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Serrano López J, Jiménez-Jiménez C, Chutipongtanate S, Serrano J, Rodríguez-Moreno M, Jiménez Á, Jiménez Y, G Pedrero S, Laínez D, Alonso-Domínguez JM, Llamas Sillero P, Piris MÁ, Sánchez-García J. High-throughput RNA sequencing transcriptome analysis of ABC-DLBCL reveals several tumor evasion strategies. Leuk Lymphoma 2022; 63:1861-1870. [PMID: 35379068 DOI: 10.1080/10428194.2022.2056173] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Activated B-cell (ABC) lymphoma, a distinct molecular entity within diffuse large B-cell lymphoma (DLBCL), remains highly incurable, showing a worse response to standard immunochemotherapy. The discouraging results obtained in several clinical trials using proteasome inhibitors, tyrosine kinase inhibitors, or immunomodulators, lead to an intense search for new, potentially druggable biomarkers in DLBCL. In this study, we designed an experimental strategy for DLBCL to discover high- and low-abundance RNA-seq-derived transcripts involved in the oncogenic phenotype in patients diagnosed with ABC-DLBCL. Based on the results of a comparative analysis, 79 DE genes and two enriched gene sets related to metabolism and immunity were selected. Genes related to drug resistance, anti-inflammatory response, and tumor-cell dissemination were found to be up-regulated, while tumor suppressor genes were down-regulated. Then, we searched for the perturbagens most suitable for gene expression profiling (GEP) by iLINCS-CMap. Herein, we present a novel experimental approach that connects the omics signature of DLBCL with potential drugs for more accurate treatments.
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Affiliation(s)
| | - Carla Jiménez-Jiménez
- Department of Chemistry in Pharmaceutical Sciences, School of Pharmacy, Universidad Complutense de Madrid, UCM, Instituto Investigación Sanitaria Hospital 12 de Octubre, Madrid, Spain.,CIBER-BBN, Networking Research Center on Bioengineering, Biomaterials and Nanomedicine, Madrid, Spain
| | - Somchai Chutipongtanate
- Departments of Pediatrics, Clinical Epidemiology and Biostatistics, Chakri Naruebodindra Medical Institute, Bangkok, Thailand.,Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Josefina Serrano
- Hematology Department, Reina Sofía University Hospital/Maimonides Biomedical Research Institute of Córdoba (IMIBIC)/University of Córdoba, Spain
| | | | - Álvaro Jiménez
- Genomics Unit, IMIBIC (Maimonides Biomedicas Research Institute of Cordoba), Reina Sofia University Hospital, University of Córdoba, Córdoba, Spain
| | - Yesenia Jiménez
- Immunology Department, IIS Fundación Jimenez Díaz, UAM, Madrid, Spain
| | - Sara G Pedrero
- Experimental Hematology Lab, IIS-Fundación Jimenez Díaz, UAM, Madrid, Spain
| | - Daniel Laínez
- Experimental Hematology Lab, IIS-Fundación Jimenez Díaz, UAM, Madrid, Spain
| | - Juan Manuel Alonso-Domínguez
- Experimental Hematology Lab, IIS-Fundación Jimenez Díaz, UAM, Madrid, Spain.,Hematology, Hospital Universitario Fundación Jimenez Díaz, Madrid, Spain
| | - Pilar Llamas Sillero
- Experimental Hematology Lab, IIS-Fundación Jimenez Díaz, UAM, Madrid, Spain.,Hematology, Hospital Universitario Fundación Jimenez Díaz, Madrid, Spain
| | | | - Joaquín Sánchez-García
- Hematology Department, Reina Sofía University Hospital/Maimonides Biomedical Research Institute of Córdoba (IMIBIC)/University of Córdoba, Spain
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Del Toro F, Sun H, Robinson C, Jiménez Á, Covielles E, Higuera T, Aguilar E, Tenllado F, Canto T. In planta vs viral expression of HCPro affects its binding of nonplant 21-22 nucleotide small RNAs, but not its preference for 5'-terminal adenines, or its effects on small RNA methylation. New Phytol 2022; 233:2266-2281. [PMID: 34942019 DOI: 10.1111/nph.17935] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 12/06/2021] [Indexed: 06/14/2023]
Abstract
