6 results on '"Monleón Guinot, Irene"'
Search Results
2. Cancer Epithelial Cells Participate in the Self-Organization of Lung Tumor Spheroids: A Morphological Approach.
- Author
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Monleón-Guinot, Irene, Bravo-Baranda, Lucía, Milián, Lara, Sancho-Tello, María, Llop-Miguel, Mauro, Galbis, José Marcelo, Cremades, Antonio, Carda, Carmen, and Mata, Manuel
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CANCER cell growth , *CELL anatomy , *CELL morphology , *CELL migration , *EXTRACELLULAR matrix , *CANCER cell culture - Abstract
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The tumor microenvironment is known to play an important role in tumor progression. However, the specific mechanisms underlying this process are still not known in detail and more research is needed on the elements that control tumor progression in lung cancer. In this work, we aimed to investigate the involvement of epithelial and stromal cancer cells in growth, cell migration, and epithelial-to-mesenchymal transition (EMT) in a 3D in vitro model consisting of cell spheroids cultured in a type I collagen scaffold.Introduction/aims: Spheroids were manufactured using different combinations of epithelial cells, particularly H460 and H1792 cell lines, with cancer-associated fibroblasts and normal fibroblasts, both isolated from adenocarcinoma patients. We evaluated the morphology of the spheroids by analysis of F-actin and pankeratin with confocal microscopy. We determined the ultrastructure of cells in the spheroids by transmission electron microscopy and the expression of CDH1, CDH2, and VIM by RT-PCR.Methods: We observed that, on the one hand, the type of epithelial cell influences the morphology of spheroids. Stromal cells stimulated spheroid growth and cell dissemination through the collagen matrix, either alone or organized in branches with a nucleus of epithelial cells preceded by fibroblast cells. They also induced the appearance of new cell groups in the scaffold and the presence of EMT markers.Results: The results presented here indicate the participation of both epithelial and stromal cells in the control of spheroid self-organization. The experimental model proposed here, although preliminary, is useful for the study of some aspects related to tumor progression in lung cancer. Lung cancer remains a significant public health problem, causing millions of deaths each year, making it crucial to understand its complexities in order to developing effective therapeutic strategies. The tumor microenvironment, which refers to the environment surrounding a tumor and includes various cell types, signaling molecules, and the extracellular matrix, influences how the tumor grows and responds to treatments. This study investigates how different cells interact in lung cancer, using a 3D model that mimics cancer microenvironment. Spheroids of two types of lung cancer cells, H460 and H1792, with or without stromal cells were cultured in a collagen matrix, to study their behavior. The results showed that when cancer cell spheroids were cultured with stromal cells, the spheroids formed branches and the tumors grew larger. Gene expression analysis revealed that the cells were undergoing a process called EMT, associated with more aggressive tumor behavior. Detailed studies of cellular structure confirmed that stromal cells were causing significant changes in cancer cells. This model helps understand the progression of lung cancer and can be used to quickly test new drugs. [ABSTRACT FROM AUTHOR]Conclusion: - Published
- 2024
- Full Text
- View/download PDF
3. In Vitro Effect of Δ9-Tetrahydrocannabinol and Cannabidiol on Cancer-Associated Fibroblasts Isolated from Lung Cancer
- Author
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Milián, Lara, primary, Monleón-Guinot, Irene, additional, Sancho-Tello, María, additional, Galbis, José Marcelo, additional, Cremades, Antonio, additional, Almenar-Ordaz, María, additional, Peñaroja-Martinez, Josep, additional, Farras, Rosa, additional, Martín de Llano, José Javier, additional, Carda, Carmen, additional, and Mata, Manuel, additional
- Published
- 2022
- Full Text
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4. Morphological Characterization of Human Lung Cancer Organoids Cultured in Type I Collagen Hydrogels: A Histological Approach.
