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Augusto AM, Raposeira H, Horta P, Mata VA, Aizpurua O, Alberdi A, Jones G, Razgour O, Santos SAP, Russo D, Rebelo H. Bat diversity boosts ecosystem services: Evidence from pine processionary moth predation. Sci Total Environ 2024; 912:169387. [PMID: 38110100 DOI: 10.1016/j.scitotenv.2023.169387] [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] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 12/12/2023] [Accepted: 12/12/2023] [Indexed: 12/20/2023]
Abstract
Coniferous forests contribute to the European economy; however, they have experienced a decline since the late 1990s due to an invasive pest known as the pine processionary moth, Thaumetopoea pityocampa. The impacts of this pest are increasingly exacerbated by climate change. Traditional control strategies involving pesticides have had negative effects on public health and the environment. Instead, forest managers seek a more ecological and sustainable approach to management that promotes the natural actions of pest control agents. This study aims to evaluate the role of bats in suppressing pine processionary moths in pine forests and examine how the bat community composition and abundance influence pest consumption. Bats were sampled in the mountainous environment of the Serra da Estrela in central Portugal to collect faecal samples for DNA meta-barcoding analysis. We assessed the relationship between a) bat richness, b) bat relative abundance, c) bat diet richness, and the frequency of pine processionary moth consumption. Our findings indicate that sites with the highest bat species richness and abundance exhibit the highest levels of pine processionary moth consumption. The intensity of pine processionary moth consumption is independent of insect diversity within the site. The highest occurrence of pine processionary moth presence in bat diets is primarily observed in species that forage in cluttered habitats. A typical predator of pine processionary moths among bats is likely to be a forest-dwelling species that specialises in consuming Lepidoptera. These species primarily use short-range echolocation calls, which are relatively inaudible to tympanate moths, suitable for locating prey in cluttered environments, employing a gleaning hunting strategy. Examples include species from the genera Plecotus, Myotis, and Rhinolophus. This study enhances our understanding of the potential pest consumption services provided by bats in pine forests. The insights gained from this research can inform integrated pest management practices in forestry.
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Affiliation(s)
- A M Augusto
- ICS, Instituto de Ciências Sociais, Universidade de Lisboa, Av. Professor Aníbal de Bettencourt, 9, 1600-189 Lisboa, Portugal.
| | - H Raposeira
- CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Campus de Vairão, 4485-661 Vairão, Portugal; BIOPOLIS Program in Genomics, Biodiversity and Land Planning, CIBIO, Campus de Vairão, 4485-661 Vairão, Portugal; Departamento de Biologia, Faculdade de Ciências, Universidade do Porto, Porto 4099-002, Portugal
| | - P Horta
- CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Campus de Vairão, 4485-661 Vairão, Portugal; BIOPOLIS Program in Genomics, Biodiversity and Land Planning, CIBIO, Campus de Vairão, 4485-661 Vairão, Portugal; Departamento de Biologia, Faculdade de Ciências, Universidade do Porto, Porto 4099-002, Portugal
| | - V A Mata
- CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Campus de Vairão, 4485-661 Vairão, Portugal; BIOPOLIS Program in Genomics, Biodiversity and Land Planning, CIBIO, Campus de Vairão, 4485-661 Vairão, Portugal
| | - O Aizpurua
- Globe Institute, University of Copenhagen, 1350 Copenhagen, Denmark
| | - A Alberdi
- Globe Institute, University of Copenhagen, 1350 Copenhagen, Denmark
| | - G Jones
- School of Biological Sciences, University of Bristol, 24 Tyndall Avenue, Bristol BS8 1TQ, UK
| | - O Razgour
- Biosciences, University of Exeter, Hatherly Laboratories, Prince of Wales Road, Exeter EX4 4PS, UK
| | - S A P Santos
- Instituto Politécnico de Setúbal, ESTBarreiro, Rua Américo da Silva Marinho, 2839-001 Lavradio, Portugal; LEAF-Linking Landscape, Environment, Agriculture and Food Research Center, Associate Laboratory TERRA, Instituto Superior de Agronomia, Universidade de Lisboa, Tapada da Ajuda, 1349-017 Lisboa, Portugal
| | - D Russo
- Laboratory of Animal Ecology and Evolution (AnEcoEvo), Dipartimento di Agraria, Università degli Studi di Napoli Federico II, via Università 100, I-80055 Portici, Napoli, Italy
| | - H Rebelo
- CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Campus de Vairão, 4485-661 Vairão, Portugal; BIOPOLIS Program in Genomics, Biodiversity and Land Planning, CIBIO, Campus de Vairão, 4485-661 Vairão, Portugal; Instituto Politécnico de Setúbal, ESS, Campus da Estefanilha, Setúbal, Portugal; NBI, Natural Business Intelligence, Régia Douro Park, 5000-033 Andrães, Vila Real, Portugal
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Palombo R, Passacantilli I, Terracciano F, Capone A, Matteocci A, Tournier S, Alberdi A, Chiurchiù V, Volpe E, Paronetto MP. Inhibition of the PI3K/AKT/mTOR signaling promotes an M1 macrophage switch by repressing the ATF3-CXCL8 axis in Ewing sarcoma. Cancer Lett 2023; 555:216042. [PMID: 36565919 DOI: 10.1016/j.canlet.2022.216042] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 12/08/2022] [Accepted: 12/18/2022] [Indexed: 12/24/2022]
Abstract
Ewing sarcomas are aggressive pediatric tumors of bone and soft tissues driven by in frame chromosomal translocations that yield fusion proteins guiding the oncogenic program. Promising alternative strategies to ameliorate current treatments involve inhibition of the PI3K/AKT/mTOR pathway. In this study, we identified the activating transcription factor 3 (ATF3) as an important mediator of the PI3K/AKT/mTOR pathway in Ewing sarcoma cells. ATF3 exerted its pro-tumoral activity through modulation of several chemokine-encoding genes, including CXCL8. The product of CXCL8, IL-8, acts as a pro-inflammatory chemokine critical for cancer progression and metastasis. We found that ATF3/IL-8 axis impacts macrophages populating the surrounding tumor microenvironment by promoting the M2 phenotype. Our study reveals valuable information on the PI3K/AKT/mTOR derived chemokine signaling in Ewing sarcoma cells: by promoting ATF3 and CXCL8 downregulation, inhibition of the PI3K/AKT/mTOR signaling promotes a proinflammatory response leading to upregulation of the protective anti-tumoral M1 macrophages.
