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Nicolás-Morala J, Alonso-Juarranz M, Barahona A, Terrén S, Cabezas S, Falahat F, Gilaberte Y, Gonzalez S, Juarranz A, Mascaraque M. Comparative response to PDT with methyl-aminolevulinate and temoporfin in cutaneous and oral squamous cell carcinoma cells. Sci Rep 2024; 14:7025. [PMID: 38528037 DOI: 10.1038/s41598-024-57624-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 03/20/2024] [Indexed: 03/27/2024] Open
Abstract
Cutaneous and Head and Neck squamous cell carcinoma (CSCC, HNSCC) are among the most prevalent cancers. Both types of cancer can be treated with photodynamic therapy (PDT) by using the photosensitizer Temoporfin in HNSCC and the prodrug methyl-aminolevulinate (MAL) in CSCC. However, PDT is not always effective. Therefore, it is mandatory to correctly approach the therapy according to the characteristics of the tumour cells. For this reason, we have used cell lines of CSCC (A431 and SCC13) and HNSCC (HN5 and SCC9). The results obtained indicated that the better response to MAL-PDT was related to its localization in the plasma membrane (A431 and HN5 cells). However, with Temoporfin all cell lines showed lysosome localization, even the most sensitive ones (HN5). The expression of mesenchymal markers and migratory capacity was greater in HNSCC lines compared to CSCC, but no correlation with PDT response was observed. The translocation to the nucleus of β-catenin and GSK3β and the activation of NF-κβ is related to the poor response to PDT in the HNSCC lines. Therefore, we propose that intracellular localization of GSK3β could be a good marker of response to PDT in HNSCC. Although the molecular mechanism of response to PDT needs further elucidation, this work shows that the most MAL-resistant line of CSCC is more sensitive to Temoporfin.
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Affiliation(s)
- J Nicolás-Morala
- Department of Biology, Universidad Autónoma de Madrid, Madrid, Spain
- Department of Experimental Dermatology and Skin Biology, Instituto Ramón y Cajal de Investigación Sanitaria, IRYCIS, 28034, Madrid, Spain
| | - M Alonso-Juarranz
- Oral and Maxillofacial Surgery Service, Hospital Clínico San Carlos, 28040, Madrid, Spain
- Surgery Department, Faculty of Medicine, Universidad Complutense, 28040, Madrid, Spain
| | - A Barahona
- Department of Biology, Universidad Autónoma de Madrid, Madrid, Spain
| | - S Terrén
- Department of Biology, Universidad Autónoma de Madrid, Madrid, Spain
| | - S Cabezas
- Oncology Service, Hospital Clínico San Carlos, 28040, Madrid, Spain
| | - F Falahat
- Oral and Maxillofacial Surgery Service, Hospital Clínico San Carlos, 28040, Madrid, Spain
- Surgery Department, Faculty of Medicine, Universidad Complutense, 28040, Madrid, Spain
| | - Y Gilaberte
- Department of Dermatology, Miguel Servet University Hospital, Instituto Investigación Sanitaria (IIS), Zaragoza, Aragón, Spain
| | - S Gonzalez
- Department of Experimental Dermatology and Skin Biology, Instituto Ramón y Cajal de Investigación Sanitaria, IRYCIS, 28034, Madrid, Spain
- Department of Medicine and Medical Specialties, Universidad de Alcalá, Madrid, Spain
| | - A Juarranz
- Department of Biology, Universidad Autónoma de Madrid, Madrid, Spain.
- Department of Experimental Dermatology and Skin Biology, Instituto Ramón y Cajal de Investigación Sanitaria, IRYCIS, 28034, Madrid, Spain.
| | - M Mascaraque
- Department of Biology, Universidad Autónoma de Madrid, Madrid, Spain.
- Department of Experimental Dermatology and Skin Biology, Instituto Ramón y Cajal de Investigación Sanitaria, IRYCIS, 28034, Madrid, Spain.