Previous studies have found a correlation between the abilities of PVX vector-expressed HCPro variants to bind small RNAs (sRNAs), and to suppress silencing. Moreover, HCPro preferred to bind viral sRNAs of 21-22 nucleotides (nt) containing 5'-terminal adenines. This would require such viral sRNAs to have either different access to the suppressor than those of plant sequences, or different molecular properties. To investigate this preference further, we have used suppressor-competent or suppressor-deficient HCPro variants, expressed from either T-DNAs or potyvirus constructs. Then, the sRNAs generated in plants and associated with the purified HCPro variants were characterized. Marked differences were observed in the ratios of sRNAs of plant vs nonplant origin that bound to suppressor-competent HCPro, depending on the mode of its expression. Regardless of the means of expression, HCPro retained the same preference among the nonplant sRNAs of 21-22 nt for those with 5'-terminal adenines. Relative methylation levels of individual sRNAs were assessed, and the nonplant sRNAs were found to be significantly less methylated in the presence of the suppressor. Targeted binding of sRNAs based on size, 5'-terminal sequence and origin, together with affecting their methylation, could explain how HCPro counteracts silencing.
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Affiliation(s)
- Francisco Del Toro
- Department of Microbial and Plant Biotechnology, Margarita Salas Center for Biological Research, CIB-CSIC, Ramiro de Maeztu 9, Madrid, 28040, Spain
| | - Hao Sun
- Department of Microbial and Plant Biotechnology, Margarita Salas Center for Biological Research, CIB-CSIC, Ramiro de Maeztu 9, Madrid, 28040, Spain
| | - Carmen Robinson
- Department of Microbial and Plant Biotechnology, Margarita Salas Center for Biological Research, CIB-CSIC, Ramiro de Maeztu 9, Madrid, 28040, Spain
| | - Álvaro Jiménez
- Department of Microbial and Plant Biotechnology, Margarita Salas Center for Biological Research, CIB-CSIC, Ramiro de Maeztu 9, Madrid, 28040, Spain
| | - Eva Covielles
- Department of Microbial and Plant Biotechnology, Margarita Salas Center for Biological Research, CIB-CSIC, Ramiro de Maeztu 9, Madrid, 28040, Spain
| | - Tomás Higuera
- Department of Microbial and Plant Biotechnology, Margarita Salas Center for Biological Research, CIB-CSIC, Ramiro de Maeztu 9, Madrid, 28040, Spain
| | - Emmanuel Aguilar
- Department of Microbial and Plant Biotechnology, Margarita Salas Center for Biological Research, CIB-CSIC, Ramiro de Maeztu 9, Madrid, 28040, Spain
| | - Francisco Tenllado
- Department of Microbial and Plant Biotechnology, Margarita Salas Center for Biological Research, CIB-CSIC, Ramiro de Maeztu 9, Madrid, 28040, Spain
| | - Tomás Canto
- Department of Microbial and Plant Biotechnology, Margarita Salas Center for Biological Research, CIB-CSIC, Ramiro de Maeztu 9, Madrid, 28040, Spain
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Romero-Ruiz A, Pineda B, Ovelleiro D, Perdices-Lopez C, Torres E, Vazquez MJ, Guler I, Jiménez Á, Pineda R, Persano M, Romero-Baldonado C, Arjona JE, Lorente J, Muñoz C, Paz E, Garcia-Maceira FI, Arjona-Sánchez Á, Tena-Sempere M. Molecular diagnosis of polycystic ovary syndrome in obese and non-obese women by targeted plasma miRNA profiling. Eur J Endocrinol 2021; 185:637-652. [PMID: 34403358 DOI: 10.1530/eje-21-0552] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Indexed: 11/08/2022]
Abstract
