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Contreras A, Perea-Resa C. Transcriptional repression across mitosis: mechanisms and functions. Biochem Soc Trans 2024; 52:455-464. [PMID: 38372373 PMCID: PMC10903446 DOI: 10.1042/bst20231071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 02/05/2024] [Accepted: 02/06/2024] [Indexed: 02/20/2024]
Abstract
Transcription represents a central aspect of gene expression with RNA polymerase machineries (RNA Pol) driving the synthesis of RNA from DNA template molecules. In eukaryotes, a total of three RNA Pol enzymes generate the plethora of RNA species and RNA Pol II is the one transcribing all protein-coding genes. A high number of cis- and trans-acting factors orchestrates RNA Pol II-mediated transcription by influencing the chromatin recruitment, activation, elongation, and/or termination steps. The levels of DNA accessibility, defining open-euchromatin versus close-heterochromatin, delimits RNA Pol II activity as well as the encounter with other factors acting on chromatin such as the DNA replication or DNA repair machineries. The stage of the cell cycle highly influences RNA Pol II activity with mitosis representing the major challenge. In fact, there is a massive inhibition of transcription during the mitotic entry coupled with chromatin dissociation of most of the components of the transcriptional machinery. Mitosis, as a consequence, highly compromises the transcriptional memory and the perpetuation of cellular identity. Once mitosis ends, transcription levels immediately recover to define the cell fate and to safeguard the proper progression of daughter cells through the cell cycle. In this review, we evaluate our current understanding of the transcriptional repression associated with mitosis with a special focus on the molecular mechanisms involved, on the potential function behind the general repression, and on the transmission of the transcriptional machinery into the daughter cells. We finally discuss the contribution that errors in the inheritance of the transcriptional machinery across mitosis might play in stem cell aging.
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Affiliation(s)
- A. Contreras
- Centro de Biología Molecular Severo Ochoa (CBMSO-CSIC), C/Nicolas Cabrera 1, 28049 Madrid, Spain
| | - C. Perea-Resa
- Centro de Biología Molecular Severo Ochoa (CBMSO-CSIC), C/Nicolas Cabrera 1, 28049 Madrid, Spain
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2
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Toquet M, Bataller E, Toledo-Perona R, Gomis J, Contreras A, Sánchez A, Jiménez-Trigos E, Gómez-Martín Á. In Vitro Interaction between Mycoplasma agalactiae and Small Ruminants' Endogenous Bacterial Strains of Enterococcus spp. and Coagulase-Negative Staphylococcus. Microorganisms 2024; 12:406. [PMID: 38399811 PMCID: PMC10891560 DOI: 10.3390/microorganisms12020406] [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: 12/29/2023] [Revised: 02/12/2024] [Accepted: 02/14/2024] [Indexed: 02/25/2024] Open
Abstract
Recently, an antimicrobial effect on Mycoplasma agalactiae (Ma), the main etiological agent of contagious agalactia (CA), was reported in vitro with strains of Enterococcus spp. from ovine and caprine milk. The aim of this work was to evaluate the interaction of Ma with the same Enterococcus spp. isolated from other anatomical locations (vagina) and other bacterial populations present in milk, such as coagulase-negative staphylococci (CNS). The vaginal Enterococcus strains and the raw milk CNS were isolated from sheep and goats. Experimental in vitro conditions were prepared to assess the growth of Ma with and without the presence of these strains. The selected vaginal strains were identified as Enterococcus (E.) hirae and E. mundtii, and the strains of CNS were identified as Staphylococcus petrasii. Different interactions of Ma with ovine and caprine wild vaginal strains of Enterococcus and dairy strains of CNS are described for the first time: Ma can grow exponentially during 15 h with the selected strains, although with certain strains, its optimal growth can be negatively affected (p < 0.05). The colonization and/or excretion of Ma could, therefore, be influenced by certain endogenous bacterial strains. Our results increase the knowledge about possible bacterial ecology dynamics surrounding CA.
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Affiliation(s)
- Marion Toquet
- Microbiological Agents Associated with Animal Reproduction (ProVaginBIO) Research Group, Departamento Producción y Sanidad Animal, Salud Pública Veterinaria y Ciencia y Tecnología de los Alimentos, Facultad de Veterinaria, Universidad Cardenal Herrera-CEU, CEU Universities, Carrer Tirant lo Blanc, 7, 46115 Valencia, Spain
| | - Esther Bataller
- Microbiological Agents Associated with Animal Reproduction (ProVaginBIO) Research Group, Departamento Producción y Sanidad Animal, Salud Pública Veterinaria y Ciencia y Tecnología de los Alimentos, Facultad de Veterinaria, Universidad Cardenal Herrera-CEU, CEU Universities, Carrer Tirant lo Blanc, 7, 46115 Valencia, Spain
| | - Raquel Toledo-Perona
- Microbiological Agents Associated with Animal Reproduction (ProVaginBIO) Research Group, Departamento Producción y Sanidad Animal, Salud Pública Veterinaria y Ciencia y Tecnología de los Alimentos, Facultad de Veterinaria, Universidad Cardenal Herrera-CEU, CEU Universities, Carrer Tirant lo Blanc, 7, 46115 Valencia, Spain
| | - Jesús Gomis
- Microbiological Agents Associated with Animal Reproduction (ProVaginBIO) Research Group, Departamento Producción y Sanidad Animal, Salud Pública Veterinaria y Ciencia y Tecnología de los Alimentos, Facultad de Veterinaria, Universidad Cardenal Herrera-CEU, CEU Universities, Carrer Tirant lo Blanc, 7, 46115 Valencia, Spain
| | - Antonio Contreras
- Departamento de Sanidad Animal, Facultad de Veterinaria, Universidad de Murcia, Campus de Espinardo, 30100 Murcia, Spain
| | - Antonio Sánchez
- Departamento de Sanidad Animal, Facultad de Veterinaria, Universidad de Murcia, Campus de Espinardo, 30100 Murcia, Spain
| | - Estrella Jiménez-Trigos
- Microbiological Agents Associated with Animal Reproduction (ProVaginBIO) Research Group, Departamento Producción y Sanidad Animal, Salud Pública Veterinaria y Ciencia y Tecnología de los Alimentos, Facultad de Veterinaria, Universidad Cardenal Herrera-CEU, CEU Universities, Carrer Tirant lo Blanc, 7, 46115 Valencia, Spain
| | - Ángel Gómez-Martín
- Microbiological Agents Associated with Animal Reproduction (ProVaginBIO) Research Group, Departamento Producción y Sanidad Animal, Salud Pública Veterinaria y Ciencia y Tecnología de los Alimentos, Facultad de Veterinaria, Universidad Cardenal Herrera-CEU, CEU Universities, Carrer Tirant lo Blanc, 7, 46115 Valencia, Spain
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Toledo-Perona R, Contreras A, Gomis J, Quereda JJ, García-Galán A, Sánchez A, Gómez-Martín Á. Controlling Coxiella burnetii in naturally infected sheep, goats and cows, and public health implications: a scoping review. Front Vet Sci 2024; 11:1321553. [PMID: 38425838 PMCID: PMC10901991 DOI: 10.3389/fvets.2024.1321553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Accepted: 01/29/2024] [Indexed: 03/02/2024] Open
Abstract
Q fever is a worldwide zoonotic disease which domestic ruminants are the main source of infection for humans. This scoping review summarizes the control measures currently available to reduce Coxiella burnetii (Cb) infection in naturally infected sheep, goat and cattle herds. A total of 28 articles were included in the review. A lack of methodological standardization was noted in the articles analyzed. The results indicated that long-term vaccination in cows reduces bacterial excretion in milk and environmental contamination. In small ruminants, the results of vaccination in terms of efficacy are variable. In goats, there is a reduction in bacterial excretion, unlike in sheep, where a long-term vaccination program is necessary to reduce bacterial excretion. Moreover, the high persistence of viable Cb in the environment means that control measures for sheep are needed for several years. The use of antibiotics as a control measure in cows and sheep was not found to reduce excretion. However, the combination of vaccination with antibiotic therapy appears to have positive effects in small ruminants in terms of controlling outbreaks of Q fever. Hygiene and biosecurity measures are the basic means for controlling Cb infection on ruminant farms and ensuring public health.
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Affiliation(s)
- Raquel Toledo-Perona
- Microbiological Agents Associated with Animal Reproduction (ProVaginBio), Universidad CEU Cardenal Herrera, Valencia, Spain
- Department of Animal Production and Health, Veterinary Public Health and Food Science and Technology. Universidad Cardenal Herrera-CEU, CEU Universities, Valencia, Spain
| | | | - Jesús Gomis
- Microbiological Agents Associated with Animal Reproduction (ProVaginBio), Universidad CEU Cardenal Herrera, Valencia, Spain
- Department of Animal Production and Health, Veterinary Public Health and Food Science and Technology. Universidad Cardenal Herrera-CEU, CEU Universities, Valencia, Spain
| | - Juan José Quereda
- Department of Animal Production and Health, Veterinary Public Health and Food Science and Technology. Universidad Cardenal Herrera-CEU, CEU Universities, Valencia, Spain
- Research Group Intracellular Pathogens: Biology and Infection, Universidad CEU Cardenal Herrera, Valencia, Spain
| | - Ana García-Galán
- Department of Animal Health, Universidad de Murcia, Murcia, Spain
| | - Antonio Sánchez
- Department of Animal Health, Universidad de Murcia, Murcia, Spain
| | - Ángel Gómez-Martín
- Microbiological Agents Associated with Animal Reproduction (ProVaginBio), Universidad CEU Cardenal Herrera, Valencia, Spain
- Department of Animal Production and Health, Veterinary Public Health and Food Science and Technology. Universidad Cardenal Herrera-CEU, CEU Universities, Valencia, Spain
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Contreras A, Suárez-Falcón JC, Caprara M, Pozo P, Gómez-Veiga I, Cabras E. Psychometric Properties of the Spanish Version of the Complex Postformal Thought Questionnaire: Developmental Pattern and Significance and Its Relationship With Cognitive and Personality Measures. Collabra: Psychology 2023. [DOI: 10.1525/collabra.67993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023] Open
Abstract
Postformal thought is the highest state of thinking in adults, extending beyond formal operations. Sinnott’s Complex Postformal Thought Questionnaire (PFTQ) is one of the most widely used measures of this construct and thus, the main aim of this study was to translate a Spanish version of the PFTQ and to validate it using a sample of 1093 subjects aged from 18 to 71 years. A cross-validation study was carried out and measurement invariance was analyzed by gender and across age groups: emerging adults, 18-29 years; established adults, 30-45 years; and middle-aged adults, 46-60 years. Furthermore, evidence of validity was assessed relative to cognitive and personality measures (i.e.: mindfulness, grit, resilience, intolerance of uncertainty, conscientiousness, metacognition and learning strategies), as was the developmental pattern of the PFTQ. In the cross-validation study, both the exploratory and confirmatory factor analyses indicated it was appropriate to consider a unidimensional structure. Likewise, the PFTQ exhibited good psychometric properties (α = .84; Ω = .83), and there was reasonable evidence of strict invariance by gender and across age groups. Moreover, the PFTQ was significantly and positively related to metacognition, learning strategies, mindfulness, conscientiousness, resilience and grit, whereas it was significantly and negatively related to intolerance of uncertainty, albeit to a lesser extent. Finally, a developmental progression of the PFTQ was observed during adulthood, with significant differences observed between the latent means of the three age groups, which was associated with moderate effect sizes between the emerging and the established or middle-age adult groups (d = 0.28 and d = 0.37, respectively). By contrast, a very small and practically negligible effect size was detected between the established and middle-aged adult groups (d = 0.09). Relativistic operations would appear to underlie psychosocial development in established adulthood, when they are most needed. Overall, the Spanish version of the PFTQ showed good psychometric properties and validity evidence of its utility to studying adult thinking.
