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Dissertations / Theses on the topic 'Preclinical tumor models'

Author: Grafiati

Published: 8 June 2024

Last updated: 31 July 2025

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1

MINOLI, LUCIA. "TUMOR MICROENVIRONMENT IN EXPERIMENTAL PRECLINICAL MOUSE MODELS OF HUMAN CANCER: MORPHOLOGICAL APPROACH." Doctoral thesis, Università degli Studi di Milano, 2020. http://hdl.handle.net/2434/704551.

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One of the recent advancements in oncological research has been the recognition of the tumor microenvironment (TME) as a relevant participant during all stages of the evolution of a neoplastic process. Indeed, over the past decades, tumors have been considered through a changing perspective: no longer as a growth of homogeneous neoplastic cells, but as an actual organ composed of different cell populations and structures: the parenchyma being the neoplastic population and the stroma, including the vascular network and infiltrating cells. The tumor microenvironment has a dual role in tumor biol

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2

Chen, Liu Qi. "Development and Application of AcidoCEST MRI for Evaluating Tumor Acidosis in Pre-Clinical Cancer Models." Diss., The University of Arizona, 2014. http://hdl.handle.net/10150/323450.

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Tumor acidosis is an important biomarker in cancer. We have developed a noninvasive imaging method, termed acidosis Chemical Exchange Saturation Transfer (acidoCEST) MRI to measure extracellular pH (pHe) in the tumor microenvironment. Chapter 1 introduces the importance of measuring tumor acidosis and presents various imaging modalities and their shortcoming to measure pHe. Chapter 2 describes the optimization of acidoCEST MRI for in vivo pHe measurement. The acidoCEST MRI protocol consists of a CEST-FISP acquisition and Lorentzian line shape fittings. We determined the optimal saturation time

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Denton, Nicholas Lee Denton. "Modulation of tumor associated macrophages enhances oncolytic herpes virotherapy in preclinical models of Ewing sarcoma." The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1523892800897524.

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4

TOSCA, ELENA MARIA. "Dynamic energy budget based models of tumor-in-host growth inhibition and cachexia onset in preclinical settings." Doctoral thesis, Università degli studi di Pavia, 2019. http://hdl.handle.net/11571/1242427.

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Il processo di sviluppo di un nuovo farmaco oncologico e' caratterizzato da un elevatissimo numero di fallimenti, principalmente dovuti alla scarsa efficacia o eccessiva tossicita' riscontrata durante le fasi di sperimentazione clinica. Tra le possibili cause di questo fenomeno vi sono l'utilizzo di modelli animali poco rappresentativi della condizione umana e la mancanza di un paradigma di traslazione dal contesto preclinico a quello clinico sufficientemente predittivo. L'utilizzo di modelli farmacometrici, capaci di estrapolare, sintetizzare e integrare le informazioni raccolte durante la sp

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Lahr, Christoph Alexander. "Tissue-engineering humanised bone sarcoma models in rodents-a preclinical study platform for orthopaedic research." Thesis, Queensland University of Technology, 2021. https://eprints.qut.edu.au/207759/1/Christoph%20Alexander_Lahr_Thesis.pdf.

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This thesis is a step forward in preclinical in-vivo disease modelling, designed to find new diagnostic and therapeutic options, to ultimately improve the poor outcome of patients with primary bone cancer. Combining the principles of tissue-engineering, 3D-printing and advanced gene editing techniques the preclinical animal models developed in this thesis have important clinical implications that could shape future innovative treatment plans. Particularly the translation of a humanised osteosarcoma model from a mouse into a newly engineered severely immunocompromised rat will facilitate precli

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6

Laranga, Roberta <1985&gt. "Development of Preclinical Models of Mammary Carcinogenesis: Functional Role of Her2 and its Isoforms in Tumor Progression and in Drug Resistance." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2017. http://amsdottorato.unibo.it/7832/1/Laranga_Roberta_Tesi.pdf.

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Overexpression of huHER2 occurs in nearly 15–20% of breast cancers, and it is generally associated with poor patient survival. Existing therapies such as trastuzumab and lapatinib are currently used in the treatment of HER2-positive cancers, although issues with high recurrence and acquired resistance still remain. Elucidation of the molecular mechanisms underlying resistance is leading to the identification of therapies and strategies to manage resistance to HER2-targeted therapies. In addition to intrinsic and acquired resistance associated to HER2 oncogene, the induction of bypass pathways

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7

Fuchs, Jeannette [Verfasser], and Thorsten [Akademischer Betreuer] Stiewe. "Establishment and characterization of preclinical mouse models for evaluation of oncogenic and tumor-suppressive properties of p53 family members / Jeannette Fuchs ; Betreuer: Thorsten Stiewe." Marburg : Philipps-Universität Marburg, 2017. http://d-nb.info/1131253272/34.