OBJECTIVE Polycystic ovary syndrome (PCOS) is diagnosed based on the clinical signs, but its presentation is heterogeneous and potentially confounded by concurrent conditions, such as obesity and insulin resistance. miRNA have recently emerged as putative pathophysiological and diagnostic factors in PCOS. However, no reliable miRNA-based method for molecular diagnosis of PCOS has been reported. The aim of this study was to develop a tool for accurate diagnosis of PCOS by targeted miRNA profiling of plasma samples, defined on the basis of unbiased biomarker-finding analyses and biostatistical tools. METHODS A case-control PCOS cohort was cross-sectionally studied, including 170 women classified into four groups: non-PCOS/lean, non-PCOS/obese, PCOS/lean, and PCOS/obese women. High-throughput miRNA analyses were performed in plasma, using NanoString technology and a 800 human miRNA panel, followed by targeted quantitative real-timePCR validation. Statistics were applied to define optimal normalization methods, identify deregulated biomarker miRNAs, and build classification algorithms, considering PCOS and obesity as major categories. RESULTS The geometric mean of circulating hsa-miR-103a-3p, hsa-miR-125a-5p, and hsa-miR-1976, selected among 125 unchanged miRNAs, was defined as optimal reference for internal normalization (named mR3-method). Ten miRNAs were identified and validated after mR3-normalization as differentially expressed across the groups. Multinomial least absolute shrinkage and selection operator regression and decision-tree models were built to reliably discriminate PCOS vs non-PCOS, either in obese or non-obese women, using subsets of these miRNAs as performers. CONCLUSIONS We define herein a robust method for molecular classification of PCOS based on unbiased identification of miRNA biomarkers and decision-tree protocols. This method allows not only reliable diagnosis of non-obese women with PCOS but also discrimination between PCOS and obesity. CAPSULE We define a novel protocol, based on plasma miRNA profiling, for molecular diagnosis of PCOS. This tool not only allows proper discrimination of the condition in non-obese women but also permits distinction between PCOS and obesity, which often display overlapping clinical presentations.
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Affiliation(s)
- Antonio Romero-Ruiz
- Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Spain
- Department of Cell Biology, Physiology and Immunology, University of Córdoba, Córdoba, Spain
- Hospital Universitario Reina Sofia, Córdoba, Spain
| | - Beatriz Pineda
- Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Spain
- Hospital Universitario Reina Sofia, Córdoba, Spain
| | - David Ovelleiro
- Area of Cellular Biology, Department of Experimental Biology, University of Jaen, Jaen, Spain
| | - Cecilia Perdices-Lopez
- Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Spain
- Department of Cell Biology, Physiology and Immunology, University of Córdoba, Córdoba, Spain
- CIBER Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, Córdoba, Spain
| | - Encarnación Torres
- Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Spain
- Department of Cell Biology, Physiology and Immunology, University of Córdoba, Córdoba, Spain
- Hospital Universitario Reina Sofia, Córdoba, Spain
| | - María J Vazquez
- Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Spain
- Department of Cell Biology, Physiology and Immunology, University of Córdoba, Córdoba, Spain
- Hospital Universitario Reina Sofia, Córdoba, Spain
| | - Ipek Guler
- Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Spain
| | - Álvaro Jiménez
- Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Spain
| | - Rafael Pineda
- Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Spain
- Department of Cell Biology, Physiology and Immunology, University of Córdoba, Córdoba, Spain
| | - Mariasara Persano
- Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Spain
- Hospital Universitario Reina Sofia, Córdoba, Spain
| | | | | | - Juan Lorente
- Hospital Universitario Reina Sofia, Córdoba, Spain
| | - Concepción Muñoz
- Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Spain
- Hospital Universitario Reina Sofia, Córdoba, Spain
| | | | | | - Álvaro Arjona-Sánchez
- Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Spain
- Hospital Universitario Reina Sofia, Córdoba, Spain
| | - Manuel Tena-Sempere
- Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Spain
- Department of Cell Biology, Physiology and Immunology, University of Córdoba, Córdoba, Spain