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Affiliation(s)
- Antonio Contreras
- Department of Developmental and Educational Psychology 1 ,
- Universidad Nacional de Educación a Distancia (UNED), Madrid, Spain 1 ,
| | - Juan C. Suárez-Falcón
- Department of Methodology of the Behavioral Sciences 2 ,
- Universidad Nacional de Educación a Distancia (UNED), Madrid, Spain 2 ,
| | - Mariagiovanna Caprara
- Department of Personality Psychology, Evaluation and Psychological Treatment 3 ,
- Universidad Nacional de Educación a Distancia (UNED), Madrid, Spain 3 ,
| | - Pilar Pozo
- Department of Methodology of the Behavioral Sciences 2 ,
- Universidad Nacional de Educación a Distancia (UNED), Madrid, Spain 2 ,
| | - Isabel Gómez-Veiga
- Department of Developmental and Educational Psychology 1 ,
- Universidad Nacional de Educación a Distancia (UNED), Madrid, Spain 1 ,
| | - Emilia Cabras
- Department of Education 4 ,
- Universidad Antonio de Nebrija, Madrid, Spain 4 ,
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Acosta-Marin V, Acosta Freites V, Ramirez A, Marin C, Contreras A, Longobardi I, Martinez O, Maldonado V, Acosta M, Perez Fuentes J. Breast cancer in elderly patients in a Venezuelan breast center. How we manage the axilla. Eur J Cancer 2022. [DOI: 10.1016/s0959-8049(22)01396-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Acosta-Marin V, Acosta Freites V, Ramirez A, Marin C, Contreras A, Longobardi I, Martinez O, Maldonado V, Acosta M, Perez Fuentes J. Neoadjuvant treatment for breast cancer patients in a Venezuelan breast center. Pathologic complete response: is it worth it? Eur J Cancer 2022. [DOI: 10.1016/s0959-8049(22)01517-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Sánchez A, Contreras A, Corrales JC, de la Fe C. [In the beginning it was zoonosis: One Health to combat this and future pandemics. SESPAS Report 2022]. Gac Sanit 2022; 36 Suppl 1:S61-S67. [PMID: 35781151 PMCID: PMC9244666 DOI: 10.1016/j.gaceta.2022.01.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Revised: 01/23/2022] [Accepted: 01/25/2022] [Indexed: 11/09/2022]
Abstract
La pandemia de COVID-19 ha hecho evidente la importancia de la interfaz animal-humano-medio ambiente en la emergencia de zoonosis. A pesar de que el salto de especie se considera un evento raro, el número de enfermedades infecciosas emergentes aumentó de manera significativa en la segunda mitad del siglo xx, siendo estas principalmente de carácter zoonótico y originadas en la fauna silvestre. Entre los determinantes asociados a la emergencia de zoonosis destacan la interacción humana con los ecosistemas, la pérdida de biodiversidad, los cambios en el uso del suelo, el cambio climático, el comercio y el consumo de fauna silvestre, etc. En el proceso del salto de especie existen diferentes fases de adaptación evolutiva entre el patógeno y la especie humana, variando desde su presencia en el reservorio animal sin infección humana hasta enfermedades exclusivamente humanas sin otros reservorios. El conocimiento de la evolución natural de las zoonosis permite identificar los puntos críticos para su control, al tiempo que posibilita identificar posibles candidatos para futuras pandemias. De forma específica, los avances en el conocimiento de los posibles reservorios del SARS-CoV-2 han contribuido a la toma de decisiones durante la pandemia. Por todo ello, y ante la variedad de escenarios que posibilitan el salto de especie y la evolución de los diferentes patógenos en un nuevo huésped, la vigilancia frente a la emergencia de zoonosis debe plantearse bajo la estrategia One Health.
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Affiliation(s)
- Antonio Sánchez
- Grupo de Investigación Sanidad de Rumiantes, Departamento de Sanidad Animal, Facultad de Veterinaria, Campus de Excelencia Internacional Campus Mare Nostrum, Universidad de Murcia, Murcia, España
| | - Antonio Contreras
- Grupo de Investigación Sanidad de Rumiantes, Departamento de Sanidad Animal, Facultad de Veterinaria, Campus de Excelencia Internacional Campus Mare Nostrum, Universidad de Murcia, Murcia, España
| | - Juan C Corrales
- Grupo de Investigación Sanidad de Rumiantes, Departamento de Sanidad Animal, Facultad de Veterinaria, Campus de Excelencia Internacional Campus Mare Nostrum, Universidad de Murcia, Murcia, España
| | - Christian de la Fe
- Grupo de Investigación Sanidad de Rumiantes, Departamento de Sanidad Animal, Facultad de Veterinaria, Campus de Excelencia Internacional Campus Mare Nostrum, Universidad de Murcia, Murcia, España.
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Sánchez A, García-Galán A, Hernández X, García-Romero E, Amores-Iniesta J, Contreras A. [One Health: implications of the eradication of brucellosis in the animal reservoir in Spain.]. Rev Esp Salud Publica 2021; 95:e1-e3. [PMID: 34840327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 06/10/2021] [Indexed: 06/13/2023] Open
Affiliation(s)
- Antonio Sánchez
- Grupo de investigación Sanidad de Rumiantes. Departamento de Sanidad Animal. Facultad de Veterinaria. Campus de Excelencia Internacional "Campus Mare Nostrum". Universidad de Murcia. Murcia. España
| | - Ana García-Galán
- Grupo de investigación Sanidad de Rumiantes. Departamento de Sanidad Animal. Facultad de Veterinaria. Campus de Excelencia Internacional "Campus Mare Nostrum". Universidad de Murcia. Murcia. España
| | - Xochitl Hernández
- Grupo de investigación Sanidad de Rumiantes. Departamento de Sanidad Animal. Facultad de Veterinaria. Campus de Excelencia Internacional "Campus Mare Nostrum". Universidad de Murcia. Murcia. España
| | - Edgar García-Romero
- Grupo de investigación Sanidad de Rumiantes. Departamento de Sanidad Animal. Facultad de Veterinaria. Campus de Excelencia Internacional "Campus Mare Nostrum". Universidad de Murcia. Murcia. España
| | - Joaquín Amores-Iniesta
- Grupo de investigación Sanidad de Rumiantes. Departamento de Sanidad Animal. Facultad de Veterinaria. Campus de Excelencia Internacional "Campus Mare Nostrum". Universidad de Murcia. Murcia. España
| | - Antonio Contreras
- Grupo de investigación Sanidad de Rumiantes. Departamento de Sanidad Animal. Facultad de Veterinaria. Campus de Excelencia Internacional "Campus Mare Nostrum". Universidad de Murcia. Murcia. España
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Contreras A, García Ibáñez L, Parilli D. How I do it video: Canal wall-down tympanoplasty in a case of advanced middle ear cholesteatoma with large fallopian canal and lateral semicircular canal dehiscences. Eur Ann Otorhinolaryngol Head Neck Dis 2021; 138 Suppl 3:79-83. [PMID: 34373224 DOI: 10.1016/j.anorl.2021.07.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 07/23/2021] [Accepted: 07/27/2021] [Indexed: 11/29/2022]
Affiliation(s)
- A Contreras
- Garcia Ibañez Otology Institute, 91st Dr. Roux Street, 08017 Barcelona, Spain.
| | - L García Ibáñez
- Garcia Ibañez Otology Institute, 91st Dr. Roux Street, 08017 Barcelona, Spain
| | - D Parilli
- Garcia Ibañez Otology Institute, 91st Dr. Roux Street, 08017 Barcelona, Spain
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Tirado-Gonzalez I, Czlonka E, Nevmerzhitskaya A, Soetopo D, Bergonzani E, Mahmoud A, Contreras A, Jeremias I, Platzbecker U, Bourquin JP, Kloz U, Van der Hoeven F, Medyouf H. Correction: CRISPR/Cas9-edited NSG mice as PDX models of human leukemia to address the role of niche-derived SPARC. Leukemia 2020; 35:294. [PMID: 33262529 DOI: 10.1038/s41375-020-01071-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- I Tirado-Gonzalez
- Georg-Speyer-Haus, Institute for Tumor Biology and Experimental Therapy, Frankfurt, Germany
| | - E Czlonka
- Georg-Speyer-Haus, Institute for Tumor Biology and Experimental Therapy, Frankfurt, Germany
| | - A Nevmerzhitskaya
- Georg-Speyer-Haus, Institute for Tumor Biology and Experimental Therapy, Frankfurt, Germany
| | - D Soetopo
- Georg-Speyer-Haus, Institute for Tumor Biology and Experimental Therapy, Frankfurt, Germany
| | - E Bergonzani
- Georg-Speyer-Haus, Institute for Tumor Biology and Experimental Therapy, Frankfurt, Germany
| | - A Mahmoud
- Georg-Speyer-Haus, Institute for Tumor Biology and Experimental Therapy, Frankfurt, Germany
| | - A Contreras
- Georg-Speyer-Haus, Institute for Tumor Biology and Experimental Therapy, Frankfurt, Germany
| | - I Jeremias
- Department of Apoptosis in Hematopoietic Stem Cells, Helmholtz Center Münich, German Center for Environmental Health (HMGU), Munich, Germany.,German Cancer Consortium, DKTK Partner Site Munich, Heidelberg, Germany
| | - U Platzbecker
- University Hospital Carl Gustav Carus, Technical University Dresden, Dresden, Germany.,German Cancer Consortium, DKTK Partner Site Dresden, Heidelberg, Germany
| | - J P Bourquin
- Division of Pediatric Oncology, University Children's Hospital, Zurich, Switzerland
| | - U Kloz
- Division of Pediatric Oncology, University Children's Hospital, Zurich, Switzerland
| | - F Van der Hoeven
- Transgenic Service, German Cancer Research Center, Heidelberg, Germany
| | - H Medyouf
- Georg-Speyer-Haus, Institute for Tumor Biology and Experimental Therapy, Frankfurt, Germany. .,German Cancer Consortium, DKTK Partner Site Frankfurt/Mainz, Heidelberg, Germany. .,Department of Hematology and Oncology, University Hospital Mannheim, Medical Faculty, University of Heidelberg, Mannheim, Germany.
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Quej Ake LM, Liu HB, Alamilla J, Sosa E, Contreras A. Electrochemical Study of External Corrosion of Three API Steels Exposed to Seawater and Sediment from Seabed of the Gulf of México. Surf Engin Appl Electrochem 2020. [DOI: 10.3103/s1068375520030126] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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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García-Galán A, García-Romero E, Sánchez A, Corrales JC, Contreras A, De la Fe C. Isolation of Mycoplasma auris from milk of goats with clinical mastitis. Small Rumin Res 2020. [DOI: 10.1016/j.smallrumres.2020.106089] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [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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13
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Sánchez A, García-Galán A, García E, Gómez-Martín Á, de la Fe C, Corrales JC, Contreras A. [Occupational exposure to influenza virus of the wild birds]. Rev Esp Salud Publica 2020; 94:e202003022. [PMID: 32381999] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Accepted: 03/06/2020] [Indexed: 06/11/2023] Open
Abstract
Wild waterfowl are considered the main natural reservoir of influenza viruses and they have contributed to the reassortment of both pandemic viruses and viruses responsible for outbreaks of avian influenza in wild and domestic species. In order to determinate the factors involved, we reviewed the human cases of avian influenza related to the management of wild birds, the use of personal protective equipment, as well as the basis of surveillance programs of highly pathogenic avian influenza in wild birds in Spain. The direct transmission of influenza virus from wild birds to humans is a rare event. However, our epidemiological context is influenced by climate change and marked by the presence of migratory routes from territories where infection may be present. Thus and due to the clinical, economical and public health implications that such infections may have, the different groups exposed to wild birds (veterinarians, biologists, ornithologists, conservationists, field technicians, environmental officers, falconers, hunters, etc.) should know which are the possible sources of infection and how to handle the personal protective equipment. Besides, it is important that those groups know the current sanitary situation regarding avian influenza so they can consequently adapt their activities and employ proper protective measures, in addition to providing valuable information for surveillance programs.
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Affiliation(s)
- Antonio Sánchez
- Departamento de Sanidad Animal. Facultad de Veterinaria. Campus de Excelencia Internacional "Mare Nostrum". Universidad de Murcia. Murcia. España
| | - Ana García-Galán
- Departamento de Sanidad Animal. Facultad de Veterinaria. Campus de Excelencia Internacional "Mare Nostrum". Universidad de Murcia. Murcia. España
| | - Edgar García
- Departamento de Sanidad Animal. Facultad de Veterinaria. Campus de Excelencia Internacional "Mare Nostrum". Universidad de Murcia. Murcia. España
| | - Ángel Gómez-Martín
- Departamento de Sanidad Animal. Facultad de Veterinaria. Campus de Excelencia Internacional "Mare Nostrum". Universidad de Murcia. Murcia. España
- Departamento de Sanidad Animal y Salud Pública. Facultad de Ciencias Veterinarias. Universidad CEU Cardenal Herrera. Valencia. España
| | - Christian de la Fe
- Departamento de Sanidad Animal. Facultad de Veterinaria. Campus de Excelencia Internacional "Mare Nostrum". Universidad de Murcia. Murcia. España
| | - Juan C Corrales
- Departamento de Sanidad Animal. Facultad de Veterinaria. Campus de Excelencia Internacional "Mare Nostrum". Universidad de Murcia. Murcia. España
| | - Antonio Contreras
- Departamento de Sanidad Animal. Facultad de Veterinaria. Campus de Excelencia Internacional "Mare Nostrum". Universidad de Murcia. Murcia. España
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Sánchez A, García-Galán A, García E, Gómez-Martín Á, Fe CDL, Corrales JC, Contreras A. Exposición ocupacional a los virus influenza de las aves silvestres. Rev Esp Salud Publica 2020. [DOI: 10.4321/s1135-57272020000100006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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Litton J, Damodaran S, Wistuba I, Yang F, Contreras A, Tam A, Ojalvo L, Dussault I, Helwig C, Moulder S. Bintrafusp alfa (M7824) and eribulin mesylate in treating patients with metastatic triple negative breast cancer (TNBC)(NCT03579472). Ann Oncol 2019. [DOI: 10.1093/annonc/mdz242.078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Veeraraghavan J, De Angelis C, Mao R, Wang T, Herrera S, Pavlick AC, Contreras A, Nuciforo P, Mayer IA, Forero A, Nanda R, Goetz MP, Chang JC, Wolff AC, Krop IE, Fuqua SAW, Prat A, Hilsenbeck SG, Weigelt B, Reis-Filho JS, Gutierrez C, Osborne CK, Rimawi MF, Schiff R. A combinatorial biomarker predicts pathologic complete response to neoadjuvant lapatinib and trastuzumab without chemotherapy in patients with HER2+ breast cancer. Ann Oncol 2019; 30:927-933. [PMID: 30903140 PMCID: PMC6594453 DOI: 10.1093/annonc/mdz076] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
BACKGROUND HER2-positive (+) breast cancers, defined by HER2 overexpression and/or amplification, are often addicted to HER2 to maintain their malignant phenotype. Yet, some HER2+ tumors do not benefit from anti-HER2 therapy. We hypothesize that HER2 amplification levels and PI3K pathway activation are key determinants of response to HER2-targeted treatments without chemotherapy. PATIENTS AND METHODS Baseline HER2+ tumors from patients treated with neoadjuvant lapatinib plus trastuzumab [with endocrine therapy for estrogen receptor (ER)+ tumors] in TBCRC006 (NCT00548184) were evaluated in a central laboratory for HER2 amplification by fluorescence in situ hybridization (FISH) (n = 56). HER2 copy number (CN) and FISH ratios, and PI3K pathway status, defined by PIK3CA mutations or PTEN levels by immunohistochemistry were available for 41 tumors. Results were correlated with pathologic complete response (pCR; no residual invasive tumor in breast). RESULTS Thirteen of the 56 patients (23%) achieved pCR. None of the 11 patients with HER2 ratio <4 and/or CN <10 achieved pCR, whereas 13/45 patients (29%) with HER2 ratio ≥4 and/or CN ≥10 attained pCR (P = 0.0513). Of the 18 patients with tumors expressing high PTEN or wild-type (WT) PIK3CA (intact PI3K pathway), 7 (39%) achieved pCR, compared with 1/23 (4%) with PI3K pathway alterations (P = 0.0133). Seven of the 16 patients (44%) with HER2 ratio ≥4 and intact PI3K pathway achieved pCR, whereas only 1/25 (4%) patients not meeting these criteria achieved pCR (P = 0.0031). CONCLUSIONS Our findings suggest that there is a clinical subtype in breast cancer with high HER2 amplification and intact PI3K pathway that is especially sensitive to HER2-targeted therapies without chemotherapy. A combination of HER2 FISH ratio and PI3K pathway status warrants validation to identify patients who may be treated with HER2-targeted therapy without chemotherapy.