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8

Ferreira, Luís Pedro Correia Pinto. "Development of multicelular 3D cancer testing platforms for evaluation of new anti-cancer therapies." Master's thesis, Universidade de Aveiro, 2017. http://hdl.handle.net/10773/22713.

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Mestrado em Bioquímica Clínica<br>O cancro do pulmão (CP) é um dos cancros mais diagnosticados a nível mundial e também um dos mais mortíferos. Atualmente, as terapias administradas a nível clínico para o tratamento do CP são ainda extremamente ineficazes e limitadas no que diz respeito ao aumento da taxa de sobrevivência dos pacientes oncológicos. Esta realidade demonstra a necessidade de investigar ativamente novas terapias para o tratamento desta neoplasia. No entanto a validação pré-clínica de terapias inovadoras para o CP tem-se revelado extremamente difícil devido à inexistência de plat

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9

Wolska-Krawczyk, Malgorzata [Verfasser], and Arno [Akademischer Betreuer] Bücker. "Evaluation of liver tumor perfusion by intraarterial transcatheder magnetic resonance angiography during transarterial chemoembolization in patients with hepatocellular carcinoma : Preclinical instrument validation in vascular models and clinical study / Malgorzata Wolska-Krawczyk. Betreuer: Arno Bücker." Saarbrücken : Saarländische Universitäts- und Landesbibliothek, 2014. http://d-nb.info/1056906979/34.

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10

Dobosz, Michael [Verfasser], Vasilis [Akademischer Betreuer] Ntziachristos, and Hans-Jürgen [Akademischer Betreuer] Wester. "The application of in vivo and ex vivo multispectral epi-fluorescence imaging for the preclinical discovery and development of monoclonal antibodies in tumor xenograft models / Michael Dobosz. Betreuer: Vasilis Ntziachristos. Gutachter: Hans-Jürgen Wester ; Vasilis Ntziachristos." München : Universitätsbibliothek der TU München, 2014. http://d-nb.info/1080903682/34.

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11

Dobosz, Michael Verfasser], Vasilis [Akademischer Betreuer] Ntziachristos, and Hans-Jürgen [Akademischer Betreuer] [Wester. "The application of in vivo and ex vivo multispectral epi-fluorescence imaging for the preclinical discovery and development of monoclonal antibodies in tumor xenograft models / Michael Dobosz. Betreuer: Vasilis Ntziachristos. Gutachter: Hans-Jürgen Wester ; Vasilis Ntziachristos." München : Universitätsbibliothek der TU München, 2014. http://d-nb.info/1080903682/34.

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12

Delgado, San Martin Juan A. "Mathematical models for preclinical heterogeneous cancers." Thesis, University of Aberdeen, 2016. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=230139.

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Cancer is a deadly, complex disease with 14 million new cases diagnosed every year and the endeavour to develop a cure is a global multidisciplinary effort. The complexity of cancer and the resulting vast volume of data derived from its research necessitates a robust and cutting-edge system of mathematical and statistical modelling. This thesis proposes novel mathematical models of quantification and modelling applied to heterogeneous preclinical cancers, focusing on the translation of animal studies into patients with particular emphasis on tumour stroma. The first section of this thesis (qua

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13

PEDERZOLI, FILIPPO. "Microbiome and bladder cancer." Doctoral thesis, Università Vita-Salute San Raffaele, 2021. http://hdl.handle.net/20.500.11768/121778.

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The microbiome has gained increasing momentum in cancer research, as it has become clear that microorganisms residing within our body are involved in mediating the cellular and tissue metabolism in health and disease. In bladder cancer research, there are different microbial communities that may mediate cancer pathobiology and response to therapy: the gut microbiome, the urinary microbiome, the urothelium-bound microbiome. These bacterial communities may mediate the processes of carcinogenesis or recurrence, modify the response to local intravesical therapies or influence the activity of syste

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14

George, Courtney M. "Medulloblastoma: New animal models, preclinical drug testing, and characterising immune infiltrates." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2022. https://ro.ecu.edu.au/theses/2575.