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2
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Baos R, Cabezas S, González MJ, Jiménez B, Delibes M. Eurasian otter (Lutra lutra) as sentinel species for the long-term biomonitoring of the Guadiamar River after the Aznalcóllar mine spill. Sci Total Environ 2022; 802:149669. [PMID: 34525684 DOI: 10.1016/j.scitotenv.2021.149669] [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: 05/20/2021] [Revised: 07/29/2021] [Accepted: 08/10/2021] [Indexed: 06/13/2023]
Abstract
Accidents at mines involving stored tailings have produced catastrophic environmental damage. In April 1998 the dam of the Aznalcóllar mine tailings pond in the surroundings of the Doñana National Park (southwestern Spain) broke, discharging into the Guadiamar River more than 6 million m3 of toxic mud and acidic water with high concentrations of heavy metals and arsenic. We used the Eurasian otter (Lutra lutra) as sentinel species to assess the potential impact of the toxic spill on the river ecosystems and their recovery with time by studying the spatial and temporal variation (1999-2003, 2006) of selected trace element (Cu, Zn, Cd, Pb and As) concentrations in feces. Throughout the sampling period, the highest heavy metal and As levels were found in the most spill-affected reaches of the Guadiamar River (i.e., the Middle and, to a lesser extent, the Lower reaches), pointing out the mining accident as the main origin of the contamination. Overall, levels of trace elements decreased with the time elapsed since the toxic spill, except for Cd (F1,352 = 0.29, P = 0.59). However, rebounds for some elements (Pb, As, and Cu) were also observed, especially in the Middle and Lower reaches of the river, which might be attributed to the residual contamination in abiotic compartments and/or new inputs from industrial and agricultural activities in the nearby areas. Concentrations were relatively high when compared to those reported for both our reference area (Guadalete River) and other metal-polluted zones. We found that the estimated amounts of Pb and As ingested during the first years after the spill in the Guadiamar Middle reach would be high enough to cause reproductive issues. This could affect the local population recovery, although evidence on distribution range and numbers suggests otherwise, with thriving populations at regional scale. Our results support the role of otters as sentinel species for biomonitoring contaminants and thus to evaluate fluvial ecosystem health.
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Affiliation(s)
- Raquel Baos
- Department of Conservation Biology, Doñana Biological Station (EBD-CSIC), Seville, Spain.
| | - Sonia Cabezas
- Department of Biology, University of Saskatchewan, Saskatoon, Canada
| | - María José González
- Department of Instrumental Analysis and Environmental Chemistry, Institute of Organic Chemistry (IQOG-CSIC), Madrid, Spain
| | - Begoña Jiménez
- Department of Instrumental Analysis and Environmental Chemistry, Institute of Organic Chemistry (IQOG-CSIC), Madrid, Spain
| | - Miguel Delibes
- Department of Conservation Biology, Doñana Biological Station (EBD-CSIC), Seville, Spain
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3
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Gómez J, Morrissey CA, Cabezas S, Marchant TA, Clark RG. Phenotypic differences among wild passerine nestlings in relation to early-life rearing environment. CAN J ZOOL 2021. [DOI: 10.1139/cjz-2021-0058] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Subtle changes in stress physiology during critical developmental stages have been linked to long-term fitness; however, the biological processes and phenotypic responses to early-life rearing environments, such as anthropogenic land use conditions, have not been fully evaluated in insectivorous birds. We manipulated Tree Swallow (Tachycineta bicolor (Vieillot, 1808)) brood sizes at sites with contrasting agricultural land use to assess phenotypic changes in body condition and genetic and physiological biomarkers of stress during the sensitive nestling growth phase. We predicted that nestling swallows raised on cropland-dominated sites, especially those in enlarged broods, would have lower body condition, shorter telomeres, and higher feather corticosterone than nestlings raised in smaller broods at grassland sites. Body condition was highest among nestlings raised in reduced broods but was unrelated to land use. Telomere lengths tended to be shorter in nestlings from enlarged broods and at cropland sites. Corticosterone was not related to any factor. Locally abundant insect populations associated with wetlands may have dampened the effects and (or) parent swallows assumed higher costs of reproduction rather than passing these costs to nestlings. Results suggest that food or other environmental stressors could reduce fledgling survival via telomere shortening; a hypothesis that requires further investigation due to its potential importance to population viability in multiple declining aerial insectivore species.