- Author
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Monleón-Guinot, Irene, Milian, Lara, Martínez-Vallejo, Patricia, Sancho-Tello, María, Llop-Miguel, Mauro, Galbis, José Marcelo, Cremades, Antonio, Carda, Carmen, and Mata, Manuel
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LUNG cancer , *EPITHELIAL-mesenchymal transition , *ORGANOIDS , *KERATIN , *TRANSMISSION electron microscopy , *COLLAGEN - Abstract
The malignity of lung cancer is conditioned by the tumor microenvironment (TME), in which cancer-associated fibroblasts (CAFs) are relevant. In this work, we generated organoids by combining A549 cells with CAFs and normal fibroblasts (NF) isolated from adenocarcinoma tumors. We optimized the conditions for their manufacture in a short time. We evaluated the morphology of organoids using confocal microscopy analysis of F-actin, vimentin and pankeratin. We determined the ultrastructure of the cells in the organoids via transmission electron microscopy and the expression of CDH1, CDH2 and VIM via RT-PCR. The addition of stromal cells induces the self-organization of the organoids, which acquired a bowl morphology, as well as their growth and the generation of cell processes. They also influenced the expression of genes related to epithelial mesenchymal transition (EMT). CAFs potentiated these changes. All cells acquired a characteristic secretory phenotype, with cohesive cells appearing inside the organoids. In the periphery, many cells acquired a migratory phenotype, especially in organoids that incorporated CAFs. The deposit of abundant extracellular matrix could also be observed. The results presented here reinforce the role of CAFs in the progression of lung tumors and could lay the foundation for a useful in vitro pharmacological model. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
5. Cultivo de condrocitos y células epiteliales sobre soportes de ácido poliláctico para regeneración de vías aéreas
- Author
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Monleón Guinot, Irene
- Subjects
Cartilage ,Cartílago ,Mucosa respiratoria ,Respiratory mucosa ,MAQUINAS Y MOTORES TERMICOS ,Grado en Biotecnología-Grau en Biotecnologia ,Airway tissue engineering ,Ingeniería tisular de vías aéreas - Abstract
[ES] Objetivos: Las vías aéreas cumplen un papel muy importante en el organismo ya que son las responsables tanto de llevar el aire a los pulmones como de acondicionarlo. El cartílago tiene una función esencial de soporte mientras que la mucosa respiratoria es la encargada del aclaramiento mucociliar. Enfermedades como la estenosis afectan a estas estructuras impidiendo la correcta realización de sus funciones y resultando en graves consecuencias para quienes las sufren, además de que los tratamientos actuales no son efectivos. Las técnicas de ingeniería tisular son prometedoras para la reconstrucción de este tipo de defectos, por ello en este trabajo se plantea el uso del ácido poliláctico como soporte en estrategias de regeneración del cartílago y la mucosa de las vías aéreas. Metodología: En primer lugar, se caracterizó la estructura, citotoxicidad y propiedades mecánicas de los soportes de ácido poliláctico. Posteriormente, se sembraron condrocitos primarios sobre scaffolds de ácido poliláctico impresos en 3D con y sin hidrogeles, y se evaluó mediante marcaje fluorescente la morfología y la expresión de colágeno de tipo I, de tipo II y agrecano. También se sembraron células epiteliales primarias y las líneas celulares A549 y H460 sobre membranas electrohiladas de ácido poli-L-láctico con y sin colágeno, y se analizó mediante fluorescencia la proliferación y morfología, así como la expresión de genes relacionados con la mucosa respiratoria (CDH1, CK20 y MUC5AC) mediante Real Time PCR. Resultados: Los soportes de ácido poliláctico resultaron ser no citotóxicos además de que mostraron propiedades mecánicas similares a los de la tráquea, con un Módulo de Young de entre 2,6 ± 0,1 y 3,6 ± 0,2 MPa según el espesor. Por otra parte, los condrocitos sembrados en los scaffolds de PLA expresaron proteínas propias del cartílago hialino como colágeno II y agrecano principalmente cuando se combinó el scaffold con el hidrogel de alginato y agarosa. Además, las células epiteliales mostraron una proliferación adecuada tapizando las membranas con y sin colágeno, y en el caso de las A549 y las células epiteliales primarias, mostraron expresión de CDH1, lo que significa que sí que tienen características de epitelio. Conclusiones: Los resultados obtenidos permiten concluir que el uso de ácido poliláctico como soporte para condrocitos y células epiteliales presenta una potencial capacidad para la regeneración de vías aéreas., [EN] Objectives: The airways play a very important role in the organism since they are responsible for both carrying the air to the lungs and conditioning it. Cartilage has an essential support function while the respiratory mucosa is responsible for mucociliary clearance. Diseases such as stenosis affect these structures, preventing the proper performance of their functions and resulting in serious consequences for those who suffer them, in addition to the fact that current treatments are not effective. Tissue engineering techniques are promising for the reconstruction of this type of defects, so in this project the use of polylactic acid as a support in regeneration strategies of the cartilage and the mucosa of the airways is considered. Methodology: Firstly, the structure, cytotoxicity and mechanical properties of the polylactic acid supports were characterized. Subsequently, primary chondrocytes were seeded on 3D printed polylactic acid scaffolds with and without hydrogels, and the morphology and expression of type I, type II and aggrecan collagen was evaluated by fluorescent labeling. Primary epithelial cells and the A549 and H460 cell lines were also seeded onto electrohilated membranes of poly-L-lactic acid with and without collagen, and proliferation and morphology were analyzed by fluorescence, as well as the expression of genes related to the respiratory mucosa ( CDH1, CK20 and MUC5AC) by Real Time PCR. Results: The polylactic acid scaffolds were found to be non-cytotoxic, in addition to showing mechanical properties similar to those of the trachea, with a Young's modulus between 2.6 ± 0.1 and 3.6 ± 0.2 MPa depending on the thickness. On the other hand, the chondrocytes grown in the PLA scaffolds expressed hyaline cartilage proteins such as collagen II and aggrecan mainly when the scaffold was combined with the alginate and agarose hydrogel. In addition, the epithelial cells showed an adequate proliferation on membranes with and without collagen, and in the case of the A549 and the primary epithelial cells, they showed expression of CDH1, which means that they do have epithelial characteristics. Conclusions: The results obtained allow us to conclude that the use of polylactic acid as a scaffold for chondrocytes and epithelial cells presents a potential capacity for the regeneration of airways.