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Affiliation(s)
- Ramona Palombo
- Laboratories of Molecular and Cellular Neurobiology, Molecular Neuroimmunology, and Resolution of Neuroinflammation, IRCCS Fondazione Santa Lucia, Via del Fosso di Fiorano, 64, 00143, Rome, Italy; University of Rome "Foro Italico", Piazza Lauro de Bosis 6, 00135, Rome, Italy
| | - Ilaria Passacantilli
- Laboratories of Molecular and Cellular Neurobiology, Molecular Neuroimmunology, and Resolution of Neuroinflammation, IRCCS Fondazione Santa Lucia, Via del Fosso di Fiorano, 64, 00143, Rome, Italy
| | - Francesca Terracciano
- Laboratories of Molecular and Cellular Neurobiology, Molecular Neuroimmunology, and Resolution of Neuroinflammation, IRCCS Fondazione Santa Lucia, Via del Fosso di Fiorano, 64, 00143, Rome, Italy
| | - Alessia Capone
- Laboratories of Molecular and Cellular Neurobiology, Molecular Neuroimmunology, and Resolution of Neuroinflammation, IRCCS Fondazione Santa Lucia, Via del Fosso di Fiorano, 64, 00143, Rome, Italy
| | - Alessandro Matteocci
- Laboratories of Molecular and Cellular Neurobiology, Molecular Neuroimmunology, and Resolution of Neuroinflammation, IRCCS Fondazione Santa Lucia, Via del Fosso di Fiorano, 64, 00143, Rome, Italy
| | - Simon Tournier
- Plateforme Technologique IRSL UMS Saint-Louis US53 / UAR2030, Institut de Recherche Saint Louis, Université Paris Cité, France
| | - Antonio Alberdi
- Plateforme Technologique IRSL UMS Saint-Louis US53 / UAR2030, Institut de Recherche Saint Louis, Université Paris Cité, France
| | - Valerio Chiurchiù
- Laboratories of Molecular and Cellular Neurobiology, Molecular Neuroimmunology, and Resolution of Neuroinflammation, IRCCS Fondazione Santa Lucia, Via del Fosso di Fiorano, 64, 00143, Rome, Italy; Institute of Translational Pharmacology, CNR, Via del Fosso del Cavaliere, 100, 00133, Rome, Italy
| | - Elisabetta Volpe
- Laboratories of Molecular and Cellular Neurobiology, Molecular Neuroimmunology, and Resolution of Neuroinflammation, IRCCS Fondazione Santa Lucia, Via del Fosso di Fiorano, 64, 00143, Rome, Italy
| | - Maria Paola Paronetto
- Laboratories of Molecular and Cellular Neurobiology, Molecular Neuroimmunology, and Resolution of Neuroinflammation, IRCCS Fondazione Santa Lucia, Via del Fosso di Fiorano, 64, 00143, Rome, Italy; University of Rome "Foro Italico", Piazza Lauro de Bosis 6, 00135, Rome, Italy.
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Grolleau C, Calugareanu A, Demouche S, Nosbaum A, Staumont-Sallé D, Aubert H, Cassius C, Jachiet M, Saussine A, Bagot M, Bachelez H, Battistella M, Hotz C, Du Thanh A, Crépy MN, Bergerat D, Merandet M, Onifarasoaniaina R, Alberdi A, How-Kit A, Bouaziz JD, Le-Buanec H. IL-4/IL-13 Inhibitors for Atopic Dermatitis Induce Psoriatic Rash Transcriptionally Close to Pustular Psoriasis. J Invest Dermatol 2023; 143:711-721.e7. [PMID: 36610660 DOI: 10.1016/j.jid.2022.10.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 10/14/2022] [Accepted: 10/18/2022] [Indexed: 01/07/2023]
Abstract
Dupilumab is a therapeutic antibody targeting IL-4 and IL-13 receptor subunit alpha used for the treatment of patients with atopic dermatitis (AD). Cases of psoriasis-like reactions induced under dupilumab treatment (dupilumab-induced psoriatic eruption [DI-Pso]) for AD were recently reported. To understand the pathogenesis of DI-Pso, we performed gene expression profiling studies on skin biopsies of DI-Pso (n = 7) compared with those of plaque psoriasis, AD, and healthy controls (n = 4 each). Differential gene expression was performed using enrichment and Gene Ontology analysis. Gene expression was validated by qPCR, and protein levels were assessed by immunohistochemistry. Transcriptomic and protein analysis of DI-Pso compared with that of healthy controls, plaque psoriasis, and AD skins revealed activation of T helper 17/IL-23 pathways associated with a significant expression of IL-36, surrogate marker of pustular psoriasis. By contrast, T helper 2 representative genes' expression was strongly decreased in DI-Pso across comparison. Matching analysis with public data of pustular psoriasis skin corroborated that DI-Pso and pustular psoriasis upstream regulators overlap, greater than the overlap with plaque psoriasis. Furthermore, DI-Pso showed strongly decreased expression of many barrier skin genes compared with healthy controls, plaque psoriasis, and AD. Our data indicate that the pathogenesis of DI-Pso relied on a shift of skin immune responses from a T helper 2 to an IL-36 and T helper 17 polarization and on intensified skin barrier alterations.
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Affiliation(s)
- Chloé Grolleau
- Dermatology Department, Saint Louis Hospital, Paris, France; Saint-Louis Research Institute, INSERM U976 - HIPI Unit, University of Paris, Paris, France
| | - Andreea Calugareanu
- Saint-Louis Research Institute, INSERM U976 - HIPI Unit, University of Paris, Paris, France; Dermatology Department, University Hospital of Lyon, Lyon, France
| | - Sarah Demouche
- Dermatology Department, Saint Louis Hospital, Paris, France; Saint-Louis Research Institute, INSERM U976 - HIPI Unit, University of Paris, Paris, France
| | - Audrey Nosbaum
- Dermatology Department, University Hospital of Lyon, Lyon, France
| | - Delphine Staumont-Sallé
- Dermatology Department, U1286 Inserm Lille Inflammation Translational Research Institute, University of Lille, Lille, France
| | - Hélène Aubert
- Dermatology Department, University Hospital of Nantes, Nantes, France
| | - Charles Cassius
- Dermatology Department, Saint Louis Hospital, Paris, France; Saint-Louis Research Institute, INSERM U976 - HIPI Unit, University of Paris, Paris, France
| | - Marie Jachiet
- Dermatology Department, Saint Louis Hospital, Paris, France
| | - Anne Saussine
- Dermatology Department, Saint Louis Hospital, Paris, France
| | - Martine Bagot
- Dermatology Department, Saint Louis Hospital, Paris, France
| | - Hervé Bachelez
- Dermatology Department, Saint Louis Hospital, Paris, France; Laboratory of Genetic of Skin Diseases, INSERM U1163, Imagine Institute, University of Paris, Paris, France
| | | | - Claire Hotz
- Dermatology Department, Henri Mondor Hospital, Créteil, France
| | - Aurélie Du Thanh
- Dermatology Department, University Hospital of Montpellier, Montpellier, France
| | - Marie-Noëlle Crépy
- Dermatology Department, Paris University Hospital of Cochin, Paris, France
| | - David Bergerat
- Saint-Louis Research Institute, INSERM U976 - HIPI Unit, University of Paris, Paris, France
| | - Marine Merandet
- Saint-Louis Research Institute, INSERM U976 - HIPI Unit, University of Paris, Paris, France
| | | | - Antonio Alberdi
- Technological Platerform of Saint- Louis Research Institute (IRSL), Saint-Louis Hospital, University of Paris, Paris, France
| | - Alexandre How-Kit
- Laboratory of Genomics, Foundation Jean Dausset (CEPH), Paris, France
| | - Jean-David Bouaziz
- Dermatology Department, Saint Louis Hospital, Paris, France; Saint-Louis Research Institute, INSERM U976 - HIPI Unit, University of Paris, Paris, France.