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Affiliation(s)
| | - Christy A. Morrissey
- Department of Biology, University of Saskatchewan, Saskatoon, SK S7N 5C8, Canada
- School of Environment and Sustainability, University of Saskatchewan, Saskatoon, SK S7N 5C8, Canada
| | - Sonia Cabezas
- Department of Biology, University of Saskatchewan, Saskatoon, SK S7N 5C8, Canada
| | - Tracy A. Marchant
- Department of Biology, University of Saskatchewan, Saskatoon, SK S7N 5C8, Canada
| | - Robert G. Clark
- Department of Biology, University of Saskatchewan, Saskatoon, SK S7N 5C8, Canada
- Environment and Climate Change Canada, Prairie and Northern Wildlife Research Centre, Saskatoon, SK S7N 0X4, Canada
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Del Valle A, Acosta-Rivero N, Laborde RJ, Cruz-Leal Y, Cabezas S, Luzardo MC, Alvarez C, Labrada M, Rodríguez A, Rodríguez GL, Raymond J, Nogueira CV, Grubaugh D, Fernández LE, Higgins D, Lanio ME. Sticholysin II shows similar immunostimulatory properties to LLO stimulating dendritic cells and MHC-I restricted T cell responses of heterologous antigen. Toxicon 2021; 200:38-47. [PMID: 34237340 DOI: 10.1016/j.toxicon.2021.06.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Revised: 06/22/2021] [Accepted: 06/30/2021] [Indexed: 10/20/2022]
Abstract
Induction of CD8+ T cell responses against tumor cells and intracellular pathogens is an important goal of modern vaccinology. One approach of translational interest is the use of liposomes encapsulating pore-forming proteins (PFPs), such as Listeriolysin O (LLO), which has shown efficacy at priming strong and sustained CD8+ T cell responses. Recently, we have demonstrated that Sticholysin II (StII), a PFP from the sea anemone Stichodactyla helianthus, co-encapsulated into liposomes with ovalbumin (OVA) was able to stimulate, antigen presenting cells, antigen-specific CD8+ T cells and anti-tumor activity in mice. In the present study, we aimed to compare StII and LLO in terms of their abilities to stimulate dendritic cells and to induce major histocompatibility complex (MHC) class I restricted T cell responses against OVA. Interestingly, StII exhibited similar abilities to LLO in vitro of inducing dendritic cells maturation, as measured by increased expression of CD40, CD80, CD86 and MHC-class II molecules, and of stimulating OVA cross-presentation to a CD8+ T cell line. Remarkably, using an ex vivo Enzyme-Linked ImmunoSpot Assay (ELISPOT) to monitor gamma interferon (INF-γ) producing effector memory CD8+ T cells, liposomal formulations containing either StII or LLO induced comparable frequencies of OVA-specific INF-γ producing CD8+ T cells in mice that were sustained in time. However, StII-containing liposomes stimulated antigen-specific memory CD8+ T cells with a higher potential to secrete IFN-γ than liposomes encapsulating LLO. This StII immunostimulatory property further supports its use for the rational design of T cell vaccines against cancers and intracellular pathogens. In summary, this study indicates that StII has immunostimulatory properties similar to LLO, despite being evolutionarily distant PFPs.
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Affiliation(s)
- A Del Valle
- Center for Protein Studies, Faculty of Biology, Havana University (UH) and Lab UH-CIM, Cuba
| | - N Acosta-Rivero
- Center for Protein Studies, Faculty of Biology, Havana University (UH) and Lab UH-CIM, Cuba.
| | - R J Laborde
- Center for Protein Studies, Faculty of Biology, Havana University (UH) and Lab UH-CIM, Cuba
| | - Y Cruz-Leal
- Center for Protein Studies, Faculty of Biology, Havana University (UH) and Lab UH-CIM, Cuba
| | - S Cabezas
- Center for Protein Studies, Faculty of Biology, Havana University (UH) and Lab UH-CIM, Cuba
| | - M C Luzardo
- Center for Protein Studies, Faculty of Biology, Havana University (UH) and Lab UH-CIM, Cuba
| | - C Alvarez
- Center for Protein Studies, Faculty of Biology, Havana University (UH) and Lab UH-CIM, Cuba
| | - M Labrada
- Center of Molecular Immunology (CIM), Playa, La Habana, Cuba
| | - A Rodríguez
- Center of Molecular Immunology (CIM), Playa, La Habana, Cuba
| | - G L Rodríguez
- Center of Molecular Immunology (CIM), Playa, La Habana, Cuba
| | - J Raymond
- Center of Molecular Immunology (CIM), Playa, La Habana, Cuba
| | | | - D Grubaugh
- Harvard Medical School, Harvard University, USA
| | - L E Fernández
- Center of Molecular Immunology (CIM), Playa, La Habana, Cuba
| | - D Higgins
- Harvard Medical School, Harvard University, USA
| | - M E Lanio
- Center for Protein Studies, Faculty of Biology, Havana University (UH) and Lab UH-CIM, Cuba.