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Affiliation(s)
- J Veeraraghavan
- Lester and Sue Smith Breast Center; Dan L. Duncan Comprehensive Cancer Center
| | - C De Angelis
- Lester and Sue Smith Breast Center; Dan L. Duncan Comprehensive Cancer Center
| | - R Mao
- Lester and Sue Smith Breast Center; Dan L. Duncan Comprehensive Cancer Center
| | - T Wang
- Lester and Sue Smith Breast Center; Dan L. Duncan Comprehensive Cancer Center; Departments of Medicine
| | - S Herrera
- Lester and Sue Smith Breast Center; Dan L. Duncan Comprehensive Cancer Center; Pathology, Baylor College of Medicine, Houston, USA
| | - A C Pavlick
- Lester and Sue Smith Breast Center; Dan L. Duncan Comprehensive Cancer Center
| | - A Contreras
- Lester and Sue Smith Breast Center; Dan L. Duncan Comprehensive Cancer Center; Pathology, Baylor College of Medicine, Houston, USA
| | - P Nuciforo
- Translational Genomics and Targeted Therapeutics in Solid Tumors, IDIBAPS, Hospital Clinic de Barcelona, Barcelona, Spain
| | - I A Mayer
- Medicine, Hematology/Oncology, Vanderbilt University, Nashville
| | - A Forero
- Medicine, University of Alabama at Birmingham, Birmingham
| | - R Nanda
- Medicine, University of Chicago, Chicago
| | - M P Goetz
- Department of Oncology, Mayo Clinic, Rochester
| | - J C Chang
- Houston Methodist Cancer Center, Houston Methodist Hospital, Houston
| | - A C Wolff
- Johns Hopkins Sidney Kimmel Comprehensive Cancer Center, Baltimore
| | - I E Krop
- Department of Medicine, Dana-Farber Cancer Institute, Boston
| | - S A W Fuqua
- Lester and Sue Smith Breast Center; Dan L. Duncan Comprehensive Cancer Center
| | - A Prat
- Translational Genomics and Targeted Therapeutics in Solid Tumors, IDIBAPS, Hospital Clinic de Barcelona, Barcelona, Spain
| | - S G Hilsenbeck
- Lester and Sue Smith Breast Center; Dan L. Duncan Comprehensive Cancer Center; Departments of Medicine
| | - B Weigelt
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York
| | - J S Reis-Filho
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York
| | - C Gutierrez
- Lester and Sue Smith Breast Center; Dan L. Duncan Comprehensive Cancer Center; Pathology, Baylor College of Medicine, Houston, USA
| | - C K Osborne
- Lester and Sue Smith Breast Center; Dan L. Duncan Comprehensive Cancer Center; Departments of Medicine; Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, USA
| | - M F Rimawi
- Lester and Sue Smith Breast Center; Dan L. Duncan Comprehensive Cancer Center; Departments of Medicine
| | - R Schiff
- Lester and Sue Smith Breast Center; Dan L. Duncan Comprehensive Cancer Center; Departments of Medicine; Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, USA.
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Altamirano J, Contreras A, Cifuentes J, Yanine N, Cristi E, Diaz E, Pedregal P, Martinez F. Primary diffuse large b-cell lymphoma of the mandible, literature review and report of two cases. Int J Oral Maxillofac Surg 2019. [DOI: 10.1016/j.ijom.2019.03.219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Altamirano J, Salas M, Contreras A, Martínez F, Slater J, Barrera A, Cifuentes J. Ameloblastic fibroodontoma, literature review apropos of a case. Int J Oral Maxillofac Surg 2019. [DOI: 10.1016/j.ijom.2019.03.264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Martinez F, Cifuentes J, Yanine N, Barrera A, Contreras A, Cristi E, Altamirano J, Salas M. Antiphospholipid syndrome and perioperative management in orthognathic surgery. Case report. Int J Oral Maxillofac Surg 2019. [DOI: 10.1016/j.ijom.2019.03.785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Salas M, Contreras A, Altamirano J, Quiñones L, Madrid A, Capdeville F, Valdés F. Adenoid cystic carcinoma of the maxillary sinus, literature review apropos of a case. Int J Oral Maxillofac Surg 2019. [DOI: 10.1016/j.ijom.2019.03.254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Contreras A, Altamirano J, Salas M, Yanine N, Slater J, Barrera A. Necrotizing sialometaplasia, literature review and report of two cases. Int J Oral Maxillofac Surg 2019. [DOI: 10.1016/j.ijom.2019.03.699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Thomas PS, Patel AB, Contreras A, Liu DD, Lee JJ, Khan S, Vornik LA, Dimond EP, Perloff M, Heckman-Stoddard BM, Brown PH. Abstract OT2-09-02: A phase I dose escalation study of topical bexarotene in women at high risk for breast cancer. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-ot2-09-02] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Breast cancer prevention with anti-estrogens, including tamoxifen, raloxifene, and exemestane, has been shown to reduce the incidence of hormone receptor-positive breast cancer. However, agents that can reduce the incidence of hormone receptor negative breast cancer are currently lacking. Rexinoids such as bexarotene are vitamin A analogues that have been shown to be involved in cell differentiation, growth, and apoptosis. In preclinical mouse models that develop ER-negative breast cancers, bexarotene showed a significant reduction in mammary tumor development. Oral bexarotene has been evaluated in BRCA mutation carriers and significant decreases in cyclin D1 were noted in breast cells suggesting biological activity of bexarotene on breast tissue. Systemic side effects of hyperlipidemia and hypothyroidism were also found. Data from chemoprevention studies with topical 4-hydroxytamoxifen support the concept of topical agents penetrating into the breast tissue and exhibiting biological activity in the tissue. We hypothesize that topical bexarotene can be applied to the breast as a chemoprevention agent with penetration to the breast tissue without subsequent systemic side effects and toxicity as seen with oral bexarotene.
Trial Design: Women at high risk for breast cancer will be recruited and assigned to one of three different dose levels: 10mg (1ml) every other day, 10mg (1ml) daily, 20mg (2ml) daily to one unaffected breast for 4 weeks. The primary endpoint of the study is to determine the recommended phase II dose of topical bexarotene 1% gel for evaluation in healthy at-risk women. Dose Limiting Toxicity (DLT) is defined as a grade 2 skin adverse event that persists for at least 6 days or any grade 3 or greater adverse event related to the study drug. A grade 2 skin adverse event that recurs and persists for at least 3 days is also a DLT. The Maximum Tolerated Dose (MTD) will be defined as the highest dose level at which no more than 2 participants experience a DLT among 10 participants treated. A conservative modification of the standard “3+3” design will be applied. The first three participants will be assigned to the lowest dose level. New cohorts of 3-4 participants will not be treated until toxicity has been fully evaluated for all current participants through 4 weeks. Once the MTD has been determined, an expansion cohort of an additional 10 patients will be recruited at the MTD to further evaluate safety and toxicity at this dose level as well bexarotene concentration in the breast tissue. Secondary endpoints include serum bexarotene level, tissue bexarotene levels, and changes in thyroid function tests, lipid profile, and calcium. The planned accrual for this study if maximally accrued to all dose levels and the dose expansion cohort will be 40 participants.
Citation Format: Thomas PS, Patel AB, Contreras A, Liu DD, Lee JJ, Khan S, Vornik LA, Dimond EP, Perloff M, Heckman-Stoddard BM, Brown PH. A phase I dose escalation study of topical bexarotene in women at high risk for breast cancer [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr OT2-09-02.
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Affiliation(s)
- PS Thomas
- University of Texas at MD Anderson Cancer Center, Houston, TX; Northwestern University, Chicago, IL; National Cancer Institute, Bethesda, MD
| | - AB Patel
- University of Texas at MD Anderson Cancer Center, Houston, TX; Northwestern University, Chicago, IL; National Cancer Institute, Bethesda, MD
| | - A Contreras
- University of Texas at MD Anderson Cancer Center, Houston, TX; Northwestern University, Chicago, IL; National Cancer Institute, Bethesda, MD
| | - DD Liu
- University of Texas at MD Anderson Cancer Center, Houston, TX; Northwestern University, Chicago, IL; National Cancer Institute, Bethesda, MD
| | - JJ Lee
- University of Texas at MD Anderson Cancer Center, Houston, TX; Northwestern University, Chicago, IL; National Cancer Institute, Bethesda, MD
| | - S Khan
- University of Texas at MD Anderson Cancer Center, Houston, TX; Northwestern University, Chicago, IL; National Cancer Institute, Bethesda, MD
| | - LA Vornik
- University of Texas at MD Anderson Cancer Center, Houston, TX; Northwestern University, Chicago, IL; National Cancer Institute, Bethesda, MD
| | - EP Dimond
- University of Texas at MD Anderson Cancer Center, Houston, TX; Northwestern University, Chicago, IL; National Cancer Institute, Bethesda, MD
| | - M Perloff
- University of Texas at MD Anderson Cancer Center, Houston, TX; Northwestern University, Chicago, IL; National Cancer Institute, Bethesda, MD
| | - BM Heckman-Stoddard
- University of Texas at MD Anderson Cancer Center, Houston, TX; Northwestern University, Chicago, IL; National Cancer Institute, Bethesda, MD
| | - PH Brown
- University of Texas at MD Anderson Cancer Center, Houston, TX; Northwestern University, Chicago, IL; National Cancer Institute, Bethesda, MD
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Thomas PS, Contreras A, Pruthi S, Krontiras H, Rimawi M, Garber J, Wang T, Hilsenbeck SG, Vornik LA, Gilmer T, Friedman R, Heckman-Stoddard BM, Dunn B, Kuerer H, Brown PH. Abstract PD3-07: A phase II pre-surgical trial of lapatinib for the treatment of women with HER2 positive or EGFR positive ductal carcinoma in situ. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-pd3-07] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Estrogen receptor (ER)-negative tumors and human epidermal growth factor 2-Neu (HER2) positive breast cancers are known to be more clinically aggressive subtypes of breast cancer and account for 30% of all breast cancers. Women with HER2 + breast cancers, whether ER+ or ER -, require cytotoxic chemotherapy with a HER2-targeting agent, and often have adverse outcomes. Thus, preventive agents are needed to reduce the incidence of these subtypes of aggressive breast cancer. Lapatinib, a dual tyrosine kinase inhibitor, inhibits epidermal growth factor receptors (EGFR) and HER2 kinases and has shown to decrease breast cell proliferation in invasive breast cancer and adjacent premalignant lesions. Therefore, we conducted a multi-institutional randomized Phase II clinical trial to study the effects of the signal transduction inhibitor lapatinib in women with HER2-positive or EGFR-positive ductal carcinoma in situ (DCIS).