| | - Hélène Le-Buanec
- Saint-Louis Research Institute, INSERM U976 - HIPI Unit, University of Paris, Paris, France
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Pezzana C, Cras A, Simelière F, Guesdon R, Desgres M, Correa BL, Peuffier A, Bellamy V, Gouarderes S, Alberdi A, Perier MC, Pidial L, Agnely F, Bochot A, Hagège A, Silvestre JS, Menasché P. Biomaterial-embedded extracellular vesicles improve recovery of the dysfunctional myocardium. Biomaterials 2022; 291:121877. [DOI: 10.1016/j.biomaterials.2022.121877] [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: 07/12/2022] [Revised: 10/13/2022] [Accepted: 10/23/2022] [Indexed: 11/06/2022]
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Fromentin M, Bridier-Nahmias A, Legoff J, Mercier-Delarue S, Ranger N, Vuillard C, Do Vale J, Zucman N, Alberdi A, Ricard JD, Roux D. The 16S rRNA lung microbiome in mechanically ventilated patients: a methodological study. Exp Lung Res 2021; 48:23-34. [PMID: 34963427 DOI: 10.1080/01902148.2021.2021327] [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] [Indexed: 10/19/2022]
Abstract
PURPOSE Characterization of the respiratory tract bacterial microbiome is in its infancy when compared to the gut microbiota. To limit bias mandates a robust methodology. Specific amplification of the hypervariable (V) region of the 16SrRNA gene is a crucial step. Differences in accuracy exist for one V region to another depending on the sampled environment. We aimed to assess the impact of the primer sequences targeting the V4 region currently used for gut microbiota studies in respiratory samples. Materials and methods: The original 515 F-806R primer pair targets the V4 region of the 16SrRNA gene. We compared two different 515 F-806R primer pairs before Illumina 250 paired-end sequencing for bacterial microbiome analyses of respiratory samples from critically-ill ventilated patients. "S-V4" for "Stringent V4" primer pair is used in two ongoing international projects "the Integrative Human microbiome project (iHMP)" and "the Earth microbiome project (EMP)." "R-V4" for "Relaxed V4" primer pair has been modified to reduce biases against specific environmental taxa. The optimal method was determined by concordance with conventional microbiology. Results: Twenty samples from three patients who developed a ventilator-associated pneumonia (VAP) and four who did not (control ventilated patients) were sequenced. Highly different results were obtained. "S-V4" provided the best agreement with the conventional microbiology for endotracheal aspirate: 89% as compared to 56% for "R-V4." The main difference related to poor Enterobacteriaceae detection with "R-V4" primers. Conclusions: Accuracy of the bacterial lung microbiome composition was highly dependent on the primers used for amplification of the 16 s rRNA hypervariable sequence. This work validates for future lung microbiome studies the use of the 515 F-806R "S-V4" primer pair associated to Illumina® MiSeq paired-end sequencing.
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Affiliation(s)
- Melanie Fromentin
- AP-HP, Hôpital Cochin, service d'anesthésie réanimation, Paris, France.,INSERM UMR 1137, IAME, Infection Antimicrobials Modelling Evolution, Université de Paris, Paris, France
| | - Antoine Bridier-Nahmias
- INSERM UMR 1137, IAME, Infection Antimicrobials Modelling Evolution, Université de Paris, Paris, France
| | - Jérôme Legoff
- INSERM, U 976, HIPI Human Immunology, Pathophysiology & Immunotherapy, Université de Paris, Paris, France
| | - Severine Mercier-Delarue
- INSERM, U 976, HIPI Human Immunology, Pathophysiology & Immunotherapy, Université de Paris, Paris, France
| | - Noémie Ranger
- INSERM, U 976, HIPI Human Immunology, Pathophysiology & Immunotherapy, Université de Paris, Paris, France
| | - Constance Vuillard
- INSERM UMR 1137, IAME, Infection Antimicrobials Modelling Evolution, Université de Paris, Paris, France.,AP-HP, Hôpital Louis Mourier, DMU ESPRIT, Médecine Intensive Réanimation, Colombes, France
| | - Julien Do Vale
- INSERM UMR 1137, IAME, Infection Antimicrobials Modelling Evolution, Université de Paris, Paris, France
| | - Noémie Zucman
- INSERM UMR 1137, IAME, Infection Antimicrobials Modelling Evolution, Université de Paris, Paris, France.,AP-HP, Hôpital Louis Mourier, DMU ESPRIT, Médecine Intensive Réanimation, Colombes, France
| | - Antonio Alberdi
- Plateforme Technologique de l'Institut de Recherche Saint Louis (IRSL) Hématologie, Immunologie, Oncologie, Université de Paris, Paris, France
| | - Jean-Damien Ricard
- INSERM UMR 1137, IAME, Infection Antimicrobials Modelling Evolution, Université de Paris, Paris, France.,AP-HP, Hôpital Louis Mourier, DMU ESPRIT, Médecine Intensive Réanimation, Colombes, France
| | - Damien Roux
- INSERM UMR 1137, IAME, Infection Antimicrobials Modelling Evolution, Université de Paris, Paris, France.,AP-HP, Hôpital Louis Mourier, DMU ESPRIT, Médecine Intensive Réanimation, Colombes, France
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Lima Correa B, El Harane N, Desgres M, Perotto M, Alayrac P, Guillas C, Pidial L, Bellamy V, Baron E, Autret G, Kamaleswaran K, Pezzana C, Perier MC, Vilar J, Alberdi A, Brisson A, Renault N, Gnecchi M, Silvestre JS, Menasché P. Extracellular vesicles fail to trigger the generation of new cardiomyocytes in chronically infarcted hearts. Am J Cancer Res 2021; 11:10114-10124. [PMID: 34815807 PMCID: PMC8581432 DOI: 10.7150/thno.62304] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Accepted: 10/02/2021] [Indexed: 12/11/2022] Open
Abstract
Background: Extracellular vesicles (EV) mediate the therapeutic effects of stem cells but it is unclear whether this involves cardiac regeneration mediated by endogenous cardiomyocyte proliferation. Methods: Bi-transgenic MerCreMer/ZEG (n = 15/group) and Mosaic Analysis With Double Markers (MADM; n = 6/group) mouse models underwent permanent coronary artery ligation and received, 3 weeks later, 10 billion EV (from human iPS-derived cardiovascular progenitor cells [CPC]), or saline, injected percutaneously under echo guidance in the peri-infarcted myocardium. Endogenous cardiomyocyte proliferation was tracked by EdU labeling and biphoton microscopy. Other end points, including cardiac function (echocardiography and MRI), histology and transcriptomics were blindly assessed 4-6 weeks after injections. Results: There was no proliferation of cardiomyocytes in either transgenic mouse strains. Nevertheless, EV improved cardiac function in both models. In MerCreMer/ZEG mice, LVEF increased by 18.3 ± 0.2% between baseline and the end-study time point in EV-treated hearts which contrasted with a decrease by 2.3 ± 0.2% in the PBS group; MADM mice featured a similar pattern as intra-myocardial administration of EV improved LVEF by 13.3 ± 0.16% from baseline whereas it decreased by 14.4 ± 0.16% in the control PBS-injected group. This functional improvement was confirmed by MRI and associated with a reduction in infarct size, the decreased expression of several pro-fibrotic genes and an overexpression of the anti-fibrotic miRNA 133-a1 compared to controls. Experiments with an anti-miR133-a demonstrated that the cardio-reparative effects of EV were partly abrogated. Conclusions: EV-CPC do not trigger cardiomyocyte proliferation but still improve cardiac function by other mechanisms which may include the regulation of fibrosis.
