrinol 2016; 235:142-149. [PMID: 27288635 DOI: 10.1016/j.ygcen.2016.06.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Revised: 04/29/2016] [Accepted: 06/07/2016] [Indexed: 01/26/2023]
Abstract
Neuropeptides of the short neuropeptide F (sNPF) family are widespread among arthropods and found in every sequenced insect genome so far. Functional studies have mainly focused on the regulatory role of sNPF in feeding behavior, although this neuropeptide family has pleiotropic effects including in the control of locomotion, osmotic homeostasis, sleep, learning and memory. Here, we set out to characterize and determine possible roles of sNPF signaling in the haematophagous tsetse fly Glossina morsitans morsitans, a vector of African Trypanosoma parasites causing human and animal African trypanosomiasis. We cloned the G. m. morsitans cDNA sequences of an sNPF-like receptor (Glomo-sNPFR) and precursor protein encoding four Glomo-sNPF neuropeptides. All four Glomo-sNPF peptides concentration-dependently activated Glomo-sNPFR in a cell-based calcium mobilization assay, with EC50 values in the nanomolar range. Gene expression profiles in adult female tsetse flies indicate that the Glomo-sNPF system is mainly restricted to the nervous system. Glomo-snpfr transcripts were also detected in the hindgut of adult females. In contrast to the Drosophila sNPF system, tsetse larvae lack expression of Glomo-snpf and Glomo-snpfr genes. While Glomo-snpf transcript levels are upregulated in pupae, the onset of Glomo-snpfr expression is delayed to adulthood. Expression profiles in adult tissues are similar to those in other insects suggesting that the tsetse sNPF system may have similar functions such as a regulatory role in feeding behavior, together with a possible involvement of sNPFR signaling in osmotic homeostasis. Our molecular data will enable further investigations into the functions of sNPF signaling in tsetse flies.
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Affiliation(s)
- Jelle Caers
- Functional Genomics and Proteomics, Department of Biology, KU Leuven, Leuven, Belgium.
| | - Katleen Peymen
- Functional Genomics and Proteomics, Department of Biology, KU Leuven, Leuven, Belgium.
| | - Matthias B Van Hiel
- Functional Genomics and Proteomics, Department of Biology, KU Leuven, Leuven, Belgium.
| | - Liesbeth Van Rompay
- Functional Genomics and Proteomics, Department of Biology, KU Leuven, Leuven, Belgium.
| | - Jan Van Den Abbeele
- Unit of Veterinary Protozoology, Department of Biomedical Sciences, Institute of Tropical Medicine, Antwerp, Belgium; Laboratory of Zoophysiology, Department of Physiology, University of Ghent, Krijgslaan 281, 9000 Ghent, Belgium.
| | - Liliane Schoofs
- Functional Genomics and Proteomics, Department of Biology, KU Leuven, Leuven, Belgium.
| | - Isabel Beets
- Functional Genomics and Proteomics, Department of Biology, KU Leuven, Leuven, Belgium.
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11
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Caers J, Janssen T, Van Rompay L, Broeckx V, Van Den Abbeele J, Gäde G, Schoofs L, Beets I. Characterization and pharmacological analysis of two adipokinetic hormone receptor variants of the tsetse fly, Glossina morsitans morsitans. Insect Biochem Mol Biol 2016; 70:73-84. [PMID: 26690928 DOI: 10.1016/j.ibmb.2015.11.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [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: 07/29/2015] [Revised: 11/05/2015] [Accepted: 11/30/2015] [Indexed: 06/05/2023]
Abstract
Adipokinetic hormones (AKH) are well known regulators of energy metabolism in insects. These neuropeptides are produced in the corpora cardiaca and perform their hormonal function by interacting with specific G protein-coupled receptors (GPCRs) at the cell membranes of target tissues, mainly the fat body. Here, we investigated the sequences, spatial and temporal distributions, and pharmacology of AKH neuropeptides and receptors in the tsetse fly, Glossina morsitans morsitans. The open reading frames of two splice variants of the Glomo-akh receptor (Glomo-akhr) gene and of the AKH neuropeptide encoding genes, gmmhrth and gmmakh, were cloned. Both tsetse AKHR isoforms show strong sequence conservation when compared to other insect AKHRs. Glomo-AKH prepropeptides also have the typical architecture of AKH precursors. In an in vitro Ca(2+) mobilization assay, Glomo-AKH neuropeptides activated each receptor isoform up to nanomolar concentrations. We identified structural features of tsetse AKH neuropeptides essential for receptor activation in vitro. Gene expression profiles suggest a function for AKH signaling in regulating Glossina energy metabolism, where AKH peptides are released from the corpora cardiaca and activate receptors mainly expressed in the fat body. This analysis of the ligand-receptor coupling, expression, and pharmacology of the two Glomo-AKHR variants facilitates further elucidation of the function of AKH in G. m. morsitans.