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Baños‐Villalba A, Carrete M, Tella JL, Blas J, Potti J, Camacho C, Diop MS, Marchant TA, Cabezas S, Edelaar P. Selection on individuals of introduced species starts before the actual introduction. Evol Appl 2021; 14:781-793. [PMID: 33767752 PMCID: PMC7980263 DOI: 10.1111/eva.13159] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 06/18/2020] [Revised: 09/27/2020] [Accepted: 10/01/2020] [Indexed: 11/28/2022] Open
Abstract
Biological invasion is a global problem with large negative impacts on ecosystems and human societies. When a species is introduced, individuals will first have to pass through the invasion stages of uptake and transport, before actual introduction in a non-native range. Selection is predicted to act during these earliest stages of biological invasion, potentially influencing the invasiveness and/or impact of introduced populations. Despite this potential impact of pre-introduction selection, empirical tests are virtually lacking. To test the hypothesis of pre-introduction selection, we followed the fate of individuals during capture, initial acclimation, and captivity in two bird species with several invasive populations originating from the international trade in wild-caught pets (the weavers Ploceus melanocephalus and Euplectes afer). We confirm that pre-introduction selection acts on a wide range of physiological, morphological, behavioral, and demographic traits (incl. sex, age, size of body/brain/bill, bill shape, body mass, corticosterone levels, and escape behavior); these are all traits which likely affect invasion success. Our study thus comprehensively demonstrates the existence of hitherto ignored selection acting before the actual introduction into non-native ranges. This could ultimately change the composition and functioning of introduced populations, and therefore warrants greater attention. More knowledge on pre-introduction selection also might provide novel targets for the management of invasive species, if pre-introduction filters can be adjusted to change the quality and/or quantity of individuals passing through such that invasion probability and/or impacts are reduced.
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Affiliation(s)
| | | | | | - Julio Blas
- Estación Biológica de Doñana‐CSICSevillaSpain
| | - Jaime Potti
- Estación Biológica de Doñana‐CSICSevillaSpain
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Palma A, Blas J, Tella JL, Cabezas S, Marchant TA, Carrete M. Differences in adrenocortical responses between urban and rural burrowing owls: poorly-known underlying mechanisms and their implications for conservation. Conserv Physiol 2020; 8:coaa054. [PMID: 32665848 PMCID: PMC7336563 DOI: 10.1093/conphys/coaa054] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2018] [Revised: 08/08/2019] [Accepted: 06/17/2020] [Indexed: 05/10/2023]
Abstract
The hypothalamus-pituitary-adrenal/interrenal (HPA) axis of vertebrates integrates external information and orchestrates responses to cope with energy-demanding and stressful events through changes in circulating glucocorticoid levels. Urbanization exposes animals to a wide variety of ever-changing stimuli caused by human activities that may affect local wildlife populations. Here, we empirically tested the hypothesis that urban and rural owls (Athene cunicularia) show different adrenocortical responses to stress, with urban individuals showing a reduced HPA-axis response compared to rural counterparts to cope with the high levels of human disturbance typical of urban areas. We applied a standard capture-restraint protocol to measure baseline levels and stress-induced corticosterone (CORT) responses. Urban and rural owls showed similar circulating baseline CORT levels. However, maximum CORT levels were attained earlier and were of lower magnitude in urban compared to rural owls, which showed a more pronounced and long-lasting response. Variability in CORT responses was also greater in rural owls and contained the narrower variability displayed by urban ones. These results suggest that only individuals expressing low-HPA-axis responses can thrive in cities, a pattern potentially mediated by three alternative and non-exclusive hypotheses: phenotypic plasticity, natural selection and matching habitat choice. Due to their different conservation implications, we recommend further research to properly understand wildlife responses to humans in an increasingly urbanized world.
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Affiliation(s)
- Antonio Palma
- Department of Conservation Biology, Estación Biológica de Doñana (EBD-CSIC), 41092 Seville, Spain
- Corresponding author: Department of Conservation Biology, Estación Biológica de Doñana (EBD-CSIC), 41092 Seville, Spain.
