Biomedicina: Enviaments recents
Ara mostrant els elements 581-600 de 779
Les neurotrofines en el Sistema Nerviós Central: Efectes neuroprotectors i implicacions
La formació de les connexions i 1'estabilització dels circuits neuronals són crítiques en el desenvolupament del sistema nerviós, ja que són la base de les seves funcions, com són 1'aprenentatge i la memòria. Durant el ...
PCAF regulates the stability of the transcriptional regulator and cyclin-dependent kinase inhibitor p27Kip1
P27(Kip1) (p27) is a member of the Cip/Kip family of cyclin-dependent kinase inhibitors. Recently, a new function of p27 as transcriptional regulator has been reported. It has been shown that p27 regulates the expression ...
Cyclin-Dependent Kinase 5 Dysfunction Contributes to Depressive-like Behaviors in Huntington's Disease by Altering the DARPP-32 Phosphorylation Status in the Nucleus Accumbens
Background: Depression is the most common psychiatric condition in Huntington's disease (HD), with rates more than twice those found in the general population. At the present time, there is no established molecular evidence ...
Astrocytic BDNF and TrkB regulate severity and neuronal activity in mouse models of temporal lobe epilepsy
Astrocytes have emerged as crucial regulators of neuronal network activity, synapse formation, and underlying behavioral and cognitive processes. Despite some pathways have been identified, the communication between ...
Annexin A6 improves anti-migratory and anti-invasive properties of tyrosine kinase inhibitors in EGFR overexpressing human squamous epithelial cells
Annexin A6 (AnxA6), a member of the calcium (Ca2+ ) and membrane binding annexins, is known to stabilize and establish the formation of multifactorial signaling complexes. At the plasma membrane, AnxA6 is a scaffold for ...
Measuring mechanical stress in living tissues
Living tissues are active, multifunctional materials capable of generating, sensing, withstanding and responding to mechanical stress. These capabilities enable tissues to adopt complex shapes during development, to sustain ...
Gene variation at immunomodulatory and cell adhesion molecules loci impacts primary Sjögren's syndrome
Primary Sjögren's syndrome (pSS) is an autoimmune disease triggered by a combination of environmental and host genetic factors, which results in the focal lymphocytic infiltration of exocrine glands causing eye and mouth ...
Gas partial pressure in cultured cells: patho-physiological importance and methodological approaches
Gas partial pressures within the cell microenvironment are one of the key modulators of cell pathophysiology. Indeed, respiratory gases (O2 and CO2) are usually altered in respiratory diseases and gasotransmitters (CO, NO, ...
AFM and Microrheology in the Zebrafish Embryo Yolk Cell
Elucidating the factors that direct the spatio-temporal organization of evolving tissues is one of the primary purposes in the study of development. Various propositions claim to have been important contributions to the ...
Nanoparticles to Target and Treat Macrophages:The Ockham's Concept?
Nanoparticles are nanomaterials with three external nanoscale dimensions and an average size ranging from 1 to 1000 nm. Nanoparticles have gained notoriety in technological advances due to their tunable physical, chemical, ...
Inhibition of soluble epoxide hydrolase modulates inflammation and autophagy in obese adipose tissue and liver. Role for omega-3 epoxides
Soluble epoxide hydrolase (sEH) is an emerging therapeutic target in a number of diseases that have inflammation as a common underlying cause. sEH limits tissue levels of cytochrome P450 (CYP) epoxides derived from omega-6 ...
Collective cell durotaxis emerges from long-range intercellular force transmission
The ability of cells to follow gradients of extracellular matrix stiffness-durotaxis-has been implicated in development, fibrosis, and cancer. Here, we found multicellular clusters that exhibited durotaxis even if isolated ...
Proteasome inhibition reduces proliferation, collagen expression, and inflammatory cytokine production in nasal mucosa and polyp fibroblasts
Proteasome inhibitors, used in cancer treatment for their proapoptotic effects, have anti-inflammatory and antifibrotic effects on animal models of various inflammatory and fibrotic diseases. Their effects in cells from ...
Quantifying forces in cell biology
Cells exert, sense, and respond to physical forces through an astounding diversity of mechanisms. Here we review recently developed tools to quantify the forces generated by cells. We first review technologies based on ...
Cognitive Reserve Proxies Relate to Gray Matter Loss in Cognitively Healthy Elderly with Abnormal Cerebrospinal Fluid Amyloid-β Levels
Cognitive reserve capacity may increase tolerance of neurodegenerative processes. However, its role regarding amyloid-B (AB 42) deposition in cognitively normal subjects is not well understood. We aimed to investigate the ...
Aberrant TIMP-1 overexpression in tumor-associated fibroblasts drives tumor progression through CD63 in lung adenocarcinoma
Tissue inhibitor of metalloproteinase-1 (TIMP-1) is an important regulator of extracellular matrix turnover that has been traditionally regarded as a potential tumor suppressor owing to its inhibitory effects of matrix ...
Nintedanib selectively inhibits the activation and tumour-promoting effects of fibroblasts from lung adenocarcinoma patients
Background: Nintedanib is a clinically approved multikinase receptor inhibitor to treat non-small cell lung cancer with adenocarcinoma (ADC) histology in combination with docetaxel, based on the clinical benefits reported ...
Mammalian lipid droplets are innate immune hubs integrating cell metabolism and host defense.
Lipid droplets (LDs) are the major lipid storage organelles of eukaryotic cells and a source of nutrients for intracellular pathogens. We demonstrate that mammalian LDs are endowed with a protein-mediated antimicrobial ...
Proteomics Analysis of Extracellular Matrix Remodeling During Zebrafish Heart Regeneration
Adult zebrafish, in contrast to mammals, are able to regenerate their hearts in response to injury or experimental amputation. Our understanding of the cellular and molecular bases that underlie this process, although ...
Temporal changes in the expression and distribution of adhesion molecules during liver development and regeneration
We have compared by immunocytochemistry and immunoblotting the expression and distribution of adhesion molecules participating in cell-matrix and cell-cell interactions during embryonic development and regeneration of rat ...