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Affiliation(s)
- Jelle Caers
- Functional Genomics and Proteomics, Department of Biology, KU Leuven, Naamsestraat 59, 3000, Leuven, Belgium.
| | - Tom Janssen
- Functional Genomics and Proteomics, Department of Biology, KU Leuven, Naamsestraat 59, 3000, Leuven, Belgium.
| | - Liesbeth Van Rompay
- Functional Genomics and Proteomics, Department of Biology, KU Leuven, Naamsestraat 59, 3000, Leuven, Belgium.
| | - Valérie Broeckx
- Functional Genomics and Proteomics, Department of Biology, KU Leuven, Naamsestraat 59, 3000, Leuven, Belgium.
| | - Jan Van Den Abbeele
- Unit of Veterinary Protozoology, Department of Biomedical Sciences, Institute of Tropical Medicine, Nationalestraat 155, 2000, Antwerpen, Belgium; Laboratory of Zoophysiology, Department of Physiology, University of Ghent, Krijgslaan 281, 9000, Ghent, Belgium.
| | - Gerd Gäde
- Department of Biological Sciences, University of Cape Town, Private Bag, 7701, Rondebosch, South Africa.
| | - Liliane Schoofs
- Functional Genomics and Proteomics, Department of Biology, KU Leuven, Naamsestraat 59, 3000, Leuven, Belgium.
| | - Isabel Beets
- Functional Genomics and Proteomics, Department of Biology, KU Leuven, Naamsestraat 59, 3000, Leuven, Belgium.
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12
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Laubach J, Garderet L, Mahindra A, Gahrton G, Caers J, Sezer O, Voorhees P, Leleu X, Johnsen HE, Streetly M, Jurczyszyn A, Ludwig H, Mellqvist UH, Chng WJ, Pilarski L, Einsele H, Hou J, Turesson I, Zamagni E, Chim CS, Mazumder A, Westin J, Lu J, Reiman T, Kristinsson S, Joshua D, Roussel M, O'Gorman P, Terpos E, McCarthy P, Dimopoulos M, Moreau P, Orlowski RZ, Miguel JS, Anderson KC, Palumbo A, Kumar S, Rajkumar V, Durie B, Richardson PG. Management of relapsed multiple myeloma: recommendations of the International Myeloma Working Group. Leukemia 2015; 30:1005-17. [DOI: 10.1038/leu.2015.356] [Citation(s) in RCA: 175] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Revised: 09/11/2015] [Accepted: 09/24/2015] [Indexed: 11/09/2022]
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13
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Caers J, Boonen K, Van Den Abbeele J, Van Rompay L, Schoofs L, Van Hiel MB. Peptidomics of Neuropeptidergic Tissues of the Tsetse Fly Glossina morsitans morsitans. J Am Soc Mass Spectrom 2015; 26:2024-2038. [PMID: 26463237 DOI: 10.1007/s13361-015-1248-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [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: 03/27/2015] [Revised: 08/05/2015] [Accepted: 08/06/2015] [Indexed: 06/05/2023]
Abstract
Neuropeptides and peptide hormones are essential signaling molecules that regulate nearly all physiological processes. The recent release of the tsetse fly genome allowed the construction of a detailed in silico neuropeptide database (International Glossina Genome Consortium, Science 344, 380-386 (2014)), as well as an in-depth mass spectrometric analysis of the most important neuropeptidergic tissues of this medically and economically important insect species. Mass spectrometric confirmation of predicted peptides is a vital step in the functional characterization of neuropeptides, as in vivo peptides can be modified, cleaved, or even mispredicted. Using a nanoscale reversed phase liquid chromatography coupled to a Q Exactive Orbitrap mass spectrometer, we detected 51 putative bioactive neuropeptides encoded by 19 precursors: adipokinetic hormone (AKH) I and II, allatostatin A and B, capability/pyrokinin (capa/PK), corazonin, calcitonin-like diuretic hormone (CT/DH), FMRFamide, hugin, leucokinin, myosuppressin, natalisin, neuropeptide-like precursor (NPLP) 1, orcokinin, pigment dispersing factor (PDF), RYamide, SIFamide, short neuropeptide F (sNPF) and tachykinin. In addition, propeptides, truncated and spacer peptides derived from seven additional precursors were found, and include the precursors of allatostatin C, crustacean cardioactive peptide, corticotropin releasing factor-like diuretic hormone (CRF/DH), ecdysis triggering hormone (ETH), ion transport peptide (ITP), neuropeptide F, and proctolin, respectively. The majority of the identified neuropeptides are present in the central nervous system, with only a limited number of peptides in the corpora cardiaca-corpora allata and midgut. Owing to the large number of identified peptides, this study can be used as a reference for comparative studies in other insects. Graphical Abstract ᅟ.
