by Keyword: Differential expression
Rosell, Alejandro, Krygowska, Agata Adelajda, Perez, Marta Alcon, Cuesta, Cristina, Voisin, Mathieu-Benoit, de Paz, Juan, Sanz-Fraile, Hector, Rajeeve, Vinothini, Carreras-Gonzalez, Ana, Berral-Gonzalez, Alberto, Swinyard, Ottilie, Gabande-Rodriguez, Enrique, Downward, Julian, Alcaraz, Jordi, Anguita, Juan, Garcia-Macias, Carmen, Cutillas, Pedro R, Cutillas, Pedro R, Sanchez, Esther Castellano, (2025). RAS-p110α signalling in macrophages is required for effective inflammatory response and resolution of inflammation Elife 13, RP94590 
Macrophages are crucial in the body's inflammatory response, with tightly regulated functions for optimal immune system performance. Our study reveals that the RAS-p110 alpha signalling pathway, known for its involvement in various biological processes and tumourigenesis, regulates two vital aspects of the inflammatory response in macrophages: the initial monocyte movement and later-stage lysosomal function. Disrupting this pathway, either in a mouse model or through drug intervention, hampers the inflammatory response, leading to delayed resolution and the development of more severe acute inflammatory reactions in live models. This discovery uncovers a previously unknown role of the p110 alpha isoform in immune regulation within macrophages, offering insight into the complex mechanisms governing their function during inflammation and opening new avenues for modulating inflammatory responses.
JTD Keywords: Actin, Cytoskeleton, Differential expression analysis, Inflammation, Inhibition, Macrophages, Monocytes, Nf-kappa-b, P110-alpha isoform, Pathwa, Ras, Ras-p110 alph, Recruitment
Han, J, Jeong, HJ, Choi, J, Kim, H, Kwon, T, Myung, K, Park, K, Park, JI, Sanchez, S, Jung, DB, Yu, CS, Song, IH, Shim, JH, Myung, SJ, Kang, HW, Park, TE, (2025). Bioprinted Patient-Derived Organoid Arrays Capture Intrinsic and Extrinsic Tumor Features for Advanced Personalized Medicine Advanced Science 12, 2407871
Heterogeneity and the absence of a tumor microenvironment (TME) in traditional patient-derived organoid (PDO) cultures limit their effectiveness for clinical use. Here, Embedded Bioprinting-enabled Arrayed PDOs (Eba-PDOs) featuring uniformly arrayed colorectal cancer (CRC) PDOs within a recreated TME is presented. This model faithfully reproduces critical TME attributes, including elevated matrix stiffness (approximate to 7.5 kPa) and hypoxic conditions found in CRC. Transcriptomic and immunofluorescence microscopy analysis reveal that Eba-PDOs more accurately represent actual tissues compared to traditional PDOs. Furthermore, Eba-PDO effectively capture the variability of CEACAM5 expression-a critical CRC marker-across different patients, correlating with patient classification and differential responses to 5-fluorouracil treatment. This method achieves an uniform size and shape within PDOs from the same patient while preserving distinct morphological features among those from different individuals. These features of Eba-PDO enable the efficient development of a label-free, morphology-based predictive model using supervised learning, enhancing its suitability for clinical applications. Thus, this approach to PDO bioprinting is a promising tool for generating personalized tumor models and advancing precision medicine.
JTD Keywords: Association, Cancer, Carcinoembryonic antigen-expression, Colorectal cancer, Cultur, Differential expression, Embedded bioprinting, Extracellular-matrix, Inter-patient variability, Patient-derived tumor organoid, Stem-cell, Stiffness, Supervised learning, Tissues, Tumor matrix stiffnes
Palma-Florez, S, Lagunas, A, Mir, M, (2024). Neurovascular unit on a chip: the relevance and maturity as an advanced in vitro model Neural Regeneration Research 19, 1165-1166
[No abstract available]
JTD Keywords: Alpha synuclein, Animal cell, Article, Astrocyte, Brain blood flow, Capillary endothelial cell, Cardiovascular system, Cell interaction, Coculture, Degenerative disease, Differential expression analysis, Endothelium cell, Entactin, Extracellular matrix, Fibronectin, Gene expression, Human, Human cell, Huntington chorea, Hydroxyapatite, In vitro study, Induced pluripotent stem cell, Laminin, Macrophage, Maturity, Microglia, Nervous system, Nervous system inflammation, Neuroprotection, Neurotoxicity, Nonhuman, Parkinson disease, Pericyte, Perivascular space, Personalized medicine, Shear stress, Smooth muscle cell, Three dimensional printing
