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Hurtado A, Mota-Gómez I, Lao M, Real FM, Jedamzick J, Burgos M, Lupiáñez DG, Jiménez R, Barrionuevo FJ. Complete male-to-female sex reversal in XY mice lacking the miR-17~92 cluster. Nat Commun 2024; 15:3809. [PMID: 38714644 PMCID: PMC11076593 DOI: 10.1038/s41467-024-47658-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Accepted: 04/04/2024] [Indexed: 05/10/2024] Open
Abstract
Mammalian sex determination is controlled by antagonistic gene cascades operating in embryonic undifferentiated gonads. The expression of the Y-linked gene SRY is sufficient to trigger the testicular pathway, whereas its absence in XX embryos leads to ovarian differentiation. Yet, the potential involvement of non-coding regulation in this process remains unclear. Here we show that the deletion of a single microRNA cluster, miR-17~92, induces complete primary male-to-female sex reversal in XY mice. Sry expression is delayed in XY knockout gonads, which develop as ovaries. Sertoli cell differentiation is reduced, delayed and unable to sustain testicular development. Pre-supporting cells in mutant gonads undergo a transient state of sex ambiguity which is subsequently resolved towards the ovarian fate. The miR-17~92 predicted target genes are upregulated, affecting the fine regulation of gene networks controlling gonad development. Thus, microRNAs emerge as key components for mammalian sex determination, controlling Sry expression timing and Sertoli cell differentiation.
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Grants
- P20-00583 Consejería de Economía, Innovación, Ciencia y Empleo, Junta de Andalucía (Ministry of Economy, Innovation, Science and Employment, Government of Andalucia)
- P20-00583 Consejería de Economía, Innovación, Ciencia y Empleo, Junta de Andalucía (Ministry of Economy, Innovation, Science and Employment, Government of Andalucia)
- P11-CVI-7291 Consejería de Economía, Innovación, Ciencia y Empleo, Junta de Andalucía (Ministry of Economy, Innovation, Science and Employment, Government of Andalucia)
- P20-00583 Consejería de Economía, Innovación, Ciencia y Empleo, Junta de Andalucía (Ministry of Economy, Innovation, Science and Employment, Government of Andalucia)
- IRTG2403 Deutsche Forschungsgemeinschaft (German Research Foundation)
- IRTG2403 Deutsche Forschungsgemeinschaft (German Research Foundation)
- IRTG2403 Deutsche Forschungsgemeinschaft (German Research Foundation)
- IRTG2403 Deutsche Forschungsgemeinschaft (German Research Foundation)
- grant no. 101045439, 3D-REVOLUTION EC | EU Framework Programme for Research and Innovation H2020 | H2020 Priority Excellent Science | H2020 European Research Council (H2020 Excellent Science - European Research Council)
- Ministerio de Ciencia e Innovación. Agencia Estatal de Investigación. Grant No. PID2022-139302NB-I00
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Affiliation(s)
- Alicia Hurtado
- Department of Genetics and Institute of Biotechnology, Labs. 127 and A105, Centre for Biomedical Research, University of Granada, Armilla, Granada, Spain
- Epigenetics and Sex Development Group, Berlin Institute for Medical Systems Biology, Max-Delbrück Center for Molecular Medicine, Berlin, Germany
- Centro Andaluz de Biología del Desarrollo (CABD), CSIC/UPO/JA, Seville, Spain
| | - Irene Mota-Gómez
- Epigenetics and Sex Development Group, Berlin Institute for Medical Systems Biology, Max-Delbrück Center for Molecular Medicine, Berlin, Germany
| | - Miguel Lao
- Department of Genetics and Institute of Biotechnology, Labs. 127 and A105, Centre for Biomedical Research, University of Granada, Armilla, Granada, Spain
| | - Francisca M Real
- Research Group Development & Disease, Max Planck Institute for Molecular Genetics, Berlin, Germany
| | - Johanna Jedamzick
- Epigenetics and Sex Development Group, Berlin Institute for Medical Systems Biology, Max-Delbrück Center for Molecular Medicine, Berlin, Germany
| | - Miguel Burgos
- Department of Genetics and Institute of Biotechnology, Labs. 127 and A105, Centre for Biomedical Research, University of Granada, Armilla, Granada, Spain
| | - Darío G Lupiáñez
- Epigenetics and Sex Development Group, Berlin Institute for Medical Systems Biology, Max-Delbrück Center for Molecular Medicine, Berlin, Germany.
- Centro Andaluz de Biología del Desarrollo (CABD), CSIC/UPO/JA, Seville, Spain.
| | - Rafael Jiménez
- Department of Genetics and Institute of Biotechnology, Labs. 127 and A105, Centre for Biomedical Research, University of Granada, Armilla, Granada, Spain.
| | - Francisco J Barrionuevo
- Department of Genetics and Institute of Biotechnology, Labs. 127 and A105, Centre for Biomedical Research, University of Granada, Armilla, Granada, Spain.
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2
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Parras GG, Delgado-García JM, López-Ramos JC, Gruart A, Leal-Campanario R. Cerebellar interpositus nucleus exhibits time-dependent errors and predictive responses. NPJ Sci Learn 2024; 9:12. [PMID: 38409163 PMCID: PMC10897197 DOI: 10.1038/s41539-024-00224-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 02/13/2024] [Indexed: 02/28/2024]
Abstract
Learning is a functional state of the brain that should be understood as a continuous process, rather than being restricted to the very moment of its acquisition, storage, or retrieval. The cerebellum operates by comparing predicted states with actual states, learning from errors, and updating its internal representation to minimize errors. In this regard, we studied cerebellar interpositus nucleus (IPn) functional capabilities by recording its unitary activity in behaving rabbits during an associative learning task: the classical conditioning of eyelid responses. We recorded IPn neurons in rabbits during classical eyeblink conditioning using a delay paradigm. We found that IPn neurons reduce error signals across conditioning sessions, simultaneously increasing and transmitting spikes before the onset of the unconditioned stimulus. Thus, IPn neurons generate predictions that optimize in time and shape the conditioned eyeblink response. Our results are consistent with the idea that the cerebellum works under Bayesian rules updating the weights using the previous history.
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Grants
- DOC-00309 Consejería de Economía, Innovación, Ciencia y Empleo, Junta de Andalucía (Ministry of Economy, Innovation, Science and Employment, Government of Andalucia)
- BIO-122 Consejería de Economía, Innovación, Ciencia y Empleo, Junta de Andalucía (Ministry of Economy, Innovation, Science and Employment, Government of Andalucia)
- PID2021-122446NB-100 Ministerio de Economía y Competitividad (Ministry of Economy and Competitiveness)
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Affiliation(s)
- Gloria G Parras
- Division of Neurosciences, Universidad Pablo de Olavide, Seville, Spain.
| | | | | | - Agnès Gruart
- Division of Neurosciences, Universidad Pablo de Olavide, Seville, Spain
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3
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Esteban JM, Martín-Serra A, Pérez-Ramos A, Mulot B, Jones K, Figueirido B. The impact of the land-to-sea transition on evolutionary integration and modularity of the pinniped backbone. Commun Biol 2023; 6:1141. [PMID: 37949962 PMCID: PMC10638317 DOI: 10.1038/s42003-023-05512-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 10/26/2023] [Indexed: 11/12/2023] Open
Abstract
In this study, we investigate how the terrestrial-aquatic transition influenced patterns of axial integration and modularity in response to the secondary adaptation to a marine lifestyle. We use 3D geometric morphometrics to quantify shape covariation among presacral vertebrae in pinnipeds (Carnivora; Pinnipedia) and to compare with patterns of axial integration and modularity in their close terrestrial relatives. Our results indicate that the vertebral column of pinnipeds has experienced a decrease in the strength of integration among all presacral vertebrae when compared to terrestrial carnivores (=fissipeds). However, separate integration analyses among the speciose Otariidae (i.e., sea lions and fur seals) and Phocidae (i.e., true seals) also suggests the presence of different axial organizations in these two groups of crown pinnipeds. While phocids present a set of integrated "thoracic" vertebrae, the presacral vertebrae of otariids are characterized by the absence of any set of vertebrae with high integration. We hypothesize that these differences could be linked to their specific modes of aquatic locomotion -i.e., pelvic vs pectoral oscillation. Our results provide evidence that the vertebral column of pinnipeds has been reorganized from the pattern observed in fissipeds but is more complex than a simple "homogenization" of the modular pattern of their close terrestrial relatives.