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Affiliation(s)
- Jelle Caers
- Functional Genomics and Proteomics, Department of Biology, KU Leuven, 3000, Leuven, Belgium
| | - Kurt Boonen
- Functional Genomics and Proteomics, Department of Biology, KU Leuven, 3000, Leuven, Belgium
| | - Jan Van Den Abbeele
- Unit of Veterinary Protozoology, Department of Biomedical Sciences, Institute of Tropical Medicine, 2000, Antwerp, Belgium
- Laboratory of Zoophysiology, Department of Physiology, University of Ghent, 9000, Ghent, Belgium
| | - Liesbeth Van Rompay
- Functional Genomics and Proteomics, Department of Biology, KU Leuven, 3000, Leuven, Belgium
| | - Liliane Schoofs
- Functional Genomics and Proteomics, Department of Biology, KU Leuven, 3000, Leuven, Belgium.
| | - Matthias B Van Hiel
- Functional Genomics and Proteomics, Department of Biology, KU Leuven, 3000, Leuven, Belgium
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14
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Rompay LV, Borghgraef C, Beets I, Caers J, Temmerman L. New genetic regulators question relevance of abundant yolk protein production in C. elegans. Sci Rep 2015; 5:16381. [PMID: 26553710 PMCID: PMC4639837 DOI: 10.1038/srep16381] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Accepted: 09/24/2015] [Indexed: 11/25/2022] Open
Abstract
Vitellogenesis or maternal yolk formation is considered critical to the reproduction of egg-laying animals. In invertebrates, however, most of its regulatory genes are still unknown. Via a combined mapping and whole-genome sequencing strategy, we performed a forward genetic screen to isolate novel regulators of yolk production in the nematode model system Caenorhabditis elegans. In addition to isolating new alleles of rab-35, rab-10 and M04F3.2, we identified five mutant alleles corresponding to three novel regulatory genes potently suppressing the expression of a GFP-based yolk reporter. We confirmed that mutations in vrp-1, ceh-60 and lrp-2 disrupt endogenous yolk protein synthesis at the transcriptional and translational level. In contrast to current beliefs, our discovered set of mutants with strongly reduced yolk proteins did not show serious reproduction defects. This raises questions as to whether yolk proteins per se are needed for ultimate reproductive success.
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Affiliation(s)
- Liesbeth Van Rompay
- Functional Genomics and Proteomics, Department of Biology, KU Leuven, Naamsestraat 59 bus 2465, 3000 Leuven, Belgium
| | - Charline Borghgraef
- Functional Genomics and Proteomics, Department of Biology, KU Leuven, Naamsestraat 59 bus 2465, 3000 Leuven, Belgium
| | - Isabel Beets
- Functional Genomics and Proteomics, Department of Biology, KU Leuven, Naamsestraat 59 bus 2465, 3000 Leuven, Belgium
| | - Jelle Caers
- Functional Genomics and Proteomics, Department of Biology, KU Leuven, Naamsestraat 59 bus 2465, 3000 Leuven, Belgium
| | - Liesbet Temmerman
- Functional Genomics and Proteomics, Department of Biology, KU Leuven, Naamsestraat 59 bus 2465, 3000 Leuven, Belgium
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Caers J, Peymen K, Suetens N, Temmerman L, Janssen T, Schoofs L, Beets I. Characterization of G protein-coupled receptors by a fluorescence-based calcium mobilization assay. J Vis Exp 2014:e51516. [PMID: 25146596 PMCID: PMC4457351 DOI: 10.3791/51516] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [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] [Indexed: 11/28/2022] Open
Abstract
