Now showing items 1-20 of 187

    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 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 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. 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) ...

    Alternative splicing dynamics during somatic cell reprogramming 

    Vivori, Claudia (Date of defense: 2019-02-14)

    Alternative splicing (AS) is a mechanism of post-transcriptional regulation that plays an important role during development and in the maintenance of stem cell pluripotency. The dynamics of AS regulation during somatic ...

    Análisis del repertorio de receptores de células NK en la infección por citomegalovirus humano 

    Gumà Uriel, Mònica (Date of defense: 2005-12-19)

    Los objetivos de este trabajo han sido estudiar la expresión de receptores de células NK (NKR), en particular CD94/NKG2C, en relación con la infección por citomegalovirus humano (HCMV). Los resultados descritos constituyen ...

    Artificial multicellularity and pattern formation 

    Duran Nebreda, Salvador (Date of defense: 2016-01-19)

    En aquesta tesi hem intentat atacar preguntes relacionades amb els orígens de la vida multicel•lular i dels comportaments cooperatius a la nostra biosfera. Particularment hem fet ús de mètodes “no naturals”: la vida ...

    Aurora A kinase function during anaphase 

    Lioutas, Antonio (Date of defense: 2012-11-09)

    Aurora A (AurA) is an important mitotic kinase mainly studied for its involvement in cell cycle progression, centrosome maturation, mitotic spindle pole organization and bipolar spindle formation. It localizes to ...

    B cell ontogeny and stromal regulation of homeostatic antibody responses to commensal antigens in humans 

    Bascones Gleave, Sabrina (Date of defense: 2016-12-20)

    The spleen contains a unique subset of innate-like marginal zone (MZ) B cells that rapidly mount protective antibody responses to invasive encapsulated bacteria. Here we show that human splenic MZ B cells also mount ...

    Biophysical mechanisms of phagocytic epithelial tissue clearance in the early vertebrate embryo 

    Häkkinen, Hanna-Maria (Date of defense: 2022-07-01)

    Cellular errors can spontaneously occur during vertebrate embryo development and can lead to apoptosis. Recent work in our lab revealed a novel function of the embryonic epithelium as an efficient phagocytic scavenger of ...

    C/EBPα instructs trophectoderm and pluripotency through the II6 pathway 

    Plana Carmona, Marcos (Date of defense: 2021-03-17)

    Continuous C/EBPa expression converts B cells into macrophages while its transient upregulation before the Yamanaka factors yields highly efficient iPSC reprogramming. C/EBP members regulate Il6 pathway genes and IL-6 ...

    C/EBPα poises B cells for rapid reprogramming into induced pluripotent stem cells 

    Di Stefano, Bruno (Date of defense: 2014-06-05)

    One of the major goals of current stem cell research is understanding the mechanism of somatic cell reprogramming by Oct4, Sox2, Klf4 and Myc (OSKM) into induced pluripotent stem cells (iPSCs). However, the finding ...

    Caracterització dels receptors de l'activador tissular del plasminogen (tPA) en càncer de pàncrees 

    Roda Noguera, Oriol (Date of defense: 2006-05-30)

    El càncer de pàncrees és altament agressiu i representa la cinquena causa de mort al mon occidental. Anteriorment, en el nostre laboratori, vam identificar que el receptor tissular del plasminogen (tPA) hi està sobre-expressat ...

    Characterization of cytomegalovirus-induced adaptive NK cells and the role of CD94/NKG2C receptor 

    Pupuleku, Aldi (Date of defense: 2017-11-10)

    Human cytomegalovirus (HCMV) infection induces a persistent reconfiguration of the NK cell compartment in some individuals, promoting the development of a mature NK cell subset, hallmarked by high expression levels of ...

    Characterization of endothelial to mesenchymal transition induced by Notch 

    Frías Hernández, Àlex (Date of defense: 2015-12-10)

    Notch activation in aortic endothelial cells (ECs) takes place at embryonic stages during cardiac valve formation and induces an endothelial-to-mesenchymal transition (EndMT). Using aortic ECs, we show here that active ...

    Characterization of natural Killer cell response to human cytomegalovirus infected dentrilic cells 

    Magri, Giuliana (Date of defense: 2011-03-31)

    S'ha establert un sistema experimental autòleg per a poder estudiar la resposta de les cèl.lules Natural Killer (NK) contra les cèl.lules dendrítiques derivades de monòcits (moDC), infectades pel Cytomegalovirus humà (HCMV). ...

    Characterization of snail1 and pten transcriptional regulation by snail1: New insights into epithelial-to-mesenchymal transition and cell resistance to apoptosis 

    Escrivà Izquierdo, María (Date of defense: 2008-06-20)

    The product of the snail1 gene (SNAIL1) is a transcriptional repressor required for triggering the epithelial-to-mesenchymal transition (EMT). SNAIL1 transcription is induced when epithelial cells are forced to acquire a ...

    Characterization of synthetic lethality between MYC activation and splicing inhibition in an immortalized cell line : roles of alternative splicing 

    Herrero Vicente, Jorge (Date of defense: 2024-02-26)

    Cancer cells exhibit a synthetic lethal (SL) phenotype when Myc upregulation is combined with antitumor drugs targeting the splicing factor SF3B1. However, the molecular events and mechanisms responsible for this vulnerability ...

    Chromatin fibers are formed by heterogeneous groups of nucleosomes in vivo 

    Ricci, Maria Aurelia (Date of defense: 2015-06-05)

    La arquitectura del genoma y la estructura de la cromatina, junto con los factores de transcripción son actores clave para la autorenovación, la pluripotencia y la diferenciación de las células madre embrionarias (ESCs). ...

    Chromatin reorganization during epithelial-to-mesenchymal transition : a role for euchromatin lamin B1 domains 

    Pascual-Reguant, Laura (Date of defense: 2018-11-23)

    Les làmines nuclears (A/C i B) són els majors constituents de la làmina nuclear (NL). Els estructuralment conservats dominis associats a les làmines (LADs) estan formats per regions genòmiques que contacten amb la NL. Tot ...