Now showing items 1-20 of 1293

    1)Jarid2 regulates mouse epidermal stem cell activation and differentiation ; 2)Tumor heterogeneity and metastasis-initiation in human squamous cell carcinoma 

    Mejetta, Stefania (Date of defense: 2013-09-12)

    Jarid2 is required for the genomic recruitment of the polycomb repressive complex-2 (PRC2) in embryonic stem cells. However, its specific role during late development and adult tissues remains largely uncharacterized. ...

    A 3D culture system to study gene regulation in breast cancer cells 

    Ramírez Cuéllar, Angélica Julieta (Date of defense: 2022-05-12)

    In this Thesis we report the successful growth of hormone responsive T47D cells as 3D spheroids in Matrigel mimicking the ECM. A detailed characterization by using a genome-wide approach of the main physical and biochemical ...

    A Bioinformatics approach to the study of comorbidity : Insight into mental disorders 

    Gutiérrez-Sacristán, Alba (Date of defense: 2017-12-15)

    Estudios clínicos y epidemiológicos muestran que la comorbilidad, la coexistencia de varias enfermedades en un mismo paciente, tiene un gran impacto en la evolución de su estado de salud. Por lo tanto, el análisis de ...

    A Comprehensive multiomics approach towards understanding obsessive-compulsive disorder 

    Domènech Salgado, Laura (Date of defense: 2018-12-20)

    To date, very little progress has been made towards elucidating the genetic causes of obsessive-compulsive disorder (OCD). In this project we have performed rare variant association study (RVAS) transcriptomics and ...

    A Comprehensive screening of X-linked and miRNA-driven signatures of positive selection and the role of cis-regulatory elements in the human genome 

    Villegas Mirón, Pablo (Date of defense: 2021-07-19)

    The evolutionary history of the human genome has been shaped by the selection of multiple elements in response to different environmental pressures. The analysis of regulatory adaptations and the particularities of sexual ...

    A Computational toolkit to boost precision oncology with pharmacogenomics 

    Mateo Ramos, Lídia (Date of defense: 2019-12-18)

    Durant la darrera dècada la seqüenciació massiva de pacients de cancer ha permés avançar de forma significativa el coneixement sobre les bases moleculars del càncer. Un cop assolit aquest primer pass, el repte que tenim ...

    A dynamic Turing model of digit patterning : a Turing mechanism modulated by positional information underlies digit specification 

    Marcon, Luciano (Date of defense: 2013-11-05)

    The specification of the vertebrate limb skeleton is a classical model to study pattern formation during development. Two different theories have been proposed to explain this process: the Turing mechanism and the ...

    A functional study of the conserved LSM proteins in C. elegans reveals their involvement in the stress response of metazoans 

    Cornes Maragliano, Eric (Date of defense: 2015-07-24)

    Lsm proteins regulate RNA metabolism and are conserved in the three domains of life, typically functioning as RNA-binding complexes involved in a wide range of post-transcriptional mechanisms. Generally, their functions ...

    A Genome-wide CRISPR screen to identify novel pathways involved in reprogramming and x-chromosome reactivation 

    Barrero Asencio, Mercedes (Date of defense: 2023-03-02)

    During reprogramming of somatic cells into induced pluripotent stem cells (iPSCs), the epigenome needs to be reset. A prime example of this is the reversal of the silent state of the inactive X chromosome in female cells, ...

    A midzone-based ruler adjusts chromosome compaction to analphase spindle length 

    Neurohr, Gabriel Erich (Date of defense: 2012-04-13)

    Partitioning of chromatids during mitosis requires that chromosome compaction and spindle length scale appropriately with each other. However, it is not clear whether chromosome condensation and spindle elongation ...

    A molecular approach to taxol biosynthesis 

    Onrubia Ibáñez, Miriam (Date of defense: 2012-04-03)

    Secondary metabolism in plants produces numerous compounds with wide-ranging activities, including the antineoplastic compound taxol and related taxanes. The biotechnological production of taxol has so far been based on ...

    A multidimensional approach to precarious employment: measurement, association with poor mental health and prevalence in the Spanish workforce 

    Vives Vergara, Alejandra (Date of defense: 2010-11-22)

    Objective: To study the psychometric properties and construct validity of a multidimensional instrument to measure employment precariousness; to assess the association between employment precariousness and poor mental ...

    A Multivariate approach to study the genetic determinants of phenotypic traits 

    Garrido Martín, Diego (Date of defense: 2020-01-30)

    We have developed an efficient and reproducible pipeline for the identification of genetic variants affecting splicing (splicing quantitative trait loci or sQTLs), based on an approach that captures the intrinsically ...

    A new Ligand-Based approach to virtual screening, and prolifing or large chemical libraries 

    Gregori Puigjané, Elisabet (Date of defense: 2008-07-08)

    La representació de les molècules per mitjà de descriptors moleculars és la base de moltes de les eines computacionals pel disseny de fàrmacs. Aquests mètodes computacionals es basen en l'abstracció de l'estructura química ...

    A system-level, molecular evolutionary analysis of mammalian phototransduction 

    Invergo, Brandon M. (Date of defense: 2013-11-22)

    Phototransduction is the biochemical process by which a light stimulus is converted to a neuronal signal. The process functions through complex interactions between many proteins, which work in concert to tightly control ...

    A Systems-level study of giant regulation in Drosophila melanogaster 

    Hoermann, Astrid (Date of defense: 2014-11-14)

    Esta tesis revela la regulación transcripcional del gen gap giant (gt) en el embrión blastodermal de Drosophila por ingeniería inversa: un modelo matemático infiere los mecanismos subyacentes de datos cuantitativos de ...

    A unified approach to the emergence of complex communication 

    Corominas Murtra, Bernat (Date of defense: 2011-07-12)

    Aquesta tesi estudia l'emergència de complexitat en sistemes de comunicació naturals, prenent el llenguatge humà com a principal objecte d'estudi. Ens centrem en i) Patrons estadístics de complexitat, ii) Mecanismes ...

    A. C. elegans model for X-linked adrenoleukodystrophy : roles of pmp-4 fatty acid transporter in the nervous system 

    Guha, Sanjib Kumar (Date of defense: 2015-12-18)

    X-linked adrenoleukodystrophy (X-ALD) is an inherited neurodegenerative disorder. The genetic bases for all its different phenotypic variants are mutation in the gene encoding the peroxisomal ATP-binding cassette (ABC) ...

    Acceso a la atención en los sistemas de salud de Colombia y Brasil . Un análisis de las barreras, los factores determinantes y la equidad en el acceso 

    García Subirats, Irene (Date of defense: 2015-07-14)

    El acceso a la atención en salud es una de las principales preocupaciones de las políticas sanitarias, y su evaluación es fundamental para su diseño. El objetivo de esta tesis es analizar el acceso a los diferentes niveles ...

    Acquired resistance to the anti-EFGR monoclonal antibody cetuximab in colorectal cancer 

    Dalmases Massegú, Alba (Date of defense: 2012-06-22)

    EGFR is a transmembrane tyrosine kinase receptor from the HER family which, upon ligand stimulation, activates different signaling pathways involved in tumorogenesis. EGFR can be targeted by monoclonal antibodies, as ...