For more than 20 years, reverse pharmacology has been the preeminent strategy to discover the activating ligands of orphan G protein-coupled receptors (GPCRs). The onset of a reverse pharmacology assay is the cloning and subsequent transfection of a GPCR of interest in a cellular expression system. The heterologous expressed receptor is then challenged with a compound library of candidate ligands to identify the receptor-activating ligand(s). Receptor activation can be assessed by measuring changes in concentration of second messenger reporter molecules, like calcium or cAMP. The fluorescence-based calcium mobilization assay described here is a frequently used medium-throughput reverse pharmacology assay. The orphan GPCR is transiently expressed in human embryonic kidney 293T (HEK293T) cells and a promiscuous Gα16 construct is co-transfected. Following ligand binding, activation of the Gα16 subunit induces the release of calcium from the endoplasmic reticulum. Prior to ligand screening, the receptor-expressing cells are loaded with a fluorescent calcium indicator, Fluo-4 acetoxymethyl. The fluorescent signal of Fluo-4 is negligible in cells under resting conditions, but can be amplified more than a 100-fold upon the interaction with calcium ions that are released after receptor activation. The described technique does not require the time-consuming establishment of stably transfected cell lines in which the transfected genetic material is integrated into the host cell genome. Instead, a transient transfection, generating temporary expression of the target gene, is sufficient to perform the screening assay. The setup allows medium-throughput screening of hundreds of compounds. Co-transfection of the promiscuous Gα16, which couples to most GPCRs, allows the intracellular signaling pathway to be redirected towards the release of calcium, regardless of the native signaling pathway in endogenous settings. The HEK293T cells are easy to handle and have proven their efficacy throughout the years in receptor deorphanization assays. However, optimization of the assay for specific receptors may remain necessary.
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Caers J, Binsfeld M, Muller J, Heusschen R, Beguin Y. [Monoclonal gammopathies of undetermined significance - update for referring physicians]. Rev Med Liege 2014; 69 Spec No:41-46. [PMID: 25796797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Monoclonal gammopathies of undetermined significance (MGUS) are frequently diagnosed in the global population. Because of its possible transformation into a hematological malignancy, the identification of a MGUS requires a regular and generally long follow-up. However, this risk of transformation differs between the individuals and different laboratory criteria have been identified as predictive factors for progression and were combined in scoring systems that allow correct classification of individuals. The management of these patients needs to be adapted according to the calculated risk profile.
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De Pasqual A, Biessaux Y, Blettard N, Crémers S, Caers J. Unexplained cardiac failure leading to the identification of a Belgian family affected by hereditary amyloidosis. Acta Clin Belg 2013; 68:303-5. [PMID: 24455802 DOI: 10.2143/acb.3268] [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: 11/18/2022]
Abstract
We report the diagnosis of hereditary amyloidosis that affected a Belgian family that was initially diagnosed in a 73 year old woman. This patient was admitted with complaints of congestive heart failure. Cardiac work-up showed myocardial hypertrophy with zones of hyperintensity, suggestive for amyloidosis that was confirmed on a rectal biopsy. A hereditary form of amyloidosis was found by showing the Val30Met mutation within the transthyretin gene, that was also found in her asymptomatic son. This case shows that genetic testing is crucial in cases of unexplained amyloidosis and can help in the diagnosis and follow-up of patients and family members.
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Affiliation(s)
| | - Y Biessaux
- Department of Cardiology, CHU Liege, Belgium
| | - N Blettard
- Department of Pathology, CHU Liège, Belgium
| | - S Crémers
- Department of Pathology, CHU Liège, Belgium
| | - J Caers
- Department of Haematology, CHU Liège, Belgium
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Cornet G, Grayet D, Godon A, Caers J. [Image of the month: Hairy kidneys]. Rev Med Liege 2013; 68:4-5. [PMID: 23444820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Affiliation(s)
- G Cornet
- Service de Néphrologie Dialyse, CHPLT Verviers, Belgique.