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Affiliation(s)
- Juan Miguel Esteban
- Departamento de Ecología y Geología, Facultad de Ciencias, Universidad de Málaga, Campus de Teatinos s/n, 29071, Málaga, Spain.
| | - Alberto Martín-Serra
- Departamento de Ecología y Geología, Facultad de Ciencias, Universidad de Málaga, Campus de Teatinos s/n, 29071, Málaga, Spain
| | - Alejandro Pérez-Ramos
- Departamento de Ecología y Geología, Facultad de Ciencias, Universidad de Málaga, Campus de Teatinos s/n, 29071, Málaga, Spain
| | - Baptiste Mulot
- ZooParc de Beauval & Beauval Nature, 41110, Saint-Aignan, France
| | - Katrina Jones
- Department of Earth and Environmental Sciences, University of Manchester, Williamson Building, Oxford Road, Manchester, M13 9PL, UK
| | - Borja Figueirido
- Departamento de Ecología y Geología, Facultad de Ciencias, Universidad de Málaga, Campus de Teatinos s/n, 29071, Málaga, Spain
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4
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Rubio-Contreras D, Gómez-Herreros F. TDP1 suppresses chromosomal translocations and cell death induced by abortive TOP1 activity during gene transcription. Nat Commun 2023; 14:6940. [PMID: 37945566 PMCID: PMC10636166 DOI: 10.1038/s41467-023-42622-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 10/17/2023] [Indexed: 11/12/2023] Open
Abstract
DNA topoisomerase I (TOP1) removes torsional stress by transiently cutting one DNA strand. Such cuts are rejoined by TOP1 but can occasionally become abortive generating permanent protein-linked single strand breaks (SSBs). The repair of these breaks is initiated by tyrosyl-DNA phosphodiesterase 1 (TDP1), a conserved enzyme that unlinks the TOP1 peptide from the DNA break. Additionally, some of these SSBs can result in double strand breaks (DSBs) either during replication or by a poorly understood transcription-associated process. In this study, we identify these DSBs as a source of genome rearrangements, which are suppressed by TDP1. Intriguingly, we also provide a mechanistic explanation for the formation of chromosomal translocations unveiling an error-prone pathway that relies on the MRN complex and canonical non-homologous end-joining. Collectively, these data highlight the threat posed by TOP1-induced DSBs during transcription and demonstrate the importance of TDP1-dependent end-joining in protecting both gene transcription and genome stability.
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Affiliation(s)
- Diana Rubio-Contreras
- Instituto de Biomedicina de Sevilla, IBiS, Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, 41013, Seville, Spain
- Departamento de Genética, Universidad de Sevilla, 41012, Seville, Spain
| | - Fernando Gómez-Herreros
- Instituto de Biomedicina de Sevilla, IBiS, Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, 41013, Seville, Spain.
- Departamento de Genética, Universidad de Sevilla, 41012, Seville, Spain.
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5
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Rivas-Marin E, Moyano-Palazuelo D, Henriques V, Merino E, Devos DP. Essential gene complement of Planctopirus limnophila from the bacterial phylum Planctomycetes. Nat Commun 2023; 14:7224. [PMID: 37940686 PMCID: PMC10632474 DOI: 10.1038/s41467-023-43096-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Accepted: 10/31/2023] [Indexed: 11/10/2023] Open
Abstract
Planctopirus limnophila belongs to the bacterial phylum Planctomycetes, a relatively understudied lineage with remarkable cell biology features. Here, we report a genome-wide analysis of essential gene content in P. limnophila. We show that certain genes involved in peptidoglycan synthesis or cell division, which are essential in most other studied bacteria, are not essential for growth under laboratory conditions in this species. We identify essential genes likely involved in lipopolysaccharide biosynthesis, consistent with the view of Planctomycetes as diderm bacteria, and highlight other essential genes of unknown functions. Furthermore, we explore potential stages of evolution of the essential gene repertoire in Planctomycetes and the related phyla Verrucomicrobia and Chlamydiae. Our results provide insights into the divergent molecular and cellular biology of Planctomycetes.
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Affiliation(s)
- Elena Rivas-Marin
- Centro Andaluz de Biología del Desarrollo, CSIC, Universidad Pablo de Olavide, Sevilla, Spain.
| | - David Moyano-Palazuelo
- Centro Andaluz de Biología del Desarrollo, CSIC, Universidad Pablo de Olavide, Sevilla, Spain
| | - Valentina Henriques
- Centro Andaluz de Biología del Desarrollo, CSIC, Universidad Pablo de Olavide, Sevilla, Spain
| | - Enrique Merino
- Instituto de Biotecnología, Universidad Nacional Autónoma de México, Cuernavaca, Morelos, México
| | - Damien P Devos
- Centro Andaluz de Biología del Desarrollo, CSIC, Universidad Pablo de Olavide, Sevilla, Spain.
- Institut Pasteur de Lille, Centre d'Infection et d'Immunité de Lille, University of Lille, Lille, France.
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6
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Gázquez-Sánchez F, Jiménez-Espejo F, Rodríguez-Rodríguez M, Martegani L, Voigt C, Ruíz-Lara D, Moreno A, Valero-Garcés B, Morellón M, Martín-Puertas C. Roman water management impacted the hydrological functioning of wetlands during drought periods. Sci Rep 2023; 13:18815. [PMID: 37914772 PMCID: PMC10620414 DOI: 10.1038/s41598-023-46010-5] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 10/26/2023] [Indexed: 11/03/2023] Open
Abstract
During the Roman domain of the Iberian Peninsula (from 201 BCE to 460 CE) water management infrastructures were built to satisfy high water demand. However, whether the Roman activities affected the hydrological balance of Iberian wetlands remains unclear. Here, we investigate the paleo-hydrology of Lake Zóñar (southern Iberia) by using the stable isotopes (16O, 17O, 18O, 1H and 2H) of its gypsum (CaSO4·2H2O) sediments and reconstruct the isotopic composition of the lake water during Roman times. A period of recurrent lake low stand occurred between 2120 and 1890 cal. yr BP (ca. 170 BCE to 60 CE), coinciding with a relatively dry climate stage recorded by most regional paleoclimate archives. The stable isotopes and hydrochemistry of the lake water during gypsum precipitation are consistent with a shallow saline lake that evaporated under relative humidity ~ 10% lower than the present annual mean and at least 20% less rainfall amount. Our analytical and archeological findings support lake level lowering during the Roman period was probably caused by combined arid climate conditions and diversion of the inlets feeding the lake. Spring capturing was likely necessary to satisfy the high water demand of nearby Roman settlements, in the framework of a period of persistent droughts.
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Affiliation(s)
- Fernando Gázquez-Sánchez
- Department of Biology and Geology, Building CITE IIB, Universidad de Almería, Carretera de Sacramento s.n, La Cañada de San Urbano, 04120, Almería, Spain.
- Andalusian Centre for the Monitoring and Assessment of Global Change (CAESCG), Building CITE V, University of Almería, 04120, Almería, Spain.
| | | | - Miguel Rodríguez-Rodríguez
- Department of Physical, Chemical and Natural Systems, Pablo de Olavide University, 41013, Seville, Spain
| | - Lucía Martegani
- Department of Biology and Geology, Building CITE IIB, Universidad de Almería, Carretera de Sacramento s.n, La Cañada de San Urbano, 04120, Almería, Spain
- Andalusian Centre for the Monitoring and Assessment of Global Change (CAESCG), Building CITE V, University of Almería, 04120, Almería, Spain
| | - Claudia Voigt
- Department of Biology and Geology, Building CITE IIB, Universidad de Almería, Carretera de Sacramento s.n, La Cañada de San Urbano, 04120, Almería, Spain
| | - Dolores Ruíz-Lara
- Oficina de Arqueología, Gerencia de Urbanismo de Córdoba, 14004, Córdoba, Spain
| | - Ana Moreno
- Department of Environmental Processes and Global Change, Pyrenean Institute of Ecology (IPE) - CSIC, Campus de Aula Dei, Avda. Montañana, 1005, 50059, Zaragoza, Spain
| | - Blas Valero-Garcés
- Department of Environmental Processes and Global Change, Pyrenean Institute of Ecology (IPE) - CSIC, Campus de Aula Dei, Avda. Montañana, 1005, 50059, Zaragoza, Spain
| | - Mario Morellón
- Department of Geodynamics, Stratigraphy and Paleontology, Faculty of Geological Sciences, Complutense University of Madrid, 28040, Madrid, Spain
| | - Celia Martín-Puertas
- Department of Geography, Royal Holloway University of London, Egham, TW20 0EX, UK
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7
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Plaza-Florido A, Esteban-Cornejo I, Mora-Gonzalez J, Torres-Lopez LV, Osuna-Prieto FJ, Gil-Cosano JJ, Radom-Aizik S, Labayen I, Ruiz JR, Altmäe S, Ortega FB. Gene-exercise interaction on brain health in children with overweight/obesity: the ActiveBrains randomized controlled trial. J Appl Physiol (1985) 2023; 135:775-785. [PMID: 37589055 PMCID: PMC10642513 DOI: 10.1152/japplphysiol.00435.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 08/08/2023] [Accepted: 08/14/2023] [Indexed: 08/18/2023] Open
Abstract
We investigated the interaction between a genetic score and an exercise intervention on brain health in children with overweight/obesity. One hundred one children with overweight/obesity (10.0 ± 1.5 yr, 59% girls) were randomized into a 20-wk combined exercise intervention or a control group. Several cognitive and academic outcomes were measured with validated tests. Hippocampal volume was quantified using magnetic resonance imaging. Six brain health-related polymorphisms [rs6265 (BDNF), rs2253206 (CREB1), rs2289656 (NTRK2), rs4680 (COMT), rs429358, and rs7412 (APOE)] were genotyped. Cognitive flexibility and academic skills improved significantly more in the exercise than in the control group only in the children with a "favorable" genetic profile [mean z-score, 0.41-0.67 (95% CI 0.11 to 1.18)], yet not in those with "less favorable" genetic profile. An individual response analysis showed that children responded to exercise in cognitive flexibility only in the "genetically favorable" group [i.e., 62% of them had a meaningful (≥0.2 Cohen d) increase in the exercise group compared with only 25% in the control group]. This finding was consistent in per-protocol and intention-to-treat analyses (P = 0.01 and P = 0.03, respectively). The results were not significant or not consistent for the rest of outcomes studied. Our findings suggest that having a more favorable genetic profile makes children with overweight/obesity more responsive to exercise, particularly for cognitive flexibility.NEW & NOTEWORTHY Interindividual differences have been reported in brain health-related outcomes in response to exercise interventions in adults, which could be partially explained by genetic background differences. However, the role of genetic polymorphisms on brain health-related outcomes in response to exercise interventions remains unexplored in pediatric population. The current study in children with overweight/obesity showed that a genetic score composed of six brain health-related polymorphisms (BDNF, CREB1, NTRK2, COMT, and APOE) regulated the exercise-induced response on several brain health outcomes, yet mainly and more consistently on cognitive flexibility.