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Correa BL, El Harane N, Perotto M, Desgres M, Pidial L, Bellamy V, Tence N, Baron E, Autret G, Guillas C, Kamaleswaran K, Vilar J, Alberdi A, Renault N, Gnecchi M, Silvestre J, Menasché P. How do Extracellular Vesicles Protect the Ischemic Myocardium? Cytotherapy 2020. [DOI: 10.1016/j.jcyt.2020.04.045] [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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Mattila S, Pérez-Torres M, Efstathiou A, Mimica P, Fraser M, Kankare E, Alberdi A, Aloy MÁ, Heikkilä T, Jonker PG, Lundqvist P, Martí-Vidal I, Meikle WPS, Romero-Cañizales C, Smartt SJ, Tsygankov S, Varenius E, Alonso-Herrero A, Bondi M, Fransson C, Herrero-Illana R, Kangas T, Kotak R, Ramírez-Olivencia N, Väisänen P, Beswick RJ, Clements DL, Greimel R, Harmanen J, Kotilainen J, Nandra K, Reynolds T, Ryder S, Walton NA, Wiik K, Östlin G. A dust-enshrouded tidal disruption event with a resolved radio jet in a galaxy merger. Science 2018; 361:482-485. [PMID: 29903886 DOI: 10.1126/science.aao4669] [Citation(s) in RCA: 78] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Accepted: 06/01/2018] [Indexed: 11/02/2022]
Abstract
Tidal disruption events (TDEs) are transient flares produced when a star is ripped apart by the gravitational field of a supermassive black hole (SMBH). We have observed a transient source in the western nucleus of the merging galaxy pair Arp 299 that radiated >1.5 × 1052 erg at infrared and radio wavelengths but was not luminous at optical or x-ray wavelengths. We interpret this as a TDE with much of its emission reradiated at infrared wavelengths by dust. Efficient reprocessing by dense gas and dust may explain the difference between theoretical predictions and observed luminosities of TDEs. The radio observations resolve an expanding and decelerating jet, probing the jet formation and evolution around a SMBH.
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Affiliation(s)
- S Mattila
- Tuorla Observatory, Department of Physics and Astronomy, FI-20014 University of Turku, Finland. .,Finnish Centre for Astronomy with ESO (FINCA), FI-20014 University of Turku, Finland
| | - M Pérez-Torres
- Instituto de Astrofísica de Andalucía-Consejo Superior de Investigaciones Científicas (CSIC), P.O. Box 3004, 18008, Granada, Spain. .,Departamento de Física Teórica, Facultad de Ciencias, Universidad de Zaragoza, 50019, Zaragoza, Spain
| | - A Efstathiou
- School of Sciences, European University Cyprus, Diogenes Street, Engomi, 1516 Nicosia, Cyprus
| | - P Mimica
- Departament d'Astronomia i Astrofisica, Universitat de València Estudi General, 46100 Burjassot, València, Spain
| | - M Fraser
- School of Physics, O'Brien Centre for Science North, University College Dublin, Belfield, Dublin 4, Ireland.,Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UK
| | - E Kankare
- Astrophysics Research Centre, School of Mathematics and Physics, Queen's University Belfast, Belfast BT7 1NN, UK
| | - A Alberdi
- Instituto de Astrofísica de Andalucía-Consejo Superior de Investigaciones Científicas (CSIC), P.O. Box 3004, 18008, Granada, Spain
| | - M Á Aloy
- Departament d'Astronomia i Astrofisica, Universitat de València Estudi General, 46100 Burjassot, València, Spain
| | - T Heikkilä
- Tuorla Observatory, Department of Physics and Astronomy, FI-20014 University of Turku, Finland
| | - P G Jonker
- SRON, Netherlands Institute for Space Research, Sorbonnelaan 2, NL-3584 CA Utrecht, Netherlands.,Department of Astrophysics/Institute for Mathematics, Astrophysics and Particle Physics, Radboud University, P.O. Box 9010, 6500GL Nijmegen, Netherlands
| | - P Lundqvist
- Department of Astronomy and The Oskar Klein Centre, AlbaNova University Center, Stockholm University, SE-106 91 Stockholm, Sweden
| | - I Martí-Vidal
- Department of Space, Earth and Environment, Chalmers University of Technology, Onsala Space Observatory, SE-439 92 Onsala, Sweden
| | - W P S Meikle
- Astrophysics Group, Blackett Laboratory, Imperial College London, Prince Consort Road, London SW7 2AZ, UK
| | - C Romero-Cañizales
- Chinese Academy of Sciences South America Center for Astronomy, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China.,Núcleo de Astronomía de la Facultad de Ingeniería y Ciencias, Universidad Diego Portales, Av. Ejército 441, 8370191 Santiago, Chile
| | - S J Smartt
- Astrophysics Research Centre, School of Mathematics and Physics, Queen's University Belfast, Belfast BT7 1NN, UK
| | - S Tsygankov
- Tuorla Observatory, Department of Physics and Astronomy, FI-20014 University of Turku, Finland
| | - E Varenius
- Department of Space, Earth and Environment, Chalmers University of Technology, Onsala Space Observatory, SE-439 92 Onsala, Sweden.,Jodrell Bank Centre for Astrophysics, The University of Manchester, Oxford Road, Manchester M13 9PL, UK