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Fernández de Larrea C, Kyle RA, Durie BGM, Ludwig H, Usmani S, Vesole DH, Hajek R, San Miguel JF, Sezer O, Sonneveld P, Kumar SK, Mahindra A, Comenzo R, Palumbo A, Mazumber A, Anderson KC, Richardson PG, Badros AZ, Caers J, Cavo M, LeLeu X, Dimopoulos MA, Chim CS, Schots R, Noeul A, Fantl D, Mellqvist UH, Landgren O, Chanan-Khan A, Moreau P, Fonseca R, Merlini G, Lahuerta JJ, Bladé J, Orlowski RZ, Shah JJ. Plasma cell leukemia: consensus statement on diagnostic requirements, response criteria and treatment recommendations by the International Myeloma Working Group. Leukemia 2012; 27:780-91. [PMID: 23288300 DOI: 10.1038/leu.2012.336] [Citation(s) in RCA: 229] [Impact Index Per Article: 19.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Plasma cell leukemia (PCL) is a rare and aggressive variant of myeloma characterized by the presence of circulating plasma cells. It is classified as either primary PCL occurring at diagnosis or as secondary PCL in patients with relapsed/refractory myeloma. Primary PCL is a distinct clinic-pathological entity with different cytogenetic and molecular findings. The clinical course is aggressive with short remissions and survival duration. The diagnosis is based upon the percentage (≥ 20%) and absolute number (≥ 2 × 10(9)/l) of plasma cells in the peripheral blood. It is proposed that the thresholds for diagnosis be re-examined and consensus recommendations are made for diagnosis, as well as, response and progression criteria. Induction therapy needs to begin promptly and have high clinical activity leading to rapid disease control in an effort to minimize the risk of early death. Intensive chemotherapy regimens and bortezomib-based regimens are recommended followed by high-dose therapy with autologous stem cell transplantation if feasible. Allogeneic transplantation can be considered in younger patients. Prospective multicenter studies are required to provide revised definitions and better understanding of the pathogenesis of PCL.
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Affiliation(s)
- C Fernández de Larrea
- Amyloidosis and Myeloma Unit, Department of Hematology, IDIBAPS, Hospital Clinic de Barcelona, Barcelona, Spain.
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Caers J, Peeters L, Janssen T, De Haes W, Gäde G, Schoofs L. Structure-activity studies of Drosophila adipokinetic hormone (AKH) by a cellular expression system of dipteran AKH receptors. Gen Comp Endocrinol 2012; 177:332-7. [PMID: 22569168 DOI: 10.1016/j.ygcen.2012.04.025] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2012] [Revised: 04/18/2012] [Accepted: 04/23/2012] [Indexed: 11/19/2022]
Abstract
Structure-activity studies for the adipokinetic hormone receptor of insects were for the first time performed in a cellular expression system. A series of single amino acid replacement analogues for the endogenous adipokinetic hormone of Drosophila melanogaster (pGlu-Leu-Thr-Phe-Ser-Pro-Asp-Trp-NH(2)) were screened for activity with a bioluminescence cellular assay, expressing the G-protein coupled receptor. For this series of peptide analogues, one amino acid of the N-terminal tetrapeptide was successively replaced by alanine, while those of the C-terminal tetrapeptide were successively substituted by glycine; other modifications included the blocked N- and C-termini that were replaced by an acetylated alanine and a hydroxyl group, respectively. The analogue series was tested on the AKH receptors of two dipteran species, D. melanogaster and Anopheles gambiae. The blocked termini of the AKH peptide probably play a minor role in receptor interaction and activation, but are considered functionally important elements to protect the peptide against exopeptidases. In contrast, the amino acids at positions 2, 3, 4 and 5 from the N-terminus all seem to be crucial for receptor activation. This can be explained by the potential presence of a β-strand in this part of the peptide that interacts with the receptor. The inferred β-strand is probably followed by a β-turn in which the amino acids at positions 5-8 are involved. In this β-turn, the residues at positions 6 and 8 seem to be essential, as their substitutions induce only a very low degree of receptor activation. Replacement of Asp(7), by contrast, does not influence receptor activation at all. This implies that its side chain is folded inside the β-turn so that no interaction with the receptor occurs.
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Affiliation(s)
- Jelle Caers
- Research Group of Functional Genomics and Proteomics, KU Leuven, Naamsestraat 59, B-3000 Leuven, Belgium.
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Boerjan B, Cardoen D, Verdonck R, Caers J, Schoofs L. Insect omics research coming of age1This review is part of a virtual symposium on recent advances in understanding a variety of complex regulatory processes in insect physiology and endocrinology, including development, metabolism, cold hardiness, food intake and digestion, and diuresis, through the use of omics technologies in the postgenomic era. CAN J ZOOL 2012. [DOI: 10.1139/z2012-010] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
As more and more insect genomes are fully sequenced and annotated, omics technologies, including transcriptomic, proteomic, peptidomics, and metobolomic profiling, as well as bioinformatics, can be used to exploit this huge amount of sequence information for the study of different biological aspects of insect model organisms. Omics experiments are an elegant way to deliver candidate genes, the function of which can be further explored by genetic tools for functional inactivation or overexpression of the genes of interest. Such tools include mainly RNA interference and are currently being developed in diverse insect species. In this manuscript, we have reviewed how omics technologies were integrated and applied in insect biology.