Methods: Randomized participants received either lapatinib (750mg, 1000mg, or 1500mg) or placebo daily for 2-6 weeks prior to their surgery. After minimal accrual, the trial was later amended to lapatinib 1000mg or placebo. Pre-treatment breast tissue was obtained from initial diagnostic core biopsy and post-treatment breast tissue was obtained from surgical excision specimen. Blood was obtained prior to surgery to assess serum lapatinib level. Participants kept a daily symptom assessment log and had a cardiac assessment at baseline and prior to surgery. Patients were instructed to take drug up to and including the day before surgery. The dual primary endpoint for this study was change in proliferation in pre- versus post-treatment biopsies between the two treatment arms, as measured by Ki67 as well as toxicity assessment. Secondary endpoints included incidence of DCIS at surgery and modulation of tissue biomarker expression in growth factor receptors (EGFR, ErbB2); phosphorylated growth factor receptor (phospho-ErbB2); signal transduction markers (MAPK, phospho-MAPK); hormone receptors (ER, PR); and p27.
Results:Twenty-two women (mean age: 51; range: 32-66) with HER2+ or EGFR+ DCIS were treated with lapatinib (1,000 or 1,500 mg) or placebo for 2–6 weeks prior to surgical excision. Ki67 expression was significantly decreased in the lapatinib treatment arms compared to placebo (p=0.0122). Diarrhea, fatigue, and skin reactions were notable adverse events that occurred predominately in the lapatinib arm compared to placebo. No grade 3 or 4 events related to the study drug were noted during the study. No changes were noted in cardiac function. DCIS was present in all surgical specimens in both arms. Invasive breast cancer was noted in 1 patient on lapatinib 1000mg and 3 patients on placebo. No statistically significant changes were noted in signal transduction biomarkers
Conclusion:These results demonstrate the effectiveness of lapatinib in reducing proliferation in women with EGFR+ or HER2+ DCIS. Even low-grade toxicities can deter use of an agent in the prevention setting. This and the lack of a risk model for HER2+ and triple negative breast cancer make the development of larger scale clinical prevention trials of lapatinib for the prevention a challenge.
Citation Format: Thomas PS, Contreras A, Pruthi S, Krontiras H, Rimawi M, Garber J, Wang T, Hilsenbeck SG, Vornik LA, Gilmer T, Friedman R, Heckman-Stoddard BM, Dunn B, Kuerer H, Brown PH. A phase II pre-surgical trial of lapatinib for the treatment of women with HER2 positive or EGFR positive ductal carcinoma in situ [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr PD3-07.
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Affiliation(s)
- PS Thomas
- University of Texas at MD Anderson Cancer Center, Houston, TX; Mayo Clinic, Rochester, MN; University of Alabama Medical Center, Birmingham, AL; Baylor College of Medicine, Houston, TX; Dana Farber Cancer Institute, Boston, MA; National Cancer Institute, Bethesda, MD; Glaxo Smith Kline, Durham, NC
| | - A Contreras
- University of Texas at MD Anderson Cancer Center, Houston, TX; Mayo Clinic, Rochester, MN; University of Alabama Medical Center, Birmingham, AL; Baylor College of Medicine, Houston, TX; Dana Farber Cancer Institute, Boston, MA; National Cancer Institute, Bethesda, MD; Glaxo Smith Kline, Durham, NC
| | - S Pruthi
- University of Texas at MD Anderson Cancer Center, Houston, TX; Mayo Clinic, Rochester, MN; University of Alabama Medical Center, Birmingham, AL; Baylor College of Medicine, Houston, TX; Dana Farber Cancer Institute, Boston, MA; National Cancer Institute, Bethesda, MD; Glaxo Smith Kline, Durham, NC
| | - H Krontiras
- University of Texas at MD Anderson Cancer Center, Houston, TX; Mayo Clinic, Rochester, MN; University of Alabama Medical Center, Birmingham, AL; Baylor College of Medicine, Houston, TX; Dana Farber Cancer Institute, Boston, MA; National Cancer Institute, Bethesda, MD; Glaxo Smith Kline, Durham, NC
| | - M Rimawi
- University of Texas at MD Anderson Cancer Center, Houston, TX; Mayo Clinic, Rochester, MN; University of Alabama Medical Center, Birmingham, AL; Baylor College of Medicine, Houston, TX; Dana Farber Cancer Institute, Boston, MA; National Cancer Institute, Bethesda, MD; Glaxo Smith Kline, Durham, NC
| | - J Garber
- University of Texas at MD Anderson Cancer Center, Houston, TX; Mayo Clinic, Rochester, MN; University of Alabama Medical Center, Birmingham, AL; Baylor College of Medicine, Houston, TX; Dana Farber Cancer Institute, Boston, MA; National Cancer Institute, Bethesda, MD; Glaxo Smith Kline, Durham, NC
| | - T Wang
- University of Texas at MD Anderson Cancer Center, Houston, TX; Mayo Clinic, Rochester, MN; University of Alabama Medical Center, Birmingham, AL; Baylor College of Medicine, Houston, TX; Dana Farber Cancer Institute, Boston, MA; National Cancer Institute, Bethesda, MD; Glaxo Smith Kline, Durham, NC
| | - SG Hilsenbeck
- University of Texas at MD Anderson Cancer Center, Houston, TX; Mayo Clinic, Rochester, MN; University of Alabama Medical Center, Birmingham, AL; Baylor College of Medicine, Houston, TX; Dana Farber Cancer Institute, Boston, MA; National Cancer Institute, Bethesda, MD; Glaxo Smith Kline, Durham, NC
| | - LA Vornik
- University of Texas at MD Anderson Cancer Center, Houston, TX; Mayo Clinic, Rochester, MN; University of Alabama Medical Center, Birmingham, AL; Baylor College of Medicine, Houston, TX; Dana Farber Cancer Institute, Boston, MA; National Cancer Institute, Bethesda, MD; Glaxo Smith Kline, Durham, NC
| | - T Gilmer
- University of Texas at MD Anderson Cancer Center, Houston, TX; Mayo Clinic, Rochester, MN; University of Alabama Medical Center, Birmingham, AL; Baylor College of Medicine, Houston, TX; Dana Farber Cancer Institute, Boston, MA; National Cancer Institute, Bethesda, MD; Glaxo Smith Kline, Durham, NC
| | - R Friedman
- University of Texas at MD Anderson Cancer Center, Houston, TX; Mayo Clinic, Rochester, MN; University of Alabama Medical Center, Birmingham, AL; Baylor College of Medicine, Houston, TX; Dana Farber Cancer Institute, Boston, MA; National Cancer Institute, Bethesda, MD; Glaxo Smith Kline, Durham, NC
| | - BM Heckman-Stoddard
- University of Texas at MD Anderson Cancer Center, Houston, TX; Mayo Clinic, Rochester, MN; University of Alabama Medical Center, Birmingham, AL; Baylor College of Medicine, Houston, TX; Dana Farber Cancer Institute, Boston, MA; National Cancer Institute, Bethesda, MD; Glaxo Smith Kline, Durham, NC
| | - B Dunn
- University of Texas at MD Anderson Cancer Center, Houston, TX; Mayo Clinic, Rochester, MN; University of Alabama Medical Center, Birmingham, AL; Baylor College of Medicine, Houston, TX; Dana Farber Cancer Institute, Boston, MA; National Cancer Institute, Bethesda, MD; Glaxo Smith Kline, Durham, NC
| | - H Kuerer
- University of Texas at MD Anderson Cancer Center, Houston, TX; Mayo Clinic, Rochester, MN; University of Alabama Medical Center, Birmingham, AL; Baylor College of Medicine, Houston, TX; Dana Farber Cancer Institute, Boston, MA; National Cancer Institute, Bethesda, MD; Glaxo Smith Kline, Durham, NC
| | - PH Brown
- University of Texas at MD Anderson Cancer Center, Houston, TX; Mayo Clinic, Rochester, MN; University of Alabama Medical Center, Birmingham, AL; Baylor College of Medicine, Houston, TX; Dana Farber Cancer Institute, Boston, MA; National Cancer Institute, Bethesda, MD; Glaxo Smith Kline, Durham, NC
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Seth TK, Bai S, Hu M, Sei E, Wood A, Wiley J, Chen H, Contreras A, Teshome M, Lim B, Navin NE. Abstract GS1-02: Towards a human breast cell atlas. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-gs1-02] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
The human breast tissue consists of lobules connected to a complex network of ducts that are evolutionarily designed to produce and transport milk to nourish offspring. Histopathology has identified 10 major cell types based on morphological features but have provided limited information on cell states - the transcriptional programs of cell types that reflect different biological functions. In this study, we have generated an unbiased 'cell atlas' of the normal human breast to define the cell types and cell states using single cell RNA sequencing methods. We performed 3' microdroplet based single cell RNA sequencing of 31,442 stromal cells from 11 women with pathologically normal breast tissues that were collected from mastectomies. Unbiased expression analysis identified three major cell types: epithelial cells (luminal and basal), fibroblasts and endothelial cells, in addition to several minor cell types: macrophages, T-cells, natural killer cells, pericytes and smooth muscle cells. Analysis of cell states of these cell types revealed different transcriptional programs in luminal epithelial cells (hormone receptor positive and secretory), basal epithelial cells (myoepithelial or basement-like), endothelial cells (lymphatic or vascular), macrophages (M1 or M2) and fibroblasts (three subgroups) and provided insight into progenitors of each cell types. These data provide a valuable reference for the research community and will provide new insights into how normal cell types are transformed in the tumor microenvironment to promote or inhibit the progression of breast cancer.
Citation Format: Seth TK, Bai S, Hu M, Sei E, Wood A, Wiley J, Chen H, Contreras A, Teshome M, Lim B, Navin NE. Towards a human breast cell atlas [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr GS1-02.
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Affiliation(s)
- TK Seth
- The University of Texas MD Anderson Cancer Center, Houston, TX
| | - S Bai
- The University of Texas MD Anderson Cancer Center, Houston, TX
| | - M Hu
- The University of Texas MD Anderson Cancer Center, Houston, TX
| | - E Sei
- The University of Texas MD Anderson Cancer Center, Houston, TX
| | - A Wood
- The University of Texas MD Anderson Cancer Center, Houston, TX
| | - J Wiley
- The University of Texas MD Anderson Cancer Center, Houston, TX
| | - H Chen
- The University of Texas MD Anderson Cancer Center, Houston, TX
| | - A Contreras
- The University of Texas MD Anderson Cancer Center, Houston, TX
| | - M Teshome
- The University of Texas MD Anderson Cancer Center, Houston, TX
| | - B Lim
- The University of Texas MD Anderson Cancer Center, Houston, TX
| | - NE Navin
- The University of Texas MD Anderson Cancer Center, Houston, TX
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Sánchez A, Prats-van der Ham M, Tatay-Dualde J, García-Galán A, de la Fe C, Corrales JC, Contreras A. [Zoonoses and occupational health in the veterinary profession]. Rev Esp Salud Publica 2018; 92:e201812086. [PMID: 30499938] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Accepted: 10/25/2018] [Indexed: 06/09/2023] Open
Abstract
The veterinary profession implies a greater risk of infection by zoonotic pathogens than the overall population. The aim of the present work was to evaluate the impact of zoonoses on the occupational health of veterinarians reviewing the published surveys addressing this subject. Following these inquiries, between 4% and 64.3% of the surveyed professionals acknowledge to have suffered at least one zoonotic disease, and dermatophytosis is the most frequently described zoonosis. In addition, from a qualitative point of view, it is necessary to highlight the occurrence of different diseases of important clinical seriousness and the existence of infections by antimicrobial-resistant pathogens. Due to the absence of updated studies in Spain, the present work reflects on the need to recognize the health determinants associated to the veterinary profession within the characteristics of our labour market. The available data suggest that the occurrence of zoonoses as occupational diseases is underestimated in Spain. Therefore, performing surveys on occupational health, documenting and publishing cases and reviewing the risks and the impact of zoonotic diseases on the veterinary profession would contribute to the description and notification of such diseases on behalf of the healthcare administration and would also become an essential tool in occupational risk prevention.