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Medulloblastoma is the most common malignant brain tumour in children. The current treatment for medulloblastoma consists of surgery, radiation, and chemotherapy. Although these therapies have their merits, the outcome for some patients, particularly those with MYC amplified tumours, is poor, and the damaging nature of these therapies results in morbidities that significantly impact on a patient’s quality of life. To improve outcome and reduce adverse side effects, several strategies have been employed, including expanding the repertoire of accurate disease models, the development of novel the

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15

Pan, Jie. "Molecularly targeted therapy on a new preclinical mouse model for gastric neuroendocrine tumors." Diss., Ludwig-Maximilians-Universität München, 2013. http://nbn-resolving.de/urn:nbn:de:bvb:19-159343.

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Neuroendocrine tumors are a heterogeneous group of malignancies with an increasing prevalence. Since there is not much progress in therapy, model systems are urgently needed. We have a CEA424-SV40 TAg transgenic mouse model which develops spontaneous tumors in the antral region of the stomach. In addition, several cell lines derived from the tumor were established. Gene expression analysis of the tumor tissue as well as cell lines revealed neuroendocrine markers. Therefore we further characterized this model with special emphasis on the cells of origin and used it for testing new targeted trea

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16

Baka, Zakaria. "Élaboration de cancers sur puce pour des applications en thérapies anticancéreuses." Electronic Thesis or Diss., Université de Lorraine, 2023. http://www.theses.fr/2023LORR0175.

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Le cancer de l’ovaire constitue un véritable enjeu de santé public. Les nouveaux traitements se heurtent par ailleurs à des taux d’échec très élevés. Ceci s’explique notamment pour le manque de fiabilité des modèles précliniques classiques tels que la culture cellulaire en 2D. De nouveaux outils basés sur la culture cellulaire en 3D ont alors fait leur apparition tels que les sphéroïdes et les organoïdes. Or ces modèles ont leurs propres limites (coûts, difficultés d’application). La bio-impression 3D est une nouvelle approche permettant de créer des modèles tumoraux de manière contrôlée et re

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17

Piggott, Luke. "Investigating the therapeutic potential of cellular FLICE-like inhibitory protein and TRAIL in preclinical models of breast cancer." Thesis, Cardiff University, 2012. http://orca.cf.ac.uk/44561/.

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Apoptosis is an important process in normal mammary gland physiology and evasion of apoptosis has also been identified as a hallmark of cancer. In breast cancer cells apoptotic resistance is an acquired feature that can promote tumour growth and progression. Induction of apoptosis by the extrinsic death ligand TRAIL has been shown to be a promising clinical therapy targeting a number of different cancer cells whilst sparing normal cells. Unfortunately most breast cancers are inherently resistant to TRAIL treatment. Herein it is shown that by reducing the expression of the downstream TRAIL inhi

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18

Pan, Jie [Verfasser], and Georg [Akademischer Betreuer] Enders. "Molecularly targeted therapy on a new preclinical mouse model for gastric neuroendocrine tumors / Jie Pan. Betreuer: Georg Enders." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2013. http://d-nb.info/1038152062/34.

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19

FROECHLICH, GUENDALINA. "DISSECTING THE STING-DEPENDENT MOLECULAR MECHANISMS IN A PRECLINICAL MODEL OF COMBINED TREATMENT WITH TUMOUR-TARGETED HERPES SIMPLEX VIRUS AND IMMUNE CHECKPOINT BLOCKADE." Doctoral thesis, Università degli Studi di Milano, 2021. http://hdl.handle.net/2434/883382.

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Oncolytic viruses promote anti-tumour immune response by direct tumour cell killing and activation of intratumoural immune system. The role of innate antiviral immune response to oncolytic viruses is still debated, as they counteract viral replication and trigger adaptive antitumor immunity. The DNA sensing-mediated cGAS/STING axis may act as a key balancer between lytic and immunotherapeutic activity of oncolytic viruses. Indeed, upon infection, viral DNA is sensed by cGAS/STING axis that, in turn, induces type-I interferon cascade counteracting viral replication and spread. For this re

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20

Alshammari, Fatemah O. F. O. "An immunohistopathological and functional investigation of β3 integrin antagonism as a therapeutic strategy in cancer : characterisation, development, and utilisation of preclinical cancer models to investigate novel β3 integrin anatgonists". Thesis, University of Bradford, 2013. http://hdl.handle.net/10454/6327.