| | - Julio Blas
- Department of Conservation Biology, Estación Biológica de Doñana (EBD-CSIC), 41092 Seville, Spain
- Department of Biology, University of Saskatchewan, S7N 5E2 Saskatoon, Saskatchewan, Canada
| | - José L Tella
- Department of Conservation Biology, Estación Biológica de Doñana (EBD-CSIC), 41092 Seville, Spain
| | - Sonia Cabezas
- Department of Biology, University of Saskatchewan, S7N 5E2 Saskatoon, Saskatchewan, Canada
| | - Tracy A Marchant
- Department of Biology, University of Saskatchewan, S7N 5E2 Saskatoon, Saskatchewan, Canada
| | - Martina Carrete
- Department of Conservation Biology, Estación Biológica de Doñana (EBD-CSIC), 41092 Seville, Spain
- Departament of Physical, Chemical and Natural Systems, Universidad Pablo de Olavide (UPO), 41013 Seville, Spain
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Torres-Medina F, Cabezas S, Marchant TA, Wikelski M, Romero LM, Hau M, Carrete M, Tella JL, Blas J. Corticosterone implants produce stress-hyporesponsive birds. ACTA ACUST UNITED AC 2018; 221:jeb.173864. [PMID: 30111557 DOI: 10.1242/jeb.173864] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [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: 11/06/2017] [Accepted: 08/07/2018] [Indexed: 12/25/2022]
Abstract
In birds, the use of corticosterone (Cort) implants is a frequent tool aimed at simulating systemic elevations of this hormone and studying effects on biological traits (e.g. physiology, morphology, behavior). This manipulation may alter adrenocortical function, potentially changing both baseline (CortBAS) and stress-induced (CortSTRESS) plasma Cort levels. However, implant effects on the latter trait are rarely measured, disregarding downstream consequences of potentially altered stress responses. Here, we analyzed the effects of Cort implants on both CortBAS and CortSTRESS in nestling and adult European white storks, Ciconia ciconia In addition, we performed a review of 50 studies using Cort implants in birds during the last two decades to contextualize stork results, assess researchers' patterns of use and infer current study biases. High and low doses of Cort implants resulted in a decrease of both CortBAS (31-71% below controls) and CortSTRESS (63-79% below controls) in storks. Our literature review revealed that CortBAS generally increases (72% of experiments) whereas CortSTRESS decreases (78% of experiments) following implant treatment in birds. Our results challenge and expand the prevailing assumption that Cort implants increase circulating CortBAS levels because: (i) CortBAS levels show a quadratic association with implant dose across bird species, and decreased levels may occur at both high and low implant doses, and (ii) Cort implants also decrease CortSTRESS levels, thus producing stress-hyporesponsive phenotypes. It is time to work towards a better understanding of the effects of Cort implants on adrenocortical function, before addressing downstream links to variation in other biological traits.
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Affiliation(s)
- Fernando Torres-Medina
- Departamento de Biología de la Conservación, Estación Biológica de Doñana, Consejo Superior de Investigaciones Científicas (CSIC), 41092 Seville, Spain .,Department of Biology, University of Saskatchewan, Saskatoon, Saskatchewan, Canada, S7N 5E2
| | - Sonia Cabezas
- Departamento de Biología de la Conservación, Estación Biológica de Doñana, Consejo Superior de Investigaciones Científicas (CSIC), 41092 Seville, Spain.,Department of Biology, University of Saskatchewan, Saskatoon, Saskatchewan, Canada, S7N 5E2
| | - Tracy A Marchant
- Department of Biology, University of Saskatchewan, Saskatoon, Saskatchewan, Canada, S7N 5E2
| | - Martin Wikelski
- Department of Migration and Immuno-Ecology, Max Planck Institute for Ornithology, 78315 Radolfzell, Germany.,Department of Biology, University of Konstanz, Universitätsstrasse 10, 78464 Konstanz, Germany
| | | | - Michaela Hau
- Department of Biology, University of Konstanz, Universitätsstrasse 10, 78464 Konstanz, Germany.,Evolutionary Physiology Group. Max Planck Institute for Ornithology, Eberhard-Gwinner-Str., 82319 Seewiesen, Germany
| | - Martina Carrete
- Departamento de Biología de la Conservación, Estación Biológica de Doñana, Consejo Superior de Investigaciones Científicas (CSIC), 41092 Seville, Spain.,Departamento de Sistemas Físicos, Químicos y Naturales, Universidad Pablo de Olavide, 41013 Seville, Spain
| | - José L Tella
- Departamento de Biología de la Conservación, Estación Biológica de Doñana, Consejo Superior de Investigaciones Científicas (CSIC), 41092 Seville, Spain
| | - Julio Blas
- Departamento de Biología de la Conservación, Estación Biológica de Doñana, Consejo Superior de Investigaciones Científicas (CSIC), 41092 Seville, Spain .,Department of Biology, University of Saskatchewan, Saskatoon, Saskatchewan, Canada, S7N 5E2
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Gangoso L, Lambertucci SA, Cabezas S, Alarcón PAE, Wiemeyer GM, Sanchez‐Zapata JA, Blanco G, Hiraldo F, Donázar JA. Sex‐dependent spatial structure of telomere length in a wild long‐lived scavenger. Ecosphere 2016. [DOI: 10.1002/ecs2.1544] [Citation(s) in RCA: 11] [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: 12/24/2022] Open