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Affiliation(s)
- Bart Boerjan
- Research Group of Functional Genomics and Proteomics, KU Leuven, Naamsestraat 59, B-3000 Leuven, Belgium
| | - Dries Cardoen
- Research Group of Functional Genomics and Proteomics, KU Leuven, Naamsestraat 59, B-3000 Leuven, Belgium
- Laboratory of Entomology, KU Leuven, Naamsestraat 59, B-3000 Leuven, Belgium
| | - Rik Verdonck
- Research Group of Molecular Developmental Physiology and Signal Transduction, KU Leuven, Naamsestraat 59, B-3000 Leuven, Belgium
| | - Jelle Caers
- Research Group of Functional Genomics and Proteomics, KU Leuven, Naamsestraat 59, B-3000 Leuven, Belgium
| | - Liliane Schoofs
- Research Group of Functional Genomics and Proteomics, KU Leuven, Naamsestraat 59, B-3000 Leuven, Belgium
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Caers J, Verlinden H, Zels S, Vandersmissen HP, Vuerinckx K, Schoofs L. More than two decades of research on insect neuropeptide GPCRs: an overview. Front Endocrinol (Lausanne) 2012; 3:151. [PMID: 23226142 PMCID: PMC3510462 DOI: 10.3389/fendo.2012.00151] [Citation(s) in RCA: 121] [Impact Index Per Article: 10.1] [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] [Received: 10/01/2012] [Accepted: 11/14/2012] [Indexed: 11/30/2022] Open
Abstract
This review focuses on the state of the art on neuropeptide receptors in insects. Most of these receptors are G protein-coupled receptors (GPCRs) and are involved in the regulation of virtually all physiological processes during an insect's life. More than 20 years ago a milestone in invertebrate endocrinology was achieved with the characterization of the first insect neuropeptide receptor, i.e., the Drosophila tachykinin-like receptor. However, it took until the release of the Drosophila genome in 2000 that research on neuropeptide receptors boosted. In the last decade a plethora of genomic information of other insect species also became available, leading to a better insight in the functions and evolution of the neuropeptide signaling systems and their intracellular pathways. It became clear that some of these systems are conserved among all insect species, indicating that they fulfill crucial roles in their physiological processes. Meanwhile, other signaling systems seem to be lost in several insect orders or species, suggesting that their actions were superfluous in those insects, or that other neuropeptides have taken over their functions. It is striking that the deorphanization of neuropeptide GPCRs gets much attention, but the subsequent unraveling of the intracellular pathways they elicit, or their physiological functions are often hardly examined. Especially in insects besides Drosophila this information is scarce if not absent. And although great progress made in characterizing neuropeptide signaling systems, even in Drosophila several predicted neuropeptide receptors remain orphan, awaiting for their endogenous ligand to be determined. The present review gives a précis of the insect neuropeptide receptor research of the last two decades. But it has to be emphasized that the work done so far is only the tip of the iceberg and our comprehensive understanding of these important signaling systems will still increase substantially in the coming years.
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Affiliation(s)
| | | | | | | | | | - Liliane Schoofs
- *Correspondence: Liliane Schoofs, Department of Biology, Research Group of Functional Genomics and Proteomics, Naamsestraat 59, KU Leuven, 3000 Leuven, Belgium. e-mail:
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Caers J, Bonnet C, Graux C, De Prijck B, Beguin Y. [Current management of myelodysplastic syndromes]. Rev Med Suisse 2011; 7:1634-1643. [PMID: 21972730] [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] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Treatment of myelodysplastic syndromes (MDS) has improved in recent years with better results of allogeneic stem cell therapy (SCT), the advent of new therapeutic options such as hypomethylating agents and lenalidomide, the introduction of iron chelation therapy and the implication of erythropoietic stimulating agents in the treatment of anemia. In this review, we summarize the different diagnostic and prognostic criteria and outline the different treatment options we have in 2011.
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Affiliation(s)
- J Caers
- Service d'hématologie clinique, Département de médecine, CHU Sart-Tilman, Université de Liège, Belgique.
