Articles tagged with Epithelial Cells
Researchers at Gladstone Institutes have discovered how SARS-CoV-2 protein ORF8 hijacks immune cells to cause hyperinflammation, leading to severe lung damage. Blocking ORF8 reduces lung inflammation and damage in mice infected with SARS-CoV-2, offering a promising new path for developing treatments.
A recent study found that monocyte-derived IL-1β promotes CRC progression by activating a positive feedback loop driving EMT, tumor growth, and metastasis. The p65-KRT7-ILK axis is identified as a key regulator of CRC progression.
A study led by IBEC researchers reveals that cells reorganize their internal scaffolding in response to sustained stretching, forming supracellular networks and 'uncaging' their nuclei. This process is facilitated by interactions between keratin and actin filaments.
Epithelial tissues behave like solids while retaining the disordered structure of liquids. The team developed an active vertex model that incorporated mechanochemical feedback to reproduce experimental signatures of glass dynamics, revealing a link between cellular mechanics, actin organisation, and collective tissue behaviour.
Researchers from University of Missouri-Columbia investigated mesenchymal-epithelial transition (MET) in the uterus, a process where cells rebuild the uterine lining after shedding. MET helps restore the uterine lining quickly, but its dysregulation can lead to inflammation, lesions, or cancer, potentially affecting fertility.
Researchers from UH, Baylor College of Medicine and MD Anderson Cancer Center propose a new treatment approach for Crohn's disease by targeting the stress signal that fuels inflammation. They found that repurposing two existing cancer medications can promote natural repair and regeneration of the intestinal lining.
Researchers developed a new mathematical model to understand wound healing, which found that surrounding tissue forces play a crucial role in closing wounds. The model predicts that these forces cause wounds to stretch or squish as they close, aligning with the natural direction of the tissue.
Scientists have identified a new cell type and discovered that many normal-looking prostate cells harbor cancer-related changes. The study's findings could lead to new risk factors, earlier detection methods, and more targeted therapies for patients at high risk of aggressive disease.
Ovarian cancer cells recruit protective mesothelial cells in abdominal fluid to form hybrid cell clusters that resist chemotherapy. These clusters use spike-like structures called invadopodia to invade surrounding tissue. The discovery opens new treatment possibilities and could help doctors monitor disease progression.
In sepsis, endothelial cells undergo programmed death-apoptosis, pyroptosis, ferroptosis, and excessive autophagy, leading to barrier collapse. Targeted therapeutic strategies include glycocalyx protectors, barrier stabilizers, anticoagulant approaches, which aim to repair or replace the damaged endothelial barrier.
AcCELLerate has partnered with ATCC to provide customized Master, Working, and assay-ready instaCELL banks for research clients. Researchers will gain access to high-quality, authenticated cell lines with increased assay reproducibility.
Researchers identified C-C chemokine ligand 5 (CCL5) as a key player in kidney injury and repair, with the molecule behaving both protectively and harmfully. The study suggests future drugs could target only its damaging effects, paving the way for more precise treatments for chronic kidney disease.
A randomized clinical trial showed that DMEK graft success is comparable between diabetes-positive and non-diabetes donor corneas after 1 year. The study's findings support the use of diabetes-positive donor corneas for endothelial keratoplasty procedures.
Researchers at Aarhus University used mini-organs to show that cervical epithelial cells actively detect and combat infections, with uninfected cells becoming immune-active. This discovery opens opportunities for mucosal vaccines and targeted treatments against STIs and infertility.
A study found that BMP9 signaling is crucial for tooth root development, influencing odontoblast differentiation and HERS cell proliferation. The findings reveal a complex regulatory network involving TGF-β and Wnt signaling pathways.
Researchers successfully created functional ureter tissue from pluripotent stem cells, bringing them closer to developing transplantable kidneys that can produce and expel urine. The achievement is a significant step toward next-generation regenerative therapies.
A new study reveals that body cells change their shape to close gaps such as wounds, using a combination of crawling movements and 'purse-string' contractions. The researchers discovered that the endoplasmic reticulum's ability to reorganize in response to edge curvature plays a crucial role in epithelial cell movement.
A study published in iScience found that cells in breast tissues of women with African ancestry send cues promoting breast cancer growth. Researchers discovered that PZP cells activate epithelial cells, allowing them to invade surrounding tissue.
A study found that co-infection by Pseudomonas aeruginosa and Mycobacterium abscessus suppresses immune responses, leading to worsened lung function decline in patients with cystic fibrosis and COPD. The presence of both bacteria together reduces the production of key immune signalling molecules, effectively dampening the body's inflam...