Affiliation(s)
- Laura Gangoso
- Estación Biológica de Doñana CSIC C/Américo Vespucio s/n E‐41092 Sevilla Spain
| | - Sergio A. Lambertucci
- Grupo de Biología de la Conservación Laboratorio Ecotono INIBIOMA (CONICET‐National University of Comahue) Quintral 1250, Centro Regional Universitario Bariloche 8400 Bariloche Argentina
| | - Sonia Cabezas
- Estación Biológica de Doñana CSIC C/Américo Vespucio s/n E‐41092 Sevilla Spain
- University of Saskatchewan 72 Campus Drive SK S7N 5E2 Saskatoon Canada
| | - Pablo A. E. Alarcón
- Grupo de Biología de la Conservación Laboratorio Ecotono INIBIOMA (CONICET‐National University of Comahue) Quintral 1250, Centro Regional Universitario Bariloche 8400 Bariloche Argentina
- The Peregrine Fund 5668 West Flying Hawk Lane Boise Idaho 83709 USA
| | - Guillermo M. Wiemeyer
- The Peregrine Fund 5668 West Flying Hawk Lane Boise Idaho 83709 USA
- Jardín Zoológico de la Ciudad de Buenos Aires (CABA) Avenida Sarmiento and Avenida Las Heras CP1425 Buenos Aires Argentina
| | - José A. Sanchez‐Zapata
- University Miguel Hernández Avinguda de la Universitat d'Elx, s/n E‐03202 Alicante Spain
| | - Guillermo Blanco
- National Museum of Natural Sciences CSIC C/José Gutiérrez Abascal 2 E‐28006 Madrid Spain
| | - Fernando Hiraldo
- Estación Biológica de Doñana CSIC C/Américo Vespucio s/n E‐41092 Sevilla Spain
| | - José A. Donázar
- Estación Biológica de Doñana CSIC C/Américo Vespucio s/n E‐41092 Sevilla Spain
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López-Jiménez L, Blas J, Tanferna A, Cabezas S, Marchant T, Hiraldo F, Sergio F. Effects of Ontogeny, Diel Rhythms, and Environmental Variation on the Adrenocortical Physiology of Semialtricial Black Kites (Milvus migrans). Physiol Biochem Zool 2016; 89:213-24. [DOI: 10.1086/684966] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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López‐Jiménez L, Blas J, Tanferna A, Cabezas S, Marchant T, Hiraldo F, Sergio F. Ambient temperature, body condition and sibling rivalry explain feather corticosterone levels in developing black kites. Funct Ecol 2015. [DOI: 10.1111/1365-2435.12539] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Lidia López‐Jiménez
- Estación Biológica de Doñana Consejo Superior de Investigaciones Científicas (CSIC) C/Américo Vespucio Seville 41092 Spain
| | - Julio Blas
- Estación Biológica de Doñana Consejo Superior de Investigaciones Científicas (CSIC) C/Américo Vespucio Seville 41092 Spain
| | - Alessandro Tanferna
- Estación Biológica de Doñana Consejo Superior de Investigaciones Científicas (CSIC) C/Américo Vespucio Seville 41092 Spain
| | - Sonia Cabezas
- Estación Biológica de Doñana Consejo Superior de Investigaciones Científicas (CSIC) C/Américo Vespucio Seville 41092 Spain
| | - Tracy Marchant
- Department of Biology University of Saskatchewan SK S7N 5E2 Saskatoon Canada
| | - Fernando Hiraldo
- Estación Biológica de Doñana Consejo Superior de Investigaciones Científicas (CSIC) C/Américo Vespucio Seville 41092 Spain
| | - Fabrizio Sergio
- Estación Biológica de Doñana Consejo Superior de Investigaciones Científicas (CSIC) C/Américo Vespucio Seville 41092 Spain
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Kottwitz D, El Hadi H, El Amrani M, Cabezas S, Dehbi H, Nadifi S, Quessar A, Colomer D, Moumen A, Sefrioui ELH. Evaluation of a novel multiplex RT-qPCR assay for the quantification of leukemia-associated BCR-ABL1 translocation. Int J Hematol 2015; 102:335-41. [PMID: 26243622 DOI: 10.1007/s12185-015-1839-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2015] [Revised: 06/30/2015] [Accepted: 07/07/2015] [Indexed: 11/25/2022]
Abstract
Although monitoring of BCR-ABL1 translocation has become an established practice in the management of chronic myeloid leukemia (CML), the detection limit of the BCR-ABL1 transcripts needs more standardization. The aim of the present study was to evaluate the clinical performances of a novel assay for the quantification of BCR-ABL1 fusion transcripts (e13a2 and e14a2) and ABL1 in a single reaction. This assay is based on the real-time reverse transcription polymerase chain reaction (RT-qPCR) in multiplex format. In a retrospective comparative clinical study performed in a reference laboratory, RNA was extracted from 48 CML patient blood samples with various BCR-ABL1/ABL1 ratios and RT-qPCR was performed using either MAScIR assay or the RT-qPCR simplex reference assay used in routine clinical testing. The comparative clinical results showed high qualitative and quantitative concordance (correlation coefficient >0.95) between MAScIR and the reference assays. The present study illustrates the utility of MAScIR assay as a sensitive, rapid, and cost-effective quantitative device to monitor the BCR-ABL1 ratios by RT-qPCR on whole blood of diagnosed Philadelphia chromosome-positive (Ph+) leukemia patients. This test could be used as an aid in the assessment of molecular response to available treatments.