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Bonnet C, Caers J, De Prijck B, Hafraoui K, Beguin Y. [Mantle cell lymphoma: management in 2011]. Rev Med Suisse 2011; 7:1644-1649. [PMID: 21972731] [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] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Mantle cell lymphoma is a rare form of non Hodgkin lymphomas. Diagnosis is made by demonstrating a typical immunophenotype as well as the presence of a translocation between chromosomes 11 and 14 with overexpression of cyclin D1. First line therapy for young patients consists in 3 cycles of "R-CHOP21" alternated with 3 "R-DHAP21" and followed by an autograft conditioned by total body irradiation, cyclophosphamide and aracytine. For patients over 65 years of age, the treatment of choice consists in 8 cycles of "R-CHOP21". Maintenance treatment is under evaluation. Allografting is the only chance of cure in relapsed patients with good performance status. Targeted therapies will improve the prognosis of this disease.
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Affiliation(s)
- C Bonnet
- Service d'hématologie clinique, Département de médecine interne, CHU Sart-Tilman, Université de Liège, Belgique.
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Folguera G, Bastías DA, Caers J, Rojas JM, Piulachs MD, Bellés X, Bozinovic F. An experimental test of the role of environmental temperature variability on ectotherm molecular, physiological and life-history traits: Implications for global warming. Comp Biochem Physiol A Mol Integr Physiol 2011; 159:242-6. [DOI: 10.1016/j.cbpa.2011.03.002] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2011] [Revised: 03/08/2011] [Accepted: 03/08/2011] [Indexed: 11/28/2022]
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Schots R, Delforge M, André M, Bries G, Caers J, Demuynck H, De Prijck B, De Samblanx H, Kentos A, Meuleman N, Offner F, Vekemans MC, Vande Broek I, Van Droogenbroeck J, Van de Vanelde A, Wu KL, Doyen C. The Belgian 2010 consensus recommendations for the treatment of multiple myeloma. Acta Clin Belg 2010; 65:252-64. [PMID: 20954465 DOI: 10.1179/acb.2010.055] [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: 10/31/2022]
Abstract
Since the introduction of novel therapeutic agents including thalidomide, lenalidomide and bortezomib, the prognosis of multiple myeloma (MM) has significantly improved. These agents have been incorporated into numerous treatment schedules for newly diagnosed as well as more advanced MM patients. Hence, the therapeutic options for MM have become more complex and subject to rapid changes. The multiple myeloma study group (MMSG) of the Belgian Hematological Society has established recommendations for the treatment of MM as based on an extensive review of the literature which is also summarized in this paper. The recommendations are the result of a consensus opinion between haematologists with experience in the field and representing most haematology centres in Belgium. Where applicable, reimbursement criteria are also taken into account. The consensus recommendations should be a reference for use by clinical haematologists in daily practice.
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Caers J, Menu E, De Raeve H, Lepage D, Van Valckenborgh E, Van Camp B, Alvarez E, Vanderkerken K. Antitumour and antiangiogenic effects of Aplidin in the 5TMM syngeneic models of multiple myeloma. Br J Cancer 2008; 98:1966-74. [PMID: 18521088 PMCID: PMC2441967 DOI: 10.1038/sj.bjc.6604388] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [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] [Indexed: 01/03/2023] Open
Abstract
Aplidin® is an antitumour drug, currently undergoing phase II evaluation in different haematological and solid tumours. In this study, we analysed the antimyeloma effects of Aplidin in the syngeneic 5T33MM model, which is representable for the human disease. In vitro, Aplidin inhibited 5T33MMvv DNA synthesis with an IC50 of 3.87 nM. On cell-cycle progression, the drug induced an arrest in transition from G0/G1 to S phase, while Western blot showed a decreased cyclin D1 and CDK4 expression. Furthermore, Aplidin induced apoptosis by lowering the mitochondrial membrane potential, by inducing cytochrome c release and by activating caspase-9 and caspase-3. For the in vivo experiment, 5T33MM-injected C57Bl/KaLwRij mice were intraperitoneally treated with vehicle or Aplidin (90 μg kg−1 daily). Chronic treatment with Aplidin was well tolerated and reduced serum paraprotein concentration by 42% (P<0.001), while BM invasion with myeloma cells was decreased by 35% (P<0.001). Aplidin also reduced the myeloma-associated angiogenesis to basal values. This antiangiogenic effect was confirmed in vitro and explained by inhibition of endothelial cell proliferation and vessel formation. These data indicate that Aplidin is well tolerated in vivo and its antitumour and antiangiogenic effects support the use of the drug in multiple myeloma.