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Affiliation(s)
- Antonio Sánchez
- Grupo de investigación Sanidad de Rumiantes. Departamento de Sanidad Animal. Facultad de Veterinaria. Campus de Excelencia Internacional 'Campus Mare Nostrum'. Universidad de Murcia. Murcia. España
| | - Miranda Prats-van der Ham
- Grupo de investigación Sanidad de Rumiantes. Departamento de Sanidad Animal. Facultad de Veterinaria. Campus de Excelencia Internacional 'Campus Mare Nostrum'. Universidad de Murcia. Murcia. España
| | - Juan Tatay-Dualde
- Grupo de investigación Sanidad de Rumiantes. Departamento de Sanidad Animal. Facultad de Veterinaria. Campus de Excelencia Internacional 'Campus Mare Nostrum'. Universidad de Murcia. Murcia. España
| | - Ana García-Galán
- Grupo de investigación Sanidad de Rumiantes. Departamento de Sanidad Animal. Facultad de Veterinaria. Campus de Excelencia Internacional 'Campus Mare Nostrum'. Universidad de Murcia. Murcia. España
| | - Christian de la Fe
- Grupo de investigación Sanidad de Rumiantes. Departamento de Sanidad Animal. Facultad de Veterinaria. Campus de Excelencia Internacional 'Campus Mare Nostrum'. Universidad de Murcia. Murcia. España
| | - Juan C Corrales
- Grupo de investigación Sanidad de Rumiantes. Departamento de Sanidad Animal. Facultad de Veterinaria. Campus de Excelencia Internacional 'Campus Mare Nostrum'. Universidad de Murcia. Murcia. España
| | - Antonio Contreras
- Grupo de investigación Sanidad de Rumiantes. Departamento de Sanidad Animal. Facultad de Veterinaria. Campus de Excelencia Internacional 'Campus Mare Nostrum'. Universidad de Murcia. Murcia. España
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Prats-van der Ham M, Tatay-Dualde J, de la Fe C, Paterna A, Sánchez A, Corrales JC, Contreras A, Gómez-Martín Á. Corrigendum to "Molecular resistance mechanisms of Mycoplasma agalactiae to macrolides and lincomycin" [Vet. Microbiol. 211 (2017) 135-140]. Vet Microbiol 2018; 214:155. [PMID: 29289399 DOI: 10.1016/j.vetmic.2017.12.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Miranda Prats-van der Ham
- Ruminant Health Research Group, Department of Animal Health, Faculty of Veterinary Sciences, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, Campus de Espinardo s/n., 30100, Murcia, Spain
| | - Juan Tatay-Dualde
- Ruminant Health Research Group, Department of Animal Health, Faculty of Veterinary Sciences, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, Campus de Espinardo s/n., 30100, Murcia, Spain
| | - Christian de la Fe
- Ruminant Health Research Group, Department of Animal Health, Faculty of Veterinary Sciences, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, Campus de Espinardo s/n., 30100, Murcia, Spain.
| | - Ana Paterna
- Ruminant Health Research Group, Department of Animal Health, Faculty of Veterinary Sciences, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, Campus de Espinardo s/n., 30100, Murcia, Spain
| | - Antonio Sánchez
- Ruminant Health Research Group, Department of Animal Health, Faculty of Veterinary Sciences, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, Campus de Espinardo s/n., 30100, Murcia, Spain
| | - Juan Carlos Corrales
- Ruminant Health Research Group, Department of Animal Health, Faculty of Veterinary Sciences, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, Campus de Espinardo s/n., 30100, Murcia, Spain
| | - Antonio Contreras
- Ruminant Health Research Group, Department of Animal Health, Faculty of Veterinary Sciences, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, Campus de Espinardo s/n., 30100, Murcia, Spain
| | - Ángel Gómez-Martín
- Grupo de Investigación Fisiopatología de la Reproducción, Universidad Cardenal Herrera-CEU, CEU Universities, Spain
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Tirado-Gonzalez I, Czlonka E, Nevmerzhitskaya A, Soetopo D, Bergonzani E, Mahmoud A, Contreras A, Jeremias I, Platzbecker U, Bourquin JP, Kloz U, Van der Hoeven F, Medyouf H. CRISPR/Cas9-edited NSG mice as PDX models of human leukemia to address the role of niche-derived SPARC. Leukemia 2017; 32:1049-1052. [PMID: 29209043 PMCID: PMC7703605 DOI: 10.1038/leu.2017.346] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- I Tirado-Gonzalez
- Georg-Speyer-Haus, Institute for Tumor Biology and Experimental Therapy, Frankfurt, Germany
| | - E Czlonka
- Georg-Speyer-Haus, Institute for Tumor Biology and Experimental Therapy, Frankfurt, Germany
| | - A Nevmerzhitskaya
- Georg-Speyer-Haus, Institute for Tumor Biology and Experimental Therapy, Frankfurt, Germany
| | - D Soetopo
- Georg-Speyer-Haus, Institute for Tumor Biology and Experimental Therapy, Frankfurt, Germany
| | - E Bergonzani
- Georg-Speyer-Haus, Institute for Tumor Biology and Experimental Therapy, Frankfurt, Germany
| | - A Mahmoud
- Georg-Speyer-Haus, Institute for Tumor Biology and Experimental Therapy, Frankfurt, Germany
| | - A Contreras
- Georg-Speyer-Haus, Institute for Tumor Biology and Experimental Therapy, Frankfurt, Germany
| | - I Jeremias
- Department of Apoptosis in Hematopoietic Stem Cells, Helmholtz Center Münich, German Center for Environmental Health (HMGU), Munich, Germany.,German Cancer Consortium, DKTK Partner Site Munich, Heidelberg, Germany
| | - U Platzbecker
- University Hospital Carl Gustav Carus, Technical University Dresden, Dresden, Germany.,German Cancer Consortium, DKTK Partner Site Dresden, Heidelberg, Germany
| | - J P Bourquin
- Division of Pediatric Oncology, University Children's Hospital, Zurich, Switzerland
| | - U Kloz
- Division of Pediatric Oncology, University Children's Hospital, Zurich, Switzerland
| | - F Van der Hoeven
- Transgenic Service, German Cancer Research Center, Heidelberg, Germany
| | - H Medyouf
- Georg-Speyer-Haus, Institute for Tumor Biology and Experimental Therapy, Frankfurt, Germany.,German Cancer Consortium, DKTK Partner Site Frankfurt/Mainz, Heidelberg, Germany.,Department of Hematology and Oncology, University Hospital Mannheim, Medical Faculty, University of Heidelberg, Mannheim, Germany
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Medel-Marabolí M, Romero J, Obreque-Slier E, Contreras A, Peña-Neira A. Effect of a commercial tannin on the sensorial temporality of astringency. Food Res Int 2017; 102:341-347. [DOI: 10.1016/j.foodres.2017.09.099] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Revised: 09/20/2017] [Accepted: 09/30/2017] [Indexed: 11/16/2022]
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29
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Prats-van der Ham M, Tatay-Dualde J, de la Fe C, Paterna A, Sánchez A, Corrales JC, Contreras A, Gómez-Martín Á. Molecular resistance mechanisms of Mycoplasma agalactiae to macrolides and lincomycin. Vet Microbiol 2017; 211:135-140. [DOI: 10.1016/j.vetmic.2017.10.012] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2017] [Revised: 10/11/2017] [Accepted: 10/12/2017] [Indexed: 11/16/2022]
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30
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Contreras A, Gómez-Martín A, Paterna A, Tatay-Dualde J, Prats-Van Der Ham M, Corrales JC, De La Fe C, Sánchez A. Epidemiological role of birds in the transmission and maintenance of zoonoses. REV SCI TECH OIE 2017; 35:845-862. [PMID: 28332645 DOI: 10.20506/rst.35.3.2574] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The risk of zoonoses spreading from birds to humans is lower, quantitatively speaking, than the risk of transmission between other host groups, because the two taxonomic groups share fewer pathogens. Nevertheless, birds have a number of epidemiological characteristics that make them extremely important hosts in the transmission and maintenance of zoonoses, including their susceptibility to pathogens that are extremely hazardous to humans (such as highly pathogenic avian influenza virus, West Nile virus and Chlamydia psittaci) and their ability to travel long distances, especially in the case of migratory birds. The fact that the human diet includes poultry products (meat, eggs and their by-products) also means that most human cases of foodborne zoonoses are infections of avian origin. Lastly, close contact between humans and pet birds or urban birds leads to interactions of public health concern. This article sets out to describe the main factors that determine the role of birds in the epidemiology of zoonotic infections.
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Carrasco P, Carrillo M, Bazley K, Vergara A, Contreras A. Foros virtuales y construcción de conocimiento en profesionales de la salud. Enfermería Universitaria 2017. [DOI: 10.1016/j.reu.2017.06.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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32
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Duque A, Martínez PJ, Giraldo A, Gualtero DF, Ardila CM, Contreras A, Duarte S, Lafaurie GI. Accuracy of cotinine serum test to detect the smoking habit and its association with periodontal disease in a multicenter study. Med Oral Patol Oral Cir Bucal 2017; 22:e425-e431. [PMID: 28578367 PMCID: PMC5549515 DOI: 10.4317/medoral.21292] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Accepted: 12/01/2016] [Indexed: 01/24/2023] Open
Abstract
Background The validity of the surveys on self-reported smoking status is often questioned because smokers underestimate cigarette use and deny the habit. It has been suggested that self-report should be accompanied by cotinine test. This report evaluates the usefulness of serum cotinine test to assess the association between smoking and periodontal status in a study with a large sample population to be used in studies with other serum markers in epidemiologic and periodontal medicine researches. Material and Methods 578 patients who were part of a multicenter study on blood biomarkers were evaluated about smoking and its relation to periodontal disease. Severity of periodontal disease was determinate using clinical attachment loss (CAL). Smoking was assessed by a questionnaire and a blood sample drawn for serum cotinine determination. Results The optimal cut-off point for serum cotinine was 10 ng/ml. Serum cotinine showed greater association with severity of CAL than self-report for mild-moderate CAL [OR 2.03 (CI95% 1.16-3.53) vs. OR 1.08 (CI95% 0.62-1.87) ] advanced periodontitis [OR 2.36 (CI95% 1.30- 4.31) vs. OR 2.06 (CI95% 0.97-4.38) ] and extension of CAL > 3 mm [ OR 1.78 (CI95% 1.16-1.71) vs. 1.37 (CI95% 0.89-2.11)]. When the two tests were evaluated together were not shown to be better than serum cotinine test. Conclusions Self-reported smoking and serum cotinine test ≥ 10ng/ml are accurate, complementary and more reliable methods to assess the patient’s smoking status and could be used in studies evaluating serum samples in large population and multicenter studies.
Clinical Relevance: The serum cotinine level is more reliable to make associations with the patient’s periodontal status than self-report questionnaire and could be used in multicenter and periodontal medicine studies. Key words:Biological markers, serum, cotinine, periodontitis, smoking.
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Affiliation(s)
- A Duque
- El Bosque University, Bogotá,
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Tatay-Dualde J, Prats-van der Ham M, de la Fe C, Paterna A, Sánchez A, Corrales JC, Contreras A, Gómez-Martín Á. Mutations in the quinolone resistance determining region conferring resistance to fluoroquinolones in Mycoplasma agalactiae. Vet Microbiol 2017; 207:63-68. [PMID: 28757041 DOI: 10.1016/j.vetmic.2017.06.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [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: 11/18/2016] [Revised: 05/29/2017] [Accepted: 06/03/2017] [Indexed: 11/15/2022]
Abstract
M. agalactiae is the main causative agent of contagious agalactia, against which antimicrobial treatment is the main applied control measure. Quinolones are an effective group of antimicrobials inhibiting the growth of M. agalactiae, but in the last years, various reports have demonstrated an increase of resistance in field isolates due to its massive use. Nevertheless, the molecular mechanisms involved in the acquisition of fluoroquinolones resistance in M. agalactiae have not been elucidated yet. Therefore, the aim of this work was to analyze the presence of DNA variations that could be related to changes in fluoroquinolone susceptibility. For this purpose, three M. agalactiae strains were selected to obtain in vitro resistant mutants against enrofloxacin, marbofloxacin and moxifloxacin and afterwards, partial sequences of their gyrA, gyrB, parC and parE genes were analyzed. In addition, a set of field isolates with different MIC values were also studied. Changes related to variations in fluoroquinolones susceptibility were found in gyrB, parC and parE. Specifically, gyrB genes were affected at the predicted amino acid position 424, four amino acid changes were detected in parC (positions 78, 79, 80 and 84) and two substitutions were reported in parE (amino acid positions 429 and 459). Mutations at predicted positions 424 of gyrB and 429 of parE are novel DNA changes which had not been previously described and, on the whole, parC was the first gene showing alterations when changes in susceptibility to fluoroquinolones occurred. Thus, this gene is the most suitable target for a rapid study of fluoroquinolone resistance in field isolates of M. agalactiae.