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Affiliation(s)
- Abel Plaza-Florido
- Department of Physical Education and Sports, Faculty of Sport Sciences, Sport and Health University Research Institute (iMUDS), University of Granada, Granada, Spain
- Pediatric Exercise and Genomics Research Center, Department of Pediatrics, School of Medicine, University of California at Irvine, Irvine, California, United States
| | - Irene Esteban-Cornejo
- Department of Physical Education and Sports, Faculty of Sport Sciences, Sport and Health University Research Institute (iMUDS), University of Granada, Granada, Spain
- CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Granada, Spain
- Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
| | - Jose Mora-Gonzalez
- Department of Physical Education and Sports, Faculty of Sport Sciences, Sport and Health University Research Institute (iMUDS), University of Granada, Granada, Spain
| | - Lucia V Torres-Lopez
- Department of Physical Education and Sports, Faculty of Sport Sciences, Sport and Health University Research Institute (iMUDS), University of Granada, Granada, Spain
| | - Francisco J Osuna-Prieto
- Department of Physical Education and Sports, Faculty of Sport Sciences, Sport and Health University Research Institute (iMUDS), University of Granada, Granada, Spain
- Instituto de Investigación Sanitaria Pere Virgili, University Hospital of Tarragona Joan XXIII, Tarragona, Spain
| | - Jose J Gil-Cosano
- Department of Physical Education and Sports, Faculty of Sport Sciences, Sport and Health University Research Institute (iMUDS), University of Granada, Granada, Spain
- Department of Communication and Education, Universidad Loyola Andalucía, Dos Hermanas, Sevilla, Spain
| | - Shlomit Radom-Aizik
- Pediatric Exercise and Genomics Research Center, Department of Pediatrics, School of Medicine, University of California at Irvine, Irvine, California, United States
| | - Idoia Labayen
- CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Granada, Spain
- Research Institute for Sustainability & Food Chain Innovation (IS-FOOD), Public University of Navarre, Pamplona, Spain
- Department of Health Sciences, Public University of Navarre, Pamplona, Spain
- IdiSNA, Navarra Institute for Health Research, Pamplona, Spain
| | - Jonatan R Ruiz
- Department of Physical Education and Sports, Faculty of Sport Sciences, Sport and Health University Research Institute (iMUDS), University of Granada, Granada, Spain
- CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Granada, Spain
- Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
| | - Signe Altmäe
- Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
- Department of Biochemistry and Molecular Biology, Faculty of Sciences, University of Granada, Granada, Spain
- Division of Obstetrics and Gynecology, Department of Clinical Scinece, Intervention and Technology (CLINTEC), Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Francisco B Ortega
- Department of Physical Education and Sports, Faculty of Sport Sciences, Sport and Health University Research Institute (iMUDS), University of Granada, Granada, Spain
- CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Granada, Spain
- Faculty of Sport and Health Sciences, University of Jyväskylä, Jyväskylä, Finland
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8
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Cámara-Almirón J, Domínguez-García L, El Mammeri N, Lends A, Habenstein B, de Vicente A, Loquet A, Romero D. Molecular characterization of the N-terminal half of TasA during amyloid-like assembly and its contribution to Bacillus subtilis biofilm formation. NPJ Biofilms Microbiomes 2023; 9:68. [PMID: 37739955 PMCID: PMC10516879 DOI: 10.1038/s41522-023-00437-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Accepted: 09/12/2023] [Indexed: 09/24/2023] Open
Abstract
Biofilms are bacterial communities that result from a cell differentiation process leading to the secretion of an extracellular matrix (ECM) by part of the population. In Bacillus subtilis, the main protein component of the ECM is TasA, which forms a fiber-based scaffold that confers structure to the ECM. The N-terminal half of TasA is strongly conserved among Bacillus species and contains a protein domain, the rigid core (RcTasA), which is critical for the structural and functional properties of the recombinant protein. In this study, we demonstrate that recombinantly purified RcTasA in vitro retains biochemical properties previously observed for the entire protein. Further analysis of the RcTasA amino acid sequence revealed two aggregation-prone stretches and a region of imperfect amino acid repeats, which are known to contribute to functional amyloid assembly. Biochemical characterization of these stretches found in RcTasA revealed their amyloid-like capacity in vitro, contributing to the amyloid nature of RcTasA. Moreover, the study of the imperfect amino acid repeats revealed the critical role of residues D64, K68 and D69 in the structural function of TasA. Experiments with versions of TasA carrying the substitutions D64A and K68AD69A demonstrated a partial loss of function of the protein either in the assembly of the ECM or in the stability of the core and amyloid-like properties. Taken together, our findings allow us to better understand the polymerization process of TasA during biofilm formation and provide knowledge into the sequence determinants that promote the molecular behavior of protein filaments in bacteria.
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Affiliation(s)
- Jesús Cámara-Almirón
- Departamento de Microbiología, Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora", Universidad de Málaga, (Campus Universitario de Teatinos), Málaga, Spain
- Department of Fundamental Microbiology, Faculty of Biology and Medicine, University of Lausanne, Biophore Building, Lausanne, Switzerland
| | - Laura Domínguez-García
- Departamento de Microbiología, Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora", Universidad de Málaga, (Campus Universitario de Teatinos), Málaga, Spain
| | - Nadia El Mammeri
- CNRS, Chemistry and Biology of Membranes and Nanoobjects (CBMN), Institut Europeen de Chimie et Biologie (IECB), University of Bordeaux, Pessac, France
- Department of Chemistry, Massachusetts Institute of Technology, 170 Albany Street, Cambridge, MA, 02139, USA
| | - Alons Lends
- CNRS, Chemistry and Biology of Membranes and Nanoobjects (CBMN), Institut Europeen de Chimie et Biologie (IECB), University of Bordeaux, Pessac, France
- Latvian Institute of Organic Synthesis, Aizkraukles 21, Riga LV, 1006, Latvia
| | - Birgit Habenstein
- CNRS, Chemistry and Biology of Membranes and Nanoobjects (CBMN), Institut Europeen de Chimie et Biologie (IECB), University of Bordeaux, Pessac, France
| | - Antonio de Vicente
- Departamento de Microbiología, Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora", Universidad de Málaga, (Campus Universitario de Teatinos), Málaga, Spain
| | - Antoine Loquet
- CNRS, Chemistry and Biology of Membranes and Nanoobjects (CBMN), Institut Europeen de Chimie et Biologie (IECB), University of Bordeaux, Pessac, France
| | - Diego Romero
- Departamento de Microbiología, Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora", Universidad de Málaga, (Campus Universitario de Teatinos), Málaga, Spain.