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MESH Headings
- Female
- Fusion Proteins, bcr-abl/blood
- Fusion Proteins, bcr-abl/genetics
- Humans
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/blood
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/genetics
- Male
- Multiplex Polymerase Chain Reaction/methods
- Philadelphia Chromosome
- RNA, Messenger/blood
- RNA, Messenger/genetics
- Retrospective Studies
- Reverse Transcriptase Polymerase Chain Reaction/methods
- Translocation, Genetic
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Affiliation(s)
- D Kottwitz
- MAScIR: Moroccan Foundation for Advanced Sciences, Innovation and Research, Medical Biotechnology Center, Rabat Design, Rue Mohamed El Jazouli, Madinat Al Irfane, 10100, Rabat, Morocco
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Cabezas S, Carrete M, Tella JL, Marchant TA, Bortolotti GR. Differences in acute stress responses between wild-caught and captive-bred birds: a physiological mechanism contributing to current avian invasions? Biol Invasions 2012. [DOI: 10.1007/s10530-012-0304-z] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Delibes M, Cabezas S, Jiménez B, González MJ. Animal decisions and conservation: the recolonization of a severely polluted river by the Eurasian otter. Anim Conserv 2009. [DOI: 10.1111/j.1469-1795.2009.00263.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Bortolotti GR, Marchant T, Blas J, Cabezas S. Tracking stress: localisation, deposition and stability of corticosterone in feathers. J Exp Biol 2009; 212:1477-82. [DOI: 10.1242/jeb.022152] [Citation(s) in RCA: 132] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
SUMMARY
How animals cope with stressors is an important determinant of their well being and fitness. Understanding what environmental perturbations are perceived as stressors, and quantifying how they are responded to, how often they occur and the negative consequences of exposure to glucocorticoids, has been problematic and limited to short-term physiological measures. By contrast, the quantification of corticosterone (CORT) in feathers represents a long-term, integrated measure of hypothalamic–pituitary–adrenal activity. In the present study, we show that by understanding how the hormone is deposited in feathers, in combination with specific sampling protocols, one can identify localised patterns of CORT deposition that reveal different temporal patterns of a bird's response to stressors. CORT in feathers appears to be stable over time, is resistant to heat exposure and is useful in determining both the overall exposure of the bird to the hormone over days or weeks, as well as identifying discrete, punctuated, stressful events. Variation in feather CORT can also be examined among individuals of a population at one point in time, as well as over years by using museum specimens. The ability to track stress over time allows for new questions to be asked about the health and ecology of birds and their environment.
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Affiliation(s)
- Gary R. Bortolotti
- Department of Biology, University of Saskatchewan, Saskatoon, Canada S7N 5E2
| | - Tracy Marchant
- Department of Biology, University of Saskatchewan, Saskatoon, Canada S7N 5E2
| | - Julio Blas
- Department of Biology, University of Saskatchewan, Saskatoon, Canada S7N 5E2
- Estación Biológica de Doñana (CSIC), 41092 Sevilla,Spain
| | - Sonia Cabezas
- Department of Biology, University of Saskatchewan, Saskatoon, Canada S7N 5E2
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Cabezas S, Blas J, Marchant TA, Moreno S. Physiological stress levels predict survival probabilities in wild rabbits. Horm Behav 2007; 51:313-20. [PMID: 17258747 DOI: 10.1016/j.yhbeh.2006.11.004] [Citation(s) in RCA: 129] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2006] [Revised: 11/15/2006] [Accepted: 11/15/2006] [Indexed: 11/26/2022]
Abstract
Among vertebrates, short-term elevations of glucocorticoid hormones (corticosterone or cortisol) facilitate a suite of physiological and behavioral changes aimed at overcoming environmental perturbations or other stressful events. However, chronically elevated glucocorticoids can have deleterious physiological consequences, and it is still unclear as to what constitutes an adaptive physiological response to long-term stress. In this study, we experimentally exposed European wild rabbits Oryctolagus cuniculus to a source of long-term stress (simulated through a 2- to 4-week period of captivity) and tested whether glucocorticoid physiology predicted two major components of rabbit fitness: body condition and survival probability. Following exposure to long-term stress, moderately elevated serum corticosterone and fecal glucocorticoid metabolites levels in the wild rabbits were negatively associated with body condition, but positively associated with subsequent survival upon release. Our results suggest that the cost of maintaining elevated corticosterone levels in terms of decreased body condition is balanced by the increased chance of survival upon release.