Researchers discovered that gamma-actin increases the rigidity of cell membranes while beta-actin filaments are less stiff. This mechanism may contribute to hearing loss by affecting the apical membrane's stiffness essential for auditory function.
Researchers from UMass Amherst have discovered that epithelial cells communicate with slow electrical signals, 1,000 times slower than nerve impulses. This finding could enable new applications in wearable sensors, wound healing and more.
A novel subset of progenitor cells, called high-risk MSCs, reside in the stroma and promote DNA damage and tumor growth. These cells play a critical role in the initiation of ovarian cancer, particularly in older women or those with BRCA mutations.
A newly discovered mechanism has identified a key protein, AP2A1, that toggles between 'young' and 'old' cell states. By suppressing AP2A1 in older cells, researchers were able to reverse senescence and promote cellular rejuvenation. This breakthrough may lead to new treatment targets for diseases associated with old age.
Researchers at University of Gothenburg have identified a critical mechanism to slow down Crohn's disease progression by repairing the protective barrier of the gut. By reinforcing the gut's natural defenses, new drug targets may be developed to treat the disease.
Researchers found that immunosuppression in prostate cancer is associated with a specialised epithelial subtype. This interaction between the immune system and club-like epithelial cells can lead to treatment resistance in patients with advanced, treatment-resistant prostate cancer.
A new study from the University of Texas M. D. Anderson Cancer Center found that at least 3% of normal breast tissue cells in healthy women contain chromosome abnormalities associated with invasive breast cancer, which may guide future approaches to early detection.
Researchers found that sodium butyrate inhibits necroptosis in intestinal epithelial cells of liver cirrhosis by regulating MLKL via E2F1. Fecal BA levels were negatively correlated with serum MLKL levels, suggesting a protective effect.
A team of researchers has developed strategies to identify regulators of intestinal hormone secretion, which could lead to new treatments for metabolic and gut motility disorders. They used human organoids to study the function of 'nutrient sensors' on hormone-producing cells in the gut.
A research team has successfully recreated wrinkle structures in biological tissue in vitro, revealing the mechanisms behind their formation. The study found that compressive forces and dehydration play a crucial role in wrinkle formation, mirroring aging skin effects.
Researchers at the University of Virginia School of Engineering and Applied Science have designed a drug-carrying molecule that can slip past the lung's natural defenses. The nanocarrier, called PEG-BB, is shaped like a bottlebrush and mimics the properties of mucus, allowing it to move quickly through the airway.
Researchers have successfully infected gastrointestinal epithelial cells with Chlamydia trachomatis using lab-grown human organoids. This finding supports the theory that Chlamydia can form a reservoir in the human gut, highlighting the importance of further investigation into this potential reservoir.
A $1.9 million NIH grant will support research on closing cellular gaps, with implications for wound healing and cellular regeneration therapies. The goal is to develop a theoretical understanding of the process, enabling control over individual factors and potential applications in regenerating heart cells.
Researchers created a new cell model to study the effects of senescence on lung fibroblasts. Senescent alveolar epithelial cells triggered fibrotic activation in lung fibroblasts, which was attenuated by senolytic therapy.
A distinct TNF-α signaling program has been identified as a key driver of epithelial cancer development, contributing to cell proliferation and invasion. The researchers found that this program is active in both normal tissues and tumors, but its level of activity correlates with tumor aggressiveness.
Researchers at Bielefeld University discovered that certain gluten-derived molecules, including the 33-mer deamidated gliadin peptide (DGP), form nanosized structures that accumulate in gut epithelial cells and lead to leaky gut syndrome. This triggers chronic inflammation and autoimmune responses in celiac disease patients.
A new Dartmouth-led study has provided new insights into the therapeutic potential of bacteriophage therapy for treating diseases like cystic fibrosis. Researchers found that respiratory epithelial cells sense and respond to therapeutic phages, and interactions between phages and epithelial cells are heterogenous in nature.
Researchers found that cells adapt by packing into unusual geometrical shapes, known as scutoids, in response to pressure changes. This discovery sheds light on how cells cope with physical environment changes and has potential implications for understanding healthy cell adaptation.
Researchers have identified a subset of intestinal epithelial cells that act as both the major target and responder in a mouse model of gut infection by Citrobacter rodentium. These cells, known as distal colonocytes, trigger a unique gene-expression program when infected with the bacteria.
Researchers have developed a new organoid model to study the thymus and its function in training T cells. The model enables long-term culture of TECs, which could lead to new insights into treating patients with impaired thymus function.