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9
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Gomez-Gutierrez R, Ghosh U, Yau WM, Gamez N, Do K, Kramm C, Shirani H, Vegas-Gomez L, Schulz J, Moreno-Gonzalez I, Gutierrez A, Nilsson KPR, Tycko R, Soto C, Morales R. Two structurally defined Aβ polymorphs promote different pathological changes in susceptible mice. EMBO Rep 2023:e57003. [PMID: 37424505 PMCID: PMC10398671 DOI: 10.15252/embr.202357003] [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] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 05/10/2023] [Accepted: 05/16/2023] [Indexed: 07/11/2023] Open
Abstract
Misfolded Aβ is involved in the progression of Alzheimer's disease (AD). However, the role of its polymorphic variants or conformational strains in AD pathogenesis is not fully understood. Here, we study the seeding properties of two structurally defined synthetic misfolded Aβ strains (termed 2F and 3F) using in vitro and in vivo assays. We show that 2F and 3F strains differ in their biochemical properties, including resistance to proteolysis, binding to strain-specific dyes, and in vitro seeding. Injection of these strains into a transgenic mouse model produces different pathological features, namely different rates of aggregation, formation of different plaque types, tropism to specific brain regions, differential recruitment of Aβ40 /Aβ42 peptides, and induction of microglial and astroglial responses. Importantly, the aggregates induced by 2F and 3F are structurally different as determined by ssNMR. Our study analyzes the biological properties of purified Aβ polymorphs that have been characterized at the atomic resolution level and provides relevant information on the pathological significance of misfolded Aβ strains.
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Grants
- AARGD-18-566576 Alzheimer's Association (AA)
- PI21/00915 European Union
- P18-RT-2233 Consejería de Economía, Conocimiento, Empresas y Universidad, Junta de Andalucía (Ministry of Economy, Knowledge, Business and University, Andalusia)
- UMA18-FEDERJA-211 Consejería de Economía, Innovación, Ciencia y Empleo, Junta de Andalucía (Ministry of Economy, Innovation, Science and Employment, Government of Andalucia)
- PI21/00915 MEC | Instituto de Salud Carlos III (ISCIII)
- R56AG061878 National Institutes of Health (USA)
- RF1AG059321 National Institutes of Health (USA)
- Z01-DK029061-14 National Institutes of Health (USA)
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Affiliation(s)
- Ruben Gomez-Gutierrez
- Department of Neurology, The University of Texas Health Science Center at Houston, Houston, TX, USA
- Dpto. Biología Celular, Genética y Fisiología, Instituto de Investigación Biomédica de Málaga-IBIMA, Facultad de Ciencias, Universidad de Málaga, Málaga, Spain
| | - Ujjayini Ghosh
- Laboratory of Chemical Physics, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Wai-Ming Yau
- Laboratory of Chemical Physics, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Nazaret Gamez
- Department of Neurology, The University of Texas Health Science Center at Houston, Houston, TX, USA
- Dpto. Biología Celular, Genética y Fisiología, Instituto de Investigación Biomédica de Málaga-IBIMA, Facultad de Ciencias, Universidad de Málaga, Málaga, Spain
| | - Katherine Do
- Department of Neurology, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Carlos Kramm
- Department of Neurology, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Hamid Shirani
- Department of Physics, Chemistry and Biology, Linköping University, Linköping, Sweden
| | - Laura Vegas-Gomez
- Dpto. Biología Celular, Genética y Fisiología, Instituto de Investigación Biomédica de Málaga-IBIMA, Facultad de Ciencias, Universidad de Málaga, Málaga, Spain
| | - Jonathan Schulz
- Department of Neurology, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Ines Moreno-Gonzalez
- Department of Neurology, The University of Texas Health Science Center at Houston, Houston, TX, USA
- Dpto. Biología Celular, Genética y Fisiología, Instituto de Investigación Biomédica de Málaga-IBIMA, Facultad de Ciencias, Universidad de Málaga, Málaga, Spain
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
- Centro Integrativo de Biologia y Quimica Aplicada (CIBQA), Universidad Bernardo O'Higgins, Santiago, Chile
| | - Antonia Gutierrez
- Dpto. Biología Celular, Genética y Fisiología, Instituto de Investigación Biomédica de Málaga-IBIMA, Facultad de Ciencias, Universidad de Málaga, Málaga, Spain
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
| | - K Peter R Nilsson
- Department of Physics, Chemistry and Biology, Linköping University, Linköping, Sweden
| | - Robert Tycko
- Laboratory of Chemical Physics, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Claudio Soto
- Department of Neurology, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Rodrigo Morales
- Department of Neurology, The University of Texas Health Science Center at Houston, Houston, TX, USA
- Centro Integrativo de Biologia y Quimica Aplicada (CIBQA), Universidad Bernardo O'Higgins, Santiago, Chile
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10
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Flores-López M, García-Marchena N, Pavón-Morón FJ, Requena-Ocaña N, Sánchez-Marín L, Martín-Chaves L, García-Medina M, Pedraza C, Castilla-Ortega E, Ruiz JJ, Rodríguez de Fonseca F, Araos P, Serrano A. Plasma concentrations of lysophosphatidic acid and the expression of its receptors in peripheral blood mononuclear cells are altered in patients with cocaine use disorders. Transl Psychiatry 2023; 13:215. [PMID: 37344453 DOI: 10.1038/s41398-023-02523-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 06/08/2023] [Accepted: 06/13/2023] [Indexed: 06/23/2023] Open
Abstract
We have recently reported alterations in the plasma concentrations of lysophosphatidic acid (LPA) in patients with substance use disorders. In order to further explore the potential role of the LPA signaling system as biomarker in cocaine use disorders (CUD) we conducted a cross-sectional study with 105 patients diagnosed with CUD and 92 healthy controls. Participants were clinically evaluated and blood samples were collected to determine plasma concentrations of total LPA and LPA species (16:0-, 18:0-, 18:1-, 18:2-, and 20:4-LPA), and the gene expression of LPA1 and LPA2 receptors in peripheral blood mononuclear cells. We found that patients with CUD had significantly lower plasma concentration of the majority of LPA species, while the mRNA expression of LPA1 receptor was found to be higher than controls. Moreover, we found a positive association between plasma concentration of 20:4-LPA and relevant CUD-related variables: age of onset cocaine use and length of cocaine abstinence. The statistical analysis revealed sex differences in concentrations of total LPA and LPA species, and women showed higher LPA concentrations than men. Furthermore, studies in rats of both sexes showed that plasma concentrations of total LPA were also altered after acute and chronic cocaine administration, revealing a sexual dimorphism in these effects. This study found alterations on the LPA signaling system in both, patients with CUD and rats treated with cocaine. Our results demonstrate that LPA signaling is impacted by CUD and sex, which must be taken into consideration in future studies evaluating LPA as a reliable biomarker for CUD.
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Affiliation(s)
- María Flores-López
- Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina (IBIMA-Plataforma BIONAND), 29590, Málaga, Spain
- Unidad de Gestión Clínica de Salud Mental, Hospital Regional Universitario de Málaga, 29010, Málaga, Spain
- Departamento de Psicobiología y Metodología de las Ciencias del Comportamiento, Facultad de Psicología, Universidad de Málaga, 29010, Málaga, Spain
| | - Nuria García-Marchena
- Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina (IBIMA-Plataforma BIONAND), 29590, Málaga, Spain
- Unidad de Gestión Clínica de Salud Mental, Hospital Regional Universitario de Málaga, 29010, Málaga, Spain
- Unidad de Adicciones-Servicio de Medicina Interna, Institut d'Investigació en Ciències de la Salut Germans Trias i Pujol (IGTP), 08916, Badalona, Spain
| | - Francisco J Pavón-Morón
- Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina (IBIMA-Plataforma BIONAND), 29590, Málaga, Spain
- Unidad de Gestión Clínica Área del Corazón, Hospital Universitario Virgen de la Victoria de Málaga, 29010, Málaga, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Instituto de Salud Carlos III, 28029, Madrid, Spain
| | - Nerea Requena-Ocaña
- Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina (IBIMA-Plataforma BIONAND), 29590, Málaga, Spain
- Unidad de Gestión Clínica de Salud Mental, Hospital Regional Universitario de Málaga, 29010, Málaga, Spain
| | - Laura Sánchez-Marín
- Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina (IBIMA-Plataforma BIONAND), 29590, Málaga, Spain
- Unidad de Gestión Clínica de Salud Mental, Hospital Regional Universitario de Málaga, 29010, Málaga, Spain
| | - Laura Martín-Chaves
- Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina (IBIMA-Plataforma BIONAND), 29590, Málaga, Spain
- Unidad de Gestión Clínica Área del Corazón, Hospital Universitario Virgen de la Victoria de Málaga, 29010, Málaga, Spain
| | - Mónica García-Medina
- Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina (IBIMA-Plataforma BIONAND), 29590, Málaga, Spain
- Unidad de Gestión Clínica de Salud Mental, Hospital Regional Universitario de Málaga, 29010, Málaga, Spain
| | - Carmen Pedraza
- Departamento de Psicobiología y Metodología de las Ciencias del Comportamiento, Facultad de Psicología, Universidad de Málaga, 29010, Málaga, Spain
| | - Estela Castilla-Ortega
- Departamento de Psicobiología y Metodología de las Ciencias del Comportamiento, Facultad de Psicología, Universidad de Málaga, 29010, Málaga, Spain
| | - Juan J Ruiz
- Centro Provincial de Drogodependencias de Málaga, Diputación Provincial de Málaga, 29010, Málaga, Spain
| | - Fernando Rodríguez de Fonseca
- Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina (IBIMA-Plataforma BIONAND), 29590, Málaga, Spain.