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Affiliation(s)
- Juan Tatay-Dualde
- Department of Animal Health, Faculty of Veterinary Sciences, Regional Campus of International Excellence "Campus Mare Nostrum", Universidad de Murcia, Campus de Espinardo s/n., 30100 Murcia, Spain
| | - Miranda Prats-van der Ham
- Department of Animal Health, Faculty of Veterinary Sciences, Regional Campus of International Excellence "Campus Mare Nostrum", Universidad de Murcia, Campus de Espinardo s/n., 30100 Murcia, Spain
| | - Christian de la Fe
- Department of Animal Health, Faculty of Veterinary Sciences, Regional Campus of International Excellence "Campus Mare Nostrum", Universidad de Murcia, Campus de Espinardo s/n., 30100 Murcia, Spain.
| | - Ana Paterna
- Department of Animal Health, Faculty of Veterinary Sciences, Regional Campus of International Excellence "Campus Mare Nostrum", Universidad de Murcia, Campus de Espinardo s/n., 30100 Murcia, Spain
| | - Antonio Sánchez
- Department of Animal Health, Faculty of Veterinary Sciences, Regional Campus of International Excellence "Campus Mare Nostrum", Universidad de Murcia, Campus de Espinardo s/n., 30100 Murcia, Spain
| | - Juan Carlos Corrales
- Department of Animal Health, Faculty of Veterinary Sciences, Regional Campus of International Excellence "Campus Mare Nostrum", Universidad de Murcia, Campus de Espinardo s/n., 30100 Murcia, Spain
| | - Antonio Contreras
- Department of Animal Health, Faculty of Veterinary Sciences, Regional Campus of International Excellence "Campus Mare Nostrum", Universidad de Murcia, Campus de Espinardo s/n., 30100 Murcia, Spain
| | - Ángel Gómez-Martín
- Department of Animal Health, Faculty of Veterinary Sciences, Regional Campus of International Excellence "Campus Mare Nostrum", Universidad de Murcia, Campus de Espinardo s/n., 30100 Murcia, Spain
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34
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Tatay-Dualde J, Prats-van der Ham M, de la Fe C, Paterna A, Sánchez A, Corrales JC, Contreras A, Tola S, Gómez-Martin Á. Antimicrobial susceptibility and multilocus sequence typing of Mycoplasma capricolum subsp. capricolum. PLoS One 2017; 12:e0174700. [PMID: 28346546 PMCID: PMC5367824 DOI: 10.1371/journal.pone.0174700] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2017] [Accepted: 03/13/2017] [Indexed: 11/19/2022] Open
Abstract
Mycoplasma capricolum subsp. capricolum is one of the causative agents of contagious agalactia (CA). Nevertheless, there is still a lack of information about its antimicrobial susceptibility and genetic characteristics. Therefore, the aim of this work was to study the antimicrobial and genetic variability of different Mycoplasma capricolum subsp. capricolum field isolates. For this purpose, the growth inhibition effect of 18 antimicrobials and a multilocus sequence typing (MLST) scheme based on five housekeeping genes (fusA, glpQ, gyrB, lepA and rpoB) were performed on 32 selected field isolates from Italy and Spain.The results showed a wide range of growth inhibitory effects for almost all the antimicrobials studied. Macrolides presented lower efficacy inhibiting Mcc growth than in previous works performed on other CA-causative mycoplasmas. Erythromycin was not able to inhibit the growth of any of the studied strains, contrary to doxycycline, which inhibited the growth of all of them from low concentrations. On the other hand, the study of the concatenated genes revealed a high genetic variability among the different Mcc isolates. Hence, these genetic variations were greater than the ones reported in prior works on other mycoplasma species.
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Affiliation(s)
- Juan Tatay-Dualde
- Department of Animal Health, Faculty of Veterinary Sciences, Regional Campus of International Excellence “Campus Mare Nostrum”, Universidad de Murcia, Campus de Espinardo s/n., Murcia, Spain
| | - Miranda Prats-van der Ham
- Department of Animal Health, Faculty of Veterinary Sciences, Regional Campus of International Excellence “Campus Mare Nostrum”, Universidad de Murcia, Campus de Espinardo s/n., Murcia, Spain
| | - Christian de la Fe
- Department of Animal Health, Faculty of Veterinary Sciences, Regional Campus of International Excellence “Campus Mare Nostrum”, Universidad de Murcia, Campus de Espinardo s/n., Murcia, Spain
- * E-mail:
| | - Ana Paterna
- Department of Animal Health, Faculty of Veterinary Sciences, Regional Campus of International Excellence “Campus Mare Nostrum”, Universidad de Murcia, Campus de Espinardo s/n., Murcia, Spain
| | - Antonio Sánchez
- Department of Animal Health, Faculty of Veterinary Sciences, Regional Campus of International Excellence “Campus Mare Nostrum”, Universidad de Murcia, Campus de Espinardo s/n., Murcia, Spain
| | - Juan Carlos Corrales
- Department of Animal Health, Faculty of Veterinary Sciences, Regional Campus of International Excellence “Campus Mare Nostrum”, Universidad de Murcia, Campus de Espinardo s/n., Murcia, Spain
| | - Antonio Contreras
- Department of Animal Health, Faculty of Veterinary Sciences, Regional Campus of International Excellence “Campus Mare Nostrum”, Universidad de Murcia, Campus de Espinardo s/n., Murcia, Spain
| | - Sebastiana Tola
- Istituto Zooprofilattico Sperimentale della Sardegna “G. Pegreffi”, Sassari, Italy
| | - Ángel Gómez-Martin
- Department of Animal Health, Faculty of Veterinary Sciences, Regional Campus of International Excellence “Campus Mare Nostrum”, Universidad de Murcia, Campus de Espinardo s/n., Murcia, Spain
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Contreras A, Altschiller J, Gantz A, Barrera A, Yanine N, Cosmelli R, Gaete C, Cifuentes J. Evaluation of condylar positioning in bimaxillary orthognathic surgery using intraoperative cone-beam computed tomography. Int J Oral Maxillofac Surg 2017. [DOI: 10.1016/j.ijom.2017.02.1087] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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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Contreras A, Adbaje J, Jerez D, Yanine N, Gantz A, Barrera A, Cifuentes J, Politis C. Non-grafted sagittal split osteotomy versus grafted sagittal split osteotomy to reduce mandibular lower border defects in orthognathic surgery. A cohort study. Int J Oral Maxillofac Surg 2017. [DOI: 10.1016/j.ijom.2017.02.1086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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37
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Sánchez A, Prats-van der Ham M, Tatay-Dualde J, Paterna A, de la Fe C, Gómez-Martín Á, Corrales JC, Contreras A. Zoonoses in Veterinary Students: A Systematic Review of the Literature. PLoS One 2017; 12:e0169534. [PMID: 28052113 PMCID: PMC5215727 DOI: 10.1371/journal.pone.0169534] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Accepted: 12/19/2016] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Veterinary students face diverse potential sources of zoonotic pathogens since the first years of their academic degree. Such sources include different animal species and pathologic materials which are used at university facilities as well as commercial clinics, farms and other external facilities. OBJECTIVES The present study utilizes a systematic review of the literature to identify zoonoses described in veterinary students. DATA SOURCES Web of Science and PubMed. RESULTS Of the 1,254 titles produced by the bibliographic search, 62 were included in this review. Whereas 28 of these articles (45.2%) described individual cases or outbreaks, the remaining 34 (54.8%) reported serological results. The zoonotic etiological agents described were bacteria, in 39 studies (62.9%), parasites, in 12 works (19.4%), virus, in 9 studies (14.5%) and fungi, in 2 (3.2%) of the selected articles. The selected literature included references from 24 different countries and covered the time period of the last 55 years. LIMITATIONS The fact that common cases of disease or cases of little clinical importance without collective repercussions are not usually published in peer-reviewed journals limits the possibility to reach conclusions from a quantitative point of view. Furthermore, most of the selected works (66.1%) refer to European or North American countries, and thus, the number of cases due to pathogens which could appear more frequently in non-occidental countries might be underestimated. CONCLUSIONS/IMPLICATIONS The results of the present systematic review highlight the need of including training in zoonotic diseases since the first years of Veterinary Science degrees, especially focusing on biosecurity measures (hygienic measures and the utilization of the personal protective equipment), as a way of protecting students, and on monitoring programs, so as to adequately advise affected students or students suspicious of enduring zoonoses.
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Affiliation(s)
- Antonio Sánchez
- Research Group of Ruminant Health, Animal Health Department, Veterinary School, Regional Campus of International Excellence ‘Campus Mare Nostrum’, Murcia University, Spain
| | - Miranda Prats-van der Ham
- Research Group of Ruminant Health, Animal Health Department, Veterinary School, Regional Campus of International Excellence ‘Campus Mare Nostrum’, Murcia University, Spain
| | - Juan Tatay-Dualde
- Research Group of Ruminant Health, Animal Health Department, Veterinary School, Regional Campus of International Excellence ‘Campus Mare Nostrum’, Murcia University, Spain
| | - Ana Paterna
- Research Group of Ruminant Health, Animal Health Department, Veterinary School, Regional Campus of International Excellence ‘Campus Mare Nostrum’, Murcia University, Spain
| | - Christian de la Fe
- Research Group of Ruminant Health, Animal Health Department, Veterinary School, Regional Campus of International Excellence ‘Campus Mare Nostrum’, Murcia University, Spain
| | - Ángel Gómez-Martín
- Research Group of Ruminant Health, Animal Health Department, Veterinary School, Regional Campus of International Excellence ‘Campus Mare Nostrum’, Murcia University, Spain
| | - Juan C. Corrales
- Research Group of Ruminant Health, Animal Health Department, Veterinary School, Regional Campus of International Excellence ‘Campus Mare Nostrum’, Murcia University, Spain
| | - Antonio Contreras
- Research Group of Ruminant Health, Animal Health Department, Veterinary School, Regional Campus of International Excellence ‘Campus Mare Nostrum’, Murcia University, Spain
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Sautrot-Ba P, Contreras A, Abbad Andaloussi S, Coradin T, Hélary C, Razza N, Sangermano M, Mazeran PE, Malval JP, Versace DL. Eosin-mediated synthesis of polymer coatings combining photodynamic inactivation and antimicrobial properties. J Mater Chem B 2017; 5:7572-7582. [DOI: 10.1039/c7tb01358b] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Eosin-derived coatings exhibiting photodynamic bacterial inactivation and antibacterial properties.
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Affiliation(s)
- P. Sautrot-Ba
- Université Paris-Est Créteil (UPEC) – ICMPE UMR CNRS 7182
- 94010 Créteil cedex
- France
| | - A. Contreras
- Université Paris-Est Créteil (UPEC) – ICMPE UMR CNRS 7182
- 94010 Créteil cedex
- France
| | | | - T. Coradin
- Sorbonne Universités
- UPMC Univ Paris 06
- CNRS
- Collège de France
- UMR 7574
| | - C. Hélary
- Sorbonne Universités
- UPMC Univ Paris 06
- CNRS
- Collège de France
- UMR 7574
| | - N. Razza
- Politecnico di Torino
- Dipartimento di Scienza Applicata e Tecnologia
- 10129 Torino
- Italy
| | - M. Sangermano
- Politecnico di Torino
- Dipartimento di Scienza Applicata e Tecnologia
- 10129 Torino
- Italy
| | - P.-E. Mazeran
- Laboratoire Roberval
- CNRS
- UMR 7337
- Sorbonne Universités
- Université de technologie de Compiègne
| | - J.-P. Malval
- Institut de Science des Matériaux de Mulhouse
- IS2M-LRC 7228
- 68057 Mulhouse
- France
| | - D.-L. Versace
- Université Paris-Est Créteil (UPEC) – ICMPE UMR CNRS 7182
- 94010 Créteil cedex
- France
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Tatay-Dualde J, Prats-van der Ham M, de la Fe C, Gómez-Martín Á, Paterna A, Corrales JC, Contreras A, Sánchez A. Multilocus sequence typing of Mycoplasma mycoides subsp. capri to assess its genetic variability in a contagious agalactia endemic area. Vet Microbiol 2016; 191:60-4. [PMID: 27374908 DOI: 10.1016/j.vetmic.2016.06.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2016] [Revised: 05/04/2016] [Accepted: 06/06/2016] [Indexed: 11/18/2022]
Abstract
Mycoplasma mycoides subsp. capri (Mmc) is one of the main causative agents of caprine contagious agalactia. Besides, the absence of accurate control methods eases its dispersion between different herds within endemic areas of this disease. In this context, there is a need to implement molecular typing schemes which offer valuable information useful to establish control measures and enables the surveillance of this pathogen. The aim of this study was to assess the genetic variability of different strains of Mmc from a contagious agalactia endemic area through multilocus sequence typing (MLST). For this purpose, five house-keeping genes (fusA, glpQ, gyrB, lepA, rpoB) from 39 field isolates were analysed. These isolates were obtained from different geographic areas of Spain, between the years 2004 and 2015. The results obtained in this study suggest that the selected MLST scheme could be a useful technique to monitor the genetic variability of Mmc in endemic areas. Despite the significant differences found between the assessed field isolates, they could be classified according to their geographical origin. Moreover, it was also possible to detect genetic differences between Mmc strains coming from the same herd at the same sampling time, which may need to be taken into consideration when designing or arranging prophylactic strategies.