Neotame has been shown to cause previously healthy gut bacteria to become diseased and invade the gut wall, potentially leading to irritable bowel syndrome and sepsis. The study also found a breakdown of the epithelial barrier, which forms part of the gut wall.
Therapeutic phages can detect epithelial cells of the human respiratory tract, eliciting proinflammatory responses. Specific phage properties and airway microenvironment influence these responses.
The Campos Lab will investigate how human papillomavirus moves from lower epithelial cells to the upper layers and into the nucleus, where it hijacks the cell to make copies of itself. By understanding this process, researchers hope to shed light on cell division and viral transmission.
A new study found that nasal cells from children respond quickly to SARS-CoV-2 by increasing interferon, restricting viral replication. In contrast, nasal cells from elderly individuals produce more infectious virus particles and experience increased cell shedding and damage.
Cadmium exposure from cigarette smoke can lead to increased ANO1 expression in airway epithelial cells, exacerbating COPD. MicroRNA-381 negatively regulates ANO1, but its downregulation by cadmium could worsen disease severity.
Researchers studied how epithelial cells sense small changes in their environment using ion channels. They found that even small movements can trigger rapid intracellular calcium changes via mechanosensitive cation channels, which play a key role in touch sensation and other physiological functions.
A novel microfluidic device enables detailed observation of gut neuron and epithelial cell interactions, contributing to our knowledge of gut physiology. The device has significant implications for medical research and treatment of conditions like irritable bowel syndrome.
The study found that solely the omicron variant influences cell cycle genes, leading to increased p21 expression and a senescence-associated secretory phenotype. This results in premature cellular senescence, potentially contributing to the reported cytokine storm and development of long-COVID.
Researchers found that cancer cells with multiple mutations alter cell competition, allowing them to infiltrate and form highly invasive tumors. The study identified a key mechanism, MMP21, which promotes the production of diffusely invasive cancer cells.
Researchers found that apoptotic cells induce apoptosis in neighboring hair follicle cells during the regression cycle. The study proposes a mathematical model of the hair follicle regression cycle, which suggests that the dermal papilla plays an essential role in initiating apoptosis.
Researchers found that children's nasal mucosa has a more active and alert immune system than adults, which helps fight SARS-CoV-2. This innate strong protective mechanism is thought to also defend against other viruses.
Researchers developed a human in vitro model of radiation-induced lung injury, closely mimicking the complexities of the disease. The Human Lung Alveolus Chip recapitulates hallmarks of RILI, including DNA damage, inflammation, and injury to lung cells and blood vessels.
Macrophages produce polyamines spermidine and spermine, which benefit epithelial cells, promoting their proliferation and defense mechanisms. This "commensal metabolism" supports the efficient self-renewal of the intestinal epithelium.
Researchers identified abnormal keratin expression patterns in senescent ocular surface cells, which may contribute to severe ocular surface diseases. Gene expression profiles showed substantial differences between senescent and non-senescent cells, highlighting their potential role in pathology.
Researchers from Trinity College Dublin have made significant discoveries on how lung cells respond to influenza viruses, identifying two key molecular pathways that trigger the release of cytokines and cell death. These findings hold promise for treating people affected by such viruses.
Researchers at Kyoto University have discovered the mechanism by which breast cancer forms in mammalian epithelial cells. The team found that approximately 20 mutations accumulate annually in each cell until menopause, after which the rate decreases significantly.
Researchers at Children's Hospital of Philadelphia found that NSAIDs exacerbate C. difficile infections by disrupting epithelial cell mitochondria, sensiting them to toxins. The study shows that NSAIDs and C. difficile toxins work synergistically to increase virulence, leading to increased disease severity and mortality.
Researchers from Kyoto University developed a microchip using human iPS cells to measure transport capacity of membrane proteins, potentially giving test animals respite. The model simulates glucose reabsorption and drug excretion in renal proximal tubules, enabling patient-specific disease modeling and personalized medicine studies.
Scientists at Max Delbrück Center have developed a tool to screen drugs that can help treat viral diseases like COVID-19 by analyzing the immune response of lung epithelial cells. The technology uses synthetic locus control region (sLCR) DNA sequences that glow red when triggered, enabling researchers to identify potential treatments.
Two studies investigate long-term consequences of COVID-19, identifying potential drug targets for treating chronic disease. Researchers found novel pathways in the lungs and immune system that may lead to effective treatment options, including therapies targeting immune dysfunction and mucous cell differentiation.
Research identifies Indian Hedgehog protein as a key driver of chronic kidney disease and heart damage, offering new hope for treatments. The findings suggest that blocking the protein's actions could improve kidney function and reduce cardiovascular risk.