- Unidad de Gestión Clínica de Neurología, Hospital Regional Universitario de Málaga, 29010, Málaga, Spain.
| | - Pedro Araos
- Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina (IBIMA-Plataforma BIONAND), 29590, Málaga, Spain.
- Departamento de Psicobiología y Metodología de las Ciencias del Comportamiento, Facultad de Psicología, Universidad de Málaga, 29010, Málaga, Spain.
| | - Antonia Serrano
- Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina (IBIMA-Plataforma BIONAND), 29590, Málaga, Spain.
- Unidad de Gestión Clínica de Salud Mental, Hospital Regional Universitario de Málaga, 29010, Málaga, Spain.
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11
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Pérez-Lorente AI, Molina-Santiago C, de Vicente A, Romero D. Sporulation Activated via σ W Protects Bacillus from a Tse1 Peptidoglycan Hydrolase Type VI Secretion System Effector. Microbiol Spectr 2023; 11:e0504522. [PMID: 36916921 PMCID: PMC10100999 DOI: 10.1128/spectrum.05045-22] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 02/21/2023] [Indexed: 03/16/2023] Open
Abstract
Within bacterial communities, community members engage in interactions employing diverse offensive and defensive tools to reach coexistence. Extracellular-matrix production and sporulation are defensive mechanisms used by Bacillus subtilis cells when they interact with Pseudomonas chlororaphis strains expressing a type VI secretion system (T6SS). Here, we define Tse1 as the main toxin mobilized by the Pseudomonas chlororaphis T6SS that triggers sporulation in Bacillus subtilis. We characterize Tse1 as a peptidoglycan hydrolase that indirectly alters the dynamics and functionality of the Bacillus cell membrane. We also delineate the response of Bacillus cells to Tse1, which through the coordinated actions of the extracellular sigma factor σW and the cytoplasmic histidine kinases KinA and KinB, culminates in activation of the sporulation cascade. We propose that this cellular developmental response permits bacilli to defend against the toxicity of T6SS-mobilized Tse1 effector. IMPORTANCE The study of bacterial interactions is helping to define species-specific strategies used to modulate the competition dynamics underlying the development of community compositions. In this study, we deciphered the role of Pseudomonas T6SS when competing with Bacillus and the mechanism by which a T6SS-toxin modifies Bacillus physiology. We found that Pseudomonas triggers Bacillus sporulation by injecting through T6SS a toxin that we called Tse1. We found that Tse1 is a hydrolase that degrades Bacillus peptidoglycan and indirectly damages Bacillus membrane functionality. In addition, we demonstrated the mechanism by which Bacillus cells increase the sporulation rate upon recognition of the presence of Tse1. Interestingly, asporogenic Bacillus cells are more sensitive to T6SS activity, which led us to propose sporulation as a last resort of bacilli to overcome this family of toxins.
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Affiliation(s)
- Alicia I. Pérez-Lorente
- Instituto de Hortofruticultura Subtropical y Mediterránea La Mayora, Universidad de Málaga-Consejo Superior de Investigaciones Científicas, Departamento de Microbiología, Universidad de Málaga, Málaga, Spain
| | - Carlos Molina-Santiago
- Instituto de Hortofruticultura Subtropical y Mediterránea La Mayora, Universidad de Málaga-Consejo Superior de Investigaciones Científicas, Departamento de Microbiología, Universidad de Málaga, Málaga, Spain
| | - Antonio de Vicente
- Instituto de Hortofruticultura Subtropical y Mediterránea La Mayora, Universidad de Málaga-Consejo Superior de Investigaciones Científicas, Departamento de Microbiología, Universidad de Málaga, Málaga, Spain
| | - Diego Romero
- Instituto de Hortofruticultura Subtropical y Mediterránea La Mayora, Universidad de Málaga-Consejo Superior de Investigaciones Científicas, Departamento de Microbiología, Universidad de Málaga, Málaga, Spain
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12
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Belmonte-Fernández A, Herrero-Ruíz J, Galindo-Moreno M, Limón-Mortés MC, Mora-Santos M, Sáez C, Japón MÁ, Tortolero M, Romero F. Cisplatin-induced cell death increases the degradation of the MRE11-RAD50-NBS1 complex through the autophagy/lysosomal pathway. Cell Death Differ 2023; 30:488-499. [PMID: 36477079 PMCID: PMC9950126 DOI: 10.1038/s41418-022-01100-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 11/17/2022] [Accepted: 11/25/2022] [Indexed: 12/12/2022] Open
Abstract
Cisplatin and other platinum-based anticancer agents are among the most widely used chemotherapy drugs in the treatment of different types of cancer. However, it is common to find patients who respond well to treatment at first but later relapse due to the appearance of resistance to cisplatin. Among the mechanisms responsible for this phenomenon is the increase in DNA damage repair. Here, we elucidate the effect of cisplatin on the MRN (MRE11-RAD50-NBS1) DNA damage sensor complex. We found that the tumor suppressor FBXW7 is a key factor in controlling the turnover of the MRN complex by inducing its degradation through lysosomes. Inhibition of lysosomal enzymes allowed the detection of the association of FBXW7-dependent ubiquitylated MRN with LC3 and the autophagy adaptor p62/SQSTM1 and the localization of MRN in lysosomes. Furthermore, cisplatin-induced cell death increased MRN degradation, suggesting that this complex is one of the targets that favor cell death. These findings open the possibility of using the induction of the degradation of the MRN complex after genotoxic damage as a potential therapeutic strategy to eliminate tumor cells.
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Affiliation(s)
| | - Joaquín Herrero-Ruíz
- Departamento de Microbiología, Facultad de Biología, Universidad de Sevilla, Sevilla, E-41012, Spain
| | - María Galindo-Moreno
- Departamento de Microbiología, Facultad de Biología, Universidad de Sevilla, Sevilla, E-41012, Spain
| | - M Cristina Limón-Mortés
- Departamento de Microbiología, Facultad de Biología, Universidad de Sevilla, Sevilla, E-41012, Spain
| | - Mar Mora-Santos
- Departamento de Microbiología, Facultad de Biología, Universidad de Sevilla, Sevilla, E-41012, Spain
| | - Carmen Sáez
- Instituto de Biomedicina de Sevilla (IBiS) and Departamento de Anatomía Patológica, Hospital Universitario Virgen del Rocío, Sevilla, E-41013, Spain
| | - Miguel Á Japón
- Instituto de Biomedicina de Sevilla (IBiS) and Departamento de Anatomía Patológica, Hospital Universitario Virgen del Rocío, Sevilla, E-41013, Spain
| | - Maria Tortolero
- Departamento de Microbiología, Facultad de Biología, Universidad de Sevilla, Sevilla, E-41012, Spain
| | - Francisco Romero
- Departamento de Microbiología, Facultad de Biología, Universidad de Sevilla, Sevilla, E-41012, Spain.
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13
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Moreno-Cabezuelo JÁ, Gómez-Baena G, Díez J, García-Fernández JM. Integrated Proteomic and Metabolomic Analyses Show Differential Effects of Glucose Availability in Marine Synechococcus and Prochlorococcus. Microbiol Spectr 2023; 11:e0327522. [PMID: 36722960 PMCID: PMC10100731 DOI: 10.1128/spectrum.03275-22] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Accepted: 12/29/2022] [Indexed: 02/02/2023] Open
Abstract
We compared changes induced by the addition of 100 nM and 5 mM glucose on the proteome and metabolome complements in Synechococcus sp. strains WH8102, WH7803, and BL107 and Prochlorococcus sp. strains MED4, SS120, and MIT9313, grown either under standard light conditions or in darkness. Our results suggested that glucose is metabolized by these cyanobacteria, using primarily the oxidative pentoses and Calvin pathways, while no proof was found for the involvement of the Entner-Doudoroff pathway in this process. We observed differences in the effects of glucose availability, both between genera and between Prochlorococcus MED4 and SS120 strains, which might be related to their specific adaptations to the environment. We found evidence for fermentation in Prochlorococcus sp. strain SS120 and Synechococcus sp. strain WH8102 after 5 mM glucose addition. Our results additionally suggested that marine cyanobacteria can detect nanomolar glucose concentrations in the environment and that glucose might be used to sustain metabolism under darkness. Furthermore, the KaiB and KaiC proteins were also affected in Synechococcus sp. WH8102, pointing to a direct link between glucose assimilation and circadian rhythms in marine cyanobacteria. In conclusion, our study provides a wide overview on the metabolic effects induced by glucose availability in representative strains of the diverse marine picocyanobacteria, providing further evidence for the importance of mixotrophy in marine picocyanobacteria. IMPORTANCE Glucose uptake by marine picocyanobacteria has been previously described and strongly suggests they are mixotrophic organisms (capable of using energy from the sun to make organic matter, but also to directly use organic matter from the environment when available). However, a detailed analysis of the effects of glucose addition on the proteome and metabolome of these microorganisms had not been carried out. Here, we analyzed three Prochlorococcus sp. and three Synechococcus sp. strains which were representative of several marine picocyanobacterial clades. We observed differential features in the effects of glucose availability, depending on both the genus and strain; our study illuminated the strategies utilized by these organisms to metabolize glucose and showed unexpected links to other pathways, such as circadian regulation. Furthermore, we found glucose addition had profound effects in the microbiome, favoring the growth of coexisting heterotrophic bacteria.