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Tumour cell dissemination is a major issue with the treatment of cancer, thus new therapeutic strategies which can control this process are needed. Antagonism of integrins highly expressed in tumours is one potential strategy. The integrins are transmembrane glycoprotein adhesive receptors. Two of the integrins, αVβ3 and αIIbβ3, are highly expressed in a number of tumours and induce bi-directional signalling through their interaction with extracellular matrix proteins, and growth factor receptors. Through this signalling they play an important role in a number of cellular processes that are in

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21

O'Farrell, Alice C. "Development of in vivo tumour models for non-invasive proof-of-principle investigation of novel therapeutic agents. Engineering and characterisation of bioluminescent cell reporter systems for in vivo analysis of anti-cancer therapy pharmacodynamics." Thesis, University of Bradford, 2011. http://hdl.handle.net/10454/5391.

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Despite significant advances in cancer treatment, clinical response remains suboptimal and there is a continued requirement for improved chemotherapeutics. The attrition rate for new therapies is high, due principally to lack of in vivo efficacy and poor pharmacodynamics. Consequently better systems are required to determine in vivo preclinical efficiency and drug-target interactions. Engineering of cancer cells to express fluorescent or bioluminescent proteins, either endogenously or under the control of specific gene promoters, and their detection by noninvasive optical imaging has the poten

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22

Dwiri, Fatima azzahra. "Impacts de l'irradiation ciblée sur le tissu cérébral et les déficits cognitifs : études multiparamétriques et longitudinales chez le rat." Electronic Thesis or Diss., Normandie, 2023. http://www.theses.fr/2023NORMC411.

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Bien que la radiothérapie, traitement incontournable en neuro-oncologie, améliore la survie des patients, elle affecte de manière considérable le tissu cérébral sain avoisinant la tumeur conduisant à des déficits cognitifs qui sont retrouvés chez 50 à 90 % des patients. Les avancées technologiques réalisées lors de la dernière décennie ont permis de concevoir de nouvelles techniques d’irradiation avec des propriétés balistiques prometteuses. Cependant, leurs intérêts pour prévenir la radiotoxicité cérébrale reste à démontrer, en s’appuyant notamment sur des recherches précliniques pour lesquel

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23

O'Farrell, Alice Claire. "Development of in vivo tumour models for non-invasive proof-of-principle investigation of novel therapeutic agents : engineering and characterisation of bioluminescent cell reporter systems for in vivo analysis of anti-cancer therapy pharmacodynamics." Thesis, University of Bradford, 2011. http://hdl.handle.net/10454/5391.

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Despite significant advances in cancer treatment, clinical response remains suboptimal and there is a continued requirement for improved chemotherapeutics. The attrition rate for new therapies is high, due principally to lack of in vivo efficacy and poor pharmacodynamics. Consequently better systems are required to determine in vivo preclinical efficiency and drug-target interactions. Engineering of cancer cells to express fluorescent or bioluminescent proteins, either endogenously or under the control of specific gene promoters, and their detection by noninvasive optical imaging has the poten

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24

Pérez, lanzón María. "Modeling Hormone Receptor Positive Breast Cancer in Immunocompetent Mice Blocking tumor-educated MSC paracrine activity halts osteosarcoma progression Organoids for Modeling Genetic Diseases. In: International Review of Cell and Molecular Biology A preclinical mouse model of osteosarcoma to define the extracellular vesicle-mediated communication between tumor and mesenchymal stem cells Failure of immunosurveillance accelerates aging The metabolomic signature of extreme longevity: Naked mole rats versus mice Lurbinectedin synergizes with immune checkpoint blockade to generate anticancer immunity Laminin-binding integrins are essential for the maintenance of functional mammary secretory epithelium in lactation Immunoprophylactic and immunotherapeutic control of hormone receptor-positive breast cancer." Thesis, université Paris-Saclay, 2021. http://www.theses.fr/2021UPASL019.