| | - A Alonso-Herrero
- Centro de Astrobiología (CSIC-INTA), ESAC Campus, E-28692 Villanueva de la Cañada, Madrid, Spain
| | - M Bondi
- Istituto di Radioastronomia - Istituto Nazionale di Astrofisica (INAF), Bologna, via P. Gobetti 101, 40129, Bologna, Italy
| | - C Fransson
- Department of Astronomy and The Oskar Klein Centre, AlbaNova University Center, Stockholm University, SE-106 91 Stockholm, Sweden
| | - R Herrero-Illana
- European Southern Observatory, Alonso de Córdova 3107, Vitacura, Casilla 19001, Santiago de Chile, Chile
| | - T Kangas
- Tuorla Observatory, Department of Physics and Astronomy, FI-20014 University of Turku, Finland.,Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, USA
| | - R Kotak
- Tuorla Observatory, Department of Physics and Astronomy, FI-20014 University of Turku, Finland.,Astrophysics Research Centre, School of Mathematics and Physics, Queen's University Belfast, Belfast BT7 1NN, UK
| | - N Ramírez-Olivencia
- Instituto de Astrofísica de Andalucía-Consejo Superior de Investigaciones Científicas (CSIC), P.O. Box 3004, 18008, Granada, Spain
| | - P Väisänen
- South African Astronomical Observatory, P.O. Box 9, Observatory 7935, Cape Town, South Africa.,Southern African Large Telescope, P.O. Box 9, Observatory 7935, Cape Town, South Africa
| | - R J Beswick
- Jodrell Bank Centre for Astrophysics, The University of Manchester, Oxford Road, Manchester M13 9PL, UK
| | - D L Clements
- Astrophysics Group, Blackett Laboratory, Imperial College London, Prince Consort Road, London SW7 2AZ, UK
| | - R Greimel
- Institute of Physics, Department for Geophysics, Astrophysics, and Meteorology, NAWI Graz, Universitätsplatz 5, 8010 Graz, Austria
| | - J Harmanen
- Tuorla Observatory, Department of Physics and Astronomy, FI-20014 University of Turku, Finland
| | - J Kotilainen
- Finnish Centre for Astronomy with ESO (FINCA), FI-20014 University of Turku, Finland.,Tuorla Observatory, Department of Physics and Astronomy, FI-20014 University of Turku, Finland
| | - K Nandra
- Max-Planck-Institut für Extraterrestrische Physik, Giessenbachstraße, 85748, Garching, Germany
| | - T Reynolds
- Tuorla Observatory, Department of Physics and Astronomy, FI-20014 University of Turku, Finland
| | - S Ryder
- Australian Astronomical Observatory, 105 Delhi Rd, North Ryde, NSW 2113, Australia
| | - N A Walton
- Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UK
| | - K Wiik
- Tuorla Observatory, Department of Physics and Astronomy, FI-20014 University of Turku, Finland
| | - G Östlin
- Department of Astronomy and The Oskar Klein Centre, AlbaNova University Center, Stockholm University, SE-106 91 Stockholm, Sweden
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9
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Nibourel O, Guihard S, Roumier C, Pottier N, Terre C, Paquet A, Peyrouze P, Geffroy S, Quentin S, Alberdi A, Abdelali RB, Renneville A, Demay C, Celli-Lebras K, Barbry P, Quesnel B, Castaigne S, Dombret H, Soulier J, Preudhomme C, Cheok MH. Copy-number analysis identified new prognostic marker in acute myeloid leukemia. Leukemia 2016; 31:555-564. [PMID: 27686867 DOI: 10.1038/leu.2016.265] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Revised: 08/18/2016] [Accepted: 08/24/2016] [Indexed: 01/08/2023]
Abstract
Recent advances in genomic technologies have revolutionized acute myeloid leukemia (AML) understanding by identifying potential novel actionable genomic alterations. Consequently, current risk stratification at diagnosis not only relies on cytogenetics, but also on the inclusion of several of these abnormalities. Despite this progress, AML remains a heterogeneous and complex malignancy with variable response to current therapy. Although copy-number alterations (CNAs) are accepted prognostic markers in cancers, large-scale genomic studies aiming at identifying specific prognostic CNA-based markers in AML are still lacking. Using 367 AML, we identified four recurrent CNA on chromosomes 11 and 21 that predicted outcome even after adjusting for standard prognostic risk factors and potentially delineated two new subclasses of AML with poor prognosis. ERG amplification, the most frequent CNA, was related to cytarabine resistance, a cornerstone drug of AML therapy. These findings were further validated in The Cancer Genome Atlas data. Our results demonstrate that specific CNA are of independent prognostic relevance, and provide new molecular information into the genomic basis of AML and cytarabine response. Finally, these CNA identified two potential novel risk groups of AML, which when confirmed prospectively, may improve the clinical risk stratification and potentially the AML outcome.