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Affiliation(s)
- José Ángel Moreno-Cabezuelo
- Departamento de Bioquímica y Biología Molecular-Campus de Excelencia Agroalimentaria CEIA3, Universidad de Córdoba, Cordoba, Spain
| | - Guadalupe Gómez-Baena
- Departamento de Bioquímica y Biología Molecular-Campus de Excelencia Agroalimentaria CEIA3, Universidad de Córdoba, Cordoba, Spain
| | - Jesús Díez
- Departamento de Bioquímica y Biología Molecular-Campus de Excelencia Agroalimentaria CEIA3, Universidad de Córdoba, Cordoba, Spain
| | - José Manuel García-Fernández
- Departamento de Bioquímica y Biología Molecular-Campus de Excelencia Agroalimentaria CEIA3, Universidad de Córdoba, Cordoba, Spain
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14
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Escobedo P, Fernández-Ramos MD, López-Ruiz N, Moyano-Rodríguez O, Martínez-Olmos A, Pérez de Vargas-Sansalvador IM, Carvajal MA, Capitán-Vallvey LF, Palma AJ. Smart facemask for wireless CO 2 monitoring. Nat Commun 2022; 13:72. [PMID: 35013232 PMCID: PMC8748626 DOI: 10.1038/s41467-021-27733-3] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 12/03/2021] [Indexed: 11/09/2022] Open
Abstract
The use of facemasks by the general population is recommended worldwide to prevent the spread of SARS-CoV-2. Despite the evidence in favour of facemasks to reduce community transmission, there is also agreement on the potential adverse effects of their prolonged usage, mainly caused by CO2 rebreathing. Herein we report the development of a sensing platform for gaseous CO2 real-time determination inside FFP2 facemasks. The system consists of an opto-chemical sensor combined with a flexible, battery-less, near-field-enabled tag with resolution and limit of detection of 103 and 140 ppm respectively, and sensor lifetime of 8 h, which is comparable with recommended FFP2 facemask usage times. We include a custom smartphone application for wireless powering, data processing, alert management, results displaying and sharing. Through performance tests during daily activity and exercise monitoring, we demonstrate its utility for non-invasive, wearable health assessment and its potential applicability for preclinical research and diagnostics.
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Grants
- B-FQM-243-UGR18 Consejería de Economía, Innovación, Ciencia y Empleo, Junta de Andalucía (Ministry of Economy, Innovation, Science and Employment, Government of Andalucia)
- P18-RT-2961 Consejería de Economía, Innovación, Ciencia y Empleo, Junta de Andalucía (Ministry of Economy, Innovation, Science and Employment, Government of Andalucia)
- DOC_00520 Consejería de Economía, Innovación, Ciencia y Empleo, Junta de Andalucía (Ministry of Economy, Innovation, Science and Employment, Government of Andalucia)
- EC | European Regional Development Fund (Europski Fond za Regionalni Razvoj)
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Affiliation(s)
- P Escobedo
- ECsens, CITIC-UGR, Department of Electronics and Computer Technology, University of Granada, Granada, Spain
- Unit of Excellence in Chemistry Applied to Biomedicine and the Environment of the University of Granada, Granada, Spain
| | - M D Fernández-Ramos
- Unit of Excellence in Chemistry Applied to Biomedicine and the Environment of the University of Granada, Granada, Spain
- ECsens, Department of Analytical Chemistry, University of Granada, 18071, Granada, Spain
| | - N López-Ruiz
- ECsens, CITIC-UGR, Department of Electronics and Computer Technology, University of Granada, Granada, Spain
- Unit of Excellence in Chemistry Applied to Biomedicine and the Environment of the University of Granada, Granada, Spain
| | - O Moyano-Rodríguez
- ECsens, Department of Analytical Chemistry, University of Granada, 18071, Granada, Spain
| | - A Martínez-Olmos
- ECsens, CITIC-UGR, Department of Electronics and Computer Technology, University of Granada, Granada, Spain
- Unit of Excellence in Chemistry Applied to Biomedicine and the Environment of the University of Granada, Granada, Spain
| | - I M Pérez de Vargas-Sansalvador
- Unit of Excellence in Chemistry Applied to Biomedicine and the Environment of the University of Granada, Granada, Spain
- ECsens, Department of Analytical Chemistry, University of Granada, 18071, Granada, Spain
| | - M A Carvajal
- ECsens, CITIC-UGR, Department of Electronics and Computer Technology, University of Granada, Granada, Spain
- Unit of Excellence in Chemistry Applied to Biomedicine and the Environment of the University of Granada, Granada, Spain
- Sport and Health University Research Institute (iMUDS), University of Granada, 18071, Granada, Spain
| | - L F Capitán-Vallvey
- Unit of Excellence in Chemistry Applied to Biomedicine and the Environment of the University of Granada, Granada, Spain
- ECsens, Department of Analytical Chemistry, University of Granada, 18071, Granada, Spain
| | - A J Palma
- ECsens, CITIC-UGR, Department of Electronics and Computer Technology, University of Granada, Granada, Spain.
- Unit of Excellence in Chemistry Applied to Biomedicine and the Environment of the University of Granada, Granada, Spain.
- Sport and Health University Research Institute (iMUDS), University of Granada, 18071, Granada, Spain.
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15
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Alvarez-Vergara MI, Rosales-Nieves AE, March-Diaz R, Rodriguez-Perinan G, Lara-Ureña N, Ortega-de San Luis C, Sanchez-Garcia MA, Martin-Bornez M, Gómez-Gálvez P, Vicente-Munuera P, Fernandez-Gomez B, Marchena MA, Bullones-Bolanos AS, Davila JC, Gonzalez-Martinez R, Trillo-Contreras JL, Sanchez-Hidalgo AC, Del Toro R, Scholl FG, Herrera E, Trepel M, Körbelin J, Escudero LM, Villadiego J, Echevarria M, de Castro F, Gutierrez A, Rabano A, Vitorica J, Pascual A. Non-productive angiogenesis disassembles Aß plaque-associated blood vessels. Nat Commun 2021; 12:3098. [PMID: 34035282 PMCID: PMC8149638 DOI: 10.1038/s41467-021-23337-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Accepted: 04/20/2021] [Indexed: 01/05/2023] Open
Abstract
The human Alzheimer's disease (AD) brain accumulates angiogenic markers but paradoxically, the cerebral microvasculature is reduced around Aß plaques. Here we demonstrate that angiogenesis is started near Aß plaques in both AD mouse models and human AD samples. However, endothelial cells express the molecular signature of non-productive angiogenesis (NPA) and accumulate, around Aß plaques, a tip cell marker and IB4 reactive vascular anomalies with reduced NOTCH activity. Notably, NPA induction by endothelial loss of presenilin, whose mutations cause familial AD and which activity has been shown to decrease with age, produced a similar vascular phenotype in the absence of Aß pathology. We also show that Aß plaque-associated NPA locally disassembles blood vessels, leaving behind vascular scars, and that microglial phagocytosis contributes to the local loss of endothelial cells. These results define the role of NPA and microglia in local blood vessel disassembly and highlight the vascular component of presenilin loss of function in AD.