- Published
- 2019
6. Cultivo de condrocitos y células epiteliales sobre soportes de ácido poliláctico para regeneración de vías aéreas
- Author
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Milian Medina, Lara, Mata Roig, Manuel, Gómez Ribelles, José Luís, Universitat Politècnica de València. Departamento de Termodinámica Aplicada - Departament de Termodinàmica Aplicada, Universitat Politècnica de València. Escuela Técnica Superior de Ingeniería Agronómica y del Medio Natural - Escola Tècnica Superior d'Enginyeria Agronòmica i del Medi Natural, Monleón Guinot, Irene, Milian Medina, Lara, Mata Roig, Manuel, Gómez Ribelles, José Luís, Universitat Politècnica de València. Departamento de Termodinámica Aplicada - Departament de Termodinàmica Aplicada, Universitat Politècnica de València. Escuela Técnica Superior de Ingeniería Agronómica y del Medio Natural - Escola Tècnica Superior d'Enginyeria Agronòmica i del Medi Natural, and Monleón Guinot, Irene
- Abstract
[ES] Objetivos: Las vías aéreas cumplen un papel muy importante en el organismo ya que son las responsables tanto de llevar el aire a los pulmones como de acondicionarlo. El cartílago tiene una función esencial de soporte mientras que la mucosa respiratoria es la encargada del aclaramiento mucociliar. Enfermedades como la estenosis afectan a estas estructuras impidiendo la correcta realización de sus funciones y resultando en graves consecuencias para quienes las sufren, además de que los tratamientos actuales no son efectivos. Las técnicas de ingeniería tisular son prometedoras para la reconstrucción de este tipo de defectos, por ello en este trabajo se plantea el uso del ácido poliláctico como soporte en estrategias de regeneración del cartílago y la mucosa de las vías aéreas. Metodología: En primer lugar, se caracterizó la estructura, citotoxicidad y propiedades mecánicas de los soportes de ácido poliláctico. Posteriormente, se sembraron condrocitos primarios sobre scaffolds de ácido poliláctico impresos en 3D con y sin hidrogeles, y se evaluó mediante marcaje fluorescente la morfología y la expresión de colágeno de tipo I, de tipo II y agrecano. También se sembraron células epiteliales primarias y las líneas celulares A549 y H460 sobre membranas electrohiladas de ácido poli-L-láctico con y sin colágeno, y se analizó mediante fluorescencia la proliferación y morfología, así como la expresión de genes relacionados con la mucosa respiratoria (CDH1, CK20 y MUC5AC) mediante Real Time PCR. Resultados: Los soportes de ácido poliláctico resultaron ser no citotóxicos además de que mostraron propiedades mecánicas similares a los de la tráquea, con un Módulo de Young de entre 2,6 ± 0,1 y 3,6 ± 0,2 MPa según el espesor. Por otra parte, los condrocitos sembrados en los scaffolds de PLA expresaron proteínas propias del cartílago hialino como colágeno II y agrecano principalmente cuando se combinó el scaffold con el hidrogel de alginato y agarosa. Además, las células epitelial, [EN] Objectives: The airways play a very important role in the organism since they are responsible for both carrying the air to the lungs and conditioning it. Cartilage has an essential support function while the respiratory mucosa is responsible for mucociliary clearance. Diseases such as stenosis affect these structures, preventing the proper performance of their functions and resulting in serious consequences for those who suffer them, in addition to the fact that current treatments are not effective. Tissue engineering techniques are promising for the reconstruction of this type of defects, so in this project the use of polylactic acid as a support in regeneration strategies of the cartilage and the mucosa of the airways is considered. Methodology: Firstly, the structure, cytotoxicity and mechanical properties of the polylactic acid supports were characterized. Subsequently, primary chondrocytes were seeded on 3D printed polylactic acid scaffolds with and without hydrogels, and the morphology and expression of type I, type II and aggrecan collagen was evaluated by fluorescent labeling. Primary epithelial cells and the A549 and H460 cell lines were also seeded onto electrohilated membranes of poly-L-lactic acid with and without collagen, and proliferation and morphology were analyzed by fluorescence, as well as the expression of genes related to the respiratory mucosa ( CDH1, CK20 and MUC5AC) by Real Time PCR. Results: The polylactic acid scaffolds were found to be non-cytotoxic, in addition to showing mechanical properties similar to those of the trachea, with a Young's modulus between 2.6 ± 0.1 and 3.6 ± 0.2 MPa depending on the thickness. On the other hand, the chondrocytes grown in the PLA scaffolds expressed hyaline cartilage proteins such as collagen II and aggrecan mainly when the scaffold was combined with the alginate and agarose hydrogel. In addition, the epithelial cells showed an adequate proliferation on membranes with and without collagen, and in th
- Published
- 2019
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