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Affiliation(s)
- O Nibourel
- CHU Lille University Hospital, Department of Hematology, Lille, France
| | - S Guihard
- INSERM UMR-S1172, Institute for Cancer Research of Lille, Factors of Leukemia Cell Persistance, Lille Cedex, France
| | - C Roumier
- CHU Lille University Hospital, Department of Hematology, Lille, France
| | - N Pottier
- CHU Lille University Hospital, Department of Biochemistry and Molecular Biology, Lille, France
| | - C Terre
- Hospital of Versailles, Department of Hematology, Chesnay, France
| | - A Paquet
- University Côte d'Azur, CNRS Institute of Molecular and Cellular Pharmacology, Sophia-Antipolis, Nice, France
| | - P Peyrouze
- INSERM UMR-S1172, Institute for Cancer Research of Lille, Factors of Leukemia Cell Persistance, Lille Cedex, France
| | - S Geffroy
- CHU Lille University Hospital, Department of Hematology, Lille, France
| | - S Quentin
- University Paris Diderot, INSERM U944 Saint-Louis Hospital, Department of Hematology, Paris, France
| | - A Alberdi
- University Paris Diderot, INSERM U944 Saint-Louis Hospital, Department of Hematology, Paris, France
| | - R B Abdelali
- University Paris Diderot, INSERM U944 Saint-Louis Hospital, Department of Hematology, Paris, France
| | - A Renneville
- CHU Lille University Hospital, Department of Hematology, Lille, France
| | - C Demay
- CHU Lille University Hospital, Department of Hematology, Lille, France
| | - K Celli-Lebras
- University Paris 7, Department of Hematology, Paris, France
| | - P Barbry
- University Côte d'Azur, CNRS Institute of Molecular and Cellular Pharmacology, Sophia-Antipolis, Nice, France
| | - B Quesnel
- INSERM UMR-S1172, Institute for Cancer Research of Lille, Factors of Leukemia Cell Persistance, Lille Cedex, France
| | - S Castaigne
- Hospital of Versailles, Department of Hematology, Chesnay, France
| | - H Dombret
- University Paris 7, Department of Hematology, Paris, France
| | - J Soulier
- University Paris Diderot, INSERM U944 Saint-Louis Hospital, Department of Hematology, Paris, France
| | - C Preudhomme
- CHU Lille University Hospital, Department of Hematology, Lille, France
| | - M H Cheok
- INSERM UMR-S1172, Institute for Cancer Research of Lille, Factors of Leukemia Cell Persistance, Lille Cedex, France
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10
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Hervella M, Svensson EM, Alberdi A, Günther T, Izagirre N, Munters AR, Alonso S, Ioana M, Ridiche F, Soficaru A, Jakobsson M, Netea MG, de-la-Rua C. The mitogenome of a 35,000-year-old Homo sapiens from Europe supports a Palaeolithic back-migration to Africa. Sci Rep 2016; 6:25501. [PMID: 27195518 PMCID: PMC4872530 DOI: 10.1038/srep25501] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Accepted: 04/19/2016] [Indexed: 01/23/2023] Open
Abstract
After the dispersal of modern humans (Homo sapiens) Out of Africa, hominins with a similar morphology to that of present-day humans initiated the gradual demographic expansion into Eurasia. The mitogenome (33-fold coverage) of the Peştera Muierii 1 individual (PM1) from Romania (35 ky cal BP) we present in this article corresponds fully to Homo sapiens, whilst exhibiting a mosaic of morphological features related to both modern humans and Neandertals. We have identified the PM1 mitogenome as a basal haplogroup U6*, not previously found in any ancient or present-day humans. The derived U6 haplotypes are predominantly found in present-day North-Western African populations. Concomitantly, those found in Europe have been attributed to recent gene-flow from North Africa. The presence of the basal haplogroup U6* in South East Europe (Romania) at 35 ky BP confirms a Eurasian origin of the U6 mitochondrial lineage. Consequently, we propose that the PM1 lineage is an offshoot to South East Europe that can be traced to the Early Upper Paleolithic back migration from Western Asia to North Africa, during which the U6 lineage diversified, until the emergence of the present-day U6 African lineages.
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Affiliation(s)
- M Hervella
- Department of Genetics, Physical Anthropology and Animal Physiology, University of the Basque Country (UPV/EHU), Barrio Sarriena s/n. 48940 Leioa, Bizkaia, Spain
| | - E M Svensson
- Department of Organismal Biology, Uppsala University, 75236 Uppsala, Sweden
| | - A Alberdi
- Natural History Museum of Denmark, University of Copenhagen, Øster Voldgade 5-7, 1350 Copenhagen, Denmark
| | - T Günther
- Department of Organismal Biology, Uppsala University, 75236 Uppsala, Sweden
| | - N Izagirre
- Department of Genetics, Physical Anthropology and Animal Physiology, University of the Basque Country (UPV/EHU), Barrio Sarriena s/n. 48940 Leioa, Bizkaia, Spain
| | - A R Munters
- Department of Organismal Biology, Uppsala University, 75236 Uppsala, Sweden
| | - S Alonso
- Department of Genetics, Physical Anthropology and Animal Physiology, University of the Basque Country (UPV/EHU), Barrio Sarriena s/n. 48940 Leioa, Bizkaia, Spain
| | - M Ioana
- Human Genomics Laboratory, University of Medicine and Pharmacy of Craiova, Bvd. 1 Mai no 66, Romania.,Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands
| | - F Ridiche
- Museum of Oltenia, History and Archaeology Department, Madona Dudu str. no. 14, Craiova, Romania
| | - A Soficaru
- "Fr. J. Rainer" Institute of Anthropology, Romanian Academy, Eroii Sanitari 8, P. O. Box 35-13, Romania
| | - M Jakobsson
- Department of Organismal Biology, Uppsala University, 75236 Uppsala, Sweden.,Science for Life laboratory, Uppsala University, 75123 Uppsala, Sweden
| | - M G Netea
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands
| | - C de-la-Rua
- Department of Genetics, Physical Anthropology and Animal Physiology, University of the Basque Country (UPV/EHU), Barrio Sarriena s/n. 48940 Leioa, Bizkaia, Spain
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11
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Alberdi A, Martí-Vidal I, Marcaide J, Guirado J, Pérez-Torres M, Ros E, Brunthaler A. The jet of the Low Luminosity AGN of M81. EPJ Web of Conferences 2013. [DOI: 10.1051/epjconf/20136108002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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12
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13
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Virely C, Moulin S, Cobaleda C, Lasgi C, Alberdi A, Soulier J, Sigaux F, Chan S, Kastner P, Ghysdael J. Haploinsufficiency of the IKZF1 (IKAROS) tumor suppressor gene cooperates with BCR-ABL in a transgenic model of acute lymphoblastic leukemia. Leukemia 2010; 24:1200-4. [DOI: 10.1038/leu.2010.63] [Citation(s) in RCA: 74] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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14
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Delhommeau F, Dupont S, Della Valle V, James C, Trannoy S, Massé A, Kosmider O, Le Couedic JP, Robert F, Alberdi A, Lécluse Y, Plo I, Dreyfus FJ, Marzac C, Casadevall N, Lacombe C, Romana SP, Dessen P, Soulier J, Viguié F, Fontenay M, Vainchenker W, Bernard OA. Mutation in TET2 in myeloid cancers. N Engl J Med 2009; 360:2289-301. [PMID: 19474426 DOI: 10.1056/nejmoa0810069] [Citation(s) in RCA: 1342] [Impact Index Per Article: 89.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
BACKGROUND The myelodysplastic syndromes and myeloproliferative disorders are associated with deregulated production of myeloid cells. The mechanisms underlying these disorders are not well defined. METHODS We conducted a combination of molecular, cytogenetic, comparative-genomic-hybridization, and single-nucleotide-polymorphism analyses to identify a candidate tumor-suppressor gene common to patients with myelodysplastic syndromes, myeloproliferative disorders, and acute myeloid leukemia (AML). The coding sequence of this gene, TET2, was determined in 320 patients. We analyzed the consequences of deletions or mutations in TET2 with the use of in vitro clonal assays and transplantation of human tumor cells into mice. RESULTS We initially identified deletions or mutations in TET2 in three patients with myelodysplastic syndromes, in three of five patients with myeloproliferative disorders, in two patients with primary AML, and in one patient with secondary AML. We selected the six patients with myelodysplastic syndromes or AML because they carried acquired rearrangements on chromosome 4q24; we selected the five patients with myeloproliferative disorders because they carried a dominant clone in hematopoietic progenitor cells that was positive for the V617F mutation in the Janus kinase 2 (JAK2) gene. TET2 defects were observed in 15 of 81 patients with myelodysplastic syndromes (19%), in 24 of 198 patients with myeloproliferative disorders (12%) (with or without the JAK2 V617F mutation), in 5 of 21 patients with secondary AML (24%), and in 2 of 9 patients with chronic myelomonocytic leukemia (22%). TET2 defects were present in hematopoietic stem cells and preceded the JAK2 V617F mutation in the five samples from patients with myeloproliferative disorders that we analyzed. CONCLUSIONS Somatic mutations in TET2 occur in about 15% of patients with various myeloid cancers.