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Affiliation(s)
- Sonia Cabezas
- Department of Applied Biology, Estación Biológica de Doñana, Spanish Council for Scientific Research-CSIC, Avenida María Luisa s/n. E-41013, Sevilla, Spain.
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Moreno S, Beltrán JF, Cotilla I, Kuffner B, Laffite R, Jordán G, Ayala J, Quintero C, Jiménez A, Castro F, Cabezas S, Villafuerte R. Long-term decline of the European wild rabbit (Oryctolagus cuniculus) in south-western Spain. Wildl Res 2007. [DOI: 10.1071/wr06142] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The European wild rabbit (Oryctolagus cuniculus) is a species native to the Iberian Peninsula, where it was once extremely abundant. It is considered the most important prey item for the peninsula’s assemblage of Mediterranean vertebrate predators, which includes two endangered specialist rabbit feeders, the Spanish imperial eagle (Aquila adalberti) and the Iberian lynx (Lynx pardinus). However, rabbit population trends in Spain have not been accurately documented. In the present study, we analysed trends in a population of European rabbits monitored over 23 years in the Doñana National Park, home to one of the most diverse and densest predator communities in Europe. Rabbit abundance and population trends were estimated using roadside counts. Results show that the rabbit population declined sharply by ~60% during the first wave of epizootic rabbit hemorrhagic disease (RHD) in 1990. Since then, rabbit numbers have declined at a relatively constant rate and the species has become progressively scarcer in the area. The current population is less than 10% of that before the arrival of RHD. However, after the RHD epizootic we observed increasing intra-annual population recruitment. We hypothesise that density-dependent factors caused by enzootic viral diseases (myxomatosis, RHD) and higher predation of rabbits are the main factors preventing recovery of rabbit numbers. The effects of a decline in the prey species on the ecology of sympatric rabbit predators are discussed, and measures to improve ongoing rabbit conservation efforts are suggested.
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Vázquez S, Cabezas S, Pérez AB, Pupo M, Ruiz D, Calzada N, Bernardo L, Castro O, González D, Serrano T, Sanchez A, Guzmán MG. Kinetics of antibodies in sera, saliva, and urine samples from adult patients with primary or secondary dengue 3 virus infections. Int J Infect Dis 2006; 11:256-62. [PMID: 16914345 DOI: 10.1016/j.ijid.2006.05.005] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2006] [Revised: 04/22/2006] [Accepted: 05/02/2006] [Indexed: 10/24/2022] Open
Abstract
OBJECTIVES The kinetics of three serological markers (IgM, IgA, and IgG) in serum, saliva, and urine samples from adult patients with primary or secondary dengue infection were studied. DESIGN Serum, saliva, and urine samples were collected from 22 patients with clinical and confirmed dengue 3 virus infection during the outbreak in Havana City in 2001. They were tested by capture IgM (MAC-ELISA), IgA (AAC-ELISA), and IgE (EAC-ELISA) and IgG ELISA inhibition method (EIM) to detect specific dengue antibodies. RESULTS Similar kinetics were observed in IgM, IgA, and IgG antibodies in saliva and IgA and IgG in urine samples from secondary cases compared with kinetics in serum samples, although the values were lower. No IgG antibody was detected in saliva and urine samples in primary cases and IgM antibody was not detected in urine samples from either primary or secondary infection. All secondary cases were positive for IgG in saliva and urine samples at day 7. The kinetics of specific IgE antibodies in primary and secondary cases were different. CONCLUSIONS The kinetics of three serological markers (IgM, IgA, and IgG) in serum, saliva, and urine samples from adult patients with primary or secondary dengue 3 virus infection were studied for the first time, showing its behavior and usefulness in dengue virus diagnosis. The specific IgE could play a role as a serological marker in secondary infections.
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Affiliation(s)
- S Vázquez
- "Pedro Kourí" Tropical Medicine Institute, PAHO/WHO Collaborating Center for Dengue and its Vectors, Autopista Novia del Mediodía, Km 6 1/2, La Lisa, Havana City, Cuba.
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