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Affiliation(s)
- Juan Tatay-Dualde
- Ruminant Health Research Group, Department of Animal Health, Faculty of Veterinary Sciences, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, Campus de Espinardo s/n., 30100 Murcia, Spain
| | - Miranda Prats-van der Ham
- Ruminant Health Research Group, Department of Animal Health, Faculty of Veterinary Sciences, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, Campus de Espinardo s/n., 30100 Murcia, Spain
| | - Christian de la Fe
- Ruminant Health Research Group, Department of Animal Health, Faculty of Veterinary Sciences, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, Campus de Espinardo s/n., 30100 Murcia, Spain.
| | - Ángel Gómez-Martín
- Ruminant Health Research Group, Department of Animal Health, Faculty of Veterinary Sciences, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, Campus de Espinardo s/n., 30100 Murcia, Spain
| | - Ana Paterna
- Ruminant Health Research Group, Department of Animal Health, Faculty of Veterinary Sciences, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, Campus de Espinardo s/n., 30100 Murcia, Spain
| | - Juan Carlos Corrales
- Ruminant Health Research Group, Department of Animal Health, Faculty of Veterinary Sciences, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, Campus de Espinardo s/n., 30100 Murcia, Spain
| | - Antonio Contreras
- Ruminant Health Research Group, Department of Animal Health, Faculty of Veterinary Sciences, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, Campus de Espinardo s/n., 30100 Murcia, Spain
| | - Antonio Sánchez
- Ruminant Health Research Group, Department of Animal Health, Faculty of Veterinary Sciences, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, Campus de Espinardo s/n., 30100 Murcia, Spain
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Prats-van der Ham M, Tatay-Dualde J, de la Fe C, Paterna A, Sánchez A, Corrales JC, Contreras A, Gómez-Martín Á. Presence of Mycoplasma agalactiae in semen of naturally infected asymptomatic rams. Theriogenology 2016; 86:791-4. [PMID: 27045625 DOI: 10.1016/j.theriogenology.2016.02.033] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [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: 11/19/2015] [Accepted: 02/27/2016] [Indexed: 11/28/2022]
Abstract
The purpose of the present study was to assess the presence of Mycoplasma agalactiae (Ma), the main causative agent of ovine contagious agalactia (CA), in semen of naturally infected rams. Therefore, semen samples from 167 rams residing in three different artificial insemination (AI) centers of a CA-endemic area were studied by microbiological and molecular techniques. In addition, serial ejaculates from the same rams were evaluated to determine the excretion dynamics of Ma. Of the 384 samples studied, Ma was detected in 56 (14.58%) which belonged to 44 different rams (26.35%). These findings confirm the ability of Ma to be excreted in semen of asymptomatic rams. Furthermore, these results also evidence the presence of these asymptomatic carriers of Ma in ovine AI centers, representing a serious health risk regarding the spread and maintenance of CA, especially in endemic areas. Moreover, the excretion of Ma in semen also points to the risk of venereal transmission of this disease. The current results highlight the need to implement control measures to prevent the admission of infected rams in AI centers and the necessity to continuously monitor semen samples to effectively detect infected individuals.
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Affiliation(s)
- Miranda Prats-van der Ham
- Grupo de Investigación Sanidad de Rumiantes, Facultad de Veterinaria, Departamento de Sanidad Animal, Campus Regional de Excelencia Internacional "Campus Mare Nostrum", Universidad de Murcia, Murcia, España
| | - Juan Tatay-Dualde
- Grupo de Investigación Sanidad de Rumiantes, Facultad de Veterinaria, Departamento de Sanidad Animal, Campus Regional de Excelencia Internacional "Campus Mare Nostrum", Universidad de Murcia, Murcia, España
| | - Christian de la Fe
- Grupo de Investigación Sanidad de Rumiantes, Facultad de Veterinaria, Departamento de Sanidad Animal, Campus Regional de Excelencia Internacional "Campus Mare Nostrum", Universidad de Murcia, Murcia, España.
| | - Ana Paterna
- Grupo de Investigación Sanidad de Rumiantes, Facultad de Veterinaria, Departamento de Sanidad Animal, Campus Regional de Excelencia Internacional "Campus Mare Nostrum", Universidad de Murcia, Murcia, España
| | - Antonio Sánchez
- Grupo de Investigación Sanidad de Rumiantes, Facultad de Veterinaria, Departamento de Sanidad Animal, Campus Regional de Excelencia Internacional "Campus Mare Nostrum", Universidad de Murcia, Murcia, España
| | - Juan C Corrales
- Grupo de Investigación Sanidad de Rumiantes, Facultad de Veterinaria, Departamento de Sanidad Animal, Campus Regional de Excelencia Internacional "Campus Mare Nostrum", Universidad de Murcia, Murcia, España
| | - Antonio Contreras
- Grupo de Investigación Sanidad de Rumiantes, Facultad de Veterinaria, Departamento de Sanidad Animal, Campus Regional de Excelencia Internacional "Campus Mare Nostrum", Universidad de Murcia, Murcia, España
| | - Ángel Gómez-Martín
- Grupo de Investigación Sanidad de Rumiantes, Facultad de Veterinaria, Departamento de Sanidad Animal, Campus Regional de Excelencia Internacional "Campus Mare Nostrum", Universidad de Murcia, Murcia, España
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Ladron-De-Guevara D, Zuñiga-Fajuri A, Campos M, Rios L, Solari F, Kuester G, Martinez D, Sepulveda M, Galvez M, Las Heras F, Perez C, Alvarez C, Fabres L, Varela X, Otayza F, Contreras A, Rojas G. Diagnostic value of pre-surgical F18-FDG PET/CT and MRI in refractory focal epilepsy. Histopathological and surgical outcome correlation. J Neurol Sci 2015. [DOI: 10.1016/j.jns.2015.08.144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Tatay-Dualde J, Sánchez A, Prats-van der Ham M, Gómez-Martín A, Paterna A, Corrales JC, de la Fe C, Contreras A, Amores J. Sensitivity of two methods to detect Mycoplasma agalactiae in goat milk. Ir Vet J 2015; 68:21. [PMID: 26351565 PMCID: PMC4562104 DOI: 10.1186/s13620-015-0049-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2014] [Accepted: 09/03/2015] [Indexed: 02/19/2023] Open
Abstract
BACKGROUND Laboratory diagnostic techniques able to detect Mycoplasma agalactiae are essential in contagious agalactia in dairy goats. This study was designed: 1) to determine the detection limits of PCR and culture in goat milk samples, 2) to examine the effects of experimental conditions including the DNA extraction method, PCR technique and storage conditions (fresh versus frozen stored milk samples) on these methods and 3), to establish agreement between PCR and culture techniques using milk samples from goats with mastitis in commercial dairy herds. The study was conducted both on artificially inoculated and field samples. RESULTS Our findings indicate that culture is able to detect M. agalactiae in goat milk at lower concentrations than PCR. Qualitative detection of M.agalactiae by culture and PCR was not affected by sample freezing, though the DNA extraction method used significantly affected the results of the different PCR protocols. When clinical samples were used, both techniques showed good agreement. CONCLUSIONS The results from this study indicate that both culture and PCR are able to detect M. agalactiae in clinical goat mastitis samples. However, in bulk tank milk samples with presumably lower M. agalactiae concentrations, culture is recommended within the first 24 h of sample collection due to its lower limit of detection. To improve the diagnostic sensitivity of PCR in milk samples, there is a need to increase the efficiency of extracting DNA from milk samples using protocols including a previous step of enzymatic digestion.
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Affiliation(s)
- J Tatay-Dualde
- Research Group on Ruminant Health, Animal Health Department, School of Veterinary Sciences, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, 30071 Murcia, Spain
| | - A Sánchez
- Research Group on Ruminant Health, Animal Health Department, School of Veterinary Sciences, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, 30071 Murcia, Spain
| | - M Prats-van der Ham
- Research Group on Ruminant Health, Animal Health Department, School of Veterinary Sciences, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, 30071 Murcia, Spain
| | - A Gómez-Martín
- Research Group on Ruminant Health, Animal Health Department, School of Veterinary Sciences, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, 30071 Murcia, Spain
| | - A Paterna
- Research Group on Ruminant Health, Animal Health Department, School of Veterinary Sciences, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, 30071 Murcia, Spain
| | - J C Corrales
- Research Group on Ruminant Health, Animal Health Department, School of Veterinary Sciences, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, 30071 Murcia, Spain
| | - C de la Fe
- Research Group on Ruminant Health, Animal Health Department, School of Veterinary Sciences, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, 30071 Murcia, Spain
| | - A Contreras
- Research Group on Ruminant Health, Animal Health Department, School of Veterinary Sciences, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, 30071 Murcia, Spain
| | - J Amores
- Research Group on Ruminant Health, Animal Health Department, School of Veterinary Sciences, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, 30071 Murcia, Spain
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Contreras A, Hidalgo C, Schmidt S, Henschke PA, Curtin C, Varela C. The application of non-Saccharomyces yeast in fermentations with limited aeration as a strategy for the production of wine with reduced alcohol content. Int J Food Microbiol 2015; 205:7-15. [PMID: 25866906 DOI: 10.1016/j.ijfoodmicro.2015.03.027] [Citation(s) in RCA: 104] [Impact Index Per Article: 11.6] [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: 11/27/2014] [Revised: 03/10/2015] [Accepted: 03/24/2015] [Indexed: 10/23/2022]
Abstract
High alcohol concentrations reduce the complexity of wine sensory properties. In addition, health and economic drivers have the wine industry actively seeking technologies that facilitate the production of wines with lower alcohol content. One of the simplest approaches to achieve this aim would be the use of wine yeast strains which are less efficient at transforming grape sugars into ethanol, however commercially available wine yeasts produce very similar ethanol yields. Non-conventional yeast, in particular non-Saccharomyces species, have shown potential for producing wines with lower alcohol content. These yeasts are naturally present in the early stages of fermentation but in general are not capable of completing alcoholic fermentation. We have evaluated 48 non-Saccharomyces isolates to identify strains that, with limited aeration and in sequential inoculation regimes with S. cerevisiae, could be used for the production of wine with lower ethanol concentration. Two of these, Torulaspora delbrueckii AWRI1152 and Zygosaccharomyces bailii AWRI1578, enabled the production of wine with reduced ethanol concentration under limited aerobic conditions. Depending on the aeration regime T. delbrueckii AWRI1152 and Z. bailii AWRI1578 showed a reduction in ethanol concentration of 1.5% (v/v) and 2.0% (v/v) respectively, compared to the S. cerevisiae anaerobic control.
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Affiliation(s)
- A Contreras
- The Australian Wine Research Institute, PO Box 197, Glen Osmond, Adelaide, South Australia, 5064, Australia; Department of Chemical and Bioprocess Engineering, College of Engineering, Pontificia Universidad Católica de Chile, Casilla 306 Correo 22, Santiago, Chile
| | - C Hidalgo
- The Australian Wine Research Institute, PO Box 197, Glen Osmond, Adelaide, South Australia, 5064, Australia; Instituto de Investigaciones Agropecuarias, La Platina Research Station, Avenida Santa Rosa 11610, La Pintana, 8831314, Santiago, Chile
| | - S Schmidt
- The Australian Wine Research Institute, PO Box 197, Glen Osmond, Adelaide, South Australia, 5064, Australia
| | - P A Henschke
- The Australian Wine Research Institute, PO Box 197, Glen Osmond, Adelaide, South Australia, 5064, Australia; School of Agriculture, Food and Wine, The University of Adelaide, PMB 1, Glen Osmond, SA 5064, Australia
| | - C Curtin
- The Australian Wine Research Institute, PO Box 197, Glen Osmond, Adelaide, South Australia, 5064, Australia
| | - C Varela
- The Australian Wine Research Institute, PO Box 197, Glen Osmond, Adelaide, South Australia, 5064, Australia.
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Acosta-Marin V, Acosta-Freites V, Contreras A, Ravelo R, Fuenmayor G, Marin C, Ramirez A, Acosta-Marin M, Perez-Fuentes J, Longobardi I, Esteves H. Oncoplastic breast surgery: initial experience at the Centro Clinico de Estereotaxia-CECLINES, Caracas, Venezuela. Ecancermedicalscience 2014; 8:470. [PMID: 25374618 PMCID: PMC4203471 DOI: 10.3332/ecancer.2014.470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2014] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND Breast-conserving surgery (BCS) may sometimes lead to deformities in the remaining breast. Oncoplastic surgery (OPS) aims to improve our aesthetic results even in the case of major volume resections. The purpose of this study is to provide an objective evaluation of our initial experience with OPS, mainly based on the levels of satisfaction reported by both patients and surgeons. PATIENTS AND METHODS This prospective study was performed at CECLINES in Caracas, Venezuela, between January 2011 and October 2012. It involved 107 consecutive patients in two groups: 52 patients with level II OPS versus 55 patients with 'standard' BCS (SBCS). We evaluated the level of satisfaction and cosmetic outcome at 6 and 12 months post-operation using a score from 1 (bad) to 5 (excellent). The cosmetic score was recorded during the follow-up by the surgeon, by phone calls, and photographs were reviewed by a panel of four observers. RESULTS The participation rate in the cosmetic outcome/level of satisfaction evaluation was 100% at 6 months and 96.2% at 12 months. The average tumour size was 23 mm [standard deviation (SD): 13.5] for the OPS group versus 17.6 mm (SD: 8.3) for the SBCS group (p = 0.017). The average weight for the surgical specimen was 101 g (range: 30-512 g) in the OPS group versus 60.4 g (range: 20-135 g) in the SBCS group (p = 0.004). The OPS techniques most performed were round block 40.3% (21/52), inverted T mammoplasty 26.8% (14/52) and vertical scar mammoplasty 15.3% (8/52). Of all the patients, 51.9% (27/52) had symmetrisation procedures performed distributed according to the period of the study: 77.2% (17/22) in 2011, 56.6% (17/30) in 2012, and 18.1% (6/33) in 2013. The rate of complications was 5.7% (3/52) in the OPS group and 0% for the SBCS group (p < 0.005). The average cosmetic score at 6 months by patients in the OPS group was 4.4; patient satisfaction scores of 4 (good) and 5 (excellent) were 88.4%. In the SBCS group at 6 months, the mean score reported by patients was 4.2, with scores 4-5 being 83.4% (p = 0.644). The cosmetic score by surgeons in the OPS group at 6 months was 4.5; the surgeon satisfaction scores of 4-5 were 94.2%. In the SBCS group, the surgeons' mean score at 6 months was 4.1, with 84.5% of scores being 4 or 5 (p < 0.005). The final cosmetic score by patients in the OPS group at 12 months was 4.5; patient satisfaction scores of 4-5 were 90.4%. In the SBCS group, the final mean score at 12 months by patients was 4.2, with 77.5% of scores being 4 or 5 (p < 0.005). The final cosmetic score by surgeons in the OPS group at 12 months was 4.5; surgeon satisfaction scores of 4-5 were 92.3%. In the SBCS group, the surgeons' final mean score at 12 months was 4.1, with 84.5% of scores being 4 or 5 (p < 0.005). CONCLUSIONS OPS provides good satisfaction rates. An SBCS when an OPS is not indicated mostly results in good satisfaction levels and cosmetic scores. Usually, the results remain stable after 6 months. The use of OPS allows the excision of bigger lesions and surgical specimens. Symmetrisation procedures are not always required. With the appropriate patient selection, the rate of complications is low for both OPS and SBCS.