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15
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Alberdi A, Sartor T, Sosa MA. Binding of AP-2 adaptor complex to brain membrane is regulated by phosphorylation of proteins. Biochem Biophys Res Commun 2005; 330:695-700. [PMID: 15809053 DOI: 10.1016/j.bbrc.2005.03.038] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2005] [Indexed: 11/18/2022]
Abstract
Phosphorylation of proteins appears as a key process in early steps of clathrin coated vesicle formation. Here, we report that treatment of post-nuclear fraction with alkaline phosphatase induced redistribution of alpha subunits of AP-2 adaptor complex to cytosol and this effect was higher in the alpha2 subunit. A high serine phosphorylation status of alpha subunits correlated with the higher affinity of AP-2 to membranes. Using a simple binding assay, where membranes were incubated with either purified adaptors or cytosols, we observed an inhibitory effect of tyrphostin, a tyrosine kinase inhibitor, on the binding of AP-2 to membranes, but also an unexpected decrease induced by the phosphatase inhibitor cyclosporine. We also show an inhibitory effect of ATP mediated by cytosolic proteins, although it could not be related to the phosphorylation of AP-2, suggesting an action upstream a cascade of phosphorylations that participate in the regulation of the assembly of AP-2 to membranes.
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Affiliation(s)
- A Alberdi
- Instituto de Histología y Embriología, Facultad de Ciencias Médicas, Universidad Nacional de Cuyo, Mendoza (5500), Argentina.
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16
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Alberdi A, Jimenez-Ortiz V, Sosa MA. The calcium chelator BAPTA affects the binding of assembly protein AP-2 to membranes. BIOCELL 2001; 25:167-72. [PMID: 11590892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
Abstract
Clathrin coated vesicles are involved in receptor-mediated transport. The coat of these vesicles is constituted mostly of clathrin and the assembly proteins AP-1 or AP-2. In the present study using an in vitro binding system, we found that the interaction of AP-2 but not AP-1 with membranes diminished when the calcium chelating agent BAPTA was added. The maximal inhibitory effect was observed with 10 mM of the chelating agent. Binding of AP-2 to membranes was recovered by adding calcium in a concentration-dependent fashion. Binding was also affected when the membranes were previously treated with BAPTA and then washed. However, other chelating agents such as EDTA or EGTA, as well as the zinc chelating TPEN, did not have any effect on the binding. From these results we postulate a role for calcium in regulating the assembly-disassembly cycle of adaptors in the formation of clathrin coated vesicles.
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Affiliation(s)
- A Alberdi
- Instituto de Histología y Embriología, Facultad de Ciencias Médicas, Universidad Nacional de Cuyo, Mendoza, Argentina
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17
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Larrea E, Alberdi A, Castelruiz Y, Boya P, Civeira MP, Prieto J. Expression of interferon-alpha subtypes in peripheral mononuclear cells from patients with chronic hepatitis C: a role for interferon-alpha5. J Viral Hepat 2001; 8:103-10. [PMID: 11264730 DOI: 10.1046/j.1365-2893.2001.00273.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Interferon (IFN)-alpha is a family of antiviral proteins encoded by different genes. The biological significance of the existence of various IFN-alpha subtypes is not clear. We have investigated the interferon system in chronic hepatitis C virus (HCV) infection, a disease that responds to interferon-alpha2 therapy in only a limited proportion of cases. We analysed the expression of interferon regulatory factor (IRF)-1, IRF-2, and IFN-alpha subtypes in nonstimulated and Sendai virus-stimulated peripheral blood mononuclear cells (PBMC) from HCV infected patients and healthy controls. We observed that the IRF-1 mRNA and IRF-1/IRF-2 ratios were increased in PBMC from hepatitis C patients with respect to normal subjects. Sendai virus stimulation of PBMC led to a significant increase in the levels of IRF-1, IRF-2 and IFN-alpha mRNAs and in the production of IFN-alpha protein with respect to basal values in healthy controls as well as in patients with HCV infection. In addition, we found that while natural HCV infection induced increased IFN-alpha5 expression in PBMC, in vitro infection of these cells with Sendai virus caused a raise in the expression of IFN-alpha8 in both patients and normal controls. In summary, our results indicate that virus-induced activation of the IFN system in human PBMC is associated with selective expression of individual IFN-alpha subtypes, IFN-alpha5 being the specific subtype induced in PBMC from patients with chronic HCV infection.
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Affiliation(s)
- E Larrea
- Department of Medicine and Liver Unit, Clínica Universitaria, University of Navarra, 31008 Pamplona, Spain
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18
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Abstract
A 16-month sequence of radio images of the active galaxy 3C120 with the Very Long Baseline Array reveals a region in the relativistic jet where superluminal components flash on and off over time scales of months, while the polarization angle rotates. This can be explained by interaction between the jet and an interstellar cloud located about 8 parsecs from the center of the galaxy. The cloud, which rotates the polarization direction and possibly eclipses a section of the jet, represents a "missing link" between the ultradense broad-emission-line clouds closer to the center and the lower density narrow-emission-line clouds seen on kiloparsec scales.