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Affiliation(s)
- Maria I Alvarez-Vergara
- Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocio/CSIC/Universidad de Sevilla, Seville, Spain
| | - Alicia E Rosales-Nieves
- Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocio/CSIC/Universidad de Sevilla, Seville, Spain
| | - Rosana March-Diaz
- Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocio/CSIC/Universidad de Sevilla, Seville, Spain
| | - Guiomar Rodriguez-Perinan
- Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocio/CSIC/Universidad de Sevilla, Seville, Spain
| | - Nieves Lara-Ureña
- Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocio/CSIC/Universidad de Sevilla, Seville, Spain
| | - Clara Ortega-de San Luis
- Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocio/CSIC/Universidad de Sevilla, Seville, Spain
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College of Dublin, D2, Dublin, Ireland
| | - Manuel A Sanchez-Garcia
- Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocio/CSIC/Universidad de Sevilla, Seville, Spain
- Centre for Inflammation Research, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK
| | - Miguel Martin-Bornez
- Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocio/CSIC/Universidad de Sevilla, Seville, Spain
| | - Pedro Gómez-Gálvez
- Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocio/CSIC/Universidad de Sevilla, Seville, Spain
- Department of Biología Celular, Universidad de Sevilla, Seville, Spain
- Centro de Investigacion Biomedica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
| | - Pablo Vicente-Munuera
- Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocio/CSIC/Universidad de Sevilla, Seville, Spain
- Department of Biología Celular, Universidad de Sevilla, Seville, Spain
- Centro de Investigacion Biomedica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
| | | | - Miguel A Marchena
- Grupo de Neurobiología del Desarrollo-GNDe, Instituto Cajal-CSIC, Madrid, Spain
- Departamento de Medicina, Facultad de Ciencias, Biomédicas y de la Salud, Universidad Europea de Madrid, Villaviciosa de Odón, Spain
| | - Andrea S Bullones-Bolanos
- Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocio/CSIC/Universidad de Sevilla, Seville, Spain
| | - Jose C Davila
- Centro de Investigacion Biomedica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
- Department of Biologia Celular, Genetica y Fisiologia, Facultad de Ciencias, Instituto de Investigacion Biomedica de Malaga (IBIMA), Universidad de Malaga, Malaga, Spain
| | - Rocio Gonzalez-Martinez
- Instituto de Neurociencias de Alicante, Consejo Superior de Investigaciones Científicas-Universidad Miguel Hernández (CSIC-UMH), Alicante, Spain
| | - Jose L Trillo-Contreras
- Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocio/CSIC/Universidad de Sevilla, Seville, Spain
- Department of Fisiología Médica y Biofisica, Universidad de Sevilla, Seville, Spain
| | - Ana C Sanchez-Hidalgo
- Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocio/CSIC/Universidad de Sevilla, Seville, Spain
- Department of Fisiología Médica y Biofisica, Universidad de Sevilla, Seville, Spain
| | - Raquel Del Toro
- Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocio/CSIC/Universidad de Sevilla, Seville, Spain
- Department of Fisiología Médica y Biofisica, Universidad de Sevilla, Seville, Spain
- Centro de Investigacion Biomedica en Red de Enfermedades Cardiovasculares (CIBER-CV), Madrid, Spain
| | - Francisco G Scholl
- Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocio/CSIC/Universidad de Sevilla, Seville, Spain
- Department of Fisiología Médica y Biofisica, Universidad de Sevilla, Seville, Spain
| | - Eloisa Herrera
- Instituto de Neurociencias de Alicante, Consejo Superior de Investigaciones Científicas-Universidad Miguel Hernández (CSIC-UMH), Alicante, Spain
| | - Martin Trepel
- Augsburg Medical Center, Department of Hematology and Oncology, Augsburg, Germany
| | - Jakob Körbelin
- Section of Pneumology, Department of Oncology, Hematology and Stem Cell Transplantation, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Luis M Escudero
- Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocio/CSIC/Universidad de Sevilla, Seville, Spain
- Department of Biología Celular, Universidad de Sevilla, Seville, Spain
- Centro de Investigacion Biomedica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
| | - Javier Villadiego
- Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocio/CSIC/Universidad de Sevilla, Seville, Spain
- Centro de Investigacion Biomedica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
- Department of Fisiología Médica y Biofisica, Universidad de Sevilla, Seville, Spain
| | - Miriam Echevarria
- Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocio/CSIC/Universidad de Sevilla, Seville, Spain
- Centro de Investigacion Biomedica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
- Department of Fisiología Médica y Biofisica, Universidad de Sevilla, Seville, Spain
| | - Fernando de Castro
- Grupo de Neurobiología del Desarrollo-GNDe, Instituto Cajal-CSIC, Madrid, Spain
| | - Antonia Gutierrez
- Centro de Investigacion Biomedica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
- Department of Biologia Celular, Genetica y Fisiologia, Facultad de Ciencias, Instituto de Investigacion Biomedica de Malaga (IBIMA), Universidad de Malaga, Malaga, Spain
| | | | - Javier Vitorica
- Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocio/CSIC/Universidad de Sevilla, Seville, Spain
- Centro de Investigacion Biomedica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
- Department of Bioquimica y Biologia Molecular, Facultad de Farmacia, Universidad de Sevilla, Seville, Spain
| | - Alberto Pascual
- Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocio/CSIC/Universidad de Sevilla, Seville, Spain.
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16
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Abstract
The current COVID-19 pandemic has impacted millions of people and the global economy. Tourism has been one the most affected economic sectors because of the mobility restrictions established by governments and uncoordinated actions from origin and destination regions. The coordination of restrictions and reopening policies could help control the spread of virus and enhance economies, but this is not an easy endeavor since touristic companies, citizens, and local governments have conflicting interests. We propose an evolutionary game model that reflects a collective risk dilemma behind these decisions. To this aim, we represent regions as players, organized in groups; and consider the perceived risk as a strict lock-down and null economic activity. The costs for regions when restricting their mobility are heterogeneous, given that the dependence on tourism of each region is diverse. Our analysis shows that, for both large populations and the EU NUTS2 case study, the existence of heterogeneous costs enhances global agreements. Furthermore, the decision on how to group regions to maximize the regions' agreement of the population is a relevant issue for decision makers to consider. We find out that a layout of groups based on similar costs of cooperation boosts the regions' agreements and avoid the risk of having a total lock-down and a negligible tourism activity. These findings can guide policy makers to facilitate agreements among regions to maximize the tourism recovery.
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Grants
- A-TIC-284-UGR18 Consejería de Economía, Innovación, Ciencia y Empleo, Junta de Andalucía (Ministry of Economy, Innovation, Science and Employment, Government of Andalucia)
- PGC2018-101216-B-I00 Ministerio de Economía y Competitividad (Ministry of Economy and Competitiveness)
- P18-TP-4475 Consejería de Economía, Innovación, Ciencia y Empleo, Junta de Andalucía (Ministry of Economy, Innovation, Science and Employment, Government of Andalucia)
- COVID-19-04 Universidad de Las Palmas de Gran Canaria (University of Las Palmas de Gran Canaria)
- COVID-19-04 Universidad de Las Palmas de Gran Canaria (University of Las Palmas de Gran Canaria)
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Affiliation(s)
- Manuel Chica
- Andalusian Research Institute DaSCI "Data Science and Computational Intelligence", University of Granada, 18071, Granada, Spain.
- School of Electrical Engineering and Computing, The University of Newcastle, Callaghan, NSW, 2308, Australia.
| | - Juan M Hernández
- Department of Quantitative Methods in Economics and Management, University of Las Palmas de Gran Canaria, Las Palmas, 35017, Spain
- TIDES Institute for Sustainable Tourism and Economic Development, University of Las Palmas de Gran Canaria, Las Palmas, 35017, Spain
| | - Jacques Bulchand-Gidumal
- TIDES Institute for Sustainable Tourism and Economic Development, University of Las Palmas de Gran Canaria, Las Palmas, 35017, Spain
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17
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Guerrero-Martínez JA, Ceballos-Chávez M, Koehler F, Peiró S, Reyes JC. TGFβ promotes widespread enhancer chromatin opening and operates on genomic regulatory domains. Nat Commun 2020; 11:6196. [PMID: 33273453 PMCID: PMC7713251 DOI: 10.1038/s41467-020-19877-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Accepted: 11/05/2020] [Indexed: 02/07/2023] Open
Abstract
The Transforming Growth Factor-β (TGFβ) signaling pathway controls transcription by regulating enhancer activity. How TGFβ-regulated enhancers are selected and what chromatin changes are associated with TGFβ-dependent enhancers regulation are still unclear. Here we report that TGFβ treatment triggers fast and widespread increase in chromatin accessibility in about 80% of the enhancers of normal mouse mammary epithelial-gland cells, irrespective of whether they are activated, repressed or not regulated by TGFβ. This enhancer opening depends on both the canonical and non-canonical TGFβ pathways. Most TGFβ-regulated genes are located around enhancers regulated in the same way, often creating domains of several co-regulated genes that we term TGFβ regulatory domains (TRD). CRISPR-mediated inactivation of enhancers within TRDs impairs TGFβ-dependent regulation of all co-regulated genes, demonstrating that enhancer targeting is more promiscuous than previously anticipated. The area of TRD influence is restricted by topologically associating domains (TADs) borders, causing a bias towards co-regulation within TADs.