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Affiliation(s)
- V Acosta-Marin
- Breast Surgery Department, Centro Clinico de Estereotaxia-CECLINES, Caracas, Venezuela
| | - V Acosta-Freites
- Breast Surgery Department, Centro Clinico de Estereotaxia-CECLINES, Caracas, Venezuela
| | - A Contreras
- Breast Surgery Department, Centro Clinico de Estereotaxia-CECLINES, Caracas, Venezuela
| | - R Ravelo
- Breast Surgery Department, Centro Clinico de Estereotaxia-CECLINES, Caracas, Venezuela
| | - G Fuenmayor
- Breast Surgery Department, Centro Clinico de Estereotaxia-CECLINES, Caracas, Venezuela
| | - C Marin
- Breast Pathology Department, Centro Clinico de Estereotaxia-CECLINES, Caracas, Venezuela
| | - A Ramirez
- Breast Pathology Department, Centro Clinico de Estereotaxia-CECLINES, Caracas, Venezuela
| | - M Acosta-Marin
- Breast Pathology Department, Centro Clinico de Estereotaxia-CECLINES, Caracas, Venezuela
| | - J Perez-Fuentes
- Breast Imaging Department, Centro Clinico de Estereotaxia-CECLINES, Caracas, Venezuela
| | - I Longobardi
- Breast Imaging Department, Centro Clinico de Estereotaxia-CECLINES, Caracas, Venezuela
| | - H Esteves
- Breast Nurse Department, Centro Clinico de Estereotaxia-CECLINES, Caracas, Venezuela
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Binia A, Contreras A, Canizales-Quinteros S, Acuña Alonzo V, Tejero M, Silva-Zolezzi I. PP207-SUN: Geographic and Ethnic Distribution of Single Nucleotide Polymorphisms Within Genes of the Folate/Homocysteine Pathway Metabolism. Clin Nutr 2014. [DOI: 10.1016/s0261-5614(14)50249-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Paterna A, Contreras A, Gómez-Martín A, Amores J, Tatay-Dualde J, Prats-van der Ham M, Corrales J, Sánchez A, De la Fe C. The diagnosis of mastitis and contagious agalactia in dairy goats. Small Rumin Res 2014. [DOI: 10.1016/j.smallrumres.2013.12.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Freigeiro D, Arancibia A, Dibar E, Contreras A, Garcia J, Castellanos M. Is it Possible to Work together in Latin America? Creation of a Latin American Consortium (CLEHOP). Klin Padiatr 2014. [DOI: 10.1055/s-0034-1371143] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Ramírez JH, Parra B, Gutierrez S, Arce RM, Jaramillo A, Ariza Y, Contreras A. Biomarkers of cardiovascular disease are increased in untreated chronic periodontitis: a case control study. Aust Dent J 2014; 59:29-36. [DOI: 10.1111/adj.12139] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/03/2013] [Indexed: 11/29/2022]
Affiliation(s)
- JH Ramírez
- Periodontal Medicine Research Group; Dentistry School; Universidad del Valle; Cali Colombia
- School of Health Sciences; Universidad del Valle; Cali Colombia
| | - B Parra
- Department of Microbiology; School of Basic Sciences; Universidad del Valle; Colombia
| | - S Gutierrez
- Periodontal Medicine Research Group; Dentistry School; Universidad del Valle; Cali Colombia
| | - RM Arce
- Department of Periodontics; Georgia Regents University; Augusta GA USA
| | - A Jaramillo
- Periodontal Medicine Research Group; Dentistry School; Universidad del Valle; Cali Colombia
| | - Y Ariza
- School of Health Sciences; Universidad del Valle; Cali Colombia
| | - A Contreras
- Periodontal Medicine Research Group; Dentistry School; Universidad del Valle; Cali Colombia
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Contreras A, Herrera S, Wang T, Mayer I, Forero A, Nanda R, Goetz M, Chang JC, Pavlick AC, Fuqua SAW, Gutierrez C, Hilsenbeck SG, Li MM, Osborne CK, Schiff R, Rimawi MF. Abstract PD1-2: PIK3CA mutations and/or low PTEN predict resistance to combined anti-HER2 therapy with lapatinib and trastuzumab and without chemotherapy in TBCRC006, a neoadjuvant trial of HER2-positive breast cancer patients. Cancer Res 2013. [DOI: 10.1158/0008-5472.sabcs13-pd1-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
We have recently reported that in patients with HER2-positive breast cancer, neoadjuvant targeted therapy with lapatinib and trastuzumab to more completely block the HER receptor layer, combined with endocrine therapy (in ER-positive tumors) and without chemotherapy led to a substantial 27% pathologic complete response (pCR) rate in the breast. Activation of downstream signaling pathways may lead to resistance to therapies targeting the HER pathway receptors. Aberrant activation of the PI3K pathway via decreased levels of PTEN and/or the presence of activating PIK3CA mutations has been implicated in resistance to targeted anti-HER2 therapy, but results of clinical trials are all confounded by the co-administration of chemotherapy and are inconsistent. We sought to clarify the role of these variables in predicting pCR, a surrogate for long-term outcome, in patients treated with potent targeted therapy alone in a prospective Phase II neoadjuvant trial in patients with HER2-positive breast cancer.
Patients with large tumors (median 6 cm) were given 12 weeks of lapatinib plus trastuzumab followed by surgery (Rimawi et al. JCO, 2013). Serial tissue biopsies were obtained from study participants. For this study, we focused on baseline pre-treatment characteristics. PTEN protein levels were measured by IHC and scored using the H-score. PIK3CA mutations were identified on extracted DNA using multiplex PCR with targeted next generation sequencing (the Ion Torrent 50-gene cancer mutation panel).
Of 64 evaluable patients, tissue was available on 59 for PTEN IHC, and sufficient DNA was available on 33 for the mutation panel. PTEN median H-score was 100 (range 0-300). PTEN status when dichotomized by the median was correlated with pCR (32% in high PTEN vs. 9% in low PTEN, p = 0.04). Activating PIK3CA mutations were identified in 12 out of 33 tumors (36%; 3 mutations in the helical and 9 in the catalytic domain) and were independent of ER status. None of the patients whose tumors harbored a PIK3CA mutation achieved pCR (p = 0.06). There was no association between PTEN status and PIK3CA mutation suggesting they are independent variables (p = 0.44). When PIK3CA mutations were considered together with PTEN status, there were 31 cases with data on both. The overall pCR rate in this cohort was 16% (lower than pCR rate observed in the overall trial). However, 0/17 cases (0%) with a mutation and/or PTEN low expression (<100 H score) had a pCR compared to 5/14 cases (36%) with PI3KCA wild type and high PTEN levels (p = 0.01).
We conclude that PI3K pathway activation downstream of HER2 as a result of either low PTEN or activating PIK3CA mutation results in resistance to the combination of lapatinib and trastuzumab. This is the first report on patient tissue samples from a neoadjuvant trial using the combination of lapatinib and trastuzumab without chemotherapy. If validated in a larger cohort, our findings suggest that patients with HER2 positive tumors and who also harbor aberrant downstream PI3K pathway activation may benefit from the addition of PI3K/Akt/mTOR inhibitors to potent HER2 blockade.
Citation Information: Cancer Res 2013;73(24 Suppl): Abstract nr PD1-2.
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Affiliation(s)
- A Contreras
- Baylor College of Medicine, Houston, TX; Vanderbilt University, Nashville, TN; University of Alabama in Birmingham, Birmingham, AL; University of Chicago, Chicago, IL; Mayo Clinic, Rochester, MN; The Methodist Hospital, Houston, TX
| | - S Herrera
- Baylor College of Medicine, Houston, TX; Vanderbilt University, Nashville, TN; University of Alabama in Birmingham, Birmingham, AL; University of Chicago, Chicago, IL; Mayo Clinic, Rochester, MN; The Methodist Hospital, Houston, TX
| | - T Wang
- Baylor College of Medicine, Houston, TX; Vanderbilt University, Nashville, TN; University of Alabama in Birmingham, Birmingham, AL; University of Chicago, Chicago, IL; Mayo Clinic, Rochester, MN; The Methodist Hospital, Houston, TX
| | - I Mayer
- Baylor College of Medicine, Houston, TX; Vanderbilt University, Nashville, TN; University of Alabama in Birmingham, Birmingham, AL; University of Chicago, Chicago, IL; Mayo Clinic, Rochester, MN; The Methodist Hospital, Houston, TX
| | - A Forero
- Baylor College of Medicine, Houston, TX; Vanderbilt University, Nashville, TN; University of Alabama in Birmingham, Birmingham, AL; University of Chicago, Chicago, IL; Mayo Clinic, Rochester, MN; The Methodist Hospital, Houston, TX
| | - R Nanda
- Baylor College of Medicine, Houston, TX; Vanderbilt University, Nashville, TN; University of Alabama in Birmingham, Birmingham, AL; University of Chicago, Chicago, IL; Mayo Clinic, Rochester, MN; The Methodist Hospital, Houston, TX
| | - M Goetz
- Baylor College of Medicine, Houston, TX; Vanderbilt University, Nashville, TN; University of Alabama in Birmingham, Birmingham, AL; University of Chicago, Chicago, IL; Mayo Clinic, Rochester, MN; The Methodist Hospital, Houston, TX
| | - JC Chang
- Baylor College of Medicine, Houston, TX; Vanderbilt University, Nashville, TN; University of Alabama in Birmingham, Birmingham, AL; University of Chicago, Chicago, IL; Mayo Clinic, Rochester, MN; The Methodist Hospital, Houston, TX
| | - AC Pavlick
- Baylor College of Medicine, Houston, TX; Vanderbilt University, Nashville, TN; University of Alabama in Birmingham, Birmingham, AL; University of Chicago, Chicago, IL; Mayo Clinic, Rochester, MN; The Methodist Hospital, Houston, TX
| | - SAW Fuqua
- Baylor College of Medicine, Houston, TX; Vanderbilt University, Nashville, TN; University of Alabama in Birmingham, Birmingham, AL; University of Chicago, Chicago, IL; Mayo Clinic, Rochester, MN; The Methodist Hospital, Houston, TX
| | - C Gutierrez
- Baylor College of Medicine, Houston, TX; Vanderbilt University, Nashville, TN; University of Alabama in Birmingham, Birmingham, AL; University of Chicago, Chicago, IL; Mayo Clinic, Rochester, MN; The Methodist Hospital, Houston, TX
| | - SG Hilsenbeck
- Baylor College of Medicine, Houston, TX; Vanderbilt University, Nashville, TN; University of Alabama in Birmingham, Birmingham, AL; University of Chicago, Chicago, IL; Mayo Clinic, Rochester, MN; The Methodist Hospital, Houston, TX
| | - MM Li
- Baylor College of Medicine, Houston, TX; Vanderbilt University, Nashville, TN; University of Alabama in Birmingham, Birmingham, AL; University of Chicago, Chicago, IL; Mayo Clinic, Rochester, MN; The Methodist Hospital, Houston, TX
| | - CK Osborne
- Baylor College of Medicine, Houston, TX; Vanderbilt University, Nashville, TN; University of Alabama in Birmingham, Birmingham, AL; University of Chicago, Chicago, IL; Mayo Clinic, Rochester, MN; The Methodist Hospital, Houston, TX
| | - R Schiff
- Baylor College of Medicine, Houston, TX; Vanderbilt University, Nashville, TN; University of Alabama in Birmingham, Birmingham, AL; University of Chicago, Chicago, IL; Mayo Clinic, Rochester, MN; The Methodist Hospital, Houston, TX
| | - MF Rimawi
- Baylor College of Medicine, Houston, TX; Vanderbilt University, Nashville, TN; University of Alabama in Birmingham, Birmingham, AL; University of Chicago, Chicago, IL; Mayo Clinic, Rochester, MN; The Methodist Hospital, Houston, TX
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Paterna A, Sánchez A, Gómez-Martín A, Corrales J, De la Fe C, Contreras A, Amores J. Short communication: In vitro antimicrobial susceptibility of Mycoplasma agalactiae strains isolated from dairy goats. J Dairy Sci 2013; 96:7073-7076. [DOI: 10.3168/jds.2012-6492] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2012] [Accepted: 07/31/2013] [Indexed: 11/19/2022]
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