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Les progrès de la recherche sur le cancer du sein dépendent de la disponibilité d’outils appropriés, comme les lignées cellulaires qui peuvent être implantées chez des souris immunocompétentes. La souche de souris C57Bl/6 est la plus étudiée et c’est la seule pour laquelle certaines variantes génétiques sont disponibles. Étant donné qu'aucune lignée cellulaire de carcinome mammaire à récepteurs hormonaux positifs de souche C57Bl/6 n'est disponible, nous avons décidé d'établir des lignées cellulaires de ce type. Nous avons induit des cancers du sein chez des souris C57BL/6 femelles en utilisant

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25

Monteiro, Maria Vinhas. "Development of biomimetic pancreatic cancer 3D in vitro models for preclinical drug screening." Master's thesis, 2020. http://hdl.handle.net/10773/30418.

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Pancreatic ductal adenocarcinoma (PDAC) is a disease with one of the highest mortality rates and with an increasing incidence worldwide. Currently, clinically administered therapies for the PDAC treatment are still extremely ineffective and of limited access. Given this scenario, it is urgent to investigate and validate new therapies for the treatment of this neoplasia. PDAC is a cancer with a unique stratified bio-architecture and characterized by an exacerbated desmoplastic reaction involving cancer-associated fibroblasts, immune cells and extracellular matrix proteins (ECM), which

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26

BAZZICHETTO, CHIARA. "Tumor-stroma interactions influence the response to PI3K targeted agents in preclinical models of colorectal cancer (CRC)." Doctoral thesis, 2019. http://hdl.handle.net/11573/1244565.

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Introduction: One of the main obstacle to the successful development of therapeutic strategies remains the identification of biomarker underlying drug resistance. Recently, investigators have become more aware the role of the tumor microenvironment (TME) in cancer and the potential therapeutic opportunities that derive from suppressing potential resistance mechanisms arising microenvironmental interactions. The aim of this study was to set-up multicellular culture models to uncover the molecular mechanisms by which stromal/endothelial cells modulate response to signaling inhibitors and to iden

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27

Simões, Rui Vasco Portas Ferreira. "Towards molecular imaging of preclinical brain tumor models by MRS : monitoring and analysis of mouse brain glioma MR spectral pattern changes during acute hyperglycemic challenges in vivo." Doctoral thesis, 2010. http://hdl.handle.net/10316/13879.

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28

Hussain, Nosheen, David Connah, Hassan Ugail, et al. "The use of thermographic imaging to evaluate therapeutic response in human tumour xenograft models." 2016. http://hdl.handle.net/10454/8781.

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Yes<br>Non-invasive methods to monitor tumour growth are an important goal in cancer drug development. Thermographic imaging systems offer potential in this area, since a change in temperature is known to be induced due to changes within the tumour microenvironment. This study demonstrates that this imaging modality can be applied to a broad range of tumour xenografts and also, for the first time, the methodology’s suitability to assess anti-cancer agent efficacy. Mice bearing subcutaneously implanted H460 lung cancer xenografts were treated with a novel vascular disrupting agent, ICT-2552, a

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29

Tsoi, Mayra. "Anti-VEGFA therapy reduces tumor growth and extends survival in a murine model of ovarian granulosa cell tumor." Thèse, 2012. http://hdl.handle.net/1866/9608.

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Les tumeurs des cellules de la granulosa (GCTs) sont des tumeurs avec un potentiel malin ayant tendance à récidiver, provoquant ainsi la mort dans 80% des cas de stade avancé consécutif à une rechute. Bien que les GCTs représentent 5% des tumeurs ovariennes, peu d’études ont évalué les protocoles de traitement adjuvant pour la maladie avancée ou récurrente. Notre but était d’évaluer l’efficacité de la voie de signalisation du facteur de croissance de l’endothélium vasculaire A (VEGFA) comme cible pour le traitement de la GCT utilisant le modèle murin transgénique Ptentm1Hwu/tm1Hwu; Ctnnb1tm1Mm

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Belardinilli, Tamascia. "Innovative 3D model for the establishment of primary paediatric brain tumour cultures: new platform for the preclinical study of immunotherapeutic approaches." Doctoral thesis, 2020. http://hdl.handle.net/11573/1349215.

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Gliomas, encompassing Low Grade (LGGs) and High Grade (HGGs) diseases are, overall, the most common solid tumors of the pediatric population. Children affected by LGGs that cannot be cured often struggle to obtain a complete remission of the disease, suffering from significant long-term sequelae. HGGs are instead associated with very grim outcomes and no innovative treatment so far has been able to change this poor prognosis. New treatment approaches, such as immunotherapy, are therefore needed for these patients. Gliomas, as all solid tumors, are characterized by a high structural complexity

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