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Affiliation(s)
- Jose A Guerrero-Martínez
- Centro Andaluz de Biología Molecular y Medicina Regenerativa-CABIMER, Consejo Superior de Investigaciones Científicas-Universidad de Sevilla-Universidad Pablo de Olavide (CSIC-USE-UPO), Avenida Americo Vespucio 24, 41092, Seville, Spain
| | - María Ceballos-Chávez
- Centro Andaluz de Biología Molecular y Medicina Regenerativa-CABIMER, Consejo Superior de Investigaciones Científicas-Universidad de Sevilla-Universidad Pablo de Olavide (CSIC-USE-UPO), Avenida Americo Vespucio 24, 41092, Seville, Spain
| | - Florian Koehler
- Division of Epigenetics, DKFZ-ZMBH Alliance, German Cancer Research Center, Heidelberg, Germany
- Faculty of Biosciences, Heidelberg University, Heidelberg, Germany
| | - Sandra Peiró
- Vall d'Hebron Institute of Oncology (VHIO), 08035, Barcelona, Spain
| | - Jose C Reyes
- Centro Andaluz de Biología Molecular y Medicina Regenerativa-CABIMER, Consejo Superior de Investigaciones Científicas-Universidad de Sevilla-Universidad Pablo de Olavide (CSIC-USE-UPO), Avenida Americo Vespucio 24, 41092, Seville, Spain.
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18
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Begines B, Alcudia A, Aguilera-Velazquez R, Martinez G, He Y, Trindade GF, Wildman R, Sayagues MJ, Jimenez-Ruiz A, Prado-Gotor R. Design of highly stabilized nanocomposite inks based on biodegradable polymer-matrix and gold nanoparticles for Inkjet Printing. Sci Rep 2019; 9:16097. [PMID: 31695064 PMCID: PMC6834569 DOI: 10.1038/s41598-019-52314-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Accepted: 10/10/2019] [Indexed: 11/15/2022] Open
Abstract
Nowadays there is a worldwide growing interest in the Inkjet Printing technology owing to its potentially high levels of geometrical complexity, personalization and resolution. There is also social concern about usage, disposal and accumulation of plastic materials. In this work, it is shown that sugar-based biodegradable polyurethane polymers exhibit outstanding properties as polymer-matrix for gold nanoparticles composites. These materials could reach exceptional stabilization levels, and demonstrated potential as novel robust inks for Inkjet based Printing. Furthermore, a physical comparison among different polymers is discussed based on stability and printability experiments to search for the best ink candidate. The University of Seville logo was printed by employing those inks, and the presence of gold was confirmed by ToF-SIMS. This approach has the potential to open new routes and applications for fabrication of enhanced biomedical nanometallic-sensors using stabilized AuNP.
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Affiliation(s)
- Belen Begines
- Department of Organic and Medicinal Chemistry, School of Pharmacy, University of Seville, Seville, 41012, Spain
| | - Ana Alcudia
- Department of Organic and Medicinal Chemistry, School of Pharmacy, University of Seville, Seville, 41012, Spain
| | - Raul Aguilera-Velazquez
- Department of Organic and Medicinal Chemistry, School of Pharmacy, University of Seville, Seville, 41012, Spain
| | - Guillermo Martinez
- Department of Organic and Medicinal Chemistry, School of Pharmacy, University of Seville, Seville, 41012, Spain
| | - Yinfeng He
- Centre for Additive Manufacturing, Faculty of Engineering, University of Nottingham, Nottingham, NG7 2RD, United Kingdom
| | - Gustavo F Trindade
- Centre for Additive Manufacturing, Faculty of Engineering, University of Nottingham, Nottingham, NG7 2RD, United Kingdom
- Material Science Institute of Seville, CSIC/US, Seville, 41092, Spain
| | - Ricky Wildman
- Centre for Additive Manufacturing, Faculty of Engineering, University of Nottingham, Nottingham, NG7 2RD, United Kingdom
| | | | - Aila Jimenez-Ruiz
- Department of Physical Chemistry, School of Pharmacy, University of Seville, Seville, 41012, Spain.
| | - Rafael Prado-Gotor
- Department of Physical Chemistry, School of Pharmacy, University of Seville, Seville, 41012, Spain.
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19
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Ceausu A, Rodríguez-Gallego E, Peraire J, López-Dupla M, Domingo P, Viladés C, Vidal-Gonzalez J, Peraire M, Perpiñán C, Pacheco YM, Veloso S, Alba V, Vargas M, Castellano AJ, Ruiz-Mateos E, Mallolas J, Vidal F, Rull A. IL-7/IL-7R gene variants impact circulating IL-7/IL-7R homeostasis and ART-associated immune recovery status. Sci Rep 2019; 9:15722. [PMID: 31673011 PMCID: PMC6823538 DOI: 10.1038/s41598-019-52025-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Accepted: 10/11/2019] [Indexed: 11/09/2022] Open
Abstract
A relationship between polymorphisms in genes encoding interleukin 7 (IL-7) and its cellular receptor (IL-7R) and antiretroviral therapy (ART)-associated immune recovery in HIV subjects has been previously reported. However, details of this relationship remain unclear, and the association of these polymorphisms with circulating IL-7/IL-7R levels is scarce. Here, we explored whether IL-7/IL-7R axis was associated with quantitative CD4+ T-cell recovery in HIV-infected subjects. IL-7/IL-7R polymorphisms were assessed by genotyping, and multiple inheritance models were used to estimate both, their association with low pre-ART CD4+ T-cell counts and incomplete immune recovery status after 48 weeks of suppressive ART. Integrated data from genetic variants association and soluble plasma IL-7/IL-7R quantification suggest that IL-7/IL-7R genotype expression could alter the homeostatic balance between soluble and membrane-bound receptors. The haplotype analyses indicates that allele combinations impacts pre-ART circulating CD4+ T-cell counts, immune recovery status and the absolute increment of CD4+ T-cell counts. The knowledge about how IL-7/IL-7R axis is related to quantitative CD4+ T-cell recovery and immune recovery status after initiating ART could be useful regarding T-cell reservoirs investigations in HIV subjects.
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Affiliation(s)
- Andra Ceausu
- Hospital Universitari de Tarragona Joan XXIII, IISPV, Universitat Rovira i Virgili, Tarragona, Spain
| | - Esther Rodríguez-Gallego
- Hospital Universitari de Tarragona Joan XXIII, IISPV, Universitat Rovira i Virgili, Tarragona, Spain
| | - Joaquim Peraire
- Hospital Universitari de Tarragona Joan XXIII, IISPV, Universitat Rovira i Virgili, Tarragona, Spain
| | - Miguel López-Dupla
- Hospital Universitari de Tarragona Joan XXIII, IISPV, Universitat Rovira i Virgili, Tarragona, Spain
| | - Pere Domingo
- Infectious Diseases Unit, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - Consuelo Viladés
- Hospital Universitari de Tarragona Joan XXIII, IISPV, Universitat Rovira i Virgili, Tarragona, Spain
| | - Judit Vidal-Gonzalez
- Universitat de Barcelona, Barcelona, Spain
- Servei de Medicina Interna-Hepatologia, Hospital Universitari de la Vall d'Hebron, VHIR, Barcelona, Spain
| | - Maria Peraire
- Universitat Rovira i Virgili, Tarragona, Spain
- Hospital Universitari Son Espases, Palma de Mallorca, Spain
| | - Carles Perpiñán
- Universitat Rovira i Virgili, Tarragona, Spain
- Current address: Atenció Primària ICS, Cap Sant Pere, Reus, Spain
| | - Yolanda María Pacheco
- Laboratory of Immunology, Institute of Biomedicine of Seville, IBiS, UGC Clinical Laboratories, Virgen del Rocío University Hospital/CSIC/University of Seville, Seville, Spain
| | - Sergi Veloso
- Hospital Universitari de Tarragona Joan XXIII, IISPV, Universitat Rovira i Virgili, Tarragona, Spain
| | - Verónica Alba
- Hospital Universitari de Tarragona Joan XXIII, IISPV, Universitat Rovira i Virgili, Tarragona, Spain
| | - Montserrat Vargas
- Hospital Universitari de Tarragona Joan XXIII, IISPV, Universitat Rovira i Virgili, Tarragona, Spain
| | - Alfonso J Castellano
- Hospital Universitari de Tarragona Joan XXIII, IISPV, Universitat Rovira i Virgili, Tarragona, Spain
| | - Ezequiel Ruiz-Mateos
- Clinic Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville, Virgen del Rocío University Hospital/CSIC/University of Seville, Seville, Spain
| | - Josep Mallolas
- HIV Unit. Infectious Diseases Service, Hospital Clinic, Universitat de Barcelona, Barcelona, Spain
| | - Francesc Vidal
- Hospital Universitari de Tarragona Joan XXIII, IISPV, Universitat Rovira i Virgili, Tarragona, Spain.
| | - Anna Rull
- Hospital Universitari de Tarragona Joan XXIII, IISPV, Universitat Rovira i Virgili, Tarragona, Spain
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