- Hospital Universitario Reina Sofia, Córdoba, Spain
- CIBER Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, Córdoba, Spain
- Institute of Biomedicine, University of Turku, Turku, Finland
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Ferro P, Ortega-Pinazo J, Martínez B, Jiménez Á, Gómez-Zumaquero JM, Hortas ML, Díaz T. On the Use of Buffy or Whole Blood for Obtaining DNA of High Quality and Functionality: What Is the Best Option? Biopreserv Biobank 2019; 17:577-582. [PMID: 31429592 DOI: 10.1089/bio.2019.0024] [Citation(s) in RCA: 5] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Human biobanks are collections of biological samples and health information that allow the organization of biomedical research for upgrading the knowledge of human disorders from different diseases (cancer, allergies, rare diseases, etc.), and reach real answers for diagnosis and treatment. A wide range of samples can be stored in these biorepositories such as hair, nails, urine, tissue, whole blood, red blood cells, buffy coat, plasma, serum, DNA, and RNA. Among these, buffy coat and whole blood are widely used by researchers because they can obtain DNA and RNA from these matrices. Some preliminary studies have been performed on animals to evaluate the quality and functionality of the nucleic acids obtained from some of these matrices, although more in-depth studies are needed in this area. In this study, blood samples extracted by venipuncture from 30 healthy volunteers were used to obtain DNA from buffy coat and whole blood. The purity and integrity of the nucleic acids obtained were assessed by spectrophotometry, fluorimetry, and agarose electrophoresis, and functionality was assessed by PCR and real-time PCR. Another aspect tested in this study was based on the comparison between short-term and long-term storage at -80°C and fresh samples from both matrices to evaluate the storage conditions at the biobank. Results showed differences in the yield obtained from both matrices as a function of the storage time, although the functionality of all the obtained DNA remained intact.
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Affiliation(s)
- Pedro Ferro
- Andalusian Public Health System Biobank, Instituto de Investigación Biomédica de Málaga (IBIMA), Malaga, Spain
| | - Jesús Ortega-Pinazo
- Neuroimmunology and Neuroinflammation Group, Instituto de Investigación Biomédica de Málaga (IBIMA), UGC Neurociencias, Hospital Regional Universitario de Málaga, Malaga, Spain
| | - Beatriz Martínez
- Andalusian Public Health System Biobank, Instituto de Investigación Biomédica de Málaga (IBIMA), Malaga, Spain
| | - Álvaro Jiménez
- Andalusian Public Health System Biobank, Instituto de Investigación Biomédica de Málaga (IBIMA), Malaga, Spain
| | | | | | - Tatiana Díaz
- Andalusian Public Health System Biobank, Instituto de Investigación Biomédica de Málaga (IBIMA), Malaga, Spain
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Olarte-González G, Vela-Vargas IM, Jiménez Á. Primer Reporte de leucismo en Artibeus lituratus (Olfers, 1818) (Phyllostomidae: Stenodermatinae) en el Caribe colombiano. MaNo 2014. [DOI: 10.47603/manovol1n1.7-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
El leucismo es una hipo-pigmentación del tegumento en el que el individuo presenta parches irregulares o incluso la totalidad del cuerpo despigmentado, pero mantiene la coloración normal de los ojos y garras, lo cual puede ser descrito erróneamente como albinismo parcial (Roncancio & Ramírez-Chaves 2008, Marín-Vásquez et al. 2010, Tabea-Treitler et al. 2013 & Velandia-Perilla et al. 2013).
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Gutiérrez LF, Rosada LM, Jiménez Á. Chemical composition of Sacha Inchi ( Plukenetia volubilis L.) seeds and characteristics of their lipid fraction. Grasas y Aceites 2011. [DOI: 10.3989/gya044510] [Citation(s) in RCA: 86] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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