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Affiliation(s)
- JL Gomez
- Instituto de Astrofisica de Andalucia (CSIC), Apartado 3004, Granada 18080, Spain. Institute for Astrophysical Research, Boston University, 725 Commonwealth Avenue, Boston, MA 02215, USA. Astronomical Institute, St. Petersburg State U
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19
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Marcaide JM, Alberdi A, Ros E, Diamond P, Shapiro II, Guirado JC, Jones DL, Krichbaum TP, Mantovani F, Preston RA, Rius A, Schilizzi RT, Trigilio C, Whitney AR, Witzel A. Expansion of SN 1993J. Science 1995. [DOI: 10.1126/science.270.5241.1475] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Affiliation(s)
- J. M. Marcaide
- J. M. Marcaide and E. Ros, Departamento de Astronomía, Universitat de València, E-46100 Burjassot, València, Spain
| | - A. Alberdi
- A. Alberdi, Laboratorio de Astrofísica Espacial y Física Fundamental, Instituto Nacional de Técnica Aeroespacial (INTA), E-28080 Madrid, Spain, and Instituto de Astrofísica de Andalucía-Consejo Superior de Investigaciones Cientificas (CSIC), Apdo. Correos 3004, E-18080 Granada, Spain
| | - E. Ros
- J. M. Marcaide and E. Ros, Departamento de Astronomía, Universitat de València, E-46100 Burjassot, València, Spain
| | - P. Diamond
- P. Diamond, National Radio Astronomy Observatory, Socorro, NM 87801, USA
| | - I. I. Shapiro
- I. I. Shapiro, Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USA
| | - J. C. Guirado
- J. C. Guirado, D. L. Jones, R. A. Preston, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, USA
| | - D. L. Jones
- J. C. Guirado, D. L. Jones, R. A. Preston, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, USA
| | - T. P. Krichbaum
- T. P. Krichbaum and A. Witzel, Max-Planck Institut für Radioastronomie, Auf dem Hügel 69, D-50131 Bonn, Germany
| | - F. Mantovani
- F. Mantovani, Istituto di Radioastronomia, Consiglio Nazionale delle Ricerche (CNR), I-Bologna 40129, Italy
| | - R. A. Preston
- J. C. Guirado, D. L. Jones, R. A. Preston, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, USA
| | - A. Rius
- A. Rius, Laboratorio de Astrofísica Espacial y Física Fundamental, INTA, E-28080 Madrid, Spain, and Centre d'Estudis Avançats-C.S.I.C., Camí de Santa Barbara s/n, E-17300 Blanes, Girona, Spain
| | - R. T. Schilizzi
- R. T. Schilizzi, Joint Institute for VLBI in Europe, Postbus 2, 7990 AA Dwingeloo, Netherlands, and Leiden Observatory, Postbus 9513, 2300 RA Leiden, Netherlands
| | - C. Trigilio
- C. Trigilio, Istituto di Radioastronomia, CNR, Noto, Italy
| | - A. R. Whitney
- A. R. Whitney, Massachusetts Institute of Technology-Haystack Observatory, Westford, MA 01886, USA
| | - A. Witzel
- T. P. Krichbaum and A. Witzel, Max-Planck Institut für Radioastronomie, Auf dem Hügel 69, D-50131 Bonn, Germany
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20
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Torres P, Ruíz E, Rebolledo C, Mira A, Cubillos V, Navarrete N, Gesche W, Montefusco A, Valdés L, Alberdi A. [Parasitism in fishes and human riverside communities of the Huillinco and Natri lakes (Great Island of Chiloé), Chile]. Bol Chil Parasitol 1990; 45:47-55. [PMID: 2152358] [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: 12/30/2022]
Abstract
In April and December 1989, 35 fish from Lake Huillinco (42 degrees 48'S, 74 degrees 02'W) and 36 fish from Lake Natri (42 degrees 48'S, 73 degrees 50'W), in the Great Island of Chiloé (Chile) were examined. Coprological samples from 159 persons, 17 dogs, 19 pigs and 4 cats from around both lakes were examined for Diphyllobothrium spp. infection. In the Lake Huillinco the following helminths of fishes were determined: Contracaecum sp. and Hysterothylacium sp. in Salmo trutta, Cauque mauleanum and Eleginops maclovinus; Dichelyne (Cucullanellus) dichelyneformis in S. trutta and E. maclovinus and Scolex pleuronectis in S. trutta. One specimen of Mugil cephalus did not show helminth parasites. Prevalence of infection were greater for Contracaecum sp. in S. trutta (75.0%) and C. mauleanum (76.0%); and Hysterothylacium sp. in E. maclovinus (75.0%). Mean intensity was higher for D. (C.) dichelyneformis in E. maclovinus. Contracaecum sp. in S. trutta, Oncorhynchus mykiss, Oncorhynchus kisutch and Galaxias maculatus; Acanthocephalus sp. in S. trutta and G. maculatus, S. pleuronectis in O. mykiss and Cystidicoloides sp. in G. maculatus were determined at Lake Natri. Prevalence and intensity of infection were higher for Contracaecum sp. in S. trutta and O. kisutch. Infection by Diphyllobothrium sp. was determined in one domestic cat. Prevalence of infection by intestinal protozoan and helminths in human population only showed significative differences for Ascaris lumbricoides and Trichuris trichiura that were higher in the Lake Huillinco. Importance of natural infection by helminth parasites for fish in cultured condition and possible mechanisms of infections in relation to the diet of fishes are discussed.
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Affiliation(s)
- P Torres
- Instituto de Parasitología, Universidad Austral de Chile, Valdivia
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21
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22
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Ulloa J, Cubillos V, Montecinos MI, Alberdi A. [Aspergillosis in wild geese (Chloëphaga poliocephala scl., 1857) in Chile]. Zentralbl Veterinarmed B 1987; 34:30-5. [PMID: 3296570 DOI: 10.1111/j.1439-0450.1987.tb00367.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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23
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Yañez Polo MA, Beneytez F, Soriguer Escofet FC, Pachón Diaz J, Villar Ortíz J, Alberdi A, Sánchez Guijo P, de la Lama J, Causse Prado M, Muñoz González J, Melero Bellido M, Milán Martín JA, Ortíz Leyba C, Pousibert Sanfeliú H, Rodríguez Martin ME, Pérez Cobos G, Manso Gómez F. [Clinico-radiological characteristics in a hydrofluorosis population (90 cases)]. Rev Clin Esp 1975; 139:229-34. [PMID: 1197846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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24
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Villar Ortíz J, Yáñez Polo MA, Pachón Díaz J, Sánchez Guijo P, De La Lama J, Alberdi A, Causse Prado M, Muñóz González J, Soriguer FC, Melero Bellido M, Ortiz Leyba C, Beneitez F, Pérez Cobos G, Pousibet Sanfeliu H, Rodríguez Martín M, Manso García F. [The existence of fluorosis regions in Las Hurdes Altas]. Rev Clin Esp 1975; 138:143-8. [PMID: 1178959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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