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Affiliation(s)
- J Caers
- Laboratory of Hematology and Immunology, Vrije Universiteit Brussel, Laarbeeklaan 103, Jette, Brussels 1090, Belgium
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Caers J, Deleu S, Belaid Z, De Raeve H, Van Valckenborgh E, De Bruyne E, Defresne MP, Van Riet I, Van Camp B, Vanderkerken K. Neighboring adipocytes participate in the bone marrow microenvironment of multiple myeloma cells. Leukemia 2007; 21:1580-4. [PMID: 17377589 DOI: 10.1038/sj.leu.2404658] [Citation(s) in RCA: 103] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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De Bruyne E, Andersen TL, De Raeve H, Van Valckenborgh E, Caers J, Van Camp B, Delaissé JM, Van Riet I, Vanderkerken K. Endothelial cell-driven regulation of CD9 or motility-related protein-1 expression in multiple myeloma cells within the murine 5T33MM model and myeloma patients. Leukemia 2006; 20:1870-9. [PMID: 16900214 DOI: 10.1038/sj.leu.2404343] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The cell surface expression of CD9, a glycoprotein of the tetraspanin family influencing several processes including cell motility and metastasis, inversely correlates with progression in several solid tumors. In the present work, we studied the expression and role of CD9 in multiple myeloma (MM) biology using the 5T33MM mouse model. The 5T33MMvitro cells were found to be CD9 negative. Injection of these cells in mice caused upregulation of CD9 expression, while reculturing them resulted in downregulation of CD9. Coculturing of CD9-negative 5T33MMvitro cells with BM endothelial cells (BMECs) resulted in a partial retrieval of CD9. Laser microdissection followed by real-time polymerase chain reaction and immunohistochemistry performed on bone sections of 5T33MMvivo diseased mice demonstrated strong local expression of CD9 on MM cells in contact with BMEC compared to MM cells further away. These findings were also confirmed by immunohistochemistry in MM patients. Neutralizing anti-CD9 antibodies inhibited transendothelial invasion of CD9-expressing human MM5.1 and murine 5T33MMvivo cells. In conclusion, we provide evidence that CD9 expression by the MM cells is upregulated in vivo by close interaction of the cells with BMEC and that CD9 is involved in transendothelial invasion, thus possibly mediating homing and/or spreading of the MM cells.
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Affiliation(s)
- E De Bruyne
- Department of Hematology and Immunology, Vrije Universiteit Brussel (VUB), Brussels, Belgium
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Caers J, Reekmans A, Jochmans K, Naegels S, Mana F, Urbain D, Reynaert H. Factor V inhibitor after injection of human thrombin (tissucol) into a bleeding peptic ulcer. Endoscopy 2003; 35:542-4. [PMID: 12783357 DOI: 10.1055/s-2003-39678] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
Endoscopic injection of fibrin glue into a bleeding peptic ulcer is an effective and safe treatment modality. The present report describes a patient who developed rectal bleeding from an arteriovenous malformation after endoscopic injection of fibrin glue containing human thrombin into a gastric ulcer. Additional laboratory investigations revealed the presence of an inhibitor against coagulation factor V, which resulted in severe coagulopathy, triggering the bleeding. Acquired factor V inhibitors have frequently been reported with the use of bovine thrombin, but to our knowledge, they have never been documented in patients exposed to human thrombin. Endoscopists should be aware of this rare, but potentially serious, complication.
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Affiliation(s)
- J Caers
- Department of Internal Medicine, University Hospital, Free University of Brussels, Laarbeeklaan 101, 1090 Brussels, Belgium
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Caers J, Fontaine C, Ponnet G, Velkeniers B, Lacor P. Use and complications of subcutaneous infusion ports. A retrospective study to identify risk factors. Eur J Cancer 2001. [DOI: 10.1016/s0959-8049(01)81470-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Van Sande M, Caers J, Lowenthal A. Cerebrospinal fluid amino acids in extrapyramidal disorders before and after L-DOPA treatment. Z Neurol 1971; 199:24-9. [PMID: 4102746 DOI: 10.1007/bf00316543] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Mardens Y, Caers J. [Ninhydrin-positive substances in the human central nervous system]. Acta Neurol Psychiatr Belg 1969; 69:336-7. [PMID: 4990888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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